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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 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         ber_int_t       si_msgid;
 100         Avlnode                 *si_presentlist;
 101         LDAP                    *si_ld;
 102         Connection              *si_conn;
 103         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 104         ldap_pvt_thread_mutex_t si_mutex;
 105 } syncinfo_t;
 106
 107 static int syncuuid_cmp( const void *, const void * );
 108 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 109 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 110 static int syncrepl_message_to_op(
 111                                         syncinfo_t *, Operation *, LDAPMessage * );
 112 static int syncrepl_message_to_entry(
 113                                         syncinfo_t *, Operation *, LDAPMessage *,
 114                                         Modifications **, Entry **, int );
 115 static int syncrepl_entry(
 116                                         syncinfo_t *, Operation*, Entry*,
 117                                         Modifications**,int, struct berval*,
 118                                         struct berval *cookieCSN );
 119 static int syncrepl_updateCookie(
 120                                         syncinfo_t *, Operation *, struct berval *,
 121                                         struct sync_cookie * );
 122 static struct berval * slap_uuidstr_from_normalized(
 123                                         struct berval *, struct berval *, void * );
 124
 125 /* callback functions */
 126 static int dn_callback( Operation *, SlapReply * );
 127 static int nonpresent_callback( Operation *, SlapReply * );
 128 static int null_callback( Operation *, SlapReply * );
 129
 130 static AttributeDescription *sync_descs[4];
 131
 132 static const char *
 133 syncrepl_state2str( int state )
 134 {
 135         switch ( state ) {
 136         case LDAP_SYNC_PRESENT:
 137                 return "PRESENT";
 138
 139         case LDAP_SYNC_ADD:
 140                 return "ADD";
 141
 142         case LDAP_SYNC_MODIFY:
 143                 return "MODIFY";
 144
 145         case LDAP_SYNC_DELETE:
 146                 return "DELETE";
 147         }
 148
 149         return "UNKNOWN";
 150 }
 151
 152 static void
 153 init_syncrepl(syncinfo_t *si)
 154 {
 155         int i, j, k, l, n;
 156         char **attrs, **exattrs;
 157
 158         if ( !sync_descs[0] ) {
 159                 sync_descs[0] = slap_schema.si_ad_objectClass;
 160                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 161                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 162                 sync_descs[3] = NULL;
 163         }
 164
 165         if ( si->si_allattrs && si->si_allopattrs )
 166                 attrs = NULL;
 167         else
 168                 attrs = anlist2attrs( si->si_anlist );
 169
 170         if ( attrs ) {
 171                 if ( si->si_allattrs ) {
 172                         i = 0;
 173                         while ( attrs[i] ) {
 174                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 175                                         for ( j = i; attrs[j] != NULL; j++ ) {
 176                                                 if ( j == i )
 177                                                         ch_free( attrs[i] );
 178                                                 attrs[j] = attrs[j+1];
 179                                         }
 180                                 } else {
 181                                         i++;
 182                                 }
 183                         }
 184                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 185                         attrs[i] = ch_strdup("*");
 186                         attrs[i + 1] = NULL;
 187
 188                 } else if ( si->si_allopattrs ) {
 189                         i = 0;
 190                         while ( attrs[i] ) {
 191                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 192                                         for ( j = i; attrs[j] != NULL; j++ ) {
 193                                                 if ( j == i )
 194                                                         ch_free( attrs[i] );
 195                                                 attrs[j] = attrs[j+1];
 196                                         }
 197                                 } else {
 198                                         i++;
 199                                 }
 200                         }
 201                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 202                         attrs[i] = ch_strdup("+");
 203                         attrs[i + 1] = NULL;
 204                 }
 205
 206                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 207                         j = 0;
 208                         while ( attrs[j] ) {
 209                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 210                                         for ( k = j; attrs[k] != NULL; k++ ) {
 211                                                 if ( k == j )
 212                                                         ch_free( attrs[k] );
 213                                                 attrs[k] = attrs[k+1];
 214                                         }
 215                                 } else {
 216                                         j++;
 217                                 }
 218                         }
 219                 }
 220
 221                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 222
 223                 if ( si->si_allopattrs ) {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 225                 } else {
 226                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 227                 }
 228
 229                 /* Add Attributes */
 230                 if ( si->si_allopattrs ) {
 231                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 232                 } else {
 233                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 234                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 235                         }
 236                 }
 237                 attrs[ n ] = NULL;
 238
 239         } else {
 240
 241                 i = 0;
 242                 if ( si->si_allattrs == si->si_allopattrs ) {
 243                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 244                         attrs[i++] = ch_strdup( "*" );
 245                         attrs[i++] = ch_strdup( "+" );
 246                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 247                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 248                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 249                         attrs[i++] = ch_strdup( "*" );
 250                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 251                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 252                         }
 253                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 254                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 255                         attrs[i++] = ch_strdup( "+" );
 256                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 257                 }
 258                 attrs[i] = NULL;
 259         }
 260
 261         si->si_attrs = attrs;
 262
 263         exattrs = anlist2attrs( si->si_exanlist );
 264
 265         if ( exattrs ) {
 266                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 267
 268                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 269                         j = 0;
 270                         while ( exattrs[j] != NULL ) {
 271                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 272                                         ch_free( exattrs[j] );
 273                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 274                                                 exattrs[k] = exattrs[k+1];
 275                                         }
 276                                 } else {
 277                                         j++;
 278                                 }
 279                         }
 280                 }
 281
 282                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 283                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 284                                 ObjectClass     *oc;
 285                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 286                                         k = 0;
 287                                         while ( oc->soc_required[k] ) {
 288                                                 if ( !strcmp( exattrs[i],
 289                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 290                                                         ch_free( exattrs[i] );
 291                                                         for ( l = i; exattrs[l]; l++ ) {
 292                                                                 exattrs[l] = exattrs[l+1];
 293                                                         }
 294                                                 } else {
 295                                                         k++;
 296                                                 }
 297                                         }
 298                                 }
 299                         }
 300                 }
 301
 302                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 303
 304                 if ( i != n )
 305                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 306         }
 307
 308         si->si_exattrs = exattrs;
 309 }
 310
 311 typedef struct logschema {
 312         struct berval ls_dn;
 313         struct berval ls_req;
 314         struct berval ls_mod;
 315         struct berval ls_newRdn;
 316         struct berval ls_delRdn;
 317         struct berval ls_newSup;
 318 } logschema;
 319
 320 static logschema changelog_sc = {
 321         BER_BVC("targetDN"),
 322         BER_BVC("changeType"),
 323         BER_BVC("changes"),
 324         BER_BVC("newRDN"),
 325         BER_BVC("deleteOldRDN"),
 326         BER_BVC("newSuperior")
 327 };
 328
 329 static logschema accesslog_sc = {
 330         BER_BVC("reqDN"),
 331         BER_BVC("reqType"),
 332         BER_BVC("reqMod"),
 333         BER_BVC("reqNewRDN"),
 334         BER_BVC("reqDeleteOldRDN"),
 335         BER_BVC("reqNewSuperior")
 336 };
 337
 338 static int
 339 ldap_sync_search(
 340         syncinfo_t *si,
 341         void *ctx )
 342 {
 343         BerElementBuffer berbuf;
 344         BerElement *ber = (BerElement *)&berbuf;
 345         LDAPControl c[2], *ctrls[3];
 346         int rc;
 347         int rhint;
 348         char *base;
 349         char **attrs, *lattrs[8];
 350         char *filter;
 351         int attrsonly;
 352         int scope;
 353
 354         /* setup LDAP SYNC control */
 355         ber_init2( ber, NULL, LBER_USE_DER );
 356         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 357
 358         /* If we're using a log but we have no state, then fallback to
 359          * normal mode for a full refresh.
 360          */
 361         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 362                 si->si_logstate = SYNCLOG_FALLBACK;
 363         }
 364
 365         /* Use the log parameters if we're in log mode */
 366         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 367                 logschema *ls;
 368                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 369                         ls = &accesslog_sc;
 370                 else
 371                         ls = &changelog_sc;
 372                 lattrs[0] = ls->ls_dn.bv_val;
 373                 lattrs[1] = ls->ls_req.bv_val;
 374                 lattrs[2] = ls->ls_mod.bv_val;
 375                 lattrs[3] = ls->ls_newRdn.bv_val;
 376                 lattrs[4] = ls->ls_delRdn.bv_val;
 377                 lattrs[5] = ls->ls_newSup.bv_val;
 378                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 379                 lattrs[7] = NULL;
 380
 381                 rhint = 0;
 382                 base = si->si_logbase.bv_val;
 383                 filter = si->si_logfilterstr.bv_val;
 384                 attrs = lattrs;
 385                 attrsonly = 0;
 386                 scope = LDAP_SCOPE_SUBTREE;
 387         } else {
 388                 rhint = 1;
 389                 base = si->si_base.bv_val;
 390                 filter = si->si_filterstr.bv_val;
 391                 attrs = si->si_attrs;
 392                 attrsonly = si->si_attrsonly;
 393                 scope = si->si_scope;
 394         }
 395         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 396                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 397         } else {
 398                 si->si_type = si->si_ctype;
 399         }
 400
 401         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 402         {
 403                 ber_printf( ber, "{eOb}",
 404                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 405         } else {
 406                 ber_printf( ber, "{eb}",
 407                         abs(si->si_type), rhint );
 408         }
 409
 410         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 411                 ber_free_buf( ber );
 412                 return rc;
 413         }
 414
 415         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 416         c[0].ldctl_iscritical = si->si_type < 0;
 417         ctrls[0] = &c[0];
 418
 419         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 420                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 421                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 422                 c[1].ldctl_iscritical = 1;
 423                 ctrls[1] = &c[1];
 424                 ctrls[2] = NULL;
 425         } else {
 426                 ctrls[1] = NULL;
 427         }
 428
 429         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 430                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 431         ber_free_buf( ber );
 432         return rc;
 433 }
 434
 435 static int
 436 check_syncprov(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         AttributeName at[2];
 441         Attribute a = {0};
 442         Entry e = {0};
 443         SlapReply rs = {0};
 444         int i, j, changed = 0;
 445
 446         /* Look for contextCSN from syncprov overlay. If
 447          * there's no overlay, this will be a no-op. That means
 448          * this is a pure consumer, so local changes will not be
 449          * allowed, and all changes will already be reflected in
 450          * the cookieState.
 451          */
 452         a.a_desc = slap_schema.si_ad_contextCSN;
 453         e.e_attrs = &a;
 454         e.e_name = op->o_bd->be_suffix[0];
 455         e.e_nname = op->o_bd->be_nsuffix[0];
 456         at[0].an_name = a.a_desc->ad_cname;
 457         at[0].an_desc = a.a_desc;
 458         BER_BVZERO( &at[1].an_name );
 459         rs.sr_entry = &e;
 460         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 461         rs.sr_attrs = at;
 462         op->o_req_dn = e.e_name;
 463         op->o_req_ndn = e.e_nname;
 464
 465         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 466         i = backend_operational( op, &rs );
 467         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 468                 int num = a.a_numvals;
 469                 /* check for differences */
 470                 if ( num != si->si_cookieState->cs_num ) {
 471                         changed = 1;
 472                 } else {
 473                         for ( i=0; i<num; i++ ) {
 474                                 if ( ber_bvcmp( &a.a_nvals[i],
 475                                         &si->si_cookieState->cs_vals[i] )) {
 476                                         changed = 1;
 477                                         break;
 478                                 }
 479                         }
 480                 }
 481                 if ( changed ) {
 482                         ber_bvarray_free( si->si_cookieState->cs_vals );
 483                         ch_free( si->si_cookieState->cs_sids );
 484                         si->si_cookieState->cs_num = num;
 485                         si->si_cookieState->cs_vals = a.a_nvals;
 486                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 487                                 num, NULL );
 488                         si->si_cookieState->cs_age++;
 489                 } else {
 490                         ber_bvarray_free( a.a_nvals );
 491                 }
 492                 ber_bvarray_free( a.a_vals );
 493         }
 494         /* See if the cookieState has changed due to anything outside
 495          * this particular consumer. That includes other consumers in
 496          * the same context, or local changes detected above.
 497          */
 498         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 499                 si->si_cookieState->cs_age ) {
 500                 if ( !si->si_syncCookie.numcsns ) {
 501                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 502                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 503                                 si->si_cookieState->cs_vals, NULL );
 504                         changed = 1;
 505                 } else {
 506                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 507                                 /* bogus, just dup everything */
 508                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 509                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 510                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 511                                                 si->si_cookieState->cs_vals, NULL );
 512                                         changed = 1;
 513                                         break;
 514                                 }
 515                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 516                                         if ( si->si_syncCookie.sids[i] !=
 517                                                 si->si_cookieState->cs_sids[j] )
 518                                                 continue;
 519                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 520                                                 &si->si_cookieState->cs_vals[j] ))
 521                                                 break;
 522                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 523                                                 &si->si_cookieState->cs_vals[j] );
 524                                         changed = 1;
 525                                         break;
 526                                 }
 527                         }
 528                 }
 529         }
 530         if ( changed ) {
 531                 si->si_cookieAge = si->si_cookieState->cs_age;
 532                 ch_free( si->si_syncCookie.octet_str.bv_val );
 533                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 534                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 535                         si->si_syncCookie.sid );
 536         }
 537         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 538         return changed;
 539 }
 540
 541 static int
 542 do_syncrep1(
 543         Operation *op,
 544         syncinfo_t *si )
 545 {
 546         int     rc;
 547         int cmdline_cookie_found = 0;
 548
 549         struct sync_cookie      *sc = NULL;
 550 #ifdef HAVE_TLS
 551         void    *ssl;
 552 #endif
 553
 554         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 555         if ( rc != LDAP_SUCCESS ) {
 556                 goto done;
 557         }
 558         op->o_protocol = LDAP_VERSION3;
 559
 560         /* Set SSF to strongest of TLS, SASL SSFs */
 561         op->o_sasl_ssf = 0;
 562         op->o_tls_ssf = 0;
 563         op->o_transport_ssf = 0;
 564 #ifdef HAVE_TLS
 565         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 566                 == LDAP_SUCCESS && ssl != NULL )
 567         {
 568                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 569         }
 570 #endif /* HAVE_TLS */
 571         {
 572                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 573                                                   to use sasl_ssf_t but currently uses ber_len_t */
 574                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 575                 op->o_sasl_ssf = ssf;
 576         }
 577         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 578                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 579
 580         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 581
 582         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 583         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 584
 585         si->si_syncCookie.rid = si->si_rid;
 586
 587         /* whenever there are multiple data sources possible, advertise sid */
 588         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 589                 slap_serverID : -1;
 590
 591         /* We've just started up, or the remote server hasn't sent us
 592          * any meaningful state.
