git.sur5r.net Git - openldap/blob - servers/slapd/syncrepl.c

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         ber_int_t       si_msgid;
 100         Avlnode                 *si_presentlist;
 101         LDAP                    *si_ld;
 102         Connection              *si_conn;
 103         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 104         ldap_pvt_thread_mutex_t si_mutex;
 105 } syncinfo_t;
 106
 107 static int syncuuid_cmp( const void *, const void * );
 108 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 109 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 110 static int syncrepl_message_to_op(
 111                                         syncinfo_t *, Operation *, LDAPMessage * );
 112 static int syncrepl_message_to_entry(
 113                                         syncinfo_t *, Operation *, LDAPMessage *,
 114                                         Modifications **, Entry **, int );
 115 static int syncrepl_entry(
 116                                         syncinfo_t *, Operation*, Entry*,
 117                                         Modifications**,int, struct berval*,
 118                                         struct berval *cookieCSN );
 119 static int syncrepl_updateCookie(
 120                                         syncinfo_t *, Operation *, struct berval *,
 121                                         struct sync_cookie * );
 122 static struct berval * slap_uuidstr_from_normalized(
 123                                         struct berval *, struct berval *, void * );
 124
 125 /* callback functions */
 126 static int dn_callback( Operation *, SlapReply * );
 127 static int nonpresent_callback( Operation *, SlapReply * );
 128 static int null_callback( Operation *, SlapReply * );
 129
 130 static AttributeDescription *sync_descs[4];
 131
 132 static const char *
 133 syncrepl_state2str( int state )
 134 {
 135         switch ( state ) {
 136         case LDAP_SYNC_PRESENT:
 137                 return "PRESENT";
 138
 139         case LDAP_SYNC_ADD:
 140                 return "ADD";
 141
 142         case LDAP_SYNC_MODIFY:
 143                 return "MODIFY";
 144
 145         case LDAP_SYNC_DELETE:
 146                 return "DELETE";
 147         }
 148
 149         return "UNKNOWN";
 150 }
 151
 152 static void
 153 init_syncrepl(syncinfo_t *si)
 154 {
 155         int i, j, k, l, n;
 156         char **attrs, **exattrs;
 157
 158         if ( !sync_descs[0] ) {
 159                 sync_descs[0] = slap_schema.si_ad_objectClass;
 160                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 161                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 162                 sync_descs[3] = NULL;
 163         }
 164
 165         if ( si->si_allattrs && si->si_allopattrs )
 166                 attrs = NULL;
 167         else
 168                 attrs = anlist2attrs( si->si_anlist );
 169
 170         if ( attrs ) {
 171                 if ( si->si_allattrs ) {
 172                         i = 0;
 173                         while ( attrs[i] ) {
 174                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 175                                         for ( j = i; attrs[j] != NULL; j++ ) {
 176                                                 if ( j == i )
 177                                                         ch_free( attrs[i] );
 178                                                 attrs[j] = attrs[j+1];
 179                                         }
 180                                 } else {
 181                                         i++;
 182                                 }
 183                         }
 184                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 185                         attrs[i] = ch_strdup("*");
 186                         attrs[i + 1] = NULL;
 187
 188                 } else if ( si->si_allopattrs ) {
 189                         i = 0;
 190                         while ( attrs[i] ) {
 191                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 192                                         for ( j = i; attrs[j] != NULL; j++ ) {
 193                                                 if ( j == i )
 194                                                         ch_free( attrs[i] );
 195                                                 attrs[j] = attrs[j+1];
 196                                         }
 197                                 } else {
 198                                         i++;
 199                                 }
 200                         }
 201                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 202                         attrs[i] = ch_strdup("+");
 203                         attrs[i + 1] = NULL;
 204                 }
 205
 206                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 207                         j = 0;
 208                         while ( attrs[j] ) {
 209                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 210                                         for ( k = j; attrs[k] != NULL; k++ ) {
 211                                                 if ( k == j )
 212                                                         ch_free( attrs[k] );
 213                                                 attrs[k] = attrs[k+1];
 214                                         }
 215                                 } else {
 216                                         j++;
 217                                 }
 218                         }
 219                 }
 220
 221                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 222
 223                 if ( si->si_allopattrs ) {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 225                 } else {
 226                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 227                 }
 228
 229                 /* Add Attributes */
 230                 if ( si->si_allopattrs ) {
 231                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 232                 } else {
 233                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 234                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 235                         }
 236                 }
 237                 attrs[ n ] = NULL;
 238
 239         } else {
 240
 241                 i = 0;
 242                 if ( si->si_allattrs == si->si_allopattrs ) {
 243                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 244                         attrs[i++] = ch_strdup( "*" );
 245                         attrs[i++] = ch_strdup( "+" );
 246                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 247                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 248                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 249                         attrs[i++] = ch_strdup( "*" );
 250                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 251                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 252                         }
 253                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 254                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 255                         attrs[i++] = ch_strdup( "+" );
 256                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 257                 }
 258                 attrs[i] = NULL;
 259         }
 260
 261         si->si_attrs = attrs;
 262
 263         exattrs = anlist2attrs( si->si_exanlist );
 264
 265         if ( exattrs ) {
 266                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 267
 268                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 269                         j = 0;
 270                         while ( exattrs[j] != NULL ) {
 271                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 272                                         ch_free( exattrs[j] );
 273                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 274                                                 exattrs[k] = exattrs[k+1];
 275                                         }
 276                                 } else {
 277                                         j++;
 278                                 }
 279                         }
 280                 }
 281
 282                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 283                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 284                                 ObjectClass     *oc;
 285                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 286                                         k = 0;
 287                                         while ( oc->soc_required[k] ) {
 288                                                 if ( !strcmp( exattrs[i],
 289                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 290                                                         ch_free( exattrs[i] );
 291                                                         for ( l = i; exattrs[l]; l++ ) {
 292                                                                 exattrs[l] = exattrs[l+1];
 293                                                         }
 294                                                 } else {
 295                                                         k++;
 296                                                 }
 297                                         }
 298                                 }
 299                         }
 300                 }
 301
 302                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 303
 304                 if ( i != n )
 305                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 306         }
 307
 308         si->si_exattrs = exattrs;
 309 }
 310
 311 typedef struct logschema {
 312         struct berval ls_dn;
 313         struct berval ls_req;
 314         struct berval ls_mod;
 315         struct berval ls_newRdn;
 316         struct berval ls_delRdn;
 317         struct berval ls_newSup;
 318 } logschema;
 319
 320 static logschema changelog_sc = {
 321         BER_BVC("targetDN"),
 322         BER_BVC("changeType"),
 323         BER_BVC("changes"),
 324         BER_BVC("newRDN"),
 325         BER_BVC("deleteOldRDN"),
 326         BER_BVC("newSuperior")
 327 };
 328
 329 static logschema accesslog_sc = {
 330         BER_BVC("reqDN"),
 331         BER_BVC("reqType"),
 332         BER_BVC("reqMod"),
 333         BER_BVC("reqNewRDN"),
 334         BER_BVC("reqDeleteOldRDN"),
 335         BER_BVC("reqNewSuperior")
 336 };
 337
 338 static int
 339 ldap_sync_search(
 340         syncinfo_t *si,
 341         void *ctx )
 342 {
 343         BerElementBuffer berbuf;
 344         BerElement *ber = (BerElement *)&berbuf;
 345         LDAPControl c[2], *ctrls[3];
 346         int rc;
 347         int rhint;
 348         char *base;
 349         char **attrs, *lattrs[8];
 350         char *filter;
 351         int attrsonly;
 352         int scope;
 353
 354         /* setup LDAP SYNC control */
 355         ber_init2( ber, NULL, LBER_USE_DER );
 356         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 357
 358         /* If we're using a log but we have no state, then fallback to
 359          * normal mode for a full refresh.
 360          */
 361         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 362                 si->si_logstate = SYNCLOG_FALLBACK;
 363         }
 364
 365         /* Use the log parameters if we're in log mode */
 366         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 367                 logschema *ls;
 368                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 369                         ls = &accesslog_sc;
 370                 else
 371                         ls = &changelog_sc;
 372                 lattrs[0] = ls->ls_dn.bv_val;
 373                 lattrs[1] = ls->ls_req.bv_val;
 374                 lattrs[2] = ls->ls_mod.bv_val;
 375                 lattrs[3] = ls->ls_newRdn.bv_val;
 376                 lattrs[4] = ls->ls_delRdn.bv_val;
 377                 lattrs[5] = ls->ls_newSup.bv_val;
 378                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 379                 lattrs[7] = NULL;
 380
 381                 rhint = 0;
 382                 base = si->si_logbase.bv_val;
 383                 filter = si->si_logfilterstr.bv_val;
 384                 attrs = lattrs;
 385                 attrsonly = 0;
 386                 scope = LDAP_SCOPE_SUBTREE;
 387         } else {
 388                 rhint = 1;
 389                 base = si->si_base.bv_val;
 390                 filter = si->si_filterstr.bv_val;
 391                 attrs = si->si_attrs;
 392                 attrsonly = si->si_attrsonly;
 393                 scope = si->si_scope;
 394         }
 395         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 396                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 397         } else {
 398                 si->si_type = si->si_ctype;
 399         }
 400
 401         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 402         {
 403                 ber_printf( ber, "{eOb}",
 404                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 405         } else {
 406                 ber_printf( ber, "{eb}",
 407                         abs(si->si_type), rhint );
 408         }
 409
 410         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 411                 ber_free_buf( ber );
 412                 return rc;
 413         }
 414
 415         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 416         c[0].ldctl_iscritical = si->si_type < 0;
 417         ctrls[0] = &c[0];
 418
 419         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 420                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 421                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 422                 c[1].ldctl_iscritical = 1;
 423                 ctrls[1] = &c[1];
 424                 ctrls[2] = NULL;
 425         } else {
 426                 ctrls[1] = NULL;
 427         }
 428
 429         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 430                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 431         ber_free_buf( ber );
 432         return rc;
 433 }
 434
 435 static int
 436 do_syncrep1(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         int     rc;
 441         int cmdline_cookie_found = 0;
 442
 443         struct sync_cookie      *sc = NULL;
 444 #ifdef HAVE_TLS
 445         void    *ssl;
 446 #endif
 447
 448         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 449         if ( rc != LDAP_SUCCESS ) {
 450                 goto done;
 451         }
 452         op->o_protocol = LDAP_VERSION3;
 453
 454         /* Set SSF to strongest of TLS, SASL SSFs */
 455         op->o_sasl_ssf = 0;
 456         op->o_tls_ssf = 0;
 457         op->o_transport_ssf = 0;
 458 #ifdef HAVE_TLS
 459         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 460                 == LDAP_SUCCESS && ssl != NULL )
 461         {
 462                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 463         }
 464 #endif /* HAVE_TLS */
 465         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 466         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 467                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 468
 469         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 470
 471         si->si_syncCookie.rid = si->si_rid;
 472         si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 473                 slap_serverID;
 474
 475         /* We've just started up, or the remote server hasn't sent us
 476          * any meaningful state.
 477          */
 478         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 479                 int i;
 480
 481                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 482                         if ( si->si_rid == sc->rid ) {
 483                                 cmdline_cookie_found = 1;
 484                                 break;
 485                         }
 486                 }
 487
 488                 if ( cmdline_cookie_found ) {
 489                         /* cookie is supplied in the command line */
 490
 491                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 492
 493                         /* ctxcsn wasn't parsed yet, do it now */
 494                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 495                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 496                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 497                         slap_sync_cookie_free( sc, 1 );
 498                 } else {
 499                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 500                         if ( !si->si_cookieState->cs_num ) {
 501                                 /* get contextCSN shadow replica from database */
 502                                 BerVarray csn = NULL;
 503                                 void *ctx = op->o_tmpmemctx;
 504
 505                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 506                                 op->o_req_dn = op->o_req_ndn;
 507
 508                                 /* try to read stored contextCSN */
 509                                 op->o_tmpmemctx = NULL;
 510                                 backend_attribute( op, NULL, &op->o_req_ndn,
 511                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 512                                 op->o_tmpmemctx = ctx;
 513                                 if ( csn ) {
 514                                         si->si_cookieState->cs_vals = csn;
 515                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 516                                         si->si_cookieState->cs_num = i;
 517                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 518                                 }
 519                         }
 520                         if ( si->si_cookieState->cs_num ) {
 521                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 522                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 523                                         si->si_cookieState->cs_vals, NULL )) {
 524                                         rc = LDAP_NO_MEMORY;
 525                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 526                                         goto done;
 527                                 }
 528                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 529                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 530                                         sizeof(int) );
 531                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 532                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 533                         }
 534                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 535                 }
 536
 537                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 538                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 539                         si->si_syncCookie.sid );
 540         } else {
 541                 AttributeName at[2];
 542                 Attribute a = {0};
 543                 Entry e = {0};
 544                 SlapReply rs = {0};
 545                 int i, j, changed = 0;
 546
 547                 /* Look for contextCSN from syncprov overlay. If
 548                  * there's no overlay, this will be a no-op. That means
 549                  * this is a pure consumer, so local changes will not be
 550                  * allowed, and all changes will already be reflected in
 551                  * the cookieState.
 552                  */
 553                 a.a_desc = slap_schema.si_ad_contextCSN;
 554                 e.e_attrs = &a;
 555                 e.e_name = op->o_bd->be_suffix[0];
 556                 e.e_nname = op->o_bd->be_nsuffix[0];
 557                 at[0].an_name = a.a_desc->ad_cname;
 558                 at[0].an_desc = a.a_desc;
 559                 BER_BVZERO( &at[1].an_name );
 560                 rs.sr_entry = &e;
 561                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 562                 rs.sr_attrs = at;
 563                 op->o_req_dn = e.e_name;
 564                 op->o_req_ndn = e.e_nname;
 565
 566                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 567                 rc = backend_operational( op, &rs );
 568                 if ( rc == LDAP_SUCCESS && a.a_nvals ) {
 569                         int num = a.a_numvals;
 570                         /* check for differences */
 571                         if ( num != si->si_cookieState->cs_num ) {
 572                                 changed = 1;
 573                         } else {
 574                                 for ( i=0; i<num; i++ ) {
 575                                         if ( ber_bvcmp( &a.a_nvals[i],
 576                                                 &si->si_cookieState->cs_vals[i] )) {
 577                                                 changed =1;
 578                                                 break;
 579                                         }
 580                                 }
 581                         }
 582                         if ( changed ) {
 583                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 584                                 ch_free( si->si_cookieState->cs_sids );
 585                                 si->si_cookieState->cs_num = num;
 586                                 si->si_cookieState->cs_vals = a.a_nvals;
 587                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 588                                         num, NULL );
 589                                 si->si_cookieState->cs_age++;
 590                         } else {
 591                                 ber_bvarray_free( a.a_nvals );
 592                         }
 593                         ber_bvarray_free( a.a_vals );
 594                 }
 595                 /* See if the cookieState has changed due to anything outside
 596                  * this particular consumer. That includes other consumers in
 597                  * the same context, or local changes detected above.
