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 2003-2008 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 "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         ber_int_t       si_msgid;
 100         Avlnode                 *si_presentlist;
 101         LDAP                    *si_ld;
 102         Connection              *si_conn;
 103         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 104         ldap_pvt_thread_mutex_t si_mutex;
 105 } syncinfo_t;
 106
 107 static int syncuuid_cmp( const void *, const void * );
 108 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 109 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 110 static int syncrepl_message_to_op(
 111                                         syncinfo_t *, Operation *, LDAPMessage * );
 112 static int syncrepl_message_to_entry(
 113                                         syncinfo_t *, Operation *, LDAPMessage *,
 114                                         Modifications **, Entry **, int );
 115 static int syncrepl_entry(
 116                                         syncinfo_t *, Operation*, Entry*,
 117                                         Modifications**,int, struct berval*,
 118                                         struct berval *cookieCSN );
 119 static int syncrepl_updateCookie(
 120                                         syncinfo_t *, Operation *, struct berval *,
 121                                         struct sync_cookie * );
 122 static struct berval * slap_uuidstr_from_normalized(
 123                                         struct berval *, struct berval *, void * );
 124
 125 /* callback functions */
 126 static int dn_callback( Operation *, SlapReply * );
 127 static int nonpresent_callback( Operation *, SlapReply * );
 128 static int null_callback( Operation *, SlapReply * );
 129
 130 static AttributeDescription *sync_descs[4];
 131
 132 static const char *
 133 syncrepl_state2str( int state )
 134 {
 135         switch ( state ) {
 136         case LDAP_SYNC_PRESENT:
 137                 return "PRESENT";
 138
 139         case LDAP_SYNC_ADD:
 140                 return "ADD";
 141
 142         case LDAP_SYNC_MODIFY:
 143                 return "MODIFY";
 144
 145         case LDAP_SYNC_DELETE:
 146                 return "DELETE";
 147         }
 148
 149         return "UNKNOWN";
 150 }
 151
 152 static void
 153 init_syncrepl(syncinfo_t *si)
 154 {
 155         int i, j, k, l, n;
 156         char **attrs, **exattrs;
 157
 158         if ( !sync_descs[0] ) {
 159                 sync_descs[0] = slap_schema.si_ad_objectClass;
 160                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 161                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 162                 sync_descs[3] = NULL;
 163         }
 164
 165         if ( si->si_allattrs && si->si_allopattrs )
 166                 attrs = NULL;
 167         else
 168                 attrs = anlist2attrs( si->si_anlist );
 169
 170         if ( attrs ) {
 171                 if ( si->si_allattrs ) {
 172                         i = 0;
 173                         while ( attrs[i] ) {
 174                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 175                                         for ( j = i; attrs[j] != NULL; j++ ) {
 176                                                 if ( j == i )
 177                                                         ch_free( attrs[i] );
 178                                                 attrs[j] = attrs[j+1];
 179                                         }
 180                                 } else {
 181                                         i++;
 182                                 }
 183                         }
 184                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 185                         attrs[i] = ch_strdup("*");
 186                         attrs[i + 1] = NULL;
 187
 188                 } else if ( si->si_allopattrs ) {
 189                         i = 0;
 190                         while ( attrs[i] ) {
 191                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 192                                         for ( j = i; attrs[j] != NULL; j++ ) {
 193                                                 if ( j == i )
 194                                                         ch_free( attrs[i] );
 195                                                 attrs[j] = attrs[j+1];
 196                                         }
 197                                 } else {
 198                                         i++;
 199                                 }
 200                         }
 201                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 202                         attrs[i] = ch_strdup("+");
 203                         attrs[i + 1] = NULL;
 204                 }
 205
 206                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 207                         j = 0;
 208                         while ( attrs[j] ) {
 209                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 210                                         for ( k = j; attrs[k] != NULL; k++ ) {
 211                                                 if ( k == j )
 212                                                         ch_free( attrs[k] );
 213                                                 attrs[k] = attrs[k+1];
 214                                         }
 215                                 } else {
 216                                         j++;
 217                                 }
 218                         }
 219                 }
 220
 221                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 222
 223                 if ( si->si_allopattrs ) {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 225                 } else {
 226                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 227                 }
 228
 229                 /* Add Attributes */
 230                 if ( si->si_allopattrs ) {
 231                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 232                 } else {
 233                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 234                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 235                         }
 236                 }
 237                 attrs[ n ] = NULL;
 238
 239         } else {
 240
 241                 i = 0;
 242                 if ( si->si_allattrs == si->si_allopattrs ) {
 243                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 244                         attrs[i++] = ch_strdup( "*" );
 245                         attrs[i++] = ch_strdup( "+" );
 246                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 247                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 248                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 249                         attrs[i++] = ch_strdup( "*" );
 250                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 251                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 252                         }
 253                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 254                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 255                         attrs[i++] = ch_strdup( "+" );
 256                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 257                 }
 258                 attrs[i] = NULL;
 259         }
 260
 261         si->si_attrs = attrs;
 262
 263         exattrs = anlist2attrs( si->si_exanlist );
 264
 265         if ( exattrs ) {
 266                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 267
 268                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 269                         j = 0;
 270                         while ( exattrs[j] != NULL ) {
 271                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 272                                         ch_free( exattrs[j] );
 273                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 274                                                 exattrs[k] = exattrs[k+1];
 275                                         }
 276                                 } else {
 277                                         j++;
 278                                 }
 279                         }
 280                 }
 281
 282                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 283                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 284                                 ObjectClass     *oc;
 285                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 286                                         k = 0;
 287                                         while ( oc->soc_required[k] ) {
 288                                                 if ( !strcmp( exattrs[i],
 289                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 290                                                         ch_free( exattrs[i] );
 291                                                         for ( l = i; exattrs[l]; l++ ) {
 292                                                                 exattrs[l] = exattrs[l+1];
 293                                                         }
 294                                                 } else {
 295                                                         k++;
 296                                                 }
 297                                         }
 298                                 }
 299                         }
 300                 }
 301
 302                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 303
 304                 if ( i != n )
 305                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 306         }
 307
 308         si->si_exattrs = exattrs;
 309 }
 310
 311 typedef struct logschema {
 312         struct berval ls_dn;
 313         struct berval ls_req;
 314         struct berval ls_mod;
 315         struct berval ls_newRdn;
 316         struct berval ls_delRdn;
 317         struct berval ls_newSup;
 318 } logschema;
 319
 320 static logschema changelog_sc = {
 321         BER_BVC("targetDN"),
 322         BER_BVC("changeType"),
 323         BER_BVC("changes"),
 324         BER_BVC("newRDN"),
 325         BER_BVC("deleteOldRDN"),
 326         BER_BVC("newSuperior")
 327 };
 328
 329 static logschema accesslog_sc = {
 330         BER_BVC("reqDN"),
 331         BER_BVC("reqType"),
 332         BER_BVC("reqMod"),
 333         BER_BVC("reqNewRDN"),
 334         BER_BVC("reqDeleteOldRDN"),
 335         BER_BVC("reqNewSuperior")
 336 };
 337
 338 static int
 339 ldap_sync_search(
 340         syncinfo_t *si,
 341         void *ctx )
 342 {
 343         BerElementBuffer berbuf;
 344         BerElement *ber = (BerElement *)&berbuf;
 345         LDAPControl c[2], *ctrls[3];
 346         int rc;
 347         int rhint;
 348         char *base;
 349         char **attrs, *lattrs[8];
 350         char *filter;
 351         int attrsonly;
 352         int scope;
 353
 354         /* setup LDAP SYNC control */
 355         ber_init2( ber, NULL, LBER_USE_DER );
 356         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 357
 358         /* If we're using a log but we have no state, then fallback to
 359          * normal mode for a full refresh.
 360          */
 361         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 362                 si->si_logstate = SYNCLOG_FALLBACK;
 363         }
 364
 365         /* Use the log parameters if we're in log mode */
 366         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 367                 logschema *ls;
 368                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 369                         ls = &accesslog_sc;
 370                 else
 371                         ls = &changelog_sc;
 372                 lattrs[0] = ls->ls_dn.bv_val;
 373                 lattrs[1] = ls->ls_req.bv_val;
 374                 lattrs[2] = ls->ls_mod.bv_val;
 375                 lattrs[3] = ls->ls_newRdn.bv_val;
 376                 lattrs[4] = ls->ls_delRdn.bv_val;
 377                 lattrs[5] = ls->ls_newSup.bv_val;
 378                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 379                 lattrs[7] = NULL;
 380
 381                 rhint = 0;
 382                 base = si->si_logbase.bv_val;
 383                 filter = si->si_logfilterstr.bv_val;
 384                 attrs = lattrs;
 385                 attrsonly = 0;
 386                 scope = LDAP_SCOPE_SUBTREE;
 387         } else {
 388                 rhint = 1;
 389                 base = si->si_base.bv_val;
 390                 filter = si->si_filterstr.bv_val;
 391                 attrs = si->si_attrs;
 392                 attrsonly = si->si_attrsonly;
 393                 scope = si->si_scope;
 394         }
 395         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 396                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 397         } else {
 398                 si->si_type = si->si_ctype;
 399         }
 400
 401         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 402         {
 403                 ber_printf( ber, "{eOb}",
 404                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 405         } else {
 406                 ber_printf( ber, "{eb}",
 407                         abs(si->si_type), rhint );
 408         }
 409
 410         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 411                 ber_free_buf( ber );
 412                 return rc;
 413         }
 414
 415         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 416         c[0].ldctl_iscritical = si->si_type < 0;
 417         ctrls[0] = &c[0];
 418
 419         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 420                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 421                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 422                 c[1].ldctl_iscritical = 1;
 423                 ctrls[1] = &c[1];
 424                 ctrls[2] = NULL;
 425         } else {
 426                 ctrls[1] = NULL;
 427         }
 428
 429         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 430                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 431         ber_free_buf( ber );
 432         return rc;
 433 }
 434
 435 static int
 436 check_syncprov(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         AttributeName at[2];
 441         Attribute a = {0};
 442         Entry e = {0};
 443         SlapReply rs = {0};
 444         int i, j, changed = 0;
 445
 446         /* Look for contextCSN from syncprov overlay. If
 447          * there's no overlay, this will be a no-op. That means
 448          * this is a pure consumer, so local changes will not be
 449          * allowed, and all changes will already be reflected in
 450          * the cookieState.
 451          */
 452         a.a_desc = slap_schema.si_ad_contextCSN;
 453         e.e_attrs = &a;
 454         e.e_name = op->o_bd->be_suffix[0];
 455         e.e_nname = op->o_bd->be_nsuffix[0];
 456         at[0].an_name = a.a_desc->ad_cname;
 457         at[0].an_desc = a.a_desc;
 458         BER_BVZERO( &at[1].an_name );
 459         rs.sr_entry = &e;
 460         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 461         rs.sr_attrs = at;
 462         op->o_req_dn = e.e_name;
 463         op->o_req_ndn = e.e_nname;
 464
 465         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 466         i = backend_operational( op, &rs );
 467         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 468                 int num = a.a_numvals;
 469                 /* check for differences */
 470                 if ( num != si->si_cookieState->cs_num ) {
 471                         changed = 1;
 472                 } else {
 473                         for ( i=0; i<num; i++ ) {
 474                                 if ( ber_bvcmp( &a.a_nvals[i],
 475                                         &si->si_cookieState->cs_vals[i] )) {
 476                                         changed = 1;
 477                                         break;
 478                                 }
 479                         }
 480                 }
 481                 if ( changed ) {
 482                         ber_bvarray_free( si->si_cookieState->cs_vals );
 483                         ch_free( si->si_cookieState->cs_sids );
 484                         si->si_cookieState->cs_num = num;
 485                         si->si_cookieState->cs_vals = a.a_nvals;
 486                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 487                                 num, NULL );
 488                         si->si_cookieState->cs_age++;
 489                 } else {
 490                         ber_bvarray_free( a.a_nvals );
 491                 }
 492                 ber_bvarray_free( a.a_vals );
 493         }
 494         /* See if the cookieState has changed due to anything outside
 495          * this particular consumer. That includes other consumers in
 496          * the same context, or local changes detected above.
 497          */
 498         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 499                 si->si_cookieState->cs_age ) {
 500                 if ( !si->si_syncCookie.numcsns ) {
 501                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 502                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 503                                 si->si_cookieState->cs_vals, NULL );
 504                         changed = 1;
 505                 } else {
 506                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 507                                 /* bogus, just dup everything */
 508                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 509                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 510                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 511                                                 si->si_cookieState->cs_vals, NULL );
 512                                         changed = 1;
 513                                         break;
 514                                 }
 515                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 516                                         if ( si->si_syncCookie.sids[i] !=
 517                                                 si->si_cookieState->cs_sids[j] )
 518                                                 continue;
 519                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 520                                                 &si->si_cookieState->cs_vals[j] ))
 521                                                 break;
 522                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 523                                                 &si->si_cookieState->cs_vals[j] );
 524                                         changed = 1;
 525                                         break;
 526                                 }
 527                         }
 528                 }
 529         }
 530         if ( changed ) {
 531                 si->si_cookieAge = si->si_cookieState->cs_age;
 532                 ch_free( si->si_syncCookie.octet_str.bv_val );
 533                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 534                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 535                         si->si_syncCookie.sid );
 536         }
 537         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 538         return changed;
 539 }
 540
 541 static int
 542 do_syncrep1(
 543         Operation *op,
 544         syncinfo_t *si )
 545 {
 546         int     rc;
 547         int cmdline_cookie_found = 0;
 548
 549         struct sync_cookie      *sc = NULL;
 550 #ifdef HAVE_TLS
 551         void    *ssl;
 552 #endif
 553
 554         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 555         if ( rc != LDAP_SUCCESS ) {
 556                 goto done;
 557         }
 558         op->o_protocol = LDAP_VERSION3;
 559
 560         /* Set SSF to strongest of TLS, SASL SSFs */
 561         op->o_sasl_ssf = 0;
 562         op->o_tls_ssf = 0;
 563         op->o_transport_ssf = 0;
 564 #ifdef HAVE_TLS
 565         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 566                 == LDAP_SUCCESS && ssl != NULL )
 567         {
 568                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 569         }
 570 #endif /* HAVE_TLS */
 571         {
 572                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 573                                                   to use sasl_ssf_t but currently uses ber_len_t */
 574                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 575                 op->o_sasl_ssf = ssf;
 576         }
 577         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 578                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 579
 580         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 581
 582         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 583         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 584
 585         si->si_syncCookie.rid = si->si_rid;
 586
 587         /* whenever there are multiple data sources possible, advertise sid */
 588         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 589                 slap_serverID : -1;
 590
 591         /* We've just started up, or the remote server hasn't sent us
 592          * any meaningful state.