 593          */
 594         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 595                 int i;
 596
 597                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 598                         if ( si->si_rid == sc->rid ) {
 599                                 cmdline_cookie_found = 1;
 600                                 break;
 601                         }
 602                 }
 603
 604                 if ( cmdline_cookie_found ) {
 605                         /* cookie is supplied in the command line */
 606
 607                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 608
 609                         /* ctxcsn wasn't parsed yet, do it now */
 610                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 611                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 612                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 613                         slap_sync_cookie_free( sc, 1 );
 614                 } else {
 615                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 616                         if ( !si->si_cookieState->cs_num ) {
 617                                 /* get contextCSN shadow replica from database */
 618                                 BerVarray csn = NULL;
 619                                 void *ctx = op->o_tmpmemctx;
 620
 621                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 622                                 op->o_req_dn = op->o_req_ndn;
 623
 624                                 /* try to read stored contextCSN */
 625                                 op->o_tmpmemctx = NULL;
 626                                 backend_attribute( op, NULL, &op->o_req_ndn,
 627                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 628                                 op->o_tmpmemctx = ctx;
 629                                 if ( csn ) {
 630                                         si->si_cookieState->cs_vals = csn;
 631                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 632                                         si->si_cookieState->cs_num = i;
 633                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 634                                 }
 635                         }
 636                         if ( si->si_cookieState->cs_num ) {
 637                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 638                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 639                                         si->si_cookieState->cs_vals, NULL )) {
 640                                         rc = LDAP_NO_MEMORY;
 641                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 642                                         goto done;
 643                                 }
 644                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 645                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 646                                         sizeof(int) );
 647                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 648                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 649                         }
 650                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 651                 }
 652
 653                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 654                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 655                         si->si_syncCookie.sid );
 656         } else {
 657                 /* Look for contextCSN from syncprov overlay. */
 658                 check_syncprov( op, si );
 659         }
 660
 661         si->si_refreshDone = 0;
 662
 663         rc = ldap_sync_search( si, op->o_tmpmemctx );
 664
 665         if( rc != LDAP_SUCCESS ) {
 666                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 667                         "ldap_search_ext: %s (%d)\n",
 668                         si->si_ridtxt, ldap_err2string( rc ), rc );
 669         }
 670
 671 done:
 672         if ( rc ) {
 673                 if ( si->si_ld ) {
 674                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 675                         si->si_ld = NULL;
 676                 }
 677         }
 678
 679         return rc;
 680 }
 681
 682 static int
 683 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 684 {
 685         int i, j, match = 0;
 686         const char *text;
 687
 688         *which = 0;
 689
 690         if ( sc1->numcsns < sc2->numcsns ) {
 691                 *which = sc1->numcsns;
 692                 return -1;
 693         }
 694
 695         for (j=0; j<sc2->numcsns; j++) {
 696                 for (i=0; i<sc1->numcsns; i++) {
 697                         if ( sc1->sids[i] != sc2->sids[j] )
 698                                 continue;
 699                         value_match( &match, slap_schema.si_ad_entryCSN,
 700                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 701                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 702                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 703                         if ( match < 0 ) {
 704                                 *which = j;
 705                                 return match;
 706                         }
 707                         break;
 708                 }
 709                 if ( i == sc1->numcsns ) {
 710                         /* sc2 has a sid sc1 lacks */
 711                         *which = j;
 712                         return -1;
 713                 }
 714         }
 715         return match;
 716 }
 717
 718 #define SYNC_PAUSED     -3
 719
 720 static int
 721 do_syncrep2(
 722         Operation *op,
 723         syncinfo_t *si )
 724 {
 725         LDAPControl     **rctrls = NULL;
 726         LDAPControl     *rctrlp;
 727
 728         BerElementBuffer berbuf;
 729         BerElement      *ber = (BerElement *)&berbuf;
 730
 731         LDAPMessage     *msg = NULL;
 732
 733         char            *retoid = NULL;
 734         struct berval   *retdata = NULL;
 735
 736         Entry           *entry = NULL;
 737
 738         int             syncstate;
 739         struct berval   syncUUID = BER_BVNULL;
 740         struct sync_cookie      syncCookie = { NULL };
 741         struct sync_cookie      syncCookie_req = { NULL };
 742         struct berval           cookie = BER_BVNULL;
 743
 744         int             rc,
 745                         err = LDAP_SUCCESS;
 746         ber_len_t       len;
 747
 748         struct berval   *psub;
 749         Modifications   *modlist = NULL;
 750
 751         int                             match, m;
 752
 753         struct timeval *tout_p = NULL;
 754         struct timeval tout = { 0, 0 };
 755
 756         int             refreshDeletes = 0;
 757         BerVarray syncUUIDs = NULL;
 758         ber_tag_t si_tag;
 759
 760         if ( slapd_shutdown ) {
 761                 rc = -2;
 762                 goto done;
 763         }
 764
 765         ber_init2( ber, NULL, LBER_USE_DER );
 766         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 767
 768         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 769
 770         psub = &si->si_be->be_nsuffix[0];
 771
 772         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 773
 774         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 775                 tout_p = &tout;
 776         } else {
 777                 tout_p = NULL;
 778         }
 779
 780         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 781                 tout_p, &msg ) ) > 0 )
 782         {
 783                 if ( slapd_shutdown ) {
 784                         rc = -2;
 785                         goto done;
 786                 }
 787                 switch( ldap_msgtype( msg ) ) {
 788                 case LDAP_RES_SEARCH_ENTRY:
 789                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 790                         /* we can't work without the control */
 791                         rctrlp = NULL;
 792                         if ( rctrls ) {
 793                                 LDAPControl **next;
 794                                 /* NOTE: make sure we use the right one;
 795                                  * a better approach would be to run thru
 796                                  * the whole list and take care of all */
 797                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 798                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 799                                 {
 800                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 801                                                 "got search entry with multiple "
 802                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 803                                         rc = -1;
 804                                         goto done;
 805                                 }
 806                         }
 807                         if ( rctrlp == NULL ) {
 808                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 809                                         "got search entry without "
 810                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 811                                 rc = -1;
 812                                 goto done;
 813                         }
 814                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 815                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 816                         /* FIXME: what if syncUUID is NULL or empty?
 817                          * (happens with back-sql...) */
 818                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 819                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 820                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 821                                         si->si_ridtxt,
 822                                         syncrepl_state2str( syncstate ), 0 );
 823                                 ldap_controls_free( rctrls );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 828                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 829
 830                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 831                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 832
 833                                 if ( !BER_BVISNULL( &cookie ) ) {
 834                                         ch_free( syncCookie.octet_str.bv_val );
 835                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 836                                 }
 837                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 838                                 {
 839                                         slap_parse_sync_cookie( &syncCookie, NULL );
 840                                         if ( syncCookie.ctxcsn ) {
 841                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 842                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 843                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 844                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 845                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 846                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 847                                                                 ldap_controls_free( rctrls );
 848                                                                 rc = 0;
 849                                                                 goto done;
 850                                                         }
 851                                                 }
 852                                         }
 853                                 }
 854                         }
 855                         rc = 0;
 856                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 857                                 modlist = NULL;
 858                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 859                                         syncCookie.ctxcsn )
 860                                 {
 861                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 862                                 } else switch ( rc ) {
 863                                         case LDAP_ALREADY_EXISTS:
 864                                         case LDAP_NO_SUCH_OBJECT:
 865                                         case LDAP_NO_SUCH_ATTRIBUTE:
 866                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 867                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 868                                                 si->si_logstate = SYNCLOG_FALLBACK;
 869                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 870                                                 break;
 871                                         default:
 872                                                 break;
 873                                 }
 874                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 875                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 876                         {
 877                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 878                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 879                                         syncCookie.ctxcsn )
 880                                 {
 881                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 882                                 }
 883                         }
 884                         ldap_controls_free( rctrls );
 885                         if ( modlist ) {
 886                                 slap_mods_free( modlist, 1 );
 887                         }
 888                         if ( rc )
 889                                 goto done;
 890                         break;
 891
 892                 case LDAP_RES_SEARCH_REFERENCE:
 893                         Debug( LDAP_DEBUG_ANY,
 894                                 "do_syncrep2: %s reference received error\n",
 895                                 si->si_ridtxt, 0, 0 );
 896                         break;
 897
 898                 case LDAP_RES_SEARCH_RESULT:
 899                         Debug( LDAP_DEBUG_SYNC,
 900                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 901                                 si->si_ridtxt, 0, 0 );
 902                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 903                                 &rctrls, 0 );
 904 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 905                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 906                                 /* map old result code to registered code */
 907                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 908                         }
 909 #endif
 910                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 911                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 912                                         si->si_logstate = SYNCLOG_FALLBACK;
 913                                 }
 914                                 rc = err;
 915                                 goto done;
 916                         }
 917                         if ( err ) {
 918                                 Debug( LDAP_DEBUG_ANY,
 919                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 920                                         si->si_ridtxt, err, ldap_err2string( err ) );
 921                         }
 922                         if ( rctrls ) {
 923                                 rctrlp = *rctrls;
 924                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 925
 926                                 ber_scanf( ber, "{" /*"}"*/);
 927                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 928                                         ber_scanf( ber, "m", &cookie );
 929
 930                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 931                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 932
 933                                         if ( !BER_BVISNULL( &cookie ) ) {
 934                                                 ch_free( syncCookie.octet_str.bv_val );
 935                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 936                                         }
 937                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 938                                         {
 939                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 940                                         }
 941                                 }
 942                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 943                                 {
 944                                         ber_scanf( ber, "b", &refreshDeletes );
 945                                 }
 946                                 ber_scanf( ber, /*"{"*/ "}" );
 947                         }
 948                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 949                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 950                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 951                         }
 952                         if ( !syncCookie.ctxcsn ) {
 953                                 match = 1;
 954                         } else if ( !syncCookie_req.ctxcsn ) {
 955                                 match = -1;
 956                                 m = 0;
 957                         } else {
 958                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 959                         }
 960                         if ( rctrls ) {
 961                                 ldap_controls_free( rctrls );
 962                         }
 963                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 964                                 /* FIXME : different error behaviors according to
 965                                  *      1) err code : LDAP_BUSY ...
 966                                  *      2) on err policy : stop service, stop sync, retry
 967                                  */
 968                                 if ( refreshDeletes == 0 && match < 0 &&
 969                                         err == LDAP_SUCCESS &&
 970                                         syncCookie_req.numcsns == syncCookie.numcsns )
 971                                 {
 972                                         syncrepl_del_nonpresent( op, si, NULL,
 973                                                 &syncCookie, m );
 974                                 } else {
 975                                         avl_free( si->si_presentlist, ch_free );
 976                                         si->si_presentlist = NULL;
 977                                 }
 978                         }
 979                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 980                         {
 981                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 982                         }
 983                         if ( err == LDAP_SUCCESS
 984                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 985                                 si->si_logstate = SYNCLOG_LOGGING;
 986                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 987                         } else {
 988                                 rc = -2;
 989                         }
 990                         goto done;
 991                         break;
 992
 993                 case LDAP_RES_INTERMEDIATE:
 994                         rc = ldap_parse_intermediate( si->si_ld, msg,
 995                                 &retoid, &retdata, NULL, 0 );
 996                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 997                                 ber_init2( ber, retdata, LBER_USE_DER );
 998
 999                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1000                                 ber_tag_t tag;
1001                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1002                                         Debug( LDAP_DEBUG_SYNC,
1003                                                 "do_syncrep2: %s %s - %s\n",
1004                                                 si->si_ridtxt,
1005                                                 "LDAP_RES_INTERMEDIATE",
1006                                                 "NEW_COOKIE" );
1007                                         ber_scanf( ber, "tm", &tag, &cookie );
1008                                         break;
1009                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1010                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1011                                         Debug( LDAP_DEBUG_SYNC,
1012                                                 "do_syncrep2: %s %s - %s\n",
1013                                                 si->si_ridtxt,
1014                                                 "LDAP_RES_INTERMEDIATE",
1015                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1016                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1017                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1018                                                 si->si_refreshDelete = 1;
1019                                         } else {
1020                                                 si->si_refreshPresent = 1;
1021                                         }
1022                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1023                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1024                                         {
1025                                                 ber_scanf( ber, "m", &cookie );
1026
1027                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1028                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1029
1030                                                 if ( !BER_BVISNULL( &cookie ) ) {
1031                                                         ch_free( syncCookie.octet_str.bv_val );
1032                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1033                                                 }
1034                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1035                                                 {
1036                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1037                                                 }
1038                                         }
1039                                         /* Defaults to TRUE */
1040                                         if ( ber_peek_tag( ber, &len ) ==
1041                                                 LDAP_TAG_REFRESHDONE )
1042                                         {
1043                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1044                                         } else
1045                                         {
1046                                                 si->si_refreshDone = 1;
1047                                         }
1048                                         ber_scanf( ber, /*"{"*/ "}" );
1049                                         break;
1050                                 case LDAP_TAG_SYNC_ID_SET:
1051                                         Debug( LDAP_DEBUG_SYNC,
1052                                                 "do_syncrep2: %s %s - %s\n",
1053                                                 si->si_ridtxt,
1054                                                 "LDAP_RES_INTERMEDIATE",
1055                                                 "SYNC_ID_SET" );
1056                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1057                                         if ( ber_peek_tag( ber, &len ) ==
1058                                                 LDAP_TAG_SYNC_COOKIE )
1059                                         {
1060                                                 ber_scanf( ber, "m", &cookie );
1061
1062                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1063                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1064
1065                                                 if ( !BER_BVISNULL( &cookie ) ) {
1066                                                         ch_free( syncCookie.octet_str.bv_val );
1067                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1068                                                 }
1069                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1070                                                 {
1071                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1072                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1073                                                 }
1074                                         }
1075                                         if ( ber_peek_tag( ber, &len ) ==
1076                                                 LDAP_TAG_REFRESHDELETES )
1077                                         {
1078                                                 ber_scanf( ber, "b", &refreshDeletes );
1079                                         }
1080                                         ber_scanf( ber, "[W]", &syncUUIDs );
1081                                         ber_scanf( ber, /*"{"*/ "}" );
1082                                         if ( refreshDeletes ) {
1083                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1084                                                         &syncCookie, m );
1085                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1086                                         } else {
1087                                                 int i;
1088                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1089                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1090                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1091                                                 }
1092                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1093                                         }
1094                                         slap_sync_cookie_free( &syncCookie, 0 );
1095                                         break;
1096                                 default:
1097                                         Debug( LDAP_DEBUG_ANY,
1098                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1099                                                 si->si_ridtxt, (long) si_tag, 0 );
1100                                         ldap_memfree( retoid );
1101                                         ber_bvfree( retdata );
1102                                         continue;
1103                                 }
1104
1105                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1106                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1107                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1108                                 }
1109                                 if ( !syncCookie.ctxcsn ) {
1110                                         match = 1;
1111                                 } else if ( !syncCookie_req.ctxcsn ) {
1112                                         match = -1;
1113                                         m = 0;
1114                                 } else {
1115                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1116                                 }
1117
1118                                 if ( match < 0 ) {
1119                                         if ( si->si_refreshPresent == 1 &&
1120                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1121                                                 syncrepl_del_nonpresent( op, si, NULL,
1122                                                         &syncCookie, m );
1123                                         }
1124
1125                                         if ( syncCookie.ctxcsn )
1126                                         {
1127                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1128                                         }
1129                                 }
1130
1131                                 ldap_memfree( retoid );
1132                                 ber_bvfree( retdata );
1133                                 break;
1134
1135                         } else {
1136                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1137                                         "unknown intermediate response (%d)\n",
1138                                         si->si_ridtxt, rc, 0 );
1139                                 ldap_memfree( retoid );
1140                                 ber_bvfree( retdata );
1141                                 break;
1142                         }
1143                         break;
1144
1145                 default:
1146                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1147                                 "unknown message (0x%02lx)\n",
1148                                 si->si_ridtxt,
1149                                 (unsigned long)ldap_msgtype( msg ), 0 );
1150                         break;
1151
1152                 }
1153                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1154                         slap_sync_cookie_free( &syncCookie_req, 0 );
1155                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1156                         slap_sync_cookie_free( &syncCookie, 0 );
1157                 }
1158                 ldap_msgfree( msg );
1159                 msg = NULL;
1160                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1161                         slap_sync_cookie_free( &syncCookie, 0 );
1162                         slap_sync_cookie_free( &syncCookie_req, 0 );
1163                         return SYNC_PAUSED;
1164                 }
1165         }
1166
1167         if ( rc == -1 ) {
1168                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1169                 err = rc;
1170         }
1171
1172 done:
1173         if ( err != LDAP_SUCCESS ) {
1174                 Debug( LDAP_DEBUG_ANY,
1175                         "do_syncrep2: %s (%d) %s\n",
1176                         si->si_ridtxt, err, ldap_err2string( err ) );
1177         }
1178
1179         slap_sync_cookie_free( &syncCookie, 0 );
1180         slap_sync_cookie_free( &syncCookie_req, 0 );
1181
1182         if ( msg ) ldap_msgfree( msg );
1183
1184         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1185                 if ( si->si_conn ) {
1186                         connection_client_stop( si->si_conn );
1187                         si->si_conn = NULL;
1188                 }
1189                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1190                 si->si_ld = NULL;
1191         }
1192
1193         return rc;
1194 }
1195
1196 static void *
1197 do_syncrepl(
1198         void    *ctx,
1199         void    *arg )
1200 {
1201         struct re_s* rtask = arg;
1202         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1203         Connection conn = {0};
1204         OperationBuffer opbuf;
1205         Operation *op;
1206         int rc = LDAP_SUCCESS;
1207         int dostop = 0;
1208         ber_socket_t s;
1209         int i, defer = 1, fail = 0;
1210         Backend *be;
1211
1212         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1213
1214         if ( si == NULL )
1215                 return NULL;
1216
1217         /* There will never be more than one instance active */
1218         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1219
1220         switch( abs( si->si_type ) ) {
1221         case LDAP_SYNC_REFRESH_ONLY:
1222         case LDAP_SYNC_REFRESH_AND_PERSIST:
1223                 break;
1224         default:
1225                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1226                 return NULL;
1227         }
1228
1229         if ( slapd_shutdown ) {
1230                 if ( si->si_ld ) {
1231                         if ( si->si_conn ) {
1232                                 connection_client_stop( si->si_conn );
1233                                 si->si_conn = NULL;
1234                         }
1235                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1236                         si->si_ld = NULL;
1237                 }
1238                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1239                 return NULL;
1240         }
1241
1242         connection_fake_init( &conn, &opbuf, ctx );
1243         op = &opbuf.ob_op;
1244
1245         /* use global malloc for now */
1246         op->o_tmpmemctx = NULL;
1247         op->o_tmpmfuncs = &ch_mfuncs;
1248
1249         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1250         be = si->si_be;
1251
1252         /* Coordinate contextCSN updates with any syncprov overlays
1253          * in use. This may be complicated by the use of the glue
1254          * overlay.
