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 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003-2008 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[2], *ctrls[3];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 421                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 422                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 423                 c[1].ldctl_iscritical = 1;
 424                 ctrls[1] = &c[1];
 425                 ctrls[2] = NULL;
 426         } else {
 427                 ctrls[1] = NULL;
 428         }
 429
 430         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 431                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 432         ber_free_buf( ber );
 433         return rc;
 434 }
 435
 436 static int
 437 check_syncprov(
 438         Operation *op,
 439         syncinfo_t *si )
 440 {
 441         AttributeName at[2];
 442         Attribute a = {0};
 443         Entry e = {0};
 444         SlapReply rs = {0};
 445         int i, j, changed = 0;
 446
 447         /* Look for contextCSN from syncprov overlay. If
 448          * there's no overlay, this will be a no-op. That means
 449          * this is a pure consumer, so local changes will not be
 450          * allowed, and all changes will already be reflected in
 451          * the cookieState.
 452          */
 453         a.a_desc = slap_schema.si_ad_contextCSN;
 454         e.e_attrs = &a;
 455         e.e_name = op->o_bd->be_suffix[0];
 456         e.e_nname = op->o_bd->be_nsuffix[0];
 457         at[0].an_name = a.a_desc->ad_cname;
 458         at[0].an_desc = a.a_desc;
 459         BER_BVZERO( &at[1].an_name );
 460         rs.sr_entry = &e;
 461         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 462         rs.sr_attrs = at;
 463         op->o_req_dn = e.e_name;
 464         op->o_req_ndn = e.e_nname;
 465
 466         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 467         i = backend_operational( op, &rs );
 468         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 469                 int num = a.a_numvals;
 470                 /* check for differences */
 471                 if ( num != si->si_cookieState->cs_num ) {
 472                         changed = 1;
 473                 } else {
 474                         for ( i=0; i<num; i++ ) {
 475                                 if ( ber_bvcmp( &a.a_nvals[i],
 476                                         &si->si_cookieState->cs_vals[i] )) {
 477                                         changed = 1;
 478                                         break;
 479                                 }
 480                         }
 481                 }
 482                 if ( changed ) {
 483                         ber_bvarray_free( si->si_cookieState->cs_vals );
 484                         ch_free( si->si_cookieState->cs_sids );
 485                         si->si_cookieState->cs_num = num;
 486                         si->si_cookieState->cs_vals = a.a_nvals;
 487                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 488                                 num, NULL );
 489                         si->si_cookieState->cs_age++;
 490                 } else {
 491                         ber_bvarray_free( a.a_nvals );
 492                 }
 493                 ber_bvarray_free( a.a_vals );
 494         }
 495         /* See if the cookieState has changed due to anything outside
 496          * this particular consumer. That includes other consumers in
 497          * the same context, or local changes detected above.
 498          */
 499         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 500                 si->si_cookieState->cs_age ) {
 501                 if ( !si->si_syncCookie.numcsns ) {
 502                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 503                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 504                                 si->si_cookieState->cs_vals, NULL );
 505                         changed = 1;
 506                 } else {
 507                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 508                                 /* bogus, just dup everything */
 509                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 510                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 511                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 512                                                 si->si_cookieState->cs_vals, NULL );
 513                                         changed = 1;
 514                                         break;
 515                                 }
 516                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 517                                         if ( si->si_syncCookie.sids[i] !=
 518                                                 si->si_cookieState->cs_sids[j] )
 519                                                 continue;
 520                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 521                                                 &si->si_cookieState->cs_vals[j] ))
 522                                                 break;
 523                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 524                                                 &si->si_cookieState->cs_vals[j] );
 525                                         changed = 1;
 526                                         break;
 527                                 }
 528                         }
 529                 }
 530         }
 531         if ( changed ) {
 532                 si->si_cookieAge = si->si_cookieState->cs_age;
 533                 ch_free( si->si_syncCookie.octet_str.bv_val );
 534                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 535                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 536                         si->si_syncCookie.sid );
 537         }
 538         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 539         return changed;
 540 }
 541
 542 static int
 543 do_syncrep1(
 544         Operation *op,
 545         syncinfo_t *si )
 546 {
 547         int     rc;
 548         int cmdline_cookie_found = 0;
 549
 550         struct sync_cookie      *sc = NULL;
 551 #ifdef HAVE_TLS
 552         void    *ssl;
 553 #endif
 554
 555         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 556         if ( rc != LDAP_SUCCESS ) {
 557                 goto done;
 558         }
 559         op->o_protocol = LDAP_VERSION3;
 560
 561         /* Set SSF to strongest of TLS, SASL SSFs */
 562         op->o_sasl_ssf = 0;
 563         op->o_tls_ssf = 0;
 564         op->o_transport_ssf = 0;
 565 #ifdef HAVE_TLS
 566         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 567                 == LDAP_SUCCESS && ssl != NULL )
 568         {
 569                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 570         }
 571 #endif /* HAVE_TLS */
 572         {
 573                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 574                                                   to use sasl_ssf_t but currently uses ber_len_t */
 575                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 576                 op->o_sasl_ssf = ssf;
 577         }
 578         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 579                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 580
 581         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 582
 583         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 584         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 585
 586         si->si_syncCookie.rid = si->si_rid;
 587
 588         /* whenever there are multiple data sources possible, advertise sid */
 589         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 590                 slap_serverID : -1;
 591
 592         /* We've just started up, or the remote server hasn't sent us
 593          * any meaningful state.
 594          */
 595         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 596                 int i;
 597
 598                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 599                         if ( si->si_rid == sc->rid ) {
 600                                 cmdline_cookie_found = 1;
 601                                 break;
 602                         }
 603                 }
 604
 605                 if ( cmdline_cookie_found ) {
 606                         /* cookie is supplied in the command line */
 607
 608                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 609
 610                         /* ctxcsn wasn't parsed yet, do it now */
 611                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 612                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 613                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 614                         slap_sync_cookie_free( sc, 1 );
 615                 } else {
 616                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 617                         if ( !si->si_cookieState->cs_num ) {
 618                                 /* get contextCSN shadow replica from database */
 619                                 BerVarray csn = NULL;
 620                                 void *ctx = op->o_tmpmemctx;
 621
 622                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 623                                 op->o_req_dn = op->o_req_ndn;
 624
 625                                 /* try to read stored contextCSN */
 626                                 op->o_tmpmemctx = NULL;
 627                                 backend_attribute( op, NULL, &op->o_req_ndn,
 628                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 629                                 op->o_tmpmemctx = ctx;
 630                                 if ( csn ) {
 631                                         si->si_cookieState->cs_vals = csn;
 632                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 633                                         si->si_cookieState->cs_num = i;
 634                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 635                                 }
 636                         }
 637                         if ( si->si_cookieState->cs_num ) {
 638                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 639                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 640                                         si->si_cookieState->cs_vals, NULL )) {
 641                                         rc = LDAP_NO_MEMORY;
 642                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 643                                         goto done;
 644                                 }
 645                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 646                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 647                                         sizeof(int) );
 648                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 649                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 650                         }
 651                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 652                 }
 653
 654                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 655                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 656                         si->si_syncCookie.sid );
 657         } else {
 658                 /* Look for contextCSN from syncprov overlay. */
 659                 check_syncprov( op, si );
 660         }
 661
 662         si->si_refreshDone = 0;
 663
 664         rc = ldap_sync_search( si, op->o_tmpmemctx );
 665
 666         if( rc != LDAP_SUCCESS ) {
 667                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 668                         "ldap_search_ext: %s (%d)\n",
 669                         si->si_ridtxt, ldap_err2string( rc ), rc );
 670         }
 671
 672 done:
 673         if ( rc ) {
 674                 if ( si->si_ld ) {
 675                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 676                         si->si_ld = NULL;
 677                 }
 678         }
 679
 680         return rc;
 681 }
 682
 683 static int
 684 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 685 {
 686         int i, j, match = 0;
 687         const char *text;
 688
 689         *which = 0;
 690
 691         if ( sc1->numcsns < sc2->numcsns ) {
 692                 *which = sc1->numcsns;
 693                 return -1;
 694         }
 695
 696         for (j=0; j<sc2->numcsns; j++) {
 697                 for (i=0; i<sc1->numcsns; i++) {
 698                         if ( sc1->sids[i] != sc2->sids[j] )
 699                                 continue;
 700                         value_match( &match, slap_schema.si_ad_entryCSN,
 701                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 702                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 703                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 704                         if ( match < 0 ) {
 705                                 *which = j;
 706                                 return match;
 707                         }
 708                         break;
 709                 }
 710                 if ( i == sc1->numcsns ) {
 711                         /* sc2 has a sid sc1 lacks */
 712                         *which = j;
 713                         return -1;
 714                 }
 715         }
 716         return match;
 717 }
 718
 719 #define SYNC_PAUSED     -3
 720
 721 static int
 722 do_syncrep2(
 723         Operation *op,
 724         syncinfo_t *si )
 725 {
 726         LDAPControl     **rctrls = NULL;
 727         LDAPControl     *rctrlp;
 728
 729         BerElementBuffer berbuf;
 730         BerElement      *ber = (BerElement *)&berbuf;
 731
 732         LDAPMessage     *msg = NULL;
 733
 734         char            *retoid = NULL;
 735         struct berval   *retdata = NULL;
 736
 737         Entry           *entry = NULL;
 738
 739         int             syncstate;
 740         struct berval   syncUUID = BER_BVNULL;
 741         struct sync_cookie      syncCookie = { NULL };
 742         struct sync_cookie      syncCookie_req = { NULL };
 743         struct berval           cookie = BER_BVNULL;
 744
 745         int             rc,
 746                         err = LDAP_SUCCESS;
 747         ber_len_t       len;
 748
 749         struct berval   *psub;
 750         Modifications   *modlist = NULL;
 751
 752         int                             match, m;
 753
 754         struct timeval *tout_p = NULL;
 755         struct timeval tout = { 0, 0 };
 756
 757         int             refreshDeletes = 0;
 758         BerVarray syncUUIDs = NULL;
 759         ber_tag_t si_tag;
 760
 761         if ( slapd_shutdown ) {
 762                 rc = -2;
 763                 goto done;
 764         }
 765
 766         ber_init2( ber, NULL, LBER_USE_DER );
 767         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 768
 769         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 770
 771         psub = &si->si_be->be_nsuffix[0];
 772
 773         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 774
 775         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 776                 tout_p = &tout;
 777         } else {
 778                 tout_p = NULL;
 779         }
 780
 781         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 782                 tout_p, &msg ) ) > 0 )
 783         {
 784                 if ( slapd_shutdown ) {
 785                         rc = -2;
 786                         goto done;
 787                 }
 788                 switch( ldap_msgtype( msg ) ) {
 789                 case LDAP_RES_SEARCH_ENTRY:
 790                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 791                         /* we can't work without the control */
 792                         rctrlp = NULL;
 793                         if ( rctrls ) {
 794                                 LDAPControl **next;
 795                                 /* NOTE: make sure we use the right one;
 796                                  * a better approach would be to run thru
 797                                  * the whole list and take care of all */
 798                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 799                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 800                                 {
 801                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 802                                                 "got search entry with multiple "
 803                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 804                                         rc = -1;
 805                                         goto done;
 806                                 }
 807                         }
 808                         if ( rctrlp == NULL ) {
 809                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 810                                         "got search entry without "
 811                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 812                                 rc = -1;
 813                                 goto done;
 814                         }
 815                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 816                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 817                         /* FIXME: what if syncUUID is NULL or empty?
 818                          * (happens with back-sql...) */
 819                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 820                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 821                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 822                                         si->si_ridtxt,
 823                                         syncrepl_state2str( syncstate ), 0 );
 824                                 ldap_controls_free( rctrls );
 825                                 rc = -1;
 826                                 goto done;
 827                         }
 828                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 829                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 830
 831                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 832                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 833
 834                                 if ( !BER_BVISNULL( &cookie ) ) {
 835                                         ch_free( syncCookie.octet_str.bv_val );
 836                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 837                                 }
 838                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 839                                 {
 840                                         slap_parse_sync_cookie( &syncCookie, NULL );
 841                                         if ( syncCookie.ctxcsn ) {
 842                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 843                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 844                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 845                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 846                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 847                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 848                                                                 ldap_controls_free( rctrls );
 849                                                                 rc = 0;
 850                                                                 goto done;
 851                                                         }
 852                                                 }
 853                                         }
 854                                 }
 855                         }
 856                         rc = 0;
 857                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 858                                 modlist = NULL;
 859                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 860                                         syncCookie.ctxcsn )
 861                                 {
 862                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 863                                 } else switch ( rc ) {
 864                                         case LDAP_ALREADY_EXISTS:
 865                                         case LDAP_NO_SUCH_OBJECT:
 866                                         case LDAP_NO_SUCH_ATTRIBUTE:
 867                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 868                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 869                                                 si->si_logstate = SYNCLOG_FALLBACK;
 870                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 871                                                 break;
 872                                         default:
 873                                                 break;
 874                                 }
 875                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 876                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 877                         {
 878                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 879                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 880                                         syncCookie.ctxcsn )
 881                                 {
 882                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 883                                 }
 884                         }
 885                         ldap_controls_free( rctrls );
 886                         if ( modlist ) {
 887                                 slap_mods_free( modlist, 1 );
 888                         }
 889                         if ( rc )
 890                                 goto done;
 891                         break;
 892
 893                 case LDAP_RES_SEARCH_REFERENCE:
 894                         Debug( LDAP_DEBUG_ANY,
 895                                 "do_syncrep2: %s reference received error\n",
 896                                 si->si_ridtxt, 0, 0 );
 897                         break;
 898
 899                 case LDAP_RES_SEARCH_RESULT:
 900                         Debug( LDAP_DEBUG_SYNC,
 901                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 902                                 si->si_ridtxt, 0, 0 );
 903                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 904                                 &rctrls, 0 );
 905 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 906                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 907                                 /* map old result code to registered code */
 908                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 909                         }
 910 #endif
 911                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 912                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 913                                         si->si_logstate = SYNCLOG_FALLBACK;
 914                                 }
 915                                 rc = err;
 916                                 goto done;
 917                         }
 918                         if ( err ) {
 919                                 Debug( LDAP_DEBUG_ANY,
 920                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 921                                         si->si_ridtxt, err, ldap_err2string( err ) );
 922                         }
 923                         if ( rctrls ) {
 924                                 rctrlp = *rctrls;
 925                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 926
 927                                 ber_scanf( ber, "{" /*"}"*/);
 928                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 929                                         ber_scanf( ber, "m", &cookie );
 930
 931                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 932                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 933
 934                                         if ( !BER_BVISNULL( &cookie ) ) {
 935                                                 ch_free( syncCookie.octet_str.bv_val );
 936                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 937                                         }
 938                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 939                                         {
 940                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 941                                         }
 942                                 }
 943                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 944                                 {
 945                                         ber_scanf( ber, "b", &refreshDeletes );
 946                                 }
 947                                 ber_scanf( ber, /*"{"*/ "}" );
 948                         }
 949                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 950                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 951                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 952                         }
 953                         if ( !syncCookie.ctxcsn ) {
 954                                 match = 1;
 955                         } else if ( !syncCookie_req.ctxcsn ) {
 956                                 match = -1;
 957                                 m = 0;
 958                         } else {
 959                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 960                         }
 961                         if ( rctrls ) {
 962                                 ldap_controls_free( rctrls );
 963                         }
 964                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 965                                 /* FIXME : different error behaviors according to
 966                                  *      1) err code : LDAP_BUSY ...
