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, do_setup = 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 must never be more than one instance active */
1218         if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex ))
1219                 return NULL;
1220
1221         switch( abs( si->si_type ) ) {
1222         case LDAP_SYNC_REFRESH_ONLY:
1223         case LDAP_SYNC_REFRESH_AND_PERSIST:
1224                 break;
1225         default:
1226                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1227                 return NULL;
1228         }
1229
1230         if ( slapd_shutdown ) {
1231                 if ( si->si_ld ) {
1232                         if ( si->si_conn ) {
1233                                 connection_client_stop( si->si_conn );
1234                                 si->si_conn = NULL;
1235                         }
1236                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1237                         si->si_ld = NULL;
1238                 }
1239                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1240                 return NULL;
1241         }
1242
1243         connection_fake_init( &conn, &opbuf, ctx );
1244         op = &opbuf.ob_op;
1245
1246         /* use global malloc for now */
1247         op->o_tmpmemctx = NULL;
1248         op->o_tmpmfuncs = &ch_mfuncs;
1249
1250         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1251         be = si->si_be;
1252
1253         /* Coordinate contextCSN updates with any syncprov overlays
1254          * in use. This may be complicated by the use of the glue
1255          * overlay.
1256          *
1257          * Typically there is a single syncprov mastering the entire
1258          * glued tree. In that case, our contextCSN updates should
1259          * go to the master DB. But if there is no syncprov on the
1260          * master DB, then nothing special is needed here.
1261          *
1262          * Alternatively, there may be individual syncprov overlays
1263          * on each glued branch. In that case, each syncprov only
1264          * knows about changes within its own branch. And so our
1265          * contextCSN updates should only go to the local DB.
1266          */
1267         if ( !si->si_wbe ) {
1268                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1269                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1270                         if ( overlay_is_inst( top_be, "syncprov" ))
1271                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1272                         else
1273                                 si->si_wbe = be;
1274                 } else {
1275                         si->si_wbe = be;
1276                 }
1277         }
1278         if ( !si->si_schemachecking )
1279                 op->o_no_schema_check = 1;
1280
1281         /* Establish session, do search */
1282         if ( !si->si_ld ) {
1283                 si->si_refreshDelete = 0;
1284                 si->si_refreshPresent = 0;
1285
1286                 /* use main DB when retrieving contextCSN */
1287                 op->o_bd = si->si_wbe;
1288                 op->o_dn = op->o_bd->be_rootdn;
1289                 op->o_ndn = op->o_bd->be_rootndn;
1290                 rc = do_syncrep1( op, si );
1291         }
1292
1293 reload:
1294         /* Process results */
1295         if ( rc == LDAP_SUCCESS ) {
1296                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1297
1298                 /* use current DB */
1299                 op->o_bd = be;
1300                 op->o_dn = op->o_bd->be_rootdn;
1301                 op->o_ndn = op->o_bd->be_rootndn;
1302                 rc = do_syncrep2( op, si );
1303                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1304                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1305                         goto reload;
1306                 }
1307
1308                 /* We got deleted while running on cn=config */
1309                 if ( !si->si_ctype ) {
1310                         if ( si->si_conn )
1311                                 dostop = 1;
1312                         rc = -1;
1313                 }
1314
1315                 if ( rc != SYNC_PAUSED ) {
1316                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1317                                 /* If we succeeded, enable the connection for further listening.
1318                                  * If we failed, tear down the connection and reschedule.
1319                                  */
1320                                 if ( rc == LDAP_SUCCESS ) {
1321                                         if ( si->si_conn ) {
1322                                                 connection_client_enable( si->si_conn );
1323                                                 goto success;
1324                                         } else {
1325                                                 do_setup = 1;
1326                                         }
1327                                 } else if ( si->si_conn ) {
1328                                         dostop = 1;
1329                                 }
1330                         } else {
1331                                 if ( rc == -2 ) rc = 0;
1332                         }
1333                 }
1334         }
1335
1336         /* At this point, we have 5 cases:
1337          * 1) for any hard failure, give up and remove this task
1338          * 2) for ServerDown, reschedule this task to run later
1339          * 3) for threadpool pause, reschedule to run immediately
1340          * 4) for Refresh and Success, reschedule to run
1341          * 5) for Persist and Success, reschedule to defer
1342          */
1343         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1344
1345         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1346                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1347         }
1348
1349         if ( dostop ) {
1350                 connection_client_stop( si->si_conn );
1351                 si->si_conn = NULL;
1352         }
1353
1354         if ( rc == SYNC_PAUSED ) {
1355                 rtask->interval.tv_sec = 0;
1356                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1357                 rtask->interval.tv_sec = si->si_interval;
1358                 rc = 0;
1359         } else if ( rc == LDAP_SUCCESS ) {
1360                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1361                         defer = 0;
1362                 }
1363                 rtask->interval.tv_sec = si->si_interval;
1364                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1365                 if ( si->si_retrynum ) {
1366                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1367                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1368                         }
1369                         si->si_retrynum[i] = RETRYNUM_TAIL;
1370                 }
1371         } else {
1372                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1373                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1374                                 break;
1375                 }
1376
1377                 if ( !si->si_ctype
1378                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1379                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1380                         fail = RETRYNUM_TAIL;
1381                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1382                         if ( si->si_retrynum[i] > 0 )
1383                                 si->si_retrynum[i]--;
1384                         fail = si->si_retrynum[i];
1385                         rtask->interval.tv_sec = si->si_retryinterval[i];
1386                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1387                         slap_wake_listener();
1388                 }
1389         }
1390
1391         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1392
1393         if ( do_setup )
1394                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1395
1396 success:
1397         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1398
1399         if ( rc ) {
1400                 if ( fail == RETRYNUM_TAIL ) {
1401                         Debug( LDAP_DEBUG_ANY,
1402                                 "do_syncrepl: %s quitting\n",
1403                                 si->si_ridtxt, 0, 0 );
1404                 } else if ( fail > 0 ) {
1405                         Debug( LDAP_DEBUG_ANY,
1406                                 "do_syncrepl: %s retrying (%d retries left)\n",
1407                                 si->si_ridtxt, fail, 0 );
1408                 } else {
1409                         Debug( LDAP_DEBUG_ANY,
1410                                 "do_syncrepl: %s retrying\n",
1411                                 si->si_ridtxt, 0, 0 );
1412                 }
1413         }
1414
1415         /* Do final delete cleanup */
1416         if ( !si->si_ctype ) {
1417                 cookie_state *cs = NULL;
1418                 syncinfo_t **sip;
1419
1420                 cs = be->be_syncinfo->si_cookieState;
1421                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1422                 *sip = si->si_next;
1423                 syncinfo_free( si, 0 );
1424                 if ( !be->be_syncinfo ) {
1425                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1426                         if ( cs ) {
1427                                 ch_free( cs->cs_sids );
1428                                 ber_bvarray_free( cs->cs_vals );
1429                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1430                                 ch_free( cs );
1431                         }
1432                 }
1433         }
1434         return NULL;
1435 }
1436
1437 static slap_verbmasks modops[] = {
1438         { BER_BVC("add"), LDAP_REQ_ADD },
1439         { BER_BVC("delete"), LDAP_REQ_DELETE },
1440         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1441         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1442         { BER_BVNULL, 0 }
1443 };
1444
1445 static Modifications *
1446 syncrepl_accesslog_mods(
1447         syncinfo_t *si,
1448         struct berval *vals
1449 )
1450 {
1451         char *colon;
1452         const char *text;
1453         AttributeDescription *ad;
1454         struct berval bv, bv2;
1455         short op;
1456         Modifications *mod = NULL, *modlist = NULL, **modtail;
1457         int i;
1458
1459         modtail = &modlist;
1460
1461         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1462                 ad = NULL;
1463                 bv = vals[i];
1464
1465                 colon = ber_bvchr( &bv, ':' );
1466                 if ( !colon ) {
1467                         /* Invalid */
1468                         continue;
1469                 }
1470
1471                 bv.bv_len = colon - bv.bv_val;
1472                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1473                         /* Invalid */
1474                         continue;
1475                 }
1476
1477                 /* Ignore dynamically generated attrs */
1478                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1479                         continue;
1480                 }
1481
1482                 /* Ignore excluded attrs */
1483                 if ( ldap_charray_inlist( si->si_exattrs,
1484                         ad->ad_type->sat_cname.bv_val ) )
1485                 {
1486                         continue;
1487                 }
1488
1489                 switch(colon[1]) {
1490                 case '+':       op = LDAP_MOD_ADD; break;
1491                 case '-':       op = LDAP_MOD_DELETE; break;
1492                 case '=':       op = LDAP_MOD_REPLACE; break;
1493                 case '#':       op = LDAP_MOD_INCREMENT; break;
1494                 default:        continue;
1495                 }
1496
1497                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1498                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1499                         mod->sml_flags = 0;
1500                         mod->sml_op = op;
1501                         mod->sml_next = NULL;
1502                         mod->sml_desc = ad;
1503                         mod->sml_type = ad->ad_cname;
1504                         mod->sml_values = NULL;
1505                         mod->sml_nvalues = NULL;
1506                         mod->sml_numvals = 0;
1507
1508                         *modtail = mod;
1509                         modtail = &mod->sml_next;
1510                 }
1511                 if ( colon[2] == ' ' ) {
1512                         bv.bv_val = colon + 3;
1513                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1514                         ber_dupbv( &bv2, &bv );
1515                         ber_bvarray_add( &mod->sml_values, &bv2 );
1516                         mod->sml_numvals++;
1517                 }
1518         }
1519         return modlist;
1520 }
1521
1522 static Modifications *
1523 syncrepl_changelog_mods(
1524         syncinfo_t *si,
1525         struct berval *vals
1526 )
1527 {
1528         return NULL;    /* FIXME */
1529 }
1530
1531 static int
1532 syncrepl_message_to_op(
1533         syncinfo_t      *si,
1534         Operation       *op,
1535         LDAPMessage     *msg
1536 )
1537 {
1538         BerElement      *ber = NULL;
1539         Modifications   *modlist = NULL;
1540         logschema *ls;
1541         SlapReply rs = { REP_RESULT };
1542         slap_callback cb = { NULL, null_callback, NULL, NULL };
1543
1544         const char      *text;
1545         char txtbuf[SLAP_TEXT_BUFLEN];
1546         size_t textlen = sizeof txtbuf;
1547
1548         struct berval   bdn, dn = BER_BVNULL, ndn;
1549         struct berval   bv, *bvals = NULL;
1550         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1551                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1552                 psup = BER_BVNULL, nsup = BER_BVNULL;
1553         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1554
1555         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1556                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1557                         "Message type should be entry (%d)",
1558                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1559                 return -1;
1560         }
1561
1562         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1563                 ls = &accesslog_sc;
1564         else
1565                 ls = &changelog_sc;
1566
1567         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1568
1569         if ( rc != LDAP_SUCCESS ) {
1570                 Debug( LDAP_DEBUG_ANY,
1571                         "syncrepl_message_to_op: %s dn get failed (%d)",
1572                         si->si_ridtxt, rc, 0 );
1573                 return rc;
1574         }
1575
1576         op->o_tag = LBER_DEFAULT;
1577         op->o_bd = si->si_wbe;
1578
1579         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1580                 == LDAP_SUCCESS ) {