1255          *
1256          * Typically there is a single syncprov mastering the entire
1257          * glued tree. In that case, our contextCSN updates should
1258          * go to the master DB. But if there is no syncprov on the
1259          * master DB, then nothing special is needed here.
1260          *
1261          * Alternatively, there may be individual syncprov overlays
1262          * on each glued branch. In that case, each syncprov only
1263          * knows about changes within its own branch. And so our
1264          * contextCSN updates should only go to the local DB.
1265          */
1266         if ( !si->si_wbe ) {
1267                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1268                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1269                         if ( overlay_is_inst( top_be, "syncprov" ))
1270                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1271                         else
1272                                 si->si_wbe = be;
1273                 } else {
1274                         si->si_wbe = be;
1275                 }
1276         }
1277         if ( !si->si_schemachecking )
1278                 op->o_no_schema_check = 1;
1279
1280         /* Establish session, do search */
1281         if ( !si->si_ld ) {
1282                 si->si_refreshDelete = 0;
1283                 si->si_refreshPresent = 0;
1284
1285                 /* use main DB when retrieving contextCSN */
1286                 op->o_bd = si->si_wbe;
1287                 op->o_dn = op->o_bd->be_rootdn;
1288                 op->o_ndn = op->o_bd->be_rootndn;
1289                 rc = do_syncrep1( op, si );
1290         }
1291
1292 reload:
1293         /* Process results */
1294         if ( rc == LDAP_SUCCESS ) {
1295                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1296
1297                 /* use current DB */
1298                 op->o_bd = be;
1299                 op->o_dn = op->o_bd->be_rootdn;
1300                 op->o_ndn = op->o_bd->be_rootndn;
1301                 rc = do_syncrep2( op, si );
1302                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1303                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1304                         goto reload;
1305                 }
1306
1307                 /* We got deleted while running on cn=config */
1308                 if ( !si->si_ctype ) {
1309                         if ( si->si_conn )
1310                                 dostop = 1;
1311                         rc = -1;
1312                 }
1313
1314                 if ( rc != SYNC_PAUSED ) {
1315                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1316                                 /* If we succeeded, enable the connection for further listening.
1317                                  * If we failed, tear down the connection and reschedule.
1318                                  */
1319                                 if ( rc == LDAP_SUCCESS ) {
1320                                         if ( si->si_conn ) {
1321                                                 connection_client_enable( si->si_conn );
1322                                         } else {
1323                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1324                                         }
1325                                 } else if ( si->si_conn ) {
1326                                         dostop = 1;
1327                                 }
1328                         } else {
1329                                 if ( rc == -2 ) rc = 0;
1330                         }
1331                 }
1332         }
1333
1334         /* At this point, we have 5 cases:
1335          * 1) for any hard failure, give up and remove this task
1336          * 2) for ServerDown, reschedule this task to run later
1337          * 3) for threadpool pause, reschedule to run immediately
1338          * 4) for Refresh and Success, reschedule to run
1339          * 5) for Persist and Success, reschedule to defer
1340          */
1341         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1342
1343         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1344                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1345         }
1346
1347         if ( dostop ) {
1348                 connection_client_stop( si->si_conn );
1349                 si->si_conn = NULL;
1350         }
1351
1352         if ( rc == SYNC_PAUSED ) {
1353                 rtask->interval.tv_sec = 0;
1354                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1355                 rtask->interval.tv_sec = si->si_interval;
1356                 rc = 0;
1357         } else if ( rc == LDAP_SUCCESS ) {
1358                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1359                         defer = 0;
1360                 }
1361                 rtask->interval.tv_sec = si->si_interval;
1362                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1363                 if ( si->si_retrynum ) {
1364                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1365                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1366                         }
1367                         si->si_retrynum[i] = RETRYNUM_TAIL;
1368                 }
1369         } else {
1370                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1371                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1372                                 break;
1373                 }
1374
1375                 if ( !si->si_ctype
1376                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1377                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1378                         fail = RETRYNUM_TAIL;
1379                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1380                         if ( si->si_retrynum[i] > 0 )
1381                                 si->si_retrynum[i]--;
1382                         fail = si->si_retrynum[i];
1383                         rtask->interval.tv_sec = si->si_retryinterval[i];
1384                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1385                         slap_wake_listener();
1386                 }
1387         }
1388
1389         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1390         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1391
1392         if ( rc ) {
1393                 if ( fail == RETRYNUM_TAIL ) {
1394                         Debug( LDAP_DEBUG_ANY,
1395                                 "do_syncrepl: %s quitting\n",
1396                                 si->si_ridtxt, 0, 0 );
1397                 } else if ( fail > 0 ) {
1398                         Debug( LDAP_DEBUG_ANY,
1399                                 "do_syncrepl: %s retrying (%d retries left)\n",
1400                                 si->si_ridtxt, fail, 0 );
1401                 } else {
1402                         Debug( LDAP_DEBUG_ANY,
1403                                 "do_syncrepl: %s retrying\n",
1404                                 si->si_ridtxt, 0, 0 );
1405                 }
1406         }
1407
1408         /* Do final delete cleanup */
1409         if ( !si->si_ctype ) {
1410                 cookie_state *cs = NULL;
1411                 syncinfo_t **sip;
1412
1413                 cs = be->be_syncinfo->si_cookieState;
1414                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1415                 *sip = si->si_next;
1416                 syncinfo_free( si, 0 );
1417                 if ( !be->be_syncinfo ) {
1418                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1419                         if ( cs ) {
1420                                 ch_free( cs->cs_sids );
1421                                 ber_bvarray_free( cs->cs_vals );
1422                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1423                                 ch_free( cs );
1424                         }
1425                 }
1426         }
1427         return NULL;
1428 }
1429
1430 static slap_verbmasks modops[] = {
1431         { BER_BVC("add"), LDAP_REQ_ADD },
1432         { BER_BVC("delete"), LDAP_REQ_DELETE },
1433         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1434         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1435         { BER_BVNULL, 0 }
1436 };
1437
1438 static Modifications *
1439 syncrepl_accesslog_mods(
1440         syncinfo_t *si,
1441         struct berval *vals
1442 )
1443 {
1444         char *colon;
1445         const char *text;
1446         AttributeDescription *ad;
1447         struct berval bv, bv2;
1448         short op;
1449         Modifications *mod = NULL, *modlist = NULL, **modtail;
1450         int i;
1451
1452         modtail = &modlist;
1453
1454         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1455                 ad = NULL;
1456                 bv = vals[i];
1457
1458                 colon = ber_bvchr( &bv, ':' );
1459                 if ( !colon ) {
1460                         /* Invalid */
1461                         continue;
1462                 }
1463
1464                 bv.bv_len = colon - bv.bv_val;
1465                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1466                         /* Invalid */
1467                         continue;
1468                 }
1469
1470                 /* Ignore dynamically generated attrs */
1471                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1472                         continue;
1473                 }
1474
1475                 /* Ignore excluded attrs */
1476                 if ( ldap_charray_inlist( si->si_exattrs,
1477                         ad->ad_type->sat_cname.bv_val ) )
1478                 {
1479                         continue;
1480                 }
1481
1482                 switch(colon[1]) {
1483                 case '+':       op = LDAP_MOD_ADD; break;
1484                 case '-':       op = LDAP_MOD_DELETE; break;
1485                 case '=':       op = LDAP_MOD_REPLACE; break;
1486                 case '#':       op = LDAP_MOD_INCREMENT; break;
1487                 default:        continue;
1488                 }
1489
1490                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1491                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1492                         mod->sml_flags = 0;
1493                         mod->sml_op = op;
1494                         mod->sml_next = NULL;
1495                         mod->sml_desc = ad;
1496                         mod->sml_type = ad->ad_cname;
1497                         mod->sml_values = NULL;
1498                         mod->sml_nvalues = NULL;
1499                         mod->sml_numvals = 0;
1500
1501                         *modtail = mod;
1502                         modtail = &mod->sml_next;
1503                 }
1504                 if ( colon[2] == ' ' ) {
1505                         bv.bv_val = colon + 3;
1506                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1507                         ber_dupbv( &bv2, &bv );
1508                         ber_bvarray_add( &mod->sml_values, &bv2 );
1509                         mod->sml_numvals++;
1510                 }
1511         }
1512         return modlist;
1513 }
1514
1515 static Modifications *
1516 syncrepl_changelog_mods(
1517         syncinfo_t *si,
1518         struct berval *vals
1519 )
1520 {
1521         return NULL;    /* FIXME */
1522 }
1523
1524 static int
1525 syncrepl_message_to_op(
1526         syncinfo_t      *si,
1527         Operation       *op,
1528         LDAPMessage     *msg
1529 )
1530 {
1531         BerElement      *ber = NULL;
1532         Modifications   *modlist = NULL;
1533         logschema *ls;
1534         SlapReply rs = { REP_RESULT };
1535         slap_callback cb = { NULL, null_callback, NULL, NULL };
1536
1537         const char      *text;
1538         char txtbuf[SLAP_TEXT_BUFLEN];
1539         size_t textlen = sizeof txtbuf;
1540
1541         struct berval   bdn, dn = BER_BVNULL, ndn;
1542         struct berval   bv, *bvals = NULL;
1543         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1544                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1545                 psup = BER_BVNULL, nsup = BER_BVNULL;
1546         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1547
1548         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1549                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1550                         "Message type should be entry (%d)",
1551                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1552                 return -1;
1553         }
1554
1555         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1556                 ls = &accesslog_sc;
1557         else
1558                 ls = &changelog_sc;
1559
1560         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1561
1562         if ( rc != LDAP_SUCCESS ) {
1563                 Debug( LDAP_DEBUG_ANY,
1564                         "syncrepl_message_to_op: %s dn get failed (%d)",
1565                         si->si_ridtxt, rc, 0 );
1566                 return rc;
1567         }
1568
1569         op->o_tag = LBER_DEFAULT;
1570         op->o_bd = si->si_wbe;
1571
1572         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1573                 == LDAP_SUCCESS ) {
1574                 if ( bv.bv_val == NULL )
1575                         break;
1576
1577                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1578                         bdn = bvals[0];
1579                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1580                         ber_dupbv( &op->o_req_dn, &dn );
1581                         ber_dupbv( &op->o_req_ndn, &ndn );
1582                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1583                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1584                         freeReqDn = 1;
1585                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1586                         int i = verb_to_mask( bvals[0].bv_val, modops );
1587                         if ( i < 0 ) {
1588                                 Debug( LDAP_DEBUG_ANY,
1589                                         "syncrepl_message_to_op: %s unknown op %s",
1590                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1591                                 ch_free( bvals );
1592                                 rc = -1;
1593                                 goto done;
1594                         }
1595                         op->o_tag = modops[i].mask;
1596                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1597                         /* Parse attribute into modlist */
1598                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1599                                 modlist = syncrepl_accesslog_mods( si, bvals );
1600                         } else {
1601                                 modlist = syncrepl_changelog_mods( si, bvals );
1602                         }
1603                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1604                         rdn = bvals[0];
1605                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1606                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1607                                 deleteOldRdn = 1;
1608                         }
1609                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1610                         sup = bvals[0];
1611                 } else if ( !ber_bvstrcasecmp( &bv,
1612                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1613                 {
1614                         slap_queue_csn( op, bvals );
1615                 }
1616                 ch_free( bvals );
1617         }
1618
1619         /* If we didn't get a mod type or a target DN, bail out */
1620         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1621                 rc = -1;
1622                 goto done;
1623         }
1624
1625         op->o_callback = &cb;
1626         slap_op_time( &op->o_time, &op->o_tincr );
1627
1628         switch( op->o_tag ) {
1629         case LDAP_REQ_ADD:
1630         case LDAP_REQ_MODIFY:
1631                 /* If we didn't get required data, bail */
1632                 if ( !modlist ) goto done;
1633
1634                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1635
1636                 if ( rc != LDAP_SUCCESS ) {
1637                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1638                                 "mods check (%s)\n",
1639                                 si->si_ridtxt, text, 0 );
1640                         goto done;
1641                 }
1642
1643                 if ( op->o_tag == LDAP_REQ_ADD ) {
1644                         Entry *e = entry_alloc();
1645                         op->ora_e = e;
1646                         op->ora_e->e_name = op->o_req_dn;
1647                         op->ora_e->e_nname = op->o_req_ndn;
1648                         freeReqDn = 0;
1649                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1650                         if( rc != LDAP_SUCCESS ) {
1651                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1652                                 "mods2entry (%s)\n",
1653                                         si->si_ridtxt, text, 0 );
1654                         } else {
1655                                 rc = op->o_bd->be_add( op, &rs );
1656                                 Debug( LDAP_DEBUG_SYNC,
1657                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1658                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1659                         }
1660                         if ( e == op->ora_e )
1661                                 be_entry_release_w( op, op->ora_e );
1662                 } else {
1663                         op->orm_modlist = modlist;
1664                         op->o_bd = si->si_wbe;
1665                         rc = op->o_bd->be_modify( op, &rs );
1666                         modlist = op->orm_modlist;
1667                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1668                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1669                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1670                         op->o_bd = si->si_be;
1671                 }
1672                 break;
1673         case LDAP_REQ_MODRDN:
1674                 if ( BER_BVISNULL( &rdn ) ) goto done;
1675
1676                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1677                         goto done;
1678                 }
1679                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1680                         goto done;
1681                 }
1682                 if ( !BER_BVISNULL( &sup ) ) {
1683                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1684                                 goto done;
1685                         }
1686                         op->orr_newSup = &psup;
1687                         op->orr_nnewSup = &nsup;
1688                 } else {
1689                         op->orr_newSup = NULL;
1690                         op->orr_nnewSup = NULL;
1691                 }
1692                 op->orr_newrdn = prdn;
1693                 op->orr_nnewrdn = nrdn;
1694                 op->orr_deleteoldrdn = deleteOldRdn;
1695                 op->orr_modlist = NULL;
1696                 if ( slap_modrdn2mods( op, &rs ) ) {
1697                         goto done;
1698                 }
1699
1700                 /* Append modlist for operational attrs */
1701                 {
1702                         Modifications *m;
1703
1704                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1705                                 ;
1706                         m->sml_next = modlist;
1707                         modlist = NULL;
1708                 }
1709                 rc = op->o_bd->be_modrdn( op, &rs );
1710                 slap_mods_free( op->orr_modlist, 1 );
1711                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1712                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1713                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1714                 break;
1715         case LDAP_REQ_DELETE:
1716                 rc = op->o_bd->be_delete( op, &rs );
1717                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1718                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1719                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1720                 break;
1721         }
1722 done:
1723         slap_graduate_commit_csn( op );
1724         op->o_bd = si->si_be;
1725         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1726         BER_BVZERO( &op->o_csn );
1727         if ( modlist ) {
1728                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1729         }
1730         if ( !BER_BVISNULL( &rdn ) ) {
1731                 if ( !BER_BVISNULL( &nsup ) ) {
1732                         ch_free( nsup.bv_val );
1733                 }
1734                 if ( !BER_BVISNULL( &psup ) ) {
1735                         ch_free( psup.bv_val );
1736                 }
1737                 if ( !BER_BVISNULL( &nrdn ) ) {
1738                         ch_free( nrdn.bv_val );
1739                 }
1740                 if ( !BER_BVISNULL( &prdn ) ) {
1741                         ch_free( prdn.bv_val );
1742                 }
1743         }
1744         if ( freeReqDn ) {
1745                 ch_free( op->o_req_ndn.bv_val );
1746                 ch_free( op->o_req_dn.bv_val );
1747         }
1748         ber_free( ber, 0 );
1749         return rc;
1750 }
1751
1752 static int
1753 syncrepl_message_to_entry(
1754         syncinfo_t      *si,
1755         Operation       *op,
1756         LDAPMessage     *msg,
1757         Modifications   **modlist,
1758         Entry                   **entry,
1759         int             syncstate
1760 )
1761 {
1762         Entry           *e = NULL;
1763         BerElement      *ber = NULL;
1764         Modifications   tmp;
1765         Modifications   *mod;
1766         Modifications   **modtail = modlist;
1767
1768         const char      *text;
1769         char txtbuf[SLAP_TEXT_BUFLEN];
1770         size_t textlen = sizeof txtbuf;
1771
1772         struct berval   bdn = BER_BVNULL, dn, ndn;
1773         int             rc, is_ctx;
1774
1775         *modlist = NULL;
1776
1777         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1778                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1779                         "Message type should be entry (%d)",
1780                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1781                 return -1;
1782         }
1783
1784         op->o_tag = LDAP_REQ_ADD;
1785
1786         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1787         if ( rc != LDAP_SUCCESS ) {
1788                 Debug( LDAP_DEBUG_ANY,
1789                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1790                         si->si_ridtxt, rc, 0 );
1791                 return rc;
1792         }
1793
1794         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1795                 /* NOTE: this could be done even before decoding the DN,
1796                  * although encoding errors wouldn't be detected */
1797                 rc = LDAP_SUCCESS;
1798                 goto done;
1799         }
1800
1801         if ( entry == NULL ) {
1802                 return -1;
1803         }
1804
1805         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1806         ber_dupbv( &op->o_req_dn, &dn );
1807         ber_dupbv( &op->o_req_ndn, &ndn );
1808         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1809         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1810
1811         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1812
1813         e = entry_alloc();
1814         e->e_name = op->o_req_dn;
1815         e->e_nname = op->o_req_ndn;
1816
1817         while ( ber_remaining( ber ) ) {
1818                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1819                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1820                 {
1821                         break;
1822                 }
1823
1824                 /* Drop all updates to the contextCSN of the context entry
1825                  * (ITS#4622, etc.)