 967                                  *      2) on err policy : stop service, stop sync, retry
 968                                  */
 969                                 if ( refreshDeletes == 0 && match < 0 &&
 970                                         err == LDAP_SUCCESS &&
 971                                         syncCookie_req.numcsns == syncCookie.numcsns )
 972                                 {
 973                                         syncrepl_del_nonpresent( op, si, NULL,
 974                                                 &syncCookie, m );
 975                                 } else {
 976                                         avl_free( si->si_presentlist, ch_free );
 977                                         si->si_presentlist = NULL;
 978                                 }
 979                         }
 980                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 981                         {
 982                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 983                         }
 984                         if ( err == LDAP_SUCCESS
 985                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 986                                 si->si_logstate = SYNCLOG_LOGGING;
 987                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 988                         } else {
 989                                 rc = -2;
 990                         }
 991                         goto done;
 992                         break;
 993
 994                 case LDAP_RES_INTERMEDIATE:
 995                         rc = ldap_parse_intermediate( si->si_ld, msg,
 996                                 &retoid, &retdata, NULL, 0 );
 997                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 998                                 ber_init2( ber, retdata, LBER_USE_DER );
 999
1000                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1001                                 ber_tag_t tag;
1002                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1003                                         Debug( LDAP_DEBUG_SYNC,
1004                                                 "do_syncrep2: %s %s - %s\n",
1005                                                 si->si_ridtxt,
1006                                                 "LDAP_RES_INTERMEDIATE",
1007                                                 "NEW_COOKIE" );
1008                                         ber_scanf( ber, "tm", &tag, &cookie );
1009                                         break;
1010                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1011                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1012                                         Debug( LDAP_DEBUG_SYNC,
1013                                                 "do_syncrep2: %s %s - %s\n",
1014                                                 si->si_ridtxt,
1015                                                 "LDAP_RES_INTERMEDIATE",
1016                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1017                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1018                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1019                                                 si->si_refreshDelete = 1;
1020                                         } else {
1021                                                 si->si_refreshPresent = 1;
1022                                         }
1023                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1024                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1025                                         {
1026                                                 ber_scanf( ber, "m", &cookie );
1027
1028                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1029                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1030
1031                                                 if ( !BER_BVISNULL( &cookie ) ) {
1032                                                         ch_free( syncCookie.octet_str.bv_val );
1033                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1034                                                 }
1035                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1036                                                 {
1037                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1038                                                 }
1039                                         }
1040                                         /* Defaults to TRUE */
1041                                         if ( ber_peek_tag( ber, &len ) ==
1042                                                 LDAP_TAG_REFRESHDONE )
1043                                         {
1044                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1045                                         } else
1046                                         {
1047                                                 si->si_refreshDone = 1;
1048                                         }
1049                                         ber_scanf( ber, /*"{"*/ "}" );
1050                                         break;
1051                                 case LDAP_TAG_SYNC_ID_SET:
1052                                         Debug( LDAP_DEBUG_SYNC,
1053                                                 "do_syncrep2: %s %s - %s\n",
1054                                                 si->si_ridtxt,
1055                                                 "LDAP_RES_INTERMEDIATE",
1056                                                 "SYNC_ID_SET" );
1057                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1058                                         if ( ber_peek_tag( ber, &len ) ==
1059                                                 LDAP_TAG_SYNC_COOKIE )
1060                                         {
1061                                                 ber_scanf( ber, "m", &cookie );
1062
1063                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1064                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1065
1066                                                 if ( !BER_BVISNULL( &cookie ) ) {
1067                                                         ch_free( syncCookie.octet_str.bv_val );
1068                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1069                                                 }
1070                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1071                                                 {
1072                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1073                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1074                                                 }
1075                                         }
1076                                         if ( ber_peek_tag( ber, &len ) ==
1077                                                 LDAP_TAG_REFRESHDELETES )
1078                                         {
1079                                                 ber_scanf( ber, "b", &refreshDeletes );
1080                                         }
1081                                         ber_scanf( ber, "[W]", &syncUUIDs );
1082                                         ber_scanf( ber, /*"{"*/ "}" );
1083                                         if ( refreshDeletes ) {
1084                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1085                                                         &syncCookie, m );
1086                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1087                                         } else {
1088                                                 int i;
1089                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1090                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1091                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1092                                                 }
1093                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1094                                         }
1095                                         slap_sync_cookie_free( &syncCookie, 0 );
1096                                         break;
1097                                 default:
1098                                         Debug( LDAP_DEBUG_ANY,
1099                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1100                                                 si->si_ridtxt, (long) si_tag, 0 );
1101                                         ldap_memfree( retoid );
1102                                         ber_bvfree( retdata );
1103                                         continue;
1104                                 }
1105
1106                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1107                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1108                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1109                                 }
1110                                 if ( !syncCookie.ctxcsn ) {
1111                                         match = 1;
1112                                 } else if ( !syncCookie_req.ctxcsn ) {
1113                                         match = -1;
1114                                         m = 0;
1115                                 } else {
1116                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1117                                 }
1118
1119                                 if ( match < 0 ) {
1120                                         if ( si->si_refreshPresent == 1 &&
1121                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1122                                                 syncrepl_del_nonpresent( op, si, NULL,
1123                                                         &syncCookie, m );
1124                                         }
1125
1126                                         if ( syncCookie.ctxcsn )
1127                                         {
1128                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1129                                         }
1130                                 }
1131
1132                                 ldap_memfree( retoid );
1133                                 ber_bvfree( retdata );
1134                                 break;
1135
1136                         } else {
1137                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1138                                         "unknown intermediate response (%d)\n",
1139                                         si->si_ridtxt, rc, 0 );
1140                                 ldap_memfree( retoid );
1141                                 ber_bvfree( retdata );
1142                                 break;
1143                         }
1144                         break;
1145
1146                 default:
1147                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1148                                 "unknown message (0x%02lx)\n",
1149                                 si->si_ridtxt,
1150                                 (unsigned long)ldap_msgtype( msg ), 0 );
1151                         break;
1152
1153                 }
1154                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1155                         slap_sync_cookie_free( &syncCookie_req, 0 );
1156                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1157                         slap_sync_cookie_free( &syncCookie, 0 );
1158                 }
1159                 ldap_msgfree( msg );
1160                 msg = NULL;
1161                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1162                         slap_sync_cookie_free( &syncCookie, 0 );
1163                         slap_sync_cookie_free( &syncCookie_req, 0 );
1164                         return SYNC_PAUSED;
1165                 }
1166         }
1167
1168         if ( rc == -1 ) {
1169                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1170                 err = rc;
1171         }
1172
1173 done:
1174         if ( err != LDAP_SUCCESS ) {
1175                 Debug( LDAP_DEBUG_ANY,
1176                         "do_syncrep2: %s (%d) %s\n",
1177                         si->si_ridtxt, err, ldap_err2string( err ) );
1178         }
1179
1180         slap_sync_cookie_free( &syncCookie, 0 );
1181         slap_sync_cookie_free( &syncCookie_req, 0 );
1182
1183         if ( msg ) ldap_msgfree( msg );
1184
1185         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1186                 if ( si->si_conn ) {
1187                         connection_client_stop( si->si_conn );
1188                         si->si_conn = NULL;
1189                 }
1190                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1191                 si->si_ld = NULL;
1192         }
1193
1194         return rc;
1195 }
1196
1197 static void *
1198 do_syncrepl(
1199         void    *ctx,
1200         void    *arg )
1201 {
1202         struct re_s* rtask = arg;
1203         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1204         Connection conn = {0};
1205         OperationBuffer opbuf;
1206         Operation *op;
1207         int rc = LDAP_SUCCESS;
1208         int dostop = 0;
1209         ber_socket_t s;
1210         int i, defer = 1, fail = 0;
1211         Backend *be;
1212
1213         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1214
1215         if ( si == NULL )
1216                 return NULL;
1217
1218         /* There will never be more than one instance active */
1219         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1220
1221         switch( abs( si->si_type ) ) {
1222         case LDAP_SYNC_REFRESH_ONLY:
1223         case LDAP_SYNC_REFRESH_AND_PERSIST:
1224                 break;
1225         default:
1226                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1227                 return NULL;
1228         }
1229
1230         if ( slapd_shutdown ) {
1231                 if ( si->si_ld ) {
1232                         if ( si->si_conn ) {
1233                                 connection_client_stop( si->si_conn );
1234                                 si->si_conn = NULL;
1235                         }
1236                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1237                         si->si_ld = NULL;
1238                 }
1239                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1240                 return NULL;
1241         }
1242
1243         connection_fake_init( &conn, &opbuf, ctx );
1244         op = &opbuf.ob_op;
1245
1246         /* use global malloc for now */
1247         op->o_tmpmemctx = NULL;
1248         op->o_tmpmfuncs = &ch_mfuncs;
1249
1250         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1251         be = si->si_be;
1252
1253         /* Coordinate contextCSN updates with any syncprov overlays
1254          * in use. This may be complicated by the use of the glue
1255          * overlay.
1256          *
1257          * Typically there is a single syncprov mastering the entire
1258          * glued tree. In that case, our contextCSN updates should
1259          * go to the master DB. But if there is no syncprov on the
1260          * master DB, then nothing special is needed here.
1261          *
1262          * Alternatively, there may be individual syncprov overlays
1263          * on each glued branch. In that case, each syncprov only
1264          * knows about changes within its own branch. And so our
1265          * contextCSN updates should only go to the local DB.
1266          */
1267         if ( !si->si_wbe ) {
1268                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1269                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1270                         if ( overlay_is_inst( top_be, "syncprov" ))
1271                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1272                         else
1273                                 si->si_wbe = be;
1274                 } else {
1275                         si->si_wbe = be;
1276                 }
1277         }
1278         if ( !si->si_schemachecking )
1279                 op->o_no_schema_check = 1;
1280
1281         /* Establish session, do search */
1282         if ( !si->si_ld ) {
1283                 si->si_refreshDelete = 0;
1284                 si->si_refreshPresent = 0;
1285
1286                 /* use main DB when retrieving contextCSN */
1287                 op->o_bd = si->si_wbe;
1288                 op->o_dn = op->o_bd->be_rootdn;
1289                 op->o_ndn = op->o_bd->be_rootndn;
1290                 rc = do_syncrep1( op, si );
1291         }
1292
1293 reload:
1294         /* Process results */
1295         if ( rc == LDAP_SUCCESS ) {
1296                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1297
1298                 /* use current DB */
1299                 op->o_bd = be;
1300                 op->o_dn = op->o_bd->be_rootdn;
1301                 op->o_ndn = op->o_bd->be_rootndn;
1302                 rc = do_syncrep2( op, si );
1303                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1304                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1305                         goto reload;
1306                 }
1307
1308                 /* We got deleted while running on cn=config */
1309                 if ( !si->si_ctype ) {
1310                         if ( si->si_conn )
1311                                 dostop = 1;
1312                         rc = -1;
1313                 }
1314
1315                 if ( rc != SYNC_PAUSED ) {
1316                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1317                                 /* If we succeeded, enable the connection for further listening.
1318                                  * If we failed, tear down the connection and reschedule.
1319                                  */
1320                                 if ( rc == LDAP_SUCCESS ) {
1321                                         if ( si->si_conn ) {
1322                                                 connection_client_enable( si->si_conn );
1323                                         } else {
1324                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1325                                         }
1326                                 } else if ( si->si_conn ) {
1327                                         dostop = 1;
1328                                 }
1329                         } else {
1330                                 if ( rc == -2 ) rc = 0;
1331                         }
1332                 }
1333         }
1334
1335         /* At this point, we have 5 cases:
1336          * 1) for any hard failure, give up and remove this task
1337          * 2) for ServerDown, reschedule this task to run later
1338          * 3) for threadpool pause, reschedule to run immediately
1339          * 4) for Refresh and Success, reschedule to run
1340          * 5) for Persist and Success, reschedule to defer
1341          */
1342         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1343
1344         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1345                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1346         }
1347
1348         if ( dostop ) {
1349                 connection_client_stop( si->si_conn );
1350                 si->si_conn = NULL;
1351         }
1352
1353         if ( rc == SYNC_PAUSED ) {
1354                 rtask->interval.tv_sec = 0;
1355                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1356                 rtask->interval.tv_sec = si->si_interval;
1357                 rc = 0;
1358         } else if ( rc == LDAP_SUCCESS ) {
1359                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1360                         defer = 0;
1361                 }
1362                 rtask->interval.tv_sec = si->si_interval;
1363                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1364                 if ( si->si_retrynum ) {
1365                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1366                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1367                         }
1368                         si->si_retrynum[i] = RETRYNUM_TAIL;
1369                 }
1370         } else {
1371                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1372                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1373                                 break;
1374                 }
1375
1376                 if ( !si->si_ctype
1377                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1378                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1379                         fail = RETRYNUM_TAIL;
1380                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1381                         if ( si->si_retrynum[i] > 0 )
1382                                 si->si_retrynum[i]--;
1383                         fail = si->si_retrynum[i];
1384                         rtask->interval.tv_sec = si->si_retryinterval[i];
1385                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1386                         slap_wake_listener();
1387                 }
1388         }
1389
1390         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1391         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1392
1393         if ( rc ) {
1394                 if ( fail == RETRYNUM_TAIL ) {
1395                         Debug( LDAP_DEBUG_ANY,
1396                                 "do_syncrepl: %s quitting\n",
1397                                 si->si_ridtxt, 0, 0 );
1398                 } else if ( fail > 0 ) {
1399                         Debug( LDAP_DEBUG_ANY,
1400                                 "do_syncrepl: %s retrying (%d retries left)\n",
