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[8];
  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 void avl_ber_bvfree( void * );
 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 static int syncrepl_updateCookie(
 117                                         syncinfo_t *, Operation *, struct berval *,
 118                                         struct sync_cookie * );
 119 static struct berval * slap_uuidstr_from_normalized(
 120                                         struct berval *, struct berval *, void * );
 121
 122 /* callback functions */
 123 static int dn_callback( Operation *, SlapReply * );
 124 static int nonpresent_callback( Operation *, SlapReply * );
 125 static int null_callback( Operation *, SlapReply * );
 126
 127 static AttributeDescription *sync_descs[4];
 128
 129 static void
 130 init_syncrepl(syncinfo_t *si)
 131 {
 132         int i, j, k, l, n;
 133         char **attrs, **exattrs;
 134
 135         if ( !sync_descs[0] ) {
 136                 sync_descs[0] = slap_schema.si_ad_objectClass;
 137                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 138                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 139                 sync_descs[3] = NULL;
 140         }
 141
 142         if ( si->si_allattrs && si->si_allopattrs )
 143                 attrs = NULL;
 144         else
 145                 attrs = anlist2attrs( si->si_anlist );
 146
 147         if ( attrs ) {
 148                 if ( si->si_allattrs ) {
 149                         i = 0;
 150                         while ( attrs[i] ) {
 151                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 152                                         for ( j = i; attrs[j] != NULL; j++ ) {
 153                                                 if ( j == i )
 154                                                         ch_free( attrs[i] );
 155                                                 attrs[j] = attrs[j+1];
 156                                         }
 157                                 } else {
 158                                         i++;
 159                                 }
 160                         }
 161                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 162                         attrs[i] = ch_strdup("*");
 163                         attrs[i + 1] = NULL;
 164
 165                 } else if ( si->si_allopattrs ) {
 166                         i = 0;
 167                         while ( attrs[i] ) {
 168                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 169                                         for ( j = i; attrs[j] != NULL; j++ ) {
 170                                                 if ( j == i )
 171                                                         ch_free( attrs[i] );
 172                                                 attrs[j] = attrs[j+1];
 173                                         }
 174                                 } else {
 175                                         i++;
 176                                 }
 177                         }
 178                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 179                         attrs[i] = ch_strdup("+");
 180                         attrs[i + 1] = NULL;
 181                 }
 182
 183                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 184                         j = 0;
 185                         while ( attrs[j] ) {
 186                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 187                                         for ( k = j; attrs[k] != NULL; k++ ) {
 188                                                 if ( k == j )
 189                                                         ch_free( attrs[k] );
 190                                                 attrs[k] = attrs[k+1];
 191                                         }
 192                                 } else {
 193                                         j++;
 194                                 }
 195                         }
 196                 }
 197
 198                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 199
 200                 if ( si->si_allopattrs ) {
 201                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 202                 } else {
 203                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 204                 }
 205
 206                 if ( attrs == NULL ) {
 207                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0, 0, 0 );
 208                 }
 209
 210                 /* Add Attributes */
 211                 if ( si->si_allopattrs ) {
 212                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 213                 } else {
 214                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 215                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 216                         }
 217                 }
 218                 attrs[ n ] = NULL;
 219
 220         } else {
 221
 222                 i = 0;
 223                 if ( si->si_allattrs == si->si_allopattrs ) {
 224                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 225                         attrs[i++] = ch_strdup( "*" );
 226                         attrs[i++] = ch_strdup( "+" );
 227                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 228                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 229                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 230                         attrs[i++] = ch_strdup( "*" );
 231                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 232                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 233                         }
 234                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 235                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 236                         attrs[i++] = ch_strdup( "+" );
 237                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 238                 }
 239                 attrs[i] = NULL;
 240         }
 241
 242         si->si_attrs = attrs;
 243
 244         exattrs = anlist2attrs( si->si_exanlist );
 245
 246         if ( exattrs ) {
 247                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 248
 249                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 250                         j = 0;
 251                         while ( exattrs[j] != NULL ) {
 252                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 253                                         ch_free( exattrs[j] );
 254                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 255                                                 exattrs[k] = exattrs[k+1];
 256                                         }
 257                                 } else {
 258                                         j++;
 259                                 }
 260                         }
 261                 }
 262
 263                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 264                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 265                                 ObjectClass     *oc;
 266                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 267                                         k = 0;
 268                                         while ( oc->soc_required[k] ) {
 269                                                 if ( !strcmp( exattrs[i],
 270                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 271                                                         ch_free( exattrs[i] );
 272                                                         for ( l = i; exattrs[l]; l++ ) {
 273                                                                 exattrs[l] = exattrs[l+1];
 274                                                         }
 275                                                 } else {
 276                                                         k++;
 277                                                 }
 278                                         }
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 284
 285                 if ( i != n )
 286                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 287         }
 288
 289         si->si_exattrs = exattrs;
 290 }
 291
 292 typedef struct logschema {
 293         struct berval ls_dn;
 294         struct berval ls_req;
 295         struct berval ls_mod;
 296         struct berval ls_newRdn;
 297         struct berval ls_delRdn;
 298         struct berval ls_newSup;
 299 } logschema;
 300
 301 static logschema changelog_sc = {
 302         BER_BVC("targetDN"),
 303         BER_BVC("changeType"),
 304         BER_BVC("changes"),
 305         BER_BVC("newRDN"),
 306         BER_BVC("deleteOldRDN"),
 307         BER_BVC("newSuperior")
 308 };
 309
 310 static logschema accesslog_sc = {
 311         BER_BVC("reqDN"),
 312         BER_BVC("reqType"),
 313         BER_BVC("reqMod"),
 314         BER_BVC("reqNewRDN"),
 315         BER_BVC("reqDeleteOldRDN"),
 316         BER_BVC("reqNewSuperior")
 317 };
 318
 319 static int
 320 ldap_sync_search(
 321         syncinfo_t *si,
 322         void *ctx )
 323 {
 324         BerElementBuffer berbuf;
 325         BerElement *ber = (BerElement *)&berbuf;
 326         LDAPControl c[2], *ctrls[3];
 327         struct timeval timeout;
 328         ber_int_t       msgid;
 329         int rc;
 330         int rhint;
 331         char *base;
 332         char **attrs, *lattrs[8];
 333         char *filter;
 334         int attrsonly;
 335         int scope;
 336
 337         /* setup LDAP SYNC control */
 338         ber_init2( ber, NULL, LBER_USE_DER );
 339         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 340
 341         /* If we're using a log but we have no state, then fallback to
 342          * normal mode for a full refresh.
 343          */
 344         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 345                 si->si_logstate = SYNCLOG_FALLBACK;
 346         }
 347
 348         /* Use the log parameters if we're in log mode */
 349         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 350                 logschema *ls;
 351                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 352                         ls = &accesslog_sc;
 353                 else
 354                         ls = &changelog_sc;
 355                 lattrs[0] = ls->ls_dn.bv_val;
 356                 lattrs[1] = ls->ls_req.bv_val;
 357                 lattrs[2] = ls->ls_mod.bv_val;
 358                 lattrs[3] = ls->ls_newRdn.bv_val;
 359                 lattrs[4] = ls->ls_delRdn.bv_val;
 360                 lattrs[5] = ls->ls_newSup.bv_val;
 361                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 362                 lattrs[7] = NULL;
 363
 364                 rhint = 0;
 365                 base = si->si_logbase.bv_val;
 366                 filter = si->si_logfilterstr.bv_val;
 367                 attrs = lattrs;
 368                 attrsonly = 0;
 369                 scope = LDAP_SCOPE_SUBTREE;
 370         } else {
 371                 rhint = 1;
 372                 base = si->si_base.bv_val;
 373                 filter = si->si_filterstr.bv_val;
 374                 attrs = si->si_attrs;
 375                 attrsonly = si->si_attrsonly;
 376                 scope = si->si_scope;
 377         }
 378         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 379                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 380         } else {
 381                 si->si_type = si->si_ctype;
 382         }
 383
 384         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 385         {
 386                 ber_printf( ber, "{eOb}",
 387                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 388         } else {
 389                 ber_printf( ber, "{eb}",
 390                         abs(si->si_type), rhint );
 391         }
 392
 393         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 394                 ber_free_buf( ber );
 395                 return rc;
 396         }
 397
 398         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 399         c[0].ldctl_iscritical = si->si_type < 0;
 400         ctrls[0] = &c[0];
 401
 402         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 403                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 404                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 405                 c[1].ldctl_iscritical = 1;
 406                 ctrls[1] = &c[1];
 407                 ctrls[2] = NULL;
 408         } else {
 409                 ctrls[1] = NULL;
 410         }
 411
 412         timeout.tv_sec = si->si_tlimit;
 413         timeout.tv_usec = 0;
 414
 415         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 416                 ctrls, NULL, si->si_tlimit > 0 ? &timeout : NULL,
 417                 si->si_slimit, &msgid );
 418         ber_free_buf( ber );
 419         return rc;
 420 }
 421
 422 static int
 423 do_syncrep1(
 424         Operation *op,
 425         syncinfo_t *si )
 426 {
 427         int     rc;
 428         int cmdline_cookie_found = 0;
 429
 430         struct sync_cookie      *sc = NULL;
 431 #ifdef HAVE_TLS
 432         void    *ssl;
 433 #endif
 434
 435         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 436         if ( rc != LDAP_SUCCESS ) {
 437                 goto done;
 438         }
 439         op->o_protocol = LDAP_VERSION3;
 440
 441         /* Set SSF to strongest of TLS, SASL SSFs */
 442         op->o_sasl_ssf = 0;
 443         op->o_tls_ssf = 0;
 444         op->o_transport_ssf = 0;
 445 #ifdef HAVE_TLS
 446         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 447                 == LDAP_SUCCESS && ssl != NULL )
 448         {
 449                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 450         }
 451 #endif /* HAVE_TLS */
 452         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 453         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 454                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 455
 456         /* We've just started up, or the remote server hasn't sent us
 457          * any meaningful state.
 458          */
 459         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 460                 int i;
 461
 462                 si->si_syncCookie.rid = si->si_rid;
 463                 si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 464                         slap_serverID;
 465
 466                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 467                         if ( si->si_rid == sc->rid ) {
 468                                 cmdline_cookie_found = 1;
 469                                 break;
 470                         }
 471                 }
 472
 473                 if ( cmdline_cookie_found ) {
 474                         /* cookie is supplied in the command line */
 475
 476                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 477
 478                         /* ctxcsn wasn't parsed yet, do it now */
 479                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 480                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 481                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 482                         slap_sync_cookie_free( sc, 1 );
 483                 } else {
 484                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 485                         if ( !si->si_cookieState->cs_num ) {
 486                                 /* get contextCSN shadow replica from database */
 487                                 BerVarray csn = NULL;
 488                                 void *ctx = op->o_tmpmemctx;
 489
 490                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 491                                 op->o_req_dn = op->o_req_ndn;
 492
 493                                 /* try to read stored contextCSN */
 494                                 op->o_tmpmemctx = NULL;
 495                                 backend_attribute( op, NULL, &op->o_req_ndn,
 496                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 497                                 op->o_tmpmemctx = ctx;
 498                                 if ( csn ) {
 499                                         si->si_cookieState->cs_vals = csn;
 500                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 501                                         si->si_cookieState->cs_num = i;
 502                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 503                                 }
 504                         }
 505                         if ( si->si_cookieState->cs_num ) {
 506                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 507                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 508                                         si->si_cookieState->cs_vals, NULL )) {
 509                                         rc = LDAP_NO_MEMORY;
 510                                         goto done;
 511                                 }
 512                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 513                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 514                                         sizeof(int) );
 515                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 516                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 517                         }
 518                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 519                 }
 520
 521                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 522                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 523                         si->si_syncCookie.sid );
 524         } else {
 525                 AttributeName at[2];
 526                 Attribute a = { slap_schema.si_ad_contextCSN };
 527                 Entry e = {0};
 528                 SlapReply rs = {0};
 529                 int i, j, changed = 0;
 530
 531                 /* Look for contextCSN from syncprov overlay. If
 532                  * there's no overlay, this will be a no-op. That means
 533                  * this is a pure consumer, so local changes will not be
 534                  * allowed, and all changes will already be reflected in
 535                  * the cookieState.
 536                  */
 537                 e.e_attrs = &a;
 538                 e.e_name = si->si_wbe->be_suffix[0];
 539                 e.e_nname = si->si_wbe->be_nsuffix[0];
 540                 rs.sr_entry = &e;
 541                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 542                 at[0].an_name = a.a_desc->ad_cname;
 543                 at[0].an_desc = a.a_desc;
 544                 BER_BVZERO( &at[1].an_name );
 545
 546                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 547                 rc = backend_operational( op, &rs );
 548                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 549                         int num;
 550                         for (i=0; !BER_BVISNULL( &a.a_vals[i] ); i++) ;
 551                         num = i;
 552                         /* check for differences */
 553                         if ( num != si->si_cookieState->cs_num ) {
 554                                 changed = 1;
 555                         } else {
 556                                 for ( i=0; i<num; i++ ) {
 557                                         if ( ber_bvcmp( &a.a_vals[i],
 558                                                 &si->si_cookieState->cs_vals[i] )) {
 559                                                 changed =1;
 560                                                 break;
 561                                         }
 562                                 }
 563                         }
 564                         if ( changed ) {
 565                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 566                                 ch_free( si->si_cookieState->cs_sids );
 567                                 si->si_cookieState->cs_num = num;
 568                                 si->si_cookieState->cs_vals = a.a_vals;
 569                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 570                                         num, NULL );
 571                                 si->si_cookieState->cs_age++;
 572                         } else {
 573                                 ber_bvarray_free( a.a_vals );
 574                         }
 575                         changed = 0;
 576                 }
 577                 /* See if the cookieState has changed due to anything outside
 578                  * this particular consumer. That includes other consumers in
 579                  * the same context, or local changes detected above.
