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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         Avlnode                 *si_presentlist;
 100         LDAP                    *si_ld;
 101         Connection              *si_conn;
 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                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 526                                         goto done;
 527                                 }
 528                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 529                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 530                                         sizeof(int) );
 531                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 532                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 533                         }
 534                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 535                 }
 536
 537                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 538                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 539                         si->si_syncCookie.sid );
 540         } else {
 541                 AttributeName at[2];
 542                 Attribute a = {0};
 543                 Entry e = {0};
 544                 SlapReply rs = {0};
 545                 int i, j, changed = 0;
 546
 547                 /* Look for contextCSN from syncprov overlay. If
 548                  * there's no overlay, this will be a no-op. That means
 549                  * this is a pure consumer, so local changes will not be
 550                  * allowed, and all changes will already be reflected in
 551                  * the cookieState.
 552                  */
 553                 a.a_desc = slap_schema.si_ad_contextCSN;
 554                 e.e_attrs = &a;
 555                 e.e_name = si->si_wbe->be_suffix[0];
 556                 e.e_nname = si->si_wbe->be_nsuffix[0];
 557                 rs.sr_entry = &e;
 558                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 559                 at[0].an_name = a.a_desc->ad_cname;
 560                 at[0].an_desc = a.a_desc;
 561                 BER_BVZERO( &at[1].an_name );
 562                 op->o_req_dn = e.e_name;
 563                 op->o_req_ndn = e.e_nname;
 564
 565                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 566                 rc = backend_operational( op, &rs );
 567                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 568                         int num = a.a_numvals;
 569                         /* check for differences */
 570                         if ( num != si->si_cookieState->cs_num ) {
 571                                 changed = 1;
 572                         } else {
 573                                 for ( i=0; i<num; i++ ) {
 574                                         if ( ber_bvcmp( &a.a_vals[i],
 575                                                 &si->si_cookieState->cs_vals[i] )) {
 576                                                 changed =1;
 577                                                 break;
 578                                         }
 579                                 }
 580                         }
 581                         if ( changed ) {
 582                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 583                                 ch_free( si->si_cookieState->cs_sids );
 584                                 si->si_cookieState->cs_num = num;
 585                                 si->si_cookieState->cs_vals = a.a_vals;
 586                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 587                                         num, NULL );
 588                                 si->si_cookieState->cs_age++;
 589                         } else {
 590                                 ber_bvarray_free( a.a_vals );
 591                         }
 592                         changed = 0;
 593                 }
 594                 /* See if the cookieState has changed due to anything outside
 595                  * this particular consumer. That includes other consumers in
 596                  * the same context, or local changes detected above.
 597                  */
 598                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 599                         si->si_cookieState->cs_age ) {
 600
 601                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 602                                 /* bogus, just dup everything */
 603                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 604                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 605                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 606                                                 si->si_cookieState->cs_vals, NULL );
 607                                         changed = 1;
 608                                         break;
 609                                 }
 610                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 611                                         if ( si->si_syncCookie.sids[i] !=
 612                                                 si->si_cookieState->cs_sids[j] )
 613                                                 continue;
 614                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 615                                                 &si->si_cookieState->cs_vals[j] ))
 616                                                 break;
 617                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 618                                                 &si->si_cookieState->cs_vals[j] );
 619                                         changed = 1;
 620                                         break;
 621                                 }
 622                         }
 623                         if ( changed ) {
 624                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 625                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 626                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 627                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 628                         }
 629                 }
 630                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 631         }
 632
 633         si->si_refreshDone = 0;
 634
 635         rc = ldap_sync_search( si, op->o_tmpmemctx );
 636
 637         if( rc != LDAP_SUCCESS ) {
 638                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 639                         "ldap_search_ext: %s (%d)\n",
 640                         si->si_ridtxt, ldap_err2string( rc ), rc );
 641         }
 642
 643 done:
 644         if ( rc ) {
 645                 if ( si->si_ld ) {
 646                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 647                         si->si_ld = NULL;
 648                 }
 649         }
 650
 651         return rc;
 652 }
 653
 654 static int
 655 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 656 {
 657         int i, j, match = 0;
 658         const char *text;
 659
 660         *which = 0;
 661
 662         if ( sc1->numcsns < sc2->numcsns ) {
 663                 *which = sc1->numcsns;
 664                 return -1;
 665         }
 666
 667         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 668                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 669                         if ( sc1->sids[i] != sc2->sids[j] )
 670                                 continue;
 671                         value_match( &match, slap_schema.si_ad_entryCSN,
 672                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 673                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 674                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 675                         if ( match < 0 ) {
 676                                 *which = j;
 677                                 return match;
 678                         }
 679                         break;
 680                 }
 681         }
 682         return match;
 683 }
 684
 685 static int
 686 do_syncrep2(
 687         Operation *op,
 688         syncinfo_t *si )
 689 {
 690         LDAPControl     **rctrls = NULL;
 691         LDAPControl     *rctrlp;
 692
 693         BerElementBuffer berbuf;
 694         BerElement      *ber = (BerElement *)&berbuf;
 695
 696         LDAPMessage     *res = NULL;
 697         LDAPMessage     *msg = NULL;
 698
 699         char            *retoid = NULL;
 700         struct berval   *retdata = NULL;
 701
 702         Entry           *entry = NULL;
 703
 704         int             syncstate;
 705         struct berval   syncUUID = BER_BVNULL;
 706         struct sync_cookie      syncCookie = { NULL };
 707         struct sync_cookie      syncCookie_req = { NULL };
 708         struct berval           cookie = BER_BVNULL;
 709
 710         int             rc,
 711                         err = LDAP_SUCCESS;
 712         ber_len_t       len;
 713
 714         struct berval   *psub;
 715         Modifications   *modlist = NULL;
 716
 717         int                             match, m;
 718
 719         struct timeval *tout_p = NULL;
 720         struct timeval tout = { 0, 0 };
 721
 722         int             refreshDeletes = 0;
 723         BerVarray syncUUIDs = NULL;
 724         ber_tag_t si_tag;
 725
 726         if ( slapd_shutdown ) {
 727                 rc = -2;
 728                 goto done;
 729         }
 730
 731         ber_init2( ber, NULL, LBER_USE_DER );
 732         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 733
 734         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 735
 736         psub = &si->si_be->be_nsuffix[0];
 737
 738         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 739
 740         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 741                 tout_p = &tout;
 742         } else {
 743                 tout_p = NULL;
 744         }
 745
 746         while ( ( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 747                 tout_p, &res ) ) > 0 )
 748         {
 749                 if ( slapd_shutdown ) {
 750                         rc = -2;
 751                         goto done;
 752                 }
 753                 for( msg = ldap_first_message( si->si_ld, res );
 754                         msg != NULL;
 755                         msg = ldap_next_message( si->si_ld, msg ) )
 756                 {
 757                         if ( slapd_shutdown ) {
 758                                 rc = -2;
 759                                 goto done;
 760                         }
 761                         switch( ldap_msgtype( msg ) ) {
 762                         case LDAP_RES_SEARCH_ENTRY:
 763                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 764                                 /* we can't work without the control */
 765                                 rctrlp = NULL;
 766                                 if ( rctrls ) {
 767                                         LDAPControl **next;
 768                                         /* NOTE: make sure we use the right one;
 769                                          * a better approach would be to run thru
 770                                          * the whole list and take care of all */
 771                                         rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 772                                         if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 773                                         {
 774                                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 775                                                         "got search entry with multiple "
 776                                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 777                                                 rc = -1;
 778                                                 goto done;
 779                                         }
 780                                 }
 781                                 if ( rctrlp == NULL ) {
 782                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 783                                                 "got search entry without "
 784                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 785                                         rc = -1;
 786                                         goto done;
 787                                 }
 788                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 789                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 790                                 /* FIXME: what if syncUUID is NULL or empty?