1401                                 si->si_ridtxt, fail, 0 );
1402                 } else {
1403                         Debug( LDAP_DEBUG_ANY,
1404                                 "do_syncrepl: %s retrying\n",
1405                                 si->si_ridtxt, 0, 0 );
1406                 }
1407         }
1408
1409         /* Do final delete cleanup */
1410         if ( !si->si_ctype ) {
1411                 cookie_state *cs = NULL;
1412                 syncinfo_t **sip;
1413
1414                 cs = be->be_syncinfo->si_cookieState;
1415                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1416                 *sip = si->si_next;
1417                 syncinfo_free( si, 0 );
1418                 if ( !be->be_syncinfo ) {
1419                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1420                         if ( cs ) {
1421                                 ch_free( cs->cs_sids );
1422                                 ber_bvarray_free( cs->cs_vals );
1423                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1424                                 ch_free( cs );
1425                         }
1426                 }
1427         }
1428         return NULL;
1429 }
1430
1431 static slap_verbmasks modops[] = {
1432         { BER_BVC("add"), LDAP_REQ_ADD },
1433         { BER_BVC("delete"), LDAP_REQ_DELETE },
1434         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1435         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1436         { BER_BVNULL, 0 }
1437 };
1438
1439 static Modifications *
1440 syncrepl_accesslog_mods(
1441         syncinfo_t *si,
1442         struct berval *vals
1443 )
1444 {
1445         char *colon;
1446         const char *text;
1447         AttributeDescription *ad;
1448         struct berval bv, bv2;
1449         short op;
1450         Modifications *mod = NULL, *modlist = NULL, **modtail;
1451         int i;
1452
1453         modtail = &modlist;
1454
1455         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1456                 ad = NULL;
1457                 bv = vals[i];
1458
1459                 colon = ber_bvchr( &bv, ':' );
1460                 if ( !colon ) {
1461                         /* Invalid */
1462                         continue;
1463                 }
1464
1465                 bv.bv_len = colon - bv.bv_val;
1466                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1467                         /* Invalid */
1468                         continue;
1469                 }
1470
1471                 /* Ignore dynamically generated attrs */
1472                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1473                         continue;
1474                 }
1475
1476                 /* Ignore excluded attrs */
1477                 if ( ldap_charray_inlist( si->si_exattrs,
1478                         ad->ad_type->sat_cname.bv_val ) )
1479                 {
1480                         continue;
1481                 }
1482
1483                 switch(colon[1]) {
1484                 case '+':       op = LDAP_MOD_ADD; break;
1485                 case '-':       op = LDAP_MOD_DELETE; break;
1486                 case '=':       op = LDAP_MOD_REPLACE; break;
1487                 case '#':       op = LDAP_MOD_INCREMENT; break;
1488                 default:        continue;
1489                 }
1490
1491                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1492                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1493                         mod->sml_flags = 0;
1494                         mod->sml_op = op;
1495                         mod->sml_next = NULL;
1496                         mod->sml_desc = ad;
1497                         mod->sml_type = ad->ad_cname;
1498                         mod->sml_values = NULL;
1499                         mod->sml_nvalues = NULL;
1500                         mod->sml_numvals = 0;
1501
1502                         *modtail = mod;
1503                         modtail = &mod->sml_next;
1504                 }
1505                 if ( colon[2] == ' ' ) {
1506                         bv.bv_val = colon + 3;
1507                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1508                         ber_dupbv( &bv2, &bv );
1509                         ber_bvarray_add( &mod->sml_values, &bv2 );
1510                         mod->sml_numvals++;
1511                 }
1512         }
1513         return modlist;
1514 }
1515
1516 static Modifications *
1517 syncrepl_changelog_mods(
1518         syncinfo_t *si,
1519         struct berval *vals
1520 )
1521 {
1522         return NULL;    /* FIXME */
1523 }
1524
1525 static int
1526 syncrepl_message_to_op(
1527         syncinfo_t      *si,
1528         Operation       *op,
1529         LDAPMessage     *msg
1530 )
1531 {
1532         BerElement      *ber = NULL;
1533         Modifications   *modlist = NULL;
1534         logschema *ls;
1535         SlapReply rs = { REP_RESULT };
1536         slap_callback cb = { NULL, null_callback, NULL, NULL };
1537
1538         const char      *text;
1539         char txtbuf[SLAP_TEXT_BUFLEN];
1540         size_t textlen = sizeof txtbuf;
1541
1542         struct berval   bdn, dn = BER_BVNULL, ndn;
1543         struct berval   bv, *bvals = NULL;
1544         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1545                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1546                 psup = BER_BVNULL, nsup = BER_BVNULL;
1547         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1548
1549         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1550                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1551                         "Message type should be entry (%d)",
1552                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1553                 return -1;
1554         }
1555
1556         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1557                 ls = &accesslog_sc;
1558         else
1559                 ls = &changelog_sc;
1560
1561         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1562
1563         if ( rc != LDAP_SUCCESS ) {
1564                 Debug( LDAP_DEBUG_ANY,
1565                         "syncrepl_message_to_op: %s dn get failed (%d)",
1566                         si->si_ridtxt, rc, 0 );
1567                 return rc;
1568         }
1569
1570         op->o_tag = LBER_DEFAULT;
1571         op->o_bd = si->si_wbe;
1572
1573         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1574                 == LDAP_SUCCESS ) {
1575                 if ( bv.bv_val == NULL )
1576                         break;
1577
1578                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1579                         bdn = bvals[0];
1580                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1581                         ber_dupbv( &op->o_req_dn, &dn );
1582                         ber_dupbv( &op->o_req_ndn, &ndn );
1583                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1584                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1585                         freeReqDn = 1;
1586                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1587                         int i = verb_to_mask( bvals[0].bv_val, modops );
1588                         if ( i < 0 ) {
1589                                 Debug( LDAP_DEBUG_ANY,
1590                                         "syncrepl_message_to_op: %s unknown op %s",
1591                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1592                                 ch_free( bvals );
1593                                 rc = -1;
1594                                 goto done;
1595                         }
1596                         op->o_tag = modops[i].mask;
1597                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1598                         /* Parse attribute into modlist */
1599                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1600                                 modlist = syncrepl_accesslog_mods( si, bvals );
1601                         } else {
1602                                 modlist = syncrepl_changelog_mods( si, bvals );
1603                         }
1604                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1605                         rdn = bvals[0];
1606                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1607                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1608                                 deleteOldRdn = 1;
1609                         }
1610                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1611                         sup = bvals[0];
1612                 } else if ( !ber_bvstrcasecmp( &bv,
1613                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1614                 {
1615                         slap_queue_csn( op, bvals );
1616                 }
1617                 ch_free( bvals );
1618         }
1619
1620         /* If we didn't get a mod type or a target DN, bail out */
1621         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1622                 rc = -1;
1623                 goto done;
1624         }
1625
1626         op->o_callback = &cb;
1627         slap_op_time( &op->o_time, &op->o_tincr );
1628
1629         switch( op->o_tag ) {
1630         case LDAP_REQ_ADD:
1631         case LDAP_REQ_MODIFY:
1632                 /* If we didn't get required data, bail */
1633                 if ( !modlist ) goto done;
1634
1635                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1636
1637                 if ( rc != LDAP_SUCCESS ) {
1638                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1639                                 "mods check (%s)\n",
1640                                 si->si_ridtxt, text, 0 );
1641                         goto done;
1642                 }
1643
1644                 if ( op->o_tag == LDAP_REQ_ADD ) {
1645                         Entry *e = entry_alloc();
1646                         op->ora_e = e;
1647                         op->ora_e->e_name = op->o_req_dn;
1648                         op->ora_e->e_nname = op->o_req_ndn;
1649                         freeReqDn = 0;
1650                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1651                         if( rc != LDAP_SUCCESS ) {
1652                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1653                                 "mods2entry (%s)\n",
1654                                         si->si_ridtxt, text, 0 );
1655                         } else {
1656                                 rc = op->o_bd->be_add( op, &rs );
1657                                 Debug( LDAP_DEBUG_SYNC,
1658                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1659                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1660                         }
1661                         if ( e == op->ora_e )
1662                                 be_entry_release_w( op, op->ora_e );
1663                 } else {
1664                         op->orm_modlist = modlist;
1665                         op->o_bd = si->si_wbe;
1666                         rc = op->o_bd->be_modify( op, &rs );
1667                         modlist = op->orm_modlist;
1668                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1669                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1670                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1671                         op->o_bd = si->si_be;
1672                 }
1673                 break;
1674         case LDAP_REQ_MODRDN:
1675                 if ( BER_BVISNULL( &rdn ) ) goto done;
1676
1677                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1678                         goto done;
1679                 }
1680                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1681                         goto done;
1682                 }
1683                 if ( !BER_BVISNULL( &sup ) ) {
1684                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1685                                 goto done;
1686                         }
1687                         op->orr_newSup = &psup;
1688                         op->orr_nnewSup = &nsup;
1689                 } else {
1690                         op->orr_newSup = NULL;
1691                         op->orr_nnewSup = NULL;
1692                 }
1693                 op->orr_newrdn = prdn;
1694                 op->orr_nnewrdn = nrdn;
1695                 op->orr_deleteoldrdn = deleteOldRdn;
1696                 op->orr_modlist = NULL;
1697                 if ( slap_modrdn2mods( op, &rs ) ) {
1698                         goto done;
1699                 }
1700
1701                 /* Append modlist for operational attrs */
1702                 {
1703                         Modifications *m;
1704
1705                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1706                                 ;
1707                         m->sml_next = modlist;
1708                         modlist = NULL;
1709                 }
1710                 rc = op->o_bd->be_modrdn( op, &rs );
1711                 slap_mods_free( op->orr_modlist, 1 );
1712                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1713                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1714                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1715                 break;
1716         case LDAP_REQ_DELETE:
1717                 rc = op->o_bd->be_delete( op, &rs );
1718                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1719                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1720                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1721                 break;
1722         }
1723 done:
1724         slap_graduate_commit_csn( op );
1725         op->o_bd = si->si_be;
1726         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1727         BER_BVZERO( &op->o_csn );
1728         if ( modlist ) {
1729                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1730         }
1731         if ( !BER_BVISNULL( &rdn ) ) {
1732                 if ( !BER_BVISNULL( &nsup ) ) {
1733                         ch_free( nsup.bv_val );
1734                 }
1735                 if ( !BER_BVISNULL( &psup ) ) {
1736                         ch_free( psup.bv_val );
1737                 }
1738                 if ( !BER_BVISNULL( &nrdn ) ) {
1739                         ch_free( nrdn.bv_val );
1740                 }
1741                 if ( !BER_BVISNULL( &prdn ) ) {
1742                         ch_free( prdn.bv_val );
1743                 }
1744         }
1745         if ( freeReqDn ) {
1746                 ch_free( op->o_req_ndn.bv_val );
1747                 ch_free( op->o_req_dn.bv_val );
1748         }
1749         ber_free( ber, 0 );
1750         return rc;
1751 }
1752
1753 static int
1754 syncrepl_message_to_entry(
1755         syncinfo_t      *si,
1756         Operation       *op,
1757         LDAPMessage     *msg,
1758         Modifications   **modlist,
1759         Entry                   **entry,
1760         int             syncstate
1761 )
1762 {
1763         Entry           *e = NULL;
1764         BerElement      *ber = NULL;
1765         Modifications   tmp;
1766         Modifications   *mod;
1767         Modifications   **modtail = modlist;
1768
1769         const char      *text;
1770         char txtbuf[SLAP_TEXT_BUFLEN];
1771         size_t textlen = sizeof txtbuf;
1772
1773         struct berval   bdn = BER_BVNULL, dn, ndn;
1774         int             rc, is_ctx;
1775
1776         *modlist = NULL;
1777
1778         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1779                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1780                         "Message type should be entry (%d)",
1781                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1782                 return -1;
1783         }
1784
1785         op->o_tag = LDAP_REQ_ADD;
1786
1787         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1788         if ( rc != LDAP_SUCCESS ) {
1789                 Debug( LDAP_DEBUG_ANY,
1790                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1791                         si->si_ridtxt, rc, 0 );
1792                 return rc;
1793         }
1794
1795         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1796                 /* NOTE: this could be done even before decoding the DN,
1797                  * although encoding errors wouldn't be detected */
1798                 rc = LDAP_SUCCESS;
1799                 goto done;
1800         }
1801
1802         if ( entry == NULL ) {
1803                 return -1;
1804         }
1805
1806         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1807         ber_dupbv( &op->o_req_dn, &dn );
1808         ber_dupbv( &op->o_req_ndn, &ndn );
1809         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1810         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1811
1812         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1813
1814         e = entry_alloc();
1815         e->e_name = op->o_req_dn;
1816         e->e_nname = op->o_req_ndn;
1817
1818         while ( ber_remaining( ber ) ) {
1819                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1820                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1821                 {
1822                         break;
1823                 }
1824
1825                 /* Drop all updates to the contextCSN of the context entry
1826                  * (ITS#4622, etc.)
1827                  */
1828                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1829                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1830                         ber_bvarray_free( tmp.sml_values );
1831                         continue;
1832                 }
1833
1834                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1835
1836                 mod->sml_op = LDAP_MOD_REPLACE;
1837                 mod->sml_flags = 0;
1838                 mod->sml_next = NULL;
1839                 mod->sml_desc = NULL;
1840                 mod->sml_type = tmp.sml_type;
1841                 mod->sml_values = tmp.sml_values;
1842                 mod->sml_nvalues = NULL;
1843                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1844
1845                 *modtail = mod;
1846                 modtail = &mod->sml_next;
1847         }
1848
1849         if ( *modlist == NULL ) {
1850                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1851                         si->si_ridtxt, 0, 0 );
1852                 rc = -1;
1853                 goto done;
1854         }
1855
1856         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1857
1858         if ( rc != LDAP_SUCCESS ) {
1859                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1860                         si->si_ridtxt, text, 0 );
1861                 goto done;
1862         }
1863
1864         /* Strip out dynamically generated attrs */
1865         for ( modtail = modlist; *modtail ; ) {
1866                 mod = *modtail;
1867                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1868                         *modtail = mod->sml_next;
1869                         slap_mod_free( &mod->sml_mod, 0 );
1870                         ch_free( mod );
1871                 } else {
1872                         modtail = &mod->sml_next;
1873                 }
1874         }
1875
1876         /* Strip out attrs in exattrs list */
1877         for ( modtail = modlist; *modtail ; ) {
1878                 mod = *modtail;
1879                 if ( ldap_charray_inlist( si->si_exattrs,
1880                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1881                 {
1882                         *modtail = mod->sml_next;
1883                         slap_mod_free( &mod->sml_mod, 0 );
1884                         ch_free( mod );
1885                 } else {
1886                         modtail = &mod->sml_next;
1887                 }
1888         }
1889
1890         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1891         if( rc != LDAP_SUCCESS ) {
1892                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1893                         si->si_ridtxt, text, 0 );
1894         }
1895
1896 done:
1897         ber_free( ber, 0 );
1898         if ( rc != LDAP_SUCCESS ) {
1899                 if ( e ) {
1900                         entry_free( e );
1901                         e = NULL;
1902                 }
1903         }
1904         if ( entry )
1905                 *entry = e;
1906
1907         return rc;
1908 }
1909
1910 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1911
1912 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1913  * entry if a previous refresh was interrupted before sending us a new
1914  * context state. We try to compare the new entry to the existing entry
1915  * and ignore the new entry if they are the same.
1916  *
1917  * Also, we may get an update where the entryDN has changed, due to
1918  * a ModDn on the provider. We detect this as well, so we can issue
1919  * the corresponding operation locally.
1920  *
1921  * In the case of a modify, we get a list of all the attributes
1922  * in the original entry. Rather than deleting the entry and re-adding it,
1923  * we issue a Modify request that deletes all the attributes and adds all
1924  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1925  * entry.
1926  *
1927  * We otherwise distinguish ModDN from Modify; in the case of
1928  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1929  * operational attributes from the entry, and do a regular ModDN.
