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 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_syncdata;
  97         int                     si_logstate;
  98         int                     si_conn_setup;
  99         Avlnode                 *si_presentlist;
 100         LDAP                    *si_ld;
 101         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 102         ldap_pvt_thread_mutex_t si_mutex;
 103 } syncinfo_t;
 104
 105 static int syncuuid_cmp( const void *, const void * );
 106 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 107 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 108 static int syncrepl_message_to_op(
 109                                         syncinfo_t *, Operation *, LDAPMessage * );
 110 static int syncrepl_message_to_entry(
 111                                         syncinfo_t *, Operation *, LDAPMessage *,
 112                                         Modifications **, Entry **, int );
 113 static int syncrepl_entry(
 114                                         syncinfo_t *, Operation*, Entry*,
 115                                         Modifications**,int, struct berval*,
 116                                         struct berval *cookieCSN );
 117 static int syncrepl_updateCookie(
 118                                         syncinfo_t *, Operation *, struct berval *,
 119                                         struct sync_cookie * );
 120 static struct berval * slap_uuidstr_from_normalized(
 121                                         struct berval *, struct berval *, void * );
 122
 123 /* callback functions */
 124 static int dn_callback( Operation *, SlapReply * );
 125 static int nonpresent_callback( Operation *, SlapReply * );
 126 static int null_callback( Operation *, SlapReply * );
 127
 128 static AttributeDescription *sync_descs[4];
 129
 130 static const char *
 131 syncrepl_state2str( int state )
 132 {
 133         switch ( state ) {
 134         case LDAP_SYNC_PRESENT:
 135                 return "PRESENT";
 136
 137         case LDAP_SYNC_ADD:
 138                 return "ADD";
 139
 140         case LDAP_SYNC_MODIFY:
 141                 return "MODIFY";
 142
 143         case LDAP_SYNC_DELETE:
 144                 return "DELETE";
 145         }
 146
 147         return "UNKNOWN";
 148 }
 149
 150 static void
 151 init_syncrepl(syncinfo_t *si)
 152 {
 153         int i, j, k, l, n;
 154         char **attrs, **exattrs;
 155
 156         if ( !sync_descs[0] ) {
 157                 sync_descs[0] = slap_schema.si_ad_objectClass;
 158                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 159                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 160                 sync_descs[3] = NULL;
 161         }
 162
 163         if ( si->si_allattrs && si->si_allopattrs )
 164                 attrs = NULL;
 165         else
 166                 attrs = anlist2attrs( si->si_anlist );
 167
 168         if ( attrs ) {
 169                 if ( si->si_allattrs ) {
 170                         i = 0;
 171                         while ( attrs[i] ) {
 172                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 173                                         for ( j = i; attrs[j] != NULL; j++ ) {
 174                                                 if ( j == i )
 175                                                         ch_free( attrs[i] );
 176                                                 attrs[j] = attrs[j+1];
 177                                         }
 178                                 } else {
 179                                         i++;
 180                                 }
 181                         }
 182                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 183                         attrs[i] = ch_strdup("*");
 184                         attrs[i + 1] = NULL;
 185
 186                 } else if ( si->si_allopattrs ) {
 187                         i = 0;
 188                         while ( attrs[i] ) {
 189                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 190                                         for ( j = i; attrs[j] != NULL; j++ ) {
 191                                                 if ( j == i )
 192                                                         ch_free( attrs[i] );
 193                                                 attrs[j] = attrs[j+1];
 194                                         }
 195                                 } else {
 196                                         i++;
 197                                 }
 198                         }
 199                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 200                         attrs[i] = ch_strdup("+");
 201                         attrs[i + 1] = NULL;
 202                 }
 203
 204                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 205                         j = 0;
 206                         while ( attrs[j] ) {
 207                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 208                                         for ( k = j; attrs[k] != NULL; k++ ) {
 209                                                 if ( k == j )
 210                                                         ch_free( attrs[k] );
 211                                                 attrs[k] = attrs[k+1];
 212                                         }
 213                                 } else {
 214                                         j++;
 215                                 }
 216                         }
 217                 }
 218
 219                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 220
 221                 if ( si->si_allopattrs ) {
 222                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 223                 } else {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 225                 }
 226
 227                 /* Add Attributes */
 228                 if ( si->si_allopattrs ) {
 229                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 230                 } else {
 231                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 232                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 233                         }
 234                 }
 235                 attrs[ n ] = NULL;
 236
 237         } else {
 238
 239                 i = 0;
 240                 if ( si->si_allattrs == si->si_allopattrs ) {
 241                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 242                         attrs[i++] = ch_strdup( "*" );
 243                         attrs[i++] = ch_strdup( "+" );
 244                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 245                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 246                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 247                         attrs[i++] = ch_strdup( "*" );
 248                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 249                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 250                         }
 251                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 252                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 253                         attrs[i++] = ch_strdup( "+" );
 254                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 255                 }
 256                 attrs[i] = NULL;
 257         }
 258
 259         si->si_attrs = attrs;
 260
 261         exattrs = anlist2attrs( si->si_exanlist );
 262
 263         if ( exattrs ) {
 264                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 265
 266                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 267                         j = 0;
 268                         while ( exattrs[j] != NULL ) {
 269                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 270                                         ch_free( exattrs[j] );
 271                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 272                                                 exattrs[k] = exattrs[k+1];
 273                                         }
 274                                 } else {
 275                                         j++;
 276                                 }
 277                         }
 278                 }
 279
 280                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 281                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 282                                 ObjectClass     *oc;
 283                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 284                                         k = 0;
 285                                         while ( oc->soc_required[k] ) {
 286                                                 if ( !strcmp( exattrs[i],
 287                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 288                                                         ch_free( exattrs[i] );
 289                                                         for ( l = i; exattrs[l]; l++ ) {
 290                                                                 exattrs[l] = exattrs[l+1];
 291                                                         }
 292                                                 } else {
 293                                                         k++;
 294                                                 }
 295                                         }
 296                                 }
 297                         }
 298                 }
 299
 300                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 301
 302                 if ( i != n )
 303                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 304         }
 305
 306         si->si_exattrs = exattrs;
 307 }
 308
 309 typedef struct logschema {
 310         struct berval ls_dn;
 311         struct berval ls_req;
 312         struct berval ls_mod;
 313         struct berval ls_newRdn;
 314         struct berval ls_delRdn;
 315         struct berval ls_newSup;
 316 } logschema;
 317
 318 static logschema changelog_sc = {
 319         BER_BVC("targetDN"),
 320         BER_BVC("changeType"),
 321         BER_BVC("changes"),
 322         BER_BVC("newRDN"),
 323         BER_BVC("deleteOldRDN"),
 324         BER_BVC("newSuperior")
 325 };
 326
 327 static logschema accesslog_sc = {
 328         BER_BVC("reqDN"),
 329         BER_BVC("reqType"),
 330         BER_BVC("reqMod"),
 331         BER_BVC("reqNewRDN"),
 332         BER_BVC("reqDeleteOldRDN"),
 333         BER_BVC("reqNewSuperior")
 334 };
 335
 336 static int
 337 ldap_sync_search(
 338         syncinfo_t *si,
 339         void *ctx )
 340 {
 341         BerElementBuffer berbuf;
 342         BerElement *ber = (BerElement *)&berbuf;
 343         LDAPControl c[2], *ctrls[3];
 344         ber_int_t       msgid;
 345         int rc;
 346         int rhint;
 347         char *base;
 348         char **attrs, *lattrs[8];
 349         char *filter;
 350         int attrsonly;
 351         int scope;
 352
 353         /* setup LDAP SYNC control */
 354         ber_init2( ber, NULL, LBER_USE_DER );
 355         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 356
 357         /* If we're using a log but we have no state, then fallback to
 358          * normal mode for a full refresh.
 359          */
 360         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 361                 si->si_logstate = SYNCLOG_FALLBACK;
 362         }
 363
 364         /* Use the log parameters if we're in log mode */
 365         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 366                 logschema *ls;
 367                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 368                         ls = &accesslog_sc;
 369                 else
 370                         ls = &changelog_sc;
 371                 lattrs[0] = ls->ls_dn.bv_val;
 372                 lattrs[1] = ls->ls_req.bv_val;
 373                 lattrs[2] = ls->ls_mod.bv_val;
 374                 lattrs[3] = ls->ls_newRdn.bv_val;
 375                 lattrs[4] = ls->ls_delRdn.bv_val;
 376                 lattrs[5] = ls->ls_newSup.bv_val;
 377                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 378                 lattrs[7] = NULL;
 379
 380                 rhint = 0;
 381                 base = si->si_logbase.bv_val;
 382                 filter = si->si_logfilterstr.bv_val;
 383                 attrs = lattrs;
 384                 attrsonly = 0;
 385                 scope = LDAP_SCOPE_SUBTREE;
 386         } else {
 387                 rhint = 1;
 388                 base = si->si_base.bv_val;
 389                 filter = si->si_filterstr.bv_val;
 390                 attrs = si->si_attrs;
 391                 attrsonly = si->si_attrsonly;
 392                 scope = si->si_scope;
 393         }
 394         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 395                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 396         } else {
 397                 si->si_type = si->si_ctype;
 398         }
 399
 400         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 401         {
 402                 ber_printf( ber, "{eOb}",
 403                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 404         } else {
 405                 ber_printf( ber, "{eb}",
 406                         abs(si->si_type), rhint );
 407         }
 408
 409         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 410                 ber_free_buf( ber );
 411                 return rc;
 412         }
 413
 414         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 415         c[0].ldctl_iscritical = si->si_type < 0;
 416         ctrls[0] = &c[0];
 417
 418         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 419                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 420                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 421                 c[1].ldctl_iscritical = 1;
 422                 ctrls[1] = &c[1];
 423                 ctrls[2] = NULL;
 424         } else {
 425                 ctrls[1] = NULL;
 426         }
 427
 428         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 429                 ctrls, NULL, NULL, si->si_slimit, &msgid );
 430         ber_free_buf( ber );
 431         return rc;
 432 }
 433
 434 static int
 435 do_syncrep1(
 436         Operation *op,
 437         syncinfo_t *si )
 438 {
 439         int     rc;
 440         int cmdline_cookie_found = 0;
 441
 442         struct sync_cookie      *sc = NULL;
 443 #ifdef HAVE_TLS
 444         void    *ssl;
 445 #endif
 446
 447         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 448         if ( rc != LDAP_SUCCESS ) {
 449                 goto done;
 450         }
 451         op->o_protocol = LDAP_VERSION3;
 452
 453         /* Set SSF to strongest of TLS, SASL SSFs */
 454         op->o_sasl_ssf = 0;
 455         op->o_tls_ssf = 0;
 456         op->o_transport_ssf = 0;
 457 #ifdef HAVE_TLS
 458         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 459                 == LDAP_SUCCESS && ssl != NULL )
 460         {
 461                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 462         }
 463 #endif /* HAVE_TLS */
 464         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 465         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 466                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 467
 468         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 469
 470         /* We've just started up, or the remote server hasn't sent us
 471          * any meaningful state.
 472          */
 473         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 474                 int i;
 475
 476                 si->si_syncCookie.rid = si->si_rid;
 477                 si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 478                         slap_serverID;
 479
 480                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 481                         if ( si->si_rid == sc->rid ) {
 482                                 cmdline_cookie_found = 1;
 483                                 break;
 484                         }
 485                 }
 486
 487                 if ( cmdline_cookie_found ) {
 488                         /* cookie is supplied in the command line */
 489
 490                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 491
 492                         /* ctxcsn wasn't parsed yet, do it now */
 493                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 494                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 495                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 496                         slap_sync_cookie_free( sc, 1 );
 497                 } else {
 498                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 499                         if ( !si->si_cookieState->cs_num ) {
 500                                 /* get contextCSN shadow replica from database */
 501                                 BerVarray csn = NULL;
 502                                 void *ctx = op->o_tmpmemctx;
 503
 504                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 505                                 op->o_req_dn = op->o_req_ndn;
 506
 507                                 /* try to read stored contextCSN */
 508                                 op->o_tmpmemctx = NULL;
 509                                 backend_attribute( op, NULL, &op->o_req_ndn,
 510                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 511                                 op->o_tmpmemctx = ctx;
 512                                 if ( csn ) {
 513                                         si->si_cookieState->cs_vals = csn;
 514                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 515                                         si->si_cookieState->cs_num = i;
 516                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 517                                 }
 518                         }
 519                         if ( si->si_cookieState->cs_num ) {
 520                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 521                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 522                                         si->si_cookieState->cs_vals, NULL )) {
 523                                         rc = LDAP_NO_MEMORY;
 524                                         goto done;
 525                                 }
 526                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 527                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 528                                         sizeof(int) );
 529                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 530                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 531                         }
 532                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 533                 }
 534
 535                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 536                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 537                         si->si_syncCookie.sid );
 538         } else {
 539                 AttributeName at[2];
 540                 Attribute a = {0};
 541                 Entry e = {0};
 542                 SlapReply rs = {0};
 543                 int i, j, changed = 0;
 544
 545                 /* Look for contextCSN from syncprov overlay. If
 546                  * there's no overlay, this will be a no-op. That means
 547                  * this is a pure consumer, so local changes will not be
 548                  * allowed, and all changes will already be reflected in
 549                  * the cookieState.
 550                  */
 551                 a.a_desc = slap_schema.si_ad_contextCSN;
 552                 e.e_attrs = &a;
 553                 e.e_name = si->si_wbe->be_suffix[0];
 554                 e.e_nname = si->si_wbe->be_nsuffix[0];
 555                 rs.sr_entry = &e;
 556                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 557                 at[0].an_name = a.a_desc->ad_cname;
 558                 at[0].an_desc = a.a_desc;
 559                 BER_BVZERO( &at[1].an_name );
 560                 op->o_req_dn = e.e_name;
 561                 op->o_req_ndn = e.e_nname;
 562
 563                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 564                 rc = backend_operational( op, &rs );
 565                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 566                         int num = a.a_numvals;
 567                         /* check for differences */
 568                         if ( num != si->si_cookieState->cs_num ) {
 569                                 changed = 1;
 570                         } else {
 571                                 for ( i=0; i<num; i++ ) {
 572                                         if ( ber_bvcmp( &a.a_vals[i],
 573                                                 &si->si_cookieState->cs_vals[i] )) {
 574                                                 changed =1;
 575                                                 break;
 576                                         }
 577                                 }
 578                         }
 579                         if ( changed ) {
 580                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 581                                 ch_free( si->si_cookieState->cs_sids );
 582                                 si->si_cookieState->cs_num = num;
 583                                 si->si_cookieState->cs_vals = a.a_vals;
 584                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 585                                         num, NULL );
 586                                 si->si_cookieState->cs_age++;
 587                         } else {
 588                                 ber_bvarray_free( a.a_vals );
 589                         }
 590                         changed = 0;
 591                 }
 592                 /* See if the cookieState has changed due to anything outside
 593                  * this particular consumer. That includes other consumers in
 594                  * the same context, or local changes detected above.
