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