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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2009 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003-2008 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[3], *ctrls[4];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 421         BER_BVZERO( &c[1].ldctl_value );
 422         c[1].ldctl_iscritical = 1;
 423         ctrls[1] = &c[1];
 424
 425         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 426                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 427                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 428                 c[2].ldctl_iscritical = 1;
 429                 ctrls[2] = &c[2];
 430                 ctrls[3] = NULL;
 431         } else {
 432                 ctrls[2] = NULL;
 433         }
 434
 435         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 436                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 437         ber_free_buf( ber );
 438         return rc;
 439 }
 440
 441 static int
 442 check_syncprov(
 443         Operation *op,
 444         syncinfo_t *si )
 445 {
 446         AttributeName at[2];
 447         Attribute a = {0};
 448         Entry e = {0};
 449         SlapReply rs = {0};
 450         int i, j, changed = 0;
 451
 452         /* Look for contextCSN from syncprov overlay. If
 453          * there's no overlay, this will be a no-op. That means
 454          * this is a pure consumer, so local changes will not be
 455          * allowed, and all changes will already be reflected in
 456          * the cookieState.
 457          */
 458         a.a_desc = slap_schema.si_ad_contextCSN;
 459         e.e_attrs = &a;
 460         e.e_name = op->o_bd->be_suffix[0];
 461         e.e_nname = op->o_bd->be_nsuffix[0];
 462         at[0].an_name = a.a_desc->ad_cname;
 463         at[0].an_desc = a.a_desc;
 464         BER_BVZERO( &at[1].an_name );
 465         rs.sr_entry = &e;
 466         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 467         rs.sr_attrs = at;
 468         op->o_req_dn = e.e_name;
 469         op->o_req_ndn = e.e_nname;
 470
 471         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 472         i = backend_operational( op, &rs );
 473         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 474                 int num = a.a_numvals;
 475                 /* check for differences */
 476                 if ( num != si->si_cookieState->cs_num ) {
 477                         changed = 1;
 478                 } else {
 479                         for ( i=0; i<num; i++ ) {
 480                                 if ( ber_bvcmp( &a.a_nvals[i],
 481                                         &si->si_cookieState->cs_vals[i] )) {
 482                                         changed = 1;
 483                                         break;
 484                                 }
 485                         }
 486                 }
 487                 if ( changed ) {
 488                         ber_bvarray_free( si->si_cookieState->cs_vals );
 489                         ch_free( si->si_cookieState->cs_sids );
 490                         si->si_cookieState->cs_num = num;
 491                         si->si_cookieState->cs_vals = a.a_nvals;
 492                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 493                                 num, NULL );
 494                         si->si_cookieState->cs_age++;
 495                 } else {
 496                         ber_bvarray_free( a.a_nvals );
 497                 }
 498                 ber_bvarray_free( a.a_vals );
 499         }
 500         /* See if the cookieState has changed due to anything outside
 501          * this particular consumer. That includes other consumers in
 502          * the same context, or local changes detected above.
 503          */
 504         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 505                 si->si_cookieState->cs_age ) {
 506                 if ( !si->si_syncCookie.numcsns ) {
 507                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 508                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 509                                 si->si_cookieState->cs_vals, NULL );
 510                         changed = 1;
 511                 } else {
 512                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 513                                 /* bogus, just dup everything */
 514                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 515                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 516                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 517                                                 si->si_cookieState->cs_vals, NULL );
 518                                         changed = 1;
 519                                         break;
 520                                 }
 521                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 522                                         if ( si->si_syncCookie.sids[i] !=
 523                                                 si->si_cookieState->cs_sids[j] )
 524                                                 continue;
 525                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 526                                                 &si->si_cookieState->cs_vals[j] ))
 527                                                 break;
 528                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 529                                                 &si->si_cookieState->cs_vals[j] );
 530                                         changed = 1;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535         }
 536         if ( changed ) {
 537                 si->si_cookieAge = si->si_cookieState->cs_age;
 538                 ch_free( si->si_syncCookie.octet_str.bv_val );
 539                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 540                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 541                         si->si_syncCookie.sid );
 542         }
 543         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 544         return changed;
 545 }
 546
 547 static int
 548 do_syncrep1(
 549         Operation *op,
 550         syncinfo_t *si )
 551 {
 552         int     rc;
 553         int cmdline_cookie_found = 0;
 554
 555         struct sync_cookie      *sc = NULL;
 556 #ifdef HAVE_TLS
 557         void    *ssl;
 558 #endif
 559
 560         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 561         if ( rc != LDAP_SUCCESS ) {
 562                 goto done;
 563         }
 564         op->o_protocol = LDAP_VERSION3;
 565
 566         /* Set SSF to strongest of TLS, SASL SSFs */
 567         op->o_sasl_ssf = 0;
 568         op->o_tls_ssf = 0;
 569         op->o_transport_ssf = 0;
 570 #ifdef HAVE_TLS
 571         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 572                 == LDAP_SUCCESS && ssl != NULL )
 573         {
 574                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 575         }
 576 #endif /* HAVE_TLS */
 577         {
 578                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 579                                                   to use sasl_ssf_t but currently uses ber_len_t */
 580                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 581                 op->o_sasl_ssf = ssf;
 582         }
 583         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 584                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 585
 586         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 587
 588         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 589         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 590
 591         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 592
 593         si->si_syncCookie.rid = si->si_rid;
 594
 595         /* whenever there are multiple data sources possible, advertise sid */
 596         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 597                 slap_serverID : -1;
 598
 599         /* We've just started up, or the remote server hasn't sent us
 600          * any meaningful state.
 601          */
 602         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 603                 int i;
 604
 605                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 606                         if ( si->si_rid == sc->rid ) {
 607                                 cmdline_cookie_found = 1;
 608                                 break;
 609                         }
 610                 }
 611
 612                 if ( cmdline_cookie_found ) {
 613                         /* cookie is supplied in the command line */
 614
 615                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 616
 617                         /* ctxcsn wasn't parsed yet, do it now */
 618                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 619                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 620                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 621                         slap_sync_cookie_free( sc, 1 );
 622                 } else {
 623                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 624                         if ( !si->si_cookieState->cs_num ) {
 625                                 /* get contextCSN shadow replica from database */
 626                                 BerVarray csn = NULL;
 627                                 void *ctx = op->o_tmpmemctx;
 628
 629                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 630                                 op->o_req_dn = op->o_req_ndn;
 631
 632                                 /* try to read stored contextCSN */
 633                                 op->o_tmpmemctx = NULL;
 634                                 backend_attribute( op, NULL, &op->o_req_ndn,
 635                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 636                                 op->o_tmpmemctx = ctx;
 637                                 if ( csn ) {
 638                                         si->si_cookieState->cs_vals = csn;
 639                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 640                                         si->si_cookieState->cs_num = i;
 641                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 642                                 }
 643                         }
 644                         if ( si->si_cookieState->cs_num ) {
 645                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 646                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 647                                         si->si_cookieState->cs_vals, NULL )) {
 648                                         rc = LDAP_NO_MEMORY;
 649                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 650                                         goto done;
 651                                 }
 652                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 653                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 654                                         sizeof(int) );
 655                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 656                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 657                         }
 658                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 659                 }
 660
 661                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 662                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 663                         si->si_syncCookie.sid );
 664         } else {
 665                 /* Look for contextCSN from syncprov overlay. */
 666                 check_syncprov( op, si );
 667         }
 668
 669         si->si_refreshDone = 0;
 670
 671         rc = ldap_sync_search( si, op->o_tmpmemctx );
 672
 673         if( rc != LDAP_SUCCESS ) {
 674                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 675                         "ldap_search_ext: %s (%d)\n",
 676                         si->si_ridtxt, ldap_err2string( rc ), rc );
 677         }
 678
 679 done:
 680         if ( rc ) {
 681                 if ( si->si_ld ) {
 682                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 683                         si->si_ld = NULL;
 684                 }
 685         }
 686
 687         return rc;
 688 }
 689
 690 static int
 691 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 692 {
 693         int i, j, match = 0;
 694         const char *text;
 695
 696         *which = 0;
 697
 698         if ( sc1->numcsns < sc2->numcsns ) {
 699                 *which = sc1->numcsns;
 700                 return -1;
 701         }
 702
 703         for (j=0; j<sc2->numcsns; j++) {
 704                 for (i=0; i<sc1->numcsns; i++) {
 705                         if ( sc1->sids[i] != sc2->sids[j] )
 706                                 continue;
 707                         value_match( &match, slap_schema.si_ad_entryCSN,
 708                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 709                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 710                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 711                         if ( match < 0 ) {
 712                                 *which = j;
 713                                 return match;
 714                         }
 715                         break;
 716                 }
 717                 if ( i == sc1->numcsns ) {
 718                         /* sc2 has a sid sc1 lacks */
 719                         *which = j;
 720                         return -1;
 721                 }
 722         }
 723         return match;
 724 }
 725
 726 #define SYNC_PAUSED     -3
 727
 728 static int
 729 do_syncrep2(
 730         Operation *op,
 731         syncinfo_t *si )
 732 {
 733         LDAPControl     **rctrls = NULL;
 734
 735         BerElementBuffer berbuf;
 736         BerElement      *ber = (BerElement *)&berbuf;
 737
 738         LDAPMessage     *msg = NULL;
 739
 740         char            *retoid = NULL;
 741         struct berval   *retdata = NULL;
 742
 743         Entry           *entry = NULL;
 744
 745         int             syncstate;
 746         struct berval   syncUUID = BER_BVNULL;
 747         struct sync_cookie      syncCookie = { NULL };
 748         struct sync_cookie      syncCookie_req = { NULL };
 749         struct berval           cookie = BER_BVNULL;
 750
 751         int             rc,
 752                         err = LDAP_SUCCESS;
 753         ber_len_t       len;
 754
 755         struct berval   *psub;
 756         Modifications   *modlist = NULL;
 757
 758         int                             match, m;
 759
 760         struct timeval *tout_p = NULL;
 761         struct timeval tout = { 0, 0 };
 762
 763         int             refreshDeletes = 0;
 764         BerVarray syncUUIDs = NULL;
 765         ber_tag_t si_tag;
 766
 767         if ( slapd_shutdown ) {
 768                 rc = -2;
 769                 goto done;
 770         }
 771
 772         ber_init2( ber, NULL, LBER_USE_DER );
 773         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 774
 775         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 776
 777         psub = &si->si_be->be_nsuffix[0];
 778
 779         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 780
 781         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 782                 tout_p = &tout;
 783         } else {
 784                 tout_p = NULL;
 785         }
 786
 787         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 788                 tout_p, &msg ) ) > 0 )
 789         {
 790                 LDAPControl     *rctrlp = NULL;
 791
 792                 if ( slapd_shutdown ) {
 793                         rc = -2;
 794                         goto done;
 795                 }
 796                 switch( ldap_msgtype( msg ) ) {
 797                 case LDAP_RES_SEARCH_ENTRY:
 798                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 799                         /* we can't work without the control */
 800                         if ( rctrls ) {
 801                                 LDAPControl **next;
 802                                 /* NOTE: make sure we use the right one;
 803                                  * a better approach would be to run thru
 804                                  * the whole list and take care of all */
 805                                 /* NOTE: since we issue the search request,
 806                                  * we should know what controls to expect,
 807                                  * and there should be none apart from the
 808                                  * sync-related control */
 809                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 810                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 811                                 {
 812                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 813                                                 "got search entry with multiple "
 814                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 815                                         ldap_controls_free( rctrls );
 816                                         rc = -1;
 817                                         goto done;
 818                                 }
 819                         }
 820                         if ( rctrlp == NULL ) {
 821                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 822                                         "got search entry without "
 823                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 828                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 829                         /* FIXME: what if syncUUID is NULL or empty?
 830                          * (happens with back-sql...) */
 831                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 832                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 833                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 834                                         si->si_ridtxt,
 835                                         syncrepl_state2str( syncstate ), 0 );
 836                                 ldap_controls_free( rctrls );
 837                                 rc = -1;
 838                                 goto done;
 839                         }
 840                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 841                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 842
 843                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 844                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 845
 846                                 if ( !BER_BVISNULL( &cookie ) ) {
 847                                         ch_free( syncCookie.octet_str.bv_val );
 848                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 849                                 }
 850                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 851                                 {
 852                                         slap_parse_sync_cookie( &syncCookie, NULL );
 853                                         if ( syncCookie.ctxcsn ) {
 854                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 855                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 856                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 857                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 858                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 859                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 860                                                                 ldap_controls_free( rctrls );
 861                                                                 rc = 0;
 862                                                                 goto done;
 863                                                         }
 864                                                 }
 865                                         }
 866                                 }
 867                         }
 868                         rc = 0;
 869                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 870                                 modlist = NULL;
 871                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 872                                         syncCookie.ctxcsn )
 873                                 {
 874                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 875                                 } else switch ( rc ) {
 876                                         case LDAP_ALREADY_EXISTS:
 877                                         case LDAP_NO_SUCH_OBJECT:
 878                                         case LDAP_NO_SUCH_ATTRIBUTE:
 879                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 880                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 881                                                 si->si_logstate = SYNCLOG_FALLBACK;
 882                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 883                                                 break;
 884                                         default:
 885                                                 break;
 886                                 }
 887                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 888                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 889                         {
 890                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 891                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 892                                         syncCookie.ctxcsn )
 893                                 {
 894                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 895                                 }
 896                         }
 897                         ldap_controls_free( rctrls );
 898                         if ( modlist ) {
 899                                 slap_mods_free( modlist, 1 );
 900                         }
 901                         if ( rc )
 902                                 goto done;
 903                         break;
 904
 905                 case LDAP_RES_SEARCH_REFERENCE:
 906                         Debug( LDAP_DEBUG_ANY,
 907                                 "do_syncrep2: %s reference received error\n",
 908                                 si->si_ridtxt, 0, 0 );
 909                         break;
 910
 911                 case LDAP_RES_SEARCH_RESULT:
 912                         Debug( LDAP_DEBUG_SYNC,
 913                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 914                                 si->si_ridtxt, 0, 0 );
 915                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 916                                 &rctrls, 0 );
 917 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 918                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 919                                 /* map old result code to registered code */
 920                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 921                         }
 922 #endif
 923                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 924                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 925                                         si->si_logstate = SYNCLOG_FALLBACK;
 926                                 }
 927                                 rc = err;
 928                                 goto done;
 929                         }
 930                         if ( err ) {
 931                                 Debug( LDAP_DEBUG_ANY,
 932                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 933                                         si->si_ridtxt, err, ldap_err2string( err ) );
 934                         }
 935                         if ( rctrls ) {
 936                                 LDAPControl **next;
 937                                 /* NOTE: make sure we use the right one;
 938                                  * a better approach would be to run thru
 939                                  * the whole list and take care of all */
 940                                 /* NOTE: since we issue the search request,
 941                                  * we should know what controls to expect,
 942                                  * and there should be none apart from the
 943                                  * sync-related control */
 944                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 945                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 946                                 {
 947                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 948                                                 "got search result with multiple "
 949                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 950                                         ldap_controls_free( rctrls );
 951                                         rc = -1;
 952                                         goto done;
 953                                 }
 954                         }
 955                         if ( rctrlp ) {
 956                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 957
 958                                 ber_scanf( ber, "{" /*"}"*/);
 959                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 960                                         ber_scanf( ber, "m", &cookie );
 961
 962                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 963                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 964
 965                                         if ( !BER_BVISNULL( &cookie ) ) {
 966                                                 ch_free( syncCookie.octet_str.bv_val );
 967                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 968                                         }
 969                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 970                                         {
 971                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 972                                         }
 973                                 }
 974                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 975                                 {
 976                                         ber_scanf( ber, "b", &refreshDeletes );
 977                                 }
 978                                 ber_scanf( ber, /*"{"*/ "}" );
 979                         }
 980                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 981                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 982                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 983                         }
 984                         if ( !syncCookie.ctxcsn ) {
 985                                 match = 1;
 986                         } else if ( !syncCookie_req.ctxcsn ) {
 987                                 match = -1;
 988                                 m = 0;
 989                         } else {
 990                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 991                         }
 992                         if ( rctrls ) {
 993                                 ldap_controls_free( rctrls );
 994                         }
 995                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 996                                 /* FIXME : different error behaviors according to
 997                                  *      1) err code : LDAP_BUSY ...
