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 sync_cookie *, int );
 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 check_syncprov(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         AttributeName at[2];
 441         Attribute a = {0};
 442         Entry e = {0};
 443         SlapReply rs = {0};
 444         int i, j, changed = 0;
 445
 446         /* Look for contextCSN from syncprov overlay. If
 447          * there's no overlay, this will be a no-op. That means
 448          * this is a pure consumer, so local changes will not be
 449          * allowed, and all changes will already be reflected in
 450          * the cookieState.
 451          */
 452         a.a_desc = slap_schema.si_ad_contextCSN;
 453         e.e_attrs = &a;
 454         e.e_name = op->o_bd->be_suffix[0];
 455         e.e_nname = op->o_bd->be_nsuffix[0];
 456         at[0].an_name = a.a_desc->ad_cname;
 457         at[0].an_desc = a.a_desc;
 458         BER_BVZERO( &at[1].an_name );
 459         rs.sr_entry = &e;
 460         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 461         rs.sr_attrs = at;
 462         op->o_req_dn = e.e_name;
 463         op->o_req_ndn = e.e_nname;
 464
 465         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 466         i = backend_operational( op, &rs );
 467         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 468                 int num = a.a_numvals;
 469                 /* check for differences */
 470                 if ( num != si->si_cookieState->cs_num ) {
 471                         changed = 1;
 472                 } else {
 473                         for ( i=0; i<num; i++ ) {
 474                                 if ( ber_bvcmp( &a.a_nvals[i],
 475                                         &si->si_cookieState->cs_vals[i] )) {
 476                                         changed =1;
 477                                         break;
 478                                 }
 479                         }
 480                 }
 481                 if ( changed ) {
 482                         ber_bvarray_free( si->si_cookieState->cs_vals );
 483                         ch_free( si->si_cookieState->cs_sids );
 484                         si->si_cookieState->cs_num = num;
 485                         si->si_cookieState->cs_vals = a.a_nvals;
 486                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 487                                 num, NULL );
 488                         si->si_cookieState->cs_age++;
 489                 } else {
 490                         ber_bvarray_free( a.a_nvals );
 491                 }
 492                 ber_bvarray_free( a.a_vals );
 493         }
 494         /* See if the cookieState has changed due to anything outside
 495          * this particular consumer. That includes other consumers in
 496          * the same context, or local changes detected above.
 497          */
 498         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 499                 si->si_cookieState->cs_age ) {
 500                 if ( !si->si_syncCookie.numcsns ) {
 501                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 502                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 503                                 si->si_cookieState->cs_vals, NULL );
 504                         changed = 1;
 505                 } else {
 506                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 507                                 /* bogus, just dup everything */
 508                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 509                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 510                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 511                                                 si->si_cookieState->cs_vals, NULL );
 512                                         changed = 1;
 513                                         break;
 514                                 }
 515                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 516                                         if ( si->si_syncCookie.sids[i] !=
 517                                                 si->si_cookieState->cs_sids[j] )
 518                                                 continue;
 519                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 520                                                 &si->si_cookieState->cs_vals[j] ))
 521                                                 break;
 522                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 523                                                 &si->si_cookieState->cs_vals[j] );
 524                                         changed = 1;
 525                                         break;
 526                                 }
 527                         }
 528                 }
 529         }
 530         if ( changed ) {
 531                 si->si_cookieAge = si->si_cookieState->cs_age;
 532                 ch_free( si->si_syncCookie.octet_str.bv_val );
 533                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 534                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 535                         si->si_syncCookie.sid );
 536         }
 537         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 538         return changed;
 539 }
 540
 541 static int
 542 do_syncrep1(
 543         Operation *op,
 544         syncinfo_t *si )
 545 {
 546         int     rc;
 547         int cmdline_cookie_found = 0;
 548
 549         struct sync_cookie      *sc = NULL;
 550 #ifdef HAVE_TLS
 551         void    *ssl;
 552 #endif
 553
 554         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 555         if ( rc != LDAP_SUCCESS ) {
 556                 goto done;
 557         }
 558         op->o_protocol = LDAP_VERSION3;
 559
 560         /* Set SSF to strongest of TLS, SASL SSFs */
 561         op->o_sasl_ssf = 0;
 562         op->o_tls_ssf = 0;
 563         op->o_transport_ssf = 0;
 564 #ifdef HAVE_TLS
 565         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 566                 == LDAP_SUCCESS && ssl != NULL )
 567         {
 568                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 569         }
 570 #endif /* HAVE_TLS */
 571         {
 572                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 573                                                   to use sasl_ssf_t but currently uses ber_len_t */
 574                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 575                 op->o_sasl_ssf = ssf;
 576         }
 577         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 578                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 579
 580         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 581
 582         si->si_syncCookie.rid = si->si_rid;
 583
 584         /* whenever there are multiple data sources possible, advertise sid */
 585         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 586                 slap_serverID : -1;
 587
 588         /* We've just started up, or the remote server hasn't sent us
 589          * any meaningful state.
 590          */
 591         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 592                 int i;
 593
 594                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 595                         if ( si->si_rid == sc->rid ) {
 596                                 cmdline_cookie_found = 1;
 597                                 break;
 598                         }
 599                 }
 600
 601                 if ( cmdline_cookie_found ) {
 602                         /* cookie is supplied in the command line */
 603
 604                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 605
 606                         /* ctxcsn wasn't parsed yet, do it now */
 607                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 608                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 609                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 610                         slap_sync_cookie_free( sc, 1 );
 611                 } else {
 612                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 613                         if ( !si->si_cookieState->cs_num ) {
 614                                 /* get contextCSN shadow replica from database */
 615                                 BerVarray csn = NULL;
 616                                 void *ctx = op->o_tmpmemctx;
 617
 618                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 619                                 op->o_req_dn = op->o_req_ndn;
 620
 621                                 /* try to read stored contextCSN */
 622                                 op->o_tmpmemctx = NULL;
 623                                 backend_attribute( op, NULL, &op->o_req_ndn,
 624                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 625                                 op->o_tmpmemctx = ctx;
 626                                 if ( csn ) {
 627                                         si->si_cookieState->cs_vals = csn;
 628                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 629                                         si->si_cookieState->cs_num = i;
 630                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 631                                 }
 632                         }
 633                         if ( si->si_cookieState->cs_num ) {
 634                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 635                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 636                                         si->si_cookieState->cs_vals, NULL )) {
 637                                         rc = LDAP_NO_MEMORY;
 638                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 639                                         goto done;
 640                                 }
 641                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 642                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 643                                         sizeof(int) );
 644                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 645                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 646                         }
 647                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 648                 }
 649
 650                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 651                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 652                         si->si_syncCookie.sid );
 653         } else {
 654                 /* Look for contextCSN from syncprov overlay. */
 655                 check_syncprov( op, si );
 656         }
 657
 658         si->si_refreshDone = 0;
 659
 660         rc = ldap_sync_search( si, op->o_tmpmemctx );
 661
 662         if( rc != LDAP_SUCCESS ) {
 663                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 664                         "ldap_search_ext: %s (%d)\n",
 665                         si->si_ridtxt, ldap_err2string( rc ), rc );
 666         }
 667
 668 done:
 669         if ( rc ) {
 670                 if ( si->si_ld ) {
 671                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 672                         si->si_ld = NULL;
 673                 }
 674         }
 675
 676         return rc;
 677 }
 678
 679 static int
 680 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 681 {
 682         int i, j, match = 0;
 683         const char *text;
 684
 685         *which = 0;
 686
 687         if ( sc1->numcsns < sc2->numcsns ) {
 688                 *which = sc1->numcsns;
 689                 return -1;
 690         }
 691
 692         for (j=0; j<sc2->numcsns; j++) {
 693                 for (i=0; i<sc1->numcsns; i++) {
 694                         if ( sc1->sids[i] != sc2->sids[j] )
 695                                 continue;
 696                         value_match( &match, slap_schema.si_ad_entryCSN,
 697                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 698                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 699                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 700                         if ( match < 0 ) {
 701                                 *which = j;
 702                                 return match;
 703                         }
 704                         break;
 705                 }
 706                 if ( i == sc1->numcsns ) {
 707                         /* sc2 has a sid sc1 lacks */
 708                         *which = j;
 709                         return -1;
 710                 }
 711         }
 712         return match;
 713 }
 714
 715 #define SYNC_PAUSED     -3
 716
 717 static int
 718 do_syncrep2(
 719         Operation *op,
 720         syncinfo_t *si )
 721 {
 722         LDAPControl     **rctrls = NULL;
 723         LDAPControl     *rctrlp;
 724
 725         BerElementBuffer berbuf;
 726         BerElement      *ber = (BerElement *)&berbuf;
 727
 728         LDAPMessage     *msg = NULL;
 729
 730         char            *retoid = NULL;
 731         struct berval   *retdata = NULL;
 732
 733         Entry           *entry = NULL;
 734
 735         int             syncstate;
 736         struct berval   syncUUID = BER_BVNULL;
 737         struct sync_cookie      syncCookie = { NULL };
 738         struct sync_cookie      syncCookie_req = { NULL };
 739         struct berval           cookie = BER_BVNULL;
 740
 741         int             rc,
 742                         err = LDAP_SUCCESS;
 743         ber_len_t       len;
 744
 745         struct berval   *psub;
 746         Modifications   *modlist = NULL;
 747
 748         int                             match, m;
 749
 750         struct timeval *tout_p = NULL;
 751         struct timeval tout = { 0, 0 };
 752
 753         int             refreshDeletes = 0;
 754         BerVarray syncUUIDs = NULL;
 755         ber_tag_t si_tag;
 756
 757         if ( slapd_shutdown ) {
 758                 rc = -2;
 759                 goto done;
 760         }
 761
 762         ber_init2( ber, NULL, LBER_USE_DER );
 763         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 764
 765         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 766
 767         psub = &si->si_be->be_nsuffix[0];
 768
 769         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 770
 771         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 772                 tout_p = &tout;
 773         } else {
 774                 tout_p = NULL;
 775         }
 776
 777         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 778                 tout_p, &msg ) ) > 0 )
 779         {
 780                 if ( slapd_shutdown ) {
 781                         rc = -2;
 782                         goto done;
 783                 }
 784                 switch( ldap_msgtype( msg ) ) {
 785                 case LDAP_RES_SEARCH_ENTRY:
 786                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 787                         /* we can't work without the control */
 788                         rctrlp = NULL;
 789                         if ( rctrls ) {
 790                                 LDAPControl **next;
 791                                 /* NOTE: make sure we use the right one;
 792                                  * a better approach would be to run thru
 793                                  * the whole list and take care of all */
 794                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 795                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 796                                 {
 797                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 798                                                 "got search entry with multiple "
 799                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 800                                         rc = -1;
 801                                         goto done;
 802                                 }
 803                         }
 804                         if ( rctrlp == NULL ) {
 805                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 806                                         "got search entry without "
 807                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 808                                 rc = -1;
 809                                 goto done;
 810                         }
 811                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 812                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 813                         /* FIXME: what if syncUUID is NULL or empty?
 814                          * (happens with back-sql...) */
 815                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 816                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 817                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 818                                         si->si_ridtxt,
 819                                         syncrepl_state2str( syncstate ), 0 );
 820                                 ldap_controls_free( rctrls );
 821                                 rc = -1;
 822                                 goto done;
 823                         }
 824                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 825                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 826
 827                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 828                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 829
 830                                 if ( !BER_BVISNULL( &cookie ) ) {
 831                                         ch_free( syncCookie.octet_str.bv_val );
 832                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 833                                 }
 834                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 835                                 {
 836                                         slap_parse_sync_cookie( &syncCookie, NULL );
 837                                         if ( syncCookie.ctxcsn ) {
 838                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 839                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 840                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 841                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 842                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 843                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 844                                                                 ldap_controls_free( rctrls );
 845                                                                 rc = 0;
 846                                                                 goto done;
 847                                                         }
 848                                                 }
 849                                         }
 850                                 }
 851                         }
 852                         rc = 0;
 853                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 854                                 modlist = NULL;
 855                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 856                                         syncCookie.ctxcsn )
 857                                 {
 858                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 859                                 } else switch ( rc ) {
 860                                         case LDAP_ALREADY_EXISTS:
 861                                         case LDAP_NO_SUCH_OBJECT:
 862                                         case LDAP_NO_SUCH_ATTRIBUTE:
 863                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 864                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 865                                                 si->si_logstate = SYNCLOG_FALLBACK;
 866                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 867                                                 break;
 868                                         default:
 869                                                 break;
 870                                 }
 871                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 872                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 873                         {
 874                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 875                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 876                                         syncCookie.ctxcsn )
 877                                 {
 878                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 879                                 }
 880                         }
 881                         ldap_controls_free( rctrls );
 882                         if ( modlist ) {
 883                                 slap_mods_free( modlist, 1 );
 884                         }
 885                         if ( rc )
 886                                 goto done;
 887                         break;
 888
 889                 case LDAP_RES_SEARCH_REFERENCE:
 890                         Debug( LDAP_DEBUG_ANY,
 891                                 "do_syncrep2: %s reference received error\n",
 892                                 si->si_ridtxt, 0, 0 );
 893                         break;
 894
 895                 case LDAP_RES_SEARCH_RESULT:
 896                         Debug( LDAP_DEBUG_SYNC,
 897                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 898                                 si->si_ridtxt, 0, 0 );
 899                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 900                                 &rctrls, 0 );
 901 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 902                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 903                                 /* map old result code to registered code */
 904                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 905                         }
 906 #endif
 907                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 908                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 909                                         si->si_logstate = SYNCLOG_FALLBACK;
 910                                 }
 911                                 rc = err;
 912                                 goto done;
 913                         }
 914                         if ( rctrls ) {
 915                                 rctrlp = *rctrls;
 916                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 917
 918                                 ber_scanf( ber, "{" /*"}"*/);
 919                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 920                                         ber_scanf( ber, "m", &cookie );
 921
 922                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 923                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 924
 925                                         if ( !BER_BVISNULL( &cookie ) ) {
 926                                                 ch_free( syncCookie.octet_str.bv_val );
 927                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 928                                         }
 929                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 930                                         {
 931                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 932                                         }
 933                                 }
 934                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 935                                 {
 936                                         ber_scanf( ber, "b", &refreshDeletes );
 937                                 }
 938                                 ber_scanf( ber, /*"{"*/ "}" );
 939                         }
 940                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 941                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 942                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 943                         }
 944                         if ( !syncCookie.ctxcsn ) {
 945                                 match = 1;
 946                         } else if ( !syncCookie_req.ctxcsn ) {
 947                                 match = -1;
 948                                 m = 0;
 949                         } else {
 950                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 951                         }
 952                         if ( rctrls ) {
 953                                 ldap_controls_free( rctrls );
 954                         }
 955                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 956                                 /* FIXME : different error behaviors according to
 957                                  *      1) err code : LDAP_BUSY ...
