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 2003-2010 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 #ifdef ENABLE_REWRITE
  35 #include "rewrite.h"
  36 #define SUFFIXM_CTX     "<suffix massage>"
  37 #endif
  38
  39 struct nonpresent_entry {
  40         struct berval *npe_name;
  41         struct berval *npe_nname;
  42         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  43 };
  44
  45 typedef struct cookie_state {
  46         ldap_pvt_thread_mutex_t cs_mutex;
  47         int     cs_num;
  48         int cs_age;
  49         int cs_ref;
  50         struct berval *cs_vals;
  51         int *cs_sids;
  52
  53         /* pending changes, not yet committed */
  54         ldap_pvt_thread_mutex_t cs_pmutex;
  55         int     cs_pnum;
  56         struct berval *cs_pvals;
  57         int *cs_psids;
  58 } cookie_state;
  59
  60 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  61 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  62 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  63
  64 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  65 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  66
  67 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  68 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  69 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  70 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  71
  72 typedef struct syncinfo_s {
  73         struct syncinfo_s       *si_next;
  74         BackendDB               *si_be;
  75         BackendDB               *si_wbe;
  76         struct re_s             *si_re;
  77         int                     si_rid;
  78         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  79         slap_bindconf           si_bindconf;
  80         struct berval           si_base;
  81         struct berval           si_logbase;
  82         struct berval           si_filterstr;
  83         Filter                  *si_filter;
  84         struct berval           si_logfilterstr;
  85         struct berval           si_contextdn;
  86         int                     si_scope;
  87         int                     si_attrsonly;
  88         char                    *si_anfile;
  89         AttributeName           *si_anlist;
  90         AttributeName           *si_exanlist;
  91         char                    **si_attrs;
  92         char                    **si_exattrs;
  93         int                     si_allattrs;
  94         int                     si_allopattrs;
  95         int                     si_schemachecking;
  96         int                     si_type;        /* the active type */
  97         int                     si_ctype;       /* the configured type */
  98         time_t                  si_interval;
  99         time_t                  *si_retryinterval;
 100         int                     *si_retrynum_init;
 101         int                     *si_retrynum;
 102         struct sync_cookie      si_syncCookie;
 103         cookie_state            *si_cookieState;
 104         int                     si_cookieAge;
 105         int                     si_manageDSAit;
 106         int                     si_slimit;
 107         int                     si_tlimit;
 108         int                     si_refreshDelete;
 109         int                     si_refreshPresent;
 110         int                     si_refreshDone;
 111         int                     si_syncdata;
 112         int                     si_logstate;
 113         int                     si_got;
 114         ber_int_t       si_msgid;
 115         Avlnode                 *si_presentlist;
 116         LDAP                    *si_ld;
 117         Connection              *si_conn;
 118         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 119 #ifdef ENABLE_REWRITE
 120         struct rewrite_info *si_rewrite;
 121         struct berval   si_suffixm;
 122 #endif
 123         ldap_pvt_thread_mutex_t si_mutex;
 124 } syncinfo_t;
 125
 126 static int syncuuid_cmp( const void *, const void * );
 127 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 128 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 129 static int syncrepl_message_to_op(
 130                                         syncinfo_t *, Operation *, LDAPMessage * );
 131 static int syncrepl_message_to_entry(
 132                                         syncinfo_t *, Operation *, LDAPMessage *,
 133                                         Modifications **, Entry **, int );
 134 static int syncrepl_entry(
 135                                         syncinfo_t *, Operation*, Entry*,
 136                                         Modifications**,int, struct berval*,
 137                                         struct berval *cookieCSN );
 138 static int syncrepl_updateCookie(
 139                                         syncinfo_t *, Operation *,
 140                                         struct sync_cookie * );
 141 static struct berval * slap_uuidstr_from_normalized(
 142                                         struct berval *, struct berval *, void * );
 143 static int syncrepl_add_glue_ancestors(
 144         Operation* op, Entry *e );
 145
 146 /* callback functions */
 147 static int dn_callback( Operation *, SlapReply * );
 148 static int nonpresent_callback( Operation *, SlapReply * );
 149 static int null_callback( Operation *, SlapReply * );
 150
 151 static AttributeDescription *sync_descs[4];
 152
 153 static const char *
 154 syncrepl_state2str( int state )
 155 {
 156         switch ( state ) {
 157         case LDAP_SYNC_PRESENT:
 158                 return "PRESENT";
 159
 160         case LDAP_SYNC_ADD:
 161                 return "ADD";
 162
 163         case LDAP_SYNC_MODIFY:
 164                 return "MODIFY";
 165
 166         case LDAP_SYNC_DELETE:
 167                 return "DELETE";
 168         }
 169
 170         return "UNKNOWN";
 171 }
 172
 173 static void
 174 init_syncrepl(syncinfo_t *si)
 175 {
 176         int i, j, k, l, n;
 177         char **attrs, **exattrs;
 178
 179         if ( !sync_descs[0] ) {
 180                 sync_descs[0] = slap_schema.si_ad_objectClass;
 181                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 182                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 183                 sync_descs[3] = NULL;
 184         }
 185
 186         if ( si->si_allattrs && si->si_allopattrs )
 187                 attrs = NULL;
 188         else
 189                 attrs = anlist2attrs( si->si_anlist );
 190
 191         if ( attrs ) {
 192                 if ( si->si_allattrs ) {
 193                         i = 0;
 194                         while ( attrs[i] ) {
 195                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 196                                         for ( j = i; attrs[j] != NULL; j++ ) {
 197                                                 if ( j == i )
 198                                                         ch_free( attrs[i] );
 199                                                 attrs[j] = attrs[j+1];
 200                                         }
 201                                 } else {
 202                                         i++;
 203                                 }
 204                         }
 205                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 206                         attrs[i] = ch_strdup("*");
 207                         attrs[i + 1] = NULL;
 208
 209                 } else if ( si->si_allopattrs ) {
 210                         i = 0;
 211                         while ( attrs[i] ) {
 212                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 213                                         for ( j = i; attrs[j] != NULL; j++ ) {
 214                                                 if ( j == i )
 215                                                         ch_free( attrs[i] );
 216                                                 attrs[j] = attrs[j+1];
 217                                         }
 218                                 } else {
 219                                         i++;
 220                                 }
 221                         }
 222                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 223                         attrs[i] = ch_strdup("+");
 224                         attrs[i + 1] = NULL;
 225                 }
 226
 227                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 228                         j = 0;
 229                         while ( attrs[j] ) {
 230                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 231                                         for ( k = j; attrs[k] != NULL; k++ ) {
 232                                                 if ( k == j )
 233                                                         ch_free( attrs[k] );
 234                                                 attrs[k] = attrs[k+1];
 235                                         }
 236                                 } else {
 237                                         j++;
 238                                 }
 239                         }
 240                 }
 241
 242                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 243
 244                 if ( si->si_allopattrs ) {
 245                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 246                 } else {
 247                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 248                 }
 249
 250                 /* Add Attributes */
 251                 if ( si->si_allopattrs ) {
 252                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 253                 } else {
 254                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 255                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 256                         }
 257                 }
 258                 attrs[ n ] = NULL;
 259
 260         } else {
 261
 262                 i = 0;
 263                 if ( si->si_allattrs == si->si_allopattrs ) {
 264                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 265                         attrs[i++] = ch_strdup( "*" );
 266                         attrs[i++] = ch_strdup( "+" );
 267                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 268                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 269                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 270                         attrs[i++] = ch_strdup( "*" );
 271                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 272                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 273                         }
 274                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 275                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 276                         attrs[i++] = ch_strdup( "+" );
 277                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 278                 }
 279                 attrs[i] = NULL;
 280         }
 281
 282         si->si_attrs = attrs;
 283
 284         exattrs = anlist2attrs( si->si_exanlist );
 285
 286         if ( exattrs ) {
 287                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 288
 289                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 290                         j = 0;
 291                         while ( exattrs[j] != NULL ) {
 292                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 293                                         ch_free( exattrs[j] );
 294                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 295                                                 exattrs[k] = exattrs[k+1];
 296                                         }
 297                                 } else {
 298                                         j++;
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 304                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 305                                 ObjectClass     *oc;
 306                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 307                                         k = 0;
 308                                         while ( oc->soc_required[k] ) {
 309                                                 if ( !strcmp( exattrs[i],
 310                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 311                                                         ch_free( exattrs[i] );
 312                                                         for ( l = i; exattrs[l]; l++ ) {
 313                                                                 exattrs[l] = exattrs[l+1];
 314                                                         }
 315                                                 } else {
 316                                                         k++;
 317                                                 }
 318                                         }
 319                                 }
 320                         }
 321                 }
 322
 323                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 324
 325                 if ( i != n )
 326                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 327         }
 328
 329         si->si_exattrs = exattrs;
 330 }
 331
 332 typedef struct logschema {
 333         struct berval ls_dn;
 334         struct berval ls_req;
 335         struct berval ls_mod;
 336         struct berval ls_newRdn;
 337         struct berval ls_delRdn;
 338         struct berval ls_newSup;
 339 } logschema;
 340
 341 static logschema changelog_sc = {
 342         BER_BVC("targetDN"),
 343         BER_BVC("changeType"),
 344         BER_BVC("changes"),
 345         BER_BVC("newRDN"),
 346         BER_BVC("deleteOldRDN"),
 347         BER_BVC("newSuperior")
 348 };
 349
 350 static logschema accesslog_sc = {
 351         BER_BVC("reqDN"),
 352         BER_BVC("reqType"),
 353         BER_BVC("reqMod"),
 354         BER_BVC("reqNewRDN"),
 355         BER_BVC("reqDeleteOldRDN"),
 356         BER_BVC("reqNewSuperior")
 357 };
 358
 359 static int
 360 ldap_sync_search(
 361         syncinfo_t *si,
 362         void *ctx )
 363 {
 364         BerElementBuffer berbuf;
 365         BerElement *ber = (BerElement *)&berbuf;
 366         LDAPControl c[3], *ctrls[4];
 367         int rc;
 368         int rhint;
 369         char *base;
 370         char **attrs, *lattrs[8];
 371         char *filter;
 372         int attrsonly;
 373         int scope;
 374
 375         /* setup LDAP SYNC control */
 376         ber_init2( ber, NULL, LBER_USE_DER );
 377         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 378
 379         /* If we're using a log but we have no state, then fallback to
 380          * normal mode for a full refresh.
 381          */
 382         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 383                 si->si_logstate = SYNCLOG_FALLBACK;
 384         }
 385
 386         /* Use the log parameters if we're in log mode */
 387         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 388                 logschema *ls;
 389                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 390                         ls = &accesslog_sc;
 391                 else
 392                         ls = &changelog_sc;
 393                 lattrs[0] = ls->ls_dn.bv_val;
 394                 lattrs[1] = ls->ls_req.bv_val;
 395                 lattrs[2] = ls->ls_mod.bv_val;
 396                 lattrs[3] = ls->ls_newRdn.bv_val;
 397                 lattrs[4] = ls->ls_delRdn.bv_val;
 398                 lattrs[5] = ls->ls_newSup.bv_val;
 399                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 400                 lattrs[7] = NULL;
 401
 402                 rhint = 0;
 403                 base = si->si_logbase.bv_val;
 404                 filter = si->si_logfilterstr.bv_val;
 405                 attrs = lattrs;
 406                 attrsonly = 0;
 407                 scope = LDAP_SCOPE_SUBTREE;
 408         } else {
 409                 rhint = 1;
 410                 base = si->si_base.bv_val;
 411                 filter = si->si_filterstr.bv_val;
 412                 attrs = si->si_attrs;
 413                 attrsonly = si->si_attrsonly;
 414                 scope = si->si_scope;
 415         }
 416         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 417                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 418         } else {
 419                 si->si_type = si->si_ctype;
 420         }
 421
 422         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 423         {
 424                 ber_printf( ber, "{eOb}",
 425                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 426         } else {
 427                 ber_printf( ber, "{eb}",
 428                         abs(si->si_type), rhint );
 429         }
 430
 431         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 432                 ber_free_buf( ber );
 433                 return rc;
 434         }
 435
 436         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 437         c[0].ldctl_iscritical = si->si_type < 0;
 438         ctrls[0] = &c[0];
 439
 440         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 441         BER_BVZERO( &c[1].ldctl_value );
 442         c[1].ldctl_iscritical = 1;
 443         ctrls[1] = &c[1];
 444
 445         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 446                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 447                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 448                 c[2].ldctl_iscritical = 1;
 449                 ctrls[2] = &c[2];
 450                 ctrls[3] = NULL;
 451         } else {
 452                 ctrls[2] = NULL;
 453         }
 454
 455         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 456                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 457         ber_free_buf( ber );
 458         return rc;
 459 }
 460
 461 static int
 462 check_syncprov(
 463         Operation *op,
 464         syncinfo_t *si )
 465 {
 466         AttributeName at[2];
 467         Attribute a = {0};
 468         Entry e = {0};
 469         SlapReply rs = {0};
 470         int i, j, changed = 0;
 471
 472         /* Look for contextCSN from syncprov overlay. If
 473          * there's no overlay, this will be a no-op. That means
 474          * this is a pure consumer, so local changes will not be
 475          * allowed, and all changes will already be reflected in
 476          * the cookieState.
 477          */
 478         a.a_desc = slap_schema.si_ad_contextCSN;
 479         e.e_attrs = &a;
 480         e.e_name = si->si_contextdn;
 481         e.e_nname = si->si_contextdn;
 482         at[0].an_name = a.a_desc->ad_cname;
 483         at[0].an_desc = a.a_desc;
 484         BER_BVZERO( &at[1].an_name );
 485         rs.sr_entry = &e;
 486         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 487         rs.sr_attrs = at;
 488         op->o_req_dn = e.e_name;
 489         op->o_req_ndn = e.e_nname;
 490
 491         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 492         i = backend_operational( op, &rs );
 493         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 494                 int num = a.a_numvals;
 495                 /* check for differences */
 496                 if ( num != si->si_cookieState->cs_num ) {
 497                         changed = 1;
 498                 } else {
 499                         for ( i=0; i<num; i++ ) {
 500                                 if ( ber_bvcmp( &a.a_nvals[i],
 501                                         &si->si_cookieState->cs_vals[i] )) {
 502                                         changed = 1;
 503                                         break;
 504                                 }
 505                         }
 506                 }
 507                 if ( changed ) {
 508                         ber_bvarray_free( si->si_cookieState->cs_vals );
 509                         ch_free( si->si_cookieState->cs_sids );
 510                         si->si_cookieState->cs_num = num;
 511                         si->si_cookieState->cs_vals = a.a_nvals;
 512                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 513                                 num, NULL );
 514                         si->si_cookieState->cs_age++;
 515                 } else {
 516                         ber_bvarray_free( a.a_nvals );
 517                 }
 518                 ber_bvarray_free( a.a_vals );
 519         }
 520         /* See if the cookieState has changed due to anything outside
 521          * this particular consumer. That includes other consumers in
 522          * the same context, or local changes detected above.
 523          */
 524         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 525                 si->si_cookieState->cs_age ) {
 526                 if ( !si->si_syncCookie.numcsns ) {
 527                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 528                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 529                                 si->si_cookieState->cs_vals, NULL );
 530                         changed = 1;
 531                 } else {
 532                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 533                                 /* bogus, just dup everything */
 534                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 535                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 536                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 537                                                 si->si_cookieState->cs_vals, NULL );
 538                                         changed = 1;
 539                                         break;
 540                                 }
 541                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 542                                         if ( si->si_syncCookie.sids[i] !=
 543                                                 si->si_cookieState->cs_sids[j] )
 544                                                 continue;
 545                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 546                                                 &si->si_cookieState->cs_vals[j] ))
 547                                                 break;
 548                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 549                                                 &si->si_cookieState->cs_vals[j] );
 550                                         changed = 1;
 551                                         break;
 552                                 }
 553                         }
 554                 }
 555         }
 556         if ( changed ) {
 557                 si->si_cookieAge = si->si_cookieState->cs_age;
 558                 ch_free( si->si_syncCookie.octet_str.bv_val );
 559                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 560                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 561                         si->si_syncCookie.sid );
 562         }
 563         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 564         return changed;
 565 }
 566
 567 static int
 568 do_syncrep1(
 569         Operation *op,
 570         syncinfo_t *si )
 571 {
 572         int     rc;
 573         int cmdline_cookie_found = 0;
 574
 575         struct sync_cookie      *sc = NULL;
 576 #ifdef HAVE_TLS
 577         void    *ssl;
 578 #endif
 579
 580         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 581         if ( rc != LDAP_SUCCESS ) {
 582                 goto done;
 583         }
 584         op->o_protocol = LDAP_VERSION3;
 585
 586         /* Set SSF to strongest of TLS, SASL SSFs */
 587         op->o_sasl_ssf = 0;
 588         op->o_tls_ssf = 0;
 589         op->o_transport_ssf = 0;
 590 #ifdef HAVE_TLS
 591         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 592                 == LDAP_SUCCESS && ssl != NULL )
 593         {
 594                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 595         }
 596 #endif /* HAVE_TLS */
 597         {
 598                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 599                                                   to use sasl_ssf_t but currently uses ber_len_t */
 600                 if ( ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf )
 601                         == LDAP_SUCCESS )
 602                         op->o_sasl_ssf = ssf;
 603         }
 604         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 605                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 606
 607         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 608
 609         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 610         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 611
 612         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 613
 614         si->si_syncCookie.rid = si->si_rid;
 615
 616         /* whenever there are multiple data sources possible, advertise sid */
 617         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 618                 slap_serverID : -1;
 619
 620         /* We've just started up, or the remote server hasn't sent us
 621          * any meaningful state.
