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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2009 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003-2008 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[3], *ctrls[4];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 421         BER_BVZERO( &c[1].ldctl_value );
 422         c[1].ldctl_iscritical = 1;
 423         ctrls[1] = &c[1];
 424
 425         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 426                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 427                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 428                 c[2].ldctl_iscritical = 1;
 429                 ctrls[2] = &c[2];
 430                 ctrls[3] = NULL;
 431         } else {
 432                 ctrls[2] = NULL;
 433         }
 434
 435         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 436                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 437         ber_free_buf( ber );
 438         return rc;
 439 }
 440
 441 static int
 442 check_syncprov(
 443         Operation *op,
 444         syncinfo_t *si )
 445 {
 446         AttributeName at[2];
 447         Attribute a = {0};
 448         Entry e = {0};
 449         SlapReply rs = {0};
 450         int i, j, changed = 0;
 451
 452         /* Look for contextCSN from syncprov overlay. If
 453          * there's no overlay, this will be a no-op. That means
 454          * this is a pure consumer, so local changes will not be
 455          * allowed, and all changes will already be reflected in
 456          * the cookieState.
 457          */
 458         a.a_desc = slap_schema.si_ad_contextCSN;
 459         e.e_attrs = &a;
 460         e.e_name = op->o_bd->be_suffix[0];
 461         e.e_nname = op->o_bd->be_nsuffix[0];
 462         at[0].an_name = a.a_desc->ad_cname;
 463         at[0].an_desc = a.a_desc;
 464         BER_BVZERO( &at[1].an_name );
 465         rs.sr_entry = &e;
 466         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 467         rs.sr_attrs = at;
 468         op->o_req_dn = e.e_name;
 469         op->o_req_ndn = e.e_nname;
 470
 471         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 472         i = backend_operational( op, &rs );
 473         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 474                 int num = a.a_numvals;
 475                 /* check for differences */
 476                 if ( num != si->si_cookieState->cs_num ) {
 477                         changed = 1;
 478                 } else {
 479                         for ( i=0; i<num; i++ ) {
 480                                 if ( ber_bvcmp( &a.a_nvals[i],
 481                                         &si->si_cookieState->cs_vals[i] )) {
 482                                         changed = 1;
 483                                         break;
 484                                 }
 485                         }
 486                 }
 487                 if ( changed ) {
 488                         ber_bvarray_free( si->si_cookieState->cs_vals );
 489                         ch_free( si->si_cookieState->cs_sids );
 490                         si->si_cookieState->cs_num = num;
 491                         si->si_cookieState->cs_vals = a.a_nvals;
 492                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 493                                 num, NULL );
 494                         si->si_cookieState->cs_age++;
 495                 } else {
 496                         ber_bvarray_free( a.a_nvals );
 497                 }
 498                 ber_bvarray_free( a.a_vals );
 499         }
 500         /* See if the cookieState has changed due to anything outside
 501          * this particular consumer. That includes other consumers in
 502          * the same context, or local changes detected above.
 503          */
 504         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 505                 si->si_cookieState->cs_age ) {
 506                 if ( !si->si_syncCookie.numcsns ) {
 507                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 508                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 509                                 si->si_cookieState->cs_vals, NULL );
 510                         changed = 1;
 511                 } else {
 512                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 513                                 /* bogus, just dup everything */
 514                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 515                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 516                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 517                                                 si->si_cookieState->cs_vals, NULL );
 518                                         changed = 1;
 519                                         break;
 520                                 }
 521                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 522                                         if ( si->si_syncCookie.sids[i] !=
 523                                                 si->si_cookieState->cs_sids[j] )
 524                                                 continue;
 525                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 526                                                 &si->si_cookieState->cs_vals[j] ))
 527                                                 break;
 528                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 529                                                 &si->si_cookieState->cs_vals[j] );
 530                                         changed = 1;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535         }
 536         if ( changed ) {
 537                 si->si_cookieAge = si->si_cookieState->cs_age;
 538                 ch_free( si->si_syncCookie.octet_str.bv_val );
 539                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 540                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 541                         si->si_syncCookie.sid );
 542         }
 543         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 544         return changed;
 545 }
 546
 547 static int
 548 do_syncrep1(
 549         Operation *op,
 550         syncinfo_t *si )
 551 {
 552         int     rc;
 553         int cmdline_cookie_found = 0;
 554
 555         struct sync_cookie      *sc = NULL;
 556 #ifdef HAVE_TLS
 557         void    *ssl;
 558 #endif
 559
 560         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 561         if ( rc != LDAP_SUCCESS ) {
 562                 goto done;
 563         }
 564         op->o_protocol = LDAP_VERSION3;
 565
 566         /* Set SSF to strongest of TLS, SASL SSFs */
 567         op->o_sasl_ssf = 0;
 568         op->o_tls_ssf = 0;
 569         op->o_transport_ssf = 0;
 570 #ifdef HAVE_TLS
 571         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 572                 == LDAP_SUCCESS && ssl != NULL )
 573         {
 574                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 575         }
 576 #endif /* HAVE_TLS */
 577         {
 578                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 579                                                   to use sasl_ssf_t but currently uses ber_len_t */
 580                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 581                 op->o_sasl_ssf = ssf;
 582         }
 583         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 584                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 585
 586         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 587
 588         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 589         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 590
 591         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 592
 593         si->si_syncCookie.rid = si->si_rid;
 594
 595         /* whenever there are multiple data sources possible, advertise sid */
 596         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 597                 slap_serverID : -1;
 598
 599         /* We've just started up, or the remote server hasn't sent us
 600          * any meaningful state.
 601          */
 602         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 603                 int i;
 604
 605                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 606                         if ( si->si_rid == sc->rid ) {
 607                                 cmdline_cookie_found = 1;
 608                                 break;
 609                         }
 610                 }
 611
 612                 if ( cmdline_cookie_found ) {
 613                         /* cookie is supplied in the command line */
 614
 615                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 616
 617                         /* ctxcsn wasn't parsed yet, do it now */
 618                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 619                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 620                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 621                         slap_sync_cookie_free( sc, 1 );
 622                 } else {
 623                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 624                         if ( !si->si_cookieState->cs_num ) {
 625                                 /* get contextCSN shadow replica from database */
 626                                 BerVarray csn = NULL;
 627                                 void *ctx = op->o_tmpmemctx;
 628
 629                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 630                                 op->o_req_dn = op->o_req_ndn;
 631
 632                                 /* try to read stored contextCSN */
 633                                 op->o_tmpmemctx = NULL;
 634                                 backend_attribute( op, NULL, &op->o_req_ndn,
 635                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 636                                 op->o_tmpmemctx = ctx;
 637                                 if ( csn ) {
 638                                         si->si_cookieState->cs_vals = csn;
 639                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 640                                         si->si_cookieState->cs_num = i;
 641                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 642                                 }
 643                         }
 644                         if ( si->si_cookieState->cs_num ) {
 645                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 646                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 647                                         si->si_cookieState->cs_vals, NULL )) {
 648                                         rc = LDAP_NO_MEMORY;
 649                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 650                                         goto done;
 651                                 }
 652                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 653                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 654                                         sizeof(int) );
 655                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 656                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 657                         }
 658                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 659                 }
 660
 661                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 662                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 663                         si->si_syncCookie.sid );
 664         } else {
 665                 /* Look for contextCSN from syncprov overlay. */
 666                 check_syncprov( op, si );
 667         }
 668
 669         si->si_refreshDone = 0;
 670
 671         rc = ldap_sync_search( si, op->o_tmpmemctx );
 672
 673         if( rc != LDAP_SUCCESS ) {
 674                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 675                         "ldap_search_ext: %s (%d)\n",
 676                         si->si_ridtxt, ldap_err2string( rc ), rc );
 677         }
 678
 679 done:
 680         if ( rc ) {
 681                 if ( si->si_ld ) {
 682                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 683                         si->si_ld = NULL;
 684                 }
 685         }
 686
 687         return rc;
 688 }
 689
 690 static int
 691 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 692 {
 693         int i, j, match = 0;
 694         const char *text;
 695
 696         *which = 0;
 697
 698         if ( sc1->numcsns < sc2->numcsns ) {
 699                 *which = sc1->numcsns;
 700                 return -1;
 701         }
 702
 703         for (j=0; j<sc2->numcsns; j++) {
 704                 for (i=0; i<sc1->numcsns; i++) {
 705                         if ( sc1->sids[i] != sc2->sids[j] )
 706                                 continue;
 707                         value_match( &match, slap_schema.si_ad_entryCSN,
 708                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 709                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 710                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 711                         if ( match < 0 ) {
 712                                 *which = j;
 713                                 return match;
 714                         }
 715                         break;
 716                 }
 717                 if ( i == sc1->numcsns ) {
 718                         /* sc2 has a sid sc1 lacks */
 719                         *which = j;
 720                         return -1;
 721                 }
 722         }
 723         return match;
 724 }
 725
 726 #define SYNC_PAUSED     -3
 727
 728 static int
 729 do_syncrep2(
 730         Operation *op,
 731         syncinfo_t *si )
 732 {
 733         LDAPControl     **rctrls = NULL;
 734
 735         BerElementBuffer berbuf;
 736         BerElement      *ber = (BerElement *)&berbuf;
 737
 738         LDAPMessage     *msg = NULL;
 739
 740         char            *retoid = NULL;
 741         struct berval   *retdata = NULL;
 742
 743         Entry           *entry = NULL;
 744
 745         int             syncstate;
 746         struct berval   syncUUID = BER_BVNULL;
 747         struct sync_cookie      syncCookie = { NULL };
 748         struct sync_cookie      syncCookie_req = { NULL };
 749         struct berval           cookie = BER_BVNULL;
 750
 751         int             rc,
 752                         err = LDAP_SUCCESS;
 753         ber_len_t       len;
 754
 755         struct berval   *psub;
 756         Modifications   *modlist = NULL;
 757
 758         int                             match, m;
 759
 760         struct timeval *tout_p = NULL;
 761         struct timeval tout = { 0, 0 };
 762
 763         int             refreshDeletes = 0;
 764         BerVarray syncUUIDs = NULL;
 765         ber_tag_t si_tag;
 766
 767         if ( slapd_shutdown ) {
 768                 rc = -2;
 769                 goto done;
 770         }
 771
 772         ber_init2( ber, NULL, LBER_USE_DER );
 773         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 774
 775         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 776
 777         psub = &si->si_be->be_nsuffix[0];
 778
 779         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 780
 781         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 782                 tout_p = &tout;
 783         } else {
 784                 tout_p = NULL;
 785         }
 786
 787         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 788                 tout_p, &msg ) ) > 0 )
 789         {
 790                 LDAPControl     *rctrlp = NULL;
 791
 792                 if ( slapd_shutdown ) {
 793                         rc = -2;
 794                         goto done;
 795                 }
 796                 switch( ldap_msgtype( msg ) ) {
 797                 case LDAP_RES_SEARCH_ENTRY:
 798                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 799                         /* we can't work without the control */
 800                         if ( rctrls ) {
 801                                 LDAPControl **next;
 802                                 /* NOTE: make sure we use the right one;
 803                                  * a better approach would be to run thru
 804                                  * the whole list and take care of all */
 805                                 /* NOTE: since we issue the search request,
 806                                  * we should know what controls to expect,
 807                                  * and there should be none apart from the
 808                                  * sync-related control */
 809                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 810                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 811                                 {
 812                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 813                                                 "got search entry with multiple "
 814                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 815                                         ldap_controls_free( rctrls );
 816                                         rc = -1;
 817                                         goto done;
 818                                 }
 819                         }
 820                         if ( rctrlp == NULL ) {
 821                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 822                                         "got search entry without "
 823                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 828                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 829                         /* FIXME: what if syncUUID is NULL or empty?
 830                          * (happens with back-sql...) */
 831                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 832                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 833                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 834                                         si->si_ridtxt,
 835                                         syncrepl_state2str( syncstate ), 0 );
 836                                 ldap_controls_free( rctrls );
 837                                 rc = -1;
 838                                 goto done;
 839                         }
 840                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 841                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 842
 843                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 844                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 845
 846                                 if ( !BER_BVISNULL( &cookie ) ) {
 847                                         ch_free( syncCookie.octet_str.bv_val );
 848                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 849                                 }
 850                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 851                                 {
 852                                         slap_parse_sync_cookie( &syncCookie, NULL );
 853                                         if ( syncCookie.ctxcsn ) {
 854                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 855                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 856                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 857                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 858                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 859                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 860                                                                 ldap_controls_free( rctrls );
 861                                                                 rc = 0;
 862                                                                 goto done;
 863                                                         }
 864                                                 }
 865                                         }
 866                                 }
 867                         }
 868                         rc = 0;
 869                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 870                                 modlist = NULL;
 871                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 872                                         syncCookie.ctxcsn )
 873                                 {
 874                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 875                                 } else switch ( rc ) {
 876                                         case LDAP_ALREADY_EXISTS:
 877                                         case LDAP_NO_SUCH_OBJECT:
 878                                         case LDAP_NO_SUCH_ATTRIBUTE:
 879                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 880                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 881                                                 si->si_logstate = SYNCLOG_FALLBACK;
 882                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 883                                                 break;
 884                                         default:
 885                                                 break;
 886                                 }
 887                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 888                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 889                         {
 890                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 891                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 892                                         syncCookie.ctxcsn )
 893                                 {
 894                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 895                                 }
 896                         }
 897                         ldap_controls_free( rctrls );
 898                         if ( modlist ) {
 899                                 slap_mods_free( modlist, 1 );
 900                         }
 901                         if ( rc )
 902                                 goto done;
 903                         break;
 904
 905                 case LDAP_RES_SEARCH_REFERENCE:
 906                         Debug( LDAP_DEBUG_ANY,
 907                                 "do_syncrep2: %s reference received error\n",
 908                                 si->si_ridtxt, 0, 0 );
 909                         break;
 910
 911                 case LDAP_RES_SEARCH_RESULT:
 912                         Debug( LDAP_DEBUG_SYNC,
 913                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 914                                 si->si_ridtxt, 0, 0 );
 915                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 916                                 &rctrls, 0 );
 917 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 918                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 919                                 /* map old result code to registered code */
 920                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 921                         }
 922 #endif
 923                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 924                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 925                                         si->si_logstate = SYNCLOG_FALLBACK;
 926                                 }
 927                                 rc = err;
 928                                 goto done;
 929                         }
 930                         if ( err ) {
 931                                 Debug( LDAP_DEBUG_ANY,
 932                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 933                                         si->si_ridtxt, err, ldap_err2string( err ) );
 934                         }
 935                         if ( rctrls ) {
 936                                 LDAPControl **next;
 937                                 /* NOTE: make sure we use the right one;
 938                                  * a better approach would be to run thru
 939                                  * the whole list and take care of all */
 940                                 /* NOTE: since we issue the search request,
 941                                  * we should know what controls to expect,
 942                                  * and there should be none apart from the
 943                                  * sync-related control */
 944                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 945                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 946                                 {
 947                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 948                                                 "got search result with multiple "
 949                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 950                                         ldap_controls_free( rctrls );
 951                                         rc = -1;
 952                                         goto done;
 953                                 }
 954                         }
 955                         if ( rctrlp ) {
 956                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 957
 958                                 ber_scanf( ber, "{" /*"}"*/);
 959                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 960                                         ber_scanf( ber, "m", &cookie );
 961
 962                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 963                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 964
 965                                         if ( !BER_BVISNULL( &cookie ) ) {
 966                                                 ch_free( syncCookie.octet_str.bv_val );
 967                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 968                                         }
 969                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 970                                         {
 971                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 972                                         }
 973                                 }
 974                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 975                                 {
 976                                         ber_scanf( ber, "b", &refreshDeletes );
 977                                 }
 978                                 ber_scanf( ber, /*"{"*/ "}" );
 979                         }
 980                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 981                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 982                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 983                         }
 984                         if ( !syncCookie.ctxcsn ) {
 985                                 match = 1;
 986                         } else if ( !syncCookie_req.ctxcsn ) {
 987                                 match = -1;
 988                                 m = 0;
 989                         } else {
 990                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 991                         }
 992                         if ( rctrls ) {
 993                                 ldap_controls_free( rctrls );
 994                         }
 995                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 996                                 /* FIXME : different error behaviors according to
 997                                  *      1) err code : LDAP_BUSY ...
