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 2003-2009 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003-2008 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         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[3], *ctrls[4];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 421         BER_BVZERO( &c[1].ldctl_value );
 422         c[1].ldctl_iscritical = 1;
 423         ctrls[1] = &c[1];
 424
 425         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 426                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 427                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 428                 c[2].ldctl_iscritical = 1;
 429                 ctrls[2] = &c[2];
 430                 ctrls[3] = NULL;
 431         } else {
 432                 ctrls[2] = NULL;
 433         }
 434
 435         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 436                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 437         ber_free_buf( ber );
 438         return rc;
 439 }
 440
 441 static int
 442 check_syncprov(
 443         Operation *op,
 444         syncinfo_t *si )
 445 {
 446         AttributeName at[2];
 447         Attribute a = {0};
 448         Entry e = {0};
 449         SlapReply rs = {0};
 450         int i, j, changed = 0;
 451
 452         /* Look for contextCSN from syncprov overlay. If
 453          * there's no overlay, this will be a no-op. That means
 454          * this is a pure consumer, so local changes will not be
 455          * allowed, and all changes will already be reflected in
 456          * the cookieState.
 457          */
 458         a.a_desc = slap_schema.si_ad_contextCSN;
 459         e.e_attrs = &a;
 460         e.e_name = op->o_bd->be_suffix[0];
 461         e.e_nname = op->o_bd->be_nsuffix[0];
 462         at[0].an_name = a.a_desc->ad_cname;
 463         at[0].an_desc = a.a_desc;
 464         BER_BVZERO( &at[1].an_name );
 465         rs.sr_entry = &e;
 466         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 467         rs.sr_attrs = at;
 468         op->o_req_dn = e.e_name;
 469         op->o_req_ndn = e.e_nname;
 470
 471         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 472         i = backend_operational( op, &rs );
 473         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 474                 int num = a.a_numvals;
 475                 /* check for differences */
 476                 if ( num != si->si_cookieState->cs_num ) {
 477                         changed = 1;
 478                 } else {
 479                         for ( i=0; i<num; i++ ) {
 480                                 if ( ber_bvcmp( &a.a_nvals[i],
 481                                         &si->si_cookieState->cs_vals[i] )) {
 482                                         changed = 1;
 483                                         break;
 484                                 }
 485                         }
 486                 }
 487                 if ( changed ) {
 488                         ber_bvarray_free( si->si_cookieState->cs_vals );
 489                         ch_free( si->si_cookieState->cs_sids );
 490                         si->si_cookieState->cs_num = num;
 491                         si->si_cookieState->cs_vals = a.a_nvals;
 492                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 493                                 num, NULL );
 494                         si->si_cookieState->cs_age++;
 495                 } else {
 496                         ber_bvarray_free( a.a_nvals );
 497                 }
 498                 ber_bvarray_free( a.a_vals );
 499         }
 500         /* See if the cookieState has changed due to anything outside
 501          * this particular consumer. That includes other consumers in
 502          * the same context, or local changes detected above.
 503          */
 504         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 505                 si->si_cookieState->cs_age ) {
 506                 if ( !si->si_syncCookie.numcsns ) {
 507                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 508                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 509                                 si->si_cookieState->cs_vals, NULL );
 510                         changed = 1;
 511                 } else {
 512                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 513                                 /* bogus, just dup everything */
 514                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 515                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 516                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 517                                                 si->si_cookieState->cs_vals, NULL );
 518                                         changed = 1;
 519                                         break;
 520                                 }
 521                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 522                                         if ( si->si_syncCookie.sids[i] !=
 523                                                 si->si_cookieState->cs_sids[j] )
 524                                                 continue;
 525                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 526                                                 &si->si_cookieState->cs_vals[j] ))
 527                                                 break;
 528                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 529                                                 &si->si_cookieState->cs_vals[j] );
 530                                         changed = 1;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535         }
 536         if ( changed ) {
 537                 si->si_cookieAge = si->si_cookieState->cs_age;
 538                 ch_free( si->si_syncCookie.octet_str.bv_val );
 539                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 540                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 541                         si->si_syncCookie.sid );
 542         }
 543         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 544         return changed;
 545 }
 546
 547 static int
 548 do_syncrep1(
 549         Operation *op,
 550         syncinfo_t *si )
 551 {
 552         int     rc;
 553         int cmdline_cookie_found = 0;
 554
 555         struct sync_cookie      *sc = NULL;
 556 #ifdef HAVE_TLS
 557         void    *ssl;
 558 #endif
 559
 560         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 561         if ( rc != LDAP_SUCCESS ) {
 562                 goto done;
 563         }
 564         op->o_protocol = LDAP_VERSION3;
 565
 566         /* Set SSF to strongest of TLS, SASL SSFs */
 567         op->o_sasl_ssf = 0;
 568         op->o_tls_ssf = 0;
 569         op->o_transport_ssf = 0;
 570 #ifdef HAVE_TLS
 571         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 572                 == LDAP_SUCCESS && ssl != NULL )
 573         {
 574                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 575         }
 576 #endif /* HAVE_TLS */
 577         {
 578                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 579                                                   to use sasl_ssf_t but currently uses ber_len_t */
 580                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 581                 op->o_sasl_ssf = ssf;
 582         }
 583         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 584                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 585
 586         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 587
 588         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 589         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 590
 591         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 592
 593         si->si_syncCookie.rid = si->si_rid;
 594
 595         /* whenever there are multiple data sources possible, advertise sid */
 596         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 597                 slap_serverID : -1;
 598
 599         /* We've just started up, or the remote server hasn't sent us
 600          * any meaningful state.
 601          */
 602         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 603                 int i;
 604
 605                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 606                         if ( si->si_rid == sc->rid ) {
 607                                 cmdline_cookie_found = 1;
 608                                 break;
 609                         }
 610                 }
 611
 612                 if ( cmdline_cookie_found ) {
 613                         /* cookie is supplied in the command line */
 614
 615                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 616
 617                         /* ctxcsn wasn't parsed yet, do it now */
 618                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 619                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 620                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 621                         slap_sync_cookie_free( sc, 1 );
 622                 } else {
 623                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 624                         if ( !si->si_cookieState->cs_num ) {
 625                                 /* get contextCSN shadow replica from database */
 626                                 BerVarray csn = NULL;
 627                                 void *ctx = op->o_tmpmemctx;
 628
 629                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 630                                 op->o_req_dn = op->o_req_ndn;
 631
 632                                 /* try to read stored contextCSN */
 633                                 op->o_tmpmemctx = NULL;
 634                                 backend_attribute( op, NULL, &op->o_req_ndn,
 635                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 636                                 op->o_tmpmemctx = ctx;
 637                                 if ( csn ) {
 638                                         si->si_cookieState->cs_vals = csn;
 639                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 640                                         si->si_cookieState->cs_num = i;
 641                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 642                                 }
 643                         }
 644                         if ( si->si_cookieState->cs_num ) {
 645                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 646                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 647                                         si->si_cookieState->cs_vals, NULL )) {
 648                                         rc = LDAP_NO_MEMORY;
 649                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 650                                         goto done;
 651                                 }
 652                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 653                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 654                                         sizeof(int) );
 655                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 656                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 657                         }
 658                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 659                 }
 660
 661                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 662                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 663                         si->si_syncCookie.sid );
 664         } else {
 665                 /* Look for contextCSN from syncprov overlay. */
 666                 check_syncprov( op, si );
 667         }
 668
 669         si->si_refreshDone = 0;
 670
 671         rc = ldap_sync_search( si, op->o_tmpmemctx );
 672
 673         if( rc != LDAP_SUCCESS ) {
 674                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 675                         "ldap_search_ext: %s (%d)\n",
 676                         si->si_ridtxt, ldap_err2string( rc ), rc );
 677         }
 678
 679 done:
 680         if ( rc ) {
 681                 if ( si->si_ld ) {
 682                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 683                         si->si_ld = NULL;
 684                 }
 685         }
 686
 687         return rc;
 688 }
 689
 690 static int
 691 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 692 {
 693         int i, j, match = 0;
 694         const char *text;
 695
 696         *which = 0;
 697
 698         if ( sc1->numcsns < sc2->numcsns ) {
 699                 *which = sc1->numcsns;
 700                 return -1;
 701         }
 702
 703         for (j=0; j<sc2->numcsns; j++) {
 704                 for (i=0; i<sc1->numcsns; i++) {
 705                         if ( sc1->sids[i] != sc2->sids[j] )
 706                                 continue;
 707                         value_match( &match, slap_schema.si_ad_entryCSN,
 708                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 709                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 710                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 711                         if ( match < 0 ) {
 712                                 *which = j;
 713                                 return match;
 714                         }
 715                         break;
 716                 }
 717                 if ( i == sc1->numcsns ) {
 718                         /* sc2 has a sid sc1 lacks */
 719                         *which = j;
 720                         return -1;
 721                 }
 722         }
 723         return match;
 724 }
 725
 726 #define SYNC_PAUSED     -3
 727
 728 static int
 729 do_syncrep2(
 730         Operation *op,
 731         syncinfo_t *si )
 732 {
 733         LDAPControl     **rctrls = NULL;
 734
 735         BerElementBuffer berbuf;
 736         BerElement      *ber = (BerElement *)&berbuf;
 737
 738         LDAPMessage     *msg = NULL;
 739
 740         char            *retoid = NULL;
 741         struct berval   *retdata = NULL;
 742
 743         Entry           *entry = NULL;
 744
 745         int             syncstate;
 746         struct berval   syncUUID = BER_BVNULL;
 747         struct sync_cookie      syncCookie = { NULL };
 748         struct sync_cookie      syncCookie_req = { NULL };
 749         struct berval           cookie = BER_BVNULL;
 750
 751         int             rc,
 752                         err = LDAP_SUCCESS;
 753         ber_len_t       len;
 754
 755         struct berval   *psub;
 756         Modifications   *modlist = NULL;
 757
 758         int                             match, m;
 759
 760         struct timeval *tout_p = NULL;
 761         struct timeval tout = { 0, 0 };
 762
 763         int             refreshDeletes = 0;
 764         BerVarray syncUUIDs = NULL;
 765         ber_tag_t si_tag;
 766
 767         if ( slapd_shutdown ) {
 768                 rc = -2;
 769                 goto done;
 770         }
 771
 772         ber_init2( ber, NULL, LBER_USE_DER );
 773         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 774
 775         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 776
 777         psub = &si->si_be->be_nsuffix[0];
 778
 779         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 780
 781         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 782                 tout_p = &tout;
 783         } else {
 784                 tout_p = NULL;
 785         }
 786
 787         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 788                 tout_p, &msg ) ) > 0 )
 789         {
 790                 LDAPControl     *rctrlp = NULL;
 791
 792                 if ( slapd_shutdown ) {
 793                         rc = -2;
 794                         goto done;
 795                 }
 796                 switch( ldap_msgtype( msg ) ) {
 797                 case LDAP_RES_SEARCH_ENTRY:
 798                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 799                         /* we can't work without the control */
 800                         if ( rctrls ) {
 801                                 LDAPControl **next;
 802                                 /* NOTE: make sure we use the right one;
 803                                  * a better approach would be to run thru
 804                                  * the whole list and take care of all */
 805                                 /* NOTE: since we issue the search request,
 806                                  * we should know what controls to expect,
 807                                  * and there should be none apart from the
 808                                  * sync-related control */
 809                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 810                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 811                                 {
 812                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 813                                                 "got search entry with multiple "
 814                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 815                                         ldap_controls_free( rctrls );
 816                                         rc = -1;
 817                                         goto done;
 818                                 }
 819                         }
 820                         if ( rctrlp == NULL ) {
 821                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 822                                         "got search entry without "
 823                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 828                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 829                         /* FIXME: what if syncUUID is NULL or empty?
 830                          * (happens with back-sql...) */
 831                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 832                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 833                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 834                                         si->si_ridtxt,
 835                                         syncrepl_state2str( syncstate ), 0 );
 836                                 ldap_controls_free( rctrls );
 837                                 rc = -1;
 838                                 goto done;
 839                         }
 840                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 841                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 842
 843                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 844                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 845
 846                                 if ( !BER_BVISNULL( &cookie ) ) {
 847                                         ch_free( syncCookie.octet_str.bv_val );
 848                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 849                                 }
 850                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 851                                 {
 852                                         slap_parse_sync_cookie( &syncCookie, NULL );
 853                                         if ( syncCookie.ctxcsn ) {
 854                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 855                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 856                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 857                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 858                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 859                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 860                                                                 ldap_controls_free( rctrls );
 861                                                                 rc = 0;
 862                                                                 goto done;
 863                                                         }
 864                                                 }
 865                                         }
 866                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
 867                                 }
 868                         }
 869                         rc = 0;
 870                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 871                                 modlist = NULL;
 872                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 873                                         syncCookie.ctxcsn )
 874                                 {
 875                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 876                                 } else switch ( rc ) {
 877                                         case LDAP_ALREADY_EXISTS:
 878                                         case LDAP_NO_SUCH_OBJECT:
 879                                         case LDAP_NO_SUCH_ATTRIBUTE:
 880                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 881                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 882                                                 si->si_logstate = SYNCLOG_FALLBACK;
 883                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 884                                                 break;
 885                                         default:
 886                                                 break;
 887                                 }
 888                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 889                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 890                         {
 891                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 892                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 893                                         syncCookie.ctxcsn )
 894                                 {
 895                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 896                                 }
 897                         }
 898                         ldap_controls_free( rctrls );
 899                         if ( modlist ) {
 900                                 slap_mods_free( modlist, 1 );
 901                         }
 902                         if ( rc )
 903                                 goto done;
 904                         break;
 905
 906                 case LDAP_RES_SEARCH_REFERENCE:
 907                         Debug( LDAP_DEBUG_ANY,
 908                                 "do_syncrep2: %s reference received error\n",
 909                                 si->si_ridtxt, 0, 0 );
 910                         break;
 911
 912                 case LDAP_RES_SEARCH_RESULT:
 913                         Debug( LDAP_DEBUG_SYNC,
 914                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 915                                 si->si_ridtxt, 0, 0 );
 916                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 917                                 &rctrls, 0 );
 918 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 919                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 920                                 /* map old result code to registered code */
 921                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 922                         }
 923 #endif
 924                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 925                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 926                                         si->si_logstate = SYNCLOG_FALLBACK;
 927                                 }
 928                                 rc = err;
 929                                 goto done;
 930                         }
 931                         if ( err ) {
 932                                 Debug( LDAP_DEBUG_ANY,
 933                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 934                                         si->si_ridtxt, err, ldap_err2string( err ) );
 935                         }
 936                         if ( rctrls ) {
 937                                 LDAPControl **next;
 938                                 /* NOTE: make sure we use the right one;
 939                                  * a better approach would be to run thru
 940                                  * the whole list and take care of all */
 941                                 /* NOTE: since we issue the search request,
 942                                  * we should know what controls to expect,
 943                                  * and there should be none apart from the
 944                                  * sync-related control */
 945                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 946                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 947                                 {
 948                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 949                                                 "got search result with multiple "
 950                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 951                                         ldap_controls_free( rctrls );
 952                                         rc = -1;
 953                                         goto done;
 954                                 }
 955                         }
 956                         if ( rctrlp ) {
 957                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 958
 959                                 ber_scanf( ber, "{" /*"}"*/);
 960                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 961                                         ber_scanf( ber, "m", &cookie );
 962
 963                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 964                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 965
 966                                         if ( !BER_BVISNULL( &cookie ) ) {
 967                                                 ch_free( syncCookie.octet_str.bv_val );
 968                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 969                                         }
 970                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 971                                         {
 972                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 973                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
 974                                         }
 975                                 }
 976                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 977                                 {
 978                                         ber_scanf( ber, "b", &refreshDeletes );
 979                                 }
 980                                 ber_scanf( ber, /*"{"*/ "}" );
 981                         }
 982                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 983                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 984                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 985                         }
 986                         if ( !syncCookie.ctxcsn ) {
 987                                 match = 1;
 988                         } else if ( !syncCookie_req.ctxcsn ) {
 989                                 match = -1;
 990                                 m = 0;
 991                         } else {
 992                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 993                         }
 994                         if ( rctrls ) {
 995                                 ldap_controls_free( rctrls );
 996                         }
 997                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 998                                 /* FIXME : different error behaviors according to
 999                                  *      1) err code : LDAP_BUSY ...