 958                                  *      2) on err policy : stop service, stop sync, retry
 959                                  */
 960                                 if ( refreshDeletes == 0 && match < 0 &&
 961                                         err == LDAP_SUCCESS &&
 962                                         syncCookie_req.numcsns == syncCookie.numcsns )
 963                                 {
 964                                         syncrepl_del_nonpresent( op, si, NULL,
 965                                                 &syncCookie, m );
 966                                 } else {
 967                                         avl_free( si->si_presentlist, ch_free );
 968                                         si->si_presentlist = NULL;
 969                                 }
 970                         }
 971                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 972                         {
 973                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 974                         }
 975                         if ( err == LDAP_SUCCESS
 976                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 977                                 si->si_logstate = SYNCLOG_LOGGING;
 978                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 979                         } else {
 980                                 rc = -2;
 981                         }
 982                         goto done;
 983                         break;
 984
 985                 case LDAP_RES_INTERMEDIATE:
 986                         rc = ldap_parse_intermediate( si->si_ld, msg,
 987                                 &retoid, &retdata, NULL, 0 );
 988                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 989                                 ber_init2( ber, retdata, LBER_USE_DER );
 990
 991                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 992                                 ber_tag_t tag;
 993                                 case LDAP_TAG_SYNC_NEW_COOKIE:
 994                                         Debug( LDAP_DEBUG_SYNC,
 995                                                 "do_syncrep2: %s %s - %s\n",
 996                                                 si->si_ridtxt,
 997                                                 "LDAP_RES_INTERMEDIATE",
 998                                                 "NEW_COOKIE" );
 999                                         ber_scanf( ber, "tm", &tag, &cookie );
1000                                         break;
1001                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1002                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1003                                         Debug( LDAP_DEBUG_SYNC,
1004                                                 "do_syncrep2: %s %s - %s\n",
1005                                                 si->si_ridtxt,
1006                                                 "LDAP_RES_INTERMEDIATE",
1007                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1008                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1009                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1010                                                 si->si_refreshDelete = 1;
1011                                         } else {
1012                                                 si->si_refreshPresent = 1;
1013                                         }
1014                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1015                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1016                                         {
1017                                                 ber_scanf( ber, "m", &cookie );
1018
1019                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1020                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1021
1022                                                 if ( !BER_BVISNULL( &cookie ) ) {
1023                                                         ch_free( syncCookie.octet_str.bv_val );
1024                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1025                                                 }
1026                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1027                                                 {
1028                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1029                                                 }
1030                                         }
1031                                         /* Defaults to TRUE */
1032                                         if ( ber_peek_tag( ber, &len ) ==
1033                                                 LDAP_TAG_REFRESHDONE )
1034                                         {
1035                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1036                                         } else
1037                                         {
1038                                                 si->si_refreshDone = 1;
1039                                         }
1040                                         ber_scanf( ber, /*"{"*/ "}" );
1041                                         break;
1042                                 case LDAP_TAG_SYNC_ID_SET:
1043                                         Debug( LDAP_DEBUG_SYNC,
1044                                                 "do_syncrep2: %s %s - %s\n",
1045                                                 si->si_ridtxt,
1046                                                 "LDAP_RES_INTERMEDIATE",
1047                                                 "SYNC_ID_SET" );
1048                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1049                                         if ( ber_peek_tag( ber, &len ) ==
1050                                                 LDAP_TAG_SYNC_COOKIE )
1051                                         {
1052                                                 ber_scanf( ber, "m", &cookie );
1053
1054                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1055                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1056
1057                                                 if ( !BER_BVISNULL( &cookie ) ) {
1058                                                         ch_free( syncCookie.octet_str.bv_val );
1059                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1060                                                 }
1061                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1062                                                 {
1063                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1064                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1065                                                 }
1066                                         }
1067                                         if ( ber_peek_tag( ber, &len ) ==
1068                                                 LDAP_TAG_REFRESHDELETES )
1069                                         {
1070                                                 ber_scanf( ber, "b", &refreshDeletes );
1071                                         }
1072                                         ber_scanf( ber, "[W]", &syncUUIDs );
1073                                         ber_scanf( ber, /*"{"*/ "}" );
1074                                         if ( refreshDeletes ) {
1075                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1076                                                         &syncCookie, m );
1077                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1078                                         } else {
1079                                                 int i;
1080                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1081                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1082                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1083                                                 }
1084                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1085                                         }
1086                                         slap_sync_cookie_free( &syncCookie, 0 );
1087                                         break;
1088                                 default:
1089                                         Debug( LDAP_DEBUG_ANY,
1090                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1091                                                 si->si_ridtxt, (long) si_tag, 0 );
1092                                         ldap_memfree( retoid );
1093                                         ber_bvfree( retdata );
1094                                         continue;
1095                                 }
1096
1097                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1098                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1099                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1100                                 }
1101                                 if ( !syncCookie.ctxcsn ) {
1102                                         match = 1;
1103                                 } else if ( !syncCookie_req.ctxcsn ) {
1104                                         match = -1;
1105                                         m = 0;
1106                                 } else {
1107                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1108                                 }
1109
1110                                 if ( match < 0 ) {
1111                                         if ( si->si_refreshPresent == 1 &&
1112                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1113                                                 syncrepl_del_nonpresent( op, si, NULL,
1114                                                         &syncCookie, m );
1115                                         }
1116
1117                                         if ( syncCookie.ctxcsn )
1118                                         {
1119                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1120                                         }
1121                                 }
1122
1123                                 ldap_memfree( retoid );
1124                                 ber_bvfree( retdata );
1125                                 break;
1126
1127                         } else {
1128                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1129                                         "unknown intermediate response (%d)\n",
1130                                         si->si_ridtxt, rc, 0 );
1131                                 ldap_memfree( retoid );
1132                                 ber_bvfree( retdata );
1133                                 break;
1134                         }
1135                         break;
1136
1137                 default:
1138                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1139                                 "unknown message (0x%02lx)\n",
1140                                 si->si_ridtxt,
1141                                 (unsigned long)ldap_msgtype( msg ), 0 );
1142                         break;
1143
1144                 }
1145                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1146                         slap_sync_cookie_free( &syncCookie_req, 0 );
1147                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1148                         slap_sync_cookie_free( &syncCookie, 0 );
1149                 }
1150                 ldap_msgfree( msg );
1151                 msg = NULL;
1152                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1153                         slap_sync_cookie_free( &syncCookie, 0 );
1154                         slap_sync_cookie_free( &syncCookie_req, 0 );
1155                         return SYNC_PAUSED;
1156                 }
1157         }
1158
1159         if ( rc == -1 ) {
1160                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1161                 err = rc;
1162         }
1163
1164 done:
1165         if ( err != LDAP_SUCCESS ) {
1166                 Debug( LDAP_DEBUG_ANY,
1167                         "do_syncrep2: %s (%d) %s\n",
1168                         si->si_ridtxt, err, ldap_err2string( err ) );
1169         }
1170
1171         slap_sync_cookie_free( &syncCookie, 0 );
1172         slap_sync_cookie_free( &syncCookie_req, 0 );
1173
1174         if ( msg ) ldap_msgfree( msg );
1175
1176         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1177                 if ( si->si_conn ) {
1178                         connection_client_stop( si->si_conn );
1179                         si->si_conn = NULL;
1180                 }
1181                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1182                 si->si_ld = NULL;
1183         }
1184
1185         return rc;
1186 }
1187
1188 static void *
1189 do_syncrepl(
1190         void    *ctx,
1191         void    *arg )
1192 {
1193         struct re_s* rtask = arg;
1194         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1195         Connection conn = {0};
1196         OperationBuffer opbuf;
1197         Operation *op;
1198         int rc = LDAP_SUCCESS;
1199         int dostop = 0, do_setup = 0;
1200         ber_socket_t s;
1201         int i, defer = 1, fail = 0;
1202         Backend *be;
1203
1204         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1205
1206         if ( si == NULL )
1207                 return NULL;
1208
1209         /* There will never be more than one instance active */
1210         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1211
1212         switch( abs( si->si_type ) ) {
1213         case LDAP_SYNC_REFRESH_ONLY:
1214         case LDAP_SYNC_REFRESH_AND_PERSIST:
1215                 break;
1216         default:
1217                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1218                 return NULL;
1219         }
1220
1221         if ( slapd_shutdown ) {
1222                 if ( si->si_ld ) {
1223                         if ( si->si_conn ) {
1224                                 connection_client_stop( si->si_conn );
1225                                 si->si_conn = NULL;
1226                         }
1227                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1228                         si->si_ld = NULL;
1229                 }
1230                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1231                 return NULL;
1232         }
1233
1234         connection_fake_init( &conn, &opbuf, ctx );
1235         op = &opbuf.ob_op;
1236
1237         /* use global malloc for now */
1238         op->o_tmpmemctx = NULL;
1239         op->o_tmpmfuncs = &ch_mfuncs;
1240
1241         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1242         be = si->si_be;
1243
1244         /* Coordinate contextCSN updates with any syncprov overlays
1245          * in use. This may be complicated by the use of the glue
1246          * overlay.
1247          *
1248          * Typically there is a single syncprov mastering the entire
1249          * glued tree. In that case, our contextCSN updates should
1250          * go to the master DB. But if there is no syncprov on the
1251          * master DB, then nothing special is needed here.
1252          *
1253          * Alternatively, there may be individual syncprov overlays
1254          * on each glued branch. In that case, each syncprov only
1255          * knows about changes within its own branch. And so our
1256          * contextCSN updates should only go to the local DB.
1257          */
1258         if ( !si->si_wbe ) {
1259                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1260                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1261                         if ( overlay_is_inst( top_be, "syncprov" ))
1262                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1263                         else
1264                                 si->si_wbe = be;
1265                 } else {
1266                         si->si_wbe = be;
1267                 }
1268         }
1269         if ( !si->si_schemachecking )
1270                 op->o_no_schema_check = 1;
1271
1272         /* Establish session, do search */
1273         if ( !si->si_ld ) {
1274                 si->si_refreshDelete = 0;
1275                 si->si_refreshPresent = 0;
1276
1277                 /* use main DB when retrieving contextCSN */
1278                 op->o_bd = si->si_wbe;
1279                 op->o_dn = op->o_bd->be_rootdn;
1280                 op->o_ndn = op->o_bd->be_rootndn;
1281                 rc = do_syncrep1( op, si );
1282         }
1283
1284 reload:
1285         /* Process results */
1286         if ( rc == LDAP_SUCCESS ) {
1287                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1288
1289                 /* use current DB */
1290                 op->o_bd = be;
1291                 op->o_dn = op->o_bd->be_rootdn;
1292                 op->o_ndn = op->o_bd->be_rootndn;
1293                 rc = do_syncrep2( op, si );
1294                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1295                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1296                         goto reload;
1297                 }
1298
1299                 /* We got deleted while running on cn=config */
1300                 if ( !si->si_ctype ) {
1301                         if ( si->si_conn )
1302                                 dostop = 1;
1303                         rc = -1;
1304                 }
1305
1306                 if ( rc != SYNC_PAUSED ) {
1307                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1308                                 /* If we succeeded, enable the connection for further listening.
1309                                  * If we failed, tear down the connection and reschedule.