1581                 if ( bv.bv_val == NULL )
1582                         break;
1583
1584                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1585                         bdn = bvals[0];
1586                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1587                         ber_dupbv( &op->o_req_dn, &dn );
1588                         ber_dupbv( &op->o_req_ndn, &ndn );
1589                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1590                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1591                         freeReqDn = 1;
1592                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1593                         int i = verb_to_mask( bvals[0].bv_val, modops );
1594                         if ( i < 0 ) {
1595                                 Debug( LDAP_DEBUG_ANY,
1596                                         "syncrepl_message_to_op: %s unknown op %s",
1597                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1598                                 ch_free( bvals );
1599                                 rc = -1;
1600                                 goto done;
1601                         }
1602                         op->o_tag = modops[i].mask;
1603                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1604                         /* Parse attribute into modlist */
1605                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1606                                 modlist = syncrepl_accesslog_mods( si, bvals );
1607                         } else {
1608                                 modlist = syncrepl_changelog_mods( si, bvals );
1609                         }
1610                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1611                         rdn = bvals[0];
1612                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1613                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1614                                 deleteOldRdn = 1;
1615                         }
1616                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1617                         sup = bvals[0];
1618                 } else if ( !ber_bvstrcasecmp( &bv,
1619                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1620                 {
1621                         slap_queue_csn( op, bvals );
1622                 }
1623                 ch_free( bvals );
1624         }
1625
1626         /* If we didn't get a mod type or a target DN, bail out */
1627         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1628                 rc = -1;
1629                 goto done;
1630         }
1631
1632         op->o_callback = &cb;
1633         slap_op_time( &op->o_time, &op->o_tincr );
1634
1635         switch( op->o_tag ) {
1636         case LDAP_REQ_ADD:
1637         case LDAP_REQ_MODIFY:
1638                 /* If we didn't get required data, bail */
1639                 if ( !modlist ) goto done;
1640
1641                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1642
1643                 if ( rc != LDAP_SUCCESS ) {
1644                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1645                                 "mods check (%s)\n",
1646                                 si->si_ridtxt, text, 0 );
1647                         goto done;
1648                 }
1649
1650                 if ( op->o_tag == LDAP_REQ_ADD ) {
1651                         Entry *e = entry_alloc();
1652                         op->ora_e = e;
1653                         op->ora_e->e_name = op->o_req_dn;
1654                         op->ora_e->e_nname = op->o_req_ndn;
1655                         freeReqDn = 0;
1656                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1657                         if( rc != LDAP_SUCCESS ) {
1658                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1659                                 "mods2entry (%s)\n",
1660                                         si->si_ridtxt, text, 0 );
1661                         } else {
1662                                 rc = op->o_bd->be_add( op, &rs );
1663                                 Debug( LDAP_DEBUG_SYNC,
1664                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1665                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1666                         }
1667                         if ( e == op->ora_e )
1668                                 be_entry_release_w( op, op->ora_e );
1669                 } else {
1670                         op->orm_modlist = modlist;
1671                         op->o_bd = si->si_wbe;
1672                         rc = op->o_bd->be_modify( op, &rs );
1673                         modlist = op->orm_modlist;
1674                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1675                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1676                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1677                         op->o_bd = si->si_be;
1678                 }
1679                 break;
1680         case LDAP_REQ_MODRDN:
1681                 if ( BER_BVISNULL( &rdn ) ) goto done;
1682
1683                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1684                         goto done;
1685                 }
1686                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1687                         goto done;
1688                 }
1689                 if ( !BER_BVISNULL( &sup ) ) {
1690                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1691                                 goto done;
1692                         }
1693                         op->orr_newSup = &psup;
1694                         op->orr_nnewSup = &nsup;
1695                 } else {
1696                         op->orr_newSup = NULL;
1697                         op->orr_nnewSup = NULL;
1698                 }
1699                 op->orr_newrdn = prdn;
1700                 op->orr_nnewrdn = nrdn;
1701                 op->orr_deleteoldrdn = deleteOldRdn;
1702                 op->orr_modlist = NULL;
1703                 if ( slap_modrdn2mods( op, &rs ) ) {
1704                         goto done;
1705                 }
1706
1707                 /* Append modlist for operational attrs */
1708                 {
1709                         Modifications *m;
1710
1711                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1712                                 ;
1713                         m->sml_next = modlist;
1714                         modlist = NULL;
1715                 }
1716                 rc = op->o_bd->be_modrdn( op, &rs );
1717                 slap_mods_free( op->orr_modlist, 1 );
1718                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1719                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1720                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1721                 break;
1722         case LDAP_REQ_DELETE:
1723                 rc = op->o_bd->be_delete( op, &rs );
1724                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1725                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1726                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1727                 break;
1728         }
1729 done:
1730         slap_graduate_commit_csn( op );
1731         op->o_bd = si->si_be;
1732         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1733         BER_BVZERO( &op->o_csn );
1734         if ( modlist ) {
1735                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1736         }
1737         if ( !BER_BVISNULL( &rdn ) ) {
1738                 if ( !BER_BVISNULL( &nsup ) ) {
1739                         ch_free( nsup.bv_val );
1740                 }
1741                 if ( !BER_BVISNULL( &psup ) ) {
1742                         ch_free( psup.bv_val );
1743                 }
1744                 if ( !BER_BVISNULL( &nrdn ) ) {
1745                         ch_free( nrdn.bv_val );
1746                 }
1747                 if ( !BER_BVISNULL( &prdn ) ) {
1748                         ch_free( prdn.bv_val );
1749                 }
1750         }
1751         if ( freeReqDn ) {
1752                 ch_free( op->o_req_ndn.bv_val );
1753                 ch_free( op->o_req_dn.bv_val );
1754         }
1755         ber_free( ber, 0 );
1756         return rc;
1757 }
1758
1759 static int
1760 syncrepl_message_to_entry(
1761         syncinfo_t      *si,
1762         Operation       *op,
1763         LDAPMessage     *msg,
1764         Modifications   **modlist,
1765         Entry                   **entry,
1766         int             syncstate
1767 )
1768 {
1769         Entry           *e = NULL;
1770         BerElement      *ber = NULL;
1771         Modifications   tmp;
1772         Modifications   *mod;
1773         Modifications   **modtail = modlist;
1774
1775         const char      *text;
1776         char txtbuf[SLAP_TEXT_BUFLEN];
1777         size_t textlen = sizeof txtbuf;
1778
1779         struct berval   bdn = BER_BVNULL, dn, ndn;
1780         int             rc, is_ctx;
1781
1782         *modlist = NULL;
1783
1784         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1785                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1786                         "Message type should be entry (%d)",
1787                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1788                 return -1;
1789         }
1790
1791         op->o_tag = LDAP_REQ_ADD;
1792
1793         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1794         if ( rc != LDAP_SUCCESS ) {
1795                 Debug( LDAP_DEBUG_ANY,
1796                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1797                         si->si_ridtxt, rc, 0 );
1798                 return rc;
1799         }
1800
1801         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1802                 /* NOTE: this could be done even before decoding the DN,
1803                  * although encoding errors wouldn't be detected */
1804                 rc = LDAP_SUCCESS;
1805                 goto done;
1806         }
1807
1808         if ( entry == NULL ) {
1809                 return -1;
1810         }
1811
1812         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1813         ber_dupbv( &op->o_req_dn, &dn );
1814         ber_dupbv( &op->o_req_ndn, &ndn );
1815         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1816         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1817
1818         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1819
1820         e = entry_alloc();
1821         e->e_name = op->o_req_dn;
1822         e->e_nname = op->o_req_ndn;
1823
1824         while ( ber_remaining( ber ) ) {
1825                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1826                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1827                 {
1828                         break;
1829                 }
1830
1831                 /* Drop all updates to the contextCSN of the context entry
1832                  * (ITS#4622, etc.)
1833                  */
1834                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1835                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1836                         ber_bvarray_free( tmp.sml_values );
1837                         continue;
1838                 }
1839
1840                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1841
1842                 mod->sml_op = LDAP_MOD_REPLACE;
1843                 mod->sml_flags = 0;
1844                 mod->sml_next = NULL;
1845                 mod->sml_desc = NULL;
1846                 mod->sml_type = tmp.sml_type;
1847                 mod->sml_values = tmp.sml_values;
1848                 mod->sml_nvalues = NULL;
1849                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1850
1851                 *modtail = mod;
1852                 modtail = &mod->sml_next;
1853         }
1854
1855         if ( *modlist == NULL ) {
1856                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1857                         si->si_ridtxt, 0, 0 );
1858                 rc = -1;
1859                 goto done;
1860         }
1861
1862         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1863
1864         if ( rc != LDAP_SUCCESS ) {
1865                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1866                         si->si_ridtxt, text, 0 );
1867                 goto done;
1868         }
1869
1870         /* Strip out dynamically generated attrs */
1871         for ( modtail = modlist; *modtail ; ) {
1872                 mod = *modtail;
1873                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1874                         *modtail = mod->sml_next;
1875                         slap_mod_free( &mod->sml_mod, 0 );
1876                         ch_free( mod );
1877                 } else {
1878                         modtail = &mod->sml_next;
1879                 }
1880         }
1881
1882         /* Strip out attrs in exattrs list */
1883         for ( modtail = modlist; *modtail ; ) {
1884                 mod = *modtail;
1885                 if ( ldap_charray_inlist( si->si_exattrs,
1886                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1887                 {
1888                         *modtail = mod->sml_next;
1889                         slap_mod_free( &mod->sml_mod, 0 );
1890                         ch_free( mod );
1891                 } else {
1892                         modtail = &mod->sml_next;
1893                 }
1894         }
1895
1896         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1897         if( rc != LDAP_SUCCESS ) {
1898                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1899                         si->si_ridtxt, text, 0 );
1900         }
1901
1902 done:
1903         ber_free( ber, 0 );
1904         if ( rc != LDAP_SUCCESS ) {
1905                 if ( e ) {
1906                         entry_free( e );
1907                         e = NULL;
1908                 }
1909         }
1910         if ( entry )
1911                 *entry = e;
1912
1913         return rc;
1914 }
1915
1916 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1917
1918 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1919  * entry if a previous refresh was interrupted before sending us a new
1920  * context state. We try to compare the new entry to the existing entry
1921  * and ignore the new entry if they are the same.
1922  *
1923  * Also, we may get an update where the entryDN has changed, due to
1924  * a ModDn on the provider. We detect this as well, so we can issue
1925  * the corresponding operation locally.
1926  *
1927  * In the case of a modify, we get a list of all the attributes
1928  * in the original entry. Rather than deleting the entry and re-adding it,
1929  * we issue a Modify request that deletes all the attributes and adds all
1930  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1931  * entry.
1932  *
1933  * We otherwise distinguish ModDN from Modify; in the case of
1934  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1935  * operational attributes from the entry, and do a regular ModDN.