 593          */
 594         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 595                 int i;
 596
 597                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 598                         if ( si->si_rid == sc->rid ) {
 599                                 cmdline_cookie_found = 1;
 600                                 break;
 601                         }
 602                 }
 603
 604                 if ( cmdline_cookie_found ) {
 605                         /* cookie is supplied in the command line */
 606
 607                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 608
 609                         /* ctxcsn wasn't parsed yet, do it now */
 610                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 611                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 612                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 613                         slap_sync_cookie_free( sc, 1 );
 614                 } else {
 615                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 616                         if ( !si->si_cookieState->cs_num ) {
 617                                 /* get contextCSN shadow replica from database */
 618                                 BerVarray csn = NULL;
 619                                 void *ctx = op->o_tmpmemctx;
 620
 621                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 622                                 op->o_req_dn = op->o_req_ndn;
 623
 624                                 /* try to read stored contextCSN */
 625                                 op->o_tmpmemctx = NULL;
 626                                 backend_attribute( op, NULL, &op->o_req_ndn,
 627                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 628                                 op->o_tmpmemctx = ctx;
 629                                 if ( csn ) {
 630                                         si->si_cookieState->cs_vals = csn;
 631                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 632                                         si->si_cookieState->cs_num = i;
 633                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 634                                 }
 635                         }
 636                         if ( si->si_cookieState->cs_num ) {
 637                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 638                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 639                                         si->si_cookieState->cs_vals, NULL )) {
 640                                         rc = LDAP_NO_MEMORY;
 641                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 642                                         goto done;
 643                                 }
 644                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 645                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 646                                         sizeof(int) );
 647                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 648                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 649                         }
 650                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 651                 }
 652
 653                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 654                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 655                         si->si_syncCookie.sid );
 656         } else {
 657                 /* Look for contextCSN from syncprov overlay. */
 658                 check_syncprov( op, si );
 659         }
 660
 661         si->si_refreshDone = 0;
 662
 663         rc = ldap_sync_search( si, op->o_tmpmemctx );
 664
 665         if( rc != LDAP_SUCCESS ) {
 666                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 667                         "ldap_search_ext: %s (%d)\n",
 668                         si->si_ridtxt, ldap_err2string( rc ), rc );
 669         }
 670
 671 done:
 672         if ( rc ) {
 673                 if ( si->si_ld ) {
 674                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 675                         si->si_ld = NULL;
 676                 }
 677         }
 678
 679         return rc;
 680 }
 681
 682 static int
 683 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 684 {
 685         int i, j, match = 0;
 686         const char *text;
 687
 688         *which = 0;
 689
 690         if ( sc1->numcsns < sc2->numcsns ) {
 691                 *which = sc1->numcsns;
 692                 return -1;
 693         }
 694
 695         for (j=0; j<sc2->numcsns; j++) {
 696                 for (i=0; i<sc1->numcsns; i++) {
 697                         if ( sc1->sids[i] != sc2->sids[j] )
 698                                 continue;
 699                         value_match( &match, slap_schema.si_ad_entryCSN,
 700                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 701                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 702                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 703                         if ( match < 0 ) {
 704                                 *which = j;
 705                                 return match;
 706                         }
 707                         break;
 708                 }
 709                 if ( i == sc1->numcsns ) {
 710                         /* sc2 has a sid sc1 lacks */
 711                         *which = j;
 712                         return -1;
 713                 }
 714         }
 715         return match;
 716 }
 717
 718 #define SYNC_PAUSED     -3
 719
 720 static int
 721 do_syncrep2(
 722         Operation *op,
 723         syncinfo_t *si )
 724 {
 725         LDAPControl     **rctrls = NULL;
 726         LDAPControl     *rctrlp;
 727
 728         BerElementBuffer berbuf;
 729         BerElement      *ber = (BerElement *)&berbuf;
 730
 731         LDAPMessage     *msg = NULL;
 732
 733         char            *retoid = NULL;
 734         struct berval   *retdata = NULL;
 735
 736         Entry           *entry = NULL;
 737
 738         int             syncstate;
 739         struct berval   syncUUID = BER_BVNULL;
 740         struct sync_cookie      syncCookie = { NULL };
 741         struct sync_cookie      syncCookie_req = { NULL };
 742         struct berval           cookie = BER_BVNULL;
 743
 744         int             rc,
 745                         err = LDAP_SUCCESS;
 746         ber_len_t       len;
 747
 748         struct berval   *psub;
 749         Modifications   *modlist = NULL;
 750
 751         int                             match, m;
 752
 753         struct timeval *tout_p = NULL;
 754         struct timeval tout = { 0, 0 };
 755
 756         int             refreshDeletes = 0;
 757         BerVarray syncUUIDs = NULL;
 758         ber_tag_t si_tag;
 759
 760         if ( slapd_shutdown ) {
 761                 rc = -2;
 762                 goto done;
 763         }
 764
 765         ber_init2( ber, NULL, LBER_USE_DER );
 766         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 767
 768         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 769
 770         psub = &si->si_be->be_nsuffix[0];
 771
 772         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 773
 774         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 775                 tout_p = &tout;
 776         } else {
 777                 tout_p = NULL;
 778         }
 779
 780         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 781                 tout_p, &msg ) ) > 0 )
 782         {
 783                 if ( slapd_shutdown ) {
 784                         rc = -2;
 785                         goto done;
 786                 }
 787                 switch( ldap_msgtype( msg ) ) {
 788                 case LDAP_RES_SEARCH_ENTRY:
 789                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 790                         /* we can't work without the control */
 791                         rctrlp = NULL;
 792                         if ( rctrls ) {
 793                                 LDAPControl **next;
 794                                 /* NOTE: make sure we use the right one;
 795                                  * a better approach would be to run thru
 796                                  * the whole list and take care of all */
 797                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 798                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 799                                 {
 800                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 801                                                 "got search entry with multiple "
 802                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 803                                         rc = -1;
 804                                         goto done;
 805                                 }
 806                         }
 807                         if ( rctrlp == NULL ) {
 808                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 809                                         "got search entry without "
 810                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 811                                 rc = -1;
 812                                 goto done;
 813                         }
 814                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 815                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 816                         /* FIXME: what if syncUUID is NULL or empty?
 817                          * (happens with back-sql...) */
 818                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 819                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 820                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 821                                         si->si_ridtxt,
 822                                         syncrepl_state2str( syncstate ), 0 );
 823                                 ldap_controls_free( rctrls );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 828                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 829
 830                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 831                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 832
 833                                 if ( !BER_BVISNULL( &cookie ) ) {
 834                                         ch_free( syncCookie.octet_str.bv_val );
 835                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 836                                 }
 837                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 838                                 {
 839                                         slap_parse_sync_cookie( &syncCookie, NULL );
 840                                         if ( syncCookie.ctxcsn ) {
 841                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 842                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 843                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 844                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 845                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 846                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 847                                                                 ldap_controls_free( rctrls );
 848                                                                 rc = 0;
 849                                                                 goto done;
 850                                                         }
 851                                                 }
 852                                         }
 853                                 }
 854                         }
 855                         rc = 0;
 856                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 857                                 modlist = NULL;
 858                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 859                                         syncCookie.ctxcsn )
 860                                 {
 861                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 862                                 } else switch ( rc ) {
 863                                         case LDAP_ALREADY_EXISTS:
 864                                         case LDAP_NO_SUCH_OBJECT:
 865                                         case LDAP_NO_SUCH_ATTRIBUTE:
 866                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 867                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 868                                                 si->si_logstate = SYNCLOG_FALLBACK;
 869                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 870                                                 break;
 871                                         default:
 872                                                 break;
 873                                 }
 874                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 875                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 876                         {
 877                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 878                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 879                                         syncCookie.ctxcsn )
 880                                 {
 881                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 882                                 }
 883                         }
 884                         ldap_controls_free( rctrls );
 885                         if ( modlist ) {
 886                                 slap_mods_free( modlist, 1 );
 887                         }
 888                         if ( rc )
 889                                 goto done;
 890                         break;
 891
 892                 case LDAP_RES_SEARCH_REFERENCE:
 893                         Debug( LDAP_DEBUG_ANY,
 894                                 "do_syncrep2: %s reference received error\n",
 895                                 si->si_ridtxt, 0, 0 );
 896                         break;
 897
 898                 case LDAP_RES_SEARCH_RESULT:
 899                         Debug( LDAP_DEBUG_SYNC,
 900                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 901                                 si->si_ridtxt, 0, 0 );
 902                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 903                                 &rctrls, 0 );
 904 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 905                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 906                                 /* map old result code to registered code */
 907                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 908                         }
 909 #endif
 910                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 911                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 912                                         si->si_logstate = SYNCLOG_FALLBACK;
 913                                 }
 914                                 rc = err;
 915                                 goto done;
 916                         }
 917                         if ( err ) {
 918                                 Debug( LDAP_DEBUG_ANY,
 919                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 920                                         si->si_ridtxt, err, ldap_err2string( err ) );
 921                         }
 922                         if ( rctrls ) {
 923                                 rctrlp = *rctrls;
 924                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 925
 926                                 ber_scanf( ber, "{" /*"}"*/);
 927                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 928                                         ber_scanf( ber, "m", &cookie );
 929
 930                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 931                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 932
 933                                         if ( !BER_BVISNULL( &cookie ) ) {
 934                                                 ch_free( syncCookie.octet_str.bv_val );
 935                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 936                                         }
 937                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 938                                         {
 939                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 940                                         }
 941                                 }
 942                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 943                                 {
 944                                         ber_scanf( ber, "b", &refreshDeletes );
 945                                 }
 946                                 ber_scanf( ber, /*"{"*/ "}" );
 947                         }
 948                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 949                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 950                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 951                         }
 952                         if ( !syncCookie.ctxcsn ) {
 953                                 match = 1;
 954                         } else if ( !syncCookie_req.ctxcsn ) {
 955                                 match = -1;
 956                                 m = 0;
 957                         } else {
 958                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 959                         }
 960                         if ( rctrls ) {
 961                                 ldap_controls_free( rctrls );
 962                         }
 963                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 964                                 /* FIXME : different error behaviors according to
 965                                  *      1) err code : LDAP_BUSY ...
 966                                  *      2) on err policy : stop service, stop sync, retry
 967                                  */
 968                                 if ( refreshDeletes == 0 && match < 0 &&
 969                                         err == LDAP_SUCCESS &&
 970                                         syncCookie_req.numcsns == syncCookie.numcsns )
 971                                 {
 972                                         syncrepl_del_nonpresent( op, si, NULL,
 973                                                 &syncCookie, m );
 974                                 } else {
 975                                         avl_free( si->si_presentlist, ch_free );
 976                                         si->si_presentlist = NULL;
 977                                 }
 978                         }
 979                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 980                         {
 981                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 982                         }
 983                         if ( err == LDAP_SUCCESS
 984                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 985                                 si->si_logstate = SYNCLOG_LOGGING;
 986                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 987                         } else {
 988                                 rc = -2;
 989                         }
 990                         goto done;
 991                         break;
 992
 993                 case LDAP_RES_INTERMEDIATE:
 994                         rc = ldap_parse_intermediate( si->si_ld, msg,
 995                                 &retoid, &retdata, NULL, 0 );
 996                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 997                                 ber_init2( ber, retdata, LBER_USE_DER );
 998
 999                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1000                                 ber_tag_t tag;
1001                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1002                                         Debug( LDAP_DEBUG_SYNC,
1003                                                 "do_syncrep2: %s %s - %s\n",
1004                                                 si->si_ridtxt,
1005                                                 "LDAP_RES_INTERMEDIATE",
1006                                                 "NEW_COOKIE" );
1007                                         ber_scanf( ber, "tm", &tag, &cookie );
1008                                         break;
1009                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1010                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1011                                         Debug( LDAP_DEBUG_SYNC,
1012                                                 "do_syncrep2: %s %s - %s\n",
1013                                                 si->si_ridtxt,
1014                                                 "LDAP_RES_INTERMEDIATE",
1015                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1016                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1017                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1018                                                 si->si_refreshDelete = 1;
1019                                         } else {
1020                                                 si->si_refreshPresent = 1;
1021                                         }
1022                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1023                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1024                                         {
1025                                                 ber_scanf( ber, "m", &cookie );
1026
1027                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1028                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1029
1030                                                 if ( !BER_BVISNULL( &cookie ) ) {
1031                                                         ch_free( syncCookie.octet_str.bv_val );
1032                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1033                                                 }
1034                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1035                                                 {
1036                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1037                                                 }
1038                                         }
1039                                         /* Defaults to TRUE */
1040                                         if ( ber_peek_tag( ber, &len ) ==
1041                                                 LDAP_TAG_REFRESHDONE )
1042                                         {
1043                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1044                                         } else
1045                                         {
1046                                                 si->si_refreshDone = 1;
1047                                         }
1048                                         ber_scanf( ber, /*"{"*/ "}" );
1049                                         break;
1050                                 case LDAP_TAG_SYNC_ID_SET:
1051                                         Debug( LDAP_DEBUG_SYNC,
1052                                                 "do_syncrep2: %s %s - %s\n",
1053                                                 si->si_ridtxt,
1054                                                 "LDAP_RES_INTERMEDIATE",
1055                                                 "SYNC_ID_SET" );
1056                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1057                                         if ( ber_peek_tag( ber, &len ) ==
1058                                                 LDAP_TAG_SYNC_COOKIE )
1059                                         {
1060                                                 ber_scanf( ber, "m", &cookie );
1061
1062                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1063                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1064
1065                                                 if ( !BER_BVISNULL( &cookie ) ) {
1066                                                         ch_free( syncCookie.octet_str.bv_val );
1067                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1068                                                 }
1069                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1070                                                 {
1071                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1072                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1073                                                 }
1074                                         }
1075                                         if ( ber_peek_tag( ber, &len ) ==
1076                                                 LDAP_TAG_REFRESHDELETES )
1077                                         {
1078                                                 ber_scanf( ber, "b", &refreshDeletes );
1079                                         }
1080                                         ber_scanf( ber, "[W]", &syncUUIDs );
1081                                         ber_scanf( ber, /*"{"*/ "}" );
1082                                         if ( refreshDeletes ) {
1083                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1084                                                         &syncCookie, m );
1085                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1086                                         } else {
1087                                                 int i;
1088                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1089                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1090                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1091                                                 }
1092                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1093                                         }
1094                                         slap_sync_cookie_free( &syncCookie, 0 );
1095                                         break;
1096                                 default:
1097                                         Debug( LDAP_DEBUG_ANY,
1098                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1099                                                 si->si_ridtxt, (long) si_tag, 0 );
1100                                         ldap_memfree( retoid );
1101                                         ber_bvfree( retdata );
1102                                         continue;
1103                                 }
1104
1105                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1106                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1107                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1108                                 }
1109                                 if ( !syncCookie.ctxcsn ) {
1110                                         match = 1;
1111                                 } else if ( !syncCookie_req.ctxcsn ) {
1112                                         match = -1;
1113                                         m = 0;
1114                                 } else {
1115                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1116                                 }
1117
1118                                 if ( match < 0 ) {
1119                                         if ( si->si_refreshPresent == 1 &&
1120                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1121                                                 syncrepl_del_nonpresent( op, si, NULL,
1122                                                         &syncCookie, m );
1123                                         }
1124
1125                                         if ( syncCookie.ctxcsn )
1126                                         {
1127                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1128                                         }
1129                                 }
1130
1131                                 ldap_memfree( retoid );
1132                                 ber_bvfree( retdata );
1133                                 break;
1134
1135                         } else {
1136                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1137                                         "unknown intermediate response (%d)\n",
1138                                         si->si_ridtxt, rc, 0 );
1139                                 ldap_memfree( retoid );
1140                                 ber_bvfree( retdata );
1141                                 break;
1142                         }
1143                         break;
1144
1145                 default:
1146                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1147                                 "unknown message (0x%02lx)\n",
1148                                 si->si_ridtxt,
1149                                 (unsigned long)ldap_msgtype( msg ), 0 );
1150                         break;
1151
1152                 }
1153                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1154                         slap_sync_cookie_free( &syncCookie_req, 0 );
1155                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1156                         slap_sync_cookie_free( &syncCookie, 0 );
1157                 }
1158                 ldap_msgfree( msg );
1159                 msg = NULL;
1160                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1161                         slap_sync_cookie_free( &syncCookie, 0 );
1162                         slap_sync_cookie_free( &syncCookie_req, 0 );
1163                         return SYNC_PAUSED;
1164                 }
1165         }
1166
1167         if ( rc == -1 ) {
1168                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1169                 err = rc;
1170         }
1171
1172 done:
1173         if ( err != LDAP_SUCCESS ) {
1174                 Debug( LDAP_DEBUG_ANY,
1175                         "do_syncrep2: %s (%d) %s\n",
1176                         si->si_ridtxt, err, ldap_err2string( err ) );
1177         }
1178
1179         slap_sync_cookie_free( &syncCookie, 0 );
1180         slap_sync_cookie_free( &syncCookie_req, 0 );
1181
1182         if ( msg ) ldap_msgfree( msg );
1183
1184         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1185                 if ( si->si_conn ) {
1186                         connection_client_stop( si->si_conn );
1187                         si->si_conn = NULL;
1188                 }
1189                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1190                 si->si_ld = NULL;
1191         }
1192
1193         return rc;
1194 }
1195
1196 static void *
1197 do_syncrepl(
1198         void    *ctx,
1199         void    *arg )
1200 {
1201         struct re_s* rtask = arg;
1202         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1203         Connection conn = {0};
1204         OperationBuffer opbuf;
1205         Operation *op;
1206         int rc = LDAP_SUCCESS;
1207         int dostop = 0;
1208         ber_socket_t s;
1209         int i, defer = 1, fail = 0;
1210         Backend *be;
1211
1212         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1213
1214         if ( si == NULL )
1215                 return NULL;
1216
1217         /* There will never be more than one instance active */
1218         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1219
1220         switch( abs( si->si_type ) ) {
1221         case LDAP_SYNC_REFRESH_ONLY:
1222         case LDAP_SYNC_REFRESH_AND_PERSIST:
1223                 break;
1224         default:
1225                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1226                 return NULL;
1227         }
1228
1229         if ( slapd_shutdown ) {
1230                 if ( si->si_ld ) {
1231                         if ( si->si_conn ) {
1232                                 connection_client_stop( si->si_conn );
1233                                 si->si_conn = NULL;
1234                         }
1235                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1236                         si->si_ld = NULL;
1237                 }
1238                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1239                 return NULL;
1240         }
1241
1242         connection_fake_init( &conn, &opbuf, ctx );
1243         op = &opbuf.ob_op;
1244
1245         /* use global malloc for now */
1246         op->o_tmpmemctx = NULL;
1247         op->o_tmpmfuncs = &ch_mfuncs;
1248
1249         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1250         be = si->si_be;
1251
1252         /* Coordinate contextCSN updates with any syncprov overlays
1253          * in use. This may be complicated by the use of the glue
1254          * overlay.