1310                                  */
1311                                 if ( rc == LDAP_SUCCESS ) {
1312                                         if ( si->si_conn ) {
1313                                                 connection_client_enable( si->si_conn );
1314                                                 goto success;
1315                                         } else {
1316                                                 do_setup = 1;
1317                                         }
1318                                 } else if ( si->si_conn ) {
1319                                         dostop = 1;
1320                                 }
1321                         } else {
1322                                 if ( rc == -2 ) rc = 0;
1323                         }
1324                 }
1325         }
1326
1327         /* At this point, we have 5 cases:
1328          * 1) for any hard failure, give up and remove this task
1329          * 2) for ServerDown, reschedule this task to run later
1330          * 3) for threadpool pause, reschedule to run immediately
1331          * 4) for Refresh and Success, reschedule to run
1332          * 5) for Persist and Success, reschedule to defer
1333          */
1334         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1335
1336         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1337                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1338         }
1339
1340         if ( dostop ) {
1341                 connection_client_stop( si->si_conn );
1342                 si->si_conn = NULL;
1343         }
1344
1345         if ( rc == SYNC_PAUSED ) {
1346                 rtask->interval.tv_sec = 0;
1347                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1348                 rc = 0;
1349         } else if ( rc == LDAP_SUCCESS ) {
1350                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1351                         defer = 0;
1352                 }
1353                 rtask->interval.tv_sec = si->si_interval;
1354                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1355                 if ( si->si_retrynum ) {
1356                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1357                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1358                         }
1359                         si->si_retrynum[i] = RETRYNUM_TAIL;
1360                 }
1361         } else {
1362                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1363                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1364                                 break;
1365                 }
1366
1367                 if ( !si->si_ctype
1368                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1369                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1370                         fail = RETRYNUM_TAIL;
1371                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1372                         if ( si->si_retrynum[i] > 0 )
1373                                 si->si_retrynum[i]--;
1374                         fail = si->si_retrynum[i];
1375                         rtask->interval.tv_sec = si->si_retryinterval[i];
1376                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1377                         slap_wake_listener();
1378                 }
1379         }
1380
1381         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1382
1383         if ( do_setup )
1384                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1385
1386 success:
1387         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1388
1389         if ( rc ) {
1390                 if ( fail == RETRYNUM_TAIL ) {
1391                         Debug( LDAP_DEBUG_ANY,
1392                                 "do_syncrepl: %s quitting\n",
1393                                 si->si_ridtxt, 0, 0 );
1394                 } else if ( fail > 0 ) {
1395                         Debug( LDAP_DEBUG_ANY,
1396                                 "do_syncrepl: %s retrying (%d retries left)\n",
1397                                 si->si_ridtxt, fail, 0 );
1398                 } else {
1399                         Debug( LDAP_DEBUG_ANY,
1400                                 "do_syncrepl: %s retrying\n",
1401                                 si->si_ridtxt, 0, 0 );
1402                 }
1403         }
1404
1405         /* Do final delete cleanup */
1406         if ( !si->si_ctype ) {
1407                 cookie_state *cs = NULL;
1408                 syncinfo_t **sip;
1409
1410                 cs = be->be_syncinfo->si_cookieState;
1411                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1412                 *sip = si->si_next;
1413                 syncinfo_free( si, 0 );
1414                 if ( !be->be_syncinfo ) {
1415                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1416                         if ( cs ) {
1417                                 ch_free( cs->cs_sids );
1418                                 ber_bvarray_free( cs->cs_vals );
1419                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1420                                 ch_free( cs );
1421                         }
1422                 }
1423         }
1424         return NULL;
1425 }
1426
1427 static slap_verbmasks modops[] = {
1428         { BER_BVC("add"), LDAP_REQ_ADD },
1429         { BER_BVC("delete"), LDAP_REQ_DELETE },
1430         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1431         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1432         { BER_BVNULL, 0 }
1433 };
1434
1435 static Modifications *
1436 syncrepl_accesslog_mods(
1437         syncinfo_t *si,
1438         struct berval *vals
1439 )
1440 {
1441         char *colon;
1442         const char *text;
1443         AttributeDescription *ad;
1444         struct berval bv, bv2;
1445         short op;
1446         Modifications *mod = NULL, *modlist = NULL, **modtail;
1447         int i;
1448
1449         modtail = &modlist;
1450
1451         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1452                 ad = NULL;
1453                 bv = vals[i];
1454
1455                 colon = ber_bvchr( &bv, ':' );
1456                 if ( !colon ) {
1457                         /* Invalid */
1458                         continue;
1459                 }
1460
1461                 bv.bv_len = colon - bv.bv_val;
1462                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1463                         /* Invalid */
1464                         continue;
1465                 }
1466
1467                 /* Ignore dynamically generated attrs */
1468                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1469                         continue;
1470                 }
1471
1472                 /* Ignore excluded attrs */
1473                 if ( ldap_charray_inlist( si->si_exattrs,
1474                         ad->ad_type->sat_cname.bv_val ) )
1475                 {
1476                         continue;
1477                 }
1478
1479                 switch(colon[1]) {
1480                 case '+':       op = LDAP_MOD_ADD; break;
1481                 case '-':       op = LDAP_MOD_DELETE; break;
1482                 case '=':       op = LDAP_MOD_REPLACE; break;
1483                 case '#':       op = LDAP_MOD_INCREMENT; break;
1484                 default:        continue;
1485                 }
1486
1487                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1488                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1489                         mod->sml_flags = 0;
1490                         mod->sml_op = op;
1491                         mod->sml_next = NULL;
1492                         mod->sml_desc = ad;
1493                         mod->sml_type = ad->ad_cname;
1494                         mod->sml_values = NULL;
1495                         mod->sml_nvalues = NULL;
1496                         mod->sml_numvals = 0;
1497
1498                         *modtail = mod;
1499                         modtail = &mod->sml_next;
1500                 }
1501                 if ( colon[2] == ' ' ) {
1502                         bv.bv_val = colon + 3;
1503                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1504                         ber_dupbv( &bv2, &bv );
1505                         ber_bvarray_add( &mod->sml_values, &bv2 );
1506                         mod->sml_numvals++;
1507                 }
1508         }
1509         return modlist;
1510 }
1511
1512 static Modifications *
1513 syncrepl_changelog_mods(
1514         syncinfo_t *si,
1515         struct berval *vals
1516 )
1517 {
1518         return NULL;    /* FIXME */
1519 }
1520
1521 static int
1522 syncrepl_message_to_op(
1523         syncinfo_t      *si,
1524         Operation       *op,
1525         LDAPMessage     *msg
1526 )
1527 {
1528         BerElement      *ber = NULL;
1529         Modifications   *modlist = NULL;
1530         logschema *ls;
1531         SlapReply rs = { REP_RESULT };
1532         slap_callback cb = { NULL, null_callback, NULL, NULL };
1533
1534         const char      *text;
1535         char txtbuf[SLAP_TEXT_BUFLEN];
1536         size_t textlen = sizeof txtbuf;
1537
1538         struct berval   bdn, dn = BER_BVNULL, ndn;
1539         struct berval   bv, *bvals = NULL;
1540         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1541                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1542                 psup = BER_BVNULL, nsup = BER_BVNULL;
1543         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1544
1545         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1546                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1547                         "Message type should be entry (%d)",
1548                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1549                 return -1;
1550         }
1551
1552         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1553                 ls = &accesslog_sc;
1554         else
1555                 ls = &changelog_sc;
1556
1557         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1558
1559         if ( rc != LDAP_SUCCESS ) {
1560                 Debug( LDAP_DEBUG_ANY,
1561                         "syncrepl_message_to_op: %s dn get failed (%d)",
1562                         si->si_ridtxt, rc, 0 );
1563                 return rc;
1564         }
1565
1566         op->o_tag = LBER_DEFAULT;
1567         op->o_bd = si->si_wbe;
1568
1569         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1570                 == LDAP_SUCCESS ) {
1571                 if ( bv.bv_val == NULL )
1572                         break;
1573
1574                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1575                         bdn = bvals[0];
1576                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1577                         ber_dupbv( &op->o_req_dn, &dn );
1578                         ber_dupbv( &op->o_req_ndn, &ndn );
1579                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1580                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1581                         freeReqDn = 1;
1582                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1583                         int i = verb_to_mask( bvals[0].bv_val, modops );
1584                         if ( i < 0 ) {
1585                                 Debug( LDAP_DEBUG_ANY,
1586                                         "syncrepl_message_to_op: %s unknown op %s",
1587                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1588                                 ch_free( bvals );
1589                                 rc = -1;
1590                                 goto done;
1591                         }
1592                         op->o_tag = modops[i].mask;
1593                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1594                         /* Parse attribute into modlist */
1595                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1596                                 modlist = syncrepl_accesslog_mods( si, bvals );
1597                         } else {
1598                                 modlist = syncrepl_changelog_mods( si, bvals );
1599                         }
1600                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1601                         rdn = bvals[0];
1602                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1603                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1604                                 deleteOldRdn = 1;
1605                         }
1606                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1607                         sup = bvals[0];
1608                 } else if ( !ber_bvstrcasecmp( &bv,
1609                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1610                 {
1611                         slap_queue_csn( op, bvals );
1612                 }
1613                 ch_free( bvals );
1614         }
1615
1616         /* If we didn't get a mod type or a target DN, bail out */
1617         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1618                 rc = -1;
1619                 goto done;
1620         }
1621
1622         op->o_callback = &cb;
1623         slap_op_time( &op->o_time, &op->o_tincr );
1624
1625         switch( op->o_tag ) {
1626         case LDAP_REQ_ADD:
1627         case LDAP_REQ_MODIFY:
1628                 /* If we didn't get required data, bail */
1629                 if ( !modlist ) goto done;
1630
1631                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1632
1633                 if ( rc != LDAP_SUCCESS ) {
1634                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1635                                 "mods check (%s)\n",
1636                                 si->si_ridtxt, text, 0 );
1637                         goto done;
1638                 }
1639
1640                 if ( op->o_tag == LDAP_REQ_ADD ) {
1641                         Entry *e = entry_alloc();
1642                         op->ora_e = e;
1643                         op->ora_e->e_name = op->o_req_dn;
1644                         op->ora_e->e_nname = op->o_req_ndn;
1645                         freeReqDn = 0;
1646                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1647                         if( rc != LDAP_SUCCESS ) {
1648                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1649                                 "mods2entry (%s)\n",
1650                                         si->si_ridtxt, text, 0 );
1651                         } else {
1652                                 rc = op->o_bd->be_add( op, &rs );
1653                                 Debug( LDAP_DEBUG_SYNC,
1654                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1655                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1656                         }
1657                         if ( e == op->ora_e )
1658                                 be_entry_release_w( op, op->ora_e );
1659                 } else {
1660                         op->orm_modlist = modlist;
1661                         op->o_bd = si->si_wbe;
1662                         rc = op->o_bd->be_modify( op, &rs );
1663                         modlist = op->orm_modlist;
1664                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1665                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1666                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1667                         op->o_bd = si->si_be;
1668                 }
1669                 break;
1670         case LDAP_REQ_MODRDN:
1671                 if ( BER_BVISNULL( &rdn ) ) goto done;
1672
1673                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1674                         goto done;
1675                 }
1676                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1677                         goto done;
1678                 }
1679                 if ( !BER_BVISNULL( &sup ) ) {
1680                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1681                                 goto done;
1682                         }
1683                         op->orr_newSup = &psup;
1684                         op->orr_nnewSup = &nsup;
1685                 } else {
1686                         op->orr_newSup = NULL;
1687                         op->orr_nnewSup = NULL;
1688                 }
1689                 op->orr_newrdn = prdn;
1690                 op->orr_nnewrdn = nrdn;
1691                 op->orr_deleteoldrdn = deleteOldRdn;
1692                 op->orr_modlist = NULL;
1693                 if ( slap_modrdn2mods( op, &rs ) ) {
1694                         goto done;
1695                 }
1696
1697                 /* Append modlist for operational attrs */
1698                 {
1699                         Modifications *m;
1700
1701                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1702                                 ;
1703                         m->sml_next = modlist;
1704                         modlist = NULL;
1705                 }
1706                 rc = op->o_bd->be_modrdn( op, &rs );
1707                 slap_mods_free( op->orr_modlist, 1 );
1708                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1709                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1710                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1711                 break;
1712         case LDAP_REQ_DELETE:
1713                 rc = op->o_bd->be_delete( op, &rs );
1714                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1715                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1716                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1717                 break;
1718         }
1719 done:
1720         slap_graduate_commit_csn( op );
1721         op->o_bd = si->si_be;
1722         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1723         BER_BVZERO( &op->o_csn );
1724         if ( modlist ) {
1725                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1726         }
1727         if ( !BER_BVISNULL( &rdn ) ) {
1728                 if ( !BER_BVISNULL( &nsup ) ) {
1729                         ch_free( nsup.bv_val );
1730                 }
1731                 if ( !BER_BVISNULL( &psup ) ) {
1732                         ch_free( psup.bv_val );
1733                 }
1734                 if ( !BER_BVISNULL( &nrdn ) ) {
1735                         ch_free( nrdn.bv_val );
1736                 }
1737                 if ( !BER_BVISNULL( &prdn ) ) {
1738                         ch_free( prdn.bv_val );
1739                 }
1740         }
1741         if ( freeReqDn ) {
1742                 ch_free( op->o_req_ndn.bv_val );
1743                 ch_free( op->o_req_dn.bv_val );
1744         }
1745         ber_free( ber, 0 );
1746         return rc;
1747 }
1748
1749 static int
1750 syncrepl_message_to_entry(
1751         syncinfo_t      *si,
1752         Operation       *op,
1753         LDAPMessage     *msg,
1754         Modifications   **modlist,
1755         Entry                   **entry,
1756         int             syncstate
1757 )
1758 {
1759         Entry           *e = NULL;
1760         BerElement      *ber = NULL;
1761         Modifications   tmp;
1762         Modifications   *mod;
1763         Modifications   **modtail = modlist;
1764
1765         const char      *text;
1766         char txtbuf[SLAP_TEXT_BUFLEN];
1767         size_t textlen = sizeof txtbuf;
1768
1769         struct berval   bdn = BER_BVNULL, dn, ndn;
1770         int             rc, is_ctx;
1771
1772         *modlist = NULL;
1773
1774         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1775                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1776                         "Message type should be entry (%d)",
1777                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1778                 return -1;
1779         }
1780
1781         op->o_tag = LDAP_REQ_ADD;
1782
1783         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1784         if ( rc != LDAP_SUCCESS ) {
1785                 Debug( LDAP_DEBUG_ANY,
1786                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1787                         si->si_ridtxt, rc, 0 );
1788                 return rc;
1789         }
1790
1791         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1792                 /* NOTE: this could be done even before decoding the DN,
1793                  * although encoding errors wouldn't be detected */
1794                 rc = LDAP_SUCCESS;
1795                 goto done;
1796         }
1797
1798         if ( entry == NULL ) {
1799                 return -1;
1800         }
1801
1802         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1803         ber_dupbv( &op->o_req_dn, &dn );
1804         ber_dupbv( &op->o_req_ndn, &ndn );
1805         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1806         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1807
1808         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1809
1810         e = entry_alloc();
1811         e->e_name = op->o_req_dn;
1812         e->e_nname = op->o_req_ndn;
1813
1814         while ( ber_remaining( ber ) ) {
1815                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1816                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1817                 {
1818                         break;
1819                 }
1820
1821                 /* Drop all updates to the contextCSN of the context entry
1822                  * (ITS#4622, etc.)
1823                  */
1824                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1825                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1826                         ber_bvarray_free( tmp.sml_values );
1827                         continue;
1828                 }
1829
1830                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1831
1832                 mod->sml_op = LDAP_MOD_REPLACE;
1833                 mod->sml_flags = 0;
1834                 mod->sml_next = NULL;
1835                 mod->sml_desc = NULL;
1836                 mod->sml_type = tmp.sml_type;
1837                 mod->sml_values = tmp.sml_values;
1838                 mod->sml_nvalues = NULL;
1839                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1840
1841                 *modtail = mod;
1842                 modtail = &mod->sml_next;
1843         }
1844
1845         if ( *modlist == NULL ) {
1846                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1847                         si->si_ridtxt, 0, 0 );
1848                 rc = -1;
1849                 goto done;
1850         }
1851
1852         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1853
1854         if ( rc != LDAP_SUCCESS ) {
1855                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1856                         si->si_ridtxt, text, 0 );
1857                 goto done;
1858         }
1859
1860         /* Strip out dynamically generated attrs */
1861         for ( modtail = modlist; *modtail ; ) {
1862                 mod = *modtail;
1863                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1864                         *modtail = mod->sml_next;
1865                         slap_mod_free( &mod->sml_mod, 0 );
1866                         ch_free( mod );
1867                 } else {
1868                         modtail = &mod->sml_next;
1869                 }
1870         }
1871
1872         /* Strip out attrs in exattrs list */
1873         for ( modtail = modlist; *modtail ; ) {
1874                 mod = *modtail;
1875                 if ( ldap_charray_inlist( si->si_exattrs,
1876                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1877                 {
1878                         *modtail = mod->sml_next;
1879                         slap_mod_free( &mod->sml_mod, 0 );
1880                         ch_free( mod );
1881                 } else {
1882                         modtail = &mod->sml_next;
1883                 }
1884         }
1885
1886         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1887         if( rc != LDAP_SUCCESS ) {
1888                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1889                         si->si_ridtxt, text, 0 );
1890         }
1891
1892 done:
1893         ber_free( ber, 0 );
1894         if ( rc != LDAP_SUCCESS ) {
1895                 if ( e ) {
1896                         entry_free( e );
1897                         e = NULL;
1898                 }
1899         }
1900         if ( entry )
1901                 *entry = e;
1902
1903         return rc;
1904 }
1905
1906 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1907
1908 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1909  * entry if a previous refresh was interrupted before sending us a new
1910  * context state. We try to compare the new entry to the existing entry
1911  * and ignore the new entry if they are the same.