1930  */
1931 typedef struct dninfo {
1932         Entry *new_entry;
1933         struct berval dn;
1934         struct berval ndn;
1935         struct berval nnewSup;
1936         int renamed;    /* Was an existing entry renamed? */
1937         int delOldRDN;  /* Was old RDN deleted? */
1938         Modifications **modlist;        /* the modlist we received */
1939         Modifications *mods;    /* the modlist we compared */
1940         Attribute *oldNattr;    /* old naming attr */
1941         AttributeDescription *oldDesc;  /* for renames */
1942         AttributeDescription *newDesc;  /* for renames */
1943 } dninfo;
1944
1945 /* return 1 if inserted, 0 otherwise */
1946 static int
1947 avl_presentlist_insert(
1948         syncinfo_t* si,
1949         struct berval *syncUUID )
1950 {
1951         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1952
1953         syncuuid_bv->bv_len = syncUUID->bv_len;
1954         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1955         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1956         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1957
1958         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1959                 syncuuid_cmp, avl_dup_error ) )
1960         {
1961                 ch_free( syncuuid_bv );
1962                 return 0;
1963         }
1964
1965         return 1;
1966 }
1967
1968 static int
1969 syncrepl_entry(
1970         syncinfo_t* si,
1971         Operation *op,
1972         Entry* entry,
1973         Modifications** modlist,
1974         int syncstate,
1975         struct berval* syncUUID,
1976         struct berval* syncCSN )
1977 {
1978         Backend *be = op->o_bd;
1979         slap_callback   cb = { NULL, NULL, NULL, NULL };
1980         int syncuuid_inserted = 0;
1981         struct berval   syncUUID_strrep = BER_BVNULL;
1982
1983         SlapReply       rs_search = {REP_RESULT};
1984         SlapReply       rs_delete = {REP_RESULT};
1985         SlapReply       rs_add = {REP_RESULT};
1986         SlapReply       rs_modify = {REP_RESULT};
1987         Filter f = {0};
1988         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1989         int rc = LDAP_SUCCESS;
1990
1991         struct berval pdn = BER_BVNULL;
1992         dninfo dni = {0};
1993         int     retry = 1;
1994         int     freecsn = 1;
1995
1996         Debug( LDAP_DEBUG_SYNC,
1997                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1998                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1999
2000         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2001                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2002                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2003                 }
2004         }
2005
2006         if ( syncstate == LDAP_SYNC_PRESENT ) {
2007                 return 0;
2008         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2009                 if ( entry == NULL ) {
2010                         return 0;
2011                 }
2012         }
2013
2014         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2015         if ( syncstate != LDAP_SYNC_DELETE ) {
2016                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2017
2018                 if ( a == NULL ) {
2019                         /* add if missing */
2020                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2021                                 &syncUUID_strrep, syncUUID );
2022
2023                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2024                         /* replace only if necessary */
2025                         if ( a->a_nvals != a->a_vals ) {
2026                                 ber_memfree( a->a_nvals[0].bv_val );
2027                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2028                         }
2029                         ber_memfree( a->a_vals[0].bv_val );
2030                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2031                 }
2032         }
2033
2034         f.f_choice = LDAP_FILTER_EQUALITY;
2035         f.f_ava = &ava;
2036         ava.aa_desc = slap_schema.si_ad_entryUUID;
2037         ava.aa_value = *syncUUID;
2038
2039         if ( syncuuid_inserted ) {
2040                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2041                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2042         }
2043         op->ors_filter = &f;
2044
2045         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2046         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2047                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2048         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2049         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2050                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2051         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2052         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2053
2054         op->o_tag = LDAP_REQ_SEARCH;
2055         op->ors_scope = LDAP_SCOPE_SUBTREE;
2056         op->ors_deref = LDAP_DEREF_NEVER;
2057
2058         /* get the entry for this UUID */
2059         op->o_req_dn = si->si_base;
2060         op->o_req_ndn = si->si_base;
2061
2062         op->o_time = slap_get_time();
2063         op->ors_tlimit = SLAP_NO_LIMIT;
2064         op->ors_slimit = 1;
2065
2066         op->ors_attrs = slap_anlist_all_attributes;
2067         op->ors_attrsonly = 0;
2068
2069         /* set callback function */
2070         op->o_callback = &cb;
2071         cb.sc_response = dn_callback;
2072         cb.sc_private = &dni;
2073         dni.new_entry = entry;
2074         dni.modlist = modlist;
2075
2076         if ( limits_check( op, &rs_search ) == 0 ) {
2077                 rc = be->be_search( op, &rs_search );
2078                 Debug( LDAP_DEBUG_SYNC,
2079                                 "syncrepl_entry: %s be_search (%d)\n",
2080                                 si->si_ridtxt, rc, 0 );
2081         }
2082
2083         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2084                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2085         }
2086
2087         cb.sc_response = null_callback;
2088         cb.sc_private = si;
2089
2090         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2091                 Debug( LDAP_DEBUG_SYNC,
2092                                 "syncrepl_entry: %s %s\n",
2093                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2094         } else {
2095                 Debug( LDAP_DEBUG_SYNC,
2096                                 "syncrepl_entry: %s %s\n",
2097                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2098         }
2099
2100         assert( BER_BVISNULL( &op->o_csn ) );
2101         if ( syncCSN ) {
2102                 slap_queue_csn( op, syncCSN );
2103         }
2104
2105         slap_op_time( &op->o_time, &op->o_tincr );
2106         switch ( syncstate ) {
2107         case LDAP_SYNC_ADD:
2108         case LDAP_SYNC_MODIFY:
2109                 if ( BER_BVISNULL( &op->o_csn ))
2110                 {
2111
2112                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2113                         if ( a ) {
2114                                 /* FIXME: op->o_csn is assumed to be
2115                                  * on the thread's slab; this needs
2116                                  * to be cleared ASAP.
2117                                  * What happens if already present?
2118                                  */
2119                                 assert( BER_BVISNULL( &op->o_csn ) );
2120                                 op->o_csn = a->a_vals[0];
2121                                 freecsn = 0;
2122                         }
2123                 }
2124 retry_add:;
2125                 if ( BER_BVISNULL( &dni.dn ) ) {
2126
2127                         op->o_req_dn = entry->e_name;
2128                         op->o_req_ndn = entry->e_nname;
2129                         op->o_tag = LDAP_REQ_ADD;
2130                         op->ora_e = entry;
2131                         op->o_bd = si->si_wbe;
2132
2133                         rc = op->o_bd->be_add( op, &rs_add );
2134                         Debug( LDAP_DEBUG_SYNC,
2135                                         "syncrepl_entry: %s be_add (%d)\n",
2136                                         si->si_ridtxt, rc, 0 );
2137                         switch ( rs_add.sr_err ) {
2138                         case LDAP_SUCCESS:
2139                                 if ( op->ora_e == entry ) {
2140                                         be_entry_release_w( op, entry );
2141                                 }
2142                                 entry = NULL;
2143                                 break;
2144
2145                         case LDAP_REFERRAL:
2146                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2147                          * only if the suffix entry is not present */
2148                         case LDAP_NO_SUCH_OBJECT:
2149                                 rc = syncrepl_add_glue( op, entry );
2150                                 entry = NULL;
2151                                 break;
2152
2153                         /* if an entry was added via syncrepl_add_glue(),
2154                          * it likely has no entryUUID, so the previous
2155                          * be_search() doesn't find it.  In this case,
2156                          * give syncrepl a chance to modify it. Also
2157                          * allow for entries that were recreated with the
2158                          * same DN but a different entryUUID.
2159                          */
2160                         case LDAP_ALREADY_EXISTS:
2161                                 if ( retry ) {
2162                                         Operation       op2 = *op;
2163                                         SlapReply       rs2 = { 0 };
2164                                         slap_callback   cb2 = { 0 };
2165
2166                                         op2.o_bd = be;
2167                                         op2.o_tag = LDAP_REQ_SEARCH;
2168                                         op2.o_req_dn = entry->e_name;
2169                                         op2.o_req_ndn = entry->e_nname;
2170                                         op2.ors_scope = LDAP_SCOPE_BASE;
2171                                         op2.ors_deref = LDAP_DEREF_NEVER;
2172                                         op2.ors_attrs = slap_anlist_all_attributes;
2173                                         op2.ors_attrsonly = 0;
2174                                         op2.ors_limit = NULL;
2175                                         op2.ors_slimit = 1;
2176                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2177
2178                                         f.f_choice = LDAP_FILTER_PRESENT;
2179                                         f.f_desc = slap_schema.si_ad_objectClass;
2180                                         op2.ors_filter = &f;
2181                                         op2.ors_filterstr = generic_filterstr;
2182
2183                                         op2.o_callback = &cb2;
2184                                         cb2.sc_response = dn_callback;
2185                                         cb2.sc_private = &dni;
2186
2187                                         rc = be->be_search( &op2, &rs2 );
2188                                         if ( rc ) goto done;
2189
2190                                         retry = 0;
2191                                         slap_op_time( &op->o_time, &op->o_tincr );
2192                                         goto retry_add;
2193                                 }
2194                                 /* FALLTHRU */
2195
2196                         default:
2197                                 Debug( LDAP_DEBUG_ANY,
2198                                         "syncrepl_entry: %s be_add failed (%d)\n",
2199                                         si->si_ridtxt, rs_add.sr_err, 0 );
2200                                 break;
2201                         }
2202                         op->o_bd = be;
2203                         goto done;
2204                 }
2205                 /* FALLTHRU */
2206                 op->o_req_dn = dni.dn;
2207                 op->o_req_ndn = dni.ndn;
2208                 if ( dni.renamed ) {
2209                         struct berval noldp, newp;
2210                         Modifications *mod, **modtail, **ml, *m2;
2211                         int i, got_replace = 0, just_rename = 0;
2212
2213                         op->o_tag = LDAP_REQ_MODRDN;
2214                         dnRdn( &entry->e_name, &op->orr_newrdn );
2215                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2216
2217                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2218                                 dnParent( &entry->e_name, &newp );
2219                                 op->orr_newSup = &newp;
2220                                 op->orr_nnewSup = &dni.nnewSup;
2221                         } else {
2222                                 op->orr_newSup = NULL;
2223                                 op->orr_nnewSup = NULL;
2224                         }
2225                         op->orr_deleteoldrdn = dni.delOldRDN;
2226                         op->orr_modlist = NULL;
2227                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2228                                 goto done;
2229                         }
2230
2231                         /* Drop the RDN-related mods from this op, because their
2232                          * equivalents were just setup by slap_modrdn2mods.
2233                          *
2234                          * If delOldRDN is TRUE then we should see a delete modop
2235                          * for oldDesc. We might see a replace instead.
2236                          *  delete with no values: therefore newDesc != oldDesc.
2237                          *   if oldNattr had only one value, then Drop this op.
2238                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2239                          *  delete with N values: Drop oldRDN value, keep remainder.
2240                          *  replace with 1 value: if oldNattr had only one value and
2241                          *     newDesc == oldDesc, Drop this op.
2242                          * Any other cases must be left intact.
2243                          *
2244                          * We should also see an add modop for newDesc. (But not if
2245                          * we got a replace modop due to delOldRDN.) If it has
2246                          * multiple values, we'll have to drop the new RDN value.
2247                          */
2248                         modtail = &op->orr_modlist;
2249                         if ( dni.delOldRDN ) {
2250                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2251                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2252                                                 mod = *ml;
2253                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2254                                                         dni.oldDesc != dni.newDesc ) {
2255                                                         /* This Replace is due to other Mods.
2256                                                          * Just let it ride.
2257                                                          */
2258                                                         continue;
2259                                                 }
2260                                                 if ( mod->sml_numvals <= 1 &&
2261                                                         dni.oldNattr->a_numvals == 1 &&
2262                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2263                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2264                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2265                                                                 got_replace = 1;
2266                                                         /* Drop this op */
2267                                                         *ml = mod->sml_next;
2268                                                         mod->sml_next = NULL;
2269                                                         slap_mods_free( mod, 1 );
2270                                                         break;
2271                                                 }
2272                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2273                                                         continue;
2274                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2275                                                         if ( m2->sml_desc == dni.oldDesc &&
2276                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2277                                                 }
2278                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2279                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2280                                                                 mod->sml_numvals--;
2281                                                                 ch_free( mod->sml_values[i].bv_val );
2282                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2283                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2284                                                                 if ( mod->sml_nvalues ) {
2285                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2286                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2287                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2288                                                                 }
2289                                                                 break;
2290                                                         }
2291                                                 }
2292                                                 break;
2293                                         }
2294                                 }
2295                         }
2296                         if ( !got_replace ) {
2297                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2298                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2299                                                 mod = *ml;
2300                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2301                                                         continue;
2302                                                 if ( mod->sml_numvals == 1 ) {
2303                                                         /* Drop this op */
2304                                                         *ml = mod->sml_next;
2305                                                         mod->sml_next = NULL;
2306                                                         slap_mods_free( mod, 1 );
2307                                                         break;
2308                                                 }
2309                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2310                                                         if ( m2->sml_desc == dni.oldDesc &&
2311                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2312                                                 }
2313                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2314                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2315                                                                 mod->sml_numvals--;
2316                                                                 ch_free( mod->sml_values[i].bv_val );
2317                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2318                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2319                                                                 if ( mod->sml_nvalues ) {
2320                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2321                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2322                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2323                                                                 }
2324                                                                 break;
2325                                                         }
2326                                                 }
2327                                                 break;
2328                                         }
2329                                 }
2330                         }
2331
2332                         /* RDNs must be NUL-terminated for back-ldap */
2333                         noldp = op->orr_newrdn;
2334                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2335                         noldp = op->orr_nnewrdn;
2336                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2337
2338                         /* Setup opattrs too */
2339                         {
2340                                 static AttributeDescription *nullattr = NULL;
2341                                 static AttributeDescription **const opattrs[] = {
2342                                         &slap_schema.si_ad_entryCSN,
2343                                         &slap_schema.si_ad_modifiersName,
2344                                         &slap_schema.si_ad_modifyTimestamp,
2345                                         &nullattr
2346                                 };
2347                                 AttributeDescription *opattr;
2348                                 int i;
2349
2350                                 modtail = &m2;
2351                                 /* pull mod off incoming modlist */
2352                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2353                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2354                                         {
2355                                                 if ( (*ml)->sml_desc == opattr ) {
2356                                                         mod = *ml;
2357                                                         *ml = mod->sml_next;
2358                                                         mod->sml_next = NULL;
2359                                                         *modtail = mod;
2360                                                         modtail = &mod->sml_next;
2361                                                         break;
2362                                                 }
2363                                         }
2364                                 }
2365                                 /* If there are still Modifications left, put the opattrs
2366                                  * back, and let be_modify run. Otherwise, append the opattrs
2367                                  * to the orr_modlist.
