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 2003-2009 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         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[2], *ctrls[3];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 421                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 422                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 423                 c[1].ldctl_iscritical = 1;
 424                 ctrls[1] = &c[1];
 425                 ctrls[2] = NULL;
 426         } else {
 427                 ctrls[1] = NULL;
 428         }
 429
 430         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 431                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 432         ber_free_buf( ber );
 433         return rc;
 434 }
 435
 436 static int
 437 check_syncprov(
 438         Operation *op,
 439         syncinfo_t *si )
 440 {
 441         AttributeName at[2];
 442         Attribute a = {0};
 443         Entry e = {0};
 444         SlapReply rs = {0};
 445         int i, j, changed = 0;
 446
 447         /* Look for contextCSN from syncprov overlay. If
 448          * there's no overlay, this will be a no-op. That means
 449          * this is a pure consumer, so local changes will not be
 450          * allowed, and all changes will already be reflected in
 451          * the cookieState.
 452          */
 453         a.a_desc = slap_schema.si_ad_contextCSN;
 454         e.e_attrs = &a;
 455         e.e_name = op->o_bd->be_suffix[0];
 456         e.e_nname = op->o_bd->be_nsuffix[0];
 457         at[0].an_name = a.a_desc->ad_cname;
 458         at[0].an_desc = a.a_desc;
 459         BER_BVZERO( &at[1].an_name );
 460         rs.sr_entry = &e;
 461         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 462         rs.sr_attrs = at;
 463         op->o_req_dn = e.e_name;
 464         op->o_req_ndn = e.e_nname;
 465
 466         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 467         i = backend_operational( op, &rs );
 468         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 469                 int num = a.a_numvals;
 470                 /* check for differences */
 471                 if ( num != si->si_cookieState->cs_num ) {
 472                         changed = 1;
 473                 } else {
 474                         for ( i=0; i<num; i++ ) {
 475                                 if ( ber_bvcmp( &a.a_nvals[i],
 476                                         &si->si_cookieState->cs_vals[i] )) {
 477                                         changed = 1;
 478                                         break;
 479                                 }
 480                         }
 481                 }
 482                 if ( changed ) {
 483                         ber_bvarray_free( si->si_cookieState->cs_vals );
 484                         ch_free( si->si_cookieState->cs_sids );
 485                         si->si_cookieState->cs_num = num;
 486                         si->si_cookieState->cs_vals = a.a_nvals;
 487                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 488                                 num, NULL );
 489                         si->si_cookieState->cs_age++;
 490                 } else {
 491                         ber_bvarray_free( a.a_nvals );
 492                 }
 493                 ber_bvarray_free( a.a_vals );
 494         }
 495         /* See if the cookieState has changed due to anything outside
 496          * this particular consumer. That includes other consumers in
 497          * the same context, or local changes detected above.
 498          */
 499         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 500                 si->si_cookieState->cs_age ) {
 501                 if ( !si->si_syncCookie.numcsns ) {
 502                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 503                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 504                                 si->si_cookieState->cs_vals, NULL );
 505                         changed = 1;
 506                 } else {
 507                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 508                                 /* bogus, just dup everything */
 509                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 510                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 511                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 512                                                 si->si_cookieState->cs_vals, NULL );
 513                                         changed = 1;
 514                                         break;
 515                                 }
 516                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 517                                         if ( si->si_syncCookie.sids[i] !=
 518                                                 si->si_cookieState->cs_sids[j] )
 519                                                 continue;
 520                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 521                                                 &si->si_cookieState->cs_vals[j] ))
 522                                                 break;
 523                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 524                                                 &si->si_cookieState->cs_vals[j] );
 525                                         changed = 1;
 526                                         break;
 527                                 }
 528                         }
 529                 }
 530         }
 531         if ( changed ) {
 532                 si->si_cookieAge = si->si_cookieState->cs_age;
 533                 ch_free( si->si_syncCookie.octet_str.bv_val );
 534                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 535                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 536                         si->si_syncCookie.sid );
 537         }
 538         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 539         return changed;
 540 }
 541
 542 static int
 543 do_syncrep1(
 544         Operation *op,
 545         syncinfo_t *si )
 546 {
 547         int     rc;
 548         int cmdline_cookie_found = 0;
 549
 550         struct sync_cookie      *sc = NULL;
 551 #ifdef HAVE_TLS
 552         void    *ssl;
 553 #endif
 554
 555         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 556         if ( rc != LDAP_SUCCESS ) {
 557                 goto done;
 558         }
 559         op->o_protocol = LDAP_VERSION3;
 560
 561         /* Set SSF to strongest of TLS, SASL SSFs */
 562         op->o_sasl_ssf = 0;
 563         op->o_tls_ssf = 0;
 564         op->o_transport_ssf = 0;
 565 #ifdef HAVE_TLS
 566         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 567                 == LDAP_SUCCESS && ssl != NULL )
 568         {
 569                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 570         }
 571 #endif /* HAVE_TLS */
 572         {
 573                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 574                                                   to use sasl_ssf_t but currently uses ber_len_t */
 575                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 576                 op->o_sasl_ssf = ssf;
 577         }
 578         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 579                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 580
 581         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 582
 583         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 584         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 585
 586         si->si_syncCookie.rid = si->si_rid;
 587
 588         /* whenever there are multiple data sources possible, advertise sid */
 589         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 590                 slap_serverID : -1;
 591
 592         /* We've just started up, or the remote server hasn't sent us
 593          * any meaningful state.
 594          */
 595         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 596                 int i;
 597
 598                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 599                         if ( si->si_rid == sc->rid ) {
 600                                 cmdline_cookie_found = 1;
 601                                 break;
 602                         }
 603                 }
 604
 605                 if ( cmdline_cookie_found ) {
 606                         /* cookie is supplied in the command line */
 607
 608                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 609
 610                         /* ctxcsn wasn't parsed yet, do it now */
 611                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 612                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 613                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 614                         slap_sync_cookie_free( sc, 1 );
 615                 } else {
 616                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 617                         if ( !si->si_cookieState->cs_num ) {
 618                                 /* get contextCSN shadow replica from database */
 619                                 BerVarray csn = NULL;
 620                                 void *ctx = op->o_tmpmemctx;
 621
 622                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 623                                 op->o_req_dn = op->o_req_ndn;
 624
 625                                 /* try to read stored contextCSN */
 626                                 op->o_tmpmemctx = NULL;
 627                                 backend_attribute( op, NULL, &op->o_req_ndn,
 628                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 629                                 op->o_tmpmemctx = ctx;
 630                                 if ( csn ) {
 631                                         si->si_cookieState->cs_vals = csn;
 632                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 633                                         si->si_cookieState->cs_num = i;
 634                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 635                                 }
 636                         }
 637                         if ( si->si_cookieState->cs_num ) {
 638                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 639                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 640                                         si->si_cookieState->cs_vals, NULL )) {
 641                                         rc = LDAP_NO_MEMORY;
 642                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 643                                         goto done;
 644                                 }
 645                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 646                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 647                                         sizeof(int) );
 648                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 649                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 650                         }
 651                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 652                 }
 653
 654                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 655                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 656                         si->si_syncCookie.sid );
 657         } else {
 658                 /* Look for contextCSN from syncprov overlay. */
 659                 check_syncprov( op, si );
 660         }
 661
 662         si->si_refreshDone = 0;
 663
 664         rc = ldap_sync_search( si, op->o_tmpmemctx );
 665
 666         if( rc != LDAP_SUCCESS ) {
 667                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 668                         "ldap_search_ext: %s (%d)\n",
 669                         si->si_ridtxt, ldap_err2string( rc ), rc );
 670         }
 671
 672 done:
 673         if ( rc ) {
 674                 if ( si->si_ld ) {
 675                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 676                         si->si_ld = NULL;
 677                 }
 678         }
 679
 680         return rc;
 681 }
 682
 683 static int
 684 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 685 {
 686         int i, j, match = 0;
 687         const char *text;
 688
 689         *which = 0;
 690
 691         if ( sc1->numcsns < sc2->numcsns ) {
 692                 *which = sc1->numcsns;
 693                 return -1;
 694         }
 695
 696         for (j=0; j<sc2->numcsns; j++) {
 697                 for (i=0; i<sc1->numcsns; i++) {
 698                         if ( sc1->sids[i] != sc2->sids[j] )
 699                                 continue;
 700                         value_match( &match, slap_schema.si_ad_entryCSN,
 701                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 702                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 703                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 704                         if ( match < 0 ) {
 705                                 *which = j;
 706                                 return match;
 707                         }
 708                         break;
 709                 }
 710                 if ( i == sc1->numcsns ) {
 711                         /* sc2 has a sid sc1 lacks */
 712                         *which = j;
 713                         return -1;
 714                 }
 715         }
 716         return match;
 717 }
 718
 719 #define SYNC_PAUSED     -3
 720
 721 static int
 722 do_syncrep2(
 723         Operation *op,
 724         syncinfo_t *si )
 725 {
 726         LDAPControl     **rctrls = NULL;
 727
 728         BerElementBuffer berbuf;
 729         BerElement      *ber = (BerElement *)&berbuf;
 730
 731         LDAPMessage     *msg = NULL;
 732
 733         char            *retoid = NULL;
 734         struct berval   *retdata = NULL;
 735
 736         Entry           *entry = NULL;
 737
 738         int             syncstate;
 739         struct berval   syncUUID = BER_BVNULL;
 740         struct sync_cookie      syncCookie = { NULL };
 741         struct sync_cookie      syncCookie_req = { NULL };
 742         struct berval           cookie = BER_BVNULL;
 743
 744         int             rc,
 745                         err = LDAP_SUCCESS;
 746         ber_len_t       len;
 747
 748         struct berval   *psub;
 749         Modifications   *modlist = NULL;
 750
 751         int                             match, m;
 752
 753         struct timeval *tout_p = NULL;
 754         struct timeval tout = { 0, 0 };
 755
 756         int             refreshDeletes = 0;
 757         BerVarray syncUUIDs = NULL;
 758         ber_tag_t si_tag;
 759
 760         if ( slapd_shutdown ) {
 761                 rc = -2;
 762                 goto done;
 763         }
 764
 765         ber_init2( ber, NULL, LBER_USE_DER );
 766         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 767
 768         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 769
 770         psub = &si->si_be->be_nsuffix[0];
 771
 772         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 773
 774         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 775                 tout_p = &tout;
 776         } else {
 777                 tout_p = NULL;
 778         }
 779
 780         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 781                 tout_p, &msg ) ) > 0 )
 782         {
 783                 LDAPControl     *rctrlp = NULL;
 784
 785                 if ( slapd_shutdown ) {
 786                         rc = -2;
 787                         goto done;
 788                 }
 789                 switch( ldap_msgtype( msg ) ) {
 790                 case LDAP_RES_SEARCH_ENTRY:
 791                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 792                         /* we can't work without the control */
 793                         if ( rctrls ) {
 794                                 LDAPControl **next;
 795                                 /* NOTE: make sure we use the right one;
 796                                  * a better approach would be to run thru
 797                                  * the whole list and take care of all */
 798                                 /* NOTE: since we issue the search request,
 799                                  * we should know what controls to expect,
 800                                  * and there should be none apart from the
 801                                  * sync-related control */
 802                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 803                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 804                                 {
 805                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 806                                                 "got search entry with multiple "
 807                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 808                                         ldap_controls_free( rctrls );
 809                                         rc = -1;
 810                                         goto done;
 811                                 }
 812                         }
 813                         if ( rctrlp == NULL ) {
 814                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 815                                         "got search entry without "
 816                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 817                                 rc = -1;
 818                                 goto done;
 819                         }
 820                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 821                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 822                         /* FIXME: what if syncUUID is NULL or empty?
 823                          * (happens with back-sql...) */
 824                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 825                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 826                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 827                                         si->si_ridtxt,
 828                                         syncrepl_state2str( syncstate ), 0 );
 829                                 ldap_controls_free( rctrls );
 830                                 rc = -1;
 831                                 goto done;
 832                         }
 833                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 834                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 835
 836                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 837                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 838
 839                                 if ( !BER_BVISNULL( &cookie ) ) {
 840                                         ch_free( syncCookie.octet_str.bv_val );
 841                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 842                                 }
 843                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 844                                 {
 845                                         slap_parse_sync_cookie( &syncCookie, NULL );
 846                                         if ( syncCookie.ctxcsn ) {
 847                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 848                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 849                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 850                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 851                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 852                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 853                                                                 ldap_controls_free( rctrls );
 854                                                                 rc = 0;
 855                                                                 goto done;
 856                                                         }
 857                                                 }
 858                                         }
 859                                 }
 860                         }
 861                         rc = 0;
 862                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 863                                 modlist = NULL;
 864                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 865                                         syncCookie.ctxcsn )
 866                                 {
 867                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 868                                 } else switch ( rc ) {
 869                                         case LDAP_ALREADY_EXISTS:
 870                                         case LDAP_NO_SUCH_OBJECT:
 871                                         case LDAP_NO_SUCH_ATTRIBUTE:
 872                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 873                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 874                                                 si->si_logstate = SYNCLOG_FALLBACK;
 875                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 876                                                 break;
 877                                         default:
 878                                                 break;
 879                                 }
 880                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 881                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 882                         {
 883                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 884                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 885                                         syncCookie.ctxcsn )
 886                                 {
 887                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 888                                 }
 889                         }
 890                         ldap_controls_free( rctrls );
 891                         if ( modlist ) {
 892                                 slap_mods_free( modlist, 1 );
 893                         }
 894                         if ( rc )
 895                                 goto done;
 896                         break;
 897
 898                 case LDAP_RES_SEARCH_REFERENCE:
 899                         Debug( LDAP_DEBUG_ANY,
 900                                 "do_syncrep2: %s reference received error\n",
 901                                 si->si_ridtxt, 0, 0 );
 902                         break;
 903
 904                 case LDAP_RES_SEARCH_RESULT:
 905                         Debug( LDAP_DEBUG_SYNC,
 906                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 907                                 si->si_ridtxt, 0, 0 );
 908                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 909                                 &rctrls, 0 );
 910 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 911                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 912                                 /* map old result code to registered code */
 913                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 914                         }
 915 #endif
 916                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 917                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 918                                         si->si_logstate = SYNCLOG_FALLBACK;
 919                                 }
 920                                 rc = err;
 921                                 goto done;
 922                         }
 923                         if ( err ) {
 924                                 Debug( LDAP_DEBUG_ANY,
 925                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 926                                         si->si_ridtxt, err, ldap_err2string( err ) );
 927                         }
 928                         if ( rctrls ) {
 929                                 LDAPControl **next;
 930                                 /* NOTE: make sure we use the right one;
 931                                  * a better approach would be to run thru
 932                                  * the whole list and take care of all */
 933                                 /* NOTE: since we issue the search request,
 934                                  * we should know what controls to expect,
 935                                  * and there should be none apart from the
 936                                  * sync-related control */
 937                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 938                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 939                                 {
 940                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 941                                                 "got search result with multiple "
 942                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 943                                         ldap_controls_free( rctrls );
 944                                         rc = -1;
 945                                         goto done;
 946                                 }
 947                         }
 948                         if ( rctrlp ) {
 949                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 950
 951                                 ber_scanf( ber, "{" /*"}"*/);
 952                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 953                                         ber_scanf( ber, "m", &cookie );
 954
 955                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 956                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 957
 958                                         if ( !BER_BVISNULL( &cookie ) ) {
 959                                                 ch_free( syncCookie.octet_str.bv_val );
 960                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 961                                         }
 962                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 963                                         {
 964                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 965                                         }
 966                                 }
 967                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 968                                 {
 969                                         ber_scanf( ber, "b", &refreshDeletes );
 970                                 }
 971                                 ber_scanf( ber, /*"{"*/ "}" );
 972                         }
 973                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 974                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 975                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 976                         }
 977                         if ( !syncCookie.ctxcsn ) {
 978                                 match = 1;
 979                         } else if ( !syncCookie_req.ctxcsn ) {
 980                                 match = -1;
 981                                 m = 0;
 982                         } else {
 983                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 984                         }
 985                         if ( rctrls ) {
 986                                 ldap_controls_free( rctrls );
 987                         }
 988                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 989                                 /* FIXME : different error behaviors according to
 990                                  *      1) err code : LDAP_BUSY ...