 595                  */
 596                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 597                         si->si_cookieState->cs_age ) {
 598
 599                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 600                                 /* bogus, just dup everything */
 601                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 602                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 603                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 604                                                 si->si_cookieState->cs_vals, NULL );
 605                                         changed = 1;
 606                                         break;
 607                                 }
 608                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 609                                         if ( si->si_syncCookie.sids[i] !=
 610                                                 si->si_cookieState->cs_sids[j] )
 611                                                 continue;
 612                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 613                                                 &si->si_cookieState->cs_vals[j] ))
 614                                                 break;
 615                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 616                                                 &si->si_cookieState->cs_vals[j] );
 617                                         changed = 1;
 618                                         break;
 619                                 }
 620                         }
 621                         if ( changed ) {
 622                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 623                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 624                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 625                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 626                         }
 627                 }
 628                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 629         }
 630
 631         rc = ldap_sync_search( si, op->o_tmpmemctx );
 632
 633         if( rc != LDAP_SUCCESS ) {
 634                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 635                         "ldap_search_ext: %s (%d)\n",
 636                         si->si_ridtxt, ldap_err2string( rc ), rc );
 637         }
 638
 639 done:
 640         if ( rc ) {
 641                 if ( si->si_ld ) {
 642                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 643                         si->si_ld = NULL;
 644                 }
 645         }
 646
 647         return rc;
 648 }
 649
 650 static int
 651 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 652 {
 653         int i, j, match = 0;
 654         const char *text;
 655
 656         *which = 0;
 657
 658         if ( sc1->numcsns < sc2->numcsns ) {
 659                 *which = sc1->numcsns;
 660                 return -1;
 661         }
 662
 663         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 664                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 665                         if ( sc1->sids[i] != sc2->sids[j] )
 666                                 continue;
 667                         value_match( &match, slap_schema.si_ad_entryCSN,
 668                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 669                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 670                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 671                         if ( match < 0 ) {
 672                                 *which = j;
 673                                 return match;
 674                         }
 675                         break;
 676                 }
 677         }
 678         return match;
 679 }
 680
 681 static int
 682 do_syncrep2(
 683         Operation *op,
 684         syncinfo_t *si )
 685 {
 686         LDAPControl     **rctrls = NULL;
 687         LDAPControl     *rctrlp;
 688
 689         BerElementBuffer berbuf;
 690         BerElement      *ber = (BerElement *)&berbuf;
 691
 692         LDAPMessage     *res = NULL;
 693         LDAPMessage     *msg = NULL;
 694
 695         char            *retoid = NULL;
 696         struct berval   *retdata = NULL;
 697
 698         Entry           *entry = NULL;
 699
 700         int             syncstate;
 701         struct berval   syncUUID = BER_BVNULL;
 702         struct sync_cookie      syncCookie = { NULL };
 703         struct sync_cookie      syncCookie_req = { NULL };
 704         struct berval           cookie = BER_BVNULL;
 705
 706         int             rc,
 707                         err = LDAP_SUCCESS;
 708         ber_len_t       len;
 709
 710         struct berval   *psub;
 711         Modifications   *modlist = NULL;
 712
 713         int                             match, m;
 714
 715         struct timeval *tout_p = NULL;
 716         struct timeval tout = { 0, 0 };
 717
 718         int             refreshDeletes = 0;
 719         int             refreshDone = 1;
 720         BerVarray syncUUIDs = NULL;
 721         ber_tag_t si_tag;
 722
 723         if ( slapd_shutdown ) {
 724                 rc = -2;
 725                 goto done;
 726         }
 727
 728         ber_init2( ber, NULL, LBER_USE_DER );
 729         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 730
 731         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 732
 733         psub = &si->si_be->be_nsuffix[0];
 734
 735         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 736
 737         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 738                 tout_p = &tout;
 739         } else {
 740                 tout_p = NULL;
 741         }
 742
 743         while ( ( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 744                 tout_p, &res ) ) > 0 )
 745         {
 746                 if ( slapd_shutdown ) {
 747                         rc = -2;
 748                         goto done;
 749                 }
 750                 for( msg = ldap_first_message( si->si_ld, res );
 751                         msg != NULL;
 752                         msg = ldap_next_message( si->si_ld, msg ) )
 753                 {
 754                         if ( slapd_shutdown ) {
 755                                 rc = -2;
 756                                 goto done;
 757                         }
 758                         switch( ldap_msgtype( msg ) ) {
 759                         case LDAP_RES_SEARCH_ENTRY:
 760                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 761                                 /* we can't work without the control */
 762                                 rctrlp = NULL;
 763                                 if ( rctrls ) {
 764                                         LDAPControl **next;
 765                                         /* NOTE: make sure we use the right one;
 766                                          * a better approach would be to run thru
 767                                          * the whole list and take care of all */
 768                                         rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 769                                         if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 770                                         {
 771                                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 772                                                         "got search entry with multiple "
 773                                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 774                                                 rc = -1;
 775                                                 goto done;
 776                                         }
 777                                 }
 778                                 if ( rctrlp == NULL ) {
 779                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 780                                                 "got search entry without "
 781                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 782                                         rc = -1;
 783                                         goto done;
 784                                 }
 785                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 786                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 787                                 /* FIXME: what if syncUUID is NULL or empty?
 788                                  * (happens with back-sql...) */
 789                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 790                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 791                                                 "got empty syncUUID with LDAP_SYNC_%s\n",
 792                                                 si->si_ridtxt,
 793                                                 syncrepl_state2str( syncstate ), 0 );
 794                                         ldap_controls_free( rctrls );
 795                                         rc = -1;
 796                                         goto done;
 797                                 }
 798                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 799                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 800
 801                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 802                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 803
 804                                         if ( !BER_BVISNULL( &cookie ) ) {
 805                                                 ch_free( syncCookie.octet_str.bv_val );
 806                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 807                                         }
 808                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 809                                         {
 810                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 811                                         }
 812                                 }
 813                                 rc = 0;
 814                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 815                                         modlist = NULL;
 816                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 817                                                 syncCookie.ctxcsn )
 818                                         {
 819                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 820                                         }
 821                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 822                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 823                                 {
 824                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 825                                                 syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 826                                                 syncCookie.ctxcsn )
 827                                         {
 828                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 829                                         }
 830                                 }
 831                                 ldap_controls_free( rctrls );
 832                                 if ( modlist ) {
 833                                         slap_mods_free( modlist, 1 );
 834                                 }
 835                                 if ( rc )
 836                                         goto done;
 837                                 break;
 838
 839                         case LDAP_RES_SEARCH_REFERENCE:
 840                                 Debug( LDAP_DEBUG_ANY,
 841                                         "do_syncrep2: %s reference received error\n",
 842                                         si->si_ridtxt, 0, 0 );
 843                                 break;
 844
 845                         case LDAP_RES_SEARCH_RESULT:
 846                                 Debug( LDAP_DEBUG_SYNC,
 847                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 848                                         si->si_ridtxt, 0, 0 );
 849                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 850                                         &rctrls, 0 );
 851 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 852                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 853                                         /* map old result code to registered code */
 854                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 855                                 }
 856 #endif
 857                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 858                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 859                                                 si->si_logstate = SYNCLOG_FALLBACK;
 860                                         }
 861                                         rc = err;
 862                                         goto done;
 863                                 }
 864                                 if ( rctrls ) {
 865                                         rctrlp = *rctrls;
 866                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 867
 868                                         ber_scanf( ber, "{" /*"}"*/);
 869                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 870                                                 ber_scanf( ber, "m", &cookie );
 871
 872                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 873                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 874
 875                                                 if ( !BER_BVISNULL( &cookie ) ) {
 876                                                         ch_free( syncCookie.octet_str.bv_val );
 877                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 878                                                 }
 879                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 880                                                 {
 881                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 882                                                 }
 883                                         }
 884                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 885                                         {
 886                                                 ber_scanf( ber, "b", &refreshDeletes );
 887                                         }
 888                                         ber_scanf( ber, /*"{"*/ "}" );
 889                                 }
 890                                 if ( !syncCookie.ctxcsn ) {
 891                                         match = 1;
 892                                 } else if ( !syncCookie_req.ctxcsn ) {
 893                                         match = -1;
 894                                         m = 0;
 895                                 } else {
 896                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 897                                 }
 898                                 if ( rctrls ) {
 899                                         ldap_controls_free( rctrls );
 900                                 }
 901                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 902                                         /* FIXME : different error behaviors according to
 903                                          *      1) err code : LDAP_BUSY ...
 904                                          *      2) on err policy : stop service, stop sync, retry
 905                                          */
 906                                         if ( refreshDeletes == 0 && match < 0 &&
 907                                                 err == LDAP_SUCCESS )
 908                                         {
 909                                                 syncrepl_del_nonpresent( op, si, NULL,
 910                                                         &syncCookie.ctxcsn[m] );
 911                                         } else {
 912                                                 avl_free( si->si_presentlist, ch_free );
 913                                                 si->si_presentlist = NULL;
 914                                         }
 915                                 }
 916                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 917                                 {
 918                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 919                                 }
 920                                 if ( err == LDAP_SUCCESS
 921                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 922                                         si->si_logstate = SYNCLOG_LOGGING;
 923                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 924                                 } else {
 925                                         rc = -2;
 926                                 }
 927                                 goto done;
 928                                 break;
 929
 930                         case LDAP_RES_INTERMEDIATE:
 931                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 932                                         &retoid, &retdata, NULL, 0 );
 933                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 934                                         ber_init2( ber, retdata, LBER_USE_DER );
 935
 936                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 937                                         ber_tag_t tag;
 938                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 939                                                 Debug( LDAP_DEBUG_SYNC,
 940                                                         "do_syncrep2: %s %s - %s\n",
 941                                                         si->si_ridtxt,
 942                                                         "LDAP_RES_INTERMEDIATE",
 943                                                         "NEW_COOKIE" );
 944                                                 ber_scanf( ber, "tm", &tag, &cookie );
 945                                                 break;
 946                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 947                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 948                                                 Debug( LDAP_DEBUG_SYNC,
 949                                                         "do_syncrep2: %s %s - %s\n",
 950                                                         si->si_ridtxt,
 951                                                         "LDAP_RES_INTERMEDIATE",
 952                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 953                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 954                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 955                                                         si->si_refreshDelete = 1;
 956                                                 } else {
 957                                                         si->si_refreshPresent = 1;
 958                                                 }
 959                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 960                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 961                                                 {
 962                                                         ber_scanf( ber, "m", &cookie );
 963
 964                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 965                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 966
 967                                                         if ( !BER_BVISNULL( &cookie ) ) {
 968                                                                 ch_free( syncCookie.octet_str.bv_val );
 969                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 970                                                         }
 971                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 972                                                         {
 973                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 974                                                         }
 975                                                 }
 976                                                 if ( ber_peek_tag( ber, &len ) ==
 977                                                         LDAP_TAG_REFRESHDONE )
 978                                                 {
 979                                                         ber_scanf( ber, "b", &refreshDone );
 980                                                 }
 981                                                 ber_scanf( ber, /*"{"*/ "}" );
 982                                                 break;
 983                                         case LDAP_TAG_SYNC_ID_SET:
 984                                                 Debug( LDAP_DEBUG_SYNC,
 985                                                         "do_syncrep2: %s %s - %s\n",
 986                                                         si->si_ridtxt,
 987                                                         "LDAP_RES_INTERMEDIATE",
 988                                                         "SYNC_ID_SET" );
 989                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 990                                                 if ( ber_peek_tag( ber, &len ) ==
 991                                                         LDAP_TAG_SYNC_COOKIE )
 992                                                 {
 993                                                         ber_scanf( ber, "m", &cookie );
 994
 995                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 996                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 997
 998                                                         if ( !BER_BVISNULL( &cookie ) ) {
 999                                                                 ch_free( syncCookie.octet_str.bv_val );
1000                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1001                                                         }
1002                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1003                                                         {
1004                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1005                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
1006                                                         }
1007                                                 }
1008                                                 if ( ber_peek_tag( ber, &len ) ==
1009                                                         LDAP_TAG_REFRESHDELETES )
1010                                                 {
1011                                                         ber_scanf( ber, "b", &refreshDeletes );
1012                                                 }
1013                                                 ber_scanf( ber, "[W]", &syncUUIDs );
1014                                                 ber_scanf( ber, /*"{"*/ "}" );
1015                                                 if ( refreshDeletes ) {
1016                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
1017                                                                 &syncCookie.ctxcsn[m] );
1018                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1019                                                 } else {
1020                                                         int i;
1021                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1022                                                                 (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1023                                                                 slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1024                                                         }
1025                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1026                                                 }
1027                                                 slap_sync_cookie_free( &syncCookie, 0 );
1028                                                 break;
1029                                         default:
1030                                                 Debug( LDAP_DEBUG_ANY,
1031                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1032                                                         si->si_ridtxt, (long) si_tag, 0 );
1033                                                 ldap_memfree( retoid );
1034                                                 ber_bvfree( retdata );
1035                                                 continue;
1036                                         }
1037
1038                                         if ( !syncCookie.ctxcsn ) {
1039                                                 match = 1;
1040                                         } else if ( !syncCookie_req.ctxcsn ) {
1041                                                 match = -1;
1042                                                 m = 0;
1043                                         } else {
1044                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1045                                         }
1046
1047                                         if ( match < 0 ) {
1048                                                 if ( si->si_refreshPresent == 1 ) {
1049                                                         syncrepl_del_nonpresent( op, si, NULL,
1050                                                                 &syncCookie.ctxcsn[m] );
1051                                                 }
1052
1053                                                 if ( syncCookie.ctxcsn )
1054                                                 {
1055                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1056                                                 }
1057                                         }
1058
1059                                         ldap_memfree( retoid );
1060                                         ber_bvfree( retdata );
1061                                         break;
1062
1063                                 } else {
1064                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1065                                                 "unknown intermediate response (%d)\n",
1066                                                 si->si_ridtxt, rc, 0 );
1067                                         ldap_memfree( retoid );
1068                                         ber_bvfree( retdata );
1069                                         break;
1070                                 }
1071                                 break;
1072
1073                         default:
1074                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1075                                         "unknown message (0x%02lx)\n",
1076                                         si->si_ridtxt,
1077                                         (unsigned long)ldap_msgtype( msg ), 0 );
1078                                 break;
1079
1080                         }
1081                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1082                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1083                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1084                                 slap_sync_cookie_free( &syncCookie, 0 );
1085                         }
1086                 }
1087                 ldap_msgfree( res );
1088                 res = NULL;
1089         }
1090
1091         if ( rc == -1 ) {
1092                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1093                 err = rc;
1094         }
1095
1096 done:
1097         if ( err != LDAP_SUCCESS ) {
1098                 Debug( LDAP_DEBUG_ANY,
1099                         "do_syncrep2: %s (%d) %s\n",
1100                         si->si_ridtxt, err, ldap_err2string( err ) );
1101         }
1102
1103         slap_sync_cookie_free( &syncCookie, 0 );
1104         slap_sync_cookie_free( &syncCookie_req, 0 );
1105
1106         if ( res ) ldap_msgfree( res );
1107
1108         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1109                 if ( si->si_conn_setup ) {
1110                         ber_socket_t s;
1111                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1112                         connection_client_stop( s );
1113                         si->si_conn_setup = 0;
1114                 }
1115                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1116                 si->si_ld = NULL;
1117         }
1118
1119         return rc;
1120 }
1121
1122 static void *
1123 do_syncrepl(
1124         void    *ctx,
1125         void    *arg )
1126 {
1127         struct re_s* rtask = arg;
1128         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1129         Connection conn = {0};
1130         OperationBuffer opbuf;
1131         Operation *op;
1132         int rc = LDAP_SUCCESS;
1133         int dostop = 0;
1134         ber_socket_t s;
1135         int i, defer = 1, fail = 0;
1136         Backend *be;
1137
1138         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1139
1140         if ( si == NULL )
1141                 return NULL;
1142
1143         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1144
1145         switch( abs( si->si_type ) ) {
1146         case LDAP_SYNC_REFRESH_ONLY:
1147         case LDAP_SYNC_REFRESH_AND_PERSIST:
1148                 break;
1149         default:
1150                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1151                 return NULL;
1152         }
1153
1154         if ( slapd_shutdown ) {
1155                 if ( si->si_ld ) {
1156                         if ( si->si_conn_setup ) {
1157                                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1158                                 connection_client_stop( s );
1159                                 si->si_conn_setup = 0;
1160                         }
1161                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1162                         si->si_ld = NULL;
1163                 }
1164                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1165                 return NULL;
1166         }
1167
1168         connection_fake_init( &conn, &opbuf, ctx );
1169         op = &opbuf.ob_op;
1170
1171         /* use global malloc for now */
1172         op->o_tmpmemctx = NULL;
1173         op->o_tmpmfuncs = &ch_mfuncs;
1174
1175         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1176         op->o_bd = be = si->si_be;
1177         op->o_dn = op->o_bd->be_rootdn;
1178         op->o_ndn = op->o_bd->be_rootndn;
1179         if ( !si->si_schemachecking )
1180                 op->o_no_schema_check = 1;
1181
1182         /* If we're glued, send writes through the glue parent */
1183         if ( !si->si_wbe ) {
1184                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1185                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1186                 } else {
1187                         si->si_wbe = be;
1188                 }
1189         }
1190
1191         /* Establish session, do search */
1192         if ( !si->si_ld ) {
1193                 si->si_refreshDelete = 0;
1194                 si->si_refreshPresent = 0;
1195                 rc = do_syncrep1( op, si );
1196         }
1197
1198 reload:
1199         /* Process results */
1200         if ( rc == LDAP_SUCCESS ) {
1201                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1202
1203                 rc = do_syncrep2( op, si );
1204                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1205                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1206                         goto reload;
1207                 }
1208
1209                 /* We got deleted while running on cn=config */
1210                 if ( !si->si_ctype ) {
1211                         if ( si->si_conn_setup )
1212                                 dostop = 1;
1213                         rc = -1;
1214                 }
1215
1216                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1217                         /* If we succeeded, enable the connection for further listening.