2368                                  */
2369                                 if ( dni.mods ) {
2370                                         mod = dni.mods;
2371                                         /* don't set a CSN for the rename op */
2372                                         if ( syncCSN )
2373                                                 slap_graduate_commit_csn( op );
2374                                 } else {
2375                                         mod = op->orr_modlist;
2376                                         just_rename = 1;
2377                                 }
2378                                 for ( ; mod->sml_next; mod=mod->sml_next );
2379                                 mod->sml_next = m2;
2380                         }
2381                         op->o_bd = si->si_wbe;
2382                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2383                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2384                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2385
2386                         slap_mods_free( op->orr_modlist, 1 );
2387                         Debug( LDAP_DEBUG_SYNC,
2388                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2389                                         si->si_ridtxt, rc, 0 );
2390                         op->o_bd = be;
2391                         /* Renamed entries may still have other mods so just fallthru */
2392                         op->o_req_dn = entry->e_name;
2393                         op->o_req_ndn = entry->e_nname;
2394                         /* Use CSN on the modify */
2395                         if ( syncCSN && !just_rename )
2396                                 slap_queue_csn( op, syncCSN );
2397                 }
2398                 if ( dni.mods ) {
2399                         op->o_tag = LDAP_REQ_MODIFY;
2400                         op->orm_modlist = dni.mods;
2401                         op->orm_no_opattrs = 1;
2402                         op->o_bd = si->si_wbe;
2403
2404                         rc = op->o_bd->be_modify( op, &rs_modify );
2405                         slap_mods_free( op->orm_modlist, 1 );
2406                         op->orm_no_opattrs = 0;
2407                         Debug( LDAP_DEBUG_SYNC,
2408                                         "syncrepl_entry: %s be_modify (%d)\n",
2409                                         si->si_ridtxt, rc, 0 );
2410                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2411                                 Debug( LDAP_DEBUG_ANY,
2412                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2413                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2414                         }
2415                         op->o_bd = be;
2416                 } else if ( !dni.renamed ) {
2417                         Debug( LDAP_DEBUG_SYNC,
2418                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2419                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2420                 }
2421                 goto done;
2422         case LDAP_SYNC_DELETE :
2423                 if ( !BER_BVISNULL( &dni.dn ) ) {
2424                         op->o_req_dn = dni.dn;
2425                         op->o_req_ndn = dni.ndn;
2426                         op->o_tag = LDAP_REQ_DELETE;
2427                         op->o_bd = si->si_wbe;
2428                         rc = op->o_bd->be_delete( op, &rs_delete );
2429                         Debug( LDAP_DEBUG_SYNC,
2430                                         "syncrepl_entry: %s be_delete (%d)\n",
2431                                         si->si_ridtxt, rc, 0 );
2432
2433                         while ( rs_delete.sr_err == LDAP_SUCCESS
2434                                 && op->o_delete_glue_parent ) {
2435                                 op->o_delete_glue_parent = 0;
2436                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2437                                         slap_callback cb = { NULL };
2438                                         cb.sc_response = slap_null_cb;
2439                                         dnParent( &op->o_req_ndn, &pdn );
2440                                         op->o_req_dn = pdn;
2441                                         op->o_req_ndn = pdn;
2442                                         op->o_callback = &cb;
2443                                         op->o_bd->be_delete( op, &rs_delete );
2444                                 } else {
2445                                         break;
2446                                 }
2447                         }
2448                         op->o_bd = be;
2449                 }
2450                 goto done;
2451
2452         default :
2453                 Debug( LDAP_DEBUG_ANY,
2454                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2455                 goto done;
2456         }
2457
2458 done:
2459         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2460                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2461                 BER_BVZERO( &syncUUID_strrep );
2462         }
2463         if ( !BER_BVISNULL( &dni.ndn ) ) {
2464                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2465         }
2466         if ( !BER_BVISNULL( &dni.dn ) ) {
2467                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2468         }
2469         if ( entry ) {
2470                 entry_free( entry );
2471         }
2472         if ( syncCSN ) {
2473                 slap_graduate_commit_csn( op );
2474         }
2475         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2476                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2477         }
2478         BER_BVZERO( &op->o_csn );
2479         return rc;
2480 }
2481
2482 static struct berval gcbva[] = {
2483         BER_BVC("top"),
2484         BER_BVC("glue"),
2485         BER_BVNULL
2486 };
2487
2488 #define NP_DELETE_ONE   2
2489
2490 static void
2491 syncrepl_del_nonpresent(
2492         Operation *op,
2493         syncinfo_t *si,
2494         BerVarray uuids,
2495         struct sync_cookie *sc,
2496         int m )
2497 {
2498         Backend* be = op->o_bd;
2499         slap_callback   cb = { NULL };
2500         SlapReply       rs_search = {REP_RESULT};
2501         SlapReply       rs_delete = {REP_RESULT};
2502         SlapReply       rs_modify = {REP_RESULT};
2503         struct nonpresent_entry *np_list, *np_prev;
2504         int rc;
2505         AttributeName   an[2];
2506
2507         struct berval pdn = BER_BVNULL;
2508         struct berval csn;
2509
2510         op->o_req_dn = si->si_base;
2511         op->o_req_ndn = si->si_base;
2512
2513         cb.sc_response = nonpresent_callback;
2514         cb.sc_private = si;
2515
2516         op->o_callback = &cb;
2517         op->o_tag = LDAP_REQ_SEARCH;
2518         op->ors_scope = si->si_scope;
2519         op->ors_deref = LDAP_DEREF_NEVER;
2520         op->o_time = slap_get_time();
2521         op->ors_tlimit = SLAP_NO_LIMIT;
2522
2523
2524         if ( uuids ) {
2525                 Filter uf;
2526                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2527                 int i;
2528
2529                 op->ors_attrsonly = 1;
2530                 op->ors_attrs = slap_anlist_no_attrs;
2531                 op->ors_limit = NULL;
2532                 op->ors_filter = &uf;
2533
2534                 uf.f_ava = &eq;
2535                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2536                 uf.f_next = NULL;
2537                 uf.f_choice = LDAP_FILTER_EQUALITY;
2538                 si->si_refreshDelete |= NP_DELETE_ONE;
2539
2540                 for (i=0; uuids[i].bv_val; i++) {
2541                         op->ors_slimit = 1;
2542                         uf.f_av_value = uuids[i];
2543                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2544                         rc = be->be_search( op, &rs_search );
2545                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2546                 }
2547                 si->si_refreshDelete ^= NP_DELETE_ONE;
2548         } else {
2549                 Filter *cf, *of;
2550
2551                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2552                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2553                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2554                 op->ors_attrs = an;
2555                 op->ors_slimit = SLAP_NO_LIMIT;
2556                 op->ors_attrsonly = 0;
2557                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2558                 /* In multimaster, updates can continue to arrive while
2559                  * we're searching. Limit the search result to entries
2560                  * older than all of our cookie CSNs.
2561                  */
2562                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2563                         Filter *f;
2564                         int i;
2565                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2566                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2567                         f = cf;
2568                         f->f_choice = LDAP_FILTER_AND;
2569                         f->f_next = NULL;
2570                         f->f_and = f+1;
2571                         of = f->f_and;
2572                         for ( i=0; i<sc->numcsns; i++ ) {
2573                                 f = of;
2574                                 f->f_choice = LDAP_FILTER_LE;
2575                                 f->f_ava = (AttributeAssertion *)(f+1);
2576                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2577                                 f->f_av_value = sc->ctxcsn[i];
2578                                 f->f_next = (Filter *)(f->f_ava+1);
2579                                 of = f->f_next;
2580                         }
2581                         f->f_next = op->ors_filter;
2582                         of = op->ors_filter;
2583                         op->ors_filter = cf;
2584                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2585                 } else {
2586                         cf = NULL;
2587                         op->ors_filterstr = si->si_filterstr;
2588                 }
2589                 op->o_nocaching = 1;
2590
2591                 if ( limits_check( op, &rs_search ) == 0 ) {
2592                         rc = be->be_search( op, &rs_search );
2593                 }
2594                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2595                         op->o_tmpfree( cf, op->o_tmpmemctx );
2596                         op->ors_filter = of;
2597                 }
2598                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2599                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2600                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2601                 }
2602
2603         }
2604
2605         op->o_nocaching = 0;
2606
2607         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2608
2609                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2610                         csn = sc->ctxcsn[m];
2611                 } else {
2612                         csn = si->si_syncCookie.ctxcsn[0];
2613                 }
2614
2615                 op->o_bd = si->si_wbe;
2616                 slap_queue_csn( op, &csn );
2617
2618                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2619                 while ( np_list != NULL ) {
2620                         LDAP_LIST_REMOVE( np_list, npe_link );
2621                         np_prev = np_list;
2622                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2623                         op->o_tag = LDAP_REQ_DELETE;
2624                         op->o_callback = &cb;
2625                         cb.sc_response = null_callback;
2626                         cb.sc_private = si;
2627                         op->o_req_dn = *np_prev->npe_name;
2628                         op->o_req_ndn = *np_prev->npe_nname;
2629                         rc = op->o_bd->be_delete( op, &rs_delete );
2630                         Debug( LDAP_DEBUG_SYNC,
2631                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2632                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2633
2634                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2635                                 Modifications mod1, mod2;
2636                                 mod1.sml_op = LDAP_MOD_REPLACE;
2637                                 mod1.sml_flags = 0;
2638                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2639                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2640                                 mod1.sml_numvals = 2;
2641                                 mod1.sml_values = &gcbva[0];
2642                                 mod1.sml_nvalues = NULL;
2643                                 mod1.sml_next = &mod2;
2644
2645                                 mod2.sml_op = LDAP_MOD_REPLACE;
2646                                 mod2.sml_flags = 0;
2647                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2648                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2649                                 mod2.sml_numvals = 1;
2650                                 mod2.sml_values = &gcbva[1];
2651                                 mod2.sml_nvalues = NULL;
2652                                 mod2.sml_next = NULL;
2653
2654                                 op->o_tag = LDAP_REQ_MODIFY;
2655                                 op->orm_modlist = &mod1;
2656
2657                                 rc = op->o_bd->be_modify( op, &rs_modify );
2658                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2659                         }
2660
2661                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2662                                         op->o_delete_glue_parent ) {
2663                                 op->o_delete_glue_parent = 0;
2664                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2665                                         slap_callback cb = { NULL };
2666                                         cb.sc_response = slap_null_cb;
2667                                         dnParent( &op->o_req_ndn, &pdn );
2668                                         op->o_req_dn = pdn;
2669                                         op->o_req_ndn = pdn;
2670                                         op->o_callback = &cb;
2671                                         /* give it a root privil ? */
2672                                         op->o_bd->be_delete( op, &rs_delete );
2673                                 } else {
2674                                         break;
2675                                 }
2676                         }
2677
2678                         op->o_delete_glue_parent = 0;
2679
2680                         ber_bvfree( np_prev->npe_name );
2681                         ber_bvfree( np_prev->npe_nname );
2682                         ch_free( np_prev );
2683
2684                         if ( slapd_shutdown ) {
2685                                 break;
2686                         }
2687                 }
2688
2689                 slap_graduate_commit_csn( op );
2690                 op->o_bd = be;
2691
2692                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2693                 BER_BVZERO( &op->o_csn );
2694         }
2695
2696         return;
2697 }
2698
2699 int
2700 syncrepl_add_glue(
2701         Operation* op,
2702         Entry *e )
2703 {
2704         Backend *be = op->o_bd;
2705         slap_callback cb = { NULL };
2706         Attribute       *a;
2707         int     rc;
2708         int suffrdns;
2709         int i;
2710         struct berval dn = BER_BVNULL;
2711         struct berval ndn = BER_BVNULL;
2712         Entry   *glue;
2713         SlapReply       rs_add = {REP_RESULT};
2714         struct berval   ptr, nptr;
2715         char            *comma;
2716
2717         op->o_tag = LDAP_REQ_ADD;
2718         op->o_callback = &cb;
2719         cb.sc_response = null_callback;
2720         cb.sc_private = NULL;
2721
2722         dn = e->e_name;
2723         ndn = e->e_nname;
2724
2725         /* count RDNs in suffix */
2726         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2727                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2728                         comma++;
2729                         ptr.bv_len -= comma - ptr.bv_val;
2730                         ptr.bv_val = comma;
2731                         i++;
2732                 }
2733                 suffrdns = i;
2734         } else {
2735                 /* suffix is "" */
2736                 suffrdns = 0;
2737         }
2738
2739         /* Start with BE suffix */
2740         ptr = dn;
2741         for ( i = 0; i < suffrdns; i++ ) {
2742                 comma = ber_bvrchr( &ptr, ',' );
2743                 if ( comma != NULL ) {
2744                         ptr.bv_len = comma - ptr.bv_val;
2745                 } else {
2746                         ptr.bv_len = 0;
2747                         break;
2748                 }
2749         }
2750
2751         if ( !BER_BVISEMPTY( &ptr ) ) {
2752                 dn.bv_len -= ptr.bv_len + 1;
2753                 dn.bv_val += ptr.bv_len + 1;
2754         }
2755
2756         /* the normalizedDNs are always the same length, no counting
2757          * required.
2758          */
2759         nptr = ndn;
2760         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2761                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2762                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2763
2764                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2765
2766         } else {
2767                 nptr.bv_len = 0;
2768         }
2769
2770         while ( ndn.bv_val > e->e_nname.bv_val ) {
2771                 glue = entry_alloc();
2772                 ber_dupbv( &glue->e_name, &dn );
2773                 ber_dupbv( &glue->e_nname, &ndn );
2774
2775                 a = attr_alloc( slap_schema.si_ad_objectClass );
2776
2777                 a->a_numvals = 2;
2778                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2779                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2780                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2781                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2782
2783                 a->a_nvals = a->a_vals;
2784
2785                 a->a_next = glue->e_attrs;
2786                 glue->e_attrs = a;
2787
2788                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2789
2790                 a->a_numvals = 1;
2791                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2792                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2793                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2794
2795                 a->a_nvals = a->a_vals;
2796
2797                 a->a_next = glue->e_attrs;
2798                 glue->e_attrs = a;
2799
2800                 op->o_req_dn = glue->e_name;
2801                 op->o_req_ndn = glue->e_nname;
2802                 op->ora_e = glue;
2803                 rc = be->be_add ( op, &rs_add );
2804                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2805                         if ( op->ora_e == glue )
2806                                 be_entry_release_w( op, glue );
2807                 } else {
2808                 /* incl. ALREADY EXIST */
2809                         entry_free( glue );
2810                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2811                                 entry_free( e );
2812                                 return rc;
2813                         }
2814                 }
2815
2816                 /* Move to next child */
2817                 comma = ber_bvrchr( &ptr, ',' );
2818                 if ( comma == NULL ) {
2819                         break;
2820                 }
2821                 ptr.bv_len = comma - ptr.bv_val;
2822
2823                 dn.bv_val = ++comma;
2824                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2825
2826                 comma = ber_bvrchr( &nptr, ',' );
2827                 assert( comma != NULL );
2828                 nptr.bv_len = comma - nptr.bv_val;
2829
2830                 ndn.bv_val = ++comma;
2831                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2832         }
2833
2834         op->o_req_dn = e->e_name;
2835         op->o_req_ndn = e->e_nname;
2836         op->ora_e = e;
2837         rc = be->be_add ( op, &rs_add );
2838         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2839                 if ( op->ora_e == e )
2840                         be_entry_release_w( op, e );
2841         } else {
2842                 entry_free( e );
2843         }
2844
2845         return rc;
2846 }
2847
2848 static int
2849 syncrepl_updateCookie(
2850         syncinfo_t *si,
2851         Operation *op,
2852         struct berval *pdn,
2853         struct sync_cookie *syncCookie )
2854 {
2855         Backend *be = op->o_bd;
2856         Modifications mod;
2857         struct berval first = BER_BVNULL;
2858
2859         int rc, i, j;
2860         ber_len_t len;
2861
2862         slap_callback cb = { NULL };
2863         SlapReply       rs_modify = {REP_RESULT};
2864
2865         mod.sml_op = LDAP_MOD_REPLACE;
2866         mod.sml_desc = slap_schema.si_ad_contextCSN;
2867         mod.sml_type = mod.sml_desc->ad_cname;
2868         mod.sml_flags = SLAP_MOD_INTERNAL;
2869         mod.sml_nvalues = NULL;
2870         mod.sml_next = NULL;
2871
2872         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2873
2874         /* clone the cookieState CSNs so we can Replace the whole thing */
2875         mod.sml_numvals = si->si_cookieState->cs_num;
2876         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2877         for ( i=0; i<mod.sml_numvals; i++ )
2878                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2879         BER_BVZERO( &mod.sml_values[i] );
2880
2881         /* find any CSNs in the syncCookie that are newer than the cookieState */
2882         for ( i=0; i<syncCookie->numcsns; i++ ) {
2883                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2884                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2885                                 continue;
2886                         len = syncCookie->ctxcsn[i].bv_len;
2887                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2888                                 len = si->si_cookieState->cs_vals[j].bv_len;
2889                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2890                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2891                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2892                                 if ( BER_BVISNULL( &first ) ) {
2893                                         first = syncCookie->ctxcsn[i];
2894
2895                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2896                                 {
2897                                         first = syncCookie->ctxcsn[i];
2898                                 }
2899                         }
2900                         break;
2901                 }
2902                 /* there was no match for this SID, it's a new CSN */
2903                 if ( j == si->si_cookieState->cs_num ) {
2904                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2905                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2906                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2907                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2908                         if ( BER_BVISNULL( &first ) ) {
2909                                 first = syncCookie->ctxcsn[i];
2910                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2911                         {
2912                                 first = syncCookie->ctxcsn[i];
2913                         }
2914                 }
2915         }
2916         /* Should never happen, ITS#5065 */
2917         if ( BER_BVISNULL( &first )) {
2918                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2919                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2920                 return 0;
2921         }
2922         op->o_bd = si->si_wbe;
2923         slap_queue_csn( op, &first );
2924
2925         op->o_tag = LDAP_REQ_MODIFY;
2926
2927         cb.sc_response = null_callback;
2928         cb.sc_private = si;
2929
2930         op->o_callback = &cb;
2931         op->o_req_dn = op->o_bd->be_suffix[0];
2932         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2933
2934         /* update contextCSN */
2935         op->o_dont_replicate = 1;
2936
2937         op->orm_modlist = &mod;
2938         op->orm_no_opattrs = 1;
2939         rc = op->o_bd->be_modify( op, &rs_modify );
2940         op->orm_no_opattrs = 0;
2941         op->o_dont_replicate = 0;
2942
2943         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2944                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2945                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2946                 /* If we replaced any old values */
2947                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2948                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2949                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2950                                                 &mod.sml_values[i] );
2951                 }
2952                 /* Handle any added values */
2953                 if ( i < mod.sml_numvals ) {
2954                         si->si_cookieState->cs_num = mod.sml_numvals;
2955                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2956                         free( si->si_cookieState->cs_sids );
2957                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2958                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2959                 }
2960
2961                 si->si_cookieState->cs_age++;
2962                 si->si_cookieAge = si->si_cookieState->cs_age;
2963         } else {
2964                 Debug( LDAP_DEBUG_ANY,
2965                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2966                         si->si_ridtxt, rs_modify.sr_err, 0 );
2967         }
2968         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2969
2970         op->o_bd = be;
2971         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2972         BER_BVZERO( &op->o_csn );
2973         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2974         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2975
2976         return rc;
2977 }
2978
2979 static void
2980 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2981         Modifications ***mret, Modifications ***mcur )
2982 {
2983         int i, j;
2984         Modifications *mod, **modtail;
2985
2986         modtail = *mret;
2987
2988         if ( old ) {
2989                 int n, o, nn, no;
2990                 struct berval **adds, **dels;
2991                 /* count old and new */
2992                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2993                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2994
2995                 /* there MUST be both old and new values */
2996                 assert( o != 0 );
2997                 assert( n != 0 );
2998                 j = 0;
2999
3000                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3001                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3002
3003                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3004                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3005
3006                 nn = n; no = o;
3007
3008                 for ( i=0; i<o; i++ ) {
3009                         for ( j=0; j<n; j++ ) {
3010                                 if ( !adds[j] )
3011                                         continue;
3012                                 if ( bvmatch( dels[i], adds[j] ) ) {
3013                                         no--;
3014                                         nn--;
3015                                         adds[j] = NULL;
3016                                         dels[i] = NULL;
3017                                         break;
3018                                 }
3019                         }
3020                 }
3021
3022                 /* Don't delete/add an objectClass, always use the replace op.
