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 ( rc == REWRITE_REGEXEC_OK && sdn->bv_val )
1581                 sdn->bv_len = strlen( sdn->bv_val );
1582         return rc;
1583 }
1584 #define REWRITE_VAL(si, ad, bv, bv2)    \
1585         BER_BVZERO( &bv2 );     \
1586         if ( si->si_rewrite && ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName) \
1587                 syncrepl_rewrite_dn( si, &bv, &bv2); \
1588         if ( BER_BVISNULL( &bv2 ))  \
1589                 ber_dupbv( &bv2, &bv )
1590 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1591         BER_BVZERO( &bv2 );     \
1592         if (si->si_rewrite) \
1593                 syncrepl_rewrite_dn(si, &bv, &bv2); \
1594         rc = dnPrettyNormal( NULL, bv2.bv_val ? &bv2 : &bv, &dn, &ndn, op->o_tmpmemctx ); \
1595         ch_free(bv2.bv_val)
1596 #else
1597 #define REWRITE_VAL(si, ad, bv, bv2)    ber_dupbv(&bv2, &bv)
1598 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1599         rc = dnPrettyNormal( NULL, &bv, &dn, &ndn, op->o_tmpmemctx )
1600 #endif
1601
1602
1603 static slap_verbmasks modops[] = {
1604         { BER_BVC("add"), LDAP_REQ_ADD },
1605         { BER_BVC("delete"), LDAP_REQ_DELETE },
1606         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1607         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1608         { BER_BVNULL, 0 }
1609 };
1610
1611 static int
1612 syncrepl_accesslog_mods(
1613         syncinfo_t *si,
1614         struct berval *vals,
1615         struct Modifications **modres
1616 )
1617 {
1618         char *colon;
1619         const char *text;
1620         AttributeDescription *ad;
1621         struct berval bv, bv2;
1622         short op;
1623         Modifications *mod = NULL, *modlist = NULL, **modtail;
1624         int i, rc = 0;
1625
1626         modtail = &modlist;
1627
1628         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1629                 ad = NULL;
1630                 bv = vals[i];
1631
1632                 colon = ber_bvchr( &bv, ':' );
1633                 if ( !colon ) {
1634                         /* Invalid */
1635                         continue;
1636                 }
1637
1638                 bv.bv_len = colon - bv.bv_val;
1639                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1640                         /* Invalid */
1641                         Debug( LDAP_DEBUG_ANY, "syncrepl_accesslog_mods: %s "
1642                                 "Invalid attribute %s, %s\n",
1643                                 si->si_ridtxt, bv.bv_val, text );
1644                         slap_mods_free( modlist, 1 );
1645                         modlist = NULL;
1646                         rc = -1;
1647                         break;
1648                 }
1649
1650                 /* Ignore dynamically generated attrs */
1651                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1652                         continue;
1653                 }
1654
1655                 /* Ignore excluded attrs */
1656                 if ( ldap_charray_inlist( si->si_exattrs,
1657                         ad->ad_type->sat_cname.bv_val ) )
1658                 {
1659                         continue;
1660                 }
1661
1662                 switch(colon[1]) {
1663                 case '+':       op = LDAP_MOD_ADD; break;
1664                 case '-':       op = LDAP_MOD_DELETE; break;
1665                 case '=':       op = LDAP_MOD_REPLACE; break;
1666                 case '#':       op = LDAP_MOD_INCREMENT; break;
1667                 default:        continue;
1668                 }
1669
1670                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1671                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1672                         mod->sml_flags = 0;
1673                         mod->sml_op = op;
1674                         mod->sml_next = NULL;
1675                         mod->sml_desc = ad;
1676                         mod->sml_type = ad->ad_cname;
1677                         mod->sml_values = NULL;
1678                         mod->sml_nvalues = NULL;
1679                         mod->sml_numvals = 0;
1680
1681                         *modtail = mod;
1682                         modtail = &mod->sml_next;
1683                 }
1684                 if ( colon[2] == ' ' ) {
1685                         bv.bv_val = colon + 3;
1686                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1687                         REWRITE_VAL( si, ad, bv, bv2 );
1688                         ber_bvarray_add( &mod->sml_values, &bv2 );
1689                         mod->sml_numvals++;
1690                 }
1691         }
1692         *modres = modlist;
1693         return rc;
1694 }
1695
1696 static int
1697 syncrepl_changelog_mods(
1698         syncinfo_t *si,
1699         struct berval *vals,
1700         struct Modifications **modres
1701 )
1702 {
1703         return -1;      /* FIXME */
1704 }
1705
1706 static int
1707 syncrepl_message_to_op(
1708         syncinfo_t      *si,
1709         Operation       *op,
1710         LDAPMessage     *msg
1711 )
1712 {
1713         BerElement      *ber = NULL;
1714         Modifications   *modlist = NULL;
1715         logschema *ls;
1716         SlapReply rs = { REP_RESULT };
1717         slap_callback cb = { NULL, null_callback, NULL, NULL };
1718
1719         const char      *text;
1720         char txtbuf[SLAP_TEXT_BUFLEN];
1721         size_t textlen = sizeof txtbuf;
1722
1723         struct berval   bdn, dn = BER_BVNULL, ndn;
1724         struct berval   bv, bv2, *bvals = NULL;
1725         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1726                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1727                 psup = BER_BVNULL, nsup = BER_BVNULL;
1728         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1729         int             do_graduate = 0;
1730
1731         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1732                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1733                         "Message type should be entry (%d)",
1734                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1735                 return -1;
1736         }
1737
1738         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1739                 ls = &accesslog_sc;
1740         else
1741                 ls = &changelog_sc;
1742
1743         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1744
1745         if ( rc != LDAP_SUCCESS ) {
1746                 Debug( LDAP_DEBUG_ANY,
1747                         "syncrepl_message_to_op: %s dn get failed (%d)",
1748                         si->si_ridtxt, rc, 0 );
1749                 return rc;
1750         }
1751
1752         op->o_tag = LBER_DEFAULT;
1753         op->o_bd = si->si_wbe;
1754
1755         if ( BER_BVISEMPTY( &bdn )) {
1756                 Debug( LDAP_DEBUG_ANY,
1757                         "syncrepl_message_to_op: %s got empty dn",
1758                         si->si_ridtxt, 0, 0 );
1759                 return LDAP_OTHER;
1760         }
1761
1762         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1763                 == LDAP_SUCCESS ) {
1764                 if ( bv.bv_val == NULL )
1765                         break;
1766
1767                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1768                         bdn = bvals[0];
1769                         REWRITE_DN( si, bdn, bv2, dn, ndn );
1770                         if ( rc != LDAP_SUCCESS ) {
1771                                 Debug( LDAP_DEBUG_ANY,
1772                                         "syncrepl_message_to_op: %s "
1773                                         "dn \"%s\" normalization failed (%d)",
1774                                         si->si_ridtxt, bdn.bv_val, rc );
1775                                 rc = -1;
1776                                 ch_free( bvals );
1777                                 goto done;
1778                         }
1779                         ber_dupbv( &op->o_req_dn, &dn );
1780                         ber_dupbv( &op->o_req_ndn, &ndn );
1781                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1782                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1783                         freeReqDn = 1;
1784                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1785                         int i = verb_to_mask( bvals[0].bv_val, modops );
1786                         if ( i < 0 ) {
1787                                 Debug( LDAP_DEBUG_ANY,
1788                                         "syncrepl_message_to_op: %s unknown op %s",
1789                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1790                                 ch_free( bvals );
1791                                 rc = -1;
1792                                 goto done;
1793                         }
1794                         op->o_tag = modops[i].mask;
1795                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1796                         /* Parse attribute into modlist */
1797                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1798                                 rc = syncrepl_accesslog_mods( si, bvals, &modlist );
1799                         } else {
1800                                 rc = syncrepl_changelog_mods( si, bvals, &modlist );
1801                         }
1802                         if ( rc ) goto done;
1803                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1804                         rdn = bvals[0];
1805                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1806                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1807                                 deleteOldRdn = 1;
1808                         }
1809                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1810                         sup = bvals[0];
1811                 } else if ( !ber_bvstrcasecmp( &bv,
1812                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1813                 {
1814                         slap_queue_csn( op, bvals );
1815                         do_graduate = 1;
1816                 }
1817                 ch_free( bvals );
1818         }
1819
1820         /* If we didn't get a mod type or a target DN, bail out */
1821         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1822                 rc = -1;
1823                 goto done;
1824         }
1825
1826         op->o_callback = &cb;
1827         slap_op_time( &op->o_time, &op->o_tincr );
1828
1829         switch( op->o_tag ) {
1830         case LDAP_REQ_ADD:
1831         case LDAP_REQ_MODIFY:
1832                 /* If we didn't get required data, bail */
1833                 if ( !modlist ) goto done;
1834
1835                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1836
1837                 if ( rc != LDAP_SUCCESS ) {
1838                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1839                                 "mods check (%s)\n",
1840                                 si->si_ridtxt, text, 0 );
1841                         goto done;
1842                 }
1843
1844                 if ( op->o_tag == LDAP_REQ_ADD ) {
1845                         Entry *e = entry_alloc();
1846                         op->ora_e = e;
1847                         op->ora_e->e_name = op->o_req_dn;
1848                         op->ora_e->e_nname = op->o_req_ndn;
1849                         freeReqDn = 0;
1850                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1851                         if( rc != LDAP_SUCCESS ) {
1852                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1853                                 "mods2entry (%s)\n",
1854                                         si->si_ridtxt, text, 0 );
1855                         } else {
1856                                 rc = op->o_bd->be_add( op, &rs );
1857                                 Debug( LDAP_DEBUG_SYNC,
1858                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1859                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1860                                 do_graduate = 0;
1861                         }
1862                         if ( e == op->ora_e )
1863                                 be_entry_release_w( op, op->ora_e );
1864                 } else {
1865                         op->orm_modlist = modlist;
1866                         op->o_bd = si->si_wbe;
1867                         rc = op->o_bd->be_modify( op, &rs );
1868                         modlist = op->orm_modlist;
1869                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1870                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1871                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1872                         op->o_bd = si->si_be;
1873                         do_graduate = 0;
1874                 }
1875                 break;
1876         case LDAP_REQ_MODRDN:
1877                 if ( BER_BVISNULL( &rdn ) ) goto done;
1878
1879                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1880                         goto done;
1881                 }
1882                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1883                         goto done;
1884                 }
1885                 if ( !BER_BVISNULL( &sup ) ) {
1886                         REWRITE_DN( si, sup, bv2, psup, nsup );
1887                         if ( rc )
1888                                 goto done;
1889                         op->orr_newSup = &psup;
1890                         op->orr_nnewSup = &nsup;
1891                 } else {
1892                         op->orr_newSup = NULL;
1893                         op->orr_nnewSup = NULL;
1894                 }
1895                 op->orr_newrdn = prdn;
1896                 op->orr_nnewrdn = nrdn;
1897                 op->orr_deleteoldrdn = deleteOldRdn;
1898                 op->orr_modlist = NULL;
1899                 if ( slap_modrdn2mods( op, &rs ) ) {
1900                         goto done;
1901                 }
1902
1903                 /* Append modlist for operational attrs */
1904                 {
1905                         Modifications *m;
1906
1907                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1908                                 ;
1909                         m->sml_next = modlist;
1910                         modlist = NULL;
1911                 }
1912                 rc = op->o_bd->be_modrdn( op, &rs );
1913                 slap_mods_free( op->orr_modlist, 1 );
1914                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1915                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1916                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1917                 do_graduate = 0;
1918                 break;
1919         case LDAP_REQ_DELETE:
1920                 rc = op->o_bd->be_delete( op, &rs );
1921                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1922                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1923                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1924                 do_graduate = 0;
1925                 break;
1926         }
1927 done:
1928         if ( do_graduate )
1929                 slap_graduate_commit_csn( op );
1930         op->o_bd = si->si_be;
1931         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1932         BER_BVZERO( &op->o_csn );
1933         if ( modlist ) {
1934                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1935         }
1936         if ( !BER_BVISNULL( &rdn ) ) {
1937                 if ( !BER_BVISNULL( &nsup ) ) {
1938                         ch_free( nsup.bv_val );
1939                 }
1940                 if ( !BER_BVISNULL( &psup ) ) {
1941                         ch_free( psup.bv_val );
1942                 }
1943                 if ( !BER_BVISNULL( &nrdn ) ) {
1944                         ch_free( nrdn.bv_val );
1945                 }
1946                 if ( !BER_BVISNULL( &prdn ) ) {
1947                         ch_free( prdn.bv_val );
1948                 }
1949         }
1950         if ( freeReqDn ) {
1951                 ch_free( op->o_req_ndn.bv_val );
1952                 ch_free( op->o_req_dn.bv_val );
1953         }
1954         ber_free( ber, 0 );
1955         return rc;
1956 }
1957
1958 static int
1959 syncrepl_message_to_entry(
1960         syncinfo_t      *si,
1961         Operation       *op,
1962         LDAPMessage     *msg,
1963         Modifications   **modlist,
1964         Entry                   **entry,
1965         int             syncstate
1966 )
1967 {
1968         Entry           *e = NULL;
1969         BerElement      *ber = NULL;
1970         Modifications   tmp;
1971         Modifications   *mod;
1972         Modifications   **modtail = modlist;
1973
1974         const char      *text;
1975         char txtbuf[SLAP_TEXT_BUFLEN];
1976         size_t textlen = sizeof txtbuf;
1977
1978         struct berval   bdn = BER_BVNULL, dn, ndn, bv2;
1979         int             rc, is_ctx;
1980
1981         *modlist = NULL;
1982
1983         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1984                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1985                         "Message type should be entry (%d)",
1986                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1987                 return -1;
1988         }
1989
1990         op->o_tag = LDAP_REQ_ADD;
1991
1992         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1993         if ( rc != LDAP_SUCCESS ) {
1994                 Debug( LDAP_DEBUG_ANY,
1995                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1996                         si->si_ridtxt, rc, 0 );
1997                 return rc;
1998         }
1999
2000         if ( BER_BVISEMPTY( &bdn ) && !BER_BVISEMPTY( &op->o_bd->be_nsuffix[0] ) ) {
2001                 Debug( LDAP_DEBUG_ANY,
2002                         "syncrepl_message_to_entry: %s got empty dn",
2003                         si->si_ridtxt, 0, 0 );
2004                 return LDAP_OTHER;
2005         }
2006
2007         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
2008                 /* NOTE: this could be done even before decoding the DN,
2009                  * although encoding errors wouldn't be detected */
2010                 rc = LDAP_SUCCESS;
2011                 goto done;
2012         }
2013
2014         if ( entry == NULL ) {
2015                 return -1;
2016         }
2017
2018         REWRITE_DN( si, bdn, bv2, dn, ndn );
2019         if ( rc != LDAP_SUCCESS ) {
2020                 /* One of the things that could happen is that the schema
2021                  * is not lined-up; this could result in unknown attributes.