1000                                  *      2) on err policy : stop service, stop sync, retry
1001                                  */
1002                                 if ( refreshDeletes == 0 && match < 0 &&
1003                                         err == LDAP_SUCCESS &&
1004                                         syncCookie_req.numcsns == syncCookie.numcsns )
1005                                 {
1006                                         syncrepl_del_nonpresent( op, si, NULL,
1007                                                 &syncCookie, m );
1008                                 } else {
1009                                         avl_free( si->si_presentlist, ch_free );
1010                                         si->si_presentlist = NULL;
1011                                 }
1012                         }
1013                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1014                         {
1015                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1016                         }
1017                         if ( err == LDAP_SUCCESS
1018                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1019                                 si->si_logstate = SYNCLOG_LOGGING;
1020                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1021                         } else {
1022                                 rc = -2;
1023                         }
1024                         goto done;
1025                         break;
1026
1027                 case LDAP_RES_INTERMEDIATE:
1028                         rc = ldap_parse_intermediate( si->si_ld, msg,
1029                                 &retoid, &retdata, NULL, 0 );
1030                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1031                                 ber_init2( ber, retdata, LBER_USE_DER );
1032
1033                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1034                                 ber_tag_t tag;
1035                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1036                                         Debug( LDAP_DEBUG_SYNC,
1037                                                 "do_syncrep2: %s %s - %s\n",
1038                                                 si->si_ridtxt,
1039                                                 "LDAP_RES_INTERMEDIATE",
1040                                                 "NEW_COOKIE" );
1041                                         ber_scanf( ber, "tm", &tag, &cookie );
1042                                         Debug( LDAP_DEBUG_SYNC,
1043                                                 "do_syncrep2: %s NEW_COOKIE: %s\n",
1044                                                 si->si_ridtxt,
1045                                                 cookie.bv_val, 0);
1046                                         if ( !BER_BVISNULL( &cookie ) ) {
1047                                                 ch_free( syncCookie.octet_str.bv_val );
1048                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1049                                         }
1050                                         if (!BER_BVISNULL( &syncCookie.octet_str ) ) {
1051                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1052                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1053                                         }
1054                                         break;
1055                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1056                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1057                                         Debug( LDAP_DEBUG_SYNC,
1058                                                 "do_syncrep2: %s %s - %s\n",
1059                                                 si->si_ridtxt,
1060                                                 "LDAP_RES_INTERMEDIATE",
1061                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1062                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1063                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1064                                                 si->si_refreshDelete = 1;
1065                                         } else {
1066                                                 si->si_refreshPresent = 1;
1067                                         }
1068                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1069                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1070                                         {
1071                                                 ber_scanf( ber, "m", &cookie );
1072
1073                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1074                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1075
1076                                                 if ( !BER_BVISNULL( &cookie ) ) {
1077                                                         ch_free( syncCookie.octet_str.bv_val );
1078                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1079                                                 }
1080                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1081                                                 {
1082                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1083                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1084                                                 }
1085                                         }
1086                                         /* Defaults to TRUE */
1087                                         if ( ber_peek_tag( ber, &len ) ==
1088                                                 LDAP_TAG_REFRESHDONE )
1089                                         {
1090                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1091                                         } else
1092                                         {
1093                                                 si->si_refreshDone = 1;
1094                                         }
1095                                         ber_scanf( ber, /*"{"*/ "}" );
1096                                         break;
1097                                 case LDAP_TAG_SYNC_ID_SET:
1098                                         Debug( LDAP_DEBUG_SYNC,
1099                                                 "do_syncrep2: %s %s - %s\n",
1100                                                 si->si_ridtxt,
1101                                                 "LDAP_RES_INTERMEDIATE",
1102                                                 "SYNC_ID_SET" );
1103                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1104                                         if ( ber_peek_tag( ber, &len ) ==
1105                                                 LDAP_TAG_SYNC_COOKIE )
1106                                         {
1107                                                 ber_scanf( ber, "m", &cookie );
1108
1109                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1110                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1111
1112                                                 if ( !BER_BVISNULL( &cookie ) ) {
1113                                                         ch_free( syncCookie.octet_str.bv_val );
1114                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1115                                                 }
1116                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1117                                                 {
1118                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1119                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1120                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1121                                                 }
1122                                         }
1123                                         if ( ber_peek_tag( ber, &len ) ==
1124                                                 LDAP_TAG_REFRESHDELETES )
1125                                         {
1126                                                 ber_scanf( ber, "b", &refreshDeletes );
1127                                         }
1128                                         ber_scanf( ber, "[W]", &syncUUIDs );
1129                                         ber_scanf( ber, /*"{"*/ "}" );
1130                                         if ( refreshDeletes ) {
1131                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1132                                                         &syncCookie, m );
1133                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1134                                         } else {
1135                                                 int i;
1136                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1137                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1138                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1139                                                 }
1140                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1141                                         }
1142                                         slap_sync_cookie_free( &syncCookie, 0 );
1143                                         break;
1144                                 default:
1145                                         Debug( LDAP_DEBUG_ANY,
1146                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1147                                                 si->si_ridtxt, (long) si_tag, 0 );
1148                                         ldap_memfree( retoid );
1149                                         ber_bvfree( retdata );
1150                                         continue;
1151                                 }
1152
1153                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1154                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1155                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1156                                 }
1157                                 if ( !syncCookie.ctxcsn ) {
1158                                         match = 1;
1159                                 } else if ( !syncCookie_req.ctxcsn ) {
1160                                         match = -1;
1161                                         m = 0;
1162                                 } else {
1163                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1164                                 }
1165
1166                                 if ( match < 0 ) {
1167                                         if ( si->si_refreshPresent == 1 &&
1168                                                 si_tag != LDAP_TAG_SYNC_NEW_COOKIE &&
1169                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1170                                                 syncrepl_del_nonpresent( op, si, NULL,
1171                                                         &syncCookie, m );
1172                                         }
1173
1174                                         if ( syncCookie.ctxcsn )
1175                                         {
1176                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1177                                         }
1178                                 }
1179
1180                                 ldap_memfree( retoid );
1181                                 ber_bvfree( retdata );
1182                                 break;
1183
1184                         } else {
1185                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1186                                         "unknown intermediate response (%d)\n",
1187                                         si->si_ridtxt, rc, 0 );
1188                                 ldap_memfree( retoid );
1189                                 ber_bvfree( retdata );
1190                                 break;
1191                         }
1192                         break;
1193
1194                 default:
1195                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1196                                 "unknown message (0x%02lx)\n",
1197                                 si->si_ridtxt,
1198                                 (unsigned long)ldap_msgtype( msg ), 0 );
1199                         break;
1200
1201                 }
1202                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1203                         slap_sync_cookie_free( &syncCookie_req, 0 );
1204                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1205                         slap_sync_cookie_free( &syncCookie, 0 );
1206                 }
1207                 ldap_msgfree( msg );
1208                 msg = NULL;
1209                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1210                         slap_sync_cookie_free( &syncCookie, 0 );
1211                         slap_sync_cookie_free( &syncCookie_req, 0 );
1212                         return SYNC_PAUSED;
1213                 }
1214         }
1215
1216         if ( rc == -1 ) {
1217                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1218                 err = rc;
1219         }
1220
1221 done:
1222         if ( err != LDAP_SUCCESS ) {
1223                 Debug( LDAP_DEBUG_ANY,
1224                         "do_syncrep2: %s (%d) %s\n",
1225                         si->si_ridtxt, err, ldap_err2string( err ) );
1226         }
1227
1228         slap_sync_cookie_free( &syncCookie, 0 );
1229         slap_sync_cookie_free( &syncCookie_req, 0 );
1230
1231         if ( msg ) ldap_msgfree( msg );
1232
1233         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1234                 if ( si->si_conn ) {
1235                         connection_client_stop( si->si_conn );
1236                         si->si_conn = NULL;
1237                 }
1238                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1239                 si->si_ld = NULL;
1240         }
1241
1242         return rc;
1243 }
1244
1245 static void *
1246 do_syncrepl(
1247         void    *ctx,
1248         void    *arg )
1249 {
1250         struct re_s* rtask = arg;
1251         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1252         Connection conn = {0};
1253         OperationBuffer opbuf;
1254         Operation *op;
1255         int rc = LDAP_SUCCESS;
1256         int dostop = 0;
1257         ber_socket_t s;
1258         int i, defer = 1, fail = 0;
1259         Backend *be;
1260
1261         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1262
1263         if ( si == NULL )
1264                 return NULL;
1265
1266         /* Don't get stuck here while a pause is initiated */
1267         while ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
1268                 if ( slapd_shutdown )
1269                         return NULL;
1270                 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1271                         ldap_pvt_thread_yield();
1272         }
1273
1274         switch( abs( si->si_type ) ) {
1275         case LDAP_SYNC_REFRESH_ONLY:
1276         case LDAP_SYNC_REFRESH_AND_PERSIST:
1277                 break;
1278         default:
1279                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1280                 return NULL;
1281         }
1282
1283         if ( slapd_shutdown ) {
1284                 if ( si->si_ld ) {
1285                         if ( si->si_conn ) {
1286                                 connection_client_stop( si->si_conn );
1287                                 si->si_conn = NULL;
1288                         }
1289                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1290                         si->si_ld = NULL;
1291                 }
1292                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1293                 return NULL;
1294         }
1295
1296         connection_fake_init( &conn, &opbuf, ctx );
1297         op = &opbuf.ob_op;
1298
1299         /* use global malloc for now */
1300         op->o_tmpmemctx = NULL;
1301         op->o_tmpmfuncs = &ch_mfuncs;
1302
1303         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1304         be = si->si_be;
1305
1306         /* Coordinate contextCSN updates with any syncprov overlays
1307          * in use. This may be complicated by the use of the glue
1308          * overlay.
1309          *
1310          * Typically there is a single syncprov mastering the entire
1311          * glued tree. In that case, our contextCSN updates should
1312          * go to the master DB. But if there is no syncprov on the
1313          * master DB, then nothing special is needed here.
1314          *
1315          * Alternatively, there may be individual syncprov overlays
1316          * on each glued branch. In that case, each syncprov only
1317          * knows about changes within its own branch. And so our
1318          * contextCSN updates should only go to the local DB.
1319          */
1320         if ( !si->si_wbe ) {
1321                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1322                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1323                         if ( overlay_is_inst( top_be, "syncprov" ))
1324                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1325                         else
1326                                 si->si_wbe = be;
1327                 } else {
1328                         si->si_wbe = be;
1329                 }
1330         }
1331         if ( !si->si_schemachecking )
1332                 op->o_no_schema_check = 1;
1333
1334         /* Establish session, do search */
1335         if ( !si->si_ld ) {
1336                 si->si_refreshDelete = 0;
1337                 si->si_refreshPresent = 0;
1338
1339                 /* use main DB when retrieving contextCSN */
1340                 op->o_bd = si->si_wbe;
1341                 op->o_dn = op->o_bd->be_rootdn;
1342                 op->o_ndn = op->o_bd->be_rootndn;
1343                 rc = do_syncrep1( op, si );
1344         }
1345
1346 reload:
1347         /* Process results */
1348         if ( rc == LDAP_SUCCESS ) {
1349                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1350
1351                 /* use current DB */
1352                 op->o_bd = be;
1353                 op->o_dn = op->o_bd->be_rootdn;
1354                 op->o_ndn = op->o_bd->be_rootndn;
1355                 rc = do_syncrep2( op, si );
1356                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1357                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1358                         goto reload;
1359                 }
1360
1361                 /* We got deleted while running on cn=config */
1362                 if ( !si->si_ctype ) {
1363                         if ( si->si_conn )
1364                                 dostop = 1;
1365                         rc = -1;
1366                 }
1367
1368                 if ( rc != SYNC_PAUSED ) {
1369                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1370                                 /* If we succeeded, enable the connection for further listening.
1371                                  * If we failed, tear down the connection and reschedule.