 580                  */
 581                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 582                         si->si_cookieState->cs_age ) {
 583
 584                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 585                                 /* bogus, just dup everything */
 586                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 587                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 588                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 589                                                 si->si_cookieState->cs_vals, NULL );
 590                                         changed = 1;
 591                                         break;
 592                                 }
 593                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 594                                         if ( si->si_syncCookie.sids[i] !=
 595                                                 si->si_cookieState->cs_sids[j] )
 596                                                 continue;
 597                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 598                                                 &si->si_cookieState->cs_vals[j] ))
 599                                                 break;
 600                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 601                                                 &si->si_cookieState->cs_vals[j] );
 602                                         changed = 1;
 603                                         break;
 604                                 }
 605                         }
 606                         if ( changed ) {
 607                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 608                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 609                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 610                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 611                         }
 612                 }
 613                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 614         }
 615
 616         rc = ldap_sync_search( si, op->o_tmpmemctx );
 617
 618         if( rc != LDAP_SUCCESS ) {
 619                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 620                         "ldap_search_ext: %s (%d)\n",
 621                         si->si_ridtxt, ldap_err2string( rc ), rc );
 622         }
 623
 624 done:
 625         if ( rc ) {
 626                 if ( si->si_ld ) {
 627                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 628                         si->si_ld = NULL;
 629                 }
 630         }
 631
 632         return rc;
 633 }
 634
 635 static int
 636 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 637 {
 638         int i, j, match = 0;
 639         const char *text;
 640
 641         *which = 0;
 642
 643         if ( sc1->numcsns < sc2->numcsns ) {
 644                 *which = sc1->numcsns;
 645                 return -1;
 646         }
 647
 648         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 649                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 650                         if ( sc1->sids[i] != sc2->sids[j] )
 651                                 continue;
 652                         value_match( &match, slap_schema.si_ad_entryCSN,
 653                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 654                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 655                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 656                         if ( match < 0 ) {
 657                                 *which = j;
 658                                 return match;
 659                         }
 660                         break;
 661                 }
 662         }
 663         return match;
 664 }
 665
 666 static int
 667 do_syncrep2(
 668         Operation *op,
 669         syncinfo_t *si )
 670 {
 671         LDAPControl     **rctrls = NULL;
 672         LDAPControl     *rctrlp;
 673
 674         BerElementBuffer berbuf;
 675         BerElement      *ber = (BerElement *)&berbuf;
 676
 677         LDAPMessage     *res = NULL;
 678         LDAPMessage     *msg = NULL;
 679
 680         char            *retoid = NULL;
 681         struct berval   *retdata = NULL;
 682
 683         Entry           *entry = NULL;
 684
 685         int             syncstate;
 686         struct berval   syncUUID = BER_BVNULL;
 687         struct sync_cookie      syncCookie = { NULL };
 688         struct sync_cookie      syncCookie_req = { NULL };
 689         struct berval           cookie = BER_BVNULL;
 690
 691         int     rc, err;
 692         ber_len_t       len;
 693
 694         struct berval   *psub;
 695         Modifications   *modlist = NULL;
 696
 697         int                             match, m;
 698
 699         struct timeval *tout_p = NULL;
 700         struct timeval tout = { 0, 0 };
 701
 702         int             refreshDeletes = 0;
 703         int             refreshDone = 1;
 704         BerVarray syncUUIDs = NULL;
 705         ber_tag_t si_tag;
 706
 707         if ( slapd_shutdown ) {
 708                 rc = -2;
 709                 goto done;
 710         }
 711
 712         ber_init2( ber, NULL, LBER_USE_DER );
 713         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 714
 715         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 716
 717         psub = &si->si_be->be_nsuffix[0];
 718
 719         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 720
 721         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 722                 tout_p = &tout;
 723         } else {
 724                 tout_p = NULL;
 725         }
 726
 727         while ( ( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 728                 tout_p, &res ) ) > 0 )
 729         {
 730                 if ( slapd_shutdown ) {
 731                         rc = -2;
 732                         goto done;
 733                 }
 734                 for( msg = ldap_first_message( si->si_ld, res );
 735                         msg != NULL;
 736                         msg = ldap_next_message( si->si_ld, msg ) )
 737                 {
 738                         if ( slapd_shutdown ) {
 739                                 rc = -2;
 740                                 goto done;
 741                         }
 742                         switch( ldap_msgtype( msg ) ) {
 743                         case LDAP_RES_SEARCH_ENTRY:
 744                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 745                                 /* we can't work without the control */
 746                                 rctrlp = NULL;
 747                                 if ( rctrls ) {
 748                                         /* NOTE: make sure we use the right one;
 749                                          * a better approach would be to run thru
 750                                          * the whole list and take care of all */
 751                                         rctrlp = ldap_find_control( LDAP_CONTROL_SYNC_STATE, rctrls );
 752                                 }
 753                                 if ( rctrlp == NULL ) {
 754                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 755                                                 "got search entry without "
 756                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 757                                         rc = -1;
 758                                         goto done;
 759                                 }
 760                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 761                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 762                                 /* FIXME: what if syncUUID is NULL or empty?
 763                                  * (happens with back-sql...) */
 764                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 765                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 766                                                 "got empty syncUUID\n", si->si_ridtxt, 0, 0 );
 767                                         ldap_controls_free( rctrls );
 768                                         rc = -1;
 769                                         goto done;
 770                                 }
 771                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 772                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 773                                         if ( !BER_BVISNULL( &cookie ) ) {
 774                                                 ch_free( syncCookie.octet_str.bv_val );
 775                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 776                                         }
 777                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 778                                         {
 779                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 780                                         }
 781                                 }
 782                                 rc = 0;
 783                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 784                                         modlist = NULL;
 785                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 786                                                 syncCookie.ctxcsn )
 787                                         {
 788                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 789                                         }
 790                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 791                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 792                                 {
 793                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 794                                                 syncstate, &syncUUID ) ) == LDAP_SUCCESS &&
 795                                                 syncCookie.ctxcsn )
 796                                         {
 797                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 798                                         }
 799                                 }
 800                                 ldap_controls_free( rctrls );
 801                                 if ( modlist ) {
 802                                         slap_mods_free( modlist, 1 );
 803                                 }
 804                                 if ( rc )
 805                                         goto done;
 806                                 break;
 807
 808                         case LDAP_RES_SEARCH_REFERENCE:
 809                                 Debug( LDAP_DEBUG_ANY,
 810                                         "do_syncrep2: %s reference received error\n",
 811                                         si->si_ridtxt, 0, 0 );
 812                                 break;
 813
 814                         case LDAP_RES_SEARCH_RESULT:
 815                                 Debug( LDAP_DEBUG_SYNC,
 816                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 817                                         si->si_ridtxt, 0, 0 );
 818                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 819                                         &rctrls, 0 );
 820 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 821                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 822                                         /* map old result code to registered code */
 823                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 824                                 }
 825 #endif
 826                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 827                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 828                                                 si->si_logstate = SYNCLOG_FALLBACK;
 829                                         }
 830                                         rc = err;
 831                                         goto done;
 832                                 }
 833                                 if ( rctrls ) {
 834                                         rctrlp = *rctrls;
 835                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 836
 837                                         ber_scanf( ber, "{" /*"}"*/);
 838                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 839                                                 ber_scanf( ber, "m", &cookie );
 840                                                 if ( !BER_BVISNULL( &cookie ) ) {
 841                                                         ch_free( syncCookie.octet_str.bv_val );
 842                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 843                                                 }
 844                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 845                                                 {
 846                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 847                                                 }
 848                                         }
 849                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 850                                         {
 851                                                 ber_scanf( ber, "b", &refreshDeletes );
 852                                         }
 853                                         ber_scanf( ber, /*"{"*/ "}" );
 854                                 }
 855                                 if ( !syncCookie.ctxcsn ) {
 856                                         match = 1;
 857                                 } else if ( !syncCookie_req.ctxcsn ) {
 858                                         match = -1;
 859                                         m = 0;
 860                                 } else {
 861                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 862                                 }
 863                                 if ( rctrls ) {
 864                                         ldap_controls_free( rctrls );
 865                                 }
 866                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 867                                         /* FIXME : different error behaviors according to
 868                                          *      1) err code : LDAP_BUSY ...
 869                                          *      2) on err policy : stop service, stop sync, retry
 870                                          */
 871                                         if ( refreshDeletes == 0 && match < 0 &&
 872                                                 err == LDAP_SUCCESS )
 873                                         {
 874                                                 syncrepl_del_nonpresent( op, si, NULL,
 875                                                         &syncCookie.ctxcsn[m] );
 876                                         } else {
 877                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 878                                                 si->si_presentlist = NULL;
 879                                         }
 880                                 }
 881                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 882                                 {
 883                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 884                                 }
 885                                 if ( err == LDAP_SUCCESS
 886                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 887                                         si->si_logstate = SYNCLOG_LOGGING;
 888                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 889                                 } else {
 890                                         rc = -2;
 891                                 }
 892                                 goto done;
 893                                 break;
 894
 895                         case LDAP_RES_INTERMEDIATE:
 896                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 897                                         &retoid, &retdata, NULL, 0 );
 898                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 899                                         ber_init2( ber, retdata, LBER_USE_DER );
 900
 901                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 902                                         ber_tag_t tag;
 903                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 904                                                 Debug( LDAP_DEBUG_SYNC,
 905                                                         "do_syncrep2: %s %s - %s\n",
 906                                                         si->si_ridtxt,
 907                                                         "LDAP_RES_INTERMEDIATE",
 908                                                         "NEW_COOKIE" );
 909                                                 ber_scanf( ber, "tm", &tag, &cookie );
 910                                                 break;
 911                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 912                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 913                                                 Debug( LDAP_DEBUG_SYNC,
 914                                                         "do_syncrep2: %s %s - %s\n",
 915                                                         si->si_ridtxt,
 916                                                         "LDAP_RES_INTERMEDIATE",
 917                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 918                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 919                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 920                                                         si->si_refreshDelete = 1;
 921                                                 } else {
 922                                                         si->si_refreshPresent = 1;
 923                                                 }
 924                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 925                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 926                                                 {
 927                                                         ber_scanf( ber, "m", &cookie );
 928                                                         if ( !BER_BVISNULL( &cookie ) ) {
 929                                                                 ch_free( syncCookie.octet_str.bv_val );
 930                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 931                                                         }
 932                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 933                                                         {
 934                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 935                                                         }
 936                                                 }
 937                                                 if ( ber_peek_tag( ber, &len ) ==
 938                                                         LDAP_TAG_REFRESHDONE )
 939                                                 {
 940                                                         ber_scanf( ber, "b", &refreshDone );
 941                                                 }
 942                                                 ber_scanf( ber, /*"{"*/ "}" );
 943                                                 break;
 944                                         case LDAP_TAG_SYNC_ID_SET:
 945                                                 Debug( LDAP_DEBUG_SYNC,
 946                                                         "do_syncrep2: %s %s - %s\n",
 947                                                         si->si_ridtxt,
 948                                                         "LDAP_RES_INTERMEDIATE",
 949                                                         "SYNC_ID_SET" );
 950                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 951                                                 if ( ber_peek_tag( ber, &len ) ==
 952                                                         LDAP_TAG_SYNC_COOKIE )
 953                                                 {
 954                                                         ber_scanf( ber, "m", &cookie );
 955                                                         if ( !BER_BVISNULL( &cookie ) ) {
 956                                                                 ch_free( syncCookie.octet_str.bv_val );
 957                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 958                                                         }
 959                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 960                                                         {
 961                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 962                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
 963                                                         }
 964                                                 }
 965                                                 if ( ber_peek_tag( ber, &len ) ==
 966                                                         LDAP_TAG_REFRESHDELETES )
 967                                                 {
 968                                                         ber_scanf( ber, "b", &refreshDeletes );
 969                                                 }
 970                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 971                                                 ber_scanf( ber, /*"{"*/ "}" );
 972                                                 if ( refreshDeletes ) {
 973                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
 974                                                                 &syncCookie.ctxcsn[m] );
 975                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
 976                                                 } else {
 977                                                         int i;
 978                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
 979                                                                 struct berval *syncuuid_bv;
 980                                                                 syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 981                                                                 slap_sl_free( syncUUIDs[i].bv_val,op->o_tmpmemctx );
 982                                                                 if ( avl_insert( &si->si_presentlist,
 983                                                                         (caddr_t) syncuuid_bv,
 984                                                                         syncuuid_cmp, avl_dup_error ) )
 985                                                                 {
 986                                                                         ber_bvfree( syncuuid_bv );
 987                                                                 }
 988                                                         }
 989                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
 990                                                 }
 991                                                 slap_sync_cookie_free( &syncCookie, 0 );
 992                                                 break;
 993                                         default:
 994                                                 Debug( LDAP_DEBUG_ANY,
 995                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
 996                                                         si->si_ridtxt, (long) si_tag, 0 );
 997                                                 ldap_memfree( retoid );
 998                                                 ber_bvfree( retdata );
 999                                                 continue;
1000                                         }
1001
1002                                         if ( !syncCookie.ctxcsn ) {
1003                                                 match = 1;
1004                                         } else if ( !syncCookie_req.ctxcsn ) {
1005                                                 match = -1;
1006                                                 m = 0;
1007                                         } else {
1008                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1009                                         }
1010
1011                                         if ( match < 0 ) {
1012                                                 if ( si->si_refreshPresent == 1 ) {
1013                                                         syncrepl_del_nonpresent( op, si, NULL,
1014                                                                 &syncCookie.ctxcsn[m] );
1015                                                 }
1016
1017                                                 if ( syncCookie.ctxcsn )
1018                                                 {
1019                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1020                                                 }
1021                                         }
1022
1023                                         ldap_memfree( retoid );
1024                                         ber_bvfree( retdata );
1025                                         break;
1026
1027                                 } else {
1028                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1029                                                 "unknown intermediate response (%d)\n",
1030                                                 si->si_ridtxt, rc, 0 );
1031                                         ldap_memfree( retoid );
1032                                         ber_bvfree( retdata );
1033                                         break;
1034                                 }
1035                                 break;
1036
1037                         default:
1038                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1039                                         "unknown message\n", si->si_ridtxt, 0, 0 );
1040                                 break;
1041
1042                         }
1043                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1044                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1045                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1046                                 slap_sync_cookie_free( &syncCookie, 0 );
1047                         }
1048                 }
1049                 ldap_msgfree( res );
1050                 res = NULL;
1051         }
1052
1053         if ( rc == -1 ) {
1054                 const char *errstr;
1055
1056                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1057                 errstr = ldap_err2string( rc );
1058
1059                 Debug( LDAP_DEBUG_ANY,
1060                         "do_syncrep2: %s %s\n", si->si_ridtxt, errstr, 0 );
1061         }
1062
1063 done:
1064         slap_sync_cookie_free( &syncCookie, 0 );
1065         slap_sync_cookie_free( &syncCookie_req, 0 );
1066
1067         if ( res ) ldap_msgfree( res );
1068
1069         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1070                 if ( si->si_conn_setup ) {
1071                         ber_socket_t s;
1072                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1073                         connection_client_stop( s );
1074                         si->si_conn_setup = 0;
1075                 }
1076                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1077                 si->si_ld = NULL;
1078         }
1079
1080         return rc;
1081 }
1082
1083 static void *
1084 do_syncrepl(
1085         void    *ctx,
1086         void    *arg )
1087 {
1088         struct re_s* rtask = arg;
1089         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1090         Connection conn = {0};
1091         OperationBuffer opbuf;
1092         Operation *op;
1093         int rc = LDAP_SUCCESS;
1094         int dostop = 0;
1095         ber_socket_t s;
1096         int i, defer = 1;
1097         Backend *be;
1098
1099         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1100
1101         if ( si == NULL )
1102                 return NULL;
1103
1104         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1105
1106         switch( abs( si->si_type ) ) {
1107         case LDAP_SYNC_REFRESH_ONLY:
1108         case LDAP_SYNC_REFRESH_AND_PERSIST:
1109                 break;
1110         default:
1111                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1112                 return NULL;
1113         }
1114
1115         if ( slapd_shutdown ) {
1116                 if ( si->si_ld ) {
1117                         if ( si->si_conn_setup ) {
1118                                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1119                                 connection_client_stop( s );
1120                                 si->si_conn_setup = 0;
1121                         }
1122                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1123                         si->si_ld = NULL;
1124                 }
1125                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1126                 return NULL;
1127         }
1128
1129         op = (Operation *) &opbuf;
1130         connection_fake_init( &conn, op, ctx );
1131
1132         /* use global malloc for now */
1133         op->o_tmpmemctx = NULL;
1134         op->o_tmpmfuncs = &ch_mfuncs;
1135
1136         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1137         op->o_bd = be = si->si_be;
1138         op->o_dn = op->o_bd->be_rootdn;
1139         op->o_ndn = op->o_bd->be_rootndn;
1140         if ( !si->si_schemachecking )
1141                 op->o_no_schema_check = 1;
1142
1143         /* If we're glued, send writes through the glue parent */
1144         if ( !si->si_wbe ) {
1145                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1146                         si->si_wbe = select_backend( &be->be_nsuffix[0], 0, 1 );
1147                 } else {
1148                         si->si_wbe = be;
1149                 }
1150         }
1151
1152         /* Establish session, do search */
1153         if ( !si->si_ld ) {
1154                 si->si_refreshDelete = 0;
1155                 si->si_refreshPresent = 0;
1156                 rc = do_syncrep1( op, si );
1157         }
1158
1159 reload:
1160         /* Process results */
1161         if ( rc == LDAP_SUCCESS ) {
1162                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1163
1164                 rc = do_syncrep2( op, si );
1165                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1166                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1167                         goto reload;
1168                 }
1169
1170                 /* We got deleted while running on cn=config */
1171                 if ( !si->si_ctype ) {
1172                         if ( si->si_conn_setup )
1173                                 dostop = 1;
1174                         rc = -1;
1175                 }
1176
1177                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1178                         /* If we succeeded, enable the connection for further listening.