2022                  * A value non conformant to the syntax should be unlikely,
2023                  * except when replicating between different versions
2024                  * of the software, or when syntax validation bugs are fixed
2025                  */
2026                 Debug( LDAP_DEBUG_ANY,
2027                         "syncrepl_message_to_entry: "
2028                         "%s dn \"%s\" normalization failed (%d)",
2029                         si->si_ridtxt, bdn.bv_val, rc );
2030                 return rc;
2031         }
2032
2033         ber_dupbv( &op->o_req_dn, &dn );
2034         ber_dupbv( &op->o_req_ndn, &ndn );
2035         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
2036         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
2037
2038         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
2039
2040         e = entry_alloc();
2041         e->e_name = op->o_req_dn;
2042         e->e_nname = op->o_req_ndn;
2043
2044         while ( ber_remaining( ber ) ) {
2045                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
2046                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
2047                 {
2048                         break;
2049                 }
2050
2051                 /* Drop all updates to the contextCSN of the context entry
2052                  * (ITS#4622, etc.)
2053                  */
2054                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
2055                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
2056                         ber_bvarray_free( tmp.sml_values );
2057                         continue;
2058                 }
2059
2060                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
2061
2062                 mod->sml_op = LDAP_MOD_REPLACE;
2063                 mod->sml_flags = 0;
2064                 mod->sml_next = NULL;
2065                 mod->sml_desc = NULL;
2066                 mod->sml_type = tmp.sml_type;
2067                 mod->sml_values = tmp.sml_values;
2068                 mod->sml_nvalues = NULL;
2069                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
2070
2071 #ifdef ENABLE_REWRITE
2072                 if (si->si_rewrite) {
2073                         AttributeDescription *ad = NULL;
2074                         slap_bv2ad( &tmp.sml_type, &ad, &text );
2075                         if ( ad ) {
2076                                 mod->sml_desc = ad;
2077                                 mod->sml_type = ad->ad_cname;
2078                                 if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
2079                                         int i;
2080                                         for ( i = 0; tmp.sml_values[i].bv_val; i++ ) {
2081                                                 syncrepl_rewrite_dn( si, &tmp.sml_values[i], &bv2);
2082                                                 if ( !BER_BVISNULL( &bv2 )) {
2083                                                         ber_memfree( tmp.sml_values[i].bv_val );
2084                                                         tmp.sml_values[i] = bv2;
2085                                                 }
2086                                         }
2087                                 }
2088                         }
2089                 }
2090 #endif
2091                 *modtail = mod;
2092                 modtail = &mod->sml_next;
2093         }
2094
2095         if ( *modlist == NULL ) {
2096                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
2097                         si->si_ridtxt, 0, 0 );
2098                 rc = -1;
2099                 goto done;
2100         }
2101
2102         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
2103
2104         if ( rc != LDAP_SUCCESS ) {
2105                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
2106                         si->si_ridtxt, text, 0 );
2107                 goto done;
2108         }
2109
2110         /* Strip out dynamically generated attrs */
2111         for ( modtail = modlist; *modtail ; ) {
2112                 mod = *modtail;
2113                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
2114                         *modtail = mod->sml_next;
2115                         slap_mod_free( &mod->sml_mod, 0 );
2116                         ch_free( mod );
2117                 } else {
2118                         modtail = &mod->sml_next;
2119                 }
2120         }
2121
2122         /* Strip out attrs in exattrs list */
2123         for ( modtail = modlist; *modtail ; ) {
2124                 mod = *modtail;
2125                 if ( ldap_charray_inlist( si->si_exattrs,
2126                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
2127                 {
2128                         *modtail = mod->sml_next;
2129                         slap_mod_free( &mod->sml_mod, 0 );
2130                         ch_free( mod );
2131                 } else {
2132                         modtail = &mod->sml_next;
2133                 }
2134         }
2135
2136         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
2137         if( rc != LDAP_SUCCESS ) {
2138                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
2139                         si->si_ridtxt, text, 0 );
2140         }
2141
2142 done:
2143         ber_free( ber, 0 );
2144         if ( rc != LDAP_SUCCESS ) {
2145                 if ( e ) {
2146                         entry_free( e );
2147                         e = NULL;
2148                 }
2149         }
2150         if ( entry )
2151                 *entry = e;
2152
2153         return rc;
2154 }
2155
2156 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
2157
2158 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
2159  * entry if a previous refresh was interrupted before sending us a new
2160  * context state. We try to compare the new entry to the existing entry
2161  * and ignore the new entry if they are the same.
2162  *
2163  * Also, we may get an update where the entryDN has changed, due to
2164  * a ModDn on the provider. We detect this as well, so we can issue
2165  * the corresponding operation locally.
2166  *
2167  * In the case of a modify, we get a list of all the attributes
2168  * in the original entry. Rather than deleting the entry and re-adding it,
2169  * we issue a Modify request that deletes all the attributes and adds all
2170  * the new ones. This avoids the issue of trying to delete/add a non-leaf
2171  * entry.
2172  *
2173  * We otherwise distinguish ModDN from Modify; in the case of
2174  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
2175  * operational attributes from the entry, and do a regular ModDN.
2176  */
2177 typedef struct dninfo {
2178         Entry *new_entry;
2179         struct berval dn;
2180         struct berval ndn;
2181         struct berval nnewSup;
2182         int renamed;    /* Was an existing entry renamed? */
2183         int delOldRDN;  /* Was old RDN deleted? */
2184         Modifications **modlist;        /* the modlist we received */
2185         Modifications *mods;    /* the modlist we compared */
2186         Attribute *oldNattr;    /* old naming attr */
2187         AttributeDescription *oldDesc;  /* for renames */
2188         AttributeDescription *newDesc;  /* for renames */
2189 } dninfo;
2190
2191 /* return 1 if inserted, 0 otherwise */
2192 static int
2193 avl_presentlist_insert(
2194         syncinfo_t* si,
2195         struct berval *syncUUID )
2196 {
2197         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
2198
2199         syncuuid_bv->bv_len = syncUUID->bv_len;
2200         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
2201         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
2202         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
2203
2204         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
2205                 syncuuid_cmp, avl_dup_error ) )
2206         {
2207                 ch_free( syncuuid_bv );
2208                 return 0;
2209         }
2210
2211         return 1;
2212 }
2213
2214 static int
2215 syncrepl_entry(
2216         syncinfo_t* si,
2217         Operation *op,
2218         Entry* entry,
2219         Modifications** modlist,
2220         int syncstate,
2221         struct berval* syncUUID,
2222         struct berval* syncCSN )
2223 {
2224         Backend *be = op->o_bd;
2225         slap_callback   cb = { NULL, NULL, NULL, NULL };
2226         int syncuuid_inserted = 0;
2227         struct berval   syncUUID_strrep = BER_BVNULL;
2228
2229         SlapReply       rs_search = {REP_RESULT};
2230         SlapReply       rs_delete = {REP_RESULT};
2231         SlapReply       rs_add = {REP_RESULT};
2232         SlapReply       rs_modify = {REP_RESULT};
2233         Filter f = {0};
2234         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2235         int rc = LDAP_SUCCESS;
2236
2237         struct berval pdn = BER_BVNULL;
2238         dninfo dni = {0};
2239         int     retry = 1;
2240         int     freecsn = 1;
2241
2242         Debug( LDAP_DEBUG_SYNC,
2243                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2244                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2245
2246         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2247                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2248                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2249                 }
2250         }
2251
2252         if ( syncstate == LDAP_SYNC_PRESENT ) {
2253                 return 0;
2254         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2255                 if ( entry == NULL ) {
2256                         return 0;
2257                 }
2258         }
2259
2260         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2261         if ( syncstate != LDAP_SYNC_DELETE ) {
2262                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2263
2264                 if ( a == NULL ) {
2265                         /* add if missing */
2266                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2267                                 &syncUUID_strrep, syncUUID );
2268
2269                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2270                         /* replace only if necessary */
2271                         if ( a->a_nvals != a->a_vals ) {
2272                                 ber_memfree( a->a_nvals[0].bv_val );
2273                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2274                         }
2275                         ber_memfree( a->a_vals[0].bv_val );
2276                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2277                 }
2278         }
2279
2280         f.f_choice = LDAP_FILTER_EQUALITY;
2281         f.f_ava = &ava;
2282         ava.aa_desc = slap_schema.si_ad_entryUUID;
2283         ava.aa_value = *syncUUID;
2284
2285         if ( syncuuid_inserted ) {
2286                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2287                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2288         }
2289         op->ors_filter = &f;
2290
2291         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2292         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2293                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2294         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2295         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2296                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2297         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2298         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2299
2300         op->o_tag = LDAP_REQ_SEARCH;
2301         op->ors_scope = LDAP_SCOPE_SUBTREE;
2302         op->ors_deref = LDAP_DEREF_NEVER;
2303
2304         /* get the entry for this UUID */
2305         op->o_req_dn = si->si_base;
2306         op->o_req_ndn = si->si_base;
2307
2308         op->o_time = slap_get_time();
2309         op->ors_tlimit = SLAP_NO_LIMIT;
2310         op->ors_slimit = 1;
2311         op->ors_limit = NULL;
2312
2313         op->ors_attrs = slap_anlist_all_attributes;
2314         op->ors_attrsonly = 0;
2315
2316         /* set callback function */
2317         op->o_callback = &cb;
2318         cb.sc_response = dn_callback;
2319         cb.sc_private = &dni;
2320         dni.new_entry = entry;
2321         dni.modlist = modlist;
2322
2323         rc = be->be_search( op, &rs_search );
2324         Debug( LDAP_DEBUG_SYNC,
2325                         "syncrepl_entry: %s be_search (%d)\n",
2326                         si->si_ridtxt, rc, 0 );
2327
2328         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2329                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2330         }
2331
2332         cb.sc_response = null_callback;
2333         cb.sc_private = si;
2334
2335         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2336                 Debug( LDAP_DEBUG_SYNC,
2337                                 "syncrepl_entry: %s %s\n",
2338                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2339         } else {
2340                 Debug( LDAP_DEBUG_SYNC,
2341                                 "syncrepl_entry: %s %s\n",
2342                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2343         }
2344
2345         assert( BER_BVISNULL( &op->o_csn ) );
2346         if ( syncCSN ) {
2347                 slap_queue_csn( op, syncCSN );
2348         }
2349
2350         slap_op_time( &op->o_time, &op->o_tincr );
2351         switch ( syncstate ) {
2352         case LDAP_SYNC_ADD:
2353         case LDAP_SYNC_MODIFY:
2354                 if ( BER_BVISNULL( &op->o_csn ))
2355                 {
2356
2357                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2358                         if ( a ) {
2359                                 /* FIXME: op->o_csn is assumed to be
2360                                  * on the thread's slab; this needs
2361                                  * to be cleared ASAP.
2362                                  * What happens if already present?
2363                                  */
2364                                 assert( BER_BVISNULL( &op->o_csn ) );
2365                                 op->o_csn = a->a_vals[0];
2366                                 freecsn = 0;
2367                         }
2368                 }
2369 retry_add:;
2370                 if ( BER_BVISNULL( &dni.dn ) ) {
2371
2372                         op->o_req_dn = entry->e_name;
2373                         op->o_req_ndn = entry->e_nname;
2374                         op->o_tag = LDAP_REQ_ADD;
2375                         op->ora_e = entry;
2376                         op->o_bd = si->si_wbe;
2377
2378                         rc = op->o_bd->be_add( op, &rs_add );
2379                         Debug( LDAP_DEBUG_SYNC,
2380                                         "syncrepl_entry: %s be_add %s (%d)\n",
2381                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2382                         switch ( rs_add.sr_err ) {
2383                         case LDAP_SUCCESS:
2384                                 if ( op->ora_e == entry ) {
2385                                         be_entry_release_w( op, entry );
2386                                 }
2387                                 entry = NULL;
2388                                 break;
2389
2390                         case LDAP_REFERRAL:
2391                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2392                          * only if the suffix entry is not present */
2393                         case LDAP_NO_SUCH_OBJECT:
2394                                 rc = syncrepl_add_glue( op, entry );
2395                                 entry = NULL;
2396                                 break;
2397
2398                         /* if an entry was added via syncrepl_add_glue(),
2399                          * it likely has no entryUUID, so the previous
2400                          * be_search() doesn't find it.  In this case,
2401                          * give syncrepl a chance to modify it. Also
2402                          * allow for entries that were recreated with the
2403                          * same DN but a different entryUUID.