 791                                  * (happens with back-sql...) */
 792                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 793                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 794                                                 "got empty syncUUID with LDAP_SYNC_%s\n",
 795                                                 si->si_ridtxt,
 796                                                 syncrepl_state2str( syncstate ), 0 );
 797                                         ldap_controls_free( rctrls );
 798                                         rc = -1;
 799                                         goto done;
 800                                 }
 801                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 802                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 803
 804                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 805                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 806
 807                                         if ( !BER_BVISNULL( &cookie ) ) {
 808                                                 ch_free( syncCookie.octet_str.bv_val );
 809                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 810                                         }
 811                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 812                                         {
 813                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 814                                                 if ( syncCookie.ctxcsn ) {
 815                                                         int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 816                                                         for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 817                                                                 if ( si->si_cookieState->cs_sids[i] == sid &&
 818                                                                         ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 819                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 820                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 821                                                                         ldap_controls_free( rctrls );
 822                                                                         rc = 0;
 823                                                                         goto done;
 824                                                                 }
 825                                                         }
 826                                                 }
 827                                         }
 828                                 }
 829                                 rc = 0;
 830                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 831                                         modlist = NULL;
 832                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 833                                                 syncCookie.ctxcsn )
 834                                         {
 835                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 836                                         }
 837                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 838                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 839                                 {
 840                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 841                                                 syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 842                                                 syncCookie.ctxcsn )
 843                                         {
 844                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 845                                         }
 846                                 }
 847                                 ldap_controls_free( rctrls );
 848                                 if ( modlist ) {
 849                                         slap_mods_free( modlist, 1 );
 850                                 }
 851                                 if ( rc )
 852                                         goto done;
 853                                 break;
 854
 855                         case LDAP_RES_SEARCH_REFERENCE:
 856                                 Debug( LDAP_DEBUG_ANY,
 857                                         "do_syncrep2: %s reference received error\n",
 858                                         si->si_ridtxt, 0, 0 );
 859                                 break;
 860
 861                         case LDAP_RES_SEARCH_RESULT:
 862                                 Debug( LDAP_DEBUG_SYNC,
 863                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 864                                         si->si_ridtxt, 0, 0 );
 865                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 866                                         &rctrls, 0 );
 867 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 868                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 869                                         /* map old result code to registered code */
 870                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 871                                 }
 872 #endif
 873                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 874                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 875                                                 si->si_logstate = SYNCLOG_FALLBACK;
 876                                         }
 877                                         rc = err;
 878                                         goto done;
 879                                 }
 880                                 if ( rctrls ) {
 881                                         rctrlp = *rctrls;
 882                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 883
 884                                         ber_scanf( ber, "{" /*"}"*/);
 885                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 886                                                 ber_scanf( ber, "m", &cookie );
 887
 888                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 889                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 890
 891                                                 if ( !BER_BVISNULL( &cookie ) ) {
 892                                                         ch_free( syncCookie.octet_str.bv_val );
 893                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 894                                                 }
 895                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 896                                                 {
 897                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 898                                                 }
 899                                         }
 900                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 901                                         {
 902                                                 ber_scanf( ber, "b", &refreshDeletes );
 903                                         }
 904                                         ber_scanf( ber, /*"{"*/ "}" );
 905                                 }
 906                                 if ( !syncCookie.ctxcsn ) {
 907                                         match = 1;
 908                                 } else if ( !syncCookie_req.ctxcsn ) {
 909                                         match = -1;
 910                                         m = 0;
 911                                 } else {
 912                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 913                                 }
 914                                 if ( rctrls ) {
 915                                         ldap_controls_free( rctrls );
 916                                 }
 917                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 918                                         /* FIXME : different error behaviors according to
 919                                          *      1) err code : LDAP_BUSY ...
 920                                          *      2) on err policy : stop service, stop sync, retry
 921                                          */
 922                                         if ( refreshDeletes == 0 && match < 0 &&
 923                                                 err == LDAP_SUCCESS )
 924                                         {
 925                                                 syncrepl_del_nonpresent( op, si, NULL,
 926                                                         &syncCookie.ctxcsn[m] );
 927                                         } else {
 928                                                 avl_free( si->si_presentlist, ch_free );
 929                                                 si->si_presentlist = NULL;
 930                                         }
 931                                 }
 932                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 933                                 {
 934                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 935                                 }
 936                                 if ( err == LDAP_SUCCESS
 937                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 938                                         si->si_logstate = SYNCLOG_LOGGING;
 939                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 940                                 } else {
 941                                         rc = -2;
 942                                 }
 943                                 goto done;
 944                                 break;
 945
 946                         case LDAP_RES_INTERMEDIATE:
 947                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 948                                         &retoid, &retdata, NULL, 0 );
 949                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 950                                         ber_init2( ber, retdata, LBER_USE_DER );
 951
 952                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 953                                         ber_tag_t tag;
 954                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 955                                                 Debug( LDAP_DEBUG_SYNC,
 956                                                         "do_syncrep2: %s %s - %s\n",
 957                                                         si->si_ridtxt,
 958                                                         "LDAP_RES_INTERMEDIATE",
 959                                                         "NEW_COOKIE" );
 960                                                 ber_scanf( ber, "tm", &tag, &cookie );
 961                                                 break;
 962                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 963                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 964                                                 Debug( LDAP_DEBUG_SYNC,
 965                                                         "do_syncrep2: %s %s - %s\n",
 966                                                         si->si_ridtxt,
 967                                                         "LDAP_RES_INTERMEDIATE",
 968                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 969                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 970                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 971                                                         si->si_refreshDelete = 1;
 972                                                 } else {
 973                                                         si->si_refreshPresent = 1;
 974                                                 }
 975                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 976                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 977                                                 {
 978                                                         ber_scanf( ber, "m", &cookie );
 979
 980                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 981                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 982
 983                                                         if ( !BER_BVISNULL( &cookie ) ) {
 984                                                                 ch_free( syncCookie.octet_str.bv_val );
 985                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 986                                                         }
