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 2003-2008 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
 727         BerElementBuffer berbuf;
 728         BerElement      *ber = (BerElement *)&berbuf;
 729
 730         LDAPMessage     *msg = NULL;
 731
 732         char            *retoid = NULL;
 733         struct berval   *retdata = NULL;
 734
 735         Entry           *entry = NULL;
 736
 737         int             syncstate;
 738         struct berval   syncUUID = BER_BVNULL;
 739         struct sync_cookie      syncCookie = { NULL };
 740         struct sync_cookie      syncCookie_req = { NULL };
 741         struct berval           cookie = BER_BVNULL;
 742
 743         int             rc,
 744                         err = LDAP_SUCCESS;
 745         ber_len_t       len;
 746
 747         struct berval   *psub;
 748         Modifications   *modlist = NULL;
 749
 750         int                             match, m;
 751
 752         struct timeval *tout_p = NULL;
 753         struct timeval tout = { 0, 0 };
 754
 755         int             refreshDeletes = 0;
 756         BerVarray syncUUIDs = NULL;
 757         ber_tag_t si_tag;
 758
 759         if ( slapd_shutdown ) {
 760                 rc = -2;
 761                 goto done;
 762         }
 763
 764         ber_init2( ber, NULL, LBER_USE_DER );
 765         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 766
 767         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 768
 769         psub = &si->si_be->be_nsuffix[0];
 770
 771         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 772
 773         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 774                 tout_p = &tout;
 775         } else {
 776                 tout_p = NULL;
 777         }
 778
 779         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 780                 tout_p, &msg ) ) > 0 )
 781         {
 782                 LDAPControl     *rctrlp = NULL;
 783
 784                 if ( slapd_shutdown ) {
 785                         rc = -2;
 786                         goto done;
 787                 }
 788                 switch( ldap_msgtype( msg ) ) {
 789                 case LDAP_RES_SEARCH_ENTRY:
 790                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 791                         /* we can't work without the control */
 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                                 /* NOTE: since we issue the search request,
 798                                  * we should know what controls to expect,
 799                                  * and there should be none apart from the
 800                                  * sync-related control */
 801                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 802                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 803                                 {
 804                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 805                                                 "got search entry with multiple "
 806                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 807                                         ldap_controls_free( rctrls );
 808                                         rc = -1;
 809                                         goto done;
 810                                 }
 811                         }
 812                         if ( rctrlp == NULL ) {
 813                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 814                                         "got search entry without "
 815                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 816                                 rc = -1;
 817                                 goto done;
 818                         }
 819                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 820                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 821                         /* FIXME: what if syncUUID is NULL or empty?
 822                          * (happens with back-sql...) */
 823                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 824                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 825                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 826                                         si->si_ridtxt,
 827                                         syncrepl_state2str( syncstate ), 0 );
 828                                 ldap_controls_free( rctrls );
 829                                 rc = -1;
 830                                 goto done;
 831                         }
 832                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 833                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 834
 835                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 836                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 837
 838                                 if ( !BER_BVISNULL( &cookie ) ) {
 839                                         ch_free( syncCookie.octet_str.bv_val );
 840                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 841                                 }
 842                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 843                                 {
 844                                         slap_parse_sync_cookie( &syncCookie, NULL );
 845                                         if ( syncCookie.ctxcsn ) {
 846                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 847                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 848                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 849                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 850                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 851                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 852                                                                 ldap_controls_free( rctrls );
 853                                                                 rc = 0;
 854                                                                 goto done;
 855                                                         }
 856                                                 }
 857                                         }
 858                                 }
 859                         }
 860                         rc = 0;
 861                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 862                                 modlist = NULL;
 863                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 864                                         syncCookie.ctxcsn )
 865                                 {
 866                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 867                                 } else switch ( rc ) {
 868                                         case LDAP_ALREADY_EXISTS:
 869                                         case LDAP_NO_SUCH_OBJECT:
 870                                         case LDAP_NO_SUCH_ATTRIBUTE:
 871                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 872                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 873                                                 si->si_logstate = SYNCLOG_FALLBACK;
 874                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 875                                                 break;
 876                                         default:
 877                                                 break;
 878                                 }
 879                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 880                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 881                         {
 882                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 883                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 884                                         syncCookie.ctxcsn )
 885                                 {
 886                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 887                                 }
 888                         }
 889                         ldap_controls_free( rctrls );
 890                         if ( modlist ) {
 891                                 slap_mods_free( modlist, 1 );
 892                         }
 893                         if ( rc )
 894                                 goto done;
 895                         break;
 896
 897                 case LDAP_RES_SEARCH_REFERENCE:
 898                         Debug( LDAP_DEBUG_ANY,
 899                                 "do_syncrep2: %s reference received error\n",
 900                                 si->si_ridtxt, 0, 0 );
 901                         break;
 902
 903                 case LDAP_RES_SEARCH_RESULT:
 904                         Debug( LDAP_DEBUG_SYNC,
 905                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 906                                 si->si_ridtxt, 0, 0 );
 907                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 908                                 &rctrls, 0 );
 909 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 910                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 911                                 /* map old result code to registered code */
 912                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 913                         }
 914 #endif
 915                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 916                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 917                                         si->si_logstate = SYNCLOG_FALLBACK;
 918                                 }
 919                                 rc = err;
 920                                 goto done;
 921                         }
 922                         if ( err ) {
 923                                 Debug( LDAP_DEBUG_ANY,
 924                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 925                                         si->si_ridtxt, err, ldap_err2string( err ) );
 926                         }
 927                         if ( rctrls ) {
 928                                 LDAPControl **next;
 929                                 /* NOTE: make sure we use the right one;
 930                                  * a better approach would be to run thru
 931                                  * the whole list and take care of all */
 932                                 /* NOTE: since we issue the search request,
 933                                  * we should know what controls to expect,
 934                                  * and there should be none apart from the
 935                                  * sync-related control */
 936                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 937                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 938                                 {
 939                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 940                                                 "got search result with multiple "
 941                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 942                                         ldap_controls_free( rctrls );
 943                                         rc = -1;
 944                                         goto done;
 945                                 }
 946                         }
 947                         if ( rctrlp ) {
 948                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 949
 950                                 ber_scanf( ber, "{" /*"}"*/);
 951                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 952                                         ber_scanf( ber, "m", &cookie );
 953
 954                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 955                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 956
 957                                         if ( !BER_BVISNULL( &cookie ) ) {
 958                                                 ch_free( syncCookie.octet_str.bv_val );
 959                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 960                                         }
 961                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 962                                         {
 963                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 964                                         }
 965                                 }
 966                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 967                                 {
 968                                         ber_scanf( ber, "b", &refreshDeletes );
 969                                 }
 970                                 ber_scanf( ber, /*"{"*/ "}" );
 971                         }
 972                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 973                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 974                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 975                         }
 976                         if ( !syncCookie.ctxcsn ) {
 977                                 match = 1;
 978                         } else if ( !syncCookie_req.ctxcsn ) {
 979                                 match = -1;
 980                                 m = 0;
 981                         } else {
 982                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 983                         }
 984                         if ( rctrls ) {
 985                                 ldap_controls_free( rctrls );
 986                         }
 987                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 988                                 /* FIXME : different error behaviors according to
 989                                  *      1) err code : LDAP_BUSY ...
 990                                  *      2) on err policy : stop service, stop sync, retry
 991                                  */
 992                                 if ( refreshDeletes == 0 && match < 0 &&
 993                                         err == LDAP_SUCCESS &&
 994                                         syncCookie_req.numcsns == syncCookie.numcsns )
 995                                 {
 996                                         syncrepl_del_nonpresent( op, si, NULL,
 997                                                 &syncCookie, m );
 998                                 } else {
 999                                         avl_free( si->si_presentlist, ch_free );
1000                                         si->si_presentlist = NULL;
1001                                 }
1002                         }
1003                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1004                         {
1005                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1006                         }
1007                         if ( err == LDAP_SUCCESS
1008                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1009                                 si->si_logstate = SYNCLOG_LOGGING;
1010                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1011                         } else {
1012                                 rc = -2;
1013                         }
1014                         goto done;
1015                         break;
1016
1017                 case LDAP_RES_INTERMEDIATE:
1018                         rc = ldap_parse_intermediate( si->si_ld, msg,
1019                                 &retoid, &retdata, NULL, 0 );
1020                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1021                                 ber_init2( ber, retdata, LBER_USE_DER );
1022
1023                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1024                                 ber_tag_t tag;
1025                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1026                                         Debug( LDAP_DEBUG_SYNC,
1027                                                 "do_syncrep2: %s %s - %s\n",
1028                                                 si->si_ridtxt,
1029                                                 "LDAP_RES_INTERMEDIATE",
1030                                                 "NEW_COOKIE" );
1031                                         ber_scanf( ber, "tm", &tag, &cookie );
1032                                         break;
1033                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1034                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1035                                         Debug( LDAP_DEBUG_SYNC,
1036                                                 "do_syncrep2: %s %s - %s\n",
1037                                                 si->si_ridtxt,
1038                                                 "LDAP_RES_INTERMEDIATE",
1039                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1040                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1041                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1042                                                 si->si_refreshDelete = 1;
1043                                         } else {
1044                                                 si->si_refreshPresent = 1;
1045                                         }
1046                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1047                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1048                                         {
1049                                                 ber_scanf( ber, "m", &cookie );
1050
1051                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1052                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1053
1054                                                 if ( !BER_BVISNULL( &cookie ) ) {
1055                                                         ch_free( syncCookie.octet_str.bv_val );
1056                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1057                                                 }
1058                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1059                                                 {
1060                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1061                                                 }
1062                                         }
1063                                         /* Defaults to TRUE */
1064                                         if ( ber_peek_tag( ber, &len ) ==
1065                                                 LDAP_TAG_REFRESHDONE )
1066                                         {
1067                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1068                                         } else
1069                                         {
1070                                                 si->si_refreshDone = 1;
1071                                         }
1072                                         ber_scanf( ber, /*"{"*/ "}" );
1073                                         break;
1074                                 case LDAP_TAG_SYNC_ID_SET:
1075                                         Debug( LDAP_DEBUG_SYNC,
1076                                                 "do_syncrep2: %s %s - %s\n",
1077                                                 si->si_ridtxt,
1078                                                 "LDAP_RES_INTERMEDIATE",
1079                                                 "SYNC_ID_SET" );
1080                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1081                                         if ( ber_peek_tag( ber, &len ) ==
1082                                                 LDAP_TAG_SYNC_COOKIE )
1083                                         {
1084                                                 ber_scanf( ber, "m", &cookie );
1085
1086                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1087                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1088
1089                                                 if ( !BER_BVISNULL( &cookie ) ) {
1090                                                         ch_free( syncCookie.octet_str.bv_val );
1091                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1092                                                 }
1093                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1094                                                 {
1095                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1096                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1097                                                 }
1098                                         }
1099                                         if ( ber_peek_tag( ber, &len ) ==
1100                                                 LDAP_TAG_REFRESHDELETES )
1101                                         {
1102                                                 ber_scanf( ber, "b", &refreshDeletes );
1103                                         }
1104                                         ber_scanf( ber, "[W]", &syncUUIDs );
1105                                         ber_scanf( ber, /*"{"*/ "}" );
1106                                         if ( refreshDeletes ) {
1107                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1108                                                         &syncCookie, m );
1109                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1110                                         } else {
1111                                                 int i;
1112                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1113                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1114                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1115                                                 }
1116                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1117                                         }
1118                                         slap_sync_cookie_free( &syncCookie, 0 );
1119                                         break;
1120                                 default:
1121                                         Debug( LDAP_DEBUG_ANY,
1122                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1123                                                 si->si_ridtxt, (long) si_tag, 0 );
1124                                         ldap_memfree( retoid );
1125                                         ber_bvfree( retdata );
1126                                         continue;
1127                                 }
1128
1129                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1130                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1131                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1132                                 }
1133                                 if ( !syncCookie.ctxcsn ) {
1134                                         match = 1;
1135                                 } else if ( !syncCookie_req.ctxcsn ) {
1136                                         match = -1;
1137                                         m = 0;
1138                                 } else {
1139                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1140                                 }
1141
1142                                 if ( match < 0 ) {
1143                                         if ( si->si_refreshPresent == 1 &&
1144                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1145                                                 syncrepl_del_nonpresent( op, si, NULL,
1146                                                         &syncCookie, m );
1147                                         }
1148
1149                                         if ( syncCookie.ctxcsn )
1150                                         {
1151                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1152                                         }
1153                                 }
1154
1155                                 ldap_memfree( retoid );
1156                                 ber_bvfree( retdata );
1157                                 break;
1158
1159                         } else {
1160                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1161                                         "unknown intermediate response (%d)\n",
1162                                         si->si_ridtxt, rc, 0 );
1163                                 ldap_memfree( retoid );
1164                                 ber_bvfree( retdata );
1165                                 break;
1166                         }
1167                         break;
1168
1169                 default:
1170                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1171                                 "unknown message (0x%02lx)\n",
1172                                 si->si_ridtxt,
1173                                 (unsigned long)ldap_msgtype( msg ), 0 );
1174                         break;
1175
1176                 }
1177                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1178                         slap_sync_cookie_free( &syncCookie_req, 0 );
1179                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1180                         slap_sync_cookie_free( &syncCookie, 0 );
1181                 }
1182                 ldap_msgfree( msg );
1183                 msg = NULL;
1184                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1185                         slap_sync_cookie_free( &syncCookie, 0 );
1186                         slap_sync_cookie_free( &syncCookie_req, 0 );
1187                         return SYNC_PAUSED;
1188                 }
1189         }
1190
1191         if ( rc == -1 ) {
1192                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1193                 err = rc;
1194         }
1195
1196 done:
1197         if ( err != LDAP_SUCCESS ) {
1198                 Debug( LDAP_DEBUG_ANY,
1199                         "do_syncrep2: %s (%d) %s\n",
1200                         si->si_ridtxt, err, ldap_err2string( err ) );
1201         }
1202
1203         slap_sync_cookie_free( &syncCookie, 0 );
1204         slap_sync_cookie_free( &syncCookie_req, 0 );
1205
1206         if ( msg ) ldap_msgfree( msg );
1207
1208         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1209                 if ( si->si_conn ) {
1210                         connection_client_stop( si->si_conn );
1211                         si->si_conn = NULL;
1212                 }
1213                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1214                 si->si_ld = NULL;
1215         }
1216
1217         return rc;
1218 }
1219
1220 static void *
1221 do_syncrepl(
1222         void    *ctx,
1223         void    *arg )
1224 {
1225         struct re_s* rtask = arg;
1226         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1227         Connection conn = {0};
1228         OperationBuffer opbuf;
1229         Operation *op;
1230         int rc = LDAP_SUCCESS;
1231         int dostop = 0;
1232         ber_socket_t s;
1233         int i, defer = 1, fail = 0;
1234         Backend *be;
1235
1236         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1237
1238         if ( si == NULL )
1239                 return NULL;
1240
1241         /* There will never be more than one instance active */
1242         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1243
1244         switch( abs( si->si_type ) ) {
1245         case LDAP_SYNC_REFRESH_ONLY:
1246         case LDAP_SYNC_REFRESH_AND_PERSIST:
1247                 break;
1248         default:
1249                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1250                 return NULL;
1251         }
1252
1253         if ( slapd_shutdown ) {
1254                 if ( si->si_ld ) {
1255                         if ( si->si_conn ) {
1256                                 connection_client_stop( si->si_conn );
1257                                 si->si_conn = NULL;
1258                         }
1259                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1260                         si->si_ld = NULL;
1261                 }
1262                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1263                 return NULL;
1264         }
1265
1266         connection_fake_init( &conn, &opbuf, ctx );
1267         op = &opbuf.ob_op;
1268
1269         /* use global malloc for now */
1270         op->o_tmpmemctx = NULL;
1271         op->o_tmpmfuncs = &ch_mfuncs;
1272
1273         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1274         be = si->si_be;
1275
1276         /* Coordinate contextCSN updates with any syncprov overlays
1277          * in use. This may be complicated by the use of the glue
1278          * overlay.
