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[3], *ctrls[4];
 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         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 421         BER_BVZERO( &c[1].ldctl_value );
 422         c[1].ldctl_iscritical = 1;
 423         ctrls[1] = &c[1];
 424
 425         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 426                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 427                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 428                 c[2].ldctl_iscritical = 1;
 429                 ctrls[2] = &c[2];
 430                 ctrls[3] = NULL;
 431         } else {
 432                 ctrls[2] = NULL;
 433         }
 434
 435         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 436                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 437         ber_free_buf( ber );
 438         return rc;
 439 }
 440
 441 static int
 442 check_syncprov(
 443         Operation *op,
 444         syncinfo_t *si )
 445 {
 446         AttributeName at[2];
 447         Attribute a = {0};
 448         Entry e = {0};
 449         SlapReply rs = {0};
 450         int i, j, changed = 0;
 451
 452         /* Look for contextCSN from syncprov overlay. If
 453          * there's no overlay, this will be a no-op. That means
 454          * this is a pure consumer, so local changes will not be
 455          * allowed, and all changes will already be reflected in
 456          * the cookieState.
 457          */
 458         a.a_desc = slap_schema.si_ad_contextCSN;
 459         e.e_attrs = &a;
 460         e.e_name = op->o_bd->be_suffix[0];
 461         e.e_nname = op->o_bd->be_nsuffix[0];
 462         at[0].an_name = a.a_desc->ad_cname;
 463         at[0].an_desc = a.a_desc;
 464         BER_BVZERO( &at[1].an_name );
 465         rs.sr_entry = &e;
 466         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 467         rs.sr_attrs = at;
 468         op->o_req_dn = e.e_name;
 469         op->o_req_ndn = e.e_nname;
 470
 471         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 472         i = backend_operational( op, &rs );
 473         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 474                 int num = a.a_numvals;
 475                 /* check for differences */
 476                 if ( num != si->si_cookieState->cs_num ) {
 477                         changed = 1;
 478                 } else {
 479                         for ( i=0; i<num; i++ ) {
 480                                 if ( ber_bvcmp( &a.a_nvals[i],
 481                                         &si->si_cookieState->cs_vals[i] )) {
 482                                         changed = 1;
 483                                         break;
 484                                 }
 485                         }
 486                 }
 487                 if ( changed ) {
 488                         ber_bvarray_free( si->si_cookieState->cs_vals );
 489                         ch_free( si->si_cookieState->cs_sids );
 490                         si->si_cookieState->cs_num = num;
 491                         si->si_cookieState->cs_vals = a.a_nvals;
 492                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 493                                 num, NULL );
 494                         si->si_cookieState->cs_age++;
 495                 } else {
 496                         ber_bvarray_free( a.a_nvals );
 497                 }
 498                 ber_bvarray_free( a.a_vals );
 499         }
 500         /* See if the cookieState has changed due to anything outside
 501          * this particular consumer. That includes other consumers in
 502          * the same context, or local changes detected above.
 503          */
 504         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 505                 si->si_cookieState->cs_age ) {
 506                 if ( !si->si_syncCookie.numcsns ) {
 507                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 508                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 509                                 si->si_cookieState->cs_vals, NULL );
 510                         changed = 1;
 511                 } else {
 512                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 513                                 /* bogus, just dup everything */
 514                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 515                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 516                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 517                                                 si->si_cookieState->cs_vals, NULL );
 518                                         changed = 1;
 519                                         break;
 520                                 }
 521                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 522                                         if ( si->si_syncCookie.sids[i] !=
 523                                                 si->si_cookieState->cs_sids[j] )
 524                                                 continue;
 525                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 526                                                 &si->si_cookieState->cs_vals[j] ))
 527                                                 break;
 528                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 529                                                 &si->si_cookieState->cs_vals[j] );
 530                                         changed = 1;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535         }
 536         if ( changed ) {
 537                 si->si_cookieAge = si->si_cookieState->cs_age;
 538                 ch_free( si->si_syncCookie.octet_str.bv_val );
 539                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 540                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 541                         si->si_syncCookie.sid );
 542         }
 543         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 544         return changed;
 545 }
 546
 547 static int
 548 do_syncrep1(
 549         Operation *op,
 550         syncinfo_t *si )
 551 {
 552         int     rc;
 553         int cmdline_cookie_found = 0;
 554
 555         struct sync_cookie      *sc = NULL;
 556 #ifdef HAVE_TLS
 557         void    *ssl;
 558 #endif
 559
 560         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 561         if ( rc != LDAP_SUCCESS ) {
 562                 goto done;
 563         }
 564         op->o_protocol = LDAP_VERSION3;
 565
 566         /* Set SSF to strongest of TLS, SASL SSFs */
 567         op->o_sasl_ssf = 0;
 568         op->o_tls_ssf = 0;
 569         op->o_transport_ssf = 0;
 570 #ifdef HAVE_TLS
 571         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 572                 == LDAP_SUCCESS && ssl != NULL )
 573         {
 574                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 575         }
 576 #endif /* HAVE_TLS */
 577         {
 578                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 579                                                   to use sasl_ssf_t but currently uses ber_len_t */
 580                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 581                 op->o_sasl_ssf = ssf;
 582         }
 583         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 584                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 585
 586         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 587
 588         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 589         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 590
 591         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 592
 593         si->si_syncCookie.rid = si->si_rid;
 594
 595         /* whenever there are multiple data sources possible, advertise sid */
 596         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 597                 slap_serverID : -1;
 598
 599         /* We've just started up, or the remote server hasn't sent us
 600          * any meaningful state.
 601          */
 602         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 603                 int i;
 604
 605                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 606                         if ( si->si_rid == sc->rid ) {
 607                                 cmdline_cookie_found = 1;
 608                                 break;
 609                         }
 610                 }
 611
 612                 if ( cmdline_cookie_found ) {
 613                         /* cookie is supplied in the command line */
 614
 615                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 616
 617                         /* ctxcsn wasn't parsed yet, do it now */
 618                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 619                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 620                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 621                         slap_sync_cookie_free( sc, 1 );
 622                 } else {
 623                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 624                         if ( !si->si_cookieState->cs_num ) {
 625                                 /* get contextCSN shadow replica from database */
 626                                 BerVarray csn = NULL;
 627                                 void *ctx = op->o_tmpmemctx;
 628
 629                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 630                                 op->o_req_dn = op->o_req_ndn;
 631
 632                                 /* try to read stored contextCSN */
 633                                 op->o_tmpmemctx = NULL;
 634                                 backend_attribute( op, NULL, &op->o_req_ndn,
 635                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 636                                 op->o_tmpmemctx = ctx;
 637                                 if ( csn ) {
 638                                         si->si_cookieState->cs_vals = csn;
 639                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 640                                         si->si_cookieState->cs_num = i;
 641                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 642                                 }
 643                         }
 644                         if ( si->si_cookieState->cs_num ) {
 645                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 646                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 647                                         si->si_cookieState->cs_vals, NULL )) {
 648                                         rc = LDAP_NO_MEMORY;
 649                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 650                                         goto done;
 651                                 }
 652                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 653                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 654                                         sizeof(int) );
 655                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 656                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 657                         }
 658                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 659                 }
 660
 661                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 662                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 663                         si->si_syncCookie.sid );
 664         } else {
 665                 /* Look for contextCSN from syncprov overlay. */
 666                 check_syncprov( op, si );
 667         }
 668
 669         si->si_refreshDone = 0;
 670
 671         rc = ldap_sync_search( si, op->o_tmpmemctx );
 672
 673         if( rc != LDAP_SUCCESS ) {
 674                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 675                         "ldap_search_ext: %s (%d)\n",
 676                         si->si_ridtxt, ldap_err2string( rc ), rc );
 677         }
 678
 679 done:
 680         if ( rc ) {
 681                 if ( si->si_ld ) {
 682                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 683                         si->si_ld = NULL;
 684                 }
 685         }
 686
 687         return rc;
 688 }
 689
 690 static int
 691 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 692 {
 693         int i, j, match = 0;
 694         const char *text;
 695
 696         *which = 0;
 697
 698         if ( sc1->numcsns < sc2->numcsns ) {
 699                 *which = sc1->numcsns;
 700                 return -1;
 701         }
 702
 703         for (j=0; j<sc2->numcsns; j++) {
 704                 for (i=0; i<sc1->numcsns; i++) {
 705                         if ( sc1->sids[i] != sc2->sids[j] )
 706                                 continue;
 707                         value_match( &match, slap_schema.si_ad_entryCSN,
 708                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 709                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 710                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 711                         if ( match < 0 ) {
 712                                 *which = j;
 713                                 return match;
 714                         }
 715                         break;
 716                 }
 717                 if ( i == sc1->numcsns ) {
 718                         /* sc2 has a sid sc1 lacks */
 719                         *which = j;
 720                         return -1;
 721                 }
 722         }
 723         return match;
 724 }
 725
 726 #define SYNC_PAUSED     -3
 727
 728 static int
 729 do_syncrep2(
 730         Operation *op,
 731         syncinfo_t *si )
 732 {
 733         LDAPControl     **rctrls = NULL;
 734
 735         BerElementBuffer berbuf;
 736         BerElement      *ber = (BerElement *)&berbuf;
 737
 738         LDAPMessage     *msg = NULL;
 739
 740         char            *retoid = NULL;
 741         struct berval   *retdata = NULL;
 742
 743         Entry           *entry = NULL;
 744
 745         int             syncstate;
 746         struct berval   syncUUID = BER_BVNULL;
 747         struct sync_cookie      syncCookie = { NULL };
 748         struct sync_cookie      syncCookie_req = { NULL };
 749         struct berval           cookie = BER_BVNULL;
 750
 751         int             rc,
 752                         err = LDAP_SUCCESS;
 753         ber_len_t       len;
 754
 755         struct berval   *psub;
 756         Modifications   *modlist = NULL;
 757
 758         int                             match, m;
 759
 760         struct timeval *tout_p = NULL;
 761         struct timeval tout = { 0, 0 };
 762
 763         int             refreshDeletes = 0;
 764         BerVarray syncUUIDs = NULL;
 765         ber_tag_t si_tag;
 766
 767         if ( slapd_shutdown ) {
 768                 rc = -2;
 769                 goto done;
 770         }
 771
 772         ber_init2( ber, NULL, LBER_USE_DER );
 773         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 774
 775         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 776
 777         psub = &si->si_be->be_nsuffix[0];
 778
 779         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 780
 781         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 782                 tout_p = &tout;
 783         } else {
 784                 tout_p = NULL;
 785         }
 786
 787         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 788                 tout_p, &msg ) ) > 0 )
 789         {
 790                 LDAPControl     *rctrlp = NULL;
 791
 792                 if ( slapd_shutdown ) {
 793                         rc = -2;
 794                         goto done;
 795                 }
 796                 switch( ldap_msgtype( msg ) ) {
 797                 case LDAP_RES_SEARCH_ENTRY:
 798                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 799                         /* we can't work without the control */
 800                         if ( rctrls ) {
 801                                 LDAPControl **next;
 802                                 /* NOTE: make sure we use the right one;
 803                                  * a better approach would be to run thru
 804                                  * the whole list and take care of all */
 805                                 /* NOTE: since we issue the search request,
 806                                  * we should know what controls to expect,
 807                                  * and there should be none apart from the
 808                                  * sync-related control */
 809                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 810                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 811                                 {
 812                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 813                                                 "got search entry with multiple "
 814                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 815                                         ldap_controls_free( rctrls );
 816                                         rc = -1;
 817                                         goto done;
 818                                 }
 819                         }
 820                         if ( rctrlp == NULL ) {
 821                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 822                                         "got search entry without "
 823                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 828                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 829                         /* FIXME: what if syncUUID is NULL or empty?
 830                          * (happens with back-sql...) */
 831                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 832                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 833                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 834                                         si->si_ridtxt,
 835                                         syncrepl_state2str( syncstate ), 0 );
 836                                 ldap_controls_free( rctrls );
 837                                 rc = -1;
 838                                 goto done;
 839                         }
 840                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 841                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 842
 843                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 844                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 845
 846                                 if ( !BER_BVISNULL( &cookie ) ) {
 847                                         ch_free( syncCookie.octet_str.bv_val );
 848                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 849                                 }
 850                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 851                                 {
 852                                         slap_parse_sync_cookie( &syncCookie, NULL );
 853                                         if ( syncCookie.ctxcsn ) {
 854                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 855                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 856                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 857                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 858                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 859                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 860                                                                 ldap_controls_free( rctrls );
 861                                                                 rc = 0;
 862                                                                 goto done;
 863                                                         }
 864                                                 }
 865                                         }
 866                                 }
 867                         }
 868                         rc = 0;
 869                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 870                                 modlist = NULL;
 871                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 872                                         syncCookie.ctxcsn )
 873                                 {
 874                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 875                                 } else switch ( rc ) {
 876                                         case LDAP_ALREADY_EXISTS:
 877                                         case LDAP_NO_SUCH_OBJECT:
 878                                         case LDAP_NO_SUCH_ATTRIBUTE:
 879                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 880                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 881                                                 si->si_logstate = SYNCLOG_FALLBACK;
 882                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 883                                                 break;
 884                                         default:
 885                                                 break;
 886                                 }
 887                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 888                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 889                         {
 890                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 891                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 892                                         syncCookie.ctxcsn )
 893                                 {
 894                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 895                                 }
 896                         }
 897                         ldap_controls_free( rctrls );
 898                         if ( modlist ) {
 899                                 slap_mods_free( modlist, 1 );
 900                         }
 901                         if ( rc )
 902                                 goto done;
 903                         break;
 904
 905                 case LDAP_RES_SEARCH_REFERENCE:
 906                         Debug( LDAP_DEBUG_ANY,
 907                                 "do_syncrep2: %s reference received error\n",
 908                                 si->si_ridtxt, 0, 0 );
 909                         break;
 910
 911                 case LDAP_RES_SEARCH_RESULT:
 912                         Debug( LDAP_DEBUG_SYNC,
 913                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 914                                 si->si_ridtxt, 0, 0 );
 915                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 916                                 &rctrls, 0 );
 917 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 918                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 919                                 /* map old result code to registered code */
 920                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 921                         }
 922 #endif
 923                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 924                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 925                                         si->si_logstate = SYNCLOG_FALLBACK;
 926                                 }
 927                                 rc = err;
 928                                 goto done;
 929                         }
 930                         if ( err ) {
 931                                 Debug( LDAP_DEBUG_ANY,
 932                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 933                                         si->si_ridtxt, err, ldap_err2string( err ) );
 934                         }
 935                         if ( rctrls ) {
 936                                 LDAPControl **next;
 937                                 /* NOTE: make sure we use the right one;
 938                                  * a better approach would be to run thru
 939                                  * the whole list and take care of all */
 940                                 /* NOTE: since we issue the search request,
 941                                  * we should know what controls to expect,
 942                                  * and there should be none apart from the
 943                                  * sync-related control */
 944                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 945                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 946                                 {
 947                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 948                                                 "got search result with multiple "
 949                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 950                                         ldap_controls_free( rctrls );
 951                                         rc = -1;
 952                                         goto done;
 953                                 }
 954                         }
 955                         if ( rctrlp ) {
 956                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 957
 958                                 ber_scanf( ber, "{" /*"}"*/);
 959                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 960                                         ber_scanf( ber, "m", &cookie );
 961
 962                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 963                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 964
 965                                         if ( !BER_BVISNULL( &cookie ) ) {
 966                                                 ch_free( syncCookie.octet_str.bv_val );
 967                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 968                                         }
 969                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 970                                         {
 971                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 972                                         }
 973                                 }
 974                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 975                                 {
 976                                         ber_scanf( ber, "b", &refreshDeletes );
 977                                 }
 978                                 ber_scanf( ber, /*"{"*/ "}" );
 979                         }
 980                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 981                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 982                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 983                         }
 984                         if ( !syncCookie.ctxcsn ) {
 985                                 match = 1;
 986                         } else if ( !syncCookie_req.ctxcsn ) {
 987                                 match = -1;
 988                                 m = 0;
 989                         } else {
 990                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 991                         }
 992                         if ( rctrls ) {
 993                                 ldap_controls_free( rctrls );
 994                         }
 995                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 996                                 /* FIXME : different error behaviors according to
 997                                  *      1) err code : LDAP_BUSY ...