 998                                  *      2) on err policy : stop service, stop sync, retry
 999                                  */
1000                                 if ( refreshDeletes == 0 && match < 0 &&
1001                                         err == LDAP_SUCCESS &&
1002                                         syncCookie_req.numcsns == syncCookie.numcsns )
1003                                 {
1004                                         syncrepl_del_nonpresent( op, si, NULL,
1005                                                 &syncCookie, m );
1006                                 } else {
1007                                         avl_free( si->si_presentlist, ch_free );
1008                                         si->si_presentlist = NULL;
1009                                 }
1010                         }
1011                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1012                         {
1013                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1014                         }
1015                         if ( err == LDAP_SUCCESS
1016                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1017                                 si->si_logstate = SYNCLOG_LOGGING;
1018                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1019                         } else {
1020                                 rc = -2;
1021                         }
1022                         goto done;
1023                         break;
1024
1025                 case LDAP_RES_INTERMEDIATE:
1026                         rc = ldap_parse_intermediate( si->si_ld, msg,
1027                                 &retoid, &retdata, NULL, 0 );
1028                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1029                                 ber_init2( ber, retdata, LBER_USE_DER );
1030
1031                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1032                                 ber_tag_t tag;
1033                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1034                                         Debug( LDAP_DEBUG_SYNC,
1035                                                 "do_syncrep2: %s %s - %s\n",
1036                                                 si->si_ridtxt,
1037                                                 "LDAP_RES_INTERMEDIATE",
1038                                                 "NEW_COOKIE" );
1039                                         ber_scanf( ber, "tm", &tag, &cookie );
1040                                         break;
1041                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1042                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1043                                         Debug( LDAP_DEBUG_SYNC,
1044                                                 "do_syncrep2: %s %s - %s\n",
1045                                                 si->si_ridtxt,
1046                                                 "LDAP_RES_INTERMEDIATE",
1047                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1048                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1049                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1050                                                 si->si_refreshDelete = 1;
1051                                         } else {
1052                                                 si->si_refreshPresent = 1;
1053                                         }
1054                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1055                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1056                                         {
1057                                                 ber_scanf( ber, "m", &cookie );
1058
1059                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1060                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1061
1062                                                 if ( !BER_BVISNULL( &cookie ) ) {
1063                                                         ch_free( syncCookie.octet_str.bv_val );
1064                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1065                                                 }
1066                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1067                                                 {
1068                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1069                                                 }
1070                                         }
1071                                         /* Defaults to TRUE */
1072                                         if ( ber_peek_tag( ber, &len ) ==
1073                                                 LDAP_TAG_REFRESHDONE )
1074                                         {
1075                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1076                                         } else
1077                                         {
1078                                                 si->si_refreshDone = 1;
1079                                         }
1080                                         ber_scanf( ber, /*"{"*/ "}" );
1081                                         break;
1082                                 case LDAP_TAG_SYNC_ID_SET:
1083                                         Debug( LDAP_DEBUG_SYNC,
1084                                                 "do_syncrep2: %s %s - %s\n",
1085                                                 si->si_ridtxt,
1086                                                 "LDAP_RES_INTERMEDIATE",
1087                                                 "SYNC_ID_SET" );
1088                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1089                                         if ( ber_peek_tag( ber, &len ) ==
1090                                                 LDAP_TAG_SYNC_COOKIE )
1091                                         {
1092                                                 ber_scanf( ber, "m", &cookie );
1093
1094                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1095                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1096
1097                                                 if ( !BER_BVISNULL( &cookie ) ) {
1098                                                         ch_free( syncCookie.octet_str.bv_val );
1099                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1100                                                 }
1101                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1102                                                 {
1103                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1104                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1105                                                 }
1106                                         }
1107                                         if ( ber_peek_tag( ber, &len ) ==
1108                                                 LDAP_TAG_REFRESHDELETES )
1109                                         {
1110                                                 ber_scanf( ber, "b", &refreshDeletes );
1111                                         }
1112                                         ber_scanf( ber, "[W]", &syncUUIDs );
1113                                         ber_scanf( ber, /*"{"*/ "}" );
1114                                         if ( refreshDeletes ) {
1115                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1116                                                         &syncCookie, m );
1117                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1118                                         } else {
1119                                                 int i;
1120                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1121                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1122                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1123                                                 }
1124                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1125                                         }
1126                                         slap_sync_cookie_free( &syncCookie, 0 );
1127                                         break;
1128                                 default:
1129                                         Debug( LDAP_DEBUG_ANY,
1130                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1131                                                 si->si_ridtxt, (long) si_tag, 0 );
1132                                         ldap_memfree( retoid );
1133                                         ber_bvfree( retdata );
1134                                         continue;
1135                                 }
1136
1137                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1138                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1139                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1140                                 }
1141                                 if ( !syncCookie.ctxcsn ) {
1142                                         match = 1;
1143                                 } else if ( !syncCookie_req.ctxcsn ) {
1144                                         match = -1;
1145                                         m = 0;
1146                                 } else {
1147                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1148                                 }
1149
1150                                 if ( match < 0 ) {
1151                                         if ( si->si_refreshPresent == 1 &&
1152                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1153                                                 syncrepl_del_nonpresent( op, si, NULL,
1154                                                         &syncCookie, m );
1155                                         }
1156
1157                                         if ( syncCookie.ctxcsn )
1158                                         {
1159                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1160                                         }
1161                                 }
1162
1163                                 ldap_memfree( retoid );
1164                                 ber_bvfree( retdata );
1165                                 break;
1166
1167                         } else {
1168                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1169                                         "unknown intermediate response (%d)\n",
1170                                         si->si_ridtxt, rc, 0 );
1171                                 ldap_memfree( retoid );
1172                                 ber_bvfree( retdata );
1173                                 break;
1174                         }
1175                         break;
1176
1177                 default:
1178                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1179                                 "unknown message (0x%02lx)\n",
1180                                 si->si_ridtxt,
1181                                 (unsigned long)ldap_msgtype( msg ), 0 );
1182                         break;
1183
1184                 }
1185                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1186                         slap_sync_cookie_free( &syncCookie_req, 0 );
1187                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1188                         slap_sync_cookie_free( &syncCookie, 0 );
1189                 }
1190                 ldap_msgfree( msg );
1191                 msg = NULL;
1192                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1193                         slap_sync_cookie_free( &syncCookie, 0 );
1194                         slap_sync_cookie_free( &syncCookie_req, 0 );
1195                         return SYNC_PAUSED;
1196                 }
1197         }
1198
1199         if ( rc == -1 ) {
1200                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1201                 err = rc;
1202         }
1203
1204 done:
1205         if ( err != LDAP_SUCCESS ) {
1206                 Debug( LDAP_DEBUG_ANY,
1207                         "do_syncrep2: %s (%d) %s\n",
1208                         si->si_ridtxt, err, ldap_err2string( err ) );
1209         }
1210
1211         slap_sync_cookie_free( &syncCookie, 0 );
1212         slap_sync_cookie_free( &syncCookie_req, 0 );
1213
1214         if ( msg ) ldap_msgfree( msg );
1215
1216         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1217                 if ( si->si_conn ) {
1218                         connection_client_stop( si->si_conn );
1219                         si->si_conn = NULL;
1220                 }
1221                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1222                 si->si_ld = NULL;
1223         }
1224
1225         return rc;
1226 }
1227
1228 static void *
1229 do_syncrepl(
1230         void    *ctx,
1231         void    *arg )
1232 {
1233         struct re_s* rtask = arg;
1234         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1235         Connection conn = {0};
1236         OperationBuffer opbuf;
1237         Operation *op;
1238         int rc = LDAP_SUCCESS;
1239         int dostop = 0;
1240         ber_socket_t s;
1241         int i, defer = 1, fail = 0;
1242         Backend *be;
1243
1244         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1245
1246         if ( si == NULL )
1247                 return NULL;
1248
1249         /* There will never be more than one instance active */
1250         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1251
1252         switch( abs( si->si_type ) ) {
1253         case LDAP_SYNC_REFRESH_ONLY:
1254         case LDAP_SYNC_REFRESH_AND_PERSIST:
1255                 break;
1256         default:
1257                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1258                 return NULL;
1259         }
1260
1261         if ( slapd_shutdown ) {
1262                 if ( si->si_ld ) {
1263                         if ( si->si_conn ) {
1264                                 connection_client_stop( si->si_conn );
1265                                 si->si_conn = NULL;
1266                         }
1267                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1268                         si->si_ld = NULL;
1269                 }
1270                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1271                 return NULL;
1272         }
1273
1274         connection_fake_init( &conn, &opbuf, ctx );
1275         op = &opbuf.ob_op;
1276
1277         /* use global malloc for now */
1278         op->o_tmpmemctx = NULL;
1279         op->o_tmpmfuncs = &ch_mfuncs;
1280
1281         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1282         be = si->si_be;
1283
1284         /* Coordinate contextCSN updates with any syncprov overlays
1285          * in use. This may be complicated by the use of the glue
1286          * overlay.
1287          *
1288          * Typically there is a single syncprov mastering the entire
1289          * glued tree. In that case, our contextCSN updates should
1290          * go to the master DB. But if there is no syncprov on the
1291          * master DB, then nothing special is needed here.
1292          *
1293          * Alternatively, there may be individual syncprov overlays
1294          * on each glued branch. In that case, each syncprov only
1295          * knows about changes within its own branch. And so our
1296          * contextCSN updates should only go to the local DB.
1297          */
1298         if ( !si->si_wbe ) {
1299                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1300                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1301                         if ( overlay_is_inst( top_be, "syncprov" ))
1302                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1303                         else
1304                                 si->si_wbe = be;
1305                 } else {
1306                         si->si_wbe = be;
1307                 }
1308         }
1309         if ( !si->si_schemachecking )
1310                 op->o_no_schema_check = 1;
1311
1312         /* Establish session, do search */
1313         if ( !si->si_ld ) {
1314                 si->si_refreshDelete = 0;
1315                 si->si_refreshPresent = 0;
1316
1317                 /* use main DB when retrieving contextCSN */
1318                 op->o_bd = si->si_wbe;
1319                 op->o_dn = op->o_bd->be_rootdn;
1320                 op->o_ndn = op->o_bd->be_rootndn;
1321                 rc = do_syncrep1( op, si );
1322         }
1323
1324 reload:
1325         /* Process results */
1326         if ( rc == LDAP_SUCCESS ) {
1327                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1328
1329                 /* use current DB */
1330                 op->o_bd = be;
1331                 op->o_dn = op->o_bd->be_rootdn;
1332                 op->o_ndn = op->o_bd->be_rootndn;
1333                 rc = do_syncrep2( op, si );
1334                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1335                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1336                         goto reload;
1337                 }
1338
1339                 /* We got deleted while running on cn=config */
1340                 if ( !si->si_ctype ) {
1341                         if ( si->si_conn )
1342                                 dostop = 1;
1343                         rc = -1;
1344                 }
1345
1346                 if ( rc != SYNC_PAUSED ) {
1347                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1348                                 /* If we succeeded, enable the connection for further listening.
1349                                  * If we failed, tear down the connection and reschedule.
