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