1372                                  */
1373                                 if ( rc == LDAP_SUCCESS ) {
1374                                         if ( si->si_conn ) {
1375                                                 connection_client_enable( si->si_conn );
1376                                         } else {
1377                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1378                                         }
1379                                 } else if ( si->si_conn ) {
1380                                         dostop = 1;
1381                                 }
1382                         } else {
1383                                 if ( rc == -2 ) rc = 0;
1384                         }
1385                 }
1386         }
1387
1388         /* At this point, we have 5 cases:
1389          * 1) for any hard failure, give up and remove this task
1390          * 2) for ServerDown, reschedule this task to run later
1391          * 3) for threadpool pause, reschedule to run immediately
1392          * 4) for Refresh and Success, reschedule to run
1393          * 5) for Persist and Success, reschedule to defer
1394          */
1395         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1396
1397         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1398                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1399         }
1400
1401         if ( dostop ) {
1402                 connection_client_stop( si->si_conn );
1403                 si->si_conn = NULL;
1404         }
1405
1406         if ( rc == SYNC_PAUSED ) {
1407                 rtask->interval.tv_sec = 0;
1408                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1409                 rtask->interval.tv_sec = si->si_interval;
1410                 rc = 0;
1411         } else if ( rc == LDAP_SUCCESS ) {
1412                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1413                         defer = 0;
1414                 }
1415                 rtask->interval.tv_sec = si->si_interval;
1416                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1417                 if ( si->si_retrynum ) {
1418                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1419                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1420                         }
1421                         si->si_retrynum[i] = RETRYNUM_TAIL;
1422                 }
1423         } else {
1424                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1425                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1426                                 break;
1427                 }
1428
1429                 if ( !si->si_ctype
1430                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1431                         if ( si->si_re ) {
1432                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1433                                 si->si_re = NULL;
1434                         }
1435                         fail = RETRYNUM_TAIL;
1436                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1437                         if ( si->si_retrynum[i] > 0 )
1438                                 si->si_retrynum[i]--;
1439                         fail = si->si_retrynum[i];
1440                         rtask->interval.tv_sec = si->si_retryinterval[i];
1441                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1442                         slap_wake_listener();
1443                 }
1444         }
1445
1446         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1447         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1448
1449         if ( rc ) {
1450                 if ( fail == RETRYNUM_TAIL ) {
1451                         Debug( LDAP_DEBUG_ANY,
1452                                 "do_syncrepl: %s quitting\n",
1453                                 si->si_ridtxt, 0, 0 );
1454                 } else if ( fail > 0 ) {
1455                         Debug( LDAP_DEBUG_ANY,
1456                                 "do_syncrepl: %s retrying (%d retries left)\n",
1457                                 si->si_ridtxt, fail, 0 );
1458                 } else {
1459                         Debug( LDAP_DEBUG_ANY,
1460                                 "do_syncrepl: %s retrying\n",
1461                                 si->si_ridtxt, 0, 0 );
1462                 }
1463         }
1464
1465         /* Do final delete cleanup */
1466         if ( !si->si_ctype ) {
1467                 cookie_state *cs = si->si_cookieState;
1468                 syncinfo_free( si, ( !be->be_syncinfo ||
1469                         be->be_syncinfo->si_cookieState != cs ));
1470         }
1471         return NULL;
1472 }
1473
1474 static slap_verbmasks modops[] = {
1475         { BER_BVC("add"), LDAP_REQ_ADD },
1476         { BER_BVC("delete"), LDAP_REQ_DELETE },
1477         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1478         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1479         { BER_BVNULL, 0 }
1480 };
1481
1482 static Modifications *
1483 syncrepl_accesslog_mods(
1484         syncinfo_t *si,
1485         struct berval *vals
1486 )
1487 {
1488         char *colon;
1489         const char *text;
1490         AttributeDescription *ad;
1491         struct berval bv, bv2;
1492         short op;
1493         Modifications *mod = NULL, *modlist = NULL, **modtail;
1494         int i;
1495
1496         modtail = &modlist;
1497
1498         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1499                 ad = NULL;
1500                 bv = vals[i];
1501
1502                 colon = ber_bvchr( &bv, ':' );
1503                 if ( !colon ) {
1504                         /* Invalid */
1505                         continue;
1506                 }
1507
1508                 bv.bv_len = colon - bv.bv_val;
1509                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1510                         /* Invalid */
1511                         continue;
1512                 }
1513
1514                 /* Ignore dynamically generated attrs */
1515                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1516                         continue;
1517                 }
1518
1519                 /* Ignore excluded attrs */
1520                 if ( ldap_charray_inlist( si->si_exattrs,
1521                         ad->ad_type->sat_cname.bv_val ) )
1522                 {
1523                         continue;
1524                 }
1525
1526                 switch(colon[1]) {
1527                 case '+':       op = LDAP_MOD_ADD; break;
1528                 case '-':       op = LDAP_MOD_DELETE; break;
1529                 case '=':       op = LDAP_MOD_REPLACE; break;
1530                 case '#':       op = LDAP_MOD_INCREMENT; break;
1531                 default:        continue;
1532                 }
1533
1534                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1535                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1536                         mod->sml_flags = 0;
1537                         mod->sml_op = op;
1538                         mod->sml_next = NULL;
1539                         mod->sml_desc = ad;
1540                         mod->sml_type = ad->ad_cname;
1541                         mod->sml_values = NULL;
1542                         mod->sml_nvalues = NULL;
1543                         mod->sml_numvals = 0;
1544
1545                         *modtail = mod;
1546                         modtail = &mod->sml_next;
1547                 }
1548                 if ( colon[2] == ' ' ) {
1549                         bv.bv_val = colon + 3;
1550                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1551                         ber_dupbv( &bv2, &bv );
1552                         ber_bvarray_add( &mod->sml_values, &bv2 );
1553                         mod->sml_numvals++;
1554                 }
1555         }
1556         return modlist;
1557 }
1558
1559 static Modifications *
1560 syncrepl_changelog_mods(
1561         syncinfo_t *si,
1562         struct berval *vals
1563 )
1564 {
1565         return NULL;    /* FIXME */
1566 }
1567
1568 static int
1569 syncrepl_message_to_op(
1570         syncinfo_t      *si,
1571         Operation       *op,
1572         LDAPMessage     *msg
1573 )
1574 {
1575         BerElement      *ber = NULL;
1576         Modifications   *modlist = NULL;
1577         logschema *ls;
1578         SlapReply rs = { REP_RESULT };
1579         slap_callback cb = { NULL, null_callback, NULL, NULL };
1580
1581         const char      *text;
1582         char txtbuf[SLAP_TEXT_BUFLEN];
1583         size_t textlen = sizeof txtbuf;
1584
1585         struct berval   bdn, dn = BER_BVNULL, ndn;
1586         struct berval   bv, *bvals = NULL;
1587         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1588                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1589                 psup = BER_BVNULL, nsup = BER_BVNULL;
1590         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1591
1592         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1593                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1594                         "Message type should be entry (%d)",
1595                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1596                 return -1;
1597         }
1598
1599         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1600                 ls = &accesslog_sc;
1601         else
1602                 ls = &changelog_sc;
1603
1604         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1605
1606         if ( rc != LDAP_SUCCESS ) {
1607                 Debug( LDAP_DEBUG_ANY,
1608                         "syncrepl_message_to_op: %s dn get failed (%d)",
1609                         si->si_ridtxt, rc, 0 );
1610                 return rc;
1611         }
1612
1613         op->o_tag = LBER_DEFAULT;
1614         op->o_bd = si->si_wbe;
1615
1616         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1617                 == LDAP_SUCCESS ) {
1618                 if ( bv.bv_val == NULL )
1619                         break;
1620
1621                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1622                         bdn = bvals[0];
1623                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1624                         ber_dupbv( &op->o_req_dn, &dn );
1625                         ber_dupbv( &op->o_req_ndn, &ndn );
1626                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1627                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1628                         freeReqDn = 1;
1629                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1630                         int i = verb_to_mask( bvals[0].bv_val, modops );
1631                         if ( i < 0 ) {
1632                                 Debug( LDAP_DEBUG_ANY,
1633                                         "syncrepl_message_to_op: %s unknown op %s",
1634                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1635                                 ch_free( bvals );
1636                                 rc = -1;
1637                                 goto done;
1638                         }
1639                         op->o_tag = modops[i].mask;
1640                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1641                         /* Parse attribute into modlist */
1642                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1643                                 modlist = syncrepl_accesslog_mods( si, bvals );
1644                         } else {
1645                                 modlist = syncrepl_changelog_mods( si, bvals );
1646                         }
1647                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1648                         rdn = bvals[0];
1649                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1650                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1651                                 deleteOldRdn = 1;
1652                         }
1653                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1654                         sup = bvals[0];
1655                 } else if ( !ber_bvstrcasecmp( &bv,
1656                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1657                 {
1658                         slap_queue_csn( op, bvals );
1659                 }
1660                 ch_free( bvals );
1661         }
1662
1663         /* If we didn't get a mod type or a target DN, bail out */
1664         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1665                 rc = -1;
1666                 goto done;
1667         }
1668
1669         op->o_callback = &cb;
1670         slap_op_time( &op->o_time, &op->o_tincr );
1671
1672         switch( op->o_tag ) {
1673         case LDAP_REQ_ADD:
1674         case LDAP_REQ_MODIFY:
1675                 /* If we didn't get required data, bail */
1676                 if ( !modlist ) goto done;
1677
1678                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1679
1680                 if ( rc != LDAP_SUCCESS ) {
1681                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1682                                 "mods check (%s)\n",
1683                                 si->si_ridtxt, text, 0 );
1684                         goto done;
1685                 }
1686
1687                 if ( op->o_tag == LDAP_REQ_ADD ) {
1688                         Entry *e = entry_alloc();
1689                         op->ora_e = e;
1690                         op->ora_e->e_name = op->o_req_dn;
1691                         op->ora_e->e_nname = op->o_req_ndn;
1692                         freeReqDn = 0;
1693                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1694                         if( rc != LDAP_SUCCESS ) {
1695                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1696                                 "mods2entry (%s)\n",
1697                                         si->si_ridtxt, text, 0 );
1698                         } else {
1699                                 rc = op->o_bd->be_add( op, &rs );
1700                                 Debug( LDAP_DEBUG_SYNC,
1701                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1702                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1703                         }
1704                         if ( e == op->ora_e )
1705                                 be_entry_release_w( op, op->ora_e );
1706                 } else {
1707                         op->orm_modlist = modlist;
1708                         op->o_bd = si->si_wbe;
1709                         rc = op->o_bd->be_modify( op, &rs );
1710                         modlist = op->orm_modlist;
1711                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1712                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1713                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1714                         op->o_bd = si->si_be;
1715                 }
1716                 break;
1717         case LDAP_REQ_MODRDN:
1718                 if ( BER_BVISNULL( &rdn ) ) goto done;
1719
1720                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1721                         goto done;
1722                 }
1723                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1724                         goto done;
1725                 }
1726                 if ( !BER_BVISNULL( &sup ) ) {
1727                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1728                                 goto done;
1729                         }
1730                         op->orr_newSup = &psup;
1731                         op->orr_nnewSup = &nsup;
1732                 } else {
1733                         op->orr_newSup = NULL;
1734                         op->orr_nnewSup = NULL;
1735                 }
1736                 op->orr_newrdn = prdn;
1737                 op->orr_nnewrdn = nrdn;
1738                 op->orr_deleteoldrdn = deleteOldRdn;
1739                 op->orr_modlist = NULL;
1740                 if ( slap_modrdn2mods( op, &rs ) ) {
1741                         goto done;
1742                 }
1743
1744                 /* Append modlist for operational attrs */
1745                 {
1746                         Modifications *m;
1747
1748                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1749                                 ;
1750                         m->sml_next = modlist;
1751                         modlist = NULL;
1752                 }
1753                 rc = op->o_bd->be_modrdn( op, &rs );
1754                 slap_mods_free( op->orr_modlist, 1 );
1755                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1756                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1757                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1758                 break;
1759         case LDAP_REQ_DELETE:
1760                 rc = op->o_bd->be_delete( op, &rs );
1761                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1762                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1763                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1764                 break;
1765         }
1766 done:
1767         slap_graduate_commit_csn( op );
1768         op->o_bd = si->si_be;
1769         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1770         BER_BVZERO( &op->o_csn );
1771         if ( modlist ) {
1772                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1773         }
1774         if ( !BER_BVISNULL( &rdn ) ) {
1775                 if ( !BER_BVISNULL( &nsup ) ) {
1776                         ch_free( nsup.bv_val );
1777                 }
1778                 if ( !BER_BVISNULL( &psup ) ) {
1779                         ch_free( psup.bv_val );
1780                 }
1781                 if ( !BER_BVISNULL( &nrdn ) ) {
1782                         ch_free( nrdn.bv_val );
1783                 }
1784                 if ( !BER_BVISNULL( &prdn ) ) {
1785                         ch_free( prdn.bv_val );
1786                 }
1787         }
1788         if ( freeReqDn ) {
1789                 ch_free( op->o_req_ndn.bv_val );
1790                 ch_free( op->o_req_dn.bv_val );
1791         }
1792         ber_free( ber, 0 );
1793         return rc;
1794 }
1795
1796 static int
1797 syncrepl_message_to_entry(
1798         syncinfo_t      *si,
1799         Operation       *op,
1800         LDAPMessage     *msg,
1801         Modifications   **modlist,
1802         Entry                   **entry,
1803         int             syncstate
1804 )
1805 {
1806         Entry           *e = NULL;
1807         BerElement      *ber = NULL;
1808         Modifications   tmp;
1809         Modifications   *mod;
1810         Modifications   **modtail = modlist;
1811
1812         const char      *text;
1813         char txtbuf[SLAP_TEXT_BUFLEN];
1814         size_t textlen = sizeof txtbuf;
1815
1816         struct berval   bdn = BER_BVNULL, dn, ndn;
1817         int             rc, is_ctx;
1818
1819         *modlist = NULL;
1820
1821         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1822                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1823                         "Message type should be entry (%d)",
1824                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1825                 return -1;
1826         }
1827
1828         op->o_tag = LDAP_REQ_ADD;
1829
1830         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1831         if ( rc != LDAP_SUCCESS ) {
1832                 Debug( LDAP_DEBUG_ANY,
1833                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1834                         si->si_ridtxt, rc, 0 );
1835                 return rc;
1836         }
1837
1838         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1839                 /* NOTE: this could be done even before decoding the DN,
1840                  * although encoding errors wouldn't be detected */
1841                 rc = LDAP_SUCCESS;
1842                 goto done;
1843         }
1844
1845         if ( entry == NULL ) {
1846                 return -1;
1847         }
1848
1849         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1850         ber_dupbv( &op->o_req_dn, &dn );
1851         ber_dupbv( &op->o_req_ndn, &ndn );
1852         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1853         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1854
1855         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1856
1857         e = entry_alloc();
1858         e->e_name = op->o_req_dn;
1859         e->e_nname = op->o_req_ndn;
1860
1861         while ( ber_remaining( ber ) ) {
1862                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1863                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1864                 {
1865                         break;
1866                 }
1867
1868                 /* Drop all updates to the contextCSN of the context entry
1869                  * (ITS#4622, etc.)
1870                  */
1871                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1872                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1873                         ber_bvarray_free( tmp.sml_values );
1874                         continue;
1875                 }
1876
1877                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1878
1879                 mod->sml_op = LDAP_MOD_REPLACE;
1880                 mod->sml_flags = 0;
1881                 mod->sml_next = NULL;
1882                 mod->sml_desc = NULL;
1883                 mod->sml_type = tmp.sml_type;
1884                 mod->sml_values = tmp.sml_values;
1885                 mod->sml_nvalues = NULL;
1886                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1887
1888                 *modtail = mod;
1889                 modtail = &mod->sml_next;
1890         }
1891
1892         if ( *modlist == NULL ) {
1893                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1894                         si->si_ridtxt, 0, 0 );
1895                 rc = -1;
1896                 goto done;
1897         }
1898
1899         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1900
1901         if ( rc != LDAP_SUCCESS ) {
1902                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1903                         si->si_ridtxt, text, 0 );
1904                 goto done;
1905         }
1906
1907         /* Strip out dynamically generated attrs */
1908         for ( modtail = modlist; *modtail ; ) {
1909                 mod = *modtail;
1910                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1911                         *modtail = mod->sml_next;
1912                         slap_mod_free( &mod->sml_mod, 0 );
1913                         ch_free( mod );
1914                 } else {
1915                         modtail = &mod->sml_next;
1916                 }
1917         }
1918
1919         /* Strip out attrs in exattrs list */
1920         for ( modtail = modlist; *modtail ; ) {
1921                 mod = *modtail;
1922                 if ( ldap_charray_inlist( si->si_exattrs,
1923                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1924                 {
1925                         *modtail = mod->sml_next;
1926                         slap_mod_free( &mod->sml_mod, 0 );
1927                         ch_free( mod );
1928                 } else {
1929                         modtail = &mod->sml_next;
1930                 }
1931         }
1932
1933         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1934         if( rc != LDAP_SUCCESS ) {
1935                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1936                         si->si_ridtxt, text, 0 );
1937         }
1938
1939 done:
1940         ber_free( ber, 0 );
1941         if ( rc != LDAP_SUCCESS ) {
1942                 if ( e ) {
1943                         entry_free( e );
1944                         e = NULL;
1945                 }
1946         }
1947         if ( entry )
1948                 *entry = e;
1949
1950         return rc;
1951 }
1952
1953 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1954
1955 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1956  * entry if a previous refresh was interrupted before sending us a new
1957  * context state. We try to compare the new entry to the existing entry
1958  * and ignore the new entry if they are the same.
1959  *
1960  * Also, we may get an update where the entryDN has changed, due to
1961  * a ModDn on the provider. We detect this as well, so we can issue
1962  * the corresponding operation locally.
1963  *
1964  * In the case of a modify, we get a list of all the attributes
1965  * in the original entry. Rather than deleting the entry and re-adding it,
1966  * we issue a Modify request that deletes all the attributes and adds all
1967  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1968  * entry.
1969  *
1970  * We otherwise distinguish ModDN from Modify; in the case of
1971  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1972  * operational attributes from the entry, and do a regular ModDN.