2404                          */
2405                         case LDAP_ALREADY_EXISTS:
2406                                 if ( retry ) {
2407                                         Operation       op2 = *op;
2408                                         SlapReply       rs2 = { 0 };
2409                                         slap_callback   cb2 = { 0 };
2410
2411                                         op2.o_bd = be;
2412                                         op2.o_tag = LDAP_REQ_SEARCH;
2413                                         op2.o_req_dn = entry->e_name;
2414                                         op2.o_req_ndn = entry->e_nname;
2415                                         op2.ors_scope = LDAP_SCOPE_BASE;
2416                                         op2.ors_deref = LDAP_DEREF_NEVER;
2417                                         op2.ors_attrs = slap_anlist_all_attributes;
2418                                         op2.ors_attrsonly = 0;
2419                                         op2.ors_limit = NULL;
2420                                         op2.ors_slimit = 1;
2421                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2422
2423                                         f.f_choice = LDAP_FILTER_PRESENT;
2424                                         f.f_desc = slap_schema.si_ad_objectClass;
2425                                         op2.ors_filter = &f;
2426                                         op2.ors_filterstr = generic_filterstr;
2427
2428                                         op2.o_callback = &cb2;
2429                                         cb2.sc_response = dn_callback;
2430                                         cb2.sc_private = &dni;
2431
2432                                         rc = be->be_search( &op2, &rs2 );
2433                                         if ( rc ) goto done;
2434
2435                                         retry = 0;
2436                                         slap_op_time( &op->o_time, &op->o_tincr );
2437                                         goto retry_add;
2438                                 }
2439                                 /* FALLTHRU */
2440
2441                         default:
2442                                 Debug( LDAP_DEBUG_ANY,
2443                                         "syncrepl_entry: %s be_add %s failed (%d)\n",
2444                                         si->si_ridtxt, op->o_req_dn.bv_val, rs_add.sr_err );
2445                                 break;
2446                         }
2447                         syncCSN = NULL;
2448                         op->o_bd = be;
2449                         goto done;
2450                 }
2451                 /* FALLTHRU */
2452                 op->o_req_dn = dni.dn;
2453                 op->o_req_ndn = dni.ndn;
2454                 if ( dni.renamed ) {
2455                         struct berval noldp, newp;
2456                         Modifications *mod, **modtail, **ml, *m2;
2457                         int i, got_replace = 0, just_rename = 0;
2458
2459                         op->o_tag = LDAP_REQ_MODRDN;
2460                         dnRdn( &entry->e_name, &op->orr_newrdn );
2461                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2462
2463                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2464                                 dnParent( &entry->e_name, &newp );
2465                                 op->orr_newSup = &newp;
2466                                 op->orr_nnewSup = &dni.nnewSup;
2467                         } else {
2468                                 op->orr_newSup = NULL;
2469                                 op->orr_nnewSup = NULL;
2470                         }
2471                         op->orr_deleteoldrdn = dni.delOldRDN;
2472                         op->orr_modlist = NULL;
2473                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2474                                 goto done;
2475                         }
2476
2477                         /* Drop the RDN-related mods from this op, because their
2478                          * equivalents were just setup by slap_modrdn2mods.
2479                          *
2480                          * If delOldRDN is TRUE then we should see a delete modop
2481                          * for oldDesc. We might see a replace instead.
2482                          *  delete with no values: therefore newDesc != oldDesc.
2483                          *   if oldNattr had only one value, then Drop this op.
2484                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2485                          *  delete with N values: Drop oldRDN value, keep remainder.
2486                          *  replace with 1 value: if oldNattr had only one value and
2487                          *     newDesc == oldDesc, Drop this op.
2488                          * Any other cases must be left intact.
2489                          *
2490                          * We should also see an add modop for newDesc. (But not if
2491                          * we got a replace modop due to delOldRDN.) If it has
2492                          * multiple values, we'll have to drop the new RDN value.
2493                          */
2494                         modtail = &op->orr_modlist;
2495                         if ( dni.delOldRDN ) {
2496                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2497                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2498                                                 mod = *ml;
2499                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2500                                                         dni.oldDesc != dni.newDesc ) {
2501                                                         /* This Replace is due to other Mods.
2502                                                          * Just let it ride.
2503                                                          */
2504                                                         continue;
2505                                                 }
2506                                                 if ( mod->sml_numvals <= 1 &&
2507                                                         dni.oldNattr->a_numvals == 1 &&
2508                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2509                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2510                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2511                                                                 got_replace = 1;
2512                                                         /* Drop this op */
2513                                                         *ml = mod->sml_next;
2514                                                         mod->sml_next = NULL;
2515                                                         slap_mods_free( mod, 1 );
2516                                                         break;
2517                                                 }
2518                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2519                                                         continue;
2520                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2521                                                         if ( m2->sml_desc == dni.oldDesc &&
2522                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2523                                                 }
2524                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2525                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2526                                                                 mod->sml_numvals--;
2527                                                                 ch_free( mod->sml_values[i].bv_val );
2528                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2529                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2530                                                                 if ( mod->sml_nvalues ) {
2531                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2532                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2533                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2534                                                                 }
2535                                                                 break;
2536                                                         }
2537                                                 }
2538                                                 if ( !mod->sml_numvals ) {
2539                                                         /* Drop this op */
2540                                                         *ml = mod->sml_next;
2541                                                         mod->sml_next = NULL;
2542                                                         slap_mods_free( mod, 1 );
2543                                                 }
2544                                                 break;
2545                                         }
2546                                 }
2547                         }
2548                         if ( !got_replace ) {
2549                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2550                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2551                                                 mod = *ml;
2552                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2553                                                         continue;
2554                                                 if ( mod->sml_numvals == 1 ) {
2555                                                         /* Drop this op */
2556                                                         *ml = mod->sml_next;
2557                                                         mod->sml_next = NULL;
2558                                                         slap_mods_free( mod, 1 );
2559                                                         break;
2560                                                 }
2561                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2562                                                         if ( m2->sml_desc == dni.oldDesc &&
2563                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2564                                                 }
2565                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2566                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2567                                                                 mod->sml_numvals--;
2568                                                                 ch_free( mod->sml_values[i].bv_val );
2569                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2570                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2571                                                                 if ( mod->sml_nvalues ) {
2572                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2573                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2574                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2575                                                                 }
2576                                                                 break;
2577                                                         }
2578                                                 }
2579                                                 break;
2580                                         }
2581                                 }
2582                         }
2583
2584                         /* RDNs must be NUL-terminated for back-ldap */
2585                         noldp = op->orr_newrdn;
2586                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2587                         noldp = op->orr_nnewrdn;
2588                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2589
2590                         /* Setup opattrs too */
2591                         {
2592                                 static AttributeDescription *nullattr = NULL;
2593                                 static AttributeDescription **const opattrs[] = {
2594                                         &slap_schema.si_ad_entryCSN,
2595                                         &slap_schema.si_ad_modifiersName,
2596                                         &slap_schema.si_ad_modifyTimestamp,
2597                                         &nullattr
2598                                 };
2599                                 AttributeDescription *opattr;
2600                                 int i;
2601
2602                                 modtail = &m2;
2603                                 /* pull mod off incoming modlist */
2604                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2605                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2606                                         {
2607                                                 if ( (*ml)->sml_desc == opattr ) {
2608                                                         mod = *ml;
2609                                                         *ml = mod->sml_next;
2610                                                         mod->sml_next = NULL;
2611                                                         *modtail = mod;
2612                                                         modtail = &mod->sml_next;
2613                                                         break;
2614                                                 }
2615                                         }
2616                                 }
2617                                 /* If there are still Modifications left, put the opattrs
2618                                  * back, and let be_modify run. Otherwise, append the opattrs
2619                                  * to the orr_modlist.
2620                                  */
2621                                 if ( dni.mods ) {
2622                                         mod = dni.mods;
2623                                         /* don't set a CSN for the rename op */
2624                                         if ( syncCSN )
2625                                                 slap_graduate_commit_csn( op );
2626                                 } else {
2627                                         mod = op->orr_modlist;
2628                                         just_rename = 1;
2629                                 }
2630                                 for ( ; mod->sml_next; mod=mod->sml_next );
2631                                 mod->sml_next = m2;
2632                         }
2633                         op->o_bd = si->si_wbe;
2634 retry_modrdn:;
2635                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2636
2637                         /* NOTE: noSuchObject should result because the new superior
2638                          * has not been added yet (ITS#6472) */
2639                         if ( rc == LDAP_NO_SUCH_OBJECT && !BER_BVISNULL( op->orr_nnewSup )) {
2640                                 Operation op2 = *op;
2641                                 rc = syncrepl_add_glue_ancestors( &op2, entry );
2642                                 if ( rc == LDAP_SUCCESS ) {
2643                                         goto retry_modrdn;
2644                                 }
2645                         }
2646
2647                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2648                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2649
2650                         slap_mods_free( op->orr_modlist, 1 );
2651                         Debug( LDAP_DEBUG_SYNC,
2652                                         "syncrepl_entry: %s be_modrdn %s (%d)\n",
2653                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2654                         op->o_bd = be;
2655                         /* Renamed entries may still have other mods so just fallthru */
2656                         op->o_req_dn = entry->e_name;
2657                         op->o_req_ndn = entry->e_nname;
2658                         /* Use CSN on the modify */
2659                         if ( just_rename )
2660                                 syncCSN = NULL;
2661                         else if ( syncCSN )
2662                                 slap_queue_csn( op, syncCSN );
2663                 }
2664                 if ( dni.mods ) {
2665                         op->o_tag = LDAP_REQ_MODIFY;
2666                         op->orm_modlist = dni.mods;
2667                         op->orm_no_opattrs = 1;
2668                         op->o_bd = si->si_wbe;
2669
2670                         rc = op->o_bd->be_modify( op, &rs_modify );
2671                         slap_mods_free( op->orm_modlist, 1 );
2672                         op->orm_no_opattrs = 0;
2673                         Debug( LDAP_DEBUG_SYNC,
2674                                         "syncrepl_entry: %s be_modify %s (%d)\n",
2675                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2676                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2677                                 Debug( LDAP_DEBUG_ANY,
2678                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2679                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2680                         }
2681                         syncCSN = NULL;
2682                         op->o_bd = be;
2683                 } else if ( !dni.renamed ) {
2684                         Debug( LDAP_DEBUG_SYNC,
2685                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2686                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2687                         if ( syncCSN ) {
2688                                 slap_graduate_commit_csn( op );
2689                                 syncCSN = NULL;
2690                         }
2691                 }
2692                 goto done;
2693         case LDAP_SYNC_DELETE :
2694                 if ( !BER_BVISNULL( &dni.dn ) ) {
2695                         op->o_req_dn = dni.dn;
2696                         op->o_req_ndn = dni.ndn;
2697                         op->o_tag = LDAP_REQ_DELETE;
2698                         op->o_bd = si->si_wbe;
2699                         rc = op->o_bd->be_delete( op, &rs_delete );
2700                         Debug( LDAP_DEBUG_SYNC,
2701                                         "syncrepl_entry: %s be_delete %s (%d)\n",
2702                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2703
2704                         while ( rs_delete.sr_err == LDAP_SUCCESS
2705                                 && op->o_delete_glue_parent ) {
2706                                 op->o_delete_glue_parent = 0;
2707                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2708                                         slap_callback cb = { NULL };
2709                                         cb.sc_response = slap_null_cb;
2710                                         dnParent( &op->o_req_ndn, &pdn );
2711                                         op->o_req_dn = pdn;
2712                                         op->o_req_ndn = pdn;
2713                                         op->o_callback = &cb;
2714                                         op->o_bd->be_delete( op, &rs_delete );
2715                                 } else {
2716                                         break;
2717                                 }
2718                         }
2719                         syncCSN = NULL;
2720                         op->o_bd = be;
2721                 }
2722                 goto done;
2723
2724         default :
2725                 Debug( LDAP_DEBUG_ANY,
2726                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2727                 goto done;
2728         }
2729
2730 done:
2731         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2732                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2733                 BER_BVZERO( &syncUUID_strrep );
2734         }
2735         if ( !BER_BVISNULL( &dni.ndn ) ) {
2736                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2737         }
2738         if ( !BER_BVISNULL( &dni.dn ) ) {
2739                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2740         }
2741         if ( entry ) {
2742                 entry_free( entry );
2743         }
2744         if ( syncCSN ) {
2745                 slap_graduate_commit_csn( op );
2746         }
2747         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2748                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2749         }
2750         BER_BVZERO( &op->o_csn );
2751         return rc;
2752 }
2753
2754 static struct berval gcbva[] = {
2755         BER_BVC("top"),
2756         BER_BVC("glue"),
2757         BER_BVNULL
2758 };
2759
2760 #define NP_DELETE_ONE   2
2761
2762 static void
2763 syncrepl_del_nonpresent(
2764         Operation *op,
2765         syncinfo_t *si,
2766         BerVarray uuids,
2767         struct sync_cookie *sc,
2768         int m )
2769 {
2770         Backend* be = op->o_bd;
2771         slap_callback   cb = { NULL };
2772         SlapReply       rs_search = {REP_RESULT};
2773         SlapReply       rs_delete = {REP_RESULT};
2774         SlapReply       rs_modify = {REP_RESULT};
2775         struct nonpresent_entry *np_list, *np_prev;
2776         int rc;
2777         AttributeName   an[2];
2778
2779         struct berval pdn = BER_BVNULL;
2780         struct berval csn;
2781
2782         op->o_req_dn = si->si_base;
2783         op->o_req_ndn = si->si_base;
2784
2785         cb.sc_response = nonpresent_callback;
2786         cb.sc_private = si;
2787
2788         op->o_callback = &cb;
2789         op->o_tag = LDAP_REQ_SEARCH;
2790         op->ors_scope = si->si_scope;
2791         op->ors_deref = LDAP_DEREF_NEVER;
2792         op->o_time = slap_get_time();
2793         op->ors_tlimit = SLAP_NO_LIMIT;
2794
2795
2796         if ( uuids ) {
2797                 Filter uf;
2798                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2799                 int i;
2800
2801                 op->ors_attrsonly = 1;
2802                 op->ors_attrs = slap_anlist_no_attrs;
2803                 op->ors_limit = NULL;
2804                 op->ors_filter = &uf;
2805
2806                 uf.f_ava = &eq;
2807                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2808                 uf.f_next = NULL;
2809                 uf.f_choice = LDAP_FILTER_EQUALITY;
2810                 si->si_refreshDelete |= NP_DELETE_ONE;
2811
2812                 for (i=0; uuids[i].bv_val; i++) {
2813                         op->ors_slimit = 1;
2814                         uf.f_av_value = uuids[i];
2815                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2816                         rc = be->be_search( op, &rs_search );
2817                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2818                 }
2819                 si->si_refreshDelete ^= NP_DELETE_ONE;
2820         } else {
2821                 Filter *cf, *of;
2822                 Filter mmf[2];
2823                 AttributeAssertion mmaa;
2824
2825                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2826                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2827                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2828                 op->ors_attrs = an;
2829                 op->ors_slimit = SLAP_NO_LIMIT;
2830                 op->ors_tlimit = SLAP_NO_LIMIT;
2831                 op->ors_limit = NULL;
2832                 op->ors_attrsonly = 0;
2833                 op->ors_filter = filter_dup( si->si_filter, op->o_tmpmemctx );
2834                 /* In multimaster, updates can continue to arrive while
2835                  * we're searching. Limit the search result to entries
2836                  * older than our newest cookie CSN.