1826                  */
1827                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1828                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1829                         ber_bvarray_free( tmp.sml_values );
1830                         continue;
1831                 }
1832
1833                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1834
1835                 mod->sml_op = LDAP_MOD_REPLACE;
1836                 mod->sml_flags = 0;
1837                 mod->sml_next = NULL;
1838                 mod->sml_desc = NULL;
1839                 mod->sml_type = tmp.sml_type;
1840                 mod->sml_values = tmp.sml_values;
1841                 mod->sml_nvalues = NULL;
1842                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1843
1844                 *modtail = mod;
1845                 modtail = &mod->sml_next;
1846         }
1847
1848         if ( *modlist == NULL ) {
1849                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1850                         si->si_ridtxt, 0, 0 );
1851                 rc = -1;
1852                 goto done;
1853         }
1854
1855         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1856
1857         if ( rc != LDAP_SUCCESS ) {
1858                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1859                         si->si_ridtxt, text, 0 );
1860                 goto done;
1861         }
1862
1863         /* Strip out dynamically generated attrs */
1864         for ( modtail = modlist; *modtail ; ) {
1865                 mod = *modtail;
1866                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1867                         *modtail = mod->sml_next;
1868                         slap_mod_free( &mod->sml_mod, 0 );
1869                         ch_free( mod );
1870                 } else {
1871                         modtail = &mod->sml_next;
1872                 }
1873         }
1874
1875         /* Strip out attrs in exattrs list */
1876         for ( modtail = modlist; *modtail ; ) {
1877                 mod = *modtail;
1878                 if ( ldap_charray_inlist( si->si_exattrs,
1879                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1880                 {
1881                         *modtail = mod->sml_next;
1882                         slap_mod_free( &mod->sml_mod, 0 );
1883                         ch_free( mod );
1884                 } else {
1885                         modtail = &mod->sml_next;
1886                 }
1887         }
1888
1889         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1890         if( rc != LDAP_SUCCESS ) {
1891                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1892                         si->si_ridtxt, text, 0 );
1893         }
1894
1895 done:
1896         ber_free( ber, 0 );
1897         if ( rc != LDAP_SUCCESS ) {
1898                 if ( e ) {
1899                         entry_free( e );
1900                         e = NULL;
1901                 }
1902         }
1903         if ( entry )
1904                 *entry = e;
1905
1906         return rc;
1907 }
1908
1909 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1910
1911 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1912  * entry if a previous refresh was interrupted before sending us a new
1913  * context state. We try to compare the new entry to the existing entry
1914  * and ignore the new entry if they are the same.
1915  *
1916  * Also, we may get an update where the entryDN has changed, due to
1917  * a ModDn on the provider. We detect this as well, so we can issue
1918  * the corresponding operation locally.
1919  *
1920  * In the case of a modify, we get a list of all the attributes
1921  * in the original entry. Rather than deleting the entry and re-adding it,
1922  * we issue a Modify request that deletes all the attributes and adds all
1923  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1924  * entry.
1925  *
1926  * We otherwise distinguish ModDN from Modify; in the case of
1927  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1928  * operational attributes from the entry, and do a regular ModDN.
1929  */
1930 typedef struct dninfo {
1931         Entry *new_entry;
1932         struct berval dn;
1933         struct berval ndn;
1934         int renamed;    /* Was an existing entry renamed? */
1935         int delOldRDN;  /* Was old RDN deleted? */
1936         Modifications **modlist;        /* the modlist we received */
1937         Modifications *mods;    /* the modlist we compared */
1938 } dninfo;
1939
1940 /* return 1 if inserted, 0 otherwise */
1941 static int
1942 avl_presentlist_insert(
1943         syncinfo_t* si,
1944         struct berval *syncUUID )
1945 {
1946         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1947
1948         syncuuid_bv->bv_len = syncUUID->bv_len;
1949         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1950         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1951         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1952
1953         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1954                 syncuuid_cmp, avl_dup_error ) )
1955         {
1956                 ch_free( syncuuid_bv );
1957                 return 0;
1958         }
1959
1960         return 1;
1961 }
1962
1963 static int
1964 syncrepl_entry(
1965         syncinfo_t* si,
1966         Operation *op,
1967         Entry* entry,
1968         Modifications** modlist,
1969         int syncstate,
1970         struct berval* syncUUID,
1971         struct berval* syncCSN )
1972 {
1973         Backend *be = op->o_bd;
1974         slap_callback   cb = { NULL, NULL, NULL, NULL };
1975         int syncuuid_inserted = 0;
1976         struct berval   syncUUID_strrep = BER_BVNULL;
1977
1978         SlapReply       rs_search = {REP_RESULT};
1979         SlapReply       rs_delete = {REP_RESULT};
1980         SlapReply       rs_add = {REP_RESULT};
1981         SlapReply       rs_modify = {REP_RESULT};
1982         Filter f = {0};
1983         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1984         int rc = LDAP_SUCCESS;
1985
1986         struct berval pdn = BER_BVNULL;
1987         dninfo dni = {0};
1988         int     retry = 1;
1989         int     freecsn = 1;
1990
1991         Debug( LDAP_DEBUG_SYNC,
1992                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1993                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1994
1995         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1996                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1997                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1998                 }
1999         }
2000
2001         if ( syncstate == LDAP_SYNC_PRESENT ) {
2002                 return 0;
2003         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2004                 if ( entry == NULL ) {
2005                         return 0;
2006                 }
2007         }
2008
2009         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2010         if ( syncstate != LDAP_SYNC_DELETE ) {
2011                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2012
2013                 if ( a == NULL ) {
2014                         /* add if missing */
2015                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2016                                 &syncUUID_strrep, syncUUID );
2017
2018                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2019                         /* replace only if necessary */
2020                         if ( a->a_nvals != a->a_vals ) {
2021                                 ber_memfree( a->a_nvals[0].bv_val );
2022                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2023                         }
2024                         ber_memfree( a->a_vals[0].bv_val );
2025                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2026                 }
2027         }
2028
2029         f.f_choice = LDAP_FILTER_EQUALITY;
2030         f.f_ava = &ava;
2031         ava.aa_desc = slap_schema.si_ad_entryUUID;
2032         ava.aa_value = *syncUUID;
2033
2034         if ( syncuuid_inserted ) {
2035                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2036                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2037         }
2038         op->ors_filter = &f;
2039
2040         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2041         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2042                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2043         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2044         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2045                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2046         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2047         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2048
2049         op->o_tag = LDAP_REQ_SEARCH;
2050         op->ors_scope = LDAP_SCOPE_SUBTREE;
2051         op->ors_deref = LDAP_DEREF_NEVER;
2052
2053         /* get the entry for this UUID */
2054         op->o_req_dn = si->si_base;
2055         op->o_req_ndn = si->si_base;
2056
2057         op->o_time = slap_get_time();
2058         op->ors_tlimit = SLAP_NO_LIMIT;
2059         op->ors_slimit = 1;
2060
2061         op->ors_attrs = slap_anlist_all_attributes;
2062         op->ors_attrsonly = 0;
2063
2064         /* set callback function */
2065         op->o_callback = &cb;
2066         cb.sc_response = dn_callback;
2067         cb.sc_private = &dni;
2068         dni.new_entry = entry;
2069         dni.modlist = modlist;
2070
2071         if ( limits_check( op, &rs_search ) == 0 ) {
2072                 rc = be->be_search( op, &rs_search );
2073                 Debug( LDAP_DEBUG_SYNC,
2074                                 "syncrepl_entry: %s be_search (%d)\n",
2075                                 si->si_ridtxt, rc, 0 );
2076         }
2077
2078         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2079                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2080         }
2081
2082         cb.sc_response = null_callback;
2083         cb.sc_private = si;
2084
2085         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2086                 Debug( LDAP_DEBUG_SYNC,
2087                                 "syncrepl_entry: %s %s\n",
2088                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2089         } else {
2090                 Debug( LDAP_DEBUG_SYNC,
2091                                 "syncrepl_entry: %s %s\n",
2092                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2093         }
2094
2095         assert( BER_BVISNULL( &op->o_csn ) );
2096         if ( syncCSN ) {
2097                 slap_queue_csn( op, syncCSN );
2098         }
2099
2100         slap_op_time( &op->o_time, &op->o_tincr );
2101         switch ( syncstate ) {
2102         case LDAP_SYNC_ADD:
2103         case LDAP_SYNC_MODIFY:
2104                 if ( BER_BVISNULL( &op->o_csn ))
2105                 {
2106
2107                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2108                         if ( a ) {
2109                                 /* FIXME: op->o_csn is assumed to be
2110                                  * on the thread's slab; this needs
2111                                  * to be cleared ASAP.
2112                                  * What happens if already present?
2113                                  */
2114                                 assert( BER_BVISNULL( &op->o_csn ) );
2115                                 op->o_csn = a->a_vals[0];
2116                                 freecsn = 0;
2117                         }
2118                 }
2119 retry_add:;
2120                 if ( BER_BVISNULL( &dni.dn ) ) {
2121
2122                         op->o_req_dn = entry->e_name;
2123                         op->o_req_ndn = entry->e_nname;
2124                         op->o_tag = LDAP_REQ_ADD;
2125                         op->ora_e = entry;
2126                         op->o_bd = si->si_wbe;
2127
2128                         rc = op->o_bd->be_add( op, &rs_add );
2129                         Debug( LDAP_DEBUG_SYNC,
2130                                         "syncrepl_entry: %s be_add (%d)\n",
2131                                         si->si_ridtxt, rc, 0 );
2132                         switch ( rs_add.sr_err ) {
2133                         case LDAP_SUCCESS:
2134                                 if ( op->ora_e == entry ) {
2135                                         be_entry_release_w( op, entry );
2136                                 }
2137                                 entry = NULL;
2138                                 break;
2139
2140                         case LDAP_REFERRAL:
2141                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2142                          * only if the suffix entry is not present */
2143                         case LDAP_NO_SUCH_OBJECT:
2144                                 rc = syncrepl_add_glue( op, entry );
2145                                 entry = NULL;
2146                                 break;
2147
2148                         /* if an entry was added via syncrepl_add_glue(),
2149                          * it likely has no entryUUID, so the previous
2150                          * be_search() doesn't find it.  In this case,
2151                          * give syncrepl a chance to modify it. Also
2152                          * allow for entries that were recreated with the
2153                          * same DN but a different entryUUID.