 598                  */
 599                 if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 600                         si->si_cookieState->cs_age ) {
 601                         if ( !si->si_syncCookie.numcsns ) {
 602                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 603                                 ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 604                                         si->si_cookieState->cs_vals, NULL );
 605                                 changed = 1;
 606                         } else {
 607                                 for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 608                                         /* bogus, just dup everything */
 609                                         if ( si->si_syncCookie.sids[i] == -1 ) {
 610                                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 611                                                 ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 612                                                         si->si_cookieState->cs_vals, NULL );
 613                                                 changed = 1;
 614                                                 break;
 615                                         }
 616                                         for (j=0; j<si->si_cookieState->cs_num; j++) {
 617                                                 if ( si->si_syncCookie.sids[i] !=
 618                                                         si->si_cookieState->cs_sids[j] )
 619                                                         continue;
 620                                                 if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 621                                                         &si->si_cookieState->cs_vals[j] ))
 622                                                         break;
 623                                                 ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 624                                                         &si->si_cookieState->cs_vals[j] );
 625                                                 changed = 1;
 626                                                 break;
 627                                         }
 628                                 }
 629                         }
 630                 }
 631                 if ( changed ) {
 632                         si->si_cookieAge = si->si_cookieState->cs_age;
 633                         ch_free( si->si_syncCookie.octet_str.bv_val );
 634                         slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 635                                 si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 636                                 si->si_syncCookie.sid );
 637                 }
 638                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 639         }
 640
 641         si->si_refreshDone = 0;
 642
 643         rc = ldap_sync_search( si, op->o_tmpmemctx );
 644
 645         if( rc != LDAP_SUCCESS ) {
 646                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 647                         "ldap_search_ext: %s (%d)\n",
 648                         si->si_ridtxt, ldap_err2string( rc ), rc );
 649         }
 650
 651 done:
 652         if ( rc ) {
 653                 if ( si->si_ld ) {
 654                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 655                         si->si_ld = NULL;
 656                 }
 657         }
 658
 659         return rc;
 660 }
 661
 662 static int
 663 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 664 {
 665         int i, j, match = 0;
 666         const char *text;
 667
 668         *which = 0;
 669
 670         if ( sc1->numcsns < sc2->numcsns ) {
 671                 *which = sc1->numcsns;
 672                 return -1;
 673         }
 674
 675         for (i=0; i<sc1->numcsns; i++) {
 676                 for (j=0; i<sc2->numcsns; j++) {
 677                         if ( sc1->sids[i] != sc2->sids[j] )
 678                                 continue;
 679                         value_match( &match, slap_schema.si_ad_entryCSN,
 680                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 681                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 682                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 683                         if ( match < 0 ) {
 684                                 *which = j;
 685                                 return match;
 686                         }
 687                         break;
 688                 }
 689         }
 690         return match;
 691 }
 692
 693 #define SYNC_PAUSED     -3
 694
 695 static int
 696 do_syncrep2(
 697         Operation *op,
 698         syncinfo_t *si )
 699 {
 700         LDAPControl     **rctrls = NULL;
 701         LDAPControl     *rctrlp;
 702
 703         BerElementBuffer berbuf;
 704         BerElement      *ber = (BerElement *)&berbuf;
 705
 706         LDAPMessage     *msg = NULL;
 707
 708         char            *retoid = NULL;
 709         struct berval   *retdata = NULL;
 710
 711         Entry           *entry = NULL;
 712
 713         int             syncstate;
 714         struct berval   syncUUID = BER_BVNULL;
 715         struct sync_cookie      syncCookie = { NULL };
 716         struct sync_cookie      syncCookie_req = { NULL };
 717         struct berval           cookie = BER_BVNULL;
 718
 719         int             rc,
 720                         err = LDAP_SUCCESS;
 721         ber_len_t       len;
 722
 723         struct berval   *psub;
 724         Modifications   *modlist = NULL;
 725
 726         int                             match, m;
 727
 728         struct timeval *tout_p = NULL;
 729         struct timeval tout = { 0, 0 };
 730
 731         int             refreshDeletes = 0;
 732         BerVarray syncUUIDs = NULL;
 733         ber_tag_t si_tag;
 734
 735         if ( slapd_shutdown ) {
 736                 rc = -2;
 737                 goto done;
 738         }
 739
 740         ber_init2( ber, NULL, LBER_USE_DER );
 741         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 742
 743         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 744
 745         psub = &si->si_be->be_nsuffix[0];
 746
 747         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 748
 749         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 750                 tout_p = &tout;
 751         } else {
 752                 tout_p = NULL;
 753         }
 754
 755         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 756                 tout_p, &msg ) ) > 0 )
 757         {
 758                 if ( slapd_shutdown ) {
 759                         rc = -2;
 760                         goto done;
 761                 }
 762                 switch( ldap_msgtype( msg ) ) {
 763                 case LDAP_RES_SEARCH_ENTRY:
 764                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 765                         /* we can't work without the control */
 766                         rctrlp = NULL;
 767                         if ( rctrls ) {
 768                                 LDAPControl **next;
 769                                 /* NOTE: make sure we use the right one;
 770                                  * a better approach would be to run thru
 771                                  * the whole list and take care of all */
 772                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 773                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 774                                 {
 775                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 776                                                 "got search entry with multiple "
 777                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 778                                         rc = -1;
 779                                         goto done;
 780                                 }
 781                         }
 782                         if ( rctrlp == NULL ) {
 783                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 784                                         "got search entry without "
 785                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 786                                 rc = -1;
 787                                 goto done;
 788                         }
 789                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 790                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 791                         /* FIXME: what if syncUUID is NULL or empty?
 792                          * (happens with back-sql...) */
 793                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 794                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 795                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 796                                         si->si_ridtxt,
 797                                         syncrepl_state2str( syncstate ), 0 );
 798                                 ldap_controls_free( rctrls );
 799                                 rc = -1;
 800                                 goto done;
 801                         }
 802                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 803                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 804
 805                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 806                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 807
 808                                 if ( !BER_BVISNULL( &cookie ) ) {
 809                                         ch_free( syncCookie.octet_str.bv_val );
 810                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 811                                 }
 812                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 813                                 {
 814                                         slap_parse_sync_cookie( &syncCookie, NULL );
 815                                         if ( syncCookie.ctxcsn ) {
 816                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 817                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 818                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 819                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 820                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 821                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 822                                                                 ldap_controls_free( rctrls );
 823                                                                 rc = 0;
 824                                                                 goto done;
 825                                                         }
 826                                                 }
 827                                         }
 828                                 }
 829                         }
 830                         rc = 0;
 831                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 832                                 modlist = NULL;
 833                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 834                                         syncCookie.ctxcsn )
 835                                 {
 836                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 837                                 } else switch ( rc ) {
 838                                         case LDAP_ALREADY_EXISTS:
 839                                         case LDAP_NO_SUCH_OBJECT:
 840                                         case LDAP_NO_SUCH_ATTRIBUTE:
 841                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 842                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 843                                                 si->si_logstate = SYNCLOG_FALLBACK;
 844                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 845                                                 break;
 846                                         default:
 847                                                 break;
 848                                 }
 849                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 850                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 851                         {
 852                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 853                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 854                                         syncCookie.ctxcsn )
 855                                 {
 856                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 857                                 }
 858                         }
 859                         ldap_controls_free( rctrls );
 860                         if ( modlist ) {
 861                                 slap_mods_free( modlist, 1 );
 862                         }
 863                         if ( rc )
 864                                 goto done;
 865                         break;
 866
 867                 case LDAP_RES_SEARCH_REFERENCE:
 868                         Debug( LDAP_DEBUG_ANY,
 869                                 "do_syncrep2: %s reference received error\n",
 870                                 si->si_ridtxt, 0, 0 );
 871                         break;
 872
 873                 case LDAP_RES_SEARCH_RESULT:
 874                         Debug( LDAP_DEBUG_SYNC,
 875                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 876                                 si->si_ridtxt, 0, 0 );
 877                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 878                                 &rctrls, 0 );
 879 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 880                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 881                                 /* map old result code to registered code */
 882                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 883                         }
 884 #endif
 885                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 886                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 887                                         si->si_logstate = SYNCLOG_FALLBACK;
 888                                 }
 889                                 rc = err;
 890                                 goto done;
 891                         }
 892                         if ( rctrls ) {
 893                                 rctrlp = *rctrls;
 894                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 895
 896                                 ber_scanf( ber, "{" /*"}"*/);
 897                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 898                                         ber_scanf( ber, "m", &cookie );
 899
 900                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 901                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 902
 903                                         if ( !BER_BVISNULL( &cookie ) ) {
 904                                                 ch_free( syncCookie.octet_str.bv_val );
 905                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 906                                         }
 907                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 908                                         {
 909                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 910                                         }
 911                                 }
 912                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 913                                 {
 914                                         ber_scanf( ber, "b", &refreshDeletes );
 915                                 }
 916                                 ber_scanf( ber, /*"{"*/ "}" );
 917                         }
 918                         if ( !syncCookie.ctxcsn ) {
 919                                 match = 1;
 920                         } else if ( !syncCookie_req.ctxcsn ) {
 921                                 match = -1;
 922                                 m = 0;
 923                         } else {
 924                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 925                         }
 926                         if ( rctrls ) {
 927                                 ldap_controls_free( rctrls );
 928                         }
 929                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 930                                 /* FIXME : different error behaviors according to
 931                                  *      1) err code : LDAP_BUSY ...
 932                                  *      2) on err policy : stop service, stop sync, retry
 933                                  */
 934                                 if ( refreshDeletes == 0 && match < 0 &&
 935                                         err == LDAP_SUCCESS )
 936                                 {
 937                                         syncrepl_del_nonpresent( op, si, NULL,
 938                                                 &syncCookie.ctxcsn[m] );
 939                                 } else {
 940                                         avl_free( si->si_presentlist, ch_free );
 941                                         si->si_presentlist = NULL;
 942                                 }
 943                         }
 944                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 945                         {
 946                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 947                         }
 948                         if ( err == LDAP_SUCCESS
 949                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 950                                 si->si_logstate = SYNCLOG_LOGGING;
 951                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 952                         } else {
 953                                 rc = -2;
 954                         }
 955                         goto done;
 956                         break;
 957
 958                 case LDAP_RES_INTERMEDIATE:
 959                         rc = ldap_parse_intermediate( si->si_ld, msg,
 960                                 &retoid, &retdata, NULL, 0 );
 961                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 962                                 ber_init2( ber, retdata, LBER_USE_DER );
 963
 964                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 965                                 ber_tag_t tag;
 966                                 case LDAP_TAG_SYNC_NEW_COOKIE:
 967                                         Debug( LDAP_DEBUG_SYNC,
 968                                                 "do_syncrep2: %s %s - %s\n",
 969                                                 si->si_ridtxt,
 970                                                 "LDAP_RES_INTERMEDIATE",
 971                                                 "NEW_COOKIE" );
 972                                         ber_scanf( ber, "tm", &tag, &cookie );
 973                                         break;
 974                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
 975                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
 976                                         Debug( LDAP_DEBUG_SYNC,
 977                                                 "do_syncrep2: %s %s - %s\n",
 978                                                 si->si_ridtxt,
 979                                                 "LDAP_RES_INTERMEDIATE",
 980                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 981                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
 982                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 983                                                 si->si_refreshDelete = 1;
 984                                         } else {
 985                                                 si->si_refreshPresent = 1;
 986                                         }
 987                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
 988                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 989                                         {
 990                                                 ber_scanf( ber, "m", &cookie );
 991
 992                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 993                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 994
 995                                                 if ( !BER_BVISNULL( &cookie ) ) {
 996                                                         ch_free( syncCookie.octet_str.bv_val );
 997                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 998                                                 }
 999                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1000                                                 {
1001                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1002                                                 }
1003                                         }
1004                                         /* Defaults to TRUE */
1005                                         if ( ber_peek_tag( ber, &len ) ==
1006                                                 LDAP_TAG_REFRESHDONE )
1007                                         {
1008                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1009                                         } else
1010                                         {
1011                                                 si->si_refreshDone = 1;
1012                                         }
1013                                         ber_scanf( ber, /*"{"*/ "}" );
1014                                         break;
1015                                 case LDAP_TAG_SYNC_ID_SET:
1016                                         Debug( LDAP_DEBUG_SYNC,
1017                                                 "do_syncrep2: %s %s - %s\n",
1018                                                 si->si_ridtxt,
1019                                                 "LDAP_RES_INTERMEDIATE",
1020                                                 "SYNC_ID_SET" );
1021                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1022                                         if ( ber_peek_tag( ber, &len ) ==
1023                                                 LDAP_TAG_SYNC_COOKIE )
1024                                         {
1025                                                 ber_scanf( ber, "m", &cookie );
1026
1027                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1028                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1029
1030                                                 if ( !BER_BVISNULL( &cookie ) ) {
1031                                                         ch_free( syncCookie.octet_str.bv_val );
1032                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1033                                                 }
1034                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1035                                                 {
1036                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1037                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1038                                                 }
1039                                         }
1040                                         if ( ber_peek_tag( ber, &len ) ==
1041                                                 LDAP_TAG_REFRESHDELETES )
1042                                         {
1043                                                 ber_scanf( ber, "b", &refreshDeletes );
1044                                         }
1045                                         ber_scanf( ber, "[W]", &syncUUIDs );
1046                                         ber_scanf( ber, /*"{"*/ "}" );
1047                                         if ( refreshDeletes ) {
1048                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1049                                                         &syncCookie.ctxcsn[m] );
1050                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1051                                         } else {
1052                                                 int i;
1053                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1054                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1055                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1056                                                 }
1057                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1058                                         }
1059                                         slap_sync_cookie_free( &syncCookie, 0 );
1060                                         break;
1061                                 default:
1062                                         Debug( LDAP_DEBUG_ANY,
1063                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1064                                                 si->si_ridtxt, (long) si_tag, 0 );
1065                                         ldap_memfree( retoid );
1066                                         ber_bvfree( retdata );
1067                                         continue;
1068                                 }
1069
1070                                 if ( !syncCookie.ctxcsn ) {
1071                                         match = 1;
1072                                 } else if ( !syncCookie_req.ctxcsn ) {
1073                                         match = -1;
1074                                         m = 0;
1075                                 } else {
1076                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1077                                 }
1078
1079                                 if ( match < 0 ) {
1080                                         if ( si->si_refreshPresent == 1 ) {
1081                                                 syncrepl_del_nonpresent( op, si, NULL,
1082                                                         &syncCookie.ctxcsn[m] );
1083                                         }
1084
1085                                         if ( syncCookie.ctxcsn )
1086                                         {
1087                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1088                                         }
1089                                 }
1090
1091                                 ldap_memfree( retoid );
1092                                 ber_bvfree( retdata );
1093                                 break;
1094
1095                         } else {
1096                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1097                                         "unknown intermediate response (%d)\n",
1098                                         si->si_ridtxt, rc, 0 );
1099                                 ldap_memfree( retoid );
1100                                 ber_bvfree( retdata );
1101                                 break;
1102                         }
1103                         break;
1104
1105                 default:
1106                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1107                                 "unknown message (0x%02lx)\n",
1108                                 si->si_ridtxt,
1109                                 (unsigned long)ldap_msgtype( msg ), 0 );
1110                         break;
1111
1112                 }
1113                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1114                         slap_sync_cookie_free( &syncCookie_req, 0 );
1115                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1116                         slap_sync_cookie_free( &syncCookie, 0 );
1117                 }
1118                 ldap_msgfree( msg );
1119                 msg = NULL;
1120                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1121                         slap_sync_cookie_free( &syncCookie, 0 );
1122                         slap_sync_cookie_free( &syncCookie_req, 0 );
1123                         return SYNC_PAUSED;
1124                 }
1125         }
1126
1127         if ( rc == -1 ) {
1128                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1129                 err = rc;
1130         }
1131
1132 done:
1133         if ( err != LDAP_SUCCESS ) {
1134                 Debug( LDAP_DEBUG_ANY,
1135                         "do_syncrep2: %s (%d) %s\n",
1136                         si->si_ridtxt, err, ldap_err2string( err ) );
1137         }
1138
1139         slap_sync_cookie_free( &syncCookie, 0 );
1140         slap_sync_cookie_free( &syncCookie_req, 0 );
1141
1142         if ( msg ) ldap_msgfree( msg );
1143
1144         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1145                 if ( si->si_conn ) {
1146                         connection_client_stop( si->si_conn );
1147                         si->si_conn = NULL;
1148                 }
1149                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1150                 si->si_ld = NULL;
1151         }
1152
1153         return rc;
1154 }
1155
1156 static void *
1157 do_syncrepl(
1158         void    *ctx,
1159         void    *arg )
1160 {
1161         struct re_s* rtask = arg;
1162         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1163         Connection conn = {0};
1164         OperationBuffer opbuf;
1165         Operation *op;
1166         int rc = LDAP_SUCCESS;
1167         int dostop = 0, do_setup = 0;
1168         ber_socket_t s;
1169         int i, defer = 1, fail = 0;
1170         Backend *be;
1171
1172         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1173
1174         if ( si == NULL )
1175                 return NULL;
1176
1177         /* There will never be more than one instance active */
1178         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1179
1180         switch( abs( si->si_type ) ) {
1181         case LDAP_SYNC_REFRESH_ONLY:
1182         case LDAP_SYNC_REFRESH_AND_PERSIST:
1183                 break;
1184         default:
1185                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1186                 return NULL;
1187         }
1188
1189         if ( slapd_shutdown ) {
1190                 if ( si->si_ld ) {
1191                         if ( si->si_conn ) {
1192                                 connection_client_stop( si->si_conn );
1193                                 si->si_conn = NULL;
1194                         }
1195                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1196                         si->si_ld = NULL;
1197                 }
1198                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1199                 return NULL;
1200         }
1201
1202         connection_fake_init( &conn, &opbuf, ctx );
1203         op = &opbuf.ob_op;
1204
1205         /* use global malloc for now */
1206         op->o_tmpmemctx = NULL;
1207         op->o_tmpmfuncs = &ch_mfuncs;
1208
1209         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1210         be = si->si_be;
1211
1212         /* Coordinate contextCSN updates with any syncprov overlays
1213          * in use. This may be complicated by the use of the glue
1214          * overlay.