1936  */
1937 typedef struct dninfo {
1938         Entry *new_entry;
1939         struct berval dn;
1940         struct berval ndn;
1941         int renamed;    /* Was an existing entry renamed? */
1942         int delOldRDN;  /* Was old RDN deleted? */
1943         Modifications **modlist;        /* the modlist we received */
1944         Modifications *mods;    /* the modlist we compared */
1945 } dninfo;
1946
1947 /* return 1 if inserted, 0 otherwise */
1948 static int
1949 avl_presentlist_insert(
1950         syncinfo_t* si,
1951         struct berval *syncUUID )
1952 {
1953         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1954
1955         syncuuid_bv->bv_len = syncUUID->bv_len;
1956         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1957         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1958         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1959
1960         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1961                 syncuuid_cmp, avl_dup_error ) )
1962         {
1963                 ch_free( syncuuid_bv );
1964                 return 0;
1965         }
1966
1967         return 1;
1968 }
1969
1970 static int
1971 syncrepl_entry(
1972         syncinfo_t* si,
1973         Operation *op,
1974         Entry* entry,
1975         Modifications** modlist,
1976         int syncstate,
1977         struct berval* syncUUID,
1978         struct berval* syncCSN )
1979 {
1980         Backend *be = op->o_bd;
1981         slap_callback   cb = { NULL, NULL, NULL, NULL };
1982         int syncuuid_inserted = 0;
1983         struct berval   syncUUID_strrep = BER_BVNULL;
1984
1985         SlapReply       rs_search = {REP_RESULT};
1986         SlapReply       rs_delete = {REP_RESULT};
1987         SlapReply       rs_add = {REP_RESULT};
1988         SlapReply       rs_modify = {REP_RESULT};
1989         Filter f = {0};
1990         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1991         int rc = LDAP_SUCCESS;
1992
1993         struct berval pdn = BER_BVNULL;
1994         dninfo dni = {0};
1995         int     retry = 1;
1996         int     freecsn = 1;
1997
1998         Debug( LDAP_DEBUG_SYNC,
1999                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2000                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2001
2002         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2003                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2004                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2005                 }
2006         }
2007
2008         if ( syncstate == LDAP_SYNC_PRESENT ) {
2009                 return 0;
2010         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2011                 if ( entry == NULL ) {
2012                         return 0;
2013                 }
2014         }
2015
2016         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2017         if ( syncstate != LDAP_SYNC_DELETE ) {
2018                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2019
2020                 if ( a == NULL ) {
2021                         /* add if missing */
2022                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2023                                 &syncUUID_strrep, syncUUID );
2024
2025                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2026                         /* replace only if necessary */
2027                         if ( a->a_nvals != a->a_vals ) {
2028                                 ber_memfree( a->a_nvals[0].bv_val );
2029                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2030                         }
2031                         ber_memfree( a->a_vals[0].bv_val );
2032                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2033                 }
2034         }
2035
2036         f.f_choice = LDAP_FILTER_EQUALITY;
2037         f.f_ava = &ava;
2038         ava.aa_desc = slap_schema.si_ad_entryUUID;
2039         ava.aa_value = *syncUUID;
2040
2041         if ( syncuuid_inserted ) {
2042                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2043                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2044         }
2045         op->ors_filter = &f;
2046
2047         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2048         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2049                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2050         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2051         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2052                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2053         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2054         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2055
2056         op->o_tag = LDAP_REQ_SEARCH;
2057         op->ors_scope = LDAP_SCOPE_SUBTREE;
2058         op->ors_deref = LDAP_DEREF_NEVER;
2059
2060         /* get the entry for this UUID */
2061         op->o_req_dn = si->si_base;
2062         op->o_req_ndn = si->si_base;
2063
2064         op->o_time = slap_get_time();
2065         op->ors_tlimit = SLAP_NO_LIMIT;
2066         op->ors_slimit = 1;
2067
2068         op->ors_attrs = slap_anlist_all_attributes;
2069         op->ors_attrsonly = 0;
2070
2071         /* set callback function */
2072         op->o_callback = &cb;
2073         cb.sc_response = dn_callback;
2074         cb.sc_private = &dni;
2075         dni.new_entry = entry;
2076         dni.modlist = modlist;
2077
2078         if ( limits_check( op, &rs_search ) == 0 ) {
2079                 rc = be->be_search( op, &rs_search );
2080                 Debug( LDAP_DEBUG_SYNC,
2081                                 "syncrepl_entry: %s be_search (%d)\n",
2082                                 si->si_ridtxt, rc, 0 );
2083         }
2084
2085         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2086                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2087         }
2088
2089         cb.sc_response = null_callback;
2090         cb.sc_private = si;
2091
2092         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2093                 Debug( LDAP_DEBUG_SYNC,
2094                                 "syncrepl_entry: %s %s\n",
2095                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2096         } else {
2097                 Debug( LDAP_DEBUG_SYNC,
2098                                 "syncrepl_entry: %s %s\n",
2099                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2100         }
2101
2102         assert( BER_BVISNULL( &op->o_csn ) );
2103         if ( syncCSN ) {
2104                 slap_queue_csn( op, syncCSN );
2105         }
2106
2107         slap_op_time( &op->o_time, &op->o_tincr );
2108         switch ( syncstate ) {
2109         case LDAP_SYNC_ADD:
2110         case LDAP_SYNC_MODIFY:
2111                 if ( BER_BVISNULL( &op->o_csn ))
2112                 {
2113
2114                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2115                         if ( a ) {
2116                                 /* FIXME: op->o_csn is assumed to be
2117                                  * on the thread's slab; this needs
2118                                  * to be cleared ASAP.
2119                                  * What happens if already present?
2120                                  */
2121                                 assert( BER_BVISNULL( &op->o_csn ) );
2122                                 op->o_csn = a->a_vals[0];
2123                                 freecsn = 0;
2124                         }
2125                 }
2126 retry_add:;
2127                 if ( BER_BVISNULL( &dni.dn ) ) {
2128
2129                         op->o_req_dn = entry->e_name;
2130                         op->o_req_ndn = entry->e_nname;
2131                         op->o_tag = LDAP_REQ_ADD;
2132                         op->ora_e = entry;
2133                         op->o_bd = si->si_wbe;
2134
2135                         rc = op->o_bd->be_add( op, &rs_add );
2136                         Debug( LDAP_DEBUG_SYNC,
2137                                         "syncrepl_entry: %s be_add (%d)\n",
2138                                         si->si_ridtxt, rc, 0 );
2139                         switch ( rs_add.sr_err ) {
2140                         case LDAP_SUCCESS:
2141                                 if ( op->ora_e == entry ) {
2142                                         be_entry_release_w( op, entry );
2143                                 }
2144                                 entry = NULL;
2145                                 break;
2146
2147                         case LDAP_REFERRAL:
2148                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2149                          * only if the suffix entry is not present */
2150                         case LDAP_NO_SUCH_OBJECT:
2151                                 rc = syncrepl_add_glue( op, entry );
2152                                 entry = NULL;
2153                                 break;
2154
2155                         /* if an entry was added via syncrepl_add_glue(),
2156                          * it likely has no entryUUID, so the previous
2157                          * be_search() doesn't find it.  In this case,
2158                          * give syncrepl a chance to modify it. Also
2159                          * allow for entries that were recreated with the
2160                          * same DN but a different entryUUID.
2161                          */
2162                         case LDAP_ALREADY_EXISTS:
2163                                 if ( retry ) {
2164                                         Operation       op2 = *op;
2165                                         SlapReply       rs2 = { 0 };
2166                                         slap_callback   cb2 = { 0 };
2167
2168                                         op2.o_bd = be;
2169                                         op2.o_tag = LDAP_REQ_SEARCH;
2170                                         op2.o_req_dn = entry->e_name;
2171                                         op2.o_req_ndn = entry->e_nname;
2172                                         op2.ors_scope = LDAP_SCOPE_BASE;
2173                                         op2.ors_deref = LDAP_DEREF_NEVER;
2174                                         op2.ors_attrs = slap_anlist_all_attributes;
2175                                         op2.ors_attrsonly = 0;
2176                                         op2.ors_limit = NULL;
2177                                         op2.ors_slimit = 1;
2178                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2179
2180                                         f.f_choice = LDAP_FILTER_PRESENT;
2181                                         f.f_desc = slap_schema.si_ad_objectClass;
2182                                         op2.ors_filter = &f;
2183                                         op2.ors_filterstr = generic_filterstr;
2184
2185                                         op2.o_callback = &cb2;
2186                                         cb2.sc_response = dn_callback;
2187                                         cb2.sc_private = &dni;
2188
2189                                         rc = be->be_search( &op2, &rs2 );
2190                                         if ( rc ) goto done;
2191
2192                                         retry = 0;
2193                                         slap_op_time( &op->o_time, &op->o_tincr );
2194                                         goto retry_add;
2195                                 }
2196                                 /* FALLTHRU */
2197
2198                         default:
2199                                 Debug( LDAP_DEBUG_ANY,
2200                                         "syncrepl_entry: %s be_add failed (%d)\n",
2201                                         si->si_ridtxt, rs_add.sr_err, 0 );
2202                                 break;
2203                         }
2204                         op->o_bd = be;
2205                         goto done;
2206                 }
2207                 /* FALLTHRU */
2208                 op->o_req_dn = dni.dn;
2209                 op->o_req_ndn = dni.ndn;
2210                 if ( dni.renamed ) {
2211                         struct berval noldp, newp, nnewp;
2212
2213                         op->o_tag = LDAP_REQ_MODRDN;
2214                         dnRdn( &entry->e_name, &op->orr_newrdn );
2215                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2216
2217                         dnParent( &dni.ndn, &noldp );
2218                         dnParent( &entry->e_nname, &nnewp );
2219                         if ( !dn_match( &noldp, &nnewp ) ) {
2220                                 dnParent( &entry->e_name, &newp );
2221                                 op->orr_newSup = &newp;
2222                                 op->orr_nnewSup = &nnewp;
2223                         } else {
2224                                 op->orr_newSup = NULL;
2225                                 op->orr_nnewSup = NULL;
2226                         }
2227                         op->orr_deleteoldrdn = dni.delOldRDN;
2228                         op->orr_modlist = NULL;
2229                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2230                                 goto done;
2231                         }
2232
2233                         /* RDNs must be NUL-terminated for back-ldap */
2234                         noldp = op->orr_newrdn;
2235                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2236                         noldp = op->orr_nnewrdn;
2237                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2238
2239                         /* Setup opattrs too */
2240                         {
2241                                 static AttributeDescription *nullattr = NULL;
2242                                 static AttributeDescription **const opattrs[] = {
2243                                         &slap_schema.si_ad_entryCSN,
2244                                         &slap_schema.si_ad_modifiersName,
2245                                         &slap_schema.si_ad_modifyTimestamp,
2246                                         &nullattr
2247                                 };
2248                                 AttributeDescription *opattr;
2249                                 Modifications *mod, **modtail, **ml;
2250                                 int i;
2251
2252                                 for ( mod = op->orr_modlist;
2253                                         mod->sml_next;
2254                                         mod = mod->sml_next )
2255                                         ;
2256                                 modtail = &mod->sml_next;
2257
2258                                 /* pull mod off incoming modlist, append to orr_modlist */
2259                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2260                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2261                                         {
2262                                                 if ( (*ml)->sml_desc == opattr ) {
2263                                                         mod = *ml;
2264                                                         *ml = mod->sml_next;
2265                                                         mod->sml_next = NULL;
2266                                                         *modtail = mod;
2267                                                         modtail = &mod->sml_next;
2268                                                         break;
2269                                                 }
2270                                         }
2271                                 }
2272                         }
2273                         op->o_bd = si->si_wbe;
2274                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2275                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2276                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2277