 998                                  *      2) on err policy : stop service, stop sync, retry
 999                                  */
1000                                 if ( refreshDeletes == 0 && match < 0 &&
1001                                         err == LDAP_SUCCESS &&
1002                                         syncCookie_req.numcsns == syncCookie.numcsns )
1003                                 {
1004                                         syncrepl_del_nonpresent( op, si, NULL,
1005                                                 &syncCookie, m );
1006                                 } else {
1007                                         avl_free( si->si_presentlist, ch_free );
1008                                         si->si_presentlist = NULL;
1009                                 }
1010                         }
1011                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1012                         {
1013                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1014                         }
1015                         if ( err == LDAP_SUCCESS
1016                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1017                                 si->si_logstate = SYNCLOG_LOGGING;
1018                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1019                         } else {
1020                                 rc = -2;
1021                         }
1022                         goto done;
1023                         break;
1024
1025                 case LDAP_RES_INTERMEDIATE:
1026                         rc = ldap_parse_intermediate( si->si_ld, msg,
1027                                 &retoid, &retdata, NULL, 0 );
1028                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1029                                 ber_init2( ber, retdata, LBER_USE_DER );
1030
1031                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1032                                 ber_tag_t tag;
1033                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1034                                         Debug( LDAP_DEBUG_SYNC,
1035                                                 "do_syncrep2: %s %s - %s\n",
1036                                                 si->si_ridtxt,
1037                                                 "LDAP_RES_INTERMEDIATE",
1038                                                 "NEW_COOKIE" );
1039                                         ber_scanf( ber, "tm", &tag, &cookie );
1040                                         Debug( LDAP_DEBUG_SYNC,
1041                                                 "do_syncrep2: %s NEW_COOKIE: %s\n",
1042                                                 si->si_ridtxt,
1043                                                 cookie.bv_val, 0);
1044                                         if ( !BER_BVISNULL( &cookie ) ) {
1045                                                 ch_free( syncCookie.octet_str.bv_val );
1046                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1047                                         }
1048                                         if (!BER_BVISNULL( &syncCookie.octet_str ) ) {
1049                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1050                                         }
1051                                         break;
1052                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1053                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1054                                         Debug( LDAP_DEBUG_SYNC,
1055                                                 "do_syncrep2: %s %s - %s\n",
1056                                                 si->si_ridtxt,
1057                                                 "LDAP_RES_INTERMEDIATE",
1058                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1059                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1060                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1061                                                 si->si_refreshDelete = 1;
1062                                         } else {
1063                                                 si->si_refreshPresent = 1;
1064                                         }
1065                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1066                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1067                                         {
1068                                                 ber_scanf( ber, "m", &cookie );
1069
1070                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1071                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1072
1073                                                 if ( !BER_BVISNULL( &cookie ) ) {
1074                                                         ch_free( syncCookie.octet_str.bv_val );
1075                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1076                                                 }
1077                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1078                                                 {
1079                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1080                                                 }
1081                                         }
1082                                         /* Defaults to TRUE */
1083                                         if ( ber_peek_tag( ber, &len ) ==
1084                                                 LDAP_TAG_REFRESHDONE )
1085                                         {
1086                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1087                                         } else
1088                                         {
1089                                                 si->si_refreshDone = 1;
1090                                         }
1091                                         ber_scanf( ber, /*"{"*/ "}" );
1092                                         break;
1093                                 case LDAP_TAG_SYNC_ID_SET:
1094                                         Debug( LDAP_DEBUG_SYNC,
1095                                                 "do_syncrep2: %s %s - %s\n",
1096                                                 si->si_ridtxt,
1097                                                 "LDAP_RES_INTERMEDIATE",
1098                                                 "SYNC_ID_SET" );
1099                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1100                                         if ( ber_peek_tag( ber, &len ) ==
1101                                                 LDAP_TAG_SYNC_COOKIE )
1102                                         {
1103                                                 ber_scanf( ber, "m", &cookie );
1104
1105                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1106                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1107
1108                                                 if ( !BER_BVISNULL( &cookie ) ) {
1109                                                         ch_free( syncCookie.octet_str.bv_val );
1110                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1111                                                 }
1112                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1113                                                 {
1114                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1115                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1116                                                 }
1117                                         }
1118                                         if ( ber_peek_tag( ber, &len ) ==
1119                                                 LDAP_TAG_REFRESHDELETES )
1120                                         {
1121                                                 ber_scanf( ber, "b", &refreshDeletes );
1122                                         }
1123                                         ber_scanf( ber, "[W]", &syncUUIDs );
1124                                         ber_scanf( ber, /*"{"*/ "}" );
1125                                         if ( refreshDeletes ) {
1126                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1127                                                         &syncCookie, m );
1128                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1129                                         } else {
1130                                                 int i;
1131                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1132                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1133                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1134                                                 }
1135                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1136                                         }
1137                                         slap_sync_cookie_free( &syncCookie, 0 );
1138                                         break;
1139                                 default:
1140                                         Debug( LDAP_DEBUG_ANY,
1141                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1142                                                 si->si_ridtxt, (long) si_tag, 0 );
1143                                         ldap_memfree( retoid );
1144                                         ber_bvfree( retdata );
1145                                         continue;
1146                                 }
1147
1148                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1149                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1150                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1151                                 }
1152                                 if ( !syncCookie.ctxcsn ) {
1153                                         match = 1;
1154                                 } else if ( !syncCookie_req.ctxcsn ) {
1155                                         match = -1;
1156                                         m = 0;
1157                                 } else {
1158                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1159                                 }
1160
1161                                 if ( match < 0 ) {
1162                                         if ( si->si_refreshPresent == 1 &&
1163                                                 si_tag != LDAP_TAG_SYNC_NEW_COOKIE &&
1164                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1165                                                 syncrepl_del_nonpresent( op, si, NULL,
1166                                                         &syncCookie, m );
1167                                         }
1168
1169                                         if ( syncCookie.ctxcsn )
1170                                         {
1171                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1172                                         }
1173                                 }
1174
1175                                 ldap_memfree( retoid );
1176                                 ber_bvfree( retdata );
1177                                 break;
1178
1179                         } else {
1180                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1181                                         "unknown intermediate response (%d)\n",
1182                                         si->si_ridtxt, rc, 0 );
1183                                 ldap_memfree( retoid );
1184                                 ber_bvfree( retdata );
1185                                 break;
1186                         }
1187                         break;
1188
1189                 default:
1190                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1191                                 "unknown message (0x%02lx)\n",
1192                                 si->si_ridtxt,
1193                                 (unsigned long)ldap_msgtype( msg ), 0 );
1194                         break;
1195
1196                 }
1197                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1198                         slap_sync_cookie_free( &syncCookie_req, 0 );
1199                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1200                         slap_sync_cookie_free( &syncCookie, 0 );
1201                 }
1202                 ldap_msgfree( msg );
1203                 msg = NULL;
1204                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1205                         slap_sync_cookie_free( &syncCookie, 0 );
1206                         slap_sync_cookie_free( &syncCookie_req, 0 );
1207                         return SYNC_PAUSED;
1208                 }
1209         }
1210
1211         if ( rc == -1 ) {
1212                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1213                 err = rc;
1214         }
1215
1216 done:
1217         if ( err != LDAP_SUCCESS ) {
1218                 Debug( LDAP_DEBUG_ANY,
1219                         "do_syncrep2: %s (%d) %s\n",
1220                         si->si_ridtxt, err, ldap_err2string( err ) );
1221         }
1222
1223         slap_sync_cookie_free( &syncCookie, 0 );
1224         slap_sync_cookie_free( &syncCookie_req, 0 );
1225
1226         if ( msg ) ldap_msgfree( msg );
1227
1228         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1229                 if ( si->si_conn ) {
1230                         connection_client_stop( si->si_conn );
1231                         si->si_conn = NULL;
1232                 }
1233                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1234                 si->si_ld = NULL;
1235         }
1236
1237         return rc;
1238 }
1239
1240 static void *
1241 do_syncrepl(
1242         void    *ctx,
1243         void    *arg )
1244 {
1245         struct re_s* rtask = arg;
1246         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1247         Connection conn = {0};
1248         OperationBuffer opbuf;
1249         Operation *op;
1250         int rc = LDAP_SUCCESS;
1251         int dostop = 0;
1252         ber_socket_t s;
1253         int i, defer = 1, fail = 0;
1254         Backend *be;
1255
1256         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1257
1258         if ( si == NULL )
1259                 return NULL;
1260
1261         /* There will never be more than one instance active */
1262         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1263
1264         switch( abs( si->si_type ) ) {
1265         case LDAP_SYNC_REFRESH_ONLY:
1266         case LDAP_SYNC_REFRESH_AND_PERSIST:
1267                 break;
1268         default:
1269                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1270                 return NULL;
1271         }
1272
1273         if ( slapd_shutdown ) {
1274                 if ( si->si_ld ) {
1275                         if ( si->si_conn ) {
1276                                 connection_client_stop( si->si_conn );
1277                                 si->si_conn = NULL;
1278                         }
1279                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1280                         si->si_ld = NULL;
1281                 }
1282                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1283                 return NULL;
1284         }
1285
1286         connection_fake_init( &conn, &opbuf, ctx );
1287         op = &opbuf.ob_op;
1288
1289         /* use global malloc for now */
1290         op->o_tmpmemctx = NULL;
1291         op->o_tmpmfuncs = &ch_mfuncs;
1292
1293         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1294         be = si->si_be;
1295
1296         /* Coordinate contextCSN updates with any syncprov overlays
1297          * in use. This may be complicated by the use of the glue
1298          * overlay.
1299          *
1300          * Typically there is a single syncprov mastering the entire
1301          * glued tree. In that case, our contextCSN updates should
1302          * go to the master DB. But if there is no syncprov on the
1303          * master DB, then nothing special is needed here.
1304          *
1305          * Alternatively, there may be individual syncprov overlays
1306          * on each glued branch. In that case, each syncprov only
1307          * knows about changes within its own branch. And so our
1308          * contextCSN updates should only go to the local DB.
1309          */
1310         if ( !si->si_wbe ) {
1311                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1312                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1313                         if ( overlay_is_inst( top_be, "syncprov" ))
1314                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1315                         else
1316                                 si->si_wbe = be;
1317                 } else {
1318                         si->si_wbe = be;
1319                 }
1320         }
1321         if ( !si->si_schemachecking )
1322                 op->o_no_schema_check = 1;
1323
1324         /* Establish session, do search */
1325         if ( !si->si_ld ) {
1326                 si->si_refreshDelete = 0;
1327                 si->si_refreshPresent = 0;
1328
1329                 /* use main DB when retrieving contextCSN */
1330                 op->o_bd = si->si_wbe;
1331                 op->o_dn = op->o_bd->be_rootdn;
1332                 op->o_ndn = op->o_bd->be_rootndn;
1333                 rc = do_syncrep1( op, si );
1334         }
1335
1336 reload:
1337         /* Process results */
1338         if ( rc == LDAP_SUCCESS ) {
1339                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1340
1341                 /* use current DB */
1342                 op->o_bd = be;
1343                 op->o_dn = op->o_bd->be_rootdn;
1344                 op->o_ndn = op->o_bd->be_rootndn;
1345                 rc = do_syncrep2( op, si );
1346                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1347                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1348                         goto reload;
1349                 }
1350
1351                 /* We got deleted while running on cn=config */
1352                 if ( !si->si_ctype ) {
1353                         if ( si->si_conn )
1354                                 dostop = 1;
1355                         rc = -1;
1356                 }
1357
1358                 if ( rc != SYNC_PAUSED ) {
1359                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1360                                 /* If we succeeded, enable the connection for further listening.
1361                                  * If we failed, tear down the connection and reschedule.