1973  */
1974 typedef struct dninfo {
1975         Entry *new_entry;
1976         struct berval dn;
1977         struct berval ndn;
1978         struct berval nnewSup;
1979         int renamed;    /* Was an existing entry renamed? */
1980         int delOldRDN;  /* Was old RDN deleted? */
1981         Modifications **modlist;        /* the modlist we received */
1982         Modifications *mods;    /* the modlist we compared */
1983         Attribute *oldNattr;    /* old naming attr */
1984         AttributeDescription *oldDesc;  /* for renames */
1985         AttributeDescription *newDesc;  /* for renames */
1986 } dninfo;
1987
1988 /* return 1 if inserted, 0 otherwise */
1989 static int
1990 avl_presentlist_insert(
1991         syncinfo_t* si,
1992         struct berval *syncUUID )
1993 {
1994         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1995
1996         syncuuid_bv->bv_len = syncUUID->bv_len;
1997         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1998         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1999         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
2000
2001         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
2002                 syncuuid_cmp, avl_dup_error ) )
2003         {
2004                 ch_free( syncuuid_bv );
2005                 return 0;
2006         }
2007
2008         return 1;
2009 }
2010
2011 static int
2012 syncrepl_entry(
2013         syncinfo_t* si,
2014         Operation *op,
2015         Entry* entry,
2016         Modifications** modlist,
2017         int syncstate,
2018         struct berval* syncUUID,
2019         struct berval* syncCSN )
2020 {
2021         Backend *be = op->o_bd;
2022         slap_callback   cb = { NULL, NULL, NULL, NULL };
2023         int syncuuid_inserted = 0;
2024         struct berval   syncUUID_strrep = BER_BVNULL;
2025
2026         SlapReply       rs_search = {REP_RESULT};
2027         SlapReply       rs_delete = {REP_RESULT};
2028         SlapReply       rs_add = {REP_RESULT};
2029         SlapReply       rs_modify = {REP_RESULT};
2030         Filter f = {0};
2031         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2032         int rc = LDAP_SUCCESS;
2033
2034         struct berval pdn = BER_BVNULL;
2035         dninfo dni = {0};
2036         int     retry = 1;
2037         int     freecsn = 1;
2038
2039         Debug( LDAP_DEBUG_SYNC,
2040                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2041                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2042
2043         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2044                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2045                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2046                 }
2047         }
2048
2049         if ( syncstate == LDAP_SYNC_PRESENT ) {
2050                 return 0;
2051         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2052                 if ( entry == NULL ) {
2053                         return 0;
2054                 }
2055         }
2056
2057         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2058         if ( syncstate != LDAP_SYNC_DELETE ) {
2059                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2060
2061                 if ( a == NULL ) {
2062                         /* add if missing */
2063                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2064                                 &syncUUID_strrep, syncUUID );
2065
2066                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2067                         /* replace only if necessary */
2068                         if ( a->a_nvals != a->a_vals ) {
2069                                 ber_memfree( a->a_nvals[0].bv_val );
2070                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2071                         }
2072                         ber_memfree( a->a_vals[0].bv_val );
2073                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2074                 }
2075         }
2076
2077         f.f_choice = LDAP_FILTER_EQUALITY;
2078         f.f_ava = &ava;
2079         ava.aa_desc = slap_schema.si_ad_entryUUID;
2080         ava.aa_value = *syncUUID;
2081
2082         if ( syncuuid_inserted ) {
2083                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2084                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2085         }
2086         op->ors_filter = &f;
2087
2088         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2089         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2090                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2091         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2092         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2093                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2094         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2095         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2096
2097         op->o_tag = LDAP_REQ_SEARCH;
2098         op->ors_scope = LDAP_SCOPE_SUBTREE;
2099         op->ors_deref = LDAP_DEREF_NEVER;
2100
2101         /* get the entry for this UUID */
2102         op->o_req_dn = si->si_base;
2103         op->o_req_ndn = si->si_base;
2104
2105         op->o_time = slap_get_time();
2106         op->ors_tlimit = SLAP_NO_LIMIT;
2107         op->ors_slimit = 1;
2108         op->ors_limit = NULL;
2109
2110         op->ors_attrs = slap_anlist_all_attributes;
2111         op->ors_attrsonly = 0;
2112
2113         /* set callback function */
2114         op->o_callback = &cb;
2115         cb.sc_response = dn_callback;
2116         cb.sc_private = &dni;
2117         dni.new_entry = entry;
2118         dni.modlist = modlist;
2119
2120         rc = be->be_search( op, &rs_search );
2121         Debug( LDAP_DEBUG_SYNC,
2122                         "syncrepl_entry: %s be_search (%d)\n",
2123                         si->si_ridtxt, rc, 0 );
2124
2125         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2126                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2127         }
2128
2129         cb.sc_response = null_callback;
2130         cb.sc_private = si;
2131
2132         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2133                 Debug( LDAP_DEBUG_SYNC,
2134                                 "syncrepl_entry: %s %s\n",
2135                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2136         } else {
2137                 Debug( LDAP_DEBUG_SYNC,
2138                                 "syncrepl_entry: %s %s\n",
2139                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2140         }
2141
2142         assert( BER_BVISNULL( &op->o_csn ) );
2143         if ( syncCSN ) {
2144                 slap_queue_csn( op, syncCSN );
2145         }
2146
2147         slap_op_time( &op->o_time, &op->o_tincr );
2148         switch ( syncstate ) {
2149         case LDAP_SYNC_ADD:
2150         case LDAP_SYNC_MODIFY:
2151                 if ( BER_BVISNULL( &op->o_csn ))
2152                 {
2153
2154                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2155                         if ( a ) {
2156                                 /* FIXME: op->o_csn is assumed to be
2157                                  * on the thread's slab; this needs
2158                                  * to be cleared ASAP.
2159                                  * What happens if already present?
2160                                  */
2161                                 assert( BER_BVISNULL( &op->o_csn ) );
2162                                 op->o_csn = a->a_vals[0];
2163                                 freecsn = 0;
2164                         }
2165                 }
2166 retry_add:;
2167                 if ( BER_BVISNULL( &dni.dn ) ) {
2168
2169                         op->o_req_dn = entry->e_name;
2170                         op->o_req_ndn = entry->e_nname;
2171                         op->o_tag = LDAP_REQ_ADD;
2172                         op->ora_e = entry;
2173                         op->o_bd = si->si_wbe;
2174
2175                         rc = op->o_bd->be_add( op, &rs_add );
2176                         Debug( LDAP_DEBUG_SYNC,
2177                                         "syncrepl_entry: %s be_add (%d)\n",
2178                                         si->si_ridtxt, rc, 0 );
2179                         switch ( rs_add.sr_err ) {
2180                         case LDAP_SUCCESS:
2181                                 if ( op->ora_e == entry ) {
2182                                         be_entry_release_w( op, entry );
2183                                 }
2184                                 entry = NULL;
2185                                 break;
2186
2187                         case LDAP_REFERRAL:
2188                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2189                          * only if the suffix entry is not present */
2190                         case LDAP_NO_SUCH_OBJECT:
2191                                 rc = syncrepl_add_glue( op, entry );
2192                                 entry = NULL;
2193                                 break;
2194
2195                         /* if an entry was added via syncrepl_add_glue(),
2196                          * it likely has no entryUUID, so the previous
2197                          * be_search() doesn't find it.  In this case,
2198                          * give syncrepl a chance to modify it. Also
2199                          * allow for entries that were recreated with the
2200                          * same DN but a different entryUUID.
2201                          */
2202                         case LDAP_ALREADY_EXISTS:
2203                                 if ( retry ) {
2204                                         Operation       op2 = *op;
2205                                         SlapReply       rs2 = { 0 };
2206                                         slap_callback   cb2 = { 0 };
2207
2208                                         op2.o_bd = be;
2209                                         op2.o_tag = LDAP_REQ_SEARCH;
2210                                         op2.o_req_dn = entry->e_name;
2211                                         op2.o_req_ndn = entry->e_nname;
2212                                         op2.ors_scope = LDAP_SCOPE_BASE;
2213                                         op2.ors_deref = LDAP_DEREF_NEVER;
2214                                         op2.ors_attrs = slap_anlist_all_attributes;
2215                                         op2.ors_attrsonly = 0;
2216                                         op2.ors_limit = NULL;
2217                                         op2.ors_slimit = 1;
2218                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2219
2220                                         f.f_choice = LDAP_FILTER_PRESENT;
2221                                         f.f_desc = slap_schema.si_ad_objectClass;
2222                                         op2.ors_filter = &f;
2223                                         op2.ors_filterstr = generic_filterstr;
2224
2225                                         op2.o_callback = &cb2;
2226                                         cb2.sc_response = dn_callback;
2227                                         cb2.sc_private = &dni;
2228
2229                                         rc = be->be_search( &op2, &rs2 );
2230                                         if ( rc ) goto done;
2231
2232                                         retry = 0;
2233                                         slap_op_time( &op->o_time, &op->o_tincr );
2234                                         goto retry_add;
2235                                 }
2236                                 /* FALLTHRU */
2237
2238                         default:
2239                                 Debug( LDAP_DEBUG_ANY,
2240                                         "syncrepl_entry: %s be_add failed (%d)\n",
2241                                         si->si_ridtxt, rs_add.sr_err, 0 );
2242                                 break;
2243                         }
2244                         op->o_bd = be;
2245                         goto done;
2246                 }
2247                 /* FALLTHRU */
2248                 op->o_req_dn = dni.dn;
2249                 op->o_req_ndn = dni.ndn;
2250                 if ( dni.renamed ) {
2251                         struct berval noldp, newp;
2252                         Modifications *mod, **modtail, **ml, *m2;
2253                         int i, got_replace = 0, just_rename = 0;
2254
2255                         op->o_tag = LDAP_REQ_MODRDN;
2256                         dnRdn( &entry->e_name, &op->orr_newrdn );
2257                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2258
2259                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2260                                 dnParent( &entry->e_name, &newp );
2261                                 op->orr_newSup = &newp;
2262                                 op->orr_nnewSup = &dni.nnewSup;
2263                         } else {
2264                                 op->orr_newSup = NULL;
2265                                 op->orr_nnewSup = NULL;
2266                         }
2267                         op->orr_deleteoldrdn = dni.delOldRDN;
2268                         op->orr_modlist = NULL;
2269                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2270                                 goto done;
2271                         }
2272
2273                         /* Drop the RDN-related mods from this op, because their
2274                          * equivalents were just setup by slap_modrdn2mods.
2275                          *
2276                          * If delOldRDN is TRUE then we should see a delete modop
2277                          * for oldDesc. We might see a replace instead.
2278                          *  delete with no values: therefore newDesc != oldDesc.
2279                          *   if oldNattr had only one value, then Drop this op.
2280                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2281                          *  delete with N values: Drop oldRDN value, keep remainder.
2282                          *  replace with 1 value: if oldNattr had only one value and
2283                          *     newDesc == oldDesc, Drop this op.
2284                          * Any other cases must be left intact.
2285                          *
2286                          * We should also see an add modop for newDesc. (But not if
2287                          * we got a replace modop due to delOldRDN.) If it has
2288                          * multiple values, we'll have to drop the new RDN value.
2289                          */
2290                         modtail = &op->orr_modlist;
2291                         if ( dni.delOldRDN ) {
2292                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2293                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2294                                                 mod = *ml;
2295                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2296                                                         dni.oldDesc != dni.newDesc ) {
2297                                                         /* This Replace is due to other Mods.
2298                                                          * Just let it ride.
2299                                                          */
2300                                                         continue;
2301                                                 }
2302                                                 if ( mod->sml_numvals <= 1 &&
2303                                                         dni.oldNattr->a_numvals == 1 &&
2304                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2305                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2306                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2307                                                                 got_replace = 1;
2308                                                         /* Drop this op */
2309                                                         *ml = mod->sml_next;
2310                                                         mod->sml_next = NULL;
2311                                                         slap_mods_free( mod, 1 );
2312                                                         break;
2313                                                 }
2314                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2315                                                         continue;
2316                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2317                                                         if ( m2->sml_desc == dni.oldDesc &&
2318                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2319                                                 }
2320                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2321                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2322                                                                 mod->sml_numvals--;
2323                                                                 ch_free( mod->sml_values[i].bv_val );
2324                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2325                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2326                                                                 if ( mod->sml_nvalues ) {
2327                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2328                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2329                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2330                                                                 }
2331                                                                 break;
2332                                                         }
2333                                                 }
2334                                                 if ( !mod->sml_numvals ) {
2335                                                         /* Drop this op */
2336                                                         *ml = mod->sml_next;
2337                                                         mod->sml_next = NULL;
2338                                                         slap_mods_free( mod, 1 );
2339                                                 }
2340                                                 break;
2341                                         }
2342                                 }
2343                         }
2344                         if ( !got_replace ) {
2345                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2346                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2347                                                 mod = *ml;
2348                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2349                                                         continue;
2350                                                 if ( mod->sml_numvals == 1 ) {
2351                                                         /* Drop this op */
2352                                                         *ml = mod->sml_next;
2353                                                         mod->sml_next = NULL;
2354                                                         slap_mods_free( mod, 1 );
2355                                                         break;
2356                                                 }
2357                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2358                                                         if ( m2->sml_desc == dni.oldDesc &&
2359                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2360                                                 }
2361                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2362                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2363                                                                 mod->sml_numvals--;
2364                                                                 ch_free( mod->sml_values[i].bv_val );
2365                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2366                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2367                                                                 if ( mod->sml_nvalues ) {
2368                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2369                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2370                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2371                                                                 }
2372                                                                 break;
2373                                                         }
2374                                                 }
2375                                                 break;
2376                                         }
2377                                 }
2378                         }
2379
2380                         /* RDNs must be NUL-terminated for back-ldap */
2381                         noldp = op->orr_newrdn;
2382                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2383                         noldp = op->orr_nnewrdn;
2384                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2385
2386                         /* Setup opattrs too */
2387                         {
2388                                 static AttributeDescription *nullattr = NULL;
2389                                 static AttributeDescription **const opattrs[] = {
2390                                         &slap_schema.si_ad_entryCSN,
2391                                         &slap_schema.si_ad_modifiersName,
2392                                         &slap_schema.si_ad_modifyTimestamp,
2393                                         &nullattr
2394                                 };
2395                                 AttributeDescription *opattr;
2396                                 int i;
2397
2398                                 modtail = &m2;
2399                                 /* pull mod off incoming modlist */
2400                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2401                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2402                                         {
2403                                                 if ( (*ml)->sml_desc == opattr ) {
2404                                                         mod = *ml;
2405                                                         *ml = mod->sml_next;
2406                                                         mod->sml_next = NULL;
2407                                                         *modtail = mod;
2408                                                         modtail = &mod->sml_next;
2409                                                         break;
2410                                                 }
2411                                         }
2412                                 }
2413                                 /* If there are still Modifications left, put the opattrs
2414                                  * back, and let be_modify run. Otherwise, append the opattrs
2415                                  * to the orr_modlist.