1218                          * If we failed, tear down the connection and reschedule.
1219                          */
1220                         if ( rc == LDAP_SUCCESS ) {
1221                                 if ( si->si_conn_setup ) {
1222                                         connection_client_enable( s );
1223                                 } else {
1224                                         rc = connection_client_setup( s, do_syncrepl, arg );
1225                                         if ( rc == 0 )
1226                                                 si->si_conn_setup = 1;
1227                                 }
1228                         } else if ( si->si_conn_setup ) {
1229                                 dostop = 1;
1230                         }
1231                 } else {
1232                         if ( rc == -2 ) rc = 0;
1233                 }
1234         }
1235
1236         /* At this point, we have 4 cases:
1237          * 1) for any hard failure, give up and remove this task
1238          * 2) for ServerDown, reschedule this task to run
1239          * 3) for Refresh and Success, reschedule to run
1240          * 4) for Persist and Success, reschedule to defer
1241          */
1242         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1243
1244         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1245                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1246         }
1247
1248         if ( dostop ) {
1249                 connection_client_stop( s );
1250         }
1251
1252         if ( rc == LDAP_SUCCESS ) {
1253                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1254                         defer = 0;
1255                 }
1256                 rtask->interval.tv_sec = si->si_interval;
1257                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1258                 if ( si->si_retrynum ) {
1259                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1260                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1261                         }
1262                         si->si_retrynum[i] = RETRYNUM_TAIL;
1263                 }
1264         } else {
1265                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1266                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1267                                 break;
1268                 }
1269
1270                 if ( !si->si_ctype
1271                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1272                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1273                         fail = RETRYNUM_TAIL;
1274                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1275                         if ( si->si_retrynum[i] > 0 )
1276                                 si->si_retrynum[i]--;
1277                         fail = si->si_retrynum[i];
1278                         rtask->interval.tv_sec = si->si_retryinterval[i];
1279                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1280                         slap_wake_listener();
1281                 }
1282         }
1283
1284         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1285         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1286
1287         if ( rc ) {
1288                 if ( fail == RETRYNUM_TAIL ) {
1289                         Debug( LDAP_DEBUG_ANY,
1290                                 "do_syncrepl: %s quitting\n",
1291                                 si->si_ridtxt, 0, 0 );
1292                 } else if ( fail > 0 ) {
1293                         Debug( LDAP_DEBUG_ANY,
1294                                 "do_syncrepl: %s retrying (%d retries left)\n",
1295                                 si->si_ridtxt, fail, 0 );
1296                 } else {
1297                         Debug( LDAP_DEBUG_ANY,
1298                                 "do_syncrepl: %s retrying\n",
1299                                 si->si_ridtxt, 0, 0 );
1300                 }
1301         }
1302
1303         /* Do final delete cleanup */
1304         if ( !si->si_ctype ) {
1305                 cookie_state *cs = NULL;
1306                 syncinfo_t **sip;
1307
1308                 cs = be->be_syncinfo->si_cookieState;
1309                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1310                 *sip = si->si_next;
1311                 syncinfo_free( si, 0 );
1312                 if ( !be->be_syncinfo ) {
1313                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1314                         if ( cs ) {
1315                                 ch_free( cs->cs_sids );
1316                                 ber_bvarray_free( cs->cs_vals );
1317                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1318                                 ch_free( cs );
1319                         }
1320                 }
1321         }
1322         return NULL;
1323 }
1324
1325 static slap_verbmasks modops[] = {
1326         { BER_BVC("add"), LDAP_REQ_ADD },
1327         { BER_BVC("delete"), LDAP_REQ_DELETE },
1328         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1329         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1330         { BER_BVNULL, 0 }
1331 };
1332
1333 static Modifications *
1334 syncrepl_accesslog_mods(
1335         syncinfo_t *si,
1336         struct berval *vals
1337 )
1338 {
1339         char *colon;
1340         const char *text;
1341         AttributeDescription *ad;
1342         struct berval bv, bv2;
1343         short op;
1344         Modifications *mod = NULL, *modlist = NULL, **modtail;
1345         int i;
1346
1347         modtail = &modlist;
1348
1349         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1350                 ad = NULL;
1351                 bv = vals[i];
1352
1353                 colon = ber_bvchr( &bv, ':' );
1354                 if ( !colon ) {
1355                         /* Invalid */
1356                         continue;
1357                 }
1358
1359                 bv.bv_len = colon - bv.bv_val;
1360                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1361                         /* Invalid */
1362                         continue;
1363                 }
1364
1365                 /* Ignore dynamically generated attrs */
1366                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1367                         continue;
1368                 }
1369
1370                 /* Ignore excluded attrs */
1371                 if ( ldap_charray_inlist( si->si_exattrs,
1372                         ad->ad_type->sat_cname.bv_val ) )
1373                 {
1374                         continue;
1375                 }
1376
1377                 switch(colon[1]) {
1378                 case '+':       op = LDAP_MOD_ADD; break;
1379                 case '-':       op = LDAP_MOD_DELETE; break;
1380                 case '=':       op = LDAP_MOD_REPLACE; break;
1381                 case '#':       op = LDAP_MOD_INCREMENT; break;
1382                 default:        continue;
1383                 }
1384
1385                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1386                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1387                         mod->sml_flags = 0;
1388                         mod->sml_op = op;
1389                         mod->sml_next = NULL;
1390                         mod->sml_desc = ad;
1391                         mod->sml_type = ad->ad_cname;
1392                         mod->sml_values = NULL;
1393                         mod->sml_nvalues = NULL;
1394                         mod->sml_numvals = 0;
1395
1396                         *modtail = mod;
1397                         modtail = &mod->sml_next;
1398                 }
1399                 if ( colon[2] == ' ' ) {
1400                         bv.bv_val = colon + 3;
1401                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1402                         ber_dupbv( &bv2, &bv );
1403                         ber_bvarray_add( &mod->sml_values, &bv2 );
1404                         mod->sml_numvals++;
1405                 }
1406         }
1407         return modlist;
1408 }
1409
1410 static Modifications *
1411 syncrepl_changelog_mods(
1412         syncinfo_t *si,
1413         struct berval *vals
1414 )
1415 {
1416         return NULL;    /* FIXME */
1417 }
1418
1419 static int
1420 syncrepl_message_to_op(
1421         syncinfo_t      *si,
1422         Operation       *op,
1423         LDAPMessage     *msg
1424 )
1425 {
1426         BerElement      *ber = NULL;
1427         Modifications   *modlist = NULL;
1428         logschema *ls;
1429         SlapReply rs = { REP_RESULT };
1430         slap_callback cb = { NULL, null_callback, NULL, NULL };
1431
1432         const char      *text;
1433         char txtbuf[SLAP_TEXT_BUFLEN];
1434         size_t textlen = sizeof txtbuf;
1435
1436         struct berval   bdn, dn = BER_BVNULL, ndn;
1437         struct berval   bv, *bvals = NULL;
1438         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1439                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1440                 psup = BER_BVNULL, nsup = BER_BVNULL;
1441         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1442
1443         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1444                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1445                         "Message type should be entry (%d)",
1446                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1447                 return -1;
1448         }
1449
1450         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1451                 ls = &accesslog_sc;
1452         else
1453                 ls = &changelog_sc;
1454
1455         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1456
1457         if ( rc != LDAP_SUCCESS ) {
1458                 Debug( LDAP_DEBUG_ANY,
1459                         "syncrepl_message_to_op: %s dn get failed (%d)",
1460                         si->si_ridtxt, rc, 0 );
1461                 return rc;
1462         }
1463
1464         op->o_tag = LBER_DEFAULT;
1465         op->o_bd = si->si_wbe;
1466
1467         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1468                 == LDAP_SUCCESS ) {
1469                 if ( bv.bv_val == NULL )
1470                         break;
1471
1472                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1473                         bdn = bvals[0];
1474                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1475                         ber_dupbv( &op->o_req_dn, &dn );
1476                         ber_dupbv( &op->o_req_ndn, &ndn );
1477                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1478                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1479                         freeReqDn = 1;
1480                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1481                         int i = verb_to_mask( bvals[0].bv_val, modops );
1482                         if ( i < 0 ) {
1483                                 Debug( LDAP_DEBUG_ANY,
1484                                         "syncrepl_message_to_op: %s unknown op %s",
1485                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1486                                 ch_free( bvals );
1487                                 rc = -1;
1488                                 goto done;
1489                         }
1490                         op->o_tag = modops[i].mask;
1491                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1492                         /* Parse attribute into modlist */
1493                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1494                                 modlist = syncrepl_accesslog_mods( si, bvals );
1495                         } else {
1496                                 modlist = syncrepl_changelog_mods( si, bvals );
1497                         }
1498                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1499                         rdn = bvals[0];
1500                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1501                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1502                                 deleteOldRdn = 1;
1503                         }
1504                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1505                         sup = bvals[0];
1506                 } else if ( !ber_bvstrcasecmp( &bv,
1507                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1508                 {
1509                         slap_queue_csn( op, bvals );
1510                 }
1511                 ch_free( bvals );
1512         }
1513
1514         /* If we didn't get a mod type or a target DN, bail out */
1515         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1516                 rc = -1;
1517                 goto done;
1518         }
1519
1520         op->o_callback = &cb;
1521         slap_op_time( &op->o_time, &op->o_tincr );
1522
1523         switch( op->o_tag ) {
1524         case LDAP_REQ_ADD:
1525         case LDAP_REQ_MODIFY:
1526                 /* If we didn't get required data, bail */
1527                 if ( !modlist ) goto done;
1528
1529                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1530
1531                 if ( rc != LDAP_SUCCESS ) {
1532                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1533                                 "mods check (%s)\n",
1534                                 si->si_ridtxt, text, 0 );
1535                         goto done;
1536                 }
1537
1538                 if ( op->o_tag == LDAP_REQ_ADD ) {
1539                         Entry *e = entry_alloc();
1540                         op->ora_e = e;
1541                         op->ora_e->e_name = op->o_req_dn;
1542                         op->ora_e->e_nname = op->o_req_ndn;
1543                         freeReqDn = 0;
1544                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1545                         if( rc != LDAP_SUCCESS ) {
1546                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1547                                 "mods2entry (%s)\n",
1548                                         si->si_ridtxt, text, 0 );
1549                         } else {
1550                                 rc = op->o_bd->be_add( op, &rs );
1551                                 Debug( LDAP_DEBUG_SYNC,
1552                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1553                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1554                         }
1555                         if ( e == op->ora_e )
1556                                 be_entry_release_w( op, op->ora_e );
1557                 } else {
1558                         op->orm_modlist = modlist;
1559                         op->o_bd = si->si_wbe;
1560                         rc = op->o_bd->be_modify( op, &rs );
1561                         modlist = op->orm_modlist;
1562                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1563                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1564                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1565                         op->o_bd = si->si_be;
1566                 }
1567                 break;
1568         case LDAP_REQ_MODRDN:
1569                 if ( BER_BVISNULL( &rdn ) ) goto done;
1570
1571                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1572                         goto done;
1573                 }
1574                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1575                         goto done;
1576                 }
1577                 if ( !BER_BVISNULL( &sup ) ) {
1578                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1579                                 goto done;
1580                         }
1581                         op->orr_newSup = &psup;
1582                         op->orr_nnewSup = &nsup;
1583                 } else {
1584                         op->orr_newSup = NULL;
1585                         op->orr_nnewSup = NULL;
1586                 }
1587                 op->orr_newrdn = prdn;
1588                 op->orr_nnewrdn = nrdn;
1589                 op->orr_deleteoldrdn = deleteOldRdn;
1590                 op->orr_modlist = NULL;
1591                 if ( slap_modrdn2mods( op, &rs ) ) {
1592                         goto done;
1593                 }
1594
1595                 /* Append modlist for operational attrs */
1596                 {
1597                         Modifications *m;
1598
1599                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1600                                 ;
1601                         m->sml_next = modlist;
1602                         modlist = NULL;
1603                 }
1604                 rc = op->o_bd->be_modrdn( op, &rs );
1605                 slap_mods_free( op->orr_modlist, 1 );
1606                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1607                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1608                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1609                 break;
1610         case LDAP_REQ_DELETE:
1611                 rc = op->o_bd->be_delete( op, &rs );
1612                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1613                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1614                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1615                 break;
1616         }
1617 done:
1618         slap_graduate_commit_csn( op );
1619         op->o_bd = si->si_be;
1620         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1621         BER_BVZERO( &op->o_csn );
1622         if ( modlist ) {
1623                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1624         }
1625         if ( !BER_BVISNULL( &rdn ) ) {
1626                 if ( !BER_BVISNULL( &nsup ) ) {
1627                         ch_free( nsup.bv_val );
1628                 }
1629                 if ( !BER_BVISNULL( &psup ) ) {
1630                         ch_free( psup.bv_val );
1631                 }
1632                 if ( !BER_BVISNULL( &nrdn ) ) {
1633                         ch_free( nrdn.bv_val );
1634                 }
1635                 if ( !BER_BVISNULL( &prdn ) ) {
1636                         ch_free( prdn.bv_val );
1637                 }
1638         }
1639         if ( freeReqDn ) {
1640                 ch_free( op->o_req_ndn.bv_val );
1641                 ch_free( op->o_req_dn.bv_val );
1642         }
1643         ber_free( ber, 0 );
1644         return rc;
1645 }
1646
1647 static int
1648 syncrepl_message_to_entry(
1649         syncinfo_t      *si,
1650         Operation       *op,
1651         LDAPMessage     *msg,
1652         Modifications   **modlist,
1653         Entry                   **entry,
1654         int             syncstate
1655 )
1656 {
1657         Entry           *e = NULL;
1658         BerElement      *ber = NULL;
1659         Modifications   tmp;
1660         Modifications   *mod;
1661         Modifications   **modtail = modlist;
1662
1663         const char      *text;
1664         char txtbuf[SLAP_TEXT_BUFLEN];
1665         size_t textlen = sizeof txtbuf;
1666
1667         struct berval   bdn = BER_BVNULL, dn, ndn;
1668         int             rc, is_ctx;
1669
1670         *modlist = NULL;
1671
1672         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1673                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1674                         "Message type should be entry (%d)",
1675                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1676                 return -1;
1677         }
1678
1679         op->o_tag = LDAP_REQ_ADD;
1680
1681         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1682         if ( rc != LDAP_SUCCESS ) {
1683                 Debug( LDAP_DEBUG_ANY,
1684                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1685                         si->si_ridtxt, rc, 0 );
1686                 return rc;
1687         }
1688
1689         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1690                 /* NOTE: this could be done even before decoding the DN,
1691                  * although encoding errors wouldn't be detected */
1692                 rc = LDAP_SUCCESS;
1693                 goto done;
1694         }
1695
1696         if ( entry == NULL ) {
1697                 return -1;
1698         }
1699
1700         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1701         ber_dupbv( &op->o_req_dn, &dn );
1702         ber_dupbv( &op->o_req_ndn, &ndn );
1703         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1704         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1705
1706         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1707
1708         e = entry_alloc();
1709         e->e_name = op->o_req_dn;
1710         e->e_nname = op->o_req_ndn;
1711
1712         while ( ber_remaining( ber ) ) {
1713                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1714                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1715                 {
1716                         break;
1717                 }
1718
1719                 /* Drop all updates to the contextCSN of the context entry
1720                  * (ITS#4622, etc.)