 622          */
 623         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 624                 int i;
 625
 626                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 627                         if ( si->si_rid == sc->rid ) {
 628                                 cmdline_cookie_found = 1;
 629                                 break;
 630                         }
 631                 }
 632
 633                 if ( cmdline_cookie_found ) {
 634                         /* cookie is supplied in the command line */
 635
 636                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 637
 638                         /* ctxcsn wasn't parsed yet, do it now */
 639                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 640                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 641                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 642                         slap_sync_cookie_free( sc, 1 );
 643                 } else {
 644                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 645                         if ( !si->si_cookieState->cs_num ) {
 646                                 /* get contextCSN shadow replica from database */
 647                                 BerVarray csn = NULL;
 648                                 void *ctx = op->o_tmpmemctx;
 649
 650                                 op->o_req_ndn = si->si_contextdn;
 651                                 op->o_req_dn = op->o_req_ndn;
 652
 653                                 /* try to read stored contextCSN */
 654                                 op->o_tmpmemctx = NULL;
 655                                 backend_attribute( op, NULL, &op->o_req_ndn,
 656                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 657                                 op->o_tmpmemctx = ctx;
 658                                 if ( csn ) {
 659                                         si->si_cookieState->cs_vals = csn;
 660                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 661                                         si->si_cookieState->cs_num = i;
 662                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 663                                 }
 664                         }
 665                         if ( si->si_cookieState->cs_num ) {
 666                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 667                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 668                                         si->si_cookieState->cs_vals, NULL )) {
 669                                         rc = LDAP_NO_MEMORY;
 670                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 671                                         goto done;
 672                                 }
 673                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 674                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 675                                         sizeof(int) );
 676                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 677                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 678                         }
 679                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 680                 }
 681
 682                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 683                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 684                         si->si_syncCookie.sid );
 685         } else {
 686                 /* ITS#6367: recreate the cookie so it has our SID, not our peer's */
 687                 ch_free( si->si_syncCookie.octet_str.bv_val );
 688                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 689                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 690                         si->si_syncCookie.sid );
 691                 /* Look for contextCSN from syncprov overlay. */
 692                 check_syncprov( op, si );
 693         }
 694
 695         si->si_refreshDone = 0;
 696
 697         rc = ldap_sync_search( si, op->o_tmpmemctx );
 698
 699         if( rc != LDAP_SUCCESS ) {
 700                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 701                         "ldap_search_ext: %s (%d)\n",
 702                         si->si_ridtxt, ldap_err2string( rc ), rc );
 703         }
 704
 705 done:
 706         if ( rc ) {
 707                 if ( si->si_ld ) {
 708                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 709                         si->si_ld = NULL;
 710                 }
 711         }
 712
 713         return rc;
 714 }
 715
 716 static int
 717 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 718 {
 719         int i, j, match = 0;
 720         const char *text;
 721
 722         *which = 0;
 723
 724         if ( sc1->numcsns < sc2->numcsns ) {
 725                 *which = sc1->numcsns;
 726                 return -1;
 727         }
 728
 729         for (j=0; j<sc2->numcsns; j++) {
 730                 for (i=0; i<sc1->numcsns; i++) {
 731                         if ( sc1->sids[i] != sc2->sids[j] )
 732                                 continue;
 733                         value_match( &match, slap_schema.si_ad_entryCSN,
 734                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 735                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 736                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 737                         if ( match < 0 ) {
 738                                 *which = j;
 739                                 return match;
 740                         }
 741                         break;
 742                 }
 743                 if ( i == sc1->numcsns ) {
 744                         /* sc2 has a sid sc1 lacks */
 745                         *which = j;
 746                         return -1;
 747                 }
 748         }
 749         return match;
 750 }
 751
 752 #define SYNC_PAUSED     -3
 753
 754 static int
 755 do_syncrep2(
 756         Operation *op,
 757         syncinfo_t *si )
 758 {
 759         LDAPControl     **rctrls = NULL;
 760
 761         BerElementBuffer berbuf;
 762         BerElement      *ber = (BerElement *)&berbuf;
 763
 764         LDAPMessage     *msg = NULL;
 765
 766         char            *retoid = NULL;
 767         struct berval   *retdata = NULL;
 768
 769         Entry           *entry = NULL;
 770
 771         int             syncstate;
 772         struct berval   syncUUID = BER_BVNULL;
 773         struct sync_cookie      syncCookie = { NULL };
 774         struct sync_cookie      syncCookie_req = { NULL };
 775         struct berval           cookie = BER_BVNULL;
 776
 777         int             rc,
 778                         err = LDAP_SUCCESS;
 779         ber_len_t       len;
 780
 781         Modifications   *modlist = NULL;
 782
 783         int                             match, m, punlock = -1;
 784
 785         struct timeval *tout_p = NULL;
 786         struct timeval tout = { 0, 0 };
 787
 788         int             refreshDeletes = 0;
 789         BerVarray syncUUIDs = NULL;
 790         ber_tag_t si_tag;
 791
 792         if ( slapd_shutdown ) {
 793                 rc = -2;
 794                 goto done;
 795         }
 796
 797         ber_init2( ber, NULL, LBER_USE_DER );
 798         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 799
 800         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 801
 802         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 803
 804         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 805                 tout_p = &tout;
 806         } else {
 807                 tout_p = NULL;
 808         }
 809
 810         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 811                 tout_p, &msg ) ) > 0 )
 812         {
 813                 LDAPControl     *rctrlp = NULL;
 814
 815                 if ( slapd_shutdown ) {
 816                         rc = -2;
 817                         goto done;
 818                 }
 819                 switch( ldap_msgtype( msg ) ) {
 820                 case LDAP_RES_SEARCH_ENTRY:
 821                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 822                         /* we can't work without the control */
 823                         if ( rctrls ) {
 824                                 LDAPControl **next = NULL;
 825                                 /* NOTE: make sure we use the right one;
 826                                  * a better approach would be to run thru
 827                                  * the whole list and take care of all */
 828                                 /* NOTE: since we issue the search request,
 829                                  * we should know what controls to expect,
 830                                  * and there should be none apart from the
 831                                  * sync-related control */
 832                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 833                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 834                                 {
 835                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 836                                                 "got search entry with multiple "
 837                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 838                                         ldap_controls_free( rctrls );
 839                                         rc = -1;
 840                                         goto done;
 841                                 }
 842                         }
 843                         if ( rctrlp == NULL ) {
 844                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 845                                         "got search entry without "
 846                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 847                                 rc = -1;
 848                                 goto done;
 849                         }
 850                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 851                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 852                         /* FIXME: what if syncUUID is NULL or empty?
 853                          * (happens with back-sql...) */
 854                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 855                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 856                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 857                                         si->si_ridtxt,
 858                                         syncrepl_state2str( syncstate ), 0 );
 859                                 ldap_controls_free( rctrls );
 860                                 rc = -1;
 861                                 goto done;
 862                         }
 863                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 864                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 865
 866                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
 867                                         si->si_ridtxt,
 868                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
 869
 870                                 if ( !BER_BVISNULL( &cookie ) ) {
 871                                         ch_free( syncCookie.octet_str.bv_val );
 872                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 873                                 }
 874                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 875                                 {
 876                                         slap_parse_sync_cookie( &syncCookie, NULL );
 877                                         if ( syncCookie.ctxcsn ) {
 878                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 879                                                 check_syncprov( op, si );
 880                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 881                                                         if ( si->si_cookieState->cs_sids[i] == sid ) {
 882                                                                 if ( ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 883                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 884                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 885                                                                         ldap_controls_free( rctrls );
 886                                                                         rc = 0;
 887                                                                         goto done;
 888                                                                 }
 889                                                                 break;
 890                                                         }
 891                                                 }
 892                                                 /* check pending CSNs too */
 893                                                 while ( ldap_pvt_thread_mutex_trylock( &si->si_cookieState->cs_pmutex )) {
 894                                                         if ( slapd_shutdown ) {
 895                                                                 rc = -2;
 896                                                                 goto done;
 897                                                         }
 898                                                         if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
 899                                                                 ldap_pvt_thread_yield();
 900                                                 }
 901                                                 for ( i =0; i<si->si_cookieState->cs_pnum; i++ ) {
 902                                                         if ( si->si_cookieState->cs_psids[i] == sid ) {
 903                                                                 if ( ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_pvals[i] ) <= 0 ) {
 904                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN pending, ignoring %s\n",
 905                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 906                                                                         ldap_controls_free( rctrls );
 907                                                                         rc = 0;
 908                                                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_pmutex );
 909                                                                         goto done;
 910                                                                 }
 911                                                                 ber_bvreplace( &si->si_cookieState->cs_pvals[i],
 912                                                                         syncCookie.ctxcsn );
 913                                                                 break;
 914                                                         }
 915                                                 }
 916                                                 /* new SID, add it */
 917                                                 if ( i == si->si_cookieState->cs_pnum ) {
 918                                                         value_add( &si->si_cookieState->cs_pvals, syncCookie.ctxcsn );
 919                                                         si->si_cookieState->cs_pnum++;
 920                                                         si->si_cookieState->cs_psids = ch_realloc( si->si_cookieState->cs_psids, si->si_cookieState->cs_pnum * sizeof(int));
 921                                                         si->si_cookieState->cs_psids[i] = sid;
 922                                                 }
 923                                                 punlock = i;
 924                                         }
 925                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
 926                                 }
 927                         }
 928                         rc = 0;
 929                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 930                                 modlist = NULL;
 931                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 932                                         syncCookie.ctxcsn )
 933                                 {
 934                                         rc = syncrepl_updateCookie( si, op, &syncCookie );
 935                                 } else switch ( rc ) {
 936                                         case LDAP_ALREADY_EXISTS:
 937                                         case LDAP_NO_SUCH_OBJECT:
 938                                         case LDAP_NO_SUCH_ATTRIBUTE:
 939                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 940                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 941                                                 si->si_logstate = SYNCLOG_FALLBACK;
 942                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 943                                                 break;
 944                                         default:
 945                                                 break;
 946                                 }
 947                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 948                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 949                         {
 950                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 951                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 952                                         syncCookie.ctxcsn )
 953                                 {
 954                                         rc = syncrepl_updateCookie( si, op, &syncCookie );
 955                                 }
 956                         }
 957                         if ( punlock >= 0 ) {
 958                                 /* on failure, revert pending CSN */
 959                                 if ( rc != LDAP_SUCCESS ) {
 960                                         int i;
 961                                         for ( i = 0; i<si->si_cookieState->cs_num; i++ ) {
 962                                                 if ( si->si_cookieState->cs_sids[i] == si->si_cookieState->cs_psids[punlock] ) {
 963                                                         ber_bvreplace( &si->si_cookieState->cs_pvals[punlock],
 964                                                                 &si->si_cookieState->cs_vals[i] );
 965                                                         break;
 966                                                 }
 967                                         }
 968                                         if ( i == si->si_cookieState->cs_num )
 969                                                 si->si_cookieState->cs_pvals[punlock].bv_val[0] = '\0';
 970                                 }
 971                                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_pmutex );
 972                         }
 973                         ldap_controls_free( rctrls );
 974                         if ( modlist ) {
 975                                 slap_mods_free( modlist, 1 );
 976                         }
 977                         if ( rc )
 978                                 goto done;
 979                         break;
 980
 981                 case LDAP_RES_SEARCH_REFERENCE:
 982                         Debug( LDAP_DEBUG_ANY,
 983                                 "do_syncrep2: %s reference received error\n",
 984                                 si->si_ridtxt, 0, 0 );
 985                         break;
 986
 987                 case LDAP_RES_SEARCH_RESULT:
 988                         Debug( LDAP_DEBUG_SYNC,
 989                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 990                                 si->si_ridtxt, 0, 0 );
 991                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 992                                 &rctrls, 0 );
 993 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 994                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 995                                 /* map old result code to registered code */
 996                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 997                         }
 998 #endif
 999                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
1000                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
1001                                         si->si_logstate = SYNCLOG_FALLBACK;
1002                                 }
1003                                 rc = err;
1004                                 goto done;
1005                         }
1006                         if ( err ) {
1007                                 Debug( LDAP_DEBUG_ANY,
1008                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
1009                                         si->si_ridtxt, err, ldap_err2string( err ) );
1010                         }
1011                         if ( rctrls ) {
1012                                 LDAPControl **next = NULL;
1013                                 /* NOTE: make sure we use the right one;
1014                                  * a better approach would be to run thru
1015                                  * the whole list and take care of all */
1016                                 /* NOTE: since we issue the search request,
1017                                  * we should know what controls to expect,
1018                                  * and there should be none apart from the
1019                                  * sync-related control */
1020                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
1021                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
1022                                 {
1023                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1024                                                 "got search result with multiple "
1025                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
1026                                         ldap_controls_free( rctrls );
1027                                         rc = -1;
1028                                         goto done;
1029                                 }
1030                         }
1031                         if ( rctrlp ) {
1032                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
1033
1034                                 ber_scanf( ber, "{" /*"}"*/);
1035                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
1036                                         ber_scanf( ber, "m", &cookie );
1037
1038                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1039                                                 si->si_ridtxt,
1040                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1041
1042                                         if ( !BER_BVISNULL( &cookie ) ) {
1043                                                 ch_free( syncCookie.octet_str.bv_val );
1044                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
1045                                         }
1046                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1047                                         {
1048                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1049                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1050                                         }
1051                                 }
1052                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
1053                                 {
1054                                         ber_scanf( ber, "b", &refreshDeletes );
1055                                 }
1056                                 ber_scanf( ber, /*"{"*/ "}" );
1057                         }
1058                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1059                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1060                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1061                         }
1062                         if ( !syncCookie.ctxcsn ) {
1063                                 match = 1;
1064                         } else if ( !syncCookie_req.ctxcsn ) {
1065                                 match = -1;
1066                                 m = 0;
1067                         } else {
1068                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1069                         }
1070                         if ( rctrls ) {
1071                                 ldap_controls_free( rctrls );
1072                         }
1073                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
1074                                 /* FIXME : different error behaviors according to
1075                                  *      1) err code : LDAP_BUSY ...
1076                                  *      2) on err policy : stop service, stop sync, retry
1077                                  */
1078                                 if ( refreshDeletes == 0 && match < 0 &&
1079                                         err == LDAP_SUCCESS &&
1080                                         syncCookie_req.numcsns == syncCookie.numcsns )
1081                                 {
1082                                         syncrepl_del_nonpresent( op, si, NULL,
1083                                                 &syncCookie, m );
1084                                 } else {
1085                                         avl_free( si->si_presentlist, ch_free );
1086                                         si->si_presentlist = NULL;
1087                                 }
1088                         }
1089                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1090                         {
1091                                 rc = syncrepl_updateCookie( si, op, &syncCookie );
1092                         }
1093                         if ( err == LDAP_SUCCESS
1094                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1095                                 si->si_logstate = SYNCLOG_LOGGING;
1096                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1097                         } else {
1098                                 rc = -2;
1099                         }
1100                         goto done;
1101                         break;
1102
1103                 case LDAP_RES_INTERMEDIATE:
1104                         rc = ldap_parse_intermediate( si->si_ld, msg,
1105                                 &retoid, &retdata, NULL, 0 );
1106                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1107                                 ber_init2( ber, retdata, LBER_USE_DER );
1108
1109                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1110                                 ber_tag_t tag;
1111                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1112                                         Debug( LDAP_DEBUG_SYNC,
1113                                                 "do_syncrep2: %s %s - %s\n",
1114                                                 si->si_ridtxt,
1115                                                 "LDAP_RES_INTERMEDIATE",
1116                                                 "NEW_COOKIE" );
1117                                         ber_scanf( ber, "tm", &tag, &cookie );
1118                                         Debug( LDAP_DEBUG_SYNC,
1119                                                 "do_syncrep2: %s NEW_COOKIE: %s\n",
1120                                                 si->si_ridtxt,
1121                                                 cookie.bv_val, 0);
1122                                         if ( !BER_BVISNULL( &cookie ) ) {
1123                                                 ch_free( syncCookie.octet_str.bv_val );
1124                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1125                                         }
1126                                         if (!BER_BVISNULL( &syncCookie.octet_str ) ) {
1127                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1128                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1129                                         }
1130                                         break;
1131                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1132                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1133                                         Debug( LDAP_DEBUG_SYNC,
1134                                                 "do_syncrep2: %s %s - %s\n",
1135                                                 si->si_ridtxt,
1136                                                 "LDAP_RES_INTERMEDIATE",
1137                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1138                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1139                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1140                                                 si->si_refreshDelete = 1;
1141                                         } else {
1142                                                 si->si_refreshPresent = 1;
1143                                         }
1144                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1145                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1146                                         {
1147                                                 ber_scanf( ber, "m", &cookie );
1148
1149                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1150                                                         si->si_ridtxt,
1151                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1152
1153                                                 if ( !BER_BVISNULL( &cookie ) ) {
1154                                                         ch_free( syncCookie.octet_str.bv_val );
1155                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1156                                                 }
1157                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1158                                                 {
1159                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1160                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1161                                                 }
1162                                         }
1163                                         /* Defaults to TRUE */
1164                                         if ( ber_peek_tag( ber, &len ) ==
1165                                                 LDAP_TAG_REFRESHDONE )
1166                                         {
1167                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1168                                         } else
1169                                         {
1170                                                 si->si_refreshDone = 1;
1171                                         }
1172                                         ber_scanf( ber, /*"{"*/ "}" );
1173                                         break;
1174                                 case LDAP_TAG_SYNC_ID_SET:
1175                                         Debug( LDAP_DEBUG_SYNC,
1176                                                 "do_syncrep2: %s %s - %s\n",
1177                                                 si->si_ridtxt,
1178                                                 "LDAP_RES_INTERMEDIATE",
1179                                                 "SYNC_ID_SET" );
1180                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1181                                         if ( ber_peek_tag( ber, &len ) ==
1182                                                 LDAP_TAG_SYNC_COOKIE )
1183                                         {
1184                                                 ber_scanf( ber, "m", &cookie );
1185
1186                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1187                                                         si->si_ridtxt,
1188                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1189
1190                                                 if ( !BER_BVISNULL( &cookie ) ) {
1191                                                         ch_free( syncCookie.octet_str.bv_val );
1192                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1193                                                 }
1194                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1195                                                 {
1196                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1197                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1198                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1199                                                 }
1200                                         }
1201                                         if ( ber_peek_tag( ber, &len ) ==
1202                                                 LDAP_TAG_REFRESHDELETES )
1203                                         {
1204                                                 ber_scanf( ber, "b", &refreshDeletes );
1205                                         }
1206                                         ber_scanf( ber, "[W]", &syncUUIDs );
1207                                         ber_scanf( ber, /*"{"*/ "}" );
1208                                         if ( refreshDeletes ) {
1209                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1210                                                         &syncCookie, m );
1211                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1212                                         } else {
1213                                                 int i;
1214                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1215                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1216                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1217                                                 }
1218                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1219                                         }
1220                                         slap_sync_cookie_free( &syncCookie, 0 );
1221                                         break;
1222                                 default:
1223                                         Debug( LDAP_DEBUG_ANY,
1224                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1225                                                 si->si_ridtxt, (long) si_tag, 0 );
1226                                         ldap_memfree( retoid );
1227                                         ber_bvfree( retdata );
1228                                         continue;
1229                                 }
1230
1231                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1232                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1233                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1234                                 }
1235                                 if ( !syncCookie.ctxcsn ) {
1236                                         match = 1;
1237                                 } else if ( !syncCookie_req.ctxcsn ) {
1238                                         match = -1;
1239                                         m = 0;
1240                                 } else {
1241                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1242                                 }
1243
1244                                 if ( match < 0 ) {
1245                                         if ( si->si_refreshPresent == 1 &&
1246                                                 si_tag != LDAP_TAG_SYNC_NEW_COOKIE &&
1247                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1248                                                 syncrepl_del_nonpresent( op, si, NULL,
1249                                                         &syncCookie, m );
1250                                         }
1251
1252                                         if ( syncCookie.ctxcsn )
1253                                         {
1254                                                 rc = syncrepl_updateCookie( si, op, &syncCookie);
1255                                         }
1256                                 }
1257
1258                                 ldap_memfree( retoid );
1259                                 ber_bvfree( retdata );
1260                                 break;
1261
1262                         } else {
1263                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1264                                         "unknown intermediate response (%d)\n",
1265                                         si->si_ridtxt, rc, 0 );
1266                                 ldap_memfree( retoid );
1267                                 ber_bvfree( retdata );
1268                                 break;
1269                         }
1270                         break;
1271
1272                 default:
1273                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1274                                 "unknown message (0x%02lx)\n",
1275                                 si->si_ridtxt,
1276                                 (unsigned long)ldap_msgtype( msg ), 0 );
1277                         break;
1278
1279                 }
1280                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1281                         slap_sync_cookie_free( &syncCookie_req, 0 );
1282                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1283                         slap_sync_cookie_free( &syncCookie, 0 );
1284                 }
1285                 ldap_msgfree( msg );
1286                 msg = NULL;
1287                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1288                         slap_sync_cookie_free( &syncCookie, 0 );
1289                         slap_sync_cookie_free( &syncCookie_req, 0 );
1290                         return SYNC_PAUSED;
1291                 }
1292         }
1293
1294         if ( rc == -1 ) {
1295                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1296                 err = rc;
1297         }
1298
1299 done:
1300         if ( err != LDAP_SUCCESS ) {
1301                 Debug( LDAP_DEBUG_ANY,
1302                         "do_syncrep2: %s (%d) %s\n",
1303                         si->si_ridtxt, err, ldap_err2string( err ) );
1304         }
1305
1306         slap_sync_cookie_free( &syncCookie, 0 );
1307         slap_sync_cookie_free( &syncCookie_req, 0 );
1308
1309         if ( msg ) ldap_msgfree( msg );
1310
1311         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1312                 if ( si->si_conn ) {
1313                         connection_client_stop( si->si_conn );
1314                         si->si_conn = NULL;
1315                 }
1316                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1317                 si->si_ld = NULL;
1318         }
1319
1320         return rc;
1321 }
1322
1323 static void *
1324 do_syncrepl(
1325         void    *ctx,
1326         void    *arg )
1327 {
1328         struct re_s* rtask = arg;
1329         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1330         Connection conn = {0};
1331         OperationBuffer opbuf;
1332         Operation *op;
1333         int rc = LDAP_SUCCESS;
1334         int dostop = 0;
1335         ber_socket_t s;
1336         int i, defer = 1, fail = 0, freeinfo = 0;
1337         Backend *be;
1338
1339         if ( si == NULL )
1340                 return NULL;
1341         if ( slapd_shutdown )
1342                 return NULL;
1343
1344         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1345
1346         /* Don't get stuck here while a pause is initiated */
1347         while ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
1348                 if ( slapd_shutdown )
1349                         return NULL;
1350                 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1351                         ldap_pvt_thread_yield();
1352         }
1353
1354         if ( si->si_ctype < 1 ) {
1355                 goto deleted;
1356         }
1357
1358         switch( abs( si->si_type ) ) {
1359         case LDAP_SYNC_REFRESH_ONLY:
1360         case LDAP_SYNC_REFRESH_AND_PERSIST:
1361                 break;
1362         default:
1363                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1364                 return NULL;
1365         }
1366
1367         if ( slapd_shutdown ) {
1368                 if ( si->si_ld ) {
1369                         if ( si->si_conn ) {
1370                                 connection_client_stop( si->si_conn );
1371                                 si->si_conn = NULL;
1372                         }
1373                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1374                         si->si_ld = NULL;
1375                 }
1376                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1377                 return NULL;
1378         }
1379
1380         connection_fake_init( &conn, &opbuf, ctx );
1381         op = &opbuf.ob_op;
1382         /* o_connids must be unique for slap_graduate_commit_csn */
1383         op->o_connid = SLAPD_SYNC_RID2SYNCCONN(si->si_rid);
1384
1385         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1386         be = si->si_be;
1387
1388         /* Coordinate contextCSN updates with any syncprov overlays
1389          * in use. This may be complicated by the use of the glue
1390          * overlay.