1362                                  */
1363                                 if ( rc == LDAP_SUCCESS ) {
1364                                         if ( si->si_conn ) {
1365                                                 connection_client_enable( si->si_conn );
1366                                         } else {
1367                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1368                                         }
1369                                 } else if ( si->si_conn ) {
1370                                         dostop = 1;
1371                                 }
1372                         } else {
1373                                 if ( rc == -2 ) rc = 0;
1374                         }
1375                 }
1376         }
1377
1378         /* At this point, we have 5 cases:
1379          * 1) for any hard failure, give up and remove this task
1380          * 2) for ServerDown, reschedule this task to run later
1381          * 3) for threadpool pause, reschedule to run immediately
1382          * 4) for Refresh and Success, reschedule to run
1383          * 5) for Persist and Success, reschedule to defer
1384          */
1385         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1386
1387         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1388                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1389         }
1390
1391         if ( dostop ) {
1392                 connection_client_stop( si->si_conn );
1393                 si->si_conn = NULL;
1394         }
1395
1396         if ( rc == SYNC_PAUSED ) {
1397                 rtask->interval.tv_sec = 0;
1398                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1399                 rtask->interval.tv_sec = si->si_interval;
1400                 rc = 0;
1401         } else if ( rc == LDAP_SUCCESS ) {
1402                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1403                         defer = 0;
1404                 }
1405                 rtask->interval.tv_sec = si->si_interval;
1406                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1407                 if ( si->si_retrynum ) {
1408                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1409                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1410                         }
1411                         si->si_retrynum[i] = RETRYNUM_TAIL;
1412                 }
1413         } else {
1414                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1415                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1416                                 break;
1417                 }
1418
1419                 if ( !si->si_ctype
1420                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1421                         if ( si->si_re ) {
1422                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1423                                 si->si_re = NULL;
1424                         }
1425                         fail = RETRYNUM_TAIL;
1426                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1427                         if ( si->si_retrynum[i] > 0 )
1428                                 si->si_retrynum[i]--;
1429                         fail = si->si_retrynum[i];
1430                         rtask->interval.tv_sec = si->si_retryinterval[i];
1431                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1432                         slap_wake_listener();
1433                 }
1434         }
1435
1436         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1437         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1438
1439         if ( rc ) {
1440                 if ( fail == RETRYNUM_TAIL ) {
1441                         Debug( LDAP_DEBUG_ANY,
1442                                 "do_syncrepl: %s quitting\n",
1443                                 si->si_ridtxt, 0, 0 );
1444                 } else if ( fail > 0 ) {
1445                         Debug( LDAP_DEBUG_ANY,
1446                                 "do_syncrepl: %s retrying (%d retries left)\n",
1447                                 si->si_ridtxt, fail, 0 );
1448                 } else {
1449                         Debug( LDAP_DEBUG_ANY,
1450                                 "do_syncrepl: %s retrying\n",
1451                                 si->si_ridtxt, 0, 0 );
1452                 }
1453         }
1454
1455         /* Do final delete cleanup */
1456         if ( !si->si_ctype ) {
1457                 cookie_state *cs = si->si_cookieState;
1458                 syncinfo_free( si, ( !be->be_syncinfo ||
1459                         be->be_syncinfo->si_cookieState != cs ));
1460         }
1461         return NULL;
1462 }
1463
1464 static slap_verbmasks modops[] = {
1465         { BER_BVC("add"), LDAP_REQ_ADD },
1466         { BER_BVC("delete"), LDAP_REQ_DELETE },
1467         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1468         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1469         { BER_BVNULL, 0 }
1470 };
1471
1472 static Modifications *
1473 syncrepl_accesslog_mods(
1474         syncinfo_t *si,
1475         struct berval *vals
1476 )
1477 {
1478         char *colon;
1479         const char *text;
1480         AttributeDescription *ad;
1481         struct berval bv, bv2;
1482         short op;
1483         Modifications *mod = NULL, *modlist = NULL, **modtail;
1484         int i;
1485
1486         modtail = &modlist;
1487
1488         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1489                 ad = NULL;
1490                 bv = vals[i];
1491
1492                 colon = ber_bvchr( &bv, ':' );
1493                 if ( !colon ) {
1494                         /* Invalid */
1495                         continue;
1496                 }
1497
1498                 bv.bv_len = colon - bv.bv_val;
1499                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1500                         /* Invalid */
1501                         continue;
1502                 }
1503
1504                 /* Ignore dynamically generated attrs */
1505                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1506                         continue;
1507                 }
1508
1509                 /* Ignore excluded attrs */
1510                 if ( ldap_charray_inlist( si->si_exattrs,
1511                         ad->ad_type->sat_cname.bv_val ) )
1512                 {
1513                         continue;
1514                 }
1515
1516                 switch(colon[1]) {
1517                 case '+':       op = LDAP_MOD_ADD; break;
1518                 case '-':       op = LDAP_MOD_DELETE; break;
1519                 case '=':       op = LDAP_MOD_REPLACE; break;
1520                 case '#':       op = LDAP_MOD_INCREMENT; break;
1521                 default:        continue;
1522                 }
1523
1524                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1525                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1526                         mod->sml_flags = 0;
1527                         mod->sml_op = op;
1528                         mod->sml_next = NULL;
1529                         mod->sml_desc = ad;
1530                         mod->sml_type = ad->ad_cname;
1531                         mod->sml_values = NULL;
1532                         mod->sml_nvalues = NULL;
1533                         mod->sml_numvals = 0;
1534
1535                         *modtail = mod;
1536                         modtail = &mod->sml_next;
1537                 }
1538                 if ( colon[2] == ' ' ) {
1539                         bv.bv_val = colon + 3;
1540                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1541                         ber_dupbv( &bv2, &bv );
1542                         ber_bvarray_add( &mod->sml_values, &bv2 );
1543                         mod->sml_numvals++;
1544                 }
1545         }
1546         return modlist;
1547 }
1548
1549 static Modifications *
1550 syncrepl_changelog_mods(
1551         syncinfo_t *si,
1552         struct berval *vals
1553 )
1554 {
1555         return NULL;    /* FIXME */
1556 }
1557
1558 static int
1559 syncrepl_message_to_op(
1560         syncinfo_t      *si,
1561         Operation       *op,
1562         LDAPMessage     *msg
1563 )
1564 {
1565         BerElement      *ber = NULL;
1566         Modifications   *modlist = NULL;
1567         logschema *ls;
1568         SlapReply rs = { REP_RESULT };
1569         slap_callback cb = { NULL, null_callback, NULL, NULL };
1570
1571         const char      *text;
1572         char txtbuf[SLAP_TEXT_BUFLEN];
1573         size_t textlen = sizeof txtbuf;
1574
1575         struct berval   bdn, dn = BER_BVNULL, ndn;
1576         struct berval   bv, *bvals = NULL;
1577         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1578                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1579                 psup = BER_BVNULL, nsup = BER_BVNULL;
1580         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1581
1582         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1583                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1584                         "Message type should be entry (%d)",
1585                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1586                 return -1;
1587         }
1588
1589         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1590                 ls = &accesslog_sc;
1591         else
1592                 ls = &changelog_sc;
1593
1594         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1595
1596         if ( rc != LDAP_SUCCESS ) {
1597                 Debug( LDAP_DEBUG_ANY,
1598                         "syncrepl_message_to_op: %s dn get failed (%d)",
1599                         si->si_ridtxt, rc, 0 );
1600                 return rc;
1601         }
1602
1603         op->o_tag = LBER_DEFAULT;
1604         op->o_bd = si->si_wbe;
1605
1606         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1607                 == LDAP_SUCCESS ) {
1608                 if ( bv.bv_val == NULL )
1609                         break;
1610
1611                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1612                         bdn = bvals[0];
1613                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1614                         ber_dupbv( &op->o_req_dn, &dn );
1615                         ber_dupbv( &op->o_req_ndn, &ndn );
1616                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1617                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1618                         freeReqDn = 1;
1619                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1620                         int i = verb_to_mask( bvals[0].bv_val, modops );
1621                         if ( i < 0 ) {
1622                                 Debug( LDAP_DEBUG_ANY,
1623                                         "syncrepl_message_to_op: %s unknown op %s",
1624                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1625                                 ch_free( bvals );
1626                                 rc = -1;
1627                                 goto done;
1628                         }
1629                         op->o_tag = modops[i].mask;
1630                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1631                         /* Parse attribute into modlist */
1632                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1633                                 modlist = syncrepl_accesslog_mods( si, bvals );
1634                         } else {
1635                                 modlist = syncrepl_changelog_mods( si, bvals );
1636                         }
1637                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1638                         rdn = bvals[0];
1639                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1640                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1641                                 deleteOldRdn = 1;
1642                         }
1643                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1644                         sup = bvals[0];
1645                 } else if ( !ber_bvstrcasecmp( &bv,
1646                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1647                 {
1648                         slap_queue_csn( op, bvals );
1649                 }
1650                 ch_free( bvals );
1651         }
1652
1653         /* If we didn't get a mod type or a target DN, bail out */
1654         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1655                 rc = -1;
1656                 goto done;
1657         }
1658
1659         op->o_callback = &cb;
1660         slap_op_time( &op->o_time, &op->o_tincr );
1661
1662         switch( op->o_tag ) {
1663         case LDAP_REQ_ADD:
1664         case LDAP_REQ_MODIFY:
1665                 /* If we didn't get required data, bail */
1666                 if ( !modlist ) goto done;
1667
1668                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1669
1670                 if ( rc != LDAP_SUCCESS ) {
1671                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1672                                 "mods check (%s)\n",
1673                                 si->si_ridtxt, text, 0 );
1674                         goto done;
1675                 }
1676
1677                 if ( op->o_tag == LDAP_REQ_ADD ) {
1678                         Entry *e = entry_alloc();
1679                         op->ora_e = e;
1680                         op->ora_e->e_name = op->o_req_dn;
1681                         op->ora_e->e_nname = op->o_req_ndn;
1682                         freeReqDn = 0;
1683                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1684                         if( rc != LDAP_SUCCESS ) {
1685                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1686                                 "mods2entry (%s)\n",
1687                                         si->si_ridtxt, text, 0 );
1688                         } else {
1689                                 rc = op->o_bd->be_add( op, &rs );
1690                                 Debug( LDAP_DEBUG_SYNC,
1691                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1692                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1693                         }
1694                         if ( e == op->ora_e )
1695                                 be_entry_release_w( op, op->ora_e );
1696                 } else {
1697                         op->orm_modlist = modlist;
1698                         op->o_bd = si->si_wbe;
1699                         rc = op->o_bd->be_modify( op, &rs );
1700                         modlist = op->orm_modlist;
1701                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1702                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1703                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1704                         op->o_bd = si->si_be;
1705                 }
1706                 break;
1707         case LDAP_REQ_MODRDN:
1708                 if ( BER_BVISNULL( &rdn ) ) goto done;
1709
1710                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1711                         goto done;
1712                 }
1713                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1714                         goto done;
1715                 }
1716                 if ( !BER_BVISNULL( &sup ) ) {
1717                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1718                                 goto done;
1719                         }
1720                         op->orr_newSup = &psup;
1721                         op->orr_nnewSup = &nsup;
1722                 } else {
1723                         op->orr_newSup = NULL;
1724                         op->orr_nnewSup = NULL;
1725                 }
1726                 op->orr_newrdn = prdn;
1727                 op->orr_nnewrdn = nrdn;
1728                 op->orr_deleteoldrdn = deleteOldRdn;
1729                 op->orr_modlist = NULL;
1730                 if ( slap_modrdn2mods( op, &rs ) ) {
1731                         goto done;
1732                 }
1733
1734                 /* Append modlist for operational attrs */
1735                 {
1736                         Modifications *m;
1737
1738                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1739                                 ;
1740                         m->sml_next = modlist;
1741                         modlist = NULL;
1742                 }
1743                 rc = op->o_bd->be_modrdn( op, &rs );
1744                 slap_mods_free( op->orr_modlist, 1 );
1745                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1746                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1747                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1748                 break;
1749         case LDAP_REQ_DELETE:
1750                 rc = op->o_bd->be_delete( op, &rs );
1751                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1752                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1753                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1754                 break;
1755         }
1756 done:
1757         slap_graduate_commit_csn( op );
1758         op->o_bd = si->si_be;
1759         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1760         BER_BVZERO( &op->o_csn );
1761         if ( modlist ) {
1762                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1763         }
1764         if ( !BER_BVISNULL( &rdn ) ) {
1765                 if ( !BER_BVISNULL( &nsup ) ) {
1766                         ch_free( nsup.bv_val );
1767                 }
1768                 if ( !BER_BVISNULL( &psup ) ) {
1769                         ch_free( psup.bv_val );
1770                 }
1771                 if ( !BER_BVISNULL( &nrdn ) ) {
1772                         ch_free( nrdn.bv_val );
1773                 }
1774                 if ( !BER_BVISNULL( &prdn ) ) {
1775                         ch_free( prdn.bv_val );
1776                 }
1777         }
1778         if ( freeReqDn ) {
1779                 ch_free( op->o_req_ndn.bv_val );
1780                 ch_free( op->o_req_dn.bv_val );
1781         }
1782         ber_free( ber, 0 );
1783         return rc;
1784 }
1785
1786 static int
1787 syncrepl_message_to_entry(
1788         syncinfo_t      *si,
1789         Operation       *op,
1790         LDAPMessage     *msg,
1791         Modifications   **modlist,
1792         Entry                   **entry,
1793         int             syncstate
1794 )
1795 {
1796         Entry           *e = NULL;
1797         BerElement      *ber = NULL;
1798         Modifications   tmp;
1799         Modifications   *mod;
1800         Modifications   **modtail = modlist;
1801
1802         const char      *text;
1803         char txtbuf[SLAP_TEXT_BUFLEN];
1804         size_t textlen = sizeof txtbuf;
1805
1806         struct berval   bdn = BER_BVNULL, dn, ndn;
1807         int             rc, is_ctx;
1808
1809         *modlist = NULL;
1810
1811         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1812                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1813                         "Message type should be entry (%d)",
1814                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1815                 return -1;
1816         }
1817
1818         op->o_tag = LDAP_REQ_ADD;
1819
1820         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1821         if ( rc != LDAP_SUCCESS ) {
1822                 Debug( LDAP_DEBUG_ANY,
1823                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1824                         si->si_ridtxt, rc, 0 );
1825                 return rc;
1826         }
1827
1828         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1829                 /* NOTE: this could be done even before decoding the DN,
1830                  * although encoding errors wouldn't be detected */
1831                 rc = LDAP_SUCCESS;
1832                 goto done;
1833         }
1834
1835         if ( entry == NULL ) {
1836                 return -1;
1837         }
1838
1839         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1840         ber_dupbv( &op->o_req_dn, &dn );
1841         ber_dupbv( &op->o_req_ndn, &ndn );
1842         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1843         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1844
1845         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1846
1847         e = entry_alloc();
1848         e->e_name = op->o_req_dn;
1849         e->e_nname = op->o_req_ndn;
1850
1851         while ( ber_remaining( ber ) ) {
1852                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1853                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1854                 {
1855                         break;
1856                 }
1857
1858                 /* Drop all updates to the contextCSN of the context entry
1859                  * (ITS#4622, etc.)
1860                  */
1861                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1862                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1863                         ber_bvarray_free( tmp.sml_values );
1864                         continue;
1865                 }
1866
1867                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1868
1869                 mod->sml_op = LDAP_MOD_REPLACE;
1870                 mod->sml_flags = 0;
1871                 mod->sml_next = NULL;
1872                 mod->sml_desc = NULL;
1873                 mod->sml_type = tmp.sml_type;
1874                 mod->sml_values = tmp.sml_values;
1875                 mod->sml_nvalues = NULL;
1876                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1877
1878                 *modtail = mod;
1879                 modtail = &mod->sml_next;
1880         }
1881
1882         if ( *modlist == NULL ) {
1883                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1884                         si->si_ridtxt, 0, 0 );
1885                 rc = -1;
1886                 goto done;
1887         }
1888
1889         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1890
1891         if ( rc != LDAP_SUCCESS ) {
1892                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1893                         si->si_ridtxt, text, 0 );
1894                 goto done;
1895         }
1896
1897         /* Strip out dynamically generated attrs */
1898         for ( modtail = modlist; *modtail ; ) {
1899                 mod = *modtail;
1900                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1901                         *modtail = mod->sml_next;
1902                         slap_mod_free( &mod->sml_mod, 0 );
1903                         ch_free( mod );
1904                 } else {
1905                         modtail = &mod->sml_next;
1906                 }
1907         }
1908
1909         /* Strip out attrs in exattrs list */
1910         for ( modtail = modlist; *modtail ; ) {
1911                 mod = *modtail;
1912                 if ( ldap_charray_inlist( si->si_exattrs,
1913                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1914                 {
1915                         *modtail = mod->sml_next;
1916                         slap_mod_free( &mod->sml_mod, 0 );
1917                         ch_free( mod );
1918                 } else {
1919                         modtail = &mod->sml_next;
1920                 }
1921         }
1922
1923         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1924         if( rc != LDAP_SUCCESS ) {
1925                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1926                         si->si_ridtxt, text, 0 );
1927         }
1928
1929 done:
1930         ber_free( ber, 0 );
1931         if ( rc != LDAP_SUCCESS ) {
1932                 if ( e ) {
1933                         entry_free( e );
1934                         e = NULL;
1935                 }
1936         }
1937         if ( entry )
1938                 *entry = e;
1939
1940         return rc;
1941 }
1942
1943 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1944
1945 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1946  * entry if a previous refresh was interrupted before sending us a new
1947  * context state. We try to compare the new entry to the existing entry
1948  * and ignore the new entry if they are the same.
1949  *
1950  * Also, we may get an update where the entryDN has changed, due to
1951  * a ModDn on the provider. We detect this as well, so we can issue
1952  * the corresponding operation locally.
1953  *
1954  * In the case of a modify, we get a list of all the attributes
1955  * in the original entry. Rather than deleting the entry and re-adding it,
1956  * we issue a Modify request that deletes all the attributes and adds all
1957  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1958  * entry.
1959  *
1960  * We otherwise distinguish ModDN from Modify; in the case of
1961  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1962  * operational attributes from the entry, and do a regular ModDN.