1350                                  */
1351                                 if ( rc == LDAP_SUCCESS ) {
1352                                         if ( si->si_conn ) {
1353                                                 connection_client_enable( si->si_conn );
1354                                         } else {
1355                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1356                                         }
1357                                 } else if ( si->si_conn ) {
1358                                         dostop = 1;
1359                                 }
1360                         } else {
1361                                 if ( rc == -2 ) rc = 0;
1362                         }
1363                 }
1364         }
1365
1366         /* At this point, we have 5 cases:
1367          * 1) for any hard failure, give up and remove this task
1368          * 2) for ServerDown, reschedule this task to run later
1369          * 3) for threadpool pause, reschedule to run immediately
1370          * 4) for Refresh and Success, reschedule to run
1371          * 5) for Persist and Success, reschedule to defer
1372          */
1373         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1374
1375         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1376                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1377         }
1378
1379         if ( dostop ) {
1380                 connection_client_stop( si->si_conn );
1381                 si->si_conn = NULL;
1382         }
1383
1384         if ( rc == SYNC_PAUSED ) {
1385                 rtask->interval.tv_sec = 0;
1386                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1387                 rtask->interval.tv_sec = si->si_interval;
1388                 rc = 0;
1389         } else if ( rc == LDAP_SUCCESS ) {
1390                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1391                         defer = 0;
1392                 }
1393                 rtask->interval.tv_sec = si->si_interval;
1394                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1395                 if ( si->si_retrynum ) {
1396                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1397                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1398                         }
1399                         si->si_retrynum[i] = RETRYNUM_TAIL;
1400                 }
1401         } else {
1402                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1403                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1404                                 break;
1405                 }
1406
1407                 if ( !si->si_ctype
1408                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1409                         if ( si->si_re ) {
1410                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1411                                 si->si_re = NULL;
1412                         }
1413                         fail = RETRYNUM_TAIL;
1414                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1415                         if ( si->si_retrynum[i] > 0 )
1416                                 si->si_retrynum[i]--;
1417                         fail = si->si_retrynum[i];
1418                         rtask->interval.tv_sec = si->si_retryinterval[i];
1419                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1420                         slap_wake_listener();
1421                 }
1422         }
1423
1424         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1425         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1426
1427         if ( rc ) {
1428                 if ( fail == RETRYNUM_TAIL ) {
1429                         Debug( LDAP_DEBUG_ANY,
1430                                 "do_syncrepl: %s quitting\n",
1431                                 si->si_ridtxt, 0, 0 );
1432                 } else if ( fail > 0 ) {
1433                         Debug( LDAP_DEBUG_ANY,
1434                                 "do_syncrepl: %s retrying (%d retries left)\n",
1435                                 si->si_ridtxt, fail, 0 );
1436                 } else {
1437                         Debug( LDAP_DEBUG_ANY,
1438                                 "do_syncrepl: %s retrying\n",
1439                                 si->si_ridtxt, 0, 0 );
1440                 }
1441         }
1442
1443         /* Do final delete cleanup */
1444         if ( !si->si_ctype ) {
1445                 cookie_state *cs = NULL;
1446                 syncinfo_t **sip;
1447
1448                 cs = be->be_syncinfo->si_cookieState;
1449                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1450                 *sip = si->si_next;
1451                 syncinfo_free( si, 0 );
1452                 if ( !be->be_syncinfo ) {
1453                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1454                         if ( cs ) {
1455                                 ch_free( cs->cs_sids );
1456                                 ber_bvarray_free( cs->cs_vals );
1457                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1458                                 ch_free( cs );
1459                         }
1460                 }
1461         }
1462         return NULL;
1463 }
1464
1465 static slap_verbmasks modops[] = {
1466         { BER_BVC("add"), LDAP_REQ_ADD },
1467         { BER_BVC("delete"), LDAP_REQ_DELETE },
1468         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1469         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1470         { BER_BVNULL, 0 }
1471 };
1472
1473 static Modifications *
1474 syncrepl_accesslog_mods(
1475         syncinfo_t *si,
1476         struct berval *vals
1477 )
1478 {
1479         char *colon;
1480         const char *text;
1481         AttributeDescription *ad;
1482         struct berval bv, bv2;
1483         short op;
1484         Modifications *mod = NULL, *modlist = NULL, **modtail;
1485         int i;
1486
1487         modtail = &modlist;
1488
1489         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1490                 ad = NULL;
1491                 bv = vals[i];
1492
1493                 colon = ber_bvchr( &bv, ':' );
1494                 if ( !colon ) {
1495                         /* Invalid */
1496                         continue;
1497                 }
1498
1499                 bv.bv_len = colon - bv.bv_val;
1500                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1501                         /* Invalid */
1502                         continue;
1503                 }
1504
1505                 /* Ignore dynamically generated attrs */
1506                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1507                         continue;
1508                 }
1509
1510                 /* Ignore excluded attrs */
1511                 if ( ldap_charray_inlist( si->si_exattrs,
1512                         ad->ad_type->sat_cname.bv_val ) )
1513                 {
1514                         continue;
1515                 }
1516
1517                 switch(colon[1]) {
1518                 case '+':       op = LDAP_MOD_ADD; break;
1519                 case '-':       op = LDAP_MOD_DELETE; break;
1520                 case '=':       op = LDAP_MOD_REPLACE; break;
1521                 case '#':       op = LDAP_MOD_INCREMENT; break;
1522                 default:        continue;
1523                 }
1524
1525                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1526                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1527                         mod->sml_flags = 0;
1528                         mod->sml_op = op;
1529                         mod->sml_next = NULL;
1530                         mod->sml_desc = ad;
1531                         mod->sml_type = ad->ad_cname;
1532                         mod->sml_values = NULL;
1533                         mod->sml_nvalues = NULL;
1534                         mod->sml_numvals = 0;
1535
1536                         *modtail = mod;
1537                         modtail = &mod->sml_next;
1538                 }
1539                 if ( colon[2] == ' ' ) {
1540                         bv.bv_val = colon + 3;
1541                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1542                         ber_dupbv( &bv2, &bv );
1543                         ber_bvarray_add( &mod->sml_values, &bv2 );
1544                         mod->sml_numvals++;
1545                 }
1546         }
1547         return modlist;
1548 }
1549
1550 static Modifications *
1551 syncrepl_changelog_mods(
1552         syncinfo_t *si,
1553         struct berval *vals
1554 )
1555 {
1556         return NULL;    /* FIXME */
1557 }
1558
1559 static int
1560 syncrepl_message_to_op(
1561         syncinfo_t      *si,
1562         Operation       *op,
1563         LDAPMessage     *msg
1564 )
1565 {
1566         BerElement      *ber = NULL;
1567         Modifications   *modlist = NULL;
1568         logschema *ls;
1569         SlapReply rs = { REP_RESULT };
1570         slap_callback cb = { NULL, null_callback, NULL, NULL };
1571
1572         const char      *text;
1573         char txtbuf[SLAP_TEXT_BUFLEN];
1574         size_t textlen = sizeof txtbuf;
1575
1576         struct berval   bdn, dn = BER_BVNULL, ndn;
1577         struct berval   bv, *bvals = NULL;
1578         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1579                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1580                 psup = BER_BVNULL, nsup = BER_BVNULL;
1581         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1582
1583         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1584                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1585                         "Message type should be entry (%d)",
1586                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1587                 return -1;
1588         }
1589
1590         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1591                 ls = &accesslog_sc;
1592         else
1593                 ls = &changelog_sc;
1594
1595         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1596
1597         if ( rc != LDAP_SUCCESS ) {
1598                 Debug( LDAP_DEBUG_ANY,
1599                         "syncrepl_message_to_op: %s dn get failed (%d)",
1600                         si->si_ridtxt, rc, 0 );
1601                 return rc;
1602         }
1603
1604         op->o_tag = LBER_DEFAULT;
1605         op->o_bd = si->si_wbe;
1606
1607         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1608                 == LDAP_SUCCESS ) {
1609                 if ( bv.bv_val == NULL )
1610                         break;
1611
1612                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1613                         bdn = bvals[0];
1614                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1615                         ber_dupbv( &op->o_req_dn, &dn );
1616                         ber_dupbv( &op->o_req_ndn, &ndn );
1617                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1618                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1619                         freeReqDn = 1;
1620                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1621                         int i = verb_to_mask( bvals[0].bv_val, modops );
1622                         if ( i < 0 ) {
1623                                 Debug( LDAP_DEBUG_ANY,
1624                                         "syncrepl_message_to_op: %s unknown op %s",
1625                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1626                                 ch_free( bvals );
1627                                 rc = -1;
1628                                 goto done;
1629                         }
1630                         op->o_tag = modops[i].mask;
1631                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1632                         /* Parse attribute into modlist */
1633                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1634                                 modlist = syncrepl_accesslog_mods( si, bvals );
1635                         } else {
1636                                 modlist = syncrepl_changelog_mods( si, bvals );
1637                         }
1638                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1639                         rdn = bvals[0];
1640                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1641                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1642                                 deleteOldRdn = 1;
1643                         }
1644                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1645                         sup = bvals[0];
1646                 } else if ( !ber_bvstrcasecmp( &bv,
1647                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1648                 {
1649                         slap_queue_csn( op, bvals );
1650                 }
1651                 ch_free( bvals );
1652         }
1653
1654         /* If we didn't get a mod type or a target DN, bail out */
1655         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1656                 rc = -1;
1657                 goto done;
1658         }
1659
1660         op->o_callback = &cb;
1661         slap_op_time( &op->o_time, &op->o_tincr );
1662
1663         switch( op->o_tag ) {
1664         case LDAP_REQ_ADD:
1665         case LDAP_REQ_MODIFY:
1666                 /* If we didn't get required data, bail */
1667                 if ( !modlist ) goto done;
1668
1669                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1670
1671                 if ( rc != LDAP_SUCCESS ) {
1672                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1673                                 "mods check (%s)\n",
1674                                 si->si_ridtxt, text, 0 );
1675                         goto done;
1676                 }
1677
1678                 if ( op->o_tag == LDAP_REQ_ADD ) {
1679                         Entry *e = entry_alloc();
1680                         op->ora_e = e;
1681                         op->ora_e->e_name = op->o_req_dn;
1682                         op->ora_e->e_nname = op->o_req_ndn;
1683                         freeReqDn = 0;
1684                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1685                         if( rc != LDAP_SUCCESS ) {
1686                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1687                                 "mods2entry (%s)\n",
1688                                         si->si_ridtxt, text, 0 );
1689                         } else {
1690                                 rc = op->o_bd->be_add( op, &rs );
1691                                 Debug( LDAP_DEBUG_SYNC,
1692                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1693                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1694                         }
1695                         if ( e == op->ora_e )
1696                                 be_entry_release_w( op, op->ora_e );
1697                 } else {
1698                         op->orm_modlist = modlist;
1699                         op->o_bd = si->si_wbe;
1700                         rc = op->o_bd->be_modify( op, &rs );
1701                         modlist = op->orm_modlist;
1702                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1703                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1704                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1705                         op->o_bd = si->si_be;
1706                 }
1707                 break;
1708         case LDAP_REQ_MODRDN:
1709                 if ( BER_BVISNULL( &rdn ) ) goto done;
1710
1711                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1712                         goto done;
1713                 }
1714                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1715                         goto done;
1716                 }
1717                 if ( !BER_BVISNULL( &sup ) ) {
1718                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1719                                 goto done;
1720                         }
1721                         op->orr_newSup = &psup;
1722                         op->orr_nnewSup = &nsup;
1723                 } else {
1724                         op->orr_newSup = NULL;
1725                         op->orr_nnewSup = NULL;
1726                 }
1727                 op->orr_newrdn = prdn;
1728                 op->orr_nnewrdn = nrdn;
1729                 op->orr_deleteoldrdn = deleteOldRdn;
1730                 op->orr_modlist = NULL;
1731                 if ( slap_modrdn2mods( op, &rs ) ) {
1732                         goto done;
1733                 }
1734
1735                 /* Append modlist for operational attrs */
1736                 {
1737                         Modifications *m;
1738
1739                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1740                                 ;
1741                         m->sml_next = modlist;
1742                         modlist = NULL;
1743                 }
1744                 rc = op->o_bd->be_modrdn( op, &rs );
1745                 slap_mods_free( op->orr_modlist, 1 );
1746                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1747                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1748                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1749                 break;
1750         case LDAP_REQ_DELETE:
1751                 rc = op->o_bd->be_delete( op, &rs );
1752                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1753                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1754                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1755                 break;
1756         }
1757 done:
1758         slap_graduate_commit_csn( op );
1759         op->o_bd = si->si_be;
1760         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1761         BER_BVZERO( &op->o_csn );
1762         if ( modlist ) {
1763                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1764         }
1765         if ( !BER_BVISNULL( &rdn ) ) {
1766                 if ( !BER_BVISNULL( &nsup ) ) {
1767                         ch_free( nsup.bv_val );
1768                 }
1769                 if ( !BER_BVISNULL( &psup ) ) {
1770                         ch_free( psup.bv_val );
1771                 }
1772                 if ( !BER_BVISNULL( &nrdn ) ) {
1773                         ch_free( nrdn.bv_val );
1774                 }
1775                 if ( !BER_BVISNULL( &prdn ) ) {
1776                         ch_free( prdn.bv_val );
1777                 }
1778         }
1779         if ( freeReqDn ) {
1780                 ch_free( op->o_req_ndn.bv_val );
1781                 ch_free( op->o_req_dn.bv_val );
1782         }
1783         ber_free( ber, 0 );
1784         return rc;
1785 }
1786
1787 static int
1788 syncrepl_message_to_entry(
1789         syncinfo_t      *si,
1790         Operation       *op,
1791         LDAPMessage     *msg,
1792         Modifications   **modlist,
1793         Entry                   **entry,
1794         int             syncstate
1795 )
1796 {
1797         Entry           *e = NULL;
1798         BerElement      *ber = NULL;
1799         Modifications   tmp;
1800         Modifications   *mod;
1801         Modifications   **modtail = modlist;
1802
1803         const char      *text;
1804         char txtbuf[SLAP_TEXT_BUFLEN];
1805         size_t textlen = sizeof txtbuf;
1806
1807         struct berval   bdn = BER_BVNULL, dn, ndn;
1808         int             rc, is_ctx;
1809
1810         *modlist = NULL;
1811
1812         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1813                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1814                         "Message type should be entry (%d)",
1815                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1816                 return -1;
1817         }
1818
1819         op->o_tag = LDAP_REQ_ADD;
1820
1821         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1822         if ( rc != LDAP_SUCCESS ) {
1823                 Debug( LDAP_DEBUG_ANY,
1824                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1825                         si->si_ridtxt, rc, 0 );
1826                 return rc;
1827         }
1828
1829         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1830                 /* NOTE: this could be done even before decoding the DN,
1831                  * although encoding errors wouldn't be detected */
1832                 rc = LDAP_SUCCESS;
1833                 goto done;
1834         }
1835
1836         if ( entry == NULL ) {
1837                 return -1;
1838         }
1839
1840         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1841         ber_dupbv( &op->o_req_dn, &dn );
1842         ber_dupbv( &op->o_req_ndn, &ndn );
1843         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1844         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1845
1846         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1847
1848         e = entry_alloc();
1849         e->e_name = op->o_req_dn;
1850         e->e_nname = op->o_req_ndn;
1851
1852         while ( ber_remaining( ber ) ) {
1853                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1854                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1855                 {
1856                         break;
1857                 }
1858
1859                 /* Drop all updates to the contextCSN of the context entry
1860                  * (ITS#4622, etc.)
1861                  */
1862                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1863                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1864                         ber_bvarray_free( tmp.sml_values );
1865                         continue;
1866                 }
1867
1868                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1869
1870                 mod->sml_op = LDAP_MOD_REPLACE;
1871                 mod->sml_flags = 0;
1872                 mod->sml_next = NULL;
1873                 mod->sml_desc = NULL;
1874                 mod->sml_type = tmp.sml_type;
1875                 mod->sml_values = tmp.sml_values;
1876                 mod->sml_nvalues = NULL;
1877                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1878
1879                 *modtail = mod;
1880                 modtail = &mod->sml_next;
1881         }
1882
1883         if ( *modlist == NULL ) {
1884                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1885                         si->si_ridtxt, 0, 0 );
1886                 rc = -1;
1887                 goto done;
1888         }
1889
1890         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1891
1892         if ( rc != LDAP_SUCCESS ) {
1893                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1894                         si->si_ridtxt, text, 0 );
1895                 goto done;
1896         }
1897
1898         /* Strip out dynamically generated attrs */
1899         for ( modtail = modlist; *modtail ; ) {
1900                 mod = *modtail;
1901                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1902                         *modtail = mod->sml_next;
1903                         slap_mod_free( &mod->sml_mod, 0 );
1904                         ch_free( mod );
1905                 } else {
1906                         modtail = &mod->sml_next;
1907                 }
1908         }
1909
1910         /* Strip out attrs in exattrs list */
1911         for ( modtail = modlist; *modtail ; ) {
1912                 mod = *modtail;
1913                 if ( ldap_charray_inlist( si->si_exattrs,
1914                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1915                 {
1916                         *modtail = mod->sml_next;
1917                         slap_mod_free( &mod->sml_mod, 0 );
1918                         ch_free( mod );
1919                 } else {
1920                         modtail = &mod->sml_next;
1921                 }
1922         }
1923
1924         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1925         if( rc != LDAP_SUCCESS ) {
1926                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1927                         si->si_ridtxt, text, 0 );
1928         }
1929
1930 done:
1931         ber_free( ber, 0 );
1932         if ( rc != LDAP_SUCCESS ) {
1933                 if ( e ) {
1934                         entry_free( e );
1935                         e = NULL;
1936                 }
1937         }
1938         if ( entry )
1939                 *entry = e;
1940
1941         return rc;
1942 }
1943
1944 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1945
1946 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1947  * entry if a previous refresh was interrupted before sending us a new
1948  * context state. We try to compare the new entry to the existing entry
1949  * and ignore the new entry if they are the same.
1950  *
1951  * Also, we may get an update where the entryDN has changed, due to
1952  * a ModDn on the provider. We detect this as well, so we can issue
1953  * the corresponding operation locally.
1954  *
1955  * In the case of a modify, we get a list of all the attributes
1956  * in the original entry. Rather than deleting the entry and re-adding it,
1957  * we issue a Modify request that deletes all the attributes and adds all
1958  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1959  * entry.
1960  *
1961  * We otherwise distinguish ModDN from Modify; in the case of
1962  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1963  * operational attributes from the entry, and do a regular ModDN.