1391          *
1392          * Typically there is a single syncprov mastering the entire
1393          * glued tree. In that case, our contextCSN updates should
1394          * go to the master DB. But if there is no syncprov on the
1395          * master DB, then nothing special is needed here.
1396          *
1397          * Alternatively, there may be individual syncprov overlays
1398          * on each glued branch. In that case, each syncprov only
1399          * knows about changes within its own branch. And so our
1400          * contextCSN updates should only go to the local DB.
1401          */
1402         if ( !si->si_wbe ) {
1403                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1404                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1405                         if ( overlay_is_inst( top_be, "syncprov" ))
1406                                 si->si_wbe = top_be;
1407                         else
1408                                 si->si_wbe = be;
1409                 } else {
1410                         si->si_wbe = be;
1411                 }
1412                 if ( SLAP_SYNC_SUBENTRY( si->si_wbe )) {
1413                         build_new_dn( &si->si_contextdn, &si->si_wbe->be_nsuffix[0],
1414                                 (struct berval *)&slap_ldapsync_cn_bv, NULL );
1415                 } else {
1416                         si->si_contextdn = si->si_wbe->be_nsuffix[0];
1417                 }
1418         }
1419         if ( !si->si_schemachecking )
1420                 op->o_no_schema_check = 1;
1421
1422         /* Establish session, do search */
1423         if ( !si->si_ld ) {
1424                 si->si_refreshDelete = 0;
1425                 si->si_refreshPresent = 0;
1426
1427                 /* use main DB when retrieving contextCSN */
1428                 op->o_bd = si->si_wbe;
1429                 op->o_dn = op->o_bd->be_rootdn;
1430                 op->o_ndn = op->o_bd->be_rootndn;
1431                 rc = do_syncrep1( op, si );
1432         }
1433
1434 reload:
1435         /* Process results */
1436         if ( rc == LDAP_SUCCESS ) {
1437                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1438
1439                 /* use current DB */
1440                 op->o_bd = be;
1441                 op->o_dn = op->o_bd->be_rootdn;
1442                 op->o_ndn = op->o_bd->be_rootndn;
1443                 rc = do_syncrep2( op, si );
1444                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1445                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1446                         goto reload;
1447                 }
1448
1449 deleted:
1450                 /* We got deleted while running on cn=config */
1451                 if ( si->si_ctype < 1 ) {
1452                         if ( si->si_ctype == -1 ) {
1453                                 si->si_ctype = 0;
1454                                 freeinfo = 1;
1455                         }
1456                         if ( si->si_conn )
1457                                 dostop = 1;
1458                         rc = -1;
1459                 }
1460
1461                 if ( rc != SYNC_PAUSED ) {
1462                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1463                                 /* If we succeeded, enable the connection for further listening.
1464                                  * If we failed, tear down the connection and reschedule.
1465                                  */
1466                                 if ( rc == LDAP_SUCCESS ) {
1467                                         if ( si->si_conn ) {
1468                                                 connection_client_enable( si->si_conn );
1469                                         } else {
1470                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1471                                         }
1472                                 } else if ( si->si_conn ) {
1473                                         dostop = 1;
1474                                 }
1475                         } else {
1476                                 if ( rc == -2 ) rc = 0;
1477                         }
1478                 }
1479         }
1480
1481         /* At this point, we have 5 cases:
1482          * 1) for any hard failure, give up and remove this task
1483          * 2) for ServerDown, reschedule this task to run later
1484          * 3) for threadpool pause, reschedule to run immediately
1485          * 4) for Refresh and Success, reschedule to run
1486          * 5) for Persist and Success, reschedule to defer
1487          */
1488         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1489
1490         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1491                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1492         }
1493
1494         if ( dostop ) {
1495                 connection_client_stop( si->si_conn );
1496                 si->si_conn = NULL;
1497         }
1498
1499         if ( rc == SYNC_PAUSED ) {
1500                 rtask->interval.tv_sec = 0;
1501                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1502                 rtask->interval.tv_sec = si->si_interval;
1503                 rc = 0;
1504         } else if ( rc == LDAP_SUCCESS ) {
1505                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1506                         defer = 0;
1507                 }
1508                 rtask->interval.tv_sec = si->si_interval;
1509                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1510                 if ( si->si_retrynum ) {
1511                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1512                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1513                         }
1514                         si->si_retrynum[i] = RETRYNUM_TAIL;
1515                 }
1516         } else {
1517                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1518                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1519                                 break;
1520                 }
1521
1522                 if ( si->si_ctype < 1
1523                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1524                         if ( si->si_re ) {
1525                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1526                                 si->si_re = NULL;
1527                         }
1528                         fail = RETRYNUM_TAIL;
1529                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1530                         if ( si->si_retrynum[i] > 0 )
1531                                 si->si_retrynum[i]--;
1532                         fail = si->si_retrynum[i];
1533                         rtask->interval.tv_sec = si->si_retryinterval[i];
1534                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1535                         slap_wake_listener();
1536                 }
1537         }
1538
1539         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1540         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1541
1542         if ( rc ) {
1543                 if ( fail == RETRYNUM_TAIL ) {
1544                         Debug( LDAP_DEBUG_ANY,
1545                                 "do_syncrepl: %s rc %d quitting\n",
1546                                 si->si_ridtxt, rc, 0 );
1547                 } else if ( fail > 0 ) {
1548                         Debug( LDAP_DEBUG_ANY,
1549                                 "do_syncrepl: %s rc %d retrying (%d retries left)\n",
1550                                 si->si_ridtxt, rc, fail );
1551                 } else {
1552                         Debug( LDAP_DEBUG_ANY,
1553                                 "do_syncrepl: %s rc %d retrying\n",
1554                                 si->si_ridtxt, rc, 0 );
1555                 }
1556         }
1557
1558         /* Do final delete cleanup */
1559         if ( freeinfo ) {
1560                 syncinfo_free( si, 0 );
1561         }
1562         return NULL;
1563 }
1564
1565 #ifdef ENABLE_REWRITE
1566 static int
1567 syncrepl_rewrite_dn(
1568         syncinfo_t *si,
1569         struct berval *dn,
1570         struct berval *sdn )
1571 {
1572         char nul;
1573         int rc;
1574
1575         nul = dn->bv_val[dn->bv_len];
1576         dn->bv_val[dn->bv_len] = 0;
1577         rc = rewrite( si->si_rewrite, SUFFIXM_CTX, dn->bv_val, &sdn->bv_val );
1578         dn->bv_val[dn->bv_len] = nul;
1579
1580         if ( sdn->bv_val == dn->bv_val )
1581                 sdn->bv_val = NULL;
1582         else if ( rc == REWRITE_REGEXEC_OK && sdn->bv_val )
1583                 sdn->bv_len = strlen( sdn->bv_val );
1584         return rc;
1585 }
1586 #define REWRITE_VAL(si, ad, bv, bv2)    \
1587         BER_BVZERO( &bv2 );     \
1588         if ( si->si_rewrite && ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName) \
1589                 syncrepl_rewrite_dn( si, &bv, &bv2); \
1590         if ( BER_BVISNULL( &bv2 ))  \
1591                 ber_dupbv( &bv2, &bv )
1592 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1593         BER_BVZERO( &bv2 );     \
1594         if (si->si_rewrite) \
1595                 syncrepl_rewrite_dn(si, &bv, &bv2); \
1596         rc = dnPrettyNormal( NULL, bv2.bv_val ? &bv2 : &bv, &dn, &ndn, op->o_tmpmemctx ); \
1597         ch_free(bv2.bv_val)
1598 #else
1599 #define REWRITE_VAL(si, ad, bv, bv2)    ber_dupbv(&bv2, &bv)
1600 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1601         rc = dnPrettyNormal( NULL, &bv, &dn, &ndn, op->o_tmpmemctx )
1602 #endif
1603
1604
1605 static slap_verbmasks modops[] = {
1606         { BER_BVC("add"), LDAP_REQ_ADD },
1607         { BER_BVC("delete"), LDAP_REQ_DELETE },
1608         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1609         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1610         { BER_BVNULL, 0 }
1611 };
1612
1613 static int
1614 syncrepl_accesslog_mods(
1615         syncinfo_t *si,
1616         struct berval *vals,
1617         struct Modifications **modres
1618 )
1619 {
1620         char *colon;
1621         const char *text;
1622         AttributeDescription *ad;
1623         struct berval bv, bv2;
1624         short op;
1625         Modifications *mod = NULL, *modlist = NULL, **modtail;
1626         int i, rc = 0;
1627
1628         modtail = &modlist;
1629
1630         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1631                 ad = NULL;
1632                 bv = vals[i];
1633
1634                 colon = ber_bvchr( &bv, ':' );
1635                 if ( !colon ) {
1636                         /* Invalid */
1637                         continue;
1638                 }
1639
1640                 bv.bv_len = colon - bv.bv_val;
1641                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1642                         /* Invalid */
1643                         Debug( LDAP_DEBUG_ANY, "syncrepl_accesslog_mods: %s "
1644                                 "Invalid attribute %s, %s\n",
1645                                 si->si_ridtxt, bv.bv_val, text );
1646                         slap_mods_free( modlist, 1 );
1647                         modlist = NULL;
1648                         rc = -1;
1649                         break;
1650                 }
1651
1652                 /* Ignore dynamically generated attrs */
1653                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1654                         continue;
1655                 }
1656
1657                 /* Ignore excluded attrs */
1658                 if ( ldap_charray_inlist( si->si_exattrs,
1659                         ad->ad_type->sat_cname.bv_val ) )
1660                 {
1661                         continue;
1662                 }
1663
1664                 switch(colon[1]) {
1665                 case '+':       op = LDAP_MOD_ADD; break;
1666                 case '-':       op = LDAP_MOD_DELETE; break;
1667                 case '=':       op = LDAP_MOD_REPLACE; break;
1668                 case '#':       op = LDAP_MOD_INCREMENT; break;
1669                 default:        continue;
1670                 }
1671
1672                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1673                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1674                         mod->sml_flags = 0;
1675                         mod->sml_op = op;
1676                         mod->sml_next = NULL;
1677                         mod->sml_desc = ad;
1678                         mod->sml_type = ad->ad_cname;
1679                         mod->sml_values = NULL;
1680                         mod->sml_nvalues = NULL;
1681                         mod->sml_numvals = 0;
1682
1683                         *modtail = mod;
1684                         modtail = &mod->sml_next;
1685                 }
1686                 if ( colon[2] == ' ' ) {
1687                         bv.bv_val = colon + 3;
1688                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1689                         REWRITE_VAL( si, ad, bv, bv2 );
1690                         ber_bvarray_add( &mod->sml_values, &bv2 );
1691                         mod->sml_numvals++;
1692                 }
1693         }
1694         *modres = modlist;
1695         return rc;
1696 }
1697
1698 static int
1699 syncrepl_changelog_mods(
1700         syncinfo_t *si,
1701         struct berval *vals,
1702         struct Modifications **modres
1703 )
1704 {
1705         return -1;      /* FIXME */
1706 }
1707
1708 static int
1709 syncrepl_message_to_op(
1710         syncinfo_t      *si,
1711         Operation       *op,
1712         LDAPMessage     *msg
1713 )
1714 {
1715         BerElement      *ber = NULL;
1716         Modifications   *modlist = NULL;
1717         logschema *ls;
1718         SlapReply rs = { REP_RESULT };
1719         slap_callback cb = { NULL, null_callback, NULL, NULL };
1720
1721         const char      *text;
1722         char txtbuf[SLAP_TEXT_BUFLEN];
1723         size_t textlen = sizeof txtbuf;
1724
1725         struct berval   bdn, dn = BER_BVNULL, ndn;
1726         struct berval   bv, bv2, *bvals = NULL;
1727         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1728                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1729                 psup = BER_BVNULL, nsup = BER_BVNULL;
1730         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1731         int             do_graduate = 0;
1732
1733         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1734                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1735                         "Message type should be entry (%d)",
1736                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1737                 return -1;
1738         }
1739
1740         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1741                 ls = &accesslog_sc;
1742         else
1743                 ls = &changelog_sc;
1744
1745         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1746
1747         if ( rc != LDAP_SUCCESS ) {
1748                 Debug( LDAP_DEBUG_ANY,
1749                         "syncrepl_message_to_op: %s dn get failed (%d)",
1750                         si->si_ridtxt, rc, 0 );
1751                 return rc;
1752         }
1753
1754         op->o_tag = LBER_DEFAULT;
1755         op->o_bd = si->si_wbe;
1756
1757         if ( BER_BVISEMPTY( &bdn )) {
1758                 Debug( LDAP_DEBUG_ANY,
1759                         "syncrepl_message_to_op: %s got empty dn",
1760                         si->si_ridtxt, 0, 0 );
1761                 return LDAP_OTHER;
1762         }
1763
1764         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1765                 == LDAP_SUCCESS ) {
1766                 if ( bv.bv_val == NULL )
1767                         break;
1768
1769                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1770                         bdn = bvals[0];
1771                         REWRITE_DN( si, bdn, bv2, dn, ndn );
1772                         if ( rc != LDAP_SUCCESS ) {
1773                                 Debug( LDAP_DEBUG_ANY,
1774                                         "syncrepl_message_to_op: %s "
1775                                         "dn \"%s\" normalization failed (%d)",
1776                                         si->si_ridtxt, bdn.bv_val, rc );
1777                                 rc = -1;
1778                                 ch_free( bvals );
1779                                 goto done;
1780                         }
1781                         ber_dupbv( &op->o_req_dn, &dn );
1782                         ber_dupbv( &op->o_req_ndn, &ndn );
1783                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1784                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1785                         freeReqDn = 1;
1786                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1787                         int i = verb_to_mask( bvals[0].bv_val, modops );
1788                         if ( i < 0 ) {
1789                                 Debug( LDAP_DEBUG_ANY,
1790                                         "syncrepl_message_to_op: %s unknown op %s",
1791                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1792                                 ch_free( bvals );
1793                                 rc = -1;
1794                                 goto done;
1795                         }
1796                         op->o_tag = modops[i].mask;
1797                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1798                         /* Parse attribute into modlist */
1799                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1800                                 rc = syncrepl_accesslog_mods( si, bvals, &modlist );
1801                         } else {
1802                                 rc = syncrepl_changelog_mods( si, bvals, &modlist );
1803                         }
1804                         if ( rc ) goto done;
1805                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1806                         rdn = bvals[0];
1807                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1808                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1809                                 deleteOldRdn = 1;
1810                         }
1811                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1812                         sup = bvals[0];
1813                 } else if ( !ber_bvstrcasecmp( &bv,
1814                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1815                 {
1816                         slap_queue_csn( op, bvals );
1817                         do_graduate = 1;
1818                 }
1819                 ch_free( bvals );
1820         }
1821
1822         /* If we didn't get a mod type or a target DN, bail out */
1823         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1824                 rc = -1;
1825                 goto done;
1826         }
1827
1828         op->o_callback = &cb;
1829         slap_op_time( &op->o_time, &op->o_tincr );
1830
1831         switch( op->o_tag ) {
1832         case LDAP_REQ_ADD:
1833         case LDAP_REQ_MODIFY:
1834                 /* If we didn't get required data, bail */
1835                 if ( !modlist ) goto done;
1836
1837                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1838
1839                 if ( rc != LDAP_SUCCESS ) {
1840                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1841                                 "mods check (%s)\n",
1842                                 si->si_ridtxt, text, 0 );
1843                         goto done;
1844                 }
1845
1846                 if ( op->o_tag == LDAP_REQ_ADD ) {
1847                         Entry *e = entry_alloc();
1848                         op->ora_e = e;
1849                         op->ora_e->e_name = op->o_req_dn;
1850                         op->ora_e->e_nname = op->o_req_ndn;
1851                         freeReqDn = 0;
1852                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1853                         if( rc != LDAP_SUCCESS ) {
1854                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1855                                 "mods2entry (%s)\n",
1856                                         si->si_ridtxt, text, 0 );
1857                         } else {
1858                                 rc = op->o_bd->be_add( op, &rs );
1859                                 Debug( LDAP_DEBUG_SYNC,
1860                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1861                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1862                                 do_graduate = 0;
1863                         }
1864                         if ( e == op->ora_e )
1865                                 be_entry_release_w( op, op->ora_e );
1866                 } else {
1867                         op->orm_modlist = modlist;
1868                         op->o_bd = si->si_wbe;
1869                         rc = op->o_bd->be_modify( op, &rs );
1870                         modlist = op->orm_modlist;
1871                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1872                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1873                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1874                         op->o_bd = si->si_be;
1875                         do_graduate = 0;
1876                 }
1877                 break;
1878         case LDAP_REQ_MODRDN:
1879                 if ( BER_BVISNULL( &rdn ) ) goto done;
1880
1881                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1882                         goto done;
1883                 }
1884                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1885                         goto done;
1886                 }
1887                 if ( !BER_BVISNULL( &sup ) ) {
1888                         REWRITE_DN( si, sup, bv2, psup, nsup );
1889                         if ( rc )
1890                                 goto done;
1891                         op->orr_newSup = &psup;
1892                         op->orr_nnewSup = &nsup;
1893                 } else {
1894                         op->orr_newSup = NULL;
1895                         op->orr_nnewSup = NULL;
1896                 }
1897                 op->orr_newrdn = prdn;
1898                 op->orr_nnewrdn = nrdn;
1899                 op->orr_deleteoldrdn = deleteOldRdn;
1900                 op->orr_modlist = NULL;
1901                 if ( slap_modrdn2mods( op, &rs ) ) {
1902                         goto done;
1903                 }
1904
1905                 /* Append modlist for operational attrs */
1906                 {
1907                         Modifications *m;
1908
1909                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1910                                 ;
1911                         m->sml_next = modlist;
1912                         modlist = NULL;
1913                 }
1914                 rc = op->o_bd->be_modrdn( op, &rs );
1915                 slap_mods_free( op->orr_modlist, 1 );
1916                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1917                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1918                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1919                 do_graduate = 0;
1920                 break;
1921         case LDAP_REQ_DELETE:
1922                 rc = op->o_bd->be_delete( op, &rs );
1923                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1924                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1925                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1926                 do_graduate = 0;
1927                 break;
1928         }
1929 done:
1930         if ( do_graduate )
1931                 slap_graduate_commit_csn( op );
1932         op->o_bd = si->si_be;
1933         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1934         BER_BVZERO( &op->o_csn );
1935         if ( modlist ) {
1936                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1937         }
1938         if ( !BER_BVISNULL( &rdn ) ) {
1939                 if ( !BER_BVISNULL( &nsup ) ) {
1940                         ch_free( nsup.bv_val );
1941                 }
1942                 if ( !BER_BVISNULL( &psup ) ) {
1943                         ch_free( psup.bv_val );
1944                 }
1945                 if ( !BER_BVISNULL( &nrdn ) ) {
1946                         ch_free( nrdn.bv_val );
1947                 }
1948                 if ( !BER_BVISNULL( &prdn ) ) {
1949                         ch_free( prdn.bv_val );
1950                 }
1951         }
1952         if ( freeReqDn ) {
1953                 ch_free( op->o_req_ndn.bv_val );
1954                 ch_free( op->o_req_dn.bv_val );
1955         }
1956         ber_free( ber, 0 );
1957         return rc;
1958 }
1959
1960 static int
1961 syncrepl_message_to_entry(
1962         syncinfo_t      *si,
1963         Operation       *op,
1964         LDAPMessage     *msg,
1965         Modifications   **modlist,
1966         Entry                   **entry,
1967         int             syncstate
1968 )
1969 {
1970         Entry           *e = NULL;
1971         BerElement      *ber = NULL;
1972         Modifications   tmp;
1973         Modifications   *mod;
1974         Modifications   **modtail = modlist;
1975
1976         const char      *text;
1977         char txtbuf[SLAP_TEXT_BUFLEN];
1978         size_t textlen = sizeof txtbuf;
1979
1980         struct berval   bdn = BER_BVNULL, dn, ndn, bv2;
1981         int             rc, is_ctx;
1982
1983         *modlist = NULL;
1984
1985         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1986                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1987                         "Message type should be entry (%d)",
1988                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1989                 return -1;
1990         }
1991
1992         op->o_tag = LDAP_REQ_ADD;
1993
1994         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1995         if ( rc != LDAP_SUCCESS ) {
1996                 Debug( LDAP_DEBUG_ANY,
1997                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1998                         si->si_ridtxt, rc, 0 );
1999                 return rc;
2000         }
2001
2002         if ( BER_BVISEMPTY( &bdn ) && !BER_BVISEMPTY( &op->o_bd->be_nsuffix[0] ) ) {
2003                 Debug( LDAP_DEBUG_ANY,
2004                         "syncrepl_message_to_entry: %s got empty dn",
2005                         si->si_ridtxt, 0, 0 );
2006                 return LDAP_OTHER;
2007         }
2008
2009         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
2010                 /* NOTE: this could be done even before decoding the DN,
2011                  * although encoding errors wouldn't be detected */
2012                 rc = LDAP_SUCCESS;
2013                 goto done;
2014         }
2015
2016         if ( entry == NULL ) {
2017                 return -1;
2018         }
2019
2020         REWRITE_DN( si, bdn, bv2, dn, ndn );
2021         if ( rc != LDAP_SUCCESS ) {
2022                 /* One of the things that could happen is that the schema
2023                  * is not lined-up; this could result in unknown attributes.