1912  *
1913  * Also, we may get an update where the entryDN has changed, due to
1914  * a ModDn on the provider. We detect this as well, so we can issue
1915  * the corresponding operation locally.
1916  *
1917  * In the case of a modify, we get a list of all the attributes
1918  * in the original entry. Rather than deleting the entry and re-adding it,
1919  * we issue a Modify request that deletes all the attributes and adds all
1920  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1921  * entry.
1922  *
1923  * We otherwise distinguish ModDN from Modify; in the case of
1924  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1925  * operational attributes from the entry, and do a regular ModDN.
1926  */
1927 typedef struct dninfo {
1928         Entry *new_entry;
1929         struct berval dn;
1930         struct berval ndn;
1931         int renamed;    /* Was an existing entry renamed? */
1932         int delOldRDN;  /* Was old RDN deleted? */
1933         Modifications **modlist;        /* the modlist we received */
1934         Modifications *mods;    /* the modlist we compared */
1935 } dninfo;
1936
1937 /* return 1 if inserted, 0 otherwise */
1938 static int
1939 avl_presentlist_insert(
1940         syncinfo_t* si,
1941         struct berval *syncUUID )
1942 {
1943         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1944
1945         syncuuid_bv->bv_len = syncUUID->bv_len;
1946         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1947         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1948         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1949
1950         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1951                 syncuuid_cmp, avl_dup_error ) )
1952         {
1953                 ch_free( syncuuid_bv );
1954                 return 0;
1955         }
1956
1957         return 1;
1958 }
1959
1960 static int
1961 syncrepl_entry(
1962         syncinfo_t* si,
1963         Operation *op,
1964         Entry* entry,
1965         Modifications** modlist,
1966         int syncstate,
1967         struct berval* syncUUID,
1968         struct berval* syncCSN )
1969 {
1970         Backend *be = op->o_bd;
1971         slap_callback   cb = { NULL, NULL, NULL, NULL };
1972         int syncuuid_inserted = 0;
1973         struct berval   syncUUID_strrep = BER_BVNULL;
1974
1975         SlapReply       rs_search = {REP_RESULT};
1976         SlapReply       rs_delete = {REP_RESULT};
1977         SlapReply       rs_add = {REP_RESULT};
1978         SlapReply       rs_modify = {REP_RESULT};
1979         Filter f = {0};
1980         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1981         int rc = LDAP_SUCCESS;
1982
1983         struct berval pdn = BER_BVNULL;
1984         dninfo dni = {0};
1985         int     retry = 1;
1986         int     freecsn = 1;
1987
1988         Debug( LDAP_DEBUG_SYNC,
1989                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1990                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1991
1992         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1993                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1994                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1995                 }
1996         }
1997
1998         if ( syncstate == LDAP_SYNC_PRESENT ) {
1999                 return 0;
2000         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2001                 if ( entry == NULL ) {
2002                         return 0;
2003                 }
2004         }
2005
2006         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2007         if ( syncstate != LDAP_SYNC_DELETE ) {
2008                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2009
2010                 if ( a == NULL ) {
2011                         /* add if missing */
2012                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2013                                 &syncUUID_strrep, syncUUID );
2014
2015                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2016                         /* replace only if necessary */
2017                         if ( a->a_nvals != a->a_vals ) {
2018                                 ber_memfree( a->a_nvals[0].bv_val );
2019                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2020                         }
2021                         ber_memfree( a->a_vals[0].bv_val );
2022                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2023                 }
2024         }
2025
2026         f.f_choice = LDAP_FILTER_EQUALITY;
2027         f.f_ava = &ava;
2028         ava.aa_desc = slap_schema.si_ad_entryUUID;
2029         ava.aa_value = *syncUUID;
2030
2031         if ( syncuuid_inserted ) {
2032                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2033                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2034         }
2035         op->ors_filter = &f;
2036
2037         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2038         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2039                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2040         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2041         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2042                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2043         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2044         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2045
2046         op->o_tag = LDAP_REQ_SEARCH;
2047         op->ors_scope = LDAP_SCOPE_SUBTREE;
2048         op->ors_deref = LDAP_DEREF_NEVER;
2049
2050         /* get the entry for this UUID */
2051         op->o_req_dn = si->si_base;
2052         op->o_req_ndn = si->si_base;
2053
2054         op->o_time = slap_get_time();
2055         op->ors_tlimit = SLAP_NO_LIMIT;
2056         op->ors_slimit = 1;
2057
2058         op->ors_attrs = slap_anlist_all_attributes;
2059         op->ors_attrsonly = 0;
2060
2061         /* set callback function */
2062         op->o_callback = &cb;
2063         cb.sc_response = dn_callback;
2064         cb.sc_private = &dni;
2065         dni.new_entry = entry;
2066         dni.modlist = modlist;
2067
2068         if ( limits_check( op, &rs_search ) == 0 ) {
2069                 rc = be->be_search( op, &rs_search );
2070                 Debug( LDAP_DEBUG_SYNC,
2071                                 "syncrepl_entry: %s be_search (%d)\n",
2072                                 si->si_ridtxt, rc, 0 );
2073         }
2074
2075         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2076                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2077         }
2078
2079         cb.sc_response = null_callback;
2080         cb.sc_private = si;
2081
2082         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2083                 Debug( LDAP_DEBUG_SYNC,
2084                                 "syncrepl_entry: %s %s\n",
2085                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2086         } else {
2087                 Debug( LDAP_DEBUG_SYNC,
2088                                 "syncrepl_entry: %s %s\n",
2089                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2090         }
2091
2092         assert( BER_BVISNULL( &op->o_csn ) );
2093         if ( syncCSN ) {
2094                 slap_queue_csn( op, syncCSN );
2095         }
2096
2097         slap_op_time( &op->o_time, &op->o_tincr );
2098         switch ( syncstate ) {
2099         case LDAP_SYNC_ADD:
2100         case LDAP_SYNC_MODIFY:
2101                 if ( BER_BVISNULL( &op->o_csn ))
2102                 {
2103
2104                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2105                         if ( a ) {
2106                                 /* FIXME: op->o_csn is assumed to be
2107                                  * on the thread's slab; this needs
2108                                  * to be cleared ASAP.
2109                                  * What happens if already present?
2110                                  */
2111                                 assert( BER_BVISNULL( &op->o_csn ) );
2112                                 op->o_csn = a->a_vals[0];
2113                                 freecsn = 0;
2114                         }
2115                 }
2116 retry_add:;
2117                 if ( BER_BVISNULL( &dni.dn ) ) {
2118
2119                         op->o_req_dn = entry->e_name;
2120                         op->o_req_ndn = entry->e_nname;
2121                         op->o_tag = LDAP_REQ_ADD;
2122                         op->ora_e = entry;
2123                         op->o_bd = si->si_wbe;
2124
2125                         rc = op->o_bd->be_add( op, &rs_add );
2126                         Debug( LDAP_DEBUG_SYNC,
2127                                         "syncrepl_entry: %s be_add (%d)\n",
2128                                         si->si_ridtxt, rc, 0 );
2129                         switch ( rs_add.sr_err ) {
2130                         case LDAP_SUCCESS:
2131                                 if ( op->ora_e == entry ) {
2132                                         be_entry_release_w( op, entry );
2133                                 }
2134                                 entry = NULL;
2135                                 break;
2136
2137                         case LDAP_REFERRAL:
2138                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2139                          * only if the suffix entry is not present */
2140                         case LDAP_NO_SUCH_OBJECT:
2141                                 rc = syncrepl_add_glue( op, entry );
2142                                 entry = NULL;
2143                                 break;
2144
2145                         /* if an entry was added via syncrepl_add_glue(),
2146                          * it likely has no entryUUID, so the previous
2147                          * be_search() doesn't find it.  In this case,
2148                          * give syncrepl a chance to modify it. Also
2149                          * allow for entries that were recreated with the
2150                          * same DN but a different entryUUID.
2151                          */
2152                         case LDAP_ALREADY_EXISTS:
2153                                 if ( retry ) {
2154                                         Operation       op2 = *op;
2155                                         SlapReply       rs2 = { 0 };
2156                                         slap_callback   cb2 = { 0 };
2157
2158                                         op2.o_bd = be;
2159                                         op2.o_tag = LDAP_REQ_SEARCH;
2160                                         op2.o_req_dn = entry->e_name;
2161                                         op2.o_req_ndn = entry->e_nname;
2162                                         op2.ors_scope = LDAP_SCOPE_BASE;
2163                                         op2.ors_deref = LDAP_DEREF_NEVER;
2164                                         op2.ors_attrs = slap_anlist_all_attributes;
2165                                         op2.ors_attrsonly = 0;
2166                                         op2.ors_limit = NULL;
2167                                         op2.ors_slimit = 1;
2168                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2169
2170                                         f.f_choice = LDAP_FILTER_PRESENT;
2171                                         f.f_desc = slap_schema.si_ad_objectClass;
2172                                         op2.ors_filter = &f;
2173                                         op2.ors_filterstr = generic_filterstr;
2174
2175                                         op2.o_callback = &cb2;
2176                                         cb2.sc_response = dn_callback;
2177                                         cb2.sc_private = &dni;
2178
2179                                         rc = be->be_search( &op2, &rs2 );
2180                                         if ( rc ) goto done;
2181
2182                                         retry = 0;
2183                                         slap_op_time( &op->o_time, &op->o_tincr );
2184                                         goto retry_add;
2185                                 }
2186                                 /* FALLTHRU */
2187
2188                         default:
2189                                 Debug( LDAP_DEBUG_ANY,
2190                                         "syncrepl_entry: %s be_add failed (%d)\n",
2191                                         si->si_ridtxt, rs_add.sr_err, 0 );
2192                                 break;
2193                         }
2194                         op->o_bd = be;
2195                         goto done;
2196                 }
2197                 /* FALLTHRU */
2198                 op->o_req_dn = dni.dn;
2199                 op->o_req_ndn = dni.ndn;
2200                 if ( dni.renamed ) {
2201                         struct berval noldp, newp, nnewp;
2202
2203                         op->o_tag = LDAP_REQ_MODRDN;
2204                         dnRdn( &entry->e_name, &op->orr_newrdn );
2205                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2206
2207                         dnParent( &dni.ndn, &noldp );
2208                         dnParent( &entry->e_nname, &nnewp );
2209                         if ( !dn_match( &noldp, &nnewp ) ) {
2210                                 dnParent( &entry->e_name, &newp );
2211                                 op->orr_newSup = &newp;
2212                                 op->orr_nnewSup = &nnewp;
2213                         } else {
2214                                 op->orr_newSup = NULL;
2215                                 op->orr_nnewSup = NULL;
2216                         }
2217                         op->orr_deleteoldrdn = dni.delOldRDN;
2218                         op->orr_modlist = NULL;
2219                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2220                                 goto done;
2221                         }
2222
2223                         /* RDNs must be NUL-terminated for back-ldap */
2224                         noldp = op->orr_newrdn;
2225                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2226                         noldp = op->orr_nnewrdn;
2227                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2228
2229                         /* Setup opattrs too */
2230                         {
2231                                 static AttributeDescription *nullattr = NULL;
2232                                 static AttributeDescription **const opattrs[] = {
2233                                         &slap_schema.si_ad_entryCSN,
2234                                         &slap_schema.si_ad_modifiersName,
2235                                         &slap_schema.si_ad_modifyTimestamp,
2236                                         &nullattr
2237                                 };
2238                                 AttributeDescription *opattr;
2239                                 Modifications *mod, **modtail, **ml;
2240                                 int i;
2241
2242                                 for ( mod = op->orr_modlist;
2243                                         mod->sml_next;
2244                                         mod = mod->sml_next )
2245                                         ;
2246                                 modtail = &mod->sml_next;
2247
2248                                 /* pull mod off incoming modlist, append to orr_modlist */
2249                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2250                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2251                                         {
2252                                                 if ( (*ml)->sml_desc == opattr ) {
2253                                                         mod = *ml;
2254                                                         *ml = mod->sml_next;
2255                                                         mod->sml_next = NULL;
2256                                                         *modtail = mod;
2257                                                         modtail = &mod->sml_next;
2258                                                         break;
2259                                                 }
2260                                         }
2261                                 }
2262                         }
2263                         op->o_bd = si->si_wbe;
2264                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2265                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2266                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2267
2268                         slap_mods_free( op->orr_modlist, 1 );
2269                         Debug( LDAP_DEBUG_SYNC,
2270                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2271                                         si->si_ridtxt, rc, 0 );
2272                         op->o_bd = be;
2273                         goto done;
2274                 }
2275                 if ( dni.mods ) {
2276                         op->o_tag = LDAP_REQ_MODIFY;
2277                         op->orm_modlist = dni.mods;
2278                         op->orm_no_opattrs = 1;
2279                         op->o_bd = si->si_wbe;
2280
2281                         rc = op->o_bd->be_modify( op, &rs_modify );
2282                         slap_mods_free( op->orm_modlist, 1 );
2283                         op->orm_no_opattrs = 0;
2284                         Debug( LDAP_DEBUG_SYNC,
2285                                         "syncrepl_entry: %s be_modify (%d)\n",
2286                                         si->si_ridtxt, rc, 0 );
2287                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2288                                 Debug( LDAP_DEBUG_ANY,
2289                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2290                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2291                         }
2292                         op->o_bd = be;
2293                 } else {
2294                         Debug( LDAP_DEBUG_SYNC,
2295                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2296                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2297                 }
2298                 goto done;
2299         case LDAP_SYNC_DELETE :
2300                 if ( !BER_BVISNULL( &dni.dn ) ) {
2301                         op->o_req_dn = dni.dn;
2302                         op->o_req_ndn = dni.ndn;
2303                         op->o_tag = LDAP_REQ_DELETE;
2304                         op->o_bd = si->si_wbe;
2305                         rc = op->o_bd->be_delete( op, &rs_delete );
2306                         Debug( LDAP_DEBUG_SYNC,
2307                                         "syncrepl_entry: %s be_delete (%d)\n",
2308                                         si->si_ridtxt, rc, 0 );
2309
2310                         while ( rs_delete.sr_err == LDAP_SUCCESS
2311                                 && op->o_delete_glue_parent ) {
2312                                 op->o_delete_glue_parent = 0;
2313                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2314                                         slap_callback cb = { NULL };
2315                                         cb.sc_response = slap_null_cb;
2316                                         dnParent( &op->o_req_ndn, &pdn );
2317                                         op->o_req_dn = pdn;
2318                                         op->o_req_ndn = pdn;
2319                                         op->o_callback = &cb;
2320                                         op->o_bd->be_delete( op, &rs_delete );
2321                                 } else {
2322                                         break;
2323                                 }
2324                         }
2325                         op->o_bd = be;
2326                 }
2327                 goto done;
2328
2329         default :
2330                 Debug( LDAP_DEBUG_ANY,
2331                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2332                 goto done;
2333         }
2334
2335 done:
2336         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2337                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2338                 BER_BVZERO( &syncUUID_strrep );
2339         }
2340         if ( !BER_BVISNULL( &dni.ndn ) ) {
2341                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2342         }
2343         if ( !BER_BVISNULL( &dni.dn ) ) {
2344                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2345         }
2346         if ( entry ) {
2347                 entry_free( entry );
2348         }
2349         if ( syncCSN ) {
2350                 slap_graduate_commit_csn( op );
2351         }
2352         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2353                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2354         }
2355         BER_BVZERO( &op->o_csn );
2356         return rc;
2357 }
2358
2359 static struct berval gcbva[] = {
2360         BER_BVC("top"),
2361         BER_BVC("glue"),
2362         BER_BVNULL
2363 };
2364
2365 #define NP_DELETE_ONE   2
2366
2367 static void
2368 syncrepl_del_nonpresent(
2369         Operation *op,
2370         syncinfo_t *si,
2371         BerVarray uuids,
2372         struct sync_cookie *sc,
2373         int m )
2374 {
2375         Backend* be = op->o_bd;
2376         slap_callback   cb = { NULL };
2377         SlapReply       rs_search = {REP_RESULT};
2378         SlapReply       rs_delete = {REP_RESULT};
2379         SlapReply       rs_modify = {REP_RESULT};
2380         struct nonpresent_entry *np_list, *np_prev;
2381         int rc;
2382         AttributeName   an[2];
2383
2384         struct berval pdn = BER_BVNULL;
2385         struct berval csn;
2386
2387         op->o_req_dn = si->si_base;
2388         op->o_req_ndn = si->si_base;
2389
2390         cb.sc_response = nonpresent_callback;
2391         cb.sc_private = si;
2392
2393         op->o_callback = &cb;
2394         op->o_tag = LDAP_REQ_SEARCH;
2395         op->ors_scope = si->si_scope;
2396         op->ors_deref = LDAP_DEREF_NEVER;
2397         op->o_time = slap_get_time();
2398         op->ors_tlimit = SLAP_NO_LIMIT;
2399
2400
2401         if ( uuids ) {
2402                 Filter uf;
2403                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2404                 int i;
2405
2406                 op->ors_attrsonly = 1;
2407                 op->ors_attrs = slap_anlist_no_attrs;
2408                 op->ors_limit = NULL;
2409                 op->ors_filter = &uf;
2410
2411                 uf.f_ava = &eq;
2412                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2413                 uf.f_next = NULL;
2414                 uf.f_choice = LDAP_FILTER_EQUALITY;
2415                 si->si_refreshDelete |= NP_DELETE_ONE;
2416
2417                 for (i=0; uuids[i].bv_val; i++) {
2418                         op->ors_slimit = 1;
2419                         uf.f_av_value = uuids[i];
2420                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2421                         rc = be->be_search( op, &rs_search );
2422                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2423                 }
2424                 si->si_refreshDelete ^= NP_DELETE_ONE;
2425         } else {
2426                 Filter *cf, *of;
2427
2428                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2429                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2430                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2431                 op->ors_attrs = an;
2432                 op->ors_slimit = SLAP_NO_LIMIT;
2433                 op->ors_attrsonly = 0;
2434                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2435                 /* In multimaster, updates can continue to arrive while
2436                  * we're searching. Limit the search result to entries
2437                  * older than all of our cookie CSNs.