3023                  * Modify would fail if provider has replaced entry with a new,
3024                  * and the new explicitly includes a superior of a class that was
3025                  * only included implicitly in the old entry.  Ref ITS#5517.
3026                  *
3027                  * Also use replace op if attr has no equality matching rule.
3028                  * (ITS#5781)
3029                  */
3030                 if ( nn && no < o &&
3031                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3032                          !old->a_desc->ad_type->sat_equality ))
3033                         no = o;
3034
3035                 i = j;
3036                 /* all old values were deleted, just use the replace op */
3037                 if ( no == o ) {
3038                         i = j-1;
3039                 } else if ( no ) {
3040                 /* delete some values */
3041                         mod = ch_malloc( sizeof( Modifications ) );
3042                         mod->sml_op = LDAP_MOD_DELETE;
3043                         mod->sml_flags = 0;
3044                         mod->sml_desc = old->a_desc;
3045                         mod->sml_type = mod->sml_desc->ad_cname;
3046                         mod->sml_numvals = no;
3047                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3048                         if ( old->a_vals != old->a_nvals ) {
3049                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3050                         } else {
3051                                 mod->sml_nvalues = NULL;
3052                         }
3053                         j = 0;
3054                         for ( i = 0; i < o; i++ ) {
3055                                 if ( !dels[i] ) continue;
3056                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3057                                 if ( mod->sml_nvalues ) {
3058                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3059                                 }
3060                                 j++;
3061                         }
3062                         BER_BVZERO( &mod->sml_values[j] );
3063                         if ( mod->sml_nvalues ) {
3064                                 BER_BVZERO( &mod->sml_nvalues[j] );
3065                         }
3066                         *modtail = mod;
3067                         modtail = &mod->sml_next;
3068                         i = j;
3069                 }
3070                 op->o_tmpfree( dels, op->o_tmpmemctx );
3071                 /* some values were added */
3072                 if ( nn && no < o ) {
3073                         mod = ch_malloc( sizeof( Modifications ) );
3074                         mod->sml_op = LDAP_MOD_ADD;
3075                         mod->sml_flags = 0;
3076                         mod->sml_desc = old->a_desc;
3077                         mod->sml_type = mod->sml_desc->ad_cname;
3078                         mod->sml_numvals = nn;
3079                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3080                         if ( old->a_vals != old->a_nvals ) {
3081                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3082                         } else {
3083                                 mod->sml_nvalues = NULL;
3084                         }
3085                         j = 0;
3086                         for ( i = 0; i < n; i++ ) {
3087                                 if ( !adds[i] ) continue;
3088                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3089                                 if ( mod->sml_nvalues ) {
3090                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3091                                 }
3092                                 j++;
3093                         }
3094                         BER_BVZERO( &mod->sml_values[j] );
3095                         if ( mod->sml_nvalues ) {
3096                                 BER_BVZERO( &mod->sml_nvalues[j] );
3097                         }
3098                         *modtail = mod;
3099                         modtail = &mod->sml_next;
3100                         i = j;
3101                 }
3102                 op->o_tmpfree( adds, op->o_tmpmemctx );
3103         } else {
3104                 /* new attr, just use the new mod */
3105                 i = 0;
3106                 j = 1;
3107         }
3108         /* advance to next element */
3109         mod = **mcur;
3110         if ( mod ) {
3111                 if ( i != j ) {
3112                         **mcur = mod->sml_next;
3113                         *modtail = mod;
3114                         modtail = &mod->sml_next;
3115                 } else {
3116                         *mcur = &mod->sml_next;
3117                 }
3118         }
3119         *mret = modtail;
3120 }
3121
3122 static int
3123 dn_callback(
3124         Operation*      op,
3125         SlapReply*      rs )
3126 {
3127         dninfo *dni = op->o_callback->sc_private;
3128
3129         if ( rs->sr_type == REP_SEARCH ) {
3130                 if ( !BER_BVISNULL( &dni->dn ) ) {
3131                         Debug( LDAP_DEBUG_ANY,
3132                                 "dn_callback : consistency error - "
3133                                 "entryUUID is not unique\n", 0, 0, 0 );
3134                 } else {
3135                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3136                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3137                         /* If there is a new entry, see if it differs from the old.
3138                          * We compare the non-normalized values so that cosmetic changes
3139                          * in the provider are always propagated.
3140                          */
3141                         if ( dni->new_entry ) {
3142                                 Modifications **modtail, **ml;
3143                                 Attribute *old, *new;
3144                                 struct berval old_rdn, new_rdn;
3145                                 struct berval old_p, new_p;
3146                                 int is_ctx, new_sup = 0;
3147
3148                                 /* Make sure new entry is actually newer than old entry */
3149                                 old = attr_find( rs->sr_entry->e_attrs,
3150                                         slap_schema.si_ad_entryCSN );
3151                                 new = attr_find( dni->new_entry->e_attrs,
3152                                         slap_schema.si_ad_entryCSN );
3153                                 if ( new && old ) {
3154                                         int rc;
3155                                         ber_len_t len = old->a_vals[0].bv_len;
3156                                         if ( len > new->a_vals[0].bv_len )
3157                                                 len = new->a_vals[0].bv_len;
3158                                         rc = memcmp( old->a_vals[0].bv_val,
3159                                                 new->a_vals[0].bv_val, len );
3160                                         if ( rc > 0 ) {
3161                                                 Debug( LDAP_DEBUG_SYNC,
3162                                                         "dn_callback : new entry is older than ours "
3163                                                         "%s ours %s, new %s\n",
3164                                                         rs->sr_entry->e_name.bv_val,
3165                                                         old->a_vals[0].bv_val,
3166                                                         new->a_vals[0].bv_val );
3167                                                 return LDAP_SUCCESS;
3168                                         } else if ( rc == 0 ) {
3169                                                 Debug( LDAP_DEBUG_SYNC,
3170                                                         "dn_callback : entries have identical CSN "
3171                                                         "%s %s\n",
3172                                                         rs->sr_entry->e_name.bv_val,
3173                                                         old->a_vals[0].bv_val, 0 );
3174                                                 return LDAP_SUCCESS;
3175                                         }
3176                                 }
3177
3178                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3179                                         &op->o_bd->be_nsuffix[0] );
3180
3181                                 /* Did the DN change?
3182                                  * case changes in the parent are ignored,
3183                                  * we only want to know if the RDN was
3184                                  * actually changed.
3185                                  */
3186                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3187                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3188                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3189                                 dnParent( &dni->new_entry->e_nname, &new_p );
3190
3191                                 new_sup = !dn_match( &old_p, &new_p );
3192                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3193                                 {
3194                                         struct berval oldRDN, oldVal;
3195                                         AttributeDescription *ad = NULL;
3196                                         int oldpos, newpos;
3197                                         Attribute *a;
3198
3199                                         dni->renamed = 1;
3200                                         if ( new_sup )
3201                                                 dni->nnewSup = new_p;
3202
3203                                         /* See if the oldRDN was deleted */
3204                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3205                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3206                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3207                                                 oldRDN.bv_val );
3208                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3209                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3210                                         dni->oldDesc = ad;
3211                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3212                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3213                                         dni->oldNattr = a;
3214                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3215                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3216                                         if ( !a || oldpos != newpos || attr_valfind( a,
3217                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3218                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3219                                                 SLAP_MR_VALUE_OF_SYNTAX,
3220                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3221                                         {
3222                                                 dni->delOldRDN = 1;
3223                                         }
3224                                         /* Get the newRDN's desc */
3225                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3226                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3227                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3228                                         ad = NULL;
3229                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3230                                         dni->newDesc = ad;
3231
3232                                         /* A ModDN has happened, but in Refresh mode other
3233                                          * changes may have occurred before we picked it up.
3234                                          * So fallthru to regular Modify processing.
3235                                          */
3236                                 }
3237
3238                                 modtail = &dni->mods;
3239                                 ml = dni->modlist;
3240
3241                                 /* We assume that attributes are saved in the same order
3242                                  * in the remote and local databases. So if we walk through
3243                                  * the attributeDescriptions one by one they should match in
3244                                  * lock step. If not, look for an add or delete.
3245                                  */
3246                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3247                                                 old && new; )
3248                                 {
3249                                         /* If we've seen this before, use its mod now */
3250                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3251                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3252                                                 new = new->a_next;
3253                                                 continue;
3254                                         }
3255                                         /* Skip contextCSN */
3256                                         if ( is_ctx && old->a_desc ==
3257                                                 slap_schema.si_ad_contextCSN ) {
3258                                                 old = old->a_next;
3259                                                 continue;
3260                                         }
3261
3262                                         if ( old->a_desc != new->a_desc ) {
3263                                                 Modifications *mod;
3264                                                 Attribute *tmp;
3265
3266                                                 /* If it's just been re-added later,
3267                                                  * remember that we've seen it.
3268                                                  */
3269                                                 tmp = attr_find( new, old->a_desc );
3270                                                 if ( tmp ) {
3271                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3272                                                 } else {
3273                                                         /* If it's a new attribute, pull it in.
3274                                                          */
3275                                                         tmp = attr_find( old, new->a_desc );
3276                                                         if ( !tmp ) {
3277                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3278                                                                 new = new->a_next;
3279                                                                 continue;
3280                                                         }
3281                                                         /* Delete old attr */
3282                                                         mod = ch_malloc( sizeof( Modifications ) );
3283                                                         mod->sml_op = LDAP_MOD_DELETE;
3284                                                         mod->sml_flags = 0;
3285                                                         mod->sml_desc = old->a_desc;
3286                                                         mod->sml_type = mod->sml_desc->ad_cname;
3287                                                         mod->sml_numvals = 0;
3288                                                         mod->sml_values = NULL;
3289                                                         mod->sml_nvalues = NULL;
3290                                                         *modtail = mod;
3291                                                         modtail = &mod->sml_next;
3292                                                 }
3293                                                 old = old->a_next;
3294                                                 continue;
3295                                         }
3296                                         /* kludge - always update modifiersName so that it
3297                                          * stays co-located with the other mod opattrs. But only
3298                                          * if we know there are other valid mods.