2154                          */
2155                         case LDAP_ALREADY_EXISTS:
2156                                 if ( retry ) {
2157                                         Operation       op2 = *op;
2158                                         SlapReply       rs2 = { 0 };
2159                                         slap_callback   cb2 = { 0 };
2160
2161                                         op2.o_bd = be;
2162                                         op2.o_tag = LDAP_REQ_SEARCH;
2163                                         op2.o_req_dn = entry->e_name;
2164                                         op2.o_req_ndn = entry->e_nname;
2165                                         op2.ors_scope = LDAP_SCOPE_BASE;
2166                                         op2.ors_deref = LDAP_DEREF_NEVER;
2167                                         op2.ors_attrs = slap_anlist_all_attributes;
2168                                         op2.ors_attrsonly = 0;
2169                                         op2.ors_limit = NULL;
2170                                         op2.ors_slimit = 1;
2171                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2172
2173                                         f.f_choice = LDAP_FILTER_PRESENT;
2174                                         f.f_desc = slap_schema.si_ad_objectClass;
2175                                         op2.ors_filter = &f;
2176                                         op2.ors_filterstr = generic_filterstr;
2177
2178                                         op2.o_callback = &cb2;
2179                                         cb2.sc_response = dn_callback;
2180                                         cb2.sc_private = &dni;
2181
2182                                         rc = be->be_search( &op2, &rs2 );
2183                                         if ( rc ) goto done;
2184
2185                                         retry = 0;
2186                                         slap_op_time( &op->o_time, &op->o_tincr );
2187                                         goto retry_add;
2188                                 }
2189                                 /* FALLTHRU */
2190
2191                         default:
2192                                 Debug( LDAP_DEBUG_ANY,
2193                                         "syncrepl_entry: %s be_add failed (%d)\n",
2194                                         si->si_ridtxt, rs_add.sr_err, 0 );
2195                                 break;
2196                         }
2197                         op->o_bd = be;
2198                         goto done;
2199                 }
2200                 /* FALLTHRU */
2201                 op->o_req_dn = dni.dn;
2202                 op->o_req_ndn = dni.ndn;
2203                 if ( dni.renamed ) {
2204                         struct berval noldp, newp, nnewp;
2205
2206                         op->o_tag = LDAP_REQ_MODRDN;
2207                         dnRdn( &entry->e_name, &op->orr_newrdn );
2208                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2209
2210                         dnParent( &dni.ndn, &noldp );
2211                         dnParent( &entry->e_nname, &nnewp );
2212                         if ( !dn_match( &noldp, &nnewp ) ) {
2213                                 dnParent( &entry->e_name, &newp );
2214                                 op->orr_newSup = &newp;
2215                                 op->orr_nnewSup = &nnewp;
2216                         } else {
2217                                 op->orr_newSup = NULL;
2218                                 op->orr_nnewSup = NULL;
2219                         }
2220                         op->orr_deleteoldrdn = dni.delOldRDN;
2221                         op->orr_modlist = NULL;
2222                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2223                                 goto done;
2224                         }
2225
2226                         /* RDNs must be NUL-terminated for back-ldap */
2227                         noldp = op->orr_newrdn;
2228                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2229                         noldp = op->orr_nnewrdn;
2230                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2231
2232                         /* Setup opattrs too */
2233                         {
2234                                 static AttributeDescription *nullattr = NULL;
2235                                 static AttributeDescription **const opattrs[] = {
2236                                         &slap_schema.si_ad_entryCSN,
2237                                         &slap_schema.si_ad_modifiersName,
2238                                         &slap_schema.si_ad_modifyTimestamp,
2239                                         &nullattr
2240                                 };
2241                                 AttributeDescription *opattr;
2242                                 Modifications *mod, **modtail, **ml;
2243                                 int i;
2244
2245                                 for ( mod = op->orr_modlist;
2246                                         mod->sml_next;
2247                                         mod = mod->sml_next )
2248                                         ;
2249                                 modtail = &mod->sml_next;
2250
2251                                 /* pull mod off incoming modlist, append to orr_modlist */
2252                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2253                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2254                                         {
2255                                                 if ( (*ml)->sml_desc == opattr ) {
2256                                                         mod = *ml;
2257                                                         *ml = mod->sml_next;
2258                                                         mod->sml_next = NULL;
2259                                                         *modtail = mod;
2260                                                         modtail = &mod->sml_next;
2261                                                         break;
2262                                                 }
2263                                         }
2264                                 }
2265                         }
2266                         op->o_bd = si->si_wbe;
2267                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2268                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2269                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2270
2271                         slap_mods_free( op->orr_modlist, 1 );
2272                         Debug( LDAP_DEBUG_SYNC,
2273                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2274                                         si->si_ridtxt, rc, 0 );
2275                         op->o_bd = be;
2276                         goto done;
2277                 }
2278                 if ( dni.mods ) {
2279                         op->o_tag = LDAP_REQ_MODIFY;
2280                         op->orm_modlist = dni.mods;
2281                         op->orm_no_opattrs = 1;
2282                         op->o_bd = si->si_wbe;
2283
2284                         rc = op->o_bd->be_modify( op, &rs_modify );
2285                         slap_mods_free( op->orm_modlist, 1 );
2286                         op->orm_no_opattrs = 0;
2287                         Debug( LDAP_DEBUG_SYNC,
2288                                         "syncrepl_entry: %s be_modify (%d)\n",
2289                                         si->si_ridtxt, rc, 0 );
2290                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2291                                 Debug( LDAP_DEBUG_ANY,
2292                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2293                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2294                         }
2295                         op->o_bd = be;
2296                 } else {
2297                         Debug( LDAP_DEBUG_SYNC,
2298                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2299                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2300                 }
2301                 goto done;
2302         case LDAP_SYNC_DELETE :
2303                 if ( !BER_BVISNULL( &dni.dn ) ) {
2304                         op->o_req_dn = dni.dn;
2305                         op->o_req_ndn = dni.ndn;
2306                         op->o_tag = LDAP_REQ_DELETE;
2307                         op->o_bd = si->si_wbe;
2308                         rc = op->o_bd->be_delete( op, &rs_delete );
2309                         Debug( LDAP_DEBUG_SYNC,
2310                                         "syncrepl_entry: %s be_delete (%d)\n",
2311                                         si->si_ridtxt, rc, 0 );
2312
2313                         while ( rs_delete.sr_err == LDAP_SUCCESS
2314                                 && op->o_delete_glue_parent ) {
2315                                 op->o_delete_glue_parent = 0;
2316                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2317                                         slap_callback cb = { NULL };
2318                                         cb.sc_response = slap_null_cb;
2319                                         dnParent( &op->o_req_ndn, &pdn );
2320                                         op->o_req_dn = pdn;
2321                                         op->o_req_ndn = pdn;
2322                                         op->o_callback = &cb;
2323                                         op->o_bd->be_delete( op, &rs_delete );
2324                                 } else {
2325                                         break;
2326                                 }
2327                         }
2328                         op->o_bd = be;
2329                 }
2330                 goto done;
2331
2332         default :
2333                 Debug( LDAP_DEBUG_ANY,
2334                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2335                 goto done;
2336         }
2337
2338 done:
2339         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2340                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2341                 BER_BVZERO( &syncUUID_strrep );
2342         }
2343         if ( !BER_BVISNULL( &dni.ndn ) ) {
2344                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2345         }
2346         if ( !BER_BVISNULL( &dni.dn ) ) {
2347                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2348         }
2349         if ( entry ) {
2350                 entry_free( entry );
2351         }
2352         if ( syncCSN ) {
2353                 slap_graduate_commit_csn( op );
2354         }
2355         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2356                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2357         }
2358         BER_BVZERO( &op->o_csn );
2359         return rc;
2360 }
2361
2362 static struct berval gcbva[] = {
2363         BER_BVC("top"),
2364         BER_BVC("glue"),
2365         BER_BVNULL
2366 };
2367
2368 #define NP_DELETE_ONE   2
2369
2370 static void
2371 syncrepl_del_nonpresent(
2372         Operation *op,
2373         syncinfo_t *si,
2374         BerVarray uuids,
2375         struct sync_cookie *sc,
2376         int m )
2377 {
2378         Backend* be = op->o_bd;
2379         slap_callback   cb = { NULL };
2380         SlapReply       rs_search = {REP_RESULT};
2381         SlapReply       rs_delete = {REP_RESULT};
2382         SlapReply       rs_modify = {REP_RESULT};
2383         struct nonpresent_entry *np_list, *np_prev;
2384         int rc;
2385         AttributeName   an[2];
2386
2387         struct berval pdn = BER_BVNULL;
2388         struct berval csn;
2389
2390         op->o_req_dn = si->si_base;
2391         op->o_req_ndn = si->si_base;
2392
2393         cb.sc_response = nonpresent_callback;
2394         cb.sc_private = si;
2395
2396         op->o_callback = &cb;
2397         op->o_tag = LDAP_REQ_SEARCH;
2398         op->ors_scope = si->si_scope;
2399         op->ors_deref = LDAP_DEREF_NEVER;
2400         op->o_time = slap_get_time();
2401         op->ors_tlimit = SLAP_NO_LIMIT;
2402
2403
2404         if ( uuids ) {
2405                 Filter uf;
2406                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2407                 int i;
2408
2409                 op->ors_attrsonly = 1;
2410                 op->ors_attrs = slap_anlist_no_attrs;
2411                 op->ors_limit = NULL;
2412                 op->ors_filter = &uf;
2413
2414                 uf.f_ava = &eq;
2415                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2416                 uf.f_next = NULL;
2417                 uf.f_choice = LDAP_FILTER_EQUALITY;
2418                 si->si_refreshDelete |= NP_DELETE_ONE;
2419
2420                 for (i=0; uuids[i].bv_val; i++) {
2421                         op->ors_slimit = 1;
2422                         uf.f_av_value = uuids[i];
2423                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2424                         rc = be->be_search( op, &rs_search );
2425                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2426                 }
2427                 si->si_refreshDelete ^= NP_DELETE_ONE;
2428         } else {
2429                 Filter *cf, *of;
2430
2431                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2432                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2433                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2434                 op->ors_attrs = an;
2435                 op->ors_slimit = SLAP_NO_LIMIT;
2436                 op->ors_attrsonly = 0;
2437                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2438                 /* In multimaster, updates can continue to arrive while
2439                  * we're searching. Limit the search result to entries
2440                  * older than all of our cookie CSNs.
2441                  */
2442                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2443                         Filter *f;
2444                         int i;
2445                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2446                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2447                         f = cf;
2448                         f->f_choice = LDAP_FILTER_AND;
2449                         f->f_next = NULL;
2450                         f->f_and = f+1;
2451                         of = f->f_and;
2452                         for ( i=0; i<sc->numcsns; i++ ) {
2453                                 f = of;
2454                                 f->f_choice = LDAP_FILTER_LE;
2455                                 f->f_ava = (AttributeAssertion *)(f+1);
2456                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2457                                 f->f_av_value = sc->ctxcsn[i];
2458                                 f->f_next = (Filter *)(f->f_ava+1);
2459                                 of = f->f_next;
2460                         }
2461                         f->f_next = op->ors_filter;
2462                         of = op->ors_filter;
2463                         op->ors_filter = cf;
2464                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2465                 } else {
2466                         cf = NULL;
2467                         op->ors_filterstr = si->si_filterstr;
2468                 }
2469                 op->o_nocaching = 1;
2470
2471                 if ( limits_check( op, &rs_search ) == 0 ) {
2472                         rc = be->be_search( op, &rs_search );
2473                 }
2474                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2475                         op->o_tmpfree( cf, op->o_tmpmemctx );
2476                         op->ors_filter = of;
2477                 }
2478                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2479
2480         }
2481
2482         op->o_nocaching = 0;
2483
2484         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2485
2486                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2487                         csn = sc->ctxcsn[m];
2488                 } else {
2489                         csn = si->si_syncCookie.ctxcsn[0];
2490                 }
2491
2492                 op->o_bd = si->si_wbe;
2493                 slap_queue_csn( op, &csn );
2494
2495                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2496                 while ( np_list != NULL ) {
2497                         LDAP_LIST_REMOVE( np_list, npe_link );
2498                         np_prev = np_list;
2499                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2500                         op->o_tag = LDAP_REQ_DELETE;
2501                         op->o_callback = &cb;
2502                         cb.sc_response = null_callback;
2503                         cb.sc_private = si;
2504                         op->o_req_dn = *np_prev->npe_name;
2505                         op->o_req_ndn = *np_prev->npe_nname;
2506                         rc = op->o_bd->be_delete( op, &rs_delete );
2507                         Debug( LDAP_DEBUG_SYNC,
2508                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2509                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2510
2511                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2512                                 Modifications mod1, mod2;
2513                                 mod1.sml_op = LDAP_MOD_REPLACE;
2514                                 mod1.sml_flags = 0;
2515                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2516                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2517                                 mod1.sml_numvals = 2;
2518                                 mod1.sml_values = &gcbva[0];
2519                                 mod1.sml_nvalues = NULL;
2520                                 mod1.sml_next = &mod2;
2521
2522                                 mod2.sml_op = LDAP_MOD_REPLACE;
2523                                 mod2.sml_flags = 0;
2524                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2525                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2526                                 mod2.sml_numvals = 1;
2527                                 mod2.sml_values = &gcbva[1];
2528                                 mod2.sml_nvalues = NULL;
2529                                 mod2.sml_next = NULL;
2530
2531                                 op->o_tag = LDAP_REQ_MODIFY;
2532                                 op->orm_modlist = &mod1;
2533
2534                                 rc = op->o_bd->be_modify( op, &rs_modify );
2535                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2536                         }
2537
2538                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2539                                         op->o_delete_glue_parent ) {
2540                                 op->o_delete_glue_parent = 0;
2541                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2542                                         slap_callback cb = { NULL };
2543                                         cb.sc_response = slap_null_cb;
2544                                         dnParent( &op->o_req_ndn, &pdn );
2545                                         op->o_req_dn = pdn;
2546                                         op->o_req_ndn = pdn;
2547                                         op->o_callback = &cb;
2548                                         /* give it a root privil ? */
2549                                         op->o_bd->be_delete( op, &rs_delete );
2550                                 } else {
2551                                         break;
2552                                 }
2553                         }
2554
2555                         op->o_delete_glue_parent = 0;
2556
2557                         ber_bvfree( np_prev->npe_name );
2558                         ber_bvfree( np_prev->npe_nname );
2559                         ch_free( np_prev );
2560
2561                         if ( slapd_shutdown ) {
2562                                 break;
2563                         }
2564                 }
2565
2566                 slap_graduate_commit_csn( op );
2567                 op->o_bd = be;
2568
2569                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2570                 BER_BVZERO( &op->o_csn );
2571         }
2572
2573         return;
2574 }
2575
2576 int
2577 syncrepl_add_glue(
2578         Operation* op,
2579         Entry *e )
2580 {
2581         Backend *be = op->o_bd;
2582         slap_callback cb = { NULL };
2583         Attribute       *a;
2584         int     rc;
2585         int suffrdns;
2586         int i;
2587         struct berval dn = BER_BVNULL;
2588         struct berval ndn = BER_BVNULL;
2589         Entry   *glue;
2590         SlapReply       rs_add = {REP_RESULT};
2591         struct berval   ptr, nptr;
2592         char            *comma;
2593
2594         op->o_tag = LDAP_REQ_ADD;
2595         op->o_callback = &cb;
2596         cb.sc_response = null_callback;
2597         cb.sc_private = NULL;
2598
2599         dn = e->e_name;
2600         ndn = e->e_nname;
2601
2602         /* count RDNs in suffix */
2603         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2604                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2605                         comma++;
2606                         ptr.bv_len -= comma - ptr.bv_val;
2607                         ptr.bv_val = comma;
2608                         i++;
2609                 }
2610                 suffrdns = i;
2611         } else {
2612                 /* suffix is "" */
2613                 suffrdns = 0;
2614         }
2615
2616         /* Start with BE suffix */
2617         ptr = dn;
2618         for ( i = 0; i < suffrdns; i++ ) {
2619                 comma = ber_bvrchr( &ptr, ',' );
2620                 if ( comma != NULL ) {
2621                         ptr.bv_len = comma - ptr.bv_val;
2622                 } else {
2623                         ptr.bv_len = 0;
2624                         break;
2625                 }
2626         }
2627
2628         if ( !BER_BVISEMPTY( &ptr ) ) {
2629                 dn.bv_len -= ptr.bv_len + 1;
2630                 dn.bv_val += ptr.bv_len + 1;
2631         }
2632
2633         /* the normalizedDNs are always the same length, no counting
2634          * required.