2837                  */
2838                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2839                         Filter *f;
2840                         int i;
2841
2842                         f = mmf;
2843                         f->f_choice = LDAP_FILTER_AND;
2844                         f->f_next = op->ors_filter;
2845                         f->f_and = f+1;
2846                         of = f->f_and;
2847                         f = of;
2848                         f->f_choice = LDAP_FILTER_LE;
2849                         f->f_ava = &mmaa;
2850                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2851                         f->f_next = NULL;
2852                         BER_BVZERO( &f->f_av_value );
2853                         for ( i=0; i<sc->numcsns; i++ ) {
2854                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2855                                         f->f_av_value = sc->ctxcsn[i];
2856                         }
2857                         of = op->ors_filter;
2858                         op->ors_filter = mmf;
2859                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2860                 } else {
2861                         cf = NULL;
2862                         op->ors_filterstr = si->si_filterstr;
2863                 }
2864                 op->o_nocaching = 1;
2865
2866
2867                 rc = be->be_search( op, &rs_search );
2868                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2869                         op->ors_filter = of;
2870                 }
2871                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2872                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2873                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2874                 }
2875
2876         }
2877
2878         op->o_nocaching = 0;
2879
2880         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2881
2882                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2883                         csn = sc->ctxcsn[m];
2884                 } else {
2885                         csn = si->si_syncCookie.ctxcsn[0];
2886                 }
2887
2888                 op->o_bd = si->si_wbe;
2889                 slap_queue_csn( op, &csn );
2890
2891                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2892                 while ( np_list != NULL ) {
2893                         LDAP_LIST_REMOVE( np_list, npe_link );
2894                         np_prev = np_list;
2895                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2896                         op->o_tag = LDAP_REQ_DELETE;
2897                         op->o_callback = &cb;
2898                         cb.sc_response = null_callback;
2899                         cb.sc_private = si;
2900                         op->o_req_dn = *np_prev->npe_name;
2901                         op->o_req_ndn = *np_prev->npe_nname;
2902                         rc = op->o_bd->be_delete( op, &rs_delete );
2903                         Debug( LDAP_DEBUG_SYNC,
2904                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2905                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2906
2907                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2908                                 Modifications mod1, mod2;
2909                                 mod1.sml_op = LDAP_MOD_REPLACE;
2910                                 mod1.sml_flags = 0;
2911                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2912                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2913                                 mod1.sml_numvals = 2;
2914                                 mod1.sml_values = &gcbva[0];
2915                                 mod1.sml_nvalues = NULL;
2916                                 mod1.sml_next = &mod2;
2917
2918                                 mod2.sml_op = LDAP_MOD_REPLACE;
2919                                 mod2.sml_flags = 0;
2920                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2921                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2922                                 mod2.sml_numvals = 1;
2923                                 mod2.sml_values = &gcbva[1];
2924                                 mod2.sml_nvalues = NULL;
2925                                 mod2.sml_next = NULL;
2926
2927                                 op->o_tag = LDAP_REQ_MODIFY;
2928                                 op->orm_modlist = &mod1;
2929
2930                                 rc = op->o_bd->be_modify( op, &rs_modify );
2931                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2932                         }
2933
2934                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2935                                         op->o_delete_glue_parent ) {
2936                                 op->o_delete_glue_parent = 0;
2937                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2938                                         slap_callback cb = { NULL };
2939                                         cb.sc_response = slap_null_cb;
2940                                         dnParent( &op->o_req_ndn, &pdn );
2941                                         op->o_req_dn = pdn;
2942                                         op->o_req_ndn = pdn;
2943                                         op->o_callback = &cb;
2944                                         /* give it a root privil ? */
2945                                         op->o_bd->be_delete( op, &rs_delete );
2946                                 } else {
2947                                         break;
2948                                 }
2949                         }
2950
2951                         op->o_delete_glue_parent = 0;
2952
2953                         ber_bvfree( np_prev->npe_name );
2954                         ber_bvfree( np_prev->npe_nname );
2955                         ch_free( np_prev );
2956
2957                         if ( slapd_shutdown ) {
2958                                 break;
2959                         }
2960                 }
2961
2962                 slap_graduate_commit_csn( op );
2963                 op->o_bd = be;
2964
2965                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2966                 BER_BVZERO( &op->o_csn );
2967         }
2968
2969         return;
2970 }
2971
2972 static int
2973 syncrepl_add_glue_ancestors(
2974         Operation* op,
2975         Entry *e )
2976 {
2977         Backend *be = op->o_bd;
2978         slap_callback cb = { NULL };
2979         Attribute       *a;
2980         int     rc;
2981         int suffrdns;
2982         int i;
2983         struct berval dn = BER_BVNULL;
2984         struct berval ndn = BER_BVNULL;
2985         Entry   *glue;
2986         SlapReply       rs_add = {REP_RESULT};
2987         struct berval   ptr, nptr;
2988         char            *comma;
2989
2990         op->o_tag = LDAP_REQ_ADD;
2991         op->o_callback = &cb;
2992         cb.sc_response = null_callback;
2993         cb.sc_private = NULL;
2994
2995         dn = e->e_name;
2996         ndn = e->e_nname;
2997
2998         /* count RDNs in suffix */
2999         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
3000                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
3001                         comma++;
3002                         ptr.bv_len -= comma - ptr.bv_val;
3003                         ptr.bv_val = comma;
3004                         i++;
3005                 }
3006                 suffrdns = i;
3007         } else {
3008                 /* suffix is "" */
3009                 suffrdns = 0;
3010         }
3011
3012         /* Start with BE suffix */
3013         ptr = dn;
3014         for ( i = 0; i < suffrdns; i++ ) {
3015                 comma = ber_bvrchr( &ptr, ',' );
3016                 if ( comma != NULL ) {
3017                         ptr.bv_len = comma - ptr.bv_val;
3018                 } else {
3019                         ptr.bv_len = 0;
3020                         break;
3021                 }
3022         }
3023
3024         if ( !BER_BVISEMPTY( &ptr ) ) {
3025                 dn.bv_len -= ptr.bv_len + 1;
3026                 dn.bv_val += ptr.bv_len + 1;
3027         }
3028
3029         /* the normalizedDNs are always the same length, no counting
3030          * required.
3031          */
3032         nptr = ndn;
3033         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
3034                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
3035                 ndn.bv_len = be->be_nsuffix[0].bv_len;
3036
3037                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
3038
3039         } else {
3040                 nptr.bv_len = 0;
3041         }
3042
3043         while ( ndn.bv_val > e->e_nname.bv_val ) {
3044                 glue = entry_alloc();
3045                 ber_dupbv( &glue->e_name, &dn );
3046                 ber_dupbv( &glue->e_nname, &ndn );
3047
3048                 a = attr_alloc( slap_schema.si_ad_objectClass );
3049
3050                 a->a_numvals = 2;
3051                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
3052                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
3053                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
3054                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
3055
3056                 a->a_nvals = a->a_vals;
3057
3058                 a->a_next = glue->e_attrs;
3059                 glue->e_attrs = a;
3060
3061                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
3062
3063                 a->a_numvals = 1;
3064                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
3065                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
3066                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
3067
3068                 a->a_nvals = a->a_vals;
3069
3070                 a->a_next = glue->e_attrs;
3071                 glue->e_attrs = a;
3072
3073                 op->o_req_dn = glue->e_name;
3074                 op->o_req_ndn = glue->e_nname;
3075                 op->ora_e = glue;
3076                 rc = be->be_add ( op, &rs_add );
3077                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
3078                         if ( op->ora_e == glue )
3079                                 be_entry_release_w( op, glue );
3080                 } else {
3081                 /* incl. ALREADY EXIST */
3082                         entry_free( glue );
3083                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
3084                                 entry_free( e );
3085                                 return rc;
3086                         }
3087                 }
3088
3089                 /* Move to next child */
3090                 comma = ber_bvrchr( &ptr, ',' );
3091                 if ( comma == NULL ) {
3092                         break;
3093                 }
3094                 ptr.bv_len = comma - ptr.bv_val;
3095
3096                 dn.bv_val = ++comma;
3097                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
3098
3099                 comma = ber_bvrchr( &nptr, ',' );
3100                 assert( comma != NULL );
3101                 nptr.bv_len = comma - nptr.bv_val;
3102
3103                 ndn.bv_val = ++comma;
3104                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
3105         }
3106
3107         return rc;
3108 }
3109
3110 int
3111 syncrepl_add_glue(
3112         Operation* op,
3113         Entry *e )
3114 {
3115         slap_callback cb = { NULL };
3116         int     rc;
3117         Backend *be = op->o_bd;
3118         SlapReply       rs_add = {REP_RESULT};
3119
3120         rc = syncrepl_add_glue_ancestors( op, e );
3121         switch ( rc ) {
3122         case LDAP_SUCCESS:
3123         case LDAP_ALREADY_EXISTS:
3124                 break;
3125
3126         default:
3127                 return rc;
3128         }
3129
3130         op->o_tag = LDAP_REQ_ADD;
3131         op->o_callback = &cb;
3132         cb.sc_response = null_callback;
3133         cb.sc_private = NULL;
3134
3135         op->o_req_dn = e->e_name;
3136         op->o_req_ndn = e->e_nname;
3137         op->ora_e = e;
3138         rc = be->be_add ( op, &rs_add );
3139         if ( rs_add.sr_err == LDAP_SUCCESS ) {
3140                 if ( op->ora_e == e )
3141                         be_entry_release_w( op, e );
3142         } else {
3143                 entry_free( e );
3144         }
3145
3146         return rc;
3147 }
3148
3149 static int
3150 syncrepl_updateCookie(
3151         syncinfo_t *si,
3152         Operation *op,
3153         struct sync_cookie *syncCookie )
3154 {
3155         Backend *be = op->o_bd;
3156         Modifications mod;
3157         struct berval first = BER_BVNULL;
3158 #ifdef CHECK_CSN
3159         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
3160 #endif
3161
3162         int rc, i, j, changed = 0;
3163         ber_len_t len;
3164
3165         slap_callback cb = { NULL };
3166         SlapReply       rs_modify = {REP_RESULT};
3167
3168         mod.sml_op = LDAP_MOD_REPLACE;
3169         mod.sml_desc = slap_schema.si_ad_contextCSN;
3170         mod.sml_type = mod.sml_desc->ad_cname;
3171         mod.sml_flags = SLAP_MOD_INTERNAL;
3172         mod.sml_nvalues = NULL;
3173         mod.sml_next = NULL;
3174
3175         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
3176
3177 #ifdef CHECK_CSN
3178         for ( i=0; i<syncCookie->numcsns; i++ ) {
3179                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
3180         }
3181         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3182                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3183         }
3184 #endif
3185
3186         /* clone the cookieState CSNs so we can Replace the whole thing */
3187         mod.sml_numvals = si->si_cookieState->cs_num;
3188         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
3189         for ( i=0; i<mod.sml_numvals; i++ )
3190                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
3191         BER_BVZERO( &mod.sml_values[i] );
3192
3193         /* find any CSNs in the syncCookie that are newer than the cookieState */
3194         for ( i=0; i<syncCookie->numcsns; i++ ) {
3195                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
3196                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
3197                                 continue;
3198                         len = syncCookie->ctxcsn[i].bv_len;
3199                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
3200                                 len = si->si_cookieState->cs_vals[j].bv_len;
3201                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
3202                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
3203                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
3204                                 changed = 1;
3205                                 if ( BER_BVISNULL( &first ) ) {
3206                                         first = syncCookie->ctxcsn[i];
3207
3208                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3209                                 {
3210                                         first = syncCookie->ctxcsn[i];
3211                                 }
3212                         }
3213                         break;
3214                 }
3215                 /* there was no match for this SID, it's a new CSN */
3216                 if ( j == si->si_cookieState->cs_num ) {
3217                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
3218                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
3219                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
3220                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
3221                         if ( BER_BVISNULL( &first ) ) {
3222                                 first = syncCookie->ctxcsn[i];
3223                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3224                         {
3225                                 first = syncCookie->ctxcsn[i];
3226                         }
3227                         changed = 1;
3228                 }
3229         }
3230         /* Should never happen, ITS#5065 */
3231         if ( BER_BVISNULL( &first ) || !changed ) {
3232                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3233                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3234                 return 0;
3235         }
3236         op->o_bd = si->si_wbe;
3237         slap_queue_csn( op, &first );
3238
3239         op->o_tag = LDAP_REQ_MODIFY;
3240
3241         cb.sc_response = null_callback;
3242         cb.sc_private = si;
3243
3244         op->o_callback = &cb;
3245         op->o_req_dn = si->si_contextdn;
3246         op->o_req_ndn = si->si_contextdn;
3247
3248         /* update contextCSN */
3249         op->o_dont_replicate = 1;
3250
3251         op->orm_modlist = &mod;
3252         op->orm_no_opattrs = 1;
3253         rc = op->o_bd->be_modify( op, &rs_modify );
3254
3255         if ( rs_modify.sr_err == LDAP_NO_SUCH_OBJECT &&
3256                 SLAP_SYNC_SUBENTRY( op->o_bd )) {
3257                 const char      *text;
3258                 char txtbuf[SLAP_TEXT_BUFLEN];
3259                 size_t textlen = sizeof txtbuf;
3260                 Entry *e = slap_create_context_csn_entry( op->o_bd, NULL );
3261                 rc = slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
3262                 op->ora_e = e;
3263                 rc = op->o_bd->be_add( op, &rs_modify );
3264                 if ( e == op->ora_e )
3265                         be_entry_release_w( op, op->ora_e );
3266         }
3267
3268         op->orm_no_opattrs = 0;
3269         op->o_dont_replicate = 0;
3270
3271         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
3272                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
3273                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
3274                 /* If we replaced any old values */
3275                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3276                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
3277                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
3278                                                 &mod.sml_values[i] );
3279                 }
3280                 /* Handle any added values */
3281                 if ( i < mod.sml_numvals ) {
3282                         si->si_cookieState->cs_num = mod.sml_numvals;
3283                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
3284                         free( si->si_cookieState->cs_sids );
3285                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
3286                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
3287                 }
3288
3289                 si->si_cookieState->cs_age++;
3290                 si->si_cookieAge = si->si_cookieState->cs_age;
3291         } else {
3292                 Debug( LDAP_DEBUG_ANY,
3293                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3294                         si->si_ridtxt, rs_modify.sr_err, 0 );
3295         }
3296         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3297
3298         op->o_bd = be;
3299         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3300         BER_BVZERO( &op->o_csn );
3301         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3302         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3303
3304 #ifdef CHECK_CSN
3305         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3306                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3307         }
3308 #endif
3309
3310         return rc;
3311 }
3312
3313 /* Compare the attribute from the old entry to the one in the new
3314  * entry. The Modifications from the new entry will either be left
3315  * in place, or changed to an Add or Delete as needed.