 991                                  *      2) on err policy : stop service, stop sync, retry
 992                                  */
 993                                 if ( refreshDeletes == 0 && match < 0 &&
 994                                         err == LDAP_SUCCESS &&
 995                                         syncCookie_req.numcsns == syncCookie.numcsns )
 996                                 {
 997                                         syncrepl_del_nonpresent( op, si, NULL,
 998                                                 &syncCookie, m );
 999                                 } else {
1000                                         avl_free( si->si_presentlist, ch_free );
1001                                         si->si_presentlist = NULL;
1002                                 }
1003                         }
1004                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1005                         {
1006                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1007                         }
1008                         if ( err == LDAP_SUCCESS
1009                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1010                                 si->si_logstate = SYNCLOG_LOGGING;
1011                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1012                         } else {
1013                                 rc = -2;
1014                         }
1015                         goto done;
1016                         break;
1017
1018                 case LDAP_RES_INTERMEDIATE:
1019                         rc = ldap_parse_intermediate( si->si_ld, msg,
1020                                 &retoid, &retdata, NULL, 0 );
1021                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1022                                 ber_init2( ber, retdata, LBER_USE_DER );
1023
1024                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1025                                 ber_tag_t tag;
1026                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1027                                         Debug( LDAP_DEBUG_SYNC,
1028                                                 "do_syncrep2: %s %s - %s\n",
1029                                                 si->si_ridtxt,
1030                                                 "LDAP_RES_INTERMEDIATE",
1031                                                 "NEW_COOKIE" );
1032                                         ber_scanf( ber, "tm", &tag, &cookie );
1033                                         break;
1034                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1035                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1036                                         Debug( LDAP_DEBUG_SYNC,
1037                                                 "do_syncrep2: %s %s - %s\n",
1038                                                 si->si_ridtxt,
1039                                                 "LDAP_RES_INTERMEDIATE",
1040                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1041                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1042                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1043                                                 si->si_refreshDelete = 1;
1044                                         } else {
1045                                                 si->si_refreshPresent = 1;
1046                                         }
1047                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1048                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1049                                         {
1050                                                 ber_scanf( ber, "m", &cookie );
1051
1052                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1053                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1054
1055                                                 if ( !BER_BVISNULL( &cookie ) ) {
1056                                                         ch_free( syncCookie.octet_str.bv_val );
1057                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1058                                                 }
1059                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1060                                                 {
1061                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1062                                                 }
1063                                         }
1064                                         /* Defaults to TRUE */
1065                                         if ( ber_peek_tag( ber, &len ) ==
1066                                                 LDAP_TAG_REFRESHDONE )
1067                                         {
1068                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1069                                         } else
1070                                         {
1071                                                 si->si_refreshDone = 1;
1072                                         }
1073                                         ber_scanf( ber, /*"{"*/ "}" );
1074                                         break;
1075                                 case LDAP_TAG_SYNC_ID_SET:
1076                                         Debug( LDAP_DEBUG_SYNC,
1077                                                 "do_syncrep2: %s %s - %s\n",
1078                                                 si->si_ridtxt,
1079                                                 "LDAP_RES_INTERMEDIATE",
1080                                                 "SYNC_ID_SET" );
1081                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1082                                         if ( ber_peek_tag( ber, &len ) ==
1083                                                 LDAP_TAG_SYNC_COOKIE )
1084                                         {
1085                                                 ber_scanf( ber, "m", &cookie );
1086
1087                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1088                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1089
1090                                                 if ( !BER_BVISNULL( &cookie ) ) {
1091                                                         ch_free( syncCookie.octet_str.bv_val );
1092                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1093                                                 }
1094                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1095                                                 {
1096                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1097                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1098                                                 }
1099                                         }
1100                                         if ( ber_peek_tag( ber, &len ) ==
1101                                                 LDAP_TAG_REFRESHDELETES )
1102                                         {
1103                                                 ber_scanf( ber, "b", &refreshDeletes );
1104                                         }
1105                                         ber_scanf( ber, "[W]", &syncUUIDs );
1106                                         ber_scanf( ber, /*"{"*/ "}" );
1107                                         if ( refreshDeletes ) {
1108                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1109                                                         &syncCookie, m );
1110                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1111                                         } else {
1112                                                 int i;
1113                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1114                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1115                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1116                                                 }
1117                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1118                                         }
1119                                         slap_sync_cookie_free( &syncCookie, 0 );
1120                                         break;
1121                                 default:
1122                                         Debug( LDAP_DEBUG_ANY,
1123                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1124                                                 si->si_ridtxt, (long) si_tag, 0 );
1125                                         ldap_memfree( retoid );
1126                                         ber_bvfree( retdata );
1127                                         continue;
1128                                 }
1129
1130                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1131                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1132                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1133                                 }
1134                                 if ( !syncCookie.ctxcsn ) {
1135                                         match = 1;
1136                                 } else if ( !syncCookie_req.ctxcsn ) {
1137                                         match = -1;
1138                                         m = 0;
1139                                 } else {
1140                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1141                                 }
1142
1143                                 if ( match < 0 ) {
1144                                         if ( si->si_refreshPresent == 1 &&
1145                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1146                                                 syncrepl_del_nonpresent( op, si, NULL,
1147                                                         &syncCookie, m );
1148                                         }
1149
1150                                         if ( syncCookie.ctxcsn )
1151                                         {
1152                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1153                                         }
1154                                 }
1155
1156                                 ldap_memfree( retoid );
1157                                 ber_bvfree( retdata );
1158                                 break;
1159
1160                         } else {
1161                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1162                                         "unknown intermediate response (%d)\n",
1163                                         si->si_ridtxt, rc, 0 );
1164                                 ldap_memfree( retoid );
1165                                 ber_bvfree( retdata );
1166                                 break;
1167                         }
1168                         break;
1169
1170                 default:
1171                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1172                                 "unknown message (0x%02lx)\n",
1173                                 si->si_ridtxt,
1174                                 (unsigned long)ldap_msgtype( msg ), 0 );
1175                         break;
1176
1177                 }
1178                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1179                         slap_sync_cookie_free( &syncCookie_req, 0 );
1180                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1181                         slap_sync_cookie_free( &syncCookie, 0 );
1182                 }
1183                 ldap_msgfree( msg );
1184                 msg = NULL;
1185                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1186                         slap_sync_cookie_free( &syncCookie, 0 );
1187                         slap_sync_cookie_free( &syncCookie_req, 0 );
1188                         return SYNC_PAUSED;
1189                 }
1190         }
1191
1192         if ( rc == -1 ) {
1193                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1194                 err = rc;
1195         }
1196
1197 done:
1198         if ( err != LDAP_SUCCESS ) {
1199                 Debug( LDAP_DEBUG_ANY,
1200                         "do_syncrep2: %s (%d) %s\n",
1201                         si->si_ridtxt, err, ldap_err2string( err ) );
1202         }
1203
1204         slap_sync_cookie_free( &syncCookie, 0 );
1205         slap_sync_cookie_free( &syncCookie_req, 0 );
1206
1207         if ( msg ) ldap_msgfree( msg );
1208
1209         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1210                 if ( si->si_conn ) {
1211                         connection_client_stop( si->si_conn );
1212                         si->si_conn = NULL;
1213                 }
1214                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1215                 si->si_ld = NULL;
1216         }
1217
1218         return rc;
1219 }
1220
1221 static void *
1222 do_syncrepl(
1223         void    *ctx,
1224         void    *arg )
1225 {
1226         struct re_s* rtask = arg;
1227         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1228         Connection conn = {0};
1229         OperationBuffer opbuf;
1230         Operation *op;
1231         int rc = LDAP_SUCCESS;
1232         int dostop = 0;
1233         ber_socket_t s;
1234         int i, defer = 1, fail = 0;
1235         Backend *be;
1236
1237         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1238
1239         if ( si == NULL )
1240                 return NULL;
1241
1242         /* There will never be more than one instance active */
1243         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1244
1245         switch( abs( si->si_type ) ) {
1246         case LDAP_SYNC_REFRESH_ONLY:
1247         case LDAP_SYNC_REFRESH_AND_PERSIST:
1248                 break;
1249         default:
1250                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1251                 return NULL;
1252         }
1253
1254         if ( slapd_shutdown ) {
1255                 if ( si->si_ld ) {
1256                         if ( si->si_conn ) {
1257                                 connection_client_stop( si->si_conn );
1258                                 si->si_conn = NULL;
1259                         }
1260                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1261                         si->si_ld = NULL;
1262                 }
1263                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1264                 return NULL;
1265         }
1266
1267         connection_fake_init( &conn, &opbuf, ctx );
1268         op = &opbuf.ob_op;
1269
1270         /* use global malloc for now */
1271         op->o_tmpmemctx = NULL;
1272         op->o_tmpmfuncs = &ch_mfuncs;
1273
1274         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1275         be = si->si_be;
1276
1277         /* Coordinate contextCSN updates with any syncprov overlays
1278          * in use. This may be complicated by the use of the glue
1279          * overlay.
1280          *
1281          * Typically there is a single syncprov mastering the entire
1282          * glued tree. In that case, our contextCSN updates should
1283          * go to the master DB. But if there is no syncprov on the
1284          * master DB, then nothing special is needed here.
1285          *
1286          * Alternatively, there may be individual syncprov overlays
1287          * on each glued branch. In that case, each syncprov only
1288          * knows about changes within its own branch. And so our
1289          * contextCSN updates should only go to the local DB.
1290          */
1291         if ( !si->si_wbe ) {
1292                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1293                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1294                         if ( overlay_is_inst( top_be, "syncprov" ))
1295                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1296                         else
1297                                 si->si_wbe = be;
1298                 } else {
1299                         si->si_wbe = be;
1300                 }
1301         }
1302         if ( !si->si_schemachecking )
1303                 op->o_no_schema_check = 1;
1304
1305         /* Establish session, do search */
1306         if ( !si->si_ld ) {
1307                 si->si_refreshDelete = 0;
1308                 si->si_refreshPresent = 0;
1309
1310                 /* use main DB when retrieving contextCSN */
1311                 op->o_bd = si->si_wbe;
1312                 op->o_dn = op->o_bd->be_rootdn;
1313                 op->o_ndn = op->o_bd->be_rootndn;
1314                 rc = do_syncrep1( op, si );
1315         }
1316
1317 reload:
1318         /* Process results */
1319         if ( rc == LDAP_SUCCESS ) {
1320                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1321
1322                 /* use current DB */
1323                 op->o_bd = be;
1324                 op->o_dn = op->o_bd->be_rootdn;
1325                 op->o_ndn = op->o_bd->be_rootndn;
1326                 rc = do_syncrep2( op, si );
1327                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1328                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1329                         goto reload;
1330                 }
1331
1332                 /* We got deleted while running on cn=config */
1333                 if ( !si->si_ctype ) {
1334                         if ( si->si_conn )
1335                                 dostop = 1;
1336                         rc = -1;
1337                 }
1338
1339                 if ( rc != SYNC_PAUSED ) {
1340                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1341                                 /* If we succeeded, enable the connection for further listening.
1342                                  * If we failed, tear down the connection and reschedule.