1279          *
1280          * Typically there is a single syncprov mastering the entire
1281          * glued tree. In that case, our contextCSN updates should
1282          * go to the master DB. But if there is no syncprov on the
1283          * master DB, then nothing special is needed here.
1284          *
1285          * Alternatively, there may be individual syncprov overlays
1286          * on each glued branch. In that case, each syncprov only
1287          * knows about changes within its own branch. And so our
1288          * contextCSN updates should only go to the local DB.
1289          */
1290         if ( !si->si_wbe ) {
1291                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1292                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1293                         if ( overlay_is_inst( top_be, "syncprov" ))
1294                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1295                         else
1296                                 si->si_wbe = be;
1297                 } else {
1298                         si->si_wbe = be;
1299                 }
1300         }
1301         if ( !si->si_schemachecking )
1302                 op->o_no_schema_check = 1;
1303
1304         /* Establish session, do search */
1305         if ( !si->si_ld ) {
1306                 si->si_refreshDelete = 0;
1307                 si->si_refreshPresent = 0;
1308
1309                 /* use main DB when retrieving contextCSN */
1310                 op->o_bd = si->si_wbe;
1311                 op->o_dn = op->o_bd->be_rootdn;
1312                 op->o_ndn = op->o_bd->be_rootndn;
1313                 rc = do_syncrep1( op, si );
1314         }
1315
1316 reload:
1317         /* Process results */
1318         if ( rc == LDAP_SUCCESS ) {
1319                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1320
1321                 /* use current DB */
1322                 op->o_bd = be;
1323                 op->o_dn = op->o_bd->be_rootdn;
1324                 op->o_ndn = op->o_bd->be_rootndn;
1325                 rc = do_syncrep2( op, si );
1326                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1327                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1328                         goto reload;
1329                 }
1330
1331                 /* We got deleted while running on cn=config */
1332                 if ( !si->si_ctype ) {
1333                         if ( si->si_conn )
1334                                 dostop = 1;
1335                         rc = -1;
1336                 }
1337
1338                 if ( rc != SYNC_PAUSED ) {
1339                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1340                                 /* If we succeeded, enable the connection for further listening.
1341                                  * If we failed, tear down the connection and reschedule.
1342                                  */
1343                                 if ( rc == LDAP_SUCCESS ) {
1344                                         if ( si->si_conn ) {
1345                                                 connection_client_enable( si->si_conn );
1346                                         } else {
1347                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1348                                         }
1349                                 } else if ( si->si_conn ) {
1350                                         dostop = 1;
1351                                 }
1352                         } else {
1353                                 if ( rc == -2 ) rc = 0;
1354                         }
1355                 }
1356         }
1357
1358         /* At this point, we have 5 cases:
1359          * 1) for any hard failure, give up and remove this task
1360          * 2) for ServerDown, reschedule this task to run later
1361          * 3) for threadpool pause, reschedule to run immediately
1362          * 4) for Refresh and Success, reschedule to run
1363          * 5) for Persist and Success, reschedule to defer
1364          */
1365         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1366
1367         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1368                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1369         }
1370
1371         if ( dostop ) {
1372                 connection_client_stop( si->si_conn );
1373                 si->si_conn = NULL;
1374         }
1375
1376         if ( rc == SYNC_PAUSED ) {
1377                 rtask->interval.tv_sec = 0;
1378                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1379                 rtask->interval.tv_sec = si->si_interval;
1380                 rc = 0;
1381         } else if ( rc == LDAP_SUCCESS ) {
1382                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1383                         defer = 0;
1384                 }
1385                 rtask->interval.tv_sec = si->si_interval;
1386                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1387                 if ( si->si_retrynum ) {
1388                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1389                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1390                         }
1391                         si->si_retrynum[i] = RETRYNUM_TAIL;
1392                 }
1393         } else {
1394                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1395                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1396                                 break;
1397                 }
1398
1399                 if ( !si->si_ctype
1400                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1401                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1402                         fail = RETRYNUM_TAIL;
1403                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1404                         if ( si->si_retrynum[i] > 0 )
1405                                 si->si_retrynum[i]--;
1406                         fail = si->si_retrynum[i];
1407                         rtask->interval.tv_sec = si->si_retryinterval[i];
1408                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1409                         slap_wake_listener();
1410                 }
1411         }
1412
1413         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1414         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1415
1416         if ( rc ) {
1417                 if ( fail == RETRYNUM_TAIL ) {
1418                         Debug( LDAP_DEBUG_ANY,
1419                                 "do_syncrepl: %s quitting\n",
1420                                 si->si_ridtxt, 0, 0 );
1421                 } else if ( fail > 0 ) {
1422                         Debug( LDAP_DEBUG_ANY,
1423                                 "do_syncrepl: %s retrying (%d retries left)\n",
1424                                 si->si_ridtxt, fail, 0 );
1425                 } else {
1426                         Debug( LDAP_DEBUG_ANY,
1427                                 "do_syncrepl: %s retrying\n",
1428                                 si->si_ridtxt, 0, 0 );
1429                 }
1430         }
1431
1432         /* Do final delete cleanup */
1433         if ( !si->si_ctype ) {
1434                 cookie_state *cs = NULL;
1435                 syncinfo_t **sip;
1436
1437                 cs = be->be_syncinfo->si_cookieState;
1438                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1439                 *sip = si->si_next;
1440                 syncinfo_free( si, 0 );
1441                 if ( !be->be_syncinfo ) {
1442                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1443                         if ( cs ) {
1444                                 ch_free( cs->cs_sids );
1445                                 ber_bvarray_free( cs->cs_vals );
1446                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1447                                 ch_free( cs );
1448                         }
1449                 }
1450         }
1451         return NULL;
1452 }
1453
1454 static slap_verbmasks modops[] = {
1455         { BER_BVC("add"), LDAP_REQ_ADD },
1456         { BER_BVC("delete"), LDAP_REQ_DELETE },
1457         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1458         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1459         { BER_BVNULL, 0 }
1460 };
1461
1462 static Modifications *
1463 syncrepl_accesslog_mods(
1464         syncinfo_t *si,
1465         struct berval *vals
1466 )
1467 {
1468         char *colon;
1469         const char *text;
1470         AttributeDescription *ad;
1471         struct berval bv, bv2;
1472         short op;
1473         Modifications *mod = NULL, *modlist = NULL, **modtail;
1474         int i;
1475
1476         modtail = &modlist;
1477
1478         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1479                 ad = NULL;
1480                 bv = vals[i];
1481
1482                 colon = ber_bvchr( &bv, ':' );
1483                 if ( !colon ) {
1484                         /* Invalid */
1485                         continue;
1486                 }
1487
1488                 bv.bv_len = colon - bv.bv_val;
1489                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1490                         /* Invalid */
1491                         continue;
1492                 }
1493
1494                 /* Ignore dynamically generated attrs */
1495                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1496                         continue;
1497                 }
1498
1499                 /* Ignore excluded attrs */
1500                 if ( ldap_charray_inlist( si->si_exattrs,
1501                         ad->ad_type->sat_cname.bv_val ) )
1502                 {
1503                         continue;
1504                 }
1505
1506                 switch(colon[1]) {
1507                 case '+':       op = LDAP_MOD_ADD; break;
1508                 case '-':       op = LDAP_MOD_DELETE; break;
1509                 case '=':       op = LDAP_MOD_REPLACE; break;
1510                 case '#':       op = LDAP_MOD_INCREMENT; break;
1511                 default:        continue;
1512                 }
1513
1514                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1515                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1516                         mod->sml_flags = 0;
1517                         mod->sml_op = op;
1518                         mod->sml_next = NULL;
1519                         mod->sml_desc = ad;
1520                         mod->sml_type = ad->ad_cname;
1521                         mod->sml_values = NULL;
1522                         mod->sml_nvalues = NULL;
1523                         mod->sml_numvals = 0;
1524
1525                         *modtail = mod;
1526                         modtail = &mod->sml_next;
1527                 }
1528                 if ( colon[2] == ' ' ) {
1529                         bv.bv_val = colon + 3;
1530                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1531                         ber_dupbv( &bv2, &bv );
1532                         ber_bvarray_add( &mod->sml_values, &bv2 );
1533                         mod->sml_numvals++;
1534                 }
1535         }
1536         return modlist;
1537 }
1538
1539 static Modifications *
1540 syncrepl_changelog_mods(
1541         syncinfo_t *si,
1542         struct berval *vals
1543 )
1544 {
1545         return NULL;    /* FIXME */
1546 }
1547
1548 static int
1549 syncrepl_message_to_op(
1550         syncinfo_t      *si,
1551         Operation       *op,
1552         LDAPMessage     *msg
1553 )
1554 {
1555         BerElement      *ber = NULL;
1556         Modifications   *modlist = NULL;
1557         logschema *ls;
1558         SlapReply rs = { REP_RESULT };
1559         slap_callback cb = { NULL, null_callback, NULL, NULL };
1560
1561         const char      *text;
1562         char txtbuf[SLAP_TEXT_BUFLEN];
1563         size_t textlen = sizeof txtbuf;
1564
1565         struct berval   bdn, dn = BER_BVNULL, ndn;
1566         struct berval   bv, *bvals = NULL;
1567         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1568                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1569                 psup = BER_BVNULL, nsup = BER_BVNULL;
1570         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1571
1572         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1573                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1574                         "Message type should be entry (%d)",
1575                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1576                 return -1;
1577         }
1578
1579         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1580                 ls = &accesslog_sc;
1581         else
1582                 ls = &changelog_sc;
1583
1584         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1585
1586         if ( rc != LDAP_SUCCESS ) {
1587                 Debug( LDAP_DEBUG_ANY,
1588                         "syncrepl_message_to_op: %s dn get failed (%d)",
1589                         si->si_ridtxt, rc, 0 );
1590                 return rc;
1591         }
1592
1593         op->o_tag = LBER_DEFAULT;
1594         op->o_bd = si->si_wbe;
1595
1596         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1597                 == LDAP_SUCCESS ) {
1598                 if ( bv.bv_val == NULL )
1599                         break;
1600
1601                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1602                         bdn = bvals[0];
1603                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1604                         ber_dupbv( &op->o_req_dn, &dn );
1605                         ber_dupbv( &op->o_req_ndn, &ndn );
1606                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1607                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1608                         freeReqDn = 1;
1609                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1610                         int i = verb_to_mask( bvals[0].bv_val, modops );
1611                         if ( i < 0 ) {
1612                                 Debug( LDAP_DEBUG_ANY,
1613                                         "syncrepl_message_to_op: %s unknown op %s",
1614                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1615                                 ch_free( bvals );
1616                                 rc = -1;
1617                                 goto done;
1618                         }
1619                         op->o_tag = modops[i].mask;
1620                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1621                         /* Parse attribute into modlist */
1622                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1623                                 modlist = syncrepl_accesslog_mods( si, bvals );
1624                         } else {
1625                                 modlist = syncrepl_changelog_mods( si, bvals );
1626                         }
1627                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1628                         rdn = bvals[0];
1629                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1630                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1631                                 deleteOldRdn = 1;
1632                         }
1633                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1634                         sup = bvals[0];
1635                 } else if ( !ber_bvstrcasecmp( &bv,
1636                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1637                 {
1638                         slap_queue_csn( op, bvals );
1639                 }
1640                 ch_free( bvals );
1641         }
1642
1643         /* If we didn't get a mod type or a target DN, bail out */
1644         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1645                 rc = -1;
1646                 goto done;
1647         }
1648
1649         op->o_callback = &cb;
1650         slap_op_time( &op->o_time, &op->o_tincr );
1651
1652         switch( op->o_tag ) {
1653         case LDAP_REQ_ADD:
1654         case LDAP_REQ_MODIFY:
1655                 /* If we didn't get required data, bail */
1656                 if ( !modlist ) goto done;
1657
1658                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1659
1660                 if ( rc != LDAP_SUCCESS ) {
1661                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1662                                 "mods check (%s)\n",
1663                                 si->si_ridtxt, text, 0 );
1664                         goto done;
1665                 }
1666
1667                 if ( op->o_tag == LDAP_REQ_ADD ) {
1668                         Entry *e = entry_alloc();
1669                         op->ora_e = e;
1670                         op->ora_e->e_name = op->o_req_dn;
1671                         op->ora_e->e_nname = op->o_req_ndn;
1672                         freeReqDn = 0;
1673                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1674                         if( rc != LDAP_SUCCESS ) {
1675                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1676                                 "mods2entry (%s)\n",
1677                                         si->si_ridtxt, text, 0 );
1678                         } else {
1679                                 rc = op->o_bd->be_add( op, &rs );
1680                                 Debug( LDAP_DEBUG_SYNC,
1681                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1682                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1683                         }
1684                         if ( e == op->ora_e )
1685                                 be_entry_release_w( op, op->ora_e );
1686                 } else {
1687                         op->orm_modlist = modlist;
1688                         op->o_bd = si->si_wbe;
1689                         rc = op->o_bd->be_modify( op, &rs );