1963  */
1964 typedef struct dninfo {
1965         Entry *new_entry;
1966         struct berval dn;
1967         struct berval ndn;
1968         struct berval nnewSup;
1969         int renamed;    /* Was an existing entry renamed? */
1970         int delOldRDN;  /* Was old RDN deleted? */
1971         Modifications **modlist;        /* the modlist we received */
1972         Modifications *mods;    /* the modlist we compared */
1973         Attribute *oldNattr;    /* old naming attr */
1974         AttributeDescription *oldDesc;  /* for renames */
1975         AttributeDescription *newDesc;  /* for renames */
1976 } dninfo;
1977
1978 /* return 1 if inserted, 0 otherwise */
1979 static int
1980 avl_presentlist_insert(
1981         syncinfo_t* si,
1982         struct berval *syncUUID )
1983 {
1984         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1985
1986         syncuuid_bv->bv_len = syncUUID->bv_len;
1987         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1988         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1989         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1990
1991         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1992                 syncuuid_cmp, avl_dup_error ) )
1993         {
1994                 ch_free( syncuuid_bv );
1995                 return 0;
1996         }
1997
1998         return 1;
1999 }
2000
2001 static int
2002 syncrepl_entry(
2003         syncinfo_t* si,
2004         Operation *op,
2005         Entry* entry,
2006         Modifications** modlist,
2007         int syncstate,
2008         struct berval* syncUUID,
2009         struct berval* syncCSN )
2010 {
2011         Backend *be = op->o_bd;
2012         slap_callback   cb = { NULL, NULL, NULL, NULL };
2013         int syncuuid_inserted = 0;
2014         struct berval   syncUUID_strrep = BER_BVNULL;
2015
2016         SlapReply       rs_search = {REP_RESULT};
2017         SlapReply       rs_delete = {REP_RESULT};
2018         SlapReply       rs_add = {REP_RESULT};
2019         SlapReply       rs_modify = {REP_RESULT};
2020         Filter f = {0};
2021         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2022         int rc = LDAP_SUCCESS;
2023
2024         struct berval pdn = BER_BVNULL;
2025         dninfo dni = {0};
2026         int     retry = 1;
2027         int     freecsn = 1;
2028
2029         Debug( LDAP_DEBUG_SYNC,
2030                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2031                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2032
2033         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2034                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2035                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2036                 }
2037         }
2038
2039         if ( syncstate == LDAP_SYNC_PRESENT ) {
2040                 return 0;
2041         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2042                 if ( entry == NULL ) {
2043                         return 0;
2044                 }
2045         }
2046
2047         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2048         if ( syncstate != LDAP_SYNC_DELETE ) {
2049                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2050
2051                 if ( a == NULL ) {
2052                         /* add if missing */
2053                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2054                                 &syncUUID_strrep, syncUUID );
2055
2056                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2057                         /* replace only if necessary */
2058                         if ( a->a_nvals != a->a_vals ) {
2059                                 ber_memfree( a->a_nvals[0].bv_val );
2060                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2061                         }
2062                         ber_memfree( a->a_vals[0].bv_val );
2063                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2064                 }
2065         }
2066
2067         f.f_choice = LDAP_FILTER_EQUALITY;
2068         f.f_ava = &ava;
2069         ava.aa_desc = slap_schema.si_ad_entryUUID;
2070         ava.aa_value = *syncUUID;
2071
2072         if ( syncuuid_inserted ) {
2073                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2074                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2075         }
2076         op->ors_filter = &f;
2077
2078         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2079         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2080                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2081         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2082         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2083                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2084         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2085         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2086
2087         op->o_tag = LDAP_REQ_SEARCH;
2088         op->ors_scope = LDAP_SCOPE_SUBTREE;
2089         op->ors_deref = LDAP_DEREF_NEVER;
2090
2091         /* get the entry for this UUID */
2092         op->o_req_dn = si->si_base;
2093         op->o_req_ndn = si->si_base;
2094
2095         op->o_time = slap_get_time();
2096         op->ors_tlimit = SLAP_NO_LIMIT;
2097         op->ors_slimit = 1;
2098         op->ors_limit = NULL;
2099
2100         op->ors_attrs = slap_anlist_all_attributes;
2101         op->ors_attrsonly = 0;
2102
2103         /* set callback function */
2104         op->o_callback = &cb;
2105         cb.sc_response = dn_callback;
2106         cb.sc_private = &dni;
2107         dni.new_entry = entry;
2108         dni.modlist = modlist;
2109
2110         rc = be->be_search( op, &rs_search );
2111         Debug( LDAP_DEBUG_SYNC,
2112                         "syncrepl_entry: %s be_search (%d)\n",
2113                         si->si_ridtxt, rc, 0 );
2114
2115         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2116                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2117         }
2118
2119         cb.sc_response = null_callback;
2120         cb.sc_private = si;
2121
2122         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2123                 Debug( LDAP_DEBUG_SYNC,
2124                                 "syncrepl_entry: %s %s\n",
2125                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2126         } else {
2127                 Debug( LDAP_DEBUG_SYNC,
2128                                 "syncrepl_entry: %s %s\n",
2129                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2130         }
2131
2132         assert( BER_BVISNULL( &op->o_csn ) );
2133         if ( syncCSN ) {
2134                 slap_queue_csn( op, syncCSN );
2135         }
2136
2137         slap_op_time( &op->o_time, &op->o_tincr );
2138         switch ( syncstate ) {
2139         case LDAP_SYNC_ADD:
2140         case LDAP_SYNC_MODIFY:
2141                 if ( BER_BVISNULL( &op->o_csn ))
2142                 {
2143
2144                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2145                         if ( a ) {
2146                                 /* FIXME: op->o_csn is assumed to be
2147                                  * on the thread's slab; this needs
2148                                  * to be cleared ASAP.
2149                                  * What happens if already present?
2150                                  */
2151                                 assert( BER_BVISNULL( &op->o_csn ) );
2152                                 op->o_csn = a->a_vals[0];
2153                                 freecsn = 0;
2154                         }
2155                 }
2156 retry_add:;
2157                 if ( BER_BVISNULL( &dni.dn ) ) {
2158
2159                         op->o_req_dn = entry->e_name;
2160                         op->o_req_ndn = entry->e_nname;
2161                         op->o_tag = LDAP_REQ_ADD;
2162                         op->ora_e = entry;
2163                         op->o_bd = si->si_wbe;
2164
2165                         rc = op->o_bd->be_add( op, &rs_add );
2166                         Debug( LDAP_DEBUG_SYNC,
2167                                         "syncrepl_entry: %s be_add (%d)\n",
2168                                         si->si_ridtxt, rc, 0 );
2169                         switch ( rs_add.sr_err ) {
2170                         case LDAP_SUCCESS:
2171                                 if ( op->ora_e == entry ) {
2172                                         be_entry_release_w( op, entry );
2173                                 }
2174                                 entry = NULL;
2175                                 break;
2176
2177                         case LDAP_REFERRAL:
2178                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2179                          * only if the suffix entry is not present */
2180                         case LDAP_NO_SUCH_OBJECT:
2181                                 rc = syncrepl_add_glue( op, entry );
2182                                 entry = NULL;
2183                                 break;
2184
2185                         /* if an entry was added via syncrepl_add_glue(),
2186                          * it likely has no entryUUID, so the previous
2187                          * be_search() doesn't find it.  In this case,
2188                          * give syncrepl a chance to modify it. Also
2189                          * allow for entries that were recreated with the
2190                          * same DN but a different entryUUID.
2191                          */
2192                         case LDAP_ALREADY_EXISTS:
2193                                 if ( retry ) {
2194                                         Operation       op2 = *op;
2195                                         SlapReply       rs2 = { 0 };
2196                                         slap_callback   cb2 = { 0 };
2197
2198                                         op2.o_bd = be;
2199                                         op2.o_tag = LDAP_REQ_SEARCH;
2200                                         op2.o_req_dn = entry->e_name;
2201                                         op2.o_req_ndn = entry->e_nname;
2202                                         op2.ors_scope = LDAP_SCOPE_BASE;
2203                                         op2.ors_deref = LDAP_DEREF_NEVER;
2204                                         op2.ors_attrs = slap_anlist_all_attributes;
2205                                         op2.ors_attrsonly = 0;
2206                                         op2.ors_limit = NULL;
2207                                         op2.ors_slimit = 1;
2208                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2209
2210                                         f.f_choice = LDAP_FILTER_PRESENT;
2211                                         f.f_desc = slap_schema.si_ad_objectClass;
2212                                         op2.ors_filter = &f;
2213                                         op2.ors_filterstr = generic_filterstr;
2214
2215                                         op2.o_callback = &cb2;
2216                                         cb2.sc_response = dn_callback;
2217                                         cb2.sc_private = &dni;
2218
2219                                         rc = be->be_search( &op2, &rs2 );
2220                                         if ( rc ) goto done;
2221
2222                                         retry = 0;
2223                                         slap_op_time( &op->o_time, &op->o_tincr );
2224                                         goto retry_add;
2225                                 }
2226                                 /* FALLTHRU */
2227
2228                         default:
2229                                 Debug( LDAP_DEBUG_ANY,
2230                                         "syncrepl_entry: %s be_add failed (%d)\n",
2231                                         si->si_ridtxt, rs_add.sr_err, 0 );
2232                                 break;
2233                         }
2234                         op->o_bd = be;
2235                         goto done;
2236                 }
2237                 /* FALLTHRU */
2238                 op->o_req_dn = dni.dn;
2239                 op->o_req_ndn = dni.ndn;
2240                 if ( dni.renamed ) {
2241                         struct berval noldp, newp;
2242                         Modifications *mod, **modtail, **ml, *m2;
2243                         int i, got_replace = 0, just_rename = 0;
2244
2245                         op->o_tag = LDAP_REQ_MODRDN;
2246                         dnRdn( &entry->e_name, &op->orr_newrdn );
2247                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2248
2249                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2250                                 dnParent( &entry->e_name, &newp );
2251                                 op->orr_newSup = &newp;
2252                                 op->orr_nnewSup = &dni.nnewSup;
2253                         } else {
2254                                 op->orr_newSup = NULL;
2255                                 op->orr_nnewSup = NULL;
2256                         }
2257                         op->orr_deleteoldrdn = dni.delOldRDN;
2258                         op->orr_modlist = NULL;
2259                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2260                                 goto done;
2261                         }
2262
2263                         /* Drop the RDN-related mods from this op, because their
2264                          * equivalents were just setup by slap_modrdn2mods.
2265                          *
2266                          * If delOldRDN is TRUE then we should see a delete modop
2267                          * for oldDesc. We might see a replace instead.
2268                          *  delete with no values: therefore newDesc != oldDesc.
2269                          *   if oldNattr had only one value, then Drop this op.
2270                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2271                          *  delete with N values: Drop oldRDN value, keep remainder.
2272                          *  replace with 1 value: if oldNattr had only one value and
2273                          *     newDesc == oldDesc, Drop this op.
2274                          * Any other cases must be left intact.
2275                          *
2276                          * We should also see an add modop for newDesc. (But not if
2277                          * we got a replace modop due to delOldRDN.) If it has
2278                          * multiple values, we'll have to drop the new RDN value.
2279                          */
2280                         modtail = &op->orr_modlist;
2281                         if ( dni.delOldRDN ) {
2282                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2283                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2284                                                 mod = *ml;
2285                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2286                                                         dni.oldDesc != dni.newDesc ) {
2287                                                         /* This Replace is due to other Mods.
2288                                                          * Just let it ride.
2289                                                          */
2290                                                         continue;
2291                                                 }
2292                                                 if ( mod->sml_numvals <= 1 &&
2293                                                         dni.oldNattr->a_numvals == 1 &&
2294                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2295                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2296                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2297                                                                 got_replace = 1;
2298                                                         /* Drop this op */
2299                                                         *ml = mod->sml_next;
2300                                                         mod->sml_next = NULL;
2301                                                         slap_mods_free( mod, 1 );
2302                                                         break;
2303                                                 }
2304                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2305                                                         continue;
2306                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2307                                                         if ( m2->sml_desc == dni.oldDesc &&
2308                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2309                                                 }
2310                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2311                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2312                                                                 mod->sml_numvals--;
2313                                                                 ch_free( mod->sml_values[i].bv_val );
2314                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2315                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2316                                                                 if ( mod->sml_nvalues ) {
2317                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2318                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2319                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2320                                                                 }
2321                                                                 break;
2322                                                         }
2323                                                 }
2324                                                 break;
2325                                         }
2326                                 }
2327                         }
2328                         if ( !got_replace ) {
2329                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2330                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2331                                                 mod = *ml;
2332                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2333                                                         continue;
2334                                                 if ( mod->sml_numvals == 1 ) {
2335                                                         /* Drop this op */
2336                                                         *ml = mod->sml_next;
2337                                                         mod->sml_next = NULL;
2338                                                         slap_mods_free( mod, 1 );
2339                                                         break;
2340                                                 }
2341                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2342                                                         if ( m2->sml_desc == dni.oldDesc &&
2343                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2344                                                 }
2345                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2346                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2347                                                                 mod->sml_numvals--;
2348                                                                 ch_free( mod->sml_values[i].bv_val );
2349                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2350                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2351                                                                 if ( mod->sml_nvalues ) {
2352                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2353                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2354                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2355                                                                 }
2356                                                                 break;
2357                                                         }
2358                                                 }
2359                                                 break;
2360                                         }
2361                                 }
2362                         }
2363
2364                         /* RDNs must be NUL-terminated for back-ldap */
2365                         noldp = op->orr_newrdn;
2366                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2367                         noldp = op->orr_nnewrdn;
2368                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2369
2370                         /* Setup opattrs too */
2371                         {
2372                                 static AttributeDescription *nullattr = NULL;
2373                                 static AttributeDescription **const opattrs[] = {
2374                                         &slap_schema.si_ad_entryCSN,
2375                                         &slap_schema.si_ad_modifiersName,
2376                                         &slap_schema.si_ad_modifyTimestamp,
2377                                         &nullattr
2378                                 };
2379                                 AttributeDescription *opattr;
2380                                 int i;
2381
2382                                 modtail = &m2;
2383                                 /* pull mod off incoming modlist */
2384                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2385                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2386                                         {
2387                                                 if ( (*ml)->sml_desc == opattr ) {
2388                                                         mod = *ml;
2389                                                         *ml = mod->sml_next;
2390                                                         mod->sml_next = NULL;
2391                                                         *modtail = mod;
2392                                                         modtail = &mod->sml_next;
2393                                                         break;
2394                                                 }
2395                                         }
2396                                 }
2397                                 /* If there are still Modifications left, put the opattrs
2398                                  * back, and let be_modify run. Otherwise, append the opattrs
2399                                  * to the orr_modlist.