1343                                  */
1344                                 if ( rc == LDAP_SUCCESS ) {
1345                                         if ( si->si_conn ) {
1346                                                 connection_client_enable( si->si_conn );
1347                                         } else {
1348                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1349                                         }
1350                                 } else if ( si->si_conn ) {
1351                                         dostop = 1;
1352                                 }
1353                         } else {
1354                                 if ( rc == -2 ) rc = 0;
1355                         }
1356                 }
1357         }
1358
1359         /* At this point, we have 5 cases:
1360          * 1) for any hard failure, give up and remove this task
1361          * 2) for ServerDown, reschedule this task to run later
1362          * 3) for threadpool pause, reschedule to run immediately
1363          * 4) for Refresh and Success, reschedule to run
1364          * 5) for Persist and Success, reschedule to defer
1365          */
1366         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1367
1368         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1369                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1370         }
1371
1372         if ( dostop ) {
1373                 connection_client_stop( si->si_conn );
1374                 si->si_conn = NULL;
1375         }
1376
1377         if ( rc == SYNC_PAUSED ) {
1378                 rtask->interval.tv_sec = 0;
1379                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1380                 rtask->interval.tv_sec = si->si_interval;
1381                 rc = 0;
1382         } else if ( rc == LDAP_SUCCESS ) {
1383                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1384                         defer = 0;
1385                 }
1386                 rtask->interval.tv_sec = si->si_interval;
1387                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1388                 if ( si->si_retrynum ) {
1389                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1390                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1391                         }
1392                         si->si_retrynum[i] = RETRYNUM_TAIL;
1393                 }
1394         } else {
1395                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1396                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1397                                 break;
1398                 }
1399
1400                 if ( !si->si_ctype
1401                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1402                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1403                         fail = RETRYNUM_TAIL;
1404                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1405                         if ( si->si_retrynum[i] > 0 )
1406                                 si->si_retrynum[i]--;
1407                         fail = si->si_retrynum[i];
1408                         rtask->interval.tv_sec = si->si_retryinterval[i];
1409                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1410                         slap_wake_listener();
1411                 }
1412         }
1413
1414         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1415         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1416
1417         if ( rc ) {
1418                 if ( fail == RETRYNUM_TAIL ) {
1419                         Debug( LDAP_DEBUG_ANY,
1420                                 "do_syncrepl: %s quitting\n",
1421                                 si->si_ridtxt, 0, 0 );
1422                 } else if ( fail > 0 ) {
1423                         Debug( LDAP_DEBUG_ANY,
1424                                 "do_syncrepl: %s retrying (%d retries left)\n",
1425                                 si->si_ridtxt, fail, 0 );
1426                 } else {
1427                         Debug( LDAP_DEBUG_ANY,
1428                                 "do_syncrepl: %s retrying\n",
1429                                 si->si_ridtxt, 0, 0 );
1430                 }
1431         }
1432
1433         /* Do final delete cleanup */
1434         if ( !si->si_ctype ) {
1435                 cookie_state *cs = NULL;
1436                 syncinfo_t **sip;
1437
1438                 cs = be->be_syncinfo->si_cookieState;
1439                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1440                 *sip = si->si_next;
1441                 syncinfo_free( si, 0 );
1442                 if ( !be->be_syncinfo ) {
1443                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1444                         if ( cs ) {
1445                                 ch_free( cs->cs_sids );
1446                                 ber_bvarray_free( cs->cs_vals );
1447                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1448                                 ch_free( cs );
1449                         }
1450                 }
1451         }
1452         return NULL;
1453 }
1454
1455 static slap_verbmasks modops[] = {
1456         { BER_BVC("add"), LDAP_REQ_ADD },
1457         { BER_BVC("delete"), LDAP_REQ_DELETE },
1458         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1459         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1460         { BER_BVNULL, 0 }
1461 };
1462
1463 static Modifications *
1464 syncrepl_accesslog_mods(
1465         syncinfo_t *si,
1466         struct berval *vals
1467 )
1468 {
1469         char *colon;
1470         const char *text;
1471         AttributeDescription *ad;
1472         struct berval bv, bv2;
1473         short op;
1474         Modifications *mod = NULL, *modlist = NULL, **modtail;
1475         int i;
1476
1477         modtail = &modlist;
1478
1479         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1480                 ad = NULL;
1481                 bv = vals[i];
1482
1483                 colon = ber_bvchr( &bv, ':' );
1484                 if ( !colon ) {
1485                         /* Invalid */
1486                         continue;
1487                 }
1488
1489                 bv.bv_len = colon - bv.bv_val;
1490                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1491                         /* Invalid */
1492                         continue;
1493                 }
1494
1495                 /* Ignore dynamically generated attrs */
1496                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1497                         continue;
1498                 }
1499
1500                 /* Ignore excluded attrs */
1501                 if ( ldap_charray_inlist( si->si_exattrs,
1502                         ad->ad_type->sat_cname.bv_val ) )
1503                 {
1504                         continue;
1505                 }
1506
1507                 switch(colon[1]) {
1508                 case '+':       op = LDAP_MOD_ADD; break;
1509                 case '-':       op = LDAP_MOD_DELETE; break;
1510                 case '=':       op = LDAP_MOD_REPLACE; break;
1511                 case '#':       op = LDAP_MOD_INCREMENT; break;
1512                 default:        continue;
1513                 }
1514
1515                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1516                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1517                         mod->sml_flags = 0;
1518                         mod->sml_op = op;
1519                         mod->sml_next = NULL;
1520                         mod->sml_desc = ad;
1521                         mod->sml_type = ad->ad_cname;
1522                         mod->sml_values = NULL;
1523                         mod->sml_nvalues = NULL;
1524                         mod->sml_numvals = 0;
1525
1526                         *modtail = mod;
1527                         modtail = &mod->sml_next;
1528                 }
1529                 if ( colon[2] == ' ' ) {
1530                         bv.bv_val = colon + 3;
1531                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1532                         ber_dupbv( &bv2, &bv );
1533                         ber_bvarray_add( &mod->sml_values, &bv2 );
1534                         mod->sml_numvals++;
1535                 }
1536         }
1537         return modlist;
1538 }
1539
1540 static Modifications *
1541 syncrepl_changelog_mods(
1542         syncinfo_t *si,
1543         struct berval *vals
1544 )
1545 {
1546         return NULL;    /* FIXME */
1547 }
1548
1549 static int
1550 syncrepl_message_to_op(
1551         syncinfo_t      *si,
1552         Operation       *op,
1553         LDAPMessage     *msg
1554 )
1555 {
1556         BerElement      *ber = NULL;
1557         Modifications   *modlist = NULL;
1558         logschema *ls;
1559         SlapReply rs = { REP_RESULT };
1560         slap_callback cb = { NULL, null_callback, NULL, NULL };
1561
1562         const char      *text;
1563         char txtbuf[SLAP_TEXT_BUFLEN];
1564         size_t textlen = sizeof txtbuf;
1565
1566         struct berval   bdn, dn = BER_BVNULL, ndn;
1567         struct berval   bv, *bvals = NULL;
1568         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1569                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1570                 psup = BER_BVNULL, nsup = BER_BVNULL;
1571         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1572
1573         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1574                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1575                         "Message type should be entry (%d)",
1576                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1577                 return -1;
1578         }
1579
1580         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1581                 ls = &accesslog_sc;
1582         else
1583                 ls = &changelog_sc;
1584
1585         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1586
1587         if ( rc != LDAP_SUCCESS ) {
1588                 Debug( LDAP_DEBUG_ANY,
1589                         "syncrepl_message_to_op: %s dn get failed (%d)",
1590                         si->si_ridtxt, rc, 0 );
1591                 return rc;
1592         }
1593
1594         op->o_tag = LBER_DEFAULT;
1595         op->o_bd = si->si_wbe;
1596
1597         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1598                 == LDAP_SUCCESS ) {
1599                 if ( bv.bv_val == NULL )
1600                         break;
1601
1602                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1603                         bdn = bvals[0];
1604                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1605                         ber_dupbv( &op->o_req_dn, &dn );
1606                         ber_dupbv( &op->o_req_ndn, &ndn );
1607                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1608                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1609                         freeReqDn = 1;
1610                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1611                         int i = verb_to_mask( bvals[0].bv_val, modops );
1612                         if ( i < 0 ) {
1613                                 Debug( LDAP_DEBUG_ANY,
1614                                         "syncrepl_message_to_op: %s unknown op %s",
1615                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1616                                 ch_free( bvals );
1617                                 rc = -1;
1618                                 goto done;
1619                         }
1620                         op->o_tag = modops[i].mask;
1621                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1622                         /* Parse attribute into modlist */
1623                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1624                                 modlist = syncrepl_accesslog_mods( si, bvals );
1625                         } else {
1626                                 modlist = syncrepl_changelog_mods( si, bvals );
1627                         }
1628                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1629                         rdn = bvals[0];
1630                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1631                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1632                                 deleteOldRdn = 1;
1633                         }
1634                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1635                         sup = bvals[0];
1636                 } else if ( !ber_bvstrcasecmp( &bv,
1637                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1638                 {
1639                         slap_queue_csn( op, bvals );
1640                 }
1641                 ch_free( bvals );
1642         }
1643
1644         /* If we didn't get a mod type or a target DN, bail out */
1645         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1646                 rc = -1;
1647                 goto done;
1648         }
1649
1650         op->o_callback = &cb;
1651         slap_op_time( &op->o_time, &op->o_tincr );
1652
1653         switch( op->o_tag ) {
1654         case LDAP_REQ_ADD:
1655         case LDAP_REQ_MODIFY:
1656                 /* If we didn't get required data, bail */
1657                 if ( !modlist ) goto done;
1658
1659                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1660
1661                 if ( rc != LDAP_SUCCESS ) {
1662                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1663                                 "mods check (%s)\n",
1664                                 si->si_ridtxt, text, 0 );
1665                         goto done;
1666                 }
1667
1668                 if ( op->o_tag == LDAP_REQ_ADD ) {
1669                         Entry *e = entry_alloc();
1670                         op->ora_e = e;
1671                         op->ora_e->e_name = op->o_req_dn;
1672                         op->ora_e->e_nname = op->o_req_ndn;
1673                         freeReqDn = 0;
1674                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1675                         if( rc != LDAP_SUCCESS ) {
1676                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1677                                 "mods2entry (%s)\n",
1678                                         si->si_ridtxt, text, 0 );
1679                         } else {
1680                                 rc = op->o_bd->be_add( op, &rs );
1681                                 Debug( LDAP_DEBUG_SYNC,
1682                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1683                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1684                         }
1685                         if ( e == op->ora_e )
1686                                 be_entry_release_w( op, op->ora_e );
1687                 } else {
1688                         op->orm_modlist = modlist;
1689                         op->o_bd = si->si_wbe;
1690                         rc = op->o_bd->be_modify( op, &rs );
1691                         modlist = op->orm_modlist;
1692                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1693                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1694                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1695                         op->o_bd = si->si_be;
1696                 }
1697                 break;
1698         case LDAP_REQ_MODRDN:
1699                 if ( BER_BVISNULL( &rdn ) ) goto done;
1700
1701                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1702                         goto done;
1703                 }
1704                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1705                         goto done;
1706                 }
1707                 if ( !BER_BVISNULL( &sup ) ) {
1708                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1709                                 goto done;
1710                         }
1711                         op->orr_newSup = &psup;
1712                         op->orr_nnewSup = &nsup;
1713                 } else {
1714                         op->orr_newSup = NULL;
1715                         op->orr_nnewSup = NULL;
1716                 }
1717                 op->orr_newrdn = prdn;
1718                 op->orr_nnewrdn = nrdn;
1719                 op->orr_deleteoldrdn = deleteOldRdn;
1720                 op->orr_modlist = NULL;
1721                 if ( slap_modrdn2mods( op, &rs ) ) {
1722                         goto done;
1723                 }
1724
1725                 /* Append modlist for operational attrs */
1726                 {
1727                         Modifications *m;
1728
1729                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1730                                 ;
1731                         m->sml_next = modlist;
1732                         modlist = NULL;
1733                 }
1734                 rc = op->o_bd->be_modrdn( op, &rs );
1735                 slap_mods_free( op->orr_modlist, 1 );
1736                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1737                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1738                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1739                 break;
1740         case LDAP_REQ_DELETE:
1741                 rc = op->o_bd->be_delete( op, &rs );
1742                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1743                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1744                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1745                 break;
1746         }
1747 done:
1748         slap_graduate_commit_csn( op );
1749         op->o_bd = si->si_be;
1750         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1751         BER_BVZERO( &op->o_csn );
1752         if ( modlist ) {
1753                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1754         }
1755         if ( !BER_BVISNULL( &rdn ) ) {
1756                 if ( !BER_BVISNULL( &nsup ) ) {
1757                         ch_free( nsup.bv_val );
1758                 }
1759                 if ( !BER_BVISNULL( &psup ) ) {
1760                         ch_free( psup.bv_val );
1761                 }
1762                 if ( !BER_BVISNULL( &nrdn ) ) {
1763                         ch_free( nrdn.bv_val );
1764                 }
1765                 if ( !BER_BVISNULL( &prdn ) ) {
1766                         ch_free( prdn.bv_val );
1767                 }
1768         }
1769         if ( freeReqDn ) {
1770                 ch_free( op->o_req_ndn.bv_val );
1771                 ch_free( op->o_req_dn.bv_val );
1772         }
1773         ber_free( ber, 0 );
1774         return rc;
1775 }
1776
1777 static int
1778 syncrepl_message_to_entry(
1779         syncinfo_t      *si,
1780         Operation       *op,
1781         LDAPMessage     *msg,
1782         Modifications   **modlist,
1783         Entry                   **entry,
1784         int             syncstate
1785 )
1786 {
1787         Entry           *e = NULL;
1788         BerElement      *ber = NULL;
1789         Modifications   tmp;
1790         Modifications   *mod;
1791         Modifications   **modtail = modlist;
1792
1793         const char      *text;
1794         char txtbuf[SLAP_TEXT_BUFLEN];
1795         size_t textlen = sizeof txtbuf;
1796
1797         struct berval   bdn = BER_BVNULL, dn, ndn;
1798         int             rc, is_ctx;
1799
1800         *modlist = NULL;
1801
1802         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1803                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1804                         "Message type should be entry (%d)",
1805                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1806                 return -1;
1807         }
1808
1809         op->o_tag = LDAP_REQ_ADD;
1810
1811         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1812         if ( rc != LDAP_SUCCESS ) {
1813                 Debug( LDAP_DEBUG_ANY,
1814                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1815                         si->si_ridtxt, rc, 0 );
1816                 return rc;
1817         }
1818
1819         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1820                 /* NOTE: this could be done even before decoding the DN,
1821                  * although encoding errors wouldn't be detected */
1822                 rc = LDAP_SUCCESS;
1823                 goto done;
1824         }
1825
1826         if ( entry == NULL ) {
1827                 return -1;
1828         }
1829
1830         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1831         ber_dupbv( &op->o_req_dn, &dn );
1832         ber_dupbv( &op->o_req_ndn, &ndn );
1833         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1834         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1835
1836         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1837
1838         e = entry_alloc();
1839         e->e_name = op->o_req_dn;
1840         e->e_nname = op->o_req_ndn;
1841
1842         while ( ber_remaining( ber ) ) {
1843                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1844                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1845                 {
1846                         break;
1847                 }
1848
1849                 /* Drop all updates to the contextCSN of the context entry
1850                  * (ITS#4622, etc.)
1851                  */
1852                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1853                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1854                         ber_bvarray_free( tmp.sml_values );
1855                         continue;
1856                 }
1857
1858                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1859
1860                 mod->sml_op = LDAP_MOD_REPLACE;
1861                 mod->sml_flags = 0;
1862                 mod->sml_next = NULL;
1863                 mod->sml_desc = NULL;
1864                 mod->sml_type = tmp.sml_type;
1865                 mod->sml_values = tmp.sml_values;
1866                 mod->sml_nvalues = NULL;
1867                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1868
1869                 *modtail = mod;
1870                 modtail = &mod->sml_next;
1871         }
1872
1873         if ( *modlist == NULL ) {
1874                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1875                         si->si_ridtxt, 0, 0 );
1876                 rc = -1;
1877                 goto done;
1878         }
1879
1880         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1881
1882         if ( rc != LDAP_SUCCESS ) {
1883                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1884                         si->si_ridtxt, text, 0 );
1885                 goto done;
1886         }
1887
1888         /* Strip out dynamically generated attrs */
1889         for ( modtail = modlist; *modtail ; ) {
1890                 mod = *modtail;
1891                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1892                         *modtail = mod->sml_next;
1893                         slap_mod_free( &mod->sml_mod, 0 );
1894                         ch_free( mod );
1895                 } else {
1896                         modtail = &mod->sml_next;
1897                 }
1898         }
1899
1900         /* Strip out attrs in exattrs list */
1901         for ( modtail = modlist; *modtail ; ) {
1902                 mod = *modtail;
1903                 if ( ldap_charray_inlist( si->si_exattrs,
1904                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1905                 {
1906                         *modtail = mod->sml_next;
1907                         slap_mod_free( &mod->sml_mod, 0 );
1908                         ch_free( mod );
1909                 } else {
1910                         modtail = &mod->sml_next;
1911                 }
1912         }
1913
1914         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1915         if( rc != LDAP_SUCCESS ) {
1916                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1917                         si->si_ridtxt, text, 0 );
1918         }
1919
1920 done:
1921         ber_free( ber, 0 );
1922         if ( rc != LDAP_SUCCESS ) {
1923                 if ( e ) {
1924                         entry_free( e );
1925                         e = NULL;
1926                 }
1927         }
1928         if ( entry )
1929                 *entry = e;
1930
1931         return rc;
1932 }
1933
1934 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1935
1936 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1937  * entry if a previous refresh was interrupted before sending us a new
1938  * context state. We try to compare the new entry to the existing entry
1939  * and ignore the new entry if they are the same.
1940  *
1941  * Also, we may get an update where the entryDN has changed, due to
1942  * a ModDn on the provider. We detect this as well, so we can issue
1943  * the corresponding operation locally.
1944  *
1945  * In the case of a modify, we get a list of all the attributes
1946  * in the original entry. Rather than deleting the entry and re-adding it,
1947  * we issue a Modify request that deletes all the attributes and adds all
1948  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1949  * entry.
1950  *
1951  * We otherwise distinguish ModDN from Modify; in the case of
1952  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1953  * operational attributes from the entry, and do a regular ModDN.