3316  */
3317 static void
3318 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3319         Modifications ***mret, Modifications ***mcur )
3320 {
3321         int i, j;
3322         Modifications *mod, **modtail;
3323
3324         modtail = *mret;
3325
3326         if ( old ) {
3327                 int n, o, nn, no;
3328                 struct berval **adds, **dels;
3329                 /* count old and new */
3330                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3331                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3332
3333                 /* there MUST be both old and new values */
3334                 assert( o != 0 );
3335                 assert( n != 0 );
3336                 j = 0;
3337
3338                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3339                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3340
3341                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3342                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3343
3344                 nn = n; no = o;
3345
3346                 for ( i=0; i<o; i++ ) {
3347                         for ( j=0; j<n; j++ ) {
3348                                 if ( !adds[j] )
3349                                         continue;
3350                                 if ( bvmatch( dels[i], adds[j] ) ) {
3351                                         no--;
3352                                         nn--;
3353                                         adds[j] = NULL;
3354                                         dels[i] = NULL;
3355                                         break;
3356                                 }
3357                         }
3358                 }
3359
3360                 /* Don't delete/add an objectClass, always use the replace op.
3361                  * Modify would fail if provider has replaced entry with a new,
3362                  * and the new explicitly includes a superior of a class that was
3363                  * only included implicitly in the old entry.  Ref ITS#5517.
3364                  *
3365                  * Also use replace op if attr has no equality matching rule.
3366                  * (ITS#5781)
3367                  */
3368                 if ( ( nn || ( no > 0 && no < o ) ) &&
3369                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3370                          !old->a_desc->ad_type->sat_equality ) )
3371                 {
3372                         no = o;
3373                 }
3374
3375                 i = j;
3376                 /* all old values were deleted, just use the replace op */
3377                 if ( no == o ) {
3378                         i = j-1;
3379                 } else if ( no ) {
3380                 /* delete some values */
3381                         mod = ch_malloc( sizeof( Modifications ) );
3382                         mod->sml_op = LDAP_MOD_DELETE;
3383                         mod->sml_flags = 0;
3384                         mod->sml_desc = old->a_desc;
3385                         mod->sml_type = mod->sml_desc->ad_cname;
3386                         mod->sml_numvals = no;
3387                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3388                         if ( old->a_vals != old->a_nvals ) {
3389                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3390                         } else {
3391                                 mod->sml_nvalues = NULL;
3392                         }
3393                         j = 0;
3394                         for ( i = 0; i < o; i++ ) {
3395                                 if ( !dels[i] ) continue;
3396                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3397                                 if ( mod->sml_nvalues ) {
3398                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3399                                 }
3400                                 j++;
3401                         }
3402                         BER_BVZERO( &mod->sml_values[j] );
3403                         if ( mod->sml_nvalues ) {
3404                                 BER_BVZERO( &mod->sml_nvalues[j] );
3405                         }
3406                         *modtail = mod;
3407                         modtail = &mod->sml_next;
3408                         i = j;
3409                 }
3410                 op->o_tmpfree( dels, op->o_tmpmemctx );
3411                 /* some values were added */
3412                 if ( nn && no < o ) {
3413                         mod = ch_malloc( sizeof( Modifications ) );
3414                         mod->sml_op = LDAP_MOD_ADD;
3415                         mod->sml_flags = 0;
3416                         mod->sml_desc = old->a_desc;
3417                         mod->sml_type = mod->sml_desc->ad_cname;
3418                         mod->sml_numvals = nn;
3419                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3420                         if ( old->a_vals != old->a_nvals ) {
3421                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3422                         } else {
3423                                 mod->sml_nvalues = NULL;
3424                         }
3425                         j = 0;
3426                         for ( i = 0; i < n; i++ ) {
3427                                 if ( !adds[i] ) continue;
3428                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3429                                 if ( mod->sml_nvalues ) {
3430                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3431                                 }
3432                                 j++;
3433                         }
3434                         BER_BVZERO( &mod->sml_values[j] );
3435                         if ( mod->sml_nvalues ) {
3436                                 BER_BVZERO( &mod->sml_nvalues[j] );
3437                         }
3438                         *modtail = mod;
3439                         modtail = &mod->sml_next;
3440                         i = j;
3441                 }
3442                 op->o_tmpfree( adds, op->o_tmpmemctx );
3443         } else {
3444                 /* new attr, just use the new mod */
3445                 i = 0;
3446                 j = 1;
3447         }
3448         /* advance to next element */
3449         mod = **mcur;
3450         if ( mod ) {
3451                 if ( i != j ) {
3452                         **mcur = mod->sml_next;
3453                         *modtail = mod;
3454                         modtail = &mod->sml_next;
3455                 } else {
3456                         *mcur = &mod->sml_next;
3457                 }
3458         }
3459         *mret = modtail;
3460 }
3461
3462 /* Generate a set of modifications to change the old entry into the
3463  * new one. On input ml is a list of modifications equivalent to
3464  * the new entry. It will be massaged and the result will be stored
3465  * in mods.
3466  */
3467 void syncrepl_diff_entry( Operation *op, Attribute *old, Attribute *new,
3468         Modifications **mods, Modifications **ml, int is_ctx)
3469 {
3470         Modifications **modtail = mods;
3471
3472         /* We assume that attributes are saved in the same order
3473          * in the remote and local databases. So if we walk through
3474          * the attributeDescriptions one by one they should match in
3475          * lock step. If not, look for an add or delete.
3476          */
3477         while ( old && new )
3478         {
3479                 /* If we've seen this before, use its mod now */
3480                 if ( new->a_flags & SLAP_ATTR_IXADD ) {
3481                         attr_cmp( op, NULL, new, &modtail, &ml );
3482                         new = new->a_next;
3483                         continue;
3484                 }
3485                 /* Skip contextCSN */
3486                 if ( is_ctx && old->a_desc ==
3487                         slap_schema.si_ad_contextCSN ) {
3488                         old = old->a_next;
3489                         continue;
3490                 }
3491
3492                 if ( old->a_desc != new->a_desc ) {
3493                         Modifications *mod;
3494                         Attribute *tmp;
3495
3496                         /* If it's just been re-added later,
3497                          * remember that we've seen it.
3498                          */
3499                         tmp = attr_find( new, old->a_desc );
3500                         if ( tmp ) {
3501                                 tmp->a_flags |= SLAP_ATTR_IXADD;
3502                         } else {
3503                                 /* If it's a new attribute, pull it in.
3504                                  */
3505                                 tmp = attr_find( old, new->a_desc );
3506                                 if ( !tmp ) {
3507                                         attr_cmp( op, NULL, new, &modtail, &ml );
3508                                         new = new->a_next;
3509                                         continue;
3510                                 }
3511                                 /* Delete old attr */
3512                                 mod = ch_malloc( sizeof( Modifications ) );
3513                                 mod->sml_op = LDAP_MOD_DELETE;
3514                                 mod->sml_flags = 0;
3515                                 mod->sml_desc = old->a_desc;
3516                                 mod->sml_type = mod->sml_desc->ad_cname;
3517                                 mod->sml_numvals = 0;
3518                                 mod->sml_values = NULL;
3519                                 mod->sml_nvalues = NULL;
3520                                 *modtail = mod;
3521                                 modtail = &mod->sml_next;
3522                         }
3523                         old = old->a_next;
3524                         continue;
3525                 }
3526                 /* kludge - always update modifiersName so that it
3527                  * stays co-located with the other mod opattrs. But only
3528                  * if we know there are other valid mods.
3529                  */
3530                 if ( *mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3531                         old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3532                         attr_cmp( op, NULL, new, &modtail, &ml );
3533                 else
3534                         attr_cmp( op, old, new, &modtail, &ml );
3535                 new = new->a_next;
3536                 old = old->a_next;
3537         }
3538         *modtail = *ml;
3539         *ml = NULL;
3540 }
3541
3542 static int
3543 dn_callback(
3544         Operation*      op,
3545         SlapReply*      rs )
3546 {
3547         dninfo *dni = op->o_callback->sc_private;
3548
3549         if ( rs->sr_type == REP_SEARCH ) {
3550                 if ( !BER_BVISNULL( &dni->dn ) ) {
3551                         Debug( LDAP_DEBUG_ANY,
3552                                 "dn_callback : consistency error - "
3553                                 "entryUUID is not unique\n", 0, 0, 0 );
3554                 } else {
3555                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3556                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3557                         /* If there is a new entry, see if it differs from the old.
3558                          * We compare the non-normalized values so that cosmetic changes
3559                          * in the provider are always propagated.
3560                          */
3561                         if ( dni->new_entry ) {
3562                                 Modifications **modtail, **ml;
3563                                 Attribute *old, *new;
3564                                 struct berval old_rdn, new_rdn;
3565                                 struct berval old_p, new_p;
3566                                 int is_ctx, new_sup = 0;
3567
3568                                 /* If old entry is not a glue entry, make sure new entry
3569                                  * is actually newer than old entry
3570                                  */
3571                                 if ( !is_entry_glue( rs->sr_entry )) {
3572                                         old = attr_find( rs->sr_entry->e_attrs,
3573                                                 slap_schema.si_ad_entryCSN );
3574                                         new = attr_find( dni->new_entry->e_attrs,
3575                                                 slap_schema.si_ad_entryCSN );
3576                                         if ( new && old ) {
3577                                                 int rc;
3578                                                 ber_len_t len = old->a_vals[0].bv_len;
3579                                                 if ( len > new->a_vals[0].bv_len )
3580                                                         len = new->a_vals[0].bv_len;
3581                                                 rc = memcmp( old->a_vals[0].bv_val,
3582                                                         new->a_vals[0].bv_val, len );
3583                                                 if ( rc > 0 ) {
3584                                                         Debug( LDAP_DEBUG_SYNC,
3585                                                                 "dn_callback : new entry is older than ours "
3586                                                                 "%s ours %s, new %s\n",
3587                                                                 rs->sr_entry->e_name.bv_val,
3588                                                                 old->a_vals[0].bv_val,
3589                                                                 new->a_vals[0].bv_val );
3590                                                         return LDAP_SUCCESS;
3591                                                 } else if ( rc == 0 ) {
3592                                                         Debug( LDAP_DEBUG_SYNC,
3593                                                                 "dn_callback : entries have identical CSN "
3594                                                                 "%s %s\n",
3595                                                                 rs->sr_entry->e_name.bv_val,
3596                                                                 old->a_vals[0].bv_val, 0 );
3597                                                         return LDAP_SUCCESS;
3598                                                 }
3599                                         }
3600                                 }
3601
3602                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3603                                         &op->o_bd->be_nsuffix[0] );
3604
3605                                 /* Did the DN change?
3606                                  * case changes in the parent are ignored,
3607                                  * we only want to know if the RDN was
3608                                  * actually changed.
3609                                  */
3610                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3611                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3612                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3613                                 dnParent( &dni->new_entry->e_nname, &new_p );
3614
3615                                 new_sup = !dn_match( &old_p, &new_p );
3616                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3617                                 {
3618                                         struct berval oldRDN, oldVal;
3619                                         AttributeDescription *ad = NULL;
3620                                         int oldpos, newpos;
3621                                         Attribute *a;
3622
3623                                         dni->renamed = 1;
3624                                         if ( new_sup )
3625                                                 dni->nnewSup = new_p;
3626
3627                                         /* See if the oldRDN was deleted */
3628                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3629                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3630                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3631                                                 oldRDN.bv_val );
3632                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3633                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3634                                         dni->oldDesc = ad;
3635                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3636                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3637                                         dni->oldNattr = a;
3638                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3639                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3640                                         if ( !a || oldpos != newpos || attr_valfind( a,
3641                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3642                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3643                                                 SLAP_MR_VALUE_OF_SYNTAX,
3644                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3645                                         {
3646                                                 dni->delOldRDN = 1;
3647                                         }
3648                                         /* Get the newRDN's desc */
3649                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3650                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3651                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3652                                         ad = NULL;
3653                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3654                                         dni->newDesc = ad;
3655
3656                                         /* A ModDN has happened, but in Refresh mode other
3657                                          * changes may have occurred before we picked it up.
3658                                          * So fallthru to regular Modify processing.