2416                                  */
2417                                 if ( dni.mods ) {
2418                                         mod = dni.mods;
2419                                         /* don't set a CSN for the rename op */
2420                                         if ( syncCSN )
2421                                                 slap_graduate_commit_csn( op );
2422                                 } else {
2423                                         mod = op->orr_modlist;
2424                                         just_rename = 1;
2425                                 }
2426                                 for ( ; mod->sml_next; mod=mod->sml_next );
2427                                 mod->sml_next = m2;
2428                         }
2429                         op->o_bd = si->si_wbe;
2430                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2431                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2432                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2433
2434                         slap_mods_free( op->orr_modlist, 1 );
2435                         Debug( LDAP_DEBUG_SYNC,
2436                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2437                                         si->si_ridtxt, rc, 0 );
2438                         op->o_bd = be;
2439                         /* Renamed entries may still have other mods so just fallthru */
2440                         op->o_req_dn = entry->e_name;
2441                         op->o_req_ndn = entry->e_nname;
2442                         /* Use CSN on the modify */
2443                         if ( syncCSN && !just_rename )
2444                                 slap_queue_csn( op, syncCSN );
2445                 }
2446                 if ( dni.mods ) {
2447                         op->o_tag = LDAP_REQ_MODIFY;
2448                         op->orm_modlist = dni.mods;
2449                         op->orm_no_opattrs = 1;
2450                         op->o_bd = si->si_wbe;
2451
2452                         rc = op->o_bd->be_modify( op, &rs_modify );
2453                         slap_mods_free( op->orm_modlist, 1 );
2454                         op->orm_no_opattrs = 0;
2455                         Debug( LDAP_DEBUG_SYNC,
2456                                         "syncrepl_entry: %s be_modify (%d)\n",
2457                                         si->si_ridtxt, rc, 0 );
2458                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2459                                 Debug( LDAP_DEBUG_ANY,
2460                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2461                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2462                         }
2463                         op->o_bd = be;
2464                 } else if ( !dni.renamed ) {
2465                         Debug( LDAP_DEBUG_SYNC,
2466                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2467                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2468                 }
2469                 goto done;
2470         case LDAP_SYNC_DELETE :
2471                 if ( !BER_BVISNULL( &dni.dn ) ) {
2472                         op->o_req_dn = dni.dn;
2473                         op->o_req_ndn = dni.ndn;
2474                         op->o_tag = LDAP_REQ_DELETE;
2475                         op->o_bd = si->si_wbe;
2476                         rc = op->o_bd->be_delete( op, &rs_delete );
2477                         Debug( LDAP_DEBUG_SYNC,
2478                                         "syncrepl_entry: %s be_delete (%d)\n",
2479                                         si->si_ridtxt, rc, 0 );
2480
2481                         while ( rs_delete.sr_err == LDAP_SUCCESS
2482                                 && op->o_delete_glue_parent ) {
2483                                 op->o_delete_glue_parent = 0;
2484                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2485                                         slap_callback cb = { NULL };
2486                                         cb.sc_response = slap_null_cb;
2487                                         dnParent( &op->o_req_ndn, &pdn );
2488                                         op->o_req_dn = pdn;
2489                                         op->o_req_ndn = pdn;
2490                                         op->o_callback = &cb;
2491                                         op->o_bd->be_delete( op, &rs_delete );
2492                                 } else {
2493                                         break;
2494                                 }
2495                         }
2496                         op->o_bd = be;
2497                 }
2498                 goto done;
2499
2500         default :
2501                 Debug( LDAP_DEBUG_ANY,
2502                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2503                 goto done;
2504         }
2505
2506 done:
2507         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2508                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2509                 BER_BVZERO( &syncUUID_strrep );
2510         }
2511         if ( !BER_BVISNULL( &dni.ndn ) ) {
2512                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2513         }
2514         if ( !BER_BVISNULL( &dni.dn ) ) {
2515                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2516         }
2517         if ( entry ) {
2518                 entry_free( entry );
2519         }
2520         if ( syncCSN ) {
2521                 slap_graduate_commit_csn( op );
2522         }
2523         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2524                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2525         }
2526         BER_BVZERO( &op->o_csn );
2527         return rc;
2528 }
2529
2530 static struct berval gcbva[] = {
2531         BER_BVC("top"),
2532         BER_BVC("glue"),
2533         BER_BVNULL
2534 };
2535
2536 #define NP_DELETE_ONE   2
2537
2538 static void
2539 syncrepl_del_nonpresent(
2540         Operation *op,
2541         syncinfo_t *si,
2542         BerVarray uuids,
2543         struct sync_cookie *sc,
2544         int m )
2545 {
2546         Backend* be = op->o_bd;
2547         slap_callback   cb = { NULL };
2548         SlapReply       rs_search = {REP_RESULT};
2549         SlapReply       rs_delete = {REP_RESULT};
2550         SlapReply       rs_modify = {REP_RESULT};
2551         struct nonpresent_entry *np_list, *np_prev;
2552         int rc;
2553         AttributeName   an[2];
2554
2555         struct berval pdn = BER_BVNULL;
2556         struct berval csn;
2557
2558         op->o_req_dn = si->si_base;
2559         op->o_req_ndn = si->si_base;
2560
2561         cb.sc_response = nonpresent_callback;
2562         cb.sc_private = si;
2563
2564         op->o_callback = &cb;
2565         op->o_tag = LDAP_REQ_SEARCH;
2566         op->ors_scope = si->si_scope;
2567         op->ors_deref = LDAP_DEREF_NEVER;
2568         op->o_time = slap_get_time();
2569         op->ors_tlimit = SLAP_NO_LIMIT;
2570
2571
2572         if ( uuids ) {
2573                 Filter uf;
2574                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2575                 int i;
2576
2577                 op->ors_attrsonly = 1;
2578                 op->ors_attrs = slap_anlist_no_attrs;
2579                 op->ors_limit = NULL;
2580                 op->ors_filter = &uf;
2581
2582                 uf.f_ava = &eq;
2583                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2584                 uf.f_next = NULL;
2585                 uf.f_choice = LDAP_FILTER_EQUALITY;
2586                 si->si_refreshDelete |= NP_DELETE_ONE;
2587
2588                 for (i=0; uuids[i].bv_val; i++) {
2589                         op->ors_slimit = 1;
2590                         uf.f_av_value = uuids[i];
2591                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2592                         rc = be->be_search( op, &rs_search );
2593                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2594                 }
2595                 si->si_refreshDelete ^= NP_DELETE_ONE;
2596         } else {
2597                 Filter *cf, *of;
2598                 Filter mmf[2];
2599                 AttributeAssertion mmaa;
2600
2601                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2602                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2603                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2604                 op->ors_attrs = an;
2605                 op->ors_slimit = SLAP_NO_LIMIT;
2606                 op->ors_tlimit = SLAP_NO_LIMIT;
2607                 op->ors_limit = NULL;
2608                 op->ors_attrsonly = 0;
2609                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2610                 /* In multimaster, updates can continue to arrive while
2611                  * we're searching. Limit the search result to entries
2612                  * older than our newest cookie CSN.
2613                  */
2614                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2615                         Filter *f;
2616                         int i;
2617
2618                         f = mmf;
2619                         f->f_choice = LDAP_FILTER_AND;
2620                         f->f_next = op->ors_filter;
2621                         f->f_and = f+1;
2622                         of = f->f_and;
2623                         f = of;
2624                         f->f_choice = LDAP_FILTER_LE;
2625                         f->f_ava = &mmaa;
2626                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2627                         f->f_next = NULL;
2628                         BER_BVZERO( &f->f_av_value );
2629                         for ( i=0; i<sc->numcsns; i++ ) {
2630                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2631                                         f->f_av_value = sc->ctxcsn[i];
2632                         }
2633                         of = op->ors_filter;
2634                         op->ors_filter = mmf;
2635                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2636                 } else {
2637                         cf = NULL;
2638                         op->ors_filterstr = si->si_filterstr;
2639                 }
2640                 op->o_nocaching = 1;
2641
2642
2643                 rc = be->be_search( op, &rs_search );
2644                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2645                         op->ors_filter = of;
2646                 }
2647                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2648                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2649                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2650                 }
2651
2652         }
2653
2654         op->o_nocaching = 0;
2655
2656         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2657
2658                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2659                         csn = sc->ctxcsn[m];
2660                 } else {
2661                         csn = si->si_syncCookie.ctxcsn[0];
2662                 }
2663
2664                 op->o_bd = si->si_wbe;
2665                 slap_queue_csn( op, &csn );
2666
2667                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2668                 while ( np_list != NULL ) {
2669                         LDAP_LIST_REMOVE( np_list, npe_link );
2670                         np_prev = np_list;
2671                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2672                         op->o_tag = LDAP_REQ_DELETE;
2673                         op->o_callback = &cb;
2674                         cb.sc_response = null_callback;
2675                         cb.sc_private = si;
2676                         op->o_req_dn = *np_prev->npe_name;
2677                         op->o_req_ndn = *np_prev->npe_nname;
2678                         rc = op->o_bd->be_delete( op, &rs_delete );
2679                         Debug( LDAP_DEBUG_SYNC,
2680                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2681                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2682
2683                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2684                                 Modifications mod1, mod2;
2685                                 mod1.sml_op = LDAP_MOD_REPLACE;
2686                                 mod1.sml_flags = 0;
2687                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2688                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2689                                 mod1.sml_numvals = 2;
2690                                 mod1.sml_values = &gcbva[0];
2691                                 mod1.sml_nvalues = NULL;
2692                                 mod1.sml_next = &mod2;
2693
2694                                 mod2.sml_op = LDAP_MOD_REPLACE;
2695                                 mod2.sml_flags = 0;
2696                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2697                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2698                                 mod2.sml_numvals = 1;
2699                                 mod2.sml_values = &gcbva[1];
2700                                 mod2.sml_nvalues = NULL;
2701                                 mod2.sml_next = NULL;
2702
2703                                 op->o_tag = LDAP_REQ_MODIFY;
2704                                 op->orm_modlist = &mod1;
2705
2706                                 rc = op->o_bd->be_modify( op, &rs_modify );
2707                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2708                         }
2709
2710                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2711                                         op->o_delete_glue_parent ) {
2712                                 op->o_delete_glue_parent = 0;
2713                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2714                                         slap_callback cb = { NULL };
2715                                         cb.sc_response = slap_null_cb;
2716                                         dnParent( &op->o_req_ndn, &pdn );
2717                                         op->o_req_dn = pdn;
2718                                         op->o_req_ndn = pdn;
2719                                         op->o_callback = &cb;
2720                                         /* give it a root privil ? */
2721                                         op->o_bd->be_delete( op, &rs_delete );
2722                                 } else {
2723                                         break;
2724                                 }
2725                         }
2726
2727                         op->o_delete_glue_parent = 0;
2728
2729                         ber_bvfree( np_prev->npe_name );
2730                         ber_bvfree( np_prev->npe_nname );
2731                         ch_free( np_prev );
2732
2733                         if ( slapd_shutdown ) {
2734                                 break;
2735                         }
2736                 }
2737
2738                 slap_graduate_commit_csn( op );
2739                 op->o_bd = be;
2740
2741                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2742                 BER_BVZERO( &op->o_csn );
2743         }
2744
2745         return;
2746 }
2747
2748 int
2749 syncrepl_add_glue(
2750         Operation* op,
2751         Entry *e )
2752 {
2753         Backend *be = op->o_bd;
2754         slap_callback cb = { NULL };
2755         Attribute       *a;
2756         int     rc;
2757         int suffrdns;
2758         int i;
2759         struct berval dn = BER_BVNULL;
2760         struct berval ndn = BER_BVNULL;
2761         Entry   *glue;
2762         SlapReply       rs_add = {REP_RESULT};
2763         struct berval   ptr, nptr;
2764         char            *comma;
2765
2766         op->o_tag = LDAP_REQ_ADD;
2767         op->o_callback = &cb;
2768         cb.sc_response = null_callback;
2769         cb.sc_private = NULL;
2770
2771         dn = e->e_name;
2772         ndn = e->e_nname;
2773
2774         /* count RDNs in suffix */
2775         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2776                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2777                         comma++;
2778                         ptr.bv_len -= comma - ptr.bv_val;
2779                         ptr.bv_val = comma;
2780                         i++;
2781                 }
2782                 suffrdns = i;
2783         } else {
2784                 /* suffix is "" */
2785                 suffrdns = 0;
2786         }
2787
2788         /* Start with BE suffix */
2789         ptr = dn;
2790         for ( i = 0; i < suffrdns; i++ ) {
2791                 comma = ber_bvrchr( &ptr, ',' );
2792                 if ( comma != NULL ) {
2793                         ptr.bv_len = comma - ptr.bv_val;
2794                 } else {
2795                         ptr.bv_len = 0;
2796                         break;
2797                 }
2798         }
2799
2800         if ( !BER_BVISEMPTY( &ptr ) ) {
2801                 dn.bv_len -= ptr.bv_len + 1;
2802                 dn.bv_val += ptr.bv_len + 1;
2803         }
2804
2805         /* the normalizedDNs are always the same length, no counting
2806          * required.
2807          */
2808         nptr = ndn;
2809         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2810                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2811                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2812
2813                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2814
2815         } else {
2816                 nptr.bv_len = 0;
2817         }
2818
2819         while ( ndn.bv_val > e->e_nname.bv_val ) {
2820                 glue = entry_alloc();
2821                 ber_dupbv( &glue->e_name, &dn );
2822                 ber_dupbv( &glue->e_nname, &ndn );
2823
2824                 a = attr_alloc( slap_schema.si_ad_objectClass );
2825
2826                 a->a_numvals = 2;
2827                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2828                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2829                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2830                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2831
2832                 a->a_nvals = a->a_vals;
2833
2834                 a->a_next = glue->e_attrs;
2835                 glue->e_attrs = a;
2836
2837                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2838
2839                 a->a_numvals = 1;
2840                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2841                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2842                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2843
2844                 a->a_nvals = a->a_vals;
2845
2846                 a->a_next = glue->e_attrs;
2847                 glue->e_attrs = a;
2848
2849                 op->o_req_dn = glue->e_name;
2850                 op->o_req_ndn = glue->e_nname;
2851                 op->ora_e = glue;
2852                 rc = be->be_add ( op, &rs_add );
2853                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2854                         if ( op->ora_e == glue )
2855                                 be_entry_release_w( op, glue );
2856                 } else {
2857                 /* incl. ALREADY EXIST */
2858                         entry_free( glue );
2859                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2860                                 entry_free( e );
2861                                 return rc;
2862                         }
2863                 }
2864
2865                 /* Move to next child */
2866                 comma = ber_bvrchr( &ptr, ',' );
2867                 if ( comma == NULL ) {
2868                         break;
2869                 }
2870                 ptr.bv_len = comma - ptr.bv_val;
2871
2872                 dn.bv_val = ++comma;
2873                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2874
2875                 comma = ber_bvrchr( &nptr, ',' );
2876                 assert( comma != NULL );
2877                 nptr.bv_len = comma - nptr.bv_val;
2878
2879                 ndn.bv_val = ++comma;
2880                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2881         }
2882
2883         op->o_req_dn = e->e_name;
2884         op->o_req_ndn = e->e_nname;
2885         op->ora_e = e;
2886         rc = be->be_add ( op, &rs_add );
2887         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2888                 if ( op->ora_e == e )
2889                         be_entry_release_w( op, e );
2890         } else {
2891                 entry_free( e );
2892         }
2893
2894         return rc;
2895 }
2896
2897 static int
2898 syncrepl_updateCookie(
2899         syncinfo_t *si,
2900         Operation *op,
2901         struct berval *pdn,
2902         struct sync_cookie *syncCookie )
2903 {
2904         Backend *be = op->o_bd;
2905         Modifications mod;
2906         struct berval first = BER_BVNULL;
2907 #ifdef CHECK_CSN
2908         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
2909 #endif
2910
2911         int rc, i, j;
2912         ber_len_t len;
2913
2914         slap_callback cb = { NULL };
2915         SlapReply       rs_modify = {REP_RESULT};
2916
2917         mod.sml_op = LDAP_MOD_REPLACE;
2918         mod.sml_desc = slap_schema.si_ad_contextCSN;
2919         mod.sml_type = mod.sml_desc->ad_cname;
2920         mod.sml_flags = SLAP_MOD_INTERNAL;
2921         mod.sml_nvalues = NULL;
2922         mod.sml_next = NULL;
2923
2924         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2925
2926 #ifdef CHECK_CSN
2927         for ( i=0; i<syncCookie->numcsns; i++ ) {
2928                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
2929         }
2930         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2931                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
2932         }
2933 #endif
2934
2935         /* clone the cookieState CSNs so we can Replace the whole thing */
2936         mod.sml_numvals = si->si_cookieState->cs_num;
2937         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2938         for ( i=0; i<mod.sml_numvals; i++ )
2939                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2940         BER_BVZERO( &mod.sml_values[i] );
2941
2942         /* find any CSNs in the syncCookie that are newer than the cookieState */
2943         for ( i=0; i<syncCookie->numcsns; i++ ) {
2944                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2945                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2946                                 continue;
2947                         len = syncCookie->ctxcsn[i].bv_len;
2948                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2949                                 len = si->si_cookieState->cs_vals[j].bv_len;
2950                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2951                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2952                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2953                                 if ( BER_BVISNULL( &first ) ) {
2954                                         first = syncCookie->ctxcsn[i];
2955
2956                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2957                                 {
2958                                         first = syncCookie->ctxcsn[i];
2959                                 }
2960                         }
2961                         break;
2962                 }
2963                 /* there was no match for this SID, it's a new CSN */
2964                 if ( j == si->si_cookieState->cs_num ) {
2965                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2966                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2967                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2968                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2969                         if ( BER_BVISNULL( &first ) ) {
2970                                 first = syncCookie->ctxcsn[i];
2971                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2972                         {
2973                                 first = syncCookie->ctxcsn[i];
2974                         }
2975                 }
2976         }
2977         /* Should never happen, ITS#5065 */
2978         if ( BER_BVISNULL( &first )) {
2979                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2980                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2981                 return 0;
2982         }
2983         op->o_bd = si->si_wbe;
2984         slap_queue_csn( op, &first );
2985
2986         op->o_tag = LDAP_REQ_MODIFY;
2987
2988         cb.sc_response = null_callback;
2989         cb.sc_private = si;
2990
2991         op->o_callback = &cb;
2992         op->o_req_dn = op->o_bd->be_suffix[0];
2993         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2994
2995         /* update contextCSN */
2996         op->o_dont_replicate = 1;
2997
2998         op->orm_modlist = &mod;
2999         op->orm_no_opattrs = 1;
3000         rc = op->o_bd->be_modify( op, &rs_modify );
3001         op->orm_no_opattrs = 0;
3002         op->o_dont_replicate = 0;
3003
3004         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
3005                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
3006                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
3007                 /* If we replaced any old values */
3008                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3009                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
3010                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
3011                                                 &mod.sml_values[i] );
3012                 }
3013                 /* Handle any added values */
3014                 if ( i < mod.sml_numvals ) {
3015                         si->si_cookieState->cs_num = mod.sml_numvals;
3016                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
3017                         free( si->si_cookieState->cs_sids );
3018                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
3019                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
3020                 }
3021
3022                 si->si_cookieState->cs_age++;
3023                 si->si_cookieAge = si->si_cookieState->cs_age;
3024         } else {
3025                 Debug( LDAP_DEBUG_ANY,
3026                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3027                         si->si_ridtxt, rs_modify.sr_err, 0 );
3028         }
3029         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3030
3031         op->o_bd = be;
3032         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3033         BER_BVZERO( &op->o_csn );
3034         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3035         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3036
3037 #ifdef CHECK_CSN
3038         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3039                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3040         }
3041 #endif
3042
3043         return rc;
3044 }
3045
3046 static void
3047 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3048         Modifications ***mret, Modifications ***mcur )
3049 {
3050         int i, j;
3051         Modifications *mod, **modtail;
3052
3053         modtail = *mret;
3054
3055         if ( old ) {
3056                 int n, o, nn, no;
3057                 struct berval **adds, **dels;
3058                 /* count old and new */
3059                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3060                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3061
3062                 /* there MUST be both old and new values */
3063                 assert( o != 0 );
3064                 assert( n != 0 );
3065                 j = 0;
3066
3067                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3068                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3069
3070                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3071                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3072
3073                 nn = n; no = o;
3074
3075                 for ( i=0; i<o; i++ ) {
3076                         for ( j=0; j<n; j++ ) {
3077                                 if ( !adds[j] )
3078                                         continue;
3079                                 if ( bvmatch( dels[i], adds[j] ) ) {
3080                                         no--;
3081                                         nn--;
3082                                         adds[j] = NULL;
3083                                         dels[i] = NULL;
3084                                         break;
3085                                 }
3086                         }
3087                 }
3088
3089                 /* Don't delete/add an objectClass, always use the replace op.