2400                                  */
2401                                 if ( dni.mods ) {
2402                                         mod = dni.mods;
2403                                         /* don't set a CSN for the rename op */
2404                                         if ( syncCSN )
2405                                                 slap_graduate_commit_csn( op );
2406                                 } else {
2407                                         mod = op->orr_modlist;
2408                                         just_rename = 1;
2409                                 }
2410                                 for ( ; mod->sml_next; mod=mod->sml_next );
2411                                 mod->sml_next = m2;
2412                         }
2413                         op->o_bd = si->si_wbe;
2414                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2415                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2416                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2417
2418                         slap_mods_free( op->orr_modlist, 1 );
2419                         Debug( LDAP_DEBUG_SYNC,
2420                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2421                                         si->si_ridtxt, rc, 0 );
2422                         op->o_bd = be;
2423                         /* Renamed entries may still have other mods so just fallthru */
2424                         op->o_req_dn = entry->e_name;
2425                         op->o_req_ndn = entry->e_nname;
2426                         /* Use CSN on the modify */
2427                         if ( syncCSN && !just_rename )
2428                                 slap_queue_csn( op, syncCSN );
2429                 }
2430                 if ( dni.mods ) {
2431                         op->o_tag = LDAP_REQ_MODIFY;
2432                         op->orm_modlist = dni.mods;
2433                         op->orm_no_opattrs = 1;
2434                         op->o_bd = si->si_wbe;
2435
2436                         rc = op->o_bd->be_modify( op, &rs_modify );
2437                         slap_mods_free( op->orm_modlist, 1 );
2438                         op->orm_no_opattrs = 0;
2439                         Debug( LDAP_DEBUG_SYNC,
2440                                         "syncrepl_entry: %s be_modify (%d)\n",
2441                                         si->si_ridtxt, rc, 0 );
2442                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2443                                 Debug( LDAP_DEBUG_ANY,
2444                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2445                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2446                         }
2447                         op->o_bd = be;
2448                 } else if ( !dni.renamed ) {
2449                         Debug( LDAP_DEBUG_SYNC,
2450                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2451                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2452                 }
2453                 goto done;
2454         case LDAP_SYNC_DELETE :
2455                 if ( !BER_BVISNULL( &dni.dn ) ) {
2456                         op->o_req_dn = dni.dn;
2457                         op->o_req_ndn = dni.ndn;
2458                         op->o_tag = LDAP_REQ_DELETE;
2459                         op->o_bd = si->si_wbe;
2460                         rc = op->o_bd->be_delete( op, &rs_delete );
2461                         Debug( LDAP_DEBUG_SYNC,
2462                                         "syncrepl_entry: %s be_delete (%d)\n",
2463                                         si->si_ridtxt, rc, 0 );
2464
2465                         while ( rs_delete.sr_err == LDAP_SUCCESS
2466                                 && op->o_delete_glue_parent ) {
2467                                 op->o_delete_glue_parent = 0;
2468                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2469                                         slap_callback cb = { NULL };
2470                                         cb.sc_response = slap_null_cb;
2471                                         dnParent( &op->o_req_ndn, &pdn );
2472                                         op->o_req_dn = pdn;
2473                                         op->o_req_ndn = pdn;
2474                                         op->o_callback = &cb;
2475                                         op->o_bd->be_delete( op, &rs_delete );
2476                                 } else {
2477                                         break;
2478                                 }
2479                         }
2480                         op->o_bd = be;
2481                 }
2482                 goto done;
2483
2484         default :
2485                 Debug( LDAP_DEBUG_ANY,
2486                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2487                 goto done;
2488         }
2489
2490 done:
2491         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2492                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2493                 BER_BVZERO( &syncUUID_strrep );
2494         }
2495         if ( !BER_BVISNULL( &dni.ndn ) ) {
2496                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2497         }
2498         if ( !BER_BVISNULL( &dni.dn ) ) {
2499                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2500         }
2501         if ( entry ) {
2502                 entry_free( entry );
2503         }
2504         if ( syncCSN ) {
2505                 slap_graduate_commit_csn( op );
2506         }
2507         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2508                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2509         }
2510         BER_BVZERO( &op->o_csn );
2511         return rc;
2512 }
2513
2514 static struct berval gcbva[] = {
2515         BER_BVC("top"),
2516         BER_BVC("glue"),
2517         BER_BVNULL
2518 };
2519
2520 #define NP_DELETE_ONE   2
2521
2522 static void
2523 syncrepl_del_nonpresent(
2524         Operation *op,
2525         syncinfo_t *si,
2526         BerVarray uuids,
2527         struct sync_cookie *sc,
2528         int m )
2529 {
2530         Backend* be = op->o_bd;
2531         slap_callback   cb = { NULL };
2532         SlapReply       rs_search = {REP_RESULT};
2533         SlapReply       rs_delete = {REP_RESULT};
2534         SlapReply       rs_modify = {REP_RESULT};
2535         struct nonpresent_entry *np_list, *np_prev;
2536         int rc;
2537         AttributeName   an[2];
2538
2539         struct berval pdn = BER_BVNULL;
2540         struct berval csn;
2541
2542         op->o_req_dn = si->si_base;
2543         op->o_req_ndn = si->si_base;
2544
2545         cb.sc_response = nonpresent_callback;
2546         cb.sc_private = si;
2547
2548         op->o_callback = &cb;
2549         op->o_tag = LDAP_REQ_SEARCH;
2550         op->ors_scope = si->si_scope;
2551         op->ors_deref = LDAP_DEREF_NEVER;
2552         op->o_time = slap_get_time();
2553         op->ors_tlimit = SLAP_NO_LIMIT;
2554
2555
2556         if ( uuids ) {
2557                 Filter uf;
2558                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2559                 int i;
2560
2561                 op->ors_attrsonly = 1;
2562                 op->ors_attrs = slap_anlist_no_attrs;
2563                 op->ors_limit = NULL;
2564                 op->ors_filter = &uf;
2565
2566                 uf.f_ava = &eq;
2567                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2568                 uf.f_next = NULL;
2569                 uf.f_choice = LDAP_FILTER_EQUALITY;
2570                 si->si_refreshDelete |= NP_DELETE_ONE;
2571
2572                 for (i=0; uuids[i].bv_val; i++) {
2573                         op->ors_slimit = 1;
2574                         uf.f_av_value = uuids[i];
2575                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2576                         rc = be->be_search( op, &rs_search );
2577                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2578                 }
2579                 si->si_refreshDelete ^= NP_DELETE_ONE;
2580         } else {
2581                 Filter *cf, *of;
2582                 Filter mmf[2];
2583                 AttributeAssertion mmaa;
2584
2585                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2586                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2587                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2588                 op->ors_attrs = an;
2589                 op->ors_slimit = SLAP_NO_LIMIT;
2590                 op->ors_tlimit = SLAP_NO_LIMIT;
2591                 op->ors_limit = NULL;
2592                 op->ors_attrsonly = 0;
2593                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2594                 /* In multimaster, updates can continue to arrive while
2595                  * we're searching. Limit the search result to entries
2596                  * older than our newest cookie CSN.
2597                  */
2598                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2599                         Filter *f;
2600                         int i;
2601
2602                         f = mmf;
2603                         f->f_choice = LDAP_FILTER_AND;
2604                         f->f_next = op->ors_filter;
2605                         f->f_and = f+1;
2606                         of = f->f_and;
2607                         f = of;
2608                         f->f_choice = LDAP_FILTER_LE;
2609                         f->f_ava = &mmaa;
2610                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2611                         f->f_next = NULL;
2612                         BER_BVZERO( &f->f_av_value );
2613                         for ( i=0; i<sc->numcsns; i++ ) {
2614                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2615                                         f->f_av_value = sc->ctxcsn[i];
2616                         }
2617                         of = op->ors_filter;
2618                         op->ors_filter = mmf;
2619                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2620                 } else {
2621                         cf = NULL;
2622                         op->ors_filterstr = si->si_filterstr;
2623                 }
2624                 op->o_nocaching = 1;
2625
2626
2627                 rc = be->be_search( op, &rs_search );
2628                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2629                         op->ors_filter = of;
2630                 }
2631                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2632                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2633                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2634                 }
2635
2636         }
2637
2638         op->o_nocaching = 0;
2639
2640         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2641
2642                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2643                         csn = sc->ctxcsn[m];
2644                 } else {
2645                         csn = si->si_syncCookie.ctxcsn[0];
2646                 }
2647
2648                 op->o_bd = si->si_wbe;
2649                 slap_queue_csn( op, &csn );
2650
2651                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2652                 while ( np_list != NULL ) {
2653                         LDAP_LIST_REMOVE( np_list, npe_link );
2654                         np_prev = np_list;
2655                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2656                         op->o_tag = LDAP_REQ_DELETE;
2657                         op->o_callback = &cb;
2658                         cb.sc_response = null_callback;
2659                         cb.sc_private = si;
2660                         op->o_req_dn = *np_prev->npe_name;
2661                         op->o_req_ndn = *np_prev->npe_nname;
2662                         rc = op->o_bd->be_delete( op, &rs_delete );
2663                         Debug( LDAP_DEBUG_SYNC,
2664                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2665                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2666
2667                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2668                                 Modifications mod1, mod2;
2669                                 mod1.sml_op = LDAP_MOD_REPLACE;
2670                                 mod1.sml_flags = 0;
2671                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2672                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2673                                 mod1.sml_numvals = 2;
2674                                 mod1.sml_values = &gcbva[0];
2675                                 mod1.sml_nvalues = NULL;
2676                                 mod1.sml_next = &mod2;
2677
2678                                 mod2.sml_op = LDAP_MOD_REPLACE;
2679                                 mod2.sml_flags = 0;
2680                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2681                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2682                                 mod2.sml_numvals = 1;
2683                                 mod2.sml_values = &gcbva[1];
2684                                 mod2.sml_nvalues = NULL;
2685                                 mod2.sml_next = NULL;
2686
2687                                 op->o_tag = LDAP_REQ_MODIFY;
2688                                 op->orm_modlist = &mod1;
2689
2690                                 rc = op->o_bd->be_modify( op, &rs_modify );
2691                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2692                         }
2693
2694                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2695                                         op->o_delete_glue_parent ) {
2696                                 op->o_delete_glue_parent = 0;
2697                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2698                                         slap_callback cb = { NULL };
2699                                         cb.sc_response = slap_null_cb;
2700                                         dnParent( &op->o_req_ndn, &pdn );
2701                                         op->o_req_dn = pdn;
2702                                         op->o_req_ndn = pdn;
2703                                         op->o_callback = &cb;
2704                                         /* give it a root privil ? */
2705                                         op->o_bd->be_delete( op, &rs_delete );
2706                                 } else {
2707                                         break;
2708                                 }
2709                         }
2710
2711                         op->o_delete_glue_parent = 0;
2712
2713                         ber_bvfree( np_prev->npe_name );
2714                         ber_bvfree( np_prev->npe_nname );
2715                         ch_free( np_prev );
2716
2717                         if ( slapd_shutdown ) {
2718                                 break;
2719                         }
2720                 }
2721
2722                 slap_graduate_commit_csn( op );
2723                 op->o_bd = be;
2724
2725                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2726                 BER_BVZERO( &op->o_csn );
2727         }
2728
2729         return;
2730 }
2731
2732 int
2733 syncrepl_add_glue(
2734         Operation* op,
2735         Entry *e )
2736 {
2737         Backend *be = op->o_bd;
2738         slap_callback cb = { NULL };
2739         Attribute       *a;
2740         int     rc;
2741         int suffrdns;
2742         int i;
2743         struct berval dn = BER_BVNULL;
2744         struct berval ndn = BER_BVNULL;
2745         Entry   *glue;
2746         SlapReply       rs_add = {REP_RESULT};
2747         struct berval   ptr, nptr;
2748         char            *comma;
2749
2750         op->o_tag = LDAP_REQ_ADD;
2751         op->o_callback = &cb;
2752         cb.sc_response = null_callback;
2753         cb.sc_private = NULL;
2754
2755         dn = e->e_name;
2756         ndn = e->e_nname;
2757
2758         /* count RDNs in suffix */
2759         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2760                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2761                         comma++;
2762                         ptr.bv_len -= comma - ptr.bv_val;
2763                         ptr.bv_val = comma;
2764                         i++;
2765                 }
2766                 suffrdns = i;
2767         } else {
2768                 /* suffix is "" */
2769                 suffrdns = 0;
2770         }
2771
2772         /* Start with BE suffix */
2773         ptr = dn;
2774         for ( i = 0; i < suffrdns; i++ ) {
2775                 comma = ber_bvrchr( &ptr, ',' );
2776                 if ( comma != NULL ) {
2777                         ptr.bv_len = comma - ptr.bv_val;
2778                 } else {
2779                         ptr.bv_len = 0;
2780                         break;
2781                 }
2782         }
2783
2784         if ( !BER_BVISEMPTY( &ptr ) ) {
2785                 dn.bv_len -= ptr.bv_len + 1;
2786                 dn.bv_val += ptr.bv_len + 1;
2787         }
2788
2789         /* the normalizedDNs are always the same length, no counting
2790          * required.
2791          */
2792         nptr = ndn;
2793         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2794                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2795                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2796
2797                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2798
2799         } else {
2800                 nptr.bv_len = 0;
2801         }
2802
2803         while ( ndn.bv_val > e->e_nname.bv_val ) {
2804                 glue = entry_alloc();
2805                 ber_dupbv( &glue->e_name, &dn );
2806                 ber_dupbv( &glue->e_nname, &ndn );
2807
2808                 a = attr_alloc( slap_schema.si_ad_objectClass );
2809
2810                 a->a_numvals = 2;
2811                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2812                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2813                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2814                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2815
2816                 a->a_nvals = a->a_vals;
2817
2818                 a->a_next = glue->e_attrs;
2819                 glue->e_attrs = a;
2820
2821                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2822
2823                 a->a_numvals = 1;
2824                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2825                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2826                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2827
2828                 a->a_nvals = a->a_vals;
2829
2830                 a->a_next = glue->e_attrs;
2831                 glue->e_attrs = a;
2832
2833                 op->o_req_dn = glue->e_name;
2834                 op->o_req_ndn = glue->e_nname;
2835                 op->ora_e = glue;
2836                 rc = be->be_add ( op, &rs_add );
2837                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2838                         if ( op->ora_e == glue )
2839                                 be_entry_release_w( op, glue );
2840                 } else {
2841                 /* incl. ALREADY EXIST */
2842                         entry_free( glue );
2843                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2844                                 entry_free( e );
2845                                 return rc;
2846                         }
2847                 }
2848
2849                 /* Move to next child */
2850                 comma = ber_bvrchr( &ptr, ',' );
2851                 if ( comma == NULL ) {
2852                         break;
2853                 }
2854                 ptr.bv_len = comma - ptr.bv_val;
2855
2856                 dn.bv_val = ++comma;
2857                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2858
2859                 comma = ber_bvrchr( &nptr, ',' );
2860                 assert( comma != NULL );
2861                 nptr.bv_len = comma - nptr.bv_val;
2862
2863                 ndn.bv_val = ++comma;
2864                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2865         }
2866
2867         op->o_req_dn = e->e_name;
2868         op->o_req_ndn = e->e_nname;
2869         op->ora_e = e;
2870         rc = be->be_add ( op, &rs_add );
2871         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2872                 if ( op->ora_e == e )
2873                         be_entry_release_w( op, e );
2874         } else {
2875                 entry_free( e );
2876         }
2877
2878         return rc;
2879 }
2880
2881 static int
2882 syncrepl_updateCookie(
2883         syncinfo_t *si,
2884         Operation *op,
2885         struct berval *pdn,
2886         struct sync_cookie *syncCookie )
2887 {
2888         Backend *be = op->o_bd;
2889         Modifications mod;
2890         struct berval first = BER_BVNULL;
2891 #ifdef CHECK_CSN
2892         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
2893 #endif
2894
2895         int rc, i, j;
2896         ber_len_t len;
2897
2898         slap_callback cb = { NULL };
2899         SlapReply       rs_modify = {REP_RESULT};
2900
2901         mod.sml_op = LDAP_MOD_REPLACE;
2902         mod.sml_desc = slap_schema.si_ad_contextCSN;
2903         mod.sml_type = mod.sml_desc->ad_cname;
2904         mod.sml_flags = SLAP_MOD_INTERNAL;
2905         mod.sml_nvalues = NULL;
2906         mod.sml_next = NULL;
2907
2908         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2909
2910 #ifdef CHECK_CSN
2911         for ( i=0; i<syncCookie->numcsns; i++ ) {
2912                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
2913         }
2914         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2915                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
2916         }
2917 #endif
2918
2919         /* clone the cookieState CSNs so we can Replace the whole thing */
2920         mod.sml_numvals = si->si_cookieState->cs_num;
2921         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2922         for ( i=0; i<mod.sml_numvals; i++ )
2923                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2924         BER_BVZERO( &mod.sml_values[i] );
2925
2926         /* find any CSNs in the syncCookie that are newer than the cookieState */
2927         for ( i=0; i<syncCookie->numcsns; i++ ) {
2928                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2929                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2930                                 continue;
2931                         len = syncCookie->ctxcsn[i].bv_len;
2932                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2933                                 len = si->si_cookieState->cs_vals[j].bv_len;
2934                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2935                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2936                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2937                                 if ( BER_BVISNULL( &first ) ) {
2938                                         first = syncCookie->ctxcsn[i];
2939
2940                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2941                                 {
2942                                         first = syncCookie->ctxcsn[i];
2943                                 }
2944                         }
2945                         break;
2946                 }
2947                 /* there was no match for this SID, it's a new CSN */
2948                 if ( j == si->si_cookieState->cs_num ) {
2949                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2950                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2951                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2952                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2953                         if ( BER_BVISNULL( &first ) ) {
2954                                 first = syncCookie->ctxcsn[i];
2955                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2956                         {
2957                                 first = syncCookie->ctxcsn[i];
2958                         }
2959                 }
2960         }
2961         /* Should never happen, ITS#5065 */
2962         if ( BER_BVISNULL( &first )) {
2963                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2964                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2965                 return 0;
2966         }
2967         op->o_bd = si->si_wbe;
2968         slap_queue_csn( op, &first );
2969
2970         op->o_tag = LDAP_REQ_MODIFY;
2971
2972         cb.sc_response = null_callback;
2973         cb.sc_private = si;
2974
2975         op->o_callback = &cb;
2976         op->o_req_dn = op->o_bd->be_suffix[0];
2977         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2978
2979         /* update contextCSN */
2980         op->o_dont_replicate = 1;
2981
2982         op->orm_modlist = &mod;
2983         op->orm_no_opattrs = 1;
2984         rc = op->o_bd->be_modify( op, &rs_modify );
2985         op->orm_no_opattrs = 0;
2986         op->o_dont_replicate = 0;
2987
2988         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2989                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2990                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2991                 /* If we replaced any old values */
2992                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2993                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2994                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2995                                                 &mod.sml_values[i] );
2996                 }
2997                 /* Handle any added values */
2998                 if ( i < mod.sml_numvals ) {
2999                         si->si_cookieState->cs_num = mod.sml_numvals;
3000                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
3001                         free( si->si_cookieState->cs_sids );
3002                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
3003                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
3004                 }
3005
3006                 si->si_cookieState->cs_age++;
3007                 si->si_cookieAge = si->si_cookieState->cs_age;
3008         } else {
3009                 Debug( LDAP_DEBUG_ANY,
3010                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3011                         si->si_ridtxt, rs_modify.sr_err, 0 );
3012         }
3013         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3014
3015         op->o_bd = be;
3016         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3017         BER_BVZERO( &op->o_csn );
3018         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3019         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3020
3021 #ifdef CHECK_CSN
3022         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3023                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3024         }
3025 #endif
3026
3027         return rc;
3028 }
3029
3030 static void
3031 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3032         Modifications ***mret, Modifications ***mcur )
3033 {
3034         int i, j;
3035         Modifications *mod, **modtail;
3036
3037         modtail = *mret;
3038
3039         if ( old ) {
3040                 int n, o, nn, no;
3041                 struct berval **adds, **dels;
3042                 /* count old and new */
3043                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3044                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3045
3046                 /* there MUST be both old and new values */
3047                 assert( o != 0 );
3048                 assert( n != 0 );
3049                 j = 0;
3050
3051                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3052                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3053
3054                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3055                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3056
3057                 nn = n; no = o;
3058
3059                 for ( i=0; i<o; i++ ) {
3060                         for ( j=0; j<n; j++ ) {
3061                                 if ( !adds[j] )
3062                                         continue;
3063                                 if ( bvmatch( dels[i], adds[j] ) ) {
3064                                         no--;
3065                                         nn--;
3066                                         adds[j] = NULL;
3067                                         dels[i] = NULL;
3068                                         break;
3069                                 }
3070                         }
3071                 }
3072
3073                 /* Don't delete/add an objectClass, always use the replace op.