1690                         modlist = op->orm_modlist;
1691                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1692                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1693                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1694                         op->o_bd = si->si_be;
1695                 }
1696                 break;
1697         case LDAP_REQ_MODRDN:
1698                 if ( BER_BVISNULL( &rdn ) ) goto done;
1699
1700                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1701                         goto done;
1702                 }
1703                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1704                         goto done;
1705                 }
1706                 if ( !BER_BVISNULL( &sup ) ) {
1707                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1708                                 goto done;
1709                         }
1710                         op->orr_newSup = &psup;
1711                         op->orr_nnewSup = &nsup;
1712                 } else {
1713                         op->orr_newSup = NULL;
1714                         op->orr_nnewSup = NULL;
1715                 }
1716                 op->orr_newrdn = prdn;
1717                 op->orr_nnewrdn = nrdn;
1718                 op->orr_deleteoldrdn = deleteOldRdn;
1719                 op->orr_modlist = NULL;
1720                 if ( slap_modrdn2mods( op, &rs ) ) {
1721                         goto done;
1722                 }
1723
1724                 /* Append modlist for operational attrs */
1725                 {
1726                         Modifications *m;
1727
1728                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1729                                 ;
1730                         m->sml_next = modlist;
1731                         modlist = NULL;
1732                 }
1733                 rc = op->o_bd->be_modrdn( op, &rs );
1734                 slap_mods_free( op->orr_modlist, 1 );
1735                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1736                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1737                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1738                 break;
1739         case LDAP_REQ_DELETE:
1740                 rc = op->o_bd->be_delete( op, &rs );
1741                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1742                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1743                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1744                 break;
1745         }
1746 done:
1747         slap_graduate_commit_csn( op );
1748         op->o_bd = si->si_be;
1749         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1750         BER_BVZERO( &op->o_csn );
1751         if ( modlist ) {
1752                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1753         }
1754         if ( !BER_BVISNULL( &rdn ) ) {
1755                 if ( !BER_BVISNULL( &nsup ) ) {
1756                         ch_free( nsup.bv_val );
1757                 }
1758                 if ( !BER_BVISNULL( &psup ) ) {
1759                         ch_free( psup.bv_val );
1760                 }
1761                 if ( !BER_BVISNULL( &nrdn ) ) {
1762                         ch_free( nrdn.bv_val );
1763                 }
1764                 if ( !BER_BVISNULL( &prdn ) ) {
1765                         ch_free( prdn.bv_val );
1766                 }
1767         }
1768         if ( freeReqDn ) {
1769                 ch_free( op->o_req_ndn.bv_val );
1770                 ch_free( op->o_req_dn.bv_val );
1771         }
1772         ber_free( ber, 0 );
1773         return rc;
1774 }
1775
1776 static int
1777 syncrepl_message_to_entry(
1778         syncinfo_t      *si,
1779         Operation       *op,
1780         LDAPMessage     *msg,
1781         Modifications   **modlist,
1782         Entry                   **entry,
1783         int             syncstate
1784 )
1785 {
1786         Entry           *e = NULL;
1787         BerElement      *ber = NULL;
1788         Modifications   tmp;
1789         Modifications   *mod;
1790         Modifications   **modtail = modlist;
1791
1792         const char      *text;
1793         char txtbuf[SLAP_TEXT_BUFLEN];
1794         size_t textlen = sizeof txtbuf;
1795
1796         struct berval   bdn = BER_BVNULL, dn, ndn;
1797         int             rc, is_ctx;
1798
1799         *modlist = NULL;
1800
1801         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1802                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1803                         "Message type should be entry (%d)",
1804                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1805                 return -1;
1806         }
1807
1808         op->o_tag = LDAP_REQ_ADD;
1809
1810         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1811         if ( rc != LDAP_SUCCESS ) {
1812                 Debug( LDAP_DEBUG_ANY,
1813                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1814                         si->si_ridtxt, rc, 0 );
1815                 return rc;
1816         }
1817
1818         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1819                 /* NOTE: this could be done even before decoding the DN,
1820                  * although encoding errors wouldn't be detected */
1821                 rc = LDAP_SUCCESS;
1822                 goto done;
1823         }
1824
1825         if ( entry == NULL ) {
1826                 return -1;
1827         }
1828
1829         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1830         ber_dupbv( &op->o_req_dn, &dn );
1831         ber_dupbv( &op->o_req_ndn, &ndn );
1832         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1833         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1834
1835         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1836
1837         e = entry_alloc();
1838         e->e_name = op->o_req_dn;
1839         e->e_nname = op->o_req_ndn;
1840
1841         while ( ber_remaining( ber ) ) {
1842                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1843                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1844                 {
1845                         break;
1846                 }
1847
1848                 /* Drop all updates to the contextCSN of the context entry
1849                  * (ITS#4622, etc.)
1850                  */
1851                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1852                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1853                         ber_bvarray_free( tmp.sml_values );
1854                         continue;
1855                 }
1856
1857                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1858
1859                 mod->sml_op = LDAP_MOD_REPLACE;
1860                 mod->sml_flags = 0;
1861                 mod->sml_next = NULL;
1862                 mod->sml_desc = NULL;
1863                 mod->sml_type = tmp.sml_type;
1864                 mod->sml_values = tmp.sml_values;
1865                 mod->sml_nvalues = NULL;
1866                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1867
1868                 *modtail = mod;
1869                 modtail = &mod->sml_next;
1870         }
1871
1872         if ( *modlist == NULL ) {
1873                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1874                         si->si_ridtxt, 0, 0 );
1875                 rc = -1;
1876                 goto done;
1877         }
1878
1879         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1880
1881         if ( rc != LDAP_SUCCESS ) {
1882                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1883                         si->si_ridtxt, text, 0 );
1884                 goto done;
1885         }
1886
1887         /* Strip out dynamically generated attrs */
1888         for ( modtail = modlist; *modtail ; ) {
1889                 mod = *modtail;
1890                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1891                         *modtail = mod->sml_next;
1892                         slap_mod_free( &mod->sml_mod, 0 );
1893                         ch_free( mod );
1894                 } else {
1895                         modtail = &mod->sml_next;
1896                 }
1897         }
1898
1899         /* Strip out attrs in exattrs list */
1900         for ( modtail = modlist; *modtail ; ) {
1901                 mod = *modtail;
1902                 if ( ldap_charray_inlist( si->si_exattrs,
1903                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1904                 {
1905                         *modtail = mod->sml_next;
1906                         slap_mod_free( &mod->sml_mod, 0 );
1907                         ch_free( mod );
1908                 } else {
1909                         modtail = &mod->sml_next;
1910                 }
1911         }
1912
1913         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1914         if( rc != LDAP_SUCCESS ) {
1915                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1916                         si->si_ridtxt, text, 0 );
1917         }
1918
1919 done:
1920         ber_free( ber, 0 );
1921         if ( rc != LDAP_SUCCESS ) {
1922                 if ( e ) {
1923                         entry_free( e );
1924                         e = NULL;
1925                 }
1926         }
1927         if ( entry )
1928                 *entry = e;
1929
1930         return rc;
1931 }
1932
1933 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1934
1935 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1936  * entry if a previous refresh was interrupted before sending us a new
1937  * context state. We try to compare the new entry to the existing entry
1938  * and ignore the new entry if they are the same.
1939  *
1940  * Also, we may get an update where the entryDN has changed, due to
1941  * a ModDn on the provider. We detect this as well, so we can issue
1942  * the corresponding operation locally.
1943  *
1944  * In the case of a modify, we get a list of all the attributes
1945  * in the original entry. Rather than deleting the entry and re-adding it,
1946  * we issue a Modify request that deletes all the attributes and adds all
1947  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1948  * entry.
1949  *
1950  * We otherwise distinguish ModDN from Modify; in the case of
1951  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1952  * operational attributes from the entry, and do a regular ModDN.
1953  */
1954 typedef struct dninfo {
1955         Entry *new_entry;
1956         struct berval dn;
1957         struct berval ndn;
1958         struct berval nnewSup;
1959         int renamed;    /* Was an existing entry renamed? */
1960         int delOldRDN;  /* Was old RDN deleted? */
1961         Modifications **modlist;        /* the modlist we received */
1962         Modifications *mods;    /* the modlist we compared */
1963         Attribute *oldNattr;    /* old naming attr */
1964         AttributeDescription *oldDesc;  /* for renames */
1965         AttributeDescription *newDesc;  /* for renames */
1966 } dninfo;
1967
1968 /* return 1 if inserted, 0 otherwise */
1969 static int
1970 avl_presentlist_insert(
1971         syncinfo_t* si,
1972         struct berval *syncUUID )
1973 {
1974         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1975
1976         syncuuid_bv->bv_len = syncUUID->bv_len;
1977         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1978         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1979         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1980
1981         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1982                 syncuuid_cmp, avl_dup_error ) )
1983         {
1984                 ch_free( syncuuid_bv );
1985                 return 0;
1986         }
1987
1988         return 1;
1989 }
1990
1991 static int
1992 syncrepl_entry(
1993         syncinfo_t* si,
1994         Operation *op,
1995         Entry* entry,
1996         Modifications** modlist,
1997         int syncstate,
1998         struct berval* syncUUID,
1999         struct berval* syncCSN )
2000 {
2001         Backend *be = op->o_bd;
2002         slap_callback   cb = { NULL, NULL, NULL, NULL };
2003         int syncuuid_inserted = 0;
2004         struct berval   syncUUID_strrep = BER_BVNULL;
2005
2006         SlapReply       rs_search = {REP_RESULT};
2007         SlapReply       rs_delete = {REP_RESULT};
2008         SlapReply       rs_add = {REP_RESULT};
2009         SlapReply       rs_modify = {REP_RESULT};
2010         Filter f = {0};
2011         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2012         int rc = LDAP_SUCCESS;
2013
2014         struct berval pdn = BER_BVNULL;
2015         dninfo dni = {0};
2016         int     retry = 1;
2017         int     freecsn = 1;
2018
2019         Debug( LDAP_DEBUG_SYNC,
2020                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2021                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2022
2023         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2024                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2025                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2026                 }
2027         }
2028
2029         if ( syncstate == LDAP_SYNC_PRESENT ) {
2030                 return 0;
2031         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2032                 if ( entry == NULL ) {
2033                         return 0;
2034                 }
2035         }
2036
2037         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2038         if ( syncstate != LDAP_SYNC_DELETE ) {
2039                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2040
2041                 if ( a == NULL ) {
2042                         /* add if missing */
2043                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2044                                 &syncUUID_strrep, syncUUID );
2045
2046                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2047                         /* replace only if necessary */
2048                         if ( a->a_nvals != a->a_vals ) {
2049                                 ber_memfree( a->a_nvals[0].bv_val );
2050                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2051                         }
2052                         ber_memfree( a->a_vals[0].bv_val );
2053                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2054                 }
2055         }
2056
2057         f.f_choice = LDAP_FILTER_EQUALITY;
2058         f.f_ava = &ava;
2059         ava.aa_desc = slap_schema.si_ad_entryUUID;
2060         ava.aa_value = *syncUUID;
2061
2062         if ( syncuuid_inserted ) {
2063                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2064                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2065         }
2066         op->ors_filter = &f;
2067
2068         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2069         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2070                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2071         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2072         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2073                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2074         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2075         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2076
2077         op->o_tag = LDAP_REQ_SEARCH;
2078         op->ors_scope = LDAP_SCOPE_SUBTREE;
2079         op->ors_deref = LDAP_DEREF_NEVER;
2080
2081         /* get the entry for this UUID */
2082         op->o_req_dn = si->si_base;
2083         op->o_req_ndn = si->si_base;
2084
2085         op->o_time = slap_get_time();
2086         op->ors_tlimit = SLAP_NO_LIMIT;
2087         op->ors_slimit = 1;
2088
2089         op->ors_attrs = slap_anlist_all_attributes;
2090         op->ors_attrsonly = 0;
2091
2092         /* set callback function */
2093         op->o_callback = &cb;
2094         cb.sc_response = dn_callback;
2095         cb.sc_private = &dni;
2096         dni.new_entry = entry;
2097         dni.modlist = modlist;
2098
2099         if ( limits_check( op, &rs_search ) == 0 ) {
2100                 rc = be->be_search( op, &rs_search );
2101                 Debug( LDAP_DEBUG_SYNC,
2102                                 "syncrepl_entry: %s be_search (%d)\n",
2103                                 si->si_ridtxt, rc, 0 );
2104         }
2105
2106         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2107                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2108         }
2109
2110         cb.sc_response = null_callback;
2111         cb.sc_private = si;
2112
2113         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2114                 Debug( LDAP_DEBUG_SYNC,
2115                                 "syncrepl_entry: %s %s\n",
2116                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2117         } else {
2118                 Debug( LDAP_DEBUG_SYNC,
2119                                 "syncrepl_entry: %s %s\n",
2120                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2121         }
2122
2123         assert( BER_BVISNULL( &op->o_csn ) );
2124         if ( syncCSN ) {
2125                 slap_queue_csn( op, syncCSN );
2126         }
2127
2128         slap_op_time( &op->o_time, &op->o_tincr );
2129         switch ( syncstate ) {
2130         case LDAP_SYNC_ADD:
2131         case LDAP_SYNC_MODIFY:
2132                 if ( BER_BVISNULL( &op->o_csn ))
2133                 {
2134
2135                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2136                         if ( a ) {
2137                                 /* FIXME: op->o_csn is assumed to be
2138                                  * on the thread's slab; this needs
2139                                  * to be cleared ASAP.
2140                                  * What happens if already present?