2635          */
2636         nptr = ndn;
2637         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2638                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2639                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2640
2641                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2642
2643         } else {
2644                 nptr.bv_len = 0;
2645         }
2646
2647         while ( ndn.bv_val > e->e_nname.bv_val ) {
2648                 glue = entry_alloc();
2649                 ber_dupbv( &glue->e_name, &dn );
2650                 ber_dupbv( &glue->e_nname, &ndn );
2651
2652                 a = attr_alloc( slap_schema.si_ad_objectClass );
2653
2654                 a->a_numvals = 2;
2655                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2656                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2657                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2658                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2659
2660                 a->a_nvals = a->a_vals;
2661
2662                 a->a_next = glue->e_attrs;
2663                 glue->e_attrs = a;
2664
2665                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2666
2667                 a->a_numvals = 1;
2668                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2669                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2670                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2671
2672                 a->a_nvals = a->a_vals;
2673
2674                 a->a_next = glue->e_attrs;
2675                 glue->e_attrs = a;
2676
2677                 op->o_req_dn = glue->e_name;
2678                 op->o_req_ndn = glue->e_nname;
2679                 op->ora_e = glue;
2680                 rc = be->be_add ( op, &rs_add );
2681                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2682                         if ( op->ora_e == glue )
2683                                 be_entry_release_w( op, glue );
2684                 } else {
2685                 /* incl. ALREADY EXIST */
2686                         entry_free( glue );
2687                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2688                                 entry_free( e );
2689                                 return rc;
2690                         }
2691                 }
2692
2693                 /* Move to next child */
2694                 comma = ber_bvrchr( &ptr, ',' );
2695                 if ( comma == NULL ) {
2696                         break;
2697                 }
2698                 ptr.bv_len = comma - ptr.bv_val;
2699
2700                 dn.bv_val = ++comma;
2701                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2702
2703                 comma = ber_bvrchr( &nptr, ',' );
2704                 assert( comma != NULL );
2705                 nptr.bv_len = comma - nptr.bv_val;
2706
2707                 ndn.bv_val = ++comma;
2708                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2709         }
2710
2711         op->o_req_dn = e->e_name;
2712         op->o_req_ndn = e->e_nname;
2713         op->ora_e = e;
2714         rc = be->be_add ( op, &rs_add );
2715         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2716                 if ( op->ora_e == e )
2717                         be_entry_release_w( op, e );
2718         } else {
2719                 entry_free( e );
2720         }
2721
2722         return rc;
2723 }
2724
2725 static int
2726 syncrepl_updateCookie(
2727         syncinfo_t *si,
2728         Operation *op,
2729         struct berval *pdn,
2730         struct sync_cookie *syncCookie )
2731 {
2732         Backend *be = op->o_bd;
2733         Modifications mod;
2734         struct berval first = BER_BVNULL;
2735
2736         int rc, i, j, len;
2737
2738         slap_callback cb = { NULL };
2739         SlapReply       rs_modify = {REP_RESULT};
2740
2741         mod.sml_op = LDAP_MOD_REPLACE;
2742         mod.sml_desc = slap_schema.si_ad_contextCSN;
2743         mod.sml_type = mod.sml_desc->ad_cname;
2744         mod.sml_flags = SLAP_MOD_INTERNAL;
2745         mod.sml_nvalues = NULL;
2746         mod.sml_next = NULL;
2747
2748         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2749
2750         /* clone the cookieState CSNs so we can Replace the whole thing */
2751         mod.sml_numvals = si->si_cookieState->cs_num;
2752         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2753         for ( i=0; i<mod.sml_numvals; i++ )
2754                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2755         BER_BVZERO( &mod.sml_values[i] );
2756
2757         /* find any CSNs in the syncCookie that are newer than the cookieState */
2758         for ( i=0; i<syncCookie->numcsns; i++ ) {
2759                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2760                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2761                                 continue;
2762                         len = syncCookie->ctxcsn[i].bv_len;
2763                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2764                                 len = si->si_cookieState->cs_vals[j].bv_len;
2765                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2766                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2767                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2768                                 if ( BER_BVISNULL( &first ) ) {
2769                                         first = syncCookie->ctxcsn[i];
2770
2771                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2772                                 {
2773                                         first = syncCookie->ctxcsn[i];
2774                                 }
2775                         }
2776                         break;
2777                 }
2778                 /* there was no match for this SID, it's a new CSN */
2779                 if ( j == si->si_cookieState->cs_num ) {
2780                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2781                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2782                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2783                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2784                         if ( BER_BVISNULL( &first ) ) {
2785                                 first = syncCookie->ctxcsn[i];
2786                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2787                         {
2788                                 first = syncCookie->ctxcsn[i];
2789                         }
2790                 }
2791         }
2792         /* Should never happen, ITS#5065 */
2793         if ( BER_BVISNULL( &first )) {
2794                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2795                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2796                 return 0;
2797         }
2798         op->o_bd = si->si_wbe;
2799         slap_queue_csn( op, &first );
2800
2801         op->o_tag = LDAP_REQ_MODIFY;
2802
2803         cb.sc_response = null_callback;
2804         cb.sc_private = si;
2805
2806         op->o_callback = &cb;
2807         op->o_req_dn = op->o_bd->be_suffix[0];
2808         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2809
2810         /* update contextCSN */
2811         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2812
2813         op->orm_modlist = &mod;
2814         op->orm_no_opattrs = 1;
2815         rc = op->o_bd->be_modify( op, &rs_modify );
2816         op->orm_no_opattrs = 0;
2817         op->o_msgid = 0;
2818
2819         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2820                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2821                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2822                 /* If we replaced any old values */
2823                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2824                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2825                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2826                                                 &mod.sml_values[i] );
2827                 }
2828                 /* Handle any added values */
2829                 if ( i < mod.sml_numvals ) {
2830                         si->si_cookieState->cs_num = mod.sml_numvals;
2831                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2832                         free( si->si_cookieState->cs_sids );
2833                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2834                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2835                 }
2836
2837                 si->si_cookieState->cs_age++;
2838                 si->si_cookieAge = si->si_cookieState->cs_age;
2839         } else {
2840                 Debug( LDAP_DEBUG_ANY,
2841                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2842                         si->si_ridtxt, rs_modify.sr_err, 0 );
2843         }
2844         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2845
2846         op->o_bd = be;
2847         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2848         BER_BVZERO( &op->o_csn );
2849         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2850         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2851
2852         return rc;
2853 }
2854
2855 static void
2856 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2857         Modifications ***mret, Modifications ***mcur )
2858 {
2859         int i, j;
2860         Modifications *mod, **modtail;
2861
2862         modtail = *mret;
2863
2864         if ( old ) {
2865                 int n, o, nn, no;
2866                 struct berval **adds, **dels;
2867                 /* count old and new */
2868                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2869                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2870
2871                 /* there MUST be both old and new values */
2872                 assert( o != 0 );
2873                 assert( n != 0 );
2874                 j = 0;
2875
2876                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2877                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2878
2879                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2880                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2881
2882                 nn = n; no = o;
2883
2884                 for ( i=0; i<o; i++ ) {
2885                         for ( j=0; j<n; j++ ) {
2886                                 if ( !adds[j] )
2887                                         continue;
2888                                 if ( bvmatch( dels[i], adds[j] ) ) {
2889                                         no--;
2890                                         nn--;
2891                                         adds[j] = NULL;
2892                                         dels[i] = NULL;
2893                                         break;
2894                                 }
2895                         }
2896                 }
2897
2898                 /* Don't delete/add an objectClass, always use the replace op.
2899                  * Modify would fail if provider has replaced entry with a new,
2900                  * and the new explicitly includes a superior of a class that was
2901                  * only included implicitly in the old entry.  Ref ITS#5517.
2902                  */
2903                 if ( nn && no < o && old->a_desc == slap_schema.si_ad_objectClass )
2904                         no = o;
2905
2906                 i = j;
2907                 /* all old values were deleted, just use the replace op */
2908                 if ( no == o ) {
2909                         i = j-1;
2910                 } else if ( no ) {
2911                 /* delete some values */
2912                         mod = ch_malloc( sizeof( Modifications ) );
2913                         mod->sml_op = LDAP_MOD_DELETE;
2914                         mod->sml_flags = 0;
2915                         mod->sml_desc = old->a_desc;
2916                         mod->sml_type = mod->sml_desc->ad_cname;
2917                         mod->sml_numvals = no;
2918                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2919                         if ( old->a_vals != old->a_nvals ) {
2920                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2921                         } else {
2922                                 mod->sml_nvalues = NULL;
2923                         }
2924                         j = 0;
2925                         for ( i = 0; i < o; i++ ) {
2926                                 if ( !dels[i] ) continue;
2927                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2928                                 if ( mod->sml_nvalues ) {
2929                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2930                                 }
2931                                 j++;
2932                         }
2933                         BER_BVZERO( &mod->sml_values[j] );
2934                         if ( mod->sml_nvalues ) {
2935                                 BER_BVZERO( &mod->sml_nvalues[j] );
2936                         }
2937                         *modtail = mod;
2938                         modtail = &mod->sml_next;
2939                         i = j;
2940                 }
2941                 op->o_tmpfree( dels, op->o_tmpmemctx );
2942                 /* some values were added */
2943                 if ( nn && no < o ) {
2944                         mod = ch_malloc( sizeof( Modifications ) );
2945                         mod->sml_op = LDAP_MOD_ADD;
2946                         mod->sml_flags = 0;
2947                         mod->sml_desc = old->a_desc;
2948                         mod->sml_type = mod->sml_desc->ad_cname;
2949                         mod->sml_numvals = nn;
2950                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2951                         if ( old->a_vals != old->a_nvals ) {
2952                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2953                         } else {
2954                                 mod->sml_nvalues = NULL;
2955                         }
2956                         j = 0;
2957                         for ( i = 0; i < n; i++ ) {
2958                                 if ( !adds[i] ) continue;
2959                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2960                                 if ( mod->sml_nvalues ) {
2961                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2962                                 }
2963                                 j++;
2964                         }
2965                         BER_BVZERO( &mod->sml_values[j] );
2966                         if ( mod->sml_nvalues ) {
2967                                 BER_BVZERO( &mod->sml_nvalues[j] );
2968                         }
2969                         *modtail = mod;
2970                         modtail = &mod->sml_next;
2971                         i = j;
2972                 }
2973                 op->o_tmpfree( adds, op->o_tmpmemctx );
2974         } else {
2975                 /* new attr, just use the new mod */
2976                 i = 0;
2977                 j = 1;
2978         }
2979         /* advance to next element */
2980         mod = **mcur;
2981         if ( mod ) {
2982                 if ( i != j ) {
2983                         **mcur = mod->sml_next;
2984                         *modtail = mod;
2985                         modtail = &mod->sml_next;
2986                 } else {
2987                         *mcur = &mod->sml_next;
2988                 }
2989         }
2990         *mret = modtail;
2991 }
2992
2993 static int
2994 dn_callback(
2995         Operation*      op,
2996         SlapReply*      rs )
2997 {
2998         dninfo *dni = op->o_callback->sc_private;
2999
3000         if ( rs->sr_type == REP_SEARCH ) {
3001                 if ( !BER_BVISNULL( &dni->dn ) ) {
3002                         Debug( LDAP_DEBUG_ANY,
3003                                 "dn_callback : consistency error - "
3004                                 "entryUUID is not unique\n", 0, 0, 0 );
3005                 } else {
3006                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3007                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3008                         /* If there is a new entry, see if it differs from the old.
3009                          * We compare the non-normalized values so that cosmetic changes
3010                          * in the provider are always propagated.
3011                          */
3012                         if ( dni->new_entry ) {
3013                                 Modifications **modtail, **ml;
3014                                 Attribute *old, *new;
3015                                 int is_ctx;
3016
3017                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3018                                         &op->o_bd->be_nsuffix[0] );
3019
3020                                 /* Did the DN change?
3021                                  */
3022                                 if ( !dn_match( &rs->sr_entry->e_name,
3023                                                 &dni->new_entry->e_name ) )
3024                                 {
3025                                         struct berval oldRDN, oldVal;
3026                                         AttributeDescription *ad = NULL;
3027                                         Attribute *a;
3028
3029                                         dni->renamed = 1;
3030                                         /* See if the oldRDN was deleted */
3031                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3032                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3033                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3034                                                 oldRDN.bv_val );
3035                                         oldRDN.bv_len -= oldVal.bv_len + 2;
3036                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3037                                         a = attr_find( dni->new_entry->e_attrs, ad );
3038                                         if ( !a || attr_valfind( a,
3039                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3040                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3041                                                 SLAP_MR_VALUE_OF_SYNTAX,
3042                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3043                                         {
3044                                                 dni->delOldRDN = 1;
3045                                         }
3046                                         /* OK, this was just a modDN, we're done */
3047                                         return LDAP_SUCCESS;
3048                                 }
3049
3050                                 modtail = &dni->mods;
3051                                 ml = dni->modlist;
3052
3053                                 /* Make sure new entry is actually newer than old entry */
3054                                 old = attr_find( rs->sr_entry->e_attrs,
3055                                         slap_schema.si_ad_entryCSN );
3056                                 new = attr_find( dni->new_entry->e_attrs,
3057                                         slap_schema.si_ad_entryCSN );
3058                                 if ( new && old ) {
3059                                         int rc, len = old->a_vals[0].bv_len;
3060                                         if ( len > new->a_vals[0].bv_len )
3061                                                 len = new->a_vals[0].bv_len;
3062                                         rc = memcmp( old->a_vals[0].bv_val,
3063                                                 new->a_vals[0].bv_val, len );
3064                                         if ( rc > 0 ) {
3065                                                 Debug( LDAP_DEBUG_SYNC,
3066                                                         "dn_callback : new entry is older than ours "
3067                                                         "%s ours %s, new %s\n",
3068                                                         rs->sr_entry->e_name.bv_val,
3069                                                         old->a_vals[0].bv_val,
3070                                                         new->a_vals[0].bv_val );
3071                                                 return LDAP_SUCCESS;
3072                                         } else if ( rc == 0 ) {
3073                                                 Debug( LDAP_DEBUG_SYNC,
3074                                                         "dn_callback : entries have identical CSN "
3075                                                         "%s %s\n",
3076                                                         rs->sr_entry->e_name.bv_val,
3077                                                         old->a_vals[0].bv_val, 0 );
3078                                                 return LDAP_SUCCESS;
3079                                         }
3080                                 }
3081
3082                                 /* We assume that attributes are saved in the same order
3083                                  * in the remote and local databases. So if we walk through
3084                                  * the attributeDescriptions one by one they should match in
3085                                  * lock step. If not, look for an add or delete.
3086                                  */
3087                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3088                                                 old && new; )
3089                                 {
3090                                         /* If we've seen this before, use its mod now */
3091                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3092                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3093                                                 new = new->a_next;
3094                                                 continue;
3095                                         }
3096                                         /* Skip contextCSN */
3097                                         if ( is_ctx && old->a_desc ==
3098                                                 slap_schema.si_ad_contextCSN ) {
3099                                                 old = old->a_next;
3100                                                 continue;
3101                                         }
3102
3103                                         if ( old->a_desc != new->a_desc ) {
3104                                                 Modifications *mod;
3105                                                 Attribute *tmp;
3106
3107                                                 /* If it's just been re-added later,
3108                                                  * remember that we've seen it.
3109                                                  */
3110                                                 tmp = attr_find( new, old->a_desc );
3111                                                 if ( tmp ) {
3112                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3113                                                 } else {
3114                                                         /* If it's a new attribute, pull it in.
3115                                                          */
3116                                                         tmp = attr_find( old, new->a_desc );
3117                                                         if ( !tmp ) {
3118                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3119                                                                 new = new->a_next;
3120                                                                 continue;
3121                                                         }
3122                                                         /* Delete old attr */
3123                                                         mod = ch_malloc( sizeof( Modifications ) );
3124                                                         mod->sml_op = LDAP_MOD_DELETE;
3125                                                         mod->sml_flags = 0;
3126                                                         mod->sml_desc = old->a_desc;
3127                                                         mod->sml_type = mod->sml_desc->ad_cname;
3128                                                         mod->sml_numvals = 0;
3129                                                         mod->sml_values = NULL;
3130                                                         mod->sml_nvalues = NULL;
3131                                                         *modtail = mod;
3132                                                         modtail = &mod->sml_next;
3133                                                 }
3134                                                 old = old->a_next;
3135                                                 continue;
3136                                         }
3137                                         /* kludge - always update modifiersName so that it
3138                                          * stays co-located with the other mod opattrs. But only
3139                                          * if we know there are other valid mods.
