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