1954  */
1955 typedef struct dninfo {
1956         Entry *new_entry;
1957         struct berval dn;
1958         struct berval ndn;
1959         struct berval nnewSup;
1960         int renamed;    /* Was an existing entry renamed? */
1961         int delOldRDN;  /* Was old RDN deleted? */
1962         Modifications **modlist;        /* the modlist we received */
1963         Modifications *mods;    /* the modlist we compared */
1964         Attribute *oldNattr;    /* old naming attr */
1965         AttributeDescription *oldDesc;  /* for renames */
1966         AttributeDescription *newDesc;  /* for renames */
1967 } dninfo;
1968
1969 /* return 1 if inserted, 0 otherwise */
1970 static int
1971 avl_presentlist_insert(
1972         syncinfo_t* si,
1973         struct berval *syncUUID )
1974 {
1975         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1976
1977         syncuuid_bv->bv_len = syncUUID->bv_len;
1978         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1979         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1980         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1981
1982         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1983                 syncuuid_cmp, avl_dup_error ) )
1984         {
1985                 ch_free( syncuuid_bv );
1986                 return 0;
1987         }
1988
1989         return 1;
1990 }
1991
1992 static int
1993 syncrepl_entry(
1994         syncinfo_t* si,
1995         Operation *op,
1996         Entry* entry,
1997         Modifications** modlist,
1998         int syncstate,
1999         struct berval* syncUUID,
2000         struct berval* syncCSN )
2001 {
2002         Backend *be = op->o_bd;
2003         slap_callback   cb = { NULL, NULL, NULL, NULL };
2004         int syncuuid_inserted = 0;
2005         struct berval   syncUUID_strrep = BER_BVNULL;
2006
2007         SlapReply       rs_search = {REP_RESULT};
2008         SlapReply       rs_delete = {REP_RESULT};
2009         SlapReply       rs_add = {REP_RESULT};
2010         SlapReply       rs_modify = {REP_RESULT};
2011         Filter f = {0};
2012         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2013         int rc = LDAP_SUCCESS;
2014
2015         struct berval pdn = BER_BVNULL;
2016         dninfo dni = {0};
2017         int     retry = 1;
2018         int     freecsn = 1;
2019
2020         Debug( LDAP_DEBUG_SYNC,
2021                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2022                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2023
2024         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2025                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2026                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2027                 }
2028         }
2029
2030         if ( syncstate == LDAP_SYNC_PRESENT ) {
2031                 return 0;
2032         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2033                 if ( entry == NULL ) {
2034                         return 0;
2035                 }
2036         }
2037
2038         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2039         if ( syncstate != LDAP_SYNC_DELETE ) {
2040                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2041
2042                 if ( a == NULL ) {
2043                         /* add if missing */
2044                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2045                                 &syncUUID_strrep, syncUUID );
2046
2047                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2048                         /* replace only if necessary */
2049                         if ( a->a_nvals != a->a_vals ) {
2050                                 ber_memfree( a->a_nvals[0].bv_val );
2051                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2052                         }
2053                         ber_memfree( a->a_vals[0].bv_val );
2054                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2055                 }
2056         }
2057
2058         f.f_choice = LDAP_FILTER_EQUALITY;
2059         f.f_ava = &ava;
2060         ava.aa_desc = slap_schema.si_ad_entryUUID;
2061         ava.aa_value = *syncUUID;
2062
2063         if ( syncuuid_inserted ) {
2064                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2065                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2066         }
2067         op->ors_filter = &f;
2068
2069         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2070         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2071                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2072         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2073         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2074                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2075         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2076         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2077
2078         op->o_tag = LDAP_REQ_SEARCH;
2079         op->ors_scope = LDAP_SCOPE_SUBTREE;
2080         op->ors_deref = LDAP_DEREF_NEVER;
2081
2082         /* get the entry for this UUID */
2083         op->o_req_dn = si->si_base;
2084         op->o_req_ndn = si->si_base;
2085
2086         op->o_time = slap_get_time();
2087         op->ors_tlimit = SLAP_NO_LIMIT;
2088         op->ors_slimit = 1;
2089
2090         op->ors_attrs = slap_anlist_all_attributes;
2091         op->ors_attrsonly = 0;
2092
2093         /* set callback function */
2094         op->o_callback = &cb;
2095         cb.sc_response = dn_callback;
2096         cb.sc_private = &dni;
2097         dni.new_entry = entry;
2098         dni.modlist = modlist;
2099
2100         if ( limits_check( op, &rs_search ) == 0 ) {
2101                 rc = be->be_search( op, &rs_search );
2102                 Debug( LDAP_DEBUG_SYNC,
2103                                 "syncrepl_entry: %s be_search (%d)\n",
2104                                 si->si_ridtxt, rc, 0 );
2105         }
2106
2107         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2108                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2109         }
2110
2111         cb.sc_response = null_callback;
2112         cb.sc_private = si;
2113
2114         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2115                 Debug( LDAP_DEBUG_SYNC,
2116                                 "syncrepl_entry: %s %s\n",
2117                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2118         } else {
2119                 Debug( LDAP_DEBUG_SYNC,
2120                                 "syncrepl_entry: %s %s\n",
2121                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2122         }
2123
2124         assert( BER_BVISNULL( &op->o_csn ) );
2125         if ( syncCSN ) {
2126                 slap_queue_csn( op, syncCSN );
2127         }
2128
2129         slap_op_time( &op->o_time, &op->o_tincr );
2130         switch ( syncstate ) {
2131         case LDAP_SYNC_ADD:
2132         case LDAP_SYNC_MODIFY:
2133                 if ( BER_BVISNULL( &op->o_csn ))
2134                 {
2135
2136                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2137                         if ( a ) {
2138                                 /* FIXME: op->o_csn is assumed to be
2139                                  * on the thread's slab; this needs
2140                                  * to be cleared ASAP.
2141                                  * What happens if already present?
2142                                  */
2143                                 assert( BER_BVISNULL( &op->o_csn ) );
2144                                 op->o_csn = a->a_vals[0];
2145                                 freecsn = 0;
2146                         }
2147                 }
2148 retry_add:;
2149                 if ( BER_BVISNULL( &dni.dn ) ) {
2150
2151                         op->o_req_dn = entry->e_name;
2152                         op->o_req_ndn = entry->e_nname;
2153                         op->o_tag = LDAP_REQ_ADD;
2154                         op->ora_e = entry;
2155                         op->o_bd = si->si_wbe;
2156
2157                         rc = op->o_bd->be_add( op, &rs_add );
2158                         Debug( LDAP_DEBUG_SYNC,
2159                                         "syncrepl_entry: %s be_add (%d)\n",
2160                                         si->si_ridtxt, rc, 0 );
2161                         switch ( rs_add.sr_err ) {
2162                         case LDAP_SUCCESS:
2163                                 if ( op->ora_e == entry ) {
2164                                         be_entry_release_w( op, entry );
2165                                 }
2166                                 entry = NULL;
2167                                 break;
2168
2169                         case LDAP_REFERRAL:
2170                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2171                          * only if the suffix entry is not present */
2172                         case LDAP_NO_SUCH_OBJECT:
2173                                 rc = syncrepl_add_glue( op, entry );
2174                                 entry = NULL;
2175                                 break;
2176
2177                         /* if an entry was added via syncrepl_add_glue(),
2178                          * it likely has no entryUUID, so the previous
2179                          * be_search() doesn't find it.  In this case,
2180                          * give syncrepl a chance to modify it. Also
2181                          * allow for entries that were recreated with the
2182                          * same DN but a different entryUUID.
2183                          */
2184                         case LDAP_ALREADY_EXISTS:
2185                                 if ( retry ) {
2186                                         Operation       op2 = *op;
2187                                         SlapReply       rs2 = { 0 };
2188                                         slap_callback   cb2 = { 0 };
2189
2190                                         op2.o_bd = be;
2191                                         op2.o_tag = LDAP_REQ_SEARCH;
2192                                         op2.o_req_dn = entry->e_name;
2193                                         op2.o_req_ndn = entry->e_nname;
2194                                         op2.ors_scope = LDAP_SCOPE_BASE;
2195                                         op2.ors_deref = LDAP_DEREF_NEVER;
2196                                         op2.ors_attrs = slap_anlist_all_attributes;
2197                                         op2.ors_attrsonly = 0;
2198                                         op2.ors_limit = NULL;
2199                                         op2.ors_slimit = 1;
2200                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2201
2202                                         f.f_choice = LDAP_FILTER_PRESENT;
2203                                         f.f_desc = slap_schema.si_ad_objectClass;
2204                                         op2.ors_filter = &f;
2205                                         op2.ors_filterstr = generic_filterstr;
2206
2207                                         op2.o_callback = &cb2;
2208                                         cb2.sc_response = dn_callback;
2209                                         cb2.sc_private = &dni;
2210
2211                                         rc = be->be_search( &op2, &rs2 );
2212                                         if ( rc ) goto done;
2213
2214                                         retry = 0;
2215                                         slap_op_time( &op->o_time, &op->o_tincr );
2216                                         goto retry_add;
2217                                 }
2218                                 /* FALLTHRU */
2219
2220                         default:
2221                                 Debug( LDAP_DEBUG_ANY,
2222                                         "syncrepl_entry: %s be_add failed (%d)\n",
2223                                         si->si_ridtxt, rs_add.sr_err, 0 );
2224                                 break;
2225                         }
2226                         op->o_bd = be;
2227                         goto done;
2228                 }
2229                 /* FALLTHRU */
2230                 op->o_req_dn = dni.dn;
2231                 op->o_req_ndn = dni.ndn;
2232                 if ( dni.renamed ) {
2233                         struct berval noldp, newp;
2234                         Modifications *mod, **modtail, **ml, *m2;
2235                         int i, got_replace = 0, just_rename = 0;
2236
2237                         op->o_tag = LDAP_REQ_MODRDN;
2238                         dnRdn( &entry->e_name, &op->orr_newrdn );
2239                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2240
2241                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2242                                 dnParent( &entry->e_name, &newp );
2243                                 op->orr_newSup = &newp;
2244                                 op->orr_nnewSup = &dni.nnewSup;
2245                         } else {
2246                                 op->orr_newSup = NULL;
2247                                 op->orr_nnewSup = NULL;
2248                         }
2249                         op->orr_deleteoldrdn = dni.delOldRDN;
2250                         op->orr_modlist = NULL;
2251                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2252                                 goto done;
2253                         }
2254
2255                         /* Drop the RDN-related mods from this op, because their
2256                          * equivalents were just setup by slap_modrdn2mods.
2257                          *
2258                          * If delOldRDN is TRUE then we should see a delete modop
2259                          * for oldDesc. We might see a replace instead.
2260                          *  delete with no values: therefore newDesc != oldDesc.
2261                          *   if oldNattr had only one value, then Drop this op.
2262                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2263                          *  delete with N values: Drop oldRDN value, keep remainder.
2264                          *  replace with 1 value: if oldNattr had only one value and
2265                          *     newDesc == oldDesc, Drop this op.
2266                          * Any other cases must be left intact.
2267                          *
2268                          * We should also see an add modop for newDesc. (But not if
2269                          * we got a replace modop due to delOldRDN.) If it has
2270                          * multiple values, we'll have to drop the new RDN value.
2271                          */
2272                         modtail = &op->orr_modlist;
2273                         if ( dni.delOldRDN ) {
2274                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2275                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2276                                                 mod = *ml;
2277                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2278                                                         dni.oldDesc != dni.newDesc ) {
2279                                                         /* This Replace is due to other Mods.
2280                                                          * Just let it ride.
2281                                                          */
2282                                                         continue;
2283                                                 }
2284                                                 if ( mod->sml_numvals <= 1 &&
2285                                                         dni.oldNattr->a_numvals == 1 &&
2286                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2287                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2288                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2289                                                                 got_replace = 1;
2290                                                         /* Drop this op */
2291                                                         *ml = mod->sml_next;
2292                                                         mod->sml_next = NULL;
2293                                                         slap_mods_free( mod, 1 );
2294                                                         break;
2295                                                 }
2296                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2297                                                         continue;
2298                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2299                                                         if ( m2->sml_desc == dni.oldDesc &&
2300                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2301                                                 }
2302                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2303                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2304                                                                 mod->sml_numvals--;
2305                                                                 ch_free( mod->sml_values[i].bv_val );
2306                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2307                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2308                                                                 if ( mod->sml_nvalues ) {
2309                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2310                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2311                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2312                                                                 }
2313                                                                 break;
2314                                                         }
2315                                                 }
2316                                                 break;
2317                                         }
2318                                 }
2319                         }
2320                         if ( !got_replace ) {
2321                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2322                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2323                                                 mod = *ml;
2324                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2325                                                         continue;
2326                                                 if ( mod->sml_numvals == 1 ) {
2327                                                         /* Drop this op */
2328                                                         *ml = mod->sml_next;
2329                                                         mod->sml_next = NULL;
2330                                                         slap_mods_free( mod, 1 );
2331                                                         break;
2332                                                 }
2333                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2334                                                         if ( m2->sml_desc == dni.oldDesc &&
2335                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2336                                                 }
2337                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2338                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2339                                                                 mod->sml_numvals--;
2340                                                                 ch_free( mod->sml_values[i].bv_val );
2341                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2342                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2343                                                                 if ( mod->sml_nvalues ) {
2344                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2345                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2346                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2347                                                                 }
2348                                                                 break;
2349                                                         }
2350                                                 }
2351                                                 break;
2352                                         }
2353                                 }
2354                         }
2355
2356                         /* RDNs must be NUL-terminated for back-ldap */
2357                         noldp = op->orr_newrdn;
2358                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2359                         noldp = op->orr_nnewrdn;
2360                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2361
2362                         /* Setup opattrs too */
2363                         {
2364                                 static AttributeDescription *nullattr = NULL;
2365                                 static AttributeDescription **const opattrs[] = {
2366                                         &slap_schema.si_ad_entryCSN,
2367                                         &slap_schema.si_ad_modifiersName,
2368                                         &slap_schema.si_ad_modifyTimestamp,
2369                                         &nullattr
2370                                 };
2371                                 AttributeDescription *opattr;
2372                                 int i;
2373
2374                                 modtail = &m2;
2375                                 /* pull mod off incoming modlist */
2376                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2377                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2378                                         {
2379                                                 if ( (*ml)->sml_desc == opattr ) {
2380                                                         mod = *ml;
2381                                                         *ml = mod->sml_next;
2382                                                         mod->sml_next = NULL;
2383                                                         *modtail = mod;
2384                                                         modtail = &mod->sml_next;
2385                                                         break;
2386                                                 }
2387                                         }
2388                                 }
2389                                 /* If there are still Modifications left, put the opattrs
2390                                  * back, and let be_modify run. Otherwise, append the opattrs
2391                                  * to the orr_modlist.