3659                                          */
3660                                 }
3661
3662                                 syncrepl_diff_entry( op, rs->sr_entry->e_attrs,
3663                                         dni->new_entry->e_attrs, &dni->mods, dni->modlist,
3664                                         is_ctx );
3665                         }
3666                 }
3667         } else if ( rs->sr_type == REP_RESULT ) {
3668                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3669                         Debug( LDAP_DEBUG_ANY,
3670                                 "dn_callback : consistency error - "
3671                                 "entryUUID is not unique\n", 0, 0, 0 );
3672                 }
3673         }
3674
3675         return LDAP_SUCCESS;
3676 }
3677
3678 static int
3679 nonpresent_callback(
3680         Operation*      op,
3681         SlapReply*      rs )
3682 {
3683         syncinfo_t *si = op->o_callback->sc_private;
3684         Attribute *a;
3685         int count = 0;
3686         struct berval* present_uuid = NULL;
3687         struct nonpresent_entry *np_entry;
3688
3689         if ( rs->sr_type == REP_RESULT ) {
3690                 count = avl_free( si->si_presentlist, ch_free );
3691                 si->si_presentlist = NULL;
3692
3693         } else if ( rs->sr_type == REP_SEARCH ) {
3694                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3695                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3696
3697                         if ( a ) {
3698                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3699                                         syncuuid_cmp );
3700                         }
3701
3702                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3703                                 char buf[sizeof("rid=999 non")];
3704
3705                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3706                                         present_uuid ? "" : "non" );
3707
3708                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3709                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3710                         }
3711
3712                         if ( a == NULL ) return 0;
3713                 }
3714
3715                 if ( present_uuid == NULL ) {
3716                         np_entry = (struct nonpresent_entry *)
3717                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3718                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3719                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3720                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3721
3722                 } else {
3723                         avl_delete( &si->si_presentlist,
3724                                 &a->a_nvals[0], syncuuid_cmp );
3725                         ch_free( present_uuid );
3726                 }
3727         }
3728         return LDAP_SUCCESS;
3729 }
3730
3731 static int
3732 null_callback(
3733         Operation*      op,
3734         SlapReply*      rs )
3735 {
3736         if ( rs->sr_err != LDAP_SUCCESS &&
3737                 rs->sr_err != LDAP_REFERRAL &&
3738                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3739                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3740                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3741         {
3742                 Debug( LDAP_DEBUG_ANY,
3743                         "null_callback : error code 0x%x\n",
3744                         rs->sr_err, 0, 0 );
3745         }
3746         return LDAP_SUCCESS;
3747 }
3748
3749 static struct berval *
3750 slap_uuidstr_from_normalized(
3751         struct berval* uuidstr,
3752         struct berval* normalized,
3753         void *ctx )
3754 {
3755 #if 0
3756         struct berval *new;
3757         unsigned char nibble;
3758         int i, d = 0;
3759
3760         if ( normalized == NULL ) return NULL;
3761         if ( normalized->bv_len != 16 ) return NULL;
3762
3763         if ( uuidstr ) {
3764                 new = uuidstr;
3765         } else {
3766                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3767                 if ( new == NULL ) {
3768                         return NULL;
3769                 }
3770         }
3771
3772         new->bv_len = 36;
3773
3774         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3775                 if ( new != uuidstr ) {
3776                         slap_sl_free( new, ctx );
3777                 }
3778                 return NULL;
3779         }
3780
3781         for ( i = 0; i < 16; i++ ) {
3782                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3783                         new->bv_val[(i<<1)+d] = '-';
3784                         d += 1;
3785                 }
3786
3787                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3788                 if ( nibble < 10 ) {
3789                         new->bv_val[(i<<1)+d] = nibble + '0';
3790                 } else {
3791                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3792                 }
3793
3794                 nibble = (normalized->bv_val[i]) & 0xF;
3795                 if ( nibble < 10 ) {
3796                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3797                 } else {
3798                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3799                 }
3800         }
3801
3802         new->bv_val[new->bv_len] = '\0';
3803         return new;
3804 #endif
3805
3806         struct berval   *new;
3807         int             rc = 0;
3808
3809         if ( normalized == NULL ) return NULL;
3810         if ( normalized->bv_len != 16 ) return NULL;
3811
3812         if ( uuidstr ) {
3813                 new = uuidstr;
3814
3815         } else {
3816                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3817                 if ( new == NULL ) {
3818                         return NULL;
3819                 }
3820         }
3821
3822         new->bv_len = 36;
3823
3824         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3825                 rc = 1;
3826                 goto done;
3827         }
3828
3829         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3830                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3831
3832 done:;
3833         if ( rc == -1 ) {
3834                 if ( new != NULL ) {
3835                         if ( new->bv_val != NULL ) {
3836                                 slap_sl_free( new->bv_val, ctx );
3837                         }
3838
3839                         if ( new != uuidstr ) {
3840                                 slap_sl_free( new, ctx );
3841                         }
3842                 }
3843                 new = NULL;
3844
3845         } else {
3846                 new->bv_len = rc;
3847         }
3848
3849         return new;
3850 }
3851
3852 static int
3853 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3854 {
3855         const struct berval *uuid1 = v_uuid1;
3856         const struct berval *uuid2 = v_uuid2;
3857         int rc = uuid1->bv_len - uuid2->bv_len;
3858         if ( rc ) return rc;
3859         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3860 }
3861
3862 void
3863 syncinfo_free( syncinfo_t *sie, int free_all )
3864 {
3865         syncinfo_t *si_next;
3866
3867         Debug( LDAP_DEBUG_TRACE, "syncinfo_free: %s\n",
3868                 sie->si_ridtxt, 0, 0 );
3869
3870         do {
3871                 si_next = sie->si_next;
3872
3873                 if ( sie->si_ld ) {
3874                         if ( sie->si_conn ) {
3875                                 connection_client_stop( sie->si_conn );
3876                                 sie->si_conn = NULL;
3877                         }
3878                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3879                 }
3880
3881                 if ( sie->si_re ) {
3882                         struct re_s             *re = sie->si_re;
3883                         sie->si_re = NULL;
3884
3885                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3886                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
3887                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
3888                         ldap_pvt_runqueue_remove( &slapd_rq, re );
3889                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3890                 }
3891
3892                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3893
3894                 bindconf_free( &sie->si_bindconf );
3895
3896                 if ( sie->si_filterstr.bv_val ) {
3897                         ch_free( sie->si_filterstr.bv_val );
3898                 }
3899                 if ( sie->si_filter ) {
3900                         filter_free( sie->si_filter );
3901                 }
3902                 if ( sie->si_logfilterstr.bv_val ) {
3903                         ch_free( sie->si_logfilterstr.bv_val );
3904                 }
3905                 if ( sie->si_base.bv_val ) {
3906                         ch_free( sie->si_base.bv_val );
3907                 }
3908                 if ( sie->si_logbase.bv_val ) {
3909                         ch_free( sie->si_logbase.bv_val );
3910                 }
3911                 if ( sie->si_be && SLAP_SYNC_SUBENTRY( sie->si_be )) {
3912                         ch_free( sie->si_contextdn.bv_val );
3913                 }
3914                 if ( sie->si_attrs ) {
3915                         int i = 0;
3916                         while ( sie->si_attrs[i] != NULL ) {
3917                                 ch_free( sie->si_attrs[i] );
3918                                 i++;
3919                         }
3920                         ch_free( sie->si_attrs );
3921                 }
3922                 if ( sie->si_exattrs ) {
3923                         int i = 0;
3924                         while ( sie->si_exattrs[i] != NULL ) {
3925                                 ch_free( sie->si_exattrs[i] );
3926                                 i++;
3927                         }
3928                         ch_free( sie->si_exattrs );
3929                 }
3930                 if ( sie->si_anlist ) {
3931                         int i = 0;
3932                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3933                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3934                                 i++;
3935                         }
3936                         ch_free( sie->si_anlist );
3937                 }
3938                 if ( sie->si_exanlist ) {
3939                         int i = 0;
3940                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3941                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3942                                 i++;
3943                         }
3944                         ch_free( sie->si_exanlist );
3945                 }
3946                 if ( sie->si_retryinterval ) {
3947                         ch_free( sie->si_retryinterval );
3948                 }
3949                 if ( sie->si_retrynum ) {
3950                         ch_free( sie->si_retrynum );
3951                 }
3952                 if ( sie->si_retrynum_init ) {
3953                         ch_free( sie->si_retrynum_init );
3954                 }
3955                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3956                 if ( sie->si_presentlist ) {
3957                     avl_free( sie->si_presentlist, ch_free );
3958                 }
3959                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3960                         struct nonpresent_entry* npe;
3961                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3962                         LDAP_LIST_REMOVE( npe, npe_link );
3963                         if ( npe->npe_name ) {
3964                                 if ( npe->npe_name->bv_val ) {
3965                                         ch_free( npe->npe_name->bv_val );
3966                                 }
3967                                 ch_free( npe->npe_name );
3968                         }
3969                         if ( npe->npe_nname ) {
3970                                 if ( npe->npe_nname->bv_val ) {
3971                                         ch_free( npe->npe_nname->bv_val );
3972                                 }
3973                                 ch_free( npe->npe_nname );
3974                         }
3975                         ch_free( npe );
3976                 }
3977                 if ( sie->si_cookieState ) {
3978                         sie->si_cookieState->cs_ref--;
3979                         if ( !sie->si_cookieState->cs_ref ) {
3980                                 ch_free( sie->si_cookieState->cs_sids );
3981                                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3982                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3983                                 ch_free( sie->si_cookieState->cs_psids );
3984                                 ber_bvarray_free( sie->si_cookieState->cs_pvals );
3985                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_pmutex );
3986                                 ch_free( sie->si_cookieState );
3987                         }
3988                 }
3989                 ch_free( sie );
3990                 sie = si_next;
3991         } while ( free_all && si_next );
3992 }
3993
3994 #ifdef ENABLE_REWRITE
3995 static int
3996 config_suffixm( ConfigArgs *c, syncinfo_t *si )
3997 {
3998         char *argvEngine[] = { "rewriteEngine", "on", NULL };
3999         char *argvContext[] = { "rewriteContext", SUFFIXM_CTX, NULL };
4000         char *argvRule[] = { "rewriteRule", NULL, si->si_suffixm.bv_val, ":", NULL };
4001         char *vnc;
4002         int rc;
4003
4004         if ( si->si_rewrite )
4005                 rewrite_info_delete( &si->si_rewrite );
4006         si->si_rewrite = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
4007
4008         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvEngine );
4009         if ( rc != LDAP_SUCCESS )
4010                 return rc;
4011
4012         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvContext );
4013         if ( rc != LDAP_SUCCESS )
4014                 return rc;
4015
4016         vnc = ch_malloc( si->si_base.bv_len + 2 );
4017         lutil_strcopy( lutil_strcopy( vnc, si->si_base.bv_val ), "$" );
4018
4019         argvRule[1] = vnc;
4020         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 4, argvRule );
4021         ch_free( vnc );
4022         return rc;
4023 }
4024 #endif
4025
4026 /* NOTE: used & documented in slapd.conf(5) */
4027 #define IDSTR                   "rid"
4028 #define PROVIDERSTR             "provider"
4029 #define SCHEMASTR               "schemachecking"
4030 #define FILTERSTR               "filter"
4031 #define SEARCHBASESTR           "searchbase"
4032 #define SCOPESTR                "scope"
4033 #define ATTRSONLYSTR            "attrsonly"
4034 #define ATTRSSTR                "attrs"
4035 #define TYPESTR                 "type"
4036 #define INTERVALSTR             "interval"
4037 #define RETRYSTR                "retry"
4038 #define SLIMITSTR               "sizelimit"
4039 #define TLIMITSTR               "timelimit"
4040 #define SYNCDATASTR             "syncdata"
4041 #define LOGBASESTR              "logbase"
4042 #define LOGFILTERSTR    "logfilter"
4043 #define SUFFIXMSTR              "suffixmassage"
4044
4045 /* FIXME: undocumented */
4046 #define EXATTRSSTR              "exattrs"
4047 #define MANAGEDSAITSTR          "manageDSAit"
4048
4049 /* mandatory */
4050 enum {
4051         GOT_RID                 = 0x00000001U,
4052         GOT_PROVIDER            = 0x00000002U,
4053         GOT_SCHEMACHECKING      = 0x00000004U,
4054         GOT_FILTER              = 0x00000008U,
4055         GOT_SEARCHBASE          = 0x00000010U,
4056         GOT_SCOPE               = 0x00000020U,
4057         GOT_ATTRSONLY           = 0x00000040U,
4058         GOT_ATTRS               = 0x00000080U,
4059         GOT_TYPE                = 0x00000100U,
4060         GOT_INTERVAL            = 0x00000200U,
4061         GOT_RETRY               = 0x00000400U,
4062         GOT_SLIMIT              = 0x00000800U,
4063         GOT_TLIMIT              = 0x00001000U,
4064         GOT_SYNCDATA            = 0x00002000U,
4065         GOT_LOGBASE             = 0x00004000U,
4066         GOT_LOGFILTER           = 0x00008000U,
4067         GOT_EXATTRS             = 0x00010000U,
4068         GOT_MANAGEDSAIT         = 0x00020000U,
4069         GOT_BINDCONF            = 0x00040000U,
4070         GOT_SUFFIXM             = 0x00080000U,
4071
4072 /* check */
4073         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
4074 };
4075
4076 static slap_verbmasks datamodes[] = {
4077         { BER_BVC("default"), SYNCDATA_DEFAULT },
4078         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
4079         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
4080         { BER_BVNULL, 0 }
4081 };
4082
4083 static int
4084 parse_syncrepl_retry(
4085         ConfigArgs      *c,
4086         char            *arg,
4087         syncinfo_t      *si )
4088 {
4089         char **retry_list;
4090         int j, k, n;
4091         int use_default = 0;
4092
4093         char *val = arg + STRLENOF( RETRYSTR "=" );
4094         if ( strcasecmp( val, "undefined" ) == 0 ) {
4095                 val = "3600 +";
4096                 use_default = 1;
4097         }
4098
4099         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
4100         retry_list[0] = NULL;
4101
4102         slap_str2clist( &retry_list, val, " ,\t" );
4103
4104         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
4105         n = k / 2;
4106         if ( k % 2 ) {
4107                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4108                         "Error: incomplete syncrepl retry list" );
4109                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4110                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
4111                         ch_free( retry_list[k] );
4112                 }
4113                 ch_free( retry_list );
4114                 return 1;
4115         }
4116         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
4117         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
4118         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
4119         for ( j = 0; j < n; j++ ) {
4120                 unsigned long   t;
4121                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
4122                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4123                                 "Error: invalid retry interval \"%s\" (#%d)",
4124                                 retry_list[j*2], j );
4125                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4126                         /* do some cleanup */
4127                         return 1;
4128                 }
4129                 si->si_retryinterval[j] = (time_t)t;
4130                 if ( *retry_list[j*2+1] == '+' ) {
4131                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
4132                         si->si_retrynum[j] = RETRYNUM_FOREVER;
4133                         j++;
4134                         break;
4135                 } else {
4136                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
4137                                         || si->si_retrynum_init[j] <= 0 )
4138                         {
4139                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4140                                         "Error: invalid initial retry number \"%s\" (#%d)",
4141                                         retry_list[j*2+1], j );
4142                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4143                                 /* do some cleanup */
4144                                 return 1;
4145                         }
4146                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
4147                                         || si->si_retrynum[j] <= 0 )
4148                         {
4149                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4150                                         "Error: invalid retry number \"%s\" (#%d)",
4151                                         retry_list[j*2+1], j );
4152                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4153                                 /* do some cleanup */
4154                                 return 1;
4155                         }
4156                 }
4157         }
4158         if ( j < 1 || si->si_retrynum_init[j-1] != RETRYNUM_FOREVER ) {
4159                 Debug( LDAP_DEBUG_CONFIG,
4160                         "%s: syncrepl will eventually stop retrying; the \"retry\" parameter should end with a '+'.\n",
4161                         c->log, 0, 0 );
4162         }
4163
4164         si->si_retrynum_init[j] = RETRYNUM_TAIL;
4165         si->si_retrynum[j] = RETRYNUM_TAIL;
4166         si->si_retryinterval[j] = 0;
4167
4168         for ( k = 0; retry_list && retry_list[k]; k++ ) {
4169                 ch_free( retry_list[k] );
4170         }
4171         ch_free( retry_list );
4172         if ( !use_default ) {
4173                 si->si_got |= GOT_RETRY;
4174         }
4175
4176         return 0;
4177 }
4178
4179 static int
4180 parse_syncrepl_line(
4181         ConfigArgs      *c,
4182         syncinfo_t      *si )
4183 {
4184         int     i;
4185         char    *val;
4186
4187         for ( i = 1; i < c->argc; i++ ) {
4188                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
4189                                         STRLENOF( IDSTR "=" ) ) )
4190                 {
4191                         int tmp;
4192                         /* '\0' string terminator accounts for '=' */
4193                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
4194                         if ( lutil_atoi( &tmp, val ) != 0 ) {
4195                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4196                                         "Error: parse_syncrepl_line: "
4197                                         "unable to parse syncrepl id \"%s\"", val );
4198                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4199                                 return -1;
4200                         }
4201                         if ( tmp > SLAP_SYNC_RID_MAX || tmp < 0 ) {
4202                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4203                                         "Error: parse_syncrepl_line: "
4204                                         "syncrepl id %d is out of range [0..%d]", tmp, SLAP_SYNC_RID_MAX );
4205                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4206                                 return -1;
4207                         }
4208                         si->si_rid = tmp;
4209                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
4210                         si->si_got |= GOT_RID;
4211                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
4212                                         STRLENOF( PROVIDERSTR "=" ) ) )
4213                 {
4214                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
4215                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
4216 #ifdef HAVE_TLS
4217                         if ( ldap_is_ldaps_url( val ))
4218                                 si->si_bindconf.sb_tls_do_init = 1;
4219 #endif
4220                         si->si_got |= GOT_PROVIDER;
4221                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
4222                                         STRLENOF( SCHEMASTR "=" ) ) )
4223                 {
4224                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
4225                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
4226                                 si->si_schemachecking = 1;
4227                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
4228                                 si->si_schemachecking = 0;
4229                         } else {
4230                                 si->si_schemachecking = 1;
4231                         }
4232                         si->si_got |= GOT_SCHEMACHECKING;
4233                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
4234                                         STRLENOF( FILTERSTR "=" ) ) )
4235                 {
4236                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
4237                         if ( si->si_filterstr.bv_val )
4238                                 ch_free( si->si_filterstr.bv_val );
4239                         ber_str2bv( val, 0, 1, &si->si_filterstr );