2141                                  */
2142                                 assert( BER_BVISNULL( &op->o_csn ) );
2143                                 op->o_csn = a->a_vals[0];
2144                                 freecsn = 0;
2145                         }
2146                 }
2147 retry_add:;
2148                 if ( BER_BVISNULL( &dni.dn ) ) {
2149
2150                         op->o_req_dn = entry->e_name;
2151                         op->o_req_ndn = entry->e_nname;
2152                         op->o_tag = LDAP_REQ_ADD;
2153                         op->ora_e = entry;
2154                         op->o_bd = si->si_wbe;
2155
2156                         rc = op->o_bd->be_add( op, &rs_add );
2157                         Debug( LDAP_DEBUG_SYNC,
2158                                         "syncrepl_entry: %s be_add (%d)\n",
2159                                         si->si_ridtxt, rc, 0 );
2160                         switch ( rs_add.sr_err ) {
2161                         case LDAP_SUCCESS:
2162                                 if ( op->ora_e == entry ) {
2163                                         be_entry_release_w( op, entry );
2164                                 }
2165                                 entry = NULL;
2166                                 break;
2167
2168                         case LDAP_REFERRAL:
2169                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2170                          * only if the suffix entry is not present */
2171                         case LDAP_NO_SUCH_OBJECT:
2172                                 rc = syncrepl_add_glue( op, entry );
2173                                 entry = NULL;
2174                                 break;
2175
2176                         /* if an entry was added via syncrepl_add_glue(),
2177                          * it likely has no entryUUID, so the previous
2178                          * be_search() doesn't find it.  In this case,
2179                          * give syncrepl a chance to modify it. Also
2180                          * allow for entries that were recreated with the
2181                          * same DN but a different entryUUID.
2182                          */
2183                         case LDAP_ALREADY_EXISTS:
2184                                 if ( retry ) {
2185                                         Operation       op2 = *op;
2186                                         SlapReply       rs2 = { 0 };
2187                                         slap_callback   cb2 = { 0 };
2188
2189                                         op2.o_bd = be;
2190                                         op2.o_tag = LDAP_REQ_SEARCH;
2191                                         op2.o_req_dn = entry->e_name;
2192                                         op2.o_req_ndn = entry->e_nname;
2193                                         op2.ors_scope = LDAP_SCOPE_BASE;
2194                                         op2.ors_deref = LDAP_DEREF_NEVER;
2195                                         op2.ors_attrs = slap_anlist_all_attributes;
2196                                         op2.ors_attrsonly = 0;
2197                                         op2.ors_limit = NULL;
2198                                         op2.ors_slimit = 1;
2199                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2200
2201                                         f.f_choice = LDAP_FILTER_PRESENT;
2202                                         f.f_desc = slap_schema.si_ad_objectClass;
2203                                         op2.ors_filter = &f;
2204                                         op2.ors_filterstr = generic_filterstr;
2205
2206                                         op2.o_callback = &cb2;
2207                                         cb2.sc_response = dn_callback;
2208                                         cb2.sc_private = &dni;
2209
2210                                         rc = be->be_search( &op2, &rs2 );
2211                                         if ( rc ) goto done;
2212
2213                                         retry = 0;
2214                                         slap_op_time( &op->o_time, &op->o_tincr );
2215                                         goto retry_add;
2216                                 }
2217                                 /* FALLTHRU */
2218
2219                         default:
2220                                 Debug( LDAP_DEBUG_ANY,
2221                                         "syncrepl_entry: %s be_add failed (%d)\n",
2222                                         si->si_ridtxt, rs_add.sr_err, 0 );
2223                                 break;
2224                         }
2225                         op->o_bd = be;
2226                         goto done;
2227                 }
2228                 /* FALLTHRU */
2229                 op->o_req_dn = dni.dn;
2230                 op->o_req_ndn = dni.ndn;
2231                 if ( dni.renamed ) {
2232                         struct berval noldp, newp;
2233                         Modifications *mod, **modtail, **ml, *m2;
2234                         int i, got_replace = 0, just_rename = 0;
2235
2236                         op->o_tag = LDAP_REQ_MODRDN;
2237                         dnRdn( &entry->e_name, &op->orr_newrdn );
2238                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2239
2240                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2241                                 dnParent( &entry->e_name, &newp );
2242                                 op->orr_newSup = &newp;
2243                                 op->orr_nnewSup = &dni.nnewSup;
2244                         } else {
2245                                 op->orr_newSup = NULL;
2246                                 op->orr_nnewSup = NULL;
2247                         }
2248                         op->orr_deleteoldrdn = dni.delOldRDN;
2249                         op->orr_modlist = NULL;
2250                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2251                                 goto done;
2252                         }
2253
2254                         /* Drop the RDN-related mods from this op, because their
2255                          * equivalents were just setup by slap_modrdn2mods.
2256                          *
2257                          * If delOldRDN is TRUE then we should see a delete modop
2258                          * for oldDesc. We might see a replace instead.
2259                          *  delete with no values: therefore newDesc != oldDesc.
2260                          *   if oldNattr had only one value, then Drop this op.
2261                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2262                          *  delete with N values: Drop oldRDN value, keep remainder.
2263                          *  replace with 1 value: if oldNattr had only one value and
2264                          *     newDesc == oldDesc, Drop this op.
2265                          * Any other cases must be left intact.
2266                          *
2267                          * We should also see an add modop for newDesc. (But not if
2268                          * we got a replace modop due to delOldRDN.) If it has
2269                          * multiple values, we'll have to drop the new RDN value.
2270                          */
2271                         modtail = &op->orr_modlist;
2272                         if ( dni.delOldRDN ) {
2273                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2274                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2275                                                 mod = *ml;
2276                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2277                                                         dni.oldDesc != dni.newDesc ) {
2278                                                         /* This Replace is due to other Mods.
2279                                                          * Just let it ride.
2280                                                          */
2281                                                         continue;
2282                                                 }
2283                                                 if ( mod->sml_numvals <= 1 &&
2284                                                         dni.oldNattr->a_numvals == 1 &&
2285                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2286                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2287                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2288                                                                 got_replace = 1;
2289                                                         /* Drop this op */
2290                                                         *ml = mod->sml_next;
2291                                                         mod->sml_next = NULL;
2292                                                         slap_mods_free( mod, 1 );
2293                                                         break;
2294                                                 }
2295                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2296                                                         continue;
2297                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2298                                                         if ( m2->sml_desc == dni.oldDesc &&
2299                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2300                                                 }
2301                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2302                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2303                                                                 mod->sml_numvals--;
2304                                                                 ch_free( mod->sml_values[i].bv_val );
2305                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2306                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2307                                                                 if ( mod->sml_nvalues ) {
2308                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2309                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2310                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2311                                                                 }
2312                                                                 break;
2313                                                         }
2314                                                 }
2315                                                 break;
2316                                         }
2317                                 }
2318                         }
2319                         if ( !got_replace ) {
2320                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2321                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2322                                                 mod = *ml;
2323                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2324                                                         continue;
2325                                                 if ( mod->sml_numvals == 1 ) {
2326                                                         /* Drop this op */
2327                                                         *ml = mod->sml_next;
2328                                                         mod->sml_next = NULL;
2329                                                         slap_mods_free( mod, 1 );
2330                                                         break;
2331                                                 }
2332                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2333                                                         if ( m2->sml_desc == dni.oldDesc &&
2334                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2335                                                 }
2336                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2337                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2338                                                                 mod->sml_numvals--;
2339                                                                 ch_free( mod->sml_values[i].bv_val );
2340                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2341                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2342                                                                 if ( mod->sml_nvalues ) {
2343                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2344                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2345                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2346                                                                 }
2347                                                                 break;
2348                                                         }
2349                                                 }
2350                                                 break;
2351                                         }
2352                                 }
2353                         }
2354
2355                         /* RDNs must be NUL-terminated for back-ldap */
2356                         noldp = op->orr_newrdn;
2357                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2358                         noldp = op->orr_nnewrdn;
2359                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2360
2361                         /* Setup opattrs too */
2362                         {
2363                                 static AttributeDescription *nullattr = NULL;
2364                                 static AttributeDescription **const opattrs[] = {
2365                                         &slap_schema.si_ad_entryCSN,
2366                                         &slap_schema.si_ad_modifiersName,
2367                                         &slap_schema.si_ad_modifyTimestamp,
2368                                         &nullattr
2369                                 };
2370                                 AttributeDescription *opattr;
2371                                 int i;
2372
2373                                 modtail = &m2;
2374                                 /* pull mod off incoming modlist */
2375                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2376                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2377                                         {
2378                                                 if ( (*ml)->sml_desc == opattr ) {
2379                                                         mod = *ml;
2380                                                         *ml = mod->sml_next;
2381                                                         mod->sml_next = NULL;
2382                                                         *modtail = mod;
2383                                                         modtail = &mod->sml_next;
2384                                                         break;
2385                                                 }
2386                                         }
2387                                 }
2388                                 /* If there are still Modifications left, put the opattrs
2389                                  * back, and let be_modify run. Otherwise, append the opattrs
2390                                  * to the orr_modlist.
2391                                  */
2392                                 if ( dni.mods ) {
2393                                         mod = dni.mods;
2394                                         /* don't set a CSN for the rename op */
2395                                         if ( syncCSN )
2396                                                 slap_graduate_commit_csn( op );
2397                                 } else {
2398                                         mod = op->orr_modlist;
2399                                         just_rename = 1;
2400                                 }
2401                                 for ( ; mod->sml_next; mod=mod->sml_next );
2402                                 mod->sml_next = m2;
2403                         }
2404                         op->o_bd = si->si_wbe;
2405                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2406                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2407                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2408
2409                         slap_mods_free( op->orr_modlist, 1 );
2410                         Debug( LDAP_DEBUG_SYNC,
2411                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2412                                         si->si_ridtxt, rc, 0 );
2413                         op->o_bd = be;
2414                         /* Renamed entries may still have other mods so just fallthru */
2415                         op->o_req_dn = entry->e_name;
2416                         op->o_req_ndn = entry->e_nname;
2417                         /* Use CSN on the modify */
2418                         if ( syncCSN && !just_rename )
2419                                 slap_queue_csn( op, syncCSN );
2420                 }
2421                 if ( dni.mods ) {
2422                         op->o_tag = LDAP_REQ_MODIFY;
2423                         op->orm_modlist = dni.mods;
2424                         op->orm_no_opattrs = 1;
2425                         op->o_bd = si->si_wbe;
2426
2427                         rc = op->o_bd->be_modify( op, &rs_modify );
2428                         slap_mods_free( op->orm_modlist, 1 );
2429                         op->orm_no_opattrs = 0;
2430                         Debug( LDAP_DEBUG_SYNC,
2431                                         "syncrepl_entry: %s be_modify (%d)\n",
2432                                         si->si_ridtxt, rc, 0 );
2433                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2434                                 Debug( LDAP_DEBUG_ANY,
2435                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2436                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2437                         }
2438                         op->o_bd = be;
2439                 } else if ( !dni.renamed ) {
2440                         Debug( LDAP_DEBUG_SYNC,
2441                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2442                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2443                 }
2444                 goto done;
2445         case LDAP_SYNC_DELETE :
2446                 if ( !BER_BVISNULL( &dni.dn ) ) {
2447                         op->o_req_dn = dni.dn;
2448                         op->o_req_ndn = dni.ndn;
2449                         op->o_tag = LDAP_REQ_DELETE;
2450                         op->o_bd = si->si_wbe;
2451                         rc = op->o_bd->be_delete( op, &rs_delete );
2452                         Debug( LDAP_DEBUG_SYNC,
2453                                         "syncrepl_entry: %s be_delete (%d)\n",
2454                                         si->si_ridtxt, rc, 0 );
2455
2456                         while ( rs_delete.sr_err == LDAP_SUCCESS
2457                                 && op->o_delete_glue_parent ) {
2458                                 op->o_delete_glue_parent = 0;
2459                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2460                                         slap_callback cb = { NULL };
2461                                         cb.sc_response = slap_null_cb;
2462                                         dnParent( &op->o_req_ndn, &pdn );
2463                                         op->o_req_dn = pdn;
2464                                         op->o_req_ndn = pdn;
2465                                         op->o_callback = &cb;
2466                                         op->o_bd->be_delete( op, &rs_delete );
2467                                 } else {
2468                                         break;
2469                                 }
2470                         }
2471                         op->o_bd = be;
2472                 }
2473                 goto done;
2474
2475         default :
2476                 Debug( LDAP_DEBUG_ANY,
2477                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2478                 goto done;
2479         }
2480
2481 done:
2482         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2483                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2484                 BER_BVZERO( &syncUUID_strrep );
2485         }
2486         if ( !BER_BVISNULL( &dni.ndn ) ) {
2487                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2488         }
2489         if ( !BER_BVISNULL( &dni.dn ) ) {
2490                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2491         }
2492         if ( entry ) {
2493                 entry_free( entry );
2494         }
2495         if ( syncCSN ) {
2496                 slap_graduate_commit_csn( op );
2497         }
2498         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2499                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2500         }
2501         BER_BVZERO( &op->o_csn );
2502         return rc;
2503 }
2504
2505 static struct berval gcbva[] = {
2506         BER_BVC("top"),
2507         BER_BVC("glue"),
2508         BER_BVNULL
2509 };
2510
2511 #define NP_DELETE_ONE   2
2512
2513 static void
2514 syncrepl_del_nonpresent(
2515         Operation *op,
2516         syncinfo_t *si,
2517         BerVarray uuids,
2518         struct sync_cookie *sc,
2519         int m )
2520 {
2521         Backend* be = op->o_bd;
2522         slap_callback   cb = { NULL };
2523         SlapReply       rs_search = {REP_RESULT};
2524         SlapReply       rs_delete = {REP_RESULT};
2525         SlapReply       rs_modify = {REP_RESULT};
2526         struct nonpresent_entry *np_list, *np_prev;
2527         int rc;
2528         AttributeName   an[2];
2529
2530         struct berval pdn = BER_BVNULL;
2531         struct berval csn;
2532
2533         op->o_req_dn = si->si_base;
2534         op->o_req_ndn = si->si_base;
2535
2536         cb.sc_response = nonpresent_callback;
2537         cb.sc_private = si;
2538
2539         op->o_callback = &cb;
2540         op->o_tag = LDAP_REQ_SEARCH;
2541         op->ors_scope = si->si_scope;
2542         op->ors_deref = LDAP_DEREF_NEVER;
2543         op->o_time = slap_get_time();
2544         op->ors_tlimit = SLAP_NO_LIMIT;
2545
2546
2547         if ( uuids ) {
2548                 Filter uf;
2549                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2550                 int i;
2551
2552                 op->ors_attrsonly = 1;
2553                 op->ors_attrs = slap_anlist_no_attrs;
2554                 op->ors_limit = NULL;
2555                 op->ors_filter = &uf;
2556
2557                 uf.f_ava = &eq;
2558                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2559                 uf.f_next = NULL;
2560                 uf.f_choice = LDAP_FILTER_EQUALITY;
2561                 si->si_refreshDelete |= NP_DELETE_ONE;
2562
2563                 for (i=0; uuids[i].bv_val; i++) {
2564                         op->ors_slimit = 1;
2565                         uf.f_av_value = uuids[i];
2566                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2567                         rc = be->be_search( op, &rs_search );
2568                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2569                 }
2570                 si->si_refreshDelete ^= NP_DELETE_ONE;
2571         } else {
2572                 Filter *cf, *of;
2573
2574                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2575                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2576                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2577                 op->ors_attrs = an;
2578                 op->ors_slimit = SLAP_NO_LIMIT;
2579                 op->ors_attrsonly = 0;
2580                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2581                 /* In multimaster, updates can continue to arrive while
2582                  * we're searching. Limit the search result to entries
2583                  * older than all of our cookie CSNs.