 998                                  *      2) on err policy : stop service, stop sync, retry
 999                                  */
1000                                 if ( refreshDeletes == 0 && match < 0 &&
1001                                         err == LDAP_SUCCESS &&
1002                                         syncCookie_req.numcsns == syncCookie.numcsns )
1003                                 {
1004                                         syncrepl_del_nonpresent( op, si, NULL,
1005                                                 &syncCookie, m );
1006                                 } else {
1007                                         avl_free( si->si_presentlist, ch_free );
1008                                         si->si_presentlist = NULL;
1009                                 }
1010                         }
1011                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1012                         {
1013                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1014                         }
1015                         if ( err == LDAP_SUCCESS
1016                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1017                                 si->si_logstate = SYNCLOG_LOGGING;
1018                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1019                         } else {
1020                                 rc = -2;
1021                         }
1022                         goto done;
1023                         break;
1024
1025                 case LDAP_RES_INTERMEDIATE:
1026                         rc = ldap_parse_intermediate( si->si_ld, msg,
1027                                 &retoid, &retdata, NULL, 0 );
1028                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1029                                 ber_init2( ber, retdata, LBER_USE_DER );
1030
1031                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1032                                 ber_tag_t tag;
1033                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1034                                         Debug( LDAP_DEBUG_SYNC,
1035                                                 "do_syncrep2: %s %s - %s\n",
1036                                                 si->si_ridtxt,
1037                                                 "LDAP_RES_INTERMEDIATE",
1038                                                 "NEW_COOKIE" );
1039                                         ber_scanf( ber, "tm", &tag, &cookie );
1040                                         break;
1041                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1042                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1043                                         Debug( LDAP_DEBUG_SYNC,
1044                                                 "do_syncrep2: %s %s - %s\n",
1045                                                 si->si_ridtxt,
1046                                                 "LDAP_RES_INTERMEDIATE",
1047                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1048                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1049                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1050                                                 si->si_refreshDelete = 1;
1051                                         } else {
1052                                                 si->si_refreshPresent = 1;
1053                                         }
1054                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1055                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1056                                         {
1057                                                 ber_scanf( ber, "m", &cookie );
1058
1059                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1060                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1061
1062                                                 if ( !BER_BVISNULL( &cookie ) ) {
1063                                                         ch_free( syncCookie.octet_str.bv_val );
1064                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1065                                                 }
1066                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1067                                                 {
1068                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1069                                                 }
1070                                         }
1071                                         /* Defaults to TRUE */
1072                                         if ( ber_peek_tag( ber, &len ) ==
1073                                                 LDAP_TAG_REFRESHDONE )
1074                                         {
1075                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1076                                         } else
1077                                         {
1078                                                 si->si_refreshDone = 1;
1079                                         }
1080                                         ber_scanf( ber, /*"{"*/ "}" );
1081                                         break;
1082                                 case LDAP_TAG_SYNC_ID_SET:
1083                                         Debug( LDAP_DEBUG_SYNC,
1084                                                 "do_syncrep2: %s %s - %s\n",
1085                                                 si->si_ridtxt,
1086                                                 "LDAP_RES_INTERMEDIATE",
1087                                                 "SYNC_ID_SET" );
1088                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1089                                         if ( ber_peek_tag( ber, &len ) ==
1090                                                 LDAP_TAG_SYNC_COOKIE )
1091                                         {
1092                                                 ber_scanf( ber, "m", &cookie );
1093
1094                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1095                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1096
1097                                                 if ( !BER_BVISNULL( &cookie ) ) {
1098                                                         ch_free( syncCookie.octet_str.bv_val );
1099                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1100                                                 }
1101                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1102                                                 {
1103                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1104                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1105                                                 }
1106                                         }
1107                                         if ( ber_peek_tag( ber, &len ) ==
1108                                                 LDAP_TAG_REFRESHDELETES )
1109                                         {
1110                                                 ber_scanf( ber, "b", &refreshDeletes );
1111                                         }
1112                                         ber_scanf( ber, "[W]", &syncUUIDs );
1113                                         ber_scanf( ber, /*"{"*/ "}" );
1114                                         if ( refreshDeletes ) {
1115                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1116                                                         &syncCookie, m );
1117                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1118                                         } else {
1119                                                 int i;
1120                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1121                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1122                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1123                                                 }
1124                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1125                                         }
1126                                         slap_sync_cookie_free( &syncCookie, 0 );
1127                                         break;
1128                                 default:
1129                                         Debug( LDAP_DEBUG_ANY,
1130                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1131                                                 si->si_ridtxt, (long) si_tag, 0 );
1132                                         ldap_memfree( retoid );
1133                                         ber_bvfree( retdata );
1134                                         continue;
1135                                 }
1136
1137                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1138                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1139                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1140                                 }
1141                                 if ( !syncCookie.ctxcsn ) {
1142                                         match = 1;
1143                                 } else if ( !syncCookie_req.ctxcsn ) {
1144                                         match = -1;
1145                                         m = 0;
1146                                 } else {
1147                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1148                                 }
1149
1150                                 if ( match < 0 ) {
1151                                         if ( si->si_refreshPresent == 1 &&
1152                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1153                                                 syncrepl_del_nonpresent( op, si, NULL,
1154                                                         &syncCookie, m );
1155                                         }
1156
1157                                         if ( syncCookie.ctxcsn )
1158                                         {
1159                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1160                                         }
1161                                 }
1162
1163                                 ldap_memfree( retoid );
1164                                 ber_bvfree( retdata );
1165                                 break;
1166
1167                         } else {
1168                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1169                                         "unknown intermediate response (%d)\n",
1170                                         si->si_ridtxt, rc, 0 );
1171                                 ldap_memfree( retoid );
1172                                 ber_bvfree( retdata );
1173                                 break;
1174                         }
1175                         break;
1176
1177                 default:
1178                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1179                                 "unknown message (0x%02lx)\n",
1180                                 si->si_ridtxt,
1181                                 (unsigned long)ldap_msgtype( msg ), 0 );
1182                         break;
1183
1184                 }
1185                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1186                         slap_sync_cookie_free( &syncCookie_req, 0 );
1187                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1188                         slap_sync_cookie_free( &syncCookie, 0 );
1189                 }
1190                 ldap_msgfree( msg );
1191                 msg = NULL;
1192                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1193                         slap_sync_cookie_free( &syncCookie, 0 );
1194                         slap_sync_cookie_free( &syncCookie_req, 0 );
1195                         return SYNC_PAUSED;
1196                 }
1197         }
1198
1199         if ( rc == -1 ) {
1200                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1201                 err = rc;
1202         }
1203
1204 done:
1205         if ( err != LDAP_SUCCESS ) {
1206                 Debug( LDAP_DEBUG_ANY,
1207                         "do_syncrep2: %s (%d) %s\n",
1208                         si->si_ridtxt, err, ldap_err2string( err ) );
1209         }
1210
1211         slap_sync_cookie_free( &syncCookie, 0 );
1212         slap_sync_cookie_free( &syncCookie_req, 0 );
1213
1214         if ( msg ) ldap_msgfree( msg );
1215
1216         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1217                 if ( si->si_conn ) {
1218                         connection_client_stop( si->si_conn );
1219                         si->si_conn = NULL;
1220                 }
1221                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1222                 si->si_ld = NULL;
1223         }
1224
1225         return rc;
1226 }
1227
1228 static void *
1229 do_syncrepl(
1230         void    *ctx,
1231         void    *arg )
1232 {
1233         struct re_s* rtask = arg;
1234         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1235         Connection conn = {0};
1236         OperationBuffer opbuf;
1237         Operation *op;
1238         int rc = LDAP_SUCCESS;
1239         int dostop = 0;
1240         ber_socket_t s;
1241         int i, defer = 1, fail = 0;
1242         Backend *be;
1243
1244         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1245
1246         if ( si == NULL )
1247                 return NULL;
1248
1249         /* There will never be more than one instance active */
1250         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1251
1252         switch( abs( si->si_type ) ) {
1253         case LDAP_SYNC_REFRESH_ONLY:
1254         case LDAP_SYNC_REFRESH_AND_PERSIST:
1255                 break;
1256         default:
1257                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1258                 return NULL;
1259         }
1260
1261         if ( slapd_shutdown ) {
1262                 if ( si->si_ld ) {
1263                         if ( si->si_conn ) {
1264                                 connection_client_stop( si->si_conn );
1265                                 si->si_conn = NULL;
1266                         }
1267                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1268                         si->si_ld = NULL;
1269                 }
1270                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1271                 return NULL;
1272         }
1273
1274         connection_fake_init( &conn, &opbuf, ctx );
1275         op = &opbuf.ob_op;
1276
1277         /* use global malloc for now */
1278         op->o_tmpmemctx = NULL;
1279         op->o_tmpmfuncs = &ch_mfuncs;
1280
1281         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1282         be = si->si_be;
1283
1284         /* Coordinate contextCSN updates with any syncprov overlays
1285          * in use. This may be complicated by the use of the glue
1286          * overlay.
1287          *
1288          * Typically there is a single syncprov mastering the entire
1289          * glued tree. In that case, our contextCSN updates should
1290          * go to the master DB. But if there is no syncprov on the
1291          * master DB, then nothing special is needed here.
1292          *
1293          * Alternatively, there may be individual syncprov overlays
1294          * on each glued branch. In that case, each syncprov only
1295          * knows about changes within its own branch. And so our
1296          * contextCSN updates should only go to the local DB.
1297          */
1298         if ( !si->si_wbe ) {
1299                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1300                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1301                         if ( overlay_is_inst( top_be, "syncprov" ))
1302                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1303                         else
1304                                 si->si_wbe = be;
1305                 } else {
1306                         si->si_wbe = be;
1307                 }
1308         }
1309         if ( !si->si_schemachecking )
1310                 op->o_no_schema_check = 1;
1311
1312         /* Establish session, do search */
1313         if ( !si->si_ld ) {
1314                 si->si_refreshDelete = 0;
1315                 si->si_refreshPresent = 0;
1316
1317                 /* use main DB when retrieving contextCSN */
1318                 op->o_bd = si->si_wbe;
1319                 op->o_dn = op->o_bd->be_rootdn;
1320                 op->o_ndn = op->o_bd->be_rootndn;
1321                 rc = do_syncrep1( op, si );
1322         }
1323
1324 reload:
1325         /* Process results */
1326         if ( rc == LDAP_SUCCESS ) {
1327                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1328
1329                 /* use current DB */
1330                 op->o_bd = be;
1331                 op->o_dn = op->o_bd->be_rootdn;
1332                 op->o_ndn = op->o_bd->be_rootndn;
1333                 rc = do_syncrep2( op, si );
1334                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1335                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1336                         goto reload;
1337                 }
1338
1339                 /* We got deleted while running on cn=config */
1340                 if ( !si->si_ctype ) {
1341                         if ( si->si_conn )
1342                                 dostop = 1;
1343                         rc = -1;
1344                 }
1345
1346                 if ( rc != SYNC_PAUSED ) {
1347                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1348                                 /* If we succeeded, enable the connection for further listening.
1349                                  * If we failed, tear down the connection and reschedule.