3074                  * Modify would fail if provider has replaced entry with a new,
3075                  * and the new explicitly includes a superior of a class that was
3076                  * only included implicitly in the old entry.  Ref ITS#5517.
3077                  *
3078                  * Also use replace op if attr has no equality matching rule.
3079                  * (ITS#5781)
3080                  */
3081                 if ( nn && no < o &&
3082                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3083                          !old->a_desc->ad_type->sat_equality ))
3084                         no = o;
3085
3086                 i = j;
3087                 /* all old values were deleted, just use the replace op */
3088                 if ( no == o ) {
3089                         i = j-1;
3090                 } else if ( no ) {
3091                 /* delete some values */
3092                         mod = ch_malloc( sizeof( Modifications ) );
3093                         mod->sml_op = LDAP_MOD_DELETE;
3094                         mod->sml_flags = 0;
3095                         mod->sml_desc = old->a_desc;
3096                         mod->sml_type = mod->sml_desc->ad_cname;
3097                         mod->sml_numvals = no;
3098                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3099                         if ( old->a_vals != old->a_nvals ) {
3100                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3101                         } else {
3102                                 mod->sml_nvalues = NULL;
3103                         }
3104                         j = 0;
3105                         for ( i = 0; i < o; i++ ) {
3106                                 if ( !dels[i] ) continue;
3107                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3108                                 if ( mod->sml_nvalues ) {
3109                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3110                                 }
3111                                 j++;
3112                         }
3113                         BER_BVZERO( &mod->sml_values[j] );
3114                         if ( mod->sml_nvalues ) {
3115                                 BER_BVZERO( &mod->sml_nvalues[j] );
3116                         }
3117                         *modtail = mod;
3118                         modtail = &mod->sml_next;
3119                         i = j;
3120                 }
3121                 op->o_tmpfree( dels, op->o_tmpmemctx );
3122                 /* some values were added */
3123                 if ( nn && no < o ) {
3124                         mod = ch_malloc( sizeof( Modifications ) );
3125                         mod->sml_op = LDAP_MOD_ADD;
3126                         mod->sml_flags = 0;
3127                         mod->sml_desc = old->a_desc;
3128                         mod->sml_type = mod->sml_desc->ad_cname;
3129                         mod->sml_numvals = nn;
3130                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3131                         if ( old->a_vals != old->a_nvals ) {
3132                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3133                         } else {
3134                                 mod->sml_nvalues = NULL;
3135                         }
3136                         j = 0;
3137                         for ( i = 0; i < n; i++ ) {
3138                                 if ( !adds[i] ) continue;
3139                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3140                                 if ( mod->sml_nvalues ) {
3141                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3142                                 }
3143                                 j++;
3144                         }
3145                         BER_BVZERO( &mod->sml_values[j] );
3146                         if ( mod->sml_nvalues ) {
3147                                 BER_BVZERO( &mod->sml_nvalues[j] );
3148                         }
3149                         *modtail = mod;
3150                         modtail = &mod->sml_next;
3151                         i = j;
3152                 }
3153                 op->o_tmpfree( adds, op->o_tmpmemctx );
3154         } else {
3155                 /* new attr, just use the new mod */
3156                 i = 0;
3157                 j = 1;
3158         }
3159         /* advance to next element */
3160         mod = **mcur;
3161         if ( mod ) {
3162                 if ( i != j ) {
3163                         **mcur = mod->sml_next;
3164                         *modtail = mod;
3165                         modtail = &mod->sml_next;
3166                 } else {
3167                         *mcur = &mod->sml_next;
3168                 }
3169         }
3170         *mret = modtail;
3171 }
3172
3173 static int
3174 dn_callback(
3175         Operation*      op,
3176         SlapReply*      rs )
3177 {
3178         dninfo *dni = op->o_callback->sc_private;
3179
3180         if ( rs->sr_type == REP_SEARCH ) {
3181                 if ( !BER_BVISNULL( &dni->dn ) ) {
3182                         Debug( LDAP_DEBUG_ANY,
3183                                 "dn_callback : consistency error - "
3184                                 "entryUUID is not unique\n", 0, 0, 0 );
3185                 } else {
3186                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3187                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3188                         /* If there is a new entry, see if it differs from the old.
3189                          * We compare the non-normalized values so that cosmetic changes
3190                          * in the provider are always propagated.
3191                          */
3192                         if ( dni->new_entry ) {
3193                                 Modifications **modtail, **ml;
3194                                 Attribute *old, *new;
3195                                 struct berval old_rdn, new_rdn;
3196                                 struct berval old_p, new_p;
3197                                 int is_ctx, new_sup = 0;
3198
3199                                 /* If old entry is not a glue entry, make sure new entry
3200                                  * is actually newer than old entry
3201                                  */
3202                                 if ( !is_entry_glue( rs->sr_entry )) {
3203                                         old = attr_find( rs->sr_entry->e_attrs,
3204                                                 slap_schema.si_ad_objectClass );
3205                                         old = attr_find( rs->sr_entry->e_attrs,
3206                                                 slap_schema.si_ad_entryCSN );
3207                                         new = attr_find( dni->new_entry->e_attrs,
3208                                                 slap_schema.si_ad_entryCSN );
3209                                         if ( new && old ) {
3210                                                 int rc;
3211                                                 ber_len_t len = old->a_vals[0].bv_len;
3212                                                 if ( len > new->a_vals[0].bv_len )
3213                                                         len = new->a_vals[0].bv_len;
3214                                                 rc = memcmp( old->a_vals[0].bv_val,
3215                                                         new->a_vals[0].bv_val, len );
3216                                                 if ( rc > 0 ) {
3217                                                         Debug( LDAP_DEBUG_SYNC,
3218                                                                 "dn_callback : new entry is older than ours "
3219                                                                 "%s ours %s, new %s\n",
3220                                                                 rs->sr_entry->e_name.bv_val,
3221                                                                 old->a_vals[0].bv_val,
3222                                                                 new->a_vals[0].bv_val );
3223                                                         return LDAP_SUCCESS;
3224                                                 } else if ( rc == 0 ) {
3225                                                         Debug( LDAP_DEBUG_SYNC,
3226                                                                 "dn_callback : entries have identical CSN "
3227                                                                 "%s %s\n",
3228                                                                 rs->sr_entry->e_name.bv_val,
3229                                                                 old->a_vals[0].bv_val, 0 );
3230                                                         return LDAP_SUCCESS;
3231                                                 }
3232                                         }
3233                                 }
3234
3235                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3236                                         &op->o_bd->be_nsuffix[0] );
3237
3238                                 /* Did the DN change?
3239                                  * case changes in the parent are ignored,
3240                                  * we only want to know if the RDN was
3241                                  * actually changed.
3242                                  */
3243                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3244                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3245                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3246                                 dnParent( &dni->new_entry->e_nname, &new_p );
3247
3248                                 new_sup = !dn_match( &old_p, &new_p );
3249                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3250                                 {
3251                                         struct berval oldRDN, oldVal;
3252                                         AttributeDescription *ad = NULL;
3253                                         int oldpos, newpos;
3254                                         Attribute *a;
3255
3256                                         dni->renamed = 1;
3257                                         if ( new_sup )
3258                                                 dni->nnewSup = new_p;
3259
3260                                         /* See if the oldRDN was deleted */
3261                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3262                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3263                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3264                                                 oldRDN.bv_val );
3265                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3266                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3267                                         dni->oldDesc = ad;
3268                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3269                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3270                                         dni->oldNattr = a;
3271                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3272                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3273                                         if ( !a || oldpos != newpos || attr_valfind( a,
3274                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3275                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3276                                                 SLAP_MR_VALUE_OF_SYNTAX,
3277                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3278                                         {
3279                                                 dni->delOldRDN = 1;
3280                                         }
3281                                         /* Get the newRDN's desc */
3282                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3283                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3284                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3285                                         ad = NULL;
3286                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3287                                         dni->newDesc = ad;
3288
3289                                         /* A ModDN has happened, but in Refresh mode other
3290                                          * changes may have occurred before we picked it up.
3291                                          * So fallthru to regular Modify processing.
3292                                          */
3293                                 }
3294
3295                                 modtail = &dni->mods;
3296                                 ml = dni->modlist;
3297
3298                                 /* We assume that attributes are saved in the same order
3299                                  * in the remote and local databases. So if we walk through
3300                                  * the attributeDescriptions one by one they should match in
3301                                  * lock step. If not, look for an add or delete.
3302                                  */
3303                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3304                                                 old && new; )
3305                                 {
3306                                         /* If we've seen this before, use its mod now */
3307                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3308                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3309                                                 new = new->a_next;
3310                                                 continue;
3311                                         }
3312                                         /* Skip contextCSN */
3313                                         if ( is_ctx && old->a_desc ==
3314                                                 slap_schema.si_ad_contextCSN ) {
3315                                                 old = old->a_next;
3316                                                 continue;
3317                                         }
3318
3319                                         if ( old->a_desc != new->a_desc ) {
3320                                                 Modifications *mod;
3321                                                 Attribute *tmp;
3322
3323                                                 /* If it's just been re-added later,
3324                                                  * remember that we've seen it.
3325                                                  */
3326                                                 tmp = attr_find( new, old->a_desc );
3327                                                 if ( tmp ) {
3328                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3329                                                 } else {
3330                                                         /* If it's a new attribute, pull it in.
3331                                                          */
3332                                                         tmp = attr_find( old, new->a_desc );
3333                                                         if ( !tmp ) {
3334                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3335                                                                 new = new->a_next;
3336                                                                 continue;
3337                                                         }
3338                                                         /* Delete old attr */
3339                                                         mod = ch_malloc( sizeof( Modifications ) );
3340                                                         mod->sml_op = LDAP_MOD_DELETE;
3341                                                         mod->sml_flags = 0;
3342                                                         mod->sml_desc = old->a_desc;
3343                                                         mod->sml_type = mod->sml_desc->ad_cname;
3344                                                         mod->sml_numvals = 0;
3345                                                         mod->sml_values = NULL;
3346                                                         mod->sml_nvalues = NULL;
3347                                                         *modtail = mod;
3348                                                         modtail = &mod->sml_next;
3349                                                 }
3350                                                 old = old->a_next;
3351                                                 continue;
3352                                         }
3353                                         /* kludge - always update modifiersName so that it
3354                                          * stays co-located with the other mod opattrs. But only
3355                                          * if we know there are other valid mods.