2438                  */
2439                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2440                         Filter *f;
2441                         int i;
2442                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2443                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2444                         f = cf;
2445                         f->f_choice = LDAP_FILTER_AND;
2446                         f->f_next = NULL;
2447                         f->f_and = f+1;
2448                         of = f->f_and;
2449                         for ( i=0; i<sc->numcsns; i++ ) {
2450                                 f = of;
2451                                 f->f_choice = LDAP_FILTER_LE;
2452                                 f->f_ava = (AttributeAssertion *)(f+1);
2453                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2454                                 f->f_av_value = sc->ctxcsn[i];
2455                                 f->f_next = (Filter *)(f->f_ava+1);
2456                                 of = f->f_next;
2457                         }
2458                         f->f_next = op->ors_filter;
2459                         of = op->ors_filter;
2460                         op->ors_filter = cf;
2461                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2462                 } else {
2463                         cf = NULL;
2464                         op->ors_filterstr = si->si_filterstr;
2465                 }
2466                 op->o_nocaching = 1;
2467
2468                 if ( limits_check( op, &rs_search ) == 0 ) {
2469                         rc = be->be_search( op, &rs_search );
2470                 }
2471                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2472                         op->o_tmpfree( cf, op->o_tmpmemctx );
2473                         op->ors_filter = of;
2474                 }
2475                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2476
2477         }
2478
2479         op->o_nocaching = 0;
2480
2481         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2482
2483                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2484                         csn = sc->ctxcsn[m];
2485                 } else {
2486                         csn = si->si_syncCookie.ctxcsn[0];
2487                 }
2488
2489                 op->o_bd = si->si_wbe;
2490                 slap_queue_csn( op, &csn );
2491
2492                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2493                 while ( np_list != NULL ) {
2494                         LDAP_LIST_REMOVE( np_list, npe_link );
2495                         np_prev = np_list;
2496                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2497                         op->o_tag = LDAP_REQ_DELETE;
2498                         op->o_callback = &cb;
2499                         cb.sc_response = null_callback;
2500                         cb.sc_private = si;
2501                         op->o_req_dn = *np_prev->npe_name;
2502                         op->o_req_ndn = *np_prev->npe_nname;
2503                         rc = op->o_bd->be_delete( op, &rs_delete );
2504                         Debug( LDAP_DEBUG_SYNC,
2505                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2506                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2507
2508                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2509                                 Modifications mod1, mod2;
2510                                 mod1.sml_op = LDAP_MOD_REPLACE;
2511                                 mod1.sml_flags = 0;
2512                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2513                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2514                                 mod1.sml_numvals = 2;
2515                                 mod1.sml_values = &gcbva[0];
2516                                 mod1.sml_nvalues = NULL;
2517                                 mod1.sml_next = &mod2;
2518
2519                                 mod2.sml_op = LDAP_MOD_REPLACE;
2520                                 mod2.sml_flags = 0;
2521                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2522                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2523                                 mod2.sml_numvals = 1;
2524                                 mod2.sml_values = &gcbva[1];
2525                                 mod2.sml_nvalues = NULL;
2526                                 mod2.sml_next = NULL;
2527
2528                                 op->o_tag = LDAP_REQ_MODIFY;
2529                                 op->orm_modlist = &mod1;
2530
2531                                 rc = op->o_bd->be_modify( op, &rs_modify );
2532                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2533                         }
2534
2535                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2536                                         op->o_delete_glue_parent ) {
2537                                 op->o_delete_glue_parent = 0;
2538                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2539                                         slap_callback cb = { NULL };
2540                                         cb.sc_response = slap_null_cb;
2541                                         dnParent( &op->o_req_ndn, &pdn );
2542                                         op->o_req_dn = pdn;
2543                                         op->o_req_ndn = pdn;
2544                                         op->o_callback = &cb;
2545                                         /* give it a root privil ? */
2546                                         op->o_bd->be_delete( op, &rs_delete );
2547                                 } else {
2548                                         break;
2549                                 }
2550                         }
2551
2552                         op->o_delete_glue_parent = 0;
2553
2554                         ber_bvfree( np_prev->npe_name );
2555                         ber_bvfree( np_prev->npe_nname );
2556                         ch_free( np_prev );
2557
2558                         if ( slapd_shutdown ) {
2559                                 break;
2560                         }
2561                 }
2562
2563                 slap_graduate_commit_csn( op );
2564                 op->o_bd = be;
2565
2566                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2567                 BER_BVZERO( &op->o_csn );
2568         }
2569
2570         return;
2571 }
2572
2573 int
2574 syncrepl_add_glue(
2575         Operation* op,
2576         Entry *e )
2577 {
2578         Backend *be = op->o_bd;
2579         slap_callback cb = { NULL };
2580         Attribute       *a;
2581         int     rc;
2582         int suffrdns;
2583         int i;
2584         struct berval dn = BER_BVNULL;
2585         struct berval ndn = BER_BVNULL;
2586         Entry   *glue;
2587         SlapReply       rs_add = {REP_RESULT};
2588         struct berval   ptr, nptr;
2589         char            *comma;
2590
2591         op->o_tag = LDAP_REQ_ADD;
2592         op->o_callback = &cb;
2593         cb.sc_response = null_callback;
2594         cb.sc_private = NULL;
2595
2596         dn = e->e_name;
2597         ndn = e->e_nname;
2598
2599         /* count RDNs in suffix */
2600         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2601                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2602                         comma++;
2603                         ptr.bv_len -= comma - ptr.bv_val;
2604                         ptr.bv_val = comma;
2605                         i++;
2606                 }
2607                 suffrdns = i;
2608         } else {
2609                 /* suffix is "" */
2610                 suffrdns = 0;
2611         }
2612
2613         /* Start with BE suffix */
2614         ptr = dn;
2615         for ( i = 0; i < suffrdns; i++ ) {
2616                 comma = ber_bvrchr( &ptr, ',' );
2617                 if ( comma != NULL ) {
2618                         ptr.bv_len = comma - ptr.bv_val;
2619                 } else {
2620                         ptr.bv_len = 0;
2621                         break;
2622                 }
2623         }
2624
2625         if ( !BER_BVISEMPTY( &ptr ) ) {
2626                 dn.bv_len -= ptr.bv_len + 1;
2627                 dn.bv_val += ptr.bv_len + 1;
2628         }
2629
2630         /* the normalizedDNs are always the same length, no counting
2631          * required.
2632          */
2633         nptr = ndn;
2634         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2635                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2636                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2637
2638                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2639
2640         } else {
2641                 nptr.bv_len = 0;
2642         }
2643
2644         while ( ndn.bv_val > e->e_nname.bv_val ) {
2645                 glue = entry_alloc();
2646                 ber_dupbv( &glue->e_name, &dn );
2647                 ber_dupbv( &glue->e_nname, &ndn );
2648
2649                 a = attr_alloc( slap_schema.si_ad_objectClass );
2650
2651                 a->a_numvals = 2;
2652                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2653                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2654                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2655                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2656
2657                 a->a_nvals = a->a_vals;
2658
2659                 a->a_next = glue->e_attrs;
2660                 glue->e_attrs = a;
2661
2662                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2663
2664                 a->a_numvals = 1;
2665                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2666                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2667                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2668
2669                 a->a_nvals = a->a_vals;
2670
2671                 a->a_next = glue->e_attrs;
2672                 glue->e_attrs = a;
2673
2674                 op->o_req_dn = glue->e_name;
2675                 op->o_req_ndn = glue->e_nname;
2676                 op->ora_e = glue;
2677                 rc = be->be_add ( op, &rs_add );
2678                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2679                         if ( op->ora_e == glue )
2680                                 be_entry_release_w( op, glue );
2681                 } else {
2682                 /* incl. ALREADY EXIST */
2683                         entry_free( glue );
2684                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2685                                 entry_free( e );
2686                                 return rc;
2687                         }
2688                 }
2689
2690                 /* Move to next child */
2691                 comma = ber_bvrchr( &ptr, ',' );
2692                 if ( comma == NULL ) {
2693                         break;
2694                 }
2695                 ptr.bv_len = comma - ptr.bv_val;
2696
2697                 dn.bv_val = ++comma;
2698                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2699
2700                 comma = ber_bvrchr( &nptr, ',' );
2701                 assert( comma != NULL );
2702                 nptr.bv_len = comma - nptr.bv_val;
2703
2704                 ndn.bv_val = ++comma;
2705                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2706         }
2707
2708         op->o_req_dn = e->e_name;
2709         op->o_req_ndn = e->e_nname;
2710         op->ora_e = e;
2711         rc = be->be_add ( op, &rs_add );
2712         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2713                 if ( op->ora_e == e )
2714                         be_entry_release_w( op, e );
2715         } else {
2716                 entry_free( e );
2717         }
2718
2719         return rc;
2720 }
2721
2722 static int
2723 syncrepl_updateCookie(
2724         syncinfo_t *si,
2725         Operation *op,
2726         struct berval *pdn,
2727         struct sync_cookie *syncCookie )
2728 {
2729         Backend *be = op->o_bd;
2730         Modifications mod;
2731         struct berval first = BER_BVNULL;
2732
2733         int rc, i, j, len;
2734
2735         slap_callback cb = { NULL };
2736         SlapReply       rs_modify = {REP_RESULT};
2737
2738         mod.sml_op = LDAP_MOD_REPLACE;
2739         mod.sml_desc = slap_schema.si_ad_contextCSN;
2740         mod.sml_type = mod.sml_desc->ad_cname;
2741         mod.sml_flags = SLAP_MOD_INTERNAL;
2742         mod.sml_nvalues = NULL;
2743         mod.sml_next = NULL;
2744
2745         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2746
2747         /* clone the cookieState CSNs so we can Replace the whole thing */
2748         mod.sml_numvals = si->si_cookieState->cs_num;
2749         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2750         for ( i=0; i<mod.sml_numvals; i++ )
2751                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2752         BER_BVZERO( &mod.sml_values[i] );
2753
2754         /* find any CSNs in the syncCookie that are newer than the cookieState */
2755         for ( i=0; i<syncCookie->numcsns; i++ ) {
2756                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2757                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2758                                 continue;
2759                         len = syncCookie->ctxcsn[i].bv_len;
2760                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2761                                 len = si->si_cookieState->cs_vals[j].bv_len;
2762                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2763                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2764                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2765                                 if ( BER_BVISNULL( &first ))
2766                                         first = syncCookie->ctxcsn[i];
2767                         }
2768                         break;
2769                 }
2770                 /* there was no match for this SID, it's a new CSN */
2771                 if ( j == si->si_cookieState->cs_num ) {
2772                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2773                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2774                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2775                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2776                         if ( BER_BVISNULL( &first ))
2777                                 first = syncCookie->ctxcsn[i];
2778                 }
2779         }
2780         /* Should never happen, ITS#5065 */
2781         if ( BER_BVISNULL( &first )) {
2782                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2783                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2784                 return 0;
2785         }
2786         op->o_bd = si->si_wbe;
2787         slap_queue_csn( op, &first );
2788
2789         op->o_tag = LDAP_REQ_MODIFY;
2790
2791         cb.sc_response = null_callback;
2792         cb.sc_private = si;
2793
2794         op->o_callback = &cb;
2795         op->o_req_dn = op->o_bd->be_suffix[0];
2796         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2797
2798         /* update contextCSN */
2799         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2800
2801         op->orm_modlist = &mod;
2802         op->orm_no_opattrs = 1;
2803         rc = op->o_bd->be_modify( op, &rs_modify );
2804         op->orm_no_opattrs = 0;
2805         op->o_msgid = 0;
2806
2807         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2808                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2809                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2810                 /* If we replaced any old values */
2811                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2812                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2813                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2814                                                 &mod.sml_values[i] );
2815                 }
2816                 /* Handle any added values */
2817                 if ( i < mod.sml_numvals ) {
2818                         si->si_cookieState->cs_num = mod.sml_numvals;
2819                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2820                         free( si->si_cookieState->cs_sids );
2821                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2822                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2823                 }
2824
2825                 si->si_cookieState->cs_age++;
2826                 si->si_cookieAge = si->si_cookieState->cs_age;
2827         } else {
2828                 Debug( LDAP_DEBUG_ANY,
2829                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2830                         si->si_ridtxt, rs_modify.sr_err, 0 );
2831         }
2832         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2833
2834         op->o_bd = be;
2835         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2836         BER_BVZERO( &op->o_csn );
2837         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2838         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2839
2840         return rc;
2841 }
2842
2843 static void
2844 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2845         Modifications ***mret, Modifications ***mcur )
2846 {
2847         int i, j;
2848         Modifications *mod, **modtail;
2849
2850         modtail = *mret;
2851
2852         if ( old ) {
2853                 int n, o, nn, no;
2854                 struct berval **adds, **dels;
2855                 /* count old and new */
2856                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2857                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2858
2859                 /* there MUST be both old and new values */
2860                 assert( o != 0 );
2861                 assert( n != 0 );
2862                 j = 0;
2863
2864                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2865                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2866
2867                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2868                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2869
2870                 nn = n; no = o;
2871
2872                 for ( i=0; i<o; i++ ) {
2873                         for ( j=0; j<n; j++ ) {
2874                                 if ( !adds[j] )
2875                                         continue;
2876                                 if ( bvmatch( dels[i], adds[j] ) ) {
2877                                         no--;
2878                                         nn--;
2879                                         adds[j] = NULL;
2880                                         dels[i] = NULL;
2881                                         break;
2882                                 }
2883                         }
2884                 }
2885
2886                 /* Don't delete/add an objectClass, always use the replace op.