1179                          * If we failed, tear down the connection and reschedule.
1180                          */
1181                         if ( rc == LDAP_SUCCESS ) {
1182                                 if ( si->si_conn_setup ) {
1183                                         connection_client_enable( s );
1184                                 } else {
1185                                         rc = connection_client_setup( s, do_syncrepl, arg );
1186                                         if ( rc == 0 )
1187                                                 si->si_conn_setup = 1;
1188                                 }
1189                         } else if ( si->si_conn_setup ) {
1190                                 dostop = 1;
1191                         }
1192                 } else {
1193                         if ( rc == -2 ) rc = 0;
1194                 }
1195         }
1196
1197         /* At this point, we have 4 cases:
1198          * 1) for any hard failure, give up and remove this task
1199          * 2) for ServerDown, reschedule this task to run
1200          * 3) for Refresh and Success, reschedule to run
1201          * 4) for Persist and Success, reschedule to defer
1202          */
1203         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1204
1205         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1206                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1207         }
1208
1209         if ( dostop ) {
1210                 connection_client_stop( s );
1211         }
1212
1213         if ( rc == LDAP_SUCCESS ) {
1214                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1215                         defer = 0;
1216                 }
1217                 rtask->interval.tv_sec = si->si_interval;
1218                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1219                 if ( si->si_retrynum ) {
1220                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1221                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1222                         }
1223                         si->si_retrynum[i] = RETRYNUM_TAIL;
1224                 }
1225         } else {
1226                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1227                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1228                                 break;
1229                 }
1230
1231                 if ( !si->si_ctype
1232                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1233                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1234                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1235                         if ( si->si_retrynum[i] > 0 )
1236                                 si->si_retrynum[i]--;
1237                         rtask->interval.tv_sec = si->si_retryinterval[i];
1238                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1239                         slap_wake_listener();
1240                 }
1241         }
1242
1243         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1244         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1245
1246         /* Do final delete cleanup */
1247         if ( !si->si_ctype ) {
1248                 cookie_state *cs = NULL;
1249                 syncinfo_t **sip;
1250
1251                 cs = be->be_syncinfo->si_cookieState;
1252                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1253                 *sip = si->si_next;
1254                 syncinfo_free( si, 0 );
1255                 if ( !be->be_syncinfo ) {
1256                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1257                         if ( cs ) {
1258                                 ch_free( cs->cs_sids );
1259                                 ber_bvarray_free( cs->cs_vals );
1260                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1261                                 ch_free( cs );
1262                         }
1263                 }
1264         }
1265         return NULL;
1266 }
1267
1268 static slap_verbmasks modops[] = {
1269         { BER_BVC("add"), LDAP_REQ_ADD },
1270         { BER_BVC("delete"), LDAP_REQ_DELETE },
1271         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1272         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1273         { BER_BVNULL, 0 }
1274 };
1275
1276 static Modifications *
1277 syncrepl_accesslog_mods(
1278         syncinfo_t *si,
1279         struct berval *vals
1280 )
1281 {
1282         char *colon;
1283         const char *text;
1284         AttributeDescription *ad;
1285         struct berval bv, bv2;
1286         short op;
1287         Modifications *mod = NULL, *modlist = NULL, **modtail;
1288         int i;
1289
1290         modtail = &modlist;
1291
1292         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1293                 ad = NULL;
1294                 bv = vals[i];
1295
1296                 colon = ber_bvchr( &bv, ':' );
1297                 if ( !colon ) {
1298                         /* Invalid */
1299                         continue;
1300                 }
1301
1302                 bv.bv_len = colon - bv.bv_val;
1303                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1304                         /* Invalid */
1305                         continue;
1306                 }
1307
1308                 /* Ignore dynamically generated attrs */
1309                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1310                         continue;
1311                 }
1312
1313                 /* Ignore excluded attrs */
1314                 if ( ldap_charray_inlist( si->si_exattrs,
1315                         ad->ad_type->sat_cname.bv_val ) )
1316                 {
1317                         continue;
1318                 }
1319
1320                 switch(colon[1]) {
1321                 case '+':       op = LDAP_MOD_ADD; break;
1322                 case '-':       op = LDAP_MOD_DELETE; break;
1323                 case '=':       op = LDAP_MOD_REPLACE; break;
1324                 case '#':       op = LDAP_MOD_INCREMENT; break;
1325                 default:        continue;
1326                 }
1327
1328                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1329                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1330                         mod->sml_flags = 0;
1331                         mod->sml_op = op;
1332                         mod->sml_next = NULL;
1333                         mod->sml_desc = ad;
1334                         mod->sml_type = ad->ad_cname;
1335                         mod->sml_values = NULL;
1336                         mod->sml_nvalues = NULL;
1337
1338                         *modtail = mod;
1339                         modtail = &mod->sml_next;
1340                 }
1341                 if ( colon[2] == ' ' ) {
1342                         bv.bv_val = colon + 3;
1343                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1344                         ber_dupbv( &bv2, &bv );
1345                         ber_bvarray_add( &mod->sml_values, &bv2 );
1346                 }
1347         }
1348         return modlist;
1349 }
1350
1351 static Modifications *
1352 syncrepl_changelog_mods(
1353         syncinfo_t *si,
1354         struct berval *vals
1355 )
1356 {
1357         return NULL;    /* FIXME */
1358 }
1359
1360 static int
1361 syncrepl_message_to_op(
1362         syncinfo_t      *si,
1363         Operation       *op,
1364         LDAPMessage     *msg
1365 )
1366 {
1367         BerElement      *ber = NULL;
1368         Modifications   *modlist = NULL;
1369         logschema *ls;
1370         SlapReply rs = { REP_RESULT };
1371         slap_callback cb = { NULL, null_callback, NULL, NULL };
1372
1373         const char      *text;
1374         char txtbuf[SLAP_TEXT_BUFLEN];
1375         size_t textlen = sizeof txtbuf;
1376
1377         struct berval   bdn, dn = BER_BVNULL, ndn;
1378         struct berval   bv, *bvals = NULL;
1379         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1380                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1381                 psup = BER_BVNULL, nsup = BER_BVNULL;
1382         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1383
1384         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1385                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1386                         "Message type should be entry (%d)",
1387                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1388                 return -1;
1389         }
1390
1391         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1392                 ls = &accesslog_sc;
1393         else
1394                 ls = &changelog_sc;
1395
1396         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1397
1398         if ( rc != LDAP_SUCCESS ) {
1399                 Debug( LDAP_DEBUG_ANY,
1400                         "syncrepl_message_to_op: %s dn get failed (%d)",
1401                         si->si_ridtxt, rc, 0 );
1402                 return rc;
1403         }
1404
1405         op->o_tag = LBER_DEFAULT;
1406         op->o_bd = si->si_wbe;
1407
1408         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1409                 == LDAP_SUCCESS ) {
1410                 if ( bv.bv_val == NULL )
1411                         break;
1412
1413                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1414                         bdn = bvals[0];
1415                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1416                         ber_dupbv( &op->o_req_dn, &dn );
1417                         ber_dupbv( &op->o_req_ndn, &ndn );
1418                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1419                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1420                         freeReqDn = 1;
1421                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1422                         int i = verb_to_mask( bvals[0].bv_val, modops );
1423                         if ( i < 0 ) {
1424                                 Debug( LDAP_DEBUG_ANY,
1425                                         "syncrepl_message_to_op: %s unknown op %s",
1426                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1427                                 ch_free( bvals );
1428                                 rc = -1;
1429                                 goto done;
1430                         }
1431                         op->o_tag = modops[i].mask;
1432                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1433                         /* Parse attribute into modlist */
1434                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1435                                 modlist = syncrepl_accesslog_mods( si, bvals );
1436                         } else {
1437                                 modlist = syncrepl_changelog_mods( si, bvals );
1438                         }
1439                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1440                         rdn = bvals[0];
1441                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1442                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1443                                 deleteOldRdn = 1;
1444                         }
1445                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1446                         sup = bvals[0];
1447                 } else if ( !ber_bvstrcasecmp( &bv,
1448                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1449                 {
1450                         slap_queue_csn( op, bvals );
1451                 }
1452                 ch_free( bvals );
1453         }
1454
1455         /* If we didn't get a mod type or a target DN, bail out */
1456         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1457                 rc = -1;
1458                 goto done;
1459         }
1460
1461         op->o_callback = &cb;
1462         slap_op_time( &op->o_time, &op->o_tincr );
1463
1464         switch( op->o_tag ) {
1465         case LDAP_REQ_ADD:
1466         case LDAP_REQ_MODIFY:
1467                 /* If we didn't get required data, bail */
1468                 if ( !modlist ) goto done;
1469
1470                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1471
1472                 if ( rc != LDAP_SUCCESS ) {
1473                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1474                                 "mods check (%s)\n",
1475                                 si->si_ridtxt, text, 0 );
1476                         goto done;
1477                 }
1478
1479                 if ( op->o_tag == LDAP_REQ_ADD ) {
1480                         Entry *e = entry_alloc();
1481                         op->ora_e = e;
1482                         op->ora_e->e_name = op->o_req_dn;
1483                         op->ora_e->e_nname = op->o_req_ndn;
1484                         freeReqDn = 0;
1485                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1486                         if( rc != LDAP_SUCCESS ) {
1487                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1488                                 "mods2entry (%s)\n",
1489                                         si->si_ridtxt, text, 0 );
1490                         } else {
1491                                 rc = op->o_bd->be_add( op, &rs );
1492                                 Debug( LDAP_DEBUG_SYNC,
1493                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1494                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1495                         }
1496                         if ( e == op->ora_e )
1497                                 be_entry_release_w( op, op->ora_e );
1498                 } else {
1499                         op->orm_modlist = modlist;
1500                         op->o_bd = si->si_wbe;
1501                         rc = op->o_bd->be_modify( op, &rs );
1502                         modlist = op->orm_modlist;
1503                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1504                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1505                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1506                         op->o_bd = si->si_be;
1507                 }
1508                 break;
1509         case LDAP_REQ_MODRDN:
1510                 if ( BER_BVISNULL( &rdn ) ) goto done;
1511
1512                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1513                         goto done;
1514                 }
1515                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1516                         goto done;
1517                 }
1518                 if ( !BER_BVISNULL( &sup ) ) {
1519                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1520                                 goto done;
1521                         }
1522                         op->orr_newSup = &psup;
1523                         op->orr_nnewSup = &nsup;
1524                 } else {
1525                         op->orr_newSup = NULL;
1526                         op->orr_nnewSup = NULL;
1527                 }
1528                 op->orr_newrdn = prdn;
1529                 op->orr_nnewrdn = nrdn;
1530                 op->orr_deleteoldrdn = deleteOldRdn;
1531                 op->orr_modlist = NULL;
1532                 if ( slap_modrdn2mods( op, &rs ) ) {
1533                         goto done;
1534                 }
1535
1536                 /* Append modlist for operational attrs */
1537                 {
1538                         Modifications *m;
1539
1540                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1541                                 ;
1542                         m->sml_next = modlist;
1543                         modlist = NULL;
1544                 }
1545                 rc = op->o_bd->be_modrdn( op, &rs );
1546                 slap_mods_free( op->orr_modlist, 1 );
1547                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1548                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1549                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1550                 break;
1551         case LDAP_REQ_DELETE:
1552                 rc = op->o_bd->be_delete( op, &rs );
1553                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1554                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1555                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1556                 break;
1557         }
1558 done:
1559         slap_graduate_commit_csn( op );
1560         op->o_bd = si->si_be;
1561         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1562         BER_BVZERO( &op->o_csn );
1563         if ( modlist ) {
1564                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1565         }
1566         if ( !BER_BVISNULL( &rdn ) ) {
1567                 if ( !BER_BVISNULL( &nsup ) ) {
1568                         ch_free( nsup.bv_val );
1569                 }
1570                 if ( !BER_BVISNULL( &psup ) ) {
1571                         ch_free( psup.bv_val );
1572                 }
1573                 if ( !BER_BVISNULL( &nrdn ) ) {
1574                         ch_free( nrdn.bv_val );
1575                 }
1576                 if ( !BER_BVISNULL( &prdn ) ) {
1577                         ch_free( prdn.bv_val );
1578                 }
1579         }
1580         if ( freeReqDn ) {
1581                 ch_free( op->o_req_ndn.bv_val );
1582                 ch_free( op->o_req_dn.bv_val );
1583         }
1584         ber_free( ber, 0 );
1585         return rc;
1586 }
1587
1588 static int
1589 syncrepl_message_to_entry(
1590         syncinfo_t      *si,
1591         Operation       *op,
1592         LDAPMessage     *msg,
1593         Modifications   **modlist,
1594         Entry                   **entry,
1595         int             syncstate
1596 )
1597 {
1598         Entry           *e = NULL;
1599         BerElement      *ber = NULL;
1600         Modifications   tmp;
1601         Modifications   *mod;
1602         Modifications   **modtail = modlist;
1603
1604         const char      *text;
1605         char txtbuf[SLAP_TEXT_BUFLEN];
1606         size_t textlen = sizeof txtbuf;
1607
1608         struct berval   bdn = BER_BVNULL, dn, ndn;
1609         int             rc, is_ctx;
1610
1611         *modlist = NULL;
1612
1613         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1614                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1615                         "Message type should be entry (%d)",
1616                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1617                 return -1;
1618         }
1619
1620         op->o_tag = LDAP_REQ_ADD;
1621
1622         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1623         if ( rc != LDAP_SUCCESS ) {
1624                 Debug( LDAP_DEBUG_ANY,
1625                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1626                         si->si_ridtxt, rc, 0 );
1627                 return rc;
1628         }
1629
1630         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1631                 /* NOTE: this could be done even before decoding the DN,
1632                  * although encoding errors wouldn't be detected */
1633                 rc = LDAP_SUCCESS;
1634                 goto done;
1635         }
1636
1637         if ( entry == NULL ) {
1638                 return -1;
1639         }
1640
1641         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1642         ber_dupbv( &op->o_req_dn, &dn );
1643         ber_dupbv( &op->o_req_ndn, &ndn );
1644         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1645         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1646
1647         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1648
1649         e = entry_alloc();
1650         e->e_name = op->o_req_dn;
1651         e->e_nname = op->o_req_ndn;
1652
1653         while ( ber_remaining( ber ) ) {
1654                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1655                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1656                 {
1657                         break;
1658                 }
1659
1660                 /* Drop all updates to the contextCSN of the context entry
1661                  * (ITS#4622, etc.)