1215          *
1216          * Typically there is a single syncprov mastering the entire
1217          * glued tree. In that case, our contextCSN updates should
1218          * go to the master DB.
1219          *
1220          * Alternatively, there may be individual syncprov overlays
1221          * on each glued branch. In that case, each syncprov only
1222          * knows about changes within its own branch. And so our
1223          * contextCSN updates should only go to the local DB.
1224          */
1225         if ( !si->si_wbe ) {
1226                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1227                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1228                 } else {
1229                         si->si_wbe = be;
1230                 }
1231         }
1232         if ( !si->si_schemachecking )
1233                 op->o_no_schema_check = 1;
1234
1235         /* Establish session, do search */
1236         if ( !si->si_ld ) {
1237                 si->si_refreshDelete = 0;
1238                 si->si_refreshPresent = 0;
1239
1240                 /* use main DB when retrieving contextCSN */
1241                 op->o_bd = si->si_wbe;
1242                 op->o_dn = op->o_bd->be_rootdn;
1243                 op->o_ndn = op->o_bd->be_rootndn;
1244                 rc = do_syncrep1( op, si );
1245         }
1246
1247 reload:
1248         /* Process results */
1249         if ( rc == LDAP_SUCCESS ) {
1250                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1251
1252                 /* use current DB */
1253                 op->o_bd = be;
1254                 op->o_dn = op->o_bd->be_rootdn;
1255                 op->o_ndn = op->o_bd->be_rootndn;
1256                 rc = do_syncrep2( op, si );
1257                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1258                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1259                         goto reload;
1260                 }
1261
1262                 /* We got deleted while running on cn=config */
1263                 if ( !si->si_ctype ) {
1264                         if ( si->si_conn )
1265                                 dostop = 1;
1266                         rc = -1;
1267                 }
1268
1269                 if ( rc != SYNC_PAUSED ) {
1270                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1271                                 /* If we succeeded, enable the connection for further listening.
1272                                  * If we failed, tear down the connection and reschedule.
1273                                  */
1274                                 if ( rc == LDAP_SUCCESS ) {
1275                                         if ( si->si_conn ) {
1276                                                 connection_client_enable( si->si_conn );
1277                                                 goto success;
1278                                         } else {
1279                                                 do_setup = 1;
1280                                         }
1281                                 } else if ( si->si_conn ) {
1282                                         dostop = 1;
1283                                 }
1284                         } else {
1285                                 if ( rc == -2 ) rc = 0;
1286                         }
1287                 }
1288         }
1289
1290         /* At this point, we have 5 cases:
1291          * 1) for any hard failure, give up and remove this task
1292          * 2) for ServerDown, reschedule this task to run later
1293          * 3) for threadpool pause, reschedule to run immediately
1294          * 4) for Refresh and Success, reschedule to run
1295          * 5) for Persist and Success, reschedule to defer
1296          */
1297         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1298
1299         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1300                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1301         }
1302
1303         if ( dostop ) {
1304                 connection_client_stop( si->si_conn );
1305                 si->si_conn = NULL;
1306         }
1307
1308         if ( rc == SYNC_PAUSED ) {
1309                 rtask->interval.tv_sec = 0;
1310                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1311                 rc = 0;
1312         } else if ( rc == LDAP_SUCCESS ) {
1313                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1314                         defer = 0;
1315                 }
1316                 rtask->interval.tv_sec = si->si_interval;
1317                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1318                 if ( si->si_retrynum ) {
1319                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1320                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1321                         }
1322                         si->si_retrynum[i] = RETRYNUM_TAIL;
1323                 }
1324         } else {
1325                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1326                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1327                                 break;
1328                 }
1329
1330                 if ( !si->si_ctype
1331                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1332                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1333                         fail = RETRYNUM_TAIL;
1334                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1335                         if ( si->si_retrynum[i] > 0 )
1336                                 si->si_retrynum[i]--;
1337                         fail = si->si_retrynum[i];
1338                         rtask->interval.tv_sec = si->si_retryinterval[i];
1339                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1340                         slap_wake_listener();
1341                 }
1342         }
1343
1344         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1345
1346         if ( do_setup )
1347                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1348
1349 success:
1350         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1351
1352         if ( rc ) {
1353                 if ( fail == RETRYNUM_TAIL ) {
1354                         Debug( LDAP_DEBUG_ANY,
1355                                 "do_syncrepl: %s quitting\n",
1356                                 si->si_ridtxt, 0, 0 );
1357                 } else if ( fail > 0 ) {
1358                         Debug( LDAP_DEBUG_ANY,
1359                                 "do_syncrepl: %s retrying (%d retries left)\n",
1360                                 si->si_ridtxt, fail, 0 );
1361                 } else {
1362                         Debug( LDAP_DEBUG_ANY,
1363                                 "do_syncrepl: %s retrying\n",
1364                                 si->si_ridtxt, 0, 0 );
1365                 }
1366         }
1367
1368         /* Do final delete cleanup */
1369         if ( !si->si_ctype ) {
1370                 cookie_state *cs = NULL;
1371                 syncinfo_t **sip;
1372
1373                 cs = be->be_syncinfo->si_cookieState;
1374                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1375                 *sip = si->si_next;
1376                 syncinfo_free( si, 0 );
1377                 if ( !be->be_syncinfo ) {
1378                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1379                         if ( cs ) {
1380                                 ch_free( cs->cs_sids );
1381                                 ber_bvarray_free( cs->cs_vals );
1382                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1383                                 ch_free( cs );
1384                         }
1385                 }
1386         }
1387         return NULL;
1388 }
1389
1390 static slap_verbmasks modops[] = {
1391         { BER_BVC("add"), LDAP_REQ_ADD },
1392         { BER_BVC("delete"), LDAP_REQ_DELETE },
1393         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1394         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1395         { BER_BVNULL, 0 }
1396 };
1397
1398 static Modifications *
1399 syncrepl_accesslog_mods(
1400         syncinfo_t *si,
1401         struct berval *vals
1402 )
1403 {
1404         char *colon;
1405         const char *text;
1406         AttributeDescription *ad;
1407         struct berval bv, bv2;
1408         short op;
1409         Modifications *mod = NULL, *modlist = NULL, **modtail;
1410         int i;
1411
1412         modtail = &modlist;
1413
1414         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1415                 ad = NULL;
1416                 bv = vals[i];
1417
1418                 colon = ber_bvchr( &bv, ':' );
1419                 if ( !colon ) {
1420                         /* Invalid */
1421                         continue;
1422                 }
1423
1424                 bv.bv_len = colon - bv.bv_val;
1425                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1426                         /* Invalid */
1427                         continue;
1428                 }
1429
1430                 /* Ignore dynamically generated attrs */
1431                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1432                         continue;
1433                 }
1434
1435                 /* Ignore excluded attrs */
1436                 if ( ldap_charray_inlist( si->si_exattrs,
1437                         ad->ad_type->sat_cname.bv_val ) )
1438                 {
1439                         continue;
1440                 }
1441
1442                 switch(colon[1]) {
1443                 case '+':       op = LDAP_MOD_ADD; break;
1444                 case '-':       op = LDAP_MOD_DELETE; break;
1445                 case '=':       op = LDAP_MOD_REPLACE; break;
1446                 case '#':       op = LDAP_MOD_INCREMENT; break;
1447                 default:        continue;
1448                 }
1449
1450                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1451                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1452                         mod->sml_flags = 0;
1453                         mod->sml_op = op;
1454                         mod->sml_next = NULL;
1455                         mod->sml_desc = ad;
1456                         mod->sml_type = ad->ad_cname;
1457                         mod->sml_values = NULL;
1458                         mod->sml_nvalues = NULL;
1459                         mod->sml_numvals = 0;
1460
1461                         *modtail = mod;
1462                         modtail = &mod->sml_next;
1463                 }
1464                 if ( colon[2] == ' ' ) {
1465                         bv.bv_val = colon + 3;
1466                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1467                         ber_dupbv( &bv2, &bv );
1468                         ber_bvarray_add( &mod->sml_values, &bv2 );
1469                         mod->sml_numvals++;
1470                 }
1471         }
1472         return modlist;
1473 }
1474
1475 static Modifications *
1476 syncrepl_changelog_mods(
1477         syncinfo_t *si,
1478         struct berval *vals
1479 )
1480 {
1481         return NULL;    /* FIXME */
1482 }
1483
1484 static int
1485 syncrepl_message_to_op(
1486         syncinfo_t      *si,
1487         Operation       *op,
1488         LDAPMessage     *msg
1489 )
1490 {
1491         BerElement      *ber = NULL;
1492         Modifications   *modlist = NULL;
1493         logschema *ls;
1494         SlapReply rs = { REP_RESULT };
1495         slap_callback cb = { NULL, null_callback, NULL, NULL };
1496
1497         const char      *text;
1498         char txtbuf[SLAP_TEXT_BUFLEN];
1499         size_t textlen = sizeof txtbuf;
1500
1501         struct berval   bdn, dn = BER_BVNULL, ndn;
1502         struct berval   bv, *bvals = NULL;
1503         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1504                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1505                 psup = BER_BVNULL, nsup = BER_BVNULL;
1506         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1507
1508         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1509                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1510                         "Message type should be entry (%d)",
1511                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1512                 return -1;
1513         }
1514
1515         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1516                 ls = &accesslog_sc;
1517         else
1518                 ls = &changelog_sc;
1519
1520         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1521
1522         if ( rc != LDAP_SUCCESS ) {
1523                 Debug( LDAP_DEBUG_ANY,
1524                         "syncrepl_message_to_op: %s dn get failed (%d)",
1525                         si->si_ridtxt, rc, 0 );
1526                 return rc;
1527         }
1528
1529         op->o_tag = LBER_DEFAULT;
1530         op->o_bd = si->si_wbe;
1531
1532         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1533                 == LDAP_SUCCESS ) {
1534                 if ( bv.bv_val == NULL )
1535                         break;
1536
1537                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1538                         bdn = bvals[0];
1539                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1540                         ber_dupbv( &op->o_req_dn, &dn );
1541                         ber_dupbv( &op->o_req_ndn, &ndn );
1542                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1543                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1544                         freeReqDn = 1;
1545                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1546                         int i = verb_to_mask( bvals[0].bv_val, modops );
1547                         if ( i < 0 ) {
1548                                 Debug( LDAP_DEBUG_ANY,
1549                                         "syncrepl_message_to_op: %s unknown op %s",
1550                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1551                                 ch_free( bvals );
1552                                 rc = -1;
1553                                 goto done;
1554                         }
1555                         op->o_tag = modops[i].mask;
1556                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1557                         /* Parse attribute into modlist */
1558                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1559                                 modlist = syncrepl_accesslog_mods( si, bvals );
1560                         } else {
1561                                 modlist = syncrepl_changelog_mods( si, bvals );
1562                         }
1563                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1564                         rdn = bvals[0];
1565                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1566                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1567                                 deleteOldRdn = 1;
1568                         }
1569                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1570                         sup = bvals[0];
1571                 } else if ( !ber_bvstrcasecmp( &bv,
1572                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1573                 {
1574                         slap_queue_csn( op, bvals );
1575                 }
1576                 ch_free( bvals );
1577         }
1578
1579         /* If we didn't get a mod type or a target DN, bail out */
1580         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1581                 rc = -1;
1582                 goto done;
1583         }
1584
1585         op->o_callback = &cb;
1586         slap_op_time( &op->o_time, &op->o_tincr );
1587
1588         switch( op->o_tag ) {
1589         case LDAP_REQ_ADD:
1590         case LDAP_REQ_MODIFY:
1591                 /* If we didn't get required data, bail */
1592                 if ( !modlist ) goto done;
1593
1594                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1595
1596                 if ( rc != LDAP_SUCCESS ) {
1597                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1598                                 "mods check (%s)\n",
1599                                 si->si_ridtxt, text, 0 );
1600                         goto done;
1601                 }
1602
1603                 if ( op->o_tag == LDAP_REQ_ADD ) {
1604                         Entry *e = entry_alloc();
1605                         op->ora_e = e;
1606                         op->ora_e->e_name = op->o_req_dn;
1607                         op->ora_e->e_nname = op->o_req_ndn;
1608                         freeReqDn = 0;
1609                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1610                         if( rc != LDAP_SUCCESS ) {
1611                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1612                                 "mods2entry (%s)\n",
1613                                         si->si_ridtxt, text, 0 );
1614                         } else {
1615                                 rc = op->o_bd->be_add( op, &rs );
1616                                 Debug( LDAP_DEBUG_SYNC,
1617                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1618                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1619                         }
1620                         if ( e == op->ora_e )
1621                                 be_entry_release_w( op, op->ora_e );
1622                 } else {
1623                         op->orm_modlist = modlist;
1624                         op->o_bd = si->si_wbe;
1625                         rc = op->o_bd->be_modify( op, &rs );
1626                         modlist = op->orm_modlist;
1627                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1628                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1629                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1630                         op->o_bd = si->si_be;
1631                 }
1632                 break;
1633         case LDAP_REQ_MODRDN:
1634                 if ( BER_BVISNULL( &rdn ) ) goto done;
1635
1636                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1637                         goto done;
1638                 }
1639                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1640                         goto done;
1641                 }
1642                 if ( !BER_BVISNULL( &sup ) ) {
1643                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1644                                 goto done;
1645                         }
1646                         op->orr_newSup = &psup;
1647                         op->orr_nnewSup = &nsup;
1648                 } else {
1649                         op->orr_newSup = NULL;
1650                         op->orr_nnewSup = NULL;
1651                 }
1652                 op->orr_newrdn = prdn;
1653                 op->orr_nnewrdn = nrdn;
1654                 op->orr_deleteoldrdn = deleteOldRdn;
1655                 op->orr_modlist = NULL;
1656                 if ( slap_modrdn2mods( op, &rs ) ) {
1657                         goto done;
1658                 }
1659
1660                 /* Append modlist for operational attrs */
1661                 {
1662                         Modifications *m;
1663
1664                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1665                                 ;
1666                         m->sml_next = modlist;
1667                         modlist = NULL;
1668                 }
1669                 rc = op->o_bd->be_modrdn( op, &rs );
1670                 slap_mods_free( op->orr_modlist, 1 );
1671                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1672                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1673                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1674                 break;
1675         case LDAP_REQ_DELETE:
1676                 rc = op->o_bd->be_delete( op, &rs );
1677                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1678                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1679                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1680                 break;
1681         }
1682 done:
1683         slap_graduate_commit_csn( op );
1684         op->o_bd = si->si_be;
1685         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1686         BER_BVZERO( &op->o_csn );
1687         if ( modlist ) {
1688                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1689         }
1690         if ( !BER_BVISNULL( &rdn ) ) {
1691                 if ( !BER_BVISNULL( &nsup ) ) {
1692                         ch_free( nsup.bv_val );
1693                 }
1694                 if ( !BER_BVISNULL( &psup ) ) {
1695                         ch_free( psup.bv_val );
1696                 }
1697                 if ( !BER_BVISNULL( &nrdn ) ) {
1698                         ch_free( nrdn.bv_val );
1699                 }
1700                 if ( !BER_BVISNULL( &prdn ) ) {
1701                         ch_free( prdn.bv_val );
1702                 }
1703         }
1704         if ( freeReqDn ) {
1705                 ch_free( op->o_req_ndn.bv_val );
1706                 ch_free( op->o_req_dn.bv_val );
1707         }
1708         ber_free( ber, 0 );
1709         return rc;
1710 }
1711
1712 static int
1713 syncrepl_message_to_entry(
1714         syncinfo_t      *si,
1715         Operation       *op,
1716         LDAPMessage     *msg,
1717         Modifications   **modlist,
1718         Entry                   **entry,
1719         int             syncstate
1720 )
1721 {
1722         Entry           *e = NULL;
1723         BerElement      *ber = NULL;
1724         Modifications   tmp;
1725         Modifications   *mod;
1726         Modifications   **modtail = modlist;
1727
1728         const char      *text;
1729         char txtbuf[SLAP_TEXT_BUFLEN];
1730         size_t textlen = sizeof txtbuf;
1731
1732         struct berval   bdn = BER_BVNULL, dn, ndn;
1733         int             rc, is_ctx;
1734
1735         *modlist = NULL;
1736
1737         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1738                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1739                         "Message type should be entry (%d)",
1740                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1741                 return -1;
1742         }
1743
1744         op->o_tag = LDAP_REQ_ADD;
1745
1746         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1747         if ( rc != LDAP_SUCCESS ) {
1748                 Debug( LDAP_DEBUG_ANY,
1749                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1750                         si->si_ridtxt, rc, 0 );
1751                 return rc;
1752         }
1753
1754         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1755                 /* NOTE: this could be done even before decoding the DN,
1756                  * although encoding errors wouldn't be detected */
1757                 rc = LDAP_SUCCESS;
1758                 goto done;
1759         }
1760
1761         if ( entry == NULL ) {
1762                 return -1;
1763         }
1764
1765         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1766         ber_dupbv( &op->o_req_dn, &dn );
1767         ber_dupbv( &op->o_req_ndn, &ndn );
1768         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1769         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1770
1771         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1772
1773         e = entry_alloc();
1774         e->e_name = op->o_req_dn;
1775         e->e_nname = op->o_req_ndn;
1776
1777         while ( ber_remaining( ber ) ) {
1778                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1779                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1780                 {
1781                         break;
1782                 }
1783
1784                 /* Drop all updates to the contextCSN of the context entry
1785                  * (ITS#4622, etc.)