1964  */
1965 typedef struct dninfo {
1966         Entry *new_entry;
1967         struct berval dn;
1968         struct berval ndn;
1969         struct berval nnewSup;
1970         int renamed;    /* Was an existing entry renamed? */
1971         int delOldRDN;  /* Was old RDN deleted? */
1972         Modifications **modlist;        /* the modlist we received */
1973         Modifications *mods;    /* the modlist we compared */
1974         Attribute *oldNattr;    /* old naming attr */
1975         AttributeDescription *oldDesc;  /* for renames */
1976         AttributeDescription *newDesc;  /* for renames */
1977 } dninfo;
1978
1979 /* return 1 if inserted, 0 otherwise */
1980 static int
1981 avl_presentlist_insert(
1982         syncinfo_t* si,
1983         struct berval *syncUUID )
1984 {
1985         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1986
1987         syncuuid_bv->bv_len = syncUUID->bv_len;
1988         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1989         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1990         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1991
1992         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1993                 syncuuid_cmp, avl_dup_error ) )
1994         {
1995                 ch_free( syncuuid_bv );
1996                 return 0;
1997         }
1998
1999         return 1;
2000 }
2001
2002 static int
2003 syncrepl_entry(
2004         syncinfo_t* si,
2005         Operation *op,
2006         Entry* entry,
2007         Modifications** modlist,
2008         int syncstate,
2009         struct berval* syncUUID,
2010         struct berval* syncCSN )
2011 {
2012         Backend *be = op->o_bd;
2013         slap_callback   cb = { NULL, NULL, NULL, NULL };
2014         int syncuuid_inserted = 0;
2015         struct berval   syncUUID_strrep = BER_BVNULL;
2016
2017         SlapReply       rs_search = {REP_RESULT};
2018         SlapReply       rs_delete = {REP_RESULT};
2019         SlapReply       rs_add = {REP_RESULT};
2020         SlapReply       rs_modify = {REP_RESULT};
2021         Filter f = {0};
2022         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2023         int rc = LDAP_SUCCESS;
2024
2025         struct berval pdn = BER_BVNULL;
2026         dninfo dni = {0};
2027         int     retry = 1;
2028         int     freecsn = 1;
2029
2030         Debug( LDAP_DEBUG_SYNC,
2031                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2032                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2033
2034         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2035                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2036                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2037                 }
2038         }
2039
2040         if ( syncstate == LDAP_SYNC_PRESENT ) {
2041                 return 0;
2042         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2043                 if ( entry == NULL ) {
2044                         return 0;
2045                 }
2046         }
2047
2048         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2049         if ( syncstate != LDAP_SYNC_DELETE ) {
2050                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2051
2052                 if ( a == NULL ) {
2053                         /* add if missing */
2054                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2055                                 &syncUUID_strrep, syncUUID );
2056
2057                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2058                         /* replace only if necessary */
2059                         if ( a->a_nvals != a->a_vals ) {
2060                                 ber_memfree( a->a_nvals[0].bv_val );
2061                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2062                         }
2063                         ber_memfree( a->a_vals[0].bv_val );
2064                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2065                 }
2066         }
2067
2068         f.f_choice = LDAP_FILTER_EQUALITY;
2069         f.f_ava = &ava;
2070         ava.aa_desc = slap_schema.si_ad_entryUUID;
2071         ava.aa_value = *syncUUID;
2072
2073         if ( syncuuid_inserted ) {
2074                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2075                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2076         }
2077         op->ors_filter = &f;
2078
2079         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2080         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2081                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2082         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2083         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2084                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2085         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2086         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2087
2088         op->o_tag = LDAP_REQ_SEARCH;
2089         op->ors_scope = LDAP_SCOPE_SUBTREE;
2090         op->ors_deref = LDAP_DEREF_NEVER;
2091
2092         /* get the entry for this UUID */
2093         op->o_req_dn = si->si_base;
2094         op->o_req_ndn = si->si_base;
2095
2096         op->o_time = slap_get_time();
2097         op->ors_tlimit = SLAP_NO_LIMIT;
2098         op->ors_slimit = 1;
2099
2100         op->ors_attrs = slap_anlist_all_attributes;
2101         op->ors_attrsonly = 0;
2102
2103         /* set callback function */
2104         op->o_callback = &cb;
2105         cb.sc_response = dn_callback;
2106         cb.sc_private = &dni;
2107         dni.new_entry = entry;
2108         dni.modlist = modlist;
2109
2110         if ( limits_check( op, &rs_search ) == 0 ) {
2111                 rc = be->be_search( op, &rs_search );
2112                 Debug( LDAP_DEBUG_SYNC,
2113                                 "syncrepl_entry: %s be_search (%d)\n",
2114                                 si->si_ridtxt, rc, 0 );
2115         }
2116
2117         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2118                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2119         }
2120
2121         cb.sc_response = null_callback;
2122         cb.sc_private = si;
2123
2124         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2125                 Debug( LDAP_DEBUG_SYNC,
2126                                 "syncrepl_entry: %s %s\n",
2127                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2128         } else {
2129                 Debug( LDAP_DEBUG_SYNC,
2130                                 "syncrepl_entry: %s %s\n",
2131                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2132         }
2133
2134         assert( BER_BVISNULL( &op->o_csn ) );
2135         if ( syncCSN ) {
2136                 slap_queue_csn( op, syncCSN );
2137         }
2138
2139         slap_op_time( &op->o_time, &op->o_tincr );
2140         switch ( syncstate ) {
2141         case LDAP_SYNC_ADD:
2142         case LDAP_SYNC_MODIFY:
2143                 if ( BER_BVISNULL( &op->o_csn ))
2144                 {
2145
2146                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2147                         if ( a ) {
2148                                 /* FIXME: op->o_csn is assumed to be
2149                                  * on the thread's slab; this needs
2150                                  * to be cleared ASAP.
2151                                  * What happens if already present?
2152                                  */
2153                                 assert( BER_BVISNULL( &op->o_csn ) );
2154                                 op->o_csn = a->a_vals[0];
2155                                 freecsn = 0;
2156                         }
2157                 }
2158 retry_add:;
2159                 if ( BER_BVISNULL( &dni.dn ) ) {
2160
2161                         op->o_req_dn = entry->e_name;
2162                         op->o_req_ndn = entry->e_nname;
2163                         op->o_tag = LDAP_REQ_ADD;
2164                         op->ora_e = entry;
2165                         op->o_bd = si->si_wbe;
2166
2167                         rc = op->o_bd->be_add( op, &rs_add );
2168                         Debug( LDAP_DEBUG_SYNC,
2169                                         "syncrepl_entry: %s be_add (%d)\n",
2170                                         si->si_ridtxt, rc, 0 );
2171                         switch ( rs_add.sr_err ) {
2172                         case LDAP_SUCCESS:
2173                                 if ( op->ora_e == entry ) {
2174                                         be_entry_release_w( op, entry );
2175                                 }
2176                                 entry = NULL;
2177                                 break;
2178
2179                         case LDAP_REFERRAL:
2180                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2181                          * only if the suffix entry is not present */
2182                         case LDAP_NO_SUCH_OBJECT:
2183                                 rc = syncrepl_add_glue( op, entry );
2184                                 entry = NULL;
2185                                 break;
2186
2187                         /* if an entry was added via syncrepl_add_glue(),
2188                          * it likely has no entryUUID, so the previous
2189                          * be_search() doesn't find it.  In this case,
2190                          * give syncrepl a chance to modify it. Also
2191                          * allow for entries that were recreated with the
2192                          * same DN but a different entryUUID.
2193                          */
2194                         case LDAP_ALREADY_EXISTS:
2195                                 if ( retry ) {
2196                                         Operation       op2 = *op;
2197                                         SlapReply       rs2 = { 0 };
2198                                         slap_callback   cb2 = { 0 };
2199
2200                                         op2.o_bd = be;
2201                                         op2.o_tag = LDAP_REQ_SEARCH;
2202                                         op2.o_req_dn = entry->e_name;
2203                                         op2.o_req_ndn = entry->e_nname;
2204                                         op2.ors_scope = LDAP_SCOPE_BASE;
2205                                         op2.ors_deref = LDAP_DEREF_NEVER;
2206                                         op2.ors_attrs = slap_anlist_all_attributes;
2207                                         op2.ors_attrsonly = 0;
2208                                         op2.ors_limit = NULL;
2209                                         op2.ors_slimit = 1;
2210                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2211
2212                                         f.f_choice = LDAP_FILTER_PRESENT;
2213                                         f.f_desc = slap_schema.si_ad_objectClass;
2214                                         op2.ors_filter = &f;
2215                                         op2.ors_filterstr = generic_filterstr;
2216
2217                                         op2.o_callback = &cb2;
2218                                         cb2.sc_response = dn_callback;
2219                                         cb2.sc_private = &dni;
2220
2221                                         rc = be->be_search( &op2, &rs2 );
2222                                         if ( rc ) goto done;
2223
2224                                         retry = 0;
2225                                         slap_op_time( &op->o_time, &op->o_tincr );
2226                                         goto retry_add;
2227                                 }
2228                                 /* FALLTHRU */
2229
2230                         default:
2231                                 Debug( LDAP_DEBUG_ANY,
2232                                         "syncrepl_entry: %s be_add failed (%d)\n",
2233                                         si->si_ridtxt, rs_add.sr_err, 0 );
2234                                 break;
2235                         }
2236                         op->o_bd = be;
2237                         goto done;
2238                 }
2239                 /* FALLTHRU */
2240                 op->o_req_dn = dni.dn;
2241                 op->o_req_ndn = dni.ndn;
2242                 if ( dni.renamed ) {
2243                         struct berval noldp, newp;
2244                         Modifications *mod, **modtail, **ml, *m2;
2245                         int i, got_replace = 0, just_rename = 0;
2246
2247                         op->o_tag = LDAP_REQ_MODRDN;
2248                         dnRdn( &entry->e_name, &op->orr_newrdn );
2249                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2250
2251                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2252                                 dnParent( &entry->e_name, &newp );
2253                                 op->orr_newSup = &newp;
2254                                 op->orr_nnewSup = &dni.nnewSup;
2255                         } else {
2256                                 op->orr_newSup = NULL;
2257                                 op->orr_nnewSup = NULL;
2258                         }
2259                         op->orr_deleteoldrdn = dni.delOldRDN;
2260                         op->orr_modlist = NULL;
2261                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2262                                 goto done;
2263                         }
2264
2265                         /* Drop the RDN-related mods from this op, because their
2266                          * equivalents were just setup by slap_modrdn2mods.
2267                          *
2268                          * If delOldRDN is TRUE then we should see a delete modop
2269                          * for oldDesc. We might see a replace instead.
2270                          *  delete with no values: therefore newDesc != oldDesc.
2271                          *   if oldNattr had only one value, then Drop this op.
2272                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2273                          *  delete with N values: Drop oldRDN value, keep remainder.
2274                          *  replace with 1 value: if oldNattr had only one value and
2275                          *     newDesc == oldDesc, Drop this op.
2276                          * Any other cases must be left intact.
2277                          *
2278                          * We should also see an add modop for newDesc. (But not if
2279                          * we got a replace modop due to delOldRDN.) If it has
2280                          * multiple values, we'll have to drop the new RDN value.
2281                          */
2282                         modtail = &op->orr_modlist;
2283                         if ( dni.delOldRDN ) {
2284                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2285                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2286                                                 mod = *ml;
2287                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2288                                                         dni.oldDesc != dni.newDesc ) {
2289                                                         /* This Replace is due to other Mods.
2290                                                          * Just let it ride.
2291                                                          */
2292                                                         continue;
2293                                                 }
2294                                                 if ( mod->sml_numvals <= 1 &&
2295                                                         dni.oldNattr->a_numvals == 1 &&
2296                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2297                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2298                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2299                                                                 got_replace = 1;
2300                                                         /* Drop this op */
2301                                                         *ml = mod->sml_next;
2302                                                         mod->sml_next = NULL;
2303                                                         slap_mods_free( mod, 1 );
2304                                                         break;
2305                                                 }
2306                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2307                                                         continue;
2308                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2309                                                         if ( m2->sml_desc == dni.oldDesc &&
2310                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2311                                                 }
2312                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2313                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2314                                                                 mod->sml_numvals--;
2315                                                                 ch_free( mod->sml_values[i].bv_val );
2316                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2317                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2318                                                                 if ( mod->sml_nvalues ) {
2319                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2320                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2321                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2322                                                                 }
2323                                                                 break;
2324                                                         }
2325                                                 }
2326                                                 break;
2327                                         }
2328                                 }
2329                         }
2330                         if ( !got_replace ) {
2331                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2332                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2333                                                 mod = *ml;
2334                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2335                                                         continue;
2336                                                 if ( mod->sml_numvals == 1 ) {
2337                                                         /* Drop this op */
2338                                                         *ml = mod->sml_next;
2339                                                         mod->sml_next = NULL;
2340                                                         slap_mods_free( mod, 1 );
2341                                                         break;
2342                                                 }
2343                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2344                                                         if ( m2->sml_desc == dni.oldDesc &&
2345                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2346                                                 }
2347                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2348                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2349                                                                 mod->sml_numvals--;
2350                                                                 ch_free( mod->sml_values[i].bv_val );
2351                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2352                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2353                                                                 if ( mod->sml_nvalues ) {
2354                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2355                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2356                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2357                                                                 }
2358                                                                 break;
2359                                                         }
2360                                                 }
2361                                                 break;
2362                                         }
2363                                 }
2364                         }
2365
2366                         /* RDNs must be NUL-terminated for back-ldap */
2367                         noldp = op->orr_newrdn;
2368                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2369                         noldp = op->orr_nnewrdn;
2370                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2371
2372                         /* Setup opattrs too */
2373                         {
2374                                 static AttributeDescription *nullattr = NULL;
2375                                 static AttributeDescription **const opattrs[] = {
2376                                         &slap_schema.si_ad_entryCSN,
2377                                         &slap_schema.si_ad_modifiersName,
2378                                         &slap_schema.si_ad_modifyTimestamp,
2379                                         &nullattr
2380                                 };
2381                                 AttributeDescription *opattr;
2382                                 int i;
2383
2384                                 modtail = &m2;
2385                                 /* pull mod off incoming modlist */
2386                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2387                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2388                                         {
2389                                                 if ( (*ml)->sml_desc == opattr ) {
2390                                                         mod = *ml;
2391                                                         *ml = mod->sml_next;
2392                                                         mod->sml_next = NULL;
2393                                                         *modtail = mod;
2394                                                         modtail = &mod->sml_next;
2395                                                         break;
2396                                                 }
2397                                         }
2398                                 }
2399                                 /* If there are still Modifications left, put the opattrs
2400                                  * back, and let be_modify run. Otherwise, append the opattrs
2401                                  * to the orr_modlist.