3356                                          */
3357                                         if ( dni->mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3358                                                 old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3359                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3360                                         else
3361                                                 attr_cmp( op, old, new, &modtail, &ml );
3362                                         new = new->a_next;
3363                                         old = old->a_next;
3364                                 }
3365                                 *modtail = *ml;
3366                                 *ml = NULL;
3367                         }
3368                 }
3369         } else if ( rs->sr_type == REP_RESULT ) {
3370                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3371                         Debug( LDAP_DEBUG_ANY,
3372                                 "dn_callback : consistency error - "
3373                                 "entryUUID is not unique\n", 0, 0, 0 );
3374                 }
3375         }
3376
3377         return LDAP_SUCCESS;
3378 }
3379
3380 static int
3381 nonpresent_callback(
3382         Operation*      op,
3383         SlapReply*      rs )
3384 {
3385         syncinfo_t *si = op->o_callback->sc_private;
3386         Attribute *a;
3387         int count = 0;
3388         struct berval* present_uuid = NULL;
3389         struct nonpresent_entry *np_entry;
3390
3391         if ( rs->sr_type == REP_RESULT ) {
3392                 count = avl_free( si->si_presentlist, ch_free );
3393                 si->si_presentlist = NULL;
3394
3395         } else if ( rs->sr_type == REP_SEARCH ) {
3396                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3397                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3398
3399                         if ( a ) {
3400                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3401                                         syncuuid_cmp );
3402                         }
3403
3404                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3405                                 char buf[sizeof("rid=999 non")];
3406
3407                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3408                                         present_uuid ? "" : "non" );
3409
3410                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3411                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3412                         }
3413
3414                         if ( a == NULL ) return 0;
3415                 }
3416
3417                 if ( present_uuid == NULL ) {
3418                         np_entry = (struct nonpresent_entry *)
3419                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3420                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3421                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3422                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3423
3424                 } else {
3425                         avl_delete( &si->si_presentlist,
3426                                 &a->a_nvals[0], syncuuid_cmp );
3427                         ch_free( present_uuid );
3428                 }
3429         }
3430         return LDAP_SUCCESS;
3431 }
3432
3433 static int
3434 null_callback(
3435         Operation*      op,
3436         SlapReply*      rs )
3437 {
3438         if ( rs->sr_err != LDAP_SUCCESS &&
3439                 rs->sr_err != LDAP_REFERRAL &&
3440                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3441                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3442                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3443         {
3444                 Debug( LDAP_DEBUG_ANY,
3445                         "null_callback : error code 0x%x\n",
3446                         rs->sr_err, 0, 0 );
3447         }
3448         return LDAP_SUCCESS;
3449 }
3450
3451 static struct berval *
3452 slap_uuidstr_from_normalized(
3453         struct berval* uuidstr,
3454         struct berval* normalized,
3455         void *ctx )
3456 {
3457 #if 0
3458         struct berval *new;
3459         unsigned char nibble;
3460         int i, d = 0;
3461
3462         if ( normalized == NULL ) return NULL;
3463         if ( normalized->bv_len != 16 ) return NULL;
3464
3465         if ( uuidstr ) {
3466                 new = uuidstr;
3467         } else {
3468                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3469                 if ( new == NULL ) {
3470                         return NULL;
3471                 }
3472         }
3473
3474         new->bv_len = 36;
3475
3476         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3477                 if ( new != uuidstr ) {
3478                         slap_sl_free( new, ctx );
3479                 }
3480                 return NULL;
3481         }
3482
3483         for ( i = 0; i < 16; i++ ) {
3484                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3485                         new->bv_val[(i<<1)+d] = '-';
3486                         d += 1;
3487                 }
3488
3489                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3490                 if ( nibble < 10 ) {
3491                         new->bv_val[(i<<1)+d] = nibble + '0';
3492                 } else {
3493                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3494                 }
3495
3496                 nibble = (normalized->bv_val[i]) & 0xF;
3497                 if ( nibble < 10 ) {
3498                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3499                 } else {
3500                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3501                 }
3502         }
3503
3504         new->bv_val[new->bv_len] = '\0';
3505         return new;
3506 #endif
3507
3508         struct berval   *new;
3509         int             rc = 0;
3510
3511         if ( normalized == NULL ) return NULL;
3512         if ( normalized->bv_len != 16 ) return NULL;
3513
3514         if ( uuidstr ) {
3515                 new = uuidstr;
3516
3517         } else {
3518                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3519                 if ( new == NULL ) {
3520                         return NULL;
3521                 }
3522         }
3523
3524         new->bv_len = 36;
3525
3526         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3527                 rc = 1;
3528                 goto done;
3529         }
3530
3531         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3532                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3533
3534 done:;
3535         if ( rc == -1 ) {
3536                 if ( new != NULL ) {
3537                         if ( new->bv_val != NULL ) {
3538                                 slap_sl_free( new->bv_val, ctx );
3539                         }
3540
3541                         if ( new != uuidstr ) {
3542                                 slap_sl_free( new, ctx );
3543                         }
3544                 }
3545                 new = NULL;
3546
3547         } else {
3548                 new->bv_len = rc;
3549         }
3550
3551         return new;
3552 }
3553
3554 static int
3555 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3556 {
3557         const struct berval *uuid1 = v_uuid1;
3558         const struct berval *uuid2 = v_uuid2;
3559         int rc = uuid1->bv_len - uuid2->bv_len;
3560         if ( rc ) return rc;
3561         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3562 }
3563
3564 void
3565 syncinfo_free( syncinfo_t *sie, int free_all )
3566 {
3567         syncinfo_t *si_next;
3568
3569         if ( free_all && sie->si_cookieState ) {
3570                 ch_free( sie->si_cookieState->cs_sids );
3571                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3572                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3573                 ch_free( sie->si_cookieState );
3574         }
3575         do {
3576                 si_next = sie->si_next;
3577
3578                 if ( sie->si_ld ) {
3579                         if ( sie->si_conn ) {
3580                                 connection_client_stop( sie->si_conn );
3581                                 sie->si_conn = NULL;
3582                         }
3583                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3584                 }
3585
3586                 /* re-fetch it, in case it was already removed */
3587                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3588                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3589                 if ( sie->si_re ) {
3590                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3591                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3592                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3593                 }
3594
3595                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3596                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3597
3598                 bindconf_free( &sie->si_bindconf );
3599
3600                 if ( sie->si_filterstr.bv_val ) {
3601                         ch_free( sie->si_filterstr.bv_val );
3602                 }
3603                 if ( sie->si_logfilterstr.bv_val ) {
3604                         ch_free( sie->si_logfilterstr.bv_val );
3605                 }
3606                 if ( sie->si_base.bv_val ) {
3607                         ch_free( sie->si_base.bv_val );
3608                 }
3609                 if ( sie->si_logbase.bv_val ) {
3610                         ch_free( sie->si_logbase.bv_val );
3611                 }
3612                 if ( sie->si_attrs ) {
3613                         int i = 0;
3614                         while ( sie->si_attrs[i] != NULL ) {
3615                                 ch_free( sie->si_attrs[i] );
3616                                 i++;
3617                         }
3618                         ch_free( sie->si_attrs );
3619                 }
3620                 if ( sie->si_exattrs ) {
3621                         int i = 0;
3622                         while ( sie->si_exattrs[i] != NULL ) {
3623                                 ch_free( sie->si_exattrs[i] );
3624                                 i++;
3625                         }
3626                         ch_free( sie->si_exattrs );
3627                 }
3628                 if ( sie->si_anlist ) {
3629                         int i = 0;
3630                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3631                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3632                                 i++;
3633                         }
3634                         ch_free( sie->si_anlist );
3635                 }
3636                 if ( sie->si_exanlist ) {
3637                         int i = 0;
3638                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3639                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3640                                 i++;
3641                         }
3642                         ch_free( sie->si_exanlist );
3643                 }
3644                 if ( sie->si_retryinterval ) {
3645                         ch_free( sie->si_retryinterval );
3646                 }
3647                 if ( sie->si_retrynum ) {
3648                         ch_free( sie->si_retrynum );
3649                 }
3650                 if ( sie->si_retrynum_init ) {
3651                         ch_free( sie->si_retrynum_init );
3652                 }
3653                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3654                 if ( sie->si_presentlist ) {
3655                     avl_free( sie->si_presentlist, ch_free );
3656                 }
3657                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3658                         struct nonpresent_entry* npe;
3659                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3660                         LDAP_LIST_REMOVE( npe, npe_link );
3661                         if ( npe->npe_name ) {
3662                                 if ( npe->npe_name->bv_val ) {
3663                                         ch_free( npe->npe_name->bv_val );
3664                                 }
3665                                 ch_free( npe->npe_name );
3666                         }
3667                         if ( npe->npe_nname ) {
3668                                 if ( npe->npe_nname->bv_val ) {
3669                                         ch_free( npe->npe_nname->bv_val );
3670                                 }
3671                                 ch_free( npe->npe_nname );
3672                         }
3673                         ch_free( npe );
3674                 }
3675                 ch_free( sie );
3676                 sie = si_next;
3677         } while ( free_all && si_next );
3678 }
3679
3680
3681
3682 /* NOTE: used & documented in slapd.conf(5) */
3683 #define IDSTR                   "rid"
3684 #define PROVIDERSTR             "provider"
3685 #define SCHEMASTR               "schemachecking"
3686 #define FILTERSTR               "filter"
3687 #define SEARCHBASESTR           "searchbase"
3688 #define SCOPESTR                "scope"
3689 #define ATTRSONLYSTR            "attrsonly"
3690 #define ATTRSSTR                "attrs"
3691 #define TYPESTR                 "type"
3692 #define INTERVALSTR             "interval"
3693 #define RETRYSTR                "retry"
3694 #define SLIMITSTR               "sizelimit"
3695 #define TLIMITSTR               "timelimit"
3696 #define SYNCDATASTR             "syncdata"
3697 #define LOGBASESTR              "logbase"
3698 #define LOGFILTERSTR    "logfilter"
3699
3700 /* FIXME: undocumented */
3701 #define EXATTRSSTR              "exattrs"
3702 #define MANAGEDSAITSTR          "manageDSAit"
3703
3704 /* mandatory */
3705 enum {
3706         GOT_RID                 = 0x00000001U,
3707         GOT_PROVIDER            = 0x00000002U,
3708         GOT_SCHEMACHECKING      = 0x00000004U,
3709         GOT_FILTER              = 0x00000008U,
3710         GOT_SEARCHBASE          = 0x00000010U,
3711         GOT_SCOPE               = 0x00000020U,
3712         GOT_ATTRSONLY           = 0x00000040U,
3713         GOT_ATTRS               = 0x00000080U,
3714         GOT_TYPE                = 0x00000100U,
3715         GOT_INTERVAL            = 0x00000200U,
3716         GOT_RETRY               = 0x00000400U,
3717         GOT_SLIMIT              = 0x00000800U,
3718         GOT_TLIMIT              = 0x00001000U,
3719         GOT_SYNCDATA            = 0x00002000U,
3720         GOT_LOGBASE             = 0x00004000U,
3721         GOT_LOGFILTER           = 0x00008000U,
3722         GOT_EXATTRS             = 0x00010000U,
3723         GOT_MANAGEDSAIT         = 0x00020000U,
3724         GOT_BINDCONF            = 0x00040000U,
3725
3726 /* check */
3727         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3728 };
3729
3730 static struct {
3731         struct berval key;
3732         int val;
3733 } scopes[] = {
3734         { BER_BVC("base"), LDAP_SCOPE_BASE },
3735         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3736         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3737         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3738         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3739         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3740         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3741         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3742         { BER_BVNULL, 0 }
3743 };
3744
3745 static slap_verbmasks datamodes[] = {
3746         { BER_BVC("default"), SYNCDATA_DEFAULT },
3747         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3748         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3749         { BER_BVNULL, 0 }
3750 };
3751
3752 static int
3753 parse_syncrepl_retry(
3754         ConfigArgs      *c,
3755         char            *arg,
3756         syncinfo_t      *si )
3757 {
3758         char **retry_list;
3759         int j, k, n;
3760         int use_default = 0;
3761
3762         char *val = arg + STRLENOF( RETRYSTR "=" );
3763         if ( strcasecmp( val, "undefined" ) == 0 ) {
3764                 val = "3600 +";
3765                 use_default = 1;
3766         }
3767
3768         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3769         retry_list[0] = NULL;
3770
3771         slap_str2clist( &retry_list, val, " ,\t" );
3772
3773         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3774         n = k / 2;
3775         if ( k % 2 ) {
3776                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3777                         "Error: incomplete syncrepl retry list" );
3778                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3779                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3780                         ch_free( retry_list[k] );
3781                 }
3782                 ch_free( retry_list );
3783                 return 1;
3784         }
3785         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3786         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3787         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3788         for ( j = 0; j < n; j++ ) {
3789                 unsigned long   t;
3790                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3791                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3792                                 "Error: invalid retry interval \"%s\" (#%d)",
3793                                 retry_list[j*2], j );
3794                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3795                         /* do some cleanup */
3796                         return 1;
3797                 }
3798                 si->si_retryinterval[j] = (time_t)t;
3799                 if ( *retry_list[j*2+1] == '+' ) {
3800                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3801                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3802                         j++;
3803                         break;
3804                 } else {
3805                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3806                                         || si->si_retrynum_init[j] <= 0 )
3807                         {
3808                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3809                                         "Error: invalid initial retry number \"%s\" (#%d)",
3810                                         retry_list[j*2+1], j );
3811                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3812                                 /* do some cleanup */
3813                                 return 1;
3814                         }
3815                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3816                                         || si->si_retrynum[j] <= 0 )
3817                         {
3818                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3819                                         "Error: invalid retry number \"%s\" (#%d)",
3820                                         retry_list[j*2+1], j );
3821                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3822                                 /* do some cleanup */
3823                                 return 1;
3824                         }
3825                 }
3826         }
3827         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3828         si->si_retrynum[j] = RETRYNUM_TAIL;
3829         si->si_retryinterval[j] = 0;
3830
3831         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3832                 ch_free( retry_list[k] );
3833         }
3834         ch_free( retry_list );
3835         if ( !use_default ) {
3836                 si->si_got |= GOT_RETRY;
3837         }
3838
3839         return 0;
3840 }
3841
3842 static int
3843 parse_syncrepl_line(
3844         ConfigArgs      *c,
3845         syncinfo_t      *si )
3846 {
3847         int     i;
3848         char    *val;
3849
3850         for ( i = 1; i < c->argc; i++ ) {
3851                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3852                                         STRLENOF( IDSTR "=" ) ) )
3853                 {
3854                         int tmp;
3855                         /* '\0' string terminator accounts for '=' */
3856                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3857                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3858                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3859                                         "Error: parse_syncrepl_line: "
3860                                         "unable to parse syncrepl id \"%s\"", val );
3861                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3862                                 return -1;
3863                         }
3864                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3865                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3866                                         "Error: parse_syncrepl_line: "
3867                                         "syncrepl id %d is out of range [0..4095]", tmp );
3868                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3869                                 return -1;
3870                         }
3871                         si->si_rid = tmp;
3872                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3873                         si->si_got |= GOT_RID;
3874                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3875                                         STRLENOF( PROVIDERSTR "=" ) ) )
3876                 {
3877                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3878                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3879                         si->si_got |= GOT_PROVIDER;
3880                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3881                                         STRLENOF( SCHEMASTR "=" ) ) )
3882                 {
3883                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3884                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3885                                 si->si_schemachecking = 1;
3886                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3887                                 si->si_schemachecking = 0;
3888                         } else {
3889                                 si->si_schemachecking = 1;
3890                         }
3891                         si->si_got |= GOT_SCHEMACHECKING;
3892                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3893                                         STRLENOF( FILTERSTR "=" ) ) )
3894                 {
3895                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3896                         if ( si->si_filterstr.bv_val )
3897                                 ch_free( si->si_filterstr.bv_val );
3898                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3899                         si->si_got |= GOT_FILTER;
3900                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3901                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3902                 {
3903                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3904                         if ( si->si_logfilterstr.bv_val )
3905                                 ch_free( si->si_logfilterstr.bv_val );
3906                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3907                         si->si_got |= GOT_LOGFILTER;
3908                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3909                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3910                 {
3911                         struct berval   bv;
3912                         int             rc;
3913
3914                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3915                         if ( si->si_base.bv_val ) {
3916                                 ch_free( si->si_base.bv_val );
3917                         }
3918                         ber_str2bv( val, 0, 0, &bv );
3919                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3920                         if ( rc != LDAP_SUCCESS ) {
3921                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3922                                         "Invalid base DN \"%s\": %d (%s)",
3923                                         val, rc, ldap_err2string( rc ) );
3924                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3925                                 return -1;
3926                         }
3927                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3928                                 ch_free( si->si_base.bv_val );
3929                                 BER_BVZERO( &si->si_base );
3930                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3931                                         "Base DN \"%s\" is not within the database naming context",
3932                                         val );
3933                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3934                                 return -1;
3935                         }
3936                         si->si_got |= GOT_SEARCHBASE;
3937                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3938                                         STRLENOF( LOGBASESTR "=" ) ) )
3939                 {
3940                         struct berval   bv;
3941                         int             rc;
3942
3943                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3944                         if ( si->si_logbase.bv_val ) {
3945                                 ch_free( si->si_logbase.bv_val );
3946                         }
3947                         ber_str2bv( val, 0, 0, &bv );
3948                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3949                         if ( rc != LDAP_SUCCESS ) {
3950                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3951                                         "Invalid logbase DN \"%s\": %d (%s)",
3952                                         val, rc, ldap_err2string( rc ) );
3953                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3954                                 return -1;
3955                         }
3956                         si->si_got |= GOT_LOGBASE;
3957                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3958                                         STRLENOF( SCOPESTR "=" ) ) )
3959                 {
3960                         int j;
3961                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3962                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3963                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3964                                         si->si_scope = scopes[j].val;
3965                                         break;
3966                                 }
3967                         }
3968                         if ( BER_BVISNULL(&scopes[j].key) ) {
3969                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3970                                         "Error: parse_syncrepl_line: "
3971                                         "unknown scope \"%s\"", val);
3972                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3973                                 return -1;
3974                         }
3975                         si->si_got |= GOT_SCOPE;
3976                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3977                                         STRLENOF( ATTRSONLYSTR ) ) )
3978                 {
3979                         si->si_attrsonly = 1;
3980                         si->si_got |= GOT_ATTRSONLY;
3981                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3982                                         STRLENOF( ATTRSSTR "=" ) ) )
3983                 {
3984                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3985                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3986                                 char *attr_fname;
3987                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3988                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3989                                 if ( si->si_anlist == NULL ) {
3990                                         ch_free( attr_fname );
3991                                         return -1;
3992                                 }
3993                                 si->si_anfile = attr_fname;
3994                         } else {
3995                                 char *str, *s, *next;
3996                                 const char *delimstr = " ,\t";
3997                                 str = ch_strdup( val );
3998                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3999                                                 s != NULL;
4000                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
4001                                 {
4002                                         if ( strlen(s) == 1 && *s == '*' ) {
4003                                                 si->si_allattrs = 1;
4004                                                 val[ s - str ] = delimstr[0];
4005                                         }
4006                                         if ( strlen(s) == 1 && *s == '+' ) {
4007                                                 si->si_allopattrs = 1;
4008                                                 val [ s - str ] = delimstr[0];
4009                                         }