1350                                  */
1351                                 if ( rc == LDAP_SUCCESS ) {
1352                                         if ( si->si_conn ) {
1353                                                 connection_client_enable( si->si_conn );
1354                                         } else {
1355                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1356                                         }
1357                                 } else if ( si->si_conn ) {
1358                                         dostop = 1;
1359                                 }
1360                         } else {
1361                                 if ( rc == -2 ) rc = 0;
1362                         }
1363                 }
1364         }
1365
1366         /* At this point, we have 5 cases:
1367          * 1) for any hard failure, give up and remove this task
1368          * 2) for ServerDown, reschedule this task to run later
1369          * 3) for threadpool pause, reschedule to run immediately
1370          * 4) for Refresh and Success, reschedule to run
1371          * 5) for Persist and Success, reschedule to defer
1372          */
1373         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1374
1375         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1376                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1377         }
1378
1379         if ( dostop ) {
1380                 connection_client_stop( si->si_conn );
1381                 si->si_conn = NULL;
1382         }
1383
1384         if ( rc == SYNC_PAUSED ) {
1385                 rtask->interval.tv_sec = 0;
1386                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1387                 rtask->interval.tv_sec = si->si_interval;
1388                 rc = 0;
1389         } else if ( rc == LDAP_SUCCESS ) {
1390                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1391                         defer = 0;
1392                 }
1393                 rtask->interval.tv_sec = si->si_interval;
1394                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1395                 if ( si->si_retrynum ) {
1396                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1397                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1398                         }
1399                         si->si_retrynum[i] = RETRYNUM_TAIL;
1400                 }
1401         } else {
1402                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1403                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1404                                 break;
1405                 }
1406
1407                 if ( !si->si_ctype
1408                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1409                         if ( si->si_re ) {
1410                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1411                                 si->si_re = NULL;
1412                         }
1413                         fail = RETRYNUM_TAIL;
1414                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1415                         if ( si->si_retrynum[i] > 0 )
1416                                 si->si_retrynum[i]--;
1417                         fail = si->si_retrynum[i];
1418                         rtask->interval.tv_sec = si->si_retryinterval[i];
1419                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1420                         slap_wake_listener();
1421                 }
1422         }
1423
1424         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1425         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1426
1427         if ( rc ) {
1428                 if ( fail == RETRYNUM_TAIL ) {
1429                         Debug( LDAP_DEBUG_ANY,
1430                                 "do_syncrepl: %s quitting\n",
1431                                 si->si_ridtxt, 0, 0 );
1432                 } else if ( fail > 0 ) {
1433                         Debug( LDAP_DEBUG_ANY,
1434                                 "do_syncrepl: %s retrying (%d retries left)\n",
1435                                 si->si_ridtxt, fail, 0 );
1436                 } else {
1437                         Debug( LDAP_DEBUG_ANY,
1438                                 "do_syncrepl: %s retrying\n",
1439                                 si->si_ridtxt, 0, 0 );
1440                 }
1441         }
1442
1443         /* Do final delete cleanup */
1444         if ( !si->si_ctype ) {
1445                 cookie_state *cs = si->si_cookieState;
1446                 syncinfo_free( si, ( !be->be_syncinfo ||
1447                         be->be_syncinfo->si_cookieState != cs ));
1448         }
1449         return NULL;
1450 }
1451
1452 static slap_verbmasks modops[] = {
1453         { BER_BVC("add"), LDAP_REQ_ADD },
1454         { BER_BVC("delete"), LDAP_REQ_DELETE },
1455         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1456         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1457         { BER_BVNULL, 0 }
1458 };
1459
1460 static Modifications *
1461 syncrepl_accesslog_mods(
1462         syncinfo_t *si,
1463         struct berval *vals
1464 )
1465 {
1466         char *colon;
1467         const char *text;
1468         AttributeDescription *ad;
1469         struct berval bv, bv2;
1470         short op;
1471         Modifications *mod = NULL, *modlist = NULL, **modtail;
1472         int i;
1473
1474         modtail = &modlist;
1475
1476         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1477                 ad = NULL;
1478                 bv = vals[i];
1479
1480                 colon = ber_bvchr( &bv, ':' );
1481                 if ( !colon ) {
1482                         /* Invalid */
1483                         continue;
1484                 }
1485
1486                 bv.bv_len = colon - bv.bv_val;
1487                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1488                         /* Invalid */
1489                         continue;
1490                 }
1491
1492                 /* Ignore dynamically generated attrs */
1493                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1494                         continue;
1495                 }
1496
1497                 /* Ignore excluded attrs */
1498                 if ( ldap_charray_inlist( si->si_exattrs,
1499                         ad->ad_type->sat_cname.bv_val ) )
1500                 {
1501                         continue;
1502                 }
1503
1504                 switch(colon[1]) {
1505                 case '+':       op = LDAP_MOD_ADD; break;
1506                 case '-':       op = LDAP_MOD_DELETE; break;
1507                 case '=':       op = LDAP_MOD_REPLACE; break;
1508                 case '#':       op = LDAP_MOD_INCREMENT; break;
1509                 default:        continue;
1510                 }
1511
1512                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1513                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1514                         mod->sml_flags = 0;
1515                         mod->sml_op = op;
1516                         mod->sml_next = NULL;
1517                         mod->sml_desc = ad;
1518                         mod->sml_type = ad->ad_cname;
1519                         mod->sml_values = NULL;
1520                         mod->sml_nvalues = NULL;
1521                         mod->sml_numvals = 0;
1522
1523                         *modtail = mod;
1524                         modtail = &mod->sml_next;
1525                 }
1526                 if ( colon[2] == ' ' ) {
1527                         bv.bv_val = colon + 3;
1528                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1529                         ber_dupbv( &bv2, &bv );
1530                         ber_bvarray_add( &mod->sml_values, &bv2 );
1531                         mod->sml_numvals++;
1532                 }
1533         }
1534         return modlist;
1535 }
1536
1537 static Modifications *
1538 syncrepl_changelog_mods(
1539         syncinfo_t *si,
1540         struct berval *vals
1541 )
1542 {
1543         return NULL;    /* FIXME */
1544 }
1545
1546 static int
1547 syncrepl_message_to_op(
1548         syncinfo_t      *si,
1549         Operation       *op,
1550         LDAPMessage     *msg
1551 )
1552 {
1553         BerElement      *ber = NULL;
1554         Modifications   *modlist = NULL;
1555         logschema *ls;
1556         SlapReply rs = { REP_RESULT };
1557         slap_callback cb = { NULL, null_callback, NULL, NULL };
1558
1559         const char      *text;
1560         char txtbuf[SLAP_TEXT_BUFLEN];
1561         size_t textlen = sizeof txtbuf;
1562
1563         struct berval   bdn, dn = BER_BVNULL, ndn;
1564         struct berval   bv, *bvals = NULL;
1565         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1566                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1567                 psup = BER_BVNULL, nsup = BER_BVNULL;
1568         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1569
1570         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1571                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1572                         "Message type should be entry (%d)",
1573                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1574                 return -1;
1575         }
1576
1577         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1578                 ls = &accesslog_sc;
1579         else
1580                 ls = &changelog_sc;
1581
1582         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1583
1584         if ( rc != LDAP_SUCCESS ) {
1585                 Debug( LDAP_DEBUG_ANY,
1586                         "syncrepl_message_to_op: %s dn get failed (%d)",
1587                         si->si_ridtxt, rc, 0 );
1588                 return rc;
1589         }
1590
1591         op->o_tag = LBER_DEFAULT;
1592         op->o_bd = si->si_wbe;
1593
1594         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1595                 == LDAP_SUCCESS ) {
1596                 if ( bv.bv_val == NULL )
1597                         break;
1598
1599                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1600                         bdn = bvals[0];
1601                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1602                         ber_dupbv( &op->o_req_dn, &dn );
1603                         ber_dupbv( &op->o_req_ndn, &ndn );
1604                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1605                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1606                         freeReqDn = 1;
1607                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1608                         int i = verb_to_mask( bvals[0].bv_val, modops );
1609                         if ( i < 0 ) {
1610                                 Debug( LDAP_DEBUG_ANY,
1611                                         "syncrepl_message_to_op: %s unknown op %s",
1612                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1613                                 ch_free( bvals );
1614                                 rc = -1;
1615                                 goto done;
1616                         }
1617                         op->o_tag = modops[i].mask;
1618                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1619                         /* Parse attribute into modlist */
1620                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1621                                 modlist = syncrepl_accesslog_mods( si, bvals );
1622                         } else {
1623                                 modlist = syncrepl_changelog_mods( si, bvals );
1624                         }
1625                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1626                         rdn = bvals[0];
1627                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1628                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1629                                 deleteOldRdn = 1;
1630                         }
1631                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1632                         sup = bvals[0];
1633                 } else if ( !ber_bvstrcasecmp( &bv,
1634                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1635                 {
1636                         slap_queue_csn( op, bvals );
1637                 }
1638                 ch_free( bvals );
1639         }
1640
1641         /* If we didn't get a mod type or a target DN, bail out */
1642         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1643                 rc = -1;
1644                 goto done;
1645         }
1646
1647         op->o_callback = &cb;
1648         slap_op_time( &op->o_time, &op->o_tincr );
1649
1650         switch( op->o_tag ) {
1651         case LDAP_REQ_ADD:
1652         case LDAP_REQ_MODIFY:
1653                 /* If we didn't get required data, bail */
1654                 if ( !modlist ) goto done;
1655
1656                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1657
1658                 if ( rc != LDAP_SUCCESS ) {
1659                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1660                                 "mods check (%s)\n",
1661                                 si->si_ridtxt, text, 0 );
1662                         goto done;
1663                 }
1664
1665                 if ( op->o_tag == LDAP_REQ_ADD ) {
1666                         Entry *e = entry_alloc();
1667                         op->ora_e = e;
1668                         op->ora_e->e_name = op->o_req_dn;
1669                         op->ora_e->e_nname = op->o_req_ndn;
1670                         freeReqDn = 0;
1671                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1672                         if( rc != LDAP_SUCCESS ) {
1673                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1674                                 "mods2entry (%s)\n",
1675                                         si->si_ridtxt, text, 0 );
1676                         } else {
1677                                 rc = op->o_bd->be_add( op, &rs );
1678                                 Debug( LDAP_DEBUG_SYNC,
1679                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1680                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1681                         }
1682                         if ( e == op->ora_e )
1683                                 be_entry_release_w( op, op->ora_e );
1684                 } else {
1685                         op->orm_modlist = modlist;
1686                         op->o_bd = si->si_wbe;
1687                         rc = op->o_bd->be_modify( op, &rs );
1688                         modlist = op->orm_modlist;
1689                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1690                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1691                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1692                         op->o_bd = si->si_be;
1693                 }
1694                 break;
1695         case LDAP_REQ_MODRDN:
1696                 if ( BER_BVISNULL( &rdn ) ) goto done;
1697
1698                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1699                         goto done;
1700                 }
1701                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1702                         goto done;
1703                 }
1704                 if ( !BER_BVISNULL( &sup ) ) {
1705                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1706                                 goto done;
1707                         }
1708                         op->orr_newSup = &psup;
1709                         op->orr_nnewSup = &nsup;
1710                 } else {
1711                         op->orr_newSup = NULL;
1712                         op->orr_nnewSup = NULL;
1713                 }
1714                 op->orr_newrdn = prdn;
1715                 op->orr_nnewrdn = nrdn;
1716                 op->orr_deleteoldrdn = deleteOldRdn;
1717                 op->orr_modlist = NULL;
1718                 if ( slap_modrdn2mods( op, &rs ) ) {
1719                         goto done;
1720                 }
1721
1722                 /* Append modlist for operational attrs */
1723                 {
1724                         Modifications *m;
1725
1726                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1727                                 ;
1728                         m->sml_next = modlist;
1729                         modlist = NULL;
1730                 }
1731                 rc = op->o_bd->be_modrdn( op, &rs );
1732                 slap_mods_free( op->orr_modlist, 1 );
1733                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1734                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1735                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1736                 break;
1737         case LDAP_REQ_DELETE:
1738                 rc = op->o_bd->be_delete( op, &rs );
1739                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1740                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1741                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1742                 break;
1743         }
1744 done:
1745         slap_graduate_commit_csn( op );
1746         op->o_bd = si->si_be;
1747         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1748         BER_BVZERO( &op->o_csn );
1749         if ( modlist ) {
1750                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1751         }
1752         if ( !BER_BVISNULL( &rdn ) ) {
1753                 if ( !BER_BVISNULL( &nsup ) ) {
1754                         ch_free( nsup.bv_val );
1755                 }
1756                 if ( !BER_BVISNULL( &psup ) ) {
1757                         ch_free( psup.bv_val );
1758                 }
1759                 if ( !BER_BVISNULL( &nrdn ) ) {
1760                         ch_free( nrdn.bv_val );
1761                 }
1762                 if ( !BER_BVISNULL( &prdn ) ) {
1763                         ch_free( prdn.bv_val );
1764                 }
1765         }
1766         if ( freeReqDn ) {
1767                 ch_free( op->o_req_ndn.bv_val );
1768                 ch_free( op->o_req_dn.bv_val );
1769         }
1770         ber_free( ber, 0 );
1771         return rc;
1772 }
1773
1774 static int
1775 syncrepl_message_to_entry(
1776         syncinfo_t      *si,
1777         Operation       *op,
1778         LDAPMessage     *msg,
1779         Modifications   **modlist,
1780         Entry                   **entry,
1781         int             syncstate
1782 )
1783 {
1784         Entry           *e = NULL;
1785         BerElement      *ber = NULL;
1786         Modifications   tmp;
1787         Modifications   *mod;
1788         Modifications   **modtail = modlist;
1789
1790         const char      *text;
1791         char txtbuf[SLAP_TEXT_BUFLEN];
1792         size_t textlen = sizeof txtbuf;
1793
1794         struct berval   bdn = BER_BVNULL, dn, ndn;
1795         int             rc, is_ctx;
1796
1797         *modlist = NULL;
1798
1799         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1800                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1801                         "Message type should be entry (%d)",
1802                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1803                 return -1;
1804         }
1805
1806         op->o_tag = LDAP_REQ_ADD;
1807
1808         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1809         if ( rc != LDAP_SUCCESS ) {
1810                 Debug( LDAP_DEBUG_ANY,
1811                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1812                         si->si_ridtxt, rc, 0 );
1813                 return rc;
1814         }
1815
1816         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1817                 /* NOTE: this could be done even before decoding the DN,
1818                  * although encoding errors wouldn't be detected */
1819                 rc = LDAP_SUCCESS;
1820                 goto done;
1821         }
1822
1823         if ( entry == NULL ) {
1824                 return -1;
1825         }
1826
1827         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1828         ber_dupbv( &op->o_req_dn, &dn );
1829         ber_dupbv( &op->o_req_ndn, &ndn );
1830         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1831         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1832
1833         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1834
1835         e = entry_alloc();
1836         e->e_name = op->o_req_dn;
1837         e->e_nname = op->o_req_ndn;
1838
1839         while ( ber_remaining( ber ) ) {
1840                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1841                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1842                 {
1843                         break;
1844                 }
1845
1846                 /* Drop all updates to the contextCSN of the context entry
1847                  * (ITS#4622, etc.)
1848                  */
1849                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1850                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1851                         ber_bvarray_free( tmp.sml_values );
1852                         continue;
1853                 }
1854
1855                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1856
1857                 mod->sml_op = LDAP_MOD_REPLACE;
1858                 mod->sml_flags = 0;
1859                 mod->sml_next = NULL;
1860                 mod->sml_desc = NULL;
1861                 mod->sml_type = tmp.sml_type;
1862                 mod->sml_values = tmp.sml_values;
1863                 mod->sml_nvalues = NULL;
1864                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1865
1866                 *modtail = mod;
1867                 modtail = &mod->sml_next;
1868         }
1869
1870         if ( *modlist == NULL ) {
1871                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1872                         si->si_ridtxt, 0, 0 );
1873                 rc = -1;
1874                 goto done;
1875         }
1876
1877         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1878
1879         if ( rc != LDAP_SUCCESS ) {
1880                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1881                         si->si_ridtxt, text, 0 );
1882                 goto done;
1883         }
1884
1885         /* Strip out dynamically generated attrs */
1886         for ( modtail = modlist; *modtail ; ) {
1887                 mod = *modtail;
1888                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1889                         *modtail = mod->sml_next;
1890                         slap_mod_free( &mod->sml_mod, 0 );
1891                         ch_free( mod );
1892                 } else {
1893                         modtail = &mod->sml_next;
1894                 }
1895         }
1896
1897         /* Strip out attrs in exattrs list */
1898         for ( modtail = modlist; *modtail ; ) {
1899                 mod = *modtail;
1900                 if ( ldap_charray_inlist( si->si_exattrs,
1901                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1902                 {
1903                         *modtail = mod->sml_next;
1904                         slap_mod_free( &mod->sml_mod, 0 );
1905                         ch_free( mod );
1906                 } else {
1907                         modtail = &mod->sml_next;
1908                 }
1909         }
1910
1911         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1912         if( rc != LDAP_SUCCESS ) {
1913                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1914                         si->si_ridtxt, text, 0 );
1915         }
1916
1917 done:
1918         ber_free( ber, 0 );
1919         if ( rc != LDAP_SUCCESS ) {
1920                 if ( e ) {
1921                         entry_free( e );
1922                         e = NULL;
1923                 }
1924         }
1925         if ( entry )
1926                 *entry = e;
1927
1928         return rc;
1929 }
1930
1931 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1932
1933 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1934  * entry if a previous refresh was interrupted before sending us a new
1935  * context state. We try to compare the new entry to the existing entry
1936  * and ignore the new entry if they are the same.
1937  *
1938  * Also, we may get an update where the entryDN has changed, due to
1939  * a ModDn on the provider. We detect this as well, so we can issue
1940  * the corresponding operation locally.
1941  *
1942  * In the case of a modify, we get a list of all the attributes
1943  * in the original entry. Rather than deleting the entry and re-adding it,
1944  * we issue a Modify request that deletes all the attributes and adds all
1945  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1946  * entry.
1947  *
1948  * We otherwise distinguish ModDN from Modify; in the case of
1949  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1950  * operational attributes from the entry, and do a regular ModDN.
