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