2392                                  */
2393                                 if ( dni.mods ) {
2394                                         mod = dni.mods;
2395                                         /* don't set a CSN for the rename op */
2396                                         if ( syncCSN )
2397                                                 slap_graduate_commit_csn( op );
2398                                 } else {
2399                                         mod = op->orr_modlist;
2400                                         just_rename = 1;
2401                                 }
2402                                 for ( ; mod->sml_next; mod=mod->sml_next );
2403                                 mod->sml_next = m2;
2404                         }
2405                         op->o_bd = si->si_wbe;
2406                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2407                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2408                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2409
2410                         slap_mods_free( op->orr_modlist, 1 );
2411                         Debug( LDAP_DEBUG_SYNC,
2412                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2413                                         si->si_ridtxt, rc, 0 );
2414                         op->o_bd = be;
2415                         /* Renamed entries may still have other mods so just fallthru */
2416                         op->o_req_dn = entry->e_name;
2417                         op->o_req_ndn = entry->e_nname;
2418                         /* Use CSN on the modify */
2419                         if ( syncCSN && !just_rename )
2420                                 slap_queue_csn( op, syncCSN );
2421                 }
2422                 if ( dni.mods ) {
2423                         op->o_tag = LDAP_REQ_MODIFY;
2424                         op->orm_modlist = dni.mods;
2425                         op->orm_no_opattrs = 1;
2426                         op->o_bd = si->si_wbe;
2427
2428                         rc = op->o_bd->be_modify( op, &rs_modify );
2429                         slap_mods_free( op->orm_modlist, 1 );
2430                         op->orm_no_opattrs = 0;
2431                         Debug( LDAP_DEBUG_SYNC,
2432                                         "syncrepl_entry: %s be_modify (%d)\n",
2433                                         si->si_ridtxt, rc, 0 );
2434                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2435                                 Debug( LDAP_DEBUG_ANY,
2436                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2437                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2438                         }
2439                         op->o_bd = be;
2440                 } else if ( !dni.renamed ) {
2441                         Debug( LDAP_DEBUG_SYNC,
2442                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2443                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2444                 }
2445                 goto done;
2446         case LDAP_SYNC_DELETE :
2447                 if ( !BER_BVISNULL( &dni.dn ) ) {
2448                         op->o_req_dn = dni.dn;
2449                         op->o_req_ndn = dni.ndn;
2450                         op->o_tag = LDAP_REQ_DELETE;
2451                         op->o_bd = si->si_wbe;
2452                         rc = op->o_bd->be_delete( op, &rs_delete );
2453                         Debug( LDAP_DEBUG_SYNC,
2454                                         "syncrepl_entry: %s be_delete (%d)\n",
2455                                         si->si_ridtxt, rc, 0 );
2456
2457                         while ( rs_delete.sr_err == LDAP_SUCCESS
2458                                 && op->o_delete_glue_parent ) {
2459                                 op->o_delete_glue_parent = 0;
2460                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2461                                         slap_callback cb = { NULL };
2462                                         cb.sc_response = slap_null_cb;
2463                                         dnParent( &op->o_req_ndn, &pdn );
2464                                         op->o_req_dn = pdn;
2465                                         op->o_req_ndn = pdn;
2466                                         op->o_callback = &cb;
2467                                         op->o_bd->be_delete( op, &rs_delete );
2468                                 } else {
2469                                         break;
2470                                 }
2471                         }
2472                         op->o_bd = be;
2473                 }
2474                 goto done;
2475
2476         default :
2477                 Debug( LDAP_DEBUG_ANY,
2478                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2479                 goto done;
2480         }
2481
2482 done:
2483         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2484                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2485                 BER_BVZERO( &syncUUID_strrep );
2486         }
2487         if ( !BER_BVISNULL( &dni.ndn ) ) {
2488                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2489         }
2490         if ( !BER_BVISNULL( &dni.dn ) ) {
2491                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2492         }
2493         if ( entry ) {
2494                 entry_free( entry );
2495         }
2496         if ( syncCSN ) {
2497                 slap_graduate_commit_csn( op );
2498         }
2499         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2500                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2501         }
2502         BER_BVZERO( &op->o_csn );
2503         return rc;
2504 }
2505
2506 static struct berval gcbva[] = {
2507         BER_BVC("top"),
2508         BER_BVC("glue"),
2509         BER_BVNULL
2510 };
2511
2512 #define NP_DELETE_ONE   2
2513
2514 static void
2515 syncrepl_del_nonpresent(
2516         Operation *op,
2517         syncinfo_t *si,
2518         BerVarray uuids,
2519         struct sync_cookie *sc,
2520         int m )
2521 {
2522         Backend* be = op->o_bd;
2523         slap_callback   cb = { NULL };
2524         SlapReply       rs_search = {REP_RESULT};
2525         SlapReply       rs_delete = {REP_RESULT};
2526         SlapReply       rs_modify = {REP_RESULT};
2527         struct nonpresent_entry *np_list, *np_prev;
2528         int rc;
2529         AttributeName   an[2];
2530
2531         struct berval pdn = BER_BVNULL;
2532         struct berval csn;
2533
2534         op->o_req_dn = si->si_base;
2535         op->o_req_ndn = si->si_base;
2536
2537         cb.sc_response = nonpresent_callback;
2538         cb.sc_private = si;
2539
2540         op->o_callback = &cb;
2541         op->o_tag = LDAP_REQ_SEARCH;
2542         op->ors_scope = si->si_scope;
2543         op->ors_deref = LDAP_DEREF_NEVER;
2544         op->o_time = slap_get_time();
2545         op->ors_tlimit = SLAP_NO_LIMIT;
2546
2547
2548         if ( uuids ) {
2549                 Filter uf;
2550                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2551                 int i;
2552
2553                 op->ors_attrsonly = 1;
2554                 op->ors_attrs = slap_anlist_no_attrs;
2555                 op->ors_limit = NULL;
2556                 op->ors_filter = &uf;
2557
2558                 uf.f_ava = &eq;
2559                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2560                 uf.f_next = NULL;
2561                 uf.f_choice = LDAP_FILTER_EQUALITY;
2562                 si->si_refreshDelete |= NP_DELETE_ONE;
2563
2564                 for (i=0; uuids[i].bv_val; i++) {
2565                         op->ors_slimit = 1;
2566                         uf.f_av_value = uuids[i];
2567                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2568                         rc = be->be_search( op, &rs_search );
2569                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2570                 }
2571                 si->si_refreshDelete ^= NP_DELETE_ONE;
2572         } else {
2573                 Filter *cf, *of;
2574
2575                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2576                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2577                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2578                 op->ors_attrs = an;
2579                 op->ors_slimit = SLAP_NO_LIMIT;
2580                 op->ors_attrsonly = 0;
2581                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2582                 /* In multimaster, updates can continue to arrive while
2583                  * we're searching. Limit the search result to entries
2584                  * older than all of our cookie CSNs.
2585                  */
2586                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2587                         Filter *f;
2588                         int i;
2589                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2590                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2591                         f = cf;
2592                         f->f_choice = LDAP_FILTER_AND;
2593                         f->f_next = NULL;
2594                         f->f_and = f+1;
2595                         of = f->f_and;
2596                         for ( i=0; i<sc->numcsns; i++ ) {
2597                                 f = of;
2598                                 f->f_choice = LDAP_FILTER_LE;
2599                                 f->f_ava = (AttributeAssertion *)(f+1);
2600                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2601                                 f->f_av_value = sc->ctxcsn[i];
2602                                 f->f_next = (Filter *)(f->f_ava+1);
2603                                 of = f->f_next;
2604                         }
2605                         f->f_next = op->ors_filter;
2606                         of = op->ors_filter;
2607                         op->ors_filter = cf;
2608                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2609                 } else {
2610                         cf = NULL;
2611                         op->ors_filterstr = si->si_filterstr;
2612                 }
2613                 op->o_nocaching = 1;
2614
2615                 if ( limits_check( op, &rs_search ) == 0 ) {
2616                         rc = be->be_search( op, &rs_search );
2617                 }
2618                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2619                         op->o_tmpfree( cf, op->o_tmpmemctx );
2620                         op->ors_filter = of;
2621                 }
2622                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2623                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2624                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2625                 }
2626
2627         }
2628
2629         op->o_nocaching = 0;
2630
2631         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2632
2633                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2634                         csn = sc->ctxcsn[m];
2635                 } else {
2636                         csn = si->si_syncCookie.ctxcsn[0];
2637                 }
2638
2639                 op->o_bd = si->si_wbe;
2640                 slap_queue_csn( op, &csn );
2641
2642                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2643                 while ( np_list != NULL ) {
2644                         LDAP_LIST_REMOVE( np_list, npe_link );
2645                         np_prev = np_list;
2646                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2647                         op->o_tag = LDAP_REQ_DELETE;
2648                         op->o_callback = &cb;
2649                         cb.sc_response = null_callback;
2650                         cb.sc_private = si;
2651                         op->o_req_dn = *np_prev->npe_name;
2652                         op->o_req_ndn = *np_prev->npe_nname;
2653                         rc = op->o_bd->be_delete( op, &rs_delete );
2654                         Debug( LDAP_DEBUG_SYNC,
2655                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2656                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2657
2658                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2659                                 Modifications mod1, mod2;
2660                                 mod1.sml_op = LDAP_MOD_REPLACE;
2661                                 mod1.sml_flags = 0;
2662                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2663                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2664                                 mod1.sml_numvals = 2;
2665                                 mod1.sml_values = &gcbva[0];
2666                                 mod1.sml_nvalues = NULL;
2667                                 mod1.sml_next = &mod2;
2668
2669                                 mod2.sml_op = LDAP_MOD_REPLACE;
2670                                 mod2.sml_flags = 0;
2671                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2672                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2673                                 mod2.sml_numvals = 1;
2674                                 mod2.sml_values = &gcbva[1];
2675                                 mod2.sml_nvalues = NULL;
2676                                 mod2.sml_next = NULL;
2677
2678                                 op->o_tag = LDAP_REQ_MODIFY;
2679                                 op->orm_modlist = &mod1;
2680
2681                                 rc = op->o_bd->be_modify( op, &rs_modify );
2682                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2683                         }
2684
2685                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2686                                         op->o_delete_glue_parent ) {
2687                                 op->o_delete_glue_parent = 0;
2688                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2689                                         slap_callback cb = { NULL };
2690                                         cb.sc_response = slap_null_cb;
2691                                         dnParent( &op->o_req_ndn, &pdn );
2692                                         op->o_req_dn = pdn;
2693                                         op->o_req_ndn = pdn;
2694                                         op->o_callback = &cb;
2695                                         /* give it a root privil ? */
2696                                         op->o_bd->be_delete( op, &rs_delete );
2697                                 } else {
2698                                         break;
2699                                 }
2700                         }
2701
2702                         op->o_delete_glue_parent = 0;
2703
2704                         ber_bvfree( np_prev->npe_name );
2705                         ber_bvfree( np_prev->npe_nname );
2706                         ch_free( np_prev );
2707
2708                         if ( slapd_shutdown ) {
2709                                 break;
2710                         }
2711                 }
2712
2713                 slap_graduate_commit_csn( op );
2714                 op->o_bd = be;
2715
2716                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2717                 BER_BVZERO( &op->o_csn );
2718         }
2719
2720         return;
2721 }
2722
2723 int
2724 syncrepl_add_glue(
2725         Operation* op,
2726         Entry *e )
2727 {
2728         Backend *be = op->o_bd;
2729         slap_callback cb = { NULL };
2730         Attribute       *a;
2731         int     rc;
2732         int suffrdns;
2733         int i;
2734         struct berval dn = BER_BVNULL;
2735         struct berval ndn = BER_BVNULL;
2736         Entry   *glue;
2737         SlapReply       rs_add = {REP_RESULT};
2738         struct berval   ptr, nptr;
2739         char            *comma;
2740
2741         op->o_tag = LDAP_REQ_ADD;
2742         op->o_callback = &cb;
2743         cb.sc_response = null_callback;
2744         cb.sc_private = NULL;
2745
2746         dn = e->e_name;
2747         ndn = e->e_nname;
2748
2749         /* count RDNs in suffix */
2750         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2751                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2752                         comma++;
2753                         ptr.bv_len -= comma - ptr.bv_val;
2754                         ptr.bv_val = comma;
2755                         i++;
2756                 }
2757                 suffrdns = i;
2758         } else {
2759                 /* suffix is "" */
2760                 suffrdns = 0;
2761         }
2762
2763         /* Start with BE suffix */
2764         ptr = dn;
2765         for ( i = 0; i < suffrdns; i++ ) {
2766                 comma = ber_bvrchr( &ptr, ',' );
2767                 if ( comma != NULL ) {
2768                         ptr.bv_len = comma - ptr.bv_val;
2769                 } else {
2770                         ptr.bv_len = 0;
2771                         break;
2772                 }
2773         }
2774
2775         if ( !BER_BVISEMPTY( &ptr ) ) {
2776                 dn.bv_len -= ptr.bv_len + 1;
2777                 dn.bv_val += ptr.bv_len + 1;
2778         }
2779
2780         /* the normalizedDNs are always the same length, no counting
2781          * required.
2782          */
2783         nptr = ndn;
2784         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2785                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2786                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2787
2788                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2789
2790         } else {
2791                 nptr.bv_len = 0;
2792         }
2793
2794         while ( ndn.bv_val > e->e_nname.bv_val ) {
2795                 glue = entry_alloc();
2796                 ber_dupbv( &glue->e_name, &dn );
2797                 ber_dupbv( &glue->e_nname, &ndn );
2798
2799                 a = attr_alloc( slap_schema.si_ad_objectClass );
2800
2801                 a->a_numvals = 2;
2802                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2803                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2804                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2805                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2806
2807                 a->a_nvals = a->a_vals;
2808
2809                 a->a_next = glue->e_attrs;
2810                 glue->e_attrs = a;
2811
2812                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2813
2814                 a->a_numvals = 1;
2815                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2816                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2817                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2818
2819                 a->a_nvals = a->a_vals;
2820
2821                 a->a_next = glue->e_attrs;
2822                 glue->e_attrs = a;
2823
2824                 op->o_req_dn = glue->e_name;
2825                 op->o_req_ndn = glue->e_nname;
2826                 op->ora_e = glue;
2827                 rc = be->be_add ( op, &rs_add );
2828                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2829                         if ( op->ora_e == glue )
2830                                 be_entry_release_w( op, glue );
2831                 } else {
2832                 /* incl. ALREADY EXIST */
2833                         entry_free( glue );
2834                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2835                                 entry_free( e );
2836                                 return rc;
2837                         }
2838                 }
2839
2840                 /* Move to next child */
2841                 comma = ber_bvrchr( &ptr, ',' );
2842                 if ( comma == NULL ) {
2843                         break;
2844                 }
2845                 ptr.bv_len = comma - ptr.bv_val;
2846
2847                 dn.bv_val = ++comma;
2848                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2849
2850                 comma = ber_bvrchr( &nptr, ',' );
2851                 assert( comma != NULL );
2852                 nptr.bv_len = comma - nptr.bv_val;
2853
2854                 ndn.bv_val = ++comma;
2855                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2856         }
2857
2858         op->o_req_dn = e->e_name;
2859         op->o_req_ndn = e->e_nname;
2860         op->ora_e = e;
2861         rc = be->be_add ( op, &rs_add );
2862         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2863                 if ( op->ora_e == e )
2864                         be_entry_release_w( op, e );
2865         } else {
2866                 entry_free( e );
2867         }
2868
2869         return rc;
2870 }
2871
2872 static int
2873 syncrepl_updateCookie(
2874         syncinfo_t *si,
2875         Operation *op,
2876         struct berval *pdn,
2877         struct sync_cookie *syncCookie )
2878 {
2879         Backend *be = op->o_bd;
2880         Modifications mod;
2881         struct berval first = BER_BVNULL;
2882
2883         int rc, i, j;
2884         ber_len_t len;
2885
2886         slap_callback cb = { NULL };
2887         SlapReply       rs_modify = {REP_RESULT};
2888
2889         mod.sml_op = LDAP_MOD_REPLACE;
2890         mod.sml_desc = slap_schema.si_ad_contextCSN;
2891         mod.sml_type = mod.sml_desc->ad_cname;
2892         mod.sml_flags = SLAP_MOD_INTERNAL;
2893         mod.sml_nvalues = NULL;
2894         mod.sml_next = NULL;
2895
2896         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2897
2898         /* clone the cookieState CSNs so we can Replace the whole thing */
2899         mod.sml_numvals = si->si_cookieState->cs_num;
2900         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2901         for ( i=0; i<mod.sml_numvals; i++ )
2902                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2903         BER_BVZERO( &mod.sml_values[i] );
2904
2905         /* find any CSNs in the syncCookie that are newer than the cookieState */
2906         for ( i=0; i<syncCookie->numcsns; i++ ) {
2907                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2908                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2909                                 continue;
2910                         len = syncCookie->ctxcsn[i].bv_len;
2911                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2912                                 len = si->si_cookieState->cs_vals[j].bv_len;
2913                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2914                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2915                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2916                                 if ( BER_BVISNULL( &first ) ) {
2917                                         first = syncCookie->ctxcsn[i];
2918
2919                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2920                                 {
2921                                         first = syncCookie->ctxcsn[i];
2922                                 }
2923                         }
2924                         break;
2925                 }
2926                 /* there was no match for this SID, it's a new CSN */
2927                 if ( j == si->si_cookieState->cs_num ) {
2928                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2929                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2930                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2931                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2932                         if ( BER_BVISNULL( &first ) ) {
2933                                 first = syncCookie->ctxcsn[i];
2934                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2935                         {
2936                                 first = syncCookie->ctxcsn[i];
2937                         }
2938                 }
2939         }
2940         /* Should never happen, ITS#5065 */
2941         if ( BER_BVISNULL( &first )) {
2942                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2943                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2944                 return 0;
2945         }
2946         op->o_bd = si->si_wbe;
2947         slap_queue_csn( op, &first );
2948
2949         op->o_tag = LDAP_REQ_MODIFY;
2950
2951         cb.sc_response = null_callback;
2952         cb.sc_private = si;
2953
2954         op->o_callback = &cb;
2955         op->o_req_dn = op->o_bd->be_suffix[0];
2956         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2957
2958         /* update contextCSN */
2959         op->o_dont_replicate = 1;
2960
2961         op->orm_modlist = &mod;
2962         op->orm_no_opattrs = 1;
2963         rc = op->o_bd->be_modify( op, &rs_modify );
2964         op->orm_no_opattrs = 0;
2965         op->o_dont_replicate = 0;
2966
2967         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2968                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2969                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2970                 /* If we replaced any old values */
2971                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2972                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2973                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2974                                                 &mod.sml_values[i] );
2975                 }
2976                 /* Handle any added values */
2977                 if ( i < mod.sml_numvals ) {
2978                         si->si_cookieState->cs_num = mod.sml_numvals;
2979                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2980                         free( si->si_cookieState->cs_sids );
2981                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2982                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2983                 }
2984
2985                 si->si_cookieState->cs_age++;
2986                 si->si_cookieAge = si->si_cookieState->cs_age;
2987         } else {
2988                 Debug( LDAP_DEBUG_ANY,
2989                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2990                         si->si_ridtxt, rs_modify.sr_err, 0 );
2991         }
2992         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2993
2994         op->o_bd = be;
2995         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2996         BER_BVZERO( &op->o_csn );
2997         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2998         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2999
3000         return rc;
3001 }
3002
3003 static void
3004 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3005         Modifications ***mret, Modifications ***mcur )
3006 {
3007         int i, j;
3008         Modifications *mod, **modtail;
3009
3010         modtail = *mret;
3011
3012         if ( old ) {
3013                 int n, o, nn, no;
3014                 struct berval **adds, **dels;
3015                 /* count old and new */
3016                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3017                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3018
3019                 /* there MUST be both old and new values */
3020                 assert( o != 0 );
3021                 assert( n != 0 );
3022                 j = 0;
3023
3024                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3025                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3026
3027                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3028                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3029
3030                 nn = n; no = o;
3031
3032                 for ( i=0; i<o; i++ ) {
3033                         for ( j=0; j<n; j++ ) {
3034                                 if ( !adds[j] )
3035                                         continue;
3036                                 if ( bvmatch( dels[i], adds[j] ) ) {
3037                                         no--;
3038                                         nn--;
3039                                         adds[j] = NULL;
3040                                         dels[i] = NULL;
3041                                         break;
3042                                 }
3043                         }
3044                 }
3045
3046                 /* Don't delete/add an objectClass, always use the replace op.