2278                         slap_mods_free( op->orr_modlist, 1 );
2279                         Debug( LDAP_DEBUG_SYNC,
2280                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2281                                         si->si_ridtxt, rc, 0 );
2282                         op->o_bd = be;
2283                         goto done;
2284                 }
2285                 if ( dni.mods ) {
2286                         op->o_tag = LDAP_REQ_MODIFY;
2287                         op->orm_modlist = dni.mods;
2288                         op->orm_no_opattrs = 1;
2289                         op->o_bd = si->si_wbe;
2290
2291                         rc = op->o_bd->be_modify( op, &rs_modify );
2292                         slap_mods_free( op->orm_modlist, 1 );
2293                         op->orm_no_opattrs = 0;
2294                         Debug( LDAP_DEBUG_SYNC,
2295                                         "syncrepl_entry: %s be_modify (%d)\n",
2296                                         si->si_ridtxt, rc, 0 );
2297                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2298                                 Debug( LDAP_DEBUG_ANY,
2299                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2300                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2301                         }
2302                         op->o_bd = be;
2303                 } else {
2304                         Debug( LDAP_DEBUG_SYNC,
2305                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2306                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2307                 }
2308                 goto done;
2309         case LDAP_SYNC_DELETE :
2310                 if ( !BER_BVISNULL( &dni.dn ) ) {
2311                         op->o_req_dn = dni.dn;
2312                         op->o_req_ndn = dni.ndn;
2313                         op->o_tag = LDAP_REQ_DELETE;
2314                         op->o_bd = si->si_wbe;
2315                         rc = op->o_bd->be_delete( op, &rs_delete );
2316                         Debug( LDAP_DEBUG_SYNC,
2317                                         "syncrepl_entry: %s be_delete (%d)\n",
2318                                         si->si_ridtxt, rc, 0 );
2319
2320                         while ( rs_delete.sr_err == LDAP_SUCCESS
2321                                 && op->o_delete_glue_parent ) {
2322                                 op->o_delete_glue_parent = 0;
2323                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2324                                         slap_callback cb = { NULL };
2325                                         cb.sc_response = slap_null_cb;
2326                                         dnParent( &op->o_req_ndn, &pdn );
2327                                         op->o_req_dn = pdn;
2328                                         op->o_req_ndn = pdn;
2329                                         op->o_callback = &cb;
2330                                         op->o_bd->be_delete( op, &rs_delete );
2331                                 } else {
2332                                         break;
2333                                 }
2334                         }
2335                         op->o_bd = be;
2336                 }
2337                 goto done;
2338
2339         default :
2340                 Debug( LDAP_DEBUG_ANY,
2341                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2342                 goto done;
2343         }
2344
2345 done:
2346         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2347                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2348                 BER_BVZERO( &syncUUID_strrep );
2349         }
2350         if ( !BER_BVISNULL( &dni.ndn ) ) {
2351                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2352         }
2353         if ( !BER_BVISNULL( &dni.dn ) ) {
2354                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2355         }
2356         if ( entry ) {
2357                 entry_free( entry );
2358         }
2359         if ( syncCSN ) {
2360                 slap_graduate_commit_csn( op );
2361         }
2362         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2363                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2364         }
2365         BER_BVZERO( &op->o_csn );
2366         return rc;
2367 }
2368
2369 static struct berval gcbva[] = {
2370         BER_BVC("top"),
2371         BER_BVC("glue"),
2372         BER_BVNULL
2373 };
2374
2375 #define NP_DELETE_ONE   2
2376
2377 static void
2378 syncrepl_del_nonpresent(
2379         Operation *op,
2380         syncinfo_t *si,
2381         BerVarray uuids,
2382         struct sync_cookie *sc,
2383         int m )
2384 {
2385         Backend* be = op->o_bd;
2386         slap_callback   cb = { NULL };
2387         SlapReply       rs_search = {REP_RESULT};
2388         SlapReply       rs_delete = {REP_RESULT};
2389         SlapReply       rs_modify = {REP_RESULT};
2390         struct nonpresent_entry *np_list, *np_prev;
2391         int rc;
2392         AttributeName   an[2];
2393
2394         struct berval pdn = BER_BVNULL;
2395         struct berval csn;
2396
2397         op->o_req_dn = si->si_base;
2398         op->o_req_ndn = si->si_base;
2399
2400         cb.sc_response = nonpresent_callback;
2401         cb.sc_private = si;
2402
2403         op->o_callback = &cb;
2404         op->o_tag = LDAP_REQ_SEARCH;
2405         op->ors_scope = si->si_scope;
2406         op->ors_deref = LDAP_DEREF_NEVER;
2407         op->o_time = slap_get_time();
2408         op->ors_tlimit = SLAP_NO_LIMIT;
2409
2410
2411         if ( uuids ) {
2412                 Filter uf;
2413                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2414                 int i;
2415
2416                 op->ors_attrsonly = 1;
2417                 op->ors_attrs = slap_anlist_no_attrs;
2418                 op->ors_limit = NULL;
2419                 op->ors_filter = &uf;
2420
2421                 uf.f_ava = &eq;
2422                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2423                 uf.f_next = NULL;
2424                 uf.f_choice = LDAP_FILTER_EQUALITY;
2425                 si->si_refreshDelete |= NP_DELETE_ONE;
2426
2427                 for (i=0; uuids[i].bv_val; i++) {
2428                         op->ors_slimit = 1;
2429                         uf.f_av_value = uuids[i];
2430                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2431                         rc = be->be_search( op, &rs_search );
2432                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2433                 }
2434                 si->si_refreshDelete ^= NP_DELETE_ONE;
2435         } else {
2436                 Filter *cf, *of;
2437
2438                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2439                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2440                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2441                 op->ors_attrs = an;
2442                 op->ors_slimit = SLAP_NO_LIMIT;
2443                 op->ors_attrsonly = 0;
2444                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2445                 /* In multimaster, updates can continue to arrive while
2446                  * we're searching. Limit the search result to entries
2447                  * older than all of our cookie CSNs.
2448                  */
2449                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2450                         Filter *f;
2451                         int i;
2452                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2453                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2454                         f = cf;
2455                         f->f_choice = LDAP_FILTER_AND;
2456                         f->f_next = NULL;
2457                         f->f_and = f+1;
2458                         of = f->f_and;
2459                         for ( i=0; i<sc->numcsns; i++ ) {
2460                                 f = of;
2461                                 f->f_choice = LDAP_FILTER_LE;
2462                                 f->f_ava = (AttributeAssertion *)(f+1);
2463                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2464                                 f->f_av_value = sc->ctxcsn[i];
2465                                 f->f_next = (Filter *)(f->f_ava+1);
2466                                 of = f->f_next;
2467                         }
2468                         f->f_next = op->ors_filter;
2469                         of = op->ors_filter;
2470                         op->ors_filter = cf;
2471                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2472                 } else {
2473                         cf = NULL;
2474                         op->ors_filterstr = si->si_filterstr;
2475                 }
2476                 op->o_nocaching = 1;
2477
2478                 if ( limits_check( op, &rs_search ) == 0 ) {
2479                         rc = be->be_search( op, &rs_search );
2480                 }
2481                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2482                         op->o_tmpfree( cf, op->o_tmpmemctx );
2483                         op->ors_filter = of;
2484                 }
2485                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2486
2487         }
2488
2489         op->o_nocaching = 0;
2490
2491         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2492
2493                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2494                         csn = sc->ctxcsn[m];
2495                 } else {
2496                         csn = si->si_syncCookie.ctxcsn[0];
2497                 }
2498
2499                 op->o_bd = si->si_wbe;
2500                 slap_queue_csn( op, &csn );
2501
2502                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2503                 while ( np_list != NULL ) {
2504                         LDAP_LIST_REMOVE( np_list, npe_link );
2505                         np_prev = np_list;
2506                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2507                         op->o_tag = LDAP_REQ_DELETE;
2508                         op->o_callback = &cb;
2509                         cb.sc_response = null_callback;
2510                         cb.sc_private = si;
2511                         op->o_req_dn = *np_prev->npe_name;
2512                         op->o_req_ndn = *np_prev->npe_nname;
2513                         rc = op->o_bd->be_delete( op, &rs_delete );
2514                         Debug( LDAP_DEBUG_SYNC,
2515                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2516                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2517
2518                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2519                                 Modifications mod1, mod2;
2520                                 mod1.sml_op = LDAP_MOD_REPLACE;
2521                                 mod1.sml_flags = 0;
2522                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2523                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2524                                 mod1.sml_numvals = 2;
2525                                 mod1.sml_values = &gcbva[0];
2526                                 mod1.sml_nvalues = NULL;
2527                                 mod1.sml_next = &mod2;
2528
2529                                 mod2.sml_op = LDAP_MOD_REPLACE;
2530                                 mod2.sml_flags = 0;
2531                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2532                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2533                                 mod2.sml_numvals = 1;
2534                                 mod2.sml_values = &gcbva[1];
2535                                 mod2.sml_nvalues = NULL;
2536                                 mod2.sml_next = NULL;
2537
2538                                 op->o_tag = LDAP_REQ_MODIFY;
2539                                 op->orm_modlist = &mod1;
2540
2541                                 rc = op->o_bd->be_modify( op, &rs_modify );
2542                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2543                         }
2544
2545                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2546                                         op->o_delete_glue_parent ) {
2547                                 op->o_delete_glue_parent = 0;
2548                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2549                                         slap_callback cb = { NULL };
2550                                         cb.sc_response = slap_null_cb;
2551                                         dnParent( &op->o_req_ndn, &pdn );
2552                                         op->o_req_dn = pdn;
2553                                         op->o_req_ndn = pdn;
2554                                         op->o_callback = &cb;
2555                                         /* give it a root privil ? */
2556                                         op->o_bd->be_delete( op, &rs_delete );
2557                                 } else {
2558                                         break;
2559                                 }
2560                         }
2561
2562                         op->o_delete_glue_parent = 0;
2563
2564                         ber_bvfree( np_prev->npe_name );
2565                         ber_bvfree( np_prev->npe_nname );
2566                         ch_free( np_prev );
2567
2568                         if ( slapd_shutdown ) {
2569                                 break;
2570                         }
2571                 }
2572
2573                 slap_graduate_commit_csn( op );
2574                 op->o_bd = be;
2575
2576                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2577                 BER_BVZERO( &op->o_csn );
2578         }
2579
2580         return;
2581 }
2582
2583 int
2584 syncrepl_add_glue(
2585         Operation* op,
2586         Entry *e )
2587 {
2588         Backend *be = op->o_bd;
2589         slap_callback cb = { NULL };
2590         Attribute       *a;
2591         int     rc;
2592         int suffrdns;
2593         int i;
2594         struct berval dn = BER_BVNULL;
2595         struct berval ndn = BER_BVNULL;
2596         Entry   *glue;
2597         SlapReply       rs_add = {REP_RESULT};
2598         struct berval   ptr, nptr;
2599         char            *comma;
2600
2601         op->o_tag = LDAP_REQ_ADD;
2602         op->o_callback = &cb;
2603         cb.sc_response = null_callback;
2604         cb.sc_private = NULL;
2605
2606         dn = e->e_name;
2607         ndn = e->e_nname;
2608
2609         /* count RDNs in suffix */
2610         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2611                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2612                         comma++;
2613                         ptr.bv_len -= comma - ptr.bv_val;
2614                         ptr.bv_val = comma;
2615                         i++;
2616                 }
2617                 suffrdns = i;
2618         } else {
2619                 /* suffix is "" */
2620                 suffrdns = 0;
2621         }
2622
2623         /* Start with BE suffix */
2624         ptr = dn;
2625         for ( i = 0; i < suffrdns; i++ ) {
2626                 comma = ber_bvrchr( &ptr, ',' );
2627                 if ( comma != NULL ) {
2628                         ptr.bv_len = comma - ptr.bv_val;
2629                 } else {
2630                         ptr.bv_len = 0;
2631                         break;
2632                 }
2633         }
2634
2635         if ( !BER_BVISEMPTY( &ptr ) ) {
2636                 dn.bv_len -= ptr.bv_len + 1;
2637                 dn.bv_val += ptr.bv_len + 1;
2638         }
2639
2640         /* the normalizedDNs are always the same length, no counting
2641          * required.