1951  */
1952 typedef struct dninfo {
1953         Entry *new_entry;
1954         struct berval dn;
1955         struct berval ndn;
1956         struct berval nnewSup;
1957         int renamed;    /* Was an existing entry renamed? */
1958         int delOldRDN;  /* Was old RDN deleted? */
1959         Modifications **modlist;        /* the modlist we received */
1960         Modifications *mods;    /* the modlist we compared */
1961         Attribute *oldNattr;    /* old naming attr */
1962         AttributeDescription *oldDesc;  /* for renames */
1963         AttributeDescription *newDesc;  /* for renames */
1964 } dninfo;
1965
1966 /* return 1 if inserted, 0 otherwise */
1967 static int
1968 avl_presentlist_insert(
1969         syncinfo_t* si,
1970         struct berval *syncUUID )
1971 {
1972         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1973
1974         syncuuid_bv->bv_len = syncUUID->bv_len;
1975         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1976         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1977         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1978
1979         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1980                 syncuuid_cmp, avl_dup_error ) )
1981         {
1982                 ch_free( syncuuid_bv );
1983                 return 0;
1984         }
1985
1986         return 1;
1987 }
1988
1989 static int
1990 syncrepl_entry(
1991         syncinfo_t* si,
1992         Operation *op,
1993         Entry* entry,
1994         Modifications** modlist,
1995         int syncstate,
1996         struct berval* syncUUID,
1997         struct berval* syncCSN )
1998 {
1999         Backend *be = op->o_bd;
2000         slap_callback   cb = { NULL, NULL, NULL, NULL };
2001         int syncuuid_inserted = 0;
2002         struct berval   syncUUID_strrep = BER_BVNULL;
2003
2004         SlapReply       rs_search = {REP_RESULT};
2005         SlapReply       rs_delete = {REP_RESULT};
2006         SlapReply       rs_add = {REP_RESULT};
2007         SlapReply       rs_modify = {REP_RESULT};
2008         Filter f = {0};
2009         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2010         int rc = LDAP_SUCCESS;
2011
2012         struct berval pdn = BER_BVNULL;
2013         dninfo dni = {0};
2014         int     retry = 1;
2015         int     freecsn = 1;
2016
2017         Debug( LDAP_DEBUG_SYNC,
2018                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2019                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2020
2021         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2022                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2023                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2024                 }
2025         }
2026
2027         if ( syncstate == LDAP_SYNC_PRESENT ) {
2028                 return 0;
2029         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2030                 if ( entry == NULL ) {
2031                         return 0;
2032                 }
2033         }
2034
2035         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2036         if ( syncstate != LDAP_SYNC_DELETE ) {
2037                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2038
2039                 if ( a == NULL ) {
2040                         /* add if missing */
2041                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2042                                 &syncUUID_strrep, syncUUID );
2043
2044                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2045                         /* replace only if necessary */
2046                         if ( a->a_nvals != a->a_vals ) {
2047                                 ber_memfree( a->a_nvals[0].bv_val );
2048                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2049                         }
2050                         ber_memfree( a->a_vals[0].bv_val );
2051                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2052                 }
2053         }
2054
2055         f.f_choice = LDAP_FILTER_EQUALITY;
2056         f.f_ava = &ava;
2057         ava.aa_desc = slap_schema.si_ad_entryUUID;
2058         ava.aa_value = *syncUUID;
2059
2060         if ( syncuuid_inserted ) {
2061                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2062                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2063         }
2064         op->ors_filter = &f;
2065
2066         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2067         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2068                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2069         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2070         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2071                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2072         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2073         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2074
2075         op->o_tag = LDAP_REQ_SEARCH;
2076         op->ors_scope = LDAP_SCOPE_SUBTREE;
2077         op->ors_deref = LDAP_DEREF_NEVER;
2078
2079         /* get the entry for this UUID */
2080         op->o_req_dn = si->si_base;
2081         op->o_req_ndn = si->si_base;
2082
2083         op->o_time = slap_get_time();
2084         op->ors_tlimit = SLAP_NO_LIMIT;
2085         op->ors_slimit = 1;
2086         op->ors_limit = NULL;
2087
2088         op->ors_attrs = slap_anlist_all_attributes;
2089         op->ors_attrsonly = 0;
2090
2091         /* set callback function */
2092         op->o_callback = &cb;
2093         cb.sc_response = dn_callback;
2094         cb.sc_private = &dni;
2095         dni.new_entry = entry;
2096         dni.modlist = modlist;
2097
2098         rc = be->be_search( op, &rs_search );
2099         Debug( LDAP_DEBUG_SYNC,
2100                         "syncrepl_entry: %s be_search (%d)\n",
2101                         si->si_ridtxt, rc, 0 );
2102
2103         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2104                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2105         }
2106
2107         cb.sc_response = null_callback;
2108         cb.sc_private = si;
2109
2110         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2111                 Debug( LDAP_DEBUG_SYNC,
2112                                 "syncrepl_entry: %s %s\n",
2113                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2114         } else {
2115                 Debug( LDAP_DEBUG_SYNC,
2116                                 "syncrepl_entry: %s %s\n",
2117                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2118         }
2119
2120         assert( BER_BVISNULL( &op->o_csn ) );
2121         if ( syncCSN ) {
2122                 slap_queue_csn( op, syncCSN );
2123         }
2124
2125         slap_op_time( &op->o_time, &op->o_tincr );
2126         switch ( syncstate ) {
2127         case LDAP_SYNC_ADD:
2128         case LDAP_SYNC_MODIFY:
2129                 if ( BER_BVISNULL( &op->o_csn ))
2130                 {
2131
2132                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2133                         if ( a ) {
2134                                 /* FIXME: op->o_csn is assumed to be
2135                                  * on the thread's slab; this needs
2136                                  * to be cleared ASAP.
2137                                  * What happens if already present?
2138                                  */
2139                                 assert( BER_BVISNULL( &op->o_csn ) );
2140                                 op->o_csn = a->a_vals[0];
2141                                 freecsn = 0;
2142                         }
2143                 }
2144 retry_add:;
2145                 if ( BER_BVISNULL( &dni.dn ) ) {
2146
2147                         op->o_req_dn = entry->e_name;
2148                         op->o_req_ndn = entry->e_nname;
2149                         op->o_tag = LDAP_REQ_ADD;
2150                         op->ora_e = entry;
2151                         op->o_bd = si->si_wbe;
2152
2153                         rc = op->o_bd->be_add( op, &rs_add );
2154                         Debug( LDAP_DEBUG_SYNC,
2155                                         "syncrepl_entry: %s be_add (%d)\n",
2156                                         si->si_ridtxt, rc, 0 );
2157                         switch ( rs_add.sr_err ) {
2158                         case LDAP_SUCCESS:
2159                                 if ( op->ora_e == entry ) {
2160                                         be_entry_release_w( op, entry );
2161                                 }
2162                                 entry = NULL;
2163                                 break;
2164
2165                         case LDAP_REFERRAL:
2166                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2167                          * only if the suffix entry is not present */
2168                         case LDAP_NO_SUCH_OBJECT:
2169                                 rc = syncrepl_add_glue( op, entry );
2170                                 entry = NULL;
2171                                 break;
2172
2173                         /* if an entry was added via syncrepl_add_glue(),
2174                          * it likely has no entryUUID, so the previous
2175                          * be_search() doesn't find it.  In this case,
2176                          * give syncrepl a chance to modify it. Also
2177                          * allow for entries that were recreated with the
2178                          * same DN but a different entryUUID.
2179                          */
2180                         case LDAP_ALREADY_EXISTS:
2181                                 if ( retry ) {
2182                                         Operation       op2 = *op;
2183                                         SlapReply       rs2 = { 0 };
2184                                         slap_callback   cb2 = { 0 };
2185
2186                                         op2.o_bd = be;
2187                                         op2.o_tag = LDAP_REQ_SEARCH;
2188                                         op2.o_req_dn = entry->e_name;
2189                                         op2.o_req_ndn = entry->e_nname;
2190                                         op2.ors_scope = LDAP_SCOPE_BASE;
2191                                         op2.ors_deref = LDAP_DEREF_NEVER;
2192                                         op2.ors_attrs = slap_anlist_all_attributes;
2193                                         op2.ors_attrsonly = 0;
2194                                         op2.ors_limit = NULL;
2195                                         op2.ors_slimit = 1;
2196                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2197
2198                                         f.f_choice = LDAP_FILTER_PRESENT;
2199                                         f.f_desc = slap_schema.si_ad_objectClass;
2200                                         op2.ors_filter = &f;
2201                                         op2.ors_filterstr = generic_filterstr;
2202
2203                                         op2.o_callback = &cb2;
2204                                         cb2.sc_response = dn_callback;
2205                                         cb2.sc_private = &dni;
2206
2207                                         rc = be->be_search( &op2, &rs2 );
2208                                         if ( rc ) goto done;
2209
2210                                         retry = 0;
2211                                         slap_op_time( &op->o_time, &op->o_tincr );
2212                                         goto retry_add;
2213                                 }
2214                                 /* FALLTHRU */
2215
2216                         default:
2217                                 Debug( LDAP_DEBUG_ANY,
2218                                         "syncrepl_entry: %s be_add failed (%d)\n",
2219                                         si->si_ridtxt, rs_add.sr_err, 0 );
2220                                 break;
2221                         }
2222                         op->o_bd = be;
2223                         goto done;
2224                 }
2225                 /* FALLTHRU */
2226                 op->o_req_dn = dni.dn;
2227                 op->o_req_ndn = dni.ndn;
2228                 if ( dni.renamed ) {
2229                         struct berval noldp, newp;
2230                         Modifications *mod, **modtail, **ml, *m2;
2231                         int i, got_replace = 0, just_rename = 0;
2232
2233                         op->o_tag = LDAP_REQ_MODRDN;
2234                         dnRdn( &entry->e_name, &op->orr_newrdn );
2235                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2236
2237                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2238                                 dnParent( &entry->e_name, &newp );
2239                                 op->orr_newSup = &newp;
2240                                 op->orr_nnewSup = &dni.nnewSup;
2241                         } else {
2242                                 op->orr_newSup = NULL;
2243                                 op->orr_nnewSup = NULL;
2244                         }
2245                         op->orr_deleteoldrdn = dni.delOldRDN;
2246                         op->orr_modlist = NULL;
2247                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2248                                 goto done;
2249                         }
2250
2251                         /* Drop the RDN-related mods from this op, because their
2252                          * equivalents were just setup by slap_modrdn2mods.
2253                          *
2254                          * If delOldRDN is TRUE then we should see a delete modop
2255                          * for oldDesc. We might see a replace instead.
2256                          *  delete with no values: therefore newDesc != oldDesc.
2257                          *   if oldNattr had only one value, then Drop this op.
2258                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2259                          *  delete with N values: Drop oldRDN value, keep remainder.
2260                          *  replace with 1 value: if oldNattr had only one value and
2261                          *     newDesc == oldDesc, Drop this op.
2262                          * Any other cases must be left intact.
2263                          *
2264                          * We should also see an add modop for newDesc. (But not if
2265                          * we got a replace modop due to delOldRDN.) If it has
2266                          * multiple values, we'll have to drop the new RDN value.
2267                          */
2268                         modtail = &op->orr_modlist;
2269                         if ( dni.delOldRDN ) {
2270                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2271                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2272                                                 mod = *ml;
2273                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2274                                                         dni.oldDesc != dni.newDesc ) {
2275                                                         /* This Replace is due to other Mods.
2276                                                          * Just let it ride.
2277                                                          */
2278                                                         continue;
2279                                                 }
2280                                                 if ( mod->sml_numvals <= 1 &&
2281                                                         dni.oldNattr->a_numvals == 1 &&
2282                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2283                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2284                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2285                                                                 got_replace = 1;
2286                                                         /* Drop this op */
2287                                                         *ml = mod->sml_next;
2288                                                         mod->sml_next = NULL;
2289                                                         slap_mods_free( mod, 1 );
2290                                                         break;
2291                                                 }
2292                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2293                                                         continue;
2294                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2295                                                         if ( m2->sml_desc == dni.oldDesc &&
2296                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2297                                                 }
2298                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2299                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2300                                                                 mod->sml_numvals--;
2301                                                                 ch_free( mod->sml_values[i].bv_val );
2302                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2303                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2304                                                                 if ( mod->sml_nvalues ) {
2305                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2306                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2307                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2308                                                                 }
2309                                                                 break;
2310                                                         }
2311                                                 }
2312                                                 break;
2313                                         }
2314                                 }
2315                         }
2316                         if ( !got_replace ) {
2317                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2318                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2319                                                 mod = *ml;
2320                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2321                                                         continue;
2322                                                 if ( mod->sml_numvals == 1 ) {
2323                                                         /* Drop this op */
2324                                                         *ml = mod->sml_next;
2325                                                         mod->sml_next = NULL;
2326                                                         slap_mods_free( mod, 1 );
2327                                                         break;
2328                                                 }
2329                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2330                                                         if ( m2->sml_desc == dni.oldDesc &&
2331                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2332                                                 }
2333                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2334                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2335                                                                 mod->sml_numvals--;
2336                                                                 ch_free( mod->sml_values[i].bv_val );
2337                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2338                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2339                                                                 if ( mod->sml_nvalues ) {
2340                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2341                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2342                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2343                                                                 }
2344                                                                 break;
2345                                                         }
2346                                                 }
2347                                                 break;
2348                                         }
2349                                 }
2350                         }
2351
2352                         /* RDNs must be NUL-terminated for back-ldap */
2353                         noldp = op->orr_newrdn;
2354                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2355                         noldp = op->orr_nnewrdn;
2356                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2357
2358                         /* Setup opattrs too */
2359                         {
2360                                 static AttributeDescription *nullattr = NULL;
2361                                 static AttributeDescription **const opattrs[] = {
2362                                         &slap_schema.si_ad_entryCSN,
2363                                         &slap_schema.si_ad_modifiersName,
2364                                         &slap_schema.si_ad_modifyTimestamp,
2365                                         &nullattr
2366                                 };
2367                                 AttributeDescription *opattr;
2368                                 int i;
2369
2370                                 modtail = &m2;
2371                                 /* pull mod off incoming modlist */
2372                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2373                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2374                                         {
2375                                                 if ( (*ml)->sml_desc == opattr ) {
2376                                                         mod = *ml;
2377                                                         *ml = mod->sml_next;
2378                                                         mod->sml_next = NULL;
2379                                                         *modtail = mod;
2380                                                         modtail = &mod->sml_next;
2381                                                         break;
2382                                                 }
2383                                         }
2384                                 }
2385                                 /* If there are still Modifications left, put the opattrs
2386                                  * back, and let be_modify run. Otherwise, append the opattrs
2387                                  * to the orr_modlist.
