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