3299                                          */
3300                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3301                                                 dni->mods )
3302                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3303                                         else
3304                                                 attr_cmp( op, old, new, &modtail, &ml );
3305                                         new = new->a_next;
3306                                         old = old->a_next;
3307                                 }
3308                                 *modtail = *ml;
3309                                 *ml = NULL;
3310                         }
3311                 }
3312         } else if ( rs->sr_type == REP_RESULT ) {
3313                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3314                         Debug( LDAP_DEBUG_ANY,
3315                                 "dn_callback : consistency error - "
3316                                 "entryUUID is not unique\n", 0, 0, 0 );
3317                 }
3318         }
3319
3320         return LDAP_SUCCESS;
3321 }
3322
3323 static int
3324 nonpresent_callback(
3325         Operation*      op,
3326         SlapReply*      rs )
3327 {
3328         syncinfo_t *si = op->o_callback->sc_private;
3329         Attribute *a;
3330         int count = 0;
3331         struct berval* present_uuid = NULL;
3332         struct nonpresent_entry *np_entry;
3333
3334         if ( rs->sr_type == REP_RESULT ) {
3335                 count = avl_free( si->si_presentlist, ch_free );
3336                 si->si_presentlist = NULL;
3337
3338         } else if ( rs->sr_type == REP_SEARCH ) {
3339                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3340                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3341
3342                         if ( a ) {
3343                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3344                                         syncuuid_cmp );
3345                         }
3346
3347                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3348                                 char buf[sizeof("rid=999 non")];
3349
3350                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3351                                         present_uuid ? "" : "non" );
3352
3353                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3354                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3355                         }
3356
3357                         if ( a == NULL ) return 0;
3358                 }
3359
3360                 if ( present_uuid == NULL ) {
3361                         np_entry = (struct nonpresent_entry *)
3362                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3363                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3364                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3365                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3366
3367                 } else {
3368                         avl_delete( &si->si_presentlist,
3369                                 &a->a_nvals[0], syncuuid_cmp );
3370                         ch_free( present_uuid );
3371                 }
3372         }
3373         return LDAP_SUCCESS;
3374 }
3375
3376 static int
3377 null_callback(
3378         Operation*      op,
3379         SlapReply*      rs )
3380 {
3381         if ( rs->sr_err != LDAP_SUCCESS &&
3382                 rs->sr_err != LDAP_REFERRAL &&
3383                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3384                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3385                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3386         {
3387                 Debug( LDAP_DEBUG_ANY,
3388                         "null_callback : error code 0x%x\n",
3389                         rs->sr_err, 0, 0 );
3390         }
3391         return LDAP_SUCCESS;
3392 }
3393
3394 static struct berval *
3395 slap_uuidstr_from_normalized(
3396         struct berval* uuidstr,
3397         struct berval* normalized,
3398         void *ctx )
3399 {
3400 #if 0
3401         struct berval *new;
3402         unsigned char nibble;
3403         int i, d = 0;
3404
3405         if ( normalized == NULL ) return NULL;
3406         if ( normalized->bv_len != 16 ) return NULL;
3407
3408         if ( uuidstr ) {
3409                 new = uuidstr;
3410         } else {
3411                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3412                 if ( new == NULL ) {
3413                         return NULL;
3414                 }
3415         }
3416
3417         new->bv_len = 36;
3418
3419         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3420                 if ( new != uuidstr ) {
3421                         slap_sl_free( new, ctx );
3422                 }
3423                 return NULL;
3424         }
3425
3426         for ( i = 0; i < 16; i++ ) {
3427                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3428                         new->bv_val[(i<<1)+d] = '-';
3429                         d += 1;
3430                 }
3431
3432                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3433                 if ( nibble < 10 ) {
3434                         new->bv_val[(i<<1)+d] = nibble + '0';
3435                 } else {
3436                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3437                 }
3438
3439                 nibble = (normalized->bv_val[i]) & 0xF;
3440                 if ( nibble < 10 ) {
3441                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3442                 } else {
3443                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3444                 }
3445         }
3446
3447         new->bv_val[new->bv_len] = '\0';
3448         return new;
3449 #endif
3450
3451         struct berval   *new;
3452         int             rc = 0;
3453
3454         if ( normalized == NULL ) return NULL;
3455         if ( normalized->bv_len != 16 ) return NULL;
3456
3457         if ( uuidstr ) {
3458                 new = uuidstr;
3459
3460         } else {
3461                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3462                 if ( new == NULL ) {
3463                         return NULL;
3464                 }
3465         }
3466
3467         new->bv_len = 36;
3468
3469         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3470                 rc = 1;
3471                 goto done;
3472         }
3473
3474         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3475                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3476
3477 done:;
3478         if ( rc == -1 ) {
3479                 if ( new != NULL ) {
3480                         if ( new->bv_val != NULL ) {
3481                                 slap_sl_free( new->bv_val, ctx );
3482                         }
3483
3484                         if ( new != uuidstr ) {
3485                                 slap_sl_free( new, ctx );
3486                         }
3487                 }
3488                 new = NULL;
3489
3490         } else {
3491                 new->bv_len = rc;
3492         }
3493
3494         return new;
3495 }
3496
3497 static int
3498 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3499 {
3500         const struct berval *uuid1 = v_uuid1;
3501         const struct berval *uuid2 = v_uuid2;
3502         int rc = uuid1->bv_len - uuid2->bv_len;
3503         if ( rc ) return rc;
3504         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3505 }
3506
3507 void
3508 syncinfo_free( syncinfo_t *sie, int free_all )
3509 {
3510         syncinfo_t *si_next;
3511
3512         if ( free_all && sie->si_cookieState ) {
3513                 ch_free( sie->si_cookieState->cs_sids );
3514                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3515                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3516                 ch_free( sie->si_cookieState );
3517         }
3518         do {
3519                 si_next = sie->si_next;
3520
3521                 if ( sie->si_ld ) {
3522                         if ( sie->si_conn ) {
3523                                 connection_client_stop( sie->si_conn );
3524                                 sie->si_conn = NULL;
3525                         }
3526                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3527                 }
3528
3529                 /* re-fetch it, in case it was already removed */
3530                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3531                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3532                 if ( sie->si_re ) {
3533                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3534                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3535                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3536                 }
3537
3538                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3539                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3540
3541                 bindconf_free( &sie->si_bindconf );
3542
3543                 if ( sie->si_filterstr.bv_val ) {
3544                         ch_free( sie->si_filterstr.bv_val );
3545                 }
3546                 if ( sie->si_logfilterstr.bv_val ) {
3547                         ch_free( sie->si_logfilterstr.bv_val );
3548                 }
3549                 if ( sie->si_base.bv_val ) {
3550                         ch_free( sie->si_base.bv_val );
3551                 }
3552                 if ( sie->si_logbase.bv_val ) {
3553                         ch_free( sie->si_logbase.bv_val );
3554                 }
3555                 if ( sie->si_attrs ) {
3556                         int i = 0;
3557                         while ( sie->si_attrs[i] != NULL ) {
3558                                 ch_free( sie->si_attrs[i] );
3559                                 i++;
3560                         }
3561                         ch_free( sie->si_attrs );
3562                 }
3563                 if ( sie->si_exattrs ) {
3564                         int i = 0;
3565                         while ( sie->si_exattrs[i] != NULL ) {
3566                                 ch_free( sie->si_exattrs[i] );
3567                                 i++;
3568                         }
3569                         ch_free( sie->si_exattrs );
3570                 }
3571                 if ( sie->si_anlist ) {
3572                         int i = 0;
3573                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3574                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3575                                 i++;
3576                         }
3577                         ch_free( sie->si_anlist );
3578                 }
3579                 if ( sie->si_exanlist ) {
3580                         int i = 0;
3581                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3582                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3583                                 i++;
3584                         }
3585                         ch_free( sie->si_exanlist );
3586                 }
3587                 if ( sie->si_retryinterval ) {
3588                         ch_free( sie->si_retryinterval );
3589                 }
3590                 if ( sie->si_retrynum ) {
3591                         ch_free( sie->si_retrynum );
3592                 }
3593                 if ( sie->si_retrynum_init ) {
3594                         ch_free( sie->si_retrynum_init );
3595                 }
3596                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3597                 if ( sie->si_presentlist ) {
3598                     avl_free( sie->si_presentlist, ch_free );
3599                 }
3600                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3601                         struct nonpresent_entry* npe;
3602                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3603                         LDAP_LIST_REMOVE( npe, npe_link );
3604                         if ( npe->npe_name ) {
3605                                 if ( npe->npe_name->bv_val ) {
3606                                         ch_free( npe->npe_name->bv_val );
3607                                 }
3608                                 ch_free( npe->npe_name );
3609                         }
3610                         if ( npe->npe_nname ) {
3611                                 if ( npe->npe_nname->bv_val ) {
3612                                         ch_free( npe->npe_nname->bv_val );
3613                                 }
3614                                 ch_free( npe->npe_nname );
3615                         }
3616                         ch_free( npe );
3617                 }
3618                 ch_free( sie );
3619                 sie = si_next;
3620         } while ( free_all && si_next );
3621 }
3622
3623
3624
3625 /* NOTE: used & documented in slapd.conf(5) */
3626 #define IDSTR                   "rid"
3627 #define PROVIDERSTR             "provider"
3628 #define SCHEMASTR               "schemachecking"
3629 #define FILTERSTR               "filter"
3630 #define SEARCHBASESTR           "searchbase"
3631 #define SCOPESTR                "scope"
3632 #define ATTRSONLYSTR            "attrsonly"
3633 #define ATTRSSTR                "attrs"
3634 #define TYPESTR                 "type"
3635 #define INTERVALSTR             "interval"
3636 #define RETRYSTR                "retry"
3637 #define SLIMITSTR               "sizelimit"
3638 #define TLIMITSTR               "timelimit"
3639 #define SYNCDATASTR             "syncdata"
3640 #define LOGBASESTR              "logbase"
3641 #define LOGFILTERSTR    "logfilter"
3642
3643 /* FIXME: undocumented */
3644 #define EXATTRSSTR              "exattrs"
3645 #define MANAGEDSAITSTR          "manageDSAit"
3646
3647 /* mandatory */
3648 enum {
3649         GOT_RID                 = 0x00000001U,
3650         GOT_PROVIDER            = 0x00000002U,
3651         GOT_SCHEMACHECKING      = 0x00000004U,
3652         GOT_FILTER              = 0x00000008U,
3653         GOT_SEARCHBASE          = 0x00000010U,
3654         GOT_SCOPE               = 0x00000020U,
3655         GOT_ATTRSONLY           = 0x00000040U,
3656         GOT_ATTRS               = 0x00000080U,
3657         GOT_TYPE                = 0x00000100U,
3658         GOT_INTERVAL            = 0x00000200U,
3659         GOT_RETRY               = 0x00000400U,
3660         GOT_SLIMIT              = 0x00000800U,
3661         GOT_TLIMIT              = 0x00001000U,
3662         GOT_SYNCDATA            = 0x00002000U,
3663         GOT_LOGBASE             = 0x00004000U,
3664         GOT_LOGFILTER           = 0x00008000U,
3665         GOT_EXATTRS             = 0x00010000U,
3666         GOT_MANAGEDSAIT         = 0x00020000U,
3667         GOT_BINDCONF            = 0x00040000U,
3668
3669 /* check */
3670         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3671 };
3672
3673 static struct {
3674         struct berval key;
3675         int val;
3676 } scopes[] = {
3677         { BER_BVC("base"), LDAP_SCOPE_BASE },
3678         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3679         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3680         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3681         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3682         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3683         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3684         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3685         { BER_BVNULL, 0 }
3686 };
3687
3688 static slap_verbmasks datamodes[] = {
3689         { BER_BVC("default"), SYNCDATA_DEFAULT },
3690         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3691         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3692         { BER_BVNULL, 0 }
3693 };
3694
3695 static int
3696 parse_syncrepl_retry(
3697         ConfigArgs      *c,
3698         char            *arg,
3699         syncinfo_t      *si )
3700 {
3701         char **retry_list;
3702         int j, k, n;
3703         int use_default = 0;
3704
3705         char *val = arg + STRLENOF( RETRYSTR "=" );
3706         if ( strcasecmp( val, "undefined" ) == 0 ) {
3707                 val = "3600 +";
3708                 use_default = 1;
3709         }
3710
3711         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3712         retry_list[0] = NULL;
3713
3714         slap_str2clist( &retry_list, val, " ,\t" );
3715
3716         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3717         n = k / 2;
3718         if ( k % 2 ) {
3719                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3720                         "Error: incomplete syncrepl retry list" );
3721                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3722                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3723                         ch_free( retry_list[k] );
3724                 }
3725                 ch_free( retry_list );
3726                 return 1;
3727         }
3728         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3729         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3730         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3731         for ( j = 0; j < n; j++ ) {
3732                 unsigned long   t;
3733                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3734                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3735                                 "Error: invalid retry interval \"%s\" (#%d)",
3736                                 retry_list[j*2], j );
3737                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3738                         /* do some cleanup */
3739                         return 1;
3740                 }
3741                 si->si_retryinterval[j] = (time_t)t;
3742                 if ( *retry_list[j*2+1] == '+' ) {
3743                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3744                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3745                         j++;
3746                         break;
3747                 } else {
3748                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3749                                         || si->si_retrynum_init[j] <= 0 )
3750                         {
3751                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3752                                         "Error: invalid initial retry number \"%s\" (#%d)",
3753                                         retry_list[j*2+1], j );
3754                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3755                                 /* do some cleanup */
3756                                 return 1;
3757                         }
3758                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3759                                         || si->si_retrynum[j] <= 0 )
3760                         {
3761                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3762                                         "Error: invalid retry number \"%s\" (#%d)",
3763                                         retry_list[j*2+1], j );
3764                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3765                                 /* do some cleanup */
3766                                 return 1;
3767                         }
3768                 }
3769         }
3770         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3771         si->si_retrynum[j] = RETRYNUM_TAIL;
3772         si->si_retryinterval[j] = 0;
3773
3774         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3775                 ch_free( retry_list[k] );
3776         }
3777         ch_free( retry_list );
3778         if ( !use_default ) {
3779                 si->si_got |= GOT_RETRY;
3780         }
3781
3782         return 0;
3783 }
3784
3785 static int
3786 parse_syncrepl_line(
3787         ConfigArgs      *c,
3788         syncinfo_t      *si )
3789 {
3790         int     i;
3791         char    *val;
3792
3793         for ( i = 1; i < c->argc; i++ ) {
3794                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3795                                         STRLENOF( IDSTR "=" ) ) )
3796                 {
3797                         int tmp;
3798                         /* '\0' string terminator accounts for '=' */
3799                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3800                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3801                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3802                                         "Error: parse_syncrepl_line: "
3803                                         "unable to parse syncrepl id \"%s\"", val );
3804                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3805                                 return -1;
3806                         }
3807                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3808                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3809                                         "Error: parse_syncrepl_line: "
3810                                         "syncrepl id %d is out of range [0..4095]", tmp );
3811                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3812                                 return -1;
3813                         }
3814                         si->si_rid = tmp;
3815                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3816                         si->si_got |= GOT_RID;
3817                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3818                                         STRLENOF( PROVIDERSTR "=" ) ) )
3819                 {
3820                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3821                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3822                         si->si_got |= GOT_PROVIDER;
3823                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3824                                         STRLENOF( SCHEMASTR "=" ) ) )
3825                 {
3826                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3827                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3828                                 si->si_schemachecking = 1;
3829                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3830                                 si->si_schemachecking = 0;
3831                         } else {
3832                                 si->si_schemachecking = 1;
3833                         }
3834                         si->si_got |= GOT_SCHEMACHECKING;
3835                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3836                                         STRLENOF( FILTERSTR "=" ) ) )
3837                 {
3838                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3839                         if ( si->si_filterstr.bv_val )
3840                                 ch_free( si->si_filterstr.bv_val );
3841                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3842                         si->si_got |= GOT_FILTER;
3843                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3844                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3845                 {
3846                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3847                         if ( si->si_logfilterstr.bv_val )
3848                                 ch_free( si->si_logfilterstr.bv_val );
3849                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3850                         si->si_got |= GOT_LOGFILTER;
3851                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3852                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3853                 {
3854                         struct berval   bv;
3855                         int             rc;
3856
3857                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3858                         if ( si->si_base.bv_val ) {
3859                                 ch_free( si->si_base.bv_val );
3860                         }
3861                         ber_str2bv( val, 0, 0, &bv );
3862                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3863                         if ( rc != LDAP_SUCCESS ) {
3864                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3865                                         "Invalid base DN \"%s\": %d (%s)",
3866                                         val, rc, ldap_err2string( rc ) );
3867                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3868                                 return -1;
3869                         }
3870                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3871                                 ch_free( si->si_base.bv_val );
3872                                 BER_BVZERO( &si->si_base );
3873                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3874                                         "Base DN \"%s\" is not within the database naming context",
3875                                         val );
3876                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3877                                 return -1;
3878                         }
3879                         si->si_got |= GOT_SEARCHBASE;
3880                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3881                                         STRLENOF( LOGBASESTR "=" ) ) )
3882                 {
3883                         struct berval   bv;
3884                         int             rc;
3885
3886                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3887                         if ( si->si_logbase.bv_val ) {
3888                                 ch_free( si->si_logbase.bv_val );
3889                         }
3890                         ber_str2bv( val, 0, 0, &bv );
3891                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3892                         if ( rc != LDAP_SUCCESS ) {
3893                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3894                                         "Invalid logbase DN \"%s\": %d (%s)",
3895                                         val, rc, ldap_err2string( rc ) );
3896                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3897                                 return -1;
3898                         }
3899                         si->si_got |= GOT_LOGBASE;
3900                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3901                                         STRLENOF( SCOPESTR "=" ) ) )
3902                 {
3903                         int j;
3904                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3905                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3906                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3907                                         si->si_scope = scopes[j].val;
3908                                         break;
3909                                 }
3910                         }
3911                         if ( BER_BVISNULL(&scopes[j].key) ) {
3912                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3913                                         "Error: parse_syncrepl_line: "
3914                                         "unknown scope \"%s\"", val);
3915                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3916                                 return -1;
3917                         }
3918                         si->si_got |= GOT_SCOPE;
3919                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3920                                         STRLENOF( ATTRSONLYSTR ) ) )
3921                 {
3922                         si->si_attrsonly = 1;
3923                         si->si_got |= GOT_ATTRSONLY;
3924                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3925                                         STRLENOF( ATTRSSTR "=" ) ) )
3926                 {
3927                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3928                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3929                                 char *attr_fname;
3930                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3931                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3932                                 if ( si->si_anlist == NULL ) {
3933                                         ch_free( attr_fname );
3934                                         return -1;
3935                                 }
3936                                 si->si_anfile = attr_fname;
3937                         } else {
3938                                 char *str, *s, *next;
3939                                 const char *delimstr = " ,\t";
3940                                 str = ch_strdup( val );
3941                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3942                                                 s != NULL;
3943                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3944                                 {
3945                                         if ( strlen(s) == 1 && *s == '*' ) {
3946                                                 si->si_allattrs = 1;
3947                                                 val[ s - str ] = delimstr[0];
3948                                         }
3949                                         if ( strlen(s) == 1 && *s == '+' ) {