4240                         si->si_got |= GOT_FILTER;
4241                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
4242                                         STRLENOF( LOGFILTERSTR "=" ) ) )
4243                 {
4244                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
4245                         if ( si->si_logfilterstr.bv_val )
4246                                 ch_free( si->si_logfilterstr.bv_val );
4247                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
4248                         si->si_got |= GOT_LOGFILTER;
4249                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
4250                                         STRLENOF( SEARCHBASESTR "=" ) ) )
4251                 {
4252                         struct berval   bv;
4253                         int             rc;
4254
4255                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
4256                         if ( si->si_base.bv_val ) {
4257                                 ch_free( si->si_base.bv_val );
4258                         }
4259                         ber_str2bv( val, 0, 0, &bv );
4260                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
4261                         if ( rc != LDAP_SUCCESS ) {
4262                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4263                                         "Invalid base DN \"%s\": %d (%s)",
4264                                         val, rc, ldap_err2string( rc ) );
4265                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4266                                 return -1;
4267                         }
4268                         si->si_got |= GOT_SEARCHBASE;
4269 #ifdef ENABLE_REWRITE
4270                 } else if ( !strncasecmp( c->argv[ i ], SUFFIXMSTR "=",
4271                                         STRLENOF( SUFFIXMSTR "=" ) ) )
4272                 {
4273                         struct berval   bv;
4274                         int             rc;
4275
4276                         val = c->argv[ i ] + STRLENOF( SUFFIXMSTR "=" );
4277                         if ( si->si_suffixm.bv_val ) {
4278                                 ch_free( si->si_suffixm.bv_val );
4279                         }
4280                         ber_str2bv( val, 0, 0, &bv );
4281                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_suffixm, NULL );
4282                         if ( rc != LDAP_SUCCESS ) {
4283                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4284                                         "Invalid massage DN \"%s\": %d (%s)",
4285                                         val, rc, ldap_err2string( rc ) );
4286                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4287                                 return -1;
4288                         }
4289                         if ( !be_issubordinate( c->be, &si->si_suffixm )) {
4290                                 ch_free( si->si_suffixm.bv_val );
4291                                 BER_BVZERO( &si->si_suffixm );
4292                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4293                                         "Massage DN \"%s\" is not within the database naming context",
4294                                         val );
4295                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4296                                 return -1;
4297                         }
4298                         si->si_got |= GOT_SUFFIXM;
4299 #endif
4300                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
4301                                         STRLENOF( LOGBASESTR "=" ) ) )
4302                 {
4303                         struct berval   bv;
4304                         int             rc;
4305
4306                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
4307                         if ( si->si_logbase.bv_val ) {
4308                                 ch_free( si->si_logbase.bv_val );
4309                         }
4310                         ber_str2bv( val, 0, 0, &bv );
4311                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
4312                         if ( rc != LDAP_SUCCESS ) {
4313                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4314                                         "Invalid logbase DN \"%s\": %d (%s)",
4315                                         val, rc, ldap_err2string( rc ) );
4316                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4317                                 return -1;
4318                         }
4319                         si->si_got |= GOT_LOGBASE;
4320                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
4321                                         STRLENOF( SCOPESTR "=" ) ) )
4322                 {
4323                         int j;
4324                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
4325                         j = ldap_pvt_str2scope( val );
4326                         if ( j < 0 ) {
4327                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4328                                         "Error: parse_syncrepl_line: "
4329                                         "unknown scope \"%s\"", val);
4330                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4331                                 return -1;
4332                         }
4333                         si->si_scope = j;
4334                         si->si_got |= GOT_SCOPE;
4335                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
4336                                         STRLENOF( ATTRSONLYSTR ) ) )
4337                 {
4338                         si->si_attrsonly = 1;
4339                         si->si_got |= GOT_ATTRSONLY;
4340                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
4341                                         STRLENOF( ATTRSSTR "=" ) ) )
4342                 {
4343                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
4344                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4345                                 char *attr_fname;
4346                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4347                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
4348                                 if ( si->si_anlist == NULL ) {
4349                                         ch_free( attr_fname );
4350                                         return -1;
4351                                 }
4352                                 si->si_anfile = attr_fname;
4353                         } else {
4354                                 char *str, *s, *next;
4355                                 const char *delimstr = " ,\t";
4356                                 str = ch_strdup( val );
4357                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
4358                                                 s != NULL;
4359                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
4360                                 {
4361                                         if ( strlen(s) == 1 && *s == '*' ) {
4362                                                 si->si_allattrs = 1;
4363                                                 val[ s - str ] = delimstr[0];
4364                                         }
4365                                         if ( strlen(s) == 1 && *s == '+' ) {
4366                                                 si->si_allopattrs = 1;
4367                                                 val [ s - str ] = delimstr[0];
4368                                         }
4369                                 }
4370                                 ch_free( str );
4371                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4372                                 if ( si->si_anlist == NULL ) {
4373                                         return -1;
4374                                 }
4375                         }
4376                         si->si_got |= GOT_ATTRS;
4377                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4378                                         STRLENOF( EXATTRSSTR "=" ) ) )
4379                 {
4380                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4381                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4382                                 char *attr_fname;
4383                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4384                                 si->si_exanlist = file2anlist(
4385                                         si->si_exanlist, attr_fname, " ,\t" );
4386                                 if ( si->si_exanlist == NULL ) {
4387                                         ch_free( attr_fname );
4388                                         return -1;
4389                                 }
4390                                 ch_free( attr_fname );
4391                         } else {
4392                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4393                                 if ( si->si_exanlist == NULL ) {
4394                                         return -1;
4395                                 }
4396                         }
4397                         si->si_got |= GOT_EXATTRS;
4398                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4399                                         STRLENOF( TYPESTR "=" ) ) )
4400                 {
4401                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4402                         if ( !strncasecmp( val, "refreshOnly",
4403                                                 STRLENOF("refreshOnly") ) )
4404                         {
4405                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4406                         } else if ( !strncasecmp( val, "refreshAndPersist",
4407                                                 STRLENOF("refreshAndPersist") ) )
4408                         {
4409                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4410                                 si->si_interval = 60;
4411                         } else {
4412                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4413                                         "Error: parse_syncrepl_line: "
4414                                         "unknown sync type \"%s\"", val);
4415                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4416                                 return -1;
4417                         }
4418                         si->si_got |= GOT_TYPE;
4419                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4420                                         STRLENOF( INTERVALSTR "=" ) ) )
4421                 {
4422                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4423                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4424                                 si->si_interval = 0;
4425                         } else if ( strchr( val, ':' ) != NULL ) {
4426                                 char *next, *ptr = val;
4427                                 int dd, hh, mm, ss;
4428
4429                                 dd = strtol( ptr, &next, 10 );
4430                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4431                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4432                                                 "Error: parse_syncrepl_line: "
4433                                                 "invalid interval \"%s\", unable to parse days", val );
4434                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4435                                         return -1;
4436                                 }
4437                                 ptr = next + 1;
4438                                 hh = strtol( ptr, &next, 10 );
4439                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4440                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4441                                                 "Error: parse_syncrepl_line: "
4442                                                 "invalid interval \"%s\", unable to parse hours", val );
4443                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4444                                         return -1;
4445                                 }
4446                                 ptr = next + 1;
4447                                 mm = strtol( ptr, &next, 10 );
4448                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4449                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4450                                                 "Error: parse_syncrepl_line: "
4451                                                 "invalid interval \"%s\", unable to parse minutes", val );
4452                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4453                                         return -1;
4454                                 }
4455                                 ptr = next + 1;
4456                                 ss = strtol( ptr, &next, 10 );
4457                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4458                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4459                                                 "Error: parse_syncrepl_line: "
4460                                                 "invalid interval \"%s\", unable to parse seconds", val );
4461                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4462                                         return -1;
4463                                 }
4464                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4465                         } else {
4466                                 unsigned long   t;
4467
4468                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4469                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4470                                                 "Error: parse_syncrepl_line: "
4471                                                 "invalid interval \"%s\"", val );
4472                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4473                                         return -1;
4474                                 }
4475                                 si->si_interval = (time_t)t;
4476                         }
4477                         if ( si->si_interval < 0 ) {
4478                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4479                                         "Error: parse_syncrepl_line: "
4480                                         "invalid interval \"%ld\"",
4481                                         (long) si->si_interval);
4482                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4483                                 return -1;
4484                         }
4485                         si->si_got |= GOT_INTERVAL;
4486                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4487                                         STRLENOF( RETRYSTR "=" ) ) )
4488                 {
4489                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4490                                 return 1;
4491                         }
4492                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4493                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4494                 {
4495                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4496                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4497                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4498                         {
4499                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4500                                         "invalid manageDSAit value \"%s\".\n",
4501                                         val );
4502                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4503                                 return 1;
4504                         }
4505                         si->si_got |= GOT_MANAGEDSAIT;
4506                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4507                                         STRLENOF( SLIMITSTR "=") ) )
4508                 {
4509                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4510                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4511                                 si->si_slimit = 0;
4512
4513                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4514                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4515                                         "invalid size limit value \"%s\".\n",
4516                                         val );
4517                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4518                                 return 1;
4519                         }
4520                         si->si_got |= GOT_SLIMIT;
4521                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4522                                         STRLENOF( TLIMITSTR "=" ) ) )
4523                 {
4524                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4525                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4526                                 si->si_tlimit = 0;
4527
4528                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4529                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4530                                         "invalid time limit value \"%s\".\n",
4531                                         val );
4532                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4533                                 return 1;
4534                         }
4535                         si->si_got |= GOT_TLIMIT;
4536                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4537                                         STRLENOF( SYNCDATASTR "=" ) ) )
4538                 {
4539                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4540                         si->si_syncdata = verb_to_mask( val, datamodes );
4541                         si->si_got |= GOT_SYNCDATA;
4542                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4543                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4544                                 "Error: parse_syncrepl_line: "
4545                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4546                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4547                         return -1;
4548                 }
4549                 si->si_got |= GOT_BINDCONF;
4550         }
4551
4552         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4553                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4554                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4555                         si->si_got & GOT_RID ? "" : " "IDSTR,
4556                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4557                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4558                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4559                 return -1;
4560         }
4561
4562         if ( !be_issubordinate( c->be, &si->si_base ) && !( si->si_got & GOT_SUFFIXM )) {
4563                 ch_free( si->si_base.bv_val );
4564                 BER_BVZERO( &si->si_base );
4565                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4566                         "Base DN \"%s\" is not within the database naming context",
4567                         val );
4568                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4569                 return -1;
4570         }
4571
4572 #ifdef ENABLE_REWRITE
4573         if ( si->si_got & GOT_SUFFIXM ) {
4574                 if (config_suffixm( c, si )) {
4575                         ch_free( si->si_suffixm.bv_val );
4576                         BER_BVZERO( &si->si_suffixm );
4577                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4578                                 "Error configuring rewrite engine" );
4579                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4580                         return -1;
4581                 }
4582         }
4583 #endif
4584
4585         if ( !( si->si_got & GOT_RETRY ) ) {
4586                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4587                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4588                 if ( si->si_retryinterval == NULL ) {
4589                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4590                                 return 1;
4591                         }
4592                 }
4593         }
4594
4595         si->si_filter = str2filter( si->si_filterstr.bv_val );
4596         if ( si->si_filter == NULL ) {
4597                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": unable to parse filter=\"%s\"\n",
4598                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", si->si_filterstr.bv_val );
4599                 return 1;
4600         }
4601
4602         return 0;
4603 }
4604
4605 static int
4606 add_syncrepl(
4607         ConfigArgs *c )
4608 {
4609         syncinfo_t *si;
4610         int     rc = 0;
4611
4612         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4613                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4614                         "operations required for syncrepl", c->be->be_type );
4615                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4616                 return 1;
4617         }
4618         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4619                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4620                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4621                 return 1;
4622         }
4623         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4624
4625         if ( si == NULL ) {
4626                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4627                 return 1;
4628         }
4629
4630         si->si_bindconf.sb_tls = SB_TLS_OFF;
4631         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4632         si->si_schemachecking = 0;
4633         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4634                 &si->si_filterstr );
4635         si->si_base.bv_val = NULL;
4636         si->si_scope = LDAP_SCOPE_SUBTREE;
4637         si->si_attrsonly = 0;
4638         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4639         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4640         si->si_attrs = NULL;
4641         si->si_allattrs = 0;
4642         si->si_allopattrs = 0;
4643         si->si_exattrs = NULL;
4644         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4645         si->si_interval = 86400;
4646         si->si_retryinterval = NULL;
4647         si->si_retrynum_init = NULL;
4648         si->si_retrynum = NULL;
4649         si->si_manageDSAit = 0;
4650         si->si_tlimit = 0;
4651         si->si_slimit = 0;
4652
4653         si->si_presentlist = NULL;
4654         LDAP_LIST_INIT( &si->si_nonpresentlist );
4655         ldap_pvt_thread_mutex_init( &si->si_mutex );
4656
4657         rc = parse_syncrepl_line( c, si );
4658
4659         if ( rc == 0 ) {
4660                 LDAPURLDesc *lud;
4661
4662                 /* Must be LDAPv3 because we need controls */
4663                 switch ( si->si_bindconf.sb_version ) {
4664                 case 0:
4665                         /* not explicitly set */
4666                         si->si_bindconf.sb_version = LDAP_VERSION3;
4667                         break;
4668                 case 3:
4669                         /* explicitly set */
4670                         break;
4671                 default:
4672                         Debug( LDAP_DEBUG_ANY,
4673                                 "version %d incompatible with syncrepl\n",
4674                                 si->si_bindconf.sb_version, 0, 0 );
4675                         syncinfo_free( si, 0 );
4676                         return 1;
4677                 }
4678
4679                 if ( ldap_url_parse( si->si_bindconf.sb_uri.bv_val, &lud )) {
4680                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4681                                 "<%s> invalid URL", c->argv[0] );
4682                         Debug( LDAP_DEBUG_ANY, "%s: %s %s\n",
4683                                 c->log, c->cr_msg, si->si_bindconf.sb_uri.bv_val );
4684                         return 1;
4685                 }
4686
4687                 si->si_be = c->be;
4688                 if ( slapMode & SLAP_SERVER_MODE ) {
4689                         int isMe = 0;
4690                         /* check if consumer points to current server and database.
