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