3047                  * Modify would fail if provider has replaced entry with a new,
3048                  * and the new explicitly includes a superior of a class that was
3049                  * only included implicitly in the old entry.  Ref ITS#5517.
3050                  *
3051                  * Also use replace op if attr has no equality matching rule.
3052                  * (ITS#5781)
3053                  */
3054                 if ( nn && no < o &&
3055                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3056                          !old->a_desc->ad_type->sat_equality ))
3057                         no = o;
3058
3059                 i = j;
3060                 /* all old values were deleted, just use the replace op */
3061                 if ( no == o ) {
3062                         i = j-1;
3063                 } else if ( no ) {
3064                 /* delete some values */
3065                         mod = ch_malloc( sizeof( Modifications ) );
3066                         mod->sml_op = LDAP_MOD_DELETE;
3067                         mod->sml_flags = 0;
3068                         mod->sml_desc = old->a_desc;
3069                         mod->sml_type = mod->sml_desc->ad_cname;
3070                         mod->sml_numvals = no;
3071                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3072                         if ( old->a_vals != old->a_nvals ) {
3073                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3074                         } else {
3075                                 mod->sml_nvalues = NULL;
3076                         }
3077                         j = 0;
3078                         for ( i = 0; i < o; i++ ) {
3079                                 if ( !dels[i] ) continue;
3080                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3081                                 if ( mod->sml_nvalues ) {
3082                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3083                                 }
3084                                 j++;
3085                         }
3086                         BER_BVZERO( &mod->sml_values[j] );
3087                         if ( mod->sml_nvalues ) {
3088                                 BER_BVZERO( &mod->sml_nvalues[j] );
3089                         }
3090                         *modtail = mod;
3091                         modtail = &mod->sml_next;
3092                         i = j;
3093                 }
3094                 op->o_tmpfree( dels, op->o_tmpmemctx );
3095                 /* some values were added */
3096                 if ( nn && no < o ) {
3097                         mod = ch_malloc( sizeof( Modifications ) );
3098                         mod->sml_op = LDAP_MOD_ADD;
3099                         mod->sml_flags = 0;
3100                         mod->sml_desc = old->a_desc;
3101                         mod->sml_type = mod->sml_desc->ad_cname;
3102                         mod->sml_numvals = nn;
3103                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3104                         if ( old->a_vals != old->a_nvals ) {
3105                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3106                         } else {
3107                                 mod->sml_nvalues = NULL;
3108                         }
3109                         j = 0;
3110                         for ( i = 0; i < n; i++ ) {
3111                                 if ( !adds[i] ) continue;
3112                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3113                                 if ( mod->sml_nvalues ) {
3114                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3115                                 }
3116                                 j++;
3117                         }
3118                         BER_BVZERO( &mod->sml_values[j] );
3119                         if ( mod->sml_nvalues ) {
3120                                 BER_BVZERO( &mod->sml_nvalues[j] );
3121                         }
3122                         *modtail = mod;
3123                         modtail = &mod->sml_next;
3124                         i = j;
3125                 }
3126                 op->o_tmpfree( adds, op->o_tmpmemctx );
3127         } else {
3128                 /* new attr, just use the new mod */
3129                 i = 0;
3130                 j = 1;
3131         }
3132         /* advance to next element */
3133         mod = **mcur;
3134         if ( mod ) {
3135                 if ( i != j ) {
3136                         **mcur = mod->sml_next;
3137                         *modtail = mod;
3138                         modtail = &mod->sml_next;
3139                 } else {
3140                         *mcur = &mod->sml_next;
3141                 }
3142         }
3143         *mret = modtail;
3144 }
3145
3146 static int
3147 dn_callback(
3148         Operation*      op,
3149         SlapReply*      rs )
3150 {
3151         dninfo *dni = op->o_callback->sc_private;
3152
3153         if ( rs->sr_type == REP_SEARCH ) {
3154                 if ( !BER_BVISNULL( &dni->dn ) ) {
3155                         Debug( LDAP_DEBUG_ANY,
3156                                 "dn_callback : consistency error - "
3157                                 "entryUUID is not unique\n", 0, 0, 0 );
3158                 } else {
3159                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3160                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3161                         /* If there is a new entry, see if it differs from the old.
3162                          * We compare the non-normalized values so that cosmetic changes
3163                          * in the provider are always propagated.
3164                          */
3165                         if ( dni->new_entry ) {
3166                                 Modifications **modtail, **ml;
3167                                 Attribute *old, *new;
3168                                 struct berval old_rdn, new_rdn;
3169                                 struct berval old_p, new_p;
3170                                 int is_ctx, new_sup = 0;
3171
3172                                 /* If old entry is not a glue entry, make sure new entry
3173                                  * is actually newer than old entry
3174                                  */
3175                                 if ( !is_entry_glue( rs->sr_entry )) {
3176                                         old = attr_find( rs->sr_entry->e_attrs,
3177                                                 slap_schema.si_ad_objectClass );
3178                                         old = attr_find( rs->sr_entry->e_attrs,
3179                                                 slap_schema.si_ad_entryCSN );
3180                                         new = attr_find( dni->new_entry->e_attrs,
3181                                                 slap_schema.si_ad_entryCSN );
3182                                         if ( new && old ) {
3183                                                 int rc;
3184                                                 ber_len_t len = old->a_vals[0].bv_len;
3185                                                 if ( len > new->a_vals[0].bv_len )
3186                                                         len = new->a_vals[0].bv_len;
3187                                                 rc = memcmp( old->a_vals[0].bv_val,
3188                                                         new->a_vals[0].bv_val, len );
3189                                                 if ( rc > 0 ) {
3190                                                         Debug( LDAP_DEBUG_SYNC,
3191                                                                 "dn_callback : new entry is older than ours "
3192                                                                 "%s ours %s, new %s\n",
3193                                                                 rs->sr_entry->e_name.bv_val,
3194                                                                 old->a_vals[0].bv_val,
3195                                                                 new->a_vals[0].bv_val );
3196                                                         return LDAP_SUCCESS;
3197                                                 } else if ( rc == 0 ) {
3198                                                         Debug( LDAP_DEBUG_SYNC,
3199                                                                 "dn_callback : entries have identical CSN "
3200                                                                 "%s %s\n",
3201                                                                 rs->sr_entry->e_name.bv_val,
3202                                                                 old->a_vals[0].bv_val, 0 );
3203                                                         return LDAP_SUCCESS;
3204                                                 }
3205                                         }
3206                                 }
3207
3208                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3209                                         &op->o_bd->be_nsuffix[0] );
3210
3211                                 /* Did the DN change?
3212                                  * case changes in the parent are ignored,
3213                                  * we only want to know if the RDN was
3214                                  * actually changed.
3215                                  */
3216                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3217                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3218                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3219                                 dnParent( &dni->new_entry->e_nname, &new_p );
3220
3221                                 new_sup = !dn_match( &old_p, &new_p );
3222                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3223                                 {
3224                                         struct berval oldRDN, oldVal;
3225                                         AttributeDescription *ad = NULL;
3226                                         int oldpos, newpos;
3227                                         Attribute *a;
3228
3229                                         dni->renamed = 1;
3230                                         if ( new_sup )
3231                                                 dni->nnewSup = new_p;
3232
3233                                         /* See if the oldRDN was deleted */
3234                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3235                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3236                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3237                                                 oldRDN.bv_val );
3238                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3239                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3240                                         dni->oldDesc = ad;
3241                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3242                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3243                                         dni->oldNattr = a;
3244                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3245                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3246                                         if ( !a || oldpos != newpos || attr_valfind( a,
3247                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3248                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3249                                                 SLAP_MR_VALUE_OF_SYNTAX,
3250                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3251                                         {
3252                                                 dni->delOldRDN = 1;
3253                                         }
3254                                         /* Get the newRDN's desc */
3255                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3256                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3257                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3258                                         ad = NULL;
3259                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3260                                         dni->newDesc = ad;
3261
3262                                         /* A ModDN has happened, but in Refresh mode other
3263                                          * changes may have occurred before we picked it up.
3264                                          * So fallthru to regular Modify processing.
3265                                          */
3266                                 }
3267
3268                                 modtail = &dni->mods;
3269                                 ml = dni->modlist;
3270
3271                                 /* We assume that attributes are saved in the same order
3272                                  * in the remote and local databases. So if we walk through
3273                                  * the attributeDescriptions one by one they should match in
3274                                  * lock step. If not, look for an add or delete.
3275                                  */
3276                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3277                                                 old && new; )
3278                                 {
3279                                         /* If we've seen this before, use its mod now */
3280                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3281                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3282                                                 new = new->a_next;
3283                                                 continue;
3284                                         }
3285                                         /* Skip contextCSN */
3286                                         if ( is_ctx && old->a_desc ==
3287                                                 slap_schema.si_ad_contextCSN ) {
3288                                                 old = old->a_next;
3289                                                 continue;
3290                                         }
3291
3292                                         if ( old->a_desc != new->a_desc ) {
3293                                                 Modifications *mod;
3294                                                 Attribute *tmp;
3295
3296                                                 /* If it's just been re-added later,
3297                                                  * remember that we've seen it.
3298                                                  */
3299                                                 tmp = attr_find( new, old->a_desc );
3300                                                 if ( tmp ) {
3301                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3302                                                 } else {
3303                                                         /* If it's a new attribute, pull it in.
3304                                                          */
3305                                                         tmp = attr_find( old, new->a_desc );
3306                                                         if ( !tmp ) {
3307                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3308                                                                 new = new->a_next;
3309                                                                 continue;
3310                                                         }
3311                                                         /* Delete old attr */
3312                                                         mod = ch_malloc( sizeof( Modifications ) );
3313                                                         mod->sml_op = LDAP_MOD_DELETE;
3314                                                         mod->sml_flags = 0;
3315                                                         mod->sml_desc = old->a_desc;
3316                                                         mod->sml_type = mod->sml_desc->ad_cname;
3317                                                         mod->sml_numvals = 0;
3318                                                         mod->sml_values = NULL;
3319                                                         mod->sml_nvalues = NULL;
3320                                                         *modtail = mod;
3321                                                         modtail = &mod->sml_next;
3322                                                 }
3323                                                 old = old->a_next;
3324                                                 continue;
3325                                         }
3326                                         /* kludge - always update modifiersName so that it
3327                                          * stays co-located with the other mod opattrs. But only
3328                                          * if we know there are other valid mods.