2887                  * Modify would fail if provider has replaced entry with a new,
2888                  * and the new explicitly includes a superior of a class that was
2889                  * only included implicitly in the old entry.  Ref ITS#5517.
2890                  */
2891                 if ( nn && no < o && old->a_desc == slap_schema.si_ad_objectClass )
2892                         no = o;
2893
2894                 i = j;
2895                 /* all old values were deleted, just use the replace op */
2896                 if ( no == o ) {
2897                         i = j-1;
2898                 } else if ( no ) {
2899                 /* delete some values */
2900                         mod = ch_malloc( sizeof( Modifications ) );
2901                         mod->sml_op = LDAP_MOD_DELETE;
2902                         mod->sml_flags = 0;
2903                         mod->sml_desc = old->a_desc;
2904                         mod->sml_type = mod->sml_desc->ad_cname;
2905                         mod->sml_numvals = no;
2906                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2907                         if ( old->a_vals != old->a_nvals ) {
2908                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2909                         } else {
2910                                 mod->sml_nvalues = NULL;
2911                         }
2912                         j = 0;
2913                         for ( i = 0; i < o; i++ ) {
2914                                 if ( !dels[i] ) continue;
2915                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2916                                 if ( mod->sml_nvalues ) {
2917                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2918                                 }
2919                                 j++;
2920                         }
2921                         BER_BVZERO( &mod->sml_values[j] );
2922                         if ( mod->sml_nvalues ) {
2923                                 BER_BVZERO( &mod->sml_nvalues[j] );
2924                         }
2925                         *modtail = mod;
2926                         modtail = &mod->sml_next;
2927                         i = j;
2928                 }
2929                 op->o_tmpfree( dels, op->o_tmpmemctx );
2930                 /* some values were added */
2931                 if ( nn && no < o ) {
2932                         mod = ch_malloc( sizeof( Modifications ) );
2933                         mod->sml_op = LDAP_MOD_ADD;
2934                         mod->sml_flags = 0;
2935                         mod->sml_desc = old->a_desc;
2936                         mod->sml_type = mod->sml_desc->ad_cname;
2937                         mod->sml_numvals = nn;
2938                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2939                         if ( old->a_vals != old->a_nvals ) {
2940                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2941                         } else {
2942                                 mod->sml_nvalues = NULL;
2943                         }
2944                         j = 0;
2945                         for ( i = 0; i < n; i++ ) {
2946                                 if ( !adds[i] ) continue;
2947                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2948                                 if ( mod->sml_nvalues ) {
2949                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2950                                 }
2951                                 j++;
2952                         }
2953                         BER_BVZERO( &mod->sml_values[j] );
2954                         if ( mod->sml_nvalues ) {
2955                                 BER_BVZERO( &mod->sml_nvalues[j] );
2956                         }
2957                         *modtail = mod;
2958                         modtail = &mod->sml_next;
2959                         i = j;
2960                 }
2961                 op->o_tmpfree( adds, op->o_tmpmemctx );
2962         } else {
2963                 /* new attr, just use the new mod */
2964                 i = 0;
2965                 j = 1;
2966         }
2967         /* advance to next element */
2968         mod = **mcur;
2969         if ( mod ) {
2970                 if ( i != j ) {
2971                         **mcur = mod->sml_next;
2972                         *modtail = mod;
2973                         modtail = &mod->sml_next;
2974                 } else {
2975                         *mcur = &mod->sml_next;
2976                 }
2977         }
2978         *mret = modtail;
2979 }
2980
2981 static int
2982 dn_callback(
2983         Operation*      op,
2984         SlapReply*      rs )
2985 {
2986         dninfo *dni = op->o_callback->sc_private;
2987
2988         if ( rs->sr_type == REP_SEARCH ) {
2989                 if ( !BER_BVISNULL( &dni->dn ) ) {
2990                         Debug( LDAP_DEBUG_ANY,
2991                                 "dn_callback : consistency error - "
2992                                 "entryUUID is not unique\n", 0, 0, 0 );
2993                 } else {
2994                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2995                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2996                         /* If there is a new entry, see if it differs from the old.
2997                          * We compare the non-normalized values so that cosmetic changes
2998                          * in the provider are always propagated.
2999                          */
3000                         if ( dni->new_entry ) {
3001                                 Modifications **modtail, **ml;
3002                                 Attribute *old, *new;
3003                                 int is_ctx;
3004
3005                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3006                                         &op->o_bd->be_nsuffix[0] );
3007
3008                                 /* Did the DN change?
3009                                  */
3010                                 if ( !dn_match( &rs->sr_entry->e_name,
3011                                                 &dni->new_entry->e_name ) )
3012                                 {
3013                                         struct berval oldRDN, oldVal;
3014                                         AttributeDescription *ad = NULL;
3015                                         Attribute *a;
3016
3017                                         dni->renamed = 1;
3018                                         /* See if the oldRDN was deleted */
3019                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3020                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3021                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3022                                                 oldRDN.bv_val );
3023                                         oldRDN.bv_len -= oldVal.bv_len + 2;
3024                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3025                                         a = attr_find( dni->new_entry->e_attrs, ad );
3026                                         if ( !a || attr_valfind( a,
3027                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3028                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3029                                                 SLAP_MR_VALUE_OF_SYNTAX,
3030                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3031                                         {
3032                                                 dni->delOldRDN = 1;
3033                                         }
3034                                         /* OK, this was just a modDN, we're done */
3035                                         return LDAP_SUCCESS;
3036                                 }
3037
3038                                 modtail = &dni->mods;
3039                                 ml = dni->modlist;
3040
3041                                 /* Make sure new entry is actually newer than old entry */
3042                                 old = attr_find( rs->sr_entry->e_attrs,
3043                                         slap_schema.si_ad_entryCSN );
3044                                 new = attr_find( dni->new_entry->e_attrs,
3045                                         slap_schema.si_ad_entryCSN );
3046                                 if ( new && old ) {
3047                                         int rc, len = old->a_vals[0].bv_len;
3048                                         if ( len > new->a_vals[0].bv_len )
3049                                                 len = new->a_vals[0].bv_len;
3050                                         rc = memcmp( old->a_vals[0].bv_val,
3051                                                 new->a_vals[0].bv_val, len );
3052                                         if ( rc > 0 ) {
3053                                                 Debug( LDAP_DEBUG_SYNC,
3054                                                         "dn_callback : new entry is older than ours "
3055                                                         "%s ours %s, new %s\n",
3056                                                         rs->sr_entry->e_name.bv_val,
3057                                                         old->a_vals[0].bv_val,
3058                                                         new->a_vals[0].bv_val );
3059                                                 return LDAP_SUCCESS;
3060                                         } else if ( rc == 0 ) {
3061                                                 Debug( LDAP_DEBUG_SYNC,
3062                                                         "dn_callback : entries have identical CSN "
3063                                                         "%s %s\n",
3064                                                         rs->sr_entry->e_name.bv_val,
3065                                                         old->a_vals[0].bv_val, 0 );
3066                                                 return LDAP_SUCCESS;
3067                                         }
3068                                 }
3069
3070                                 /* We assume that attributes are saved in the same order
3071                                  * in the remote and local databases. So if we walk through
3072                                  * the attributeDescriptions one by one they should match in
3073                                  * lock step. If not, look for an add or delete.
3074                                  */
3075                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3076                                                 old && new; )
3077                                 {
3078                                         /* If we've seen this before, use its mod now */
3079                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3080                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3081                                                 new = new->a_next;
3082                                                 continue;
3083                                         }
3084                                         /* Skip contextCSN */
3085                                         if ( is_ctx && old->a_desc ==
3086                                                 slap_schema.si_ad_contextCSN ) {
3087                                                 old = old->a_next;
3088                                                 continue;
3089                                         }
3090
3091                                         if ( old->a_desc != new->a_desc ) {
3092                                                 Modifications *mod;
3093                                                 Attribute *tmp;
3094
3095                                                 /* If it's just been re-added later,
3096                                                  * remember that we've seen it.
3097                                                  */
3098                                                 tmp = attr_find( new, old->a_desc );
3099                                                 if ( tmp ) {
3100                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3101                                                 } else {
3102                                                         /* If it's a new attribute, pull it in.
3103                                                          */
3104                                                         tmp = attr_find( old, new->a_desc );
3105                                                         if ( !tmp ) {
3106                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3107                                                                 new = new->a_next;
3108                                                                 continue;
3109                                                         }
3110                                                         /* Delete old attr */
3111                                                         mod = ch_malloc( sizeof( Modifications ) );
3112                                                         mod->sml_op = LDAP_MOD_DELETE;
3113                                                         mod->sml_flags = 0;
3114                                                         mod->sml_desc = old->a_desc;
3115                                                         mod->sml_type = mod->sml_desc->ad_cname;
3116                                                         mod->sml_numvals = 0;
3117                                                         mod->sml_values = NULL;
3118                                                         mod->sml_nvalues = NULL;
3119                                                         *modtail = mod;
3120                                                         modtail = &mod->sml_next;
3121                                                 }
3122                                                 old = old->a_next;
3123                                                 continue;
3124                                         }
3125                                         /* kludge - always update modifiersName so that it
3126                                          * stays co-located with the other mod opattrs. But only
3127                                          * if we know there are other valid mods.