3140                                          */
3141                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3142                                                 dni->mods )
3143                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3144                                         else
3145                                                 attr_cmp( op, old, new, &modtail, &ml );
3146                                         new = new->a_next;
3147                                         old = old->a_next;
3148                                 }
3149                                 *modtail = *ml;
3150                                 *ml = NULL;
3151                         }
3152                 }
3153         } else if ( rs->sr_type == REP_RESULT ) {
3154                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3155                         Debug( LDAP_DEBUG_ANY,
3156                                 "dn_callback : consistency error - "
3157                                 "entryUUID is not unique\n", 0, 0, 0 );
3158                 }
3159         }
3160
3161         return LDAP_SUCCESS;
3162 }
3163
3164 static int
3165 nonpresent_callback(
3166         Operation*      op,
3167         SlapReply*      rs )
3168 {
3169         syncinfo_t *si = op->o_callback->sc_private;
3170         Attribute *a;
3171         int count = 0;
3172         struct berval* present_uuid = NULL;
3173         struct nonpresent_entry *np_entry;
3174
3175         if ( rs->sr_type == REP_RESULT ) {
3176                 count = avl_free( si->si_presentlist, ch_free );
3177                 si->si_presentlist = NULL;
3178
3179         } else if ( rs->sr_type == REP_SEARCH ) {
3180                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3181                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3182
3183                         if ( a ) {
3184                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3185                                         syncuuid_cmp );
3186                         }
3187
3188                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3189                                 char buf[sizeof("rid=999 not")];
3190
3191                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3192                                         present_uuid ? "got" : "not" );
3193
3194                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3195                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3196                         }
3197
3198                         if ( a == NULL ) return 0;
3199                 }
3200
3201                 if ( present_uuid == NULL ) {
3202                         np_entry = (struct nonpresent_entry *)
3203                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3204                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3205                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3206                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3207
3208                 } else {
3209                         avl_delete( &si->si_presentlist,
3210                                 &a->a_nvals[0], syncuuid_cmp );
3211                         ch_free( present_uuid );
3212                 }
3213         }
3214         return LDAP_SUCCESS;
3215 }
3216
3217 static int
3218 null_callback(
3219         Operation*      op,
3220         SlapReply*      rs )
3221 {
3222         if ( rs->sr_err != LDAP_SUCCESS &&
3223                 rs->sr_err != LDAP_REFERRAL &&
3224                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3225                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3226                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3227         {
3228                 Debug( LDAP_DEBUG_ANY,
3229                         "null_callback : error code 0x%x\n",
3230                         rs->sr_err, 0, 0 );
3231         }
3232         return LDAP_SUCCESS;
3233 }
3234
3235 static struct berval *
3236 slap_uuidstr_from_normalized(
3237         struct berval* uuidstr,
3238         struct berval* normalized,
3239         void *ctx )
3240 {
3241 #if 0
3242         struct berval *new;
3243         unsigned char nibble;
3244         int i, d = 0;
3245
3246         if ( normalized == NULL ) return NULL;
3247         if ( normalized->bv_len != 16 ) return NULL;
3248
3249         if ( uuidstr ) {
3250                 new = uuidstr;
3251         } else {
3252                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3253                 if ( new == NULL ) {
3254                         return NULL;
3255                 }
3256         }
3257
3258         new->bv_len = 36;
3259
3260         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3261                 if ( new != uuidstr ) {
3262                         slap_sl_free( new, ctx );
3263                 }
3264                 return NULL;
3265         }
3266
3267         for ( i = 0; i < 16; i++ ) {
3268                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3269                         new->bv_val[(i<<1)+d] = '-';
3270                         d += 1;
3271                 }
3272
3273                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3274                 if ( nibble < 10 ) {
3275                         new->bv_val[(i<<1)+d] = nibble + '0';
3276                 } else {
3277                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3278                 }
3279
3280                 nibble = (normalized->bv_val[i]) & 0xF;
3281                 if ( nibble < 10 ) {
3282                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3283                 } else {
3284                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3285                 }
3286         }
3287
3288         new->bv_val[new->bv_len] = '\0';
3289         return new;
3290 #endif
3291
3292         struct berval   *new;
3293         int             rc = 0;
3294
3295         if ( normalized == NULL ) return NULL;
3296         if ( normalized->bv_len != 16 ) return NULL;
3297
3298         if ( uuidstr ) {
3299                 new = uuidstr;
3300
3301         } else {
3302                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3303                 if ( new == NULL ) {
3304                         return NULL;
3305                 }
3306         }
3307
3308         new->bv_len = 36;
3309
3310         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3311                 rc = 1;
3312                 goto done;
3313         }
3314
3315         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3316                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3317
3318 done:;
3319         if ( rc == -1 ) {
3320                 if ( new != NULL ) {
3321                         if ( new->bv_val != NULL ) {
3322                                 slap_sl_free( new->bv_val, ctx );
3323                         }
3324
3325                         if ( new != uuidstr ) {
3326                                 slap_sl_free( new, ctx );
3327                         }
3328                 }
3329                 new = NULL;
3330
3331         } else {
3332                 new->bv_len = rc;
3333         }
3334
3335         return new;
3336 }
3337
3338 static int
3339 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3340 {
3341         const struct berval *uuid1 = v_uuid1;
3342         const struct berval *uuid2 = v_uuid2;
3343         int rc = uuid1->bv_len - uuid2->bv_len;
3344         if ( rc ) return rc;
3345         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3346 }
3347
3348 void
3349 syncinfo_free( syncinfo_t *sie, int free_all )
3350 {
3351         syncinfo_t *si_next;
3352
3353         if ( free_all && sie->si_cookieState ) {
3354                 ch_free( sie->si_cookieState->cs_sids );
3355                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3356                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3357                 ch_free( sie->si_cookieState );
3358         }
3359         do {
3360                 si_next = sie->si_next;
3361
3362                 if ( sie->si_ld ) {
3363                         if ( sie->si_conn ) {
3364                                 connection_client_stop( sie->si_conn );
3365                                 sie->si_conn = NULL;
3366                         }
3367                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3368                 }
3369
3370                 /* re-fetch it, in case it was already removed */
3371                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3372                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3373                 if ( sie->si_re ) {
3374                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3375                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3376                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3377                 }
3378
3379                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3380                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3381
3382                 bindconf_free( &sie->si_bindconf );
3383
3384                 if ( sie->si_filterstr.bv_val ) {
3385                         ch_free( sie->si_filterstr.bv_val );
3386                 }
3387                 if ( sie->si_logfilterstr.bv_val ) {
3388                         ch_free( sie->si_logfilterstr.bv_val );
3389                 }
3390                 if ( sie->si_base.bv_val ) {
3391                         ch_free( sie->si_base.bv_val );
3392                 }
3393                 if ( sie->si_logbase.bv_val ) {
3394                         ch_free( sie->si_logbase.bv_val );
3395                 }
3396                 if ( sie->si_attrs ) {
3397                         int i = 0;
3398                         while ( sie->si_attrs[i] != NULL ) {
3399                                 ch_free( sie->si_attrs[i] );
3400                                 i++;
3401                         }
3402                         ch_free( sie->si_attrs );
3403                 }
3404                 if ( sie->si_exattrs ) {
3405                         int i = 0;
3406                         while ( sie->si_exattrs[i] != NULL ) {
3407                                 ch_free( sie->si_exattrs[i] );
3408                                 i++;
3409                         }
3410                         ch_free( sie->si_exattrs );
3411                 }
3412                 if ( sie->si_anlist ) {
3413                         int i = 0;
3414                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3415                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3416                                 i++;
3417                         }
3418                         ch_free( sie->si_anlist );
3419                 }
3420                 if ( sie->si_exanlist ) {
3421                         int i = 0;
3422                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3423                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3424                                 i++;
3425                         }
3426                         ch_free( sie->si_exanlist );
3427                 }
3428                 if ( sie->si_retryinterval ) {
3429                         ch_free( sie->si_retryinterval );
3430                 }
3431                 if ( sie->si_retrynum ) {
3432                         ch_free( sie->si_retrynum );
3433                 }
3434                 if ( sie->si_retrynum_init ) {
3435                         ch_free( sie->si_retrynum_init );
3436                 }
3437                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3438                 if ( sie->si_presentlist ) {
3439                     avl_free( sie->si_presentlist, ch_free );
3440                 }
3441                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3442                         struct nonpresent_entry* npe;
3443                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3444                         LDAP_LIST_REMOVE( npe, npe_link );
3445                         if ( npe->npe_name ) {
3446                                 if ( npe->npe_name->bv_val ) {
3447                                         ch_free( npe->npe_name->bv_val );
3448                                 }
3449                                 ch_free( npe->npe_name );
3450                         }
3451                         if ( npe->npe_nname ) {
3452                                 if ( npe->npe_nname->bv_val ) {
3453                                         ch_free( npe->npe_nname->bv_val );
3454                                 }
3455                                 ch_free( npe->npe_nname );
3456                         }
3457                         ch_free( npe );
3458                 }
3459                 ch_free( sie );
3460                 sie = si_next;
3461         } while ( free_all && si_next );
3462 }
3463
3464
3465
3466 /* NOTE: used & documented in slapd.conf(5) */
3467 #define IDSTR                   "rid"
3468 #define PROVIDERSTR             "provider"
3469 #define SCHEMASTR               "schemachecking"
3470 #define FILTERSTR               "filter"
3471 #define SEARCHBASESTR           "searchbase"
3472 #define SCOPESTR                "scope"
3473 #define ATTRSONLYSTR            "attrsonly"
3474 #define ATTRSSTR                "attrs"
3475 #define TYPESTR                 "type"
3476 #define INTERVALSTR             "interval"
3477 #define RETRYSTR                "retry"
3478 #define SLIMITSTR               "sizelimit"
3479 #define TLIMITSTR               "timelimit"
3480 #define SYNCDATASTR             "syncdata"
3481 #define LOGBASESTR              "logbase"
3482 #define LOGFILTERSTR    "logfilter"
3483
3484 /* FIXME: undocumented */
3485 #define EXATTRSSTR              "exattrs"
3486 #define MANAGEDSAITSTR          "manageDSAit"
3487
3488 /* mandatory */
3489 #define GOT_ID                  0x0001
3490 #define GOT_PROVIDER    0x0002
3491 #define GOT_BASE                0x0004
3492
3493 /* check */
3494 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3495
3496 static struct {
3497         struct berval key;
3498         int val;
3499 } scopes[] = {
3500         { BER_BVC("base"), LDAP_SCOPE_BASE },
3501         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3502         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3503         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3504         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3505         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3506         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3507         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3508         { BER_BVNULL, 0 }
3509 };
3510
3511 static slap_verbmasks datamodes[] = {
3512         { BER_BVC("default"), SYNCDATA_DEFAULT },
3513         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3514         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3515         { BER_BVNULL, 0 }
3516 };
3517
3518 static int
3519 parse_syncrepl_line(
3520         ConfigArgs      *c,
3521         syncinfo_t      *si )
3522 {
3523         int     gots = 0;
3524         int     i;
3525         char    *val;
3526
3527         for ( i = 1; i < c->argc; i++ ) {
3528                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3529                                         STRLENOF( IDSTR "=" ) ) )
3530                 {
3531                         int tmp;
3532                         /* '\0' string terminator accounts for '=' */
3533                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3534                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3535                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3536                                         "Error: parse_syncrepl_line: "
3537                                         "unable to parse syncrepl id \"%s\"", val );
3538                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3539                                 return -1;
3540                         }
3541                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3542                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3543                                         "Error: parse_syncrepl_line: "
3544                                         "syncrepl id %d is out of range [0..4095]", tmp );
3545                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3546                                 return -1;
3547                         }
3548                         si->si_rid = tmp;
3549                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3550                         gots |= GOT_ID;
3551                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3552                                         STRLENOF( PROVIDERSTR "=" ) ) )
3553                 {
3554                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3555                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3556                         gots |= GOT_PROVIDER;
3557                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3558                                         STRLENOF( SCHEMASTR "=" ) ) )
3559                 {
3560                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3561                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3562                                 si->si_schemachecking = 1;
3563                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3564                                 si->si_schemachecking = 0;
3565                         } else {
3566                                 si->si_schemachecking = 1;
3567                         }
3568                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3569                                         STRLENOF( FILTERSTR "=" ) ) )
3570                 {
3571                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3572                         if ( si->si_filterstr.bv_val )
3573                                 ch_free( si->si_filterstr.bv_val );
3574                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3575                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3576                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3577                 {
3578                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3579                         if ( si->si_logfilterstr.bv_val )
3580                                 ch_free( si->si_logfilterstr.bv_val );
3581                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3582                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3583                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3584                 {
3585                         struct berval   bv;
3586                         int             rc;
3587
3588                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3589                         if ( si->si_base.bv_val ) {
3590                                 ch_free( si->si_base.bv_val );
3591                         }
3592                         ber_str2bv( val, 0, 0, &bv );
3593                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3594                         if ( rc != LDAP_SUCCESS ) {
3595                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3596                                         "Invalid base DN \"%s\": %d (%s)",
3597                                         val, rc, ldap_err2string( rc ) );
3598                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3599                                 return -1;
3600                         }
3601                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3602                                 ch_free( si->si_base.bv_val );
3603                                 BER_BVZERO( &si->si_base );
3604                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3605                                         "Base DN \"%s\" is not within the database naming context",
3606                                         val );
3607                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3608                                 return -1;
3609                         }
3610                         gots |= GOT_BASE;
3611                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3612                                         STRLENOF( LOGBASESTR "=" ) ) )
3613                 {
3614                         struct berval   bv;
3615                         int             rc;
3616
3617                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3618                         if ( si->si_logbase.bv_val ) {
3619                                 ch_free( si->si_logbase.bv_val );
3620                         }
3621                         ber_str2bv( val, 0, 0, &bv );
3622                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3623                         if ( rc != LDAP_SUCCESS ) {
3624                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3625                                         "Invalid logbase DN \"%s\": %d (%s)",
3626                                         val, rc, ldap_err2string( rc ) );
3627                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3628                                 return -1;
3629                         }
3630                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3631                                         STRLENOF( SCOPESTR "=" ) ) )
3632                 {
3633                         int j;
3634                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3635                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3636                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3637                                         si->si_scope = scopes[j].val;
3638                                         break;
3639                                 }
3640                         }
3641                         if ( BER_BVISNULL(&scopes[j].key) ) {
3642                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3643                                         "Error: parse_syncrepl_line: "
3644                                         "unknown scope \"%s\"", val);
3645                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3646                                 return -1;
3647                         }
3648                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3649                                         STRLENOF( ATTRSONLYSTR ) ) )
3650                 {
3651                         si->si_attrsonly = 1;
3652                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3653                                         STRLENOF( ATTRSSTR "=" ) ) )
3654                 {
3655                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3656                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3657                                 char *attr_fname;
3658                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3659                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3660                                 if ( si->si_anlist == NULL ) {
3661                                         ch_free( attr_fname );
3662                                         return -1;
3663                                 }
3664                                 si->si_anfile = attr_fname;
3665                         } else {
3666                                 char *str, *s, *next;
3667                                 const char *delimstr = " ,\t";
3668                                 str = ch_strdup( val );
3669                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3670                                                 s != NULL;
3671                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3672                                 {
3673                                         if ( strlen(s) == 1 && *s == '*' ) {
3674                                                 si->si_allattrs = 1;
3675                                                 val[ s - str ] = delimstr[0];
3676                                         }
3677                                         if ( strlen(s) == 1 && *s == '+' ) {
3678                                                 si->si_allopattrs = 1;
3679                                                 val [ s - str ] = delimstr[0];
3680                                         }
3681                                 }
3682                                 ch_free( str );
3683                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3684                                 if ( si->si_anlist == NULL ) {
3685                                         return -1;
3686                                 }
3687                         }
3688                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3689                                         STRLENOF( EXATTRSSTR "=" ) ) )
3690                 {
3691                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3692                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3693                                 char *attr_fname;
3694                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3695                                 si->si_exanlist = file2anlist(
3696                                         si->si_exanlist, attr_fname, " ,\t" );
3697                                 if ( si->si_exanlist == NULL ) {
3698                                         ch_free( attr_fname );
3699                                         return -1;
3700                                 }
3701                                 ch_free( attr_fname );
3702                         } else {
3703                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3704                                 if ( si->si_exanlist == NULL ) {
3705                                         return -1;
3706                                 }
3707                         }
3708                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3709                                         STRLENOF( TYPESTR "=" ) ) )
3710                 {
3711                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3712                         if ( !strncasecmp( val, "refreshOnly",
3713                                                 STRLENOF("refreshOnly") ) )
3714                         {
3715                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3716                         } else if ( !strncasecmp( val, "refreshAndPersist",
3717                                                 STRLENOF("refreshAndPersist") ) )
3718                         {
3719                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3720                                 si->si_interval = 60;
3721                         } else {
3722                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3723                                         "Error: parse_syncrepl_line: "
3724                                         "unknown sync type \"%s\"", val);
3725                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3726                                 return -1;
3727                         }
3728                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3729                                         STRLENOF( INTERVALSTR "=" ) ) )
3730                 {
3731                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3732                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3733                                 si->si_interval = 0;
3734                         } else if ( strchr( val, ':' ) != NULL ) {
3735                                 char *next, *ptr = val;
3736                                 int dd, hh, mm, ss;
3737
3738                                 dd = strtol( ptr, &next, 10 );
3739                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3740                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3741                                                 "Error: parse_syncrepl_line: "
3742                                                 "invalid interval \"%s\", unable to parse days", val );
3743                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3744                                         return -1;
3745                                 }