2388                                  */
2389                                 if ( dni.mods ) {
2390                                         mod = dni.mods;
2391                                         /* don't set a CSN for the rename op */
2392                                         if ( syncCSN )
2393                                                 slap_graduate_commit_csn( op );
2394                                 } else {
2395                                         mod = op->orr_modlist;
2396                                         just_rename = 1;
2397                                 }
2398                                 for ( ; mod->sml_next; mod=mod->sml_next );
2399                                 mod->sml_next = m2;
2400                         }
2401                         op->o_bd = si->si_wbe;
2402                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2403                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2404                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2405
2406                         slap_mods_free( op->orr_modlist, 1 );
2407                         Debug( LDAP_DEBUG_SYNC,
2408                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2409                                         si->si_ridtxt, rc, 0 );
2410                         op->o_bd = be;
2411                         /* Renamed entries may still have other mods so just fallthru */
2412                         op->o_req_dn = entry->e_name;
2413                         op->o_req_ndn = entry->e_nname;
2414                         /* Use CSN on the modify */
2415                         if ( syncCSN && !just_rename )
2416                                 slap_queue_csn( op, syncCSN );
2417                 }
2418                 if ( dni.mods ) {
2419                         op->o_tag = LDAP_REQ_MODIFY;
2420                         op->orm_modlist = dni.mods;
2421                         op->orm_no_opattrs = 1;
2422                         op->o_bd = si->si_wbe;
2423
2424                         rc = op->o_bd->be_modify( op, &rs_modify );
2425                         slap_mods_free( op->orm_modlist, 1 );
2426                         op->orm_no_opattrs = 0;
2427                         Debug( LDAP_DEBUG_SYNC,
2428                                         "syncrepl_entry: %s be_modify (%d)\n",
2429                                         si->si_ridtxt, rc, 0 );
2430                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2431                                 Debug( LDAP_DEBUG_ANY,
2432                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2433                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2434                         }
2435                         op->o_bd = be;
2436                 } else if ( !dni.renamed ) {
2437                         Debug( LDAP_DEBUG_SYNC,
2438                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2439                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2440                 }
2441                 goto done;
2442         case LDAP_SYNC_DELETE :
2443                 if ( !BER_BVISNULL( &dni.dn ) ) {
2444                         op->o_req_dn = dni.dn;
2445                         op->o_req_ndn = dni.ndn;
2446                         op->o_tag = LDAP_REQ_DELETE;
2447                         op->o_bd = si->si_wbe;
2448                         rc = op->o_bd->be_delete( op, &rs_delete );
2449                         Debug( LDAP_DEBUG_SYNC,
2450                                         "syncrepl_entry: %s be_delete (%d)\n",
2451                                         si->si_ridtxt, rc, 0 );
2452
2453                         while ( rs_delete.sr_err == LDAP_SUCCESS
2454                                 && op->o_delete_glue_parent ) {
2455                                 op->o_delete_glue_parent = 0;
2456                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2457                                         slap_callback cb = { NULL };
2458                                         cb.sc_response = slap_null_cb;
2459                                         dnParent( &op->o_req_ndn, &pdn );
2460                                         op->o_req_dn = pdn;
2461                                         op->o_req_ndn = pdn;
2462                                         op->o_callback = &cb;
2463                                         op->o_bd->be_delete( op, &rs_delete );
2464                                 } else {
2465                                         break;
2466                                 }
2467                         }
2468                         op->o_bd = be;
2469                 }
2470                 goto done;
2471
2472         default :
2473                 Debug( LDAP_DEBUG_ANY,
2474                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2475                 goto done;
2476         }
2477
2478 done:
2479         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2480                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2481                 BER_BVZERO( &syncUUID_strrep );
2482         }
2483         if ( !BER_BVISNULL( &dni.ndn ) ) {
2484                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2485         }
2486         if ( !BER_BVISNULL( &dni.dn ) ) {
2487                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2488         }
2489         if ( entry ) {
2490                 entry_free( entry );
2491         }
2492         if ( syncCSN ) {
2493                 slap_graduate_commit_csn( op );
2494         }
2495         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2496                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2497         }
2498         BER_BVZERO( &op->o_csn );
2499         return rc;
2500 }
2501
2502 static struct berval gcbva[] = {
2503         BER_BVC("top"),
2504         BER_BVC("glue"),
2505         BER_BVNULL
2506 };
2507
2508 #define NP_DELETE_ONE   2
2509
2510 static void
2511 syncrepl_del_nonpresent(
2512         Operation *op,
2513         syncinfo_t *si,
2514         BerVarray uuids,
2515         struct sync_cookie *sc,
2516         int m )
2517 {
2518         Backend* be = op->o_bd;
2519         slap_callback   cb = { NULL };
2520         SlapReply       rs_search = {REP_RESULT};
2521         SlapReply       rs_delete = {REP_RESULT};
2522         SlapReply       rs_modify = {REP_RESULT};
2523         struct nonpresent_entry *np_list, *np_prev;
2524         int rc;
2525         AttributeName   an[2];
2526
2527         struct berval pdn = BER_BVNULL;
2528         struct berval csn;
2529
2530         op->o_req_dn = si->si_base;
2531         op->o_req_ndn = si->si_base;
2532
2533         cb.sc_response = nonpresent_callback;
2534         cb.sc_private = si;
2535
2536         op->o_callback = &cb;
2537         op->o_tag = LDAP_REQ_SEARCH;
2538         op->ors_scope = si->si_scope;
2539         op->ors_deref = LDAP_DEREF_NEVER;
2540         op->o_time = slap_get_time();
2541         op->ors_tlimit = SLAP_NO_LIMIT;
2542
2543
2544         if ( uuids ) {
2545                 Filter uf;
2546                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2547                 int i;
2548
2549                 op->ors_attrsonly = 1;
2550                 op->ors_attrs = slap_anlist_no_attrs;
2551                 op->ors_limit = NULL;
2552                 op->ors_filter = &uf;
2553
2554                 uf.f_ava = &eq;
2555                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2556                 uf.f_next = NULL;
2557                 uf.f_choice = LDAP_FILTER_EQUALITY;
2558                 si->si_refreshDelete |= NP_DELETE_ONE;
2559
2560                 for (i=0; uuids[i].bv_val; i++) {
2561                         op->ors_slimit = 1;
2562                         uf.f_av_value = uuids[i];
2563                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2564                         rc = be->be_search( op, &rs_search );
2565                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2566                 }
2567                 si->si_refreshDelete ^= NP_DELETE_ONE;
2568         } else {
2569                 Filter *cf, *of;
2570                 Filter mmf[2];
2571                 AttributeAssertion mmaa;
2572
2573                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2574                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2575                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2576                 op->ors_attrs = an;
2577                 op->ors_slimit = SLAP_NO_LIMIT;
2578                 op->ors_tlimit = SLAP_NO_LIMIT;
2579                 op->ors_limit = NULL;
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 our newest cookie CSN.
2585                  */
2586                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2587                         Filter *f;
2588                         int i;
2589
2590                         f = mmf;
2591                         f->f_choice = LDAP_FILTER_AND;
2592                         f->f_next = op->ors_filter;
2593                         f->f_and = f+1;
2594                         of = f->f_and;
2595                         f = of;
2596                         f->f_choice = LDAP_FILTER_LE;
2597                         f->f_ava = &mmaa;
2598                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2599                         f->f_next = NULL;
2600                         BER_BVZERO( &f->f_av_value );
2601                         for ( i=0; i<sc->numcsns; i++ ) {
2602                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2603                                         f->f_av_value = sc->ctxcsn[i];
2604                         }
2605                         of = op->ors_filter;
2606                         op->ors_filter = mmf;
2607                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2608                 } else {
2609                         cf = NULL;
2610                         op->ors_filterstr = si->si_filterstr;
2611                 }
2612                 op->o_nocaching = 1;
2613
2614
2615                 rc = be->be_search( op, &rs_search );
2616                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2617                         op->ors_filter = of;
2618                 }
2619                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2620                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2621                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2622                 }
2623
2624         }
2625
2626         op->o_nocaching = 0;
2627
2628         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2629
2630                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2631                         csn = sc->ctxcsn[m];
2632                 } else {
2633                         csn = si->si_syncCookie.ctxcsn[0];
2634                 }
2635
2636                 op->o_bd = si->si_wbe;
2637                 slap_queue_csn( op, &csn );
2638
2639                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2640                 while ( np_list != NULL ) {
2641                         LDAP_LIST_REMOVE( np_list, npe_link );
2642                         np_prev = np_list;
2643                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2644                         op->o_tag = LDAP_REQ_DELETE;
2645                         op->o_callback = &cb;
2646                         cb.sc_response = null_callback;
2647                         cb.sc_private = si;
2648                         op->o_req_dn = *np_prev->npe_name;
2649                         op->o_req_ndn = *np_prev->npe_nname;
2650                         rc = op->o_bd->be_delete( op, &rs_delete );
2651                         Debug( LDAP_DEBUG_SYNC,
2652                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2653                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2654
2655                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2656                                 Modifications mod1, mod2;
2657                                 mod1.sml_op = LDAP_MOD_REPLACE;
2658                                 mod1.sml_flags = 0;
2659                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2660                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2661                                 mod1.sml_numvals = 2;
2662                                 mod1.sml_values = &gcbva[0];
2663                                 mod1.sml_nvalues = NULL;
2664                                 mod1.sml_next = &mod2;
2665
2666                                 mod2.sml_op = LDAP_MOD_REPLACE;
2667                                 mod2.sml_flags = 0;
2668                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2669                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2670                                 mod2.sml_numvals = 1;
2671                                 mod2.sml_values = &gcbva[1];
2672                                 mod2.sml_nvalues = NULL;
2673                                 mod2.sml_next = NULL;
2674
2675                                 op->o_tag = LDAP_REQ_MODIFY;
2676                                 op->orm_modlist = &mod1;
2677
2678                                 rc = op->o_bd->be_modify( op, &rs_modify );
2679                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2680                         }
2681
2682                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2683                                         op->o_delete_glue_parent ) {
2684                                 op->o_delete_glue_parent = 0;
2685                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2686                                         slap_callback cb = { NULL };
2687                                         cb.sc_response = slap_null_cb;
2688                                         dnParent( &op->o_req_ndn, &pdn );
2689                                         op->o_req_dn = pdn;
2690                                         op->o_req_ndn = pdn;
2691                                         op->o_callback = &cb;
2692                                         /* give it a root privil ? */
2693                                         op->o_bd->be_delete( op, &rs_delete );
2694                                 } else {
2695                                         break;
2696                                 }
2697                         }
2698
2699                         op->o_delete_glue_parent = 0;
2700
2701                         ber_bvfree( np_prev->npe_name );
2702                         ber_bvfree( np_prev->npe_nname );
2703                         ch_free( np_prev );
2704
2705                         if ( slapd_shutdown ) {
2706                                 break;
2707                         }
2708                 }
2709
2710                 slap_graduate_commit_csn( op );
2711                 op->o_bd = be;
2712
2713                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2714                 BER_BVZERO( &op->o_csn );
2715         }
2716
2717         return;
2718 }
2719
2720 int
2721 syncrepl_add_glue(
2722         Operation* op,
2723         Entry *e )
2724 {
2725         Backend *be = op->o_bd;
2726         slap_callback cb = { NULL };
2727         Attribute       *a;
2728         int     rc;
2729         int suffrdns;
2730         int i;
2731         struct berval dn = BER_BVNULL;
2732         struct berval ndn = BER_BVNULL;
2733         Entry   *glue;
2734         SlapReply       rs_add = {REP_RESULT};
2735         struct berval   ptr, nptr;
2736         char            *comma;
2737
2738         op->o_tag = LDAP_REQ_ADD;
2739         op->o_callback = &cb;
2740         cb.sc_response = null_callback;
2741         cb.sc_private = NULL;
2742
2743         dn = e->e_name;
2744         ndn = e->e_nname;
2745
2746         /* count RDNs in suffix */
2747         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2748                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2749                         comma++;
2750                         ptr.bv_len -= comma - ptr.bv_val;
2751                         ptr.bv_val = comma;
2752                         i++;
2753                 }
2754                 suffrdns = i;
2755         } else {
2756                 /* suffix is "" */
2757                 suffrdns = 0;
2758         }
2759
2760         /* Start with BE suffix */
2761         ptr = dn;
2762         for ( i = 0; i < suffrdns; i++ ) {
2763                 comma = ber_bvrchr( &ptr, ',' );
2764                 if ( comma != NULL ) {
2765                         ptr.bv_len = comma - ptr.bv_val;
2766                 } else {
2767                         ptr.bv_len = 0;
2768                         break;
2769                 }
2770         }
2771
2772         if ( !BER_BVISEMPTY( &ptr ) ) {
2773                 dn.bv_len -= ptr.bv_len + 1;
2774                 dn.bv_val += ptr.bv_len + 1;
2775         }
2776
2777         /* the normalizedDNs are always the same length, no counting
2778          * required.
2779          */
2780         nptr = ndn;
2781         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2782                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2783                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2784
2785                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2786
2787         } else {
2788                 nptr.bv_len = 0;
2789         }
2790
2791         while ( ndn.bv_val > e->e_nname.bv_val ) {
2792                 glue = entry_alloc();
2793                 ber_dupbv( &glue->e_name, &dn );
2794                 ber_dupbv( &glue->e_nname, &ndn );
2795
2796                 a = attr_alloc( slap_schema.si_ad_objectClass );
2797
2798                 a->a_numvals = 2;
2799                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2800                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2801                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2802                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2803
2804                 a->a_nvals = a->a_vals;
2805
2806                 a->a_next = glue->e_attrs;
2807                 glue->e_attrs = a;
2808
2809                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2810
2811                 a->a_numvals = 1;
2812                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2813                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2814                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2815
2816                 a->a_nvals = a->a_vals;
2817
2818                 a->a_next = glue->e_attrs;
2819                 glue->e_attrs = a;
2820
2821                 op->o_req_dn = glue->e_name;
2822                 op->o_req_ndn = glue->e_nname;
2823                 op->ora_e = glue;
2824                 rc = be->be_add ( op, &rs_add );
2825                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2826                         if ( op->ora_e == glue )
2827                                 be_entry_release_w( op, glue );
2828                 } else {
2829                 /* incl. ALREADY EXIST */
2830                         entry_free( glue );
2831                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2832                                 entry_free( e );
2833                                 return rc;
2834                         }
2835                 }
2836
2837                 /* Move to next child */
2838                 comma = ber_bvrchr( &ptr, ',' );
2839                 if ( comma == NULL ) {
2840                         break;
2841                 }
2842                 ptr.bv_len = comma - ptr.bv_val;
2843
2844                 dn.bv_val = ++comma;
2845                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2846
2847                 comma = ber_bvrchr( &nptr, ',' );
2848                 assert( comma != NULL );
2849                 nptr.bv_len = comma - nptr.bv_val;
2850
2851                 ndn.bv_val = ++comma;
2852                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2853         }
2854
2855         op->o_req_dn = e->e_name;
2856         op->o_req_ndn = e->e_nname;
2857         op->ora_e = e;
2858         rc = be->be_add ( op, &rs_add );
2859         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2860                 if ( op->ora_e == e )
2861                         be_entry_release_w( op, e );
2862         } else {
2863                 entry_free( e );
2864         }
2865
2866         return rc;
2867 }
2868
2869 static int
2870 syncrepl_updateCookie(
2871         syncinfo_t *si,
2872         Operation *op,
2873         struct berval *pdn,
2874         struct sync_cookie *syncCookie )
2875 {
2876         Backend *be = op->o_bd;
2877         Modifications mod;
2878         struct berval first = BER_BVNULL;
2879 #ifdef CHECK_CSN
2880         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
2881 #endif
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 #ifdef CHECK_CSN
2899         for ( i=0; i<syncCookie->numcsns; i++ ) {
2900                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
2901         }
2902         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2903                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
2904         }
2905 #endif
2906
2907         /* clone the cookieState CSNs so we can Replace the whole thing */
2908         mod.sml_numvals = si->si_cookieState->cs_num;
2909         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2910         for ( i=0; i<mod.sml_numvals; i++ )
2911                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2912         BER_BVZERO( &mod.sml_values[i] );
2913
2914         /* find any CSNs in the syncCookie that are newer than the cookieState */
2915         for ( i=0; i<syncCookie->numcsns; i++ ) {
2916                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2917                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2918                                 continue;
2919                         len = syncCookie->ctxcsn[i].bv_len;
2920                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2921                                 len = si->si_cookieState->cs_vals[j].bv_len;
2922                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2923                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2924                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2925                                 if ( BER_BVISNULL( &first ) ) {
2926                                         first = syncCookie->ctxcsn[i];
2927
2928                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2929                                 {
2930                                         first = syncCookie->ctxcsn[i];
2931                                 }
2932                         }
2933                         break;
2934                 }
2935                 /* there was no match for this SID, it's a new CSN */
2936                 if ( j == si->si_cookieState->cs_num ) {
2937                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2938                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2939                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2940                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2941                         if ( BER_BVISNULL( &first ) ) {
2942                                 first = syncCookie->ctxcsn[i];
2943                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2944                         {
2945                                 first = syncCookie->ctxcsn[i];
2946                         }
2947                 }
2948         }
2949         /* Should never happen, ITS#5065 */
2950         if ( BER_BVISNULL( &first )) {
2951                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2952                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2953                 return 0;
2954         }
2955         op->o_bd = si->si_wbe;
2956         slap_queue_csn( op, &first );
2957
2958         op->o_tag = LDAP_REQ_MODIFY;
2959
2960         cb.sc_response = null_callback;
2961         cb.sc_private = si;
2962
2963         op->o_callback = &cb;
2964         op->o_req_dn = op->o_bd->be_suffix[0];
2965         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2966
2967         /* update contextCSN */
2968         op->o_dont_replicate = 1;
2969
2970         op->orm_modlist = &mod;
2971         op->orm_no_opattrs = 1;
2972         rc = op->o_bd->be_modify( op, &rs_modify );
2973         op->orm_no_opattrs = 0;
2974         op->o_dont_replicate = 0;
2975
2976         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2977                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2978                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2979                 /* If we replaced any old values */
2980                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2981                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2982                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2983                                                 &mod.sml_values[i] );
2984                 }
2985                 /* Handle any added values */
2986                 if ( i < mod.sml_numvals ) {
2987                         si->si_cookieState->cs_num = mod.sml_numvals;
2988                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2989                         free( si->si_cookieState->cs_sids );
2990                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2991                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2992                 }
2993
2994                 si->si_cookieState->cs_age++;
2995                 si->si_cookieAge = si->si_cookieState->cs_age;
2996         } else {
2997                 Debug( LDAP_DEBUG_ANY,
2998                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2999                         si->si_ridtxt, rs_modify.sr_err, 0 );
3000         }
3001         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3002
3003         op->o_bd = be;
3004         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3005         BER_BVZERO( &op->o_csn );
3006         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3007         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3008
3009 #ifdef CHECK_CSN
3010         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3011                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3012         }
3013 #endif
3014
3015         return rc;
3016 }
3017
3018 static void
3019 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3020         Modifications ***mret, Modifications ***mcur )
3021 {
3022         int i, j;
3023         Modifications *mod, **modtail;
3024
3025         modtail = *mret;
3026
3027         if ( old ) {
3028                 int n, o, nn, no;
3029                 struct berval **adds, **dels;
3030                 /* count old and new */
3031                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3032                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3033
3034                 /* there MUST be both old and new values */
3035                 assert( o != 0 );
3036                 assert( n != 0 );
3037                 j = 0;
3038
3039                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3040                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3041
3042                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3043                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3044
3045                 nn = n; no = o;
3046
3047                 for ( i=0; i<o; i++ ) {
3048                         for ( j=0; j<n; j++ ) {
3049                                 if ( !adds[j] )
3050                                         continue;
3051                                 if ( bvmatch( dels[i], adds[j] ) ) {
3052                                         no--;
3053                                         nn--;
3054                                         adds[j] = NULL;
3055                                         dels[i] = NULL;
3056                                         break;
3057                                 }
3058                         }
3059                 }
3060
3061                 /* Don't delete/add an objectClass, always use the replace op.