1786                  */
1787                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1788                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1789                         ber_bvarray_free( tmp.sml_values );
1790                         continue;
1791                 }
1792
1793                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1794
1795                 mod->sml_op = LDAP_MOD_REPLACE;
1796                 mod->sml_flags = 0;
1797                 mod->sml_next = NULL;
1798                 mod->sml_desc = NULL;
1799                 mod->sml_type = tmp.sml_type;
1800                 mod->sml_values = tmp.sml_values;
1801                 mod->sml_nvalues = NULL;
1802                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1803
1804                 *modtail = mod;
1805                 modtail = &mod->sml_next;
1806         }
1807
1808         if ( *modlist == NULL ) {
1809                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1810                         si->si_ridtxt, 0, 0 );
1811                 rc = -1;
1812                 goto done;
1813         }
1814
1815         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1816
1817         if ( rc != LDAP_SUCCESS ) {
1818                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1819                         si->si_ridtxt, text, 0 );
1820                 goto done;
1821         }
1822
1823         /* Strip out dynamically generated attrs */
1824         for ( modtail = modlist; *modtail ; ) {
1825                 mod = *modtail;
1826                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1827                         *modtail = mod->sml_next;
1828                         slap_mod_free( &mod->sml_mod, 0 );
1829                         ch_free( mod );
1830                 } else {
1831                         modtail = &mod->sml_next;
1832                 }
1833         }
1834
1835         /* Strip out attrs in exattrs list */
1836         for ( modtail = modlist; *modtail ; ) {
1837                 mod = *modtail;
1838                 if ( ldap_charray_inlist( si->si_exattrs,
1839                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1840                 {
1841                         *modtail = mod->sml_next;
1842                         slap_mod_free( &mod->sml_mod, 0 );
1843                         ch_free( mod );
1844                 } else {
1845                         modtail = &mod->sml_next;
1846                 }
1847         }
1848
1849         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1850         if( rc != LDAP_SUCCESS ) {
1851                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1852                         si->si_ridtxt, text, 0 );
1853         }
1854
1855 done:
1856         ber_free( ber, 0 );
1857         if ( rc != LDAP_SUCCESS ) {
1858                 if ( e ) {
1859                         entry_free( e );
1860                         e = NULL;
1861                 }
1862         }
1863         if ( entry )
1864                 *entry = e;
1865
1866         return rc;
1867 }
1868
1869 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1870
1871 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1872  * entry if a previous refresh was interrupted before sending us a new
1873  * context state. We try to compare the new entry to the existing entry
1874  * and ignore the new entry if they are the same.
1875  *
1876  * Also, we may get an update where the entryDN has changed, due to
1877  * a ModDn on the provider. We detect this as well, so we can issue
1878  * the corresponding operation locally.
1879  *
1880  * In the case of a modify, we get a list of all the attributes
1881  * in the original entry. Rather than deleting the entry and re-adding it,
1882  * we issue a Modify request that deletes all the attributes and adds all
1883  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1884  * entry.
1885  *
1886  * We otherwise distinguish ModDN from Modify; in the case of
1887  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1888  * operational attributes from the entry, and do a regular ModDN.
1889  */
1890 typedef struct dninfo {
1891         Entry *new_entry;
1892         struct berval dn;
1893         struct berval ndn;
1894         int renamed;    /* Was an existing entry renamed? */
1895         int delOldRDN;  /* Was old RDN deleted? */
1896         Modifications **modlist;        /* the modlist we received */
1897         Modifications *mods;    /* the modlist we compared */
1898 } dninfo;
1899
1900 /* return 1 if inserted, 0 otherwise */
1901 static int
1902 avl_presentlist_insert(
1903         syncinfo_t* si,
1904         struct berval *syncUUID )
1905 {
1906         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1907
1908         syncuuid_bv->bv_len = syncUUID->bv_len;
1909         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1910         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1911         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1912
1913         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1914                 syncuuid_cmp, avl_dup_error ) )
1915         {
1916                 ch_free( syncuuid_bv );
1917                 return 0;
1918         }
1919
1920         return 1;
1921 }
1922
1923 static int
1924 syncrepl_entry(
1925         syncinfo_t* si,
1926         Operation *op,
1927         Entry* entry,
1928         Modifications** modlist,
1929         int syncstate,
1930         struct berval* syncUUID,
1931         struct berval* syncCSN )
1932 {
1933         Backend *be = op->o_bd;
1934         slap_callback   cb = { NULL, NULL, NULL, NULL };
1935         int syncuuid_inserted = 0;
1936         struct berval   syncUUID_strrep = BER_BVNULL;
1937
1938         SlapReply       rs_search = {REP_RESULT};
1939         SlapReply       rs_delete = {REP_RESULT};
1940         SlapReply       rs_add = {REP_RESULT};
1941         SlapReply       rs_modify = {REP_RESULT};
1942         Filter f = {0};
1943         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1944         int rc = LDAP_SUCCESS;
1945
1946         struct berval pdn = BER_BVNULL;
1947         dninfo dni = {0};
1948         int     retry = 1;
1949         int     freecsn = 1;
1950
1951         Debug( LDAP_DEBUG_SYNC,
1952                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1953                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1954
1955         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1956                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1957                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1958                 }
1959         }
1960
1961         if ( syncstate == LDAP_SYNC_PRESENT ) {
1962                 return 0;
1963         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1964                 if ( entry == NULL ) {
1965                         return 0;
1966                 }
1967         }
1968
1969         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1970         if ( syncstate != LDAP_SYNC_DELETE ) {
1971                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1972
1973                 if ( a == NULL ) {
1974                         /* add if missing */
1975                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1976                                 &syncUUID_strrep, syncUUID );
1977
1978                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1979                         /* replace only if necessary */
1980                         if ( a->a_nvals != a->a_vals ) {
1981                                 ber_memfree( a->a_nvals[0].bv_val );
1982                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1983                         }
1984                         ber_memfree( a->a_vals[0].bv_val );
1985                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1986                 }
1987         }
1988
1989         f.f_choice = LDAP_FILTER_EQUALITY;
1990         f.f_ava = &ava;
1991         ava.aa_desc = slap_schema.si_ad_entryUUID;
1992         ava.aa_value = *syncUUID;
1993
1994         if ( syncuuid_inserted ) {
1995                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1996                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1997         }
1998         op->ors_filter = &f;
1999
2000         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2001         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2002                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2003         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2004         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2005                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2006         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2007         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2008
2009         op->o_tag = LDAP_REQ_SEARCH;
2010         op->ors_scope = LDAP_SCOPE_SUBTREE;
2011         op->ors_deref = LDAP_DEREF_NEVER;
2012
2013         /* get the entry for this UUID */
2014         op->o_req_dn = si->si_base;
2015         op->o_req_ndn = si->si_base;
2016
2017         op->o_time = slap_get_time();
2018         op->ors_tlimit = SLAP_NO_LIMIT;
2019         op->ors_slimit = 1;
2020
2021         op->ors_attrs = slap_anlist_all_attributes;
2022         op->ors_attrsonly = 0;
2023
2024         /* set callback function */
2025         op->o_callback = &cb;
2026         cb.sc_response = dn_callback;
2027         cb.sc_private = &dni;
2028         dni.new_entry = entry;
2029         dni.modlist = modlist;
2030
2031         if ( limits_check( op, &rs_search ) == 0 ) {
2032                 rc = be->be_search( op, &rs_search );
2033                 Debug( LDAP_DEBUG_SYNC,
2034                                 "syncrepl_entry: %s be_search (%d)\n",
2035                                 si->si_ridtxt, rc, 0 );
2036         }
2037
2038         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2039                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2040         }
2041
2042         cb.sc_response = null_callback;
2043         cb.sc_private = si;
2044
2045         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2046                 Debug( LDAP_DEBUG_SYNC,
2047                                 "syncrepl_entry: %s %s\n",
2048                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2049         } else {
2050                 Debug( LDAP_DEBUG_SYNC,
2051                                 "syncrepl_entry: %s %s\n",
2052                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2053         }
2054
2055         assert( BER_BVISNULL( &op->o_csn ) );
2056         if ( syncCSN ) {
2057                 slap_queue_csn( op, syncCSN );
2058         }
2059
2060         slap_op_time( &op->o_time, &op->o_tincr );
2061         switch ( syncstate ) {
2062         case LDAP_SYNC_ADD:
2063         case LDAP_SYNC_MODIFY:
2064                 if ( BER_BVISNULL( &op->o_csn ))
2065                 {
2066
2067                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2068                         if ( a ) {
2069                                 /* FIXME: op->o_csn is assumed to be
2070                                  * on the thread's slab; this needs
2071                                  * to be cleared ASAP.
2072                                  * What happens if already present?
2073                                  */
2074                                 assert( BER_BVISNULL( &op->o_csn ) );
2075                                 op->o_csn = a->a_vals[0];
2076                                 freecsn = 0;
2077                         }
2078                 }
2079 retry_add:;
2080                 if ( BER_BVISNULL( &dni.dn ) ) {
2081
2082                         op->o_req_dn = entry->e_name;
2083                         op->o_req_ndn = entry->e_nname;
2084                         op->o_tag = LDAP_REQ_ADD;
2085                         op->ora_e = entry;
2086                         op->o_bd = si->si_wbe;
2087
2088                         rc = op->o_bd->be_add( op, &rs_add );
2089                         Debug( LDAP_DEBUG_SYNC,
2090                                         "syncrepl_entry: %s be_add (%d)\n",
2091                                         si->si_ridtxt, rc, 0 );
2092                         switch ( rs_add.sr_err ) {
2093                         case LDAP_SUCCESS:
2094                                 if ( op->ora_e == entry ) {
2095                                         be_entry_release_w( op, entry );
2096                                 }
2097                                 entry = NULL;
2098                                 break;
2099
2100                         case LDAP_REFERRAL:
2101                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2102                          * only if the suffix entry is not present */
2103                         case LDAP_NO_SUCH_OBJECT:
2104                                 rc = syncrepl_add_glue( op, entry );
2105                                 entry = NULL;
2106                                 break;
2107
2108                         /* if an entry was added via syncrepl_add_glue(),
2109                          * it likely has no entryUUID, so the previous
2110                          * be_search() doesn't find it.  In this case,
2111                          * give syncrepl a chance to modify it. Also
2112                          * allow for entries that were recreated with the
2113                          * same DN but a different entryUUID.