2024                  * A value non conformant to the syntax should be unlikely,
2025                  * except when replicating between different versions
2026                  * of the software, or when syntax validation bugs are fixed
2027                  */
2028                 Debug( LDAP_DEBUG_ANY,
2029                         "syncrepl_message_to_entry: "
2030                         "%s dn \"%s\" normalization failed (%d)",
2031                         si->si_ridtxt, bdn.bv_val, rc );
2032                 return rc;
2033         }
2034
2035         ber_dupbv( &op->o_req_dn, &dn );
2036         ber_dupbv( &op->o_req_ndn, &ndn );
2037         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
2038         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
2039
2040         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
2041
2042         e = entry_alloc();
2043         e->e_name = op->o_req_dn;
2044         e->e_nname = op->o_req_ndn;
2045
2046         while ( ber_remaining( ber ) ) {
2047                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
2048                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
2049                 {
2050                         break;
2051                 }
2052
2053                 /* Drop all updates to the contextCSN of the context entry
2054                  * (ITS#4622, etc.)
2055                  */
2056                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
2057                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
2058                         ber_bvarray_free( tmp.sml_values );
2059                         continue;
2060                 }
2061
2062                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
2063
2064                 mod->sml_op = LDAP_MOD_REPLACE;
2065                 mod->sml_flags = 0;
2066                 mod->sml_next = NULL;
2067                 mod->sml_desc = NULL;
2068                 mod->sml_type = tmp.sml_type;
2069                 mod->sml_values = tmp.sml_values;
2070                 mod->sml_nvalues = NULL;
2071                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
2072
2073 #ifdef ENABLE_REWRITE
2074                 if (si->si_rewrite) {
2075                         AttributeDescription *ad = NULL;
2076                         slap_bv2ad( &tmp.sml_type, &ad, &text );
2077                         if ( ad ) {
2078                                 mod->sml_desc = ad;
2079                                 mod->sml_type = ad->ad_cname;
2080                                 if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
2081                                         int i;
2082                                         for ( i = 0; tmp.sml_values[i].bv_val; i++ ) {
2083                                                 syncrepl_rewrite_dn( si, &tmp.sml_values[i], &bv2);
2084                                                 if ( !BER_BVISNULL( &bv2 )) {
2085                                                         ber_memfree( tmp.sml_values[i].bv_val );
2086                                                         tmp.sml_values[i] = bv2;
2087                                                 }
2088                                         }
2089                                 }
2090                         }
2091                 }
2092 #endif
2093                 *modtail = mod;
2094                 modtail = &mod->sml_next;
2095         }
2096
2097         if ( *modlist == NULL ) {
2098                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
2099                         si->si_ridtxt, 0, 0 );
2100                 rc = -1;
2101                 goto done;
2102         }
2103
2104         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
2105
2106         if ( rc != LDAP_SUCCESS ) {
2107                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
2108                         si->si_ridtxt, text, 0 );
2109                 goto done;
2110         }
2111
2112         /* Strip out dynamically generated attrs */
2113         for ( modtail = modlist; *modtail ; ) {
2114                 mod = *modtail;
2115                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
2116                         *modtail = mod->sml_next;
2117                         slap_mod_free( &mod->sml_mod, 0 );
2118                         ch_free( mod );
2119                 } else {
2120                         modtail = &mod->sml_next;
2121                 }
2122         }
2123
2124         /* Strip out attrs in exattrs list */
2125         for ( modtail = modlist; *modtail ; ) {
2126                 mod = *modtail;
2127                 if ( ldap_charray_inlist( si->si_exattrs,
2128                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
2129                 {
2130                         *modtail = mod->sml_next;
2131                         slap_mod_free( &mod->sml_mod, 0 );
2132                         ch_free( mod );
2133                 } else {
2134                         modtail = &mod->sml_next;
2135                 }
2136         }
2137
2138         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
2139         if( rc != LDAP_SUCCESS ) {
2140                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
2141                         si->si_ridtxt, text, 0 );
2142         }
2143
2144 done:
2145         ber_free( ber, 0 );
2146         if ( rc != LDAP_SUCCESS ) {
2147                 if ( e ) {
2148                         entry_free( e );
2149                         e = NULL;
2150                 }
2151         }
2152         if ( entry )
2153                 *entry = e;
2154
2155         return rc;
2156 }
2157
2158 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
2159
2160 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
2161  * entry if a previous refresh was interrupted before sending us a new
2162  * context state. We try to compare the new entry to the existing entry
2163  * and ignore the new entry if they are the same.
2164  *
2165  * Also, we may get an update where the entryDN has changed, due to
2166  * a ModDn on the provider. We detect this as well, so we can issue
2167  * the corresponding operation locally.
2168  *
2169  * In the case of a modify, we get a list of all the attributes
2170  * in the original entry. Rather than deleting the entry and re-adding it,
2171  * we issue a Modify request that deletes all the attributes and adds all
2172  * the new ones. This avoids the issue of trying to delete/add a non-leaf
2173  * entry.
2174  *
2175  * We otherwise distinguish ModDN from Modify; in the case of
2176  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
2177  * operational attributes from the entry, and do a regular ModDN.
2178  */
2179 typedef struct dninfo {
2180         Entry *new_entry;
2181         struct berval dn;
2182         struct berval ndn;
2183         struct berval nnewSup;
2184         int renamed;    /* Was an existing entry renamed? */
2185         int delOldRDN;  /* Was old RDN deleted? */
2186         Modifications **modlist;        /* the modlist we received */
2187         Modifications *mods;    /* the modlist we compared */
2188         Attribute *oldNattr;    /* old naming attr */
2189         AttributeDescription *oldDesc;  /* for renames */
2190         AttributeDescription *newDesc;  /* for renames */
2191 } dninfo;
2192
2193 /* return 1 if inserted, 0 otherwise */
2194 static int
2195 avl_presentlist_insert(
2196         syncinfo_t* si,
2197         struct berval *syncUUID )
2198 {
2199         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
2200
2201         syncuuid_bv->bv_len = syncUUID->bv_len;
2202         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
2203         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
2204         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
2205
2206         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
2207                 syncuuid_cmp, avl_dup_error ) )
2208         {
2209                 ch_free( syncuuid_bv );
2210                 return 0;
2211         }
2212
2213         return 1;
2214 }
2215
2216 static int
2217 syncrepl_entry(
2218         syncinfo_t* si,
2219         Operation *op,
2220         Entry* entry,
2221         Modifications** modlist,
2222         int syncstate,
2223         struct berval* syncUUID,
2224         struct berval* syncCSN )
2225 {
2226         Backend *be = op->o_bd;
2227         slap_callback   cb = { NULL, NULL, NULL, NULL };
2228         int syncuuid_inserted = 0;
2229         struct berval   syncUUID_strrep = BER_BVNULL;
2230
2231         SlapReply       rs_search = {REP_RESULT};
2232         SlapReply       rs_delete = {REP_RESULT};
2233         SlapReply       rs_add = {REP_RESULT};
2234         SlapReply       rs_modify = {REP_RESULT};
2235         Filter f = {0};
2236         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2237         int rc = LDAP_SUCCESS;
2238
2239         struct berval pdn = BER_BVNULL;
2240         dninfo dni = {0};
2241         int     retry = 1;
2242         int     freecsn = 1;
2243
2244         Debug( LDAP_DEBUG_SYNC,
2245                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2246                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2247
2248         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2249                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2250                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2251                 }
2252         }
2253
2254         if ( syncstate == LDAP_SYNC_PRESENT ) {
2255                 return 0;
2256         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2257                 if ( entry == NULL ) {
2258                         return 0;
2259                 }
2260         }
2261
2262         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2263         if ( syncstate != LDAP_SYNC_DELETE ) {
2264                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2265
2266                 if ( a == NULL ) {
2267                         /* add if missing */
2268                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2269                                 &syncUUID_strrep, syncUUID );
2270
2271                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2272                         /* replace only if necessary */
2273                         if ( a->a_nvals != a->a_vals ) {
2274                                 ber_memfree( a->a_nvals[0].bv_val );
2275                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2276                         }
2277                         ber_memfree( a->a_vals[0].bv_val );
2278                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2279                 }
2280         }
2281
2282         f.f_choice = LDAP_FILTER_EQUALITY;
2283         f.f_ava = &ava;
2284         ava.aa_desc = slap_schema.si_ad_entryUUID;
2285         ava.aa_value = *syncUUID;
2286
2287         if ( syncuuid_inserted ) {
2288                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2289                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2290         }
2291         op->ors_filter = &f;
2292
2293         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2294         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2295                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2296         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2297         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2298                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2299         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2300         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2301
2302         op->o_tag = LDAP_REQ_SEARCH;
2303         op->ors_scope = LDAP_SCOPE_SUBTREE;
2304         op->ors_deref = LDAP_DEREF_NEVER;
2305
2306         /* get the entry for this UUID */
2307         op->o_req_dn = si->si_base;
2308         op->o_req_ndn = si->si_base;
2309
2310         op->o_time = slap_get_time();
2311         op->ors_tlimit = SLAP_NO_LIMIT;
2312         op->ors_slimit = 1;
2313         op->ors_limit = NULL;
2314
2315         op->ors_attrs = slap_anlist_all_attributes;
2316         op->ors_attrsonly = 0;
2317
2318         /* set callback function */
2319         op->o_callback = &cb;
2320         cb.sc_response = dn_callback;
2321         cb.sc_private = &dni;
2322         dni.new_entry = entry;
2323         dni.modlist = modlist;
2324
2325         rc = be->be_search( op, &rs_search );
2326         Debug( LDAP_DEBUG_SYNC,
2327                         "syncrepl_entry: %s be_search (%d)\n",
2328                         si->si_ridtxt, rc, 0 );
2329
2330         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2331                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2332         }
2333
2334         cb.sc_response = null_callback;
2335         cb.sc_private = si;
2336
2337         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2338                 Debug( LDAP_DEBUG_SYNC,
2339                                 "syncrepl_entry: %s %s\n",
2340                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2341         } else {
2342                 Debug( LDAP_DEBUG_SYNC,
2343                                 "syncrepl_entry: %s %s\n",
2344                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2345         }
2346
2347         assert( BER_BVISNULL( &op->o_csn ) );
2348         if ( syncCSN ) {
2349                 slap_queue_csn( op, syncCSN );
2350         }
2351
2352         slap_op_time( &op->o_time, &op->o_tincr );
2353         switch ( syncstate ) {
2354         case LDAP_SYNC_ADD:
2355         case LDAP_SYNC_MODIFY:
2356                 if ( BER_BVISNULL( &op->o_csn ))
2357                 {
2358
2359                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2360                         if ( a ) {
2361                                 /* FIXME: op->o_csn is assumed to be
2362                                  * on the thread's slab; this needs
2363                                  * to be cleared ASAP.
2364                                  * What happens if already present?
2365                                  */
2366                                 assert( BER_BVISNULL( &op->o_csn ) );
2367                                 op->o_csn = a->a_vals[0];
2368                                 freecsn = 0;
2369                         }
2370                 }
2371 retry_add:;
2372                 if ( BER_BVISNULL( &dni.dn ) ) {
2373
2374                         op->o_req_dn = entry->e_name;
2375                         op->o_req_ndn = entry->e_nname;
2376                         op->o_tag = LDAP_REQ_ADD;
2377                         op->ora_e = entry;
2378                         op->o_bd = si->si_wbe;
2379
2380                         rc = op->o_bd->be_add( op, &rs_add );
2381                         Debug( LDAP_DEBUG_SYNC,
2382                                         "syncrepl_entry: %s be_add %s (%d)\n",
2383                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2384                         switch ( rs_add.sr_err ) {
2385                         case LDAP_SUCCESS:
2386                                 if ( op->ora_e == entry ) {
2387                                         be_entry_release_w( op, entry );
2388                                 }
2389                                 entry = NULL;
2390                                 break;
2391
2392                         case LDAP_REFERRAL:
2393                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2394                          * only if the suffix entry is not present */
2395                         case LDAP_NO_SUCH_OBJECT:
2396                                 rc = syncrepl_add_glue( op, entry );
2397                                 entry = NULL;
2398                                 break;
2399
2400                         /* if an entry was added via syncrepl_add_glue(),
2401                          * it likely has no entryUUID, so the previous
2402                          * be_search() doesn't find it.  In this case,
2403                          * give syncrepl a chance to modify it. Also
2404                          * allow for entries that were recreated with the
2405                          * same DN but a different entryUUID.
2406                          */
2407                         case LDAP_ALREADY_EXISTS:
2408                                 if ( retry ) {
2409                                         Operation       op2 = *op;
2410                                         SlapReply       rs2 = { 0 };
2411                                         slap_callback   cb2 = { 0 };
2412
2413                                         op2.o_bd = be;
2414                                         op2.o_tag = LDAP_REQ_SEARCH;
2415                                         op2.o_req_dn = entry->e_name;
2416                                         op2.o_req_ndn = entry->e_nname;
2417                                         op2.ors_scope = LDAP_SCOPE_BASE;
2418                                         op2.ors_deref = LDAP_DEREF_NEVER;
2419                                         op2.ors_attrs = slap_anlist_all_attributes;
2420                                         op2.ors_attrsonly = 0;
2421                                         op2.ors_limit = NULL;
2422                                         op2.ors_slimit = 1;
2423                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2424
2425                                         f.f_choice = LDAP_FILTER_PRESENT;
2426                                         f.f_desc = slap_schema.si_ad_objectClass;
2427                                         op2.ors_filter = &f;
2428                                         op2.ors_filterstr = generic_filterstr;
2429
2430                                         op2.o_callback = &cb2;
2431                                         cb2.sc_response = dn_callback;
2432                                         cb2.sc_private = &dni;
2433
2434                                         rc = be->be_search( &op2, &rs2 );
2435                                         if ( rc ) goto done;
2436
2437                                         retry = 0;
2438                                         slap_op_time( &op->o_time, &op->o_tincr );
2439                                         goto retry_add;
2440                                 }
2441                                 /* FALLTHRU */
2442
2443                         default:
2444                                 Debug( LDAP_DEBUG_ANY,
2445                                         "syncrepl_entry: %s be_add %s failed (%d)\n",
2446                                         si->si_ridtxt, op->o_req_dn.bv_val, rs_add.sr_err );
2447                                 break;
2448                         }
2449                         syncCSN = NULL;
2450                         op->o_bd = be;
2451                         goto done;
2452                 }
2453                 /* FALLTHRU */
2454                 op->o_req_dn = dni.dn;
2455                 op->o_req_ndn = dni.ndn;
2456                 if ( dni.renamed ) {
2457                         struct berval noldp, newp;
2458                         Modifications *mod, **modtail, **ml, *m2;
2459                         int i, got_replace = 0, just_rename = 0;
2460
2461                         op->o_tag = LDAP_REQ_MODRDN;
2462                         dnRdn( &entry->e_name, &op->orr_newrdn );
2463                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2464
2465                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2466                                 dnParent( &entry->e_name, &newp );
2467                                 op->orr_newSup = &newp;
2468                                 op->orr_nnewSup = &dni.nnewSup;
2469                         } else {
2470                                 op->orr_newSup = NULL;
2471                                 op->orr_nnewSup = NULL;
2472                         }
2473                         op->orr_deleteoldrdn = dni.delOldRDN;
2474                         op->orr_modlist = NULL;
2475                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2476                                 goto done;
2477                         }
2478
2479                         /* Drop the RDN-related mods from this op, because their
2480                          * equivalents were just setup by slap_modrdn2mods.
2481                          *
2482                          * If delOldRDN is TRUE then we should see a delete modop
2483                          * for oldDesc. We might see a replace instead.
2484                          *  delete with no values: therefore newDesc != oldDesc.
2485                          *   if oldNattr had only one value, then Drop this op.
2486                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2487                          *  delete with N values: Drop oldRDN value, keep remainder.
2488                          *  replace with 1 value: if oldNattr had only one value and
2489                          *     newDesc == oldDesc, Drop this op.
2490                          * Any other cases must be left intact.
2491                          *
2492                          * We should also see an add modop for newDesc. (But not if
2493                          * we got a replace modop due to delOldRDN.) If it has
2494                          * multiple values, we'll have to drop the new RDN value.
2495                          */
2496                         modtail = &op->orr_modlist;
2497                         if ( dni.delOldRDN ) {
2498                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2499                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2500                                                 mod = *ml;
2501                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2502                                                         dni.oldDesc != dni.newDesc ) {
2503                                                         /* This Replace is due to other Mods.
2504                                                          * Just let it ride.