1721                  */
1722                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1723                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1724                         ber_bvarray_free( tmp.sml_values );
1725                         continue;
1726                 }
1727
1728                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1729
1730                 mod->sml_op = LDAP_MOD_REPLACE;
1731                 mod->sml_flags = 0;
1732                 mod->sml_next = NULL;
1733                 mod->sml_desc = NULL;
1734                 mod->sml_type = tmp.sml_type;
1735                 mod->sml_values = tmp.sml_values;
1736                 mod->sml_nvalues = NULL;
1737                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1738
1739                 *modtail = mod;
1740                 modtail = &mod->sml_next;
1741         }
1742
1743         if ( *modlist == NULL ) {
1744                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1745                         si->si_ridtxt, 0, 0 );
1746                 rc = -1;
1747                 goto done;
1748         }
1749
1750         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1751
1752         if ( rc != LDAP_SUCCESS ) {
1753                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1754                         si->si_ridtxt, text, 0 );
1755                 goto done;
1756         }
1757
1758         /* Strip out dynamically generated attrs */
1759         for ( modtail = modlist; *modtail ; ) {
1760                 mod = *modtail;
1761                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1762                         *modtail = mod->sml_next;
1763                         slap_mod_free( &mod->sml_mod, 0 );
1764                         ch_free( mod );
1765                 } else {
1766                         modtail = &mod->sml_next;
1767                 }
1768         }
1769
1770         /* Strip out attrs in exattrs list */
1771         for ( modtail = modlist; *modtail ; ) {
1772                 mod = *modtail;
1773                 if ( ldap_charray_inlist( si->si_exattrs,
1774                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1775                 {
1776                         *modtail = mod->sml_next;
1777                         slap_mod_free( &mod->sml_mod, 0 );
1778                         ch_free( mod );
1779                 } else {
1780                         modtail = &mod->sml_next;
1781                 }
1782         }
1783
1784         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1785         if( rc != LDAP_SUCCESS ) {
1786                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1787                         si->si_ridtxt, text, 0 );
1788         }
1789
1790 done:
1791         ber_free( ber, 0 );
1792         if ( rc != LDAP_SUCCESS ) {
1793                 if ( e ) {
1794                         entry_free( e );
1795                         e = NULL;
1796                 }
1797         }
1798         if ( entry )
1799                 *entry = e;
1800
1801         return rc;
1802 }
1803
1804 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1805
1806 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1807  * entry if a previous refresh was interrupted before sending us a new
1808  * context state. We try to compare the new entry to the existing entry
1809  * and ignore the new entry if they are the same.
1810  *
1811  * Also, we may get an update where the entryDN has changed, due to
1812  * a ModDn on the provider. We detect this as well, so we can issue
1813  * the corresponding operation locally.
1814  *
1815  * In the case of a modify, we get a list of all the attributes
1816  * in the original entry. Rather than deleting the entry and re-adding it,
1817  * we issue a Modify request that deletes all the attributes and adds all
1818  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1819  * entry.
1820  *
1821  * We otherwise distinguish ModDN from Modify; in the case of
1822  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1823  * operational attributes from the entry, and do a regular ModDN.
1824  */
1825 typedef struct dninfo {
1826         Entry *new_entry;
1827         struct berval dn;
1828         struct berval ndn;
1829         int renamed;    /* Was an existing entry renamed? */
1830         int delOldRDN;  /* Was old RDN deleted? */
1831         Modifications **modlist;        /* the modlist we received */
1832         Modifications *mods;    /* the modlist we compared */
1833 } dninfo;
1834
1835 /* return 1 if inserted, 0 otherwise */
1836 static int
1837 avl_presentlist_insert(
1838         syncinfo_t* si,
1839         struct berval *syncUUID )
1840 {
1841         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1842
1843         syncuuid_bv->bv_len = syncUUID->bv_len;
1844         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1845         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1846         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1847
1848         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1849                 syncuuid_cmp, avl_dup_error ) )
1850         {
1851                 ch_free( syncuuid_bv );
1852                 return 0;
1853         }
1854
1855         return 1;
1856 }
1857
1858 static int
1859 syncrepl_entry(
1860         syncinfo_t* si,
1861         Operation *op,
1862         Entry* entry,
1863         Modifications** modlist,
1864         int syncstate,
1865         struct berval* syncUUID,
1866         struct berval* syncCSN )
1867 {
1868         Backend *be = op->o_bd;
1869         slap_callback   cb = { NULL, NULL, NULL, NULL };
1870         int syncuuid_inserted = 0;
1871         struct berval   syncUUID_strrep = BER_BVNULL;
1872
1873         SlapReply       rs_search = {REP_RESULT};
1874         SlapReply       rs_delete = {REP_RESULT};
1875         SlapReply       rs_add = {REP_RESULT};
1876         SlapReply       rs_modify = {REP_RESULT};
1877         Filter f = {0};
1878         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1879         int rc = LDAP_SUCCESS;
1880
1881         struct berval pdn = BER_BVNULL;
1882         dninfo dni = {0};
1883         int     retry = 1;
1884         int     freecsn = 1;
1885
1886         Debug( LDAP_DEBUG_SYNC,
1887                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1888                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1889
1890         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1891                 if ( !si->si_refreshPresent ) {
1892                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1893                 }
1894         }
1895
1896         if ( syncstate == LDAP_SYNC_PRESENT ) {
1897                 return 0;
1898         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1899                 if ( entry == NULL ) {
1900                         return 0;
1901                 }
1902         }
1903
1904         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1905         if ( syncstate != LDAP_SYNC_DELETE ) {
1906                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1907
1908                 if ( a == NULL ) {
1909                         /* add if missing */
1910                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1911                                 &syncUUID_strrep, syncUUID );
1912
1913                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1914                         /* replace only if necessary */
1915                         if ( a->a_nvals != a->a_vals ) {
1916                                 ber_memfree( a->a_nvals[0].bv_val );
1917                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1918                         }
1919                         ber_memfree( a->a_vals[0].bv_val );
1920                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1921                 }
1922         }
1923
1924         f.f_choice = LDAP_FILTER_EQUALITY;
1925         f.f_ava = &ava;
1926         ava.aa_desc = slap_schema.si_ad_entryUUID;
1927         ava.aa_value = *syncUUID;
1928
1929         if ( syncuuid_inserted ) {
1930                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1931                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1932         }
1933         op->ors_filter = &f;
1934
1935         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1936         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1937                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1938         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1939         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1940                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1941         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1942         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1943
1944         op->o_tag = LDAP_REQ_SEARCH;
1945         op->ors_scope = LDAP_SCOPE_SUBTREE;
1946         op->ors_deref = LDAP_DEREF_NEVER;
1947
1948         /* get the entry for this UUID */
1949         op->o_req_dn = si->si_base;
1950         op->o_req_ndn = si->si_base;
1951
1952         op->o_time = slap_get_time();
1953         op->ors_tlimit = SLAP_NO_LIMIT;
1954         op->ors_slimit = 1;
1955
1956         op->ors_attrs = slap_anlist_all_attributes;
1957         op->ors_attrsonly = 0;
1958
1959         /* set callback function */
1960         op->o_callback = &cb;
1961         cb.sc_response = dn_callback;
1962         cb.sc_private = &dni;
1963         dni.new_entry = entry;
1964         dni.modlist = modlist;
1965
1966         if ( limits_check( op, &rs_search ) == 0 ) {
1967                 rc = be->be_search( op, &rs_search );
1968                 Debug( LDAP_DEBUG_SYNC,
1969                                 "syncrepl_entry: %s be_search (%d)\n",
1970                                 si->si_ridtxt, rc, 0 );
1971         }
1972
1973         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1974                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1975         }
1976
1977         cb.sc_response = null_callback;
1978         cb.sc_private = si;
1979
1980         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1981                 Debug( LDAP_DEBUG_SYNC,
1982                                 "syncrepl_entry: %s %s\n",
1983                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
1984         } else {
1985                 Debug( LDAP_DEBUG_SYNC,
1986                                 "syncrepl_entry: %s %s\n",
1987                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
1988         }
1989
1990         assert( BER_BVISNULL( &op->o_csn ) );
1991         if ( syncCSN ) {
1992                 slap_queue_csn( op, syncCSN );
1993         }
1994
1995         slap_op_time( &op->o_time, &op->o_tincr );
1996         switch ( syncstate ) {
1997         case LDAP_SYNC_ADD:
1998         case LDAP_SYNC_MODIFY:
1999                 if ( BER_BVISNULL( &op->o_csn ))
2000                 {
2001
2002                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2003                         if ( a ) {
2004                                 /* FIXME: op->o_csn is assumed to be
2005                                  * on the thread's slab; this needs
2006                                  * to be cleared ASAP.
2007                                  * What happens if already present?
2008                                  */
2009                                 assert( BER_BVISNULL( &op->o_csn ) );
2010                                 op->o_csn = a->a_vals[0];
2011                                 freecsn = 0;
2012                         }
2013                 }
2014 retry_add:;
2015                 if ( BER_BVISNULL( &dni.dn ) ) {
2016
2017                         op->o_req_dn = entry->e_name;
2018                         op->o_req_ndn = entry->e_nname;
2019                         op->o_tag = LDAP_REQ_ADD;
2020                         op->ora_e = entry;
2021                         op->o_bd = si->si_wbe;
2022
2023                         rc = op->o_bd->be_add( op, &rs_add );
2024                         Debug( LDAP_DEBUG_SYNC,
2025                                         "syncrepl_entry: %s be_add (%d)\n",
2026                                         si->si_ridtxt, rc, 0 );
2027                         switch ( rs_add.sr_err ) {
2028                         case LDAP_SUCCESS:
2029                                 if ( op->ora_e == entry ) {
2030                                         be_entry_release_w( op, entry );
2031                                 }
2032                                 entry = NULL;
2033                                 break;
2034
2035                         case LDAP_REFERRAL:
2036                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2037                          * only if the suffix entry is not present */
2038                         case LDAP_NO_SUCH_OBJECT:
2039                                 rc = syncrepl_add_glue( op, entry );
2040                                 entry = NULL;
2041                                 break;
2042
2043                         /* if an entry was added via syncrepl_add_glue(),
2044                          * it likely has no entryUUID, so the previous
2045                          * be_search() doesn't find it.  In this case,
2046                          * give syncrepl a chance to modify it. Also
2047                          * allow for entries that were recreated with the
2048                          * same DN but a different entryUUID.