2114                          */
2115                         case LDAP_ALREADY_EXISTS:
2116                                 if ( retry ) {
2117                                         Operation       op2 = *op;
2118                                         SlapReply       rs2 = { 0 };
2119                                         slap_callback   cb2 = { 0 };
2120
2121                                         op2.o_bd = be;
2122                                         op2.o_tag = LDAP_REQ_SEARCH;
2123                                         op2.o_req_dn = entry->e_name;
2124                                         op2.o_req_ndn = entry->e_nname;
2125                                         op2.ors_scope = LDAP_SCOPE_BASE;
2126                                         op2.ors_deref = LDAP_DEREF_NEVER;
2127                                         op2.ors_attrs = slap_anlist_all_attributes;
2128                                         op2.ors_attrsonly = 0;
2129                                         op2.ors_limit = NULL;
2130                                         op2.ors_slimit = 1;
2131                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2132
2133                                         f.f_choice = LDAP_FILTER_PRESENT;
2134                                         f.f_desc = slap_schema.si_ad_objectClass;
2135                                         op2.ors_filter = &f;
2136                                         op2.ors_filterstr = generic_filterstr;
2137
2138                                         op2.o_callback = &cb2;
2139                                         cb2.sc_response = dn_callback;
2140                                         cb2.sc_private = &dni;
2141
2142                                         rc = be->be_search( &op2, &rs2 );
2143                                         if ( rc ) goto done;
2144
2145                                         retry = 0;
2146                                         slap_op_time( &op->o_time, &op->o_tincr );
2147                                         goto retry_add;
2148                                 }
2149                                 /* FALLTHRU */
2150
2151                         default:
2152                                 Debug( LDAP_DEBUG_ANY,
2153                                         "syncrepl_entry: %s be_add failed (%d)\n",
2154                                         si->si_ridtxt, rs_add.sr_err, 0 );
2155                                 break;
2156                         }
2157                         op->o_bd = be;
2158                         goto done;
2159                 }
2160                 /* FALLTHRU */
2161                 op->o_req_dn = dni.dn;
2162                 op->o_req_ndn = dni.ndn;
2163                 if ( dni.renamed ) {
2164                         struct berval noldp, newp, nnewp;
2165
2166                         op->o_tag = LDAP_REQ_MODRDN;
2167                         dnRdn( &entry->e_name, &op->orr_newrdn );
2168                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2169
2170                         dnParent( &dni.ndn, &noldp );
2171                         dnParent( &entry->e_nname, &nnewp );
2172                         if ( !dn_match( &noldp, &nnewp ) ) {
2173                                 dnParent( &entry->e_name, &newp );
2174                                 op->orr_newSup = &newp;
2175                                 op->orr_nnewSup = &nnewp;
2176                         } else {
2177                                 op->orr_newSup = NULL;
2178                                 op->orr_nnewSup = NULL;
2179                         }
2180                         op->orr_deleteoldrdn = dni.delOldRDN;
2181                         op->orr_modlist = NULL;
2182                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2183                                 goto done;
2184                         }
2185
2186                         /* RDNs must be NUL-terminated for back-ldap */
2187                         noldp = op->orr_newrdn;
2188                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2189                         noldp = op->orr_nnewrdn;
2190                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2191
2192                         /* Setup opattrs too */
2193                         {
2194                                 static AttributeDescription *nullattr = NULL;
2195                                 static AttributeDescription **const opattrs[] = {
2196                                         &slap_schema.si_ad_entryCSN,
2197                                         &slap_schema.si_ad_modifiersName,
2198                                         &slap_schema.si_ad_modifyTimestamp,
2199                                         &nullattr
2200                                 };
2201                                 AttributeDescription *opattr;
2202                                 Modifications *mod, **modtail, **ml;
2203                                 int i;
2204
2205                                 for ( mod = op->orr_modlist;
2206                                         mod->sml_next;
2207                                         mod = mod->sml_next )
2208                                         ;
2209                                 modtail = &mod->sml_next;
2210
2211                                 /* pull mod off incoming modlist, append to orr_modlist */
2212                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2213                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2214                                         {
2215                                                 if ( (*ml)->sml_desc == opattr ) {
2216                                                         mod = *ml;
2217                                                         *ml = mod->sml_next;
2218                                                         mod->sml_next = NULL;
2219                                                         *modtail = mod;
2220                                                         modtail = &mod->sml_next;
2221                                                         break;
2222                                                 }
2223                                         }
2224                                 }
2225                         }
2226                         op->o_bd = si->si_wbe;
2227                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2228                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2229                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2230
2231                         slap_mods_free( op->orr_modlist, 1 );
2232                         Debug( LDAP_DEBUG_SYNC,
2233                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2234                                         si->si_ridtxt, rc, 0 );
2235                         op->o_bd = be;
2236                         goto done;
2237                 }
2238                 if ( dni.mods ) {
2239                         op->o_tag = LDAP_REQ_MODIFY;
2240                         op->orm_modlist = dni.mods;
2241                         op->orm_no_opattrs = 1;
2242                         op->o_bd = si->si_wbe;
2243
2244                         rc = op->o_bd->be_modify( op, &rs_modify );
2245                         slap_mods_free( op->orm_modlist, 1 );
2246                         op->orm_no_opattrs = 0;
2247                         Debug( LDAP_DEBUG_SYNC,
2248                                         "syncrepl_entry: %s be_modify (%d)\n",
2249                                         si->si_ridtxt, rc, 0 );
2250                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2251                                 Debug( LDAP_DEBUG_ANY,
2252                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2253                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2254                         }
2255                         op->o_bd = be;
2256                 } else {
2257                         Debug( LDAP_DEBUG_SYNC,
2258                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2259                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2260                 }
2261                 goto done;
2262         case LDAP_SYNC_DELETE :
2263                 if ( !BER_BVISNULL( &dni.dn ) ) {
2264                         op->o_req_dn = dni.dn;
2265                         op->o_req_ndn = dni.ndn;
2266                         op->o_tag = LDAP_REQ_DELETE;
2267                         op->o_bd = si->si_wbe;
2268                         rc = op->o_bd->be_delete( op, &rs_delete );
2269                         Debug( LDAP_DEBUG_SYNC,
2270                                         "syncrepl_entry: %s be_delete (%d)\n",
2271                                         si->si_ridtxt, rc, 0 );
2272
2273                         while ( rs_delete.sr_err == LDAP_SUCCESS
2274                                 && op->o_delete_glue_parent ) {
2275                                 op->o_delete_glue_parent = 0;
2276                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2277                                         slap_callback cb = { NULL };
2278                                         cb.sc_response = slap_null_cb;
2279                                         dnParent( &op->o_req_ndn, &pdn );
2280                                         op->o_req_dn = pdn;
2281                                         op->o_req_ndn = pdn;
2282                                         op->o_callback = &cb;
2283                                         op->o_bd->be_delete( op, &rs_delete );
2284                                 } else {
2285                                         break;
2286                                 }
2287                         }
2288                         op->o_bd = be;
2289                 }
2290                 goto done;
2291
2292         default :
2293                 Debug( LDAP_DEBUG_ANY,
2294                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2295                 goto done;
2296         }
2297
2298 done:
2299         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2300                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2301                 BER_BVZERO( &syncUUID_strrep );
2302         }
2303         if ( !BER_BVISNULL( &dni.ndn ) ) {
2304                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2305         }
2306         if ( !BER_BVISNULL( &dni.dn ) ) {
2307                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2308         }
2309         if ( entry ) {
2310                 entry_free( entry );
2311         }
2312         if ( syncCSN ) {
2313                 slap_graduate_commit_csn( op );
2314         }
2315         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2316                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2317         }
2318         BER_BVZERO( &op->o_csn );
2319         return rc;
2320 }
2321
2322 static struct berval gcbva[] = {
2323         BER_BVC("top"),
2324         BER_BVC("glue"),
2325         BER_BVNULL
2326 };
2327
2328 #define NP_DELETE_ONE   2
2329
2330 static void
2331 syncrepl_del_nonpresent(
2332         Operation *op,
2333         syncinfo_t *si,
2334         BerVarray uuids,
2335         struct berval *cookiecsn )
2336 {
2337         Backend* be = op->o_bd;
2338         slap_callback   cb = { NULL };
2339         SlapReply       rs_search = {REP_RESULT};
2340         SlapReply       rs_delete = {REP_RESULT};
2341         SlapReply       rs_modify = {REP_RESULT};
2342         struct nonpresent_entry *np_list, *np_prev;
2343         int rc;
2344         AttributeName   an[2];
2345
2346         struct berval pdn = BER_BVNULL;
2347         struct berval csn;
2348
2349         op->o_req_dn = si->si_base;
2350         op->o_req_ndn = si->si_base;
2351
2352         cb.sc_response = nonpresent_callback;
2353         cb.sc_private = si;
2354
2355         op->o_callback = &cb;
2356         op->o_tag = LDAP_REQ_SEARCH;
2357         op->ors_scope = si->si_scope;
2358         op->ors_deref = LDAP_DEREF_NEVER;
2359         op->o_time = slap_get_time();
2360         op->ors_tlimit = SLAP_NO_LIMIT;
2361
2362
2363         if ( uuids ) {
2364                 Filter uf;
2365                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2366                 int i;
2367
2368                 op->ors_attrsonly = 1;
2369                 op->ors_attrs = slap_anlist_no_attrs;
2370                 op->ors_limit = NULL;
2371                 op->ors_filter = &uf;
2372
2373                 uf.f_ava = &eq;
2374                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2375                 uf.f_next = NULL;
2376                 uf.f_choice = LDAP_FILTER_EQUALITY;
2377                 si->si_refreshDelete |= NP_DELETE_ONE;
2378
2379                 for (i=0; uuids[i].bv_val; i++) {
2380                         op->ors_slimit = 1;
2381                         uf.f_av_value = uuids[i];
2382                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2383                         rc = be->be_search( op, &rs_search );
2384                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2385                 }
2386                 si->si_refreshDelete ^= NP_DELETE_ONE;
2387         } else {
2388                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2389                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2390                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2391                 op->ors_attrs = an;
2392                 op->ors_slimit = SLAP_NO_LIMIT;
2393                 op->ors_attrsonly = 0;
2394                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2395                 op->ors_filterstr = si->si_filterstr;
2396                 op->o_nocaching = 1;
2397
2398                 if ( limits_check( op, &rs_search ) == 0 ) {
2399                         rc = be->be_search( op, &rs_search );
2400                 }
2401                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2402         }
2403
2404         op->o_nocaching = 0;
2405
2406         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2407
2408                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2409                         csn = *cookiecsn;
2410                 } else {
2411                         csn = si->si_syncCookie.ctxcsn[0];
2412                 }
2413
2414                 op->o_bd = si->si_wbe;
2415                 slap_queue_csn( op, &csn );
2416
2417                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2418                 while ( np_list != NULL ) {
2419                         LDAP_LIST_REMOVE( np_list, npe_link );
2420                         np_prev = np_list;
2421                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2422                         op->o_tag = LDAP_REQ_DELETE;
2423                         op->o_callback = &cb;
2424                         cb.sc_response = null_callback;
2425                         cb.sc_private = si;
2426                         op->o_req_dn = *np_prev->npe_name;
2427                         op->o_req_ndn = *np_prev->npe_nname;
2428                         rc = op->o_bd->be_delete( op, &rs_delete );
2429                         Debug( LDAP_DEBUG_SYNC,
2430                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2431                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2432
2433                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2434                                 Modifications mod1, mod2;
2435                                 mod1.sml_op = LDAP_MOD_REPLACE;
2436                                 mod1.sml_flags = 0;
2437                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2438                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2439                                 mod1.sml_numvals = 2;
2440                                 mod1.sml_values = &gcbva[0];
2441                                 mod1.sml_nvalues = NULL;
2442                                 mod1.sml_next = &mod2;
2443
2444                                 mod2.sml_op = LDAP_MOD_REPLACE;
2445                                 mod2.sml_flags = 0;
2446                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2447                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2448                                 mod2.sml_numvals = 1;
2449                                 mod2.sml_values = &gcbva[1];
2450                                 mod2.sml_nvalues = NULL;
2451                                 mod2.sml_next = NULL;
2452
2453                                 op->o_tag = LDAP_REQ_MODIFY;
2454                                 op->orm_modlist = &mod1;
2455
2456                                 rc = op->o_bd->be_modify( op, &rs_modify );
2457                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2458                         }
2459
2460                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2461                                         op->o_delete_glue_parent ) {
2462                                 op->o_delete_glue_parent = 0;
2463                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2464                                         slap_callback cb = { NULL };
2465                                         cb.sc_response = slap_null_cb;
2466                                         dnParent( &op->o_req_ndn, &pdn );
2467                                         op->o_req_dn = pdn;
2468                                         op->o_req_ndn = pdn;
2469                                         op->o_callback = &cb;
2470                                         /* give it a root privil ? */
2471                                         op->o_bd->be_delete( op, &rs_delete );
2472                                 } else {
2473                                         break;
2474                                 }
2475                         }
2476
2477                         op->o_delete_glue_parent = 0;
2478
2479                         ber_bvfree( np_prev->npe_name );
2480                         ber_bvfree( np_prev->npe_nname );
2481                         ch_free( np_prev );
2482
2483                         if ( slapd_shutdown ) {
2484                                 break;
2485                         }
2486                 }
2487
2488                 slap_graduate_commit_csn( op );
2489                 op->o_bd = be;
2490
2491                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2492                 BER_BVZERO( &op->o_csn );
2493         }
2494
2495         return;
2496 }
2497
2498 int
2499 syncrepl_add_glue(
2500         Operation* op,
2501         Entry *e )
2502 {
2503         Backend *be = op->o_bd;
2504         slap_callback cb = { NULL };
2505         Attribute       *a;
2506         int     rc;
2507         int suffrdns;
2508         int i;
2509         struct berval dn = BER_BVNULL;
2510         struct berval ndn = BER_BVNULL;
2511         Entry   *glue;
2512         SlapReply       rs_add = {REP_RESULT};
2513         struct berval   ptr, nptr;
2514         char            *comma;
2515
2516         op->o_tag = LDAP_REQ_ADD;
2517         op->o_callback = &cb;
2518         cb.sc_response = null_callback;
2519         cb.sc_private = NULL;
2520
2521         dn = e->e_name;
2522         ndn = e->e_nname;
2523
2524         /* count RDNs in suffix */
2525         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2526                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2527                         comma++;
2528                         ptr.bv_len -= comma - ptr.bv_val;
2529                         ptr.bv_val = comma;
2530                         i++;
2531                 }
2532                 suffrdns = i;
2533         } else {
2534                 /* suffix is "" */
2535                 suffrdns = 0;
2536         }
2537
2538         /* Start with BE suffix */
2539         ptr = dn;
2540         for ( i = 0; i < suffrdns; i++ ) {
2541                 comma = ber_bvrchr( &ptr, ',' );
2542                 if ( comma != NULL ) {
2543                         ptr.bv_len = comma - ptr.bv_val;
2544                 } else {
2545                         ptr.bv_len = 0;
2546                         break;
2547                 }
2548         }
2549
2550         if ( !BER_BVISEMPTY( &ptr ) ) {
2551                 dn.bv_len -= ptr.bv_len + 1;
2552                 dn.bv_val += ptr.bv_len + 1;
2553         }
2554
2555         /* the normalizedDNs are always the same length, no counting
2556          * required.