3062                  * Modify would fail if provider has replaced entry with a new,
3063                  * and the new explicitly includes a superior of a class that was
3064                  * only included implicitly in the old entry.  Ref ITS#5517.
3065                  *
3066                  * Also use replace op if attr has no equality matching rule.
3067                  * (ITS#5781)
3068                  */
3069                 if ( nn && no < o &&
3070                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3071                          !old->a_desc->ad_type->sat_equality ))
3072                         no = o;
3073
3074                 i = j;
3075                 /* all old values were deleted, just use the replace op */
3076                 if ( no == o ) {
3077                         i = j-1;
3078                 } else if ( no ) {
3079                 /* delete some values */
3080                         mod = ch_malloc( sizeof( Modifications ) );
3081                         mod->sml_op = LDAP_MOD_DELETE;
3082                         mod->sml_flags = 0;
3083                         mod->sml_desc = old->a_desc;
3084                         mod->sml_type = mod->sml_desc->ad_cname;
3085                         mod->sml_numvals = no;
3086                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3087                         if ( old->a_vals != old->a_nvals ) {
3088                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3089                         } else {
3090                                 mod->sml_nvalues = NULL;
3091                         }
3092                         j = 0;
3093                         for ( i = 0; i < o; i++ ) {
3094                                 if ( !dels[i] ) continue;
3095                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3096                                 if ( mod->sml_nvalues ) {
3097                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3098                                 }
3099                                 j++;
3100                         }
3101                         BER_BVZERO( &mod->sml_values[j] );
3102                         if ( mod->sml_nvalues ) {
3103                                 BER_BVZERO( &mod->sml_nvalues[j] );
3104                         }
3105                         *modtail = mod;
3106                         modtail = &mod->sml_next;
3107                         i = j;
3108                 }
3109                 op->o_tmpfree( dels, op->o_tmpmemctx );
3110                 /* some values were added */
3111                 if ( nn && no < o ) {
3112                         mod = ch_malloc( sizeof( Modifications ) );
3113                         mod->sml_op = LDAP_MOD_ADD;
3114                         mod->sml_flags = 0;
3115                         mod->sml_desc = old->a_desc;
3116                         mod->sml_type = mod->sml_desc->ad_cname;
3117                         mod->sml_numvals = nn;
3118                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3119                         if ( old->a_vals != old->a_nvals ) {
3120                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3121                         } else {
3122                                 mod->sml_nvalues = NULL;
3123                         }
3124                         j = 0;
3125                         for ( i = 0; i < n; i++ ) {
3126                                 if ( !adds[i] ) continue;
3127                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3128                                 if ( mod->sml_nvalues ) {
3129                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3130                                 }
3131                                 j++;
3132                         }
3133                         BER_BVZERO( &mod->sml_values[j] );
3134                         if ( mod->sml_nvalues ) {
3135                                 BER_BVZERO( &mod->sml_nvalues[j] );
3136                         }
3137                         *modtail = mod;
3138                         modtail = &mod->sml_next;
3139                         i = j;
3140                 }
3141                 op->o_tmpfree( adds, op->o_tmpmemctx );
3142         } else {
3143                 /* new attr, just use the new mod */
3144                 i = 0;
3145                 j = 1;
3146         }
3147         /* advance to next element */
3148         mod = **mcur;
3149         if ( mod ) {
3150                 if ( i != j ) {
3151                         **mcur = mod->sml_next;
3152                         *modtail = mod;
3153                         modtail = &mod->sml_next;
3154                 } else {
3155                         *mcur = &mod->sml_next;
3156                 }
3157         }
3158         *mret = modtail;
3159 }
3160
3161 static int
3162 dn_callback(
3163         Operation*      op,
3164         SlapReply*      rs )
3165 {
3166         dninfo *dni = op->o_callback->sc_private;
3167
3168         if ( rs->sr_type == REP_SEARCH ) {
3169                 if ( !BER_BVISNULL( &dni->dn ) ) {
3170                         Debug( LDAP_DEBUG_ANY,
3171                                 "dn_callback : consistency error - "
3172                                 "entryUUID is not unique\n", 0, 0, 0 );
3173                 } else {
3174                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3175                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3176                         /* If there is a new entry, see if it differs from the old.
3177                          * We compare the non-normalized values so that cosmetic changes
3178                          * in the provider are always propagated.
3179                          */
3180                         if ( dni->new_entry ) {
3181                                 Modifications **modtail, **ml;
3182                                 Attribute *old, *new;
3183                                 struct berval old_rdn, new_rdn;
3184                                 struct berval old_p, new_p;
3185                                 int is_ctx, new_sup = 0;
3186
3187                                 /* If old entry is not a glue entry, make sure new entry
3188                                  * is actually newer than old entry
3189                                  */
3190                                 if ( !is_entry_glue( rs->sr_entry )) {
3191                                         old = attr_find( rs->sr_entry->e_attrs,
3192                                                 slap_schema.si_ad_objectClass );
3193                                         old = attr_find( rs->sr_entry->e_attrs,
3194                                                 slap_schema.si_ad_entryCSN );
3195                                         new = attr_find( dni->new_entry->e_attrs,
3196                                                 slap_schema.si_ad_entryCSN );
3197                                         if ( new && old ) {
3198                                                 int rc;
3199                                                 ber_len_t len = old->a_vals[0].bv_len;
3200                                                 if ( len > new->a_vals[0].bv_len )
3201                                                         len = new->a_vals[0].bv_len;
3202                                                 rc = memcmp( old->a_vals[0].bv_val,
3203                                                         new->a_vals[0].bv_val, len );
3204                                                 if ( rc > 0 ) {
3205                                                         Debug( LDAP_DEBUG_SYNC,
3206                                                                 "dn_callback : new entry is older than ours "
3207                                                                 "%s ours %s, new %s\n",
3208                                                                 rs->sr_entry->e_name.bv_val,
3209                                                                 old->a_vals[0].bv_val,
3210                                                                 new->a_vals[0].bv_val );
3211                                                         return LDAP_SUCCESS;
3212                                                 } else if ( rc == 0 ) {
3213                                                         Debug( LDAP_DEBUG_SYNC,
3214                                                                 "dn_callback : entries have identical CSN "
3215                                                                 "%s %s\n",
3216                                                                 rs->sr_entry->e_name.bv_val,
3217                                                                 old->a_vals[0].bv_val, 0 );
3218                                                         return LDAP_SUCCESS;
3219                                                 }
3220                                         }
3221                                 }
3222
3223                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3224                                         &op->o_bd->be_nsuffix[0] );
3225
3226                                 /* Did the DN change?
3227                                  * case changes in the parent are ignored,
3228                                  * we only want to know if the RDN was
3229                                  * actually changed.
3230                                  */
3231                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3232                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3233                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3234                                 dnParent( &dni->new_entry->e_nname, &new_p );
3235
3236                                 new_sup = !dn_match( &old_p, &new_p );
3237                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3238                                 {
3239                                         struct berval oldRDN, oldVal;
3240                                         AttributeDescription *ad = NULL;
3241                                         int oldpos, newpos;
3242                                         Attribute *a;
3243
3244                                         dni->renamed = 1;
3245                                         if ( new_sup )
3246                                                 dni->nnewSup = new_p;
3247
3248                                         /* See if the oldRDN was deleted */
3249                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3250                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3251                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3252                                                 oldRDN.bv_val );
3253                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3254                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3255                                         dni->oldDesc = ad;
3256                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3257                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3258                                         dni->oldNattr = a;
3259                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3260                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3261                                         if ( !a || oldpos != newpos || attr_valfind( a,
3262                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3263                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3264                                                 SLAP_MR_VALUE_OF_SYNTAX,
3265                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3266                                         {
3267                                                 dni->delOldRDN = 1;
3268                                         }
3269                                         /* Get the newRDN's desc */
3270                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3271                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3272                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3273                                         ad = NULL;
3274                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3275                                         dni->newDesc = ad;
3276
3277                                         /* A ModDN has happened, but in Refresh mode other
3278                                          * changes may have occurred before we picked it up.
3279                                          * So fallthru to regular Modify processing.
3280                                          */
3281                                 }
3282
3283                                 modtail = &dni->mods;
3284                                 ml = dni->modlist;
3285
3286                                 /* We assume that attributes are saved in the same order
3287                                  * in the remote and local databases. So if we walk through
3288                                  * the attributeDescriptions one by one they should match in
3289                                  * lock step. If not, look for an add or delete.
3290                                  */
3291                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3292                                                 old && new; )
3293                                 {
3294                                         /* If we've seen this before, use its mod now */
3295                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3296                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3297                                                 new = new->a_next;
3298                                                 continue;
3299                                         }
3300                                         /* Skip contextCSN */
3301                                         if ( is_ctx && old->a_desc ==
3302                                                 slap_schema.si_ad_contextCSN ) {
3303                                                 old = old->a_next;
3304                                                 continue;
3305                                         }
3306
3307                                         if ( old->a_desc != new->a_desc ) {
3308                                                 Modifications *mod;
3309                                                 Attribute *tmp;
3310
3311                                                 /* If it's just been re-added later,
3312                                                  * remember that we've seen it.
3313                                                  */
3314                                                 tmp = attr_find( new, old->a_desc );
3315                                                 if ( tmp ) {
3316                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3317                                                 } else {
3318                                                         /* If it's a new attribute, pull it in.
3319                                                          */
3320                                                         tmp = attr_find( old, new->a_desc );
3321                                                         if ( !tmp ) {
3322                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3323                                                                 new = new->a_next;
3324                                                                 continue;
3325                                                         }
3326                                                         /* Delete old attr */
3327                                                         mod = ch_malloc( sizeof( Modifications ) );
3328                                                         mod->sml_op = LDAP_MOD_DELETE;
3329                                                         mod->sml_flags = 0;
3330                                                         mod->sml_desc = old->a_desc;
3331                                                         mod->sml_type = mod->sml_desc->ad_cname;
3332                                                         mod->sml_numvals = 0;
3333                                                         mod->sml_values = NULL;
3334                                                         mod->sml_nvalues = NULL;
3335                                                         *modtail = mod;
3336                                                         modtail = &mod->sml_next;
3337                                                 }
3338                                                 old = old->a_next;
3339                                                 continue;
3340                                         }
3341                                         /* kludge - always update modifiersName so that it
3342                                          * stays co-located with the other mod opattrs. But only
3343                                          * if we know there are other valid mods.
