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

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