 987                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 988                                                         {
 989                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 990                                                         }
 991                                                 }
 992                                                 /* Defaults to TRUE */
 993                                                 if ( ber_peek_tag( ber, &len ) ==
 994                                                         LDAP_TAG_REFRESHDONE )
 995                                                 {
 996                                                         ber_scanf( ber, "b", &si->si_refreshDone );
 997                                                 } else
 998                                                 {
 999                                                         si->si_refreshDone = 1;
1000                                                 }
1001                                                 ber_scanf( ber, /*"{"*/ "}" );
1002                                                 break;
1003                                         case LDAP_TAG_SYNC_ID_SET:
1004                                                 Debug( LDAP_DEBUG_SYNC,
1005                                                         "do_syncrep2: %s %s - %s\n",
1006                                                         si->si_ridtxt,
1007                                                         "LDAP_RES_INTERMEDIATE",
1008                                                         "SYNC_ID_SET" );
1009                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
1010                                                 if ( ber_peek_tag( ber, &len ) ==
1011                                                         LDAP_TAG_SYNC_COOKIE )
1012                                                 {
1013                                                         ber_scanf( ber, "m", &cookie );
1014
1015                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1016                                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1017
1018                                                         if ( !BER_BVISNULL( &cookie ) ) {
1019                                                                 ch_free( syncCookie.octet_str.bv_val );
1020                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1021                                                         }
1022                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1023                                                         {
1024                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1025                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
1026                                                         }
1027                                                 }
1028                                                 if ( ber_peek_tag( ber, &len ) ==
1029                                                         LDAP_TAG_REFRESHDELETES )
1030                                                 {
1031                                                         ber_scanf( ber, "b", &refreshDeletes );
1032                                                 }
1033                                                 ber_scanf( ber, "[W]", &syncUUIDs );
1034                                                 ber_scanf( ber, /*"{"*/ "}" );
1035                                                 if ( refreshDeletes ) {
1036                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
1037                                                                 &syncCookie.ctxcsn[m] );
1038                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1039                                                 } else {
1040                                                         int i;
1041                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1042                                                                 (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1043                                                                 slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1044                                                         }
1045                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1046                                                 }
1047                                                 slap_sync_cookie_free( &syncCookie, 0 );
1048                                                 break;
1049                                         default:
1050                                                 Debug( LDAP_DEBUG_ANY,
1051                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1052                                                         si->si_ridtxt, (long) si_tag, 0 );
1053                                                 ldap_memfree( retoid );
1054                                                 ber_bvfree( retdata );
1055                                                 continue;
1056                                         }
1057
1058                                         if ( !syncCookie.ctxcsn ) {
1059                                                 match = 1;
1060                                         } else if ( !syncCookie_req.ctxcsn ) {
1061                                                 match = -1;
1062                                                 m = 0;
1063                                         } else {
1064                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1065                                         }
1066
1067                                         if ( match < 0 ) {
1068                                                 if ( si->si_refreshPresent == 1 ) {
1069                                                         syncrepl_del_nonpresent( op, si, NULL,
1070                                                                 &syncCookie.ctxcsn[m] );
1071                                                 }
1072
1073                                                 if ( syncCookie.ctxcsn )
1074                                                 {
1075                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1076                                                 }
1077                                         }
1078
1079                                         ldap_memfree( retoid );
1080                                         ber_bvfree( retdata );
1081                                         break;
1082
1083                                 } else {
1084                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1085                                                 "unknown intermediate response (%d)\n",
1086                                                 si->si_ridtxt, rc, 0 );
1087                                         ldap_memfree( retoid );
1088                                         ber_bvfree( retdata );
1089                                         break;
1090                                 }
1091                                 break;
1092
1093                         default:
1094                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1095                                         "unknown message (0x%02lx)\n",
1096                                         si->si_ridtxt,
1097                                         (unsigned long)ldap_msgtype( msg ), 0 );
1098                                 break;
1099
1100                         }
1101                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1102                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1103                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1104                                 slap_sync_cookie_free( &syncCookie, 0 );
1105                         }
1106                 }
1107                 ldap_msgfree( res );
1108                 res = NULL;
1109         }
1110
1111         if ( rc == -1 ) {
1112                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1113                 err = rc;
1114         }
1115
1116 done:
1117         if ( err != LDAP_SUCCESS ) {
1118                 Debug( LDAP_DEBUG_ANY,
1119                         "do_syncrep2: %s (%d) %s\n",
1120                         si->si_ridtxt, err, ldap_err2string( err ) );
1121         }
1122
1123         slap_sync_cookie_free( &syncCookie, 0 );
1124         slap_sync_cookie_free( &syncCookie_req, 0 );
1125
1126         if ( res ) ldap_msgfree( res );
1127
1128         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1129                 if ( si->si_conn ) {
1130                         connection_client_stop( si->si_conn );
1131                         si->si_conn = NULL;
1132                 }
1133                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1134                 si->si_ld = NULL;
1135         }
1136
1137         return rc;
1138 }
1139
1140 static void *
1141 do_syncrepl(
1142         void    *ctx,
1143         void    *arg )
1144 {
1145         struct re_s* rtask = arg;
1146         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1147         Connection conn = {0};
1148         OperationBuffer opbuf;
1149         Operation *op;
1150         int rc = LDAP_SUCCESS;
1151         int dostop = 0;
1152         ber_socket_t s;
1153         int i, defer = 1, fail = 0;
1154         Backend *be;
1155
1156         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1157
1158         if ( si == NULL )
1159                 return NULL;
1160
1161         /* Don't wait around if there's a previous session still running */
1162         if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex ))
1163                 return NULL;
1164
1165         switch( abs( si->si_type ) ) {
1166         case LDAP_SYNC_REFRESH_ONLY:
1167         case LDAP_SYNC_REFRESH_AND_PERSIST:
1168                 break;
1169         default:
1170                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1171                 return NULL;
1172         }
1173
1174         if ( slapd_shutdown ) {
1175                 if ( si->si_ld ) {
1176                         if ( si->si_conn ) {
1177                                 connection_client_stop( si->si_conn );
1178                                 si->si_conn = NULL;
1179                         }
1180                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1181                         si->si_ld = NULL;
1182                 }
1183                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1184                 return NULL;
1185         }
1186
1187         connection_fake_init( &conn, &opbuf, ctx );
1188         op = &opbuf.ob_op;
1189
1190         /* use global malloc for now */
1191         op->o_tmpmemctx = NULL;
1192         op->o_tmpmfuncs = &ch_mfuncs;
1193
1194         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1195         op->o_bd = be = si->si_be;
1196         op->o_dn = op->o_bd->be_rootdn;
1197         op->o_ndn = op->o_bd->be_rootndn;
1198         if ( !si->si_schemachecking )
1199                 op->o_no_schema_check = 1;
1200
1201         /* If we're glued, send writes through the glue parent */
1202         if ( !si->si_wbe ) {
1203                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1204                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1205                 } else {
1206                         si->si_wbe = be;
1207                 }
1208         }
1209
1210         /* Establish session, do search */
1211         if ( !si->si_ld ) {
1212                 si->si_refreshDelete = 0;
1213                 si->si_refreshPresent = 0;
1214                 rc = do_syncrep1( op, si );
1215         }
1216
1217 reload:
1218         /* Process results */
1219         if ( rc == LDAP_SUCCESS ) {
1220                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1221
1222                 rc = do_syncrep2( op, si );
1223                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1224                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1225                         goto reload;
1226                 }
1227
1228                 /* We got deleted while running on cn=config */
1229                 if ( !si->si_ctype ) {
1230                         if ( si->si_conn )
1231                                 dostop = 1;
1232                         rc = -1;
1233                 }
1234
1235                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1236                         /* If we succeeded, enable the connection for further listening.
1237                          * If we failed, tear down the connection and reschedule.