3329                                          */
3330                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3331                                                 dni->mods )
3332                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3333                                         else
3334                                                 attr_cmp( op, old, new, &modtail, &ml );
3335                                         new = new->a_next;
3336                                         old = old->a_next;
3337                                 }
3338                                 *modtail = *ml;
3339                                 *ml = NULL;
3340                         }
3341                 }
3342         } else if ( rs->sr_type == REP_RESULT ) {
3343                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3344                         Debug( LDAP_DEBUG_ANY,
3345                                 "dn_callback : consistency error - "
3346                                 "entryUUID is not unique\n", 0, 0, 0 );
3347                 }
3348         }
3349
3350         return LDAP_SUCCESS;
3351 }
3352
3353 static int
3354 nonpresent_callback(
3355         Operation*      op,
3356         SlapReply*      rs )
3357 {
3358         syncinfo_t *si = op->o_callback->sc_private;
3359         Attribute *a;
3360         int count = 0;
3361         struct berval* present_uuid = NULL;
3362         struct nonpresent_entry *np_entry;
3363
3364         if ( rs->sr_type == REP_RESULT ) {
3365                 count = avl_free( si->si_presentlist, ch_free );
3366                 si->si_presentlist = NULL;
3367
3368         } else if ( rs->sr_type == REP_SEARCH ) {
3369                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3370                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3371
3372                         if ( a ) {
3373                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3374                                         syncuuid_cmp );
3375                         }
3376
3377                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3378                                 char buf[sizeof("rid=999 non")];
3379
3380                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3381                                         present_uuid ? "" : "non" );
3382
3383                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3384                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3385                         }
3386
3387                         if ( a == NULL ) return 0;
3388                 }
3389
3390                 if ( present_uuid == NULL ) {
3391                         np_entry = (struct nonpresent_entry *)
3392                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3393                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3394                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3395                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3396
3397                 } else {
3398                         avl_delete( &si->si_presentlist,
3399                                 &a->a_nvals[0], syncuuid_cmp );
3400                         ch_free( present_uuid );
3401                 }
3402         }
3403         return LDAP_SUCCESS;
3404 }
3405
3406 static int
3407 null_callback(
3408         Operation*      op,
3409         SlapReply*      rs )
3410 {
3411         if ( rs->sr_err != LDAP_SUCCESS &&
3412                 rs->sr_err != LDAP_REFERRAL &&
3413                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3414                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3415                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3416         {
3417                 Debug( LDAP_DEBUG_ANY,
3418                         "null_callback : error code 0x%x\n",
3419                         rs->sr_err, 0, 0 );
3420         }
3421         return LDAP_SUCCESS;
3422 }
3423
3424 static struct berval *
3425 slap_uuidstr_from_normalized(
3426         struct berval* uuidstr,
3427         struct berval* normalized,
3428         void *ctx )
3429 {
3430 #if 0
3431         struct berval *new;
3432         unsigned char nibble;
3433         int i, d = 0;
3434
3435         if ( normalized == NULL ) return NULL;
3436         if ( normalized->bv_len != 16 ) return NULL;
3437
3438         if ( uuidstr ) {
3439                 new = uuidstr;
3440         } else {
3441                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3442                 if ( new == NULL ) {
3443                         return NULL;
3444                 }
3445         }
3446
3447         new->bv_len = 36;
3448
3449         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3450                 if ( new != uuidstr ) {
3451                         slap_sl_free( new, ctx );
3452                 }
3453                 return NULL;
3454         }
3455
3456         for ( i = 0; i < 16; i++ ) {
3457                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3458                         new->bv_val[(i<<1)+d] = '-';
3459                         d += 1;
3460                 }
3461
3462                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3463                 if ( nibble < 10 ) {
3464                         new->bv_val[(i<<1)+d] = nibble + '0';
3465                 } else {
3466                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3467                 }
3468
3469                 nibble = (normalized->bv_val[i]) & 0xF;
3470                 if ( nibble < 10 ) {
3471                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3472                 } else {
3473                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3474                 }
3475         }
3476
3477         new->bv_val[new->bv_len] = '\0';
3478         return new;
3479 #endif
3480
3481         struct berval   *new;
3482         int             rc = 0;
3483
3484         if ( normalized == NULL ) return NULL;
3485         if ( normalized->bv_len != 16 ) return NULL;
3486
3487         if ( uuidstr ) {
3488                 new = uuidstr;
3489
3490         } else {
3491                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3492                 if ( new == NULL ) {
3493                         return NULL;
3494                 }
3495         }
3496
3497         new->bv_len = 36;
3498
3499         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3500                 rc = 1;
3501                 goto done;
3502         }
3503
3504         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3505                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3506
3507 done:;
3508         if ( rc == -1 ) {
3509                 if ( new != NULL ) {
3510                         if ( new->bv_val != NULL ) {
3511                                 slap_sl_free( new->bv_val, ctx );
3512                         }
3513
3514                         if ( new != uuidstr ) {
3515                                 slap_sl_free( new, ctx );
3516                         }
3517                 }
3518                 new = NULL;
3519
3520         } else {
3521                 new->bv_len = rc;
3522         }
3523
3524         return new;
3525 }
3526
3527 static int
3528 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3529 {
3530         const struct berval *uuid1 = v_uuid1;
3531         const struct berval *uuid2 = v_uuid2;
3532         int rc = uuid1->bv_len - uuid2->bv_len;
3533         if ( rc ) return rc;
3534         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3535 }
3536
3537 void
3538 syncinfo_free( syncinfo_t *sie, int free_all )
3539 {
3540         syncinfo_t *si_next;
3541
3542         if ( free_all && sie->si_cookieState ) {
3543                 ch_free( sie->si_cookieState->cs_sids );
3544                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3545                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3546                 ch_free( sie->si_cookieState );
3547         }
3548         do {
3549                 si_next = sie->si_next;
3550
3551                 if ( sie->si_ld ) {
3552                         if ( sie->si_conn ) {
3553                                 connection_client_stop( sie->si_conn );
3554                                 sie->si_conn = NULL;
3555                         }
3556                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3557                 }
3558
3559                 /* re-fetch it, in case it was already removed */
3560                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3561                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3562                 if ( sie->si_re ) {
3563                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3564                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3565                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3566                 }
3567
3568                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3569                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3570
3571                 bindconf_free( &sie->si_bindconf );
3572
3573                 if ( sie->si_filterstr.bv_val ) {
3574                         ch_free( sie->si_filterstr.bv_val );
3575                 }
3576                 if ( sie->si_logfilterstr.bv_val ) {
3577                         ch_free( sie->si_logfilterstr.bv_val );
3578                 }
3579                 if ( sie->si_base.bv_val ) {
3580                         ch_free( sie->si_base.bv_val );
3581                 }
3582                 if ( sie->si_logbase.bv_val ) {
3583                         ch_free( sie->si_logbase.bv_val );
3584                 }
3585                 if ( sie->si_attrs ) {
3586                         int i = 0;
3587                         while ( sie->si_attrs[i] != NULL ) {
3588                                 ch_free( sie->si_attrs[i] );
3589                                 i++;
3590                         }
3591                         ch_free( sie->si_attrs );
3592                 }
3593                 if ( sie->si_exattrs ) {
3594                         int i = 0;
3595                         while ( sie->si_exattrs[i] != NULL ) {
3596                                 ch_free( sie->si_exattrs[i] );
3597                                 i++;
3598                         }
3599                         ch_free( sie->si_exattrs );
3600                 }
3601                 if ( sie->si_anlist ) {
3602                         int i = 0;
3603                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3604                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3605                                 i++;
3606                         }
3607                         ch_free( sie->si_anlist );
3608                 }
3609                 if ( sie->si_exanlist ) {
3610                         int i = 0;
3611                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3612                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3613                                 i++;
3614                         }
3615                         ch_free( sie->si_exanlist );
3616                 }
3617                 if ( sie->si_retryinterval ) {
3618                         ch_free( sie->si_retryinterval );
3619                 }
3620                 if ( sie->si_retrynum ) {
3621                         ch_free( sie->si_retrynum );
3622                 }
3623                 if ( sie->si_retrynum_init ) {
3624                         ch_free( sie->si_retrynum_init );
3625                 }
3626                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3627                 if ( sie->si_presentlist ) {
3628                     avl_free( sie->si_presentlist, ch_free );
3629                 }
3630                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3631                         struct nonpresent_entry* npe;
3632                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3633                         LDAP_LIST_REMOVE( npe, npe_link );
3634                         if ( npe->npe_name ) {
3635                                 if ( npe->npe_name->bv_val ) {
3636                                         ch_free( npe->npe_name->bv_val );
3637                                 }
3638                                 ch_free( npe->npe_name );
3639                         }
3640                         if ( npe->npe_nname ) {
3641                                 if ( npe->npe_nname->bv_val ) {
3642                                         ch_free( npe->npe_nname->bv_val );
3643                                 }
3644                                 ch_free( npe->npe_nname );
3645                         }
3646                         ch_free( npe );
3647                 }
3648                 ch_free( sie );
3649                 sie = si_next;
3650         } while ( free_all && si_next );
3651 }
3652
3653
3654
3655 /* NOTE: used & documented in slapd.conf(5) */
3656 #define IDSTR                   "rid"
3657 #define PROVIDERSTR             "provider"
3658 #define SCHEMASTR               "schemachecking"
3659 #define FILTERSTR               "filter"
3660 #define SEARCHBASESTR           "searchbase"
3661 #define SCOPESTR                "scope"
3662 #define ATTRSONLYSTR            "attrsonly"
3663 #define ATTRSSTR                "attrs"
3664 #define TYPESTR                 "type"
3665 #define INTERVALSTR             "interval"
3666 #define RETRYSTR                "retry"
3667 #define SLIMITSTR               "sizelimit"
3668 #define TLIMITSTR               "timelimit"
3669 #define SYNCDATASTR             "syncdata"
3670 #define LOGBASESTR              "logbase"
3671 #define LOGFILTERSTR    "logfilter"
3672
3673 /* FIXME: undocumented */
3674 #define EXATTRSSTR              "exattrs"
3675 #define MANAGEDSAITSTR          "manageDSAit"
3676
3677 /* mandatory */
3678 enum {
3679         GOT_RID                 = 0x00000001U,
3680         GOT_PROVIDER            = 0x00000002U,
3681         GOT_SCHEMACHECKING      = 0x00000004U,
3682         GOT_FILTER              = 0x00000008U,
3683         GOT_SEARCHBASE          = 0x00000010U,
3684         GOT_SCOPE               = 0x00000020U,
3685         GOT_ATTRSONLY           = 0x00000040U,
3686         GOT_ATTRS               = 0x00000080U,
3687         GOT_TYPE                = 0x00000100U,
3688         GOT_INTERVAL            = 0x00000200U,
3689         GOT_RETRY               = 0x00000400U,
3690         GOT_SLIMIT              = 0x00000800U,
3691         GOT_TLIMIT              = 0x00001000U,
3692         GOT_SYNCDATA            = 0x00002000U,
3693         GOT_LOGBASE             = 0x00004000U,
3694         GOT_LOGFILTER           = 0x00008000U,
3695         GOT_EXATTRS             = 0x00010000U,
3696         GOT_MANAGEDSAIT         = 0x00020000U,
3697         GOT_BINDCONF            = 0x00040000U,
3698
3699 /* check */
3700         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3701 };
3702
3703 static struct {
3704         struct berval key;
3705         int val;
3706 } scopes[] = {
3707         { BER_BVC("base"), LDAP_SCOPE_BASE },
3708         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3709         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3710         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3711         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3712         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3713         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3714         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3715         { BER_BVNULL, 0 }
3716 };
3717
3718 static slap_verbmasks datamodes[] = {
3719         { BER_BVC("default"), SYNCDATA_DEFAULT },
3720         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3721         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3722         { BER_BVNULL, 0 }
3723 };
3724
3725 static int
3726 parse_syncrepl_retry(
3727         ConfigArgs      *c,
3728         char            *arg,
3729         syncinfo_t      *si )
3730 {
3731         char **retry_list;
3732         int j, k, n;
3733         int use_default = 0;
3734
3735         char *val = arg + STRLENOF( RETRYSTR "=" );
3736         if ( strcasecmp( val, "undefined" ) == 0 ) {
3737                 val = "3600 +";
3738                 use_default = 1;
3739         }
3740
3741         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3742         retry_list[0] = NULL;
3743
3744         slap_str2clist( &retry_list, val, " ,\t" );
3745
3746         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3747         n = k / 2;
3748         if ( k % 2 ) {
3749                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3750                         "Error: incomplete syncrepl retry list" );
3751                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3752                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3753                         ch_free( retry_list[k] );
3754                 }
3755                 ch_free( retry_list );
3756                 return 1;
3757         }
3758         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3759         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3760         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3761         for ( j = 0; j < n; j++ ) {
3762                 unsigned long   t;
3763                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3764                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3765                                 "Error: invalid retry interval \"%s\" (#%d)",
3766                                 retry_list[j*2], j );
3767                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3768                         /* do some cleanup */
3769                         return 1;
3770                 }
3771                 si->si_retryinterval[j] = (time_t)t;
3772                 if ( *retry_list[j*2+1] == '+' ) {
3773                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3774                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3775                         j++;
3776                         break;
3777                 } else {
3778                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3779                                         || si->si_retrynum_init[j] <= 0 )
3780                         {
3781                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3782                                         "Error: invalid initial retry number \"%s\" (#%d)",
3783                                         retry_list[j*2+1], j );
3784                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3785                                 /* do some cleanup */
3786                                 return 1;
3787                         }
3788                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3789                                         || si->si_retrynum[j] <= 0 )
3790                         {
3791                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3792                                         "Error: invalid retry number \"%s\" (#%d)",
3793                                         retry_list[j*2+1], j );
3794                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3795                                 /* do some cleanup */
3796                                 return 1;
3797                         }
3798                 }
3799         }
3800         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3801         si->si_retrynum[j] = RETRYNUM_TAIL;
3802         si->si_retryinterval[j] = 0;
3803
3804         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3805                 ch_free( retry_list[k] );
3806         }
3807         ch_free( retry_list );
3808         if ( !use_default ) {
3809                 si->si_got |= GOT_RETRY;
3810         }
3811
3812         return 0;
3813 }
3814
3815 static int
3816 parse_syncrepl_line(
3817         ConfigArgs      *c,
3818         syncinfo_t      *si )
3819 {
3820         int     i;
3821         char    *val;
3822
3823         for ( i = 1; i < c->argc; i++ ) {
3824                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3825                                         STRLENOF( IDSTR "=" ) ) )
3826                 {
3827                         int tmp;
3828                         /* '\0' string terminator accounts for '=' */
3829                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3830                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3831                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3832                                         "Error: parse_syncrepl_line: "
3833                                         "unable to parse syncrepl id \"%s\"", val );
3834                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3835                                 return -1;
3836                         }
3837                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3838                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3839                                         "Error: parse_syncrepl_line: "
3840                                         "syncrepl id %d is out of range [0..4095]", tmp );
3841                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3842                                 return -1;
3843                         }
3844                         si->si_rid = tmp;
3845                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3846                         si->si_got |= GOT_RID;
3847                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3848                                         STRLENOF( PROVIDERSTR "=" ) ) )
3849                 {
3850                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3851                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3852                         si->si_got |= GOT_PROVIDER;
3853                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3854                                         STRLENOF( SCHEMASTR "=" ) ) )
3855                 {
3856                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3857                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3858                                 si->si_schemachecking = 1;
3859                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3860                                 si->si_schemachecking = 0;
3861                         } else {
3862                                 si->si_schemachecking = 1;
3863                         }
3864                         si->si_got |= GOT_SCHEMACHECKING;
3865                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3866                                         STRLENOF( FILTERSTR "=" ) ) )
3867                 {
3868                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3869                         if ( si->si_filterstr.bv_val )
3870                                 ch_free( si->si_filterstr.bv_val );
3871                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3872                         si->si_got |= GOT_FILTER;
3873                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3874                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3875                 {
3876                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3877                         if ( si->si_logfilterstr.bv_val )
3878                                 ch_free( si->si_logfilterstr.bv_val );
3879                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3880                         si->si_got |= GOT_LOGFILTER;
3881                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3882                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3883                 {
3884                         struct berval   bv;
3885                         int             rc;
3886
3887                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3888                         if ( si->si_base.bv_val ) {
3889                                 ch_free( si->si_base.bv_val );
3890                         }
3891                         ber_str2bv( val, 0, 0, &bv );
3892                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3893                         if ( rc != LDAP_SUCCESS ) {
3894                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3895                                         "Invalid base DN \"%s\": %d (%s)",
3896                                         val, rc, ldap_err2string( rc ) );
3897                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3898                                 return -1;
3899                         }
3900                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3901                                 ch_free( si->si_base.bv_val );
3902                                 BER_BVZERO( &si->si_base );
3903                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3904                                         "Base DN \"%s\" is not within the database naming context",
3905                                         val );
3906                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3907                                 return -1;
3908                         }
3909                         si->si_got |= GOT_SEARCHBASE;
3910                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3911                                         STRLENOF( LOGBASESTR "=" ) ) )
3912                 {
3913                         struct berval   bv;
3914                         int             rc;
3915
3916                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3917                         if ( si->si_logbase.bv_val ) {
3918                                 ch_free( si->si_logbase.bv_val );
3919                         }
3920                         ber_str2bv( val, 0, 0, &bv );
3921                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3922                         if ( rc != LDAP_SUCCESS ) {
3923                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3924                                         "Invalid logbase DN \"%s\": %d (%s)",
3925                                         val, rc, ldap_err2string( rc ) );
3926                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3927                                 return -1;
3928                         }
3929                         si->si_got |= GOT_LOGBASE;
3930                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3931                                         STRLENOF( SCOPESTR "=" ) ) )
3932                 {
3933                         int j;
3934                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3935                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3936                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3937                                         si->si_scope = scopes[j].val;
3938                                         break;
3939                                 }
3940                         }
3941                         if ( BER_BVISNULL(&scopes[j].key) ) {
3942                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3943                                         "Error: parse_syncrepl_line: "
3944                                         "unknown scope \"%s\"", val);
3945                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3946                                 return -1;
3947                         }
3948                         si->si_got |= GOT_SCOPE;
3949                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3950                                         STRLENOF( ATTRSONLYSTR ) ) )
3951                 {
3952                         si->si_attrsonly = 1;
3953                         si->si_got |= GOT_ATTRSONLY;
3954                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3955                                         STRLENOF( ATTRSSTR "=" ) ) )
3956                 {
3957                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3958                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3959                                 char *attr_fname;
3960                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3961                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3962                                 if ( si->si_anlist == NULL ) {
3963                                         ch_free( attr_fname );
3964                                         return -1;
3965                                 }
3966                                 si->si_anfile = attr_fname;
3967                         } else {
3968                                 char *str, *s, *next;
3969                                 const char *delimstr = " ,\t";
3970                                 str = ch_strdup( val );
3971                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3972                                                 s != NULL;
3973                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3974                                 {
3975                                         if ( strlen(s) == 1 && *s == '*' ) {
3976                                                 si->si_allattrs = 1;
3977                                                 val[ s - str ] = delimstr[0];
3978                                         }
3979                                         if ( strlen(s) == 1 && *s == '+' ) {