1662                  */
1663                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1664                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1665                         ber_bvarray_free( tmp.sml_values );
1666                         continue;
1667                 }
1668
1669                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1670
1671                 mod->sml_op = LDAP_MOD_REPLACE;
1672                 mod->sml_flags = 0;
1673                 mod->sml_next = NULL;
1674                 mod->sml_desc = NULL;
1675                 mod->sml_type = tmp.sml_type;
1676                 mod->sml_values = tmp.sml_values;
1677                 mod->sml_nvalues = NULL;
1678
1679                 *modtail = mod;
1680                 modtail = &mod->sml_next;
1681         }
1682
1683         if ( *modlist == NULL ) {
1684                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1685                         si->si_ridtxt, 0, 0 );
1686                 rc = -1;
1687                 goto done;
1688         }
1689
1690         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1691
1692         if ( rc != LDAP_SUCCESS ) {
1693                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1694                         si->si_ridtxt, text, 0 );
1695                 goto done;
1696         }
1697
1698         /* Strip out dynamically generated attrs */
1699         for ( modtail = modlist; *modtail ; ) {
1700                 mod = *modtail;
1701                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1702                         *modtail = mod->sml_next;
1703                         slap_mod_free( &mod->sml_mod, 0 );
1704                         ch_free( mod );
1705                 } else {
1706                         modtail = &mod->sml_next;
1707                 }
1708         }
1709
1710         /* Strip out attrs in exattrs list */
1711         for ( modtail = modlist; *modtail ; ) {
1712                 mod = *modtail;
1713                 if ( ldap_charray_inlist( si->si_exattrs,
1714                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1715                 {
1716                         *modtail = mod->sml_next;
1717                         slap_mod_free( &mod->sml_mod, 0 );
1718                         ch_free( mod );
1719                 } else {
1720                         modtail = &mod->sml_next;
1721                 }
1722         }
1723
1724         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1725         if( rc != LDAP_SUCCESS ) {
1726                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1727                         si->si_ridtxt, text, 0 );
1728         }
1729
1730 done:
1731         ber_free( ber, 0 );
1732         if ( rc != LDAP_SUCCESS ) {
1733                 if ( e ) {
1734                         entry_free( e );
1735                         e = NULL;
1736                 }
1737         }
1738         if ( entry )
1739                 *entry = e;
1740
1741         return rc;
1742 }
1743
1744 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1745
1746 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1747  * entry if a previous refresh was interrupted before sending us a new
1748  * context state. We try to compare the new entry to the existing entry
1749  * and ignore the new entry if they are the same.
1750  *
1751  * Also, we may get an update where the entryDN has changed, due to
1752  * a ModDn on the provider. We detect this as well, so we can issue
1753  * the corresponding operation locally.
1754  *
1755  * In the case of a modify, we get a list of all the attributes
1756  * in the original entry. Rather than deleting the entry and re-adding it,
1757  * we issue a Modify request that deletes all the attributes and adds all
1758  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1759  * entry.
1760  *
1761  * We otherwise distinguish ModDN from Modify; in the case of
1762  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1763  * operational attributes from the entry, and do a regular ModDN.
1764  */
1765 typedef struct dninfo {
1766         Entry *new_entry;
1767         struct berval dn;
1768         struct berval ndn;
1769         int renamed;    /* Was an existing entry renamed? */
1770         int delOldRDN;  /* Was old RDN deleted? */
1771         Modifications **modlist;        /* the modlist we received */
1772         Modifications *mods;    /* the modlist we compared */
1773 } dninfo;
1774
1775 static int
1776 syncrepl_entry(
1777         syncinfo_t* si,
1778         Operation *op,
1779         Entry* entry,
1780         Modifications** modlist,
1781         int syncstate,
1782         struct berval* syncUUID )
1783 {
1784         Backend *be = op->o_bd;
1785         slap_callback   cb = { NULL, NULL, NULL, NULL };
1786         struct berval   *syncuuid_bv = NULL;
1787         struct berval   syncUUID_strrep = BER_BVNULL;
1788         struct berval   uuid_bv = BER_BVNULL;
1789
1790         SlapReply       rs_search = {REP_RESULT};
1791         SlapReply       rs_delete = {REP_RESULT};
1792         SlapReply       rs_add = {REP_RESULT};
1793         SlapReply       rs_modify = {REP_RESULT};
1794         Filter f = {0};
1795 #ifdef LDAP_COMP_MATCH
1796         AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
1797 #else
1798         AttributeAssertion ava = { NULL, BER_BVNULL };
1799 #endif
1800         int rc = LDAP_SUCCESS;
1801
1802         struct berval pdn = BER_BVNULL;
1803         dninfo dni = {0};
1804         int     retry = 1;
1805
1806         switch( syncstate ) {
1807         case LDAP_SYNC_PRESENT:
1808                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1809                                         si->si_ridtxt,
1810                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
1811                 break;
1812         case LDAP_SYNC_ADD:
1813                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1814                                         si->si_ridtxt,
1815                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
1816                 break;
1817         case LDAP_SYNC_DELETE:
1818                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1819                                         si->si_ridtxt,
1820                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
1821                 break;
1822         case LDAP_SYNC_MODIFY:
1823                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1824                                         si->si_ridtxt,
1825                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
1826                 break;
1827         default:
1828                 Debug( LDAP_DEBUG_ANY, "syncrepl_entry: %s %s\n",
1829                                         si->si_ridtxt,
1830                                         "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
1831         }
1832
1833         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1834                 if ( !si->si_refreshPresent ) {
1835                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1836                         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1837                                 syncuuid_cmp, avl_dup_error ) )
1838                         {
1839                                 ber_bvfree( syncuuid_bv );
1840                                 syncuuid_bv = NULL;
1841                         }
1842                 }
1843         }
1844
1845         if ( syncstate == LDAP_SYNC_PRESENT ) {
1846                 return 0;
1847         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1848                 if ( entry == NULL ) {
1849                         return 0;
1850                 }
1851         }
1852
1853         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1854         if ( syncstate != LDAP_SYNC_DELETE ) {
1855                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1856
1857                 if ( a == NULL ) {
1858                         /* add if missing */
1859                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1860                                 &syncUUID_strrep, syncUUID );
1861
1862                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1863                         /* replace only if necessary */
1864                         if ( a->a_nvals != a->a_vals ) {
1865                                 ber_memfree( a->a_nvals[0].bv_val );
1866                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1867                         }
1868                         ber_memfree( a->a_vals[0].bv_val );
1869                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1870                 }
1871         }
1872
1873         f.f_choice = LDAP_FILTER_EQUALITY;
1874         f.f_ava = &ava;
1875         ava.aa_desc = slap_schema.si_ad_entryUUID;
1876         ava.aa_value = *syncUUID;
1877
1878         if ( syncuuid_bv ) {
1879                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1880                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1881         }
1882         op->ors_filter = &f;
1883
1884         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1885         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1886                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1887         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1888         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1889                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1890         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1891         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1892
1893         op->o_tag = LDAP_REQ_SEARCH;
1894         op->ors_scope = LDAP_SCOPE_SUBTREE;
1895         op->ors_deref = LDAP_DEREF_NEVER;
1896
1897         /* get the entry for this UUID */
1898         op->o_req_dn = si->si_base;
1899         op->o_req_ndn = si->si_base;
1900
1901         op->o_time = slap_get_time();
1902         op->ors_tlimit = SLAP_NO_LIMIT;
1903         op->ors_slimit = 1;
1904
1905         op->ors_attrs = slap_anlist_all_attributes;
1906         op->ors_attrsonly = 0;
1907
1908         /* set callback function */
1909         op->o_callback = &cb;
1910         cb.sc_response = dn_callback;
1911         cb.sc_private = &dni;
1912         dni.new_entry = entry;
1913         dni.modlist = modlist;
1914
1915         if ( limits_check( op, &rs_search ) == 0 ) {
1916                 rc = be->be_search( op, &rs_search );
1917                 Debug( LDAP_DEBUG_SYNC,
1918                                 "syncrepl_entry: %s be_search (%d)\n",
1919                                 si->si_ridtxt, rc, 0 );
1920         }
1921
1922         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1923                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1924         }
1925
1926         cb.sc_response = null_callback;
1927         cb.sc_private = si;
1928
1929         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1930                 Debug( LDAP_DEBUG_SYNC,
1931                                 "syncrepl_entry: %s %s\n",
1932                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
1933         } else {
1934                 Debug( LDAP_DEBUG_SYNC,
1935                                 "syncrepl_entry: %s %s\n",
1936                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
1937         }
1938
1939         slap_op_time( &op->o_time, &op->o_tincr );
1940         switch ( syncstate ) {
1941         case LDAP_SYNC_ADD:
1942         case LDAP_SYNC_MODIFY:
1943                 {
1944                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
1945                         if ( a ) {
1946                                 /* FIXME: op->o_csn is assumed to be
1947                                  * on the thread's slab; this needs
1948                                  * to be cleared ASAP.
1949                                  * What happens if already present?
1950                                  */
1951                                 assert( BER_BVISNULL( &op->o_csn ) );
1952                                 op->o_csn = a->a_vals[0];
1953                         }
1954                 }
1955 retry_add:;
1956                 if ( BER_BVISNULL( &dni.dn ) ) {
1957
1958                         op->o_req_dn = entry->e_name;
1959                         op->o_req_ndn = entry->e_nname;
1960                         op->o_tag = LDAP_REQ_ADD;
1961                         op->ora_e = entry;
1962                         op->o_bd = si->si_wbe;
1963
1964                         rc = op->o_bd->be_add( op, &rs_add );
1965                         Debug( LDAP_DEBUG_SYNC,
1966                                         "syncrepl_entry: %s be_add (%d)\n",
1967                                         si->si_ridtxt, rc, 0 );
1968                         switch ( rs_add.sr_err ) {
1969                         case LDAP_SUCCESS:
1970                                 if ( op->ora_e == entry ) {
1971                                         be_entry_release_w( op, entry );
1972                                 }
1973                                 entry = NULL;
1974                                 break;
1975
1976                         case LDAP_REFERRAL:
1977                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
1978                          * only if the suffix entry is not present */
1979                         case LDAP_NO_SUCH_OBJECT:
1980                                 rc = syncrepl_add_glue( op, entry );
1981                                 entry = NULL;
1982                                 break;
1983
1984                         /* if an entry was added via syncrepl_add_glue(),
1985                          * it likely has no entryUUID, so the previous
1986                          * be_search() doesn't find it.  In this case,
1987                          * give syncrepl a chance to modify it. Also
1988                          * allow for entries that were recreated with the
1989                          * same DN but a different entryUUID.