1238                          */
1239                         if ( rc == LDAP_SUCCESS ) {
1240                                 if ( si->si_conn ) {
1241                                         connection_client_enable( si->si_conn );
1242                                 } else {
1243                                         si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1244                                 }
1245                         } else if ( si->si_conn ) {
1246                                 dostop = 1;
1247                         }
1248                 } else {
1249                         if ( rc == -2 ) rc = 0;
1250                 }
1251         }
1252
1253         /* At this point, we have 4 cases:
1254          * 1) for any hard failure, give up and remove this task
1255          * 2) for ServerDown, reschedule this task to run
1256          * 3) for Refresh and Success, reschedule to run
1257          * 4) for Persist and Success, reschedule to defer
1258          */
1259         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1260
1261         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1262                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1263         }
1264
1265         if ( dostop ) {
1266                 connection_client_stop( si->si_conn );
1267                 si->si_conn = NULL;
1268         }
1269
1270         if ( rc == LDAP_SUCCESS ) {
1271                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1272                         defer = 0;
1273                 }
1274                 rtask->interval.tv_sec = si->si_interval;
1275                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1276                 if ( si->si_retrynum ) {
1277                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1278                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1279                         }
1280                         si->si_retrynum[i] = RETRYNUM_TAIL;
1281                 }
1282         } else {
1283                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1284                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1285                                 break;
1286                 }
1287
1288                 if ( !si->si_ctype
1289                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1290                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1291                         fail = RETRYNUM_TAIL;
1292                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1293                         if ( si->si_retrynum[i] > 0 )
1294                                 si->si_retrynum[i]--;
1295                         fail = si->si_retrynum[i];
1296                         rtask->interval.tv_sec = si->si_retryinterval[i];
1297                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1298                         slap_wake_listener();
1299                 }
1300         }
1301
1302         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1303         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1304
1305         if ( rc ) {
1306                 if ( fail == RETRYNUM_TAIL ) {
1307                         Debug( LDAP_DEBUG_ANY,
1308                                 "do_syncrepl: %s quitting\n",
1309                                 si->si_ridtxt, 0, 0 );
1310                 } else if ( fail > 0 ) {
1311                         Debug( LDAP_DEBUG_ANY,
1312                                 "do_syncrepl: %s retrying (%d retries left)\n",
1313                                 si->si_ridtxt, fail, 0 );
1314                 } else {
1315                         Debug( LDAP_DEBUG_ANY,
1316                                 "do_syncrepl: %s retrying\n",
1317                                 si->si_ridtxt, 0, 0 );
1318                 }
1319         }
1320
1321         /* Do final delete cleanup */
1322         if ( !si->si_ctype ) {
1323                 cookie_state *cs = NULL;
1324                 syncinfo_t **sip;
1325
1326                 cs = be->be_syncinfo->si_cookieState;
1327                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1328                 *sip = si->si_next;
1329                 syncinfo_free( si, 0 );
1330                 if ( !be->be_syncinfo ) {
1331                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1332                         if ( cs ) {
1333                                 ch_free( cs->cs_sids );
1334                                 ber_bvarray_free( cs->cs_vals );
1335                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1336                                 ch_free( cs );
1337                         }
1338                 }
1339         }
1340         return NULL;
1341 }
1342
1343 static slap_verbmasks modops[] = {
1344         { BER_BVC("add"), LDAP_REQ_ADD },
1345         { BER_BVC("delete"), LDAP_REQ_DELETE },
1346         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1347         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1348         { BER_BVNULL, 0 }
1349 };
1350
1351 static Modifications *
1352 syncrepl_accesslog_mods(
1353         syncinfo_t *si,
1354         struct berval *vals
1355 )
1356 {
1357         char *colon;
1358         const char *text;
1359         AttributeDescription *ad;
1360         struct berval bv, bv2;
1361         short op;
1362         Modifications *mod = NULL, *modlist = NULL, **modtail;
1363         int i;
1364
1365         modtail = &modlist;
1366
1367         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1368                 ad = NULL;
1369                 bv = vals[i];
1370
1371                 colon = ber_bvchr( &bv, ':' );
1372                 if ( !colon ) {
1373                         /* Invalid */
1374                         continue;
1375                 }
1376
1377                 bv.bv_len = colon - bv.bv_val;
1378                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1379                         /* Invalid */
1380                         continue;
1381                 }
1382
1383                 /* Ignore dynamically generated attrs */
1384                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1385                         continue;
1386                 }
1387
1388                 /* Ignore excluded attrs */
1389                 if ( ldap_charray_inlist( si->si_exattrs,
1390                         ad->ad_type->sat_cname.bv_val ) )
1391                 {
1392                         continue;
1393                 }
1394
1395                 switch(colon[1]) {
1396                 case '+':       op = LDAP_MOD_ADD; break;
1397                 case '-':       op = LDAP_MOD_DELETE; break;
1398                 case '=':       op = LDAP_MOD_REPLACE; break;
1399                 case '#':       op = LDAP_MOD_INCREMENT; break;
1400                 default:        continue;
1401                 }
1402
1403                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1404                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1405                         mod->sml_flags = 0;
1406                         mod->sml_op = op;
1407                         mod->sml_next = NULL;
1408                         mod->sml_desc = ad;
1409                         mod->sml_type = ad->ad_cname;
1410                         mod->sml_values = NULL;
1411                         mod->sml_nvalues = NULL;
1412                         mod->sml_numvals = 0;
1413
1414                         *modtail = mod;
1415                         modtail = &mod->sml_next;
1416                 }
1417                 if ( colon[2] == ' ' ) {
1418                         bv.bv_val = colon + 3;
1419                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1420                         ber_dupbv( &bv2, &bv );
1421                         ber_bvarray_add( &mod->sml_values, &bv2 );
1422                         mod->sml_numvals++;
1423                 }
1424         }
1425         return modlist;
1426 }
1427
1428 static Modifications *
1429 syncrepl_changelog_mods(
1430         syncinfo_t *si,
1431         struct berval *vals
1432 )
1433 {
1434         return NULL;    /* FIXME */
1435 }
1436
1437 static int
1438 syncrepl_message_to_op(
1439         syncinfo_t      *si,
1440         Operation       *op,
1441         LDAPMessage     *msg
1442 )
1443 {
1444         BerElement      *ber = NULL;
1445         Modifications   *modlist = NULL;
1446         logschema *ls;
1447         SlapReply rs = { REP_RESULT };
1448         slap_callback cb = { NULL, null_callback, NULL, NULL };
1449
1450         const char      *text;
1451         char txtbuf[SLAP_TEXT_BUFLEN];
1452         size_t textlen = sizeof txtbuf;
1453
1454         struct berval   bdn, dn = BER_BVNULL, ndn;
1455         struct berval   bv, *bvals = NULL;
1456         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1457                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1458                 psup = BER_BVNULL, nsup = BER_BVNULL;
1459         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1460
1461         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1462                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1463                         "Message type should be entry (%d)",
1464                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1465                 return -1;
1466         }
1467
1468         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1469                 ls = &accesslog_sc;
1470         else
1471                 ls = &changelog_sc;
1472
1473         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1474
1475         if ( rc != LDAP_SUCCESS ) {
1476                 Debug( LDAP_DEBUG_ANY,
1477                         "syncrepl_message_to_op: %s dn get failed (%d)",
1478                         si->si_ridtxt, rc, 0 );
1479                 return rc;
1480         }
1481
1482         op->o_tag = LBER_DEFAULT;
1483         op->o_bd = si->si_wbe;
1484
1485         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1486                 == LDAP_SUCCESS ) {
1487                 if ( bv.bv_val == NULL )
1488                         break;
1489
1490                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1491                         bdn = bvals[0];
1492                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1493                         ber_dupbv( &op->o_req_dn, &dn );
1494                         ber_dupbv( &op->o_req_ndn, &ndn );
1495                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1496                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1497                         freeReqDn = 1;