2584                  */
2585                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2586                         Filter *f;
2587                         int i;
2588                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2589                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2590                         f = cf;
2591                         f->f_choice = LDAP_FILTER_AND;
2592                         f->f_next = NULL;
2593                         f->f_and = f+1;
2594                         of = f->f_and;
2595                         for ( i=0; i<sc->numcsns; i++ ) {
2596                                 f = of;
2597                                 f->f_choice = LDAP_FILTER_LE;
2598                                 f->f_ava = (AttributeAssertion *)(f+1);
2599                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2600                                 f->f_av_value = sc->ctxcsn[i];
2601                                 f->f_next = (Filter *)(f->f_ava+1);
2602                                 of = f->f_next;
2603                         }
2604                         f->f_next = op->ors_filter;
2605                         of = op->ors_filter;
2606                         op->ors_filter = cf;
2607                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2608                 } else {
2609                         cf = NULL;
2610                         op->ors_filterstr = si->si_filterstr;
2611                 }
2612                 op->o_nocaching = 1;
2613
2614                 if ( limits_check( op, &rs_search ) == 0 ) {
2615                         rc = be->be_search( op, &rs_search );
2616                 }
2617                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2618                         op->o_tmpfree( cf, op->o_tmpmemctx );
2619                         op->ors_filter = of;
2620                 }
2621                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2622                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2623                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2624                 }
2625
2626         }
2627
2628         op->o_nocaching = 0;
2629
2630         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2631
2632                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2633                         csn = sc->ctxcsn[m];
2634                 } else {
2635                         csn = si->si_syncCookie.ctxcsn[0];
2636                 }
2637
2638                 op->o_bd = si->si_wbe;
2639                 slap_queue_csn( op, &csn );
2640
2641                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2642                 while ( np_list != NULL ) {
2643                         LDAP_LIST_REMOVE( np_list, npe_link );
2644                         np_prev = np_list;
2645                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2646                         op->o_tag = LDAP_REQ_DELETE;
2647                         op->o_callback = &cb;
2648                         cb.sc_response = null_callback;
2649                         cb.sc_private = si;
2650                         op->o_req_dn = *np_prev->npe_name;
2651                         op->o_req_ndn = *np_prev->npe_nname;
2652                         rc = op->o_bd->be_delete( op, &rs_delete );
2653                         Debug( LDAP_DEBUG_SYNC,
2654                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2655                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2656
2657                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2658                                 Modifications mod1, mod2;
2659                                 mod1.sml_op = LDAP_MOD_REPLACE;
2660                                 mod1.sml_flags = 0;
2661                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2662                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2663                                 mod1.sml_numvals = 2;
2664                                 mod1.sml_values = &gcbva[0];
2665                                 mod1.sml_nvalues = NULL;
2666                                 mod1.sml_next = &mod2;
2667
2668                                 mod2.sml_op = LDAP_MOD_REPLACE;
2669                                 mod2.sml_flags = 0;
2670                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2671                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2672                                 mod2.sml_numvals = 1;
2673                                 mod2.sml_values = &gcbva[1];
2674                                 mod2.sml_nvalues = NULL;
2675                                 mod2.sml_next = NULL;
2676
2677                                 op->o_tag = LDAP_REQ_MODIFY;
2678                                 op->orm_modlist = &mod1;
2679
2680                                 rc = op->o_bd->be_modify( op, &rs_modify );
2681                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2682                         }
2683
2684                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2685                                         op->o_delete_glue_parent ) {
2686                                 op->o_delete_glue_parent = 0;
2687                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2688                                         slap_callback cb = { NULL };
2689                                         cb.sc_response = slap_null_cb;
2690                                         dnParent( &op->o_req_ndn, &pdn );
2691                                         op->o_req_dn = pdn;
2692                                         op->o_req_ndn = pdn;
2693                                         op->o_callback = &cb;
2694                                         /* give it a root privil ? */
2695                                         op->o_bd->be_delete( op, &rs_delete );
2696                                 } else {
2697                                         break;
2698                                 }
2699                         }
2700
2701                         op->o_delete_glue_parent = 0;
2702
2703                         ber_bvfree( np_prev->npe_name );
2704                         ber_bvfree( np_prev->npe_nname );
2705                         ch_free( np_prev );
2706
2707                         if ( slapd_shutdown ) {
2708                                 break;
2709                         }
2710                 }
2711
2712                 slap_graduate_commit_csn( op );
2713                 op->o_bd = be;
2714
2715                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2716                 BER_BVZERO( &op->o_csn );
2717         }
2718
2719         return;
2720 }
2721
2722 int
2723 syncrepl_add_glue(
2724         Operation* op,
2725         Entry *e )
2726 {
2727         Backend *be = op->o_bd;
2728         slap_callback cb = { NULL };
2729         Attribute       *a;
2730         int     rc;
2731         int suffrdns;
2732         int i;
2733         struct berval dn = BER_BVNULL;
2734         struct berval ndn = BER_BVNULL;
2735         Entry   *glue;
2736         SlapReply       rs_add = {REP_RESULT};
2737         struct berval   ptr, nptr;
2738         char            *comma;
2739
2740         op->o_tag = LDAP_REQ_ADD;
2741         op->o_callback = &cb;
2742         cb.sc_response = null_callback;
2743         cb.sc_private = NULL;
2744
2745         dn = e->e_name;
2746         ndn = e->e_nname;
2747
2748         /* count RDNs in suffix */
2749         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2750                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2751                         comma++;
2752                         ptr.bv_len -= comma - ptr.bv_val;
2753                         ptr.bv_val = comma;
2754                         i++;
2755                 }
2756                 suffrdns = i;
2757         } else {
2758                 /* suffix is "" */
2759                 suffrdns = 0;
2760         }
2761
2762         /* Start with BE suffix */
2763         ptr = dn;
2764         for ( i = 0; i < suffrdns; i++ ) {
2765                 comma = ber_bvrchr( &ptr, ',' );
2766                 if ( comma != NULL ) {
2767                         ptr.bv_len = comma - ptr.bv_val;
2768                 } else {
2769                         ptr.bv_len = 0;
2770                         break;
2771                 }
2772         }
2773
2774         if ( !BER_BVISEMPTY( &ptr ) ) {
2775                 dn.bv_len -= ptr.bv_len + 1;
2776                 dn.bv_val += ptr.bv_len + 1;
2777         }
2778
2779         /* the normalizedDNs are always the same length, no counting
2780          * required.
2781          */
2782         nptr = ndn;
2783         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2784                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2785                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2786
2787                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2788
2789         } else {
2790                 nptr.bv_len = 0;
2791         }
2792
2793         while ( ndn.bv_val > e->e_nname.bv_val ) {
2794                 glue = entry_alloc();
2795                 ber_dupbv( &glue->e_name, &dn );
2796                 ber_dupbv( &glue->e_nname, &ndn );
2797
2798                 a = attr_alloc( slap_schema.si_ad_objectClass );
2799
2800                 a->a_numvals = 2;
2801                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2802                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2803                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2804                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2805
2806                 a->a_nvals = a->a_vals;
2807
2808                 a->a_next = glue->e_attrs;
2809                 glue->e_attrs = a;
2810
2811                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2812
2813                 a->a_numvals = 1;
2814                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2815                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2816                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2817
2818                 a->a_nvals = a->a_vals;
2819
2820                 a->a_next = glue->e_attrs;
2821                 glue->e_attrs = a;
2822
2823                 op->o_req_dn = glue->e_name;
2824                 op->o_req_ndn = glue->e_nname;
2825                 op->ora_e = glue;
2826                 rc = be->be_add ( op, &rs_add );
2827                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2828                         if ( op->ora_e == glue )
2829                                 be_entry_release_w( op, glue );
2830                 } else {
2831                 /* incl. ALREADY EXIST */
2832                         entry_free( glue );
2833                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2834                                 entry_free( e );
2835                                 return rc;
2836                         }
2837                 }
2838
2839                 /* Move to next child */
2840                 comma = ber_bvrchr( &ptr, ',' );
2841                 if ( comma == NULL ) {
2842                         break;
2843                 }
2844                 ptr.bv_len = comma - ptr.bv_val;
2845
2846                 dn.bv_val = ++comma;
2847                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2848
2849                 comma = ber_bvrchr( &nptr, ',' );
2850                 assert( comma != NULL );
2851                 nptr.bv_len = comma - nptr.bv_val;
2852
2853                 ndn.bv_val = ++comma;
2854                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2855         }
2856
2857         op->o_req_dn = e->e_name;
2858         op->o_req_ndn = e->e_nname;
2859         op->ora_e = e;
2860         rc = be->be_add ( op, &rs_add );
2861         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2862                 if ( op->ora_e == e )
2863                         be_entry_release_w( op, e );
2864         } else {
2865                 entry_free( e );
2866         }
2867
2868         return rc;
2869 }
2870
2871 static int
2872 syncrepl_updateCookie(
2873         syncinfo_t *si,
2874         Operation *op,
2875         struct berval *pdn,
2876         struct sync_cookie *syncCookie )
2877 {
2878         Backend *be = op->o_bd;
2879         Modifications mod;
2880         struct berval first = BER_BVNULL;
2881
2882         int rc, i, j;
2883         ber_len_t len;
2884
2885         slap_callback cb = { NULL };
2886         SlapReply       rs_modify = {REP_RESULT};
2887
2888         mod.sml_op = LDAP_MOD_REPLACE;
2889         mod.sml_desc = slap_schema.si_ad_contextCSN;
2890         mod.sml_type = mod.sml_desc->ad_cname;
2891         mod.sml_flags = SLAP_MOD_INTERNAL;
2892         mod.sml_nvalues = NULL;
2893         mod.sml_next = NULL;
2894
2895         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2896
2897         /* clone the cookieState CSNs so we can Replace the whole thing */
2898         mod.sml_numvals = si->si_cookieState->cs_num;
2899         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2900         for ( i=0; i<mod.sml_numvals; i++ )
2901                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2902         BER_BVZERO( &mod.sml_values[i] );
2903
2904         /* find any CSNs in the syncCookie that are newer than the cookieState */
2905         for ( i=0; i<syncCookie->numcsns; i++ ) {
2906                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2907                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2908                                 continue;
2909                         len = syncCookie->ctxcsn[i].bv_len;
2910                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2911                                 len = si->si_cookieState->cs_vals[j].bv_len;
2912                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2913                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2914                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2915                                 if ( BER_BVISNULL( &first ) ) {
2916                                         first = syncCookie->ctxcsn[i];
2917
2918                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2919                                 {
2920                                         first = syncCookie->ctxcsn[i];
2921                                 }
2922                         }
2923                         break;
2924                 }
2925                 /* there was no match for this SID, it's a new CSN */
2926                 if ( j == si->si_cookieState->cs_num ) {
2927                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2928                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2929                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2930                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2931                         if ( BER_BVISNULL( &first ) ) {
2932                                 first = syncCookie->ctxcsn[i];
2933                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2934                         {
2935                                 first = syncCookie->ctxcsn[i];
2936                         }
2937                 }
2938         }
2939         /* Should never happen, ITS#5065 */
2940         if ( BER_BVISNULL( &first )) {
2941                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2942                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2943                 return 0;
2944         }
2945         op->o_bd = si->si_wbe;
2946         slap_queue_csn( op, &first );
2947
2948         op->o_tag = LDAP_REQ_MODIFY;
2949
2950         cb.sc_response = null_callback;
2951         cb.sc_private = si;
2952
2953         op->o_callback = &cb;
2954         op->o_req_dn = op->o_bd->be_suffix[0];
2955         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2956
2957         /* update contextCSN */
2958         op->o_dont_replicate = 1;
2959
2960         op->orm_modlist = &mod;
2961         op->orm_no_opattrs = 1;
2962         rc = op->o_bd->be_modify( op, &rs_modify );
2963         op->orm_no_opattrs = 0;
2964         op->o_dont_replicate = 0;
2965
2966         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2967                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2968                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2969                 /* If we replaced any old values */
2970                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2971                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2972                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2973                                                 &mod.sml_values[i] );
2974                 }
2975                 /* Handle any added values */
2976                 if ( i < mod.sml_numvals ) {
2977                         si->si_cookieState->cs_num = mod.sml_numvals;
2978                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2979                         free( si->si_cookieState->cs_sids );
2980                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2981                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2982                 }
2983
2984                 si->si_cookieState->cs_age++;
2985                 si->si_cookieAge = si->si_cookieState->cs_age;
2986         } else {
2987                 Debug( LDAP_DEBUG_ANY,
2988                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2989                         si->si_ridtxt, rs_modify.sr_err, 0 );
2990         }
2991         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2992
2993         op->o_bd = be;
2994         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2995         BER_BVZERO( &op->o_csn );
2996         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2997         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2998
2999         return rc;
3000 }
3001
3002 static void
3003 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3004         Modifications ***mret, Modifications ***mcur )
3005 {
3006         int i, j;
3007         Modifications *mod, **modtail;
3008
3009         modtail = *mret;
3010
3011         if ( old ) {
3012                 int n, o, nn, no;
3013                 struct berval **adds, **dels;
3014                 /* count old and new */
3015                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3016                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3017
3018                 /* there MUST be both old and new values */
3019                 assert( o != 0 );
3020                 assert( n != 0 );
3021                 j = 0;
3022
3023                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3024                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3025
3026                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3027                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3028
3029                 nn = n; no = o;
3030
3031                 for ( i=0; i<o; i++ ) {
3032                         for ( j=0; j<n; j++ ) {
3033                                 if ( !adds[j] )
3034                                         continue;
3035                                 if ( bvmatch( dels[i], adds[j] ) ) {
3036                                         no--;
3037                                         nn--;
3038                                         adds[j] = NULL;
3039                                         dels[i] = NULL;
3040                                         break;
3041                                 }
3042                         }
3043                 }
3044
3045                 /* Don't delete/add an objectClass, always use the replace op.