2049                          */
2050                         case LDAP_ALREADY_EXISTS:
2051                                 if ( retry ) {
2052                                         Operation       op2 = *op;
2053                                         SlapReply       rs2 = { 0 };
2054                                         slap_callback   cb2 = { 0 };
2055
2056                                         op2.o_bd = be;
2057                                         op2.o_tag = LDAP_REQ_SEARCH;
2058                                         op2.o_req_dn = entry->e_name;
2059                                         op2.o_req_ndn = entry->e_nname;
2060                                         op2.ors_scope = LDAP_SCOPE_BASE;
2061                                         op2.ors_deref = LDAP_DEREF_NEVER;
2062                                         op2.ors_attrs = slap_anlist_all_attributes;
2063                                         op2.ors_attrsonly = 0;
2064                                         op2.ors_limit = NULL;
2065                                         op2.ors_slimit = 1;
2066                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2067
2068                                         f.f_choice = LDAP_FILTER_PRESENT;
2069                                         f.f_desc = slap_schema.si_ad_objectClass;
2070                                         op2.ors_filter = &f;
2071                                         op2.ors_filterstr = generic_filterstr;
2072
2073                                         op2.o_callback = &cb2;
2074                                         cb2.sc_response = dn_callback;
2075                                         cb2.sc_private = &dni;
2076
2077                                         rc = be->be_search( &op2, &rs2 );
2078                                         if ( rc ) goto done;
2079
2080                                         retry = 0;
2081                                         slap_op_time( &op->o_time, &op->o_tincr );
2082                                         goto retry_add;
2083                                 }
2084                                 /* FALLTHRU */
2085
2086                         default:
2087                                 Debug( LDAP_DEBUG_ANY,
2088                                         "syncrepl_entry: %s be_add failed (%d)\n",
2089                                         si->si_ridtxt, rs_add.sr_err, 0 );
2090                                 break;
2091                         }
2092                         op->o_bd = be;
2093                         goto done;
2094                 }
2095                 /* FALLTHRU */
2096                 op->o_req_dn = dni.dn;
2097                 op->o_req_ndn = dni.ndn;
2098                 if ( dni.renamed ) {
2099                         struct berval noldp, newp, nnewp;
2100
2101                         op->o_tag = LDAP_REQ_MODRDN;
2102                         dnRdn( &entry->e_name, &op->orr_newrdn );
2103                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2104
2105                         dnParent( &dni.ndn, &noldp );
2106                         dnParent( &entry->e_nname, &nnewp );
2107                         if ( !dn_match( &noldp, &nnewp ) ) {
2108                                 dnParent( &entry->e_name, &newp );
2109                                 op->orr_newSup = &newp;
2110                                 op->orr_nnewSup = &nnewp;
2111                         } else {
2112                                 op->orr_newSup = NULL;
2113                                 op->orr_nnewSup = NULL;
2114                         }
2115                         op->orr_deleteoldrdn = dni.delOldRDN;
2116                         op->orr_modlist = NULL;
2117                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2118                                 goto done;
2119                         }
2120
2121                         /* RDNs must be NUL-terminated for back-ldap */
2122                         noldp = op->orr_newrdn;
2123                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2124                         noldp = op->orr_nnewrdn;
2125                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2126
2127                         /* Setup opattrs too */
2128                         {
2129                                 static AttributeDescription *nullattr = NULL;
2130                                 static AttributeDescription **const opattrs[] = {
2131                                         &slap_schema.si_ad_entryCSN,
2132                                         &slap_schema.si_ad_modifiersName,
2133                                         &slap_schema.si_ad_modifyTimestamp,
2134                                         &nullattr
2135                                 };
2136                                 AttributeDescription *opattr;
2137                                 Modifications *mod, **modtail, **ml;
2138                                 int i;
2139
2140                                 for ( mod = op->orr_modlist;
2141                                         mod->sml_next;
2142                                         mod = mod->sml_next )
2143                                         ;
2144                                 modtail = &mod->sml_next;
2145
2146                                 /* pull mod off incoming modlist, append to orr_modlist */
2147                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2148                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2149                                         {
2150                                                 if ( (*ml)->sml_desc == opattr ) {
2151                                                         mod = *ml;
2152                                                         *ml = mod->sml_next;
2153                                                         mod->sml_next = NULL;
2154                                                         *modtail = mod;
2155                                                         modtail = &mod->sml_next;
2156                                                         break;
2157                                                 }
2158                                         }
2159                                 }
2160                         }
2161                         op->o_bd = si->si_wbe;
2162                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2163                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2164                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2165
2166                         slap_mods_free( op->orr_modlist, 1 );
2167                         Debug( LDAP_DEBUG_SYNC,
2168                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2169                                         si->si_ridtxt, rc, 0 );
2170                         op->o_bd = be;
2171                         goto done;
2172                 }
2173                 if ( dni.mods ) {
2174                         op->o_tag = LDAP_REQ_MODIFY;
2175                         op->orm_modlist = dni.mods;
2176                         op->orm_no_opattrs = 1;
2177                         op->o_bd = si->si_wbe;
2178
2179                         rc = op->o_bd->be_modify( op, &rs_modify );
2180                         slap_mods_free( op->orm_modlist, 1 );
2181                         op->orm_no_opattrs = 0;
2182                         Debug( LDAP_DEBUG_SYNC,
2183                                         "syncrepl_entry: %s be_modify (%d)\n",
2184                                         si->si_ridtxt, rc, 0 );
2185                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2186                                 Debug( LDAP_DEBUG_ANY,
2187                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2188                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2189                         }
2190                         op->o_bd = be;
2191                 } else {
2192                         Debug( LDAP_DEBUG_SYNC,
2193                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2194                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2195                 }
2196                 goto done;
2197         case LDAP_SYNC_DELETE :
2198                 if ( !BER_BVISNULL( &dni.dn ) ) {
2199                         op->o_req_dn = dni.dn;
2200                         op->o_req_ndn = dni.ndn;
2201                         op->o_tag = LDAP_REQ_DELETE;
2202                         op->o_bd = si->si_wbe;
2203                         rc = op->o_bd->be_delete( op, &rs_delete );
2204                         Debug( LDAP_DEBUG_SYNC,
2205                                         "syncrepl_entry: %s be_delete (%d)\n",
2206                                         si->si_ridtxt, rc, 0 );
2207
2208                         while ( rs_delete.sr_err == LDAP_SUCCESS
2209                                 && op->o_delete_glue_parent ) {
2210                                 op->o_delete_glue_parent = 0;
2211                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2212                                         slap_callback cb = { NULL };
2213                                         cb.sc_response = slap_null_cb;
2214                                         dnParent( &op->o_req_ndn, &pdn );
2215                                         op->o_req_dn = pdn;
2216                                         op->o_req_ndn = pdn;
2217                                         op->o_callback = &cb;
2218                                         op->o_bd->be_delete( op, &rs_delete );
2219                                 } else {
2220                                         break;
2221                                 }
2222                         }
2223                         op->o_bd = be;
2224                 }
2225                 goto done;
2226
2227         default :
2228                 Debug( LDAP_DEBUG_ANY,
2229                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2230                 goto done;
2231         }
2232
2233 done:
2234         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2235                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2236                 BER_BVZERO( &syncUUID_strrep );
2237         }
2238         if ( !BER_BVISNULL( &dni.ndn ) ) {
2239                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2240         }
2241         if ( !BER_BVISNULL( &dni.dn ) ) {
2242                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2243         }
2244         if ( entry ) {
2245                 entry_free( entry );
2246         }
2247         if ( syncCSN ) {
2248                 slap_graduate_commit_csn( op );
2249         }
2250         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2251                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2252         }
2253         BER_BVZERO( &op->o_csn );
2254         return rc;
2255 }
2256
2257 static struct berval gcbva[] = {
2258         BER_BVC("top"),
2259         BER_BVC("glue"),
2260         BER_BVNULL
2261 };
2262
2263 #define NP_DELETE_ONE   2
2264
2265 static void
2266 syncrepl_del_nonpresent(
2267         Operation *op,
2268         syncinfo_t *si,
2269         BerVarray uuids,
2270         struct berval *cookiecsn )
2271 {
2272         Backend* be = op->o_bd;
2273         slap_callback   cb = { NULL };
2274         SlapReply       rs_search = {REP_RESULT};
2275         SlapReply       rs_delete = {REP_RESULT};
2276         SlapReply       rs_modify = {REP_RESULT};
2277         struct nonpresent_entry *np_list, *np_prev;
2278         int rc;
2279         AttributeName   an[2];
2280
2281         struct berval pdn = BER_BVNULL;
2282         struct berval csn;
2283
2284         op->o_req_dn = si->si_base;
2285         op->o_req_ndn = si->si_base;
2286
2287         cb.sc_response = nonpresent_callback;
2288         cb.sc_private = si;
2289
2290         op->o_callback = &cb;
2291         op->o_tag = LDAP_REQ_SEARCH;
2292         op->ors_scope = si->si_scope;
2293         op->ors_deref = LDAP_DEREF_NEVER;
2294         op->o_time = slap_get_time();
2295         op->ors_tlimit = SLAP_NO_LIMIT;
2296
2297
2298         if ( uuids ) {
2299                 Filter uf;
2300                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2301                 int i;
2302
2303                 op->ors_attrsonly = 1;
2304                 op->ors_attrs = slap_anlist_no_attrs;
2305                 op->ors_limit = NULL;
2306                 op->ors_filter = &uf;
2307
2308                 uf.f_ava = &eq;
2309                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2310                 uf.f_next = NULL;
2311                 uf.f_choice = LDAP_FILTER_EQUALITY;
2312                 si->si_refreshDelete |= NP_DELETE_ONE;
2313
2314                 for (i=0; uuids[i].bv_val; i++) {
2315                         op->ors_slimit = 1;
2316                         uf.f_av_value = uuids[i];
2317                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2318                         rc = be->be_search( op, &rs_search );
2319                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2320                 }
2321                 si->si_refreshDelete ^= NP_DELETE_ONE;
2322         } else {
2323                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2324                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2325                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2326                 op->ors_attrs = an;
2327                 op->ors_slimit = SLAP_NO_LIMIT;
2328                 op->ors_attrsonly = 0;
2329                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2330                 op->ors_filterstr = si->si_filterstr;
2331                 op->o_nocaching = 1;
2332
2333                 if ( limits_check( op, &rs_search ) == 0 ) {
2334                         rc = be->be_search( op, &rs_search );
2335                 }
2336                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2337         }
2338
2339         op->o_nocaching = 0;
2340
2341         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2342
2343                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2344                         csn = *cookiecsn;
2345                 } else {
2346                         csn = si->si_syncCookie.ctxcsn[0];
2347                 }
2348
2349                 op->o_bd = si->si_wbe;
2350                 slap_queue_csn( op, &csn );
2351
2352                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2353                 while ( np_list != NULL ) {
2354                         LDAP_LIST_REMOVE( np_list, npe_link );
2355                         np_prev = np_list;
2356                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2357                         op->o_tag = LDAP_REQ_DELETE;
2358                         op->o_callback = &cb;
2359                         cb.sc_response = null_callback;
2360                         cb.sc_private = si;
2361                         op->o_req_dn = *np_prev->npe_name;
2362                         op->o_req_ndn = *np_prev->npe_nname;
2363                         rc = op->o_bd->be_delete( op, &rs_delete );
2364                         Debug( LDAP_DEBUG_SYNC,
2365                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2366                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2367
2368                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2369                                 Modifications mod1, mod2;
2370                                 mod1.sml_op = LDAP_MOD_REPLACE;
2371                                 mod1.sml_flags = 0;
2372                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2373                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2374                                 mod1.sml_numvals = 2;
2375                                 mod1.sml_values = &gcbva[0];
2376                                 mod1.sml_nvalues = NULL;
2377                                 mod1.sml_next = &mod2;
2378
2379                                 mod2.sml_op = LDAP_MOD_REPLACE;
2380                                 mod2.sml_flags = 0;
2381                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2382                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2383                                 mod1.sml_numvals = 1;
2384                                 mod2.sml_values = &gcbva[1];
2385                                 mod2.sml_nvalues = NULL;
2386                                 mod2.sml_next = NULL;
2387
2388                                 op->o_tag = LDAP_REQ_MODIFY;
2389                                 op->orm_modlist = &mod1;
2390
2391                                 rc = op->o_bd->be_modify( op, &rs_modify );
2392                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2393                         }
2394
2395                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2396                                         op->o_delete_glue_parent ) {
2397                                 op->o_delete_glue_parent = 0;
2398                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2399                                         slap_callback cb = { NULL };
2400                                         cb.sc_response = slap_null_cb;
2401                                         dnParent( &op->o_req_ndn, &pdn );
2402                                         op->o_req_dn = pdn;
2403                                         op->o_req_ndn = pdn;
2404                                         op->o_callback = &cb;
2405                                         /* give it a root privil ? */
2406                                         op->o_bd->be_delete( op, &rs_delete );
2407                                 } else {
2408                                         break;
2409                                 }
2410                         }
2411
2412                         op->o_delete_glue_parent = 0;
2413
2414                         ber_bvfree( np_prev->npe_name );
2415                         ber_bvfree( np_prev->npe_nname );
2416                         ch_free( np_prev );
2417
2418                         if ( slapd_shutdown ) {
2419                                 break;
2420                         }
2421                 }
2422
2423                 slap_graduate_commit_csn( op );
2424                 op->o_bd = be;
2425
2426                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2427                 BER_BVZERO( &op->o_csn );
2428         }
2429
2430         return;
2431 }
2432
2433 int
2434 syncrepl_add_glue(
2435         Operation* op,
2436         Entry *e )
2437 {
2438         Backend *be = op->o_bd;
2439         slap_callback cb = { NULL };
2440         Attribute       *a;
2441         int     rc;
2442         int suffrdns;
2443         int i;
2444         struct berval dn = BER_BVNULL;
2445         struct berval ndn = BER_BVNULL;
2446         Entry   *glue;
2447         SlapReply       rs_add = {REP_RESULT};
2448         struct berval   ptr, nptr;
2449         char            *comma;
2450
2451         op->o_tag = LDAP_REQ_ADD;
2452         op->o_callback = &cb;
2453         cb.sc_response = null_callback;
2454         cb.sc_private = NULL;
2455
2456         dn = e->e_name;
2457         ndn = e->e_nname;
2458
2459         /* count RDNs in suffix */
2460         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2461                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2462                         comma++;
2463                         ptr.bv_len -= comma - ptr.bv_val;
2464                         ptr.bv_val = comma;
2465                         i++;
2466                 }
2467                 suffrdns = i;
2468         } else {
2469                 /* suffix is "" */
2470                 suffrdns = 0;
2471         }
2472
2473         /* Start with BE suffix */
2474         ptr = dn;
2475         for ( i = 0; i < suffrdns; i++ ) {
2476                 comma = ber_bvrchr( &ptr, ',' );
2477                 if ( comma != NULL ) {
2478                         ptr.bv_len = comma - ptr.bv_val;
2479                 } else {
2480                         ptr.bv_len = 0;
2481                         break;
2482                 }
2483         }
2484
2485         if ( !BER_BVISEMPTY( &ptr ) ) {
2486                 dn.bv_len -= ptr.bv_len + 1;
2487                 dn.bv_val += ptr.bv_len + 1;
2488         }
2489
2490         /* the normalizedDNs are always the same length, no counting
2491          * required.