2642          */
2643         nptr = ndn;
2644         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2645                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2646                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2647
2648                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2649
2650         } else {
2651                 nptr.bv_len = 0;
2652         }
2653
2654         while ( ndn.bv_val > e->e_nname.bv_val ) {
2655                 glue = entry_alloc();
2656                 ber_dupbv( &glue->e_name, &dn );
2657                 ber_dupbv( &glue->e_nname, &ndn );
2658
2659                 a = attr_alloc( slap_schema.si_ad_objectClass );
2660
2661                 a->a_numvals = 2;
2662                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2663                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2664                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2665                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2666
2667                 a->a_nvals = a->a_vals;
2668
2669                 a->a_next = glue->e_attrs;
2670                 glue->e_attrs = a;
2671
2672                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2673
2674                 a->a_numvals = 1;
2675                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2676                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2677                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2678
2679                 a->a_nvals = a->a_vals;
2680
2681                 a->a_next = glue->e_attrs;
2682                 glue->e_attrs = a;
2683
2684                 op->o_req_dn = glue->e_name;
2685                 op->o_req_ndn = glue->e_nname;
2686                 op->ora_e = glue;
2687                 rc = be->be_add ( op, &rs_add );
2688                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2689                         if ( op->ora_e == glue )
2690                                 be_entry_release_w( op, glue );
2691                 } else {
2692                 /* incl. ALREADY EXIST */
2693                         entry_free( glue );
2694                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2695                                 entry_free( e );
2696                                 return rc;
2697                         }
2698                 }
2699
2700                 /* Move to next child */
2701                 comma = ber_bvrchr( &ptr, ',' );
2702                 if ( comma == NULL ) {
2703                         break;
2704                 }
2705                 ptr.bv_len = comma - ptr.bv_val;
2706
2707                 dn.bv_val = ++comma;
2708                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2709
2710                 comma = ber_bvrchr( &nptr, ',' );
2711                 assert( comma != NULL );
2712                 nptr.bv_len = comma - nptr.bv_val;
2713
2714                 ndn.bv_val = ++comma;
2715                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2716         }
2717
2718         op->o_req_dn = e->e_name;
2719         op->o_req_ndn = e->e_nname;
2720         op->ora_e = e;
2721         rc = be->be_add ( op, &rs_add );
2722         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2723                 if ( op->ora_e == e )
2724                         be_entry_release_w( op, e );
2725         } else {
2726                 entry_free( e );
2727         }
2728
2729         return rc;
2730 }
2731
2732 static int
2733 syncrepl_updateCookie(
2734         syncinfo_t *si,
2735         Operation *op,
2736         struct berval *pdn,
2737         struct sync_cookie *syncCookie )
2738 {
2739         Backend *be = op->o_bd;
2740         Modifications mod;
2741         struct berval first = BER_BVNULL;
2742
2743         int rc, i, j, len;
2744
2745         slap_callback cb = { NULL };
2746         SlapReply       rs_modify = {REP_RESULT};
2747
2748         mod.sml_op = LDAP_MOD_REPLACE;
2749         mod.sml_desc = slap_schema.si_ad_contextCSN;
2750         mod.sml_type = mod.sml_desc->ad_cname;
2751         mod.sml_flags = SLAP_MOD_INTERNAL;
2752         mod.sml_nvalues = NULL;
2753         mod.sml_next = NULL;
2754
2755         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2756
2757         /* clone the cookieState CSNs so we can Replace the whole thing */
2758         mod.sml_numvals = si->si_cookieState->cs_num;
2759         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2760         for ( i=0; i<mod.sml_numvals; i++ )
2761                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2762         BER_BVZERO( &mod.sml_values[i] );
2763
2764         /* find any CSNs in the syncCookie that are newer than the cookieState */
2765         for ( i=0; i<syncCookie->numcsns; i++ ) {
2766                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2767                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2768                                 continue;
2769                         len = syncCookie->ctxcsn[i].bv_len;
2770                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2771                                 len = si->si_cookieState->cs_vals[j].bv_len;
2772                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2773                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2774                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2775                                 if ( BER_BVISNULL( &first ) ) {
2776                                         first = syncCookie->ctxcsn[i];
2777
2778                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2779                                 {
2780                                         first = syncCookie->ctxcsn[i];
2781                                 }
2782                         }
2783                         break;
2784                 }
2785                 /* there was no match for this SID, it's a new CSN */
2786                 if ( j == si->si_cookieState->cs_num ) {
2787                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2788                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2789                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2790                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2791                         if ( BER_BVISNULL( &first ) ) {
2792                                 first = syncCookie->ctxcsn[i];
2793                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2794                         {
2795                                 first = syncCookie->ctxcsn[i];
2796                         }
2797                 }
2798         }
2799         /* Should never happen, ITS#5065 */
2800         if ( BER_BVISNULL( &first )) {
2801                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2802                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2803                 return 0;
2804         }
2805         op->o_bd = si->si_wbe;
2806         slap_queue_csn( op, &first );
2807
2808         op->o_tag = LDAP_REQ_MODIFY;
2809
2810         cb.sc_response = null_callback;
2811         cb.sc_private = si;
2812
2813         op->o_callback = &cb;
2814         op->o_req_dn = op->o_bd->be_suffix[0];
2815         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2816
2817         /* update contextCSN */
2818         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2819
2820         op->orm_modlist = &mod;
2821         op->orm_no_opattrs = 1;
2822         rc = op->o_bd->be_modify( op, &rs_modify );
2823         op->orm_no_opattrs = 0;
2824         op->o_msgid = 0;
2825
2826         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2827                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2828                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2829                 /* If we replaced any old values */
2830                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2831                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2832                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2833                                                 &mod.sml_values[i] );
2834                 }
2835                 /* Handle any added values */
2836                 if ( i < mod.sml_numvals ) {
2837                         si->si_cookieState->cs_num = mod.sml_numvals;
2838                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2839                         free( si->si_cookieState->cs_sids );
2840                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2841                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2842                 }
2843
2844                 si->si_cookieState->cs_age++;
2845                 si->si_cookieAge = si->si_cookieState->cs_age;
2846         } else {
2847                 Debug( LDAP_DEBUG_ANY,
2848                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2849                         si->si_ridtxt, rs_modify.sr_err, 0 );
2850         }
2851         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2852
2853         op->o_bd = be;
2854         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2855         BER_BVZERO( &op->o_csn );
2856         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2857         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2858
2859         return rc;
2860 }
2861
2862 static void
2863 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2864         Modifications ***mret, Modifications ***mcur )
2865 {
2866         int i, j;
2867         Modifications *mod, **modtail;
2868
2869         modtail = *mret;
2870
2871         if ( old ) {
2872                 int n, o, nn, no;
2873                 struct berval **adds, **dels;
2874                 /* count old and new */
2875                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2876                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2877
2878                 /* there MUST be both old and new values */
2879                 assert( o != 0 );
2880                 assert( n != 0 );
2881                 j = 0;
2882
2883                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2884                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2885
2886                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2887                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2888
2889                 nn = n; no = o;
2890
2891                 for ( i=0; i<o; i++ ) {
2892                         for ( j=0; j<n; j++ ) {
2893                                 if ( !adds[j] )
2894                                         continue;
2895                                 if ( bvmatch( dels[i], adds[j] ) ) {
2896                                         no--;
2897                                         nn--;
2898                                         adds[j] = NULL;
2899                                         dels[i] = NULL;
2900                                         break;
2901                                 }
2902                         }
2903                 }
2904
2905                 /* Don't delete/add an objectClass, always use the replace op.
2906                  * Modify would fail if provider has replaced entry with a new,
2907                  * and the new explicitly includes a superior of a class that was
2908                  * only included implicitly in the old entry.  Ref ITS#5517.
2909                  */
2910                 if ( nn && no < o && old->a_desc == slap_schema.si_ad_objectClass )
2911                         no = o;
2912
2913                 i = j;
2914                 /* all old values were deleted, just use the replace op */
2915                 if ( no == o ) {
2916                         i = j-1;
2917                 } else if ( no ) {
2918                 /* delete some values */
2919                         mod = ch_malloc( sizeof( Modifications ) );
2920                         mod->sml_op = LDAP_MOD_DELETE;
2921                         mod->sml_flags = 0;
2922                         mod->sml_desc = old->a_desc;
2923                         mod->sml_type = mod->sml_desc->ad_cname;
2924                         mod->sml_numvals = no;
2925                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2926                         if ( old->a_vals != old->a_nvals ) {
2927                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2928                         } else {
2929                                 mod->sml_nvalues = NULL;
2930                         }
2931                         j = 0;
2932                         for ( i = 0; i < o; i++ ) {
2933                                 if ( !dels[i] ) continue;
2934                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2935                                 if ( mod->sml_nvalues ) {
2936                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2937                                 }
2938                                 j++;
2939                         }
2940                         BER_BVZERO( &mod->sml_values[j] );
2941                         if ( mod->sml_nvalues ) {
2942                                 BER_BVZERO( &mod->sml_nvalues[j] );
2943                         }
2944                         *modtail = mod;
2945                         modtail = &mod->sml_next;
2946                         i = j;
2947                 }
2948                 op->o_tmpfree( dels, op->o_tmpmemctx );
2949                 /* some values were added */
2950                 if ( nn && no < o ) {
2951                         mod = ch_malloc( sizeof( Modifications ) );
2952                         mod->sml_op = LDAP_MOD_ADD;
2953                         mod->sml_flags = 0;
2954                         mod->sml_desc = old->a_desc;
2955                         mod->sml_type = mod->sml_desc->ad_cname;
2956                         mod->sml_numvals = nn;
2957                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2958                         if ( old->a_vals != old->a_nvals ) {
2959                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2960                         } else {
2961                                 mod->sml_nvalues = NULL;
2962                         }
2963                         j = 0;
2964                         for ( i = 0; i < n; i++ ) {
2965                                 if ( !adds[i] ) continue;
2966                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2967                                 if ( mod->sml_nvalues ) {
2968                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2969                                 }
2970                                 j++;
2971                         }
2972                         BER_BVZERO( &mod->sml_values[j] );
2973                         if ( mod->sml_nvalues ) {
2974                                 BER_BVZERO( &mod->sml_nvalues[j] );
2975                         }
2976                         *modtail = mod;
2977                         modtail = &mod->sml_next;
2978                         i = j;
2979                 }
2980                 op->o_tmpfree( adds, op->o_tmpmemctx );
2981         } else {
2982                 /* new attr, just use the new mod */
2983                 i = 0;
2984                 j = 1;
2985         }
2986         /* advance to next element */
2987         mod = **mcur;
2988         if ( mod ) {
2989                 if ( i != j ) {
2990                         **mcur = mod->sml_next;
2991                         *modtail = mod;
2992                         modtail = &mod->sml_next;
2993                 } else {
2994                         *mcur = &mod->sml_next;
2995                 }
2996         }
2997         *mret = modtail;
2998 }
2999
3000 static int
3001 dn_callback(
3002         Operation*      op,
3003         SlapReply*      rs )
3004 {
3005         dninfo *dni = op->o_callback->sc_private;
3006
3007         if ( rs->sr_type == REP_SEARCH ) {
3008                 if ( !BER_BVISNULL( &dni->dn ) ) {
3009                         Debug( LDAP_DEBUG_ANY,
3010                                 "dn_callback : consistency error - "
3011                                 "entryUUID is not unique\n", 0, 0, 0 );
3012                 } else {
3013                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3014                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3015                         /* If there is a new entry, see if it differs from the old.
3016                          * We compare the non-normalized values so that cosmetic changes
3017                          * in the provider are always propagated.
3018                          */
3019                         if ( dni->new_entry ) {
3020                                 Modifications **modtail, **ml;
3021                                 Attribute *old, *new;
3022                                 int is_ctx;
3023
3024                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3025                                         &op->o_bd->be_nsuffix[0] );
3026
3027                                 /* Did the DN change?
3028                                  */
3029                                 if ( !dn_match( &rs->sr_entry->e_name,
3030                                                 &dni->new_entry->e_name ) )
3031                                 {
3032                                         struct berval oldRDN, oldVal;
3033                                         AttributeDescription *ad = NULL;
3034                                         Attribute *a;
3035
3036                                         dni->renamed = 1;
3037                                         /* See if the oldRDN was deleted */
3038                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3039                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3040                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3041                                                 oldRDN.bv_val );
3042                                         oldRDN.bv_len -= oldVal.bv_len + 2;
3043                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3044                                         a = attr_find( dni->new_entry->e_attrs, ad );
3045                                         if ( !a || attr_valfind( a,
3046                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3047                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3048                                                 SLAP_MR_VALUE_OF_SYNTAX,
3049                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3050                                         {
3051                                                 dni->delOldRDN = 1;
3052                                         }
3053                                         /* OK, this was just a modDN, we're done */
3054                                         return LDAP_SUCCESS;
3055                                 }
3056
3057                                 modtail = &dni->mods;
3058                                 ml = dni->modlist;
3059
3060                                 /* Make sure new entry is actually newer than old entry */
3061                                 old = attr_find( rs->sr_entry->e_attrs,
3062                                         slap_schema.si_ad_entryCSN );
3063                                 new = attr_find( dni->new_entry->e_attrs,
3064                                         slap_schema.si_ad_entryCSN );
3065                                 if ( new && old ) {
3066                                         int rc, len = old->a_vals[0].bv_len;
3067                                         if ( len > new->a_vals[0].bv_len )
3068                                                 len = new->a_vals[0].bv_len;
3069                                         rc = memcmp( old->a_vals[0].bv_val,
3070                                                 new->a_vals[0].bv_val, len );
3071                                         if ( rc > 0 ) {
3072                                                 Debug( LDAP_DEBUG_SYNC,
3073                                                         "dn_callback : new entry is older than ours "
3074                                                         "%s ours %s, new %s\n",
3075                                                         rs->sr_entry->e_name.bv_val,
3076                                                         old->a_vals[0].bv_val,
3077                                                         new->a_vals[0].bv_val );
3078                                                 return LDAP_SUCCESS;
3079                                         } else if ( rc == 0 ) {
3080                                                 Debug( LDAP_DEBUG_SYNC,
3081                                                         "dn_callback : entries have identical CSN "
3082                                                         "%s %s\n",
3083                                                         rs->sr_entry->e_name.bv_val,
3084                                                         old->a_vals[0].bv_val, 0 );
3085                                                 return LDAP_SUCCESS;
3086                                         }
3087                                 }
3088
3089                                 /* We assume that attributes are saved in the same order
3090                                  * in the remote and local databases. So if we walk through
3091                                  * the attributeDescriptions one by one they should match in
3092                                  * lock step. If not, look for an add or delete.