3090                  * Modify would fail if provider has replaced entry with a new,
3091                  * and the new explicitly includes a superior of a class that was
3092                  * only included implicitly in the old entry.  Ref ITS#5517.
3093                  *
3094                  * Also use replace op if attr has no equality matching rule.
3095                  * (ITS#5781)
3096                  */
3097                 if ( nn && no < o &&
3098                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3099                          !old->a_desc->ad_type->sat_equality ))
3100                         no = o;
3101
3102                 i = j;
3103                 /* all old values were deleted, just use the replace op */
3104                 if ( no == o ) {
3105                         i = j-1;
3106                 } else if ( no ) {
3107                 /* delete some values */
3108                         mod = ch_malloc( sizeof( Modifications ) );
3109                         mod->sml_op = LDAP_MOD_DELETE;
3110                         mod->sml_flags = 0;
3111                         mod->sml_desc = old->a_desc;
3112                         mod->sml_type = mod->sml_desc->ad_cname;
3113                         mod->sml_numvals = no;
3114                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3115                         if ( old->a_vals != old->a_nvals ) {
3116                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3117                         } else {
3118                                 mod->sml_nvalues = NULL;
3119                         }
3120                         j = 0;
3121                         for ( i = 0; i < o; i++ ) {
3122                                 if ( !dels[i] ) continue;
3123                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3124                                 if ( mod->sml_nvalues ) {
3125                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3126                                 }
3127                                 j++;
3128                         }
3129                         BER_BVZERO( &mod->sml_values[j] );
3130                         if ( mod->sml_nvalues ) {
3131                                 BER_BVZERO( &mod->sml_nvalues[j] );
3132                         }
3133                         *modtail = mod;
3134                         modtail = &mod->sml_next;
3135                         i = j;
3136                 }
3137                 op->o_tmpfree( dels, op->o_tmpmemctx );
3138                 /* some values were added */
3139                 if ( nn && no < o ) {
3140                         mod = ch_malloc( sizeof( Modifications ) );
3141                         mod->sml_op = LDAP_MOD_ADD;
3142                         mod->sml_flags = 0;
3143                         mod->sml_desc = old->a_desc;
3144                         mod->sml_type = mod->sml_desc->ad_cname;
3145                         mod->sml_numvals = nn;
3146                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3147                         if ( old->a_vals != old->a_nvals ) {
3148                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3149                         } else {
3150                                 mod->sml_nvalues = NULL;
3151                         }
3152                         j = 0;
3153                         for ( i = 0; i < n; i++ ) {
3154                                 if ( !adds[i] ) continue;
3155                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3156                                 if ( mod->sml_nvalues ) {
3157                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3158                                 }
3159                                 j++;
3160                         }
3161                         BER_BVZERO( &mod->sml_values[j] );
3162                         if ( mod->sml_nvalues ) {
3163                                 BER_BVZERO( &mod->sml_nvalues[j] );
3164                         }
3165                         *modtail = mod;
3166                         modtail = &mod->sml_next;
3167                         i = j;
3168                 }
3169                 op->o_tmpfree( adds, op->o_tmpmemctx );
3170         } else {
3171                 /* new attr, just use the new mod */
3172                 i = 0;
3173                 j = 1;
3174         }
3175         /* advance to next element */
3176         mod = **mcur;
3177         if ( mod ) {
3178                 if ( i != j ) {
3179                         **mcur = mod->sml_next;
3180                         *modtail = mod;
3181                         modtail = &mod->sml_next;
3182                 } else {
3183                         *mcur = &mod->sml_next;
3184                 }
3185         }
3186         *mret = modtail;
3187 }
3188
3189 static int
3190 dn_callback(
3191         Operation*      op,
3192         SlapReply*      rs )
3193 {
3194         dninfo *dni = op->o_callback->sc_private;
3195
3196         if ( rs->sr_type == REP_SEARCH ) {
3197                 if ( !BER_BVISNULL( &dni->dn ) ) {
3198                         Debug( LDAP_DEBUG_ANY,
3199                                 "dn_callback : consistency error - "
3200                                 "entryUUID is not unique\n", 0, 0, 0 );
3201                 } else {
3202                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3203                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3204                         /* If there is a new entry, see if it differs from the old.
3205                          * We compare the non-normalized values so that cosmetic changes
3206                          * in the provider are always propagated.
3207                          */
3208                         if ( dni->new_entry ) {
3209                                 Modifications **modtail, **ml;
3210                                 Attribute *old, *new;
3211                                 struct berval old_rdn, new_rdn;
3212                                 struct berval old_p, new_p;
3213                                 int is_ctx, new_sup = 0;
3214
3215                                 /* If old entry is not a glue entry, make sure new entry
3216                                  * is actually newer than old entry
3217                                  */
3218                                 if ( !is_entry_glue( rs->sr_entry )) {
3219                                         old = attr_find( rs->sr_entry->e_attrs,
3220                                                 slap_schema.si_ad_entryCSN );
3221                                         new = attr_find( dni->new_entry->e_attrs,
3222                                                 slap_schema.si_ad_entryCSN );
3223                                         if ( new && old ) {
3224                                                 int rc;
3225                                                 ber_len_t len = old->a_vals[0].bv_len;
3226                                                 if ( len > new->a_vals[0].bv_len )
3227                                                         len = new->a_vals[0].bv_len;
3228                                                 rc = memcmp( old->a_vals[0].bv_val,
3229                                                         new->a_vals[0].bv_val, len );
3230                                                 if ( rc > 0 ) {
3231                                                         Debug( LDAP_DEBUG_SYNC,
3232                                                                 "dn_callback : new entry is older than ours "
3233                                                                 "%s ours %s, new %s\n",
3234                                                                 rs->sr_entry->e_name.bv_val,
3235                                                                 old->a_vals[0].bv_val,
3236                                                                 new->a_vals[0].bv_val );
3237                                                         return LDAP_SUCCESS;
3238                                                 } else if ( rc == 0 ) {
3239                                                         Debug( LDAP_DEBUG_SYNC,
3240                                                                 "dn_callback : entries have identical CSN "
3241                                                                 "%s %s\n",
3242                                                                 rs->sr_entry->e_name.bv_val,
3243                                                                 old->a_vals[0].bv_val, 0 );
3244                                                         return LDAP_SUCCESS;
3245                                                 }
3246                                         }
3247                                 }
3248
3249                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3250                                         &op->o_bd->be_nsuffix[0] );
3251
3252                                 /* Did the DN change?
3253                                  * case changes in the parent are ignored,
3254                                  * we only want to know if the RDN was
3255                                  * actually changed.
3256                                  */
3257                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3258                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3259                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3260                                 dnParent( &dni->new_entry->e_nname, &new_p );
3261
3262                                 new_sup = !dn_match( &old_p, &new_p );
3263                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3264                                 {
3265                                         struct berval oldRDN, oldVal;
3266                                         AttributeDescription *ad = NULL;
3267                                         int oldpos, newpos;
3268                                         Attribute *a;
3269
3270                                         dni->renamed = 1;
3271                                         if ( new_sup )
3272                                                 dni->nnewSup = new_p;
3273
3274                                         /* See if the oldRDN was deleted */
3275                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3276                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3277                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3278                                                 oldRDN.bv_val );
3279                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3280                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3281                                         dni->oldDesc = ad;
3282                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3283                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3284                                         dni->oldNattr = a;
3285                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3286                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3287                                         if ( !a || oldpos != newpos || attr_valfind( a,
3288                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3289                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3290                                                 SLAP_MR_VALUE_OF_SYNTAX,
3291                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3292                                         {
3293                                                 dni->delOldRDN = 1;
3294                                         }
3295                                         /* Get the newRDN's desc */
3296                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3297                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3298                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3299                                         ad = NULL;
3300                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3301                                         dni->newDesc = ad;
3302
3303                                         /* A ModDN has happened, but in Refresh mode other
3304                                          * changes may have occurred before we picked it up.
3305                                          * So fallthru to regular Modify processing.
3306                                          */
3307                                 }
3308
3309                                 modtail = &dni->mods;
3310                                 ml = dni->modlist;
3311
3312                                 /* We assume that attributes are saved in the same order
3313                                  * in the remote and local databases. So if we walk through
3314                                  * the attributeDescriptions one by one they should match in
3315                                  * lock step. If not, look for an add or delete.
3316                                  */
3317                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3318                                                 old && new; )
3319                                 {
3320                                         /* If we've seen this before, use its mod now */
3321                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3322                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3323                                                 new = new->a_next;
3324                                                 continue;
3325                                         }
3326                                         /* Skip contextCSN */
3327                                         if ( is_ctx && old->a_desc ==
3328                                                 slap_schema.si_ad_contextCSN ) {
3329                                                 old = old->a_next;
3330                                                 continue;
3331                                         }
3332
3333                                         if ( old->a_desc != new->a_desc ) {
3334                                                 Modifications *mod;
3335                                                 Attribute *tmp;
3336
3337                                                 /* If it's just been re-added later,
3338                                                  * remember that we've seen it.
3339                                                  */
3340                                                 tmp = attr_find( new, old->a_desc );
3341                                                 if ( tmp ) {
3342                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3343                                                 } else {
3344                                                         /* If it's a new attribute, pull it in.
3345                                                          */
3346                                                         tmp = attr_find( old, new->a_desc );
3347                                                         if ( !tmp ) {
3348                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3349                                                                 new = new->a_next;
3350                                                                 continue;
3351                                                         }
3352                                                         /* Delete old attr */
3353                                                         mod = ch_malloc( sizeof( Modifications ) );
3354                                                         mod->sml_op = LDAP_MOD_DELETE;
3355                                                         mod->sml_flags = 0;
3356                                                         mod->sml_desc = old->a_desc;
3357                                                         mod->sml_type = mod->sml_desc->ad_cname;
3358                                                         mod->sml_numvals = 0;
3359                                                         mod->sml_values = NULL;
3360                                                         mod->sml_nvalues = NULL;
3361                                                         *modtail = mod;
3362                                                         modtail = &mod->sml_next;
3363                                                 }
3364                                                 old = old->a_next;
3365                                                 continue;
3366                                         }
3367                                         /* kludge - always update modifiersName so that it
3368                                          * stays co-located with the other mod opattrs. But only
3369                                          * if we know there are other valid mods.