2492          */
2493         nptr = ndn;
2494         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2495                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2496                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2497
2498                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2499
2500         } else {
2501                 nptr.bv_len = 0;
2502         }
2503
2504         while ( ndn.bv_val > e->e_nname.bv_val ) {
2505                 glue = entry_alloc();
2506                 ber_dupbv( &glue->e_name, &dn );
2507                 ber_dupbv( &glue->e_nname, &ndn );
2508
2509                 a = attr_alloc( slap_schema.si_ad_objectClass );
2510
2511                 a->a_numvals = 2;
2512                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2513                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2514                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2515                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2516
2517                 a->a_nvals = a->a_vals;
2518
2519                 a->a_next = glue->e_attrs;
2520                 glue->e_attrs = a;
2521
2522                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2523
2524                 a->a_numvals = 1;
2525                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2526                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2527                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2528
2529                 a->a_nvals = a->a_vals;
2530
2531                 a->a_next = glue->e_attrs;
2532                 glue->e_attrs = a;
2533
2534                 op->o_req_dn = glue->e_name;
2535                 op->o_req_ndn = glue->e_nname;
2536                 op->ora_e = glue;
2537                 rc = be->be_add ( op, &rs_add );
2538                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2539                         if ( op->ora_e == glue )
2540                                 be_entry_release_w( op, glue );
2541                 } else {
2542                 /* incl. ALREADY EXIST */
2543                         entry_free( glue );
2544                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2545                                 entry_free( e );
2546                                 return rc;
2547                         }
2548                 }
2549
2550                 /* Move to next child */
2551                 comma = ber_bvrchr( &ptr, ',' );
2552                 if ( comma == NULL ) {
2553                         break;
2554                 }
2555                 ptr.bv_len = comma - ptr.bv_val;
2556
2557                 dn.bv_val = ++comma;
2558                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2559
2560                 comma = ber_bvrchr( &nptr, ',' );
2561                 assert( comma != NULL );
2562                 nptr.bv_len = comma - nptr.bv_val;
2563
2564                 ndn.bv_val = ++comma;
2565                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2566         }
2567
2568         op->o_req_dn = e->e_name;
2569         op->o_req_ndn = e->e_nname;
2570         op->ora_e = e;
2571         rc = be->be_add ( op, &rs_add );
2572         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2573                 if ( op->ora_e == e )
2574                         be_entry_release_w( op, e );
2575         } else {
2576                 entry_free( e );
2577         }
2578
2579         return rc;
2580 }
2581
2582 static int
2583 syncrepl_updateCookie(
2584         syncinfo_t *si,
2585         Operation *op,
2586         struct berval *pdn,
2587         struct sync_cookie *syncCookie )
2588 {
2589         Backend *be = op->o_bd;
2590         Modifications mod[2];
2591         struct berval first = BER_BVNULL;
2592
2593         int rc, i, j, len;
2594
2595         slap_callback cb = { NULL };
2596         SlapReply       rs_modify = {REP_RESULT};
2597
2598         mod[0].sml_op = LDAP_MOD_DELETE;
2599         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2600         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2601         mod[0].sml_values = NULL;
2602         mod[0].sml_nvalues = NULL;
2603         mod[0].sml_numvals = 0;
2604         mod[0].sml_next = &mod[1];
2605
2606         mod[1].sml_op = LDAP_MOD_ADD;
2607         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2608         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2609         mod[1].sml_values = NULL;
2610         mod[1].sml_nvalues = NULL;
2611         mod[1].sml_numvals = 0;
2612         mod[1].sml_next = NULL;
2613
2614         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2615
2616         for ( i=0; i<syncCookie->numcsns; i++ ) {
2617                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2618                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2619                                 continue;
2620                         len = syncCookie->ctxcsn[i].bv_len;
2621                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2622                                 len = si->si_cookieState->cs_vals[j].bv_len;
2623                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2624                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2625                                 ber_bvarray_add_x( &mod[0].sml_values,
2626                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2627                                 mod[0].sml_numvals++;
2628                                 ber_bvarray_add_x( &mod[1].sml_values,
2629                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2630                                 mod[1].sml_numvals++;
2631                                 if ( BER_BVISNULL( &first ))
2632                                         first = syncCookie->ctxcsn[i];
2633                         }
2634                         break;
2635                 }
2636                 /* there was no match for this SID, it's a new CSN */
2637                 if ( j == si->si_cookieState->cs_num ) {
2638                         ber_bvarray_add_x( &mod[1].sml_values,
2639                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2640                         mod[1].sml_numvals++;
2641                         if ( BER_BVISNULL( &first ))
2642                                 first = syncCookie->ctxcsn[i];
2643                 }
2644         }
2645         /* Should never happen, ITS#5065 */
2646         if ( BER_BVISNULL( &first )) {
2647                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2648                 return 0;
2649         }
2650         op->o_bd = si->si_wbe;
2651         slap_queue_csn( op, &first );
2652
2653         op->o_tag = LDAP_REQ_MODIFY;
2654
2655         cb.sc_response = null_callback;
2656         cb.sc_private = si;
2657
2658         op->o_callback = &cb;
2659         op->o_req_dn = op->o_bd->be_suffix[0];
2660         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2661
2662         /* update contextCSN */
2663         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2664
2665         if ( mod[0].sml_values )
2666                 op->orm_modlist = mod;
2667         else
2668                 op->orm_modlist = &mod[1];
2669
2670         op->orm_no_opattrs = 1;
2671         rc = op->o_bd->be_modify( op, &rs_modify );
2672         op->orm_no_opattrs = 0;
2673         op->o_msgid = 0;
2674
2675         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2676                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2677                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2678                 /* If we replaced any old values */
2679                 if ( mod[0].sml_values ) {
2680                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2681                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2682                                         if ( mod[0].sml_values[i].bv_val !=
2683                                                 si->si_cookieState->cs_vals[j].bv_val )
2684                                                 continue;
2685                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2686                                                 &mod[1].sml_values[i] );
2687                                         break;
2688                                 }
2689                         }
2690                 } else {
2691                         /* Else we just added */
2692                         si->si_cookieState->cs_num += syncCookie->numcsns;
2693                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2694                         free( si->si_cookieState->cs_sids );
2695                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2696                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2697                 }
2698
2699                 si->si_cookieState->cs_age++;
2700                 si->si_cookieAge = si->si_cookieState->cs_age;
2701         } else {
2702                 Debug( LDAP_DEBUG_ANY,
2703                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2704                         si->si_ridtxt, rs_modify.sr_err, 0 );
2705         }
2706         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2707
2708         slap_graduate_commit_csn( op );
2709         op->o_bd = be;
2710         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2711         BER_BVZERO( &op->o_csn );
2712         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2713         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2714         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2715
2716         return rc;
2717 }
2718
2719 static void
2720 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2721         Modifications ***mret, Modifications ***mcur )
2722 {
2723         int i, j;
2724         Modifications *mod, **modtail;
2725
2726         modtail = *mret;
2727
2728         if ( old ) {
2729                 int n, o, nn, no;
2730                 struct berval **adds, **dels;
2731                 /* count old and new */
2732                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2733                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2734
2735                 /* there MUST be both old and new values */
2736                 assert( o != 0 );
2737                 assert( n != 0 );
2738                 j = 0;
2739
2740                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2741                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2742
2743                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2744                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2745
2746                 nn = n; no = o;
2747
2748                 for ( i=0; i<o; i++ ) {
2749                         for ( j=0; j<n; j++ ) {
2750                                 if ( !adds[j] )
2751                                         continue;
2752                                 if ( bvmatch( dels[i], adds[j] ) ) {
2753                                         no--;
2754                                         nn--;
2755                                         adds[j] = NULL;
2756                                         dels[i] = NULL;
2757                                         break;
2758                                 }
2759                         }
2760                 }
2761
2762                 i = j;
2763                 /* all old values were deleted, just use the replace op */
2764                 if ( no == o ) {
2765                         i = j-1;
2766                 } else if ( no ) {
2767                 /* delete some values */
2768                         mod = ch_malloc( sizeof( Modifications ) );
2769                         mod->sml_op = LDAP_MOD_DELETE;
2770                         mod->sml_flags = 0;
2771                         mod->sml_desc = old->a_desc;
2772                         mod->sml_type = mod->sml_desc->ad_cname;
2773                         mod->sml_numvals = no;
2774                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2775                         if ( old->a_vals != old->a_nvals ) {
2776                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2777                         } else {
2778                                 mod->sml_nvalues = NULL;
2779                         }
2780                         j = 0;
2781                         for ( i = 0; i < o; i++ ) {
2782                                 if ( !dels[i] ) continue;
2783                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2784                                 if ( mod->sml_nvalues ) {
2785                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2786                                 }
2787                                 j++;
2788                         }
2789                         BER_BVZERO( &mod->sml_values[j] );
2790                         if ( mod->sml_nvalues ) {
2791                                 BER_BVZERO( &mod->sml_nvalues[j] );
2792                         }
2793                         *modtail = mod;
2794                         modtail = &mod->sml_next;
2795                         i = j;
2796                 }
2797                 op->o_tmpfree( dels, op->o_tmpmemctx );
2798                 /* some values were added */
2799                 if ( nn && no < o ) {
2800                         mod = ch_malloc( sizeof( Modifications ) );
2801                         mod->sml_op = LDAP_MOD_ADD;
2802                         mod->sml_flags = 0;
2803                         mod->sml_desc = old->a_desc;
2804                         mod->sml_type = mod->sml_desc->ad_cname;
2805                         mod->sml_numvals = nn;
2806                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2807                         if ( old->a_vals != old->a_nvals ) {
2808                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2809                         } else {
2810                                 mod->sml_nvalues = NULL;
2811                         }
2812                         j = 0;
2813                         for ( i = 0; i < n; i++ ) {
2814                                 if ( !adds[i] ) continue;
2815                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2816                                 if ( mod->sml_nvalues ) {
2817                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2818                                 }
2819                                 j++;
2820                         }
2821                         BER_BVZERO( &mod->sml_values[j] );
2822                         if ( mod->sml_nvalues ) {
2823                                 BER_BVZERO( &mod->sml_nvalues[j] );
2824                         }
2825                         *modtail = mod;
2826                         modtail = &mod->sml_next;
2827                         i = j;
2828                 }
2829                 op->o_tmpfree( adds, op->o_tmpmemctx );
2830         } else {
2831                 /* new attr, just use the new mod */
2832                 i = 0;
2833                 j = 1;
2834         }
2835         /* advance to next element */
2836         mod = **mcur;
2837         if ( mod ) {
2838                 if ( i != j ) {
2839                         **mcur = mod->sml_next;
2840                         *modtail = mod;
2841                         modtail = &mod->sml_next;
2842                 } else {
2843                         *mcur = &mod->sml_next;
2844                 }
2845         }
2846         *mret = modtail;
2847 }
2848
2849 static int
2850 dn_callback(
2851         Operation*      op,
2852         SlapReply*      rs )
2853 {
2854         dninfo *dni = op->o_callback->sc_private;
2855
2856         if ( rs->sr_type == REP_SEARCH ) {
2857                 if ( !BER_BVISNULL( &dni->dn ) ) {
2858                         Debug( LDAP_DEBUG_ANY,
2859                                 "dn_callback : consistency error - "
2860                                 "entryUUID is not unique\n", 0, 0, 0 );
2861                 } else {
2862                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2863                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2864                         /* If there is a new entry, see if it differs from the old.
2865                          * We compare the non-normalized values so that cosmetic changes
2866                          * in the provider are always propagated.
2867                          */
2868                         if ( dni->new_entry ) {
2869                                 Modifications **modtail, **ml;
2870                                 Attribute *old, *new;
2871                                 int is_ctx;
2872
2873                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2874                                         &op->o_bd->be_nsuffix[0] );
2875
2876                                 /* Did the DN change?
2877                                  */
2878                                 if ( !dn_match( &rs->sr_entry->e_name,
2879                                                 &dni->new_entry->e_name ) )
2880                                 {
2881                                         struct berval oldRDN, oldVal;
2882                                         AttributeDescription *ad = NULL;
2883                                         Attribute *a;
2884
2885                                         dni->renamed = 1;
2886                                         /* See if the oldRDN was deleted */
2887                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2888                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2889                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2890                                                 oldRDN.bv_val );
2891                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2892                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2893                                         a = attr_find( dni->new_entry->e_attrs, ad );
2894                                         if ( !a || attr_valfind( a,
2895                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2896                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2897                                                 SLAP_MR_VALUE_OF_SYNTAX,
2898                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
2899                                         {
2900                                                 dni->delOldRDN = 1;
2901                                         }
2902                                         /* OK, this was just a modDN, we're done */
2903                                         return LDAP_SUCCESS;
2904                                 }
2905
2906                                 modtail = &dni->mods;
2907                                 ml = dni->modlist;
2908
2909                                 /* Make sure new entry is actually newer than old entry */
2910                                 old = attr_find( rs->sr_entry->e_attrs,
2911                                         slap_schema.si_ad_entryCSN );
2912                                 new = attr_find( dni->new_entry->e_attrs,
2913                                         slap_schema.si_ad_entryCSN );
2914                                 if ( new && old ) {
2915                                         int rc, len = old->a_vals[0].bv_len;
2916                                         if ( len > new->a_vals[0].bv_len )
2917                                                 len = new->a_vals[0].bv_len;
2918                                         rc = memcmp( old->a_vals[0].bv_val,
2919                                                 new->a_vals[0].bv_val, len );
2920                                         if ( rc > 0 ) {
2921                                                 Debug( LDAP_DEBUG_SYNC,
2922                                                         "dn_callback : new entry is older than ours "
2923                                                         "%s ours %s, new %s\n",
2924                                                         rs->sr_entry->e_name.bv_val,
2925                                                         old->a_vals[0].bv_val,
2926                                                         new->a_vals[0].bv_val );
2927                                                 return LDAP_SUCCESS;
2928                                         } else if ( rc == 0 ) {
2929                                                 Debug( LDAP_DEBUG_SYNC,
2930                                                         "dn_callback : entries have identical CSN "
2931                                                         "%s ours %s, new %s\n",
2932                                                         rs->sr_entry->e_name.bv_val,
2933                                                         old->a_vals[0].bv_val,
2934                                                         new->a_vals[0].bv_val );
2935                                                 return LDAP_SUCCESS;
2936                                         }
2937                                 }
2938
2939                                 /* We assume that attributes are saved in the same order
2940                                  * in the remote and local databases. So if we walk through
2941                                  * the attributeDescriptions one by one they should match in
2942                                  * lock step. If not, look for an add or delete.
2943                                  */
2944                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2945                                                 old && new; )
2946                                 {
2947                                         /* If we've seen this before, use its mod now */
2948                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2949                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2950                                                 new = new->a_next;
2951                                                 continue;
2952                                         }
2953                                         /* Skip contextCSN */
2954                                         if ( is_ctx && old->a_desc ==
2955                                                 slap_schema.si_ad_contextCSN ) {
2956                                                 old = old->a_next;
2957                                                 continue;
2958                                         }
2959
2960                                         if ( old->a_desc != new->a_desc ) {
2961                                                 Modifications *mod;
2962                                                 Attribute *tmp;
2963
2964                                                 /* If it's just been re-added later,
2965                                                  * remember that we've seen it.
2966                                                  */
2967                                                 tmp = attr_find( new, old->a_desc );
2968                                                 if ( tmp ) {
2969                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2970                                                 } else {
2971                                                         /* If it's a new attribute, pull it in.
2972                                                          */
2973                                                         tmp = attr_find( old, new->a_desc );
2974                                                         if ( !tmp ) {
2975                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2976                                                                 new = new->a_next;
2977                                                                 continue;
2978                                                         }
2979                                                         /* Delete old attr */
2980                                                         mod = ch_malloc( sizeof( Modifications ) );
2981                                                         mod->sml_op = LDAP_MOD_DELETE;
2982                                                         mod->sml_flags = 0;
2983                                                         mod->sml_desc = old->a_desc;
2984                                                         mod->sml_type = mod->sml_desc->ad_cname;
2985                                                         mod->sml_numvals = 0;
2986                                                         mod->sml_values = NULL;
2987                                                         mod->sml_nvalues = NULL;
2988                                                         *modtail = mod;
2989                                                         modtail = &mod->sml_next;
2990                                                 }
2991                                                 old = old->a_next;
2992                                                 continue;
2993                                         }
2994                                         /* kludge - always update modifiersName so that it
2995                                          * stays co-located with the other mod opattrs. But only
2996                                          * if we know there are other valid mods.