3093                                  */
3094                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3095                                                 old && new; )
3096                                 {
3097                                         /* If we've seen this before, use its mod now */
3098                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3099                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3100                                                 new = new->a_next;
3101                                                 continue;
3102                                         }
3103                                         /* Skip contextCSN */
3104                                         if ( is_ctx && old->a_desc ==
3105                                                 slap_schema.si_ad_contextCSN ) {
3106                                                 old = old->a_next;
3107                                                 continue;
3108                                         }
3109
3110                                         if ( old->a_desc != new->a_desc ) {
3111                                                 Modifications *mod;
3112                                                 Attribute *tmp;
3113
3114                                                 /* If it's just been re-added later,
3115                                                  * remember that we've seen it.
3116                                                  */
3117                                                 tmp = attr_find( new, old->a_desc );
3118                                                 if ( tmp ) {
3119                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3120                                                 } else {
3121                                                         /* If it's a new attribute, pull it in.
3122                                                          */
3123                                                         tmp = attr_find( old, new->a_desc );
3124                                                         if ( !tmp ) {
3125                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3126                                                                 new = new->a_next;
3127                                                                 continue;
3128                                                         }
3129                                                         /* Delete old attr */
3130                                                         mod = ch_malloc( sizeof( Modifications ) );
3131                                                         mod->sml_op = LDAP_MOD_DELETE;
3132                                                         mod->sml_flags = 0;
3133                                                         mod->sml_desc = old->a_desc;
3134                                                         mod->sml_type = mod->sml_desc->ad_cname;
3135                                                         mod->sml_numvals = 0;
3136                                                         mod->sml_values = NULL;
3137                                                         mod->sml_nvalues = NULL;
3138                                                         *modtail = mod;
3139                                                         modtail = &mod->sml_next;
3140                                                 }
3141                                                 old = old->a_next;
3142                                                 continue;
3143                                         }
3144                                         /* kludge - always update modifiersName so that it
3145                                          * stays co-located with the other mod opattrs. But only
3146                                          * if we know there are other valid mods.
3147                                          */
3148                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3149                                                 dni->mods )
3150                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3151                                         else
3152                                                 attr_cmp( op, old, new, &modtail, &ml );
3153                                         new = new->a_next;
3154                                         old = old->a_next;
3155                                 }
3156                                 *modtail = *ml;
3157                                 *ml = NULL;
3158                         }
3159                 }
3160         } else if ( rs->sr_type == REP_RESULT ) {
3161                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3162                         Debug( LDAP_DEBUG_ANY,
3163                                 "dn_callback : consistency error - "
3164                                 "entryUUID is not unique\n", 0, 0, 0 );
3165                 }
3166         }
3167
3168         return LDAP_SUCCESS;
3169 }
3170
3171 static int
3172 nonpresent_callback(
3173         Operation*      op,
3174         SlapReply*      rs )
3175 {
3176         syncinfo_t *si = op->o_callback->sc_private;
3177         Attribute *a;
3178         int count = 0;
3179         struct berval* present_uuid = NULL;
3180         struct nonpresent_entry *np_entry;
3181
3182         if ( rs->sr_type == REP_RESULT ) {
3183                 count = avl_free( si->si_presentlist, ch_free );
3184                 si->si_presentlist = NULL;
3185
3186         } else if ( rs->sr_type == REP_SEARCH ) {
3187                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3188                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3189
3190                         if ( a ) {
3191                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3192                                         syncuuid_cmp );
3193                         }
3194
3195                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3196                                 char buf[sizeof("rid=999 not")];
3197
3198                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3199                                         present_uuid ? "got" : "not" );
3200
3201                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3202                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3203                         }
3204
3205                         if ( a == NULL ) return 0;
3206                 }
3207
3208                 if ( present_uuid == NULL ) {
3209                         np_entry = (struct nonpresent_entry *)
3210                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3211                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3212                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3213                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3214
3215                 } else {
3216                         avl_delete( &si->si_presentlist,
3217                                 &a->a_nvals[0], syncuuid_cmp );
3218                         ch_free( present_uuid );
3219                 }
3220         }
3221         return LDAP_SUCCESS;
3222 }
3223
3224 static int
3225 null_callback(
3226         Operation*      op,
3227         SlapReply*      rs )
3228 {
3229         if ( rs->sr_err != LDAP_SUCCESS &&
3230                 rs->sr_err != LDAP_REFERRAL &&
3231                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3232                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3233                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3234         {
3235                 Debug( LDAP_DEBUG_ANY,
3236                         "null_callback : error code 0x%x\n",
3237                         rs->sr_err, 0, 0 );
3238         }
3239         return LDAP_SUCCESS;
3240 }
3241
3242 static struct berval *
3243 slap_uuidstr_from_normalized(
3244         struct berval* uuidstr,
3245         struct berval* normalized,
3246         void *ctx )
3247 {
3248 #if 0
3249         struct berval *new;
3250         unsigned char nibble;
3251         int i, d = 0;
3252
3253         if ( normalized == NULL ) return NULL;
3254         if ( normalized->bv_len != 16 ) return NULL;
3255
3256         if ( uuidstr ) {
3257                 new = uuidstr;
3258         } else {
3259                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3260                 if ( new == NULL ) {
3261                         return NULL;
3262                 }
3263         }
3264
3265         new->bv_len = 36;
3266
3267         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3268                 if ( new != uuidstr ) {
3269                         slap_sl_free( new, ctx );
3270                 }
3271                 return NULL;
3272         }
3273
3274         for ( i = 0; i < 16; i++ ) {
3275                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3276                         new->bv_val[(i<<1)+d] = '-';
3277                         d += 1;
3278                 }
3279
3280                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3281                 if ( nibble < 10 ) {
3282                         new->bv_val[(i<<1)+d] = nibble + '0';
3283                 } else {
3284                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3285                 }
3286
3287                 nibble = (normalized->bv_val[i]) & 0xF;
3288                 if ( nibble < 10 ) {
3289                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3290                 } else {
3291                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3292                 }
3293         }
3294
3295         new->bv_val[new->bv_len] = '\0';
3296         return new;
3297 #endif
3298
3299         struct berval   *new;
3300         int             rc = 0;
3301
3302         if ( normalized == NULL ) return NULL;
3303         if ( normalized->bv_len != 16 ) return NULL;
3304
3305         if ( uuidstr ) {
3306                 new = uuidstr;
3307
3308         } else {
3309                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3310                 if ( new == NULL ) {
3311                         return NULL;
3312                 }
3313         }
3314
3315         new->bv_len = 36;
3316
3317         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3318                 rc = 1;
3319                 goto done;
3320         }
3321
3322         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3323                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3324
3325 done:;
3326         if ( rc == -1 ) {
3327                 if ( new != NULL ) {
3328                         if ( new->bv_val != NULL ) {
3329                                 slap_sl_free( new->bv_val, ctx );
3330                         }
3331
3332                         if ( new != uuidstr ) {
3333                                 slap_sl_free( new, ctx );
3334                         }
3335                 }
3336                 new = NULL;
3337
3338         } else {
3339                 new->bv_len = rc;
3340         }
3341
3342         return new;
3343 }
3344
3345 static int
3346 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3347 {
3348         const struct berval *uuid1 = v_uuid1;
3349         const struct berval *uuid2 = v_uuid2;
3350         int rc = uuid1->bv_len - uuid2->bv_len;
3351         if ( rc ) return rc;
3352         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3353 }
3354
3355 void
3356 syncinfo_free( syncinfo_t *sie, int free_all )
3357 {
3358         syncinfo_t *si_next;
3359
3360         if ( free_all && sie->si_cookieState ) {
3361                 ch_free( sie->si_cookieState->cs_sids );
3362                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3363                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3364                 ch_free( sie->si_cookieState );
3365         }
3366         do {
3367                 si_next = sie->si_next;
3368
3369                 if ( sie->si_ld ) {
3370                         if ( sie->si_conn ) {
3371                                 connection_client_stop( sie->si_conn );
3372                                 sie->si_conn = NULL;
3373                         }
3374                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3375                 }
3376
3377                 /* re-fetch it, in case it was already removed */
3378                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3379                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3380                 if ( sie->si_re ) {
3381                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3382                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3383                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3384                 }
3385
3386                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3387                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3388
3389                 bindconf_free( &sie->si_bindconf );
3390
3391                 if ( sie->si_filterstr.bv_val ) {
3392                         ch_free( sie->si_filterstr.bv_val );
3393                 }
3394                 if ( sie->si_logfilterstr.bv_val ) {
3395                         ch_free( sie->si_logfilterstr.bv_val );
3396                 }
3397                 if ( sie->si_base.bv_val ) {
3398                         ch_free( sie->si_base.bv_val );
3399                 }
3400                 if ( sie->si_logbase.bv_val ) {
3401                         ch_free( sie->si_logbase.bv_val );
3402                 }
3403                 if ( sie->si_attrs ) {
3404                         int i = 0;
3405                         while ( sie->si_attrs[i] != NULL ) {
3406                                 ch_free( sie->si_attrs[i] );
3407                                 i++;
3408                         }
3409                         ch_free( sie->si_attrs );
3410                 }
3411                 if ( sie->si_exattrs ) {
3412                         int i = 0;
3413                         while ( sie->si_exattrs[i] != NULL ) {
3414                                 ch_free( sie->si_exattrs[i] );
3415                                 i++;
3416                         }
3417                         ch_free( sie->si_exattrs );
3418                 }
3419                 if ( sie->si_anlist ) {
3420                         int i = 0;
3421                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3422                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3423                                 i++;
3424                         }
3425                         ch_free( sie->si_anlist );
3426                 }
3427                 if ( sie->si_exanlist ) {
3428                         int i = 0;
3429                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3430                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3431                                 i++;
3432                         }
3433                         ch_free( sie->si_exanlist );
3434                 }
3435                 if ( sie->si_retryinterval ) {
3436                         ch_free( sie->si_retryinterval );
3437                 }
3438                 if ( sie->si_retrynum ) {
3439                         ch_free( sie->si_retrynum );
3440                 }
3441                 if ( sie->si_retrynum_init ) {
3442                         ch_free( sie->si_retrynum_init );
3443                 }
3444                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3445                 if ( sie->si_presentlist ) {
3446                     avl_free( sie->si_presentlist, ch_free );
3447                 }
3448                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3449                         struct nonpresent_entry* npe;
3450                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3451                         LDAP_LIST_REMOVE( npe, npe_link );
3452                         if ( npe->npe_name ) {
3453                                 if ( npe->npe_name->bv_val ) {
3454                                         ch_free( npe->npe_name->bv_val );
3455                                 }
3456                                 ch_free( npe->npe_name );
3457                         }
3458                         if ( npe->npe_nname ) {
3459                                 if ( npe->npe_nname->bv_val ) {
3460                                         ch_free( npe->npe_nname->bv_val );
3461                                 }
3462                                 ch_free( npe->npe_nname );
3463                         }
3464                         ch_free( npe );
3465                 }
3466                 ch_free( sie );
3467                 sie = si_next;
3468         } while ( free_all && si_next );
3469 }
3470
3471
3472
3473 /* NOTE: used & documented in slapd.conf(5) */
3474 #define IDSTR                   "rid"
3475 #define PROVIDERSTR             "provider"
3476 #define SCHEMASTR               "schemachecking"
3477 #define FILTERSTR               "filter"
3478 #define SEARCHBASESTR           "searchbase"
3479 #define SCOPESTR                "scope"
3480 #define ATTRSONLYSTR            "attrsonly"
3481 #define ATTRSSTR                "attrs"
3482 #define TYPESTR                 "type"
3483 #define INTERVALSTR             "interval"
3484 #define RETRYSTR                "retry"
3485 #define SLIMITSTR               "sizelimit"
3486 #define TLIMITSTR               "timelimit"
3487 #define SYNCDATASTR             "syncdata"
3488 #define LOGBASESTR              "logbase"
3489 #define LOGFILTERSTR    "logfilter"
3490
3491 /* FIXME: undocumented */
3492 #define EXATTRSSTR              "exattrs"
3493 #define MANAGEDSAITSTR          "manageDSAit"
3494
3495 /* mandatory */
3496 #define GOT_ID                  0x0001
3497 #define GOT_PROVIDER    0x0002
3498 #define GOT_BASE                0x0004
3499
3500 /* check */
3501 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3502
3503 static struct {
3504         struct berval key;
3505         int val;
3506 } scopes[] = {
3507         { BER_BVC("base"), LDAP_SCOPE_BASE },
3508         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3509         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3510         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3511         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3512         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3513         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3514         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3515         { BER_BVNULL, 0 }
3516 };
3517
3518 static slap_verbmasks datamodes[] = {
3519         { BER_BVC("default"), SYNCDATA_DEFAULT },
3520         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3521         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3522         { BER_BVNULL, 0 }
3523 };
3524
3525 static int
3526 parse_syncrepl_line(
3527         ConfigArgs      *c,
3528         syncinfo_t      *si )
3529 {
3530         int     gots = 0;
3531         int     i;
3532         char    *val;
3533
3534         for ( i = 1; i < c->argc; i++ ) {
3535                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3536                                         STRLENOF( IDSTR "=" ) ) )
3537                 {
3538                         int tmp;
3539                         /* '\0' string terminator accounts for '=' */
3540                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3541                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3542                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3543                                         "Error: parse_syncrepl_line: "
3544                                         "unable to parse syncrepl id \"%s\"", val );
3545                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3546                                 return -1;
3547                         }
3548                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3549                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3550                                         "Error: parse_syncrepl_line: "