3046                  * Modify would fail if provider has replaced entry with a new,
3047                  * and the new explicitly includes a superior of a class that was
3048                  * only included implicitly in the old entry.  Ref ITS#5517.
3049                  *
3050                  * Also use replace op if attr has no equality matching rule.
3051                  * (ITS#5781)
3052                  */
3053                 if ( nn && no < o &&
3054                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3055                          !old->a_desc->ad_type->sat_equality ))
3056                         no = o;
3057
3058                 i = j;
3059                 /* all old values were deleted, just use the replace op */
3060                 if ( no == o ) {
3061                         i = j-1;
3062                 } else if ( no ) {
3063                 /* delete some values */
3064                         mod = ch_malloc( sizeof( Modifications ) );
3065                         mod->sml_op = LDAP_MOD_DELETE;
3066                         mod->sml_flags = 0;
3067                         mod->sml_desc = old->a_desc;
3068                         mod->sml_type = mod->sml_desc->ad_cname;
3069                         mod->sml_numvals = no;
3070                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3071                         if ( old->a_vals != old->a_nvals ) {
3072                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3073                         } else {
3074                                 mod->sml_nvalues = NULL;
3075                         }
3076                         j = 0;
3077                         for ( i = 0; i < o; i++ ) {
3078                                 if ( !dels[i] ) continue;
3079                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3080                                 if ( mod->sml_nvalues ) {
3081                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3082                                 }
3083                                 j++;
3084                         }
3085                         BER_BVZERO( &mod->sml_values[j] );
3086                         if ( mod->sml_nvalues ) {
3087                                 BER_BVZERO( &mod->sml_nvalues[j] );
3088                         }
3089                         *modtail = mod;
3090                         modtail = &mod->sml_next;
3091                         i = j;
3092                 }
3093                 op->o_tmpfree( dels, op->o_tmpmemctx );
3094                 /* some values were added */
3095                 if ( nn && no < o ) {
3096                         mod = ch_malloc( sizeof( Modifications ) );
3097                         mod->sml_op = LDAP_MOD_ADD;
3098                         mod->sml_flags = 0;
3099                         mod->sml_desc = old->a_desc;
3100                         mod->sml_type = mod->sml_desc->ad_cname;
3101                         mod->sml_numvals = nn;
3102                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3103                         if ( old->a_vals != old->a_nvals ) {
3104                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3105                         } else {
3106                                 mod->sml_nvalues = NULL;
3107                         }
3108                         j = 0;
3109                         for ( i = 0; i < n; i++ ) {
3110                                 if ( !adds[i] ) continue;
3111                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3112                                 if ( mod->sml_nvalues ) {
3113                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3114                                 }
3115                                 j++;
3116                         }
3117                         BER_BVZERO( &mod->sml_values[j] );
3118                         if ( mod->sml_nvalues ) {
3119                                 BER_BVZERO( &mod->sml_nvalues[j] );
3120                         }
3121                         *modtail = mod;
3122                         modtail = &mod->sml_next;
3123                         i = j;
3124                 }
3125                 op->o_tmpfree( adds, op->o_tmpmemctx );
3126         } else {
3127                 /* new attr, just use the new mod */
3128                 i = 0;
3129                 j = 1;
3130         }
3131         /* advance to next element */
3132         mod = **mcur;
3133         if ( mod ) {
3134                 if ( i != j ) {
3135                         **mcur = mod->sml_next;
3136                         *modtail = mod;
3137                         modtail = &mod->sml_next;
3138                 } else {
3139                         *mcur = &mod->sml_next;
3140                 }
3141         }
3142         *mret = modtail;
3143 }
3144
3145 static int
3146 dn_callback(
3147         Operation*      op,
3148         SlapReply*      rs )
3149 {
3150         dninfo *dni = op->o_callback->sc_private;
3151
3152         if ( rs->sr_type == REP_SEARCH ) {
3153                 if ( !BER_BVISNULL( &dni->dn ) ) {
3154                         Debug( LDAP_DEBUG_ANY,
3155                                 "dn_callback : consistency error - "
3156                                 "entryUUID is not unique\n", 0, 0, 0 );
3157                 } else {
3158                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3159                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3160                         /* If there is a new entry, see if it differs from the old.
3161                          * We compare the non-normalized values so that cosmetic changes
3162                          * in the provider are always propagated.
3163                          */
3164                         if ( dni->new_entry ) {
3165                                 Modifications **modtail, **ml;
3166                                 Attribute *old, *new;
3167                                 struct berval old_rdn, new_rdn;
3168                                 struct berval old_p, new_p;
3169                                 int is_ctx, new_sup = 0;
3170
3171                                 /* Make sure new entry is actually newer than old entry */
3172                                 old = attr_find( rs->sr_entry->e_attrs,
3173                                         slap_schema.si_ad_entryCSN );
3174                                 new = attr_find( dni->new_entry->e_attrs,
3175                                         slap_schema.si_ad_entryCSN );
3176                                 if ( new && old ) {
3177                                         int rc;
3178                                         ber_len_t len = old->a_vals[0].bv_len;
3179                                         if ( len > new->a_vals[0].bv_len )
3180                                                 len = new->a_vals[0].bv_len;
3181                                         rc = memcmp( old->a_vals[0].bv_val,
3182                                                 new->a_vals[0].bv_val, len );
3183                                         if ( rc > 0 ) {
3184                                                 Debug( LDAP_DEBUG_SYNC,
3185                                                         "dn_callback : new entry is older than ours "
3186                                                         "%s ours %s, new %s\n",
3187                                                         rs->sr_entry->e_name.bv_val,
3188                                                         old->a_vals[0].bv_val,
3189                                                         new->a_vals[0].bv_val );
3190                                                 return LDAP_SUCCESS;
3191                                         } else if ( rc == 0 ) {
3192                                                 Debug( LDAP_DEBUG_SYNC,
3193                                                         "dn_callback : entries have identical CSN "
3194                                                         "%s %s\n",
3195                                                         rs->sr_entry->e_name.bv_val,
3196                                                         old->a_vals[0].bv_val, 0 );
3197                                                 return LDAP_SUCCESS;
3198                                         }
3199                                 }
3200
3201                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3202                                         &op->o_bd->be_nsuffix[0] );
3203
3204                                 /* Did the DN change?
3205                                  * case changes in the parent are ignored,
3206                                  * we only want to know if the RDN was
3207                                  * actually changed.
3208                                  */
3209                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3210                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3211                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3212                                 dnParent( &dni->new_entry->e_nname, &new_p );
3213
3214                                 new_sup = !dn_match( &old_p, &new_p );
3215                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3216                                 {
3217                                         struct berval oldRDN, oldVal;
3218                                         AttributeDescription *ad = NULL;
3219                                         int oldpos, newpos;
3220                                         Attribute *a;
3221
3222                                         dni->renamed = 1;
3223                                         if ( new_sup )
3224                                                 dni->nnewSup = new_p;
3225
3226                                         /* See if the oldRDN was deleted */
3227                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3228                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3229                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3230                                                 oldRDN.bv_val );
3231                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3232                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3233                                         dni->oldDesc = ad;
3234                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3235                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3236                                         dni->oldNattr = a;
3237                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3238                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3239                                         if ( !a || oldpos != newpos || attr_valfind( a,
3240                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3241                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3242                                                 SLAP_MR_VALUE_OF_SYNTAX,
3243                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3244                                         {
3245                                                 dni->delOldRDN = 1;
3246                                         }
3247                                         /* Get the newRDN's desc */
3248                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3249                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3250                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3251                                         ad = NULL;
3252                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3253                                         dni->newDesc = ad;
3254
3255                                         /* A ModDN has happened, but in Refresh mode other
3256                                          * changes may have occurred before we picked it up.
3257                                          * So fallthru to regular Modify processing.
3258                                          */
3259                                 }
3260
3261                                 modtail = &dni->mods;
3262                                 ml = dni->modlist;
3263
3264                                 /* We assume that attributes are saved in the same order
3265                                  * in the remote and local databases. So if we walk through
3266                                  * the attributeDescriptions one by one they should match in
3267                                  * lock step. If not, look for an add or delete.
3268                                  */
3269                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3270                                                 old && new; )
3271                                 {
3272                                         /* If we've seen this before, use its mod now */
3273                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3274                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3275                                                 new = new->a_next;
3276                                                 continue;
3277                                         }
3278                                         /* Skip contextCSN */
3279                                         if ( is_ctx && old->a_desc ==
3280                                                 slap_schema.si_ad_contextCSN ) {
3281                                                 old = old->a_next;
3282                                                 continue;
3283                                         }
3284
3285                                         if ( old->a_desc != new->a_desc ) {
3286                                                 Modifications *mod;
3287                                                 Attribute *tmp;
3288
3289                                                 /* If it's just been re-added later,
3290                                                  * remember that we've seen it.
3291                                                  */
3292                                                 tmp = attr_find( new, old->a_desc );
3293                                                 if ( tmp ) {
3294                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3295                                                 } else {
3296                                                         /* If it's a new attribute, pull it in.
3297                                                          */
3298                                                         tmp = attr_find( old, new->a_desc );
3299                                                         if ( !tmp ) {
3300                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3301                                                                 new = new->a_next;
3302                                                                 continue;
3303                                                         }
3304                                                         /* Delete old attr */
3305                                                         mod = ch_malloc( sizeof( Modifications ) );
3306                                                         mod->sml_op = LDAP_MOD_DELETE;
3307                                                         mod->sml_flags = 0;
3308                                                         mod->sml_desc = old->a_desc;
3309                                                         mod->sml_type = mod->sml_desc->ad_cname;
3310                                                         mod->sml_numvals = 0;
3311                                                         mod->sml_values = NULL;
3312                                                         mod->sml_nvalues = NULL;
3313                                                         *modtail = mod;
3314                                                         modtail = &mod->sml_next;
3315                                                 }
3316                                                 old = old->a_next;
3317                                                 continue;
3318                                         }
3319                                         /* kludge - always update modifiersName so that it
3320                                          * stays co-located with the other mod opattrs. But only
3321                                          * if we know there are other valid mods.
3322                                          */
3323                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3324                                                 dni->mods )
3325                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3326                                         else
3327                                                 attr_cmp( op, old, new, &modtail, &ml );
3328                                         new = new->a_next;
3329                                         old = old->a_next;
3330                                 }
3331                                 *modtail = *ml;
3332                                 *ml = NULL;
3333                         }
3334                 }
3335         } else if ( rs->sr_type == REP_RESULT ) {
3336                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3337                         Debug( LDAP_DEBUG_ANY,
3338                                 "dn_callback : consistency error - "
3339                                 "entryUUID is not unique\n", 0, 0, 0 );
3340                 }
3341         }
3342
3343         return LDAP_SUCCESS;
3344 }
3345
3346 static int
3347 nonpresent_callback(
3348         Operation*      op,
3349         SlapReply*      rs )
3350 {
3351         syncinfo_t *si = op->o_callback->sc_private;
3352         Attribute *a;
3353         int count = 0;
3354         struct berval* present_uuid = NULL;
3355         struct nonpresent_entry *np_entry;
3356
3357         if ( rs->sr_type == REP_RESULT ) {
3358                 count = avl_free( si->si_presentlist, ch_free );
3359                 si->si_presentlist = NULL;
3360
3361         } else if ( rs->sr_type == REP_SEARCH ) {
3362                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3363                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3364
3365                         if ( a ) {
3366                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3367                                         syncuuid_cmp );
3368                         }
3369
3370                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3371                                 char buf[sizeof("rid=999 non")];
3372
3373                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3374                                         present_uuid ? "" : "non" );
3375
3376                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3377                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3378                         }
3379
3380                         if ( a == NULL ) return 0;
3381                 }
3382
3383                 if ( present_uuid == NULL ) {
3384                         np_entry = (struct nonpresent_entry *)
3385                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3386                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3387                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3388                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3389
3390                 } else {
3391                         avl_delete( &si->si_presentlist,
3392                                 &a->a_nvals[0], syncuuid_cmp );
3393                         ch_free( present_uuid );
3394                 }
3395         }
3396         return LDAP_SUCCESS;
3397 }
3398
3399 static int
3400 null_callback(
3401         Operation*      op,
3402         SlapReply*      rs )
3403 {
3404         if ( rs->sr_err != LDAP_SUCCESS &&
3405                 rs->sr_err != LDAP_REFERRAL &&
3406                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3407                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3408                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3409         {
3410                 Debug( LDAP_DEBUG_ANY,
3411                         "null_callback : error code 0x%x\n",
3412                         rs->sr_err, 0, 0 );
3413         }
3414         return LDAP_SUCCESS;
3415 }
3416
3417 static struct berval *
3418 slap_uuidstr_from_normalized(
3419         struct berval* uuidstr,
3420         struct berval* normalized,
3421         void *ctx )
3422 {
3423 #if 0
3424         struct berval *new;
3425         unsigned char nibble;
3426         int i, d = 0;
3427
3428         if ( normalized == NULL ) return NULL;
3429         if ( normalized->bv_len != 16 ) return NULL;
3430
3431         if ( uuidstr ) {
3432                 new = uuidstr;
3433         } else {
3434                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3435                 if ( new == NULL ) {
3436                         return NULL;
3437                 }
3438         }
3439
3440         new->bv_len = 36;
3441
3442         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3443                 if ( new != uuidstr ) {
3444                         slap_sl_free( new, ctx );
3445                 }
3446                 return NULL;
3447         }
3448
3449         for ( i = 0; i < 16; i++ ) {
3450                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3451                         new->bv_val[(i<<1)+d] = '-';
3452                         d += 1;
3453                 }
3454
3455                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3456                 if ( nibble < 10 ) {
3457                         new->bv_val[(i<<1)+d] = nibble + '0';
3458                 } else {
3459                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3460                 }
3461
3462                 nibble = (normalized->bv_val[i]) & 0xF;
3463                 if ( nibble < 10 ) {
3464                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3465                 } else {
3466                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3467                 }
3468         }
3469
3470         new->bv_val[new->bv_len] = '\0';
3471         return new;
3472 #endif
3473
3474         struct berval   *new;
3475         int             rc = 0;
3476
3477         if ( normalized == NULL ) return NULL;
3478         if ( normalized->bv_len != 16 ) return NULL;
3479
3480         if ( uuidstr ) {
3481                 new = uuidstr;
3482
3483         } else {
3484                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3485                 if ( new == NULL ) {
3486                         return NULL;
3487                 }
3488         }
3489
3490         new->bv_len = 36;
3491
3492         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3493                 rc = 1;
3494                 goto done;
3495         }
3496
3497         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3498                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3499
3500 done:;
3501         if ( rc == -1 ) {
3502                 if ( new != NULL ) {
3503                         if ( new->bv_val != NULL ) {
3504                                 slap_sl_free( new->bv_val, ctx );
3505                         }
3506
3507                         if ( new != uuidstr ) {
3508                                 slap_sl_free( new, ctx );
3509                         }
3510                 }
3511                 new = NULL;
3512
3513         } else {
3514                 new->bv_len = rc;
3515         }
3516
3517         return new;
3518 }
3519
3520 static int
3521 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3522 {
3523         const struct berval *uuid1 = v_uuid1;
3524         const struct berval *uuid2 = v_uuid2;
3525         int rc = uuid1->bv_len - uuid2->bv_len;
3526         if ( rc ) return rc;
3527         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3528 }
3529
3530 void
3531 syncinfo_free( syncinfo_t *sie, int free_all )
3532 {
3533         syncinfo_t *si_next;
3534
3535         if ( free_all && sie->si_cookieState ) {
3536                 ch_free( sie->si_cookieState->cs_sids );
3537                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3538                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3539                 ch_free( sie->si_cookieState );
