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

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