1990                          */
1991                         case LDAP_ALREADY_EXISTS:
1992                                 if ( retry ) {
1993                                         Operation       op2 = *op;
1994                                         SlapReply       rs2 = { 0 };
1995                                         slap_callback   cb2 = { 0 };
1996
1997                                         op2.o_bd = be;
1998                                         op2.o_tag = LDAP_REQ_SEARCH;
1999                                         op2.o_req_dn = entry->e_name;
2000                                         op2.o_req_ndn = entry->e_nname;
2001                                         op2.ors_scope = LDAP_SCOPE_BASE;
2002                                         op2.ors_deref = LDAP_DEREF_NEVER;
2003                                         op2.ors_attrs = slap_anlist_all_attributes;
2004                                         op2.ors_attrsonly = 0;
2005                                         op2.ors_limit = NULL;
2006                                         op2.ors_slimit = 1;
2007                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2008
2009                                         f.f_choice = LDAP_FILTER_PRESENT;
2010                                         f.f_desc = slap_schema.si_ad_objectClass;
2011                                         op2.ors_filter = &f;
2012                                         op2.ors_filterstr = generic_filterstr;
2013
2014                                         op2.o_callback = &cb2;
2015                                         cb2.sc_response = dn_callback;
2016                                         cb2.sc_private = &dni;
2017
2018                                         rc = be->be_search( &op2, &rs2 );
2019                                         if ( rc ) goto done;
2020
2021                                         retry = 0;
2022                                         slap_op_time( &op->o_time, &op->o_tincr );
2023                                         goto retry_add;
2024                                 }
2025                                 /* FALLTHRU */
2026
2027                         default:
2028                                 Debug( LDAP_DEBUG_ANY,
2029                                         "syncrepl_entry: %s be_add failed (%d)\n",
2030                                         si->si_ridtxt, rs_add.sr_err, 0 );
2031                                 break;
2032                         }
2033                         op->o_bd = be;
2034                         goto done;
2035                 }
2036                 /* FALLTHRU */
2037                 op->o_req_dn = dni.dn;
2038                 op->o_req_ndn = dni.ndn;
2039                 if ( dni.renamed ) {
2040                         struct berval noldp, newp, nnewp;
2041
2042                         op->o_tag = LDAP_REQ_MODRDN;
2043                         dnRdn( &entry->e_name, &op->orr_newrdn );
2044                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2045
2046                         dnParent( &dni.ndn, &noldp );
2047                         dnParent( &entry->e_nname, &nnewp );
2048                         if ( !dn_match( &noldp, &nnewp ) ) {
2049                                 dnParent( &entry->e_name, &newp );
2050                                 op->orr_newSup = &newp;
2051                                 op->orr_nnewSup = &nnewp;
2052                         } else {
2053                                 op->orr_newSup = NULL;
2054                                 op->orr_nnewSup = NULL;
2055                         }
2056                         op->orr_deleteoldrdn = dni.delOldRDN;
2057                         op->orr_modlist = NULL;
2058                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2059                                 goto done;
2060                         }
2061
2062                         /* RDNs must be NUL-terminated for back-ldap */
2063                         noldp = op->orr_newrdn;
2064                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2065                         noldp = op->orr_nnewrdn;
2066                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2067
2068                         /* Setup opattrs too */
2069                         {
2070                                 AttributeDescription *opattrs[] = {
2071                                         slap_schema.si_ad_entryCSN,
2072                                         slap_schema.si_ad_modifiersName,
2073                                         slap_schema.si_ad_modifyTimestamp,
2074                                         NULL
2075                                 };
2076                                 Modifications *mod, **modtail, **ml;
2077                                 int i;
2078
2079                                 for ( mod = op->orr_modlist;
2080                                         mod->sml_next;
2081                                         mod = mod->sml_next )
2082                                         ;
2083                                 modtail = &mod->sml_next;
2084
2085                                 /* pull mod off incoming modlist, append to orr_modlist */
2086                                 for ( i = 0; opattrs[i]; i++ ) {
2087                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2088                                         {
2089                                                 if ( (*ml)->sml_desc == opattrs[i] ) {
2090                                                         mod = *ml;
2091                                                         *ml = mod->sml_next;
2092                                                         mod->sml_next = NULL;
2093                                                         *modtail = mod;
2094                                                         modtail = &mod->sml_next;
2095                                                         break;
2096                                                 }
2097                                         }
2098                                 }
2099                         }
2100                         op->o_bd = si->si_wbe;
2101                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2102                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2103                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2104
2105                         slap_mods_free( op->orr_modlist, 1 );
2106                         Debug( LDAP_DEBUG_SYNC,
2107                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2108                                         si->si_ridtxt, rc, 0 );
2109                         op->o_bd = be;
2110                         goto done;
2111                 }
2112                 if ( dni.mods ) {
2113                         op->o_tag = LDAP_REQ_MODIFY;
2114                         op->orm_modlist = dni.mods;
2115                         op->orm_no_opattrs = 1;
2116                         op->o_bd = si->si_wbe;
2117
2118                         rc = op->o_bd->be_modify( op, &rs_modify );
2119                         slap_mods_free( op->orm_modlist, 1 );
2120                         Debug( LDAP_DEBUG_SYNC,
2121                                         "syncrepl_entry: %s be_modify (%d)\n",
2122                                         si->si_ridtxt, rc, 0 );
2123                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2124                                 Debug( LDAP_DEBUG_ANY,
2125                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2126                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2127                         }
2128                         op->o_bd = be;
2129                 } else {
2130                         Debug( LDAP_DEBUG_SYNC,
2131                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2132                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2133                 }
2134                 goto done;
2135         case LDAP_SYNC_DELETE :
2136                 if ( !BER_BVISNULL( &dni.dn ) ) {
2137                         op->o_req_dn = dni.dn;
2138                         op->o_req_ndn = dni.ndn;
2139                         op->o_tag = LDAP_REQ_DELETE;
2140                         op->o_bd = si->si_wbe;
2141                         rc = op->o_bd->be_delete( op, &rs_delete );
2142                         Debug( LDAP_DEBUG_SYNC,
2143                                         "syncrepl_entry: %s be_delete (%d)\n",
2144                                         si->si_ridtxt, rc, 0 );
2145
2146                         while ( rs_delete.sr_err == LDAP_SUCCESS
2147                                 && op->o_delete_glue_parent ) {
2148                                 op->o_delete_glue_parent = 0;
2149                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2150                                         slap_callback cb = { NULL };
2151                                         cb.sc_response = slap_null_cb;
2152                                         dnParent( &op->o_req_ndn, &pdn );
2153                                         op->o_req_dn = pdn;
2154                                         op->o_req_ndn = pdn;
2155                                         op->o_callback = &cb;
2156                                         op->o_bd->be_delete( op, &rs_delete );
2157                                 } else {
2158                                         break;
2159                                 }
2160                         }
2161                         op->o_bd = be;
2162                 }
2163                 goto done;
2164
2165         default :
2166                 Debug( LDAP_DEBUG_ANY,
2167                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2168                 goto done;
2169         }
2170
2171 done:
2172         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2173                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2174                 BER_BVZERO( &syncUUID_strrep );
2175         }
2176         if ( !BER_BVISNULL( &dni.ndn ) ) {
2177                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2178         }
2179         if ( !BER_BVISNULL( &dni.dn ) ) {
2180                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2181         }
2182         if ( entry )
2183                 entry_free( entry );
2184         BER_BVZERO( &op->o_csn );
2185         return rc;
2186 }
2187
2188 static struct berval gcbva[] = {
2189         BER_BVC("top"),
2190         BER_BVC("glue"),
2191         BER_BVNULL
2192 };
2193
2194 #define NP_DELETE_ONE   2
2195
2196 static void
2197 syncrepl_del_nonpresent(
2198         Operation *op,
2199         syncinfo_t *si,
2200         BerVarray uuids,
2201         struct berval *cookiecsn )
2202 {
2203         Backend* be = op->o_bd;
2204         slap_callback   cb = { NULL };
2205         SlapReply       rs_search = {REP_RESULT};
2206         SlapReply       rs_delete = {REP_RESULT};
2207         SlapReply       rs_modify = {REP_RESULT};
2208         struct nonpresent_entry *np_list, *np_prev;
2209         int rc;
2210         AttributeName   an[2];
2211
2212         struct berval pdn = BER_BVNULL;
2213         struct berval csn;
2214
2215         op->o_req_dn = si->si_base;
2216         op->o_req_ndn = si->si_base;
2217
2218         cb.sc_response = nonpresent_callback;
2219         cb.sc_private = si;
2220
2221         op->o_callback = &cb;
2222         op->o_tag = LDAP_REQ_SEARCH;
2223         op->ors_scope = si->si_scope;
2224         op->ors_deref = LDAP_DEREF_NEVER;
2225         op->o_time = slap_get_time();
2226         op->ors_tlimit = SLAP_NO_LIMIT;
2227
2228
2229         if ( uuids ) {
2230                 Filter uf;
2231 #ifdef LDAP_COMP_MATCH
2232                 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
2233 #else
2234                 AttributeAssertion eq = { NULL, BER_BVNULL };
2235 #endif
2236                 int i;
2237
2238                 op->ors_attrsonly = 1;
2239                 op->ors_attrs = slap_anlist_no_attrs;
2240                 op->ors_limit = NULL;
2241                 op->ors_filter = &uf;
2242
2243                 uf.f_ava = &eq;
2244                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2245                 uf.f_next = NULL;
2246                 uf.f_choice = LDAP_FILTER_EQUALITY;
2247                 si->si_refreshDelete |= NP_DELETE_ONE;
2248
2249                 for (i=0; uuids[i].bv_val; i++) {
2250                         op->ors_slimit = 1;
2251                         slap_uuidstr_from_normalized( &uf.f_av_value, &uuids[i],
2252                                 op->o_tmpmemctx );
2253                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2254                         op->o_tmpfree( uf.f_av_value.bv_val, op->o_tmpmemctx );
2255                         uf.f_av_value = uuids[i];
2256                         rc = be->be_search( op, &rs_search );
2257                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2258                 }
2259                 si->si_refreshDelete ^= NP_DELETE_ONE;
2260         } else {
2261                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2262                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2263                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2264                 op->ors_attrs = an;
2265                 op->ors_slimit = SLAP_NO_LIMIT;
2266                 op->ors_attrsonly = 0;
2267                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2268                 op->ors_filterstr = si->si_filterstr;
2269                 op->o_nocaching = 1;
2270
2271                 if ( limits_check( op, &rs_search ) == 0 ) {
2272                         rc = be->be_search( op, &rs_search );
2273                 }
2274                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2275         }
2276
2277         op->o_nocaching = 0;
2278
2279         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2280
2281                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2282                         csn = *cookiecsn;
2283                 } else {
2284                         csn = si->si_syncCookie.ctxcsn[0];
2285                 }
2286
2287                 op->o_bd = si->si_wbe;
2288                 slap_queue_csn( op, &csn );
2289
2290                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2291                 while ( np_list != NULL ) {
2292                         LDAP_LIST_REMOVE( np_list, npe_link );
2293                         np_prev = np_list;
2294                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2295                         op->o_tag = LDAP_REQ_DELETE;
2296                         op->o_callback = &cb;
2297                         cb.sc_response = null_callback;
2298                         cb.sc_private = si;
2299                         op->o_req_dn = *np_prev->npe_name;
2300                         op->o_req_ndn = *np_prev->npe_nname;
2301                         rc = op->o_bd->be_delete( op, &rs_delete );
2302                         Debug( LDAP_DEBUG_SYNC,
2303                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2304                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2305
2306                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2307                                 Modifications mod1, mod2;
2308                                 mod1.sml_op = LDAP_MOD_REPLACE;
2309                                 mod1.sml_flags = 0;
2310                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2311                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2312                                 mod1.sml_values = &gcbva[0];
2313                                 mod1.sml_nvalues = NULL;
2314                                 mod1.sml_next = &mod2;
2315
2316                                 mod2.sml_op = LDAP_MOD_REPLACE;
2317                                 mod2.sml_flags = 0;
2318                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2319                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2320                                 mod2.sml_values = &gcbva[1];
2321                                 mod2.sml_nvalues = NULL;
2322                                 mod2.sml_next = NULL;
2323
2324                                 op->o_tag = LDAP_REQ_MODIFY;
2325                                 op->orm_modlist = &mod1;
2326
2327                                 rc = op->o_bd->be_modify( op, &rs_modify );
2328                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2329                         }
2330
2331                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2332                                         op->o_delete_glue_parent ) {
2333                                 op->o_delete_glue_parent = 0;
2334                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2335                                         slap_callback cb = { NULL };
2336                                         cb.sc_response = slap_null_cb;
2337                                         dnParent( &op->o_req_ndn, &pdn );
2338                                         op->o_req_dn = pdn;
2339                                         op->o_req_ndn = pdn;
2340                                         op->o_callback = &cb;
2341                                         /* give it a root privil ? */
2342                                         op->o_bd->be_delete( op, &rs_delete );
2343                                 } else {
2344                                         break;
2345                                 }
2346                         }
2347
2348                         op->o_delete_glue_parent = 0;
2349
2350                         ber_bvfree( np_prev->npe_name );
2351                         ber_bvfree( np_prev->npe_nname );
2352                         ch_free( np_prev );
2353                 }
2354
2355                 slap_graduate_commit_csn( op );
2356                 op->o_bd = be;
2357
2358                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2359                 BER_BVZERO( &op->o_csn );
2360         }
2361
2362         return;
2363 }
2364
2365 int
2366 syncrepl_add_glue(
2367         Operation* op,
2368         Entry *e )
2369 {
2370         Backend *be = op->o_bd;
2371         slap_callback cb = { NULL };
2372         Attribute       *a;
2373         int     rc;
2374         int suffrdns;
2375         int i;
2376         struct berval dn = BER_BVNULL;
2377         struct berval ndn = BER_BVNULL;
2378         Entry   *glue;
2379         SlapReply       rs_add = {REP_RESULT};
2380         struct berval   ptr, nptr;
2381         char            *comma;
2382
2383         op->o_tag = LDAP_REQ_ADD;
2384         op->o_callback = &cb;
2385         cb.sc_response = null_callback;
2386         cb.sc_private = NULL;
2387
2388         dn = e->e_name;
2389         ndn = e->e_nname;
2390
2391         /* count RDNs in suffix */
2392         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2393                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2394                         comma++;
2395                         ptr.bv_len -= comma - ptr.bv_val;
2396                         ptr.bv_val = comma;
2397                         i++;
2398                 }
2399                 suffrdns = i;
2400         } else {
2401                 /* suffix is "" */
2402                 suffrdns = 0;
2403         }
2404
2405         /* Start with BE suffix */
2406         ptr = dn;
2407         for ( i = 0; i < suffrdns; i++ ) {
2408                 comma = ber_bvrchr( &ptr, ',' );
2409                 if ( comma != NULL ) {
2410                         ptr.bv_len = comma - ptr.bv_val;
2411                 } else {
2412                         ptr.bv_len = 0;
2413                         break;
2414                 }
2415         }
2416
2417         if ( !BER_BVISEMPTY( &ptr ) ) {
2418                 dn.bv_len -= ptr.bv_len + 1;
2419                 dn.bv_val += ptr.bv_len + 1;
2420         }
2421
2422         /* the normalizedDNs are always the same length, no counting
2423          * required.