2557          */
2558         nptr = ndn;
2559         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2560                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2561                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2562
2563                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2564
2565         } else {
2566                 nptr.bv_len = 0;
2567         }
2568
2569         while ( ndn.bv_val > e->e_nname.bv_val ) {
2570                 glue = entry_alloc();
2571                 ber_dupbv( &glue->e_name, &dn );
2572                 ber_dupbv( &glue->e_nname, &ndn );
2573
2574                 a = attr_alloc( slap_schema.si_ad_objectClass );
2575
2576                 a->a_numvals = 2;
2577                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2578                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2579                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2580                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2581
2582                 a->a_nvals = a->a_vals;
2583
2584                 a->a_next = glue->e_attrs;
2585                 glue->e_attrs = a;
2586
2587                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2588
2589                 a->a_numvals = 1;
2590                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2591                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2592                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2593
2594                 a->a_nvals = a->a_vals;
2595
2596                 a->a_next = glue->e_attrs;
2597                 glue->e_attrs = a;
2598
2599                 op->o_req_dn = glue->e_name;
2600                 op->o_req_ndn = glue->e_nname;
2601                 op->ora_e = glue;
2602                 rc = be->be_add ( op, &rs_add );
2603                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2604                         if ( op->ora_e == glue )
2605                                 be_entry_release_w( op, glue );
2606                 } else {
2607                 /* incl. ALREADY EXIST */
2608                         entry_free( glue );
2609                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2610                                 entry_free( e );
2611                                 return rc;
2612                         }
2613                 }
2614
2615                 /* Move to next child */
2616                 comma = ber_bvrchr( &ptr, ',' );
2617                 if ( comma == NULL ) {
2618                         break;
2619                 }
2620                 ptr.bv_len = comma - ptr.bv_val;
2621
2622                 dn.bv_val = ++comma;
2623                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2624
2625                 comma = ber_bvrchr( &nptr, ',' );
2626                 assert( comma != NULL );
2627                 nptr.bv_len = comma - nptr.bv_val;
2628
2629                 ndn.bv_val = ++comma;
2630                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2631         }
2632
2633         op->o_req_dn = e->e_name;
2634         op->o_req_ndn = e->e_nname;
2635         op->ora_e = e;
2636         rc = be->be_add ( op, &rs_add );
2637         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2638                 if ( op->ora_e == e )
2639                         be_entry_release_w( op, e );
2640         } else {
2641                 entry_free( e );
2642         }
2643
2644         return rc;
2645 }
2646
2647 static int
2648 syncrepl_updateCookie(
2649         syncinfo_t *si,
2650         Operation *op,
2651         struct berval *pdn,
2652         struct sync_cookie *syncCookie )
2653 {
2654         Backend *be = op->o_bd;
2655         Modifications mod;
2656         struct berval first = BER_BVNULL;
2657
2658         int rc, i, j, len;
2659
2660         slap_callback cb = { NULL };
2661         SlapReply       rs_modify = {REP_RESULT};
2662
2663         mod.sml_op = LDAP_MOD_REPLACE;
2664         mod.sml_desc = slap_schema.si_ad_contextCSN;
2665         mod.sml_type = mod.sml_desc->ad_cname;
2666         mod.sml_nvalues = NULL;
2667         mod.sml_next = NULL;
2668
2669         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2670
2671         /* clone the cookieState CSNs so we can Replace the whole thing */
2672         mod.sml_numvals = si->si_cookieState->cs_num;
2673         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2674         for ( i=0; i<mod.sml_numvals; i++ )
2675                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2676         BER_BVZERO( &mod.sml_values[i] );
2677
2678         /* find any CSNs in the syncCookie that are newer than the cookieState */
2679         for ( i=0; i<syncCookie->numcsns; i++ ) {
2680                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2681                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2682                                 continue;
2683                         len = syncCookie->ctxcsn[i].bv_len;
2684                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2685                                 len = si->si_cookieState->cs_vals[j].bv_len;
2686                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2687                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2688                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2689                                 if ( BER_BVISNULL( &first ))
2690                                         first = syncCookie->ctxcsn[i];
2691                         }
2692                         break;
2693                 }
2694                 /* there was no match for this SID, it's a new CSN */
2695                 if ( j == si->si_cookieState->cs_num ) {
2696                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2697                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2698                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2699                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2700                         if ( BER_BVISNULL( &first ))
2701                                 first = syncCookie->ctxcsn[i];
2702                 }
2703         }
2704         /* Should never happen, ITS#5065 */
2705         if ( BER_BVISNULL( &first )) {
2706                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2707                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2708                 return 0;
2709         }
2710         op->o_bd = si->si_wbe;
2711         slap_queue_csn( op, &first );
2712
2713         op->o_tag = LDAP_REQ_MODIFY;
2714
2715         cb.sc_response = null_callback;
2716         cb.sc_private = si;
2717
2718         op->o_callback = &cb;
2719         op->o_req_dn = op->o_bd->be_suffix[0];
2720         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2721
2722         /* update contextCSN */
2723         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2724
2725         op->orm_modlist = &mod;
2726         op->orm_no_opattrs = 1;
2727         rc = op->o_bd->be_modify( op, &rs_modify );
2728         op->orm_no_opattrs = 0;
2729         op->o_msgid = 0;
2730
2731         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2732                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2733                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2734                 /* If we replaced any old values */
2735                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2736                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2737                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2738                                                 &mod.sml_values[i] );
2739                 }
2740                 /* Handle any added values */
2741                 if ( i < mod.sml_numvals ) {
2742                         si->si_cookieState->cs_num = mod.sml_numvals;
2743                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2744                         free( si->si_cookieState->cs_sids );
2745                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2746                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2747                 }
2748
2749                 si->si_cookieState->cs_age++;
2750                 si->si_cookieAge = si->si_cookieState->cs_age;
2751         } else {
2752                 Debug( LDAP_DEBUG_ANY,
2753                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2754                         si->si_ridtxt, rs_modify.sr_err, 0 );
2755         }
2756         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2757
2758         op->o_bd = be;
2759         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2760         BER_BVZERO( &op->o_csn );
2761         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2762         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2763
2764         return rc;
2765 }
2766
2767 static void
2768 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2769         Modifications ***mret, Modifications ***mcur )
2770 {
2771         int i, j;
2772         Modifications *mod, **modtail;
2773
2774         modtail = *mret;
2775
2776         if ( old ) {
2777                 int n, o, nn, no;
2778                 struct berval **adds, **dels;
2779                 /* count old and new */
2780                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2781                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2782
2783                 /* there MUST be both old and new values */
2784                 assert( o != 0 );
2785                 assert( n != 0 );
2786                 j = 0;
2787
2788                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2789                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2790
2791                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2792                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2793
2794                 nn = n; no = o;
2795
2796                 for ( i=0; i<o; i++ ) {
2797                         for ( j=0; j<n; j++ ) {
2798                                 if ( !adds[j] )
2799                                         continue;
2800                                 if ( bvmatch( dels[i], adds[j] ) ) {
2801                                         no--;
2802                                         nn--;
2803                                         adds[j] = NULL;
2804                                         dels[i] = NULL;
2805                                         break;
2806                                 }
2807                         }
2808                 }
2809
2810                 i = j;
2811                 /* all old values were deleted, just use the replace op */
2812                 if ( no == o ) {
2813                         i = j-1;
2814                 } else if ( no ) {
2815                 /* delete some values */
2816                         mod = ch_malloc( sizeof( Modifications ) );
2817                         mod->sml_op = LDAP_MOD_DELETE;
2818                         mod->sml_flags = 0;
2819                         mod->sml_desc = old->a_desc;
2820                         mod->sml_type = mod->sml_desc->ad_cname;
2821                         mod->sml_numvals = no;
2822                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2823                         if ( old->a_vals != old->a_nvals ) {
2824                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2825                         } else {
2826                                 mod->sml_nvalues = NULL;
2827                         }
2828                         j = 0;
2829                         for ( i = 0; i < o; i++ ) {
2830                                 if ( !dels[i] ) continue;
2831                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2832                                 if ( mod->sml_nvalues ) {
2833                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2834                                 }
2835                                 j++;
2836                         }
2837                         BER_BVZERO( &mod->sml_values[j] );
2838                         if ( mod->sml_nvalues ) {
2839                                 BER_BVZERO( &mod->sml_nvalues[j] );
2840                         }
2841                         *modtail = mod;
2842                         modtail = &mod->sml_next;
2843                         i = j;
2844                 }
2845                 op->o_tmpfree( dels, op->o_tmpmemctx );
2846                 /* some values were added */
2847                 if ( nn && no < o ) {
2848                         mod = ch_malloc( sizeof( Modifications ) );
2849                         mod->sml_op = LDAP_MOD_ADD;
2850                         mod->sml_flags = 0;
2851                         mod->sml_desc = old->a_desc;
2852                         mod->sml_type = mod->sml_desc->ad_cname;
2853                         mod->sml_numvals = nn;
2854                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2855                         if ( old->a_vals != old->a_nvals ) {
2856                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2857                         } else {
2858                                 mod->sml_nvalues = NULL;
2859                         }
2860                         j = 0;
2861                         for ( i = 0; i < n; i++ ) {
2862                                 if ( !adds[i] ) continue;
2863                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2864                                 if ( mod->sml_nvalues ) {
2865                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2866                                 }
2867                                 j++;
2868                         }
2869                         BER_BVZERO( &mod->sml_values[j] );
2870                         if ( mod->sml_nvalues ) {
2871                                 BER_BVZERO( &mod->sml_nvalues[j] );
2872                         }
2873                         *modtail = mod;
2874                         modtail = &mod->sml_next;
2875                         i = j;
2876                 }
2877                 op->o_tmpfree( adds, op->o_tmpmemctx );
2878         } else {
2879                 /* new attr, just use the new mod */
2880                 i = 0;
2881                 j = 1;
2882         }
2883         /* advance to next element */
2884         mod = **mcur;
2885         if ( mod ) {
2886                 if ( i != j ) {
2887                         **mcur = mod->sml_next;
2888                         *modtail = mod;
2889                         modtail = &mod->sml_next;
2890                 } else {
2891                         *mcur = &mod->sml_next;
2892                 }
2893         }
2894         *mret = modtail;
2895 }
2896
2897 static int
2898 dn_callback(
2899         Operation*      op,
2900         SlapReply*      rs )
2901 {
2902         dninfo *dni = op->o_callback->sc_private;
2903
2904         if ( rs->sr_type == REP_SEARCH ) {
2905                 if ( !BER_BVISNULL( &dni->dn ) ) {
2906                         Debug( LDAP_DEBUG_ANY,
2907                                 "dn_callback : consistency error - "
2908                                 "entryUUID is not unique\n", 0, 0, 0 );
2909                 } else {
2910                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2911                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2912                         /* If there is a new entry, see if it differs from the old.
2913                          * We compare the non-normalized values so that cosmetic changes
2914                          * in the provider are always propagated.
2915                          */
2916                         if ( dni->new_entry ) {
2917                                 Modifications **modtail, **ml;
2918                                 Attribute *old, *new;
2919                                 int is_ctx;
2920
2921                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2922                                         &op->o_bd->be_nsuffix[0] );
2923
2924                                 /* Did the DN change?
2925                                  */
2926                                 if ( !dn_match( &rs->sr_entry->e_name,
2927                                                 &dni->new_entry->e_name ) )
2928                                 {
2929                                         struct berval oldRDN, oldVal;
2930                                         AttributeDescription *ad = NULL;
2931                                         Attribute *a;
2932
2933                                         dni->renamed = 1;
2934                                         /* See if the oldRDN was deleted */
2935                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2936                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2937                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2938                                                 oldRDN.bv_val );
2939                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2940                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2941                                         a = attr_find( dni->new_entry->e_attrs, ad );
2942                                         if ( !a || attr_valfind( a,
2943                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2944                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2945                                                 SLAP_MR_VALUE_OF_SYNTAX,
2946                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
2947                                         {
2948                                                 dni->delOldRDN = 1;
2949                                         }
2950                                         /* OK, this was just a modDN, we're done */
2951                                         return LDAP_SUCCESS;
2952                                 }
2953
2954                                 modtail = &dni->mods;
2955                                 ml = dni->modlist;
2956
2957                                 /* Make sure new entry is actually newer than old entry */
2958                                 old = attr_find( rs->sr_entry->e_attrs,
2959                                         slap_schema.si_ad_entryCSN );
2960                                 new = attr_find( dni->new_entry->e_attrs,
2961                                         slap_schema.si_ad_entryCSN );
2962                                 if ( new && old ) {
2963                                         int rc, len = old->a_vals[0].bv_len;
2964                                         if ( len > new->a_vals[0].bv_len )
2965                                                 len = new->a_vals[0].bv_len;
2966                                         rc = memcmp( old->a_vals[0].bv_val,
2967                                                 new->a_vals[0].bv_val, len );
2968                                         if ( rc > 0 ) {
2969                                                 Debug( LDAP_DEBUG_SYNC,
2970                                                         "dn_callback : new entry is older than ours "
2971                                                         "%s ours %s, new %s\n",
2972                                                         rs->sr_entry->e_name.bv_val,
2973                                                         old->a_vals[0].bv_val,
2974                                                         new->a_vals[0].bv_val );
2975                                                 return LDAP_SUCCESS;
2976                                         } else if ( rc == 0 ) {
2977                                                 Debug( LDAP_DEBUG_SYNC,
2978                                                         "dn_callback : entries have identical CSN "
2979                                                         "%s %s\n",
2980                                                         rs->sr_entry->e_name.bv_val,
2981                                                         old->a_vals[0].bv_val, 0 );
2982                                                 return LDAP_SUCCESS;
2983                                         }
2984                                 }
2985
2986                                 /* We assume that attributes are saved in the same order
2987                                  * in the remote and local databases. So if we walk through
2988                                  * the attributeDescriptions one by one they should match in
2989                                  * lock step. If not, look for an add or delete.
2990                                  */
2991                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2992                                                 old && new; )
2993                                 {
2994                                         /* If we've seen this before, use its mod now */
2995                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2996                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2997                                                 new = new->a_next;
2998                                                 continue;
2999                                         }
3000                                         /* Skip contextCSN */
3001                                         if ( is_ctx && old->a_desc ==
3002                                                 slap_schema.si_ad_contextCSN ) {
3003                                                 old = old->a_next;
3004                                                 continue;
3005                                         }
3006
3007                                         if ( old->a_desc != new->a_desc ) {
3008                                                 Modifications *mod;
3009                                                 Attribute *tmp;
3010
3011                                                 /* If it's just been re-added later,
3012                                                  * remember that we've seen it.
3013                                                  */
3014                                                 tmp = attr_find( new, old->a_desc );
3015                                                 if ( tmp ) {
3016                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3017                                                 } else {
3018                                                         /* If it's a new attribute, pull it in.
3019                                                          */
3020                                                         tmp = attr_find( old, new->a_desc );
3021                                                         if ( !tmp ) {
3022                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3023                                                                 new = new->a_next;
3024                                                                 continue;
3025                                                         }
3026                                                         /* Delete old attr */
3027                                                         mod = ch_malloc( sizeof( Modifications ) );
3028                                                         mod->sml_op = LDAP_MOD_DELETE;
3029                                                         mod->sml_flags = 0;
3030                                                         mod->sml_desc = old->a_desc;
3031                                                         mod->sml_type = mod->sml_desc->ad_cname;
3032                                                         mod->sml_numvals = 0;
3033                                                         mod->sml_values = NULL;
3034                                                         mod->sml_nvalues = NULL;
3035                                                         *modtail = mod;
3036                                                         modtail = &mod->sml_next;
3037                                                 }
3038                                                 old = old->a_next;
3039                                                 continue;
3040                                         }
3041                                         /* kludge - always update modifiersName so that it
3042                                          * stays co-located with the other mod opattrs. But only
3043                                          * if we know there are other valid mods.