4010                                 }
4011                                 ch_free( str );
4012                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4013                                 if ( si->si_anlist == NULL ) {
4014                                         return -1;
4015                                 }
4016                         }
4017                         si->si_got |= GOT_ATTRS;
4018                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4019                                         STRLENOF( EXATTRSSTR "=" ) ) )
4020                 {
4021                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4022                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4023                                 char *attr_fname;
4024                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4025                                 si->si_exanlist = file2anlist(
4026                                         si->si_exanlist, attr_fname, " ,\t" );
4027                                 if ( si->si_exanlist == NULL ) {
4028                                         ch_free( attr_fname );
4029                                         return -1;
4030                                 }
4031                                 ch_free( attr_fname );
4032                         } else {
4033                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4034                                 if ( si->si_exanlist == NULL ) {
4035                                         return -1;
4036                                 }
4037                         }
4038                         si->si_got |= GOT_EXATTRS;
4039                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4040                                         STRLENOF( TYPESTR "=" ) ) )
4041                 {
4042                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4043                         if ( !strncasecmp( val, "refreshOnly",
4044                                                 STRLENOF("refreshOnly") ) )
4045                         {
4046                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4047                         } else if ( !strncasecmp( val, "refreshAndPersist",
4048                                                 STRLENOF("refreshAndPersist") ) )
4049                         {
4050                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4051                                 si->si_interval = 60;
4052                         } else {
4053                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4054                                         "Error: parse_syncrepl_line: "
4055                                         "unknown sync type \"%s\"", val);
4056                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4057                                 return -1;
4058                         }
4059                         si->si_got |= GOT_TYPE;
4060                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4061                                         STRLENOF( INTERVALSTR "=" ) ) )
4062                 {
4063                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4064                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4065                                 si->si_interval = 0;
4066                         } else if ( strchr( val, ':' ) != NULL ) {
4067                                 char *next, *ptr = val;
4068                                 int dd, hh, mm, ss;
4069
4070                                 dd = strtol( ptr, &next, 10 );
4071                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4072                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4073                                                 "Error: parse_syncrepl_line: "
4074                                                 "invalid interval \"%s\", unable to parse days", val );
4075                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4076                                         return -1;
4077                                 }
4078                                 ptr = next + 1;
4079                                 hh = strtol( ptr, &next, 10 );
4080                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4081                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4082                                                 "Error: parse_syncrepl_line: "
4083                                                 "invalid interval \"%s\", unable to parse hours", val );
4084                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4085                                         return -1;
4086                                 }
4087                                 ptr = next + 1;
4088                                 mm = strtol( ptr, &next, 10 );
4089                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4090                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4091                                                 "Error: parse_syncrepl_line: "
4092                                                 "invalid interval \"%s\", unable to parse minutes", val );
4093                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4094                                         return -1;
4095                                 }
4096                                 ptr = next + 1;
4097                                 ss = strtol( ptr, &next, 10 );
4098                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4099                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4100                                                 "Error: parse_syncrepl_line: "
4101                                                 "invalid interval \"%s\", unable to parse seconds", val );
4102                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4103                                         return -1;
4104                                 }
4105                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4106                         } else {
4107                                 unsigned long   t;
4108
4109                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4110                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4111                                                 "Error: parse_syncrepl_line: "
4112                                                 "invalid interval \"%s\"", val );
4113                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4114                                         return -1;
4115                                 }
4116                                 si->si_interval = (time_t)t;
4117                         }
4118                         if ( si->si_interval < 0 ) {
4119                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4120                                         "Error: parse_syncrepl_line: "
4121                                         "invalid interval \"%ld\"",
4122                                         (long) si->si_interval);
4123                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4124                                 return -1;
4125                         }
4126                         si->si_got |= GOT_INTERVAL;
4127                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4128                                         STRLENOF( RETRYSTR "=" ) ) )
4129                 {
4130                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4131                                 return 1;
4132                         }
4133                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4134                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4135                 {
4136                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4137                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4138                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4139                         {
4140                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4141                                         "invalid manageDSAit value \"%s\".\n",
4142                                         val );
4143                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4144                                 return 1;
4145                         }
4146                         si->si_got |= GOT_MANAGEDSAIT;
4147                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4148                                         STRLENOF( SLIMITSTR "=") ) )
4149                 {
4150                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4151                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4152                                 si->si_slimit = 0;
4153
4154                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4155                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4156                                         "invalid size limit value \"%s\".\n",
4157                                         val );
4158                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4159                                 return 1;
4160                         }
4161                         si->si_got |= GOT_SLIMIT;
4162                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4163                                         STRLENOF( TLIMITSTR "=" ) ) )
4164                 {
4165                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4166                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4167                                 si->si_tlimit = 0;
4168
4169                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4170                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4171                                         "invalid time limit value \"%s\".\n",
4172                                         val );
4173                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4174                                 return 1;
4175                         }
4176                         si->si_got |= GOT_TLIMIT;
4177                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4178                                         STRLENOF( SYNCDATASTR "=" ) ) )
4179                 {
4180                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4181                         si->si_syncdata = verb_to_mask( val, datamodes );
4182                         si->si_got |= GOT_SYNCDATA;
4183                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4184                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4185                                 "Error: parse_syncrepl_line: "
4186                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4187                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4188                         return -1;
4189                 }
4190                 si->si_got |= GOT_BINDCONF;
4191         }
4192
4193         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4194                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4195                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4196                         si->si_got & GOT_RID ? "" : " "IDSTR,
4197                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4198                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4199                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4200                 return -1;
4201         }
4202
4203         if ( !( si->si_got & GOT_RETRY ) ) {
4204                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4205                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4206                 if ( si->si_retryinterval == NULL ) {
4207                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4208                                 return 1;
4209                         }
4210                 }
4211         }
4212
4213         return 0;
4214 }
4215
4216 static int
4217 add_syncrepl(
4218         ConfigArgs *c )
4219 {
4220         syncinfo_t *si;
4221         int     rc = 0;
4222
4223         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4224                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4225                         "operations required for syncrepl", c->be->be_type );
4226                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4227                 return 1;
4228         }
4229         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4230                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4231                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4232                 return 1;
4233         }
4234         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4235
4236         if ( si == NULL ) {
4237                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4238                 return 1;
4239         }
4240
4241         si->si_bindconf.sb_tls = SB_TLS_OFF;
4242         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4243         si->si_schemachecking = 0;
4244         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4245                 &si->si_filterstr );
4246         si->si_base.bv_val = NULL;
4247         si->si_scope = LDAP_SCOPE_SUBTREE;
4248         si->si_attrsonly = 0;
4249         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4250         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4251         si->si_attrs = NULL;
4252         si->si_allattrs = 0;
4253         si->si_allopattrs = 0;
4254         si->si_exattrs = NULL;
4255         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4256         si->si_interval = 86400;
4257         si->si_retryinterval = NULL;
4258         si->si_retrynum_init = NULL;
4259         si->si_retrynum = NULL;
4260         si->si_manageDSAit = 0;
4261         si->si_tlimit = 0;
4262         si->si_slimit = 0;
4263
4264         si->si_presentlist = NULL;
4265         LDAP_LIST_INIT( &si->si_nonpresentlist );
4266         ldap_pvt_thread_mutex_init( &si->si_mutex );
4267
4268         rc = parse_syncrepl_line( c, si );
4269
4270         if ( rc == 0 ) {
4271                 /* Must be LDAPv3 because we need controls */
4272                 switch ( si->si_bindconf.sb_version ) {
4273                 case 0:
4274                         /* not explicitly set */
4275                         si->si_bindconf.sb_version = LDAP_VERSION3;
4276                         break;
4277                 case 3:
4278                         /* explicitly set */
4279                         break;
4280                 default:
4281                         Debug( LDAP_DEBUG_ANY,
4282                                 "version %d incompatible with syncrepl\n",
4283                                 si->si_bindconf.sb_version, 0, 0 );
4284                         syncinfo_free( si, 0 );
4285                         return 1;
4286                 }
4287
4288                 si->si_be = c->be;
4289                 if ( slapMode & SLAP_SERVER_MODE ) {
4290                         Listener **l = slapd_get_listeners();
4291                         int isMe = 0;
4292
4293                         /* check if URL points to current server. If so, ignore
4294                          * this configuration. We require an exact match. Just
4295                          * in case they really want to do this, they can vary
4296                          * the case of the URL to allow it.
4297                          */
4298                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4299                                 int i;
4300                                 for ( i=0; l[i]; i++ ) {
4301                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4302                                                 isMe = 1;
4303                                                 break;
4304                                         }
4305                                 }
4306                         }
4307
4308                         if ( !isMe ) {
4309                                 init_syncrepl( si );
4310                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4311                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4312                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4313                                         si->si_ridtxt );
4314                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4315                                 if ( si->si_re )
4316                                         rc = config_sync_shadow( c ) ? -1 : 0;
4317                                 else
4318                                         rc = -1;
4319                         }
4320                 } else {
4321                         /* mirrormode still needs to see this flag in tool mode */
4322                         rc = config_sync_shadow( c ) ? -1 : 0;
4323                 }
4324         }
4325
4326 #ifdef HAVE_TLS
4327         /* Use main slapd defaults */
4328         bindconf_tls_defaults( &si->si_bindconf );
4329 #endif
4330         if ( rc < 0 ) {
4331                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4332                 syncinfo_free( si, 0 );
4333                 return 1;
4334         } else {
4335                 Debug( LDAP_DEBUG_CONFIG,
4336                         "Config: ** successfully added syncrepl \"%s\"\n",
4337                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4338                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4339                 if ( c->be->be_syncinfo ) {
4340                         syncinfo_t *sip;
4341
4342                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4343
4344                         // add new syncrepl to end of list (same order as when deleting)
4345                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
4346                         sip->si_next = si;
4347                 } else {
4348                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4349                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4350
4351                         c->be->be_syncinfo = si;
4352                 }
4353
4354                 si->si_next = NULL;
4355
4356                 return 0;
4357         }
4358 }
4359
4360 static void
4361 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4362 {
4363         struct berval bc, uri;
4364         char buf[BUFSIZ*2], *ptr;
4365         ber_len_t len;
4366         int i;
4367 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4368
4369         BER_BVZERO( bv );
4370
4371         /* temporarily inhibit bindconf from printing URI */
4372         uri = si->si_bindconf.sb_uri;
4373         BER_BVZERO( &si->si_bindconf.sb_uri );
4374         si->si_bindconf.sb_version = 0;
4375         bindconf_unparse( &si->si_bindconf, &bc );
4376         si->si_bindconf.sb_uri = uri;
4377         si->si_bindconf.sb_version = LDAP_VERSION3;
4378
4379         ptr = buf;
4380         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4381         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4382                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4383         if ( len >= sizeof( buf ) ) return;
4384         ptr += len;
4385         if ( !BER_BVISNULL( &bc ) ) {
4386                 if ( WHATSLEFT <= bc.bv_len ) {
4387                         free( bc.bv_val );
4388                         return;
4389                 }
4390                 ptr = lutil_strcopy( ptr, bc.bv_val );
4391                 free( bc.bv_val );
4392         }
4393         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4394                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4395                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4396                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4397                 *ptr++ = '"';
4398         }
4399         if ( !BER_BVISNULL( &si->si_base ) ) {
4400                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4401                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4402                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4403                 *ptr++ = '"';
4404         }
4405         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4406                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4407                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4408                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4409                 *ptr++ = '"';
4410         }
4411         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4412                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4413                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4414                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4415                 *ptr++ = '"';
4416         }
4417         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4418                 if ( si->si_scope == scopes[i].val ) {
4419                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4420                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4421                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4422                         break;
4423                 }
4424         }
4425         if ( si->si_attrsonly ) {
4426                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4427                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4428         }
4429         if ( si->si_anfile ) {
4430                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4431                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4432                 ptr = lutil_strcopy( ptr, si->si_anfile );
4433                 *ptr++ = '"';
4434         } else if ( si->si_allattrs || si->si_allopattrs ||
4435                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4436         {
4437                 char *old;
4438
4439                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4440                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4441                 old = ptr;
4442                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4443                 if ( ptr == NULL ) return;
4444                 if ( si->si_allattrs ) {
4445                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4446                         if ( old != ptr ) *ptr++ = ',';
4447                         *ptr++ = '*';
4448                 }
4449                 if ( si->si_allopattrs ) {
4450                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4451                         if ( old != ptr ) *ptr++ = ',';
4452                         *ptr++ = '+';
4453                 }
4454                 *ptr++ = '"';
4455         }
4456         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4457                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4458                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4459                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4460                 if ( ptr == NULL ) return;
4461         }
4462         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4463         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4464         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4465
4466         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4467         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4468         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4469                 "refreshAndPersist" : "refreshOnly" );
4470
4471         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4472                 int dd, hh, mm, ss;
4473
4474                 dd = si->si_interval;
4475                 ss = dd % 60;
4476                 dd /= 60;
4477                 mm = dd % 60;
4478                 dd /= 60;
4479                 hh = dd % 24;
4480                 dd /= 24;
4481                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4482                         INTERVALSTR, dd, hh, mm, ss );
4483                 if ( len >= WHATSLEFT ) return;
4484                 ptr += len;
4485         }
4486
4487         if ( si->si_got & GOT_RETRY ) {
4488                 const char *space = "";
4489                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4490                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4491                 for (i=0; si->si_retryinterval[i]; i++) {
4492                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4493                                 (long) si->si_retryinterval[i] );
4494                         space = " ";
4495                         if ( WHATSLEFT - 1 <= len ) return;
4496                         ptr += len;
4497                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4498                                 *ptr++ = '+';
4499                         else {
4500                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4501                                 if ( WHATSLEFT <= len ) return;
4502                                 ptr += len;
4503                         }
4504                 }
4505                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4506                 *ptr++ = '"';
4507         } else {
4508                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4509         }
4510
4511         if ( si->si_slimit ) {
4512                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4513                 if ( WHATSLEFT <= len ) return;
4514                 ptr += len;
4515         }
4516
4517         if ( si->si_tlimit ) {
4518                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4519                 if ( WHATSLEFT <= len ) return;
4520                 ptr += len;
4521         }
4522
4523         if ( si->si_syncdata ) {
4524                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4525                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4526                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4527                         ptr = lutil_strcopy( ptr, bc.bv_val );
4528                 }
4529         }
4530         bc.bv_len = ptr - buf;
4531         bc.bv_val = buf;
4532         ber_dupbv( bv, &bc );
4533 }
4534
4535 int
4536 syncrepl_config( ConfigArgs *c )
4537 {
4538         if (c->op == SLAP_CONFIG_EMIT) {
4539                 if ( c->be->be_syncinfo ) {
4540                         struct berval bv;
4541                         syncinfo_t *si;
4542
4543                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4544                                 syncrepl_unparse( si, &bv );
4545                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4546                         }
4547                         return 0;
4548                 }
4549                 return 1;
4550         } else if ( c->op == LDAP_MOD_DELETE ) {
4551                 cookie_state *cs = NULL;
4552                 int isrunning = 0;
4553                 if ( c->be->be_syncinfo ) {
4554                         syncinfo_t *si, **sip;
4555                         int i;
4556
4557                         cs = c->be->be_syncinfo->si_cookieState;
4558                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4559                                 si = *sip;
4560                                 if ( c->valx == -1 || i == c->valx ) {
4561                                         *sip = si->si_next;
4562                                         /* If the task is currently active, we have to leave
4563                                          * it running. It will exit on its own. This will only
4564                                          * happen when running on the cn=config DB.
4565                                          */
4566                                         if ( si->si_re ) {
4567                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
4568                                                         isrunning = 1;
4569                                                 } else {
4570                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
4571                                                 }
4572                                         }
4573                                         if ( si->si_re && isrunning ) {
4574                                                 si->si_ctype = 0;
4575                                                 si->si_next = NULL;
4576                                         } else {
4577                                                 syncinfo_free( si, 0 );
4578                                         }
4579                                         if ( i == c->valx )
4580                                                 break;
4581                                 } else {
4582                                         sip = &si->si_next;
4583                                 }
4584                         }
4585                 }
4586                 if ( !c->be->be_syncinfo ) {
4587                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4588                         if ( cs && !isrunning ) {
4589                                 ch_free( cs->cs_sids );
4590                                 ber_bvarray_free( cs->cs_vals );
4591                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4592                                 ch_free( cs );
4593                         }
4594                 }
4595                 return 0;
4596         }
4597         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4598                 Debug(LDAP_DEBUG_ANY, "%s: "
4599                         "syncrepl: database already shadowed.\n",
4600                         c->log, 0, 0);
4601                 return(1);
4602         } else {
4603                 return add_syncrepl( c );
4604         }
4605 }