2505                                                          */
2506                                                         continue;
2507                                                 }
2508                                                 if ( mod->sml_numvals <= 1 &&
2509                                                         dni.oldNattr->a_numvals == 1 &&
2510                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2511                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2512                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2513                                                                 got_replace = 1;
2514                                                         /* Drop this op */
2515                                                         *ml = mod->sml_next;
2516                                                         mod->sml_next = NULL;
2517                                                         slap_mods_free( mod, 1 );
2518                                                         break;
2519                                                 }
2520                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2521                                                         continue;
2522                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2523                                                         if ( m2->sml_desc == dni.oldDesc &&
2524                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2525                                                 }
2526                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2527                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2528                                                                 mod->sml_numvals--;
2529                                                                 ch_free( mod->sml_values[i].bv_val );
2530                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2531                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2532                                                                 if ( mod->sml_nvalues ) {
2533                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2534                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2535                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2536                                                                 }
2537                                                                 break;
2538                                                         }
2539                                                 }
2540                                                 if ( !mod->sml_numvals ) {
2541                                                         /* Drop this op */
2542                                                         *ml = mod->sml_next;
2543                                                         mod->sml_next = NULL;
2544                                                         slap_mods_free( mod, 1 );
2545                                                 }
2546                                                 break;
2547                                         }
2548                                 }
2549                         }
2550                         if ( !got_replace ) {
2551                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2552                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2553                                                 mod = *ml;
2554                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2555                                                         continue;
2556                                                 if ( mod->sml_numvals == 1 ) {
2557                                                         /* Drop this op */
2558                                                         *ml = mod->sml_next;
2559                                                         mod->sml_next = NULL;
2560                                                         slap_mods_free( mod, 1 );
2561                                                         break;
2562                                                 }
2563                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2564                                                         if ( m2->sml_desc == dni.oldDesc &&
2565                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2566                                                 }
2567                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2568                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2569                                                                 mod->sml_numvals--;
2570                                                                 ch_free( mod->sml_values[i].bv_val );
2571                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2572                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2573                                                                 if ( mod->sml_nvalues ) {
2574                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2575                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2576                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2577                                                                 }
2578                                                                 break;
2579                                                         }
2580                                                 }
2581                                                 break;
2582                                         }
2583                                 }
2584                         }
2585
2586                         /* RDNs must be NUL-terminated for back-ldap */
2587                         noldp = op->orr_newrdn;
2588                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2589                         noldp = op->orr_nnewrdn;
2590                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2591
2592                         /* Setup opattrs too */
2593                         {
2594                                 static AttributeDescription *nullattr = NULL;
2595                                 static AttributeDescription **const opattrs[] = {
2596                                         &slap_schema.si_ad_entryCSN,
2597                                         &slap_schema.si_ad_modifiersName,
2598                                         &slap_schema.si_ad_modifyTimestamp,
2599                                         &nullattr
2600                                 };
2601                                 AttributeDescription *opattr;
2602                                 int i;
2603
2604                                 modtail = &m2;
2605                                 /* pull mod off incoming modlist */
2606                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2607                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2608                                         {
2609                                                 if ( (*ml)->sml_desc == opattr ) {
2610                                                         mod = *ml;
2611                                                         *ml = mod->sml_next;
2612                                                         mod->sml_next = NULL;
2613                                                         *modtail = mod;
2614                                                         modtail = &mod->sml_next;
2615                                                         break;
2616                                                 }
2617                                         }
2618                                 }
2619                                 /* If there are still Modifications left, put the opattrs
2620                                  * back, and let be_modify run. Otherwise, append the opattrs
2621                                  * to the orr_modlist.
2622                                  */
2623                                 if ( dni.mods ) {
2624                                         mod = dni.mods;
2625                                         /* don't set a CSN for the rename op */
2626                                         if ( syncCSN )
2627                                                 slap_graduate_commit_csn( op );
2628                                 } else {
2629                                         mod = op->orr_modlist;
2630                                         just_rename = 1;
2631                                 }
2632                                 for ( ; mod->sml_next; mod=mod->sml_next );
2633                                 mod->sml_next = m2;
2634                         }
2635                         op->o_bd = si->si_wbe;
2636 retry_modrdn:;
2637                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2638
2639                         /* NOTE: noSuchObject should result because the new superior
2640                          * has not been added yet (ITS#6472) */
2641                         if ( rc == LDAP_NO_SUCH_OBJECT && !BER_BVISNULL( op->orr_nnewSup )) {
2642                                 Operation op2 = *op;
2643                                 rc = syncrepl_add_glue_ancestors( &op2, entry );
2644                                 if ( rc == LDAP_SUCCESS ) {
2645                                         goto retry_modrdn;
2646                                 }
2647                         }
2648
2649                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2650                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2651
2652                         slap_mods_free( op->orr_modlist, 1 );
2653                         Debug( LDAP_DEBUG_SYNC,
2654                                         "syncrepl_entry: %s be_modrdn %s (%d)\n",
2655                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2656                         op->o_bd = be;
2657                         /* Renamed entries may still have other mods so just fallthru */
2658                         op->o_req_dn = entry->e_name;
2659                         op->o_req_ndn = entry->e_nname;
2660                         /* Use CSN on the modify */
2661                         if ( just_rename )
2662                                 syncCSN = NULL;
2663                         else if ( syncCSN )
2664                                 slap_queue_csn( op, syncCSN );
2665                 }
2666                 if ( dni.mods ) {
2667                         op->o_tag = LDAP_REQ_MODIFY;
2668                         op->orm_modlist = dni.mods;
2669                         op->orm_no_opattrs = 1;
2670                         op->o_bd = si->si_wbe;
2671
2672                         rc = op->o_bd->be_modify( op, &rs_modify );
2673                         slap_mods_free( op->orm_modlist, 1 );
2674                         op->orm_no_opattrs = 0;
2675                         Debug( LDAP_DEBUG_SYNC,
2676                                         "syncrepl_entry: %s be_modify %s (%d)\n",
2677                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2678                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2679                                 Debug( LDAP_DEBUG_ANY,
2680                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2681                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2682                         }
2683                         syncCSN = NULL;
2684                         op->o_bd = be;
2685                 } else if ( !dni.renamed ) {
2686                         Debug( LDAP_DEBUG_SYNC,
2687                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2688                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2689                         if ( syncCSN ) {
2690                                 slap_graduate_commit_csn( op );
2691                                 syncCSN = NULL;
2692                         }
2693                 }
2694                 goto done;
2695         case LDAP_SYNC_DELETE :
2696                 if ( !BER_BVISNULL( &dni.dn ) ) {
2697                         op->o_req_dn = dni.dn;
2698                         op->o_req_ndn = dni.ndn;
2699                         op->o_tag = LDAP_REQ_DELETE;
2700                         op->o_bd = si->si_wbe;
2701                         rc = op->o_bd->be_delete( op, &rs_delete );
2702                         Debug( LDAP_DEBUG_SYNC,
2703                                         "syncrepl_entry: %s be_delete %s (%d)\n",
2704                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2705
2706                         while ( rs_delete.sr_err == LDAP_SUCCESS
2707                                 && op->o_delete_glue_parent ) {
2708                                 op->o_delete_glue_parent = 0;
2709                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2710                                         slap_callback cb = { NULL };
2711                                         cb.sc_response = slap_null_cb;
2712                                         dnParent( &op->o_req_ndn, &pdn );
2713                                         op->o_req_dn = pdn;
2714                                         op->o_req_ndn = pdn;
2715                                         op->o_callback = &cb;
2716                                         op->o_bd->be_delete( op, &rs_delete );
2717                                 } else {
2718                                         break;
2719                                 }
2720                         }
2721                         syncCSN = NULL;
2722                         op->o_bd = be;
2723                 }
2724                 goto done;
2725
2726         default :
2727                 Debug( LDAP_DEBUG_ANY,
2728                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2729                 goto done;
2730         }
2731
2732 done:
2733         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2734                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2735                 BER_BVZERO( &syncUUID_strrep );
2736         }
2737         if ( !BER_BVISNULL( &dni.ndn ) ) {
2738                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2739         }
2740         if ( !BER_BVISNULL( &dni.dn ) ) {
2741                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2742         }
2743         if ( entry ) {
2744                 entry_free( entry );
2745         }
2746         if ( syncCSN ) {
2747                 slap_graduate_commit_csn( op );
2748         }
2749         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2750                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2751         }
2752         BER_BVZERO( &op->o_csn );
2753         return rc;
2754 }
2755
2756 static struct berval gcbva[] = {
2757         BER_BVC("top"),
2758         BER_BVC("glue"),
2759         BER_BVNULL
2760 };
2761
2762 #define NP_DELETE_ONE   2
2763
2764 static void
2765 syncrepl_del_nonpresent(
2766         Operation *op,
2767         syncinfo_t *si,
2768         BerVarray uuids,
2769         struct sync_cookie *sc,
2770         int m )
2771 {
2772         Backend* be = op->o_bd;
2773         slap_callback   cb = { NULL };
2774         SlapReply       rs_search = {REP_RESULT};
2775         SlapReply       rs_delete = {REP_RESULT};
2776         SlapReply       rs_modify = {REP_RESULT};
2777         struct nonpresent_entry *np_list, *np_prev;
2778         int rc;
2779         AttributeName   an[2];
2780
2781         struct berval pdn = BER_BVNULL;
2782         struct berval csn;
2783
2784         op->o_req_dn = si->si_base;
2785         op->o_req_ndn = si->si_base;
2786
2787         cb.sc_response = nonpresent_callback;
2788         cb.sc_private = si;
2789
2790         op->o_callback = &cb;
2791         op->o_tag = LDAP_REQ_SEARCH;
2792         op->ors_scope = si->si_scope;
2793         op->ors_deref = LDAP_DEREF_NEVER;
2794         op->o_time = slap_get_time();
2795         op->ors_tlimit = SLAP_NO_LIMIT;
2796
2797
2798         if ( uuids ) {
2799                 Filter uf;
2800                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2801                 int i;
2802
2803                 op->ors_attrsonly = 1;
2804                 op->ors_attrs = slap_anlist_no_attrs;
2805                 op->ors_limit = NULL;
2806                 op->ors_filter = &uf;
2807
2808                 uf.f_ava = &eq;
2809                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2810                 uf.f_next = NULL;
2811                 uf.f_choice = LDAP_FILTER_EQUALITY;
2812                 si->si_refreshDelete |= NP_DELETE_ONE;
2813
2814                 for (i=0; uuids[i].bv_val; i++) {
2815                         op->ors_slimit = 1;
2816                         uf.f_av_value = uuids[i];
2817                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2818                         rc = be->be_search( op, &rs_search );
2819                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2820                 }
2821                 si->si_refreshDelete ^= NP_DELETE_ONE;
2822         } else {
2823                 Filter *cf, *of;
2824                 Filter mmf[2];
2825                 AttributeAssertion mmaa;
2826
2827                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2828                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2829                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2830                 op->ors_attrs = an;
2831                 op->ors_slimit = SLAP_NO_LIMIT;
2832                 op->ors_tlimit = SLAP_NO_LIMIT;
2833                 op->ors_limit = NULL;
2834                 op->ors_attrsonly = 0;
2835                 op->ors_filter = filter_dup( si->si_filter, op->o_tmpmemctx );
2836                 /* In multimaster, updates can continue to arrive while
2837                  * we're searching. Limit the search result to entries
2838                  * older than our newest cookie CSN.
2839                  */
2840                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2841                         Filter *f;
2842                         int i;
2843
2844                         f = mmf;
2845                         f->f_choice = LDAP_FILTER_AND;
2846                         f->f_next = op->ors_filter;
2847                         f->f_and = f+1;
2848                         of = f->f_and;
2849                         f = of;
2850                         f->f_choice = LDAP_FILTER_LE;
2851                         f->f_ava = &mmaa;
2852                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2853                         f->f_next = NULL;
2854                         BER_BVZERO( &f->f_av_value );
2855                         for ( i=0; i<sc->numcsns; i++ ) {
2856                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2857                                         f->f_av_value = sc->ctxcsn[i];
2858                         }
2859                         of = op->ors_filter;
2860                         op->ors_filter = mmf;
2861                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2862                 } else {
2863                         cf = NULL;
2864                         op->ors_filterstr = si->si_filterstr;
2865                 }
2866                 op->o_nocaching = 1;
2867
2868
2869                 rc = be->be_search( op, &rs_search );
2870                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2871                         op->ors_filter = of;
2872                 }
2873                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2874                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2875                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2876                 }
2877
2878         }
2879
2880         op->o_nocaching = 0;
2881
2882         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2883
2884                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2885                         csn = sc->ctxcsn[m];
2886                 } else {
2887                         csn = si->si_syncCookie.ctxcsn[0];
2888                 }
2889
2890                 op->o_bd = si->si_wbe;
2891                 slap_queue_csn( op, &csn );
2892
2893                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2894                 while ( np_list != NULL ) {
2895                         LDAP_LIST_REMOVE( np_list, npe_link );
2896                         np_prev = np_list;
2897                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2898                         op->o_tag = LDAP_REQ_DELETE;
2899                         op->o_callback = &cb;
2900                         cb.sc_response = null_callback;
2901                         cb.sc_private = si;
2902                         op->o_req_dn = *np_prev->npe_name;
2903                         op->o_req_ndn = *np_prev->npe_nname;
2904                         rc = op->o_bd->be_delete( op, &rs_delete );
2905                         Debug( LDAP_DEBUG_SYNC,
2906                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2907                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2908
2909                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2910                                 Modifications mod1, mod2;
2911                                 mod1.sml_op = LDAP_MOD_REPLACE;
2912                                 mod1.sml_flags = 0;
2913                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2914                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2915                                 mod1.sml_numvals = 2;
2916                                 mod1.sml_values = &gcbva[0];
2917                                 mod1.sml_nvalues = NULL;
2918                                 mod1.sml_next = &mod2;
2919
2920                                 mod2.sml_op = LDAP_MOD_REPLACE;
2921                                 mod2.sml_flags = 0;
2922                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2923                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2924                                 mod2.sml_numvals = 1;
2925                                 mod2.sml_values = &gcbva[1];
2926                                 mod2.sml_nvalues = NULL;
2927                                 mod2.sml_next = NULL;
2928
2929                                 op->o_tag = LDAP_REQ_MODIFY;
2930                                 op->orm_modlist = &mod1;
2931
2932                                 rc = op->o_bd->be_modify( op, &rs_modify );
2933                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2934                         }
2935
2936                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2937                                         op->o_delete_glue_parent ) {
2938                                 op->o_delete_glue_parent = 0;
2939                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2940                                         slap_callback cb = { NULL };
2941                                         cb.sc_response = slap_null_cb;
2942                                         dnParent( &op->o_req_ndn, &pdn );
2943                                         op->o_req_dn = pdn;
2944                                         op->o_req_ndn = pdn;
2945                                         op->o_callback = &cb;
2946                                         /* give it a root privil ? */
2947                                         op->o_bd->be_delete( op, &rs_delete );
2948                                 } else {
2949                                         break;
2950                                 }
2951                         }
2952
2953                         op->o_delete_glue_parent = 0;
2954
2955                         ber_bvfree( np_prev->npe_name );
2956                         ber_bvfree( np_prev->npe_nname );
2957                         ch_free( np_prev );
2958
2959                         if ( slapd_shutdown ) {
2960                                 break;
2961                         }
2962                 }
2963
2964                 slap_graduate_commit_csn( op );
2965                 op->o_bd = be;
2966
2967                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2968                 BER_BVZERO( &op->o_csn );
2969         }
2970
2971         return;
2972 }
2973
2974 static int
2975 syncrepl_add_glue_ancestors(
2976         Operation* op,
2977         Entry *e )
2978 {
2979         Backend *be = op->o_bd;
2980         slap_callback cb = { NULL };
2981         Attribute       *a;
2982         int     rc;
2983         int suffrdns;
2984         int i;
2985         struct berval dn = BER_BVNULL;
2986         struct berval ndn = BER_BVNULL;
2987         Entry   *glue;
2988         SlapReply       rs_add = {REP_RESULT};
2989         struct berval   ptr, nptr;
2990         char            *comma;
2991
2992         op->o_tag = LDAP_REQ_ADD;
2993         op->o_callback = &cb;
2994         cb.sc_response = null_callback;
2995         cb.sc_private = NULL;
2996
2997         dn = e->e_name;
2998         ndn = e->e_nname;
2999
3000         /* count RDNs in suffix */
3001         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
3002                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
3003                         comma++;
3004                         ptr.bv_len -= comma - ptr.bv_val;
3005                         ptr.bv_val = comma;
3006                         i++;
3007                 }
3008                 suffrdns = i;
3009         } else {
3010                 /* suffix is "" */
3011                 suffrdns = 0;
3012         }
3013
3014         /* Start with BE suffix */
3015         ptr = dn;
3016         for ( i = 0; i < suffrdns; i++ ) {
3017                 comma = ber_bvrchr( &ptr, ',' );
3018                 if ( comma != NULL ) {
3019                         ptr.bv_len = comma - ptr.bv_val;
3020                 } else {
3021                         ptr.bv_len = 0;
3022                         break;
3023                 }
3024         }
3025
3026         if ( !BER_BVISEMPTY( &ptr ) ) {
3027                 dn.bv_len -= ptr.bv_len + 1;
3028                 dn.bv_val += ptr.bv_len + 1;
3029         }
3030
3031         /* the normalizedDNs are always the same length, no counting
3032          * required.