1255          *
1256          * Typically there is a single syncprov mastering the entire
1257          * glued tree. In that case, our contextCSN updates should
1258          * go to the master DB. But if there is no syncprov on the
1259          * master DB, then nothing special is needed here.
1260          *
1261          * Alternatively, there may be individual syncprov overlays
1262          * on each glued branch. In that case, each syncprov only
1263          * knows about changes within its own branch. And so our
1264          * contextCSN updates should only go to the local DB.
1265          */
1266         if ( !si->si_wbe ) {
1267                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1268                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1269                         if ( overlay_is_inst( top_be, "syncprov" ))
1270                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1271                         else
1272                                 si->si_wbe = be;
1273                 } else {
1274                         si->si_wbe = be;
1275                 }
1276         }
1277         if ( !si->si_schemachecking )
1278                 op->o_no_schema_check = 1;
1279
1280         /* Establish session, do search */
1281         if ( !si->si_ld ) {
1282                 si->si_refreshDelete = 0;
1283                 si->si_refreshPresent = 0;
1284
1285                 /* use main DB when retrieving contextCSN */
1286                 op->o_bd = si->si_wbe;
1287                 op->o_dn = op->o_bd->be_rootdn;
1288                 op->o_ndn = op->o_bd->be_rootndn;
1289                 rc = do_syncrep1( op, si );
1290         }
1291
1292 reload:
1293         /* Process results */
1294         if ( rc == LDAP_SUCCESS ) {
1295                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1296
1297                 /* use current DB */
1298                 op->o_bd = be;
1299                 op->o_dn = op->o_bd->be_rootdn;
1300                 op->o_ndn = op->o_bd->be_rootndn;
1301                 rc = do_syncrep2( op, si );
1302                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1303                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1304                         goto reload;
1305                 }
1306
1307                 /* We got deleted while running on cn=config */
1308                 if ( !si->si_ctype ) {
1309                         if ( si->si_conn )
1310                                 dostop = 1;
1311                         rc = -1;
1312                 }
1313
1314                 if ( rc != SYNC_PAUSED ) {
1315                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1316                                 /* If we succeeded, enable the connection for further listening.
1317                                  * If we failed, tear down the connection and reschedule.
1318                                  */
1319                                 if ( rc == LDAP_SUCCESS ) {
1320                                         if ( si->si_conn ) {
1321                                                 connection_client_enable( si->si_conn );
1322                                         } else {
1323                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1324                                         }
1325                                 } else if ( si->si_conn ) {
1326                                         dostop = 1;
1327                                 }
1328                         } else {
1329                                 if ( rc == -2 ) rc = 0;
1330                         }
1331                 }
1332         }
1333
1334         /* At this point, we have 5 cases:
1335          * 1) for any hard failure, give up and remove this task
1336          * 2) for ServerDown, reschedule this task to run later
1337          * 3) for threadpool pause, reschedule to run immediately
1338          * 4) for Refresh and Success, reschedule to run
1339          * 5) for Persist and Success, reschedule to defer
1340          */
1341         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1342
1343         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1344                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1345         }
1346
1347         if ( dostop ) {
1348                 connection_client_stop( si->si_conn );
1349                 si->si_conn = NULL;
1350         }
1351
1352         if ( rc == SYNC_PAUSED ) {
1353                 rtask->interval.tv_sec = 0;
1354                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1355                 rtask->interval.tv_sec = si->si_interval;
1356                 rc = 0;
1357         } else if ( rc == LDAP_SUCCESS ) {
1358                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1359                         defer = 0;
1360                 }
1361                 rtask->interval.tv_sec = si->si_interval;
1362                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1363                 if ( si->si_retrynum ) {
1364                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1365                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1366                         }
1367                         si->si_retrynum[i] = RETRYNUM_TAIL;
1368                 }
1369         } else {
1370                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1371                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1372                                 break;
1373                 }
1374
1375                 if ( !si->si_ctype
1376                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1377                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1378                         fail = RETRYNUM_TAIL;
1379                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1380                         if ( si->si_retrynum[i] > 0 )
1381                                 si->si_retrynum[i]--;
1382                         fail = si->si_retrynum[i];
1383                         rtask->interval.tv_sec = si->si_retryinterval[i];
1384                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1385                         slap_wake_listener();
1386                 }
1387         }
1388
1389         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1390         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1391
1392         if ( rc ) {
1393                 if ( fail == RETRYNUM_TAIL ) {
1394                         Debug( LDAP_DEBUG_ANY,
1395                                 "do_syncrepl: %s quitting\n",
1396                                 si->si_ridtxt, 0, 0 );
1397                 } else if ( fail > 0 ) {
1398                         Debug( LDAP_DEBUG_ANY,
1399                                 "do_syncrepl: %s retrying (%d retries left)\n",
1400                                 si->si_ridtxt, fail, 0 );
1401                 } else {
1402                         Debug( LDAP_DEBUG_ANY,
1403                                 "do_syncrepl: %s retrying\n",
1404                                 si->si_ridtxt, 0, 0 );
1405                 }
1406         }
1407
1408         /* Do final delete cleanup */
1409         if ( !si->si_ctype ) {
1410                 cookie_state *cs = NULL;
1411                 syncinfo_t **sip;
1412
1413                 cs = be->be_syncinfo->si_cookieState;
1414                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1415                 *sip = si->si_next;
1416                 syncinfo_free( si, 0 );
1417                 if ( !be->be_syncinfo ) {
1418                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1419                         if ( cs ) {
1420                                 ch_free( cs->cs_sids );
1421                                 ber_bvarray_free( cs->cs_vals );
1422                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1423                                 ch_free( cs );
1424                         }
1425                 }
1426         }
1427         return NULL;
1428 }
1429
1430 static slap_verbmasks modops[] = {
1431         { BER_BVC("add"), LDAP_REQ_ADD },
1432         { BER_BVC("delete"), LDAP_REQ_DELETE },
1433         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1434         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1435         { BER_BVNULL, 0 }
1436 };
1437
1438 static Modifications *
1439 syncrepl_accesslog_mods(
1440         syncinfo_t *si,
1441         struct berval *vals
1442 )
1443 {
1444         char *colon;
1445         const char *text;
1446         AttributeDescription *ad;
1447         struct berval bv, bv2;
1448         short op;
1449         Modifications *mod = NULL, *modlist = NULL, **modtail;
1450         int i;
1451
1452         modtail = &modlist;
1453
1454         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1455                 ad = NULL;
1456                 bv = vals[i];
1457
1458                 colon = ber_bvchr( &bv, ':' );
1459                 if ( !colon ) {
1460                         /* Invalid */
1461                         continue;
1462                 }
1463
1464                 bv.bv_len = colon - bv.bv_val;
1465                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1466                         /* Invalid */
1467                         continue;
1468                 }
1469
1470                 /* Ignore dynamically generated attrs */
1471                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1472                         continue;
1473                 }
1474
1475                 /* Ignore excluded attrs */
1476                 if ( ldap_charray_inlist( si->si_exattrs,
1477                         ad->ad_type->sat_cname.bv_val ) )
1478                 {
1479                         continue;
1480                 }
1481
1482                 switch(colon[1]) {
1483                 case '+':       op = LDAP_MOD_ADD; break;
1484                 case '-':       op = LDAP_MOD_DELETE; break;
1485                 case '=':       op = LDAP_MOD_REPLACE; break;
1486                 case '#':       op = LDAP_MOD_INCREMENT; break;
1487                 default:        continue;
1488                 }
1489
1490                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1491                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1492                         mod->sml_flags = 0;
1493                         mod->sml_op = op;
1494                         mod->sml_next = NULL;
1495                         mod->sml_desc = ad;
1496                         mod->sml_type = ad->ad_cname;
1497                         mod->sml_values = NULL;
1498                         mod->sml_nvalues = NULL;
1499                         mod->sml_numvals = 0;
1500
1501                         *modtail = mod;
1502                         modtail = &mod->sml_next;
1503                 }
1504                 if ( colon[2] == ' ' ) {
1505                         bv.bv_val = colon + 3;
1506                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1507                         ber_dupbv( &bv2, &bv );
1508                         ber_bvarray_add( &mod->sml_values, &bv2 );
1509                         mod->sml_numvals++;
1510                 }
1511         }
1512         return modlist;
1513 }
1514
1515 static Modifications *
1516 syncrepl_changelog_mods(
1517         syncinfo_t *si,
1518         struct berval *vals
1519 )
1520 {
1521         return NULL;    /* FIXME */
1522 }
1523
1524 static int
1525 syncrepl_message_to_op(
1526         syncinfo_t      *si,
1527         Operation       *op,
1528         LDAPMessage     *msg
1529 )
1530 {
1531         BerElement      *ber = NULL;
1532         Modifications   *modlist = NULL;
1533         logschema *ls;
1534         SlapReply rs = { REP_RESULT };
1535         slap_callback cb = { NULL, null_callback, NULL, NULL };
1536
1537         const char      *text;
1538         char txtbuf[SLAP_TEXT_BUFLEN];
1539         size_t textlen = sizeof txtbuf;
1540
1541         struct berval   bdn, dn = BER_BVNULL, ndn;
1542         struct berval   bv, *bvals = NULL;
1543         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1544                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1545                 psup = BER_BVNULL, nsup = BER_BVNULL;
1546         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1547
1548         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1549                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1550                         "Message type should be entry (%d)",
1551                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1552                 return -1;
1553         }
1554
1555         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1556                 ls = &accesslog_sc;
1557         else
1558                 ls = &changelog_sc;
1559
1560         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1561
1562         if ( rc != LDAP_SUCCESS ) {
1563                 Debug( LDAP_DEBUG_ANY,
1564                         "syncrepl_message_to_op: %s dn get failed (%d)",
1565                         si->si_ridtxt, rc, 0 );
1566                 return rc;
1567         }
1568
1569         op->o_tag = LBER_DEFAULT;
1570         op->o_bd = si->si_wbe;
1571
1572         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1573                 == LDAP_SUCCESS ) {
1574                 if ( bv.bv_val == NULL )
1575                         break;
1576
1577                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1578                         bdn = bvals[0];
1579                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1580                         ber_dupbv( &op->o_req_dn, &dn );
1581                         ber_dupbv( &op->o_req_ndn, &ndn );
1582                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1583                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1584                         freeReqDn = 1;
1585                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1586                         int i = verb_to_mask( bvals[0].bv_val, modops );
1587                         if ( i < 0 ) {
1588                                 Debug( LDAP_DEBUG_ANY,
1589                                         "syncrepl_message_to_op: %s unknown op %s",
1590                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1591                                 ch_free( bvals );
1592                                 rc = -1;
1593                                 goto done;
1594                         }
1595                         op->o_tag = modops[i].mask;
1596                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1597                         /* Parse attribute into modlist */
1598                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1599                                 modlist = syncrepl_accesslog_mods( si, bvals );
1600                         } else {
1601                                 modlist = syncrepl_changelog_mods( si, bvals );
1602                         }
1603                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1604                         rdn = bvals[0];
1605                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1606                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1607                                 deleteOldRdn = 1;
1608                         }
1609                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1610                         sup = bvals[0];
1611                 } else if ( !ber_bvstrcasecmp( &bv,
1612                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1613                 {
1614                         slap_queue_csn( op, bvals );
1615                 }
1616                 ch_free( bvals );
1617         }
1618
1619         /* If we didn't get a mod type or a target DN, bail out */
1620         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1621                 rc = -1;
1622                 goto done;
1623         }
1624
1625         op->o_callback = &cb;
1626         slap_op_time( &op->o_time, &op->o_tincr );
1627
1628         switch( op->o_tag ) {
1629         case LDAP_REQ_ADD:
1630         case LDAP_REQ_MODIFY:
1631                 /* If we didn't get required data, bail */
1632                 if ( !modlist ) goto done;
1633
1634                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1635
1636                 if ( rc != LDAP_SUCCESS ) {
1637                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1638                                 "mods check (%s)\n",
1639                                 si->si_ridtxt, text, 0 );
1640                         goto done;
1641                 }
1642
1643                 if ( op->o_tag == LDAP_REQ_ADD ) {
1644                         Entry *e = entry_alloc();
1645                         op->ora_e = e;
1646                         op->ora_e->e_name = op->o_req_dn;
1647                         op->ora_e->e_nname = op->o_req_ndn;
1648                         freeReqDn = 0;
1649                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1650                         if( rc != LDAP_SUCCESS ) {
1651                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1652                                 "mods2entry (%s)\n",
1653                                         si->si_ridtxt, text, 0 );
1654                         } else {
1655                                 rc = op->o_bd->be_add( op, &rs );
1656                                 Debug( LDAP_DEBUG_SYNC,
1657                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1658                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1659                         }
1660                         if ( e == op->ora_e )
1661                                 be_entry_release_w( op, op->ora_e );
1662                 } else {
1663                         op->orm_modlist = modlist;
1664                         op->o_bd = si->si_wbe;
1665                         rc = op->o_bd->be_modify( op, &rs );
1666                         modlist = op->orm_modlist;
1667                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1668                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1669                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1670                         op->o_bd = si->si_be;
1671                 }
1672                 break;
1673         case LDAP_REQ_MODRDN:
1674                 if ( BER_BVISNULL( &rdn ) ) goto done;
1675
1676                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1677                         goto done;
1678                 }
1679                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1680                         goto done;
1681                 }
1682                 if ( !BER_BVISNULL( &sup ) ) {
1683                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1684                                 goto done;
1685                         }
1686                         op->orr_newSup = &psup;
1687                         op->orr_nnewSup = &nsup;
1688                 } else {
1689                         op->orr_newSup = NULL;
1690                         op->orr_nnewSup = NULL;
1691                 }
1692                 op->orr_newrdn = prdn;
1693                 op->orr_nnewrdn = nrdn;
1694                 op->orr_deleteoldrdn = deleteOldRdn;
1695                 op->orr_modlist = NULL;
1696                 if ( slap_modrdn2mods( op, &rs ) ) {
1697                         goto done;
1698                 }
1699
1700                 /* Append modlist for operational attrs */
1701                 {
1702                         Modifications *m;
1703
1704                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1705                                 ;
1706                         m->sml_next = modlist;
1707                         modlist = NULL;
1708                 }
1709                 rc = op->o_bd->be_modrdn( op, &rs );
1710                 slap_mods_free( op->orr_modlist, 1 );
1711                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1712                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1713                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1714                 break;
1715         case LDAP_REQ_DELETE:
1716                 rc = op->o_bd->be_delete( op, &rs );
1717                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1718                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1719                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1720                 break;
1721         }
1722 done:
1723         slap_graduate_commit_csn( op );
1724         op->o_bd = si->si_be;
1725         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1726         BER_BVZERO( &op->o_csn );
1727         if ( modlist ) {
1728                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1729         }
1730         if ( !BER_BVISNULL( &rdn ) ) {
1731                 if ( !BER_BVISNULL( &nsup ) ) {
1732                         ch_free( nsup.bv_val );
1733                 }
1734                 if ( !BER_BVISNULL( &psup ) ) {
1735                         ch_free( psup.bv_val );
1736                 }
1737                 if ( !BER_BVISNULL( &nrdn ) ) {
1738                         ch_free( nrdn.bv_val );
1739                 }
1740                 if ( !BER_BVISNULL( &prdn ) ) {
1741                         ch_free( prdn.bv_val );
1742                 }
1743         }
1744         if ( freeReqDn ) {
1745                 ch_free( op->o_req_ndn.bv_val );
1746                 ch_free( op->o_req_dn.bv_val );
1747         }
1748         ber_free( ber, 0 );
1749         return rc;
1750 }
1751
1752 static int
1753 syncrepl_message_to_entry(
1754         syncinfo_t      *si,
1755         Operation       *op,
1756         LDAPMessage     *msg,
1757         Modifications   **modlist,
1758         Entry                   **entry,
1759         int             syncstate
1760 )
1761 {
1762         Entry           *e = NULL;
1763         BerElement      *ber = NULL;
1764         Modifications   tmp;
1765         Modifications   *mod;
1766         Modifications   **modtail = modlist;
1767
1768         const char      *text;
1769         char txtbuf[SLAP_TEXT_BUFLEN];
1770         size_t textlen = sizeof txtbuf;
1771
1772         struct berval   bdn = BER_BVNULL, dn, ndn;
1773         int             rc, is_ctx;
1774
1775         *modlist = NULL;
1776
1777         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1778                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1779                         "Message type should be entry (%d)",
1780                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1781                 return -1;
1782         }
1783
1784         op->o_tag = LDAP_REQ_ADD;
1785
1786         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1787         if ( rc != LDAP_SUCCESS ) {
1788                 Debug( LDAP_DEBUG_ANY,
1789                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1790                         si->si_ridtxt, rc, 0 );
1791                 return rc;
1792         }
1793
1794         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1795                 /* NOTE: this could be done even before decoding the DN,
1796                  * although encoding errors wouldn't be detected */
1797                 rc = LDAP_SUCCESS;
1798                 goto done;
1799         }
1800
1801         if ( entry == NULL ) {
1802                 return -1;
1803         }
1804
1805         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1806         ber_dupbv( &op->o_req_dn, &dn );
1807         ber_dupbv( &op->o_req_ndn, &ndn );
1808         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1809         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1810
1811         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1812
1813         e = entry_alloc();
1814         e->e_name = op->o_req_dn;
1815         e->e_nname = op->o_req_ndn;
1816
1817         while ( ber_remaining( ber ) ) {
1818                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1819                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1820                 {
1821                         break;
1822                 }
1823
1824                 /* Drop all updates to the contextCSN of the context entry
1825                  * (ITS#4622, etc.)