1498                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1499                         int i = verb_to_mask( bvals[0].bv_val, modops );
1500                         if ( i < 0 ) {
1501                                 Debug( LDAP_DEBUG_ANY,
1502                                         "syncrepl_message_to_op: %s unknown op %s",
1503                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1504                                 ch_free( bvals );
1505                                 rc = -1;
1506                                 goto done;
1507                         }
1508                         op->o_tag = modops[i].mask;
1509                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1510                         /* Parse attribute into modlist */
1511                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1512                                 modlist = syncrepl_accesslog_mods( si, bvals );
1513                         } else {
1514                                 modlist = syncrepl_changelog_mods( si, bvals );
1515                         }
1516                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1517                         rdn = bvals[0];
1518                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1519                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1520                                 deleteOldRdn = 1;
1521                         }
1522                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1523                         sup = bvals[0];
1524                 } else if ( !ber_bvstrcasecmp( &bv,
1525                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1526                 {
1527                         slap_queue_csn( op, bvals );
1528                 }
1529                 ch_free( bvals );
1530         }
1531
1532         /* If we didn't get a mod type or a target DN, bail out */
1533         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1534                 rc = -1;
1535                 goto done;
1536         }
1537
1538         op->o_callback = &cb;
1539         slap_op_time( &op->o_time, &op->o_tincr );
1540
1541         switch( op->o_tag ) {
1542         case LDAP_REQ_ADD:
1543         case LDAP_REQ_MODIFY:
1544                 /* If we didn't get required data, bail */
1545                 if ( !modlist ) goto done;
1546
1547                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1548
1549                 if ( rc != LDAP_SUCCESS ) {
1550                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1551                                 "mods check (%s)\n",
1552                                 si->si_ridtxt, text, 0 );
1553                         goto done;
1554                 }
1555
1556                 if ( op->o_tag == LDAP_REQ_ADD ) {
1557                         Entry *e = entry_alloc();
1558                         op->ora_e = e;
1559                         op->ora_e->e_name = op->o_req_dn;
1560                         op->ora_e->e_nname = op->o_req_ndn;
1561                         freeReqDn = 0;
1562                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1563                         if( rc != LDAP_SUCCESS ) {
1564                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1565                                 "mods2entry (%s)\n",
1566                                         si->si_ridtxt, text, 0 );
1567                         } else {
1568                                 rc = op->o_bd->be_add( op, &rs );
1569                                 Debug( LDAP_DEBUG_SYNC,
1570                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1571                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1572                         }
1573                         if ( e == op->ora_e )
1574                                 be_entry_release_w( op, op->ora_e );
1575                 } else {
1576                         op->orm_modlist = modlist;
1577                         op->o_bd = si->si_wbe;
1578                         rc = op->o_bd->be_modify( op, &rs );
1579                         modlist = op->orm_modlist;
1580                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1581                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1582                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1583                         op->o_bd = si->si_be;
1584                 }
1585                 break;
1586         case LDAP_REQ_MODRDN:
1587                 if ( BER_BVISNULL( &rdn ) ) goto done;
1588
1589                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1590                         goto done;
1591                 }
1592                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1593                         goto done;
1594                 }
1595                 if ( !BER_BVISNULL( &sup ) ) {
1596                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1597                                 goto done;
1598                         }
1599                         op->orr_newSup = &psup;
1600                         op->orr_nnewSup = &nsup;
1601                 } else {
1602                         op->orr_newSup = NULL;
1603                         op->orr_nnewSup = NULL;
1604                 }
1605                 op->orr_newrdn = prdn;
1606                 op->orr_nnewrdn = nrdn;
1607                 op->orr_deleteoldrdn = deleteOldRdn;
1608                 op->orr_modlist = NULL;
1609                 if ( slap_modrdn2mods( op, &rs ) ) {
1610                         goto done;
1611                 }
1612
1613                 /* Append modlist for operational attrs */
1614                 {
1615                         Modifications *m;
1616
1617                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1618                                 ;
1619                         m->sml_next = modlist;
1620                         modlist = NULL;
1621                 }
1622                 rc = op->o_bd->be_modrdn( op, &rs );
1623                 slap_mods_free( op->orr_modlist, 1 );
1624                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1625                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1626                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1627                 break;
1628         case LDAP_REQ_DELETE:
1629                 rc = op->o_bd->be_delete( op, &rs );
1630                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1631                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1632                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1633                 break;
1634         }
1635 done:
1636         slap_graduate_commit_csn( op );
1637         op->o_bd = si->si_be;
1638         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1639         BER_BVZERO( &op->o_csn );
1640         if ( modlist ) {
1641                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1642         }
1643         if ( !BER_BVISNULL( &rdn ) ) {
1644                 if ( !BER_BVISNULL( &nsup ) ) {
1645                         ch_free( nsup.bv_val );
1646                 }
1647                 if ( !BER_BVISNULL( &psup ) ) {
1648                         ch_free( psup.bv_val );
1649                 }
1650                 if ( !BER_BVISNULL( &nrdn ) ) {
1651                         ch_free( nrdn.bv_val );
1652                 }
1653                 if ( !BER_BVISNULL( &prdn ) ) {
1654                         ch_free( prdn.bv_val );
1655                 }
1656         }
1657         if ( freeReqDn ) {
1658                 ch_free( op->o_req_ndn.bv_val );
1659                 ch_free( op->o_req_dn.bv_val );
1660         }
1661         ber_free( ber, 0 );
1662         return rc;
1663 }
1664
1665 static int
1666 syncrepl_message_to_entry(
1667         syncinfo_t      *si,
1668         Operation       *op,
1669         LDAPMessage     *msg,
1670         Modifications   **modlist,
1671         Entry                   **entry,
1672         int             syncstate
1673 )
1674 {
1675         Entry           *e = NULL;
1676         BerElement      *ber = NULL;
1677         Modifications   tmp;
1678         Modifications   *mod;
1679         Modifications   **modtail = modlist;
1680
1681         const char      *text;
1682         char txtbuf[SLAP_TEXT_BUFLEN];
1683         size_t textlen = sizeof txtbuf;
1684
1685         struct berval   bdn = BER_BVNULL, dn, ndn;
1686         int             rc, is_ctx;
1687
1688         *modlist = NULL;
1689
1690         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1691                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1692                         "Message type should be entry (%d)",
1693                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1694                 return -1;
1695         }
1696
1697         op->o_tag = LDAP_REQ_ADD;
1698
1699         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1700         if ( rc != LDAP_SUCCESS ) {
1701                 Debug( LDAP_DEBUG_ANY,
1702                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1703                         si->si_ridtxt, rc, 0 );
1704                 return rc;
1705         }
1706
1707         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1708                 /* NOTE: this could be done even before decoding the DN,
1709                  * although encoding errors wouldn't be detected */
1710                 rc = LDAP_SUCCESS;
1711                 goto done;
1712         }
1713
1714         if ( entry == NULL ) {
1715                 return -1;
1716         }
1717
1718         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1719         ber_dupbv( &op->o_req_dn, &dn );
1720         ber_dupbv( &op->o_req_ndn, &ndn );
1721         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1722         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1723
1724         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1725
1726         e = entry_alloc();
1727         e->e_name = op->o_req_dn;
1728         e->e_nname = op->o_req_ndn;
1729
1730         while ( ber_remaining( ber ) ) {
1731                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1732                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1733                 {
1734                         break;
1735                 }
1736
1737                 /* Drop all updates to the contextCSN of the context entry
1738                  * (ITS#4622, etc.)
