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