3344                                          */
3345                                         if ( dni->mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3346                                                 old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3347                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3348                                         else
3349                                                 attr_cmp( op, old, new, &modtail, &ml );
3350                                         new = new->a_next;
3351                                         old = old->a_next;
3352                                 }
3353                                 *modtail = *ml;
3354                                 *ml = NULL;
3355                         }
3356                 }
3357         } else if ( rs->sr_type == REP_RESULT ) {
3358                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3359                         Debug( LDAP_DEBUG_ANY,
3360                                 "dn_callback : consistency error - "
3361                                 "entryUUID is not unique\n", 0, 0, 0 );
3362                 }
3363         }
3364
3365         return LDAP_SUCCESS;
3366 }
3367
3368 static int
3369 nonpresent_callback(
3370         Operation*      op,
3371         SlapReply*      rs )
3372 {
3373         syncinfo_t *si = op->o_callback->sc_private;
3374         Attribute *a;
3375         int count = 0;
3376         struct berval* present_uuid = NULL;
3377         struct nonpresent_entry *np_entry;
3378
3379         if ( rs->sr_type == REP_RESULT ) {
3380                 count = avl_free( si->si_presentlist, ch_free );
3381                 si->si_presentlist = NULL;
3382
3383         } else if ( rs->sr_type == REP_SEARCH ) {
3384                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3385                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3386
3387                         if ( a ) {
3388                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3389                                         syncuuid_cmp );
3390                         }
3391
3392                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3393                                 char buf[sizeof("rid=999 non")];
3394
3395                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3396                                         present_uuid ? "" : "non" );
3397
3398                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3399                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3400                         }
3401
3402                         if ( a == NULL ) return 0;
3403                 }
3404
3405                 if ( present_uuid == NULL ) {
3406                         np_entry = (struct nonpresent_entry *)
3407                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3408                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3409                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3410                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3411
3412                 } else {
3413                         avl_delete( &si->si_presentlist,
3414                                 &a->a_nvals[0], syncuuid_cmp );
3415                         ch_free( present_uuid );
3416                 }
3417         }
3418         return LDAP_SUCCESS;
3419 }
3420
3421 static int
3422 null_callback(
3423         Operation*      op,
3424         SlapReply*      rs )
3425 {
3426         if ( rs->sr_err != LDAP_SUCCESS &&
3427                 rs->sr_err != LDAP_REFERRAL &&
3428                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3429                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3430                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3431         {
3432                 Debug( LDAP_DEBUG_ANY,
3433                         "null_callback : error code 0x%x\n",
3434                         rs->sr_err, 0, 0 );
3435         }
3436         return LDAP_SUCCESS;
3437 }
3438
3439 static struct berval *
3440 slap_uuidstr_from_normalized(
3441         struct berval* uuidstr,
3442         struct berval* normalized,
3443         void *ctx )
3444 {
3445 #if 0
3446         struct berval *new;
3447         unsigned char nibble;
3448         int i, d = 0;
3449
3450         if ( normalized == NULL ) return NULL;
3451         if ( normalized->bv_len != 16 ) return NULL;
3452
3453         if ( uuidstr ) {
3454                 new = uuidstr;
3455         } else {
3456                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3457                 if ( new == NULL ) {
3458                         return NULL;
3459                 }
3460         }
3461
3462         new->bv_len = 36;
3463
3464         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3465                 if ( new != uuidstr ) {
3466                         slap_sl_free( new, ctx );
3467                 }
3468                 return NULL;
3469         }
3470
3471         for ( i = 0; i < 16; i++ ) {
3472                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3473                         new->bv_val[(i<<1)+d] = '-';
3474                         d += 1;
3475                 }
3476
3477                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3478                 if ( nibble < 10 ) {
3479                         new->bv_val[(i<<1)+d] = nibble + '0';
3480                 } else {
3481                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3482                 }
3483
3484                 nibble = (normalized->bv_val[i]) & 0xF;
3485                 if ( nibble < 10 ) {
3486                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3487                 } else {
3488                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3489                 }
3490         }
3491
3492         new->bv_val[new->bv_len] = '\0';
3493         return new;
3494 #endif
3495
3496         struct berval   *new;
3497         int             rc = 0;
3498
3499         if ( normalized == NULL ) return NULL;
3500         if ( normalized->bv_len != 16 ) return NULL;
3501
3502         if ( uuidstr ) {
3503                 new = uuidstr;
3504
3505         } else {
3506                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3507                 if ( new == NULL ) {
3508                         return NULL;
3509                 }
3510         }
3511
3512         new->bv_len = 36;
3513
3514         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3515                 rc = 1;
3516                 goto done;
3517         }
3518
3519         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3520                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3521
3522 done:;
3523         if ( rc == -1 ) {
3524                 if ( new != NULL ) {
3525                         if ( new->bv_val != NULL ) {
3526                                 slap_sl_free( new->bv_val, ctx );
3527                         }
3528
3529                         if ( new != uuidstr ) {
3530                                 slap_sl_free( new, ctx );
3531                         }
3532                 }
3533                 new = NULL;
3534
3535         } else {
3536                 new->bv_len = rc;
3537         }
3538
3539         return new;
3540 }
3541
3542 static int
3543 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3544 {
3545         const struct berval *uuid1 = v_uuid1;
3546         const struct berval *uuid2 = v_uuid2;
3547         int rc = uuid1->bv_len - uuid2->bv_len;
3548         if ( rc ) return rc;
3549         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3550 }
3551
3552 void
3553 syncinfo_free( syncinfo_t *sie, int free_all )
3554 {
3555         syncinfo_t *si_next;
3556
3557         if ( free_all && sie->si_cookieState ) {
3558                 ch_free( sie->si_cookieState->cs_sids );
3559                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3560                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3561                 ch_free( sie->si_cookieState );
3562         }
3563         do {
3564                 si_next = sie->si_next;
3565
3566                 if ( sie->si_ld ) {
3567                         if ( sie->si_conn ) {
3568                                 connection_client_stop( sie->si_conn );
3569                                 sie->si_conn = NULL;
3570                         }
3571                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3572                 }
3573
3574                 /* re-fetch it, in case it was already removed */
3575                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3576                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3577                 if ( sie->si_re ) {
3578                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3579                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3580                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3581                 }
3582
3583                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3584                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3585
3586                 bindconf_free( &sie->si_bindconf );
3587
3588                 if ( sie->si_filterstr.bv_val ) {
3589                         ch_free( sie->si_filterstr.bv_val );
3590                 }
3591                 if ( sie->si_logfilterstr.bv_val ) {
3592                         ch_free( sie->si_logfilterstr.bv_val );
3593                 }
3594                 if ( sie->si_base.bv_val ) {
3595                         ch_free( sie->si_base.bv_val );
3596                 }
3597                 if ( sie->si_logbase.bv_val ) {
3598                         ch_free( sie->si_logbase.bv_val );
3599                 }
3600                 if ( sie->si_attrs ) {
3601                         int i = 0;
3602                         while ( sie->si_attrs[i] != NULL ) {
3603                                 ch_free( sie->si_attrs[i] );
3604                                 i++;
3605                         }
3606                         ch_free( sie->si_attrs );
3607                 }
3608                 if ( sie->si_exattrs ) {
3609                         int i = 0;
3610                         while ( sie->si_exattrs[i] != NULL ) {
3611                                 ch_free( sie->si_exattrs[i] );
3612                                 i++;
3613                         }
3614                         ch_free( sie->si_exattrs );
3615                 }
3616                 if ( sie->si_anlist ) {
3617                         int i = 0;
3618                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3619                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3620                                 i++;
3621                         }
3622                         ch_free( sie->si_anlist );
3623                 }
3624                 if ( sie->si_exanlist ) {
3625                         int i = 0;
3626                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3627                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3628                                 i++;
3629                         }
3630                         ch_free( sie->si_exanlist );
3631                 }
3632                 if ( sie->si_retryinterval ) {
3633                         ch_free( sie->si_retryinterval );
3634                 }
3635                 if ( sie->si_retrynum ) {
3636                         ch_free( sie->si_retrynum );
3637                 }
3638                 if ( sie->si_retrynum_init ) {
3639                         ch_free( sie->si_retrynum_init );
3640                 }
3641                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3642                 if ( sie->si_presentlist ) {
3643                     avl_free( sie->si_presentlist, ch_free );
3644                 }
3645                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3646                         struct nonpresent_entry* npe;
3647                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3648                         LDAP_LIST_REMOVE( npe, npe_link );
3649                         if ( npe->npe_name ) {
3650                                 if ( npe->npe_name->bv_val ) {
3651                                         ch_free( npe->npe_name->bv_val );
3652                                 }
3653                                 ch_free( npe->npe_name );
3654                         }
3655                         if ( npe->npe_nname ) {
3656                                 if ( npe->npe_nname->bv_val ) {
3657                                         ch_free( npe->npe_nname->bv_val );
3658                                 }
3659                                 ch_free( npe->npe_nname );
3660                         }
3661                         ch_free( npe );
3662                 }
3663                 ch_free( sie );
3664                 sie = si_next;
3665         } while ( free_all && si_next );
3666 }
3667
3668
3669
3670 /* NOTE: used & documented in slapd.conf(5) */
3671 #define IDSTR                   "rid"
3672 #define PROVIDERSTR             "provider"
3673 #define SCHEMASTR               "schemachecking"
3674 #define FILTERSTR               "filter"
3675 #define SEARCHBASESTR           "searchbase"
3676 #define SCOPESTR                "scope"
3677 #define ATTRSONLYSTR            "attrsonly"
3678 #define ATTRSSTR                "attrs"
3679 #define TYPESTR                 "type"
3680 #define INTERVALSTR             "interval"
3681 #define RETRYSTR                "retry"
3682 #define SLIMITSTR               "sizelimit"
3683 #define TLIMITSTR               "timelimit"
3684 #define SYNCDATASTR             "syncdata"
3685 #define LOGBASESTR              "logbase"
3686 #define LOGFILTERSTR    "logfilter"
3687
3688 /* FIXME: undocumented */
3689 #define EXATTRSSTR              "exattrs"
3690 #define MANAGEDSAITSTR          "manageDSAit"
3691
3692 /* mandatory */
3693 enum {
3694         GOT_RID                 = 0x00000001U,
3695         GOT_PROVIDER            = 0x00000002U,
3696         GOT_SCHEMACHECKING      = 0x00000004U,
3697         GOT_FILTER              = 0x00000008U,
3698         GOT_SEARCHBASE          = 0x00000010U,
3699         GOT_SCOPE               = 0x00000020U,
3700         GOT_ATTRSONLY           = 0x00000040U,
3701         GOT_ATTRS               = 0x00000080U,
3702         GOT_TYPE                = 0x00000100U,
3703         GOT_INTERVAL            = 0x00000200U,
3704         GOT_RETRY               = 0x00000400U,
3705         GOT_SLIMIT              = 0x00000800U,
3706         GOT_TLIMIT              = 0x00001000U,
3707         GOT_SYNCDATA            = 0x00002000U,
3708         GOT_LOGBASE             = 0x00004000U,
3709         GOT_LOGFILTER           = 0x00008000U,
3710         GOT_EXATTRS             = 0x00010000U,
3711         GOT_MANAGEDSAIT         = 0x00020000U,
3712         GOT_BINDCONF            = 0x00040000U,
3713
3714 /* check */
3715         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3716 };
3717
3718 static struct {
3719         struct berval key;
3720         int val;
3721 } scopes[] = {
3722         { BER_BVC("base"), LDAP_SCOPE_BASE },
3723         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3724         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3725         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3726         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3727         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3728         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3729         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3730         { BER_BVNULL, 0 }
3731 };
3732
3733 static slap_verbmasks datamodes[] = {
3734         { BER_BVC("default"), SYNCDATA_DEFAULT },
3735         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3736         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3737         { BER_BVNULL, 0 }
3738 };
3739
3740 static int
3741 parse_syncrepl_retry(
3742         ConfigArgs      *c,
3743         char            *arg,
3744         syncinfo_t      *si )
3745 {
3746         char **retry_list;
3747         int j, k, n;
3748         int use_default = 0;
3749
3750         char *val = arg + STRLENOF( RETRYSTR "=" );
3751         if ( strcasecmp( val, "undefined" ) == 0 ) {
3752                 val = "3600 +";
3753                 use_default = 1;
3754         }
3755
3756         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3757         retry_list[0] = NULL;
3758
3759         slap_str2clist( &retry_list, val, " ,\t" );
3760
3761         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3762         n = k / 2;
3763         if ( k % 2 ) {
3764                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3765                         "Error: incomplete syncrepl retry list" );
3766                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3767                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3768                         ch_free( retry_list[k] );
3769                 }
3770                 ch_free( retry_list );
3771                 return 1;
3772         }
3773         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3774         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3775         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3776         for ( j = 0; j < n; j++ ) {
3777                 unsigned long   t;
3778                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3779                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3780                                 "Error: invalid retry interval \"%s\" (#%d)",
3781                                 retry_list[j*2], j );
3782                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3783                         /* do some cleanup */
3784                         return 1;
3785                 }
3786                 si->si_retryinterval[j] = (time_t)t;
3787                 if ( *retry_list[j*2+1] == '+' ) {
3788                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3789                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3790                         j++;
3791                         break;
3792                 } else {
3793                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3794                                         || si->si_retrynum_init[j] <= 0 )
3795                         {
3796                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3797                                         "Error: invalid initial retry number \"%s\" (#%d)",
3798                                         retry_list[j*2+1], j );
3799                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3800                                 /* do some cleanup */
3801                                 return 1;
3802                         }
3803                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3804                                         || si->si_retrynum[j] <= 0 )
3805                         {
3806                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3807                                         "Error: invalid retry number \"%s\" (#%d)",
3808                                         retry_list[j*2+1], j );
3809                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3810                                 /* do some cleanup */
3811                                 return 1;
3812                         }
3813                 }
3814         }
3815         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3816         si->si_retrynum[j] = RETRYNUM_TAIL;
3817         si->si_retryinterval[j] = 0;
3818
3819         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3820                 ch_free( retry_list[k] );
3821         }
3822         ch_free( retry_list );
3823         if ( !use_default ) {
3824                 si->si_got |= GOT_RETRY;
3825         }
3826
3827         return 0;
3828 }
3829
3830 static int
3831 parse_syncrepl_line(
3832         ConfigArgs      *c,
3833         syncinfo_t      *si )
3834 {
3835         int     i;
3836         char    *val;
3837
3838         for ( i = 1; i < c->argc; i++ ) {
3839                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3840                                         STRLENOF( IDSTR "=" ) ) )
3841                 {
3842                         int tmp;
3843                         /* '\0' string terminator accounts for '=' */
3844                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3845                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3846                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3847                                         "Error: parse_syncrepl_line: "
3848                                         "unable to parse syncrepl id \"%s\"", val );
3849                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3850                                 return -1;
3851                         }
3852                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3853                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3854                                         "Error: parse_syncrepl_line: "
3855                                         "syncrepl id %d is out of range [0..4095]", tmp );
3856                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3857                                 return -1;
3858                         }
3859                         si->si_rid = tmp;
3860                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3861                         si->si_got |= GOT_RID;
3862                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3863                                         STRLENOF( PROVIDERSTR "=" ) ) )
3864                 {
3865                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3866                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3867                         si->si_got |= GOT_PROVIDER;
3868                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3869                                         STRLENOF( SCHEMASTR "=" ) ) )
3870                 {
3871                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3872                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3873                                 si->si_schemachecking = 1;
3874                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3875                                 si->si_schemachecking = 0;
3876                         } else {
3877                                 si->si_schemachecking = 1;
3878                         }
3879                         si->si_got |= GOT_SCHEMACHECKING;
3880                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3881                                         STRLENOF( FILTERSTR "=" ) ) )
3882                 {
3883                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3884                         if ( si->si_filterstr.bv_val )
3885                                 ch_free( si->si_filterstr.bv_val );
3886                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3887                         si->si_got |= GOT_FILTER;
3888                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3889                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3890                 {
3891                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3892                         if ( si->si_logfilterstr.bv_val )
3893                                 ch_free( si->si_logfilterstr.bv_val );
3894                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3895                         si->si_got |= GOT_LOGFILTER;
3896                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3897                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3898                 {
3899                         struct berval   bv;
3900                         int             rc;
3901
3902                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3903                         if ( si->si_base.bv_val ) {
3904                                 ch_free( si->si_base.bv_val );
3905                         }
3906                         ber_str2bv( val, 0, 0, &bv );
3907                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3908                         if ( rc != LDAP_SUCCESS ) {
3909                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3910                                         "Invalid base DN \"%s\": %d (%s)",
3911                                         val, rc, ldap_err2string( rc ) );
3912                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3913                                 return -1;
3914                         }
3915                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3916                                 ch_free( si->si_base.bv_val );
3917                                 BER_BVZERO( &si->si_base );
3918                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3919                                         "Base DN \"%s\" is not within the database naming context",
3920                                         val );
3921                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3922                                 return -1;
3923                         }
3924                         si->si_got |= GOT_SEARCHBASE;
3925                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3926                                         STRLENOF( LOGBASESTR "=" ) ) )
3927                 {
3928                         struct berval   bv;
3929                         int             rc;
3930
3931                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3932                         if ( si->si_logbase.bv_val ) {
3933                                 ch_free( si->si_logbase.bv_val );
3934                         }
3935                         ber_str2bv( val, 0, 0, &bv );
3936                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3937                         if ( rc != LDAP_SUCCESS ) {
3938                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3939                                         "Invalid logbase DN \"%s\": %d (%s)",
3940                                         val, rc, ldap_err2string( rc ) );
3941                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3942                                 return -1;
3943                         }
3944                         si->si_got |= GOT_LOGBASE;
3945                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3946                                         STRLENOF( SCOPESTR "=" ) ) )
3947                 {
3948                         int j;
3949                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3950                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3951                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3952                                         si->si_scope = scopes[j].val;
3953                                         break;
3954                                 }
3955                         }
3956                         if ( BER_BVISNULL(&scopes[j].key) ) {
3957                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3958                                         "Error: parse_syncrepl_line: "
3959                                         "unknown scope \"%s\"", val);
3960                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3961                                 return -1;
3962                         }
3963                         si->si_got |= GOT_SCOPE;
3964                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3965                                         STRLENOF( ATTRSONLYSTR ) ) )
3966                 {
3967                         si->si_attrsonly = 1;
3968                         si->si_got |= GOT_ATTRSONLY;
3969                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3970                                         STRLENOF( ATTRSSTR "=" ) ) )
3971                 {
3972                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3973                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3974                                 char *attr_fname;
3975                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3976                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3977                                 if ( si->si_anlist == NULL ) {
3978                                         ch_free( attr_fname );
3979                                         return -1;
3980                                 }
3981                                 si->si_anfile = attr_fname;
3982                         } else {
3983                                 char *str, *s, *next;
3984                                 const char *delimstr = " ,\t";
3985                                 str = ch_strdup( val );
3986                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3987                                                 s != NULL;
3988                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3989                                 {
3990                                         if ( strlen(s) == 1 && *s == '*' ) {
3991                                                 si->si_allattrs = 1;
3992                                                 val[ s - str ] = delimstr[0];
3993                                         }
3994                                         if ( strlen(s) == 1 && *s == '+' ) {