1826                  */
1827                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1828                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1829                         ber_bvarray_free( tmp.sml_values );
1830                         continue;
1831                 }
1832
1833                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1834
1835                 mod->sml_op = LDAP_MOD_REPLACE;
1836                 mod->sml_flags = 0;
1837                 mod->sml_next = NULL;
1838                 mod->sml_desc = NULL;
1839                 mod->sml_type = tmp.sml_type;
1840                 mod->sml_values = tmp.sml_values;
1841                 mod->sml_nvalues = NULL;
1842                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1843
1844                 *modtail = mod;
1845                 modtail = &mod->sml_next;
1846         }
1847
1848         if ( *modlist == NULL ) {
1849                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1850                         si->si_ridtxt, 0, 0 );
1851                 rc = -1;
1852                 goto done;
1853         }
1854
1855         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1856
1857         if ( rc != LDAP_SUCCESS ) {
1858                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1859                         si->si_ridtxt, text, 0 );
1860                 goto done;
1861         }
1862
1863         /* Strip out dynamically generated attrs */
1864         for ( modtail = modlist; *modtail ; ) {
1865                 mod = *modtail;
1866                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1867                         *modtail = mod->sml_next;
1868                         slap_mod_free( &mod->sml_mod, 0 );
1869                         ch_free( mod );
1870                 } else {
1871                         modtail = &mod->sml_next;
1872                 }
1873         }
1874
1875         /* Strip out attrs in exattrs list */
1876         for ( modtail = modlist; *modtail ; ) {
1877                 mod = *modtail;
1878                 if ( ldap_charray_inlist( si->si_exattrs,
1879                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1880                 {
1881                         *modtail = mod->sml_next;
1882                         slap_mod_free( &mod->sml_mod, 0 );
1883                         ch_free( mod );
1884                 } else {
1885                         modtail = &mod->sml_next;
1886                 }
1887         }
1888
1889         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1890         if( rc != LDAP_SUCCESS ) {
1891                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1892                         si->si_ridtxt, text, 0 );
1893         }
1894
1895 done:
1896         ber_free( ber, 0 );
1897         if ( rc != LDAP_SUCCESS ) {
1898                 if ( e ) {
1899                         entry_free( e );
1900                         e = NULL;
1901                 }
1902         }
1903         if ( entry )
1904                 *entry = e;
1905
1906         return rc;
1907 }
1908
1909 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1910
1911 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1912  * entry if a previous refresh was interrupted before sending us a new
1913  * context state. We try to compare the new entry to the existing entry
1914  * and ignore the new entry if they are the same.
1915  *
1916  * Also, we may get an update where the entryDN has changed, due to
1917  * a ModDn on the provider. We detect this as well, so we can issue
1918  * the corresponding operation locally.
1919  *
1920  * In the case of a modify, we get a list of all the attributes
1921  * in the original entry. Rather than deleting the entry and re-adding it,
1922  * we issue a Modify request that deletes all the attributes and adds all
1923  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1924  * entry.
1925  *
1926  * We otherwise distinguish ModDN from Modify; in the case of
1927  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1928  * operational attributes from the entry, and do a regular ModDN.
1929  */
1930 typedef struct dninfo {
1931         Entry *new_entry;
1932         struct berval dn;
1933         struct berval ndn;
1934         int renamed;    /* Was an existing entry renamed? */
1935         int delOldRDN;  /* Was old RDN deleted? */
1936         Modifications **modlist;        /* the modlist we received */
1937         Modifications *mods;    /* the modlist we compared */
1938         AttributeDescription *oldDesc;  /* for renames */
1939         AttributeDescription *newDesc;  /* for renames */
1940 } dninfo;
1941
1942 /* return 1 if inserted, 0 otherwise */
1943 static int
1944 avl_presentlist_insert(
1945         syncinfo_t* si,
1946         struct berval *syncUUID )
1947 {
1948         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1949
1950         syncuuid_bv->bv_len = syncUUID->bv_len;
1951         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1952         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1953         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1954
1955         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1956                 syncuuid_cmp, avl_dup_error ) )
1957         {
1958                 ch_free( syncuuid_bv );
1959                 return 0;
1960         }
1961
1962         return 1;
1963 }
1964
1965 static int
1966 syncrepl_entry(
1967         syncinfo_t* si,
1968         Operation *op,
1969         Entry* entry,
1970         Modifications** modlist,
1971         int syncstate,
1972         struct berval* syncUUID,
1973         struct berval* syncCSN )
1974 {
1975         Backend *be = op->o_bd;
1976         slap_callback   cb = { NULL, NULL, NULL, NULL };
1977         int syncuuid_inserted = 0;
1978         struct berval   syncUUID_strrep = BER_BVNULL;
1979
1980         SlapReply       rs_search = {REP_RESULT};
1981         SlapReply       rs_delete = {REP_RESULT};
1982         SlapReply       rs_add = {REP_RESULT};
1983         SlapReply       rs_modify = {REP_RESULT};
1984         Filter f = {0};
1985         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1986         int rc = LDAP_SUCCESS;
1987
1988         struct berval pdn = BER_BVNULL;
1989         dninfo dni = {0};
1990         int     retry = 1;
1991         int     freecsn = 1;
1992
1993         Debug( LDAP_DEBUG_SYNC,
1994                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1995                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1996
1997         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1998                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1999                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2000                 }
2001         }
2002
2003         if ( syncstate == LDAP_SYNC_PRESENT ) {
2004                 return 0;
2005         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2006                 if ( entry == NULL ) {
2007                         return 0;
2008                 }
2009         }
2010
2011         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2012         if ( syncstate != LDAP_SYNC_DELETE ) {
2013                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2014
2015                 if ( a == NULL ) {
2016                         /* add if missing */
2017                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2018                                 &syncUUID_strrep, syncUUID );
2019
2020                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2021                         /* replace only if necessary */
2022                         if ( a->a_nvals != a->a_vals ) {
2023                                 ber_memfree( a->a_nvals[0].bv_val );
2024                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2025                         }
2026                         ber_memfree( a->a_vals[0].bv_val );
2027                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2028                 }
2029         }
2030
2031         f.f_choice = LDAP_FILTER_EQUALITY;
2032         f.f_ava = &ava;
2033         ava.aa_desc = slap_schema.si_ad_entryUUID;
2034         ava.aa_value = *syncUUID;
2035
2036         if ( syncuuid_inserted ) {
2037                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2038                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2039         }
2040         op->ors_filter = &f;
2041
2042         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2043         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2044                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2045         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2046         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2047                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2048         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2049         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2050
2051         op->o_tag = LDAP_REQ_SEARCH;
2052         op->ors_scope = LDAP_SCOPE_SUBTREE;
2053         op->ors_deref = LDAP_DEREF_NEVER;
2054
2055         /* get the entry for this UUID */
2056         op->o_req_dn = si->si_base;
2057         op->o_req_ndn = si->si_base;
2058
2059         op->o_time = slap_get_time();
2060         op->ors_tlimit = SLAP_NO_LIMIT;
2061         op->ors_slimit = 1;
2062
2063         op->ors_attrs = slap_anlist_all_attributes;
2064         op->ors_attrsonly = 0;
2065
2066         /* set callback function */
2067         op->o_callback = &cb;
2068         cb.sc_response = dn_callback;
2069         cb.sc_private = &dni;
2070         dni.new_entry = entry;
2071         dni.modlist = modlist;
2072
2073         if ( limits_check( op, &rs_search ) == 0 ) {
2074                 rc = be->be_search( op, &rs_search );
2075                 Debug( LDAP_DEBUG_SYNC,
2076                                 "syncrepl_entry: %s be_search (%d)\n",
2077                                 si->si_ridtxt, rc, 0 );
2078         }
2079
2080         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2081                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2082         }
2083
2084         cb.sc_response = null_callback;
2085         cb.sc_private = si;
2086
2087         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2088                 Debug( LDAP_DEBUG_SYNC,
2089                                 "syncrepl_entry: %s %s\n",
2090                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2091         } else {
2092                 Debug( LDAP_DEBUG_SYNC,
2093                                 "syncrepl_entry: %s %s\n",
2094                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2095         }
2096
2097         assert( BER_BVISNULL( &op->o_csn ) );
2098         if ( syncCSN ) {
2099                 slap_queue_csn( op, syncCSN );
2100         }
2101
2102         slap_op_time( &op->o_time, &op->o_tincr );
2103         switch ( syncstate ) {
2104         case LDAP_SYNC_ADD:
2105         case LDAP_SYNC_MODIFY:
2106                 if ( BER_BVISNULL( &op->o_csn ))
2107                 {
2108
2109                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2110                         if ( a ) {
2111                                 /* FIXME: op->o_csn is assumed to be
2112                                  * on the thread's slab; this needs
2113                                  * to be cleared ASAP.
2114                                  * What happens if already present?
2115                                  */
2116                                 assert( BER_BVISNULL( &op->o_csn ) );
2117                                 op->o_csn = a->a_vals[0];
2118                                 freecsn = 0;
2119                         }
2120                 }
2121 retry_add:;
2122                 if ( BER_BVISNULL( &dni.dn ) ) {
2123
2124                         op->o_req_dn = entry->e_name;
2125                         op->o_req_ndn = entry->e_nname;
2126                         op->o_tag = LDAP_REQ_ADD;
2127                         op->ora_e = entry;
2128                         op->o_bd = si->si_wbe;
2129
2130                         rc = op->o_bd->be_add( op, &rs_add );
2131                         Debug( LDAP_DEBUG_SYNC,
2132                                         "syncrepl_entry: %s be_add (%d)\n",
2133                                         si->si_ridtxt, rc, 0 );
2134                         switch ( rs_add.sr_err ) {
2135                         case LDAP_SUCCESS:
2136                                 if ( op->ora_e == entry ) {
2137                                         be_entry_release_w( op, entry );
2138                                 }
2139                                 entry = NULL;
2140                                 break;
2141
2142                         case LDAP_REFERRAL:
2143                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2144                          * only if the suffix entry is not present */
2145                         case LDAP_NO_SUCH_OBJECT:
2146                                 rc = syncrepl_add_glue( op, entry );
2147                                 entry = NULL;
2148                                 break;
2149
2150                         /* if an entry was added via syncrepl_add_glue(),
2151                          * it likely has no entryUUID, so the previous
2152                          * be_search() doesn't find it.  In this case,
2153                          * give syncrepl a chance to modify it. Also
2154                          * allow for entries that were recreated with the
2155                          * same DN but a different entryUUID.