2997                                          */
2998                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
2999                                                 dni->mods )
3000                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3001                                         else
3002                                                 attr_cmp( op, old, new, &modtail, &ml );
3003                                         new = new->a_next;
3004                                         old = old->a_next;
3005                                 }
3006                                 *modtail = *ml;
3007                                 *ml = NULL;
3008                         }
3009                 }
3010         } else if ( rs->sr_type == REP_RESULT ) {
3011                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3012                         Debug( LDAP_DEBUG_ANY,
3013                                 "dn_callback : consistency error - "
3014                                 "entryUUID is not unique\n", 0, 0, 0 );
3015                 }
3016         }
3017
3018         return LDAP_SUCCESS;
3019 }
3020
3021 static int
3022 nonpresent_callback(
3023         Operation*      op,
3024         SlapReply*      rs )
3025 {
3026         syncinfo_t *si = op->o_callback->sc_private;
3027         Attribute *a;
3028         int count = 0;
3029         struct berval* present_uuid = NULL;
3030         struct nonpresent_entry *np_entry;
3031
3032         if ( rs->sr_type == REP_RESULT ) {
3033                 count = avl_free( si->si_presentlist, ch_free );
3034                 si->si_presentlist = NULL;
3035
3036         } else if ( rs->sr_type == REP_SEARCH ) {
3037                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3038                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3039
3040                         if ( a ) {
3041                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3042                                         syncuuid_cmp );
3043                         }
3044
3045                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3046                                 char buf[sizeof("rid=999 not")];
3047
3048                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3049                                         present_uuid ? "got" : "not" );
3050
3051                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3052                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3053                         }
3054
3055                         if ( a == NULL ) return 0;
3056                 }
3057
3058                 if ( present_uuid == NULL ) {
3059                         np_entry = (struct nonpresent_entry *)
3060                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3061                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3062                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3063                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3064
3065                 } else {
3066                         avl_delete( &si->si_presentlist,
3067                                 &a->a_nvals[0], syncuuid_cmp );
3068                         ch_free( present_uuid );
3069                 }
3070         }
3071         return LDAP_SUCCESS;
3072 }
3073
3074 static int
3075 null_callback(
3076         Operation*      op,
3077         SlapReply*      rs )
3078 {
3079         if ( rs->sr_err != LDAP_SUCCESS &&
3080                 rs->sr_err != LDAP_REFERRAL &&
3081                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3082                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3083                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3084         {
3085                 Debug( LDAP_DEBUG_ANY,
3086                         "null_callback : error code 0x%x\n",
3087                         rs->sr_err, 0, 0 );
3088         }
3089         return LDAP_SUCCESS;
3090 }
3091
3092 static struct berval *
3093 slap_uuidstr_from_normalized(
3094         struct berval* uuidstr,
3095         struct berval* normalized,
3096         void *ctx )
3097 {
3098 #if 0
3099         struct berval *new;
3100         unsigned char nibble;
3101         int i, d = 0;
3102
3103         if ( normalized == NULL ) return NULL;
3104         if ( normalized->bv_len != 16 ) return NULL;
3105
3106         if ( uuidstr ) {
3107                 new = uuidstr;
3108         } else {
3109                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3110                 if ( new == NULL ) {
3111                         return NULL;
3112                 }
3113         }
3114
3115         new->bv_len = 36;
3116
3117         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3118                 if ( new != uuidstr ) {
3119                         slap_sl_free( new, ctx );
3120                 }
3121                 return NULL;
3122         }
3123
3124         for ( i = 0; i < 16; i++ ) {
3125                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3126                         new->bv_val[(i<<1)+d] = '-';
3127                         d += 1;
3128                 }
3129
3130                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3131                 if ( nibble < 10 ) {
3132                         new->bv_val[(i<<1)+d] = nibble + '0';
3133                 } else {
3134                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3135                 }
3136
3137                 nibble = (normalized->bv_val[i]) & 0xF;
3138                 if ( nibble < 10 ) {
3139                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3140                 } else {
3141                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3142                 }
3143         }
3144
3145         new->bv_val[new->bv_len] = '\0';
3146         return new;
3147 #endif
3148
3149         struct berval   *new;
3150         int             rc = 0;
3151
3152         if ( normalized == NULL ) return NULL;
3153         if ( normalized->bv_len != 16 ) return NULL;
3154
3155         if ( uuidstr ) {
3156                 new = uuidstr;
3157
3158         } else {
3159                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3160                 if ( new == NULL ) {
3161                         return NULL;
3162                 }
3163         }
3164
3165         new->bv_len = 36;
3166
3167         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3168                 rc = 1;
3169                 goto done;
3170         }
3171
3172         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3173                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3174
3175 done:;
3176         if ( rc == -1 ) {
3177                 if ( new != NULL ) {
3178                         if ( new->bv_val != NULL ) {
3179                                 slap_sl_free( new->bv_val, ctx );
3180                         }
3181
3182                         if ( new != uuidstr ) {
3183                                 slap_sl_free( new, ctx );
3184                         }
3185                 }
3186                 new = NULL;
3187
3188         } else {
3189                 new->bv_len = rc;
3190         }
3191
3192         return new;
3193 }
3194
3195 static int
3196 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3197 {
3198         const struct berval *uuid1 = v_uuid1;
3199         const struct berval *uuid2 = v_uuid2;
3200         int rc = uuid1->bv_len - uuid2->bv_len;
3201         if ( rc ) return rc;
3202         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3203 }
3204
3205 void
3206 syncinfo_free( syncinfo_t *sie, int free_all )
3207 {
3208         syncinfo_t *si_next;
3209
3210         if ( free_all && sie->si_cookieState ) {
3211                 ch_free( sie->si_cookieState->cs_sids );
3212                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3213                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3214                 ch_free( sie->si_cookieState );
3215         }
3216         do {
3217                 si_next = sie->si_next;
3218
3219                 if ( sie->si_ld ) {
3220                         if ( sie->si_conn_setup ) {
3221                                 ber_socket_t s;
3222                                 ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
3223                                 connection_client_stop( s );
3224                                 sie->si_conn_setup = 0;
3225                         }
3226                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3227                 }
3228
3229                 /* re-fetch it, in case it was already removed */
3230                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3231                 if ( sie->si_re ) {
3232                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3233                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3234                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3235                 }
3236
3237                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3238
3239                 bindconf_free( &sie->si_bindconf );
3240
3241                 if ( sie->si_filterstr.bv_val ) {
3242                         ch_free( sie->si_filterstr.bv_val );
3243                 }
3244                 if ( sie->si_logfilterstr.bv_val ) {
3245                         ch_free( sie->si_logfilterstr.bv_val );
3246                 }
3247                 if ( sie->si_base.bv_val ) {
3248                         ch_free( sie->si_base.bv_val );
3249                 }
3250                 if ( sie->si_logbase.bv_val ) {
3251                         ch_free( sie->si_logbase.bv_val );
3252                 }
3253                 if ( sie->si_attrs ) {
3254                         int i = 0;
3255                         while ( sie->si_attrs[i] != NULL ) {
3256                                 ch_free( sie->si_attrs[i] );
3257                                 i++;
3258                         }
3259                         ch_free( sie->si_attrs );
3260                 }
3261                 if ( sie->si_exattrs ) {
3262                         int i = 0;
3263                         while ( sie->si_exattrs[i] != NULL ) {
3264                                 ch_free( sie->si_exattrs[i] );
3265                                 i++;
3266                         }
3267                         ch_free( sie->si_exattrs );
3268                 }
3269                 if ( sie->si_anlist ) {
3270                         int i = 0;
3271                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3272                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3273                                 i++;
3274                         }
3275                         ch_free( sie->si_anlist );
3276                 }
3277                 if ( sie->si_exanlist ) {
3278                         int i = 0;
3279                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3280                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3281                                 i++;
3282                         }
3283                         ch_free( sie->si_exanlist );
3284                 }
3285                 if ( sie->si_retryinterval ) {
3286                         ch_free( sie->si_retryinterval );
3287                 }
3288                 if ( sie->si_retrynum ) {
3289                         ch_free( sie->si_retrynum );
3290                 }
3291                 if ( sie->si_retrynum_init ) {
3292                         ch_free( sie->si_retrynum_init );
3293                 }
3294                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3295                 if ( sie->si_presentlist ) {
3296                     avl_free( sie->si_presentlist, ch_free );
3297                 }
3298                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3299                         struct nonpresent_entry* npe;
3300                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3301                         LDAP_LIST_REMOVE( npe, npe_link );
3302                         if ( npe->npe_name ) {
3303                                 if ( npe->npe_name->bv_val ) {
3304                                         ch_free( npe->npe_name->bv_val );
3305                                 }
3306                                 ch_free( npe->npe_name );
3307                         }
3308                         if ( npe->npe_nname ) {
3309                                 if ( npe->npe_nname->bv_val ) {
3310                                         ch_free( npe->npe_nname->bv_val );
3311                                 }
3312                                 ch_free( npe->npe_nname );
3313                         }
3314                         ch_free( npe );
3315                 }
3316                 ch_free( sie );
3317                 sie = si_next;
3318         } while ( free_all && si_next );
3319 }
3320
3321
3322
3323 /* NOTE: used & documented in slapd.conf(5) */
3324 #define IDSTR                   "rid"
3325 #define PROVIDERSTR             "provider"
3326 #define SCHEMASTR               "schemachecking"
3327 #define FILTERSTR               "filter"
3328 #define SEARCHBASESTR           "searchbase"
3329 #define SCOPESTR                "scope"
3330 #define ATTRSONLYSTR            "attrsonly"
3331 #define ATTRSSTR                "attrs"
3332 #define TYPESTR                 "type"
3333 #define INTERVALSTR             "interval"
3334 #define RETRYSTR                "retry"
3335 #define SLIMITSTR               "sizelimit"
3336 #define TLIMITSTR               "timelimit"
3337 #define SYNCDATASTR             "syncdata"
3338 #define LOGBASESTR              "logbase"
3339 #define LOGFILTERSTR    "logfilter"
3340
3341 /* FIXME: undocumented */
3342 #define EXATTRSSTR              "exattrs"
3343 #define MANAGEDSAITSTR          "manageDSAit"
3344
3345 /* mandatory */
3346 #define GOT_ID                  0x0001
3347 #define GOT_PROVIDER    0x0002
3348 #define GOT_BASE                0x0004
3349
3350 /* check */
3351 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3352
3353 static struct {
3354         struct berval key;
3355         int val;
3356 } scopes[] = {
3357         { BER_BVC("base"), LDAP_SCOPE_BASE },
3358         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3359         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3360         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3361         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3362         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3363         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3364         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3365         { BER_BVNULL, 0 }
3366 };
3367
3368 static slap_verbmasks datamodes[] = {
3369         { BER_BVC("default"), SYNCDATA_DEFAULT },
3370         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3371         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3372         { BER_BVNULL, 0 }
3373 };
3374
3375 static int
3376 parse_syncrepl_line(
3377         ConfigArgs      *c,
3378         syncinfo_t      *si )
3379 {
3380         int     gots = 0;
3381         int     i;
3382         char    *val;
3383
3384         for ( i = 1; i < c->argc; i++ ) {
3385                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3386                                         STRLENOF( IDSTR "=" ) ) )
3387                 {
3388                         int tmp;
3389                         /* '\0' string terminator accounts for '=' */
3390                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3391                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3392                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3393                                         "Error: parse_syncrepl_line: "
3394                                         "unable to parse syncrepl id \"%s\"", val );
3395                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3396                                 return -1;
3397                         }
3398                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3399                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3400                                         "Error: parse_syncrepl_line: "
3401                                         "syncrepl id %d is out of range [0..4095]", tmp );
3402                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3403                                 return -1;
3404                         }
3405                         si->si_rid = tmp;
3406                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3407                         gots |= GOT_ID;
3408                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3409                                         STRLENOF( PROVIDERSTR "=" ) ) )
3410                 {
3411                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3412                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3413                         gots |= GOT_PROVIDER;
3414                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3415                                         STRLENOF( SCHEMASTR "=" ) ) )
3416                 {
3417                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3418                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3419                                 si->si_schemachecking = 1;
3420                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3421                                 si->si_schemachecking = 0;
3422                         } else {
3423                                 si->si_schemachecking = 1;
3424                         }
3425                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3426                                         STRLENOF( FILTERSTR "=" ) ) )
3427                 {
3428                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3429                         if ( si->si_filterstr.bv_val )
3430                                 ch_free( si->si_filterstr.bv_val );
3431                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3432                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3433                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3434                 {
3435                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3436                         if ( si->si_logfilterstr.bv_val )
3437                                 ch_free( si->si_logfilterstr.bv_val );
3438                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3439                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3440                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3441                 {
3442                         struct berval   bv;
3443                         int             rc;
3444
3445                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3446                         if ( si->si_base.bv_val ) {
3447                                 ch_free( si->si_base.bv_val );
3448                         }
3449                         ber_str2bv( val, 0, 0, &bv );
3450                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3451                         if ( rc != LDAP_SUCCESS ) {
3452                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3453                                         "Invalid base DN \"%s\": %d (%s)",
3454                                         val, rc, ldap_err2string( rc ) );
3455                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3456                                 return -1;
3457                         }
3458                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3459                                 ch_free( si->si_base.bv_val );
3460                                 BER_BVZERO( &si->si_base );
3461                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3462                                         "Base DN \"%s\" is not within the database naming context",
3463                                         val );
3464                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3465                                 return -1;
3466                         }
3467                         gots |= GOT_BASE;
3468                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3469                                         STRLENOF( LOGBASESTR "=" ) ) )
3470                 {
3471                         struct berval   bv;
3472                         int             rc;
3473
3474                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3475                         if ( si->si_logbase.bv_val ) {
3476                                 ch_free( si->si_logbase.bv_val );
3477                         }
3478                         ber_str2bv( val, 0, 0, &bv );
3479                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3480                         if ( rc != LDAP_SUCCESS ) {
3481                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3482                                         "Invalid logbase DN \"%s\": %d (%s)",
3483                                         val, rc, ldap_err2string( rc ) );
3484                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3485                                 return -1;
3486                         }
3487                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3488                                         STRLENOF( SCOPESTR "=" ) ) )
3489                 {
3490                         int j;
3491                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3492                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3493                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3494                                         si->si_scope = scopes[j].val;
3495                                         break;
3496                                 }
3497                         }
3498                         if ( BER_BVISNULL(&scopes[j].key) ) {
3499                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3500                                         "Error: parse_syncrepl_line: "
3501                                         "unknown scope \"%s\"", val);
3502                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3503                                 return -1;
3504                         }
3505                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3506                                         STRLENOF( ATTRSONLYSTR ) ) )
3507                 {
3508                         si->si_attrsonly = 1;
3509                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3510                                         STRLENOF( ATTRSSTR "=" ) ) )
3511                 {
3512                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3513                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3514                                 char *attr_fname;
3515                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3516                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3517                                 if ( si->si_anlist == NULL ) {
3518                                         ch_free( attr_fname );
3519                                         return -1;
3520                                 }
3521                                 si->si_anfile = attr_fname;
3522                         } else {
3523                                 char *str, *s, *next;
3524                                 char delimstr[] = " ,\t";
3525                                 str = ch_strdup( val );
3526                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3527                                                 s != NULL;
3528                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3529                                 {
3530                                         if ( strlen(s) == 1 && *s == '*' ) {
3531                                                 si->si_allattrs = 1;
3532                                                 val[ s - str ] = delimstr[0];
3533                                         }
3534                                         if ( strlen(s) == 1 && *s == '+' ) {
3535                                                 si->si_allopattrs = 1;
3536                                                 val [ s - str ] = delimstr[0];
3537                                         }
3538                                 }
3539                                 ch_free( str );
3540                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3541                                 if ( si->si_anlist == NULL ) {
3542                                         return -1;
3543                                 }
3544                         }
3545                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3546                                         STRLENOF( EXATTRSSTR "=" ) ) )
3547                 {
3548                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3549                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3550                                 char *attr_fname;
3551                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3552                                 si->si_exanlist = file2anlist(
3553                                         si->si_exanlist, attr_fname, " ,\t" );
3554                                 if ( si->si_exanlist == NULL ) {
3555                                         ch_free( attr_fname );
3556                                         return -1;
3557                                 }
3558                                 ch_free( attr_fname );
3559                         } else {
3560                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3561                                 if ( si->si_exanlist == NULL ) {
3562                                         return -1;
3563                                 }
3564                         }
3565                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3566                                         STRLENOF( TYPESTR "=" ) ) )
3567                 {
3568                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3569                         if ( !strncasecmp( val, "refreshOnly",
3570                                                 STRLENOF("refreshOnly") ) )
3571                         {
3572                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3573                         } else if ( !strncasecmp( val, "refreshAndPersist",
3574                                                 STRLENOF("refreshAndPersist") ) )
3575                         {
3576                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3577                                 si->si_interval = 60;
3578                         } else {
3579                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3580                                         "Error: parse_syncrepl_line: "
3581                                         "unknown sync type \"%s\"", val);
3582                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3583                                 return -1;
3584                         }
3585                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3586                                         STRLENOF( INTERVALSTR "=" ) ) )
3587                 {
3588                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3589                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3590                                 si->si_interval = 0;
3591                         } else if ( strchr( val, ':' ) != NULL ) {
3592                                 char *next, *ptr = val;
3593                                 int dd, hh, mm, ss;
3594
3595                                 dd = strtol( ptr, &next, 10 );
3596                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3597                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3598                                                 "Error: parse_syncrepl_line: "
3599                                                 "invalid interval \"%s\", unable to parse days", val );