3746                                 ptr = next + 1;
3747                                 hh = strtol( ptr, &next, 10 );
3748                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3749                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3750                                                 "Error: parse_syncrepl_line: "
3751                                                 "invalid interval \"%s\", unable to parse hours", val );
3752                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3753                                         return -1;
3754                                 }
3755                                 ptr = next + 1;
3756                                 mm = strtol( ptr, &next, 10 );
3757                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3758                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3759                                                 "Error: parse_syncrepl_line: "
3760                                                 "invalid interval \"%s\", unable to parse minutes", val );
3761                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3762                                         return -1;
3763                                 }
3764                                 ptr = next + 1;
3765                                 ss = strtol( ptr, &next, 10 );
3766                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3767                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3768                                                 "Error: parse_syncrepl_line: "
3769                                                 "invalid interval \"%s\", unable to parse seconds", val );
3770                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3771                                         return -1;
3772                                 }
3773                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3774                         } else {
3775                                 unsigned long   t;
3776
3777                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3778                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3779                                                 "Error: parse_syncrepl_line: "
3780                                                 "invalid interval \"%s\"", val );
3781                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3782                                         return -1;
3783                                 }
3784                                 si->si_interval = (time_t)t;
3785                         }
3786                         if ( si->si_interval < 0 ) {
3787                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3788                                         "Error: parse_syncrepl_line: "
3789                                         "invalid interval \"%ld\"",
3790                                         (long) si->si_interval);
3791                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3792                                 return -1;
3793                         }
3794                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3795                                         STRLENOF( RETRYSTR "=" ) ) )
3796                 {
3797                         char **retry_list;
3798                         int j, k, n;
3799
3800                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3801                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3802                         retry_list[0] = NULL;
3803
3804                         slap_str2clist( &retry_list, val, " ,\t" );
3805
3806                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3807                         n = k / 2;
3808                         if ( k % 2 ) {
3809                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3810                                         "Error: incomplete syncrepl retry list" );
3811                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3812                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3813                                         ch_free( retry_list[k] );
3814                                 }
3815                                 ch_free( retry_list );
3816                                 return 1;
3817                         }
3818                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3819                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3820                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3821                         for ( j = 0; j < n; j++ ) {
3822                                 unsigned long   t;
3823                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3824                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3825                                                 "Error: invalid retry interval \"%s\" (#%d)",
3826                                                 retry_list[j*2], j );
3827                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3828                                         /* do some cleanup */
3829                                         return 1;
3830                                 }
3831                                 si->si_retryinterval[j] = (time_t)t;
3832                                 if ( *retry_list[j*2+1] == '+' ) {
3833                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3834                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3835                                         j++;
3836                                         break;
3837                                 } else {
3838                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3839                                                         || si->si_retrynum_init[j] <= 0 )
3840                                         {
3841                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3842                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3843                                                         retry_list[j*2+1], j );
3844                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3845                                                 /* do some cleanup */
3846                                                 return 1;
3847                                         }
3848                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3849                                                         || si->si_retrynum[j] <= 0 )
3850                                         {
3851                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3852                                                         "Error: invalid retry number \"%s\" (#%d)",
3853                                                         retry_list[j*2+1], j );
3854                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3855                                                 /* do some cleanup */
3856                                                 return 1;
3857                                         }
3858                                 }
3859                         }
3860                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3861                         si->si_retrynum[j] = RETRYNUM_TAIL;
3862                         si->si_retryinterval[j] = 0;
3863
3864                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3865                                 ch_free( retry_list[k] );
3866                         }
3867                         ch_free( retry_list );
3868                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3869                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3870                 {
3871                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3872                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3873                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3874                         {
3875                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3876                                         "invalid manageDSAit value \"%s\".\n",
3877                                         val );
3878                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3879                                 return 1;
3880                         }
3881                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3882                                         STRLENOF( SLIMITSTR "=") ) )
3883                 {
3884                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3885                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3886                                 si->si_slimit = 0;
3887
3888                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3889                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3890                                         "invalid size limit value \"%s\".\n",
3891                                         val );
3892                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3893                                 return 1;
3894                         }
3895                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3896                                         STRLENOF( TLIMITSTR "=" ) ) )
3897                 {
3898                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3899                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3900                                 si->si_tlimit = 0;
3901
3902                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3903                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3904                                         "invalid time limit value \"%s\".\n",
3905                                         val );
3906                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3907                                 return 1;
3908                         }
3909                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3910                                         STRLENOF( SYNCDATASTR "=" ) ) )
3911                 {
3912                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3913                         si->si_syncdata = verb_to_mask( val, datamodes );
3914                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3915                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3916                                 "Error: parse_syncrepl_line: "
3917                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3918                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3919                         return -1;
3920                 }
3921         }
3922
3923         if ( gots != GOT_ALL ) {
3924                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3925                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3926                         gots & GOT_ID ? "" : " "IDSTR,
3927                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3928                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3929                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3930                 return -1;
3931         }
3932
3933         return 0;
3934 }
3935
3936 static int
3937 add_syncrepl(
3938         ConfigArgs *c )
3939 {
3940         syncinfo_t *si;
3941         int     rc = 0;
3942
3943         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3944                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3945                         "operations required for syncrepl", c->be->be_type );
3946                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3947                 return 1;
3948         }
3949         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3950                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3951                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3952                 return 1;
3953         }
3954         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3955
3956         if ( si == NULL ) {
3957                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3958                 return 1;
3959         }
3960
3961         si->si_bindconf.sb_tls = SB_TLS_OFF;
3962         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3963         si->si_schemachecking = 0;
3964         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3965                 &si->si_filterstr );
3966         si->si_base.bv_val = NULL;
3967         si->si_scope = LDAP_SCOPE_SUBTREE;
3968         si->si_attrsonly = 0;
3969         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3970         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3971         si->si_attrs = NULL;
3972         si->si_allattrs = 0;
3973         si->si_allopattrs = 0;
3974         si->si_exattrs = NULL;
3975         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3976         si->si_interval = 86400;
3977         si->si_retryinterval = NULL;
3978         si->si_retrynum_init = NULL;
3979         si->si_retrynum = NULL;
3980         si->si_manageDSAit = 0;
3981         si->si_tlimit = 0;
3982         si->si_slimit = 0;
3983
3984         si->si_presentlist = NULL;
3985         LDAP_LIST_INIT( &si->si_nonpresentlist );
3986         ldap_pvt_thread_mutex_init( &si->si_mutex );
3987
3988         rc = parse_syncrepl_line( c, si );
3989
3990         if ( rc == 0 ) {
3991                 /* Must be LDAPv3 because we need controls */
3992                 switch ( si->si_bindconf.sb_version ) {
3993                 case 0:
3994                         /* not explicitly set */
3995                         si->si_bindconf.sb_version = LDAP_VERSION3;
3996                         break;
3997                 case 3:
3998                         /* explicitly set */
3999                         break;
4000                 default:
4001                         Debug( LDAP_DEBUG_ANY,
4002                                 "version %d incompatible with syncrepl\n",
4003                                 si->si_bindconf.sb_version, 0, 0 );
4004                         syncinfo_free( si, 0 );
4005                         return 1;
4006                 }
4007
4008                 si->si_be = c->be;
4009                 if ( slapMode & SLAP_SERVER_MODE ) {
4010                         Listener **l = slapd_get_listeners();
4011                         int isMe = 0;
4012
4013                         /* check if URL points to current server. If so, ignore
4014                          * this configuration. We require an exact match. Just
4015                          * in case they really want to do this, they can vary
4016                          * the case of the URL to allow it.
4017                          */
4018                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4019                                 int i;
4020                                 for ( i=0; l[i]; i++ ) {
4021                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4022                                                 isMe = 1;
4023                                                 break;
4024                                         }
4025                                 }
4026                         }
4027
4028                         if ( !isMe ) {
4029                                 init_syncrepl( si );
4030                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4031                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4032                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4033                                         si->si_ridtxt );
4034                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4035                                 if ( si->si_re )
4036                                         rc = config_sync_shadow( c ) ? -1 : 0;
4037                                 else
4038                                         rc = -1;
4039                         }
4040                 } else {
4041                         /* mirrormode still needs to see this flag in tool mode */
4042                         rc = config_sync_shadow( c ) ? -1 : 0;
4043                 }
4044         }
4045
4046 #ifdef HAVE_TLS
4047         /* Use main slapd defaults */
4048         bindconf_tls_defaults( &si->si_bindconf );
4049 #endif
4050         if ( rc < 0 ) {
4051                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4052                 syncinfo_free( si, 0 );
4053                 return 1;
4054         } else {
4055                 Debug( LDAP_DEBUG_CONFIG,
4056                         "Config: ** successfully added syncrepl \"%s\"\n",
4057                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4058                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4059                 if ( !si->si_schemachecking ) {
4060                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
4061                 }
4062                 if ( c->be->be_syncinfo ) {
4063                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4064                 } else {
4065                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4066                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4067                 }
4068                 si->si_next = c->be->be_syncinfo;
4069                 c->be->be_syncinfo = si;
4070                 return 0;
4071         }
4072 }
4073
4074 static void
4075 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4076 {
4077         struct berval bc, uri;
4078         char buf[BUFSIZ*2], *ptr;
4079         int i;
4080
4081 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
4082
4083         BER_BVZERO( bv );
4084
4085         /* temporarily inhibit bindconf from printing URI */
4086         uri = si->si_bindconf.sb_uri;
4087         BER_BVZERO( &si->si_bindconf.sb_uri );
4088         si->si_bindconf.sb_version = 0;
4089         bindconf_unparse( &si->si_bindconf, &bc );
4090         si->si_bindconf.sb_uri = uri;
4091         si->si_bindconf.sb_version = LDAP_VERSION3;
4092
4093         ptr = buf;
4094         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4095         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4096                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4097         if ( ptr - buf >= sizeof( buf ) ) return;
4098         if ( !BER_BVISNULL( &bc ) ) {
4099                 if ( WHATSLEFT <= bc.bv_len ) {
4100                         free( bc.bv_val );
4101                         return;
4102                 }
4103                 ptr = lutil_strcopy( ptr, bc.bv_val );
4104                 free( bc.bv_val );
4105         }
4106         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4107                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4108                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4109                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4110                 *ptr++ = '"';
4111         }
4112         if ( !BER_BVISNULL( &si->si_base ) ) {
4113                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4114                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4115                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4116                 *ptr++ = '"';
4117         }
4118         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4119                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4120                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4121                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4122                 *ptr++ = '"';
4123         }
4124         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4125                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4126                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4127                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4128                 *ptr++ = '"';
4129         }
4130         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4131                 if ( si->si_scope == scopes[i].val ) {
4132                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4133                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4134                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4135                         break;
4136                 }
4137         }
4138         if ( si->si_attrsonly ) {
4139                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4140                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4141         }
4142         if ( si->si_anfile ) {
4143                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4144                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4145                 ptr = lutil_strcopy( ptr, si->si_anfile );
4146                 *ptr++ = '"';
4147         } else if ( si->si_allattrs || si->si_allopattrs ||
4148                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4149         {
4150                 char *old;
4151
4152                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4153                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4154                 old = ptr;
4155                 /* FIXME: add check for overflow */
4156                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4157                 if ( si->si_allattrs ) {
4158                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4159                         if ( old != ptr ) *ptr++ = ',';
4160                         *ptr++ = '*';
4161                 }
4162                 if ( si->si_allopattrs ) {
4163                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4164                         if ( old != ptr ) *ptr++ = ',';
4165                         *ptr++ = '+';
4166                 }
4167                 *ptr++ = '"';
4168         }
4169         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4170                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4171                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4172                 /* FIXME: add check for overflow */
4173                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4174         }
4175         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4176         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4177         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4178
4179         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4180         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4181         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4182                 "refreshAndPersist" : "refreshOnly" );
4183
4184         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4185                 int dd, hh, mm, ss;
4186
4187                 dd = si->si_interval;
4188                 ss = dd % 60;
4189                 dd /= 60;
4190                 mm = dd % 60;
4191                 dd /= 60;
4192                 hh = dd % 24;
4193                 dd /= 24;
4194                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4195                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4196                 if ( ptr - buf >= sizeof( buf ) ) return;
4197         } else if ( si->si_retryinterval ) {
4198                 int space=0;
4199                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4200                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4201                 for (i=0; si->si_retryinterval[i]; i++) {
4202                         if ( space ) *ptr++ = ' ';
4203                         space = 1;
4204                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4205                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4206                                 *ptr++ = '+';
4207                         else
4208                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4209                 }
4210                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4211                 *ptr++ = '"';
4212         }
4213
4214         if ( si->si_slimit ) {
4215                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4216                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4217                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4218         }
4219
4220         if ( si->si_tlimit ) {
4221                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4222                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4223                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4224         }
4225
4226         if ( si->si_syncdata ) {
4227                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4228                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4229                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4230                         ptr = lutil_strcopy( ptr, bc.bv_val );
4231                 }
4232         }
4233         bc.bv_len = ptr - buf;
4234         bc.bv_val = buf;
4235         ber_dupbv( bv, &bc );
4236 }
4237
4238 int
4239 syncrepl_config( ConfigArgs *c )
4240 {
4241         if (c->op == SLAP_CONFIG_EMIT) {
4242                 if ( c->be->be_syncinfo ) {
4243                         struct berval bv;
4244                         syncinfo_t *si;
4245
4246                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4247                                 syncrepl_unparse( si, &bv );
4248                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4249                         }
4250                         return 0;
4251                 }
4252                 return 1;
4253         } else if ( c->op == LDAP_MOD_DELETE ) {
4254                 cookie_state *cs = NULL;
4255                 if ( c->be->be_syncinfo ) {
4256                         syncinfo_t *si, **sip;
4257                         int i;
4258
4259                         cs = c->be->be_syncinfo->si_cookieState;
4260                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4261                                 si = *sip;
4262                                 if ( c->valx == -1 || i == c->valx ) {
4263                                         int isrunning = 0;
4264                                         *sip = si->si_next;
4265                                         /* If the task is currently active, we have to leave
4266                                          * it running. It will exit on its own. This will only
4267                                          * happen when running on the cn=config DB.
4268                                          */
4269                                         if ( si->si_re ) {
4270                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4271                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4272                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4273                                         }
4274                                         if ( si->si_re && isrunning ) {
4275                                                 si->si_ctype = 0;
4276                                         } else {
4277                                                 syncinfo_free( si, 0 );
4278                                         }
4279                                         if ( i == c->valx )
4280                                                 break;
4281                                 } else {
4282                                         sip = &si->si_next;
4283                                 }
4284                         }
4285                 }
4286                 if ( !c->be->be_syncinfo ) {
4287                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4288                         if ( cs ) {
4289                                 ber_bvarray_free( cs->cs_vals );
4290                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4291                                 ch_free( cs );
4292                         }
4293                 }
4294                 return 0;
4295         }
4296         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4297                 Debug(LDAP_DEBUG_ANY, "%s: "
4298                         "syncrepl: database already shadowed.\n",
4299                         c->log, 0, 0);
4300                 return(1);
4301         } else {
4302                 return add_syncrepl( c );
4303         }
4304 }