3551                                         "syncrepl id %d is out of range [0..4095]", tmp );
3552                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3553                                 return -1;
3554                         }
3555                         si->si_rid = tmp;
3556                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3557                         gots |= GOT_ID;
3558                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3559                                         STRLENOF( PROVIDERSTR "=" ) ) )
3560                 {
3561                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3562                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3563                         gots |= GOT_PROVIDER;
3564                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3565                                         STRLENOF( SCHEMASTR "=" ) ) )
3566                 {
3567                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3568                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3569                                 si->si_schemachecking = 1;
3570                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3571                                 si->si_schemachecking = 0;
3572                         } else {
3573                                 si->si_schemachecking = 1;
3574                         }
3575                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3576                                         STRLENOF( FILTERSTR "=" ) ) )
3577                 {
3578                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3579                         if ( si->si_filterstr.bv_val )
3580                                 ch_free( si->si_filterstr.bv_val );
3581                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3582                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3583                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3584                 {
3585                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3586                         if ( si->si_logfilterstr.bv_val )
3587                                 ch_free( si->si_logfilterstr.bv_val );
3588                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3589                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3590                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3591                 {
3592                         struct berval   bv;
3593                         int             rc;
3594
3595                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3596                         if ( si->si_base.bv_val ) {
3597                                 ch_free( si->si_base.bv_val );
3598                         }
3599                         ber_str2bv( val, 0, 0, &bv );
3600                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3601                         if ( rc != LDAP_SUCCESS ) {
3602                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3603                                         "Invalid base DN \"%s\": %d (%s)",
3604                                         val, rc, ldap_err2string( rc ) );
3605                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3606                                 return -1;
3607                         }
3608                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3609                                 ch_free( si->si_base.bv_val );
3610                                 BER_BVZERO( &si->si_base );
3611                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3612                                         "Base DN \"%s\" is not within the database naming context",
3613                                         val );
3614                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3615                                 return -1;
3616                         }
3617                         gots |= GOT_BASE;
3618                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3619                                         STRLENOF( LOGBASESTR "=" ) ) )
3620                 {
3621                         struct berval   bv;
3622                         int             rc;
3623
3624                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3625                         if ( si->si_logbase.bv_val ) {
3626                                 ch_free( si->si_logbase.bv_val );
3627                         }
3628                         ber_str2bv( val, 0, 0, &bv );
3629                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3630                         if ( rc != LDAP_SUCCESS ) {
3631                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3632                                         "Invalid logbase DN \"%s\": %d (%s)",
3633                                         val, rc, ldap_err2string( rc ) );
3634                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3635                                 return -1;
3636                         }
3637                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3638                                         STRLENOF( SCOPESTR "=" ) ) )
3639                 {
3640                         int j;
3641                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3642                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3643                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3644                                         si->si_scope = scopes[j].val;
3645                                         break;
3646                                 }
3647                         }
3648                         if ( BER_BVISNULL(&scopes[j].key) ) {
3649                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3650                                         "Error: parse_syncrepl_line: "
3651                                         "unknown scope \"%s\"", val);
3652                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3653                                 return -1;
3654                         }
3655                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3656                                         STRLENOF( ATTRSONLYSTR ) ) )
3657                 {
3658                         si->si_attrsonly = 1;
3659                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3660                                         STRLENOF( ATTRSSTR "=" ) ) )
3661                 {
3662                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3663                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3664                                 char *attr_fname;
3665                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3666                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3667                                 if ( si->si_anlist == NULL ) {
3668                                         ch_free( attr_fname );
3669                                         return -1;
3670                                 }
3671                                 si->si_anfile = attr_fname;
3672                         } else {
3673                                 char *str, *s, *next;
3674                                 const char *delimstr = " ,\t";
3675                                 str = ch_strdup( val );
3676                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3677                                                 s != NULL;
3678                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3679                                 {
3680                                         if ( strlen(s) == 1 && *s == '*' ) {
3681                                                 si->si_allattrs = 1;
3682                                                 val[ s - str ] = delimstr[0];
3683                                         }
3684                                         if ( strlen(s) == 1 && *s == '+' ) {
3685                                                 si->si_allopattrs = 1;
3686                                                 val [ s - str ] = delimstr[0];
3687                                         }
3688                                 }
3689                                 ch_free( str );
3690                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3691                                 if ( si->si_anlist == NULL ) {
3692                                         return -1;
3693                                 }
3694                         }
3695                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3696                                         STRLENOF( EXATTRSSTR "=" ) ) )
3697                 {
3698                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3699                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3700                                 char *attr_fname;
3701                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3702                                 si->si_exanlist = file2anlist(
3703                                         si->si_exanlist, attr_fname, " ,\t" );
3704                                 if ( si->si_exanlist == NULL ) {
3705                                         ch_free( attr_fname );
3706                                         return -1;
3707                                 }
3708                                 ch_free( attr_fname );
3709                         } else {
3710                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3711                                 if ( si->si_exanlist == NULL ) {
3712                                         return -1;
3713                                 }
3714                         }
3715                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3716                                         STRLENOF( TYPESTR "=" ) ) )
3717                 {
3718                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3719                         if ( !strncasecmp( val, "refreshOnly",
3720                                                 STRLENOF("refreshOnly") ) )
3721                         {
3722                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3723                         } else if ( !strncasecmp( val, "refreshAndPersist",
3724                                                 STRLENOF("refreshAndPersist") ) )
3725                         {
3726                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3727                                 si->si_interval = 60;
3728                         } else {
3729                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3730                                         "Error: parse_syncrepl_line: "
3731                                         "unknown sync type \"%s\"", val);
3732                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3733                                 return -1;
3734                         }
3735                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3736                                         STRLENOF( INTERVALSTR "=" ) ) )
3737                 {
3738                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3739                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3740                                 si->si_interval = 0;
3741                         } else if ( strchr( val, ':' ) != NULL ) {
3742                                 char *next, *ptr = val;
3743                                 int dd, hh, mm, ss;
3744
3745                                 dd = strtol( ptr, &next, 10 );
3746                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3747                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3748                                                 "Error: parse_syncrepl_line: "
3749                                                 "invalid interval \"%s\", unable to parse days", val );
3750                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3751                                         return -1;
3752                                 }
3753                                 ptr = next + 1;
3754                                 hh = strtol( ptr, &next, 10 );
3755                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3756                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3757                                                 "Error: parse_syncrepl_line: "
3758                                                 "invalid interval \"%s\", unable to parse hours", val );
3759                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3760                                         return -1;
3761                                 }
3762                                 ptr = next + 1;
3763                                 mm = strtol( ptr, &next, 10 );
3764                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3765                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3766                                                 "Error: parse_syncrepl_line: "
3767                                                 "invalid interval \"%s\", unable to parse minutes", val );
3768                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3769                                         return -1;
3770                                 }
3771                                 ptr = next + 1;
3772                                 ss = strtol( ptr, &next, 10 );
3773                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3774                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3775                                                 "Error: parse_syncrepl_line: "
3776                                                 "invalid interval \"%s\", unable to parse seconds", val );
3777                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3778                                         return -1;
3779                                 }
3780                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3781                         } else {
3782                                 unsigned long   t;
3783
3784                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3785                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3786                                                 "Error: parse_syncrepl_line: "
3787                                                 "invalid interval \"%s\"", val );
3788                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3789                                         return -1;
3790                                 }
3791                                 si->si_interval = (time_t)t;
3792                         }
3793                         if ( si->si_interval < 0 ) {
3794                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3795                                         "Error: parse_syncrepl_line: "
3796                                         "invalid interval \"%ld\"",
3797                                         (long) si->si_interval);
3798                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3799                                 return -1;
3800                         }
3801                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3802                                         STRLENOF( RETRYSTR "=" ) ) )
3803                 {
3804                         char **retry_list;
3805                         int j, k, n;
3806
3807                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3808                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3809                         retry_list[0] = NULL;
3810
3811                         slap_str2clist( &retry_list, val, " ,\t" );
3812
3813                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3814                         n = k / 2;
3815                         if ( k % 2 ) {
3816                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3817                                         "Error: incomplete syncrepl retry list" );
3818                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3819                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3820                                         ch_free( retry_list[k] );
3821                                 }
3822                                 ch_free( retry_list );
3823                                 return 1;
3824                         }
3825                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3826                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3827                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3828                         for ( j = 0; j < n; j++ ) {
3829                                 unsigned long   t;
3830                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3831                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3832                                                 "Error: invalid retry interval \"%s\" (#%d)",
3833                                                 retry_list[j*2], j );
3834                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3835                                         /* do some cleanup */
3836                                         return 1;
3837                                 }
3838                                 si->si_retryinterval[j] = (time_t)t;
3839                                 if ( *retry_list[j*2+1] == '+' ) {
3840                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3841                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3842                                         j++;
3843                                         break;
3844                                 } else {
3845                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3846                                                         || si->si_retrynum_init[j] <= 0 )
3847                                         {
3848                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3849                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3850                                                         retry_list[j*2+1], j );
3851                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3852                                                 /* do some cleanup */
3853                                                 return 1;
3854                                         }
3855                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3856                                                         || si->si_retrynum[j] <= 0 )
3857                                         {
3858                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3859                                                         "Error: invalid retry number \"%s\" (#%d)",
3860                                                         retry_list[j*2+1], j );
3861                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3862                                                 /* do some cleanup */
3863                                                 return 1;
3864                                         }
3865                                 }
3866                         }
3867                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3868                         si->si_retrynum[j] = RETRYNUM_TAIL;
3869                         si->si_retryinterval[j] = 0;
3870
3871                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3872                                 ch_free( retry_list[k] );
3873                         }
3874                         ch_free( retry_list );
3875                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3876                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3877                 {
3878                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3879                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3880                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3881                         {
3882                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3883                                         "invalid manageDSAit value \"%s\".\n",
3884                                         val );