1739                  */
1740                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1741                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1742                         ber_bvarray_free( tmp.sml_values );
1743                         continue;
1744                 }
1745
1746                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1747
1748                 mod->sml_op = LDAP_MOD_REPLACE;
1749                 mod->sml_flags = 0;
1750                 mod->sml_next = NULL;
1751                 mod->sml_desc = NULL;
1752                 mod->sml_type = tmp.sml_type;
1753                 mod->sml_values = tmp.sml_values;
1754                 mod->sml_nvalues = NULL;
1755                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1756
1757                 *modtail = mod;
1758                 modtail = &mod->sml_next;
1759         }
1760
1761         if ( *modlist == NULL ) {
1762                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1763                         si->si_ridtxt, 0, 0 );
1764                 rc = -1;
1765                 goto done;
1766         }
1767
1768         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1769
1770         if ( rc != LDAP_SUCCESS ) {
1771                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1772                         si->si_ridtxt, text, 0 );
1773                 goto done;
1774         }
1775
1776         /* Strip out dynamically generated attrs */
1777         for ( modtail = modlist; *modtail ; ) {
1778                 mod = *modtail;
1779                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1780                         *modtail = mod->sml_next;
1781                         slap_mod_free( &mod->sml_mod, 0 );
1782                         ch_free( mod );
1783                 } else {
1784                         modtail = &mod->sml_next;
1785                 }
1786         }
1787
1788         /* Strip out attrs in exattrs list */
1789         for ( modtail = modlist; *modtail ; ) {
1790                 mod = *modtail;
1791                 if ( ldap_charray_inlist( si->si_exattrs,
1792                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1793                 {
1794                         *modtail = mod->sml_next;
1795                         slap_mod_free( &mod->sml_mod, 0 );
1796                         ch_free( mod );
1797                 } else {
1798                         modtail = &mod->sml_next;
1799                 }
1800         }
1801
1802         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1803         if( rc != LDAP_SUCCESS ) {
1804                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1805                         si->si_ridtxt, text, 0 );
1806         }
1807
1808 done:
1809         ber_free( ber, 0 );
1810         if ( rc != LDAP_SUCCESS ) {
1811                 if ( e ) {
1812                         entry_free( e );
1813                         e = NULL;
1814                 }
1815         }
1816         if ( entry )
1817                 *entry = e;
1818
1819         return rc;
1820 }
1821
1822 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1823
1824 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1825  * entry if a previous refresh was interrupted before sending us a new
1826  * context state. We try to compare the new entry to the existing entry
1827  * and ignore the new entry if they are the same.
1828  *
1829  * Also, we may get an update where the entryDN has changed, due to
1830  * a ModDn on the provider. We detect this as well, so we can issue
1831  * the corresponding operation locally.
1832  *
1833  * In the case of a modify, we get a list of all the attributes
1834  * in the original entry. Rather than deleting the entry and re-adding it,
1835  * we issue a Modify request that deletes all the attributes and adds all
1836  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1837  * entry.
1838  *
1839  * We otherwise distinguish ModDN from Modify; in the case of
1840  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1841  * operational attributes from the entry, and do a regular ModDN.
1842  */
1843 typedef struct dninfo {
1844         Entry *new_entry;
1845         struct berval dn;
1846         struct berval ndn;
1847         int renamed;    /* Was an existing entry renamed? */
1848         int delOldRDN;  /* Was old RDN deleted? */
1849         Modifications **modlist;        /* the modlist we received */
1850         Modifications *mods;    /* the modlist we compared */
1851 } dninfo;
1852
1853 /* return 1 if inserted, 0 otherwise */
1854 static int
1855 avl_presentlist_insert(
1856         syncinfo_t* si,
1857         struct berval *syncUUID )
1858 {
1859         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1860
1861         syncuuid_bv->bv_len = syncUUID->bv_len;
1862         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1863         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1864         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1865
1866         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1867                 syncuuid_cmp, avl_dup_error ) )
1868         {
1869                 ch_free( syncuuid_bv );
1870                 return 0;
1871         }
1872
1873         return 1;
1874 }
1875
1876 static int
1877 syncrepl_entry(
1878         syncinfo_t* si,
1879         Operation *op,
1880         Entry* entry,
1881         Modifications** modlist,
1882         int syncstate,
1883         struct berval* syncUUID,
1884         struct berval* syncCSN )
1885 {
1886         Backend *be = op->o_bd;
1887         slap_callback   cb = { NULL, NULL, NULL, NULL };
1888         int syncuuid_inserted = 0;
1889         struct berval   syncUUID_strrep = BER_BVNULL;
1890
1891         SlapReply       rs_search = {REP_RESULT};
1892         SlapReply       rs_delete = {REP_RESULT};
1893         SlapReply       rs_add = {REP_RESULT};
1894         SlapReply       rs_modify = {REP_RESULT};
1895         Filter f = {0};
1896         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1897         int rc = LDAP_SUCCESS;
1898
1899         struct berval pdn = BER_BVNULL;
1900         dninfo dni = {0};
1901         int     retry = 1;
1902         int     freecsn = 1;
1903
1904         Debug( LDAP_DEBUG_SYNC,
1905                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1906                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1907
1908         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1909                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1910                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1911                 }
1912         }
1913
1914         if ( syncstate == LDAP_SYNC_PRESENT ) {
1915                 return 0;
1916         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1917                 if ( entry == NULL ) {
1918                         return 0;
1919                 }
1920         }
1921
1922         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1923         if ( syncstate != LDAP_SYNC_DELETE ) {
1924                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1925
1926                 if ( a == NULL ) {
1927                         /* add if missing */
1928                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1929                                 &syncUUID_strrep, syncUUID );
1930
1931                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1932                         /* replace only if necessary */
1933                         if ( a->a_nvals != a->a_vals ) {
1934                                 ber_memfree( a->a_nvals[0].bv_val );
1935                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1936                         }
1937                         ber_memfree( a->a_vals[0].bv_val );
1938                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1939                 }
1940         }
1941
1942         f.f_choice = LDAP_FILTER_EQUALITY;
1943         f.f_ava = &ava;
1944         ava.aa_desc = slap_schema.si_ad_entryUUID;
1945         ava.aa_value = *syncUUID;
1946
1947         if ( syncuuid_inserted ) {
1948                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1949                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1950         }
1951         op->ors_filter = &f;
1952
1953         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1954         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1955                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1956         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1957         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1958                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1959         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1960         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1961
1962         op->o_tag = LDAP_REQ_SEARCH;
1963         op->ors_scope = LDAP_SCOPE_SUBTREE;
1964         op->ors_deref = LDAP_DEREF_NEVER;
1965
1966         /* get the entry for this UUID */
1967         op->o_req_dn = si->si_base;
1968         op->o_req_ndn = si->si_base;
1969
1970         op->o_time = slap_get_time();
1971         op->ors_tlimit = SLAP_NO_LIMIT;
1972         op->ors_slimit = 1;
1973
1974         op->ors_attrs = slap_anlist_all_attributes;
1975         op->ors_attrsonly = 0;
1976
1977         /* set callback function */
1978         op->o_callback = &cb;
1979         cb.sc_response = dn_callback;
1980         cb.sc_private = &dni;
1981         dni.new_entry = entry;
1982         dni.modlist = modlist;
1983
1984         if ( limits_check( op, &rs_search ) == 0 ) {
1985                 rc = be->be_search( op, &rs_search );
1986                 Debug( LDAP_DEBUG_SYNC,
1987                                 "syncrepl_entry: %s be_search (%d)\n",
1988                                 si->si_ridtxt, rc, 0 );
1989         }
1990
1991         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1992                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1993         }
1994
1995         cb.sc_response = null_callback;
1996         cb.sc_private = si;
1997
1998         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1999                 Debug( LDAP_DEBUG_SYNC,
2000                                 "syncrepl_entry: %s %s\n",
2001                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2002         } else {
2003                 Debug( LDAP_DEBUG_SYNC,
2004                                 "syncrepl_entry: %s %s\n",
2005                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2006         }
2007
2008         assert( BER_BVISNULL( &op->o_csn ) );
2009         if ( syncCSN ) {
2010                 slap_queue_csn( op, syncCSN );
2011         }
2012
2013         slap_op_time( &op->o_time, &op->o_tincr );
2014         switch ( syncstate ) {
2015         case LDAP_SYNC_ADD:
2016         case LDAP_SYNC_MODIFY:
2017                 if ( BER_BVISNULL( &op->o_csn ))
2018                 {
2019
2020                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2021                         if ( a ) {
2022                                 /* FIXME: op->o_csn is assumed to be
2023                                  * on the thread's slab; this needs
2024                                  * to be cleared ASAP.