3980                                                 si->si_allopattrs = 1;
3981                                                 val [ s - str ] = delimstr[0];
3982                                         }
3983                                 }
3984                                 ch_free( str );
3985                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3986                                 if ( si->si_anlist == NULL ) {
3987                                         return -1;
3988                                 }
3989                         }
3990                         si->si_got |= GOT_ATTRS;
3991                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3992                                         STRLENOF( EXATTRSSTR "=" ) ) )
3993                 {
3994                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3995                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3996                                 char *attr_fname;
3997                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3998                                 si->si_exanlist = file2anlist(
3999                                         si->si_exanlist, attr_fname, " ,\t" );
4000                                 if ( si->si_exanlist == NULL ) {
4001                                         ch_free( attr_fname );
4002                                         return -1;
4003                                 }
4004                                 ch_free( attr_fname );
4005                         } else {
4006                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4007                                 if ( si->si_exanlist == NULL ) {
4008                                         return -1;
4009                                 }
4010                         }
4011                         si->si_got |= GOT_EXATTRS;
4012                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4013                                         STRLENOF( TYPESTR "=" ) ) )
4014                 {
4015                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4016                         if ( !strncasecmp( val, "refreshOnly",
4017                                                 STRLENOF("refreshOnly") ) )
4018                         {
4019                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4020                         } else if ( !strncasecmp( val, "refreshAndPersist",
4021                                                 STRLENOF("refreshAndPersist") ) )
4022                         {
4023                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4024                                 si->si_interval = 60;
4025                         } else {
4026                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4027                                         "Error: parse_syncrepl_line: "
4028                                         "unknown sync type \"%s\"", val);
4029                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4030                                 return -1;
4031                         }
4032                         si->si_got |= GOT_TYPE;
4033                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4034                                         STRLENOF( INTERVALSTR "=" ) ) )
4035                 {
4036                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4037                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4038                                 si->si_interval = 0;
4039                         } else if ( strchr( val, ':' ) != NULL ) {
4040                                 char *next, *ptr = val;
4041                                 int dd, hh, mm, ss;
4042
4043                                 dd = strtol( ptr, &next, 10 );
4044                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4045                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4046                                                 "Error: parse_syncrepl_line: "
4047                                                 "invalid interval \"%s\", unable to parse days", val );
4048                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4049                                         return -1;
4050                                 }
4051                                 ptr = next + 1;
4052                                 hh = strtol( ptr, &next, 10 );
4053                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4054                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4055                                                 "Error: parse_syncrepl_line: "
4056                                                 "invalid interval \"%s\", unable to parse hours", val );
4057                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4058                                         return -1;
4059                                 }
4060                                 ptr = next + 1;
4061                                 mm = strtol( ptr, &next, 10 );
4062                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4063                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4064                                                 "Error: parse_syncrepl_line: "
4065                                                 "invalid interval \"%s\", unable to parse minutes", val );
4066                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4067                                         return -1;
4068                                 }
4069                                 ptr = next + 1;
4070                                 ss = strtol( ptr, &next, 10 );
4071                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4072                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4073                                                 "Error: parse_syncrepl_line: "
4074                                                 "invalid interval \"%s\", unable to parse seconds", val );
4075                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4076                                         return -1;
4077                                 }
4078                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4079                         } else {
4080                                 unsigned long   t;
4081
4082                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4083                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4084                                                 "Error: parse_syncrepl_line: "
4085                                                 "invalid interval \"%s\"", val );
4086                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4087                                         return -1;
4088                                 }
4089                                 si->si_interval = (time_t)t;
4090                         }
4091                         if ( si->si_interval < 0 ) {
4092                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4093                                         "Error: parse_syncrepl_line: "
4094                                         "invalid interval \"%ld\"",
4095                                         (long) si->si_interval);
4096                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4097                                 return -1;
4098                         }
4099                         si->si_got |= GOT_INTERVAL;
4100                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4101                                         STRLENOF( RETRYSTR "=" ) ) )
4102                 {
4103                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4104                                 return 1;
4105                         }
4106                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4107                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4108                 {
4109                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4110                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4111                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4112                         {
4113                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4114                                         "invalid manageDSAit value \"%s\".\n",
4115                                         val );
4116                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4117                                 return 1;
4118                         }
4119                         si->si_got |= GOT_MANAGEDSAIT;
4120                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4121                                         STRLENOF( SLIMITSTR "=") ) )
4122                 {
4123                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4124                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4125                                 si->si_slimit = 0;
4126
4127                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4128                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4129                                         "invalid size limit value \"%s\".\n",
4130                                         val );
4131                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4132                                 return 1;
4133                         }
4134                         si->si_got |= GOT_SLIMIT;
4135                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4136                                         STRLENOF( TLIMITSTR "=" ) ) )
4137                 {
4138                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4139                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4140                                 si->si_tlimit = 0;
4141
4142                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4143                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4144                                         "invalid time limit value \"%s\".\n",
4145                                         val );
4146                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4147                                 return 1;
4148                         }
4149                         si->si_got |= GOT_TLIMIT;
4150                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4151                                         STRLENOF( SYNCDATASTR "=" ) ) )
4152                 {
4153                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4154                         si->si_syncdata = verb_to_mask( val, datamodes );
4155                         si->si_got |= GOT_SYNCDATA;
4156                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4157                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4158                                 "Error: parse_syncrepl_line: "
4159                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4160                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4161                         return -1;
4162                 }
4163                 si->si_got |= GOT_BINDCONF;
4164         }
4165
4166         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4167                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4168                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4169                         si->si_got & GOT_RID ? "" : " "IDSTR,
4170                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4171                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4172                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4173                 return -1;
4174         }
4175
4176         if ( !( si->si_got & GOT_RETRY ) ) {
4177                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4178                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4179                 if ( si->si_retryinterval == NULL ) {
4180                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4181                                 return 1;
4182                         }
4183                 }
4184         }
4185
4186         return 0;
4187 }
4188
4189 static int
4190 add_syncrepl(
4191         ConfigArgs *c )
4192 {
4193         syncinfo_t *si;
4194         int     rc = 0;
4195
4196         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4197                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4198                         "operations required for syncrepl", c->be->be_type );
4199                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4200                 return 1;
4201         }
4202         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4203                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4204                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4205                 return 1;
4206         }
4207         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4208
4209         if ( si == NULL ) {
4210                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4211                 return 1;
4212         }
4213
4214         si->si_bindconf.sb_tls = SB_TLS_OFF;
4215         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4216         si->si_schemachecking = 0;
4217         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4218                 &si->si_filterstr );
4219         si->si_base.bv_val = NULL;
4220         si->si_scope = LDAP_SCOPE_SUBTREE;
4221         si->si_attrsonly = 0;
4222         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4223         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4224         si->si_attrs = NULL;
4225         si->si_allattrs = 0;
4226         si->si_allopattrs = 0;
4227         si->si_exattrs = NULL;
4228         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4229         si->si_interval = 86400;
4230         si->si_retryinterval = NULL;
4231         si->si_retrynum_init = NULL;
4232         si->si_retrynum = NULL;
4233         si->si_manageDSAit = 0;
4234         si->si_tlimit = 0;
4235         si->si_slimit = 0;
4236
4237         si->si_presentlist = NULL;
4238         LDAP_LIST_INIT( &si->si_nonpresentlist );
4239         ldap_pvt_thread_mutex_init( &si->si_mutex );
4240
4241         rc = parse_syncrepl_line( c, si );
4242
4243         if ( rc == 0 ) {
4244                 /* Must be LDAPv3 because we need controls */
4245                 switch ( si->si_bindconf.sb_version ) {
4246                 case 0:
4247                         /* not explicitly set */
4248                         si->si_bindconf.sb_version = LDAP_VERSION3;
4249                         break;
4250                 case 3:
4251                         /* explicitly set */
4252                         break;
4253                 default:
4254                         Debug( LDAP_DEBUG_ANY,
4255                                 "version %d incompatible with syncrepl\n",
4256                                 si->si_bindconf.sb_version, 0, 0 );
4257                         syncinfo_free( si, 0 );
4258                         return 1;
4259                 }
4260
4261                 si->si_be = c->be;
4262                 if ( slapMode & SLAP_SERVER_MODE ) {
4263                         Listener **l = slapd_get_listeners();
4264                         int isMe = 0;
4265
4266                         /* check if URL points to current server. If so, ignore
4267                          * this configuration. We require an exact match. Just
4268                          * in case they really want to do this, they can vary
4269                          * the case of the URL to allow it.
4270                          */
4271                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4272                                 int i;
4273                                 for ( i=0; l[i]; i++ ) {
4274                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4275                                                 isMe = 1;
4276                                                 break;
4277                                         }
4278                                 }
4279                         }
4280
4281                         if ( !isMe ) {
4282                                 init_syncrepl( si );
4283                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4284                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4285                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4286                                         si->si_ridtxt );
4287                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4288                                 if ( si->si_re )
4289                                         rc = config_sync_shadow( c ) ? -1 : 0;
4290                                 else
4291                                         rc = -1;
4292                         }
4293                 } else {
4294                         /* mirrormode still needs to see this flag in tool mode */
4295                         rc = config_sync_shadow( c ) ? -1 : 0;
4296                 }
4297         }
4298
4299 #ifdef HAVE_TLS
4300         /* Use main slapd defaults */
4301         bindconf_tls_defaults( &si->si_bindconf );
4302 #endif
4303         if ( rc < 0 ) {
4304                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4305                 syncinfo_free( si, 0 );
4306                 return 1;
4307         } else {
4308                 Debug( LDAP_DEBUG_CONFIG,
4309                         "Config: ** successfully added syncrepl \"%s\"\n",
4310                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4311                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4312                 if ( c->be->be_syncinfo ) {
4313                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4314                 } else {
4315                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4316                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4317                 }
4318                 si->si_next = c->be->be_syncinfo;
4319                 c->be->be_syncinfo = si;
4320                 return 0;
4321         }
4322 }
4323
4324 static void
4325 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4326 {
4327         struct berval bc, uri;
4328         char buf[BUFSIZ*2], *ptr;
4329         ber_len_t len;
4330         int i;
4331 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4332
4333         BER_BVZERO( bv );
4334
4335         /* temporarily inhibit bindconf from printing URI */
4336         uri = si->si_bindconf.sb_uri;
4337         BER_BVZERO( &si->si_bindconf.sb_uri );
4338         si->si_bindconf.sb_version = 0;
4339         bindconf_unparse( &si->si_bindconf, &bc );
4340         si->si_bindconf.sb_uri = uri;
4341         si->si_bindconf.sb_version = LDAP_VERSION3;
4342
4343         ptr = buf;
4344         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4345         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4346                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4347         if ( len >= sizeof( buf ) ) return;
4348         ptr += len;
4349         if ( !BER_BVISNULL( &bc ) ) {
4350                 if ( WHATSLEFT <= bc.bv_len ) {
4351                         free( bc.bv_val );
4352                         return;
4353                 }
4354                 ptr = lutil_strcopy( ptr, bc.bv_val );
4355                 free( bc.bv_val );
4356         }
4357         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4358                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4359                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4360                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4361                 *ptr++ = '"';
4362         }
4363         if ( !BER_BVISNULL( &si->si_base ) ) {
4364                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4365                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4366                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4367                 *ptr++ = '"';
4368         }
4369         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4370                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4371                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4372                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4373                 *ptr++ = '"';
4374         }
4375         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4376                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4377                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4378                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4379                 *ptr++ = '"';
4380         }
4381         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4382                 if ( si->si_scope == scopes[i].val ) {
4383                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4384                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4385                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4386                         break;
4387                 }
4388         }
4389         if ( si->si_attrsonly ) {
4390                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4391                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4392         }
4393         if ( si->si_anfile ) {
4394                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4395                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4396                 ptr = lutil_strcopy( ptr, si->si_anfile );
4397                 *ptr++ = '"';
4398         } else if ( si->si_allattrs || si->si_allopattrs ||
4399                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4400         {
4401                 char *old;
4402
4403                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4404                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4405                 old = ptr;
4406                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4407                 if ( ptr == NULL ) return;
4408                 if ( si->si_allattrs ) {
4409                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4410                         if ( old != ptr ) *ptr++ = ',';
4411                         *ptr++ = '*';
4412                 }
4413                 if ( si->si_allopattrs ) {
4414                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4415                         if ( old != ptr ) *ptr++ = ',';
4416                         *ptr++ = '+';
4417                 }
4418                 *ptr++ = '"';
4419         }
4420         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4421                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4422                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4423                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4424                 if ( ptr == NULL ) return;
4425         }
4426         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4427         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4428         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4429
4430         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4431         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4432         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4433                 "refreshAndPersist" : "refreshOnly" );
4434
4435         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4436                 int dd, hh, mm, ss;
4437
4438                 dd = si->si_interval;
4439                 ss = dd % 60;
4440                 dd /= 60;
4441                 mm = dd % 60;
4442                 dd /= 60;
4443                 hh = dd % 24;
4444                 dd /= 24;
4445                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4446                         INTERVALSTR, dd, hh, mm, ss );
4447                 if ( len >= WHATSLEFT ) return;
4448                 ptr += len;
4449         }
4450
4451         if ( si->si_got & GOT_RETRY ) {
4452                 const char *space = "";
4453                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4454                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4455                 for (i=0; si->si_retryinterval[i]; i++) {
4456                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4457                                 (long) si->si_retryinterval[i] );
4458                         space = " ";
4459                         if ( WHATSLEFT - 1 <= len ) return;
4460                         ptr += len;
4461                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4462                                 *ptr++ = '+';
4463                         else {
4464                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4465                                 if ( WHATSLEFT <= len ) return;
4466                                 ptr += len;
4467                         }
4468                 }
4469                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4470                 *ptr++ = '"';
4471         } else {
4472                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4473         }
4474
4475         if ( si->si_slimit ) {
4476                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4477                 if ( WHATSLEFT <= len ) return;
4478                 ptr += len;
4479         }
4480
4481         if ( si->si_tlimit ) {
4482                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4483                 if ( WHATSLEFT <= len ) return;
4484                 ptr += len;
4485         }
4486
4487         if ( si->si_syncdata ) {
4488                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4489                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4490                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4491                         ptr = lutil_strcopy( ptr, bc.bv_val );
4492                 }
4493         }
4494         bc.bv_len = ptr - buf;
4495         bc.bv_val = buf;
4496         ber_dupbv( bv, &bc );
4497 }
4498
4499 int
4500 syncrepl_config( ConfigArgs *c )
4501 {
4502         if (c->op == SLAP_CONFIG_EMIT) {
4503                 if ( c->be->be_syncinfo ) {
4504                         struct berval bv;
4505                         syncinfo_t *si;
4506
4507                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4508                                 syncrepl_unparse( si, &bv );
4509                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4510                         }
4511                         return 0;
4512                 }
4513                 return 1;
4514         } else if ( c->op == LDAP_MOD_DELETE ) {
4515                 cookie_state *cs = NULL;
4516                 if ( c->be->be_syncinfo ) {
4517                         syncinfo_t *si, **sip;
4518                         int i;
4519
4520                         cs = c->be->be_syncinfo->si_cookieState;
4521                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4522                                 si = *sip;
4523                                 if ( c->valx == -1 || i == c->valx ) {
4524                                         int isrunning = 0;
4525                                         *sip = si->si_next;
4526                                         /* If the task is currently active, we have to leave
4527                                          * it running. It will exit on its own. This will only
4528                                          * happen when running on the cn=config DB.
4529                                          */
4530                                         if ( si->si_re ) {
4531                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4532                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4533                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4534                                         }
4535                                         if ( si->si_re && isrunning ) {
4536                                                 si->si_ctype = 0;
4537                                         } else {
4538                                                 syncinfo_free( si, 0 );
4539                                         }
4540                                         if ( i == c->valx )
4541                                                 break;
4542                                 } else {
4543                                         sip = &si->si_next;
4544                                 }
4545                         }
4546                 }
4547                 if ( !c->be->be_syncinfo ) {
4548                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4549                         if ( cs ) {
4550                                 ber_bvarray_free( cs->cs_vals );
4551                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4552                                 ch_free( cs );
4553                         }
4554                 }
4555                 return 0;
4556         }
4557         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4558                 Debug(LDAP_DEBUG_ANY, "%s: "
4559                         "syncrepl: database already shadowed.\n",
4560                         c->log, 0, 0);
4561                 return(1);
4562         } else {
4563                 return add_syncrepl( c );
4564         }
4565 }