2424          */
2425         nptr = ndn;
2426         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2427                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2428                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2429
2430                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2431
2432         } else {
2433                 nptr.bv_len = 0;
2434         }
2435
2436         while ( ndn.bv_val > e->e_nname.bv_val ) {
2437                 glue = entry_alloc();
2438                 ber_dupbv( &glue->e_name, &dn );
2439                 ber_dupbv( &glue->e_nname, &ndn );
2440
2441                 a = attr_alloc( slap_schema.si_ad_objectClass );
2442
2443                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2444                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2445                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2446                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2447
2448                 a->a_nvals = a->a_vals;
2449
2450                 a->a_next = glue->e_attrs;
2451                 glue->e_attrs = a;
2452
2453                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2454
2455                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2456                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2457                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2458
2459                 a->a_nvals = a->a_vals;
2460
2461                 a->a_next = glue->e_attrs;
2462                 glue->e_attrs = a;
2463
2464                 op->o_req_dn = glue->e_name;
2465                 op->o_req_ndn = glue->e_nname;
2466                 op->ora_e = glue;
2467                 rc = be->be_add ( op, &rs_add );
2468                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2469                         if ( op->ora_e == glue )
2470                                 be_entry_release_w( op, glue );
2471                 } else {
2472                 /* incl. ALREADY EXIST */
2473                         entry_free( glue );
2474                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2475                                 entry_free( e );
2476                                 return rc;
2477                         }
2478                 }
2479
2480                 /* Move to next child */
2481                 comma = ber_bvrchr( &ptr, ',' );
2482                 if ( comma == NULL ) {
2483                         break;
2484                 }
2485                 ptr.bv_len = comma - ptr.bv_val;
2486
2487                 dn.bv_val = ++comma;
2488                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2489
2490                 comma = ber_bvrchr( &nptr, ',' );
2491                 assert( comma != NULL );
2492                 nptr.bv_len = comma - nptr.bv_val;
2493
2494                 ndn.bv_val = ++comma;
2495                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2496         }
2497
2498         op->o_req_dn = e->e_name;
2499         op->o_req_ndn = e->e_nname;
2500         op->ora_e = e;
2501         rc = be->be_add ( op, &rs_add );
2502         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2503                 if ( op->ora_e == e )
2504                         be_entry_release_w( op, e );
2505         } else {
2506                 entry_free( e );
2507         }
2508
2509         return rc;
2510 }
2511
2512 static int
2513 syncrepl_updateCookie(
2514         syncinfo_t *si,
2515         Operation *op,
2516         struct berval *pdn,
2517         struct sync_cookie *syncCookie )
2518 {
2519         Backend *be = op->o_bd;
2520         Modifications mod[2];
2521         struct berval first = BER_BVNULL;
2522
2523         int rc, i, j;
2524
2525         slap_callback cb = { NULL };
2526         SlapReply       rs_modify = {REP_RESULT};
2527
2528         mod[0].sml_op = LDAP_MOD_DELETE;
2529         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2530         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2531         mod[0].sml_values = NULL;
2532         mod[0].sml_nvalues = NULL;
2533         mod[0].sml_next = &mod[1];
2534
2535         mod[1].sml_op = LDAP_MOD_ADD;
2536         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2537         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2538         mod[1].sml_values = NULL;
2539         mod[1].sml_nvalues = NULL;
2540         mod[1].sml_next = NULL;
2541
2542         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2543
2544         for ( i=0; i<syncCookie->numcsns; i++ ) {
2545                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2546                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2547                                 continue;
2548                         if ( ber_bvcmp( &syncCookie->ctxcsn[i],
2549                                 &si->si_cookieState->cs_vals[j] ) > 0 ) {
2550                                 ber_bvarray_add_x( &mod[0].sml_values,
2551                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2552                                 ber_bvarray_add_x( &mod[1].sml_values,
2553                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2554                                 if ( BER_BVISNULL( &first ))
2555                                         first = syncCookie->ctxcsn[i];
2556                         }
2557                         break;
2558                 }
2559                 /* there was no match for this SID, it's a new CSN */
2560                 if ( j == si->si_cookieState->cs_num ) {
2561                         ber_bvarray_add_x( &mod[1].sml_values,
2562                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2563                         if ( BER_BVISNULL( &first ))
2564                                 first = syncCookie->ctxcsn[i];
2565                 }
2566         }
2567         op->o_bd = si->si_wbe;
2568         slap_queue_csn( op, &first );
2569
2570         op->o_tag = LDAP_REQ_MODIFY;
2571
2572         cb.sc_response = null_callback;
2573         cb.sc_private = si;
2574
2575         op->o_callback = &cb;
2576         op->o_req_dn = op->o_bd->be_suffix[0];
2577         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2578
2579         /* update contextCSN */
2580         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2581
2582         if ( mod[0].sml_values )
2583                 op->orm_modlist = mod;
2584         else
2585                 op->orm_modlist = &mod[1];
2586
2587         op->orm_no_opattrs = 1;
2588         rc = op->o_bd->be_modify( op, &rs_modify );
2589         op->o_msgid = 0;
2590
2591         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2592                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2593                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2594                 /* If we replaced any old values */
2595                 if ( mod[0].sml_values ) {
2596                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2597                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2598                                         if ( mod[0].sml_values[i].bv_val !=
2599                                                 si->si_cookieState->cs_vals[j].bv_val )
2600                                                 continue;
2601                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2602                                                 &mod[1].sml_values[i] );
2603                                         break;
2604                                 }
2605                         }
2606                 } else {
2607                         /* Else we just added */
2608                         si->si_cookieState->cs_num += syncCookie->numcsns;
2609                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2610                         free( si->si_cookieState->cs_sids );
2611                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2612                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2613                 }
2614
2615                 si->si_cookieState->cs_age++;
2616                 si->si_cookieAge = si->si_cookieState->cs_age;
2617         } else {
2618                 Debug( LDAP_DEBUG_ANY,
2619                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2620                         si->si_ridtxt, rs_modify.sr_err, 0 );
2621         }
2622         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2623
2624         slap_graduate_commit_csn( op );
2625         op->o_bd = be;
2626         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2627         BER_BVZERO( &op->o_csn );
2628         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2629         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2630         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2631
2632         return rc;
2633 }
2634
2635 static void
2636 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2637         Modifications ***mret, Modifications ***mcur )
2638 {
2639         int i, j;
2640         Modifications *mod, **modtail;
2641
2642         modtail = *mret;
2643
2644         if ( old ) {
2645                 int n, o, d, a, *adds, *dels;
2646                 /* count old and new */
2647                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2648                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2649
2650                 adds = op->o_tmpalloc( sizeof(int) * n, op->o_tmpmemctx );
2651                 dels = op->o_tmpalloc( sizeof(int) * o, op->o_tmpmemctx );
2652                 d = 0;
2653                 a = 0;
2654                 i = 0;
2655                 j = 0;
2656
2657                 while ( i < o && j < n ) {
2658                         int k;
2659                         if ( bvmatch( &old->a_vals[i], &new->a_vals[j] ) ) {
2660                                 i++;
2661                                 j++;
2662                                 continue;
2663                         }
2664                         for ( k = j + 1; k<n; k++ ) {
2665                                 if ( bvmatch( &old->a_vals[i], &new->a_vals[k] ) ) {
2666                                         break;
2667                                 }
2668                         }
2669                         /* an old value was deleted */
2670                         if ( k == n ) {
2671                                 dels[d++] = i++;
2672                                 continue;
2673                         }
2674                         for ( k = i + 1; k < o; k++ ) {
2675                                 if ( bvmatch( &old->a_vals[k], &new->a_vals[j] ) ) {
2676                                         break;
2677                                 }
2678                         }
2679                         if ( k == o ) {
2680                                 adds[a++] = j++;
2681                         }
2682                 }
2683                 while ( i < o )
2684                         dels[d++] = i++;
2685                 while ( j < n )
2686                         adds[a++] = j++;
2687
2688                 /* all old values were deleted, just use the replace op */
2689                 if ( d == o ) {
2690                         i = j-1;
2691                 } else if ( d ) {
2692                 /* delete some values */
2693                         mod = ch_malloc( sizeof( Modifications ) );
2694                         mod->sml_op = LDAP_MOD_DELETE;
2695                         mod->sml_flags = 0;
2696                         mod->sml_desc = old->a_desc;
2697                         mod->sml_type = mod->sml_desc->ad_cname;
2698                         mod->sml_values = ch_malloc( ( d + 1 ) * sizeof(struct berval) );
2699                         if ( old->a_vals != old->a_nvals ) {
2700                                 mod->sml_nvalues = ch_malloc( ( d + 1 ) * sizeof(struct berval) );
2701                         } else {
2702                                 mod->sml_nvalues = NULL;
2703                         }
2704                         for ( i = 0; i < d; i++ ) {
2705                                 ber_dupbv( &mod->sml_values[i], &old->a_vals[dels[i]] );
2706                                 if ( mod->sml_nvalues ) {
2707                                         ber_dupbv( &mod->sml_nvalues[i], &old->a_nvals[dels[i]] );
2708                                 }
2709                         }
2710                         BER_BVZERO( &mod->sml_values[i] );
2711                         if ( mod->sml_nvalues ) {
2712                                 BER_BVZERO( &mod->sml_nvalues[i] );
2713                         }
2714                         *modtail = mod;
2715                         modtail = &mod->sml_next;
2716                         i = j;
2717                 }
2718                 op->o_tmpfree( dels, op->o_tmpmemctx );
2719                 /* some values were added */
2720                 if ( a && d < o ) {
2721                         mod = ch_malloc( sizeof( Modifications ) );
2722                         mod->sml_op = LDAP_MOD_ADD;
2723                         mod->sml_flags = 0;
2724                         mod->sml_desc = old->a_desc;
2725                         mod->sml_type = mod->sml_desc->ad_cname;
2726                         mod->sml_values = ch_malloc( ( a + 1 ) * sizeof(struct berval) );
2727                         if ( old->a_vals != old->a_nvals ) {
2728                                 mod->sml_nvalues = ch_malloc( ( a + 1 ) * sizeof(struct berval) );
2729                         } else {
2730                                 mod->sml_nvalues = NULL;
2731                         }
2732                         for ( i = 0; i < a; i++ ) {
2733                                 ber_dupbv( &mod->sml_values[i], &new->a_vals[adds[i]] );
2734                                 if ( mod->sml_nvalues ) {
2735                                         ber_dupbv( &mod->sml_nvalues[i], &new->a_nvals[adds[i]] );
2736                                 }
2737                         }
2738                         BER_BVZERO( &mod->sml_values[i] );
2739                         if ( mod->sml_nvalues ) {
2740                                 BER_BVZERO( &mod->sml_nvalues[i] );
2741                         }
2742                         *modtail = mod;
2743                         modtail = &mod->sml_next;
2744                         i = j;
2745                 }
2746                 op->o_tmpfree( adds, op->o_tmpmemctx );
2747         } else {
2748                 /* new attr, just use the new mod */
2749                 i = 0;
2750                 j = 1;
2751         }
2752         /* advance to next element */
2753         mod = **mcur;
2754         if ( mod ) {
2755                 if ( i != j ) {
2756                         **mcur = mod->sml_next;
2757                         *modtail = mod;
2758                         modtail = &mod->sml_next;
2759                 } else {
2760                         *mcur = &mod->sml_next;
2761                 }
2762         }
2763         *mret = modtail;
2764 }
2765
2766 static int
2767 dn_callback(
2768         Operation*      op,
2769         SlapReply*      rs )
2770 {
2771         dninfo *dni = op->o_callback->sc_private;
2772
2773         if ( rs->sr_type == REP_SEARCH ) {
2774                 if ( !BER_BVISNULL( &dni->dn ) ) {
2775                         Debug( LDAP_DEBUG_ANY,
2776                                 "dn_callback : consistency error - "
2777                                 "entryUUID is not unique\n", 0, 0, 0 );
2778                 } else {
2779                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2780                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2781                         /* If there is a new entry, see if it differs from the old.
2782                          * We compare the non-normalized values so that cosmetic changes
2783                          * in the provider are always propagated.
2784                          */
2785                         if ( dni->new_entry ) {
2786                                 Modifications **modtail, **ml;
2787                                 Attribute *old, *new;
2788                                 int i, is_ctx;
2789
2790                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2791                                         &op->o_bd->be_nsuffix[0] );
2792
2793                                 /* Did the DN change?
2794                                  */
2795                                 if ( !dn_match( &rs->sr_entry->e_name,
2796                                                 &dni->new_entry->e_name ) )
2797                                 {
2798                                         struct berval oldRDN, oldVal;
2799                                         AttributeDescription *ad = NULL;
2800                                         Attribute *a;
2801
2802                                         dni->renamed = 1;
2803                                         /* See if the oldRDN was deleted */
2804                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2805                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2806                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2807                                                 oldRDN.bv_val );
2808                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2809                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2810                                         a = attr_find( dni->new_entry->e_attrs, ad );
2811                                         if ( !a || value_find_ex( ad,
2812                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2813                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2814                                                 SLAP_MR_VALUE_OF_SYNTAX, a->a_nvals,
2815                                                 &oldVal, op->o_tmpmemctx ) != LDAP_SUCCESS )
2816                                         {
2817                                                 dni->delOldRDN = 1;
2818                                         }
2819                                         /* OK, this was just a modDN, we're done */
2820                                         return LDAP_SUCCESS;
2821                                 }
2822
2823                                 modtail = &dni->mods;
2824                                 ml = dni->modlist;
2825
2826                                 /* Make sure new entry is actually newer than old entry */
2827                                 old = attr_find( rs->sr_entry->e_attrs,
2828                                         slap_schema.si_ad_entryCSN );
2829                                 new = attr_find( dni->new_entry->e_attrs,
2830                                         slap_schema.si_ad_entryCSN );
2831                                 if ( new && old && ber_bvcmp( &old->a_vals[0],
2832                                         &new->a_vals[0] ) >= 0 ) {
2833                                         Debug( LDAP_DEBUG_SYNC,
2834                                                 "dn_callback : new entry is older than ours "
2835                                                 "%s ours %s, new %s\n",
2836                                                 rs->sr_entry->e_name.bv_val,
2837                                                 old->a_vals[0].bv_val,
2838                                                 new->a_vals[0].bv_val );
2839                                         return LDAP_SUCCESS;
2840                                 }
2841
2842                                 /* We assume that attributes are saved in the same order
2843                                  * in the remote and local databases. So if we walk through
2844                                  * the attributeDescriptions one by one they should match in
2845                                  * lock step. If not, look for an add or delete.
2846                                  */
2847                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2848                                                 old && new; )
2849                                 {
2850                                         /* If we've seen this before, use its mod now */
2851                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2852                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2853                                                 new = new->a_next;
2854                                                 continue;
2855                                         }
2856                                         /* Skip contextCSN */
2857                                         if ( is_ctx && old->a_desc ==
2858                                                 slap_schema.si_ad_contextCSN ) {
2859                                                 old = old->a_next;
2860                                                 continue;
2861                                         }
2862
2863                                         if ( old->a_desc != new->a_desc ) {
2864                                                 Modifications *mod;
2865                                                 Attribute *tmp;
2866
2867                                                 /* If it's just been re-added later,
2868                                                  * remember that we've seen it.
2869                                                  */
2870                                                 tmp = attr_find( new, old->a_desc );
2871                                                 if ( tmp ) {
2872                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2873                                                 } else {
2874                                                         /* If it's a new attribute, pull it in.
2875                                                          */
2876                                                         tmp = attr_find( old, new->a_desc );
2877                                                         if ( !tmp ) {
2878                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2879                                                                 new = new->a_next;
2880                                                                 continue;
2881                                                         }
2882                                                         /* Delete old attr */
2883                                                         mod = ch_malloc( sizeof( Modifications ) );
2884                                                         mod->sml_op = LDAP_MOD_DELETE;
2885                                                         mod->sml_flags = 0;
2886                                                         mod->sml_desc = old->a_desc;
2887                                                         mod->sml_type = mod->sml_desc->ad_cname;
2888                                                         mod->sml_values = NULL;
2889                                                         mod->sml_nvalues = NULL;
2890                                                         *modtail = mod;
2891                                                         modtail = &mod->sml_next;
2892                                                 }
2893                                                 old = old->a_next;
2894                                                 continue;
2895                                         }
2896                                         /* kludge - always update modifiersName so that it
2897                                          * stays co-located with the other mod opattrs. But only
2898                                          * if we know there are other valid mods.