3044                                          */
3045                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3046                                                 dni->mods )
3047                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3048                                         else
3049                                                 attr_cmp( op, old, new, &modtail, &ml );
3050                                         new = new->a_next;
3051                                         old = old->a_next;
3052                                 }
3053                                 *modtail = *ml;
3054                                 *ml = NULL;
3055                         }
3056                 }
3057         } else if ( rs->sr_type == REP_RESULT ) {
3058                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3059                         Debug( LDAP_DEBUG_ANY,
3060                                 "dn_callback : consistency error - "
3061                                 "entryUUID is not unique\n", 0, 0, 0 );
3062                 }
3063         }
3064
3065         return LDAP_SUCCESS;
3066 }
3067
3068 static int
3069 nonpresent_callback(
3070         Operation*      op,
3071         SlapReply*      rs )
3072 {
3073         syncinfo_t *si = op->o_callback->sc_private;
3074         Attribute *a;
3075         int count = 0;
3076         struct berval* present_uuid = NULL;
3077         struct nonpresent_entry *np_entry;
3078
3079         if ( rs->sr_type == REP_RESULT ) {
3080                 count = avl_free( si->si_presentlist, ch_free );
3081                 si->si_presentlist = NULL;
3082
3083         } else if ( rs->sr_type == REP_SEARCH ) {
3084                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3085                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3086
3087                         if ( a ) {
3088                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3089                                         syncuuid_cmp );
3090                         }
3091
3092                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3093                                 char buf[sizeof("rid=999 not")];
3094
3095                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3096                                         present_uuid ? "got" : "not" );
3097
3098                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3099                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3100                         }
3101
3102                         if ( a == NULL ) return 0;
3103                 }
3104
3105                 if ( present_uuid == NULL ) {
3106                         np_entry = (struct nonpresent_entry *)
3107                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3108                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3109                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3110                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3111
3112                 } else {
3113                         avl_delete( &si->si_presentlist,
3114                                 &a->a_nvals[0], syncuuid_cmp );
3115                         ch_free( present_uuid );
3116                 }
3117         }
3118         return LDAP_SUCCESS;
3119 }
3120
3121 static int
3122 null_callback(
3123         Operation*      op,
3124         SlapReply*      rs )
3125 {
3126         if ( rs->sr_err != LDAP_SUCCESS &&
3127                 rs->sr_err != LDAP_REFERRAL &&
3128                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3129                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3130                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3131         {
3132                 Debug( LDAP_DEBUG_ANY,
3133                         "null_callback : error code 0x%x\n",
3134                         rs->sr_err, 0, 0 );
3135         }
3136         return LDAP_SUCCESS;
3137 }
3138
3139 static struct berval *
3140 slap_uuidstr_from_normalized(
3141         struct berval* uuidstr,
3142         struct berval* normalized,
3143         void *ctx )
3144 {
3145 #if 0
3146         struct berval *new;
3147         unsigned char nibble;
3148         int i, d = 0;
3149
3150         if ( normalized == NULL ) return NULL;
3151         if ( normalized->bv_len != 16 ) return NULL;
3152
3153         if ( uuidstr ) {
3154                 new = uuidstr;
3155         } else {
3156                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3157                 if ( new == NULL ) {
3158                         return NULL;
3159                 }
3160         }
3161
3162         new->bv_len = 36;
3163
3164         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3165                 if ( new != uuidstr ) {
3166                         slap_sl_free( new, ctx );
3167                 }
3168                 return NULL;
3169         }
3170
3171         for ( i = 0; i < 16; i++ ) {
3172                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3173                         new->bv_val[(i<<1)+d] = '-';
3174                         d += 1;
3175                 }
3176
3177                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3178                 if ( nibble < 10 ) {
3179                         new->bv_val[(i<<1)+d] = nibble + '0';
3180                 } else {
3181                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3182                 }
3183
3184                 nibble = (normalized->bv_val[i]) & 0xF;
3185                 if ( nibble < 10 ) {
3186                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3187                 } else {
3188                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3189                 }
3190         }
3191
3192         new->bv_val[new->bv_len] = '\0';
3193         return new;
3194 #endif
3195
3196         struct berval   *new;
3197         int             rc = 0;
3198
3199         if ( normalized == NULL ) return NULL;
3200         if ( normalized->bv_len != 16 ) return NULL;
3201
3202         if ( uuidstr ) {
3203                 new = uuidstr;
3204
3205         } else {
3206                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3207                 if ( new == NULL ) {
3208                         return NULL;
3209                 }
3210         }
3211
3212         new->bv_len = 36;
3213
3214         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3215                 rc = 1;
3216                 goto done;
3217         }
3218
3219         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3220                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3221
3222 done:;
3223         if ( rc == -1 ) {
3224                 if ( new != NULL ) {
3225                         if ( new->bv_val != NULL ) {
3226                                 slap_sl_free( new->bv_val, ctx );
3227                         }
3228
3229                         if ( new != uuidstr ) {
3230                                 slap_sl_free( new, ctx );
3231                         }
3232                 }
3233                 new = NULL;
3234
3235         } else {
3236                 new->bv_len = rc;
3237         }
3238
3239         return new;
3240 }
3241
3242 static int
3243 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3244 {
3245         const struct berval *uuid1 = v_uuid1;
3246         const struct berval *uuid2 = v_uuid2;
3247         int rc = uuid1->bv_len - uuid2->bv_len;
3248         if ( rc ) return rc;
3249         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3250 }
3251
3252 void
3253 syncinfo_free( syncinfo_t *sie, int free_all )
3254 {
3255         syncinfo_t *si_next;
3256
3257         if ( free_all && sie->si_cookieState ) {
3258                 ch_free( sie->si_cookieState->cs_sids );
3259                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3260                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3261                 ch_free( sie->si_cookieState );
3262         }
3263         do {
3264                 si_next = sie->si_next;
3265
3266                 if ( sie->si_ld ) {
3267                         if ( sie->si_conn ) {
3268                                 connection_client_stop( sie->si_conn );
3269                                 sie->si_conn = NULL;
3270                         }
3271                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3272                 }
3273
3274                 /* re-fetch it, in case it was already removed */
3275                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3276                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3277                 if ( sie->si_re ) {
3278                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3279                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3280                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3281                 }
3282
3283                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3284                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3285
3286                 bindconf_free( &sie->si_bindconf );
3287
3288                 if ( sie->si_filterstr.bv_val ) {
3289                         ch_free( sie->si_filterstr.bv_val );
3290                 }
3291                 if ( sie->si_logfilterstr.bv_val ) {
3292                         ch_free( sie->si_logfilterstr.bv_val );
3293                 }
3294                 if ( sie->si_base.bv_val ) {
3295                         ch_free( sie->si_base.bv_val );
3296                 }
3297                 if ( sie->si_logbase.bv_val ) {
3298                         ch_free( sie->si_logbase.bv_val );
3299                 }
3300                 if ( sie->si_attrs ) {
3301                         int i = 0;
3302                         while ( sie->si_attrs[i] != NULL ) {
3303                                 ch_free( sie->si_attrs[i] );
3304                                 i++;
3305                         }
3306                         ch_free( sie->si_attrs );
3307                 }
3308                 if ( sie->si_exattrs ) {
3309                         int i = 0;
3310                         while ( sie->si_exattrs[i] != NULL ) {
3311                                 ch_free( sie->si_exattrs[i] );
3312                                 i++;
3313                         }
3314                         ch_free( sie->si_exattrs );
3315                 }
3316                 if ( sie->si_anlist ) {
3317                         int i = 0;
3318                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3319                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3320                                 i++;
3321                         }
3322                         ch_free( sie->si_anlist );
3323                 }
3324                 if ( sie->si_exanlist ) {
3325                         int i = 0;
3326                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3327                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3328                                 i++;
3329                         }
3330                         ch_free( sie->si_exanlist );
3331                 }
3332                 if ( sie->si_retryinterval ) {
3333                         ch_free( sie->si_retryinterval );
3334                 }
3335                 if ( sie->si_retrynum ) {
3336                         ch_free( sie->si_retrynum );
3337                 }
3338                 if ( sie->si_retrynum_init ) {
3339                         ch_free( sie->si_retrynum_init );
3340                 }
3341                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3342                 if ( sie->si_presentlist ) {
3343                     avl_free( sie->si_presentlist, ch_free );
3344                 }
3345                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3346                         struct nonpresent_entry* npe;
3347                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3348                         LDAP_LIST_REMOVE( npe, npe_link );
3349                         if ( npe->npe_name ) {
3350                                 if ( npe->npe_name->bv_val ) {
3351                                         ch_free( npe->npe_name->bv_val );
3352                                 }
3353                                 ch_free( npe->npe_name );
3354                         }
3355                         if ( npe->npe_nname ) {
3356                                 if ( npe->npe_nname->bv_val ) {
3357                                         ch_free( npe->npe_nname->bv_val );
3358                                 }
3359                                 ch_free( npe->npe_nname );
3360                         }
3361                         ch_free( npe );
3362                 }
3363                 ch_free( sie );
3364                 sie = si_next;
3365         } while ( free_all && si_next );
3366 }
3367
3368
3369
3370 /* NOTE: used & documented in slapd.conf(5) */
3371 #define IDSTR                   "rid"
3372 #define PROVIDERSTR             "provider"
3373 #define SCHEMASTR               "schemachecking"
3374 #define FILTERSTR               "filter"
3375 #define SEARCHBASESTR           "searchbase"
3376 #define SCOPESTR                "scope"
3377 #define ATTRSONLYSTR            "attrsonly"
3378 #define ATTRSSTR                "attrs"
3379 #define TYPESTR                 "type"
3380 #define INTERVALSTR             "interval"
3381 #define RETRYSTR                "retry"
3382 #define SLIMITSTR               "sizelimit"
3383 #define TLIMITSTR               "timelimit"
3384 #define SYNCDATASTR             "syncdata"
3385 #define LOGBASESTR              "logbase"
3386 #define LOGFILTERSTR    "logfilter"
3387
3388 /* FIXME: undocumented */
3389 #define EXATTRSSTR              "exattrs"
3390 #define MANAGEDSAITSTR          "manageDSAit"
3391
3392 /* mandatory */
3393 #define GOT_ID                  0x0001
3394 #define GOT_PROVIDER    0x0002
3395 #define GOT_BASE                0x0004
3396
3397 /* check */
3398 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3399
3400 static struct {
3401         struct berval key;
3402         int val;
3403 } scopes[] = {
3404         { BER_BVC("base"), LDAP_SCOPE_BASE },
3405         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3406         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3407         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3408         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3409         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3410         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3411         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3412         { BER_BVNULL, 0 }
3413 };
3414
3415 static slap_verbmasks datamodes[] = {
3416         { BER_BVC("default"), SYNCDATA_DEFAULT },
3417         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3418         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3419         { BER_BVNULL, 0 }
3420 };
3421
3422 static int
3423 parse_syncrepl_line(
3424         ConfigArgs      *c,
3425         syncinfo_t      *si )
3426 {
3427         int     gots = 0;
3428         int     i;
3429         char    *val;
3430
3431         for ( i = 1; i < c->argc; i++ ) {
3432                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3433                                         STRLENOF( IDSTR "=" ) ) )
3434                 {
3435                         int tmp;
3436                         /* '\0' string terminator accounts for '=' */
3437                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3438                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3439                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3440                                         "Error: parse_syncrepl_line: "
3441                                         "unable to parse syncrepl id \"%s\"", val );
3442                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3443                                 return -1;
3444                         }
3445                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3446                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3447                                         "Error: parse_syncrepl_line: "
3448                                         "syncrepl id %d is out of range [0..4095]", tmp );
3449                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3450                                 return -1;
3451                         }
3452                         si->si_rid = tmp;
3453                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3454                         gots |= GOT_ID;
3455                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3456                                         STRLENOF( PROVIDERSTR "=" ) ) )
3457                 {
3458                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3459                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3460                         gots |= GOT_PROVIDER;
3461                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3462                                         STRLENOF( SCHEMASTR "=" ) ) )
3463                 {
3464                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3465                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3466                                 si->si_schemachecking = 1;
3467                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3468                                 si->si_schemachecking = 0;
3469                         } else {
3470                                 si->si_schemachecking = 1;
3471                         }
3472                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3473                                         STRLENOF( FILTERSTR "=" ) ) )
3474                 {
3475                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3476                         if ( si->si_filterstr.bv_val )
3477                                 ch_free( si->si_filterstr.bv_val );
3478                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3479                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3480                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3481                 {
3482                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3483                         if ( si->si_logfilterstr.bv_val )
3484                                 ch_free( si->si_logfilterstr.bv_val );
3485                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3486                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3487                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3488                 {
3489                         struct berval   bv;
3490                         int             rc;
3491
3492                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3493                         if ( si->si_base.bv_val ) {
3494                                 ch_free( si->si_base.bv_val );
3495                         }
3496                         ber_str2bv( val, 0, 0, &bv );
3497                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3498                         if ( rc != LDAP_SUCCESS ) {
3499                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3500                                         "Invalid base DN \"%s\": %d (%s)",
3501                                         val, rc, ldap_err2string( rc ) );
3502                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3503                                 return -1;
3504                         }
3505                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3506                                 ch_free( si->si_base.bv_val );
3507                                 BER_BVZERO( &si->si_base );
3508                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3509                                         "Base DN \"%s\" is not within the database naming context",
3510                                         val );
3511                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3512                                 return -1;
3513                         }
3514                         gots |= GOT_BASE;
3515                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3516                                         STRLENOF( LOGBASESTR "=" ) ) )
3517                 {
3518                         struct berval   bv;
3519                         int             rc;
3520
3521                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3522                         if ( si->si_logbase.bv_val ) {
3523                                 ch_free( si->si_logbase.bv_val );
3524                         }
3525                         ber_str2bv( val, 0, 0, &bv );
3526                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3527                         if ( rc != LDAP_SUCCESS ) {
3528                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3529                                         "Invalid logbase DN \"%s\": %d (%s)",
3530                                         val, rc, ldap_err2string( rc ) );
3531                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3532                                 return -1;
3533                         }
3534                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3535                                         STRLENOF( SCOPESTR "=" ) ) )
3536                 {
3537                         int j;
3538                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3539                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3540                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3541                                         si->si_scope = scopes[j].val;
3542                                         break;
3543                                 }
3544                         }
3545                         if ( BER_BVISNULL(&scopes[j].key) ) {
3546                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3547                                         "Error: parse_syncrepl_line: "
3548                                         "unknown scope \"%s\"", val);
3549                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3550                                 return -1;
3551                         }
3552                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3553                                         STRLENOF( ATTRSONLYSTR ) ) )
3554                 {
3555                         si->si_attrsonly = 1;
3556                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3557                                         STRLENOF( ATTRSSTR "=" ) ) )
3558                 {
3559                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3560                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3561                                 char *attr_fname;
3562                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3563                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3564                                 if ( si->si_anlist == NULL ) {
3565                                         ch_free( attr_fname );
3566                                         return -1;
3567                                 }
3568                                 si->si_anfile = attr_fname;
3569                         } else {
3570                                 char *str, *s, *next;
3571                                 const char *delimstr = " ,\t";
3572                                 str = ch_strdup( val );
3573                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3574                                                 s != NULL;
3575                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3576                                 {
3577                                         if ( strlen(s) == 1 && *s == '*' ) {
3578                                                 si->si_allattrs = 1;
3579                                                 val[ s - str ] = delimstr[0];
3580                                         }
3581                                         if ( strlen(s) == 1 && *s == '+' ) {
3582                                                 si->si_allopattrs = 1;
3583                                                 val [ s - str ] = delimstr[0];
3584                                         }
3585                                 }
3586                                 ch_free( str );
3587                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3588                                 if ( si->si_anlist == NULL ) {
3589                                         return -1;
3590                                 }
3591                         }
3592                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3593                                         STRLENOF( EXATTRSSTR "=" ) ) )
3594                 {
3595                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3596                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3597                                 char *attr_fname;
3598                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3599                                 si->si_exanlist = file2anlist(
3600                                         si->si_exanlist, attr_fname, " ,\t" );
3601                                 if ( si->si_exanlist == NULL ) {
3602                                         ch_free( attr_fname );
3603                                         return -1;
3604                                 }
3605                                 ch_free( attr_fname );
3606                         } else {
3607                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3608                                 if ( si->si_exanlist == NULL ) {
3609                                         return -1;
3610                                 }
3611                         }
3612                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3613                                         STRLENOF( TYPESTR "=" ) ) )
3614                 {
3615                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3616                         if ( !strncasecmp( val, "refreshOnly",
3617                                                 STRLENOF("refreshOnly") ) )
3618                         {
3619                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3620                         } else if ( !strncasecmp( val, "refreshAndPersist",
3621                                                 STRLENOF("refreshAndPersist") ) )
3622                         {
3623                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3624                                 si->si_interval = 60;
3625                         } else {
3626                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3627                                         "Error: parse_syncrepl_line: "
3628                                         "unknown sync type \"%s\"", val);
3629                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3630                                 return -1;
3631                         }
3632                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3633                                         STRLENOF( INTERVALSTR "=" ) ) )
3634                 {
3635                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3636                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3637                                 si->si_interval = 0;
3638                         } else if ( strchr( val, ':' ) != NULL ) {
3639                                 char *next, *ptr = val;
3640                                 int dd, hh, mm, ss;
3641
3642                                 dd = strtol( ptr, &next, 10 );
3643                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3644                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3645                                                 "Error: parse_syncrepl_line: "
3646                                                 "invalid interval \"%s\", unable to parse days", val );
3647                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3648                                         return -1;
3649                                 }