3370                                          */
3371                                         if ( dni->mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3372                                                 old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3373                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3374                                         else
3375                                                 attr_cmp( op, old, new, &modtail, &ml );
3376                                         new = new->a_next;
3377                                         old = old->a_next;
3378                                 }
3379                                 *modtail = *ml;
3380                                 *ml = NULL;
3381                         }
3382                 }
3383         } else if ( rs->sr_type == REP_RESULT ) {
3384                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3385                         Debug( LDAP_DEBUG_ANY,
3386                                 "dn_callback : consistency error - "
3387                                 "entryUUID is not unique\n", 0, 0, 0 );
3388                 }
3389         }
3390
3391         return LDAP_SUCCESS;
3392 }
3393
3394 static int
3395 nonpresent_callback(
3396         Operation*      op,
3397         SlapReply*      rs )
3398 {
3399         syncinfo_t *si = op->o_callback->sc_private;
3400         Attribute *a;
3401         int count = 0;
3402         struct berval* present_uuid = NULL;
3403         struct nonpresent_entry *np_entry;
3404
3405         if ( rs->sr_type == REP_RESULT ) {
3406                 count = avl_free( si->si_presentlist, ch_free );
3407                 si->si_presentlist = NULL;
3408
3409         } else if ( rs->sr_type == REP_SEARCH ) {
3410                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3411                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3412
3413                         if ( a ) {
3414                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3415                                         syncuuid_cmp );
3416                         }
3417
3418                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3419                                 char buf[sizeof("rid=999 non")];
3420
3421                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3422                                         present_uuid ? "" : "non" );
3423
3424                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3425                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3426                         }
3427
3428                         if ( a == NULL ) return 0;
3429                 }
3430
3431                 if ( present_uuid == NULL ) {
3432                         np_entry = (struct nonpresent_entry *)
3433                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3434                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3435                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3436                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3437
3438                 } else {
3439                         avl_delete( &si->si_presentlist,
3440                                 &a->a_nvals[0], syncuuid_cmp );
3441                         ch_free( present_uuid );
3442                 }
3443         }
3444         return LDAP_SUCCESS;
3445 }
3446
3447 static int
3448 null_callback(
3449         Operation*      op,
3450         SlapReply*      rs )
3451 {
3452         if ( rs->sr_err != LDAP_SUCCESS &&
3453                 rs->sr_err != LDAP_REFERRAL &&
3454                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3455                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3456                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3457         {
3458                 Debug( LDAP_DEBUG_ANY,
3459                         "null_callback : error code 0x%x\n",
3460                         rs->sr_err, 0, 0 );
3461         }
3462         return LDAP_SUCCESS;
3463 }
3464
3465 static struct berval *
3466 slap_uuidstr_from_normalized(
3467         struct berval* uuidstr,
3468         struct berval* normalized,
3469         void *ctx )
3470 {
3471 #if 0
3472         struct berval *new;
3473         unsigned char nibble;
3474         int i, d = 0;
3475
3476         if ( normalized == NULL ) return NULL;
3477         if ( normalized->bv_len != 16 ) return NULL;
3478
3479         if ( uuidstr ) {
3480                 new = uuidstr;
3481         } else {
3482                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3483                 if ( new == NULL ) {
3484                         return NULL;
3485                 }
3486         }
3487
3488         new->bv_len = 36;
3489
3490         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3491                 if ( new != uuidstr ) {
3492                         slap_sl_free( new, ctx );
3493                 }
3494                 return NULL;
3495         }
3496
3497         for ( i = 0; i < 16; i++ ) {
3498                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3499                         new->bv_val[(i<<1)+d] = '-';
3500                         d += 1;
3501                 }
3502
3503                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3504                 if ( nibble < 10 ) {
3505                         new->bv_val[(i<<1)+d] = nibble + '0';
3506                 } else {
3507                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3508                 }
3509
3510                 nibble = (normalized->bv_val[i]) & 0xF;
3511                 if ( nibble < 10 ) {
3512                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3513                 } else {
3514                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3515                 }
3516         }
3517
3518         new->bv_val[new->bv_len] = '\0';
3519         return new;
3520 #endif
3521
3522         struct berval   *new;
3523         int             rc = 0;
3524
3525         if ( normalized == NULL ) return NULL;
3526         if ( normalized->bv_len != 16 ) return NULL;
3527
3528         if ( uuidstr ) {
3529                 new = uuidstr;
3530
3531         } else {
3532                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3533                 if ( new == NULL ) {
3534                         return NULL;
3535                 }
3536         }
3537
3538         new->bv_len = 36;
3539
3540         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3541                 rc = 1;
3542                 goto done;
3543         }
3544
3545         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3546                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3547
3548 done:;
3549         if ( rc == -1 ) {
3550                 if ( new != NULL ) {
3551                         if ( new->bv_val != NULL ) {
3552                                 slap_sl_free( new->bv_val, ctx );
3553                         }
3554
3555                         if ( new != uuidstr ) {
3556                                 slap_sl_free( new, ctx );
3557                         }
3558                 }
3559                 new = NULL;
3560
3561         } else {
3562                 new->bv_len = rc;
3563         }
3564
3565         return new;
3566 }
3567
3568 static int
3569 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3570 {
3571         const struct berval *uuid1 = v_uuid1;
3572         const struct berval *uuid2 = v_uuid2;
3573         int rc = uuid1->bv_len - uuid2->bv_len;
3574         if ( rc ) return rc;
3575         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3576 }
3577
3578 void
3579 syncinfo_free( syncinfo_t *sie, int free_all )
3580 {
3581         syncinfo_t *si_next;
3582
3583         if ( free_all && sie->si_cookieState ) {
3584                 ch_free( sie->si_cookieState->cs_sids );
3585                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3586                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3587                 ch_free( sie->si_cookieState );
3588         }
3589         do {
3590                 si_next = sie->si_next;
3591
3592                 if ( sie->si_ld ) {
3593                         if ( sie->si_conn ) {
3594                                 connection_client_stop( sie->si_conn );
3595                                 sie->si_conn = NULL;
3596                         }
3597                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3598                 }
3599
3600                 /* re-fetch it, in case it was already removed */
3601                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3602                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3603                 if ( sie->si_re ) {
3604                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3605                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3606                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3607                 }
3608
3609                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3610                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3611
3612                 bindconf_free( &sie->si_bindconf );
3613
3614                 if ( sie->si_filterstr.bv_val ) {
3615                         ch_free( sie->si_filterstr.bv_val );
3616                 }
3617                 if ( sie->si_logfilterstr.bv_val ) {
3618                         ch_free( sie->si_logfilterstr.bv_val );
3619                 }
3620                 if ( sie->si_base.bv_val ) {
3621                         ch_free( sie->si_base.bv_val );
3622                 }
3623                 if ( sie->si_logbase.bv_val ) {
3624                         ch_free( sie->si_logbase.bv_val );
3625                 }
3626                 if ( sie->si_attrs ) {
3627                         int i = 0;
3628                         while ( sie->si_attrs[i] != NULL ) {
3629                                 ch_free( sie->si_attrs[i] );
3630                                 i++;
3631                         }
3632                         ch_free( sie->si_attrs );
3633                 }
3634                 if ( sie->si_exattrs ) {
3635                         int i = 0;
3636                         while ( sie->si_exattrs[i] != NULL ) {
3637                                 ch_free( sie->si_exattrs[i] );
3638                                 i++;
3639                         }
3640                         ch_free( sie->si_exattrs );
3641                 }
3642                 if ( sie->si_anlist ) {
3643                         int i = 0;
3644                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3645                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3646                                 i++;
3647                         }
3648                         ch_free( sie->si_anlist );
3649                 }
3650                 if ( sie->si_exanlist ) {
3651                         int i = 0;
3652                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3653                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3654                                 i++;
3655                         }
3656                         ch_free( sie->si_exanlist );
3657                 }
3658                 if ( sie->si_retryinterval ) {
3659                         ch_free( sie->si_retryinterval );
3660                 }
3661                 if ( sie->si_retrynum ) {
3662                         ch_free( sie->si_retrynum );
3663                 }
3664                 if ( sie->si_retrynum_init ) {
3665                         ch_free( sie->si_retrynum_init );
3666                 }
3667                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3668                 if ( sie->si_presentlist ) {
3669                     avl_free( sie->si_presentlist, ch_free );
3670                 }
3671                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3672                         struct nonpresent_entry* npe;
3673                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3674                         LDAP_LIST_REMOVE( npe, npe_link );
3675                         if ( npe->npe_name ) {
3676                                 if ( npe->npe_name->bv_val ) {
3677                                         ch_free( npe->npe_name->bv_val );
3678                                 }
3679                                 ch_free( npe->npe_name );
3680                         }
3681                         if ( npe->npe_nname ) {
3682                                 if ( npe->npe_nname->bv_val ) {
3683                                         ch_free( npe->npe_nname->bv_val );
3684                                 }
3685                                 ch_free( npe->npe_nname );
3686                         }
3687                         ch_free( npe );
3688                 }
3689                 ch_free( sie );
3690                 sie = si_next;
3691         } while ( free_all && si_next );
3692 }
3693
3694
3695
3696 /* NOTE: used & documented in slapd.conf(5) */
3697 #define IDSTR                   "rid"
3698 #define PROVIDERSTR             "provider"
3699 #define SCHEMASTR               "schemachecking"
3700 #define FILTERSTR               "filter"
3701 #define SEARCHBASESTR           "searchbase"
3702 #define SCOPESTR                "scope"
3703 #define ATTRSONLYSTR            "attrsonly"
3704 #define ATTRSSTR                "attrs"
3705 #define TYPESTR                 "type"
3706 #define INTERVALSTR             "interval"
3707 #define RETRYSTR                "retry"
3708 #define SLIMITSTR               "sizelimit"
3709 #define TLIMITSTR               "timelimit"
3710 #define SYNCDATASTR             "syncdata"
3711 #define LOGBASESTR              "logbase"
3712 #define LOGFILTERSTR    "logfilter"
3713
3714 /* FIXME: undocumented */
3715 #define EXATTRSSTR              "exattrs"
3716 #define MANAGEDSAITSTR          "manageDSAit"
3717
3718 /* mandatory */
3719 enum {
3720         GOT_RID                 = 0x00000001U,
3721         GOT_PROVIDER            = 0x00000002U,
3722         GOT_SCHEMACHECKING      = 0x00000004U,
3723         GOT_FILTER              = 0x00000008U,
3724         GOT_SEARCHBASE          = 0x00000010U,
3725         GOT_SCOPE               = 0x00000020U,
3726         GOT_ATTRSONLY           = 0x00000040U,
3727         GOT_ATTRS               = 0x00000080U,
3728         GOT_TYPE                = 0x00000100U,
3729         GOT_INTERVAL            = 0x00000200U,
3730         GOT_RETRY               = 0x00000400U,
3731         GOT_SLIMIT              = 0x00000800U,
3732         GOT_TLIMIT              = 0x00001000U,
3733         GOT_SYNCDATA            = 0x00002000U,
3734         GOT_LOGBASE             = 0x00004000U,
3735         GOT_LOGFILTER           = 0x00008000U,
3736         GOT_EXATTRS             = 0x00010000U,
3737         GOT_MANAGEDSAIT         = 0x00020000U,
3738         GOT_BINDCONF            = 0x00040000U,
3739
3740 /* check */
3741         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3742 };
3743
3744 static struct {
3745         struct berval key;
3746         int val;
3747 } scopes[] = {
3748         { BER_BVC("base"), LDAP_SCOPE_BASE },
3749         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3750         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3751         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3752         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3753         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3754         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3755         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3756         { BER_BVNULL, 0 }
3757 };
3758
3759 static slap_verbmasks datamodes[] = {
3760         { BER_BVC("default"), SYNCDATA_DEFAULT },
3761         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3762         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3763         { BER_BVNULL, 0 }
3764 };
3765
3766 static int
3767 parse_syncrepl_retry(
3768         ConfigArgs      *c,
3769         char            *arg,
3770         syncinfo_t      *si )
3771 {
3772         char **retry_list;
3773         int j, k, n;
3774         int use_default = 0;
3775
3776         char *val = arg + STRLENOF( RETRYSTR "=" );
3777         if ( strcasecmp( val, "undefined" ) == 0 ) {
3778                 val = "3600 +";
3779                 use_default = 1;
3780         }
3781
3782         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3783         retry_list[0] = NULL;
3784
3785         slap_str2clist( &retry_list, val, " ,\t" );
3786
3787         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3788         n = k / 2;
3789         if ( k % 2 ) {
3790                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3791                         "Error: incomplete syncrepl retry list" );
3792                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3793                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3794                         ch_free( retry_list[k] );
3795                 }
3796                 ch_free( retry_list );
3797                 return 1;
3798         }
3799         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3800         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3801         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3802         for ( j = 0; j < n; j++ ) {
3803                 unsigned long   t;
3804                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3805                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3806                                 "Error: invalid retry interval \"%s\" (#%d)",
3807                                 retry_list[j*2], j );
3808                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3809                         /* do some cleanup */
3810                         return 1;
3811                 }
3812                 si->si_retryinterval[j] = (time_t)t;
3813                 if ( *retry_list[j*2+1] == '+' ) {
3814                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3815                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3816                         j++;
3817                         break;
3818                 } else {
3819                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3820                                         || si->si_retrynum_init[j] <= 0 )
3821                         {
3822                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3823                                         "Error: invalid initial retry number \"%s\" (#%d)",
3824                                         retry_list[j*2+1], j );
3825                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3826                                 /* do some cleanup */
3827                                 return 1;
3828                         }
3829                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3830                                         || si->si_retrynum[j] <= 0 )
3831                         {
3832                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3833                                         "Error: invalid retry number \"%s\" (#%d)",
3834                                         retry_list[j*2+1], j );
3835                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3836                                 /* do some cleanup */
3837                                 return 1;
3838                         }
3839                 }
3840         }
3841         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3842         si->si_retrynum[j] = RETRYNUM_TAIL;
3843         si->si_retryinterval[j] = 0;
3844
3845         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3846                 ch_free( retry_list[k] );
3847         }
3848         ch_free( retry_list );
3849         if ( !use_default ) {
3850                 si->si_got |= GOT_RETRY;
3851         }
3852
3853         return 0;
3854 }
3855
3856 static int
3857 parse_syncrepl_line(
3858         ConfigArgs      *c,
3859         syncinfo_t      *si )
3860 {
3861         int     i;
3862         char    *val;
3863
3864         for ( i = 1; i < c->argc; i++ ) {
3865                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3866                                         STRLENOF( IDSTR "=" ) ) )
3867                 {
3868                         int tmp;
3869                         /* '\0' string terminator accounts for '=' */
3870                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3871                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3872                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3873                                         "Error: parse_syncrepl_line: "
3874                                         "unable to parse syncrepl id \"%s\"", val );
3875                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3876                                 return -1;
3877                         }
3878                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3879                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3880                                         "Error: parse_syncrepl_line: "
3881                                         "syncrepl id %d is out of range [0..4095]", tmp );
3882                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3883                                 return -1;
3884                         }
3885                         si->si_rid = tmp;
3886                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3887                         si->si_got |= GOT_RID;
3888                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3889                                         STRLENOF( PROVIDERSTR "=" ) ) )
3890                 {
3891                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3892                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3893                         si->si_got |= GOT_PROVIDER;
3894                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3895                                         STRLENOF( SCHEMASTR "=" ) ) )
3896                 {
3897                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3898                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3899                                 si->si_schemachecking = 1;
3900                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3901                                 si->si_schemachecking = 0;
3902                         } else {
3903                                 si->si_schemachecking = 1;
3904                         }
3905                         si->si_got |= GOT_SCHEMACHECKING;
3906                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3907                                         STRLENOF( FILTERSTR "=" ) ) )
3908                 {
3909                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3910                         if ( si->si_filterstr.bv_val )
3911                                 ch_free( si->si_filterstr.bv_val );
3912                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3913                         si->si_got |= GOT_FILTER;
3914                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3915                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3916                 {
3917                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3918                         if ( si->si_logfilterstr.bv_val )
3919                                 ch_free( si->si_logfilterstr.bv_val );
3920                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3921                         si->si_got |= GOT_LOGFILTER;
3922                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3923                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3924                 {
3925                         struct berval   bv;
3926                         int             rc;
3927
3928                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3929                         if ( si->si_base.bv_val ) {
3930                                 ch_free( si->si_base.bv_val );
3931                         }
3932                         ber_str2bv( val, 0, 0, &bv );
3933                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3934                         if ( rc != LDAP_SUCCESS ) {
3935                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3936                                         "Invalid base DN \"%s\": %d (%s)",
3937                                         val, rc, ldap_err2string( rc ) );
3938                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3939                                 return -1;
3940                         }
3941                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3942                                 ch_free( si->si_base.bv_val );
3943                                 BER_BVZERO( &si->si_base );
3944                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3945                                         "Base DN \"%s\" is not within the database naming context",
3946                                         val );
3947                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3948                                 return -1;
3949                         }
3950                         si->si_got |= GOT_SEARCHBASE;
3951                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3952                                         STRLENOF( LOGBASESTR "=" ) ) )
3953                 {
3954                         struct berval   bv;
3955                         int             rc;
3956
3957                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3958                         if ( si->si_logbase.bv_val ) {
3959                                 ch_free( si->si_logbase.bv_val );
3960                         }
3961                         ber_str2bv( val, 0, 0, &bv );
3962                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3963                         if ( rc != LDAP_SUCCESS ) {
3964                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3965                                         "Invalid logbase DN \"%s\": %d (%s)",
3966                                         val, rc, ldap_err2string( rc ) );
3967                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3968                                 return -1;
3969                         }
3970                         si->si_got |= GOT_LOGBASE;
3971                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3972                                         STRLENOF( SCOPESTR "=" ) ) )
3973                 {
3974                         int j;
3975                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3976                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3977                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3978                                         si->si_scope = scopes[j].val;
3979                                         break;
3980                                 }
3981                         }
3982                         if ( BER_BVISNULL(&scopes[j].key) ) {
3983                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3984                                         "Error: parse_syncrepl_line: "
3985                                         "unknown scope \"%s\"", val);
3986                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3987                                 return -1;
3988                         }
3989                         si->si_got |= GOT_SCOPE;
3990                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3991                                         STRLENOF( ATTRSONLYSTR ) ) )
3992                 {
3993                         si->si_attrsonly = 1;
3994                         si->si_got |= GOT_ATTRSONLY;
3995                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3996                                         STRLENOF( ATTRSSTR "=" ) ) )
3997                 {
3998                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3999                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4000                                 char *attr_fname;
4001                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4002                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
4003                                 if ( si->si_anlist == NULL ) {
4004                                         ch_free( attr_fname );
4005                                         return -1;
4006                                 }
4007                                 si->si_anfile = attr_fname;
4008                         } else {
4009                                 char *str, *s, *next;
4010                                 const char *delimstr = " ,\t";
4011                                 str = ch_strdup( val );
4012                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
4013                                                 s != NULL;
4014                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
4015                                 {
4016                                         if ( strlen(s) == 1 && *s == '*' ) {
4017                                                 si->si_allattrs = 1;
4018                                                 val[ s - str ] = delimstr[0];
4019                                         }
4020                                         if ( strlen(s) == 1 && *s == '+' ) {
4021                                                 si->si_allopattrs = 1;
4022                                                 val [ s - str ] = delimstr[0];
4023                                         }