2899                                          */
2900                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
2901                                                 dni->mods )
2902                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2903                                         else
2904                                                 attr_cmp( op, old, new, &modtail, &ml );
2905                                         new = new->a_next;
2906                                         old = old->a_next;
2907                                 }
2908                                 *modtail = *ml;
2909                                 *ml = NULL;
2910                         }
2911                 }
2912         } else if ( rs->sr_type == REP_RESULT ) {
2913                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
2914                         Debug( LDAP_DEBUG_ANY,
2915                                 "dn_callback : consistency error - "
2916                                 "entryUUID is not unique\n", 0, 0, 0 );
2917                 }
2918         }
2919
2920         return LDAP_SUCCESS;
2921 }
2922
2923 static int
2924 nonpresent_callback(
2925         Operation*      op,
2926         SlapReply*      rs )
2927 {
2928         syncinfo_t *si = op->o_callback->sc_private;
2929         Attribute *a;
2930         int count = 0;
2931         struct berval* present_uuid = NULL;
2932         struct nonpresent_entry *np_entry;
2933
2934         if ( rs->sr_type == REP_RESULT ) {
2935                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2936                 si->si_presentlist = NULL;
2937
2938         } else if ( rs->sr_type == REP_SEARCH ) {
2939                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
2940                         char buf[sizeof("rid=000 not")];
2941
2942                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2943
2944                         if ( a ) {
2945                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2946                                         syncuuid_cmp );
2947                         }
2948
2949                         if ( slap_debug & LDAP_DEBUG_SYNC ) {
2950                                 sprintf( buf, "%s %s", si->si_ridtxt,
2951                                         present_uuid ? "got" : "not" );
2952                         }
2953
2954                         Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
2955                                 buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
2956
2957                         if ( a == NULL ) return 0;
2958                 }
2959
2960                 if ( present_uuid == NULL ) {
2961                         np_entry = (struct nonpresent_entry *)
2962                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
2963                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
2964                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
2965                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
2966
2967                 } else {
2968                         avl_delete( &si->si_presentlist,
2969                                         &a->a_nvals[0], syncuuid_cmp );
2970                         ch_free( present_uuid->bv_val );
2971                         ch_free( present_uuid );
2972                 }
2973         }
2974         return LDAP_SUCCESS;
2975 }
2976
2977 static int
2978 null_callback(
2979         Operation*      op,
2980         SlapReply*      rs )
2981 {
2982         if ( rs->sr_err != LDAP_SUCCESS &&
2983                 rs->sr_err != LDAP_REFERRAL &&
2984                 rs->sr_err != LDAP_ALREADY_EXISTS &&
2985                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
2986                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
2987         {
2988                 Debug( LDAP_DEBUG_ANY,
2989                         "null_callback : error code 0x%x\n",
2990                         rs->sr_err, 0, 0 );
2991         }
2992         return LDAP_SUCCESS;
2993 }
2994
2995 static struct berval *
2996 slap_uuidstr_from_normalized(
2997         struct berval* uuidstr,
2998         struct berval* normalized,
2999         void *ctx )
3000 {
3001         struct berval *new;
3002         unsigned char nibble;
3003         int i, d = 0;
3004
3005         if ( normalized == NULL ) return NULL;
3006         if ( normalized->bv_len != 16 ) return NULL;
3007
3008         if ( uuidstr ) {
3009                 new = uuidstr;
3010         } else {
3011                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3012                 if ( new == NULL ) {
3013                         return NULL;
3014                 }
3015         }
3016
3017         new->bv_len = 36;
3018
3019         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3020                 if ( new != uuidstr ) {
3021                         slap_sl_free( new, ctx );
3022                 }
3023                 return NULL;
3024         }
3025
3026         for ( i = 0; i < 16; i++ ) {
3027                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3028                         new->bv_val[(i<<1)+d] = '-';
3029                         d += 1;
3030                 }
3031
3032                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3033                 if ( nibble < 10 ) {
3034                         new->bv_val[(i<<1)+d] = nibble + '0';
3035                 } else {
3036                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3037                 }
3038
3039                 nibble = (normalized->bv_val[i]) & 0xF;
3040                 if ( nibble < 10 ) {
3041                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3042                 } else {
3043                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3044                 }
3045         }
3046
3047         new->bv_val[new->bv_len] = '\0';
3048         return new;
3049 }
3050
3051 static int
3052 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3053 {
3054         const struct berval *uuid1 = v_uuid1;
3055         const struct berval *uuid2 = v_uuid2;
3056         int rc = uuid1->bv_len - uuid2->bv_len;
3057         if ( rc ) return rc;
3058         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3059 }
3060
3061 static void
3062 avl_ber_bvfree( void *v_bv )
3063 {
3064         struct berval   *bv = (struct berval *)v_bv;
3065
3066         if( v_bv == NULL ) return;
3067         if ( !BER_BVISNULL( bv ) ) {
3068                 ch_free( bv->bv_val );
3069         }
3070         ch_free( (char *) bv );
3071 }
3072
3073 void
3074 syncinfo_free( syncinfo_t *sie, int free_all )
3075 {
3076         syncinfo_t *si_next;
3077
3078         if ( free_all && sie->si_cookieState ) {
3079                 ch_free( sie->si_cookieState->cs_sids );
3080                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3081                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3082                 ch_free( sie->si_cookieState );
3083         }
3084         do {
3085                 si_next = sie->si_next;
3086
3087                 if ( sie->si_ld ) {
3088                         if ( sie->si_conn_setup ) {
3089                                 ber_socket_t s;
3090                                 ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
3091                                 connection_client_stop( s );
3092                                 sie->si_conn_setup = 0;
3093                         }
3094                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3095                 }
3096
3097                 /* re-fetch it, in case it was already removed */
3098                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3099                 if ( sie->si_re ) {
3100                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3101                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3102                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3103                 }
3104
3105                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3106
3107                 bindconf_free( &sie->si_bindconf );
3108
3109                 if ( sie->si_filterstr.bv_val ) {
3110                         ch_free( sie->si_filterstr.bv_val );
3111                 }
3112                 if ( sie->si_logfilterstr.bv_val ) {
3113                         ch_free( sie->si_logfilterstr.bv_val );
3114                 }
3115                 if ( sie->si_base.bv_val ) {
3116                         ch_free( sie->si_base.bv_val );
3117                 }
3118                 if ( sie->si_logbase.bv_val ) {
3119                         ch_free( sie->si_logbase.bv_val );
3120                 }
3121                 if ( sie->si_attrs ) {
3122                         int i = 0;
3123                         while ( sie->si_attrs[i] != NULL ) {
3124                                 ch_free( sie->si_attrs[i] );
3125                                 i++;
3126                         }
3127                         ch_free( sie->si_attrs );
3128                 }
3129                 if ( sie->si_exattrs ) {
3130                         int i = 0;
3131                         while ( sie->si_exattrs[i] != NULL ) {
3132                                 ch_free( sie->si_exattrs[i] );
3133                                 i++;
3134                         }
3135                         ch_free( sie->si_exattrs );
3136                 }
3137                 if ( sie->si_anlist ) {
3138                         int i = 0;
3139                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3140                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3141                                 i++;
3142                         }
3143                         ch_free( sie->si_anlist );
3144                 }
3145                 if ( sie->si_exanlist ) {
3146                         int i = 0;
3147                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3148                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3149                                 i++;
3150                         }
3151                         ch_free( sie->si_exanlist );
3152                 }
3153                 if ( sie->si_retryinterval ) {
3154                         ch_free( sie->si_retryinterval );
3155                 }
3156                 if ( sie->si_retrynum ) {
3157                         ch_free( sie->si_retrynum );
3158                 }
3159                 if ( sie->si_retrynum_init ) {
3160                         ch_free( sie->si_retrynum_init );
3161                 }
3162                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3163                 if ( sie->si_presentlist ) {
3164                     avl_free( sie->si_presentlist, avl_ber_bvfree );
3165                 }
3166                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3167                         struct nonpresent_entry* npe;
3168                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3169                         LDAP_LIST_REMOVE( npe, npe_link );
3170                         if ( npe->npe_name ) {
3171                                 if ( npe->npe_name->bv_val ) {
3172                                         ch_free( npe->npe_name->bv_val );
3173                                 }
3174                                 ch_free( npe->npe_name );
3175                         }
3176                         if ( npe->npe_nname ) {
3177                                 if ( npe->npe_nname->bv_val ) {
3178                                         ch_free( npe->npe_nname->bv_val );
3179                                 }
3180                                 ch_free( npe->npe_nname );
3181                         }
3182                         ch_free( npe );
3183                 }
3184                 ch_free( sie );
3185                 sie = si_next;
3186         } while ( free_all && si_next );
3187 }
3188
3189
3190
3191 /* NOTE: used & documented in slapd.conf(5) */
3192 #define IDSTR                   "rid"
3193 #define PROVIDERSTR             "provider"
3194 #define SCHEMASTR               "schemachecking"
3195 #define FILTERSTR               "filter"
3196 #define SEARCHBASESTR           "searchbase"
3197 #define SCOPESTR                "scope"
3198 #define ATTRSONLYSTR            "attrsonly"
3199 #define ATTRSSTR                "attrs"
3200 #define TYPESTR                 "type"
3201 #define INTERVALSTR             "interval"
3202 #define RETRYSTR                "retry"
3203 #define SLIMITSTR               "sizelimit"
3204 #define TLIMITSTR               "timelimit"
3205 #define SYNCDATASTR             "syncdata"
3206 #define LOGBASESTR              "logbase"
3207 #define LOGFILTERSTR    "logfilter"
3208
3209 /* FIXME: undocumented */
3210 #define EXATTRSSTR              "exattrs"
3211 #define MANAGEDSAITSTR          "manageDSAit"
3212
3213 /* mandatory */
3214 #define GOT_ID                  0x0001
3215 #define GOT_PROVIDER    0x0002
3216 #define GOT_BASE                0x0004
3217
3218 /* check */
3219 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3220
3221 static struct {
3222         struct berval key;
3223         int val;
3224 } scopes[] = {
3225         { BER_BVC("base"), LDAP_SCOPE_BASE },
3226         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3227         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3228         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3229         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3230         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3231         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3232         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3233         { BER_BVNULL, 0 }
3234 };
3235
3236 static slap_verbmasks datamodes[] = {
3237         { BER_BVC("default"), SYNCDATA_DEFAULT },
3238         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3239         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3240         { BER_BVNULL, 0 }
3241 };
3242
3243 static int
3244 parse_syncrepl_line(
3245         ConfigArgs      *c,
3246         syncinfo_t      *si )
3247 {
3248         int     gots = 0;
3249         int     i;
3250         char    *val;
3251
3252         for ( i = 1; i < c->argc; i++ ) {
3253                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3254                                         STRLENOF( IDSTR "=" ) ) )
3255                 {
3256                         int tmp;
3257                         /* '\0' string terminator accounts for '=' */
3258                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3259                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3260                                 snprintf( c->msg, sizeof( c->msg ),
3261                                         "Error: parse_syncrepl_line: "
3262                                         "unable to parse syncrepl id \"%s\"", val );
3263                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3264                                 return -1;
3265                         }
3266                         if ( tmp >= 1000 || tmp < 0 ) {
3267                                 snprintf( c->msg, sizeof( c->msg ),
3268                                         "Error: parse_syncrepl_line: "
3269                                         "syncrepl id %d is out of range [0..999]", tmp );
3270                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3271                                 return -1;
3272                         }
3273                         si->si_rid = tmp;
3274                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3275                         gots |= GOT_ID;
3276                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3277                                         STRLENOF( PROVIDERSTR "=" ) ) )
3278                 {
3279                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3280                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3281                         gots |= GOT_PROVIDER;
3282                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3283                                         STRLENOF( SCHEMASTR "=" ) ) )
3284                 {
3285                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3286                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3287                                 si->si_schemachecking = 1;
3288                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3289                                 si->si_schemachecking = 0;
3290                         } else {
3291                                 si->si_schemachecking = 1;
3292                         }
3293                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3294                                         STRLENOF( FILTERSTR "=" ) ) )
3295                 {
3296                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3297                         if ( si->si_filterstr.bv_val )
3298                                 ch_free( si->si_filterstr.bv_val );
3299                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3300                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3301                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3302                 {
3303                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3304                         if ( si->si_logfilterstr.bv_val )
3305                                 ch_free( si->si_logfilterstr.bv_val );
3306                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3307                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3308                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3309                 {
3310                         struct berval   bv;
3311                         int             rc;
3312
3313                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3314                         if ( si->si_base.bv_val ) {
3315                                 ch_free( si->si_base.bv_val );
3316                         }
3317                         ber_str2bv( val, 0, 0, &bv );
3318                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3319                         if ( rc != LDAP_SUCCESS ) {
3320                                 snprintf( c->msg, sizeof( c->msg ),
3321                                         "Invalid base DN \"%s\": %d (%s)",
3322                                         val, rc, ldap_err2string( rc ) );
3323                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3324                                 return -1;
3325                         }
3326                         gots |= GOT_BASE;
3327                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3328                                         STRLENOF( LOGBASESTR "=" ) ) )
3329                 {
3330                         struct berval   bv;
3331                         int             rc;
3332
3333                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3334                         if ( si->si_logbase.bv_val ) {
3335                                 ch_free( si->si_logbase.bv_val );
3336                         }
3337                         ber_str2bv( val, 0, 0, &bv );
3338                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3339                         if ( rc != LDAP_SUCCESS ) {
3340                                 snprintf( c->msg, sizeof( c->msg ),
3341                                         "Invalid logbase DN \"%s\": %d (%s)",
3342                                         val, rc, ldap_err2string( rc ) );
3343                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3344                                 return -1;
3345                         }
3346                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3347                                         STRLENOF( SCOPESTR "=" ) ) )
3348                 {
3349                         int j;
3350                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3351                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3352                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3353                                         si->si_scope = scopes[j].val;
3354                                         break;
3355                                 }
3356                         }
3357                         if ( BER_BVISNULL(&scopes[j].key) ) {
3358                                 snprintf( c->msg, sizeof( c->msg ),
3359                                         "Error: parse_syncrepl_line: "
3360                                         "unknown scope \"%s\"", val);
3361                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3362                                 return -1;
3363                         }
3364                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3365                                         STRLENOF( ATTRSONLYSTR ) ) )
3366                 {
3367                         si->si_attrsonly = 1;
3368                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3369                                         STRLENOF( ATTRSSTR "=" ) ) )
3370                 {
3371                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3372                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3373                                 char *attr_fname;
3374                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3375                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3376                                 if ( si->si_anlist == NULL ) {
3377                                         ch_free( attr_fname );
3378                                         return -1;
3379                                 }
3380                                 si->si_anfile = attr_fname;
3381                         } else {
3382                                 char *str, *s, *next;
3383                                 char delimstr[] = " ,\t";
3384                                 str = ch_strdup( val );
3385                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3386                                                 s != NULL;
3387                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3388                                 {
3389                                         if ( strlen(s) == 1 && *s == '*' ) {
3390                                                 si->si_allattrs = 1;
3391                                                 val[ s - str ] = delimstr[0];
3392                                         }
3393                                         if ( strlen(s) == 1 && *s == '+' ) {
3394                                                 si->si_allopattrs = 1;
3395                                                 val [ s - str ] = delimstr[0];
3396                                         }
3397                                 }
3398                                 ch_free( str );
3399                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3400                                 if ( si->si_anlist == NULL ) {
3401                                         return -1;
3402                                 }
3403                         }
3404                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3405                                         STRLENOF( EXATTRSSTR "=" ) ) )
3406                 {
3407                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3408                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3409                                 char *attr_fname;
3410                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3411                                 si->si_exanlist = file2anlist(
3412                                         si->si_exanlist, attr_fname, " ,\t" );
3413                                 if ( si->si_exanlist == NULL ) {
3414                                         ch_free( attr_fname );
3415                                         return -1;
3416                                 }
3417                                 ch_free( attr_fname );
3418                         } else {
3419                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3420                                 if ( si->si_exanlist == NULL ) {
3421                                         return -1;
3422                                 }
3423                         }
3424                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3425                                         STRLENOF( TYPESTR "=" ) ) )
3426                 {
3427                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3428                         if ( !strncasecmp( val, "refreshOnly",
3429                                                 STRLENOF("refreshOnly") ) )
3430                         {
3431                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3432                         } else if ( !strncasecmp( val, "refreshAndPersist",
3433                                                 STRLENOF("refreshAndPersist") ) )
3434                         {
3435                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3436                                 si->si_interval = 60;
3437                         } else {
3438                                 snprintf( c->msg, sizeof( c->msg ),
3439                                         "Error: parse_syncrepl_line: "
3440                                         "unknown sync type \"%s\"", val);
3441                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3442                                 return -1;
3443                         }
3444                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3445                                         STRLENOF( INTERVALSTR "=" ) ) )
3446                 {
3447                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3448                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3449                                 si->si_interval = 0;
3450                         } else if ( strchr( val, ':' ) != NULL ) {
3451                                 char *next, *ptr = val;
3452                                 unsigned dd, hh, mm, ss;
3453
3454                                 /* NOTE: the test for ptr[ 0 ] == '-'
3455                                  * should go before the call to strtoul() */
3456                                 dd = strtoul( ptr, &next, 10 );
3457                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' ) {
3458                                         snprintf( c->msg, sizeof( c->msg ),
3459                                                 "Error: parse_syncrepl_line: "
3460                                                 "invalid interval \"%s\", unable to parse days", val );
3461                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3462                                         return -1;
3463                                 }
3464                                 ptr = next + 1;
3465                                 hh = strtoul( ptr, &next, 10 );
3466                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || hh > 24 ) {
3467                                         snprintf( c->msg, sizeof( c->msg ),
3468                                                 "Error: parse_syncrepl_line: "
3469                                                 "invalid interval \"%s\", unable to parse hours", val );