2156                          */
2157                         case LDAP_ALREADY_EXISTS:
2158                                 if ( retry ) {
2159                                         Operation       op2 = *op;
2160                                         SlapReply       rs2 = { 0 };
2161                                         slap_callback   cb2 = { 0 };
2162
2163                                         op2.o_bd = be;
2164                                         op2.o_tag = LDAP_REQ_SEARCH;
2165                                         op2.o_req_dn = entry->e_name;
2166                                         op2.o_req_ndn = entry->e_nname;
2167                                         op2.ors_scope = LDAP_SCOPE_BASE;
2168                                         op2.ors_deref = LDAP_DEREF_NEVER;
2169                                         op2.ors_attrs = slap_anlist_all_attributes;
2170                                         op2.ors_attrsonly = 0;
2171                                         op2.ors_limit = NULL;
2172                                         op2.ors_slimit = 1;
2173                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2174
2175                                         f.f_choice = LDAP_FILTER_PRESENT;
2176                                         f.f_desc = slap_schema.si_ad_objectClass;
2177                                         op2.ors_filter = &f;
2178                                         op2.ors_filterstr = generic_filterstr;
2179
2180                                         op2.o_callback = &cb2;
2181                                         cb2.sc_response = dn_callback;
2182                                         cb2.sc_private = &dni;
2183
2184                                         rc = be->be_search( &op2, &rs2 );
2185                                         if ( rc ) goto done;
2186
2187                                         retry = 0;
2188                                         slap_op_time( &op->o_time, &op->o_tincr );
2189                                         goto retry_add;
2190                                 }
2191                                 /* FALLTHRU */
2192
2193                         default:
2194                                 Debug( LDAP_DEBUG_ANY,
2195                                         "syncrepl_entry: %s be_add failed (%d)\n",
2196                                         si->si_ridtxt, rs_add.sr_err, 0 );
2197                                 break;
2198                         }
2199                         op->o_bd = be;
2200                         goto done;
2201                 }
2202                 /* FALLTHRU */
2203                 op->o_req_dn = dni.dn;
2204                 op->o_req_ndn = dni.ndn;
2205                 if ( dni.renamed ) {
2206                         struct berval noldp, newp, nnewp;
2207                         Modifications *mod, **modtail, **ml;
2208
2209                         op->o_tag = LDAP_REQ_MODRDN;
2210                         dnRdn( &entry->e_name, &op->orr_newrdn );
2211                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2212
2213                         dnParent( &dni.ndn, &noldp );
2214                         dnParent( &entry->e_nname, &nnewp );
2215                         if ( !dn_match( &noldp, &nnewp ) ) {
2216                                 dnParent( &entry->e_name, &newp );
2217                                 op->orr_newSup = &newp;
2218                                 op->orr_nnewSup = &nnewp;
2219                         } else {
2220                                 op->orr_newSup = NULL;
2221                                 op->orr_nnewSup = NULL;
2222                         }
2223                         op->orr_deleteoldrdn = dni.delOldRDN;
2224                         op->orr_modlist = NULL;
2225
2226                         /* Move any RDN mods over to this op */
2227                         modtail = &op->orr_modlist;
2228                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2229                                 if ( (*ml)->sml_desc == dni.oldDesc ) {
2230                                         mod = *ml;
2231                                         *ml = mod->sml_next;
2232                                         mod->sml_next = NULL;
2233                                         *modtail = mod;
2234                                         modtail = &mod->sml_next;
2235                                         break;
2236                                 }
2237                         }
2238                         if ( dni.oldDesc != dni.newDesc ) {
2239                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2240                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2241                                                 mod = *ml;
2242                                                 *ml = mod->sml_next;
2243                                                 mod->sml_next = NULL;
2244                                                 *modtail = mod;
2245                                                 modtail = &mod->sml_next;
2246                                                 break;
2247                                         }
2248                                 }
2249                         }
2250
2251                         /* RDNs must be NUL-terminated for back-ldap */
2252                         noldp = op->orr_newrdn;
2253                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2254                         noldp = op->orr_nnewrdn;
2255                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2256
2257                         /* Setup opattrs too */
2258                         {
2259                                 static AttributeDescription *nullattr = NULL;
2260                                 static AttributeDescription **const opattrs[] = {
2261                                         &slap_schema.si_ad_entryCSN,
2262                                         &slap_schema.si_ad_modifiersName,
2263                                         &slap_schema.si_ad_modifyTimestamp,
2264                                         &nullattr
2265                                 };
2266                                 AttributeDescription *opattr;
2267                                 int i;
2268
2269                                 /* pull mod off incoming modlist, append to orr_modlist */
2270                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2271                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2272                                         {
2273                                                 if ( (*ml)->sml_desc == opattr ) {
2274                                                         mod = *ml;
2275                                                         *ml = mod->sml_next;
2276                                                         mod->sml_next = NULL;
2277                                                         *modtail = mod;
2278                                                         modtail = &mod->sml_next;
2279                                                         break;
2280                                                 }
2281                                         }
2282                                 }
2283                         }
2284                         op->o_bd = si->si_wbe;
2285                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2286                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2287                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2288
2289                         slap_mods_free( op->orr_modlist, 1 );
2290                         Debug( LDAP_DEBUG_SYNC,
2291                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2292                                         si->si_ridtxt, rc, 0 );
2293                         op->o_bd = be;
2294                         /* Renamed entries may still have other mods so just fallthru */
2295                         op->o_req_dn = entry->e_name;
2296                         op->o_req_ndn = entry->e_nname;
2297                 }
2298                 if ( dni.mods ) {
2299                         op->o_tag = LDAP_REQ_MODIFY;
2300                         op->orm_modlist = dni.mods;
2301                         op->orm_no_opattrs = 1;
2302                         op->o_bd = si->si_wbe;
2303
2304                         rc = op->o_bd->be_modify( op, &rs_modify );
2305                         slap_mods_free( op->orm_modlist, 1 );
2306                         op->orm_no_opattrs = 0;
2307                         Debug( LDAP_DEBUG_SYNC,
2308                                         "syncrepl_entry: %s be_modify (%d)\n",
2309                                         si->si_ridtxt, rc, 0 );
2310                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2311                                 Debug( LDAP_DEBUG_ANY,
2312                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2313                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2314                         }
2315                         op->o_bd = be;
2316                 } else if ( !dni.renamed ) {
2317                         Debug( LDAP_DEBUG_SYNC,
2318                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2319                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2320                 }
2321                 goto done;
2322         case LDAP_SYNC_DELETE :
2323                 if ( !BER_BVISNULL( &dni.dn ) ) {
2324                         op->o_req_dn = dni.dn;
2325                         op->o_req_ndn = dni.ndn;
2326                         op->o_tag = LDAP_REQ_DELETE;
2327                         op->o_bd = si->si_wbe;
2328                         rc = op->o_bd->be_delete( op, &rs_delete );
2329                         Debug( LDAP_DEBUG_SYNC,
2330                                         "syncrepl_entry: %s be_delete (%d)\n",
2331                                         si->si_ridtxt, rc, 0 );
2332
2333                         while ( rs_delete.sr_err == LDAP_SUCCESS
2334                                 && op->o_delete_glue_parent ) {
2335                                 op->o_delete_glue_parent = 0;
2336                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2337                                         slap_callback cb = { NULL };
2338                                         cb.sc_response = slap_null_cb;
2339                                         dnParent( &op->o_req_ndn, &pdn );
2340                                         op->o_req_dn = pdn;
2341                                         op->o_req_ndn = pdn;
2342                                         op->o_callback = &cb;
2343                                         op->o_bd->be_delete( op, &rs_delete );
2344                                 } else {
2345                                         break;
2346                                 }
2347                         }
2348                         op->o_bd = be;
2349                 }
2350                 goto done;
2351
2352         default :
2353                 Debug( LDAP_DEBUG_ANY,
2354                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2355                 goto done;
2356         }
2357
2358 done:
2359         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2360                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2361                 BER_BVZERO( &syncUUID_strrep );
2362         }
2363         if ( !BER_BVISNULL( &dni.ndn ) ) {
2364                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2365         }
2366         if ( !BER_BVISNULL( &dni.dn ) ) {
2367                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2368         }
2369         if ( entry ) {
2370                 entry_free( entry );
2371         }
2372         if ( syncCSN ) {
2373                 slap_graduate_commit_csn( op );
2374         }
2375         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2376                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2377         }
2378         BER_BVZERO( &op->o_csn );
2379         return rc;
2380 }
2381
2382 static struct berval gcbva[] = {
2383         BER_BVC("top"),
2384         BER_BVC("glue"),
2385         BER_BVNULL
2386 };
2387
2388 #define NP_DELETE_ONE   2
2389
2390 static void
2391 syncrepl_del_nonpresent(
2392         Operation *op,
2393         syncinfo_t *si,
2394         BerVarray uuids,
2395         struct sync_cookie *sc,
2396         int m )
2397 {
2398         Backend* be = op->o_bd;
2399         slap_callback   cb = { NULL };
2400         SlapReply       rs_search = {REP_RESULT};
2401         SlapReply       rs_delete = {REP_RESULT};
2402         SlapReply       rs_modify = {REP_RESULT};
2403         struct nonpresent_entry *np_list, *np_prev;
2404         int rc;
2405         AttributeName   an[2];
2406
2407         struct berval pdn = BER_BVNULL;
2408         struct berval csn;
2409
2410         op->o_req_dn = si->si_base;
2411         op->o_req_ndn = si->si_base;
2412
2413         cb.sc_response = nonpresent_callback;
2414         cb.sc_private = si;
2415
2416         op->o_callback = &cb;
2417         op->o_tag = LDAP_REQ_SEARCH;
2418         op->ors_scope = si->si_scope;
2419         op->ors_deref = LDAP_DEREF_NEVER;
2420         op->o_time = slap_get_time();
2421         op->ors_tlimit = SLAP_NO_LIMIT;
2422
2423
2424         if ( uuids ) {
2425                 Filter uf;
2426                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2427                 int i;
2428
2429                 op->ors_attrsonly = 1;
2430                 op->ors_attrs = slap_anlist_no_attrs;
2431                 op->ors_limit = NULL;
2432                 op->ors_filter = &uf;
2433
2434                 uf.f_ava = &eq;
2435                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2436                 uf.f_next = NULL;
2437                 uf.f_choice = LDAP_FILTER_EQUALITY;
2438                 si->si_refreshDelete |= NP_DELETE_ONE;
2439
2440                 for (i=0; uuids[i].bv_val; i++) {
2441                         op->ors_slimit = 1;
2442                         uf.f_av_value = uuids[i];
2443                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2444                         rc = be->be_search( op, &rs_search );
2445                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2446                 }
2447                 si->si_refreshDelete ^= NP_DELETE_ONE;
2448         } else {
2449                 Filter *cf, *of;
2450
2451                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2452                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2453                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2454                 op->ors_attrs = an;
2455                 op->ors_slimit = SLAP_NO_LIMIT;
2456                 op->ors_attrsonly = 0;
2457                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2458                 /* In multimaster, updates can continue to arrive while
2459                  * we're searching. Limit the search result to entries
2460                  * older than all of our cookie CSNs.
2461                  */
2462                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2463                         Filter *f;
2464                         int i;
2465                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2466                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2467                         f = cf;
2468                         f->f_choice = LDAP_FILTER_AND;
2469                         f->f_next = NULL;
2470                         f->f_and = f+1;
2471                         of = f->f_and;
2472                         for ( i=0; i<sc->numcsns; i++ ) {
2473                                 f = of;
2474                                 f->f_choice = LDAP_FILTER_LE;
2475                                 f->f_ava = (AttributeAssertion *)(f+1);
2476                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2477                                 f->f_av_value = sc->ctxcsn[i];
2478                                 f->f_next = (Filter *)(f->f_ava+1);
2479                                 of = f->f_next;
2480                         }
2481                         f->f_next = op->ors_filter;
2482                         of = op->ors_filter;
2483                         op->ors_filter = cf;
2484                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2485                 } else {
2486                         cf = NULL;
2487                         op->ors_filterstr = si->si_filterstr;
2488                 }
2489                 op->o_nocaching = 1;
2490
2491                 if ( limits_check( op, &rs_search ) == 0 ) {
2492                         rc = be->be_search( op, &rs_search );
2493                 }
2494                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2495                         op->o_tmpfree( cf, op->o_tmpmemctx );
2496                         op->ors_filter = of;
2497                 }
2498                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2499
2500         }
2501
2502         op->o_nocaching = 0;
2503
2504         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2505
2506                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2507                         csn = sc->ctxcsn[m];
2508                 } else {
2509                         csn = si->si_syncCookie.ctxcsn[0];
2510                 }
2511
2512                 op->o_bd = si->si_wbe;
2513                 slap_queue_csn( op, &csn );
2514
2515                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2516                 while ( np_list != NULL ) {
2517                         LDAP_LIST_REMOVE( np_list, npe_link );
2518                         np_prev = np_list;
2519                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2520                         op->o_tag = LDAP_REQ_DELETE;
2521                         op->o_callback = &cb;
2522                         cb.sc_response = null_callback;
2523                         cb.sc_private = si;
2524                         op->o_req_dn = *np_prev->npe_name;
2525                         op->o_req_ndn = *np_prev->npe_nname;
2526                         rc = op->o_bd->be_delete( op, &rs_delete );
2527                         Debug( LDAP_DEBUG_SYNC,
2528                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2529                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2530
2531                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2532                                 Modifications mod1, mod2;
2533                                 mod1.sml_op = LDAP_MOD_REPLACE;
2534                                 mod1.sml_flags = 0;
2535                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2536                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2537                                 mod1.sml_numvals = 2;
2538                                 mod1.sml_values = &gcbva[0];
2539                                 mod1.sml_nvalues = NULL;
2540                                 mod1.sml_next = &mod2;
2541
2542                                 mod2.sml_op = LDAP_MOD_REPLACE;
2543                                 mod2.sml_flags = 0;
2544                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2545                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2546                                 mod2.sml_numvals = 1;
2547                                 mod2.sml_values = &gcbva[1];
2548                                 mod2.sml_nvalues = NULL;
2549                                 mod2.sml_next = NULL;
2550
2551                                 op->o_tag = LDAP_REQ_MODIFY;
2552                                 op->orm_modlist = &mod1;
2553
2554                                 rc = op->o_bd->be_modify( op, &rs_modify );
2555                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2556                         }
2557
2558                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2559                                         op->o_delete_glue_parent ) {
2560                                 op->o_delete_glue_parent = 0;
2561                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2562                                         slap_callback cb = { NULL };
2563                                         cb.sc_response = slap_null_cb;
2564                                         dnParent( &op->o_req_ndn, &pdn );
2565                                         op->o_req_dn = pdn;
2566                                         op->o_req_ndn = pdn;
2567                                         op->o_callback = &cb;
2568                                         /* give it a root privil ? */
2569                                         op->o_bd->be_delete( op, &rs_delete );
2570                                 } else {
2571                                         break;
2572                                 }
2573                         }
2574
2575                         op->o_delete_glue_parent = 0;
2576
2577                         ber_bvfree( np_prev->npe_name );
2578                         ber_bvfree( np_prev->npe_nname );
2579                         ch_free( np_prev );
2580
2581                         if ( slapd_shutdown ) {
2582                                 break;
2583                         }
2584                 }
2585
2586                 slap_graduate_commit_csn( op );
2587                 op->o_bd = be;
2588
2589                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2590                 BER_BVZERO( &op->o_csn );
2591         }
2592
2593         return;
2594 }
2595
2596 int
2597 syncrepl_add_glue(
2598         Operation* op,
2599         Entry *e )
2600 {
2601         Backend *be = op->o_bd;
2602         slap_callback cb = { NULL };
2603         Attribute       *a;
2604         int     rc;
2605         int suffrdns;
2606         int i;
2607         struct berval dn = BER_BVNULL;
2608         struct berval ndn = BER_BVNULL;
2609         Entry   *glue;
2610         SlapReply       rs_add = {REP_RESULT};
2611         struct berval   ptr, nptr;
2612         char            *comma;
2613
2614         op->o_tag = LDAP_REQ_ADD;
2615         op->o_callback = &cb;
2616         cb.sc_response = null_callback;
2617         cb.sc_private = NULL;
2618
2619         dn = e->e_name;
2620         ndn = e->e_nname;
2621
2622         /* count RDNs in suffix */
2623         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2624                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2625                         comma++;
2626                         ptr.bv_len -= comma - ptr.bv_val;
2627                         ptr.bv_val = comma;
2628                         i++;
2629                 }
2630                 suffrdns = i;
2631         } else {
2632                 /* suffix is "" */
2633                 suffrdns = 0;
2634         }
2635
2636         /* Start with BE suffix */
2637         ptr = dn;
2638         for ( i = 0; i < suffrdns; i++ ) {
2639                 comma = ber_bvrchr( &ptr, ',' );
2640                 if ( comma != NULL ) {
2641                         ptr.bv_len = comma - ptr.bv_val;
2642                 } else {
2643                         ptr.bv_len = 0;
2644                         break;
2645                 }
2646         }
2647
2648         if ( !BER_BVISEMPTY( &ptr ) ) {
2649                 dn.bv_len -= ptr.bv_len + 1;
2650                 dn.bv_val += ptr.bv_len + 1;
2651         }
2652
2653         /* the normalizedDNs are always the same length, no counting
2654          * required.