3950                                                 si->si_allopattrs = 1;
3951                                                 val [ s - str ] = delimstr[0];
3952                                         }
3953                                 }
3954                                 ch_free( str );
3955                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3956                                 if ( si->si_anlist == NULL ) {
3957                                         return -1;
3958                                 }
3959                         }
3960                         si->si_got |= GOT_ATTRS;
3961                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3962                                         STRLENOF( EXATTRSSTR "=" ) ) )
3963                 {
3964                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3965                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3966                                 char *attr_fname;
3967                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3968                                 si->si_exanlist = file2anlist(
3969                                         si->si_exanlist, attr_fname, " ,\t" );
3970                                 if ( si->si_exanlist == NULL ) {
3971                                         ch_free( attr_fname );
3972                                         return -1;
3973                                 }
3974                                 ch_free( attr_fname );
3975                         } else {
3976                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3977                                 if ( si->si_exanlist == NULL ) {
3978                                         return -1;
3979                                 }
3980                         }
3981                         si->si_got |= GOT_EXATTRS;
3982                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3983                                         STRLENOF( TYPESTR "=" ) ) )
3984                 {
3985                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3986                         if ( !strncasecmp( val, "refreshOnly",
3987                                                 STRLENOF("refreshOnly") ) )
3988                         {
3989                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3990                         } else if ( !strncasecmp( val, "refreshAndPersist",
3991                                                 STRLENOF("refreshAndPersist") ) )
3992                         {
3993                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3994                                 si->si_interval = 60;
3995                         } else {
3996                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3997                                         "Error: parse_syncrepl_line: "
3998                                         "unknown sync type \"%s\"", val);
3999                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4000                                 return -1;
4001                         }
4002                         si->si_got |= GOT_TYPE;
4003                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4004                                         STRLENOF( INTERVALSTR "=" ) ) )
4005                 {
4006                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4007                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4008                                 si->si_interval = 0;
4009                         } else if ( strchr( val, ':' ) != NULL ) {
4010                                 char *next, *ptr = val;
4011                                 int dd, hh, mm, ss;
4012
4013                                 dd = strtol( ptr, &next, 10 );
4014                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4015                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4016                                                 "Error: parse_syncrepl_line: "
4017                                                 "invalid interval \"%s\", unable to parse days", val );
4018                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4019                                         return -1;
4020                                 }
4021                                 ptr = next + 1;
4022                                 hh = strtol( ptr, &next, 10 );
4023                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4024                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4025                                                 "Error: parse_syncrepl_line: "
4026                                                 "invalid interval \"%s\", unable to parse hours", val );
4027                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4028                                         return -1;
4029                                 }
4030                                 ptr = next + 1;
4031                                 mm = strtol( ptr, &next, 10 );
4032                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4033                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4034                                                 "Error: parse_syncrepl_line: "
4035                                                 "invalid interval \"%s\", unable to parse minutes", val );
4036                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4037                                         return -1;
4038                                 }
4039                                 ptr = next + 1;
4040                                 ss = strtol( ptr, &next, 10 );
4041                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4042                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4043                                                 "Error: parse_syncrepl_line: "
4044                                                 "invalid interval \"%s\", unable to parse seconds", val );
4045                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4046                                         return -1;
4047                                 }
4048                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4049                         } else {
4050                                 unsigned long   t;
4051
4052                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4053                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4054                                                 "Error: parse_syncrepl_line: "
4055                                                 "invalid interval \"%s\"", val );
4056                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4057                                         return -1;
4058                                 }
4059                                 si->si_interval = (time_t)t;
4060                         }
4061                         if ( si->si_interval < 0 ) {
4062                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4063                                         "Error: parse_syncrepl_line: "
4064                                         "invalid interval \"%ld\"",
4065                                         (long) si->si_interval);
4066                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4067                                 return -1;
4068                         }
4069                         si->si_got |= GOT_INTERVAL;
4070                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4071                                         STRLENOF( RETRYSTR "=" ) ) )
4072                 {
4073                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4074                                 return 1;
4075                         }
4076                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4077                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4078                 {
4079                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4080                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4081                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4082                         {
4083                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4084                                         "invalid manageDSAit value \"%s\".\n",
4085                                         val );
4086                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4087                                 return 1;
4088                         }
4089                         si->si_got |= GOT_MANAGEDSAIT;
4090                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4091                                         STRLENOF( SLIMITSTR "=") ) )
4092                 {
4093                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4094                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4095                                 si->si_slimit = 0;
4096
4097                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4098                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4099                                         "invalid size limit value \"%s\".\n",
4100                                         val );
4101                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4102                                 return 1;
4103                         }
4104                         si->si_got |= GOT_SLIMIT;
4105                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4106                                         STRLENOF( TLIMITSTR "=" ) ) )
4107                 {
4108                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4109                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4110                                 si->si_tlimit = 0;
4111
4112                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4113                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4114                                         "invalid time limit value \"%s\".\n",
4115                                         val );
4116                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4117                                 return 1;
4118                         }
4119                         si->si_got |= GOT_TLIMIT;
4120                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4121                                         STRLENOF( SYNCDATASTR "=" ) ) )
4122                 {
4123                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4124                         si->si_syncdata = verb_to_mask( val, datamodes );
4125                         si->si_got |= GOT_SYNCDATA;
4126                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4127                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4128                                 "Error: parse_syncrepl_line: "
4129                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4130                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4131                         return -1;
4132                 }
4133                 si->si_got |= GOT_BINDCONF;
4134         }
4135
4136         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4137                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4138                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4139                         si->si_got & GOT_RID ? "" : " "IDSTR,
4140                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4141                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4142                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4143                 return -1;
4144         }
4145
4146         if ( !( si->si_got & GOT_RETRY ) ) {
4147                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4148                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4149                 if ( si->si_retryinterval == NULL ) {
4150                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4151                                 return 1;
4152                         }
4153                 }
4154         }
4155
4156         return 0;
4157 }
4158
4159 static int
4160 add_syncrepl(
4161         ConfigArgs *c )
4162 {
4163         syncinfo_t *si;
4164         int     rc = 0;
4165
4166         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4167                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4168                         "operations required for syncrepl", c->be->be_type );
4169                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4170                 return 1;
4171         }
4172         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4173                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4174                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4175                 return 1;
4176         }
4177         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4178
4179         if ( si == NULL ) {
4180                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4181                 return 1;
4182         }
4183
4184         si->si_bindconf.sb_tls = SB_TLS_OFF;
4185         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4186         si->si_schemachecking = 0;
4187         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4188                 &si->si_filterstr );
4189         si->si_base.bv_val = NULL;
4190         si->si_scope = LDAP_SCOPE_SUBTREE;
4191         si->si_attrsonly = 0;
4192         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4193         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4194         si->si_attrs = NULL;
4195         si->si_allattrs = 0;
4196         si->si_allopattrs = 0;
4197         si->si_exattrs = NULL;
4198         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4199         si->si_interval = 86400;
4200         si->si_retryinterval = NULL;
4201         si->si_retrynum_init = NULL;
4202         si->si_retrynum = NULL;
4203         si->si_manageDSAit = 0;
4204         si->si_tlimit = 0;
4205         si->si_slimit = 0;
4206
4207         si->si_presentlist = NULL;
4208         LDAP_LIST_INIT( &si->si_nonpresentlist );
4209         ldap_pvt_thread_mutex_init( &si->si_mutex );
4210
4211         rc = parse_syncrepl_line( c, si );
4212
4213         if ( rc == 0 ) {
4214                 /* Must be LDAPv3 because we need controls */
4215                 switch ( si->si_bindconf.sb_version ) {
4216                 case 0:
4217                         /* not explicitly set */
4218                         si->si_bindconf.sb_version = LDAP_VERSION3;
4219                         break;
4220                 case 3:
4221                         /* explicitly set */
4222                         break;
4223                 default:
4224                         Debug( LDAP_DEBUG_ANY,
4225                                 "version %d incompatible with syncrepl\n",
4226                                 si->si_bindconf.sb_version, 0, 0 );
4227                         syncinfo_free( si, 0 );
4228                         return 1;
4229                 }
4230
4231                 si->si_be = c->be;
4232                 if ( slapMode & SLAP_SERVER_MODE ) {
4233                         Listener **l = slapd_get_listeners();
4234                         int isMe = 0;
4235
4236                         /* check if URL points to current server. If so, ignore
4237                          * this configuration. We require an exact match. Just
4238                          * in case they really want to do this, they can vary
4239                          * the case of the URL to allow it.
4240                          */
4241                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4242                                 int i;
4243                                 for ( i=0; l[i]; i++ ) {
4244                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4245                                                 isMe = 1;
4246                                                 break;
4247                                         }
4248                                 }
4249                         }
4250
4251                         if ( !isMe ) {
4252                                 init_syncrepl( si );
4253                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4254                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4255                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4256                                         si->si_ridtxt );
4257                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4258                                 if ( si->si_re )
4259                                         rc = config_sync_shadow( c ) ? -1 : 0;
4260                                 else
4261                                         rc = -1;
4262                         }
4263                 } else {
4264                         /* mirrormode still needs to see this flag in tool mode */
4265                         rc = config_sync_shadow( c ) ? -1 : 0;
4266                 }
4267         }
4268
4269 #ifdef HAVE_TLS
4270         /* Use main slapd defaults */
4271         bindconf_tls_defaults( &si->si_bindconf );
4272 #endif
4273         if ( rc < 0 ) {
4274                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4275                 syncinfo_free( si, 0 );
4276                 return 1;
4277         } else {
4278                 Debug( LDAP_DEBUG_CONFIG,
4279                         "Config: ** successfully added syncrepl \"%s\"\n",
4280                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4281                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4282                 if ( c->be->be_syncinfo ) {
4283                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4284                 } else {
4285                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4286                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4287                 }
4288                 si->si_next = c->be->be_syncinfo;
4289                 c->be->be_syncinfo = si;
4290                 return 0;
4291         }
4292 }
4293
4294 static void
4295 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4296 {
4297         struct berval bc, uri;
4298         char buf[BUFSIZ*2], *ptr;
4299         ber_len_t len;
4300         int i;
4301 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4302
4303         BER_BVZERO( bv );
4304
4305         /* temporarily inhibit bindconf from printing URI */
4306         uri = si->si_bindconf.sb_uri;
4307         BER_BVZERO( &si->si_bindconf.sb_uri );
4308         si->si_bindconf.sb_version = 0;
4309         bindconf_unparse( &si->si_bindconf, &bc );
4310         si->si_bindconf.sb_uri = uri;
4311         si->si_bindconf.sb_version = LDAP_VERSION3;
4312
4313         ptr = buf;
4314         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4315         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4316                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4317         if ( len >= sizeof( buf ) ) return;
4318         ptr += len;
4319         if ( !BER_BVISNULL( &bc ) ) {
4320                 if ( WHATSLEFT <= bc.bv_len ) {
4321                         free( bc.bv_val );
4322                         return;
4323                 }
4324                 ptr = lutil_strcopy( ptr, bc.bv_val );
4325                 free( bc.bv_val );
4326         }
4327         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4328                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4329                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4330                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4331                 *ptr++ = '"';
4332         }
4333         if ( !BER_BVISNULL( &si->si_base ) ) {
4334                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4335                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4336                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4337                 *ptr++ = '"';
4338         }
4339         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4340                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4341                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4342                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4343                 *ptr++ = '"';
4344         }
4345         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4346                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4347                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4348                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4349                 *ptr++ = '"';
4350         }
4351         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4352                 if ( si->si_scope == scopes[i].val ) {
4353                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4354                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4355                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4356                         break;
4357                 }
4358         }
4359         if ( si->si_attrsonly ) {
4360                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4361                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4362         }
4363         if ( si->si_anfile ) {
4364                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4365                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4366                 ptr = lutil_strcopy( ptr, si->si_anfile );
4367                 *ptr++ = '"';
4368         } else if ( si->si_allattrs || si->si_allopattrs ||
4369                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4370         {
4371                 char *old;
4372
4373                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4374                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4375                 old = ptr;
4376                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4377                 if ( ptr == NULL ) return;
4378                 if ( si->si_allattrs ) {
4379                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4380                         if ( old != ptr ) *ptr++ = ',';
4381                         *ptr++ = '*';
4382                 }
4383                 if ( si->si_allopattrs ) {
4384                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4385                         if ( old != ptr ) *ptr++ = ',';
4386                         *ptr++ = '+';
4387                 }
4388                 *ptr++ = '"';
4389         }
4390         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4391                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4392                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4393                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4394                 if ( ptr == NULL ) return;
4395         }
4396         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4397         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4398         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4399
4400         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4401         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4402         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4403                 "refreshAndPersist" : "refreshOnly" );
4404
4405         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4406                 int dd, hh, mm, ss;
4407
4408                 dd = si->si_interval;
4409                 ss = dd % 60;
4410                 dd /= 60;
4411                 mm = dd % 60;
4412                 dd /= 60;
4413                 hh = dd % 24;
4414                 dd /= 24;
4415                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4416                         INTERVALSTR, dd, hh, mm, ss );
4417                 if ( len >= WHATSLEFT ) return;
4418                 ptr += len;
4419         }
4420
4421         if ( si->si_got & GOT_RETRY ) {
4422                 const char *space = "";
4423                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4424                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4425                 for (i=0; si->si_retryinterval[i]; i++) {
4426                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4427                                 (long) si->si_retryinterval[i] );
4428                         space = " ";
4429                         if ( WHATSLEFT - 1 <= len ) return;
4430                         ptr += len;
4431                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4432                                 *ptr++ = '+';
4433                         else {
4434                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4435                                 if ( WHATSLEFT <= len ) return;
4436                                 ptr += len;
4437                         }
4438                 }
4439                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4440                 *ptr++ = '"';
4441         } else {
4442                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4443         }
4444
4445         if ( si->si_slimit ) {
4446                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4447                 if ( WHATSLEFT <= len ) return;
4448                 ptr += len;
4449         }
4450
4451         if ( si->si_tlimit ) {
4452                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4453                 if ( WHATSLEFT <= len ) return;
4454                 ptr += len;
4455         }
4456
4457         if ( si->si_syncdata ) {
4458                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4459                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4460                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4461                         ptr = lutil_strcopy( ptr, bc.bv_val );
4462                 }
4463         }
4464         bc.bv_len = ptr - buf;
4465         bc.bv_val = buf;
4466         ber_dupbv( bv, &bc );
4467 }
4468
4469 int
4470 syncrepl_config( ConfigArgs *c )
4471 {
4472         if (c->op == SLAP_CONFIG_EMIT) {
4473                 if ( c->be->be_syncinfo ) {
4474                         struct berval bv;
4475                         syncinfo_t *si;
4476
4477                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4478                                 syncrepl_unparse( si, &bv );
4479                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4480                         }
4481                         return 0;
4482                 }
4483                 return 1;
4484         } else if ( c->op == LDAP_MOD_DELETE ) {
4485                 cookie_state *cs = NULL;
4486                 if ( c->be->be_syncinfo ) {
4487                         syncinfo_t *si, **sip;
4488                         int i;
4489
4490                         cs = c->be->be_syncinfo->si_cookieState;
4491                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4492                                 si = *sip;
4493                                 if ( c->valx == -1 || i == c->valx ) {
4494                                         int isrunning = 0;
4495                                         *sip = si->si_next;
4496                                         /* If the task is currently active, we have to leave
4497                                          * it running. It will exit on its own. This will only
4498                                          * happen when running on the cn=config DB.
4499                                          */
4500                                         if ( si->si_re ) {
4501                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4502                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4503                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4504                                         }
4505                                         if ( si->si_re && isrunning ) {
4506                                                 si->si_ctype = 0;
4507                                         } else {
4508                                                 syncinfo_free( si, 0 );
4509                                         }
4510                                         if ( i == c->valx )
4511                                                 break;
4512                                 } else {
4513                                         sip = &si->si_next;
4514                                 }
4515                         }
4516                 }
4517                 if ( !c->be->be_syncinfo ) {
4518                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4519                         if ( cs ) {
4520                                 ber_bvarray_free( cs->cs_vals );
4521                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4522                                 ch_free( cs );
4523                         }
4524                 }
4525                 return 0;
4526         }
4527         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4528                 Debug(LDAP_DEBUG_ANY, "%s: "
4529                         "syncrepl: database already shadowed.\n",
4530                         c->log, 0, 0);
4531                 return(1);
4532         } else {
4533                 return add_syncrepl( c );
4534         }
4535 }