3033          */
3034         nptr = ndn;
3035         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
3036                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
3037                 ndn.bv_len = be->be_nsuffix[0].bv_len;
3038
3039                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
3040
3041         } else {
3042                 nptr.bv_len = 0;
3043         }
3044
3045         while ( ndn.bv_val > e->e_nname.bv_val ) {
3046                 glue = entry_alloc();
3047                 ber_dupbv( &glue->e_name, &dn );
3048                 ber_dupbv( &glue->e_nname, &ndn );
3049
3050                 a = attr_alloc( slap_schema.si_ad_objectClass );
3051
3052                 a->a_numvals = 2;
3053                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
3054                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
3055                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
3056                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
3057
3058                 a->a_nvals = a->a_vals;
3059
3060                 a->a_next = glue->e_attrs;
3061                 glue->e_attrs = a;
3062
3063                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
3064
3065                 a->a_numvals = 1;
3066                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
3067                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
3068                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
3069
3070                 a->a_nvals = a->a_vals;
3071
3072                 a->a_next = glue->e_attrs;
3073                 glue->e_attrs = a;
3074
3075                 op->o_req_dn = glue->e_name;
3076                 op->o_req_ndn = glue->e_nname;
3077                 op->ora_e = glue;
3078                 rc = be->be_add ( op, &rs_add );
3079                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
3080                         if ( op->ora_e == glue )
3081                                 be_entry_release_w( op, glue );
3082                 } else {
3083                 /* incl. ALREADY EXIST */
3084                         entry_free( glue );
3085                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
3086                                 entry_free( e );
3087                                 return rc;
3088                         }
3089                 }
3090
3091                 /* Move to next child */
3092                 comma = ber_bvrchr( &ptr, ',' );
3093                 if ( comma == NULL ) {
3094                         break;
3095                 }
3096                 ptr.bv_len = comma - ptr.bv_val;
3097
3098                 dn.bv_val = ++comma;
3099                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
3100
3101                 comma = ber_bvrchr( &nptr, ',' );
3102                 assert( comma != NULL );
3103                 nptr.bv_len = comma - nptr.bv_val;
3104
3105                 ndn.bv_val = ++comma;
3106                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
3107         }
3108
3109         return rc;
3110 }
3111
3112 int
3113 syncrepl_add_glue(
3114         Operation* op,
3115         Entry *e )
3116 {
3117         slap_callback cb = { NULL };
3118         int     rc;
3119         Backend *be = op->o_bd;
3120         SlapReply       rs_add = {REP_RESULT};
3121
3122         rc = syncrepl_add_glue_ancestors( op, e );
3123         switch ( rc ) {
3124         case LDAP_SUCCESS:
3125         case LDAP_ALREADY_EXISTS:
3126                 break;
3127
3128         default:
3129                 return rc;
3130         }
3131
3132         op->o_tag = LDAP_REQ_ADD;
3133         op->o_callback = &cb;
3134         cb.sc_response = null_callback;
3135         cb.sc_private = NULL;
3136
3137         op->o_req_dn = e->e_name;
3138         op->o_req_ndn = e->e_nname;
3139         op->ora_e = e;
3140         rc = be->be_add ( op, &rs_add );
3141         if ( rs_add.sr_err == LDAP_SUCCESS ) {
3142                 if ( op->ora_e == e )
3143                         be_entry_release_w( op, e );
3144         } else {
3145                 entry_free( e );
3146         }
3147
3148         return rc;
3149 }
3150
3151 static int
3152 syncrepl_updateCookie(
3153         syncinfo_t *si,
3154         Operation *op,
3155         struct sync_cookie *syncCookie )
3156 {
3157         Backend *be = op->o_bd;
3158         Modifications mod;
3159         struct berval first = BER_BVNULL;
3160 #ifdef CHECK_CSN
3161         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
3162 #endif
3163
3164         int rc, i, j, changed = 0;
3165         ber_len_t len;
3166
3167         slap_callback cb = { NULL };
3168         SlapReply       rs_modify = {REP_RESULT};
3169
3170         mod.sml_op = LDAP_MOD_REPLACE;
3171         mod.sml_desc = slap_schema.si_ad_contextCSN;
3172         mod.sml_type = mod.sml_desc->ad_cname;
3173         mod.sml_flags = SLAP_MOD_INTERNAL;
3174         mod.sml_nvalues = NULL;
3175         mod.sml_next = NULL;
3176
3177         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
3178
3179 #ifdef CHECK_CSN
3180         for ( i=0; i<syncCookie->numcsns; i++ ) {
3181                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
3182         }
3183         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3184                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3185         }
3186 #endif
3187
3188         /* clone the cookieState CSNs so we can Replace the whole thing */
3189         mod.sml_numvals = si->si_cookieState->cs_num;
3190         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
3191         for ( i=0; i<mod.sml_numvals; i++ )
3192                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
3193         BER_BVZERO( &mod.sml_values[i] );
3194
3195         /* find any CSNs in the syncCookie that are newer than the cookieState */
3196         for ( i=0; i<syncCookie->numcsns; i++ ) {
3197                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
3198                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
3199                                 continue;
3200                         len = syncCookie->ctxcsn[i].bv_len;
3201                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
3202                                 len = si->si_cookieState->cs_vals[j].bv_len;
3203                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
3204                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
3205                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
3206                                 changed = 1;
3207                                 if ( BER_BVISNULL( &first ) ) {
3208                                         first = syncCookie->ctxcsn[i];
3209
3210                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3211                                 {
3212                                         first = syncCookie->ctxcsn[i];
3213                                 }
3214                         }
3215                         break;
3216                 }
3217                 /* there was no match for this SID, it's a new CSN */
3218                 if ( j == si->si_cookieState->cs_num ) {
3219                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
3220                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
3221                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
3222                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
3223                         if ( BER_BVISNULL( &first ) ) {
3224                                 first = syncCookie->ctxcsn[i];
3225                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3226                         {
3227                                 first = syncCookie->ctxcsn[i];
3228                         }
3229                         changed = 1;
3230                 }
3231         }
3232         /* Should never happen, ITS#5065 */
3233         if ( BER_BVISNULL( &first ) || !changed ) {
3234                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3235                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3236                 return 0;
3237         }
3238         op->o_bd = si->si_wbe;
3239         slap_queue_csn( op, &first );
3240
3241         op->o_tag = LDAP_REQ_MODIFY;
3242
3243         cb.sc_response = null_callback;
3244         cb.sc_private = si;
3245
3246         op->o_callback = &cb;
3247         op->o_req_dn = si->si_contextdn;
3248         op->o_req_ndn = si->si_contextdn;
3249
3250         /* update contextCSN */
3251         op->o_dont_replicate = 1;
3252
3253         op->orm_modlist = &mod;
3254         op->orm_no_opattrs = 1;
3255         rc = op->o_bd->be_modify( op, &rs_modify );
3256
3257         if ( rs_modify.sr_err == LDAP_NO_SUCH_OBJECT &&
3258                 SLAP_SYNC_SUBENTRY( op->o_bd )) {
3259                 const char      *text;
3260                 char txtbuf[SLAP_TEXT_BUFLEN];
3261                 size_t textlen = sizeof txtbuf;
3262                 Entry *e = slap_create_context_csn_entry( op->o_bd, NULL );
3263                 rc = slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
3264                 op->ora_e = e;
3265                 rc = op->o_bd->be_add( op, &rs_modify );
3266                 if ( e == op->ora_e )
3267                         be_entry_release_w( op, op->ora_e );
3268         }
3269
3270         op->orm_no_opattrs = 0;
3271         op->o_dont_replicate = 0;
3272
3273         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
3274                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
3275                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
3276                 /* If we replaced any old values */
3277                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3278                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
3279                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
3280                                                 &mod.sml_values[i] );
3281                 }
3282                 /* Handle any added values */
3283                 if ( i < mod.sml_numvals ) {
3284                         si->si_cookieState->cs_num = mod.sml_numvals;
3285                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
3286                         free( si->si_cookieState->cs_sids );
3287                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
3288                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
3289                 }
3290
3291                 si->si_cookieState->cs_age++;
3292                 si->si_cookieAge = si->si_cookieState->cs_age;
3293         } else {
3294                 Debug( LDAP_DEBUG_ANY,
3295                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3296                         si->si_ridtxt, rs_modify.sr_err, 0 );
3297         }
3298         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3299
3300         op->o_bd = be;
3301         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3302         BER_BVZERO( &op->o_csn );
3303         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3304         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3305
3306 #ifdef CHECK_CSN
3307         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3308                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3309         }
3310 #endif
3311
3312         return rc;
3313 }
3314
3315 /* Compare the attribute from the old entry to the one in the new
3316  * entry. The Modifications from the new entry will either be left
3317  * in place, or changed to an Add or Delete as needed.
3318  */
3319 static void
3320 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3321         Modifications ***mret, Modifications ***mcur )
3322 {
3323         int i, j;
3324         Modifications *mod, **modtail;
3325
3326         modtail = *mret;
3327
3328         if ( old ) {
3329                 int n, o, nn, no;
3330                 struct berval **adds, **dels;
3331                 /* count old and new */
3332                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3333                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3334
3335                 /* there MUST be both old and new values */
3336                 assert( o != 0 );
3337                 assert( n != 0 );
3338                 j = 0;
3339
3340                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3341                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3342
3343                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3344                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3345
3346                 nn = n; no = o;
3347
3348                 for ( i=0; i<o; i++ ) {
3349                         for ( j=0; j<n; j++ ) {
3350                                 if ( !adds[j] )
3351                                         continue;
3352                                 if ( bvmatch( dels[i], adds[j] ) ) {
3353                                         no--;
3354                                         nn--;
3355                                         adds[j] = NULL;
3356                                         dels[i] = NULL;
3357                                         break;
3358                                 }
3359                         }
3360                 }
3361
3362                 /* Don't delete/add an objectClass, always use the replace op.
3363                  * Modify would fail if provider has replaced entry with a new,
3364                  * and the new explicitly includes a superior of a class that was
3365                  * only included implicitly in the old entry.  Ref ITS#5517.
3366                  *
3367                  * Also use replace op if attr has no equality matching rule.
3368                  * (ITS#5781)
3369                  */
3370                 if ( ( nn || ( no > 0 && no < o ) ) &&
3371                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3372                          !old->a_desc->ad_type->sat_equality ) )
3373                 {
3374                         no = o;
3375                 }
3376
3377                 i = j;
3378                 /* all old values were deleted, just use the replace op */
3379                 if ( no == o ) {
3380                         i = j-1;
3381                 } else if ( no ) {
3382                 /* delete some values */
3383                         mod = ch_malloc( sizeof( Modifications ) );
3384                         mod->sml_op = LDAP_MOD_DELETE;
3385                         mod->sml_flags = 0;
3386                         mod->sml_desc = old->a_desc;
3387                         mod->sml_type = mod->sml_desc->ad_cname;
3388                         mod->sml_numvals = no;
3389                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3390                         if ( old->a_vals != old->a_nvals ) {
3391                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3392                         } else {
3393                                 mod->sml_nvalues = NULL;
3394                         }
3395                         j = 0;
3396                         for ( i = 0; i < o; i++ ) {
3397                                 if ( !dels[i] ) continue;
3398                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3399                                 if ( mod->sml_nvalues ) {
3400                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3401                                 }
3402                                 j++;
3403                         }
3404                         BER_BVZERO( &mod->sml_values[j] );
3405                         if ( mod->sml_nvalues ) {
3406                                 BER_BVZERO( &mod->sml_nvalues[j] );
3407                         }
3408                         *modtail = mod;
3409                         modtail = &mod->sml_next;
3410                         i = j;
3411                 }
3412                 op->o_tmpfree( dels, op->o_tmpmemctx );
3413                 /* some values were added */
3414                 if ( nn && no < o ) {
3415                         mod = ch_malloc( sizeof( Modifications ) );
3416                         mod->sml_op = LDAP_MOD_ADD;
3417                         mod->sml_flags = 0;
3418                         mod->sml_desc = old->a_desc;
3419                         mod->sml_type = mod->sml_desc->ad_cname;
3420                         mod->sml_numvals = nn;
3421                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3422                         if ( old->a_vals != old->a_nvals ) {
3423                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3424                         } else {
3425                                 mod->sml_nvalues = NULL;
3426                         }
3427                         j = 0;
3428                         for ( i = 0; i < n; i++ ) {
3429                                 if ( !adds[i] ) continue;
3430                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3431                                 if ( mod->sml_nvalues ) {
3432                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3433                                 }
3434                                 j++;
3435                         }
3436                         BER_BVZERO( &mod->sml_values[j] );
3437                         if ( mod->sml_nvalues ) {
3438                                 BER_BVZERO( &mod->sml_nvalues[j] );
3439                         }
3440                         *modtail = mod;
3441                         modtail = &mod->sml_next;
3442                         i = j;
3443                 }
3444                 op->o_tmpfree( adds, op->o_tmpmemctx );
3445         } else {
3446                 /* new attr, just use the new mod */
3447                 i = 0;
3448                 j = 1;
3449         }
3450         /* advance to next element */
3451         mod = **mcur;
3452         if ( mod ) {
3453                 if ( i != j ) {
3454                         **mcur = mod->sml_next;
3455                         *modtail = mod;
3456                         modtail = &mod->sml_next;
3457                 } else {
3458                         *mcur = &mod->sml_next;
3459                 }
3460         }
3461         *mret = modtail;
3462 }
3463
3464 /* Generate a set of modifications to change the old entry into the
3465  * new one. On input ml is a list of modifications equivalent to
3466  * the new entry. It will be massaged and the result will be stored
3467  * in mods.
3468  */
3469 void syncrepl_diff_entry( Operation *op, Attribute *old, Attribute *new,
3470         Modifications **mods, Modifications **ml, int is_ctx)
3471 {
3472         Modifications **modtail = mods;
3473
3474         /* We assume that attributes are saved in the same order
3475          * in the remote and local databases. So if we walk through
3476          * the attributeDescriptions one by one they should match in
3477          * lock step. If not, look for an add or delete.
3478          */
3479         while ( old && new )
3480         {
3481                 /* If we've seen this before, use its mod now */
3482                 if ( new->a_flags & SLAP_ATTR_IXADD ) {
3483                         attr_cmp( op, NULL, new, &modtail, &ml );
3484                         new = new->a_next;
3485                         continue;
3486                 }
3487                 /* Skip contextCSN */
3488                 if ( is_ctx && old->a_desc ==
3489                         slap_schema.si_ad_contextCSN ) {
3490                         old = old->a_next;
3491                         continue;
3492                 }
3493
3494                 if ( old->a_desc != new->a_desc ) {
3495                         Modifications *mod;
3496                         Attribute *tmp;
3497
3498                         /* If it's just been re-added later,
3499                          * remember that we've seen it.
3500                          */
3501                         tmp = attr_find( new, old->a_desc );
3502                         if ( tmp ) {
3503                                 tmp->a_flags |= SLAP_ATTR_IXADD;
3504                         } else {
3505                                 /* If it's a new attribute, pull it in.
3506                                  */
3507                                 tmp = attr_find( old, new->a_desc );
3508                                 if ( !tmp ) {
3509                                         attr_cmp( op, NULL, new, &modtail, &ml );
3510                                         new = new->a_next;
3511                                         continue;
3512                                 }
3513                                 /* Delete old attr */
3514                                 mod = ch_malloc( sizeof( Modifications ) );
3515                                 mod->sml_op = LDAP_MOD_DELETE;
3516                                 mod->sml_flags = 0;
3517                                 mod->sml_desc = old->a_desc;
3518                                 mod->sml_type = mod->sml_desc->ad_cname;
3519                                 mod->sml_numvals = 0;
3520                                 mod->sml_values = NULL;
3521                                 mod->sml_nvalues = NULL;
3522                                 *modtail = mod;
3523                                 modtail = &mod->sml_next;
3524                         }
3525                         old = old->a_next;
3526                         continue;
3527                 }
3528                 /* kludge - always update modifiersName so that it
3529                  * stays co-located with the other mod opattrs. But only
3530                  * if we know there are other valid mods.
3531                  */
3532                 if ( *mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3533                         old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3534                         attr_cmp( op, NULL, new, &modtail, &ml );
3535                 else
3536                         attr_cmp( op, old, new, &modtail, &ml );
3537                 new = new->a_next;
3538                 old = old->a_next;
3539         }
3540         *modtail = *ml;
3541         *ml = NULL;
3542 }
3543
3544 static int
3545 dn_callback(
3546         Operation*      op,
3547         SlapReply*      rs )
3548 {
3549         dninfo *dni = op->o_callback->sc_private;
3550
3551         if ( rs->sr_type == REP_SEARCH ) {
3552                 if ( !BER_BVISNULL( &dni->dn ) ) {
3553                         Debug( LDAP_DEBUG_ANY,
3554                                 "dn_callback : consistency error - "
3555                                 "entryUUID is not unique\n", 0, 0, 0 );
3556                 } else {
3557                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3558                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3559                         /* If there is a new entry, see if it differs from the old.
3560                          * We compare the non-normalized values so that cosmetic changes
3561                          * in the provider are always propagated.
3562                          */
3563                         if ( dni->new_entry ) {
3564                                 Modifications **modtail, **ml;
3565                                 Attribute *old, *new;
3566                                 struct berval old_rdn, new_rdn;
3567                                 struct berval old_p, new_p;
3568                                 int is_ctx, new_sup = 0;
3569
3570                                 /* If old entry is not a glue entry, make sure new entry
3571                                  * is actually newer than old entry
3572                                  */
3573                                 if ( !is_entry_glue( rs->sr_entry )) {
3574                                         old = attr_find( rs->sr_entry->e_attrs,
3575                                                 slap_schema.si_ad_entryCSN );
3576                                         new = attr_find( dni->new_entry->e_attrs,
3577                                                 slap_schema.si_ad_entryCSN );
3578                                         if ( new && old ) {
3579                                                 int rc;
3580                                                 ber_len_t len = old->a_vals[0].bv_len;
3581                                                 if ( len > new->a_vals[0].bv_len )
3582                                                         len = new->a_vals[0].bv_len;
3583                                                 rc = memcmp( old->a_vals[0].bv_val,
3584                                                         new->a_vals[0].bv_val, len );
3585                                                 if ( rc > 0 ) {
3586                                                         Debug( LDAP_DEBUG_SYNC,
3587                                                                 "dn_callback : new entry is older than ours "
3588                                                                 "%s ours %s, new %s\n",
3589                                                                 rs->sr_entry->e_name.bv_val,
3590                                                                 old->a_vals[0].bv_val,
3591                                                                 new->a_vals[0].bv_val );
3592                                                         return LDAP_SUCCESS;
3593                                                 } else if ( rc == 0 ) {
3594                                                         Debug( LDAP_DEBUG_SYNC,
3595                                                                 "dn_callback : entries have identical CSN "
3596                                                                 "%s %s\n",
3597                                                                 rs->sr_entry->e_name.bv_val,
3598                                                                 old->a_vals[0].bv_val, 0 );
3599                                                         return LDAP_SUCCESS;
3600                                                 }
3601                                         }
3602                                 }
3603
3604                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3605                                         &op->o_bd->be_nsuffix[0] );
3606
3607                                 /* Did the DN change?
3608                                  * case changes in the parent are ignored,
3609                                  * we only want to know if the RDN was
3610                                  * actually changed.
3611                                  */
3612                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3613                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3614                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3615                                 dnParent( &dni->new_entry->e_nname, &new_p );
3616
3617                                 new_sup = !dn_match( &old_p, &new_p );
3618                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3619                                 {
3620                                         struct berval oldRDN, oldVal;
3621                                         AttributeDescription *ad = NULL;
3622                                         int oldpos, newpos;
3623                                         Attribute *a;
3624
3625                                         dni->renamed = 1;
3626                                         if ( new_sup )
3627                                                 dni->nnewSup = new_p;
3628
3629                                         /* See if the oldRDN was deleted */
3630                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3631                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3632                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3633                                                 oldRDN.bv_val );
3634                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3635                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3636                                         dni->oldDesc = ad;
3637                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3638                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3639                                         dni->oldNattr = a;
3640                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3641                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3642                                         if ( !a || oldpos != newpos || attr_valfind( a,
3643                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3644                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3645                                                 SLAP_MR_VALUE_OF_SYNTAX,
3646                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3647                                         {
3648                                                 dni->delOldRDN = 1;
3649                                         }
3650                                         /* Get the newRDN's desc */
3651                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3652                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3653                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3654                                         ad = NULL;
3655                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3656                                         dni->newDesc = ad;
3657
3658                                         /* A ModDN has happened, but in Refresh mode other
3659                                          * changes may have occurred before we picked it up.
3660                                          * So fallthru to regular Modify processing.