3540         }
3541         do {
3542                 si_next = sie->si_next;
3543
3544                 if ( sie->si_ld ) {
3545                         if ( sie->si_conn ) {
3546                                 connection_client_stop( sie->si_conn );
3547                                 sie->si_conn = NULL;
3548                         }
3549                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3550                 }
3551
3552                 /* re-fetch it, in case it was already removed */
3553                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3554                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3555                 if ( sie->si_re ) {
3556                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3557                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3558                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3559                 }
3560
3561                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3562                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3563
3564                 bindconf_free( &sie->si_bindconf );
3565
3566                 if ( sie->si_filterstr.bv_val ) {
3567                         ch_free( sie->si_filterstr.bv_val );
3568                 }
3569                 if ( sie->si_logfilterstr.bv_val ) {
3570                         ch_free( sie->si_logfilterstr.bv_val );
3571                 }
3572                 if ( sie->si_base.bv_val ) {
3573                         ch_free( sie->si_base.bv_val );
3574                 }
3575                 if ( sie->si_logbase.bv_val ) {
3576                         ch_free( sie->si_logbase.bv_val );
3577                 }
3578                 if ( sie->si_attrs ) {
3579                         int i = 0;
3580                         while ( sie->si_attrs[i] != NULL ) {
3581                                 ch_free( sie->si_attrs[i] );
3582                                 i++;
3583                         }
3584                         ch_free( sie->si_attrs );
3585                 }
3586                 if ( sie->si_exattrs ) {
3587                         int i = 0;
3588                         while ( sie->si_exattrs[i] != NULL ) {
3589                                 ch_free( sie->si_exattrs[i] );
3590                                 i++;
3591                         }
3592                         ch_free( sie->si_exattrs );
3593                 }
3594                 if ( sie->si_anlist ) {
3595                         int i = 0;
3596                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3597                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3598                                 i++;
3599                         }
3600                         ch_free( sie->si_anlist );
3601                 }
3602                 if ( sie->si_exanlist ) {
3603                         int i = 0;
3604                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3605                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3606                                 i++;
3607                         }
3608                         ch_free( sie->si_exanlist );
3609                 }
3610                 if ( sie->si_retryinterval ) {
3611                         ch_free( sie->si_retryinterval );
3612                 }
3613                 if ( sie->si_retrynum ) {
3614                         ch_free( sie->si_retrynum );
3615                 }
3616                 if ( sie->si_retrynum_init ) {
3617                         ch_free( sie->si_retrynum_init );
3618                 }
3619                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3620                 if ( sie->si_presentlist ) {
3621                     avl_free( sie->si_presentlist, ch_free );
3622                 }
3623                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3624                         struct nonpresent_entry* npe;
3625                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3626                         LDAP_LIST_REMOVE( npe, npe_link );
3627                         if ( npe->npe_name ) {
3628                                 if ( npe->npe_name->bv_val ) {
3629                                         ch_free( npe->npe_name->bv_val );
3630                                 }
3631                                 ch_free( npe->npe_name );
3632                         }
3633                         if ( npe->npe_nname ) {
3634                                 if ( npe->npe_nname->bv_val ) {
3635                                         ch_free( npe->npe_nname->bv_val );
3636                                 }
3637                                 ch_free( npe->npe_nname );
3638                         }
3639                         ch_free( npe );
3640                 }
3641                 ch_free( sie );
3642                 sie = si_next;
3643         } while ( free_all && si_next );
3644 }
3645
3646
3647
3648 /* NOTE: used & documented in slapd.conf(5) */
3649 #define IDSTR                   "rid"
3650 #define PROVIDERSTR             "provider"
3651 #define SCHEMASTR               "schemachecking"
3652 #define FILTERSTR               "filter"
3653 #define SEARCHBASESTR           "searchbase"
3654 #define SCOPESTR                "scope"
3655 #define ATTRSONLYSTR            "attrsonly"
3656 #define ATTRSSTR                "attrs"
3657 #define TYPESTR                 "type"
3658 #define INTERVALSTR             "interval"
3659 #define RETRYSTR                "retry"
3660 #define SLIMITSTR               "sizelimit"
3661 #define TLIMITSTR               "timelimit"
3662 #define SYNCDATASTR             "syncdata"
3663 #define LOGBASESTR              "logbase"
3664 #define LOGFILTERSTR    "logfilter"
3665
3666 /* FIXME: undocumented */
3667 #define EXATTRSSTR              "exattrs"
3668 #define MANAGEDSAITSTR          "manageDSAit"
3669
3670 /* mandatory */
3671 #define GOT_ID                  0x0001
3672 #define GOT_PROVIDER    0x0002
3673 #define GOT_BASE                0x0004
3674
3675 /* check */
3676 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3677
3678 static struct {
3679         struct berval key;
3680         int val;
3681 } scopes[] = {
3682         { BER_BVC("base"), LDAP_SCOPE_BASE },
3683         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3684         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3685         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3686         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3687         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3688         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3689         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3690         { BER_BVNULL, 0 }
3691 };
3692
3693 static slap_verbmasks datamodes[] = {
3694         { BER_BVC("default"), SYNCDATA_DEFAULT },
3695         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3696         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3697         { BER_BVNULL, 0 }
3698 };
3699
3700 static int
3701 parse_syncrepl_line(
3702         ConfigArgs      *c,
3703         syncinfo_t      *si )
3704 {
3705         int     gots = 0;
3706         int     i;
3707         char    *val;
3708
3709         for ( i = 1; i < c->argc; i++ ) {
3710                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3711                                         STRLENOF( IDSTR "=" ) ) )
3712                 {
3713                         int tmp;
3714                         /* '\0' string terminator accounts for '=' */
3715                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3716                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3717                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3718                                         "Error: parse_syncrepl_line: "
3719                                         "unable to parse syncrepl id \"%s\"", val );
3720                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3721                                 return -1;
3722                         }
3723                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3724                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3725                                         "Error: parse_syncrepl_line: "
3726                                         "syncrepl id %d is out of range [0..4095]", tmp );
3727                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3728                                 return -1;
3729                         }
3730                         si->si_rid = tmp;
3731                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3732                         gots |= GOT_ID;
3733                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3734                                         STRLENOF( PROVIDERSTR "=" ) ) )
3735                 {
3736                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3737                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3738                         gots |= GOT_PROVIDER;
3739                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3740                                         STRLENOF( SCHEMASTR "=" ) ) )
3741                 {
3742                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3743                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3744                                 si->si_schemachecking = 1;
3745                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3746                                 si->si_schemachecking = 0;
3747                         } else {
3748                                 si->si_schemachecking = 1;
3749                         }
3750                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3751                                         STRLENOF( FILTERSTR "=" ) ) )
3752                 {
3753                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3754                         if ( si->si_filterstr.bv_val )
3755                                 ch_free( si->si_filterstr.bv_val );
3756                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3757                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3758                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3759                 {
3760                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3761                         if ( si->si_logfilterstr.bv_val )
3762                                 ch_free( si->si_logfilterstr.bv_val );
3763                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3764                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3765                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3766                 {
3767                         struct berval   bv;
3768                         int             rc;
3769
3770                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3771                         if ( si->si_base.bv_val ) {
3772                                 ch_free( si->si_base.bv_val );
3773                         }
3774                         ber_str2bv( val, 0, 0, &bv );
3775                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3776                         if ( rc != LDAP_SUCCESS ) {
3777                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3778                                         "Invalid base DN \"%s\": %d (%s)",
3779                                         val, rc, ldap_err2string( rc ) );
3780                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3781                                 return -1;
3782                         }
3783                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3784                                 ch_free( si->si_base.bv_val );
3785                                 BER_BVZERO( &si->si_base );
3786                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3787                                         "Base DN \"%s\" is not within the database naming context",
3788                                         val );
3789                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3790                                 return -1;
3791                         }
3792                         gots |= GOT_BASE;
3793                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3794                                         STRLENOF( LOGBASESTR "=" ) ) )
3795                 {
3796                         struct berval   bv;
3797                         int             rc;
3798
3799                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3800                         if ( si->si_logbase.bv_val ) {
3801                                 ch_free( si->si_logbase.bv_val );
3802                         }
3803                         ber_str2bv( val, 0, 0, &bv );
3804                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3805                         if ( rc != LDAP_SUCCESS ) {
3806                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3807                                         "Invalid logbase DN \"%s\": %d (%s)",
3808                                         val, rc, ldap_err2string( rc ) );
3809                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3810                                 return -1;
3811                         }
3812                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3813                                         STRLENOF( SCOPESTR "=" ) ) )
3814                 {
3815                         int j;
3816                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3817                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3818                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3819                                         si->si_scope = scopes[j].val;
3820                                         break;
3821                                 }
3822                         }
3823                         if ( BER_BVISNULL(&scopes[j].key) ) {
3824                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3825                                         "Error: parse_syncrepl_line: "
3826                                         "unknown scope \"%s\"", val);
3827                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3828                                 return -1;
3829                         }
3830                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3831                                         STRLENOF( ATTRSONLYSTR ) ) )
3832                 {
3833                         si->si_attrsonly = 1;
3834                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3835                                         STRLENOF( ATTRSSTR "=" ) ) )
3836                 {
3837                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3838                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3839                                 char *attr_fname;
3840                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3841                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3842                                 if ( si->si_anlist == NULL ) {
3843                                         ch_free( attr_fname );
3844                                         return -1;
3845                                 }
3846                                 si->si_anfile = attr_fname;
3847                         } else {
3848                                 char *str, *s, *next;
3849                                 const char *delimstr = " ,\t";
3850                                 str = ch_strdup( val );
3851                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3852                                                 s != NULL;
3853                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3854                                 {
3855                                         if ( strlen(s) == 1 && *s == '*' ) {
3856                                                 si->si_allattrs = 1;
3857                                                 val[ s - str ] = delimstr[0];
3858                                         }
3859                                         if ( strlen(s) == 1 && *s == '+' ) {
3860                                                 si->si_allopattrs = 1;
3861                                                 val [ s - str ] = delimstr[0];
3862                                         }
3863                                 }
3864                                 ch_free( str );
3865                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3866                                 if ( si->si_anlist == NULL ) {
3867                                         return -1;
3868                                 }
3869                         }
3870                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3871                                         STRLENOF( EXATTRSSTR "=" ) ) )
3872                 {
3873                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3874                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3875                                 char *attr_fname;
3876                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3877                                 si->si_exanlist = file2anlist(
3878                                         si->si_exanlist, attr_fname, " ,\t" );
3879                                 if ( si->si_exanlist == NULL ) {
3880                                         ch_free( attr_fname );
3881                                         return -1;
3882                                 }
3883                                 ch_free( attr_fname );
3884                         } else {
3885                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3886                                 if ( si->si_exanlist == NULL ) {
3887                                         return -1;
3888                                 }
3889                         }
3890                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3891                                         STRLENOF( TYPESTR "=" ) ) )
3892                 {
3893                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3894                         if ( !strncasecmp( val, "refreshOnly",
3895                                                 STRLENOF("refreshOnly") ) )
3896                         {
3897                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3898                         } else if ( !strncasecmp( val, "refreshAndPersist",
3899                                                 STRLENOF("refreshAndPersist") ) )
3900                         {
3901                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3902                                 si->si_interval = 60;
3903                         } else {
3904                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3905                                         "Error: parse_syncrepl_line: "
3906                                         "unknown sync type \"%s\"", val);
3907                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3908                                 return -1;
3909                         }
3910                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3911                                         STRLENOF( INTERVALSTR "=" ) ) )
3912                 {
3913                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3914                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3915                                 si->si_interval = 0;
3916                         } else if ( strchr( val, ':' ) != NULL ) {
3917                                 char *next, *ptr = val;
3918                                 int dd, hh, mm, ss;
3919
3920                                 dd = strtol( ptr, &next, 10 );
3921                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3922                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3923                                                 "Error: parse_syncrepl_line: "
3924                                                 "invalid interval \"%s\", unable to parse days", val );
3925                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3926                                         return -1;
3927                                 }
3928                                 ptr = next + 1;
3929                                 hh = strtol( ptr, &next, 10 );
3930                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3931                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3932                                                 "Error: parse_syncrepl_line: "
3933                                                 "invalid interval \"%s\", unable to parse hours", val );
3934                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3935                                         return -1;
3936                                 }
3937                                 ptr = next + 1;
3938                                 mm = strtol( ptr, &next, 10 );
3939                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3940                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3941                                                 "Error: parse_syncrepl_line: "
3942                                                 "invalid interval \"%s\", unable to parse minutes", val );
3943                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3944                                         return -1;
3945                                 }
3946                                 ptr = next + 1;
3947                                 ss = strtol( ptr, &next, 10 );
3948                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3949                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3950                                                 "Error: parse_syncrepl_line: "
3951                                                 "invalid interval \"%s\", unable to parse seconds", val );
3952                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3953                                         return -1;
3954                                 }
3955                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3956                         } else {
3957                                 unsigned long   t;
3958
3959                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3960                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3961                                                 "Error: parse_syncrepl_line: "
3962                                                 "invalid interval \"%s\"", val );
3963                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3964                                         return -1;
3965                                 }
3966                                 si->si_interval = (time_t)t;
3967                         }
3968                         if ( si->si_interval < 0 ) {
3969                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3970                                         "Error: parse_syncrepl_line: "
3971                                         "invalid interval \"%ld\"",
3972                                         (long) si->si_interval);
3973                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3974                                 return -1;
3975                         }
3976                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3977                                         STRLENOF( RETRYSTR "=" ) ) )
3978                 {
3979                         char **retry_list;
3980                         int j, k, n;
3981
3982                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3983                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3984                         retry_list[0] = NULL;
3985
3986                         slap_str2clist( &retry_list, val, " ,\t" );
3987
3988                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3989                         n = k / 2;
3990                         if ( k % 2 ) {
3991                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3992                                         "Error: incomplete syncrepl retry list" );