2655          */
2656         nptr = ndn;
2657         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2658                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2659                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2660
2661                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2662
2663         } else {
2664                 nptr.bv_len = 0;
2665         }
2666
2667         while ( ndn.bv_val > e->e_nname.bv_val ) {
2668                 glue = entry_alloc();
2669                 ber_dupbv( &glue->e_name, &dn );
2670                 ber_dupbv( &glue->e_nname, &ndn );
2671
2672                 a = attr_alloc( slap_schema.si_ad_objectClass );
2673
2674                 a->a_numvals = 2;
2675                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2676                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2677                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2678                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2679
2680                 a->a_nvals = a->a_vals;
2681
2682                 a->a_next = glue->e_attrs;
2683                 glue->e_attrs = a;
2684
2685                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2686
2687                 a->a_numvals = 1;
2688                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2689                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2690                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2691
2692                 a->a_nvals = a->a_vals;
2693
2694                 a->a_next = glue->e_attrs;
2695                 glue->e_attrs = a;
2696
2697                 op->o_req_dn = glue->e_name;
2698                 op->o_req_ndn = glue->e_nname;
2699                 op->ora_e = glue;
2700                 rc = be->be_add ( op, &rs_add );
2701                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2702                         if ( op->ora_e == glue )
2703                                 be_entry_release_w( op, glue );
2704                 } else {
2705                 /* incl. ALREADY EXIST */
2706                         entry_free( glue );
2707                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2708                                 entry_free( e );
2709                                 return rc;
2710                         }
2711                 }
2712
2713                 /* Move to next child */
2714                 comma = ber_bvrchr( &ptr, ',' );
2715                 if ( comma == NULL ) {
2716                         break;
2717                 }
2718                 ptr.bv_len = comma - ptr.bv_val;
2719
2720                 dn.bv_val = ++comma;
2721                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2722
2723                 comma = ber_bvrchr( &nptr, ',' );
2724                 assert( comma != NULL );
2725                 nptr.bv_len = comma - nptr.bv_val;
2726
2727                 ndn.bv_val = ++comma;
2728                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2729         }
2730
2731         op->o_req_dn = e->e_name;
2732         op->o_req_ndn = e->e_nname;
2733         op->ora_e = e;
2734         rc = be->be_add ( op, &rs_add );
2735         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2736                 if ( op->ora_e == e )
2737                         be_entry_release_w( op, e );
2738         } else {
2739                 entry_free( e );
2740         }
2741
2742         return rc;
2743 }
2744
2745 static int
2746 syncrepl_updateCookie(
2747         syncinfo_t *si,
2748         Operation *op,
2749         struct berval *pdn,
2750         struct sync_cookie *syncCookie )
2751 {
2752         Backend *be = op->o_bd;
2753         Modifications mod;
2754         struct berval first = BER_BVNULL;
2755
2756         int rc, i, j;
2757         ber_len_t len;
2758
2759         slap_callback cb = { NULL };
2760         SlapReply       rs_modify = {REP_RESULT};
2761
2762         mod.sml_op = LDAP_MOD_REPLACE;
2763         mod.sml_desc = slap_schema.si_ad_contextCSN;
2764         mod.sml_type = mod.sml_desc->ad_cname;
2765         mod.sml_flags = SLAP_MOD_INTERNAL;
2766         mod.sml_nvalues = NULL;
2767         mod.sml_next = NULL;
2768
2769         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2770
2771         /* clone the cookieState CSNs so we can Replace the whole thing */
2772         mod.sml_numvals = si->si_cookieState->cs_num;
2773         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2774         for ( i=0; i<mod.sml_numvals; i++ )
2775                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2776         BER_BVZERO( &mod.sml_values[i] );
2777
2778         /* find any CSNs in the syncCookie that are newer than the cookieState */
2779         for ( i=0; i<syncCookie->numcsns; i++ ) {
2780                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2781                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2782                                 continue;
2783                         len = syncCookie->ctxcsn[i].bv_len;
2784                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2785                                 len = si->si_cookieState->cs_vals[j].bv_len;
2786                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2787                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2788                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2789                                 if ( BER_BVISNULL( &first ) ) {
2790                                         first = syncCookie->ctxcsn[i];
2791
2792                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2793                                 {
2794                                         first = syncCookie->ctxcsn[i];
2795                                 }
2796                         }
2797                         break;
2798                 }
2799                 /* there was no match for this SID, it's a new CSN */
2800                 if ( j == si->si_cookieState->cs_num ) {
2801                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2802                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2803                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2804                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2805                         if ( BER_BVISNULL( &first ) ) {
2806                                 first = syncCookie->ctxcsn[i];
2807                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2808                         {
2809                                 first = syncCookie->ctxcsn[i];
2810                         }
2811                 }
2812         }
2813         /* Should never happen, ITS#5065 */
2814         if ( BER_BVISNULL( &first )) {
2815                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2816                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2817                 return 0;
2818         }
2819         op->o_bd = si->si_wbe;
2820         slap_queue_csn( op, &first );
2821
2822         op->o_tag = LDAP_REQ_MODIFY;
2823
2824         cb.sc_response = null_callback;
2825         cb.sc_private = si;
2826
2827         op->o_callback = &cb;
2828         op->o_req_dn = op->o_bd->be_suffix[0];
2829         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2830
2831         /* update contextCSN */
2832         op->o_dont_replicate = 1;
2833
2834         op->orm_modlist = &mod;
2835         op->orm_no_opattrs = 1;
2836         rc = op->o_bd->be_modify( op, &rs_modify );
2837         op->orm_no_opattrs = 0;
2838         op->o_dont_replicate = 0;
2839
2840         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2841                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2842                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2843                 /* If we replaced any old values */
2844                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2845                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2846                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2847                                                 &mod.sml_values[i] );
2848                 }
2849                 /* Handle any added values */
2850                 if ( i < mod.sml_numvals ) {
2851                         si->si_cookieState->cs_num = mod.sml_numvals;
2852                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2853                         free( si->si_cookieState->cs_sids );
2854                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2855                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2856                 }
2857
2858                 si->si_cookieState->cs_age++;
2859                 si->si_cookieAge = si->si_cookieState->cs_age;
2860         } else {
2861                 Debug( LDAP_DEBUG_ANY,
2862                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2863                         si->si_ridtxt, rs_modify.sr_err, 0 );
2864         }
2865         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2866
2867         op->o_bd = be;
2868         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2869         BER_BVZERO( &op->o_csn );
2870         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2871         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2872
2873         return rc;
2874 }
2875
2876 static void
2877 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2878         Modifications ***mret, Modifications ***mcur )
2879 {
2880         int i, j;
2881         Modifications *mod, **modtail;
2882
2883         modtail = *mret;
2884
2885         if ( old ) {
2886                 int n, o, nn, no;
2887                 struct berval **adds, **dels;
2888                 /* count old and new */
2889                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2890                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2891
2892                 /* there MUST be both old and new values */
2893                 assert( o != 0 );
2894                 assert( n != 0 );
2895                 j = 0;
2896
2897                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2898                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2899
2900                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2901                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2902
2903                 nn = n; no = o;
2904
2905                 for ( i=0; i<o; i++ ) {
2906                         for ( j=0; j<n; j++ ) {
2907                                 if ( !adds[j] )
2908                                         continue;
2909                                 if ( bvmatch( dels[i], adds[j] ) ) {
2910                                         no--;
2911                                         nn--;
2912                                         adds[j] = NULL;
2913                                         dels[i] = NULL;
2914                                         break;
2915                                 }
2916                         }
2917                 }
2918
2919                 /* Don't delete/add an objectClass, always use the replace op.
2920                  * Modify would fail if provider has replaced entry with a new,
2921                  * and the new explicitly includes a superior of a class that was
2922                  * only included implicitly in the old entry.  Ref ITS#5517.
2923                  *
2924                  * Also use replace op if attr has no equality matching rule.
2925                  * (ITS#5781)
2926                  */
2927                 if ( nn && no < o &&
2928                         ( old->a_desc == slap_schema.si_ad_objectClass ||
2929                          !old->a_desc->ad_type->sat_equality ))
2930                         no = o;
2931
2932                 i = j;
2933                 /* all old values were deleted, just use the replace op */
2934                 if ( no == o ) {
2935                         i = j-1;
2936                 } else if ( no ) {
2937                 /* delete some values */
2938                         mod = ch_malloc( sizeof( Modifications ) );
2939                         mod->sml_op = LDAP_MOD_DELETE;
2940                         mod->sml_flags = 0;
2941                         mod->sml_desc = old->a_desc;
2942                         mod->sml_type = mod->sml_desc->ad_cname;
2943                         mod->sml_numvals = no;
2944                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2945                         if ( old->a_vals != old->a_nvals ) {
2946                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2947                         } else {
2948                                 mod->sml_nvalues = NULL;
2949                         }
2950                         j = 0;
2951                         for ( i = 0; i < o; i++ ) {
2952                                 if ( !dels[i] ) continue;
2953                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2954                                 if ( mod->sml_nvalues ) {
2955                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2956                                 }
2957                                 j++;
2958                         }
2959                         BER_BVZERO( &mod->sml_values[j] );
2960                         if ( mod->sml_nvalues ) {
2961                                 BER_BVZERO( &mod->sml_nvalues[j] );
2962                         }
2963                         *modtail = mod;
2964                         modtail = &mod->sml_next;
2965                         i = j;
2966                 }
2967                 op->o_tmpfree( dels, op->o_tmpmemctx );
2968                 /* some values were added */
2969                 if ( nn && no < o ) {
2970                         mod = ch_malloc( sizeof( Modifications ) );
2971                         mod->sml_op = LDAP_MOD_ADD;
2972                         mod->sml_flags = 0;
2973                         mod->sml_desc = old->a_desc;
2974                         mod->sml_type = mod->sml_desc->ad_cname;
2975                         mod->sml_numvals = nn;
2976                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2977                         if ( old->a_vals != old->a_nvals ) {
2978                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2979                         } else {
2980                                 mod->sml_nvalues = NULL;
2981                         }
2982                         j = 0;
2983                         for ( i = 0; i < n; i++ ) {
2984                                 if ( !adds[i] ) continue;
2985                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2986                                 if ( mod->sml_nvalues ) {
2987                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2988                                 }
2989                                 j++;
2990                         }
2991                         BER_BVZERO( &mod->sml_values[j] );
2992                         if ( mod->sml_nvalues ) {
2993                                 BER_BVZERO( &mod->sml_nvalues[j] );
2994                         }
2995                         *modtail = mod;
2996                         modtail = &mod->sml_next;
2997                         i = j;
2998                 }
2999                 op->o_tmpfree( adds, op->o_tmpmemctx );
3000         } else {
3001                 /* new attr, just use the new mod */
3002                 i = 0;
3003                 j = 1;
3004         }
3005         /* advance to next element */
3006         mod = **mcur;
3007         if ( mod ) {
3008                 if ( i != j ) {
3009                         **mcur = mod->sml_next;
3010                         *modtail = mod;
3011                         modtail = &mod->sml_next;
3012                 } else {
3013                         *mcur = &mod->sml_next;
3014                 }
3015         }
3016         *mret = modtail;
3017 }
3018
3019 static int
3020 dn_callback(
3021         Operation*      op,
3022         SlapReply*      rs )
3023 {
3024         dninfo *dni = op->o_callback->sc_private;
3025
3026         if ( rs->sr_type == REP_SEARCH ) {
3027                 if ( !BER_BVISNULL( &dni->dn ) ) {
3028                         Debug( LDAP_DEBUG_ANY,
3029                                 "dn_callback : consistency error - "
3030                                 "entryUUID is not unique\n", 0, 0, 0 );
3031                 } else {
3032                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3033                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3034                         /* If there is a new entry, see if it differs from the old.
3035                          * We compare the non-normalized values so that cosmetic changes
3036                          * in the provider are always propagated.
3037                          */
3038                         if ( dni->new_entry ) {
3039                                 Modifications **modtail, **ml;
3040                                 Attribute *old, *new;
3041                                 struct berval old_rdn, new_rdn;
3042                                 struct berval old_p, new_p;
3043                                 int is_ctx;
3044
3045                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3046                                         &op->o_bd->be_nsuffix[0] );
3047
3048                                 /* Did the DN change?
3049                                  * case changes in the parent are ignored,
3050                                  * we only want to know if the RDN was
3051                                  * actually changed.
3052                                  */
3053                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3054                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3055                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3056                                 dnParent( &dni->new_entry->e_nname, &new_p );
3057
3058                                 if ( !dn_match( &old_rdn, &new_rdn ) ||
3059                                         ber_bvstrcasecmp( &old_p, &new_p ))
3060                                 {
3061                                         struct berval oldRDN, oldVal;
3062                                         AttributeDescription *ad = NULL;
3063                                         int oldpos, newpos;
3064                                         Attribute *a;
3065
3066                                         dni->renamed = 1;
3067                                         /* See if the oldRDN was deleted */
3068                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3069                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3070                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3071                                                 oldRDN.bv_val );
3072                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3073                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3074                                         dni->oldDesc = ad;
3075                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3076                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3077                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3078                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3079                                         if ( !a || oldpos != newpos || attr_valfind( a,
3080                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3081                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3082                                                 SLAP_MR_VALUE_OF_SYNTAX,
3083                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3084                                         {
3085                                                 dni->delOldRDN = 1;
3086                                         }
3087                                         /* Get the newRDN's desc */
3088                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3089                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3090                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3091                                         ad = NULL;
3092                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3093                                         dni->newDesc = ad;
3094
3095                                         /* A ModDN has happened, but other changes may have
3096                                          * occurred before we picked it up. So fallthru to
3097                                          * regular Modify processing.
3098                                          */
3099                                 }
3100
3101                                 modtail = &dni->mods;
3102                                 ml = dni->modlist;
3103
3104                                 /* Make sure new entry is actually newer than old entry */
3105                                 old = attr_find( rs->sr_entry->e_attrs,
3106                                         slap_schema.si_ad_entryCSN );
3107                                 new = attr_find( dni->new_entry->e_attrs,
3108                                         slap_schema.si_ad_entryCSN );
3109                                 if ( new && old ) {
3110                                         int rc;
3111                                         ber_len_t len = old->a_vals[0].bv_len;
3112                                         if ( len > new->a_vals[0].bv_len )
3113                                                 len = new->a_vals[0].bv_len;
3114                                         rc = memcmp( old->a_vals[0].bv_val,
3115                                                 new->a_vals[0].bv_val, len );
3116                                         if ( rc > 0 ) {
3117                                                 Debug( LDAP_DEBUG_SYNC,
3118                                                         "dn_callback : new entry is older than ours "
3119                                                         "%s ours %s, new %s\n",
3120                                                         rs->sr_entry->e_name.bv_val,
3121                                                         old->a_vals[0].bv_val,
3122                                                         new->a_vals[0].bv_val );
3123                                                 return LDAP_SUCCESS;
3124                                         } else if ( rc == 0 ) {
3125                                                 Debug( LDAP_DEBUG_SYNC,
3126                                                         "dn_callback : entries have identical CSN "
3127                                                         "%s %s\n",
3128                                                         rs->sr_entry->e_name.bv_val,
3129                                                         old->a_vals[0].bv_val, 0 );
3130                                                 return LDAP_SUCCESS;
3131                                         }
3132                                 }
3133
3134                                 /* We assume that attributes are saved in the same order
3135                                  * in the remote and local databases. So if we walk through
3136                                  * the attributeDescriptions one by one they should match in
3137                                  * lock step. If not, look for an add or delete.
3138                                  */
3139                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3140                                                 old && new; )
3141                                 {
3142                                         /* If we've seen this before, use its mod now */
3143                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3144                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3145                                                 new = new->a_next;
3146                                                 continue;
3147                                         }
3148                                         /* Skip contextCSN */
3149                                         if ( is_ctx && old->a_desc ==
3150                                                 slap_schema.si_ad_contextCSN ) {
3151                                                 old = old->a_next;
3152                                                 continue;
3153                                         }
3154
3155                                         if ( old->a_desc != new->a_desc ) {
3156                                                 Modifications *mod;
3157                                                 Attribute *tmp;
3158
3159                                                 /* If it's just been re-added later,
3160                                                  * remember that we've seen it.
3161                                                  */
3162                                                 tmp = attr_find( new, old->a_desc );
3163                                                 if ( tmp ) {
3164                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3165                                                 } else {
3166                                                         /* If it's a new attribute, pull it in.
3167                                                          */
3168                                                         tmp = attr_find( old, new->a_desc );
3169                                                         if ( !tmp ) {
3170                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3171                                                                 new = new->a_next;
3172                                                                 continue;
3173                                                         }
3174                                                         /* Delete old attr */
3175                                                         mod = ch_malloc( sizeof( Modifications ) );
3176                                                         mod->sml_op = LDAP_MOD_DELETE;
3177                                                         mod->sml_flags = 0;
3178                                                         mod->sml_desc = old->a_desc;
3179                                                         mod->sml_type = mod->sml_desc->ad_cname;
3180                                                         mod->sml_numvals = 0;
3181                                                         mod->sml_values = NULL;
3182                                                         mod->sml_nvalues = NULL;
3183                                                         *modtail = mod;
3184                                                         modtail = &mod->sml_next;
3185                                                 }
3186                                                 old = old->a_next;
3187                                                 continue;
3188                                         }
3189                                         /* kludge - always update modifiersName so that it
3190                                          * stays co-located with the other mod opattrs. But only
3191                                          * if we know there are other valid mods.