3128                                          */
3129                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3130                                                 dni->mods )
3131                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3132                                         else
3133                                                 attr_cmp( op, old, new, &modtail, &ml );
3134                                         new = new->a_next;
3135                                         old = old->a_next;
3136                                 }
3137                                 *modtail = *ml;
3138                                 *ml = NULL;
3139                         }
3140                 }
3141         } else if ( rs->sr_type == REP_RESULT ) {
3142                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3143                         Debug( LDAP_DEBUG_ANY,
3144                                 "dn_callback : consistency error - "
3145                                 "entryUUID is not unique\n", 0, 0, 0 );
3146                 }
3147         }
3148
3149         return LDAP_SUCCESS;
3150 }
3151
3152 static int
3153 nonpresent_callback(
3154         Operation*      op,
3155         SlapReply*      rs )
3156 {
3157         syncinfo_t *si = op->o_callback->sc_private;
3158         Attribute *a;
3159         int count = 0;
3160         struct berval* present_uuid = NULL;
3161         struct nonpresent_entry *np_entry;
3162
3163         if ( rs->sr_type == REP_RESULT ) {
3164                 count = avl_free( si->si_presentlist, ch_free );
3165                 si->si_presentlist = NULL;
3166
3167         } else if ( rs->sr_type == REP_SEARCH ) {
3168                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3169                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3170
3171                         if ( a ) {
3172                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3173                                         syncuuid_cmp );
3174                         }
3175
3176                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3177                                 char buf[sizeof("rid=999 not")];
3178
3179                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3180                                         present_uuid ? "got" : "not" );
3181
3182                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3183                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3184                         }
3185
3186                         if ( a == NULL ) return 0;
3187                 }
3188
3189                 if ( present_uuid == NULL ) {
3190                         np_entry = (struct nonpresent_entry *)
3191                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3192                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3193                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3194                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3195
3196                 } else {
3197                         avl_delete( &si->si_presentlist,
3198                                 &a->a_nvals[0], syncuuid_cmp );
3199                         ch_free( present_uuid );
3200                 }
3201         }
3202         return LDAP_SUCCESS;
3203 }
3204
3205 static int
3206 null_callback(
3207         Operation*      op,
3208         SlapReply*      rs )
3209 {
3210         if ( rs->sr_err != LDAP_SUCCESS &&
3211                 rs->sr_err != LDAP_REFERRAL &&
3212                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3213                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3214                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3215         {
3216                 Debug( LDAP_DEBUG_ANY,
3217                         "null_callback : error code 0x%x\n",
3218                         rs->sr_err, 0, 0 );
3219         }
3220         return LDAP_SUCCESS;
3221 }
3222
3223 static struct berval *
3224 slap_uuidstr_from_normalized(
3225         struct berval* uuidstr,
3226         struct berval* normalized,
3227         void *ctx )
3228 {
3229 #if 0
3230         struct berval *new;
3231         unsigned char nibble;
3232         int i, d = 0;
3233
3234         if ( normalized == NULL ) return NULL;
3235         if ( normalized->bv_len != 16 ) return NULL;
3236
3237         if ( uuidstr ) {
3238                 new = uuidstr;
3239         } else {
3240                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3241                 if ( new == NULL ) {
3242                         return NULL;
3243                 }
3244         }
3245
3246         new->bv_len = 36;
3247
3248         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3249                 if ( new != uuidstr ) {
3250                         slap_sl_free( new, ctx );
3251                 }
3252                 return NULL;
3253         }
3254
3255         for ( i = 0; i < 16; i++ ) {
3256                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3257                         new->bv_val[(i<<1)+d] = '-';
3258                         d += 1;
3259                 }
3260
3261                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3262                 if ( nibble < 10 ) {
3263                         new->bv_val[(i<<1)+d] = nibble + '0';
3264                 } else {
3265                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3266                 }
3267
3268                 nibble = (normalized->bv_val[i]) & 0xF;
3269                 if ( nibble < 10 ) {
3270                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3271                 } else {
3272                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3273                 }
3274         }
3275
3276         new->bv_val[new->bv_len] = '\0';
3277         return new;
3278 #endif
3279
3280         struct berval   *new;
3281         int             rc = 0;
3282
3283         if ( normalized == NULL ) return NULL;
3284         if ( normalized->bv_len != 16 ) return NULL;
3285
3286         if ( uuidstr ) {
3287                 new = uuidstr;
3288
3289         } else {
3290                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3291                 if ( new == NULL ) {
3292                         return NULL;
3293                 }
3294         }
3295
3296         new->bv_len = 36;
3297
3298         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3299                 rc = 1;
3300                 goto done;
3301         }
3302
3303         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3304                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3305
3306 done:;
3307         if ( rc == -1 ) {
3308                 if ( new != NULL ) {
3309                         if ( new->bv_val != NULL ) {
3310                                 slap_sl_free( new->bv_val, ctx );
3311                         }
3312
3313                         if ( new != uuidstr ) {
3314                                 slap_sl_free( new, ctx );
3315                         }
3316                 }
3317                 new = NULL;
3318
3319         } else {
3320                 new->bv_len = rc;
3321         }
3322
3323         return new;
3324 }
3325
3326 static int
3327 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3328 {
3329         const struct berval *uuid1 = v_uuid1;
3330         const struct berval *uuid2 = v_uuid2;
3331         int rc = uuid1->bv_len - uuid2->bv_len;
3332         if ( rc ) return rc;
3333         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3334 }
3335
3336 void
3337 syncinfo_free( syncinfo_t *sie, int free_all )
3338 {
3339         syncinfo_t *si_next;
3340
3341         if ( free_all && sie->si_cookieState ) {
3342                 ch_free( sie->si_cookieState->cs_sids );
3343                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3344                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3345                 ch_free( sie->si_cookieState );
3346         }
3347         do {
3348                 si_next = sie->si_next;
3349
3350                 if ( sie->si_ld ) {
3351                         if ( sie->si_conn ) {
3352                                 connection_client_stop( sie->si_conn );
3353                                 sie->si_conn = NULL;
3354                         }
3355                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3356                 }
3357
3358                 /* re-fetch it, in case it was already removed */
3359                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3360                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3361                 if ( sie->si_re ) {
3362                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3363                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3364                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3365                 }
3366
3367                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3368                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3369
3370                 bindconf_free( &sie->si_bindconf );
3371
3372                 if ( sie->si_filterstr.bv_val ) {
3373                         ch_free( sie->si_filterstr.bv_val );
3374                 }
3375                 if ( sie->si_logfilterstr.bv_val ) {
3376                         ch_free( sie->si_logfilterstr.bv_val );
3377                 }
3378                 if ( sie->si_base.bv_val ) {
3379                         ch_free( sie->si_base.bv_val );
3380                 }
3381                 if ( sie->si_logbase.bv_val ) {
3382                         ch_free( sie->si_logbase.bv_val );
3383                 }
3384                 if ( sie->si_attrs ) {
3385                         int i = 0;
3386                         while ( sie->si_attrs[i] != NULL ) {
3387                                 ch_free( sie->si_attrs[i] );
3388                                 i++;
3389                         }
3390                         ch_free( sie->si_attrs );
3391                 }
3392                 if ( sie->si_exattrs ) {
3393                         int i = 0;
3394                         while ( sie->si_exattrs[i] != NULL ) {
3395                                 ch_free( sie->si_exattrs[i] );
3396                                 i++;
3397                         }
3398                         ch_free( sie->si_exattrs );
3399                 }
3400                 if ( sie->si_anlist ) {
3401                         int i = 0;
3402                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3403                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3404                                 i++;
3405                         }
3406                         ch_free( sie->si_anlist );
3407                 }
3408                 if ( sie->si_exanlist ) {
3409                         int i = 0;
3410                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3411                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3412                                 i++;
3413                         }
3414                         ch_free( sie->si_exanlist );
3415                 }
3416                 if ( sie->si_retryinterval ) {
3417                         ch_free( sie->si_retryinterval );
3418                 }
3419                 if ( sie->si_retrynum ) {
3420                         ch_free( sie->si_retrynum );
3421                 }
3422                 if ( sie->si_retrynum_init ) {
3423                         ch_free( sie->si_retrynum_init );
3424                 }
3425                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3426                 if ( sie->si_presentlist ) {
3427                     avl_free( sie->si_presentlist, ch_free );
3428                 }
3429                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3430                         struct nonpresent_entry* npe;
3431                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3432                         LDAP_LIST_REMOVE( npe, npe_link );
3433                         if ( npe->npe_name ) {
3434                                 if ( npe->npe_name->bv_val ) {
3435                                         ch_free( npe->npe_name->bv_val );
3436                                 }
3437                                 ch_free( npe->npe_name );
3438                         }
3439                         if ( npe->npe_nname ) {
3440                                 if ( npe->npe_nname->bv_val ) {
3441                                         ch_free( npe->npe_nname->bv_val );
3442                                 }
3443                                 ch_free( npe->npe_nname );
3444                         }
3445                         ch_free( npe );
3446                 }
3447                 ch_free( sie );
3448                 sie = si_next;
3449         } while ( free_all && si_next );
3450 }
3451
3452
3453
3454 /* NOTE: used & documented in slapd.conf(5) */
3455 #define IDSTR                   "rid"
3456 #define PROVIDERSTR             "provider"
3457 #define SCHEMASTR               "schemachecking"
3458 #define FILTERSTR               "filter"
3459 #define SEARCHBASESTR           "searchbase"
3460 #define SCOPESTR                "scope"
3461 #define ATTRSONLYSTR            "attrsonly"
3462 #define ATTRSSTR                "attrs"
3463 #define TYPESTR                 "type"
3464 #define INTERVALSTR             "interval"
3465 #define RETRYSTR                "retry"
3466 #define SLIMITSTR               "sizelimit"
3467 #define TLIMITSTR               "timelimit"
3468 #define SYNCDATASTR             "syncdata"
3469 #define LOGBASESTR              "logbase"
3470 #define LOGFILTERSTR    "logfilter"
3471
3472 /* FIXME: undocumented */
3473 #define EXATTRSSTR              "exattrs"
3474 #define MANAGEDSAITSTR          "manageDSAit"
3475
3476 /* mandatory */
3477 #define GOT_ID                  0x0001
3478 #define GOT_PROVIDER    0x0002
3479 #define GOT_BASE                0x0004
3480
3481 /* check */
3482 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3483
3484 static struct {
3485         struct berval key;
3486         int val;
3487 } scopes[] = {
3488         { BER_BVC("base"), LDAP_SCOPE_BASE },
3489         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3490         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3491         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3492         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3493         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3494         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3495         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3496         { BER_BVNULL, 0 }
3497 };
3498
3499 static slap_verbmasks datamodes[] = {
3500         { BER_BVC("default"), SYNCDATA_DEFAULT },
3501         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3502         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3503         { BER_BVNULL, 0 }
3504 };
3505
3506 static int
3507 parse_syncrepl_line(
3508         ConfigArgs      *c,
3509         syncinfo_t      *si )
3510 {
3511         int     gots = 0;
3512         int     i;
3513         char    *val;
3514
3515         for ( i = 1; i < c->argc; i++ ) {
3516                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3517                                         STRLENOF( IDSTR "=" ) ) )
3518                 {
3519                         int tmp;
3520                         /* '\0' string terminator accounts for '=' */
3521                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3522                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3523                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3524                                         "Error: parse_syncrepl_line: "
3525                                         "unable to parse syncrepl id \"%s\"", val );
3526                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3527                                 return -1;
3528                         }
3529                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3530                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3531                                         "Error: parse_syncrepl_line: "
3532                                         "syncrepl id %d is out of range [0..4095]", tmp );
3533                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3534                                 return -1;
3535                         }
3536                         si->si_rid = tmp;
3537                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3538                         gots |= GOT_ID;
3539                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3540                                         STRLENOF( PROVIDERSTR "=" ) ) )
3541                 {
3542                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3543                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3544                         gots |= GOT_PROVIDER;
3545                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3546                                         STRLENOF( SCHEMASTR "=" ) ) )
3547                 {
3548                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3549                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3550                                 si->si_schemachecking = 1;
3551                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3552                                 si->si_schemachecking = 0;
3553                         } else {
3554                                 si->si_schemachecking = 1;
3555                         }
3556                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3557                                         STRLENOF( FILTERSTR "=" ) ) )
3558                 {
3559                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3560                         if ( si->si_filterstr.bv_val )
3561                                 ch_free( si->si_filterstr.bv_val );
3562                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3563                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3564                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3565                 {
3566                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3567                         if ( si->si_logfilterstr.bv_val )
3568                                 ch_free( si->si_logfilterstr.bv_val );
3569                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3570                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3571                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3572                 {
3573                         struct berval   bv;
3574                         int             rc;
3575
3576                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3577                         if ( si->si_base.bv_val ) {
3578                                 ch_free( si->si_base.bv_val );
3579                         }
3580                         ber_str2bv( val, 0, 0, &bv );
3581                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3582                         if ( rc != LDAP_SUCCESS ) {
3583                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3584                                         "Invalid base DN \"%s\": %d (%s)",
3585                                         val, rc, ldap_err2string( rc ) );
3586                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3587                                 return -1;
3588                         }
3589                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3590                                 ch_free( si->si_base.bv_val );
3591                                 BER_BVZERO( &si->si_base );
3592                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3593                                         "Base DN \"%s\" is not within the database naming context",
3594                                         val );
3595                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3596                                 return -1;
3597                         }
3598                         gots |= GOT_BASE;
3599                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3600                                         STRLENOF( LOGBASESTR "=" ) ) )
3601                 {
3602                         struct berval   bv;
3603                         int             rc;
3604
3605                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3606                         if ( si->si_logbase.bv_val ) {
3607                                 ch_free( si->si_logbase.bv_val );
3608                         }
3609                         ber_str2bv( val, 0, 0, &bv );
3610                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3611                         if ( rc != LDAP_SUCCESS ) {
3612                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3613                                         "Invalid logbase DN \"%s\": %d (%s)",
3614                                         val, rc, ldap_err2string( rc ) );
3615                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3616                                 return -1;
3617                         }
3618                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3619                                         STRLENOF( SCOPESTR "=" ) ) )
3620                 {
3621                         int j;
3622                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3623                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3624                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3625                                         si->si_scope = scopes[j].val;
3626                                         break;
3627                                 }
3628                         }
3629                         if ( BER_BVISNULL(&scopes[j].key) ) {
3630                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3631                                         "Error: parse_syncrepl_line: "
3632                                         "unknown scope \"%s\"", val);
3633                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3634                                 return -1;
3635                         }
3636                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3637                                         STRLENOF( ATTRSONLYSTR ) ) )
3638                 {
3639                         si->si_attrsonly = 1;
3640                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3641                                         STRLENOF( ATTRSSTR "=" ) ) )
3642                 {
3643                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3644                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3645                                 char *attr_fname;
3646                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3647                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3648                                 if ( si->si_anlist == NULL ) {
3649                                         ch_free( attr_fname );
3650                                         return -1;
3651                                 }
3652                                 si->si_anfile = attr_fname;
3653                         } else {
3654                                 char *str, *s, *next;
3655                                 const char *delimstr = " ,\t";
3656                                 str = ch_strdup( val );
3657                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3658                                                 s != NULL;
3659                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3660                                 {
3661                                         if ( strlen(s) == 1 && *s == '*' ) {
3662                                                 si->si_allattrs = 1;
3663                                                 val[ s - str ] = delimstr[0];
3664                                         }
3665                                         if ( strlen(s) == 1 && *s == '+' ) {
3666                                                 si->si_allopattrs = 1;
3667                                                 val [ s - str ] = delimstr[0];
3668                                         }
3669                                 }
3670                                 ch_free( str );
3671                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3672                                 if ( si->si_anlist == NULL ) {
3673                                         return -1;
3674                                 }
3675                         }
3676                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3677                                         STRLENOF( EXATTRSSTR "=" ) ) )
3678                 {
3679                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3680                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3681                                 char *attr_fname;
3682                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3683                                 si->si_exanlist = file2anlist(
3684                                         si->si_exanlist, attr_fname, " ,\t" );
3685                                 if ( si->si_exanlist == NULL ) {
3686                                         ch_free( attr_fname );
3687                                         return -1;
3688                                 }
3689                                 ch_free( attr_fname );
3690                         } else {
3691                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3692                                 if ( si->si_exanlist == NULL ) {
3693                                         return -1;
3694                                 }
3695                         }
3696                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3697                                         STRLENOF( TYPESTR "=" ) ) )
3698                 {
3699                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3700                         if ( !strncasecmp( val, "refreshOnly",
3701                                                 STRLENOF("refreshOnly") ) )
3702                         {
3703                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3704                         } else if ( !strncasecmp( val, "refreshAndPersist",
3705                                                 STRLENOF("refreshAndPersist") ) )
3706                         {
3707                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3708                                 si->si_interval = 60;
3709                         } else {
3710                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3711                                         "Error: parse_syncrepl_line: "
3712                                         "unknown sync type \"%s\"", val);
3713                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3714                                 return -1;
3715                         }
3716                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3717                                         STRLENOF( INTERVALSTR "=" ) ) )
3718                 {
3719                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3720                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3721                                 si->si_interval = 0;
3722                         } else if ( strchr( val, ':' ) != NULL ) {
3723                                 char *next, *ptr = val;
3724                                 int dd, hh, mm, ss;
3725
3726                                 dd = strtol( ptr, &next, 10 );
3727                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3728                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3729                                                 "Error: parse_syncrepl_line: "
3730                                                 "invalid interval \"%s\", unable to parse days", val );
3731                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3732                                         return -1;
3733                                 }