3995                                                 si->si_allopattrs = 1;
3996                                                 val [ s - str ] = delimstr[0];
3997                                         }
3998                                 }
3999                                 ch_free( str );
4000                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4001                                 if ( si->si_anlist == NULL ) {
4002                                         return -1;
4003                                 }
4004                         }
4005                         si->si_got |= GOT_ATTRS;
4006                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4007                                         STRLENOF( EXATTRSSTR "=" ) ) )
4008                 {
4009                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4010                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4011                                 char *attr_fname;
4012                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4013                                 si->si_exanlist = file2anlist(
4014                                         si->si_exanlist, attr_fname, " ,\t" );
4015                                 if ( si->si_exanlist == NULL ) {
4016                                         ch_free( attr_fname );
4017                                         return -1;
4018                                 }
4019                                 ch_free( attr_fname );
4020                         } else {
4021                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4022                                 if ( si->si_exanlist == NULL ) {
4023                                         return -1;
4024                                 }
4025                         }
4026                         si->si_got |= GOT_EXATTRS;
4027                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4028                                         STRLENOF( TYPESTR "=" ) ) )
4029                 {
4030                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4031                         if ( !strncasecmp( val, "refreshOnly",
4032                                                 STRLENOF("refreshOnly") ) )
4033                         {
4034                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4035                         } else if ( !strncasecmp( val, "refreshAndPersist",
4036                                                 STRLENOF("refreshAndPersist") ) )
4037                         {
4038                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4039                                 si->si_interval = 60;
4040                         } else {
4041                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4042                                         "Error: parse_syncrepl_line: "
4043                                         "unknown sync type \"%s\"", val);
4044                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4045                                 return -1;
4046                         }
4047                         si->si_got |= GOT_TYPE;
4048                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4049                                         STRLENOF( INTERVALSTR "=" ) ) )
4050                 {
4051                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4052                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4053                                 si->si_interval = 0;
4054                         } else if ( strchr( val, ':' ) != NULL ) {
4055                                 char *next, *ptr = val;
4056                                 int dd, hh, mm, ss;
4057
4058                                 dd = strtol( ptr, &next, 10 );
4059                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4060                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4061                                                 "Error: parse_syncrepl_line: "
4062                                                 "invalid interval \"%s\", unable to parse days", val );
4063                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4064                                         return -1;
4065                                 }
4066                                 ptr = next + 1;
4067                                 hh = strtol( ptr, &next, 10 );
4068                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4069                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4070                                                 "Error: parse_syncrepl_line: "
4071                                                 "invalid interval \"%s\", unable to parse hours", val );
4072                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4073                                         return -1;
4074                                 }
4075                                 ptr = next + 1;
4076                                 mm = strtol( ptr, &next, 10 );
4077                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4078                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4079                                                 "Error: parse_syncrepl_line: "
4080                                                 "invalid interval \"%s\", unable to parse minutes", val );
4081                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4082                                         return -1;
4083                                 }
4084                                 ptr = next + 1;
4085                                 ss = strtol( ptr, &next, 10 );
4086                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4087                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4088                                                 "Error: parse_syncrepl_line: "
4089                                                 "invalid interval \"%s\", unable to parse seconds", val );
4090                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4091                                         return -1;
4092                                 }
4093                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4094                         } else {
4095                                 unsigned long   t;
4096
4097                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4098                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4099                                                 "Error: parse_syncrepl_line: "
4100                                                 "invalid interval \"%s\"", val );
4101                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4102                                         return -1;
4103                                 }
4104                                 si->si_interval = (time_t)t;
4105                         }
4106                         if ( si->si_interval < 0 ) {
4107                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4108                                         "Error: parse_syncrepl_line: "
4109                                         "invalid interval \"%ld\"",
4110                                         (long) si->si_interval);
4111                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4112                                 return -1;
4113                         }
4114                         si->si_got |= GOT_INTERVAL;
4115                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4116                                         STRLENOF( RETRYSTR "=" ) ) )
4117                 {
4118                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4119                                 return 1;
4120                         }
4121                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4122                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4123                 {
4124                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4125                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4126                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4127                         {
4128                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4129                                         "invalid manageDSAit 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_MANAGEDSAIT;
4135                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4136                                         STRLENOF( SLIMITSTR "=") ) )
4137                 {
4138                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4139                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4140                                 si->si_slimit = 0;
4141
4142                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4143                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4144                                         "invalid size 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_SLIMIT;
4150                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4151                                         STRLENOF( TLIMITSTR "=" ) ) )
4152                 {
4153                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4154                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4155                                 si->si_tlimit = 0;
4156
4157                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4158                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4159                                         "invalid time limit value \"%s\".\n",
4160                                         val );
4161                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4162                                 return 1;
4163                         }
4164                         si->si_got |= GOT_TLIMIT;
4165                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4166                                         STRLENOF( SYNCDATASTR "=" ) ) )
4167                 {
4168                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4169                         si->si_syncdata = verb_to_mask( val, datamodes );
4170                         si->si_got |= GOT_SYNCDATA;
4171                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4172                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4173                                 "Error: parse_syncrepl_line: "
4174                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4175                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4176                         return -1;
4177                 }
4178                 si->si_got |= GOT_BINDCONF;
4179         }
4180
4181         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4182                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4183                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4184                         si->si_got & GOT_RID ? "" : " "IDSTR,
4185                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4186                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4187                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4188                 return -1;
4189         }
4190
4191         if ( !( si->si_got & GOT_RETRY ) ) {
4192                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4193                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4194                 if ( si->si_retryinterval == NULL ) {
4195                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4196                                 return 1;
4197                         }
4198                 }
4199         }
4200
4201         return 0;
4202 }
4203
4204 static int
4205 add_syncrepl(
4206         ConfigArgs *c )
4207 {
4208         syncinfo_t *si;
4209         int     rc = 0;
4210
4211         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4212                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4213                         "operations required for syncrepl", c->be->be_type );
4214                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4215                 return 1;
4216         }
4217         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4218                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4219                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4220                 return 1;
4221         }
4222         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4223
4224         if ( si == NULL ) {
4225                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4226                 return 1;
4227         }
4228
4229         si->si_bindconf.sb_tls = SB_TLS_OFF;
4230         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4231         si->si_schemachecking = 0;
4232         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4233                 &si->si_filterstr );
4234         si->si_base.bv_val = NULL;
4235         si->si_scope = LDAP_SCOPE_SUBTREE;
4236         si->si_attrsonly = 0;
4237         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4238         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4239         si->si_attrs = NULL;
4240         si->si_allattrs = 0;
4241         si->si_allopattrs = 0;
4242         si->si_exattrs = NULL;
4243         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4244         si->si_interval = 86400;
4245         si->si_retryinterval = NULL;
4246         si->si_retrynum_init = NULL;
4247         si->si_retrynum = NULL;
4248         si->si_manageDSAit = 0;
4249         si->si_tlimit = 0;
4250         si->si_slimit = 0;
4251
4252         si->si_presentlist = NULL;
4253         LDAP_LIST_INIT( &si->si_nonpresentlist );
4254         ldap_pvt_thread_mutex_init( &si->si_mutex );
4255
4256         rc = parse_syncrepl_line( c, si );
4257
4258         if ( rc == 0 ) {
4259                 /* Must be LDAPv3 because we need controls */
4260                 switch ( si->si_bindconf.sb_version ) {
4261                 case 0:
4262                         /* not explicitly set */
4263                         si->si_bindconf.sb_version = LDAP_VERSION3;
4264                         break;
4265                 case 3:
4266                         /* explicitly set */
4267                         break;
4268                 default:
4269                         Debug( LDAP_DEBUG_ANY,
4270                                 "version %d incompatible with syncrepl\n",
4271                                 si->si_bindconf.sb_version, 0, 0 );
4272                         syncinfo_free( si, 0 );
4273                         return 1;
4274                 }
4275
4276                 si->si_be = c->be;
4277                 if ( slapMode & SLAP_SERVER_MODE ) {
4278                         Listener **l = slapd_get_listeners();
4279                         int isMe = 0;
4280
4281                         /* check if URL points to current server. If so, ignore
4282                          * this configuration. We require an exact match. Just
4283                          * in case they really want to do this, they can vary
4284                          * the case of the URL to allow it.
4285                          */
4286                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4287                                 int i;
4288                                 for ( i=0; l[i]; i++ ) {
4289                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4290                                                 isMe = 1;
4291                                                 break;
4292                                         }
4293                                 }
4294                         }
4295
4296                         if ( !isMe ) {
4297                                 init_syncrepl( si );
4298                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4299                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4300                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4301                                         si->si_ridtxt );
4302                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4303                                 if ( si->si_re )
4304                                         rc = config_sync_shadow( c ) ? -1 : 0;
4305                                 else
4306                                         rc = -1;
4307                         }
4308                 } else {
4309                         /* mirrormode still needs to see this flag in tool mode */
4310                         rc = config_sync_shadow( c ) ? -1 : 0;
4311                 }
4312         }
4313
4314 #ifdef HAVE_TLS
4315         /* Use main slapd defaults */
4316         bindconf_tls_defaults( &si->si_bindconf );
4317 #endif
4318         if ( rc < 0 ) {
4319                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4320                 syncinfo_free( si, 0 );
4321                 return 1;
4322         } else {
4323                 Debug( LDAP_DEBUG_CONFIG,
4324                         "Config: ** successfully added syncrepl \"%s\"\n",
4325                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4326                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4327                 if ( c->be->be_syncinfo ) {
4328                         syncinfo_t *sip;
4329
4330                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4331
4332                         // add new syncrepl to end of list (same order as when deleting)
4333                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
4334                         sip->si_next = si;
4335                 } else {
4336                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4337                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4338
4339                         c->be->be_syncinfo = si;
4340                 }
4341
4342                 si->si_next = NULL;
4343
4344                 return 0;
4345         }
4346 }
4347
4348 static void
4349 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4350 {
4351         struct berval bc, uri;
4352         char buf[BUFSIZ*2], *ptr;
4353         ber_len_t len;
4354         int i;
4355 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4356
4357         BER_BVZERO( bv );
4358
4359         /* temporarily inhibit bindconf from printing URI */
4360         uri = si->si_bindconf.sb_uri;
4361         BER_BVZERO( &si->si_bindconf.sb_uri );
4362         si->si_bindconf.sb_version = 0;
4363         bindconf_unparse( &si->si_bindconf, &bc );
4364         si->si_bindconf.sb_uri = uri;
4365         si->si_bindconf.sb_version = LDAP_VERSION3;
4366
4367         ptr = buf;
4368         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4369         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4370                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4371         if ( len >= sizeof( buf ) ) return;
4372         ptr += len;
4373         if ( !BER_BVISNULL( &bc ) ) {
4374                 if ( WHATSLEFT <= bc.bv_len ) {
4375                         free( bc.bv_val );
4376                         return;
4377                 }
4378                 ptr = lutil_strcopy( ptr, bc.bv_val );
4379                 free( bc.bv_val );
4380         }
4381         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4382                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4383                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4384                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4385                 *ptr++ = '"';
4386         }
4387         if ( !BER_BVISNULL( &si->si_base ) ) {
4388                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4389                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4390                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4391                 *ptr++ = '"';
4392         }
4393         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4394                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4395                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4396                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4397                 *ptr++ = '"';
4398         }
4399         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4400                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4401                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4402                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4403                 *ptr++ = '"';
4404         }
4405         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4406                 if ( si->si_scope == scopes[i].val ) {
4407                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4408                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4409                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4410                         break;
4411                 }
4412         }
4413         if ( si->si_attrsonly ) {
4414                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4415                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4416         }
4417         if ( si->si_anfile ) {
4418                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4419                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4420                 ptr = lutil_strcopy( ptr, si->si_anfile );
4421                 *ptr++ = '"';
4422         } else if ( si->si_allattrs || si->si_allopattrs ||
4423                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4424         {
4425                 char *old;
4426
4427                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4428                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4429                 old = ptr;
4430                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4431                 if ( ptr == NULL ) return;
4432                 if ( si->si_allattrs ) {
4433                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4434                         if ( old != ptr ) *ptr++ = ',';
4435                         *ptr++ = '*';
4436                 }
4437                 if ( si->si_allopattrs ) {
4438                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4439                         if ( old != ptr ) *ptr++ = ',';
4440                         *ptr++ = '+';
4441                 }
4442                 *ptr++ = '"';
4443         }
4444         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4445                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4446                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4447                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4448                 if ( ptr == NULL ) return;
4449         }
4450         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4451         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4452         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4453
4454         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4455         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4456         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4457                 "refreshAndPersist" : "refreshOnly" );
4458
4459         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4460                 int dd, hh, mm, ss;
4461
4462                 dd = si->si_interval;
4463                 ss = dd % 60;
4464                 dd /= 60;
4465                 mm = dd % 60;
4466                 dd /= 60;
4467                 hh = dd % 24;
4468                 dd /= 24;
4469                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4470                         INTERVALSTR, dd, hh, mm, ss );
4471                 if ( len >= WHATSLEFT ) return;
4472                 ptr += len;
4473         }
4474
4475         if ( si->si_got & GOT_RETRY ) {
4476                 const char *space = "";
4477                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4478                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4479                 for (i=0; si->si_retryinterval[i]; i++) {
4480                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4481                                 (long) si->si_retryinterval[i] );
4482                         space = " ";
4483                         if ( WHATSLEFT - 1 <= len ) return;
4484                         ptr += len;
4485                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4486                                 *ptr++ = '+';
4487                         else {
4488                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4489                                 if ( WHATSLEFT <= len ) return;
4490                                 ptr += len;
4491                         }
4492                 }
4493                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4494                 *ptr++ = '"';
4495         } else {
4496                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4497         }
4498
4499         if ( si->si_slimit ) {
4500                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4501                 if ( WHATSLEFT <= len ) return;
4502                 ptr += len;
4503         }
4504
4505         if ( si->si_tlimit ) {
4506                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4507                 if ( WHATSLEFT <= len ) return;
4508                 ptr += len;
4509         }
4510
4511         if ( si->si_syncdata ) {
4512                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4513                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4514                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4515                         ptr = lutil_strcopy( ptr, bc.bv_val );
4516                 }
4517         }
4518         bc.bv_len = ptr - buf;
4519         bc.bv_val = buf;
4520         ber_dupbv( bv, &bc );
4521 }
4522
4523 int
4524 syncrepl_config( ConfigArgs *c )
4525 {
4526         if (c->op == SLAP_CONFIG_EMIT) {
4527                 if ( c->be->be_syncinfo ) {
4528                         struct berval bv;
4529                         syncinfo_t *si;
4530
4531                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4532                                 syncrepl_unparse( si, &bv );
4533                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4534                         }
4535                         return 0;
4536                 }
4537                 return 1;
4538         } else if ( c->op == LDAP_MOD_DELETE ) {
4539                 cookie_state *cs = NULL;
4540                 int isrunning = 0;
4541                 if ( c->be->be_syncinfo ) {
4542                         syncinfo_t *si, **sip;
4543                         int i;
4544
4545                         cs = c->be->be_syncinfo->si_cookieState;
4546                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4547                                 si = *sip;
4548                                 if ( c->valx == -1 || i == c->valx ) {
4549                                         *sip = si->si_next;
4550                                         /* If the task is currently active, we have to leave
4551                                          * it running. It will exit on its own. This will only
4552                                          * happen when running on the cn=config DB.
4553                                          */
4554                                         if ( si->si_re ) {
4555                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
4556                                                         isrunning = 1;
4557                                                 } else {
4558                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
4559                                                 }
4560                                         }
4561                                         if ( si->si_re && isrunning ) {
4562                                                 si->si_ctype = 0;
4563                                                 si->si_next = NULL;
4564                                         } else {
4565                                                 syncinfo_free( si, 0 );
4566                                         }
4567                                         if ( i == c->valx )
4568                                                 break;
4569                                 } else {
4570                                         sip = &si->si_next;
4571                                 }
4572                         }
4573                 }
4574                 if ( !c->be->be_syncinfo ) {
4575                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4576                         if ( cs && !isrunning ) {
4577                                 ch_free( cs->cs_sids );
4578                                 ber_bvarray_free( cs->cs_vals );
4579                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4580                                 ch_free( cs );
4581                         }
4582                 }
4583                 return 0;
4584         }
4585         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4586                 Debug(LDAP_DEBUG_ANY, "%s: "
4587                         "syncrepl: database already shadowed.\n",
4588                         c->log, 0, 0);
4589                 return(1);
4590         } else {
4591                 return add_syncrepl( c );
4592         }
4593 }