4691                          * If so, ignore this configuration.
4692                          */
4693                         if ( !SLAP_DBHIDDEN( c->be ) ) {
4694                                 int i;
4695                                 /* if searchbase doesn't match current DB suffix,
4696                                  * assume it's different
4697                                  */
4698                                 for ( i=0; !BER_BVISNULL( &c->be->be_nsuffix[i] ); i++ ) {
4699                                         if ( bvmatch( &si->si_base, &c->be->be_nsuffix[i] )) {
4700                                                 isMe = 1;
4701                                                 break;
4702                                         }
4703                                 }
4704                                 /* if searchbase matches, see if URLs match */
4705                                 if ( isMe && config_check_my_url( si->si_bindconf.sb_uri.bv_val,
4706                                                 lud ) == NULL )
4707                                         isMe = 0;
4708                         }
4709
4710                         if ( !isMe ) {
4711                                 init_syncrepl( si );
4712                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4713                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4714                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4715                                         si->si_ridtxt );
4716                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4717                                 if ( si->si_re )
4718                                         rc = config_sync_shadow( c ) ? -1 : 0;
4719                                 else
4720                                         rc = -1;
4721                         }
4722                 } else {
4723                         /* mirrormode still needs to see this flag in tool mode */
4724                         rc = config_sync_shadow( c ) ? -1 : 0;
4725                 }
4726                 ldap_free_urldesc( lud );
4727         }
4728
4729 #ifdef HAVE_TLS
4730         /* Use main slapd defaults */
4731         bindconf_tls_defaults( &si->si_bindconf );
4732 #endif
4733         if ( rc < 0 ) {
4734                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4735                 syncinfo_free( si, 0 );
4736                 return 1;
4737         } else {
4738                 Debug( LDAP_DEBUG_CONFIG,
4739                         "Config: ** successfully added syncrepl %s \"%s\"\n",
4740                         si->si_ridtxt,
4741                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4742                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0 );
4743                 if ( c->be->be_syncinfo ) {
4744                         syncinfo_t *sip;
4745
4746                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4747
4748                         /* add new syncrepl to end of list (same order as when deleting) */
4749                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
4750                         sip->si_next = si;
4751                 } else {
4752                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4753                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4754                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_pmutex );
4755
4756                         c->be->be_syncinfo = si;
4757                 }
4758                 si->si_cookieState->cs_ref++;
4759
4760                 si->si_next = NULL;
4761
4762                 return 0;
4763         }
4764 }
4765
4766 static void
4767 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4768 {
4769         struct berval bc, uri, bs;
4770         char buf[BUFSIZ*2], *ptr;
4771         ber_len_t len;
4772         int i;
4773 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4774
4775         BER_BVZERO( bv );
4776
4777         /* temporarily inhibit bindconf from printing URI */
4778         uri = si->si_bindconf.sb_uri;
4779         BER_BVZERO( &si->si_bindconf.sb_uri );
4780         si->si_bindconf.sb_version = 0;
4781         bindconf_unparse( &si->si_bindconf, &bc );
4782         si->si_bindconf.sb_uri = uri;
4783         si->si_bindconf.sb_version = LDAP_VERSION3;
4784
4785         ptr = buf;
4786         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_RID_MAX );
4787         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4788                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4789         if ( len >= sizeof( buf ) ) return;
4790         ptr += len;
4791         if ( !BER_BVISNULL( &bc ) ) {
4792                 if ( WHATSLEFT <= bc.bv_len ) {
4793                         free( bc.bv_val );
4794                         return;
4795                 }
4796                 ptr = lutil_strcopy( ptr, bc.bv_val );
4797                 free( bc.bv_val );
4798         }
4799         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4800                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4801                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4802                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4803                 *ptr++ = '"';
4804         }
4805         if ( !BER_BVISNULL( &si->si_base ) ) {
4806                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4807                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4808                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4809                 *ptr++ = '"';
4810         }
4811 #ifdef ENABLE_REWRITE
4812         if ( !BER_BVISNULL( &si->si_suffixm ) ) {
4813                 if ( WHATSLEFT <= STRLENOF( " " SUFFIXMSTR "=\"" "\"" ) + si->si_suffixm.bv_len ) return;
4814                 ptr = lutil_strcopy( ptr, " " SUFFIXMSTR "=\"" );
4815                 ptr = lutil_strcopy( ptr, si->si_suffixm.bv_val );
4816                 *ptr++ = '"';
4817         }
4818 #endif
4819         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4820                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4821                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4822                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4823                 *ptr++ = '"';
4824         }
4825         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4826                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4827                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4828                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4829                 *ptr++ = '"';
4830         }
4831         if ( ldap_pvt_scope2bv( si->si_scope, &bs ) == LDAP_SUCCESS ) {
4832                 if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + bs.bv_len ) return;
4833                 ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4834                 ptr = lutil_strcopy( ptr, bs.bv_val );
4835         }
4836         if ( si->si_attrsonly ) {
4837                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4838                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4839         }
4840         if ( si->si_anfile ) {
4841                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4842                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4843                 ptr = lutil_strcopy( ptr, si->si_anfile );
4844                 *ptr++ = '"';
4845         } else if ( si->si_allattrs || si->si_allopattrs ||
4846                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4847         {
4848                 char *old;
4849
4850                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4851                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4852                 old = ptr;
4853                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4854                 if ( ptr == NULL ) return;
4855                 if ( si->si_allattrs ) {
4856                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4857                         if ( old != ptr ) *ptr++ = ',';
4858                         *ptr++ = '*';
4859                 }
4860                 if ( si->si_allopattrs ) {
4861                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4862                         if ( old != ptr ) *ptr++ = ',';
4863                         *ptr++ = '+';
4864                 }
4865                 *ptr++ = '"';
4866         }
4867         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4868                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4869                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4870                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4871                 if ( ptr == NULL ) return;
4872         }
4873         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4874         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4875         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4876
4877         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4878         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4879         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4880                 "refreshAndPersist" : "refreshOnly" );
4881
4882         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4883                 int dd, hh, mm, ss;
4884
4885                 dd = si->si_interval;
4886                 ss = dd % 60;
4887                 dd /= 60;
4888                 mm = dd % 60;
4889                 dd /= 60;
4890                 hh = dd % 24;
4891                 dd /= 24;
4892                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4893                         INTERVALSTR, dd, hh, mm, ss );
4894                 if ( len >= WHATSLEFT ) return;
4895                 ptr += len;
4896         }
4897
4898         if ( si->si_got & GOT_RETRY ) {
4899                 const char *space = "";
4900                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4901                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4902                 for (i=0; si->si_retryinterval[i]; i++) {
4903                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4904                                 (long) si->si_retryinterval[i] );
4905                         space = " ";
4906                         if ( WHATSLEFT - 1 <= len ) return;
4907                         ptr += len;
4908                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4909                                 *ptr++ = '+';
4910                         else {
4911                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4912                                 if ( WHATSLEFT <= len ) return;
4913                                 ptr += len;
4914                         }
4915                 }
4916                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4917                 *ptr++ = '"';
4918         } else {
4919                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4920         }
4921
4922         if ( si->si_slimit ) {
4923                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4924                 if ( WHATSLEFT <= len ) return;
4925                 ptr += len;
4926         }
4927
4928         if ( si->si_tlimit ) {
4929                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4930                 if ( WHATSLEFT <= len ) return;
4931                 ptr += len;
4932         }
4933
4934         if ( si->si_syncdata ) {
4935                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4936                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4937                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4938                         ptr = lutil_strcopy( ptr, bc.bv_val );
4939                 }
4940         }
4941         bc.bv_len = ptr - buf;
4942         bc.bv_val = buf;
4943         ber_dupbv( bv, &bc );
4944 }
4945
4946 int
4947 syncrepl_config( ConfigArgs *c )
4948 {
4949         if (c->op == SLAP_CONFIG_EMIT) {
4950                 if ( c->be->be_syncinfo ) {
4951                         struct berval bv;
4952                         syncinfo_t *si;
4953
4954                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4955                                 syncrepl_unparse( si, &bv );
4956                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4957                         }
4958                         return 0;
4959                 }
4960                 return 1;
4961         } else if ( c->op == LDAP_MOD_DELETE ) {
4962                 int isrunning = 0;
4963                 if ( c->be->be_syncinfo ) {
4964                         syncinfo_t *si, **sip;
4965                         int i;
4966
4967                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4968                                 si = *sip;
4969                                 if ( c->valx == -1 || i == c->valx ) {
4970                                         *sip = si->si_next;
4971                                         si->si_ctype = -1;
4972                                         si->si_next = NULL;
4973                                         /* If the task is currently active, we have to leave
4974                                          * it running. It will exit on its own. This will only
4975                                          * happen when running on the cn=config DB.
4976                                          */
4977                                         if ( si->si_re ) {
4978                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
4979                                                         isrunning = 1;
4980                                                 } else {
4981                                                         /* There is no active thread, but we must still
4982                                                          * ensure that no thread is (or will be) queued
4983                                                          * while we removes the task.
4984                                                          */
4985                                                         struct re_s *re = si->si_re;
4986                                                         si->si_re = NULL;
4987
4988                                                         if ( si->si_conn ) {
4989                                                                 connection_client_stop( si->si_conn );
4990                                                                 si->si_conn = NULL;
4991                                                         }
4992
4993                                                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4994                                                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) ) {
4995                                                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
4996                                                                 isrunning = 1;
4997                                                         }
4998                                                         ldap_pvt_runqueue_remove( &slapd_rq, re );
4999                                                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
5000
5001                                                         if ( ldap_pvt_thread_pool_retract( &connection_pool,
5002                                                                         re->routine, re ) > 0 )
5003                                                                 isrunning = 0;
5004
5005                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
5006                                                 }
5007                                         }
5008                                         if ( !isrunning ) {
5009                                                 syncinfo_free( si, 0 );
5010                                         }
5011                                         if ( i == c->valx )
5012                                                 break;
5013                                 } else {
5014                                         sip = &si->si_next;
5015                                 }
5016                         }
5017                 }
5018                 if ( !c->be->be_syncinfo ) {
5019                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
5020                 }
5021                 return 0;
5022         }
5023         if ( SLAP_SLURP_SHADOW( c->be ) ) {
5024                 Debug(LDAP_DEBUG_ANY, "%s: "
5025                         "syncrepl: database already shadowed.\n",
5026                         c->log, 0, 0);
5027                 return(1);
5028         } else {
5029                 return add_syncrepl( c );
5030         }
5031 }