2402                                  */
2403                                 if ( dni.mods ) {
2404                                         mod = dni.mods;
2405                                         /* don't set a CSN for the rename op */
2406                                         if ( syncCSN )
2407                                                 slap_graduate_commit_csn( op );
2408                                 } else {
2409                                         mod = op->orr_modlist;
2410                                         just_rename = 1;
2411                                 }
2412                                 for ( ; mod->sml_next; mod=mod->sml_next );
2413                                 mod->sml_next = m2;
2414                         }
2415                         op->o_bd = si->si_wbe;
2416                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2417                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2418                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2419
2420                         slap_mods_free( op->orr_modlist, 1 );
2421                         Debug( LDAP_DEBUG_SYNC,
2422                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2423                                         si->si_ridtxt, rc, 0 );
2424                         op->o_bd = be;
2425                         /* Renamed entries may still have other mods so just fallthru */
2426                         op->o_req_dn = entry->e_name;
2427                         op->o_req_ndn = entry->e_nname;
2428                         /* Use CSN on the modify */
2429                         if ( syncCSN && !just_rename )
2430                                 slap_queue_csn( op, syncCSN );
2431                 }
2432                 if ( dni.mods ) {
2433                         op->o_tag = LDAP_REQ_MODIFY;
2434                         op->orm_modlist = dni.mods;
2435                         op->orm_no_opattrs = 1;
2436                         op->o_bd = si->si_wbe;
2437
2438                         rc = op->o_bd->be_modify( op, &rs_modify );
2439                         slap_mods_free( op->orm_modlist, 1 );
2440                         op->orm_no_opattrs = 0;
2441                         Debug( LDAP_DEBUG_SYNC,
2442                                         "syncrepl_entry: %s be_modify (%d)\n",
2443                                         si->si_ridtxt, rc, 0 );
2444                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2445                                 Debug( LDAP_DEBUG_ANY,
2446                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2447                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2448                         }
2449                         op->o_bd = be;
2450                 } else if ( !dni.renamed ) {
2451                         Debug( LDAP_DEBUG_SYNC,
2452                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2453                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2454                 }
2455                 goto done;
2456         case LDAP_SYNC_DELETE :
2457                 if ( !BER_BVISNULL( &dni.dn ) ) {
2458                         op->o_req_dn = dni.dn;
2459                         op->o_req_ndn = dni.ndn;
2460                         op->o_tag = LDAP_REQ_DELETE;
2461                         op->o_bd = si->si_wbe;
2462                         rc = op->o_bd->be_delete( op, &rs_delete );
2463                         Debug( LDAP_DEBUG_SYNC,
2464                                         "syncrepl_entry: %s be_delete (%d)\n",
2465                                         si->si_ridtxt, rc, 0 );
2466
2467                         while ( rs_delete.sr_err == LDAP_SUCCESS
2468                                 && op->o_delete_glue_parent ) {
2469                                 op->o_delete_glue_parent = 0;
2470                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2471                                         slap_callback cb = { NULL };
2472                                         cb.sc_response = slap_null_cb;
2473                                         dnParent( &op->o_req_ndn, &pdn );
2474                                         op->o_req_dn = pdn;
2475                                         op->o_req_ndn = pdn;
2476                                         op->o_callback = &cb;
2477                                         op->o_bd->be_delete( op, &rs_delete );
2478                                 } else {
2479                                         break;
2480                                 }
2481                         }
2482                         op->o_bd = be;
2483                 }
2484                 goto done;
2485
2486         default :
2487                 Debug( LDAP_DEBUG_ANY,
2488                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2489                 goto done;
2490         }
2491
2492 done:
2493         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2494                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2495                 BER_BVZERO( &syncUUID_strrep );
2496         }
2497         if ( !BER_BVISNULL( &dni.ndn ) ) {
2498                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2499         }
2500         if ( !BER_BVISNULL( &dni.dn ) ) {
2501                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2502         }
2503         if ( entry ) {
2504                 entry_free( entry );
2505         }
2506         if ( syncCSN ) {
2507                 slap_graduate_commit_csn( op );
2508         }
2509         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2510                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2511         }
2512         BER_BVZERO( &op->o_csn );
2513         return rc;
2514 }
2515
2516 static struct berval gcbva[] = {
2517         BER_BVC("top"),
2518         BER_BVC("glue"),
2519         BER_BVNULL
2520 };
2521
2522 #define NP_DELETE_ONE   2
2523
2524 static void
2525 syncrepl_del_nonpresent(
2526         Operation *op,
2527         syncinfo_t *si,
2528         BerVarray uuids,
2529         struct sync_cookie *sc,
2530         int m )
2531 {
2532         Backend* be = op->o_bd;
2533         slap_callback   cb = { NULL };
2534         SlapReply       rs_search = {REP_RESULT};
2535         SlapReply       rs_delete = {REP_RESULT};
2536         SlapReply       rs_modify = {REP_RESULT};
2537         struct nonpresent_entry *np_list, *np_prev;
2538         int rc;
2539         AttributeName   an[2];
2540
2541         struct berval pdn = BER_BVNULL;
2542         struct berval csn;
2543
2544         op->o_req_dn = si->si_base;
2545         op->o_req_ndn = si->si_base;
2546
2547         cb.sc_response = nonpresent_callback;
2548         cb.sc_private = si;
2549
2550         op->o_callback = &cb;
2551         op->o_tag = LDAP_REQ_SEARCH;
2552         op->ors_scope = si->si_scope;
2553         op->ors_deref = LDAP_DEREF_NEVER;
2554         op->o_time = slap_get_time();
2555         op->ors_tlimit = SLAP_NO_LIMIT;
2556
2557
2558         if ( uuids ) {
2559                 Filter uf;
2560                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2561                 int i;
2562
2563                 op->ors_attrsonly = 1;
2564                 op->ors_attrs = slap_anlist_no_attrs;
2565                 op->ors_limit = NULL;
2566                 op->ors_filter = &uf;
2567
2568                 uf.f_ava = &eq;
2569                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2570                 uf.f_next = NULL;
2571                 uf.f_choice = LDAP_FILTER_EQUALITY;
2572                 si->si_refreshDelete |= NP_DELETE_ONE;
2573
2574                 for (i=0; uuids[i].bv_val; i++) {
2575                         op->ors_slimit = 1;
2576                         uf.f_av_value = uuids[i];
2577                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2578                         rc = be->be_search( op, &rs_search );
2579                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2580                 }
2581                 si->si_refreshDelete ^= NP_DELETE_ONE;
2582         } else {
2583                 Filter *cf, *of;
2584                 Filter mmf[2];
2585                 AttributeAssertion mmaa;
2586
2587                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2588                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2589                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2590                 op->ors_attrs = an;
2591                 op->ors_slimit = SLAP_NO_LIMIT;
2592                 op->ors_attrsonly = 0;
2593                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2594                 /* In multimaster, updates can continue to arrive while
2595                  * we're searching. Limit the search result to entries
2596                  * older than our newest cookie CSN.
2597                  */
2598                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2599                         Filter *f;
2600                         int i;
2601
2602                         f = mmf;
2603                         f->f_choice = LDAP_FILTER_AND;
2604                         f->f_next = op->ors_filter;
2605                         f->f_and = f+1;
2606                         of = f->f_and;
2607                         f = of;
2608                         f->f_choice = LDAP_FILTER_LE;
2609                         f->f_ava = &mmaa;
2610                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2611                         f->f_next = NULL;
2612                         BER_BVZERO( &f->f_av_value );
2613                         for ( i=0; i<sc->numcsns; i++ ) {
2614                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2615                                         f->f_av_value = sc->ctxcsn[i];
2616                         }
2617                         of = op->ors_filter;
2618                         op->ors_filter = mmf;
2619                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2620                 } else {
2621                         cf = NULL;
2622                         op->ors_filterstr = si->si_filterstr;
2623                 }
2624                 op->o_nocaching = 1;
2625
2626                 if ( limits_check( op, &rs_search ) == 0 ) {
2627                         rc = be->be_search( op, &rs_search );
2628                 }
2629                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2630                         op->ors_filter = of;
2631                 }
2632                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2633                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2634                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2635                 }
2636
2637         }
2638
2639         op->o_nocaching = 0;
2640
2641         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2642
2643                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2644                         csn = sc->ctxcsn[m];
2645                 } else {
2646                         csn = si->si_syncCookie.ctxcsn[0];
2647                 }
2648
2649                 op->o_bd = si->si_wbe;
2650                 slap_queue_csn( op, &csn );
2651
2652                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2653                 while ( np_list != NULL ) {
2654                         LDAP_LIST_REMOVE( np_list, npe_link );
2655                         np_prev = np_list;
2656                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2657                         op->o_tag = LDAP_REQ_DELETE;
2658                         op->o_callback = &cb;
2659                         cb.sc_response = null_callback;
2660                         cb.sc_private = si;
2661                         op->o_req_dn = *np_prev->npe_name;
2662                         op->o_req_ndn = *np_prev->npe_nname;
2663                         rc = op->o_bd->be_delete( op, &rs_delete );
2664                         Debug( LDAP_DEBUG_SYNC,
2665                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2666                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2667
2668                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2669                                 Modifications mod1, mod2;
2670                                 mod1.sml_op = LDAP_MOD_REPLACE;
2671                                 mod1.sml_flags = 0;
2672                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2673                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2674                                 mod1.sml_numvals = 2;
2675                                 mod1.sml_values = &gcbva[0];
2676                                 mod1.sml_nvalues = NULL;
2677                                 mod1.sml_next = &mod2;
2678
2679                                 mod2.sml_op = LDAP_MOD_REPLACE;
2680                                 mod2.sml_flags = 0;
2681                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2682                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2683                                 mod2.sml_numvals = 1;
2684                                 mod2.sml_values = &gcbva[1];
2685                                 mod2.sml_nvalues = NULL;
2686                                 mod2.sml_next = NULL;
2687
2688                                 op->o_tag = LDAP_REQ_MODIFY;
2689                                 op->orm_modlist = &mod1;
2690
2691                                 rc = op->o_bd->be_modify( op, &rs_modify );
2692                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2693                         }
2694
2695                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2696                                         op->o_delete_glue_parent ) {
2697                                 op->o_delete_glue_parent = 0;
2698                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2699                                         slap_callback cb = { NULL };
2700                                         cb.sc_response = slap_null_cb;
2701                                         dnParent( &op->o_req_ndn, &pdn );
2702                                         op->o_req_dn = pdn;
2703                                         op->o_req_ndn = pdn;
2704                                         op->o_callback = &cb;
2705                                         /* give it a root privil ? */
2706                                         op->o_bd->be_delete( op, &rs_delete );
2707                                 } else {
2708                                         break;
2709                                 }
2710                         }
2711
2712                         op->o_delete_glue_parent = 0;
2713
2714                         ber_bvfree( np_prev->npe_name );
2715                         ber_bvfree( np_prev->npe_nname );
2716                         ch_free( np_prev );
2717
2718                         if ( slapd_shutdown ) {
2719                                 break;
2720                         }
2721                 }
2722
2723                 slap_graduate_commit_csn( op );
2724                 op->o_bd = be;
2725
2726                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2727                 BER_BVZERO( &op->o_csn );
2728         }
2729
2730         return;
2731 }
2732
2733 int
2734 syncrepl_add_glue(
2735         Operation* op,
2736         Entry *e )
2737 {
2738         Backend *be = op->o_bd;
2739         slap_callback cb = { NULL };
2740         Attribute       *a;
2741         int     rc;
2742         int suffrdns;
2743         int i;
2744         struct berval dn = BER_BVNULL;
2745         struct berval ndn = BER_BVNULL;
2746         Entry   *glue;
2747         SlapReply       rs_add = {REP_RESULT};
2748         struct berval   ptr, nptr;
2749         char            *comma;
2750
2751         op->o_tag = LDAP_REQ_ADD;
2752         op->o_callback = &cb;
2753         cb.sc_response = null_callback;
2754         cb.sc_private = NULL;
2755
2756         dn = e->e_name;
2757         ndn = e->e_nname;
2758
2759         /* count RDNs in suffix */
2760         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2761                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2762                         comma++;
2763                         ptr.bv_len -= comma - ptr.bv_val;
2764                         ptr.bv_val = comma;
2765                         i++;
2766                 }
2767                 suffrdns = i;
2768         } else {
2769                 /* suffix is "" */
2770                 suffrdns = 0;
2771         }
2772
2773         /* Start with BE suffix */
2774         ptr = dn;
2775         for ( i = 0; i < suffrdns; i++ ) {
2776                 comma = ber_bvrchr( &ptr, ',' );
2777                 if ( comma != NULL ) {
2778                         ptr.bv_len = comma - ptr.bv_val;
2779                 } else {
2780                         ptr.bv_len = 0;
2781                         break;
2782                 }
2783         }
2784
2785         if ( !BER_BVISEMPTY( &ptr ) ) {
2786                 dn.bv_len -= ptr.bv_len + 1;
2787                 dn.bv_val += ptr.bv_len + 1;
2788         }
2789
2790         /* the normalizedDNs are always the same length, no counting
2791          * required.
2792          */
2793         nptr = ndn;
2794         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2795                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2796                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2797
2798                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2799
2800         } else {
2801                 nptr.bv_len = 0;
2802         }
2803
2804         while ( ndn.bv_val > e->e_nname.bv_val ) {
2805                 glue = entry_alloc();
2806                 ber_dupbv( &glue->e_name, &dn );
2807                 ber_dupbv( &glue->e_nname, &ndn );
2808
2809                 a = attr_alloc( slap_schema.si_ad_objectClass );
2810
2811                 a->a_numvals = 2;
2812                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2813                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2814                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2815                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2816
2817                 a->a_nvals = a->a_vals;
2818
2819                 a->a_next = glue->e_attrs;
2820                 glue->e_attrs = a;
2821
2822                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2823
2824                 a->a_numvals = 1;
2825                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2826                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2827                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2828
2829                 a->a_nvals = a->a_vals;
2830
2831                 a->a_next = glue->e_attrs;
2832                 glue->e_attrs = a;
2833
2834                 op->o_req_dn = glue->e_name;
2835                 op->o_req_ndn = glue->e_nname;
2836                 op->ora_e = glue;
2837                 rc = be->be_add ( op, &rs_add );
2838                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2839                         if ( op->ora_e == glue )
2840                                 be_entry_release_w( op, glue );
2841                 } else {
2842                 /* incl. ALREADY EXIST */
2843                         entry_free( glue );
2844                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2845                                 entry_free( e );
2846                                 return rc;
2847                         }
2848                 }
2849
2850                 /* Move to next child */
2851                 comma = ber_bvrchr( &ptr, ',' );
2852                 if ( comma == NULL ) {
2853                         break;
2854                 }
2855                 ptr.bv_len = comma - ptr.bv_val;
2856
2857                 dn.bv_val = ++comma;
2858                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2859
2860                 comma = ber_bvrchr( &nptr, ',' );
2861                 assert( comma != NULL );
2862                 nptr.bv_len = comma - nptr.bv_val;
2863
2864                 ndn.bv_val = ++comma;
2865                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2866         }
2867
2868         op->o_req_dn = e->e_name;
2869         op->o_req_ndn = e->e_nname;
2870         op->ora_e = e;
2871         rc = be->be_add ( op, &rs_add );
2872         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2873                 if ( op->ora_e == e )
2874                         be_entry_release_w( op, e );
2875         } else {
2876                 entry_free( e );
2877         }
2878
2879         return rc;
2880 }
2881
2882 static int
2883 syncrepl_updateCookie(
2884         syncinfo_t *si,
2885         Operation *op,
2886         struct berval *pdn,
2887         struct sync_cookie *syncCookie )
2888 {
2889         Backend *be = op->o_bd;
2890         Modifications mod;
2891         struct berval first = BER_BVNULL;
2892
2893         int rc, i, j;
2894         ber_len_t len;
2895
2896         slap_callback cb = { NULL };
2897         SlapReply       rs_modify = {REP_RESULT};
2898
2899         mod.sml_op = LDAP_MOD_REPLACE;
2900         mod.sml_desc = slap_schema.si_ad_contextCSN;
2901         mod.sml_type = mod.sml_desc->ad_cname;
2902         mod.sml_flags = SLAP_MOD_INTERNAL;
2903         mod.sml_nvalues = NULL;
2904         mod.sml_next = NULL;
2905
2906         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2907
2908         /* clone the cookieState CSNs so we can Replace the whole thing */
2909         mod.sml_numvals = si->si_cookieState->cs_num;
2910         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2911         for ( i=0; i<mod.sml_numvals; i++ )
2912                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2913         BER_BVZERO( &mod.sml_values[i] );
2914
2915         /* find any CSNs in the syncCookie that are newer than the cookieState */
2916         for ( i=0; i<syncCookie->numcsns; i++ ) {
2917                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2918                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2919                                 continue;
2920                         len = syncCookie->ctxcsn[i].bv_len;
2921                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2922                                 len = si->si_cookieState->cs_vals[j].bv_len;
2923                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2924                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2925                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2926                                 if ( BER_BVISNULL( &first ) ) {
2927                                         first = syncCookie->ctxcsn[i];
2928
2929                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2930                                 {
2931                                         first = syncCookie->ctxcsn[i];
2932                                 }
2933                         }
2934                         break;
2935                 }
2936                 /* there was no match for this SID, it's a new CSN */
2937                 if ( j == si->si_cookieState->cs_num ) {
2938                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2939                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2940                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2941                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2942                         if ( BER_BVISNULL( &first ) ) {
2943                                 first = syncCookie->ctxcsn[i];
2944                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2945                         {
2946                                 first = syncCookie->ctxcsn[i];
2947                         }
2948                 }
2949         }
2950         /* Should never happen, ITS#5065 */
2951         if ( BER_BVISNULL( &first )) {
2952                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2953                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2954                 return 0;
2955         }
2956         op->o_bd = si->si_wbe;
2957         slap_queue_csn( op, &first );
2958
2959         op->o_tag = LDAP_REQ_MODIFY;
2960
2961         cb.sc_response = null_callback;
2962         cb.sc_private = si;
2963
2964         op->o_callback = &cb;
2965         op->o_req_dn = op->o_bd->be_suffix[0];
2966         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2967
2968         /* update contextCSN */
2969         op->o_dont_replicate = 1;
2970
2971         op->orm_modlist = &mod;
2972         op->orm_no_opattrs = 1;
2973         rc = op->o_bd->be_modify( op, &rs_modify );
2974         op->orm_no_opattrs = 0;
2975         op->o_dont_replicate = 0;
2976
2977         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2978                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2979                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2980                 /* If we replaced any old values */
2981                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2982                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2983                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2984                                                 &mod.sml_values[i] );
2985                 }
2986                 /* Handle any added values */
2987                 if ( i < mod.sml_numvals ) {
2988                         si->si_cookieState->cs_num = mod.sml_numvals;
2989                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2990                         free( si->si_cookieState->cs_sids );
2991                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2992                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2993                 }
2994
2995                 si->si_cookieState->cs_age++;
2996                 si->si_cookieAge = si->si_cookieState->cs_age;
2997         } else {
2998                 Debug( LDAP_DEBUG_ANY,
2999                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3000                         si->si_ridtxt, rs_modify.sr_err, 0 );
3001         }
3002         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3003
3004         op->o_bd = be;
3005         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3006         BER_BVZERO( &op->o_csn );
3007         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3008         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3009
3010         return rc;
3011 }
3012
3013 static void
3014 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3015         Modifications ***mret, Modifications ***mcur )
3016 {
3017         int i, j;
3018         Modifications *mod, **modtail;
3019
3020         modtail = *mret;
3021
3022         if ( old ) {
3023                 int n, o, nn, no;
3024                 struct berval **adds, **dels;
3025                 /* count old and new */
3026                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3027                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3028
3029                 /* there MUST be both old and new values */
3030                 assert( o != 0 );
3031                 assert( n != 0 );
3032                 j = 0;
3033
3034                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3035                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3036
3037                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3038                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3039
3040                 nn = n; no = o;
3041
3042                 for ( i=0; i<o; i++ ) {
3043                         for ( j=0; j<n; j++ ) {
3044                                 if ( !adds[j] )
3045                                         continue;
3046                                 if ( bvmatch( dels[i], adds[j] ) ) {
3047                                         no--;
3048                                         nn--;
3049                                         adds[j] = NULL;
3050                                         dels[i] = NULL;
3051                                         break;
3052                                 }
3053                         }
3054                 }
3055
3056                 /* Don't delete/add an objectClass, always use the replace op.