3192                                          */
3193                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3194                                                 dni->mods )
3195                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3196                                         else
3197                                                 attr_cmp( op, old, new, &modtail, &ml );
3198                                         new = new->a_next;
3199                                         old = old->a_next;
3200                                 }
3201                                 *modtail = *ml;
3202                                 *ml = NULL;
3203                         }
3204                 }
3205         } else if ( rs->sr_type == REP_RESULT ) {
3206                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3207                         Debug( LDAP_DEBUG_ANY,
3208                                 "dn_callback : consistency error - "
3209                                 "entryUUID is not unique\n", 0, 0, 0 );
3210                 }
3211         }
3212
3213         return LDAP_SUCCESS;
3214 }
3215
3216 static int
3217 nonpresent_callback(
3218         Operation*      op,
3219         SlapReply*      rs )
3220 {
3221         syncinfo_t *si = op->o_callback->sc_private;
3222         Attribute *a;
3223         int count = 0;
3224         struct berval* present_uuid = NULL;
3225         struct nonpresent_entry *np_entry;
3226
3227         if ( rs->sr_type == REP_RESULT ) {
3228                 count = avl_free( si->si_presentlist, ch_free );
3229                 si->si_presentlist = NULL;
3230
3231         } else if ( rs->sr_type == REP_SEARCH ) {
3232                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3233                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3234
3235                         if ( a ) {
3236                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3237                                         syncuuid_cmp );
3238                         }
3239
3240                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3241                                 char buf[sizeof("rid=999 not")];
3242
3243                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3244                                         present_uuid ? "got" : "not" );
3245
3246                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3247                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3248                         }
3249
3250                         if ( a == NULL ) return 0;
3251                 }
3252
3253                 if ( present_uuid == NULL ) {
3254                         np_entry = (struct nonpresent_entry *)
3255                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3256                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3257                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3258                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3259
3260                 } else {
3261                         avl_delete( &si->si_presentlist,
3262                                 &a->a_nvals[0], syncuuid_cmp );
3263                         ch_free( present_uuid );
3264                 }
3265         }
3266         return LDAP_SUCCESS;
3267 }
3268
3269 static int
3270 null_callback(
3271         Operation*      op,
3272         SlapReply*      rs )
3273 {
3274         if ( rs->sr_err != LDAP_SUCCESS &&
3275                 rs->sr_err != LDAP_REFERRAL &&
3276                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3277                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3278                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3279         {
3280                 Debug( LDAP_DEBUG_ANY,
3281                         "null_callback : error code 0x%x\n",
3282                         rs->sr_err, 0, 0 );
3283         }
3284         return LDAP_SUCCESS;
3285 }
3286
3287 static struct berval *
3288 slap_uuidstr_from_normalized(
3289         struct berval* uuidstr,
3290         struct berval* normalized,
3291         void *ctx )
3292 {
3293 #if 0
3294         struct berval *new;
3295         unsigned char nibble;
3296         int i, d = 0;
3297
3298         if ( normalized == NULL ) return NULL;
3299         if ( normalized->bv_len != 16 ) return NULL;
3300
3301         if ( uuidstr ) {
3302                 new = uuidstr;
3303         } else {
3304                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3305                 if ( new == NULL ) {
3306                         return NULL;
3307                 }
3308         }
3309
3310         new->bv_len = 36;
3311
3312         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3313                 if ( new != uuidstr ) {
3314                         slap_sl_free( new, ctx );
3315                 }
3316                 return NULL;
3317         }
3318
3319         for ( i = 0; i < 16; i++ ) {
3320                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3321                         new->bv_val[(i<<1)+d] = '-';
3322                         d += 1;
3323                 }
3324
3325                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3326                 if ( nibble < 10 ) {
3327                         new->bv_val[(i<<1)+d] = nibble + '0';
3328                 } else {
3329                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3330                 }
3331
3332                 nibble = (normalized->bv_val[i]) & 0xF;
3333                 if ( nibble < 10 ) {
3334                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3335                 } else {
3336                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3337                 }
3338         }
3339
3340         new->bv_val[new->bv_len] = '\0';
3341         return new;
3342 #endif
3343
3344         struct berval   *new;
3345         int             rc = 0;
3346
3347         if ( normalized == NULL ) return NULL;
3348         if ( normalized->bv_len != 16 ) return NULL;
3349
3350         if ( uuidstr ) {
3351                 new = uuidstr;
3352
3353         } else {
3354                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3355                 if ( new == NULL ) {
3356                         return NULL;
3357                 }
3358         }
3359
3360         new->bv_len = 36;
3361
3362         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3363                 rc = 1;
3364                 goto done;
3365         }
3366
3367         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3368                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3369
3370 done:;
3371         if ( rc == -1 ) {
3372                 if ( new != NULL ) {
3373                         if ( new->bv_val != NULL ) {
3374                                 slap_sl_free( new->bv_val, ctx );
3375                         }
3376
3377                         if ( new != uuidstr ) {
3378                                 slap_sl_free( new, ctx );
3379                         }
3380                 }
3381                 new = NULL;
3382
3383         } else {
3384                 new->bv_len = rc;
3385         }
3386
3387         return new;
3388 }
3389
3390 static int
3391 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3392 {
3393         const struct berval *uuid1 = v_uuid1;
3394         const struct berval *uuid2 = v_uuid2;
3395         int rc = uuid1->bv_len - uuid2->bv_len;
3396         if ( rc ) return rc;
3397         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3398 }
3399
3400 void
3401 syncinfo_free( syncinfo_t *sie, int free_all )
3402 {
3403         syncinfo_t *si_next;
3404
3405         if ( free_all && sie->si_cookieState ) {
3406                 ch_free( sie->si_cookieState->cs_sids );
3407                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3408                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3409                 ch_free( sie->si_cookieState );
3410         }
3411         do {
3412                 si_next = sie->si_next;
3413
3414                 if ( sie->si_ld ) {
3415                         if ( sie->si_conn ) {
3416                                 connection_client_stop( sie->si_conn );
3417                                 sie->si_conn = NULL;
3418                         }
3419                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3420                 }
3421
3422                 /* re-fetch it, in case it was already removed */
3423                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3424                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3425                 if ( sie->si_re ) {
3426                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3427                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3428                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3429                 }
3430
3431                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3432                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3433
3434                 bindconf_free( &sie->si_bindconf );
3435
3436                 if ( sie->si_filterstr.bv_val ) {
3437                         ch_free( sie->si_filterstr.bv_val );
3438                 }
3439                 if ( sie->si_logfilterstr.bv_val ) {
3440                         ch_free( sie->si_logfilterstr.bv_val );
3441                 }
3442                 if ( sie->si_base.bv_val ) {
3443                         ch_free( sie->si_base.bv_val );
3444                 }
3445                 if ( sie->si_logbase.bv_val ) {
3446                         ch_free( sie->si_logbase.bv_val );
3447                 }
3448                 if ( sie->si_attrs ) {
3449                         int i = 0;
3450                         while ( sie->si_attrs[i] != NULL ) {
3451                                 ch_free( sie->si_attrs[i] );
3452                                 i++;
3453                         }
3454                         ch_free( sie->si_attrs );
3455                 }
3456                 if ( sie->si_exattrs ) {
3457                         int i = 0;
3458                         while ( sie->si_exattrs[i] != NULL ) {
3459                                 ch_free( sie->si_exattrs[i] );
3460                                 i++;
3461                         }
3462                         ch_free( sie->si_exattrs );
3463                 }
3464                 if ( sie->si_anlist ) {
3465                         int i = 0;
3466                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3467                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3468                                 i++;
3469                         }
3470                         ch_free( sie->si_anlist );
3471                 }
3472                 if ( sie->si_exanlist ) {
3473                         int i = 0;
3474                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3475                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3476                                 i++;
3477                         }
3478                         ch_free( sie->si_exanlist );
3479                 }
3480                 if ( sie->si_retryinterval ) {
3481                         ch_free( sie->si_retryinterval );
3482                 }
3483                 if ( sie->si_retrynum ) {
3484                         ch_free( sie->si_retrynum );
3485                 }
3486                 if ( sie->si_retrynum_init ) {
3487                         ch_free( sie->si_retrynum_init );
3488                 }
3489                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3490                 if ( sie->si_presentlist ) {
3491                     avl_free( sie->si_presentlist, ch_free );
3492                 }
3493                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3494                         struct nonpresent_entry* npe;
3495                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3496                         LDAP_LIST_REMOVE( npe, npe_link );
3497                         if ( npe->npe_name ) {
3498                                 if ( npe->npe_name->bv_val ) {
3499                                         ch_free( npe->npe_name->bv_val );
3500                                 }
3501                                 ch_free( npe->npe_name );
3502                         }
3503                         if ( npe->npe_nname ) {
3504                                 if ( npe->npe_nname->bv_val ) {
3505                                         ch_free( npe->npe_nname->bv_val );
3506                                 }
3507                                 ch_free( npe->npe_nname );
3508                         }
3509                         ch_free( npe );
3510                 }
3511                 ch_free( sie );
3512                 sie = si_next;
3513         } while ( free_all && si_next );
3514 }
3515
3516
3517
3518 /* NOTE: used & documented in slapd.conf(5) */
3519 #define IDSTR                   "rid"
3520 #define PROVIDERSTR             "provider"
3521 #define SCHEMASTR               "schemachecking"
3522 #define FILTERSTR               "filter"
3523 #define SEARCHBASESTR           "searchbase"
3524 #define SCOPESTR                "scope"
3525 #define ATTRSONLYSTR            "attrsonly"
3526 #define ATTRSSTR                "attrs"
3527 #define TYPESTR                 "type"
3528 #define INTERVALSTR             "interval"
3529 #define RETRYSTR                "retry"
3530 #define SLIMITSTR               "sizelimit"
3531 #define TLIMITSTR               "timelimit"
3532 #define SYNCDATASTR             "syncdata"
3533 #define LOGBASESTR              "logbase"
3534 #define LOGFILTERSTR    "logfilter"
3535
3536 /* FIXME: undocumented */
3537 #define EXATTRSSTR              "exattrs"
3538 #define MANAGEDSAITSTR          "manageDSAit"
3539
3540 /* mandatory */
3541 #define GOT_ID                  0x0001
3542 #define GOT_PROVIDER    0x0002
3543 #define GOT_BASE                0x0004
3544
3545 /* check */
3546 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3547
3548 static struct {
3549         struct berval key;
3550         int val;
3551 } scopes[] = {
3552         { BER_BVC("base"), LDAP_SCOPE_BASE },
3553         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3554         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3555         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3556         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3557         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3558         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3559         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3560         { BER_BVNULL, 0 }
3561 };
3562
3563 static slap_verbmasks datamodes[] = {
3564         { BER_BVC("default"), SYNCDATA_DEFAULT },
3565         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3566         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3567         { BER_BVNULL, 0 }
3568 };
3569
3570 static int
3571 parse_syncrepl_line(
3572         ConfigArgs      *c,
3573         syncinfo_t      *si )
3574 {
3575         int     gots = 0;
3576         int     i;
3577         char    *val;
3578
3579         for ( i = 1; i < c->argc; i++ ) {
3580                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3581                                         STRLENOF( IDSTR "=" ) ) )
3582                 {
3583                         int tmp;
3584                         /* '\0' string terminator accounts for '=' */
3585                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3586                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3587                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3588                                         "Error: parse_syncrepl_line: "
3589                                         "unable to parse syncrepl id \"%s\"", val );
3590                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3591                                 return -1;
3592                         }
3593                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3594                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3595                                         "Error: parse_syncrepl_line: "
3596                                         "syncrepl id %d is out of range [0..4095]", tmp );
3597                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3598                                 return -1;
3599                         }
3600                         si->si_rid = tmp;
3601                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3602                         gots |= GOT_ID;
3603                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3604                                         STRLENOF( PROVIDERSTR "=" ) ) )
3605                 {
3606                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3607                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3608                         gots |= GOT_PROVIDER;
3609                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3610                                         STRLENOF( SCHEMASTR "=" ) ) )
3611                 {
3612                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3613                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3614                                 si->si_schemachecking = 1;
3615                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3616                                 si->si_schemachecking = 0;
3617                         } else {
3618                                 si->si_schemachecking = 1;
3619                         }
3620                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3621                                         STRLENOF( FILTERSTR "=" ) ) )
3622                 {
3623                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3624                         if ( si->si_filterstr.bv_val )
3625                                 ch_free( si->si_filterstr.bv_val );
3626                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3627                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3628                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3629                 {
3630                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3631                         if ( si->si_logfilterstr.bv_val )
3632                                 ch_free( si->si_logfilterstr.bv_val );
3633                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3634                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3635                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3636                 {
3637                         struct berval   bv;
3638                         int             rc;
3639
3640                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3641                         if ( si->si_base.bv_val ) {
3642                                 ch_free( si->si_base.bv_val );
3643                         }
3644                         ber_str2bv( val, 0, 0, &bv );
3645                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3646                         if ( rc != LDAP_SUCCESS ) {
3647                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3648                                         "Invalid base DN \"%s\": %d (%s)",
3649                                         val, rc, ldap_err2string( rc ) );
3650                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3651                                 return -1;
3652                         }
3653                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3654                                 ch_free( si->si_base.bv_val );
3655                                 BER_BVZERO( &si->si_base );
3656                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3657                                         "Base DN \"%s\" is not within the database naming context",
3658                                         val );
3659                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3660                                 return -1;
3661                         }
3662                         gots |= GOT_BASE;
3663                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3664                                         STRLENOF( LOGBASESTR "=" ) ) )
3665                 {
3666                         struct berval   bv;
3667                         int             rc;
3668
3669                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3670                         if ( si->si_logbase.bv_val ) {
3671                                 ch_free( si->si_logbase.bv_val );
3672                         }
3673                         ber_str2bv( val, 0, 0, &bv );
3674                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3675                         if ( rc != LDAP_SUCCESS ) {
3676                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3677                                         "Invalid logbase DN \"%s\": %d (%s)",
3678                                         val, rc, ldap_err2string( rc ) );
3679                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3680                                 return -1;
3681                         }
3682                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3683                                         STRLENOF( SCOPESTR "=" ) ) )
3684                 {
3685                         int j;
3686                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3687                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3688                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3689                                         si->si_scope = scopes[j].val;
3690                                         break;
3691                                 }
3692                         }
3693                         if ( BER_BVISNULL(&scopes[j].key) ) {
3694                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3695                                         "Error: parse_syncrepl_line: "
3696                                         "unknown scope \"%s\"", val);
3697                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3698                                 return -1;
3699                         }
3700                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3701                                         STRLENOF( ATTRSONLYSTR ) ) )
3702                 {
3703                         si->si_attrsonly = 1;
3704                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3705                                         STRLENOF( ATTRSSTR "=" ) ) )
3706                 {
3707                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3708                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3709                                 char *attr_fname;
3710                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3711                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3712                                 if ( si->si_anlist == NULL ) {
3713                                         ch_free( attr_fname );
3714                                         return -1;
3715                                 }
3716                                 si->si_anfile = attr_fname;
3717                         } else {
3718                                 char *str, *s, *next;
3719                                 const char *delimstr = " ,\t";
3720                                 str = ch_strdup( val );
3721                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3722                                                 s != NULL;
3723                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3724                                 {
3725                                         if ( strlen(s) == 1 && *s == '*' ) {
3726                                                 si->si_allattrs = 1;
3727                                                 val[ s - str ] = delimstr[0];
3728                                         }
3729                                         if ( strlen(s) == 1 && *s == '+' ) {
3730                                                 si->si_allopattrs = 1;
3731                                                 val [ s - str ] = delimstr[0];
3732                                         }
3733                                 }
3734                                 ch_free( str );
3735                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3736                                 if ( si->si_anlist == NULL ) {
3737                                         return -1;
3738                                 }
3739                         }
3740                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3741                                         STRLENOF( EXATTRSSTR "=" ) ) )
3742                 {
3743                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3744                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3745                                 char *attr_fname;
3746                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3747                                 si->si_exanlist = file2anlist(
3748                                         si->si_exanlist, attr_fname, " ,\t" );
3749                                 if ( si->si_exanlist == NULL ) {
3750                                         ch_free( attr_fname );
3751                                         return -1;
3752                                 }
3753                                 ch_free( attr_fname );
3754                         } else {
3755                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3756                                 if ( si->si_exanlist == NULL ) {
3757                                         return -1;
3758                                 }
3759                         }
3760                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3761                                         STRLENOF( TYPESTR "=" ) ) )
3762                 {
3763                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3764                         if ( !strncasecmp( val, "refreshOnly",
3765                                                 STRLENOF("refreshOnly") ) )
3766                         {
3767                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3768                         } else if ( !strncasecmp( val, "refreshAndPersist",
3769                                                 STRLENOF("refreshAndPersist") ) )
3770                         {
3771                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3772                                 si->si_interval = 60;
3773                         } else {
3774                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3775                                         "Error: parse_syncrepl_line: "
3776                                         "unknown sync type \"%s\"", val);
3777                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3778                                 return -1;
3779                         }
3780                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3781                                         STRLENOF( INTERVALSTR "=" ) ) )
3782                 {
3783                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3784                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3785                                 si->si_interval = 0;
3786                         } else if ( strchr( val, ':' ) != NULL ) {
3787                                 char *next, *ptr = val;
3788                                 int dd, hh, mm, ss;
3789
3790                                 dd = strtol( ptr, &next, 10 );
3791                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3792                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3793                                                 "Error: parse_syncrepl_line: "
3794                                                 "invalid interval \"%s\", unable to parse days", val );
3795                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3796                                         return -1;
3797                                 }
3798                                 ptr = next + 1;