3993                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3994                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3995                                         ch_free( retry_list[k] );
3996                                 }
3997                                 ch_free( retry_list );
3998                                 return 1;
3999                         }
4000                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
4001                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
4002                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
4003                         for ( j = 0; j < n; j++ ) {
4004                                 unsigned long   t;
4005                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
4006                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4007                                                 "Error: invalid retry interval \"%s\" (#%d)",
4008                                                 retry_list[j*2], j );
4009                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4010                                         /* do some cleanup */
4011                                         return 1;
4012                                 }
4013                                 si->si_retryinterval[j] = (time_t)t;
4014                                 if ( *retry_list[j*2+1] == '+' ) {
4015                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
4016                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
4017                                         j++;
4018                                         break;
4019                                 } else {
4020                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
4021                                                         || si->si_retrynum_init[j] <= 0 )
4022                                         {
4023                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4024                                                         "Error: invalid initial retry number \"%s\" (#%d)",
4025                                                         retry_list[j*2+1], j );
4026                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4027                                                 /* do some cleanup */
4028                                                 return 1;
4029                                         }
4030                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
4031                                                         || si->si_retrynum[j] <= 0 )
4032                                         {
4033                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4034                                                         "Error: invalid retry number \"%s\" (#%d)",
4035                                                         retry_list[j*2+1], j );
4036                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4037                                                 /* do some cleanup */
4038                                                 return 1;
4039                                         }
4040                                 }
4041                         }
4042                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
4043                         si->si_retrynum[j] = RETRYNUM_TAIL;
4044                         si->si_retryinterval[j] = 0;
4045
4046                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
4047                                 ch_free( retry_list[k] );
4048                         }
4049                         ch_free( retry_list );
4050                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4051                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4052                 {
4053                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4054                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4055                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4056                         {
4057                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4058                                         "invalid manageDSAit value \"%s\".\n",
4059                                         val );
4060                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4061                                 return 1;
4062                         }
4063                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4064                                         STRLENOF( SLIMITSTR "=") ) )
4065                 {
4066                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4067                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4068                                 si->si_slimit = 0;
4069
4070                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4071                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4072                                         "invalid size limit value \"%s\".\n",
4073                                         val );
4074                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4075                                 return 1;
4076                         }
4077                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4078                                         STRLENOF( TLIMITSTR "=" ) ) )
4079                 {
4080                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4081                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4082                                 si->si_tlimit = 0;
4083
4084                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4085                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4086                                         "invalid time limit value \"%s\".\n",
4087                                         val );
4088                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4089                                 return 1;
4090                         }
4091                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4092                                         STRLENOF( SYNCDATASTR "=" ) ) )
4093                 {
4094                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4095                         si->si_syncdata = verb_to_mask( val, datamodes );
4096                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4097                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4098                                 "Error: parse_syncrepl_line: "
4099                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4100                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4101                         return -1;
4102                 }
4103         }
4104
4105         if ( gots != GOT_ALL ) {
4106                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4107                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4108                         gots & GOT_ID ? "" : " "IDSTR,
4109                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4110                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
4111                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4112                 return -1;
4113         }
4114
4115         return 0;
4116 }
4117
4118 static int
4119 add_syncrepl(
4120         ConfigArgs *c )
4121 {
4122         syncinfo_t *si;
4123         int     rc = 0;
4124
4125         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4126                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4127                         "operations required for syncrepl", c->be->be_type );
4128                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4129                 return 1;
4130         }
4131         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4132                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4133                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4134                 return 1;
4135         }
4136         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4137
4138         if ( si == NULL ) {
4139                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4140                 return 1;
4141         }
4142
4143         si->si_bindconf.sb_tls = SB_TLS_OFF;
4144         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4145         si->si_schemachecking = 0;
4146         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4147                 &si->si_filterstr );
4148         si->si_base.bv_val = NULL;
4149         si->si_scope = LDAP_SCOPE_SUBTREE;
4150         si->si_attrsonly = 0;
4151         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4152         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4153         si->si_attrs = NULL;
4154         si->si_allattrs = 0;
4155         si->si_allopattrs = 0;
4156         si->si_exattrs = NULL;
4157         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4158         si->si_interval = 86400;
4159         si->si_retryinterval = NULL;
4160         si->si_retrynum_init = NULL;
4161         si->si_retrynum = NULL;
4162         si->si_manageDSAit = 0;
4163         si->si_tlimit = 0;
4164         si->si_slimit = 0;
4165
4166         si->si_presentlist = NULL;
4167         LDAP_LIST_INIT( &si->si_nonpresentlist );
4168         ldap_pvt_thread_mutex_init( &si->si_mutex );
4169
4170         rc = parse_syncrepl_line( c, si );
4171
4172         if ( rc == 0 ) {
4173                 /* Must be LDAPv3 because we need controls */
4174                 switch ( si->si_bindconf.sb_version ) {
4175                 case 0:
4176                         /* not explicitly set */
4177                         si->si_bindconf.sb_version = LDAP_VERSION3;
4178                         break;
4179                 case 3:
4180                         /* explicitly set */
4181                         break;
4182                 default:
4183                         Debug( LDAP_DEBUG_ANY,
4184                                 "version %d incompatible with syncrepl\n",
4185                                 si->si_bindconf.sb_version, 0, 0 );
4186                         syncinfo_free( si, 0 );
4187                         return 1;
4188                 }
4189
4190                 si->si_be = c->be;
4191                 if ( slapMode & SLAP_SERVER_MODE ) {
4192                         Listener **l = slapd_get_listeners();
4193                         int isMe = 0;
4194
4195                         /* check if URL points to current server. If so, ignore
4196                          * this configuration. We require an exact match. Just
4197                          * in case they really want to do this, they can vary
4198                          * the case of the URL to allow it.
4199                          */
4200                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4201                                 int i;
4202                                 for ( i=0; l[i]; i++ ) {
4203                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4204                                                 isMe = 1;
4205                                                 break;
4206                                         }
4207                                 }
4208                         }
4209
4210                         if ( !isMe ) {
4211                                 init_syncrepl( si );
4212                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4213                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4214                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4215                                         si->si_ridtxt );
4216                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4217                                 if ( si->si_re )
4218                                         rc = config_sync_shadow( c ) ? -1 : 0;
4219                                 else
4220                                         rc = -1;
4221                         }
4222                 } else {
4223                         /* mirrormode still needs to see this flag in tool mode */
4224                         rc = config_sync_shadow( c ) ? -1 : 0;
4225                 }
4226         }
4227
4228 #ifdef HAVE_TLS
4229         /* Use main slapd defaults */
4230         bindconf_tls_defaults( &si->si_bindconf );
4231 #endif
4232         if ( rc < 0 ) {
4233                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4234                 syncinfo_free( si, 0 );
4235                 return 1;
4236         } else {
4237                 Debug( LDAP_DEBUG_CONFIG,
4238                         "Config: ** successfully added syncrepl \"%s\"\n",
4239                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4240                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4241                 if ( c->be->be_syncinfo ) {
4242                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4243                 } else {
4244                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4245                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4246                 }
4247                 si->si_next = c->be->be_syncinfo;
4248                 c->be->be_syncinfo = si;
4249                 return 0;
4250         }
4251 }
4252
4253 static void
4254 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4255 {
4256         struct berval bc, uri;
4257         char buf[BUFSIZ*2], *ptr;
4258         ber_len_t len;
4259         int i;
4260 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4261
4262         BER_BVZERO( bv );
4263
4264         /* temporarily inhibit bindconf from printing URI */
4265         uri = si->si_bindconf.sb_uri;
4266         BER_BVZERO( &si->si_bindconf.sb_uri );
4267         si->si_bindconf.sb_version = 0;
4268         bindconf_unparse( &si->si_bindconf, &bc );
4269         si->si_bindconf.sb_uri = uri;
4270         si->si_bindconf.sb_version = LDAP_VERSION3;
4271
4272         ptr = buf;
4273         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4274         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4275                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4276         if ( len >= sizeof( buf ) ) return;
4277         ptr += len;
4278         if ( !BER_BVISNULL( &bc ) ) {
4279                 if ( WHATSLEFT <= bc.bv_len ) {
4280                         free( bc.bv_val );
4281                         return;
4282                 }
4283                 ptr = lutil_strcopy( ptr, bc.bv_val );
4284                 free( bc.bv_val );
4285         }
4286         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4287                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4288                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4289                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4290                 *ptr++ = '"';
4291         }
4292         if ( !BER_BVISNULL( &si->si_base ) ) {
4293                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4294                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4295                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4296                 *ptr++ = '"';
4297         }
4298         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4299                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4300                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4301                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4302                 *ptr++ = '"';
4303         }
4304         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4305                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4306                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4307                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4308                 *ptr++ = '"';
4309         }
4310         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4311                 if ( si->si_scope == scopes[i].val ) {
4312                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4313                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4314                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4315                         break;
4316                 }
4317         }
4318         if ( si->si_attrsonly ) {
4319                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4320                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4321         }
4322         if ( si->si_anfile ) {
4323                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4324                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4325                 ptr = lutil_strcopy( ptr, si->si_anfile );
4326                 *ptr++ = '"';
4327         } else if ( si->si_allattrs || si->si_allopattrs ||
4328                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4329         {
4330                 char *old;
4331
4332                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4333                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4334                 old = ptr;
4335                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4336                 if ( ptr == NULL ) return;
4337                 if ( si->si_allattrs ) {
4338                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4339                         if ( old != ptr ) *ptr++ = ',';
4340                         *ptr++ = '*';
4341                 }
4342                 if ( si->si_allopattrs ) {
4343                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4344                         if ( old != ptr ) *ptr++ = ',';
4345                         *ptr++ = '+';
4346                 }
4347                 *ptr++ = '"';
4348         }
4349         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4350                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4351                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4352                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4353                 if ( ptr == NULL ) return;
4354         }
4355         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4356         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4357         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4358
4359         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4360         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4361         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4362                 "refreshAndPersist" : "refreshOnly" );
4363
4364         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4365                 int dd, hh, mm, ss;
4366
4367                 dd = si->si_interval;
4368                 ss = dd % 60;
4369                 dd /= 60;
4370                 mm = dd % 60;
4371                 dd /= 60;
4372                 hh = dd % 24;
4373                 dd /= 24;
4374                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4375                         INTERVALSTR, dd, hh, mm, ss );
4376                 if ( len >= WHATSLEFT ) return;
4377                 ptr += len;
4378         } else if ( si->si_retryinterval ) {
4379                 const char *space = "";
4380                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4381                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4382                 for (i=0; si->si_retryinterval[i]; i++) {
4383                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4384                                 (long) si->si_retryinterval[i] );
4385                         space = " ";
4386                         if ( WHATSLEFT - 1 <= len ) return;
4387                         ptr += len;
4388                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4389                                 *ptr++ = '+';
4390                         else {
4391                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4392                                 if ( WHATSLEFT <= len ) return;
4393                                 ptr += len;
4394                         }
4395                 }
4396                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4397                 *ptr++ = '"';
4398         }
4399
4400         if ( si->si_slimit ) {
4401                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4402                 if ( WHATSLEFT <= len ) return;
4403                 ptr += len;
4404         }
4405
4406         if ( si->si_tlimit ) {
4407                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4408                 if ( WHATSLEFT <= len ) return;
4409                 ptr += len;
4410         }
4411
4412         if ( si->si_syncdata ) {
4413                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4414                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4415                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4416                         ptr = lutil_strcopy( ptr, bc.bv_val );
4417                 }
4418         }
4419         bc.bv_len = ptr - buf;
4420         bc.bv_val = buf;
4421         ber_dupbv( bv, &bc );
4422 }
4423
4424 int
4425 syncrepl_config( ConfigArgs *c )
4426 {
4427         if (c->op == SLAP_CONFIG_EMIT) {
4428                 if ( c->be->be_syncinfo ) {
4429                         struct berval bv;
4430                         syncinfo_t *si;
4431
4432                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4433                                 syncrepl_unparse( si, &bv );
4434                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4435                         }
4436                         return 0;
4437                 }
4438                 return 1;
4439         } else if ( c->op == LDAP_MOD_DELETE ) {
4440                 cookie_state *cs = NULL;
4441                 if ( c->be->be_syncinfo ) {
4442                         syncinfo_t *si, **sip;
4443                         int i;
4444
4445                         cs = c->be->be_syncinfo->si_cookieState;
4446                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4447                                 si = *sip;
4448                                 if ( c->valx == -1 || i == c->valx ) {
4449                                         int isrunning = 0;
4450                                         *sip = si->si_next;
4451                                         /* If the task is currently active, we have to leave
4452                                          * it running. It will exit on its own. This will only
4453                                          * happen when running on the cn=config DB.
4454                                          */
4455                                         if ( si->si_re ) {
4456                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4457                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4458                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4459                                         }
4460                                         if ( si->si_re && isrunning ) {
4461                                                 si->si_ctype = 0;
4462                                         } else {
4463                                                 syncinfo_free( si, 0 );
4464                                         }
4465                                         if ( i == c->valx )
4466                                                 break;
4467                                 } else {
4468                                         sip = &si->si_next;
4469                                 }
4470                         }
4471                 }
4472                 if ( !c->be->be_syncinfo ) {
4473                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4474                         if ( cs ) {
4475                                 ber_bvarray_free( cs->cs_vals );
4476                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4477                                 ch_free( cs );
4478                         }
4479                 }
4480                 return 0;
4481         }
4482         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4483                 Debug(LDAP_DEBUG_ANY, "%s: "
4484                         "syncrepl: database already shadowed.\n",
4485                         c->log, 0, 0);
4486                 return(1);
4487         } else {
4488                 return add_syncrepl( c );
4489         }
4490 }