2025                                  * What happens if already present?
2026                                  */
2027                                 assert( BER_BVISNULL( &op->o_csn ) );
2028                                 op->o_csn = a->a_vals[0];
2029                                 freecsn = 0;
2030                         }
2031                 }
2032 retry_add:;
2033                 if ( BER_BVISNULL( &dni.dn ) ) {
2034
2035                         op->o_req_dn = entry->e_name;
2036                         op->o_req_ndn = entry->e_nname;
2037                         op->o_tag = LDAP_REQ_ADD;
2038                         op->ora_e = entry;
2039                         op->o_bd = si->si_wbe;
2040
2041                         rc = op->o_bd->be_add( op, &rs_add );
2042                         Debug( LDAP_DEBUG_SYNC,
2043                                         "syncrepl_entry: %s be_add (%d)\n",
2044                                         si->si_ridtxt, rc, 0 );
2045                         switch ( rs_add.sr_err ) {
2046                         case LDAP_SUCCESS:
2047                                 if ( op->ora_e == entry ) {
2048                                         be_entry_release_w( op, entry );
2049                                 }
2050                                 entry = NULL;
2051                                 break;
2052
2053                         case LDAP_REFERRAL:
2054                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2055                          * only if the suffix entry is not present */
2056                         case LDAP_NO_SUCH_OBJECT:
2057                                 rc = syncrepl_add_glue( op, entry );
2058                                 entry = NULL;
2059                                 break;
2060
2061                         /* if an entry was added via syncrepl_add_glue(),
2062                          * it likely has no entryUUID, so the previous
2063                          * be_search() doesn't find it.  In this case,
2064                          * give syncrepl a chance to modify it. Also
2065                          * allow for entries that were recreated with the
2066                          * same DN but a different entryUUID.
2067                          */
2068                         case LDAP_ALREADY_EXISTS:
2069                                 if ( retry ) {
2070                                         Operation       op2 = *op;
2071                                         SlapReply       rs2 = { 0 };
2072                                         slap_callback   cb2 = { 0 };
2073
2074                                         op2.o_bd = be;
2075                                         op2.o_tag = LDAP_REQ_SEARCH;
2076                                         op2.o_req_dn = entry->e_name;
2077                                         op2.o_req_ndn = entry->e_nname;
2078                                         op2.ors_scope = LDAP_SCOPE_BASE;
2079                                         op2.ors_deref = LDAP_DEREF_NEVER;
2080                                         op2.ors_attrs = slap_anlist_all_attributes;
2081                                         op2.ors_attrsonly = 0;
2082                                         op2.ors_limit = NULL;
2083                                         op2.ors_slimit = 1;
2084                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2085
2086                                         f.f_choice = LDAP_FILTER_PRESENT;
2087                                         f.f_desc = slap_schema.si_ad_objectClass;
2088                                         op2.ors_filter = &f;
2089                                         op2.ors_filterstr = generic_filterstr;
2090
2091                                         op2.o_callback = &cb2;
2092                                         cb2.sc_response = dn_callback;
2093                                         cb2.sc_private = &dni;
2094
2095                                         rc = be->be_search( &op2, &rs2 );
2096                                         if ( rc ) goto done;
2097
2098                                         retry = 0;
2099                                         slap_op_time( &op->o_time, &op->o_tincr );
2100                                         goto retry_add;
2101                                 }
2102                                 /* FALLTHRU */
2103
2104                         default:
2105                                 Debug( LDAP_DEBUG_ANY,
2106                                         "syncrepl_entry: %s be_add failed (%d)\n",
2107                                         si->si_ridtxt, rs_add.sr_err, 0 );
2108                                 break;
2109                         }
2110                         op->o_bd = be;
2111                         goto done;
2112                 }
2113                 /* FALLTHRU */
2114                 op->o_req_dn = dni.dn;
2115                 op->o_req_ndn = dni.ndn;
2116                 if ( dni.renamed ) {
2117                         struct berval noldp, newp, nnewp;
2118
2119                         op->o_tag = LDAP_REQ_MODRDN;
2120                         dnRdn( &entry->e_name, &op->orr_newrdn );
2121                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2122
2123                         dnParent( &dni.ndn, &noldp );
2124                         dnParent( &entry->e_nname, &nnewp );
2125                         if ( !dn_match( &noldp, &nnewp ) ) {
2126                                 dnParent( &entry->e_name, &newp );
2127                                 op->orr_newSup = &newp;
2128                                 op->orr_nnewSup = &nnewp;
2129                         } else {
2130                                 op->orr_newSup = NULL;
2131                                 op->orr_nnewSup = NULL;
2132                         }
2133                         op->orr_deleteoldrdn = dni.delOldRDN;
2134                         op->orr_modlist = NULL;
2135                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2136                                 goto done;
2137                         }
2138
2139                         /* RDNs must be NUL-terminated for back-ldap */
2140                         noldp = op->orr_newrdn;
2141                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2142                         noldp = op->orr_nnewrdn;
2143                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2144
2145                         /* Setup opattrs too */
2146                         {
2147                                 static AttributeDescription *nullattr = NULL;
2148                                 static AttributeDescription **const opattrs[] = {
2149                                         &slap_schema.si_ad_entryCSN,
2150                                         &slap_schema.si_ad_modifiersName,
2151                                         &slap_schema.si_ad_modifyTimestamp,
2152                                         &nullattr
2153                                 };
2154                                 AttributeDescription *opattr;
2155                                 Modifications *mod, **modtail, **ml;
2156                                 int i;
2157
2158                                 for ( mod = op->orr_modlist;
2159                                         mod->sml_next;
2160                                         mod = mod->sml_next )
2161                                         ;
2162                                 modtail = &mod->sml_next;
2163
2164                                 /* pull mod off incoming modlist, append to orr_modlist */
2165                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2166                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2167                                         {
2168                                                 if ( (*ml)->sml_desc == opattr ) {
2169                                                         mod = *ml;
2170                                                         *ml = mod->sml_next;
2171                                                         mod->sml_next = NULL;
2172                                                         *modtail = mod;
2173                                                         modtail = &mod->sml_next;
2174                                                         break;
2175                                                 }
2176                                         }
2177                                 }
2178                         }
2179                         op->o_bd = si->si_wbe;
2180                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2181                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2182                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2183
2184                         slap_mods_free( op->orr_modlist, 1 );
2185                         Debug( LDAP_DEBUG_SYNC,
2186                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2187                                         si->si_ridtxt, rc, 0 );
2188                         op->o_bd = be;
2189                         goto done;
2190                 }
2191                 if ( dni.mods ) {
2192                         op->o_tag = LDAP_REQ_MODIFY;
2193                         op->orm_modlist = dni.mods;
2194                         op->orm_no_opattrs = 1;
2195                         op->o_bd = si->si_wbe;
2196