3661                                          */
3662                                 }
3663
3664                                 syncrepl_diff_entry( op, rs->sr_entry->e_attrs,
3665                                         dni->new_entry->e_attrs, &dni->mods, dni->modlist,
3666                                         is_ctx );
3667                         }
3668                 }
3669         } else if ( rs->sr_type == REP_RESULT ) {
3670                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3671                         Debug( LDAP_DEBUG_ANY,
3672                                 "dn_callback : consistency error - "
3673                                 "entryUUID is not unique\n", 0, 0, 0 );
3674                 }
3675         }
3676
3677         return LDAP_SUCCESS;
3678 }
3679
3680 static int
3681 nonpresent_callback(
3682         Operation*      op,
3683         SlapReply*      rs )
3684 {
3685         syncinfo_t *si = op->o_callback->sc_private;
3686         Attribute *a;
3687         int count = 0;
3688         struct berval* present_uuid = NULL;
3689         struct nonpresent_entry *np_entry;
3690
3691         if ( rs->sr_type == REP_RESULT ) {
3692                 count = avl_free( si->si_presentlist, ch_free );
3693                 si->si_presentlist = NULL;
3694
3695         } else if ( rs->sr_type == REP_SEARCH ) {
3696                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3697                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3698
3699                         if ( a ) {
3700                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3701                                         syncuuid_cmp );
3702                         }
3703
3704                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3705                                 char buf[sizeof("rid=999 non")];
3706
3707                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3708                                         present_uuid ? "" : "non" );
3709
3710                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3711                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3712                         }
3713
3714                         if ( a == NULL ) return 0;
3715                 }
3716
3717                 if ( present_uuid == NULL ) {
3718                         np_entry = (struct nonpresent_entry *)
3719                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3720                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3721                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3722                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3723
3724                 } else {
3725                         avl_delete( &si->si_presentlist,
3726                                 &a->a_nvals[0], syncuuid_cmp );
3727                         ch_free( present_uuid );
3728                 }
3729         }
3730         return LDAP_SUCCESS;
3731 }
3732
3733 static int
3734 null_callback(
3735         Operation*      op,
3736         SlapReply*      rs )
3737 {
3738         if ( rs->sr_err != LDAP_SUCCESS &&
3739                 rs->sr_err != LDAP_REFERRAL &&
3740                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3741                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3742                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3743         {
3744                 Debug( LDAP_DEBUG_ANY,
3745                         "null_callback : error code 0x%x\n",
3746                         rs->sr_err, 0, 0 );
3747         }
3748         return LDAP_SUCCESS;
3749 }
3750
3751 static struct berval *
3752 slap_uuidstr_from_normalized(
3753         struct berval* uuidstr,
3754         struct berval* normalized,
3755         void *ctx )
3756 {
3757 #if 0
3758         struct berval *new;
3759         unsigned char nibble;
3760         int i, d = 0;
3761
3762         if ( normalized == NULL ) return NULL;
3763         if ( normalized->bv_len != 16 ) return NULL;
3764
3765         if ( uuidstr ) {
3766                 new = uuidstr;
3767         } else {
3768                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3769                 if ( new == NULL ) {
3770                         return NULL;
3771                 }
3772         }
3773
3774         new->bv_len = 36;
3775
3776         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3777                 if ( new != uuidstr ) {
3778                         slap_sl_free( new, ctx );
3779                 }
3780                 return NULL;
3781         }
3782
3783         for ( i = 0; i < 16; i++ ) {
3784                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3785                         new->bv_val[(i<<1)+d] = '-';
3786                         d += 1;
3787                 }
3788
3789                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3790                 if ( nibble < 10 ) {
3791                         new->bv_val[(i<<1)+d] = nibble + '0';
3792                 } else {
3793                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3794                 }
3795
3796                 nibble = (normalized->bv_val[i]) & 0xF;
3797                 if ( nibble < 10 ) {
3798                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3799                 } else {
3800                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3801                 }
3802         }
3803
3804         new->bv_val[new->bv_len] = '\0';
3805         return new;
3806 #endif
3807
3808         struct berval   *new;
3809         int             rc = 0;
3810
3811         if ( normalized == NULL ) return NULL;
3812         if ( normalized->bv_len != 16 ) return NULL;
3813
3814         if ( uuidstr ) {
3815                 new = uuidstr;
3816
3817         } else {
3818                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3819                 if ( new == NULL ) {
3820                         return NULL;
3821                 }
3822         }
3823
3824         new->bv_len = 36;
3825
3826         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3827                 rc = 1;
3828                 goto done;
3829         }
3830
3831         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3832                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3833
3834 done:;
3835         if ( rc == -1 ) {
3836                 if ( new != NULL ) {
3837                         if ( new->bv_val != NULL ) {
3838                                 slap_sl_free( new->bv_val, ctx );
3839                         }
3840
3841                         if ( new != uuidstr ) {
3842                                 slap_sl_free( new, ctx );
3843                         }
3844                 }
3845                 new = NULL;
3846
3847         } else {
3848                 new->bv_len = rc;
3849         }
3850
3851         return new;
3852 }
3853
3854 static int
3855 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3856 {
3857         const struct berval *uuid1 = v_uuid1;
3858         const struct berval *uuid2 = v_uuid2;
3859         int rc = uuid1->bv_len - uuid2->bv_len;
3860         if ( rc ) return rc;
3861         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3862 }
3863
3864 void
3865 syncinfo_free( syncinfo_t *sie, int free_all )
3866 {
3867         syncinfo_t *si_next;
3868
3869         Debug( LDAP_DEBUG_TRACE, "syncinfo_free: %s\n",
3870                 sie->si_ridtxt, 0, 0 );
3871
3872         do {
3873                 si_next = sie->si_next;
3874
3875                 if ( sie->si_ld ) {
3876                         if ( sie->si_conn ) {
3877                                 connection_client_stop( sie->si_conn );
3878                                 sie->si_conn = NULL;
3879                         }
3880                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3881                 }
3882
3883                 if ( sie->si_re ) {
3884                         struct re_s             *re = sie->si_re;
3885                         sie->si_re = NULL;
3886
3887                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3888                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
3889                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
3890                         ldap_pvt_runqueue_remove( &slapd_rq, re );
3891                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3892                 }
3893
3894                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3895
3896                 bindconf_free( &sie->si_bindconf );
3897
3898                 if ( sie->si_filterstr.bv_val ) {
3899                         ch_free( sie->si_filterstr.bv_val );
3900                 }
3901                 if ( sie->si_filter ) {
3902                         filter_free( sie->si_filter );
3903                 }
3904                 if ( sie->si_logfilterstr.bv_val ) {
3905                         ch_free( sie->si_logfilterstr.bv_val );
3906                 }
3907                 if ( sie->si_base.bv_val ) {
3908                         ch_free( sie->si_base.bv_val );
3909                 }
3910                 if ( sie->si_logbase.bv_val ) {
3911                         ch_free( sie->si_logbase.bv_val );
3912                 }
3913                 if ( sie->si_be && SLAP_SYNC_SUBENTRY( sie->si_be )) {
3914                         ch_free( sie->si_contextdn.bv_val );
3915                 }
3916                 if ( sie->si_attrs ) {
3917                         int i = 0;
3918                         while ( sie->si_attrs[i] != NULL ) {
3919                                 ch_free( sie->si_attrs[i] );
3920                                 i++;
3921                         }
3922                         ch_free( sie->si_attrs );
3923                 }
3924                 if ( sie->si_exattrs ) {
3925                         int i = 0;
3926                         while ( sie->si_exattrs[i] != NULL ) {
3927                                 ch_free( sie->si_exattrs[i] );
3928                                 i++;
3929                         }
3930                         ch_free( sie->si_exattrs );
3931                 }
3932                 if ( sie->si_anlist ) {
3933                         int i = 0;
3934                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3935                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3936                                 i++;
3937                         }
3938                         ch_free( sie->si_anlist );
3939                 }
3940                 if ( sie->si_exanlist ) {
3941                         int i = 0;
3942                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3943                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3944                                 i++;
3945                         }
3946                         ch_free( sie->si_exanlist );
3947                 }
3948                 if ( sie->si_retryinterval ) {
3949                         ch_free( sie->si_retryinterval );
3950                 }
3951                 if ( sie->si_retrynum ) {
3952                         ch_free( sie->si_retrynum );
3953                 }
3954                 if ( sie->si_retrynum_init ) {
3955                         ch_free( sie->si_retrynum_init );
3956                 }
3957                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3958                 if ( sie->si_presentlist ) {
3959                     avl_free( sie->si_presentlist, ch_free );
3960                 }
3961                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3962                         struct nonpresent_entry* npe;
3963                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3964                         LDAP_LIST_REMOVE( npe, npe_link );
3965                         if ( npe->npe_name ) {
3966                                 if ( npe->npe_name->bv_val ) {
3967                                         ch_free( npe->npe_name->bv_val );
3968                                 }
3969                                 ch_free( npe->npe_name );
3970                         }
3971                         if ( npe->npe_nname ) {
3972                                 if ( npe->npe_nname->bv_val ) {
3973                                         ch_free( npe->npe_nname->bv_val );
3974                                 }
3975                                 ch_free( npe->npe_nname );
3976                         }
3977                         ch_free( npe );
3978                 }
3979                 if ( sie->si_cookieState ) {
3980                         sie->si_cookieState->cs_ref--;
3981                         if ( !sie->si_cookieState->cs_ref ) {
3982                                 ch_free( sie->si_cookieState->cs_sids );
3983                                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3984                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3985                                 ch_free( sie->si_cookieState->cs_psids );
3986                                 ber_bvarray_free( sie->si_cookieState->cs_pvals );
3987                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_pmutex );
3988                                 ch_free( sie->si_cookieState );
3989                         }
3990                 }
3991                 ch_free( sie );
3992                 sie = si_next;
3993         } while ( free_all && si_next );
3994 }
3995
3996 #ifdef ENABLE_REWRITE
3997 static int
3998 config_suffixm( ConfigArgs *c, syncinfo_t *si )
3999 {
4000         char *argvEngine[] = { "rewriteEngine", "on", NULL };
4001         char *argvContext[] = { "rewriteContext", SUFFIXM_CTX, NULL };
4002         char *argvRule[] = { "rewriteRule", NULL, si->si_suffixm.bv_val, ":", NULL };
4003         char *vnc;
4004         int rc;
4005
4006         if ( si->si_rewrite )
4007                 rewrite_info_delete( &si->si_rewrite );
4008         si->si_rewrite = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
4009
4010         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvEngine );
4011         if ( rc != LDAP_SUCCESS )
4012                 return rc;
4013
4014         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvContext );
4015         if ( rc != LDAP_SUCCESS )
4016                 return rc;
4017
4018         vnc = ch_malloc( si->si_base.bv_len + 2 );
4019         lutil_strcopy( lutil_strcopy( vnc, si->si_base.bv_val ), "$" );
4020
4021         argvRule[1] = vnc;
4022         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 4, argvRule );
4023         ch_free( vnc );
4024         return rc;
4025 }
4026 #endif
4027
4028 /* NOTE: used & documented in slapd.conf(5) */
4029 #define IDSTR                   "rid"
4030 #define PROVIDERSTR             "provider"
4031 #define SCHEMASTR               "schemachecking"
4032 #define FILTERSTR               "filter"
4033 #define SEARCHBASESTR           "searchbase"
4034 #define SCOPESTR                "scope"
4035 #define ATTRSONLYSTR            "attrsonly"
4036 #define ATTRSSTR                "attrs"
4037 #define TYPESTR                 "type"
4038 #define INTERVALSTR             "interval"
4039 #define RETRYSTR                "retry"
4040 #define SLIMITSTR               "sizelimit"
4041 #define TLIMITSTR               "timelimit"
4042 #define SYNCDATASTR             "syncdata"
4043 #define LOGBASESTR              "logbase"
4044 #define LOGFILTERSTR    "logfilter"
4045 #define SUFFIXMSTR              "suffixmassage"
4046
4047 /* FIXME: undocumented */
4048 #define EXATTRSSTR              "exattrs"
4049 #define MANAGEDSAITSTR          "manageDSAit"
4050
4051 /* mandatory */
4052 enum {
4053         GOT_RID                 = 0x00000001U,
4054         GOT_PROVIDER            = 0x00000002U,
4055         GOT_SCHEMACHECKING      = 0x00000004U,
4056         GOT_FILTER              = 0x00000008U,
4057         GOT_SEARCHBASE          = 0x00000010U,
4058         GOT_SCOPE               = 0x00000020U,
4059         GOT_ATTRSONLY           = 0x00000040U,
4060         GOT_ATTRS               = 0x00000080U,
4061         GOT_TYPE                = 0x00000100U,
4062         GOT_INTERVAL            = 0x00000200U,
4063         GOT_RETRY               = 0x00000400U,
4064         GOT_SLIMIT              = 0x00000800U,
4065         GOT_TLIMIT              = 0x00001000U,
4066         GOT_SYNCDATA            = 0x00002000U,
4067         GOT_LOGBASE             = 0x00004000U,
4068         GOT_LOGFILTER           = 0x00008000U,
4069         GOT_EXATTRS             = 0x00010000U,
4070         GOT_MANAGEDSAIT         = 0x00020000U,
4071         GOT_BINDCONF            = 0x00040000U,
4072         GOT_SUFFIXM             = 0x00080000U,
4073
4074 /* check */
4075         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
4076 };
4077
4078 static slap_verbmasks datamodes[] = {
4079         { BER_BVC("default"), SYNCDATA_DEFAULT },
4080         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
4081         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
4082         { BER_BVNULL, 0 }
4083 };
4084
4085 static int
4086 parse_syncrepl_retry(
4087         ConfigArgs      *c,
4088         char            *arg,
4089         syncinfo_t      *si )
4090 {
4091         char **retry_list;
4092         int j, k, n;
4093         int use_default = 0;
4094
4095         char *val = arg + STRLENOF( RETRYSTR "=" );
4096         if ( strcasecmp( val, "undefined" ) == 0 ) {
4097                 val = "3600 +";
4098                 use_default = 1;
4099         }
4100
4101         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
4102         retry_list[0] = NULL;
4103
4104         slap_str2clist( &retry_list, val, " ,\t" );
4105
4106         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
4107         n = k / 2;
4108         if ( k % 2 ) {
4109                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4110                         "Error: incomplete syncrepl retry list" );
4111                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4112                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
4113                         ch_free( retry_list[k] );
4114                 }
4115                 ch_free( retry_list );
4116                 return 1;
4117         }
4118         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
4119         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
4120         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
4121         for ( j = 0; j < n; j++ ) {
4122                 unsigned long   t;
4123                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
4124                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4125                                 "Error: invalid retry interval \"%s\" (#%d)",
4126                                 retry_list[j*2], j );
4127                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4128                         /* do some cleanup */
4129                         return 1;
4130                 }
4131                 si->si_retryinterval[j] = (time_t)t;
4132                 if ( *retry_list[j*2+1] == '+' ) {
4133                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
4134                         si->si_retrynum[j] = RETRYNUM_FOREVER;
4135                         j++;
4136                         break;
4137                 } else {
4138                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
4139                                         || si->si_retrynum_init[j] <= 0 )
4140                         {
4141                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4142                                         "Error: invalid initial retry number \"%s\" (#%d)",
4143                                         retry_list[j*2+1], j );
4144                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4145                                 /* do some cleanup */
4146                                 return 1;
4147                         }
4148                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
4149                                         || si->si_retrynum[j] <= 0 )
4150                         {
4151                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4152                                         "Error: invalid retry number \"%s\" (#%d)",
4153                                         retry_list[j*2+1], j );
4154                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4155                                 /* do some cleanup */
4156                                 return 1;
4157                         }
4158                 }
4159         }
4160         if ( j < 1 || si->si_retrynum_init[j-1] != RETRYNUM_FOREVER ) {
4161                 Debug( LDAP_DEBUG_CONFIG,
4162                         "%s: syncrepl will eventually stop retrying; the \"retry\" parameter should end with a '+'.\n",
4163                         c->log, 0, 0 );
4164         }
4165
4166         si->si_retrynum_init[j] = RETRYNUM_TAIL;
4167         si->si_retrynum[j] = RETRYNUM_TAIL;
4168         si->si_retryinterval[j] = 0;
4169
4170         for ( k = 0; retry_list && retry_list[k]; k++ ) {
4171                 ch_free( retry_list[k] );
4172         }
4173         ch_free( retry_list );
4174         if ( !use_default ) {
4175                 si->si_got |= GOT_RETRY;
4176         }
4177
4178         return 0;
4179 }
4180
4181 static int
4182 parse_syncrepl_line(
4183         ConfigArgs      *c,
4184         syncinfo_t      *si )
4185 {
4186         int     i;
4187         char    *val;
4188
4189         for ( i = 1; i < c->argc; i++ ) {
4190                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
4191                                         STRLENOF( IDSTR "=" ) ) )
4192                 {
4193                         int tmp;
4194                         /* '\0' string terminator accounts for '=' */
4195                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
4196                         if ( lutil_atoi( &tmp, val ) != 0 ) {
4197                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4198                                         "Error: parse_syncrepl_line: "
4199                                         "unable to parse syncrepl id \"%s\"", val );
4200                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4201                                 return -1;
4202                         }
4203                         if ( tmp > SLAP_SYNC_RID_MAX || tmp < 0 ) {
4204                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4205                                         "Error: parse_syncrepl_line: "
4206                                         "syncrepl id %d is out of range [0..%d]", tmp, SLAP_SYNC_RID_MAX );
4207                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4208                                 return -1;
4209                         }
4210                         si->si_rid = tmp;
4211                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
4212                         si->si_got |= GOT_RID;
4213                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
4214                                         STRLENOF( PROVIDERSTR "=" ) ) )
4215                 {
4216                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
4217                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
4218 #ifdef HAVE_TLS
4219                         if ( ldap_is_ldaps_url( val ))
4220                                 si->si_bindconf.sb_tls_do_init = 1;
4221 #endif
4222                         si->si_got |= GOT_PROVIDER;
4223                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
4224                                         STRLENOF( SCHEMASTR "=" ) ) )
4225                 {
4226                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
4227                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
4228                                 si->si_schemachecking = 1;
4229                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
4230                                 si->si_schemachecking = 0;
4231                         } else {
4232                                 si->si_schemachecking = 1;
4233                         }
4234                         si->si_got |= GOT_SCHEMACHECKING;
4235                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
4236                                         STRLENOF( FILTERSTR "=" ) ) )
4237                 {
4238                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
4239                         if ( si->si_filterstr.bv_val )
4240                                 ch_free( si->si_filterstr.bv_val );
4241                         ber_str2bv( val, 0, 1, &si->si_filterstr );
4242                         si->si_got |= GOT_FILTER;
4243                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
4244                                         STRLENOF( LOGFILTERSTR "=" ) ) )
4245                 {
4246                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
4247                         if ( si->si_logfilterstr.bv_val )
4248                                 ch_free( si->si_logfilterstr.bv_val );
4249                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
4250                         si->si_got |= GOT_LOGFILTER;
4251                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
4252                                         STRLENOF( SEARCHBASESTR "=" ) ) )
4253                 {
4254                         struct berval   bv;
4255                         int             rc;
4256
4257                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
4258                         if ( si->si_base.bv_val ) {
4259                                 ch_free( si->si_base.bv_val );
4260                         }
4261                         ber_str2bv( val, 0, 0, &bv );
4262                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
4263                         if ( rc != LDAP_SUCCESS ) {
4264                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4265                                         "Invalid base DN \"%s\": %d (%s)",
4266                                         val, rc, ldap_err2string( rc ) );
4267                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4268                                 return -1;
4269                         }
4270                         si->si_got |= GOT_SEARCHBASE;
4271 #ifdef ENABLE_REWRITE
4272                 } else if ( !strncasecmp( c->argv[ i ], SUFFIXMSTR "=",
4273                                         STRLENOF( SUFFIXMSTR "=" ) ) )
4274                 {
4275                         struct berval   bv;
4276                         int             rc;
4277
4278                         val = c->argv[ i ] + STRLENOF( SUFFIXMSTR "=" );
4279                         if ( si->si_suffixm.bv_val ) {
4280                                 ch_free( si->si_suffixm.bv_val );
4281                         }
4282                         ber_str2bv( val, 0, 0, &bv );
4283                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_suffixm, NULL );
4284                         if ( rc != LDAP_SUCCESS ) {
4285                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4286                                         "Invalid massage DN \"%s\": %d (%s)",
4287                                         val, rc, ldap_err2string( rc ) );
4288                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4289                                 return -1;
4290                         }
4291                         if ( !be_issubordinate( c->be, &si->si_suffixm )) {
4292                                 ch_free( si->si_suffixm.bv_val );
4293                                 BER_BVZERO( &si->si_suffixm );
4294                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4295                                         "Massage DN \"%s\" is not within the database naming context",
4296                                         val );
4297                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4298                                 return -1;
4299                         }
4300                         si->si_got |= GOT_SUFFIXM;
4301 #endif
4302                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
4303                                         STRLENOF( LOGBASESTR "=" ) ) )
4304                 {
4305                         struct berval   bv;
4306                         int             rc;
4307
4308                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
4309                         if ( si->si_logbase.bv_val ) {
4310                                 ch_free( si->si_logbase.bv_val );
4311                         }
4312                         ber_str2bv( val, 0, 0, &bv );
4313                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
4314                         if ( rc != LDAP_SUCCESS ) {
4315                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4316                                         "Invalid logbase DN \"%s\": %d (%s)",
4317                                         val, rc, ldap_err2string( rc ) );
4318                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4319                                 return -1;
4320                         }
4321                         si->si_got |= GOT_LOGBASE;
4322                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
4323                                         STRLENOF( SCOPESTR "=" ) ) )
4324                 {
4325                         int j;
4326                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
4327                         j = ldap_pvt_str2scope( val );
4328                         if ( j < 0 ) {
4329                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4330                                         "Error: parse_syncrepl_line: "
4331                                         "unknown scope \"%s\"", val);
4332                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4333                                 return -1;
4334                         }
4335                         si->si_scope = j;
4336                         si->si_got |= GOT_SCOPE;
4337                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
4338                                         STRLENOF( ATTRSONLYSTR ) ) )
4339                 {
4340                         si->si_attrsonly = 1;
4341                         si->si_got |= GOT_ATTRSONLY;
4342                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
4343                                         STRLENOF( ATTRSSTR "=" ) ) )
4344                 {
4345                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
4346                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4347                                 char *attr_fname;
4348                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4349                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
4350                                 if ( si->si_anlist == NULL ) {
4351                                         ch_free( attr_fname );
4352                                         return -1;
4353                                 }
4354                                 si->si_anfile = attr_fname;
4355                         } else {
4356                                 char *str, *s, *next;
4357                                 const char *delimstr = " ,\t";
4358                                 str = ch_strdup( val );
4359                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
4360                                                 s != NULL;
4361                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
4362                                 {
4363                                         if ( strlen(s) == 1 && *s == '*' ) {
4364                                                 si->si_allattrs = 1;
4365                                                 val[ s - str ] = delimstr[0];
4366                                         }
4367                                         if ( strlen(s) == 1 && *s == '+' ) {
4368                                                 si->si_allopattrs = 1;
4369                                                 val [ s - str ] = delimstr[0];
4370                                         }
4371                                 }
4372                                 ch_free( str );
4373                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4374                                 if ( si->si_anlist == NULL ) {
4375                                         return -1;
4376                                 }
4377                         }
4378                         si->si_got |= GOT_ATTRS;
4379                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4380                                         STRLENOF( EXATTRSSTR "=" ) ) )
4381                 {
4382                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4383                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4384                                 char *attr_fname;