4024                                 }
4025                                 ch_free( str );
4026                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4027                                 if ( si->si_anlist == NULL ) {
4028                                         return -1;
4029                                 }
4030                         }
4031                         si->si_got |= GOT_ATTRS;
4032                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4033                                         STRLENOF( EXATTRSSTR "=" ) ) )
4034                 {
4035                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4036                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4037                                 char *attr_fname;
4038                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4039                                 si->si_exanlist = file2anlist(
4040                                         si->si_exanlist, attr_fname, " ,\t" );
4041                                 if ( si->si_exanlist == NULL ) {
4042                                         ch_free( attr_fname );
4043                                         return -1;
4044                                 }
4045                                 ch_free( attr_fname );
4046                         } else {
4047                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4048                                 if ( si->si_exanlist == NULL ) {
4049                                         return -1;
4050                                 }
4051                         }
4052                         si->si_got |= GOT_EXATTRS;
4053                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4054                                         STRLENOF( TYPESTR "=" ) ) )
4055                 {
4056                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4057                         if ( !strncasecmp( val, "refreshOnly",
4058                                                 STRLENOF("refreshOnly") ) )
4059                         {
4060                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4061                         } else if ( !strncasecmp( val, "refreshAndPersist",
4062                                                 STRLENOF("refreshAndPersist") ) )
4063                         {
4064                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4065                                 si->si_interval = 60;
4066                         } else {
4067                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4068                                         "Error: parse_syncrepl_line: "
4069                                         "unknown sync type \"%s\"", val);
4070                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4071                                 return -1;
4072                         }
4073                         si->si_got |= GOT_TYPE;
4074                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4075                                         STRLENOF( INTERVALSTR "=" ) ) )
4076                 {
4077                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4078                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4079                                 si->si_interval = 0;
4080                         } else if ( strchr( val, ':' ) != NULL ) {
4081                                 char *next, *ptr = val;
4082                                 int dd, hh, mm, ss;
4083
4084                                 dd = strtol( ptr, &next, 10 );
4085                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4086                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4087                                                 "Error: parse_syncrepl_line: "
4088                                                 "invalid interval \"%s\", unable to parse days", val );
4089                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4090                                         return -1;
4091                                 }
4092                                 ptr = next + 1;
4093                                 hh = strtol( ptr, &next, 10 );
4094                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4095                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4096                                                 "Error: parse_syncrepl_line: "
4097                                                 "invalid interval \"%s\", unable to parse hours", val );
4098                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4099                                         return -1;
4100                                 }
4101                                 ptr = next + 1;
4102                                 mm = strtol( ptr, &next, 10 );
4103                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4104                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4105                                                 "Error: parse_syncrepl_line: "
4106                                                 "invalid interval \"%s\", unable to parse minutes", val );
4107                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4108                                         return -1;
4109                                 }
4110                                 ptr = next + 1;
4111                                 ss = strtol( ptr, &next, 10 );
4112                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4113                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4114                                                 "Error: parse_syncrepl_line: "
4115                                                 "invalid interval \"%s\", unable to parse seconds", val );
4116                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4117                                         return -1;
4118                                 }
4119                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4120                         } else {
4121                                 unsigned long   t;
4122
4123                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4124                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4125                                                 "Error: parse_syncrepl_line: "
4126                                                 "invalid interval \"%s\"", val );
4127                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4128                                         return -1;
4129                                 }
4130                                 si->si_interval = (time_t)t;
4131                         }
4132                         if ( si->si_interval < 0 ) {
4133                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4134                                         "Error: parse_syncrepl_line: "
4135                                         "invalid interval \"%ld\"",
4136                                         (long) si->si_interval);
4137                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4138                                 return -1;
4139                         }
4140                         si->si_got |= GOT_INTERVAL;
4141                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4142                                         STRLENOF( RETRYSTR "=" ) ) )
4143                 {
4144                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4145                                 return 1;
4146                         }
4147                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4148                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4149                 {
4150                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4151                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4152                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4153                         {
4154                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4155                                         "invalid manageDSAit value \"%s\".\n",
4156                                         val );
4157                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4158                                 return 1;
4159                         }
4160                         si->si_got |= GOT_MANAGEDSAIT;
4161                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4162                                         STRLENOF( SLIMITSTR "=") ) )
4163                 {
4164                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4165                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4166                                 si->si_slimit = 0;
4167
4168                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4169                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4170                                         "invalid size limit value \"%s\".\n",
4171                                         val );
4172                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4173                                 return 1;
4174                         }
4175                         si->si_got |= GOT_SLIMIT;
4176                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4177                                         STRLENOF( TLIMITSTR "=" ) ) )
4178                 {
4179                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4180                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4181                                 si->si_tlimit = 0;
4182
4183                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4184                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4185                                         "invalid time limit value \"%s\".\n",
4186                                         val );
4187                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4188                                 return 1;
4189                         }
4190                         si->si_got |= GOT_TLIMIT;
4191                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4192                                         STRLENOF( SYNCDATASTR "=" ) ) )
4193                 {
4194                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4195                         si->si_syncdata = verb_to_mask( val, datamodes );
4196                         si->si_got |= GOT_SYNCDATA;
4197                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4198                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4199                                 "Error: parse_syncrepl_line: "
4200                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4201                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4202                         return -1;
4203                 }
4204                 si->si_got |= GOT_BINDCONF;
4205         }
4206
4207         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4208                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4209                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4210                         si->si_got & GOT_RID ? "" : " "IDSTR,
4211                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4212                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4213                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4214                 return -1;
4215         }
4216
4217         if ( !( si->si_got & GOT_RETRY ) ) {
4218                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4219                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4220                 if ( si->si_retryinterval == NULL ) {
4221                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4222                                 return 1;
4223                         }
4224                 }
4225         }
4226
4227         return 0;
4228 }
4229
4230 static int
4231 add_syncrepl(
4232         ConfigArgs *c )
4233 {
4234         syncinfo_t *si;
4235         int     rc = 0;
4236
4237         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4238                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4239                         "operations required for syncrepl", c->be->be_type );
4240                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4241                 return 1;
4242         }
4243         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4244                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4245                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4246                 return 1;
4247         }
4248         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4249
4250         if ( si == NULL ) {
4251                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4252                 return 1;
4253         }
4254
4255         si->si_bindconf.sb_tls = SB_TLS_OFF;
4256         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4257         si->si_schemachecking = 0;
4258         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4259                 &si->si_filterstr );
4260         si->si_base.bv_val = NULL;
4261         si->si_scope = LDAP_SCOPE_SUBTREE;
4262         si->si_attrsonly = 0;
4263         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4264         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4265         si->si_attrs = NULL;
4266         si->si_allattrs = 0;
4267         si->si_allopattrs = 0;
4268         si->si_exattrs = NULL;
4269         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4270         si->si_interval = 86400;
4271         si->si_retryinterval = NULL;
4272         si->si_retrynum_init = NULL;
4273         si->si_retrynum = NULL;
4274         si->si_manageDSAit = 0;
4275         si->si_tlimit = 0;
4276         si->si_slimit = 0;
4277
4278         si->si_presentlist = NULL;
4279         LDAP_LIST_INIT( &si->si_nonpresentlist );
4280         ldap_pvt_thread_mutex_init( &si->si_mutex );
4281
4282         rc = parse_syncrepl_line( c, si );
4283
4284         if ( rc == 0 ) {
4285                 /* Must be LDAPv3 because we need controls */
4286                 switch ( si->si_bindconf.sb_version ) {
4287                 case 0:
4288                         /* not explicitly set */
4289                         si->si_bindconf.sb_version = LDAP_VERSION3;
4290                         break;
4291                 case 3:
4292                         /* explicitly set */
4293                         break;
4294                 default:
4295                         Debug( LDAP_DEBUG_ANY,
4296                                 "version %d incompatible with syncrepl\n",
4297                                 si->si_bindconf.sb_version, 0, 0 );
4298                         syncinfo_free( si, 0 );
4299                         return 1;
4300                 }
4301
4302                 si->si_be = c->be;
4303                 if ( slapMode & SLAP_SERVER_MODE ) {
4304                         Listener **l = slapd_get_listeners();
4305                         int isMe = 0;
4306
4307                         /* check if URL points to current server. If so, ignore
4308                          * this configuration. We require an exact match. Just
4309                          * in case they really want to do this, they can vary
4310                          * the case of the URL to allow it.
4311                          */
4312                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4313                                 int i;
4314                                 for ( i=0; l[i]; i++ ) {
4315                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4316                                                 isMe = 1;
4317                                                 break;
4318                                         }
4319                                 }
4320                         }
4321
4322                         if ( !isMe ) {
4323                                 init_syncrepl( si );
4324                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4325                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4326                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4327                                         si->si_ridtxt );
4328                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4329                                 if ( si->si_re )
4330                                         rc = config_sync_shadow( c ) ? -1 : 0;
4331                                 else
4332                                         rc = -1;
4333                         }
4334                 } else {
4335                         /* mirrormode still needs to see this flag in tool mode */
4336                         rc = config_sync_shadow( c ) ? -1 : 0;
4337                 }
4338         }
4339
4340 #ifdef HAVE_TLS
4341         /* Use main slapd defaults */
4342         bindconf_tls_defaults( &si->si_bindconf );
4343 #endif
4344         if ( rc < 0 ) {
4345                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4346                 syncinfo_free( si, 0 );
4347                 return 1;
4348         } else {
4349                 Debug( LDAP_DEBUG_CONFIG,
4350                         "Config: ** successfully added syncrepl \"%s\"\n",
4351                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4352                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4353                 if ( c->be->be_syncinfo ) {
4354                         syncinfo_t *sip;
4355
4356                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4357
4358                         // add new syncrepl to end of list (same order as when deleting)
4359                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
4360                         sip->si_next = si;
4361                 } else {
4362                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4363                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4364
4365                         c->be->be_syncinfo = si;
4366                 }
4367
4368                 si->si_next = NULL;
4369
4370                 return 0;
4371         }
4372 }
4373
4374 static void
4375 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4376 {
4377         struct berval bc, uri;
4378         char buf[BUFSIZ*2], *ptr;
4379         ber_len_t len;
4380         int i;
4381 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4382
4383         BER_BVZERO( bv );
4384
4385         /* temporarily inhibit bindconf from printing URI */
4386         uri = si->si_bindconf.sb_uri;
4387         BER_BVZERO( &si->si_bindconf.sb_uri );
4388         si->si_bindconf.sb_version = 0;
4389         bindconf_unparse( &si->si_bindconf, &bc );
4390         si->si_bindconf.sb_uri = uri;
4391         si->si_bindconf.sb_version = LDAP_VERSION3;
4392
4393         ptr = buf;
4394         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4395         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4396                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4397         if ( len >= sizeof( buf ) ) return;
4398         ptr += len;
4399         if ( !BER_BVISNULL( &bc ) ) {
4400                 if ( WHATSLEFT <= bc.bv_len ) {
4401                         free( bc.bv_val );
4402                         return;
4403                 }
4404                 ptr = lutil_strcopy( ptr, bc.bv_val );
4405                 free( bc.bv_val );
4406         }
4407         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4408                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4409                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4410                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4411                 *ptr++ = '"';
4412         }
4413         if ( !BER_BVISNULL( &si->si_base ) ) {
4414                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4415                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4416                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4417                 *ptr++ = '"';
4418         }
4419         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4420                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4421                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4422                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4423                 *ptr++ = '"';
4424         }
4425         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4426                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4427                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4428                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4429                 *ptr++ = '"';
4430         }
4431         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4432                 if ( si->si_scope == scopes[i].val ) {
4433                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4434                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4435                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4436                         break;
4437                 }
4438         }
4439         if ( si->si_attrsonly ) {
4440                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4441                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4442         }
4443         if ( si->si_anfile ) {
4444                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4445                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4446                 ptr = lutil_strcopy( ptr, si->si_anfile );
4447                 *ptr++ = '"';
4448         } else if ( si->si_allattrs || si->si_allopattrs ||
4449                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4450         {
4451                 char *old;
4452
4453                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4454                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4455                 old = ptr;
4456                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4457                 if ( ptr == NULL ) return;
4458                 if ( si->si_allattrs ) {
4459                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4460                         if ( old != ptr ) *ptr++ = ',';
4461                         *ptr++ = '*';
4462                 }
4463                 if ( si->si_allopattrs ) {
4464                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4465                         if ( old != ptr ) *ptr++ = ',';
4466                         *ptr++ = '+';
4467                 }
4468                 *ptr++ = '"';
4469         }
4470         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4471                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4472                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4473                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4474                 if ( ptr == NULL ) return;
4475         }
4476         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4477         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4478         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4479
4480         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4481         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4482         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4483                 "refreshAndPersist" : "refreshOnly" );
4484
4485         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4486                 int dd, hh, mm, ss;
4487
4488                 dd = si->si_interval;
4489                 ss = dd % 60;
4490                 dd /= 60;
4491                 mm = dd % 60;
4492                 dd /= 60;
4493                 hh = dd % 24;
4494                 dd /= 24;
4495                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4496                         INTERVALSTR, dd, hh, mm, ss );
4497                 if ( len >= WHATSLEFT ) return;
4498                 ptr += len;
4499         }
4500
4501         if ( si->si_got & GOT_RETRY ) {
4502                 const char *space = "";
4503                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4504                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4505                 for (i=0; si->si_retryinterval[i]; i++) {
4506                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4507                                 (long) si->si_retryinterval[i] );
4508                         space = " ";
4509                         if ( WHATSLEFT - 1 <= len ) return;
4510                         ptr += len;
4511                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4512                                 *ptr++ = '+';
4513                         else {
4514                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4515                                 if ( WHATSLEFT <= len ) return;
4516                                 ptr += len;
4517                         }
4518                 }
4519                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4520                 *ptr++ = '"';
4521         } else {
4522                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4523         }
4524
4525         if ( si->si_slimit ) {
4526                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4527                 if ( WHATSLEFT <= len ) return;
4528                 ptr += len;
4529         }
4530
4531         if ( si->si_tlimit ) {
4532                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4533                 if ( WHATSLEFT <= len ) return;
4534                 ptr += len;
4535         }
4536
4537         if ( si->si_syncdata ) {
4538                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4539                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4540                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4541                         ptr = lutil_strcopy( ptr, bc.bv_val );
4542                 }
4543         }
4544         bc.bv_len = ptr - buf;
4545         bc.bv_val = buf;
4546         ber_dupbv( bv, &bc );
4547 }
4548
4549 int
4550 syncrepl_config( ConfigArgs *c )
4551 {
4552         if (c->op == SLAP_CONFIG_EMIT) {
4553                 if ( c->be->be_syncinfo ) {
4554                         struct berval bv;
4555                         syncinfo_t *si;
4556
4557                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4558                                 syncrepl_unparse( si, &bv );
4559                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4560                         }
4561                         return 0;
4562                 }
4563                 return 1;
4564         } else if ( c->op == LDAP_MOD_DELETE ) {
4565                 cookie_state *cs = NULL;
4566                 int isrunning = 0;
4567                 if ( c->be->be_syncinfo ) {
4568                         syncinfo_t *si, **sip;
4569                         int i;
4570
4571                         cs = c->be->be_syncinfo->si_cookieState;
4572                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4573                                 si = *sip;
4574                                 if ( c->valx == -1 || i == c->valx ) {
4575                                         *sip = si->si_next;
4576                                         /* If the task is currently active, we have to leave
4577                                          * it running. It will exit on its own. This will only
4578                                          * happen when running on the cn=config DB.
4579                                          */
4580                                         if ( si->si_re ) {
4581                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
4582                                                         isrunning = 1;
4583                                                 } else {
4584                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
4585                                                 }
4586                                         }
4587                                         if ( si->si_re && isrunning ) {
4588                                                 si->si_ctype = 0;
4589                                                 si->si_next = NULL;
4590                                         } else {
4591                                                 syncinfo_free( si, 0 );
4592                                         }
4593                                         if ( i == c->valx )
4594                                                 break;
4595                                 } else {
4596                                         sip = &si->si_next;
4597                                 }
4598                         }
4599                 }
4600                 if ( !c->be->be_syncinfo ) {
4601                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4602                         if ( cs && !isrunning ) {
4603                                 ch_free( cs->cs_sids );
4604                                 ber_bvarray_free( cs->cs_vals );
4605                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4606                                 ch_free( cs );
4607                         }
4608                 }
4609                 return 0;
4610         }
4611         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4612                 Debug(LDAP_DEBUG_ANY, "%s: "
4613                         "syncrepl: database already shadowed.\n",
4614                         c->log, 0, 0);
4615                 return(1);
4616         } else {
4617                 return add_syncrepl( c );
4618         }
4619 }