3600                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3601                                         return -1;
3602                                 }
3603                                 ptr = next + 1;
3604                                 hh = strtol( ptr, &next, 10 );
3605                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3606                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3607                                                 "Error: parse_syncrepl_line: "
3608                                                 "invalid interval \"%s\", unable to parse hours", val );
3609                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3610                                         return -1;
3611                                 }
3612                                 ptr = next + 1;
3613                                 mm = strtol( ptr, &next, 10 );
3614                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3615                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3616                                                 "Error: parse_syncrepl_line: "
3617                                                 "invalid interval \"%s\", unable to parse minutes", val );
3618                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3619                                         return -1;
3620                                 }
3621                                 ptr = next + 1;
3622                                 ss = strtol( ptr, &next, 10 );
3623                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3624                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3625                                                 "Error: parse_syncrepl_line: "
3626                                                 "invalid interval \"%s\", unable to parse seconds", val );
3627                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3628                                         return -1;
3629                                 }
3630                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3631                         } else {
3632                                 unsigned long   t;
3633
3634                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3635                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3636                                                 "Error: parse_syncrepl_line: "
3637                                                 "invalid interval \"%s\"", val );
3638                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3639                                         return -1;
3640                                 }
3641                                 si->si_interval = (time_t)t;
3642                         }
3643                         if ( si->si_interval < 0 ) {
3644                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3645                                         "Error: parse_syncrepl_line: "
3646                                         "invalid interval \"%ld\"",
3647                                         (long) si->si_interval);
3648                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3649                                 return -1;
3650                         }
3651                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3652                                         STRLENOF( RETRYSTR "=" ) ) )
3653                 {
3654                         char **retry_list;
3655                         int j, k, n;
3656
3657                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3658                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3659                         retry_list[0] = NULL;
3660
3661                         slap_str2clist( &retry_list, val, " ,\t" );
3662
3663                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3664                         n = k / 2;
3665                         if ( k % 2 ) {
3666                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3667                                         "Error: incomplete syncrepl retry list" );
3668                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3669                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3670                                         ch_free( retry_list[k] );
3671                                 }
3672                                 ch_free( retry_list );
3673                                 return 1;
3674                         }
3675                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3676                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3677                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3678                         for ( j = 0; j < n; j++ ) {
3679                                 unsigned long   t;
3680                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3681                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3682                                                 "Error: invalid retry interval \"%s\" (#%d)",
3683                                                 retry_list[j*2], j );
3684                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3685                                         /* do some cleanup */
3686                                         return 1;
3687                                 }
3688                                 si->si_retryinterval[j] = (time_t)t;
3689                                 if ( *retry_list[j*2+1] == '+' ) {
3690                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3691                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3692                                         j++;
3693                                         break;
3694                                 } else {
3695                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3696                                                         || si->si_retrynum_init[j] <= 0 )
3697                                         {
3698                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3699                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3700                                                         retry_list[j*2+1], j );
3701                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3702                                                 /* do some cleanup */
3703                                                 return 1;
3704                                         }
3705                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3706                                                         || si->si_retrynum[j] <= 0 )
3707                                         {
3708                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3709                                                         "Error: invalid retry number \"%s\" (#%d)",
3710                                                         retry_list[j*2+1], j );
3711                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3712                                                 /* do some cleanup */
3713                                                 return 1;
3714                                         }
3715                                 }
3716                         }
3717                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3718                         si->si_retrynum[j] = RETRYNUM_TAIL;
3719                         si->si_retryinterval[j] = 0;
3720
3721                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3722                                 ch_free( retry_list[k] );
3723                         }
3724                         ch_free( retry_list );
3725                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3726                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3727                 {
3728                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3729                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3730                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3731                         {
3732                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3733                                         "invalid manageDSAit value \"%s\".\n",
3734                                         val );
3735                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3736                                 return 1;
3737                         }
3738                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3739                                         STRLENOF( SLIMITSTR "=") ) )
3740                 {
3741                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3742                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3743                                 si->si_slimit = 0;
3744
3745                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3746                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3747                                         "invalid size limit value \"%s\".\n",
3748                                         val );
3749                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3750                                 return 1;
3751                         }
3752                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3753                                         STRLENOF( TLIMITSTR "=" ) ) )
3754                 {
3755                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3756                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3757                                 si->si_tlimit = 0;
3758
3759                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3760                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3761                                         "invalid time limit value \"%s\".\n",
3762                                         val );
3763                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3764                                 return 1;
3765                         }
3766                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3767                                         STRLENOF( SYNCDATASTR "=" ) ) )
3768                 {
3769                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3770                         si->si_syncdata = verb_to_mask( val, datamodes );
3771                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3772                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3773                                 "Error: parse_syncrepl_line: "
3774                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3775                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3776                         return -1;
3777                 }
3778         }
3779
3780         if ( gots != GOT_ALL ) {
3781                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3782                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3783                         gots & GOT_ID ? "" : " "IDSTR,
3784                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3785                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3786                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3787                 return -1;
3788         }
3789
3790         return 0;
3791 }
3792
3793 static int
3794 add_syncrepl(
3795         ConfigArgs *c )
3796 {
3797         syncinfo_t *si;
3798         int     rc = 0;
3799
3800         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3801                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3802                         "operations required for syncrepl", c->be->be_type );
3803                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3804                 return 1;
3805         }
3806         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3807                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3808                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3809                 return 1;
3810         }
3811         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3812
3813         if ( si == NULL ) {
3814                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3815                 return 1;
3816         }
3817
3818         si->si_bindconf.sb_tls = SB_TLS_OFF;
3819         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3820         si->si_schemachecking = 0;
3821         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3822                 &si->si_filterstr );
3823         si->si_base.bv_val = NULL;
3824         si->si_scope = LDAP_SCOPE_SUBTREE;
3825         si->si_attrsonly = 0;
3826         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3827         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3828         si->si_attrs = NULL;
3829         si->si_allattrs = 0;
3830         si->si_allopattrs = 0;
3831         si->si_exattrs = NULL;
3832         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3833         si->si_interval = 86400;
3834         si->si_retryinterval = NULL;
3835         si->si_retrynum_init = NULL;
3836         si->si_retrynum = NULL;
3837         si->si_manageDSAit = 0;
3838         si->si_tlimit = 0;
3839         si->si_slimit = 0;
3840         si->si_conn_setup = 0;
3841
3842         si->si_presentlist = NULL;
3843         LDAP_LIST_INIT( &si->si_nonpresentlist );
3844         ldap_pvt_thread_mutex_init( &si->si_mutex );
3845
3846         rc = parse_syncrepl_line( c, si );
3847
3848         if ( rc == 0 ) {
3849                 /* Must be LDAPv3 because we need controls */
3850                 switch ( si->si_bindconf.sb_version ) {
3851                 case 0:
3852                         /* not explicitly set */
3853                         si->si_bindconf.sb_version = LDAP_VERSION3;
3854                         break;
3855                 case 3:
3856                         /* explicitly set */
3857                         break;
3858                 default:
3859                         Debug( LDAP_DEBUG_ANY,
3860                                 "version %d incompatible with syncrepl\n",
3861                                 si->si_bindconf.sb_version, 0, 0 );
3862                         syncinfo_free( si, 0 );
3863                         return 1;
3864                 }
3865
3866                 si->si_be = c->be;
3867                 if ( slapMode & SLAP_SERVER_MODE ) {
3868                         Listener **l = slapd_get_listeners();
3869                         int isMe = 0;
3870
3871                         /* check if URL points to current server. If so, ignore
3872                          * this configuration. We require an exact match. Just
3873                          * in case they really want to do this, they can vary
3874                          * the case of the URL to allow it.
3875                          */
3876                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3877                                 int i;
3878                                 for ( i=0; l[i]; i++ ) {
3879                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3880                                                 isMe = 1;
3881                                                 break;
3882                                         }
3883                                 }
3884                         }
3885
3886                         if ( !isMe ) {
3887                                 init_syncrepl( si );
3888                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3889                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3890                                         si->si_ridtxt );
3891                                 if ( si->si_re )
3892                                         rc = config_sync_shadow( c ) ? -1 : 0;
3893                                 else
3894                                         rc = -1;
3895                         }
3896                 } else {
3897                         /* mirrormode still needs to see this flag in tool mode */
3898                         rc = config_sync_shadow( c ) ? -1 : 0;
3899                 }
3900         }
3901
3902 #ifdef HAVE_TLS
3903         /* Use main slapd defaults */
3904         bindconf_tls_defaults( &si->si_bindconf );
3905 #endif
3906         if ( rc < 0 ) {
3907                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3908                 syncinfo_free( si, 0 );
3909                 return 1;
3910         } else {
3911                 Debug( LDAP_DEBUG_CONFIG,
3912                         "Config: ** successfully added syncrepl \"%s\"\n",
3913                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3914                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3915                 if ( !si->si_schemachecking ) {
3916                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3917                 }
3918                 if ( c->be->be_syncinfo ) {
3919                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3920                 } else {
3921                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3922                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3923                 }
3924                 si->si_next = c->be->be_syncinfo;
3925                 c->be->be_syncinfo = si;
3926                 return 0;
3927         }
3928 }
3929
3930 static void
3931 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3932 {
3933         struct berval bc, uri;
3934         char buf[BUFSIZ*2], *ptr;
3935         int i;
3936
3937 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3938
3939         BER_BVZERO( bv );
3940
3941         /* temporarily inhibit bindconf from printing URI */
3942         uri = si->si_bindconf.sb_uri;
3943         BER_BVZERO( &si->si_bindconf.sb_uri );
3944         si->si_bindconf.sb_version = 0;
3945         bindconf_unparse( &si->si_bindconf, &bc );
3946         si->si_bindconf.sb_uri = uri;
3947         si->si_bindconf.sb_version = LDAP_VERSION3;
3948
3949         ptr = buf;
3950         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3951         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
3952                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3953         if ( ptr - buf >= sizeof( buf ) ) return;
3954         if ( !BER_BVISNULL( &bc ) ) {
3955                 if ( WHATSLEFT <= bc.bv_len ) {
3956                         free( bc.bv_val );
3957                         return;
3958                 }
3959                 ptr = lutil_strcopy( ptr, bc.bv_val );
3960                 free( bc.bv_val );
3961         }
3962         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3963                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3964                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3965                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3966                 *ptr++ = '"';
3967         }
3968         if ( !BER_BVISNULL( &si->si_base ) ) {
3969                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3970                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3971                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3972                 *ptr++ = '"';
3973         }
3974         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3975                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3976                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3977                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3978                 *ptr++ = '"';
3979         }
3980         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3981                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3982                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3983                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3984                 *ptr++ = '"';
3985         }
3986         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
3987                 if ( si->si_scope == scopes[i].val ) {
3988                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
3989                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
3990                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
3991                         break;
3992                 }
3993         }
3994         if ( si->si_attrsonly ) {
3995                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3996                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
3997         }
3998         if ( si->si_anfile ) {
3999                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4000                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4001                 ptr = lutil_strcopy( ptr, si->si_anfile );
4002                 *ptr++ = '"';
4003         } else if ( si->si_allattrs || si->si_allopattrs ||
4004                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4005         {
4006                 char *old;
4007
4008                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4009                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4010                 old = ptr;
4011                 /* FIXME: add check for overflow */
4012                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4013                 if ( si->si_allattrs ) {
4014                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4015                         if ( old != ptr ) *ptr++ = ',';
4016                         *ptr++ = '*';
4017                 }
4018                 if ( si->si_allopattrs ) {
4019                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4020                         if ( old != ptr ) *ptr++ = ',';
4021                         *ptr++ = '+';
4022                 }
4023                 *ptr++ = '"';
4024         }
4025         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4026                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4027                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4028                 /* FIXME: add check for overflow */
4029                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4030         }
4031         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4032         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4033         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4034
4035         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4036         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4037         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4038                 "refreshAndPersist" : "refreshOnly" );
4039
4040         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4041                 int dd, hh, mm, ss;
4042
4043                 dd = si->si_interval;
4044                 ss = dd % 60;
4045                 dd /= 60;
4046                 mm = dd % 60;
4047                 dd /= 60;
4048                 hh = dd % 24;
4049                 dd /= 24;
4050                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4051                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4052                 if ( ptr - buf >= sizeof( buf ) ) return;
4053         } else if ( si->si_retryinterval ) {
4054                 int space=0;
4055                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4056                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4057                 for (i=0; si->si_retryinterval[i]; i++) {
4058                         if ( space ) *ptr++ = ' ';
4059                         space = 1;
4060                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4061                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4062                                 *ptr++ = '+';
4063                         else
4064                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4065                 }
4066                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4067                 *ptr++ = '"';
4068         }
4069
4070         if ( si->si_slimit ) {
4071                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4072                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4073                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4074         }
4075
4076         if ( si->si_tlimit ) {
4077                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4078                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4079                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4080         }
4081
4082         if ( si->si_syncdata ) {
4083                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4084                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4085                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4086                         ptr = lutil_strcopy( ptr, bc.bv_val );
4087                 }
4088         }
4089         bc.bv_len = ptr - buf;
4090         bc.bv_val = buf;
4091         ber_dupbv( bv, &bc );
4092 }
4093
4094 int
4095 syncrepl_config( ConfigArgs *c )
4096 {
4097         if (c->op == SLAP_CONFIG_EMIT) {
4098                 if ( c->be->be_syncinfo ) {
4099                         struct berval bv;
4100                         syncinfo_t *si;
4101
4102                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4103                                 syncrepl_unparse( si, &bv );
4104                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4105                         }
4106                         return 0;
4107                 }
4108                 return 1;
4109         } else if ( c->op == LDAP_MOD_DELETE ) {
4110                 cookie_state *cs = NULL;
4111                 if ( c->be->be_syncinfo ) {
4112                         syncinfo_t *si, **sip;
4113                         int i;
4114
4115                         cs = c->be->be_syncinfo->si_cookieState;
4116                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4117                                 si = *sip;
4118                                 if ( c->valx == -1 || i == c->valx ) {
4119                                         *sip = si->si_next;
4120                                         /* If the task is currently active, we have to leave
4121                                          * it running. It will exit on its own. This will only
4122                                          * happen when running on the cn=config DB.
4123                                          */
4124                                         if ( si->si_re &&
4125                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
4126                                                 si->si_ctype = 0;
4127                                         } else {
4128                                                 syncinfo_free( si, 0 );
4129                                         }
4130                                         if ( i == c->valx )
4131                                                 break;
4132                                 } else {
4133                                         sip = &si->si_next;
4134                                 }
4135                         }
4136                 }
4137                 if ( !c->be->be_syncinfo ) {
4138                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4139                         if ( cs ) {
4140                                 ber_bvarray_free( cs->cs_vals );
4141                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4142                                 ch_free( cs );
4143                         }
4144                 }
4145                 return 0;
4146         }
4147         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4148                 Debug(LDAP_DEBUG_ANY, "%s: "
4149                         "syncrepl: database already shadowed.\n",
4150                         c->log, 0, 0);
4151                 return(1);
4152         } else {
4153                 return add_syncrepl( c );
4154         }
4155 }