4385                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4386                                 si->si_exanlist = file2anlist(
4387                                         si->si_exanlist, attr_fname, " ,\t" );
4388                                 if ( si->si_exanlist == NULL ) {
4389                                         ch_free( attr_fname );
4390                                         return -1;
4391                                 }
4392                                 ch_free( attr_fname );
4393                         } else {
4394                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4395                                 if ( si->si_exanlist == NULL ) {
4396                                         return -1;
4397                                 }
4398                         }
4399                         si->si_got |= GOT_EXATTRS;
4400                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4401                                         STRLENOF( TYPESTR "=" ) ) )
4402                 {
4403                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4404                         if ( !strncasecmp( val, "refreshOnly",
4405                                                 STRLENOF("refreshOnly") ) )
4406                         {
4407                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4408                         } else if ( !strncasecmp( val, "refreshAndPersist",
4409                                                 STRLENOF("refreshAndPersist") ) )
4410                         {
4411                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4412                                 si->si_interval = 60;
4413                         } else {
4414                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4415                                         "Error: parse_syncrepl_line: "
4416                                         "unknown sync type \"%s\"", val);
4417                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4418                                 return -1;
4419                         }
4420                         si->si_got |= GOT_TYPE;
4421                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4422                                         STRLENOF( INTERVALSTR "=" ) ) )
4423                 {
4424                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4425                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4426                                 si->si_interval = 0;
4427                         } else if ( strchr( val, ':' ) != NULL ) {
4428                                 char *next, *ptr = val;
4429                                 int dd, hh, mm, ss;
4430
4431                                 dd = strtol( ptr, &next, 10 );
4432                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4433                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4434                                                 "Error: parse_syncrepl_line: "
4435                                                 "invalid interval \"%s\", unable to parse days", val );
4436                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4437                                         return -1;
4438                                 }
4439                                 ptr = next + 1;
4440                                 hh = strtol( ptr, &next, 10 );
4441                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4442                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4443                                                 "Error: parse_syncrepl_line: "
4444                                                 "invalid interval \"%s\", unable to parse hours", val );
4445                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4446                                         return -1;
4447                                 }
4448                                 ptr = next + 1;
4449                                 mm = strtol( ptr, &next, 10 );
4450                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4451                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4452                                                 "Error: parse_syncrepl_line: "
4453                                                 "invalid interval \"%s\", unable to parse minutes", val );
4454                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4455                                         return -1;
4456                                 }
4457                                 ptr = next + 1;
4458                                 ss = strtol( ptr, &next, 10 );
4459                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4460                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4461                                                 "Error: parse_syncrepl_line: "
4462                                                 "invalid interval \"%s\", unable to parse seconds", val );
4463                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4464                                         return -1;
4465                                 }
4466                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4467                         } else {
4468                                 unsigned long   t;
4469
4470                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4471                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4472                                                 "Error: parse_syncrepl_line: "
4473                                                 "invalid interval \"%s\"", val );
4474                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4475                                         return -1;
4476                                 }
4477                                 si->si_interval = (time_t)t;
4478                         }
4479                         if ( si->si_interval < 0 ) {
4480                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4481                                         "Error: parse_syncrepl_line: "
4482                                         "invalid interval \"%ld\"",
4483                                         (long) si->si_interval);
4484                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4485                                 return -1;
4486                         }
4487                         si->si_got |= GOT_INTERVAL;
4488                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4489                                         STRLENOF( RETRYSTR "=" ) ) )
4490                 {
4491                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4492                                 return 1;
4493                         }
4494                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4495                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4496                 {
4497                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4498                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4499                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4500                         {
4501                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4502                                         "invalid manageDSAit value \"%s\".\n",
4503                                         val );
4504                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4505                                 return 1;
4506                         }
4507                         si->si_got |= GOT_MANAGEDSAIT;
4508                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4509                                         STRLENOF( SLIMITSTR "=") ) )
4510                 {
4511                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4512                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4513                                 si->si_slimit = 0;
4514
4515                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4516                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4517                                         "invalid size limit value \"%s\".\n",
4518                                         val );
4519                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4520                                 return 1;
4521                         }
4522                         si->si_got |= GOT_SLIMIT;
4523                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4524                                         STRLENOF( TLIMITSTR "=" ) ) )
4525                 {
4526                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4527                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4528                                 si->si_tlimit = 0;
4529
4530                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4531                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4532                                         "invalid time limit value \"%s\".\n",
4533                                         val );
4534                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4535                                 return 1;
4536                         }
4537                         si->si_got |= GOT_TLIMIT;
4538                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4539                                         STRLENOF( SYNCDATASTR "=" ) ) )
4540                 {
4541                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4542                         si->si_syncdata = verb_to_mask( val, datamodes );
4543                         si->si_got |= GOT_SYNCDATA;
4544                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4545                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4546                                 "Error: parse_syncrepl_line: "
4547                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4548                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4549                         return -1;
4550                 }
4551                 si->si_got |= GOT_BINDCONF;
4552         }
4553
4554         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4555                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4556                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4557                         si->si_got & GOT_RID ? "" : " "IDSTR,
4558                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4559                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4560                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4561                 return -1;
4562         }
4563
4564         if ( !be_issubordinate( c->be, &si->si_base ) && !( si->si_got & GOT_SUFFIXM )) {
4565                 ch_free( si->si_base.bv_val );
4566                 BER_BVZERO( &si->si_base );
4567                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4568                         "Base DN \"%s\" is not within the database naming context",
4569                         val );
4570                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4571                 return -1;
4572         }
4573
4574 #ifdef ENABLE_REWRITE
4575         if ( si->si_got & GOT_SUFFIXM ) {
4576                 if (config_suffixm( c, si )) {
4577                         ch_free( si->si_suffixm.bv_val );
4578                         BER_BVZERO( &si->si_suffixm );
4579                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4580                                 "Error configuring rewrite engine" );
4581                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4582                         return -1;
4583                 }
4584         }
4585 #endif
4586
4587         if ( !( si->si_got & GOT_RETRY ) ) {
4588                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4589                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4590                 if ( si->si_retryinterval == NULL ) {
4591                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4592                                 return 1;
4593                         }
4594                 }
4595         }
4596
4597         si->si_filter = str2filter( si->si_filterstr.bv_val );
4598         if ( si->si_filter == NULL ) {
4599                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": unable to parse filter=\"%s\"\n",
4600                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", si->si_filterstr.bv_val );
4601                 return 1;
4602         }
4603
4604         return 0;
4605 }
4606
4607 static int
4608 add_syncrepl(
4609         ConfigArgs *c )
4610 {
4611         syncinfo_t *si;
4612         int     rc = 0;
4613
4614         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4615                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4616                         "operations required for syncrepl", c->be->be_type );
4617                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4618                 return 1;
4619         }
4620         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4621                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4622                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4623                 return 1;
4624         }
4625         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4626
4627         if ( si == NULL ) {
4628                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4629                 return 1;
4630         }
4631
4632         si->si_bindconf.sb_tls = SB_TLS_OFF;
4633         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4634         si->si_schemachecking = 0;
4635         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4636                 &si->si_filterstr );
4637         si->si_base.bv_val = NULL;
4638         si->si_scope = LDAP_SCOPE_SUBTREE;
4639         si->si_attrsonly = 0;
4640         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4641         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4642         si->si_attrs = NULL;
4643         si->si_allattrs = 0;
4644         si->si_allopattrs = 0;
4645         si->si_exattrs = NULL;
4646         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4647         si->si_interval = 86400;
4648         si->si_retryinterval = NULL;
4649         si->si_retrynum_init = NULL;
4650         si->si_retrynum = NULL;
4651         si->si_manageDSAit = 0;
4652         si->si_tlimit = 0;
4653         si->si_slimit = 0;
4654
4655         si->si_presentlist = NULL;
4656         LDAP_LIST_INIT( &si->si_nonpresentlist );
4657         ldap_pvt_thread_mutex_init( &si->si_mutex );
4658
4659         rc = parse_syncrepl_line( c, si );
4660
4661         if ( rc == 0 ) {
4662                 LDAPURLDesc *lud;
4663
4664                 /* Must be LDAPv3 because we need controls */
4665                 switch ( si->si_bindconf.sb_version ) {
4666                 case 0:
4667                         /* not explicitly set */
4668                         si->si_bindconf.sb_version = LDAP_VERSION3;
4669                         break;
4670                 case 3:
4671                         /* explicitly set */
4672                         break;
4673                 default:
4674                         Debug( LDAP_DEBUG_ANY,
4675                                 "version %d incompatible with syncrepl\n",
4676                                 si->si_bindconf.sb_version, 0, 0 );
4677                         syncinfo_free( si, 0 );
4678                         return 1;
4679                 }
4680
4681                 if ( ldap_url_parse( si->si_bindconf.sb_uri.bv_val, &lud )) {
4682                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4683                                 "<%s> invalid URL", c->argv[0] );
4684                         Debug( LDAP_DEBUG_ANY, "%s: %s %s\n",
4685                                 c->log, c->cr_msg, si->si_bindconf.sb_uri.bv_val );
4686                         return 1;
4687                 }
4688
4689                 si->si_be = c->be;
4690                 if ( slapMode & SLAP_SERVER_MODE ) {
4691                         int isMe = 0;
4692                         /* check if consumer points to current server and database.
4693                          * If so, ignore this configuration.
4694                          */
4695                         if ( !SLAP_DBHIDDEN( c->be ) ) {
4696                                 int i;
4697                                 /* if searchbase doesn't match current DB suffix,
4698                                  * assume it's different
4699                                  */
4700                                 for ( i=0; !BER_BVISNULL( &c->be->be_nsuffix[i] ); i++ ) {
4701                                         if ( bvmatch( &si->si_base, &c->be->be_nsuffix[i] )) {
4702                                                 isMe = 1;
4703                                                 break;
4704                                         }
4705                                 }
4706                                 /* if searchbase matches, see if URLs match */
4707                                 if ( isMe && config_check_my_url( si->si_bindconf.sb_uri.bv_val,
4708                                                 lud ) == NULL )
4709                                         isMe = 0;
4710                         }
4711
4712                         if ( !isMe ) {
4713                                 init_syncrepl( si );
4714                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4715                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4716                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4717                                         si->si_ridtxt );
4718                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4719                                 if ( si->si_re )
4720                                         rc = config_sync_shadow( c ) ? -1 : 0;
4721                                 else
4722                                         rc = -1;
4723                         }
4724                 } else {
4725                         /* mirrormode still needs to see this flag in tool mode */
4726                         rc = config_sync_shadow( c ) ? -1 : 0;
4727                 }
4728                 ldap_free_urldesc( lud );
4729         }
4730
4731 #ifdef HAVE_TLS
4732         /* Use main slapd defaults */
4733         bindconf_tls_defaults( &si->si_bindconf );
4734 #endif
4735         if ( rc < 0 ) {
4736                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4737                 syncinfo_free( si, 0 );
4738                 return 1;
4739         } else {
4740                 Debug( LDAP_DEBUG_CONFIG,
4741                         "Config: ** successfully added syncrepl %s \"%s\"\n",
4742                         si->si_ridtxt,
4743                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4744                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0 );
4745                 if ( c->be->be_syncinfo ) {
4746                         syncinfo_t *sip;
4747
4748                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4749
4750                         /* add new syncrepl to end of list (same order as when deleting) */
4751                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
4752                         sip->si_next = si;
4753                 } else {
4754                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4755                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4756                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_pmutex );
4757
4758                         c->be->be_syncinfo = si;
4759                 }
4760                 si->si_cookieState->cs_ref++;
4761
4762                 si->si_next = NULL;
4763
4764                 return 0;
4765         }
4766 }
4767
4768 static void
4769 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4770 {
4771         struct berval bc, uri, bs;
4772         char buf[BUFSIZ*2], *ptr;
4773         ber_len_t len;
4774         int i;
4775 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4776
4777         BER_BVZERO( bv );
4778
4779         /* temporarily inhibit bindconf from printing URI */
4780         uri = si->si_bindconf.sb_uri;
4781         BER_BVZERO( &si->si_bindconf.sb_uri );
4782         si->si_bindconf.sb_version = 0;
4783         bindconf_unparse( &si->si_bindconf, &bc );
4784         si->si_bindconf.sb_uri = uri;
4785         si->si_bindconf.sb_version = LDAP_VERSION3;
4786
4787         ptr = buf;
4788         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_RID_MAX );
4789         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4790                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4791         if ( len >= sizeof( buf ) ) return;
4792         ptr += len;
4793         if ( !BER_BVISNULL( &bc ) ) {
4794                 if ( WHATSLEFT <= bc.bv_len ) {
4795                         free( bc.bv_val );
4796                         return;
4797                 }
4798                 ptr = lutil_strcopy( ptr, bc.bv_val );
4799                 free( bc.bv_val );
4800         }
4801         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4802                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4803                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4804                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4805                 *ptr++ = '"';
4806         }
4807         if ( !BER_BVISNULL( &si->si_base ) ) {
4808                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4809                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4810                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4811                 *ptr++ = '"';
4812         }
4813 #ifdef ENABLE_REWRITE
4814         if ( !BER_BVISNULL( &si->si_suffixm ) ) {
4815                 if ( WHATSLEFT <= STRLENOF( " " SUFFIXMSTR "=\"" "\"" ) + si->si_suffixm.bv_len ) return;
4816                 ptr = lutil_strcopy( ptr, " " SUFFIXMSTR "=\"" );
4817                 ptr = lutil_strcopy( ptr, si->si_suffixm.bv_val );
4818                 *ptr++ = '"';
4819         }
4820 #endif
4821         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4822                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4823                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4824                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4825                 *ptr++ = '"';
4826         }
4827         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4828                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4829                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4830                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4831                 *ptr++ = '"';
4832         }
4833         if ( ldap_pvt_scope2bv( si->si_scope, &bs ) == LDAP_SUCCESS ) {
4834                 if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + bs.bv_len ) return;
4835                 ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4836                 ptr = lutil_strcopy( ptr, bs.bv_val );
4837         }
4838         if ( si->si_attrsonly ) {
4839                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4840                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4841         }
4842         if ( si->si_anfile ) {
4843                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4844                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4845                 ptr = lutil_strcopy( ptr, si->si_anfile );
4846                 *ptr++ = '"';
4847         } else if ( si->si_allattrs || si->si_allopattrs ||
4848                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4849         {
4850                 char *old;
4851
4852                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4853                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4854                 old = ptr;
4855                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4856                 if ( ptr == NULL ) return;
4857                 if ( si->si_allattrs ) {
4858                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4859                         if ( old != ptr ) *ptr++ = ',';
4860                         *ptr++ = '*';
4861                 }
4862                 if ( si->si_allopattrs ) {
4863                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4864                         if ( old != ptr ) *ptr++ = ',';
4865                         *ptr++ = '+';
4866                 }
4867                 *ptr++ = '"';
4868         }
4869         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4870                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4871                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4872                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4873                 if ( ptr == NULL ) return;
4874         }
4875         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4876         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4877         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4878
4879         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4880         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4881         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4882                 "refreshAndPersist" : "refreshOnly" );
4883
4884         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4885                 int dd, hh, mm, ss;
4886
4887                 dd = si->si_interval;
4888                 ss = dd % 60;
4889                 dd /= 60;
4890                 mm = dd % 60;
4891                 dd /= 60;
4892                 hh = dd % 24;
4893                 dd /= 24;
4894                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4895                         INTERVALSTR, dd, hh, mm, ss );
4896                 if ( len >= WHATSLEFT ) return;
4897                 ptr += len;
4898         }
4899
4900         if ( si->si_got & GOT_RETRY ) {
4901                 const char *space = "";
4902                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4903                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4904                 for (i=0; si->si_retryinterval[i]; i++) {
4905                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4906                                 (long) si->si_retryinterval[i] );
4907                         space = " ";
4908                         if ( WHATSLEFT - 1 <= len ) return;
4909                         ptr += len;
4910                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4911                                 *ptr++ = '+';
4912                         else {
4913                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4914                                 if ( WHATSLEFT <= len ) return;
4915                                 ptr += len;
4916                         }
4917                 }
4918                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4919                 *ptr++ = '"';
4920         } else {
4921                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4922         }
4923
4924         if ( si->si_slimit ) {
4925                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4926                 if ( WHATSLEFT <= len ) return;
4927                 ptr += len;
4928         }
4929
4930         if ( si->si_tlimit ) {
4931                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4932                 if ( WHATSLEFT <= len ) return;
4933                 ptr += len;
4934         }
4935
4936         if ( si->si_syncdata ) {
4937                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4938                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4939                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4940                         ptr = lutil_strcopy( ptr, bc.bv_val );
4941                 }
4942         }
4943         bc.bv_len = ptr - buf;
4944         bc.bv_val = buf;
4945         ber_dupbv( bv, &bc );
4946 }
4947
4948 int
4949 syncrepl_config( ConfigArgs *c )
4950 {
4951         if (c->op == SLAP_CONFIG_EMIT) {
4952                 if ( c->be->be_syncinfo ) {
4953                         struct berval bv;
4954                         syncinfo_t *si;
4955
4956                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4957                                 syncrepl_unparse( si, &bv );
4958                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4959                         }
4960                         return 0;
4961                 }
4962                 return 1;
4963         } else if ( c->op == LDAP_MOD_DELETE ) {
4964                 int isrunning = 0;
4965                 if ( c->be->be_syncinfo ) {
4966                         syncinfo_t *si, **sip;
4967                         int i;
4968
4969                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4970                                 si = *sip;
4971                                 if ( c->valx == -1 || i == c->valx ) {
4972                                         *sip = si->si_next;
4973                                         si->si_ctype = -1;
4974                                         si->si_next = NULL;
4975                                         /* If the task is currently active, we have to leave
4976                                          * it running. It will exit on its own. This will only
4977                                          * happen when running on the cn=config DB.
4978                                          */
4979                                         if ( si->si_re ) {
4980                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
4981                                                         isrunning = 1;
4982                                                 } else {
4983                                                         /* There is no active thread, but we must still
4984                                                          * ensure that no thread is (or will be) queued
4985                                                          * while we removes the task.
4986                                                          */
4987                                                         struct re_s *re = si->si_re;
4988                                                         si->si_re = NULL;
4989
4990                                                         if ( si->si_conn ) {
4991                                                                 connection_client_stop( si->si_conn );
4992                                                                 si->si_conn = NULL;
4993                                                         }
4994
4995                                                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4996                                                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) ) {
4997                                                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
4998                                                                 isrunning = 1;
4999                                                         }
5000                                                         ldap_pvt_runqueue_remove( &slapd_rq, re );
5001                                                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
5002
5003                                                         if ( ldap_pvt_thread_pool_retract( &connection_pool,
5004                                                                         re->routine, re ) > 0 )
5005                                                                 isrunning = 0;
5006
5007                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
5008                                                 }
5009                                         }
5010                                         if ( !isrunning ) {
5011                                                 syncinfo_free( si, 0 );
5012                                         }
5013                                         if ( i == c->valx )
5014                                                 break;
5015                                 } else {
5016                                         sip = &si->si_next;
5017                                 }
5018                         }
5019                 }
5020                 if ( !c->be->be_syncinfo ) {
5021                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
5022                 }
5023                 return 0;
5024         }
5025         if ( SLAP_SLURP_SHADOW( c->be ) ) {
5026                 Debug(LDAP_DEBUG_ANY, "%s: "
5027                         "syncrepl: database already shadowed.\n",
5028                         c->log, 0, 0);
5029                 return(1);
5030         } else {
5031                 return add_syncrepl( c );
5032         }
5033 }