3057                  * Modify would fail if provider has replaced entry with a new,
3058                  * and the new explicitly includes a superior of a class that was
3059                  * only included implicitly in the old entry.  Ref ITS#5517.
3060                  *
3061                  * Also use replace op if attr has no equality matching rule.
3062                  * (ITS#5781)
3063                  */
3064                 if ( nn && no < o &&
3065                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3066                          !old->a_desc->ad_type->sat_equality ))
3067                         no = o;
3068
3069                 i = j;
3070                 /* all old values were deleted, just use the replace op */
3071                 if ( no == o ) {
3072                         i = j-1;
3073                 } else if ( no ) {
3074                 /* delete some values */
3075                         mod = ch_malloc( sizeof( Modifications ) );
3076                         mod->sml_op = LDAP_MOD_DELETE;
3077                         mod->sml_flags = 0;
3078                         mod->sml_desc = old->a_desc;
3079                         mod->sml_type = mod->sml_desc->ad_cname;
3080                         mod->sml_numvals = no;
3081                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3082                         if ( old->a_vals != old->a_nvals ) {
3083                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3084                         } else {
3085                                 mod->sml_nvalues = NULL;
3086                         }
3087                         j = 0;
3088                         for ( i = 0; i < o; i++ ) {
3089                                 if ( !dels[i] ) continue;
3090                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3091                                 if ( mod->sml_nvalues ) {
3092                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3093                                 }
3094                                 j++;
3095                         }
3096                         BER_BVZERO( &mod->sml_values[j] );
3097                         if ( mod->sml_nvalues ) {
3098                                 BER_BVZERO( &mod->sml_nvalues[j] );
3099                         }
3100                         *modtail = mod;
3101                         modtail = &mod->sml_next;
3102                         i = j;
3103                 }
3104                 op->o_tmpfree( dels, op->o_tmpmemctx );
3105                 /* some values were added */
3106                 if ( nn && no < o ) {
3107                         mod = ch_malloc( sizeof( Modifications ) );
3108                         mod->sml_op = LDAP_MOD_ADD;
3109                         mod->sml_flags = 0;
3110                         mod->sml_desc = old->a_desc;
3111                         mod->sml_type = mod->sml_desc->ad_cname;
3112                         mod->sml_numvals = nn;
3113                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3114                         if ( old->a_vals != old->a_nvals ) {
3115                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3116                         } else {
3117                                 mod->sml_nvalues = NULL;
3118                         }
3119                         j = 0;
3120                         for ( i = 0; i < n; i++ ) {
3121                                 if ( !adds[i] ) continue;
3122                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3123                                 if ( mod->sml_nvalues ) {
3124                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3125                                 }
3126                                 j++;
3127                         }
3128                         BER_BVZERO( &mod->sml_values[j] );
3129                         if ( mod->sml_nvalues ) {
3130                                 BER_BVZERO( &mod->sml_nvalues[j] );
3131                         }
3132                         *modtail = mod;
3133                         modtail = &mod->sml_next;
3134                         i = j;
3135                 }
3136                 op->o_tmpfree( adds, op->o_tmpmemctx );
3137         } else {
3138                 /* new attr, just use the new mod */
3139                 i = 0;
3140                 j = 1;
3141         }
3142         /* advance to next element */
3143         mod = **mcur;
3144         if ( mod ) {
3145                 if ( i != j ) {
3146                         **mcur = mod->sml_next;
3147                         *modtail = mod;
3148                         modtail = &mod->sml_next;
3149                 } else {
3150                         *mcur = &mod->sml_next;
3151                 }
3152         }
3153         *mret = modtail;
3154 }
3155
3156 static int
3157 dn_callback(
3158         Operation*      op,
3159         SlapReply*      rs )
3160 {
3161         dninfo *dni = op->o_callback->sc_private;
3162
3163         if ( rs->sr_type == REP_SEARCH ) {
3164                 if ( !BER_BVISNULL( &dni->dn ) ) {
3165                         Debug( LDAP_DEBUG_ANY,
3166                                 "dn_callback : consistency error - "
3167                                 "entryUUID is not unique\n", 0, 0, 0 );
3168                 } else {
3169                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3170                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3171                         /* If there is a new entry, see if it differs from the old.
3172                          * We compare the non-normalized values so that cosmetic changes
3173                          * in the provider are always propagated.
3174                          */
3175                         if ( dni->new_entry ) {
3176                                 Modifications **modtail, **ml;
3177                                 Attribute *old, *new;
3178                                 struct berval old_rdn, new_rdn;
3179                                 struct berval old_p, new_p;
3180                                 int is_ctx, new_sup = 0;
3181
3182                                 /* If old entry is not a glue entry, make sure new entry
3183                                  * is actually newer than old entry
3184                                  */
3185                                 if ( !is_entry_glue( rs->sr_entry )) {
3186                                         old = attr_find( rs->sr_entry->e_attrs,
3187                                                 slap_schema.si_ad_objectClass );
3188                                         old = attr_find( rs->sr_entry->e_attrs,
3189                                                 slap_schema.si_ad_entryCSN );
3190                                         new = attr_find( dni->new_entry->e_attrs,
3191                                                 slap_schema.si_ad_entryCSN );
3192                                         if ( new && old ) {
3193                                                 int rc;
3194                                                 ber_len_t len = old->a_vals[0].bv_len;
3195                                                 if ( len > new->a_vals[0].bv_len )
3196                                                         len = new->a_vals[0].bv_len;
3197                                                 rc = memcmp( old->a_vals[0].bv_val,
3198                                                         new->a_vals[0].bv_val, len );
3199                                                 if ( rc > 0 ) {
3200                                                         Debug( LDAP_DEBUG_SYNC,
3201                                                                 "dn_callback : new entry is older than ours "
3202                                                                 "%s ours %s, new %s\n",
3203                                                                 rs->sr_entry->e_name.bv_val,
3204                                                                 old->a_vals[0].bv_val,
3205                                                                 new->a_vals[0].bv_val );
3206                                                         return LDAP_SUCCESS;
3207                                                 } else if ( rc == 0 ) {
3208                                                         Debug( LDAP_DEBUG_SYNC,
3209                                                                 "dn_callback : entries have identical CSN "
3210                                                                 "%s %s\n",
3211                                                                 rs->sr_entry->e_name.bv_val,
3212                                                                 old->a_vals[0].bv_val, 0 );
3213                                                         return LDAP_SUCCESS;
3214                                                 }
3215                                         }
3216                                 }
3217
3218                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3219                                         &op->o_bd->be_nsuffix[0] );
3220
3221                                 /* Did the DN change?
3222                                  * case changes in the parent are ignored,
3223                                  * we only want to know if the RDN was
3224                                  * actually changed.
3225                                  */
3226                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3227                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3228                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3229                                 dnParent( &dni->new_entry->e_nname, &new_p );
3230
3231                                 new_sup = !dn_match( &old_p, &new_p );
3232                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3233                                 {
3234                                         struct berval oldRDN, oldVal;
3235                                         AttributeDescription *ad = NULL;
3236                                         int oldpos, newpos;
3237                                         Attribute *a;
3238
3239                                         dni->renamed = 1;
3240                                         if ( new_sup )
3241                                                 dni->nnewSup = new_p;
3242
3243                                         /* See if the oldRDN was deleted */
3244                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3245                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3246                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3247                                                 oldRDN.bv_val );
3248                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3249                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3250                                         dni->oldDesc = ad;
3251                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3252                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3253                                         dni->oldNattr = a;
3254                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3255                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3256                                         if ( !a || oldpos != newpos || attr_valfind( a,
3257                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3258                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3259                                                 SLAP_MR_VALUE_OF_SYNTAX,
3260                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3261                                         {
3262                                                 dni->delOldRDN = 1;
3263                                         }
3264                                         /* Get the newRDN's desc */
3265                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3266                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3267                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3268                                         ad = NULL;
3269                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3270                                         dni->newDesc = ad;
3271
3272                                         /* A ModDN has happened, but in Refresh mode other
3273                                          * changes may have occurred before we picked it up.
3274                                          * So fallthru to regular Modify processing.
3275                                          */
3276                                 }
3277
3278                                 modtail = &dni->mods;
3279                                 ml = dni->modlist;
3280
3281                                 /* We assume that attributes are saved in the same order
3282                                  * in the remote and local databases. So if we walk through
3283                                  * the attributeDescriptions one by one they should match in
3284                                  * lock step. If not, look for an add or delete.
3285                                  */
3286                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3287                                                 old && new; )
3288                                 {
3289                                         /* If we've seen this before, use its mod now */
3290                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3291                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3292                                                 new = new->a_next;
3293                                                 continue;
3294                                         }
3295                                         /* Skip contextCSN */
3296                                         if ( is_ctx && old->a_desc ==
3297                                                 slap_schema.si_ad_contextCSN ) {
3298                                                 old = old->a_next;
3299                                                 continue;
3300                                         }
3301
3302                                         if ( old->a_desc != new->a_desc ) {
3303                                                 Modifications *mod;
3304                                                 Attribute *tmp;
3305
3306                                                 /* If it's just been re-added later,
3307                                                  * remember that we've seen it.
3308                                                  */
3309                                                 tmp = attr_find( new, old->a_desc );
3310                                                 if ( tmp ) {
3311                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3312                                                 } else {
3313                                                         /* If it's a new attribute, pull it in.
3314                                                          */
3315                                                         tmp = attr_find( old, new->a_desc );
3316                                                         if ( !tmp ) {
3317                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3318                                                                 new = new->a_next;
3319                                                                 continue;
3320                                                         }
3321                                                         /* Delete old attr */
3322                                                         mod = ch_malloc( sizeof( Modifications ) );
3323                                                         mod->sml_op = LDAP_MOD_DELETE;
3324                                                         mod->sml_flags = 0;
3325                                                         mod->sml_desc = old->a_desc;
3326                                                         mod->sml_type = mod->sml_desc->ad_cname;
3327                                                         mod->sml_numvals = 0;
3328                                                         mod->sml_values = NULL;
3329                                                         mod->sml_nvalues = NULL;
3330                                                         *modtail = mod;
3331                                                         modtail = &mod->sml_next;
3332                                                 }
3333                                                 old = old->a_next;
3334                                                 continue;
3335                                         }
3336                                         /* kludge - always update modifiersName so that it
3337                                          * stays co-located with the other mod opattrs. But only
3338                                          * if we know there are other valid mods.