3799                                 hh = strtol( ptr, &next, 10 );
3800                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3801                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3802                                                 "Error: parse_syncrepl_line: "
3803                                                 "invalid interval \"%s\", unable to parse hours", val );
3804                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3805                                         return -1;
3806                                 }
3807                                 ptr = next + 1;
3808                                 mm = strtol( ptr, &next, 10 );
3809                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3810                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3811                                                 "Error: parse_syncrepl_line: "
3812                                                 "invalid interval \"%s\", unable to parse minutes", val );
3813                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3814                                         return -1;
3815                                 }
3816                                 ptr = next + 1;
3817                                 ss = strtol( ptr, &next, 10 );
3818                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3819                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3820                                                 "Error: parse_syncrepl_line: "
3821                                                 "invalid interval \"%s\", unable to parse seconds", val );
3822                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3823                                         return -1;
3824                                 }
3825                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3826                         } else {
3827                                 unsigned long   t;
3828
3829                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3830                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3831                                                 "Error: parse_syncrepl_line: "
3832                                                 "invalid interval \"%s\"", val );
3833                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3834                                         return -1;
3835                                 }
3836                                 si->si_interval = (time_t)t;
3837                         }
3838                         if ( si->si_interval < 0 ) {
3839                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3840                                         "Error: parse_syncrepl_line: "
3841                                         "invalid interval \"%ld\"",
3842                                         (long) si->si_interval);
3843                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3844                                 return -1;
3845                         }
3846                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3847                                         STRLENOF( RETRYSTR "=" ) ) )
3848                 {
3849                         char **retry_list;
3850                         int j, k, n;
3851
3852                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3853                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3854                         retry_list[0] = NULL;
3855
3856                         slap_str2clist( &retry_list, val, " ,\t" );
3857
3858                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3859                         n = k / 2;
3860                         if ( k % 2 ) {
3861                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3862                                         "Error: incomplete syncrepl retry list" );
3863                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3864                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3865                                         ch_free( retry_list[k] );
3866                                 }
3867                                 ch_free( retry_list );
3868                                 return 1;
3869                         }
3870                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3871                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3872                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3873                         for ( j = 0; j < n; j++ ) {
3874                                 unsigned long   t;
3875                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3876                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3877                                                 "Error: invalid retry interval \"%s\" (#%d)",
3878                                                 retry_list[j*2], j );
3879                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3880                                         /* do some cleanup */
3881                                         return 1;
3882                                 }
3883                                 si->si_retryinterval[j] = (time_t)t;
3884                                 if ( *retry_list[j*2+1] == '+' ) {
3885                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3886                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3887                                         j++;
3888                                         break;
3889                                 } else {
3890                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3891                                                         || si->si_retrynum_init[j] <= 0 )
3892                                         {
3893                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3894                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3895                                                         retry_list[j*2+1], j );
3896                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3897                                                 /* do some cleanup */
3898                                                 return 1;
3899                                         }
3900                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3901                                                         || si->si_retrynum[j] <= 0 )
3902                                         {
3903                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3904                                                         "Error: invalid retry number \"%s\" (#%d)",
3905                                                         retry_list[j*2+1], j );
3906                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3907                                                 /* do some cleanup */
3908                                                 return 1;
3909                                         }
3910                                 }
3911                         }
3912                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3913                         si->si_retrynum[j] = RETRYNUM_TAIL;
3914                         si->si_retryinterval[j] = 0;
3915
3916                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3917                                 ch_free( retry_list[k] );
3918                         }
3919                         ch_free( retry_list );
3920                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3921                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3922                 {
3923                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3924                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3925                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3926                         {
3927                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3928                                         "invalid manageDSAit value \"%s\".\n",
3929                                         val );
3930                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3931                                 return 1;
3932                         }
3933                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3934                                         STRLENOF( SLIMITSTR "=") ) )
3935                 {
3936                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3937                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3938                                 si->si_slimit = 0;
3939
3940                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3941                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3942                                         "invalid size limit value \"%s\".\n",
3943                                         val );
3944                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3945                                 return 1;
3946                         }
3947                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3948                                         STRLENOF( TLIMITSTR "=" ) ) )
3949                 {
3950                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3951                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3952                                 si->si_tlimit = 0;
3953
3954                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3955                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3956                                         "invalid time limit value \"%s\".\n",
3957                                         val );
3958                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3959                                 return 1;
3960                         }
3961                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3962                                         STRLENOF( SYNCDATASTR "=" ) ) )
3963                 {
3964                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3965                         si->si_syncdata = verb_to_mask( val, datamodes );
3966                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3967                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3968                                 "Error: parse_syncrepl_line: "
3969                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3970                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3971                         return -1;
3972                 }
3973         }
3974
3975         if ( gots != GOT_ALL ) {
3976                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3977                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3978                         gots & GOT_ID ? "" : " "IDSTR,
3979                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3980                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3981                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3982                 return -1;
3983         }
3984
3985         return 0;
3986 }
3987
3988 static int
3989 add_syncrepl(
3990         ConfigArgs *c )
3991 {
3992         syncinfo_t *si;
3993         int     rc = 0;
3994
3995         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3996                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3997                         "operations required for syncrepl", c->be->be_type );
3998                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3999                 return 1;
4000         }
4001         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4002                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4003                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4004                 return 1;
4005         }
4006         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4007
4008         if ( si == NULL ) {
4009                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4010                 return 1;
4011         }
4012
4013         si->si_bindconf.sb_tls = SB_TLS_OFF;
4014         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4015         si->si_schemachecking = 0;
4016         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4017                 &si->si_filterstr );
4018         si->si_base.bv_val = NULL;
4019         si->si_scope = LDAP_SCOPE_SUBTREE;
4020         si->si_attrsonly = 0;
4021         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4022         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4023         si->si_attrs = NULL;
4024         si->si_allattrs = 0;
4025         si->si_allopattrs = 0;
4026         si->si_exattrs = NULL;
4027         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4028         si->si_interval = 86400;
4029         si->si_retryinterval = NULL;
4030         si->si_retrynum_init = NULL;
4031         si->si_retrynum = NULL;
4032         si->si_manageDSAit = 0;
4033         si->si_tlimit = 0;
4034         si->si_slimit = 0;
4035
4036         si->si_presentlist = NULL;
4037         LDAP_LIST_INIT( &si->si_nonpresentlist );
4038         ldap_pvt_thread_mutex_init( &si->si_mutex );
4039
4040         rc = parse_syncrepl_line( c, si );
4041
4042         if ( rc == 0 ) {
4043                 /* Must be LDAPv3 because we need controls */
4044                 switch ( si->si_bindconf.sb_version ) {
4045                 case 0:
4046                         /* not explicitly set */
4047                         si->si_bindconf.sb_version = LDAP_VERSION3;
4048                         break;
4049                 case 3:
4050                         /* explicitly set */
4051                         break;
4052                 default:
4053                         Debug( LDAP_DEBUG_ANY,
4054                                 "version %d incompatible with syncrepl\n",
4055                                 si->si_bindconf.sb_version, 0, 0 );
4056                         syncinfo_free( si, 0 );
4057                         return 1;
4058                 }
4059
4060                 si->si_be = c->be;
4061                 if ( slapMode & SLAP_SERVER_MODE ) {
4062                         Listener **l = slapd_get_listeners();
4063                         int isMe = 0;
4064
4065                         /* check if URL points to current server. If so, ignore
4066                          * this configuration. We require an exact match. Just
4067                          * in case they really want to do this, they can vary
4068                          * the case of the URL to allow it.
4069                          */
4070                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4071                                 int i;
4072                                 for ( i=0; l[i]; i++ ) {
4073                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4074                                                 isMe = 1;
4075                                                 break;
4076                                         }
4077                                 }
4078                         }
4079
4080                         if ( !isMe ) {
4081                                 init_syncrepl( si );
4082                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4083                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4084                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4085                                         si->si_ridtxt );
4086                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4087                                 if ( si->si_re )
4088                                         rc = config_sync_shadow( c ) ? -1 : 0;
4089                                 else
4090                                         rc = -1;
4091                         }
4092                 } else {
4093                         /* mirrormode still needs to see this flag in tool mode */
4094                         rc = config_sync_shadow( c ) ? -1 : 0;
4095                 }
4096         }
4097
4098 #ifdef HAVE_TLS
4099         /* Use main slapd defaults */
4100         bindconf_tls_defaults( &si->si_bindconf );
4101 #endif
4102         if ( rc < 0 ) {
4103                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4104                 syncinfo_free( si, 0 );
4105                 return 1;
4106         } else {
4107                 Debug( LDAP_DEBUG_CONFIG,
4108                         "Config: ** successfully added syncrepl \"%s\"\n",
4109                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4110                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4111                 if ( c->be->be_syncinfo ) {
4112                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4113                 } else {
4114                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4115                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4116                 }
4117                 si->si_next = c->be->be_syncinfo;
4118                 c->be->be_syncinfo = si;
4119                 return 0;
4120         }
4121 }
4122
4123 static void
4124 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4125 {
4126         struct berval bc, uri;
4127         char buf[BUFSIZ*2], *ptr;
4128         ber_len_t len;
4129         int i;
4130 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4131
4132         BER_BVZERO( bv );
4133
4134         /* temporarily inhibit bindconf from printing URI */
4135         uri = si->si_bindconf.sb_uri;
4136         BER_BVZERO( &si->si_bindconf.sb_uri );
4137         si->si_bindconf.sb_version = 0;
4138         bindconf_unparse( &si->si_bindconf, &bc );
4139         si->si_bindconf.sb_uri = uri;
4140         si->si_bindconf.sb_version = LDAP_VERSION3;
4141
4142         ptr = buf;
4143         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4144         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4145                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4146         if ( len >= sizeof( buf ) ) return;
4147         ptr += len;
4148         if ( !BER_BVISNULL( &bc ) ) {
4149                 if ( WHATSLEFT <= bc.bv_len ) {
4150                         free( bc.bv_val );
4151                         return;
4152                 }
4153                 ptr = lutil_strcopy( ptr, bc.bv_val );
4154                 free( bc.bv_val );
4155         }
4156         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4157                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4158                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4159                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4160                 *ptr++ = '"';
4161         }
4162         if ( !BER_BVISNULL( &si->si_base ) ) {
4163                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4164                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4165                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4166                 *ptr++ = '"';
4167         }
4168         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4169                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4170                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4171                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4172                 *ptr++ = '"';
4173         }
4174         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4175                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4176                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4177                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4178                 *ptr++ = '"';
4179         }
4180         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4181                 if ( si->si_scope == scopes[i].val ) {
4182                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4183                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4184                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4185                         break;
4186                 }
4187         }
4188         if ( si->si_attrsonly ) {
4189                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4190                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4191         }
4192         if ( si->si_anfile ) {
4193                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4194                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4195                 ptr = lutil_strcopy( ptr, si->si_anfile );
4196                 *ptr++ = '"';
4197         } else if ( si->si_allattrs || si->si_allopattrs ||
4198                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4199         {
4200                 char *old;
4201
4202                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4203                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4204                 old = ptr;
4205                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4206                 if ( ptr == NULL ) return;
4207                 if ( si->si_allattrs ) {
4208                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4209                         if ( old != ptr ) *ptr++ = ',';
4210                         *ptr++ = '*';
4211                 }
4212                 if ( si->si_allopattrs ) {
4213                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4214                         if ( old != ptr ) *ptr++ = ',';
4215                         *ptr++ = '+';
4216                 }
4217                 *ptr++ = '"';
4218         }
4219         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4220                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4221                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4222                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4223                 if ( ptr == NULL ) return;
4224         }
4225         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4226         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4227         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4228
4229         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4230         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4231         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4232                 "refreshAndPersist" : "refreshOnly" );
4233
4234         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4235                 int dd, hh, mm, ss;
4236
4237                 dd = si->si_interval;
4238                 ss = dd % 60;
4239                 dd /= 60;
4240                 mm = dd % 60;
4241                 dd /= 60;
4242                 hh = dd % 24;
4243                 dd /= 24;
4244                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4245                         INTERVALSTR, dd, hh, mm, ss );
4246                 if ( len >= WHATSLEFT ) return;
4247                 ptr += len;
4248         } else if ( si->si_retryinterval ) {
4249                 const char *space = "";
4250                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4251                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4252                 for (i=0; si->si_retryinterval[i]; i++) {
4253                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4254                                 (long) si->si_retryinterval[i] );
4255                         space = " ";
4256                         if ( WHATSLEFT - 1 <= len ) return;
4257                         ptr += len;
4258                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4259                                 *ptr++ = '+';
4260                         else {
4261                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4262                                 if ( WHATSLEFT <= len ) return;
4263                                 ptr += len;
4264                         }
4265                 }
4266                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4267                 *ptr++ = '"';
4268         }
4269
4270         if ( si->si_slimit ) {
4271                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4272                 if ( WHATSLEFT <= len ) return;
4273                 ptr += len;
4274         }
4275
4276         if ( si->si_tlimit ) {
4277                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4278                 if ( WHATSLEFT <= len ) return;
4279                 ptr += len;
4280         }
4281
4282         if ( si->si_syncdata ) {
4283                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4284                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4285                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4286                         ptr = lutil_strcopy( ptr, bc.bv_val );
4287                 }
4288         }
4289         bc.bv_len = ptr - buf;
4290         bc.bv_val = buf;
4291         ber_dupbv( bv, &bc );
4292 }
4293
4294 int
4295 syncrepl_config( ConfigArgs *c )
4296 {
4297         if (c->op == SLAP_CONFIG_EMIT) {
4298                 if ( c->be->be_syncinfo ) {
4299                         struct berval bv;
4300                         syncinfo_t *si;
4301
4302                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4303                                 syncrepl_unparse( si, &bv );
4304                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4305                         }
4306                         return 0;
4307                 }
4308                 return 1;
4309         } else if ( c->op == LDAP_MOD_DELETE ) {
4310                 cookie_state *cs = NULL;
4311                 if ( c->be->be_syncinfo ) {
4312                         syncinfo_t *si, **sip;
4313                         int i;
4314
4315                         cs = c->be->be_syncinfo->si_cookieState;
4316                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4317                                 si = *sip;
4318                                 if ( c->valx == -1 || i == c->valx ) {
4319                                         int isrunning = 0;
4320                                         *sip = si->si_next;
4321                                         /* If the task is currently active, we have to leave
4322                                          * it running. It will exit on its own. This will only
4323                                          * happen when running on the cn=config DB.
4324                                          */
4325                                         if ( si->si_re ) {
4326                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4327                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4328                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4329                                         }
4330                                         if ( si->si_re && isrunning ) {
4331                                                 si->si_ctype = 0;
4332                                         } else {
4333                                                 syncinfo_free( si, 0 );
4334                                         }
4335                                         if ( i == c->valx )
4336                                                 break;
4337                                 } else {
4338                                         sip = &si->si_next;
4339                                 }
4340                         }
4341                 }
4342                 if ( !c->be->be_syncinfo ) {
4343                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4344                         if ( cs ) {
4345                                 ber_bvarray_free( cs->cs_vals );
4346                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4347                                 ch_free( cs );
4348                         }
4349                 }
4350                 return 0;
4351         }
4352         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4353                 Debug(LDAP_DEBUG_ANY, "%s: "
4354                         "syncrepl: database already shadowed.\n",
4355                         c->log, 0, 0);
4356                 return(1);
4357         } else {
4358                 return add_syncrepl( c );
4359         }
4360 }