3885                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3886                                 return 1;
3887                         }
3888                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3889                                         STRLENOF( SLIMITSTR "=") ) )
3890                 {
3891                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3892                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3893                                 si->si_slimit = 0;
3894
3895                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3896                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3897                                         "invalid size limit value \"%s\".\n",
3898                                         val );
3899                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3900                                 return 1;
3901                         }
3902                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3903                                         STRLENOF( TLIMITSTR "=" ) ) )
3904                 {
3905                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3906                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3907                                 si->si_tlimit = 0;
3908
3909                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3910                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3911                                         "invalid time limit value \"%s\".\n",
3912                                         val );
3913                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3914                                 return 1;
3915                         }
3916                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3917                                         STRLENOF( SYNCDATASTR "=" ) ) )
3918                 {
3919                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3920                         si->si_syncdata = verb_to_mask( val, datamodes );
3921                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3922                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3923                                 "Error: parse_syncrepl_line: "
3924                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3925                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3926                         return -1;
3927                 }
3928         }
3929
3930         if ( gots != GOT_ALL ) {
3931                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3932                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3933                         gots & GOT_ID ? "" : " "IDSTR,
3934                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3935                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3936                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3937                 return -1;
3938         }
3939
3940         return 0;
3941 }
3942
3943 static int
3944 add_syncrepl(
3945         ConfigArgs *c )
3946 {
3947         syncinfo_t *si;
3948         int     rc = 0;
3949
3950         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3951                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3952                         "operations required for syncrepl", c->be->be_type );
3953                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3954                 return 1;
3955         }
3956         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3957                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3958                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3959                 return 1;
3960         }
3961         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3962
3963         if ( si == NULL ) {
3964                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3965                 return 1;
3966         }
3967
3968         si->si_bindconf.sb_tls = SB_TLS_OFF;
3969         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3970         si->si_schemachecking = 0;
3971         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3972                 &si->si_filterstr );
3973         si->si_base.bv_val = NULL;
3974         si->si_scope = LDAP_SCOPE_SUBTREE;
3975         si->si_attrsonly = 0;
3976         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3977         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3978         si->si_attrs = NULL;
3979         si->si_allattrs = 0;
3980         si->si_allopattrs = 0;
3981         si->si_exattrs = NULL;
3982         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3983         si->si_interval = 86400;
3984         si->si_retryinterval = NULL;
3985         si->si_retrynum_init = NULL;
3986         si->si_retrynum = NULL;
3987         si->si_manageDSAit = 0;
3988         si->si_tlimit = 0;
3989         si->si_slimit = 0;
3990
3991         si->si_presentlist = NULL;
3992         LDAP_LIST_INIT( &si->si_nonpresentlist );
3993         ldap_pvt_thread_mutex_init( &si->si_mutex );
3994
3995         rc = parse_syncrepl_line( c, si );
3996
3997         if ( rc == 0 ) {
3998                 /* Must be LDAPv3 because we need controls */
3999                 switch ( si->si_bindconf.sb_version ) {
4000                 case 0:
4001                         /* not explicitly set */
4002                         si->si_bindconf.sb_version = LDAP_VERSION3;
4003                         break;
4004                 case 3:
4005                         /* explicitly set */
4006                         break;
4007                 default:
4008                         Debug( LDAP_DEBUG_ANY,
4009                                 "version %d incompatible with syncrepl\n",
4010                                 si->si_bindconf.sb_version, 0, 0 );
4011                         syncinfo_free( si, 0 );
4012                         return 1;
4013                 }
4014
4015                 si->si_be = c->be;
4016                 if ( slapMode & SLAP_SERVER_MODE ) {
4017                         Listener **l = slapd_get_listeners();
4018                         int isMe = 0;
4019
4020                         /* check if URL points to current server. If so, ignore
4021                          * this configuration. We require an exact match. Just
4022                          * in case they really want to do this, they can vary
4023                          * the case of the URL to allow it.
4024                          */
4025                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4026                                 int i;
4027                                 for ( i=0; l[i]; i++ ) {
4028                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4029                                                 isMe = 1;
4030                                                 break;
4031                                         }
4032                                 }
4033                         }
4034
4035                         if ( !isMe ) {
4036                                 init_syncrepl( si );
4037                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4038                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4039                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4040                                         si->si_ridtxt );
4041                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4042                                 if ( si->si_re )
4043                                         rc = config_sync_shadow( c ) ? -1 : 0;
4044                                 else
4045                                         rc = -1;
4046                         }
4047                 } else {
4048                         /* mirrormode still needs to see this flag in tool mode */
4049                         rc = config_sync_shadow( c ) ? -1 : 0;
4050                 }
4051         }
4052
4053 #ifdef HAVE_TLS
4054         /* Use main slapd defaults */
4055         bindconf_tls_defaults( &si->si_bindconf );
4056 #endif
4057         if ( rc < 0 ) {
4058                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4059                 syncinfo_free( si, 0 );
4060                 return 1;
4061         } else {
4062                 Debug( LDAP_DEBUG_CONFIG,
4063                         "Config: ** successfully added syncrepl \"%s\"\n",
4064                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4065                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4066                 if ( !si->si_schemachecking ) {
4067                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
4068                 }
4069                 if ( c->be->be_syncinfo ) {
4070                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4071                 } else {
4072                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4073                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4074                 }
4075                 si->si_next = c->be->be_syncinfo;
4076                 c->be->be_syncinfo = si;
4077                 return 0;
4078         }
4079 }
4080
4081 static void
4082 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4083 {
4084         struct berval bc, uri;
4085         char buf[BUFSIZ*2], *ptr;
4086         int i;
4087
4088 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
4089
4090         BER_BVZERO( bv );
4091
4092         /* temporarily inhibit bindconf from printing URI */
4093         uri = si->si_bindconf.sb_uri;
4094         BER_BVZERO( &si->si_bindconf.sb_uri );
4095         si->si_bindconf.sb_version = 0;
4096         bindconf_unparse( &si->si_bindconf, &bc );
4097         si->si_bindconf.sb_uri = uri;
4098         si->si_bindconf.sb_version = LDAP_VERSION3;
4099
4100         ptr = buf;
4101         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4102         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4103                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4104         if ( ptr - buf >= sizeof( buf ) ) return;
4105         if ( !BER_BVISNULL( &bc ) ) {
4106                 if ( WHATSLEFT <= bc.bv_len ) {
4107                         free( bc.bv_val );
4108                         return;
4109                 }
4110                 ptr = lutil_strcopy( ptr, bc.bv_val );
4111                 free( bc.bv_val );
4112         }
4113         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4114                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4115                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4116                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4117                 *ptr++ = '"';
4118         }
4119         if ( !BER_BVISNULL( &si->si_base ) ) {
4120                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4121                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4122                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4123                 *ptr++ = '"';
4124         }
4125         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4126                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4127                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4128                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4129                 *ptr++ = '"';
4130         }
4131         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4132                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4133                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4134                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4135                 *ptr++ = '"';
4136         }
4137         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4138                 if ( si->si_scope == scopes[i].val ) {
4139                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4140                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4141                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4142                         break;
4143                 }
4144         }
4145         if ( si->si_attrsonly ) {
4146                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4147                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4148         }
4149         if ( si->si_anfile ) {
4150                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4151                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4152                 ptr = lutil_strcopy( ptr, si->si_anfile );
4153                 *ptr++ = '"';
4154         } else if ( si->si_allattrs || si->si_allopattrs ||
4155                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4156         {
4157                 char *old;
4158
4159                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4160                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4161                 old = ptr;
4162                 /* FIXME: add check for overflow */
4163                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4164                 if ( si->si_allattrs ) {
4165                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4166                         if ( old != ptr ) *ptr++ = ',';
4167                         *ptr++ = '*';
4168                 }
4169                 if ( si->si_allopattrs ) {
4170                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4171                         if ( old != ptr ) *ptr++ = ',';
4172                         *ptr++ = '+';
4173                 }
4174                 *ptr++ = '"';
4175         }
4176         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4177                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4178                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4179                 /* FIXME: add check for overflow */
4180                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4181         }
4182         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4183         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4184         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4185
4186         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4187         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4188         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4189                 "refreshAndPersist" : "refreshOnly" );
4190
4191         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4192                 int dd, hh, mm, ss;
4193
4194                 dd = si->si_interval;
4195                 ss = dd % 60;
4196                 dd /= 60;
4197                 mm = dd % 60;
4198                 dd /= 60;
4199                 hh = dd % 24;
4200                 dd /= 24;
4201                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4202                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4203                 if ( ptr - buf >= sizeof( buf ) ) return;
4204         } else if ( si->si_retryinterval ) {
4205                 int space=0;
4206                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4207                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4208                 for (i=0; si->si_retryinterval[i]; i++) {
4209                         if ( space ) *ptr++ = ' ';
4210                         space = 1;
4211                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4212                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4213                                 *ptr++ = '+';
4214                         else
4215                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4216                 }
4217                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4218                 *ptr++ = '"';
4219         }
4220
4221         if ( si->si_slimit ) {
4222                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4223                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4224                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4225         }
4226
4227         if ( si->si_tlimit ) {
4228                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4229                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4230                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4231         }
4232
4233         if ( si->si_syncdata ) {
4234                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4235                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4236                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4237                         ptr = lutil_strcopy( ptr, bc.bv_val );
4238                 }
4239         }
4240         bc.bv_len = ptr - buf;
4241         bc.bv_val = buf;
4242         ber_dupbv( bv, &bc );
4243 }
4244
4245 int
4246 syncrepl_config( ConfigArgs *c )
4247 {
4248         if (c->op == SLAP_CONFIG_EMIT) {
4249                 if ( c->be->be_syncinfo ) {
4250                         struct berval bv;
4251                         syncinfo_t *si;
4252
4253                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4254                                 syncrepl_unparse( si, &bv );
4255                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4256                         }
4257                         return 0;
4258                 }
4259                 return 1;
4260         } else if ( c->op == LDAP_MOD_DELETE ) {
4261                 cookie_state *cs = NULL;
4262                 if ( c->be->be_syncinfo ) {
4263                         syncinfo_t *si, **sip;
4264                         int i;
4265
4266                         cs = c->be->be_syncinfo->si_cookieState;
4267                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4268                                 si = *sip;
4269                                 if ( c->valx == -1 || i == c->valx ) {
4270                                         int isrunning = 0;
4271                                         *sip = si->si_next;
4272                                         /* If the task is currently active, we have to leave
4273                                          * it running. It will exit on its own. This will only
4274                                          * happen when running on the cn=config DB.
4275                                          */
4276                                         if ( si->si_re ) {
4277                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4278                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4279                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4280                                         }
4281                                         if ( si->si_re && isrunning ) {
4282                                                 si->si_ctype = 0;
4283                                         } else {
4284                                                 syncinfo_free( si, 0 );
4285                                         }
4286                                         if ( i == c->valx )
4287                                                 break;
4288                                 } else {
4289                                         sip = &si->si_next;
4290                                 }
4291                         }
4292                 }
4293                 if ( !c->be->be_syncinfo ) {
4294                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4295                         if ( cs ) {
4296                                 ber_bvarray_free( cs->cs_vals );
4297                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4298                                 ch_free( cs );
4299                         }
4300                 }
4301                 return 0;
4302         }
4303         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4304                 Debug(LDAP_DEBUG_ANY, "%s: "
4305                         "syncrepl: database already shadowed.\n",
4306                         c->log, 0, 0);
4307                 return(1);
4308         } else {
4309                 return add_syncrepl( c );
4310         }
4311 }