3339                                          */
3340                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3341                                                 dni->mods )
3342                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3343                                         else
3344                                                 attr_cmp( op, old, new, &modtail, &ml );
3345                                         new = new->a_next;
3346                                         old = old->a_next;
3347                                 }
3348                                 *modtail = *ml;
3349                                 *ml = NULL;
3350                         }
3351                 }
3352         } else if ( rs->sr_type == REP_RESULT ) {
3353                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3354                         Debug( LDAP_DEBUG_ANY,
3355                                 "dn_callback : consistency error - "
3356                                 "entryUUID is not unique\n", 0, 0, 0 );
3357                 }
3358         }
3359
3360         return LDAP_SUCCESS;
3361 }
3362
3363 static int
3364 nonpresent_callback(
3365         Operation*      op,
3366         SlapReply*      rs )
3367 {
3368         syncinfo_t *si = op->o_callback->sc_private;
3369         Attribute *a;
3370         int count = 0;
3371         struct berval* present_uuid = NULL;
3372         struct nonpresent_entry *np_entry;
3373
3374         if ( rs->sr_type == REP_RESULT ) {
3375                 count = avl_free( si->si_presentlist, ch_free );
3376                 si->si_presentlist = NULL;
3377
3378         } else if ( rs->sr_type == REP_SEARCH ) {
3379                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3380                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3381
3382                         if ( a ) {
3383                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3384                                         syncuuid_cmp );
3385                         }
3386
3387                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3388                                 char buf[sizeof("rid=999 non")];
3389
3390                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3391                                         present_uuid ? "" : "non" );
3392
3393                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3394                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3395                         }
3396
3397                         if ( a == NULL ) return 0;
3398                 }
3399
3400                 if ( present_uuid == NULL ) {
3401                         np_entry = (struct nonpresent_entry *)
3402                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3403                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3404                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3405                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3406
3407                 } else {
3408                         avl_delete( &si->si_presentlist,
3409                                 &a->a_nvals[0], syncuuid_cmp );
3410                         ch_free( present_uuid );
3411                 }
3412         }
3413         return LDAP_SUCCESS;
3414 }
3415
3416 static int
3417 null_callback(
3418         Operation*      op,
3419         SlapReply*      rs )
3420 {
3421         if ( rs->sr_err != LDAP_SUCCESS &&
3422                 rs->sr_err != LDAP_REFERRAL &&
3423                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3424                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3425                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3426         {
3427                 Debug( LDAP_DEBUG_ANY,
3428                         "null_callback : error code 0x%x\n",
3429                         rs->sr_err, 0, 0 );
3430         }
3431         return LDAP_SUCCESS;
3432 }
3433
3434 static struct berval *
3435 slap_uuidstr_from_normalized(
3436         struct berval* uuidstr,
3437         struct berval* normalized,
3438         void *ctx )
3439 {
3440 #if 0
3441         struct berval *new;
3442         unsigned char nibble;
3443         int i, d = 0;
3444
3445         if ( normalized == NULL ) return NULL;
3446         if ( normalized->bv_len != 16 ) return NULL;
3447
3448         if ( uuidstr ) {
3449                 new = uuidstr;
3450         } else {
3451                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3452                 if ( new == NULL ) {
3453                         return NULL;
3454                 }
3455         }
3456
3457         new->bv_len = 36;
3458
3459         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3460                 if ( new != uuidstr ) {
3461                         slap_sl_free( new, ctx );
3462                 }
3463                 return NULL;
3464         }
3465
3466         for ( i = 0; i < 16; i++ ) {
3467                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3468                         new->bv_val[(i<<1)+d] = '-';
3469                         d += 1;
3470                 }
3471
3472                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3473                 if ( nibble < 10 ) {
3474                         new->bv_val[(i<<1)+d] = nibble + '0';
3475                 } else {
3476                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3477                 }
3478
3479                 nibble = (normalized->bv_val[i]) & 0xF;
3480                 if ( nibble < 10 ) {
3481                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3482                 } else {
3483                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3484                 }
3485         }
3486
3487         new->bv_val[new->bv_len] = '\0';
3488         return new;
3489 #endif
3490
3491         struct berval   *new;
3492         int             rc = 0;
3493
3494         if ( normalized == NULL ) return NULL;
3495         if ( normalized->bv_len != 16 ) return NULL;
3496
3497         if ( uuidstr ) {
3498                 new = uuidstr;
3499
3500         } else {
3501                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3502                 if ( new == NULL ) {
3503                         return NULL;
3504                 }
3505         }
3506
3507         new->bv_len = 36;
3508
3509         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3510                 rc = 1;
3511                 goto done;
3512         }
3513
3514         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3515                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3516
3517 done:;
3518         if ( rc == -1 ) {
3519                 if ( new != NULL ) {
3520                         if ( new->bv_val != NULL ) {
3521                                 slap_sl_free( new->bv_val, ctx );
3522                         }
3523
3524                         if ( new != uuidstr ) {
3525                                 slap_sl_free( new, ctx );
3526                         }
3527                 }
3528                 new = NULL;
3529
3530         } else {
3531                 new->bv_len = rc;
3532         }
3533
3534         return new;
3535 }
3536
3537 static int
3538 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3539 {
3540         const struct berval *uuid1 = v_uuid1;
3541         const struct berval *uuid2 = v_uuid2;
3542         int rc = uuid1->bv_len - uuid2->bv_len;
3543         if ( rc ) return rc;
3544         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3545 }
3546
3547 void
3548 syncinfo_free( syncinfo_t *sie, int free_all )
3549 {
3550         syncinfo_t *si_next;
3551
3552         if ( free_all && sie->si_cookieState ) {
3553                 ch_free( sie->si_cookieState->cs_sids );
3554                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3555                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3556                 ch_free( sie->si_cookieState );
3557         }
3558         do {
3559                 si_next = sie->si_next;
3560
3561                 if ( sie->si_ld ) {
3562                         if ( sie->si_conn ) {
3563                                 connection_client_stop( sie->si_conn );
3564                                 sie->si_conn = NULL;
3565                         }
3566                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3567                 }
3568
3569                 /* re-fetch it, in case it was already removed */
3570                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3571                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3572                 if ( sie->si_re ) {
3573                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3574                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3575                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3576                 }
3577
3578                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3579                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3580
3581                 bindconf_free( &sie->si_bindconf );
3582
3583                 if ( sie->si_filterstr.bv_val ) {
3584                         ch_free( sie->si_filterstr.bv_val );
3585                 }
3586                 if ( sie->si_logfilterstr.bv_val ) {
3587                         ch_free( sie->si_logfilterstr.bv_val );
3588                 }
3589                 if ( sie->si_base.bv_val ) {
3590                         ch_free( sie->si_base.bv_val );
3591                 }
3592                 if ( sie->si_logbase.bv_val ) {
3593                         ch_free( sie->si_logbase.bv_val );
3594                 }
3595                 if ( sie->si_attrs ) {
3596                         int i = 0;
3597                         while ( sie->si_attrs[i] != NULL ) {
3598                                 ch_free( sie->si_attrs[i] );
3599                                 i++;
3600                         }
3601                         ch_free( sie->si_attrs );
3602                 }
3603                 if ( sie->si_exattrs ) {
3604                         int i = 0;
3605                         while ( sie->si_exattrs[i] != NULL ) {
3606                                 ch_free( sie->si_exattrs[i] );
3607                                 i++;
3608                         }
3609                         ch_free( sie->si_exattrs );
3610                 }
3611                 if ( sie->si_anlist ) {
3612                         int i = 0;
3613                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3614                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3615                                 i++;
3616                         }
3617                         ch_free( sie->si_anlist );
3618                 }
3619                 if ( sie->si_exanlist ) {
3620                         int i = 0;
3621                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3622                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3623                                 i++;
3624                         }
3625                         ch_free( sie->si_exanlist );
3626                 }
3627                 if ( sie->si_retryinterval ) {
3628                         ch_free( sie->si_retryinterval );
3629                 }
3630                 if ( sie->si_retrynum ) {
3631                         ch_free( sie->si_retrynum );
3632                 }
3633                 if ( sie->si_retrynum_init ) {
3634                         ch_free( sie->si_retrynum_init );
3635                 }
3636                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3637                 if ( sie->si_presentlist ) {
3638                     avl_free( sie->si_presentlist, ch_free );
3639                 }
3640                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3641                         struct nonpresent_entry* npe;
3642                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3643                         LDAP_LIST_REMOVE( npe, npe_link );
3644                         if ( npe->npe_name ) {
3645                                 if ( npe->npe_name->bv_val ) {
3646                                         ch_free( npe->npe_name->bv_val );
3647                                 }
3648                                 ch_free( npe->npe_name );
3649                         }
3650                         if ( npe->npe_nname ) {
3651                                 if ( npe->npe_nname->bv_val ) {
3652                                         ch_free( npe->npe_nname->bv_val );
3653                                 }
3654                                 ch_free( npe->npe_nname );
3655                         }
3656                         ch_free( npe );
3657                 }
3658                 ch_free( sie );
3659                 sie = si_next;
3660         } while ( free_all && si_next );
3661 }
3662
3663
3664
3665 /* NOTE: used & documented in slapd.conf(5) */
3666 #define IDSTR                   "rid"
3667 #define PROVIDERSTR             "provider"
3668 #define SCHEMASTR               "schemachecking"
3669 #define FILTERSTR               "filter"
3670 #define SEARCHBASESTR           "searchbase"
3671 #define SCOPESTR                "scope"
3672 #define ATTRSONLYSTR            "attrsonly"
3673 #define ATTRSSTR                "attrs"
3674 #define TYPESTR                 "type"
3675 #define INTERVALSTR             "interval"
3676 #define RETRYSTR                "retry"
3677 #define SLIMITSTR               "sizelimit"
3678 #define TLIMITSTR               "timelimit"
3679 #define SYNCDATASTR             "syncdata"
3680 #define LOGBASESTR              "logbase"
3681 #define LOGFILTERSTR    "logfilter"
3682
3683 /* FIXME: undocumented */
3684 #define EXATTRSSTR              "exattrs"
3685 #define MANAGEDSAITSTR          "manageDSAit"
3686
3687 /* mandatory */
3688 enum {
3689         GOT_RID                 = 0x00000001U,
3690         GOT_PROVIDER            = 0x00000002U,
3691         GOT_SCHEMACHECKING      = 0x00000004U,
3692         GOT_FILTER              = 0x00000008U,
3693         GOT_SEARCHBASE          = 0x00000010U,
3694         GOT_SCOPE               = 0x00000020U,
3695         GOT_ATTRSONLY           = 0x00000040U,
3696         GOT_ATTRS               = 0x00000080U,
3697         GOT_TYPE                = 0x00000100U,
3698         GOT_INTERVAL            = 0x00000200U,
3699         GOT_RETRY               = 0x00000400U,
3700         GOT_SLIMIT              = 0x00000800U,
3701         GOT_TLIMIT              = 0x00001000U,
3702         GOT_SYNCDATA            = 0x00002000U,
3703         GOT_LOGBASE             = 0x00004000U,
3704         GOT_LOGFILTER           = 0x00008000U,
3705         GOT_EXATTRS             = 0x00010000U,
3706         GOT_MANAGEDSAIT         = 0x00020000U,
3707         GOT_BINDCONF            = 0x00040000U,
3708
3709 /* check */
3710         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3711 };
3712
3713 static struct {
3714         struct berval key;
3715         int val;
3716 } scopes[] = {
3717         { BER_BVC("base"), LDAP_SCOPE_BASE },
3718         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3719         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3720         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3721         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3722         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3723         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3724         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3725         { BER_BVNULL, 0 }
3726 };
3727
3728 static slap_verbmasks datamodes[] = {
3729         { BER_BVC("default"), SYNCDATA_DEFAULT },
3730         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3731         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3732         { BER_BVNULL, 0 }
3733 };
3734
3735 static int
3736 parse_syncrepl_retry(
3737         ConfigArgs      *c,
3738         char            *arg,
3739         syncinfo_t      *si )
3740 {
3741         char **retry_list;
3742         int j, k, n;
3743         int use_default = 0;
3744
3745         char *val = arg + STRLENOF( RETRYSTR "=" );
3746         if ( strcasecmp( val, "undefined" ) == 0 ) {
3747                 val = "3600 +";
3748                 use_default = 1;
3749         }
3750
3751         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3752         retry_list[0] = NULL;
3753
3754         slap_str2clist( &retry_list, val, " ,\t" );
3755
3756         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3757         n = k / 2;
3758         if ( k % 2 ) {
3759                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3760                         "Error: incomplete syncrepl retry list" );
3761                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3762                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3763                         ch_free( retry_list[k] );
3764                 }
3765                 ch_free( retry_list );
3766                 return 1;
3767         }
3768         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3769         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3770         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3771         for ( j = 0; j < n; j++ ) {
3772                 unsigned long   t;
3773                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3774                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3775                                 "Error: invalid retry interval \"%s\" (#%d)",
3776                                 retry_list[j*2], j );
3777                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3778                         /* do some cleanup */
3779                         return 1;
3780                 }
3781                 si->si_retryinterval[j] = (time_t)t;
3782                 if ( *retry_list[j*2+1] == '+' ) {
3783                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3784                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3785                         j++;
3786                         break;
3787                 } else {
3788                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3789                                         || si->si_retrynum_init[j] <= 0 )
3790                         {
3791                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3792                                         "Error: invalid initial retry number \"%s\" (#%d)",
3793                                         retry_list[j*2+1], j );
3794                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3795                                 /* do some cleanup */
3796                                 return 1;
3797                         }
3798                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3799                                         || si->si_retrynum[j] <= 0 )
3800                         {
3801                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3802                                         "Error: invalid 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                 }
3809         }
3810         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3811         si->si_retrynum[j] = RETRYNUM_TAIL;
3812         si->si_retryinterval[j] = 0;
3813
3814         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3815                 ch_free( retry_list[k] );
3816         }
3817         ch_free( retry_list );
3818         if ( !use_default ) {
3819                 si->si_got |= GOT_RETRY;
3820         }
3821
3822         return 0;
3823 }
3824
3825 static int
3826 parse_syncrepl_line(
3827         ConfigArgs      *c,
3828         syncinfo_t      *si )
3829 {
3830         int     i;
3831         char    *val;
3832
3833         for ( i = 1; i < c->argc; i++ ) {
3834                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3835                                         STRLENOF( IDSTR "=" ) ) )
3836                 {
3837                         int tmp;
3838                         /* '\0' string terminator accounts for '=' */
3839                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3840                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3841                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3842                                         "Error: parse_syncrepl_line: "
3843                                         "unable to parse syncrepl id \"%s\"", val );
3844                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3845                                 return -1;
3846                         }
3847                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3848                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3849                                         "Error: parse_syncrepl_line: "
3850                                         "syncrepl id %d is out of range [0..4095]", tmp );
3851                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3852                                 return -1;
3853                         }
3854                         si->si_rid = tmp;
3855                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3856                         si->si_got |= GOT_RID;
3857                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3858                                         STRLENOF( PROVIDERSTR "=" ) ) )
3859                 {
3860                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3861                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3862                         si->si_got |= GOT_PROVIDER;
3863                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3864                                         STRLENOF( SCHEMASTR "=" ) ) )
3865                 {
3866                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3867                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3868                                 si->si_schemachecking = 1;
3869                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3870                                 si->si_schemachecking = 0;
3871                         } else {
3872                                 si->si_schemachecking = 1;
3873                         }
3874                         si->si_got |= GOT_SCHEMACHECKING;
3875                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3876                                         STRLENOF( FILTERSTR "=" ) ) )
3877                 {
3878                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3879                         if ( si->si_filterstr.bv_val )
3880                                 ch_free( si->si_filterstr.bv_val );
3881                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3882                         si->si_got |= GOT_FILTER;
3883                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3884                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3885                 {
3886                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3887                         if ( si->si_logfilterstr.bv_val )
3888                                 ch_free( si->si_logfilterstr.bv_val );
3889                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3890                         si->si_got |= GOT_LOGFILTER;
3891                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3892                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3893                 {
3894                         struct berval   bv;
3895                         int             rc;
3896
3897                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3898                         if ( si->si_base.bv_val ) {
3899                                 ch_free( si->si_base.bv_val );
3900                         }
3901                         ber_str2bv( val, 0, 0, &bv );
3902                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3903                         if ( rc != LDAP_SUCCESS ) {
3904                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3905                                         "Invalid base DN \"%s\": %d (%s)",
3906                                         val, rc, ldap_err2string( rc ) );
3907                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3908                                 return -1;
3909                         }
3910                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3911                                 ch_free( si->si_base.bv_val );
3912                                 BER_BVZERO( &si->si_base );
3913                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3914                                         "Base DN \"%s\" is not within the database naming context",
3915                                         val );
3916                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3917                                 return -1;
3918                         }
3919                         si->si_got |= GOT_SEARCHBASE;
3920                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3921                                         STRLENOF( LOGBASESTR "=" ) ) )
3922                 {
3923                         struct berval   bv;
3924                         int             rc;
3925
3926                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3927                         if ( si->si_logbase.bv_val ) {
3928                                 ch_free( si->si_logbase.bv_val );
3929                         }
3930                         ber_str2bv( val, 0, 0, &bv );
3931                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3932                         if ( rc != LDAP_SUCCESS ) {
3933                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3934                                         "Invalid logbase DN \"%s\": %d (%s)",
3935                                         val, rc, ldap_err2string( rc ) );
3936                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3937                                 return -1;
3938                         }
3939                         si->si_got |= GOT_LOGBASE;
3940                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3941                                         STRLENOF( SCOPESTR "=" ) ) )
3942                 {
3943                         int j;
3944                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3945                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3946                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3947                                         si->si_scope = scopes[j].val;
3948                                         break;
3949                                 }
3950                         }
3951                         if ( BER_BVISNULL(&scopes[j].key) ) {
3952                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3953                                         "Error: parse_syncrepl_line: "
3954                                         "unknown scope \"%s\"", val);
3955                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3956                                 return -1;
3957                         }
3958                         si->si_got |= GOT_SCOPE;
3959                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3960                                         STRLENOF( ATTRSONLYSTR ) ) )
3961                 {
3962                         si->si_attrsonly = 1;
3963                         si->si_got |= GOT_ATTRSONLY;
3964                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3965                                         STRLENOF( ATTRSSTR "=" ) ) )
3966                 {
3967                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3968                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3969                                 char *attr_fname;
3970                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3971                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3972                                 if ( si->si_anlist == NULL ) {
3973                                         ch_free( attr_fname );
3974                                         return -1;
3975                                 }
3976                                 si->si_anfile = attr_fname;
3977                         } else {
3978                                 char *str, *s, *next;
3979                                 const char *delimstr = " ,\t";
3980                                 str = ch_strdup( val );
3981                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3982                                                 s != NULL;
3983                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3984                                 {
3985                                         if ( strlen(s) == 1 && *s == '*' ) {
3986                                                 si->si_allattrs = 1;
3987                                                 val[ s - str ] = delimstr[0];
3988                                         }
3989                                         if ( strlen(s) == 1 && *s == '+' ) {
3990                                                 si->si_allopattrs = 1;