3470                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3471                                         return -1;
3472                                 }
3473                                 ptr = next + 1;
3474                                 mm = strtoul( ptr, &next, 10 );
3475                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || mm > 60 ) {
3476                                         snprintf( c->msg, sizeof( c->msg ),
3477                                                 "Error: parse_syncrepl_line: "
3478                                                 "invalid interval \"%s\", unable to parse minutes", val );
3479                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3480                                         return -1;
3481                                 }
3482                                 ptr = next + 1;
3483                                 ss = strtoul( ptr, &next, 10 );
3484                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != '\0' || ss > 60 ) {
3485                                         snprintf( c->msg, sizeof( c->msg ),
3486                                                 "Error: parse_syncrepl_line: "
3487                                                 "invalid interval \"%s\", unable to parse seconds", val );
3488                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3489                                         return -1;
3490                                 }
3491                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3492                         } else {
3493                                 unsigned long   t;
3494
3495                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3496                                         snprintf( c->msg, sizeof( c->msg ),
3497                                                 "Error: parse_syncrepl_line: "
3498                                                 "invalid interval \"%s\"", val );
3499                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3500                                         return -1;
3501                                 }
3502                                 si->si_interval = (time_t)t;
3503                         }
3504                         if ( si->si_interval < 0 ) {
3505                                 snprintf( c->msg, sizeof( c->msg ),
3506                                         "Error: parse_syncrepl_line: "
3507                                         "invalid interval \"%ld\"",
3508                                         (long) si->si_interval);
3509                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3510                                 return -1;
3511                         }
3512                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3513                                         STRLENOF( RETRYSTR "=" ) ) )
3514                 {
3515                         char **retry_list;
3516                         int j, k, n;
3517
3518                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3519                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3520                         retry_list[0] = NULL;
3521
3522                         slap_str2clist( &retry_list, val, " ,\t" );
3523
3524                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3525                         n = k / 2;
3526                         if ( k % 2 ) {
3527                                 snprintf( c->msg, sizeof( c->msg ),
3528                                         "Error: incomplete syncrepl retry list" );
3529                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3530                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3531                                         ch_free( retry_list[k] );
3532                                 }
3533                                 ch_free( retry_list );
3534                                 return 1;
3535                         }
3536                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3537                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3538                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3539                         for ( j = 0; j < n; j++ ) {
3540                                 unsigned long   t;
3541                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3542                                         snprintf( c->msg, sizeof( c->msg ),
3543                                                 "Error: invalid retry interval \"%s\" (#%d)",
3544                                                 retry_list[j*2], j );
3545                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3546                                         /* do some cleanup */
3547                                         return 1;
3548                                 }
3549                                 si->si_retryinterval[j] = (time_t)t;
3550                                 if ( *retry_list[j*2+1] == '+' ) {
3551                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3552                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3553                                         j++;
3554                                         break;
3555                                 } else {
3556                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3557                                                         || si->si_retrynum_init[j] <= 0 )
3558                                         {
3559                                                 snprintf( c->msg, sizeof( c->msg ),
3560                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3561                                                         retry_list[j*2+1], j );
3562                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3563                                                 /* do some cleanup */
3564                                                 return 1;
3565                                         }
3566                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3567                                                         || si->si_retrynum[j] <= 0 )
3568                                         {
3569                                                 snprintf( c->msg, sizeof( c->msg ),
3570                                                         "Error: invalid retry number \"%s\" (#%d)",
3571                                                         retry_list[j*2+1], j );
3572                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3573                                                 /* do some cleanup */
3574                                                 return 1;
3575                                         }
3576                                 }
3577                         }
3578                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3579                         si->si_retrynum[j] = RETRYNUM_TAIL;
3580                         si->si_retryinterval[j] = 0;
3581
3582                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3583                                 ch_free( retry_list[k] );
3584                         }
3585                         ch_free( retry_list );
3586                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3587                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3588                 {
3589                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3590                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3591                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3592                         {
3593                                 snprintf( c->msg, sizeof( c->msg ),
3594                                         "invalid manageDSAit value \"%s\".\n",
3595                                         val );
3596                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3597                                 return 1;
3598                         }
3599                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3600                                         STRLENOF( SLIMITSTR "=") ) )
3601                 {
3602                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3603                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3604                                 si->si_slimit = 0;
3605
3606                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3607                                 snprintf( c->msg, sizeof( c->msg ),
3608                                         "invalid size limit value \"%s\".\n",
3609                                         val );
3610                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3611                                 return 1;
3612                         }
3613                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3614                                         STRLENOF( TLIMITSTR "=" ) ) )
3615                 {
3616                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3617                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3618                                 si->si_tlimit = 0;
3619
3620                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3621                                 snprintf( c->msg, sizeof( c->msg ),
3622                                         "invalid time limit value \"%s\".\n",
3623                                         val );
3624                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3625                                 return 1;
3626                         }
3627                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3628                                         STRLENOF( SYNCDATASTR "=" ) ) )
3629                 {
3630                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3631                         si->si_syncdata = verb_to_mask( val, datamodes );
3632                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3633                         snprintf( c->msg, sizeof( c->msg ),
3634                                 "Error: parse_syncrepl_line: "
3635                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3636                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3637                         return -1;
3638                 }
3639         }
3640
3641         if ( gots != GOT_ALL ) {
3642                 snprintf( c->msg, sizeof( c->msg ),
3643                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3644                         gots & GOT_ID ? "" : " "IDSTR,
3645                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3646                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3647                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3648                 return -1;
3649         }
3650
3651         return 0;
3652 }
3653
3654 static int
3655 add_syncrepl(
3656         ConfigArgs *c )
3657 {
3658         syncinfo_t *si;
3659         int     rc = 0;
3660
3661         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3662                 snprintf( c->msg, sizeof(c->msg), "database %s does not support "
3663                         "operations required for syncrepl", c->be->be_type );
3664                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
3665                 return 1;
3666         }
3667         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3668                 strcpy( c->msg, "rootDN must be defined before syncrepl may be used" );
3669                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
3670                 return 1;
3671         }
3672         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3673
3674         if ( si == NULL ) {
3675                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3676                 return 1;
3677         }
3678
3679         si->si_bindconf.sb_tls = SB_TLS_OFF;
3680         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3681         si->si_schemachecking = 0;
3682         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3683                 &si->si_filterstr );
3684         si->si_base.bv_val = NULL;
3685         si->si_scope = LDAP_SCOPE_SUBTREE;
3686         si->si_attrsonly = 0;
3687         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3688         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3689         si->si_attrs = NULL;
3690         si->si_allattrs = 0;
3691         si->si_allopattrs = 0;
3692         si->si_exattrs = NULL;
3693         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3694         si->si_interval = 86400;
3695         si->si_retryinterval = NULL;
3696         si->si_retrynum_init = NULL;
3697         si->si_retrynum = NULL;
3698         si->si_manageDSAit = 0;
3699         si->si_tlimit = 0;
3700         si->si_slimit = 0;
3701         si->si_conn_setup = 0;
3702
3703         si->si_presentlist = NULL;
3704         LDAP_LIST_INIT( &si->si_nonpresentlist );
3705         ldap_pvt_thread_mutex_init( &si->si_mutex );
3706
3707         rc = parse_syncrepl_line( c, si );
3708
3709         if ( rc == 0 ) {
3710                 /* Must be LDAPv3 because we need controls */
3711                 switch ( si->si_bindconf.sb_version ) {
3712                 case 0:
3713                         /* not explicitly set */
3714                         si->si_bindconf.sb_version = LDAP_VERSION3;
3715                         break;
3716                 case 3:
3717                         /* explicitly set */
3718                         break;
3719                 default:
3720                         Debug( LDAP_DEBUG_ANY,
3721                                 "version %d incompatible with syncrepl\n",
3722                                 si->si_bindconf.sb_version, 0, 0 );
3723                         syncinfo_free( si, 0 );
3724                         return 1;
3725                 }
3726
3727                 si->si_be = c->be;
3728                 if ( slapMode & SLAP_SERVER_MODE ) {
3729                         Listener **l = slapd_get_listeners();
3730                         int isMe = 0;
3731
3732                         /* check if URL points to current server. If so, ignore
3733                          * this configuration. We require an exact match. Just
3734                          * in case they really want to do this, they can vary
3735                          * the case of the URL to allow it.
3736                          */
3737                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3738                                 int i;
3739                                 for ( i=0; l[i]; i++ ) {
3740                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3741                                                 isMe = 1;
3742                                                 break;
3743                                         }
3744                                 }
3745                         }
3746
3747                         if ( !isMe ) {
3748                                 init_syncrepl( si );
3749                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3750                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3751                                         si->si_ridtxt );
3752                                 if ( si->si_re )
3753                                         rc = config_sync_shadow( c ) ? -1 : 0;
3754                                 else
3755                                         rc = -1;
3756                         }
3757                 }
3758         }
3759
3760 #ifdef HAVE_TLS
3761         /* Use main slapd defaults */
3762         bindconf_tls_defaults( &si->si_bindconf );
3763 #endif
3764         if ( rc < 0 ) {
3765                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3766                 syncinfo_free( si, 0 );
3767                 return 1;
3768         } else {
3769                 Debug( LDAP_DEBUG_CONFIG,
3770                         "Config: ** successfully added syncrepl \"%s\"\n",
3771                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3772                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3773                 if ( !si->si_schemachecking ) {
3774                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3775                 }
3776                 if ( c->be->be_syncinfo ) {
3777                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3778                 } else {
3779                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3780                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3781                 }
3782                 si->si_next = c->be->be_syncinfo;
3783                 c->be->be_syncinfo = si;
3784                 return 0;
3785         }
3786 }
3787
3788 static void
3789 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3790 {
3791         struct berval bc, uri;
3792         char buf[BUFSIZ*2], *ptr;
3793         int i;
3794
3795 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3796
3797         BER_BVZERO( bv );
3798
3799         /* temporarily inhibit bindconf from printing URI */
3800         uri = si->si_bindconf.sb_uri;
3801         BER_BVZERO( &si->si_bindconf.sb_uri );
3802         si->si_bindconf.sb_version = 0;
3803         bindconf_unparse( &si->si_bindconf, &bc );
3804         si->si_bindconf.sb_uri = uri;
3805         si->si_bindconf.sb_version = LDAP_VERSION3;
3806
3807         ptr = buf;
3808         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
3809                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3810         if ( ptr - buf >= sizeof( buf ) ) return;
3811         if ( !BER_BVISNULL( &bc ) ) {
3812                 if ( WHATSLEFT <= bc.bv_len ) {
3813                         free( bc.bv_val );
3814                         return;
3815                 }
3816                 ptr = lutil_strcopy( ptr, bc.bv_val );
3817                 free( bc.bv_val );
3818         }
3819         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3820                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3821                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3822                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3823                 *ptr++ = '"';
3824         }
3825         if ( !BER_BVISNULL( &si->si_base ) ) {
3826                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3827                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3828                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3829                 *ptr++ = '"';
3830         }
3831         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3832                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3833                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3834                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3835                 *ptr++ = '"';
3836         }
3837         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3838                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3839                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3840                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3841                 *ptr++ = '"';
3842         }
3843         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
3844                 if ( si->si_scope == scopes[i].val ) {
3845                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
3846                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
3847                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
3848                         break;
3849                 }
3850         }
3851         if ( si->si_attrsonly ) {
3852                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3853                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
3854         }
3855         if ( si->si_anfile ) {
3856                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
3857                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
3858                 ptr = lutil_strcopy( ptr, si->si_anfile );
3859                 *ptr++ = '"';
3860         } else if ( si->si_allattrs || si->si_allopattrs ||
3861                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
3862         {
3863                 char *old;
3864
3865                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3866                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
3867                 old = ptr;
3868                 /* FIXME: add check for overflow */
3869                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
3870                 if ( si->si_allattrs ) {
3871                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
3872                         if ( old != ptr ) *ptr++ = ',';
3873                         *ptr++ = '*';
3874                 }
3875                 if ( si->si_allopattrs ) {
3876                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
3877                         if ( old != ptr ) *ptr++ = ',';
3878                         *ptr++ = '+';
3879                 }
3880                 *ptr++ = '"';
3881         }
3882         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
3883                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
3884                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
3885                 /* FIXME: add check for overflow */
3886                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
3887         }
3888         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
3889         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
3890         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
3891
3892         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
3893         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
3894         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
3895                 "refreshAndPersist" : "refreshOnly" );
3896
3897         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
3898                 int dd, hh, mm, ss;
3899
3900                 dd = si->si_interval;
3901                 ss = dd % 60;
3902                 dd /= 60;
3903                 mm = dd % 60;
3904                 dd /= 60;
3905                 hh = dd % 24;
3906                 dd /= 24;
3907                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
3908                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
3909                 if ( ptr - buf >= sizeof( buf ) ) return;
3910         } else if ( si->si_retryinterval ) {
3911                 int space=0;
3912                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
3913                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
3914                 for (i=0; si->si_retryinterval[i]; i++) {
3915                         if ( space ) *ptr++ = ' ';
3916                         space = 1;
3917                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
3918                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
3919                                 *ptr++ = '+';
3920                         else
3921                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
3922                 }
3923                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
3924                 *ptr++ = '"';
3925         }
3926
3927         if ( si->si_slimit ) {
3928                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
3929                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
3930                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
3931         }
3932
3933         if ( si->si_tlimit ) {
3934                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
3935                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
3936                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
3937         }
3938
3939         if ( si->si_syncdata ) {
3940                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
3941                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
3942                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
3943                         ptr = lutil_strcopy( ptr, bc.bv_val );
3944                 }
3945         }
3946         bc.bv_len = ptr - buf;
3947         bc.bv_val = buf;
3948         ber_dupbv( bv, &bc );
3949 }
3950
3951 int
3952 syncrepl_config( ConfigArgs *c )
3953 {
3954         if (c->op == SLAP_CONFIG_EMIT) {
3955                 if ( c->be->be_syncinfo ) {
3956                         struct berval bv;
3957                         syncinfo_t *si;
3958
3959                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
3960                                 syncrepl_unparse( si, &bv );
3961                                 ber_bvarray_add( &c->rvalue_vals, &bv );
3962                         }
3963                         return 0;
3964                 }
3965                 return 1;
3966         } else if ( c->op == LDAP_MOD_DELETE ) {
3967                 cookie_state *cs = NULL;
3968                 if ( c->be->be_syncinfo ) {
3969                         syncinfo_t *si, **sip;
3970                         int i;
3971
3972                         cs = c->be->be_syncinfo->si_cookieState;
3973                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
3974                                 si = *sip;
3975                                 if ( c->valx == -1 || i == c->valx ) {
3976                                         *sip = si->si_next;
3977                                         /* If the task is currently active, we have to leave
3978                                          * it running. It will exit on its own. This will only
3979                                          * happen when running on the cn=config DB.
3980                                          */
3981                                         if ( si->si_re &&
3982                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
3983                                                 si->si_ctype = 0;
3984                                         } else {
3985                                                 syncinfo_free( si, 0 );
3986                                         }
3987                                         if ( i == c->valx )
3988                                                 break;
3989                                 } else {
3990                                         sip = &si->si_next;
3991                                 }
3992                         }
3993                 }
3994                 if ( !c->be->be_syncinfo ) {
3995                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
3996                         if ( cs ) {
3997                                 ber_bvarray_free( cs->cs_vals );
3998                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
3999                                 ch_free( cs );
4000                         }
4001                 }
4002                 return 0;
4003         }
4004         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4005                 Debug(LDAP_DEBUG_ANY, "%s: "
4006                         "syncrepl: database already shadowed.\n",
4007                         c->log, 0, 0);
4008                 return(1);
4009         } else {
4010                 return add_syncrepl( c );
4011         }
4012 }