3734                                 ptr = next + 1;
3735                                 hh = strtol( ptr, &next, 10 );
3736                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3737                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3738                                                 "Error: parse_syncrepl_line: "
3739                                                 "invalid interval \"%s\", unable to parse hours", val );
3740                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3741                                         return -1;
3742                                 }
3743                                 ptr = next + 1;
3744                                 mm = strtol( ptr, &next, 10 );
3745                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3746                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3747                                                 "Error: parse_syncrepl_line: "
3748                                                 "invalid interval \"%s\", unable to parse minutes", val );
3749                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3750                                         return -1;
3751                                 }
3752                                 ptr = next + 1;
3753                                 ss = strtol( ptr, &next, 10 );
3754                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3755                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3756                                                 "Error: parse_syncrepl_line: "
3757                                                 "invalid interval \"%s\", unable to parse seconds", val );
3758                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3759                                         return -1;
3760                                 }
3761                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3762                         } else {
3763                                 unsigned long   t;
3764
3765                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3766                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3767                                                 "Error: parse_syncrepl_line: "
3768                                                 "invalid interval \"%s\"", val );
3769                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3770                                         return -1;
3771                                 }
3772                                 si->si_interval = (time_t)t;
3773                         }
3774                         if ( si->si_interval < 0 ) {
3775                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3776                                         "Error: parse_syncrepl_line: "
3777                                         "invalid interval \"%ld\"",
3778                                         (long) si->si_interval);
3779                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3780                                 return -1;
3781                         }
3782                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3783                                         STRLENOF( RETRYSTR "=" ) ) )
3784                 {
3785                         char **retry_list;
3786                         int j, k, n;
3787
3788                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3789                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3790                         retry_list[0] = NULL;
3791
3792                         slap_str2clist( &retry_list, val, " ,\t" );
3793
3794                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3795                         n = k / 2;
3796                         if ( k % 2 ) {
3797                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3798                                         "Error: incomplete syncrepl retry list" );
3799                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3800                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3801                                         ch_free( retry_list[k] );
3802                                 }
3803                                 ch_free( retry_list );
3804                                 return 1;
3805                         }
3806                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3807                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3808                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3809                         for ( j = 0; j < n; j++ ) {
3810                                 unsigned long   t;
3811                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3812                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3813                                                 "Error: invalid retry interval \"%s\" (#%d)",
3814                                                 retry_list[j*2], j );
3815                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3816                                         /* do some cleanup */
3817                                         return 1;
3818                                 }
3819                                 si->si_retryinterval[j] = (time_t)t;
3820                                 if ( *retry_list[j*2+1] == '+' ) {
3821                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3822                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3823                                         j++;
3824                                         break;
3825                                 } else {
3826                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3827                                                         || si->si_retrynum_init[j] <= 0 )
3828                                         {
3829                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3830                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3831                                                         retry_list[j*2+1], j );
3832                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3833                                                 /* do some cleanup */
3834                                                 return 1;
3835                                         }
3836                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3837                                                         || si->si_retrynum[j] <= 0 )
3838                                         {
3839                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3840                                                         "Error: invalid retry number \"%s\" (#%d)",
3841                                                         retry_list[j*2+1], j );
3842                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3843                                                 /* do some cleanup */
3844                                                 return 1;
3845                                         }
3846                                 }
3847                         }
3848                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3849                         si->si_retrynum[j] = RETRYNUM_TAIL;
3850                         si->si_retryinterval[j] = 0;
3851
3852                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3853                                 ch_free( retry_list[k] );
3854                         }
3855                         ch_free( retry_list );
3856                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3857                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3858                 {
3859                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3860                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3861                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3862                         {
3863                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3864                                         "invalid manageDSAit value \"%s\".\n",
3865                                         val );
3866                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3867                                 return 1;
3868                         }
3869                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3870                                         STRLENOF( SLIMITSTR "=") ) )
3871                 {
3872                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3873                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3874                                 si->si_slimit = 0;
3875
3876                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3877                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3878                                         "invalid size limit value \"%s\".\n",
3879                                         val );
3880                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3881                                 return 1;
3882                         }
3883                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3884                                         STRLENOF( TLIMITSTR "=" ) ) )
3885                 {
3886                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3887                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3888                                 si->si_tlimit = 0;
3889
3890                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3891                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3892                                         "invalid time limit value \"%s\".\n",
3893                                         val );
3894                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3895                                 return 1;
3896                         }
3897                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3898                                         STRLENOF( SYNCDATASTR "=" ) ) )
3899                 {
3900                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3901                         si->si_syncdata = verb_to_mask( val, datamodes );
3902                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3903                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3904                                 "Error: parse_syncrepl_line: "
3905                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3906                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3907                         return -1;
3908                 }
3909         }
3910
3911         if ( gots != GOT_ALL ) {
3912                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3913                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3914                         gots & GOT_ID ? "" : " "IDSTR,
3915                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3916                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3917                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3918                 return -1;
3919         }
3920
3921         return 0;
3922 }
3923
3924 static int
3925 add_syncrepl(
3926         ConfigArgs *c )
3927 {
3928         syncinfo_t *si;
3929         int     rc = 0;
3930
3931         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3932                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3933                         "operations required for syncrepl", c->be->be_type );
3934                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3935                 return 1;
3936         }
3937         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3938                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3939                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3940                 return 1;
3941         }
3942         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3943
3944         if ( si == NULL ) {
3945                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3946                 return 1;
3947         }
3948
3949         si->si_bindconf.sb_tls = SB_TLS_OFF;
3950         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3951         si->si_schemachecking = 0;
3952         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3953                 &si->si_filterstr );
3954         si->si_base.bv_val = NULL;
3955         si->si_scope = LDAP_SCOPE_SUBTREE;
3956         si->si_attrsonly = 0;
3957         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3958         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3959         si->si_attrs = NULL;
3960         si->si_allattrs = 0;
3961         si->si_allopattrs = 0;
3962         si->si_exattrs = NULL;
3963         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3964         si->si_interval = 86400;
3965         si->si_retryinterval = NULL;
3966         si->si_retrynum_init = NULL;
3967         si->si_retrynum = NULL;
3968         si->si_manageDSAit = 0;
3969         si->si_tlimit = 0;
3970         si->si_slimit = 0;
3971
3972         si->si_presentlist = NULL;
3973         LDAP_LIST_INIT( &si->si_nonpresentlist );
3974         ldap_pvt_thread_mutex_init( &si->si_mutex );
3975
3976         rc = parse_syncrepl_line( c, si );
3977
3978         if ( rc == 0 ) {
3979                 /* Must be LDAPv3 because we need controls */
3980                 switch ( si->si_bindconf.sb_version ) {
3981                 case 0:
3982                         /* not explicitly set */
3983                         si->si_bindconf.sb_version = LDAP_VERSION3;
3984                         break;
3985                 case 3:
3986                         /* explicitly set */
3987                         break;
3988                 default:
3989                         Debug( LDAP_DEBUG_ANY,
3990                                 "version %d incompatible with syncrepl\n",
3991                                 si->si_bindconf.sb_version, 0, 0 );
3992                         syncinfo_free( si, 0 );
3993                         return 1;
3994                 }
3995
3996                 si->si_be = c->be;
3997                 if ( slapMode & SLAP_SERVER_MODE ) {
3998                         Listener **l = slapd_get_listeners();
3999                         int isMe = 0;
4000
4001                         /* check if URL points to current server. If so, ignore
4002                          * this configuration. We require an exact match. Just
4003                          * in case they really want to do this, they can vary
4004                          * the case of the URL to allow it.
4005                          */
4006                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4007                                 int i;
4008                                 for ( i=0; l[i]; i++ ) {
4009                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4010                                                 isMe = 1;
4011                                                 break;
4012                                         }
4013                                 }
4014                         }
4015
4016                         if ( !isMe ) {
4017                                 init_syncrepl( si );
4018                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4019                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4020                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4021                                         si->si_ridtxt );
4022                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4023                                 if ( si->si_re )
4024                                         rc = config_sync_shadow( c ) ? -1 : 0;
4025                                 else
4026                                         rc = -1;
4027                         }
4028                 } else {
4029                         /* mirrormode still needs to see this flag in tool mode */
4030                         rc = config_sync_shadow( c ) ? -1 : 0;
4031                 }
4032         }
4033
4034 #ifdef HAVE_TLS
4035         /* Use main slapd defaults */
4036         bindconf_tls_defaults( &si->si_bindconf );
4037 #endif
4038         if ( rc < 0 ) {
4039                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4040                 syncinfo_free( si, 0 );
4041                 return 1;
4042         } else {
4043                 Debug( LDAP_DEBUG_CONFIG,
4044                         "Config: ** successfully added syncrepl \"%s\"\n",
4045                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4046                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4047                 if ( !si->si_schemachecking ) {
4048                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
4049                 }
4050                 if ( c->be->be_syncinfo ) {
4051                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4052                 } else {
4053                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4054                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4055                 }
4056                 si->si_next = c->be->be_syncinfo;
4057                 c->be->be_syncinfo = si;
4058                 return 0;
4059         }
4060 }
4061
4062 static void
4063 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4064 {
4065         struct berval bc, uri;
4066         char buf[BUFSIZ*2], *ptr;
4067         int i;
4068
4069 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
4070
4071         BER_BVZERO( bv );
4072
4073         /* temporarily inhibit bindconf from printing URI */
4074         uri = si->si_bindconf.sb_uri;
4075         BER_BVZERO( &si->si_bindconf.sb_uri );
4076         si->si_bindconf.sb_version = 0;
4077         bindconf_unparse( &si->si_bindconf, &bc );
4078         si->si_bindconf.sb_uri = uri;
4079         si->si_bindconf.sb_version = LDAP_VERSION3;
4080
4081         ptr = buf;
4082         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4083         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4084                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4085         if ( ptr - buf >= sizeof( buf ) ) return;
4086         if ( !BER_BVISNULL( &bc ) ) {
4087                 if ( WHATSLEFT <= bc.bv_len ) {
4088                         free( bc.bv_val );
4089                         return;
4090                 }
4091                 ptr = lutil_strcopy( ptr, bc.bv_val );
4092                 free( bc.bv_val );
4093         }
4094         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4095                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4096                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4097                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4098                 *ptr++ = '"';
4099         }
4100         if ( !BER_BVISNULL( &si->si_base ) ) {
4101                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4102                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4103                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4104                 *ptr++ = '"';
4105         }
4106         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4107                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4108                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4109                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4110                 *ptr++ = '"';
4111         }
4112         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4113                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4114                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4115                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4116                 *ptr++ = '"';
4117         }
4118         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4119                 if ( si->si_scope == scopes[i].val ) {
4120                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4121                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4122                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4123                         break;
4124                 }
4125         }
4126         if ( si->si_attrsonly ) {
4127                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4128                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4129         }
4130         if ( si->si_anfile ) {
4131                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4132                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4133                 ptr = lutil_strcopy( ptr, si->si_anfile );
4134                 *ptr++ = '"';
4135         } else if ( si->si_allattrs || si->si_allopattrs ||
4136                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4137         {
4138                 char *old;
4139
4140                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4141                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4142                 old = ptr;
4143                 /* FIXME: add check for overflow */
4144                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4145                 if ( si->si_allattrs ) {
4146                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4147                         if ( old != ptr ) *ptr++ = ',';
4148                         *ptr++ = '*';
4149                 }
4150                 if ( si->si_allopattrs ) {
4151                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4152                         if ( old != ptr ) *ptr++ = ',';
4153                         *ptr++ = '+';
4154                 }
4155                 *ptr++ = '"';
4156         }
4157         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4158                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4159                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4160                 /* FIXME: add check for overflow */
4161                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4162         }
4163         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4164         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4165         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4166
4167         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4168         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4169         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4170                 "refreshAndPersist" : "refreshOnly" );
4171
4172         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4173                 int dd, hh, mm, ss;
4174
4175                 dd = si->si_interval;
4176                 ss = dd % 60;
4177                 dd /= 60;
4178                 mm = dd % 60;
4179                 dd /= 60;
4180                 hh = dd % 24;
4181                 dd /= 24;
4182                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4183                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4184                 if ( ptr - buf >= sizeof( buf ) ) return;
4185         } else if ( si->si_retryinterval ) {
4186                 int space=0;
4187                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4188                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4189                 for (i=0; si->si_retryinterval[i]; i++) {
4190                         if ( space ) *ptr++ = ' ';
4191                         space = 1;
4192                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4193                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4194                                 *ptr++ = '+';
4195                         else
4196                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4197                 }
4198                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4199                 *ptr++ = '"';
4200         }
4201
4202         if ( si->si_slimit ) {
4203                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4204                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4205                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4206         }
4207
4208         if ( si->si_tlimit ) {
4209                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4210                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4211                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4212         }
4213
4214         if ( si->si_syncdata ) {
4215                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4216                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4217                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4218                         ptr = lutil_strcopy( ptr, bc.bv_val );
4219                 }
4220         }
4221         bc.bv_len = ptr - buf;
4222         bc.bv_val = buf;
4223         ber_dupbv( bv, &bc );
4224 }
4225
4226 int
4227 syncrepl_config( ConfigArgs *c )
4228 {
4229         if (c->op == SLAP_CONFIG_EMIT) {
4230                 if ( c->be->be_syncinfo ) {
4231                         struct berval bv;
4232                         syncinfo_t *si;
4233
4234                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4235                                 syncrepl_unparse( si, &bv );
4236                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4237                         }
4238                         return 0;
4239                 }
4240                 return 1;
4241         } else if ( c->op == LDAP_MOD_DELETE ) {
4242                 cookie_state *cs = NULL;
4243                 if ( c->be->be_syncinfo ) {
4244                         syncinfo_t *si, **sip;
4245                         int i;
4246
4247                         cs = c->be->be_syncinfo->si_cookieState;
4248                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4249                                 si = *sip;
4250                                 if ( c->valx == -1 || i == c->valx ) {
4251                                         int isrunning = 0;
4252                                         *sip = si->si_next;
4253                                         /* If the task is currently active, we have to leave
4254                                          * it running. It will exit on its own. This will only
4255                                          * happen when running on the cn=config DB.
4256                                          */
4257                                         if ( si->si_re ) {
4258                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4259                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4260                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4261                                         }
4262                                         if ( si->si_re && isrunning ) {
4263                                                 si->si_ctype = 0;
4264                                         } else {
4265                                                 syncinfo_free( si, 0 );
4266                                         }
4267                                         if ( i == c->valx )
4268                                                 break;
4269                                 } else {
4270                                         sip = &si->si_next;
4271                                 }
4272                         }
4273                 }
4274                 if ( !c->be->be_syncinfo ) {
4275                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4276                         if ( cs ) {
4277                                 ber_bvarray_free( cs->cs_vals );
4278                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4279                                 ch_free( cs );
4280                         }
4281                 }
4282                 return 0;
4283         }
4284         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4285                 Debug(LDAP_DEBUG_ANY, "%s: "
4286                         "syncrepl: database already shadowed.\n",
4287                         c->log, 0, 0);
4288                 return(1);
4289         } else {
4290                 return add_syncrepl( c );
4291         }
4292 }