3991                                                 val [ s - str ] = delimstr[0];
3992                                         }
3993                                 }
3994                                 ch_free( str );
3995                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3996                                 if ( si->si_anlist == NULL ) {
3997                                         return -1;
3998                                 }
3999                         }
4000                         si->si_got |= GOT_ATTRS;
4001                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4002                                         STRLENOF( EXATTRSSTR "=" ) ) )
4003                 {
4004                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4005                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4006                                 char *attr_fname;
4007                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4008                                 si->si_exanlist = file2anlist(
4009                                         si->si_exanlist, attr_fname, " ,\t" );
4010                                 if ( si->si_exanlist == NULL ) {
4011                                         ch_free( attr_fname );
4012                                         return -1;
4013                                 }
4014                                 ch_free( attr_fname );
4015                         } else {
4016                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4017                                 if ( si->si_exanlist == NULL ) {
4018                                         return -1;
4019                                 }
4020                         }
4021                         si->si_got |= GOT_EXATTRS;
4022                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4023                                         STRLENOF( TYPESTR "=" ) ) )
4024                 {
4025                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4026                         if ( !strncasecmp( val, "refreshOnly",
4027                                                 STRLENOF("refreshOnly") ) )
4028                         {
4029                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4030                         } else if ( !strncasecmp( val, "refreshAndPersist",
4031                                                 STRLENOF("refreshAndPersist") ) )
4032                         {
4033                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4034                                 si->si_interval = 60;
4035                         } else {
4036                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4037                                         "Error: parse_syncrepl_line: "
4038                                         "unknown sync type \"%s\"", val);
4039                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4040                                 return -1;
4041                         }
4042                         si->si_got |= GOT_TYPE;
4043                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4044                                         STRLENOF( INTERVALSTR "=" ) ) )
4045                 {
4046                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4047                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4048                                 si->si_interval = 0;
4049                         } else if ( strchr( val, ':' ) != NULL ) {
4050                                 char *next, *ptr = val;
4051                                 int dd, hh, mm, ss;
4052
4053                                 dd = strtol( ptr, &next, 10 );
4054                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4055                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4056                                                 "Error: parse_syncrepl_line: "
4057                                                 "invalid interval \"%s\", unable to parse days", val );
4058                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4059                                         return -1;
4060                                 }
4061                                 ptr = next + 1;
4062                                 hh = strtol( ptr, &next, 10 );
4063                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4064                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4065                                                 "Error: parse_syncrepl_line: "
4066                                                 "invalid interval \"%s\", unable to parse hours", val );
4067                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4068                                         return -1;
4069                                 }
4070                                 ptr = next + 1;
4071                                 mm = strtol( ptr, &next, 10 );
4072                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4073                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4074                                                 "Error: parse_syncrepl_line: "
4075                                                 "invalid interval \"%s\", unable to parse minutes", val );
4076                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4077                                         return -1;
4078                                 }
4079                                 ptr = next + 1;
4080                                 ss = strtol( ptr, &next, 10 );
4081                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4082                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4083                                                 "Error: parse_syncrepl_line: "
4084                                                 "invalid interval \"%s\", unable to parse seconds", val );
4085                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4086                                         return -1;
4087                                 }
4088                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4089                         } else {
4090                                 unsigned long   t;
4091
4092                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4093                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4094                                                 "Error: parse_syncrepl_line: "
4095                                                 "invalid interval \"%s\"", val );
4096                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4097                                         return -1;
4098                                 }
4099                                 si->si_interval = (time_t)t;
4100                         }
4101                         if ( si->si_interval < 0 ) {
4102                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4103                                         "Error: parse_syncrepl_line: "
4104                                         "invalid interval \"%ld\"",
4105                                         (long) si->si_interval);
4106                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4107                                 return -1;
4108                         }
4109                         si->si_got |= GOT_INTERVAL;
4110                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4111                                         STRLENOF( RETRYSTR "=" ) ) )
4112                 {
4113                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4114                                 return 1;
4115                         }
4116                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4117                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4118                 {
4119                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4120                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4121                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4122                         {
4123                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4124                                         "invalid manageDSAit value \"%s\".\n",
4125                                         val );
4126                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4127                                 return 1;
4128                         }
4129                         si->si_got |= GOT_MANAGEDSAIT;
4130                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4131                                         STRLENOF( SLIMITSTR "=") ) )
4132                 {
4133                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4134                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4135                                 si->si_slimit = 0;
4136
4137                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4138                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4139                                         "invalid size limit value \"%s\".\n",
4140                                         val );
4141                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4142                                 return 1;
4143                         }
4144                         si->si_got |= GOT_SLIMIT;
4145                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4146                                         STRLENOF( TLIMITSTR "=" ) ) )
4147                 {
4148                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4149                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4150                                 si->si_tlimit = 0;
4151
4152                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4153                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4154                                         "invalid time limit value \"%s\".\n",
4155                                         val );
4156                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4157                                 return 1;
4158                         }
4159                         si->si_got |= GOT_TLIMIT;
4160                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4161                                         STRLENOF( SYNCDATASTR "=" ) ) )
4162                 {
4163                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4164                         si->si_syncdata = verb_to_mask( val, datamodes );
4165                         si->si_got |= GOT_SYNCDATA;
4166                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4167                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4168                                 "Error: parse_syncrepl_line: "
4169                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4170                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4171                         return -1;
4172                 }
4173                 si->si_got |= GOT_BINDCONF;
4174         }
4175
4176         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4177                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4178                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4179                         si->si_got & GOT_RID ? "" : " "IDSTR,
4180                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4181                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4182                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4183                 return -1;
4184         }
4185
4186         if ( !( si->si_got & GOT_RETRY ) ) {
4187                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4188                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4189                 if ( si->si_retryinterval == NULL ) {
4190                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4191                                 return 1;
4192                         }
4193                 }
4194         }
4195
4196         return 0;
4197 }
4198
4199 static int
4200 add_syncrepl(
4201         ConfigArgs *c )
4202 {
4203         syncinfo_t *si;
4204         int     rc = 0;
4205
4206         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4207                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4208                         "operations required for syncrepl", c->be->be_type );
4209                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4210                 return 1;
4211         }
4212         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4213                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4214                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4215                 return 1;
4216         }
4217         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4218
4219         if ( si == NULL ) {
4220                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4221                 return 1;
4222         }
4223
4224         si->si_bindconf.sb_tls = SB_TLS_OFF;
4225         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4226         si->si_schemachecking = 0;
4227         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4228                 &si->si_filterstr );
4229         si->si_base.bv_val = NULL;
4230         si->si_scope = LDAP_SCOPE_SUBTREE;
4231         si->si_attrsonly = 0;
4232         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4233         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4234         si->si_attrs = NULL;
4235         si->si_allattrs = 0;
4236         si->si_allopattrs = 0;
4237         si->si_exattrs = NULL;
4238         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4239         si->si_interval = 86400;
4240         si->si_retryinterval = NULL;
4241         si->si_retrynum_init = NULL;
4242         si->si_retrynum = NULL;
4243         si->si_manageDSAit = 0;
4244         si->si_tlimit = 0;
4245         si->si_slimit = 0;
4246
4247         si->si_presentlist = NULL;
4248         LDAP_LIST_INIT( &si->si_nonpresentlist );
4249         ldap_pvt_thread_mutex_init( &si->si_mutex );
4250
4251         rc = parse_syncrepl_line( c, si );
4252
4253         if ( rc == 0 ) {
4254                 /* Must be LDAPv3 because we need controls */
4255                 switch ( si->si_bindconf.sb_version ) {
4256                 case 0:
4257                         /* not explicitly set */
4258                         si->si_bindconf.sb_version = LDAP_VERSION3;
4259                         break;
4260                 case 3:
4261                         /* explicitly set */
4262                         break;
4263                 default:
4264                         Debug( LDAP_DEBUG_ANY,
4265                                 "version %d incompatible with syncrepl\n",
4266                                 si->si_bindconf.sb_version, 0, 0 );
4267                         syncinfo_free( si, 0 );
4268                         return 1;
4269                 }
4270
4271                 si->si_be = c->be;
4272                 if ( slapMode & SLAP_SERVER_MODE ) {
4273                         Listener **l = slapd_get_listeners();
4274                         int isMe = 0;
4275
4276                         /* check if URL points to current server. If so, ignore
4277                          * this configuration. We require an exact match. Just
4278                          * in case they really want to do this, they can vary
4279                          * the case of the URL to allow it.
4280                          */
4281                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4282                                 int i;
4283                                 for ( i=0; l[i]; i++ ) {
4284                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4285                                                 isMe = 1;
4286                                                 break;
4287                                         }
4288                                 }
4289                         }
4290
4291                         if ( !isMe ) {
4292                                 init_syncrepl( si );
4293                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4294                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4295                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4296                                         si->si_ridtxt );
4297                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4298                                 if ( si->si_re )
4299                                         rc = config_sync_shadow( c ) ? -1 : 0;
4300                                 else
4301                                         rc = -1;
4302                         }
4303                 } else {
4304                         /* mirrormode still needs to see this flag in tool mode */
4305                         rc = config_sync_shadow( c ) ? -1 : 0;
4306                 }
4307         }
4308
4309 #ifdef HAVE_TLS
4310         /* Use main slapd defaults */
4311         bindconf_tls_defaults( &si->si_bindconf );
4312 #endif
4313         if ( rc < 0 ) {
4314                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4315                 syncinfo_free( si, 0 );
4316                 return 1;
4317         } else {
4318                 Debug( LDAP_DEBUG_CONFIG,
4319                         "Config: ** successfully added syncrepl \"%s\"\n",
4320                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4321                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4322                 if ( c->be->be_syncinfo ) {
4323                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4324                 } else {
4325                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4326                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4327                 }
4328                 si->si_next = c->be->be_syncinfo;
4329                 c->be->be_syncinfo = si;
4330                 return 0;
4331         }
4332 }
4333
4334 static void
4335 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4336 {
4337         struct berval bc, uri;
4338         char buf[BUFSIZ*2], *ptr;
4339         ber_len_t len;
4340         int i;
4341 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4342
4343         BER_BVZERO( bv );
4344
4345         /* temporarily inhibit bindconf from printing URI */
4346         uri = si->si_bindconf.sb_uri;
4347         BER_BVZERO( &si->si_bindconf.sb_uri );
4348         si->si_bindconf.sb_version = 0;
4349         bindconf_unparse( &si->si_bindconf, &bc );
4350         si->si_bindconf.sb_uri = uri;
4351         si->si_bindconf.sb_version = LDAP_VERSION3;
4352
4353         ptr = buf;
4354         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4355         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4356                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4357         if ( len >= sizeof( buf ) ) return;
4358         ptr += len;
4359         if ( !BER_BVISNULL( &bc ) ) {
4360                 if ( WHATSLEFT <= bc.bv_len ) {
4361                         free( bc.bv_val );
4362                         return;
4363                 }
4364                 ptr = lutil_strcopy( ptr, bc.bv_val );
4365                 free( bc.bv_val );
4366         }
4367         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4368                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4369                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4370                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4371                 *ptr++ = '"';
4372         }
4373         if ( !BER_BVISNULL( &si->si_base ) ) {
4374                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4375                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4376                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4377                 *ptr++ = '"';
4378         }
4379         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4380                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4381                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4382                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4383                 *ptr++ = '"';
4384         }
4385         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4386                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4387                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4388                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4389                 *ptr++ = '"';
4390         }
4391         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4392                 if ( si->si_scope == scopes[i].val ) {
4393                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4394                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4395                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4396                         break;
4397                 }
4398         }
4399         if ( si->si_attrsonly ) {
4400                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4401                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4402         }
4403         if ( si->si_anfile ) {
4404                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4405                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4406                 ptr = lutil_strcopy( ptr, si->si_anfile );
4407                 *ptr++ = '"';
4408         } else if ( si->si_allattrs || si->si_allopattrs ||
4409                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4410         {
4411                 char *old;
4412
4413                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4414                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4415                 old = ptr;
4416                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4417                 if ( ptr == NULL ) return;
4418                 if ( si->si_allattrs ) {
4419                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4420                         if ( old != ptr ) *ptr++ = ',';
4421                         *ptr++ = '*';
4422                 }
4423                 if ( si->si_allopattrs ) {
4424                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4425                         if ( old != ptr ) *ptr++ = ',';
4426                         *ptr++ = '+';
4427                 }
4428                 *ptr++ = '"';
4429         }
4430         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4431                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4432                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4433                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4434                 if ( ptr == NULL ) return;
4435         }
4436         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4437         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4438         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4439
4440         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4441         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4442         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4443                 "refreshAndPersist" : "refreshOnly" );
4444
4445         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4446                 int dd, hh, mm, ss;
4447
4448                 dd = si->si_interval;
4449                 ss = dd % 60;
4450                 dd /= 60;
4451                 mm = dd % 60;
4452                 dd /= 60;
4453                 hh = dd % 24;
4454                 dd /= 24;
4455                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4456                         INTERVALSTR, dd, hh, mm, ss );
4457                 if ( len >= WHATSLEFT ) return;
4458                 ptr += len;
4459         }
4460
4461         if ( si->si_got & GOT_RETRY ) {
4462                 const char *space = "";
4463                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4464                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4465                 for (i=0; si->si_retryinterval[i]; i++) {
4466                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4467                                 (long) si->si_retryinterval[i] );
4468                         space = " ";
4469                         if ( WHATSLEFT - 1 <= len ) return;
4470                         ptr += len;
4471                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4472                                 *ptr++ = '+';
4473                         else {
4474                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4475                                 if ( WHATSLEFT <= len ) return;
4476                                 ptr += len;
4477                         }
4478                 }
4479                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4480                 *ptr++ = '"';
4481         } else {
4482                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4483         }
4484
4485         if ( si->si_slimit ) {
4486                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4487                 if ( WHATSLEFT <= len ) return;
4488                 ptr += len;
4489         }
4490
4491         if ( si->si_tlimit ) {
4492                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4493                 if ( WHATSLEFT <= len ) return;
4494                 ptr += len;
4495         }
4496
4497         if ( si->si_syncdata ) {
4498                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4499                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4500                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4501                         ptr = lutil_strcopy( ptr, bc.bv_val );
4502                 }
4503         }
4504         bc.bv_len = ptr - buf;
4505         bc.bv_val = buf;
4506         ber_dupbv( bv, &bc );
4507 }
4508
4509 int
4510 syncrepl_config( ConfigArgs *c )
4511 {
4512         if (c->op == SLAP_CONFIG_EMIT) {
4513                 if ( c->be->be_syncinfo ) {
4514                         struct berval bv;
4515                         syncinfo_t *si;
4516
4517                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4518                                 syncrepl_unparse( si, &bv );
4519                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4520                         }
4521                         return 0;
4522                 }
4523                 return 1;
4524         } else if ( c->op == LDAP_MOD_DELETE ) {
4525                 cookie_state *cs = NULL;
4526                 if ( c->be->be_syncinfo ) {
4527                         syncinfo_t *si, **sip;
4528                         int i;
4529
4530                         cs = c->be->be_syncinfo->si_cookieState;
4531                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4532                                 si = *sip;
4533                                 if ( c->valx == -1 || i == c->valx ) {
4534                                         int isrunning = 0;
4535                                         *sip = si->si_next;
4536                                         /* If the task is currently active, we have to leave
4537                                          * it running. It will exit on its own. This will only
4538                                          * happen when running on the cn=config DB.
4539                                          */
4540                                         if ( si->si_re ) {
4541                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4542                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4543                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4544                                         }
4545                                         if ( si->si_re && isrunning ) {
4546                                                 si->si_ctype = 0;
4547                                         } else {
4548                                                 syncinfo_free( si, 0 );
4549                                         }
4550                                         if ( i == c->valx )
4551                                                 break;
4552                                 } else {
4553                                         sip = &si->si_next;
4554                                 }
4555                         }
4556                 }
4557                 if ( !c->be->be_syncinfo ) {
4558                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4559                         if ( cs ) {
4560                                 ber_bvarray_free( cs->cs_vals );
4561                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4562                                 ch_free( cs );
4563                         }
4564                 }
4565                 return 0;
4566         }
4567         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4568                 Debug(LDAP_DEBUG_ANY, "%s: "
4569                         "syncrepl: database already shadowed.\n",
4570                         c->log, 0, 0);
4571                 return(1);
4572         } else {
4573                 return add_syncrepl( c );
4574         }
4575 }