3650                                 ptr = next + 1;
3651                                 hh = strtol( ptr, &next, 10 );
3652                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3653                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3654                                                 "Error: parse_syncrepl_line: "
3655                                                 "invalid interval \"%s\", unable to parse hours", val );
3656                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3657                                         return -1;
3658                                 }
3659                                 ptr = next + 1;
3660                                 mm = strtol( ptr, &next, 10 );
3661                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3662                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3663                                                 "Error: parse_syncrepl_line: "
3664                                                 "invalid interval \"%s\", unable to parse minutes", val );
3665                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3666                                         return -1;
3667                                 }
3668                                 ptr = next + 1;
3669                                 ss = strtol( ptr, &next, 10 );
3670                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3671                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3672                                                 "Error: parse_syncrepl_line: "
3673                                                 "invalid interval \"%s\", unable to parse seconds", val );
3674                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3675                                         return -1;
3676                                 }
3677                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3678                         } else {
3679                                 unsigned long   t;
3680
3681                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3682                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3683                                                 "Error: parse_syncrepl_line: "
3684                                                 "invalid interval \"%s\"", val );
3685                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3686                                         return -1;
3687                                 }
3688                                 si->si_interval = (time_t)t;
3689                         }
3690                         if ( si->si_interval < 0 ) {
3691                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3692                                         "Error: parse_syncrepl_line: "
3693                                         "invalid interval \"%ld\"",
3694                                         (long) si->si_interval);
3695                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3696                                 return -1;
3697                         }
3698                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3699                                         STRLENOF( RETRYSTR "=" ) ) )
3700                 {
3701                         char **retry_list;
3702                         int j, k, n;
3703
3704                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3705                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3706                         retry_list[0] = NULL;
3707
3708                         slap_str2clist( &retry_list, val, " ,\t" );
3709
3710                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3711                         n = k / 2;
3712                         if ( k % 2 ) {
3713                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3714                                         "Error: incomplete syncrepl retry list" );
3715                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3716                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3717                                         ch_free( retry_list[k] );
3718                                 }
3719                                 ch_free( retry_list );
3720                                 return 1;
3721                         }
3722                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3723                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3724                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3725                         for ( j = 0; j < n; j++ ) {
3726                                 unsigned long   t;
3727                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3728                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3729                                                 "Error: invalid retry interval \"%s\" (#%d)",
3730                                                 retry_list[j*2], j );
3731                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3732                                         /* do some cleanup */
3733                                         return 1;
3734                                 }
3735                                 si->si_retryinterval[j] = (time_t)t;
3736                                 if ( *retry_list[j*2+1] == '+' ) {
3737                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3738                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3739                                         j++;
3740                                         break;
3741                                 } else {
3742                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3743                                                         || si->si_retrynum_init[j] <= 0 )
3744                                         {
3745                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3746                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3747                                                         retry_list[j*2+1], j );
3748                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3749                                                 /* do some cleanup */
3750                                                 return 1;
3751                                         }
3752                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3753                                                         || si->si_retrynum[j] <= 0 )
3754                                         {
3755                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3756                                                         "Error: invalid retry number \"%s\" (#%d)",
3757                                                         retry_list[j*2+1], j );
3758                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3759                                                 /* do some cleanup */
3760                                                 return 1;
3761                                         }
3762                                 }
3763                         }
3764                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3765                         si->si_retrynum[j] = RETRYNUM_TAIL;
3766                         si->si_retryinterval[j] = 0;
3767
3768                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3769                                 ch_free( retry_list[k] );
3770                         }
3771                         ch_free( retry_list );
3772                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3773                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3774                 {
3775                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3776                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3777                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3778                         {
3779                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3780                                         "invalid manageDSAit value \"%s\".\n",
3781                                         val );
3782                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3783                                 return 1;
3784                         }
3785                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3786                                         STRLENOF( SLIMITSTR "=") ) )
3787                 {
3788                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3789                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3790                                 si->si_slimit = 0;
3791
3792                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3793                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3794                                         "invalid size limit value \"%s\".\n",
3795                                         val );
3796                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3797                                 return 1;
3798                         }
3799                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3800                                         STRLENOF( TLIMITSTR "=" ) ) )
3801                 {
3802                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3803                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3804                                 si->si_tlimit = 0;
3805
3806                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3807                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3808                                         "invalid time limit value \"%s\".\n",
3809                                         val );
3810                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3811                                 return 1;
3812                         }
3813                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3814                                         STRLENOF( SYNCDATASTR "=" ) ) )
3815                 {
3816                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3817                         si->si_syncdata = verb_to_mask( val, datamodes );
3818                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3819                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3820                                 "Error: parse_syncrepl_line: "
3821                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3822                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3823                         return -1;
3824                 }
3825         }
3826
3827         if ( gots != GOT_ALL ) {
3828                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3829                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3830                         gots & GOT_ID ? "" : " "IDSTR,
3831                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3832                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3833                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3834                 return -1;
3835         }
3836
3837         return 0;
3838 }
3839
3840 static int
3841 add_syncrepl(
3842         ConfigArgs *c )
3843 {
3844         syncinfo_t *si;
3845         int     rc = 0;
3846
3847         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3848                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3849                         "operations required for syncrepl", c->be->be_type );
3850                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3851                 return 1;
3852         }
3853         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3854                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3855                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3856                 return 1;
3857         }
3858         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3859
3860         if ( si == NULL ) {
3861                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3862                 return 1;
3863         }
3864
3865         si->si_bindconf.sb_tls = SB_TLS_OFF;
3866         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3867         si->si_schemachecking = 0;
3868         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3869                 &si->si_filterstr );
3870         si->si_base.bv_val = NULL;
3871         si->si_scope = LDAP_SCOPE_SUBTREE;
3872         si->si_attrsonly = 0;
3873         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3874         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3875         si->si_attrs = NULL;
3876         si->si_allattrs = 0;
3877         si->si_allopattrs = 0;
3878         si->si_exattrs = NULL;
3879         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3880         si->si_interval = 86400;
3881         si->si_retryinterval = NULL;
3882         si->si_retrynum_init = NULL;
3883         si->si_retrynum = NULL;
3884         si->si_manageDSAit = 0;
3885         si->si_tlimit = 0;
3886         si->si_slimit = 0;
3887
3888         si->si_presentlist = NULL;
3889         LDAP_LIST_INIT( &si->si_nonpresentlist );
3890         ldap_pvt_thread_mutex_init( &si->si_mutex );
3891
3892         rc = parse_syncrepl_line( c, si );
3893
3894         if ( rc == 0 ) {
3895                 /* Must be LDAPv3 because we need controls */
3896                 switch ( si->si_bindconf.sb_version ) {
3897                 case 0:
3898                         /* not explicitly set */
3899                         si->si_bindconf.sb_version = LDAP_VERSION3;
3900                         break;
3901                 case 3:
3902                         /* explicitly set */
3903                         break;
3904                 default:
3905                         Debug( LDAP_DEBUG_ANY,
3906                                 "version %d incompatible with syncrepl\n",
3907                                 si->si_bindconf.sb_version, 0, 0 );
3908                         syncinfo_free( si, 0 );
3909                         return 1;
3910                 }
3911
3912                 si->si_be = c->be;
3913                 if ( slapMode & SLAP_SERVER_MODE ) {
3914                         Listener **l = slapd_get_listeners();
3915                         int isMe = 0;
3916
3917                         /* check if URL points to current server. If so, ignore
3918                          * this configuration. We require an exact match. Just
3919                          * in case they really want to do this, they can vary
3920                          * the case of the URL to allow it.
3921                          */
3922                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3923                                 int i;
3924                                 for ( i=0; l[i]; i++ ) {
3925                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3926                                                 isMe = 1;
3927                                                 break;
3928                                         }
3929                                 }
3930                         }
3931
3932                         if ( !isMe ) {
3933                                 init_syncrepl( si );
3934                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3935                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3936                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3937                                         si->si_ridtxt );
3938                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3939                                 if ( si->si_re )
3940                                         rc = config_sync_shadow( c ) ? -1 : 0;
3941                                 else
3942                                         rc = -1;
3943                         }
3944                 } else {
3945                         /* mirrormode still needs to see this flag in tool mode */
3946                         rc = config_sync_shadow( c ) ? -1 : 0;
3947                 }
3948         }
3949
3950 #ifdef HAVE_TLS
3951         /* Use main slapd defaults */
3952         bindconf_tls_defaults( &si->si_bindconf );
3953 #endif
3954         if ( rc < 0 ) {
3955                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3956                 syncinfo_free( si, 0 );
3957                 return 1;
3958         } else {
3959                 Debug( LDAP_DEBUG_CONFIG,
3960                         "Config: ** successfully added syncrepl \"%s\"\n",
3961                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3962                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3963                 if ( !si->si_schemachecking ) {
3964                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3965                 }
3966                 if ( c->be->be_syncinfo ) {
3967                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3968                 } else {
3969                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3970                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3971                 }
3972                 si->si_next = c->be->be_syncinfo;
3973                 c->be->be_syncinfo = si;
3974                 return 0;
3975         }
3976 }
3977
3978 static void
3979 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3980 {
3981         struct berval bc, uri;
3982         char buf[BUFSIZ*2], *ptr;
3983         int i;
3984
3985 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3986
3987         BER_BVZERO( bv );
3988
3989         /* temporarily inhibit bindconf from printing URI */
3990         uri = si->si_bindconf.sb_uri;
3991         BER_BVZERO( &si->si_bindconf.sb_uri );
3992         si->si_bindconf.sb_version = 0;
3993         bindconf_unparse( &si->si_bindconf, &bc );
3994         si->si_bindconf.sb_uri = uri;
3995         si->si_bindconf.sb_version = LDAP_VERSION3;
3996
3997         ptr = buf;
3998         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3999         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4000                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4001         if ( ptr - buf >= sizeof( buf ) ) return;
4002         if ( !BER_BVISNULL( &bc ) ) {
4003                 if ( WHATSLEFT <= bc.bv_len ) {
4004                         free( bc.bv_val );
4005                         return;
4006                 }
4007                 ptr = lutil_strcopy( ptr, bc.bv_val );
4008                 free( bc.bv_val );
4009         }
4010         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4011                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4012                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4013                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4014                 *ptr++ = '"';
4015         }
4016         if ( !BER_BVISNULL( &si->si_base ) ) {
4017                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4018                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4019                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4020                 *ptr++ = '"';
4021         }
4022         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4023                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4024                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4025                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4026                 *ptr++ = '"';
4027         }
4028         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4029                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4030                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4031                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4032                 *ptr++ = '"';
4033         }
4034         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4035                 if ( si->si_scope == scopes[i].val ) {
4036                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4037                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4038                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4039                         break;
4040                 }
4041         }
4042         if ( si->si_attrsonly ) {
4043                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4044                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4045         }
4046         if ( si->si_anfile ) {
4047                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4048                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4049                 ptr = lutil_strcopy( ptr, si->si_anfile );
4050                 *ptr++ = '"';
4051         } else if ( si->si_allattrs || si->si_allopattrs ||
4052                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4053         {
4054                 char *old;
4055
4056                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4057                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4058                 old = ptr;
4059                 /* FIXME: add check for overflow */
4060                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4061                 if ( si->si_allattrs ) {
4062                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4063                         if ( old != ptr ) *ptr++ = ',';
4064                         *ptr++ = '*';
4065                 }
4066                 if ( si->si_allopattrs ) {
4067                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4068                         if ( old != ptr ) *ptr++ = ',';
4069                         *ptr++ = '+';
4070                 }
4071                 *ptr++ = '"';
4072         }
4073         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4074                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4075                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4076                 /* FIXME: add check for overflow */
4077                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4078         }
4079         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4080         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4081         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4082
4083         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4084         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4085         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4086                 "refreshAndPersist" : "refreshOnly" );
4087
4088         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4089                 int dd, hh, mm, ss;
4090
4091                 dd = si->si_interval;
4092                 ss = dd % 60;
4093                 dd /= 60;
4094                 mm = dd % 60;
4095                 dd /= 60;
4096                 hh = dd % 24;
4097                 dd /= 24;
4098                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4099                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4100                 if ( ptr - buf >= sizeof( buf ) ) return;
4101         } else if ( si->si_retryinterval ) {
4102                 int space=0;
4103                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4104                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4105                 for (i=0; si->si_retryinterval[i]; i++) {
4106                         if ( space ) *ptr++ = ' ';
4107                         space = 1;
4108                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4109                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4110                                 *ptr++ = '+';
4111                         else
4112                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4113                 }
4114                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4115                 *ptr++ = '"';
4116         }
4117
4118         if ( si->si_slimit ) {
4119                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4120                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4121                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4122         }
4123
4124         if ( si->si_tlimit ) {
4125                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4126                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4127                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4128         }
4129
4130         if ( si->si_syncdata ) {
4131                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4132                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4133                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4134                         ptr = lutil_strcopy( ptr, bc.bv_val );
4135                 }
4136         }
4137         bc.bv_len = ptr - buf;
4138         bc.bv_val = buf;
4139         ber_dupbv( bv, &bc );
4140 }
4141
4142 int
4143 syncrepl_config( ConfigArgs *c )
4144 {
4145         if (c->op == SLAP_CONFIG_EMIT) {
4146                 if ( c->be->be_syncinfo ) {
4147                         struct berval bv;
4148                         syncinfo_t *si;
4149
4150                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4151                                 syncrepl_unparse( si, &bv );
4152                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4153                         }
4154                         return 0;
4155                 }
4156                 return 1;
4157         } else if ( c->op == LDAP_MOD_DELETE ) {
4158                 cookie_state *cs = NULL;
4159                 if ( c->be->be_syncinfo ) {
4160                         syncinfo_t *si, **sip;
4161                         int i;
4162
4163                         cs = c->be->be_syncinfo->si_cookieState;
4164                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4165                                 si = *sip;
4166                                 if ( c->valx == -1 || i == c->valx ) {
4167                                         int isrunning = 0;
4168                                         *sip = si->si_next;
4169                                         /* If the task is currently active, we have to leave
4170                                          * it running. It will exit on its own. This will only
4171                                          * happen when running on the cn=config DB.
4172                                          */
4173                                         if ( si->si_re ) {
4174                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4175                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4176                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4177                                         }
4178                                         if ( si->si_re && isrunning ) {
4179                                                 si->si_ctype = 0;
4180                                         } else {
4181                                                 syncinfo_free( si, 0 );
4182                                         }
4183                                         if ( i == c->valx )
4184                                                 break;
4185                                 } else {
4186                                         sip = &si->si_next;
4187                                 }
4188                         }
4189                 }
4190                 if ( !c->be->be_syncinfo ) {
4191                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4192                         if ( cs ) {
4193                                 ber_bvarray_free( cs->cs_vals );
4194                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4195                                 ch_free( cs );
4196                         }
4197                 }
4198                 return 0;
4199         }
4200         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4201                 Debug(LDAP_DEBUG_ANY, "%s: "
4202                         "syncrepl: database already shadowed.\n",
4203                         c->log, 0, 0);
4204                 return(1);
4205         } else {
4206                 return add_syncrepl( c );
4207         }
4208 }