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