2197                         rc = op->o_bd->be_modify( op, &rs_modify );
2198                         slap_mods_free( op->orm_modlist, 1 );
2199                         op->orm_no_opattrs = 0;
2200                         Debug( LDAP_DEBUG_SYNC,
2201                                         "syncrepl_entry: %s be_modify (%d)\n",
2202                                         si->si_ridtxt, rc, 0 );
2203                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2204                                 Debug( LDAP_DEBUG_ANY,
2205                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2206                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2207                         }
2208                         op->o_bd = be;
2209                 } else {
2210                         Debug( LDAP_DEBUG_SYNC,
2211                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2212                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2213                 }
2214                 goto done;
2215         case LDAP_SYNC_DELETE :
2216                 if ( !BER_BVISNULL( &dni.dn ) ) {
2217                         op->o_req_dn = dni.dn;
2218                         op->o_req_ndn = dni.ndn;
2219                         op->o_tag = LDAP_REQ_DELETE;
2220                         op->o_bd = si->si_wbe;
2221                         rc = op->o_bd->be_delete( op, &rs_delete );
2222                         Debug( LDAP_DEBUG_SYNC,
2223                                         "syncrepl_entry: %s be_delete (%d)\n",
2224                                         si->si_ridtxt, rc, 0 );
2225
2226                         while ( rs_delete.sr_err == LDAP_SUCCESS
2227                                 && op->o_delete_glue_parent ) {
2228                                 op->o_delete_glue_parent = 0;
2229                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2230                                         slap_callback cb = { NULL };
2231                                         cb.sc_response = slap_null_cb;
2232                                         dnParent( &op->o_req_ndn, &pdn );
2233                                         op->o_req_dn = pdn;
2234                                         op->o_req_ndn = pdn;
2235                                         op->o_callback = &cb;
2236                                         op->o_bd->be_delete( op, &rs_delete );
2237                                 } else {
2238                                         break;
2239                                 }
2240                         }
2241                         op->o_bd = be;
2242                 }
2243                 goto done;
2244
2245         default :
2246                 Debug( LDAP_DEBUG_ANY,
2247                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2248                 goto done;
2249         }
2250
2251 done:
2252         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2253                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2254                 BER_BVZERO( &syncUUID_strrep );
2255         }
2256         if ( !BER_BVISNULL( &dni.ndn ) ) {
2257                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2258         }
2259         if ( !BER_BVISNULL( &dni.dn ) ) {
2260                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2261         }
2262         if ( entry ) {
2263                 entry_free( entry );
2264         }
2265         if ( syncCSN ) {
2266                 slap_graduate_commit_csn( op );
2267         }
2268         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2269                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2270         }
2271         BER_BVZERO( &op->o_csn );
2272         return rc;
2273 }
2274
2275 static struct berval gcbva[] = {
2276         BER_BVC("top"),
2277         BER_BVC("glue"),
2278         BER_BVNULL
2279 };
2280
2281 #define NP_DELETE_ONE   2
2282
2283 static void
2284 syncrepl_del_nonpresent(
2285         Operation *op,
2286         syncinfo_t *si,
2287         BerVarray uuids,
2288         struct berval *cookiecsn )
2289 {
2290         Backend* be = op->o_bd;
2291         slap_callback   cb = { NULL };
2292         SlapReply       rs_search = {REP_RESULT};
2293         SlapReply       rs_delete = {REP_RESULT};
2294         SlapReply       rs_modify = {REP_RESULT};
2295         struct nonpresent_entry *np_list, *np_prev;
2296         int rc;
2297         AttributeName   an[2];
2298
2299         struct berval pdn = BER_BVNULL;
2300         struct berval csn;
2301
2302         op->o_req_dn = si->si_base;
2303         op->o_req_ndn = si->si_base;
2304
2305         cb.sc_response = nonpresent_callback;
2306         cb.sc_private = si;
2307
2308         op->o_callback = &cb;
2309         op->o_tag = LDAP_REQ_SEARCH;
2310         op->ors_scope = si->si_scope;
2311         op->ors_deref = LDAP_DEREF_NEVER;
2312         op->o_time = slap_get_time();
2313         op->ors_tlimit = SLAP_NO_LIMIT;
2314
2315
2316         if ( uuids ) {
2317                 Filter uf;
2318                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2319                 int i;
2320
2321                 op->ors_attrsonly = 1;
2322                 op->ors_attrs = slap_anlist_no_attrs;
2323                 op->ors_limit = NULL;
2324                 op->ors_filter = &uf;
2325
2326                 uf.f_ava = &eq;
2327                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2328                 uf.f_next = NULL;
2329                 uf.f_choice = LDAP_FILTER_EQUALITY;
2330                 si->si_refreshDelete |= NP_DELETE_ONE;
2331
2332                 for (i=0; uuids[i].bv_val; i++) {
2333                         op->ors_slimit = 1;
2334                         uf.f_av_value = uuids[i];
2335                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2336                         rc = be->be_search( op, &rs_search );
2337                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2338                 }
2339                 si->si_refreshDelete ^= NP_DELETE_ONE;
2340         } else {
2341                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2342                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2343                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2344                 op->ors_attrs = an;
2345                 op->ors_slimit = SLAP_NO_LIMIT;
2346                 op->ors_attrsonly = 0;
2347                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2348                 op->ors_filterstr = si->si_filterstr;
2349                 op->o_nocaching = 1;
2350
2351                 if ( limits_check( op, &rs_search ) == 0 ) {
2352                         rc = be->be_search( op, &rs_search );
2353                 }
2354                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2355         }
2356
2357         op->o_nocaching = 0;
2358
2359         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2360
2361                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2362                         csn = *cookiecsn;
2363                 } else {
2364                         csn = si->si_syncCookie.ctxcsn[0];
2365                 }
2366
2367                 op->o_bd = si->si_wbe;
2368                 slap_queue_csn( op, &csn );
2369
2370                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2371                 while ( np_list != NULL ) {
2372                         LDAP_LIST_REMOVE( np_list, npe_link );
2373                         np_prev = np_list;
2374                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2375                         op->o_tag = LDAP_REQ_DELETE;
2376                         op->o_callback = &cb;
2377                         cb.sc_response = null_callback;
2378                         cb.sc_private = si;
2379                         op->o_req_dn = *np_prev->npe_name;
2380                         op->o_req_ndn = *np_prev->npe_nname;
2381                         rc = op->o_bd->be_delete( op, &rs_delete );
2382                         Debug( LDAP_DEBUG_SYNC,
2383                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2384                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2385
2386                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2387                                 Modifications mod1, mod2;
2388                                 mod1.sml_op = LDAP_MOD_REPLACE;
2389                                 mod1.sml_flags = 0;
2390                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2391                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2392                                 mod1.sml_numvals = 2;
2393                                 mod1.sml_values = &gcbva[0];
2394                                 mod1.sml_nvalues = NULL;
2395                                 mod1.sml_next = &mod2;
2396
2397                                 mod2.sml_op = LDAP_MOD_REPLACE;
2398                                 mod2.sml_flags = 0;
2399                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2400                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2401                                 mod2.sml_numvals = 1;
2402                                 mod2.sml_values = &gcbva[1];
2403                                 mod2.sml_nvalues = NULL;
2404                                 mod2.sml_next = NULL;
2405
2406                                 op->o_tag = LDAP_REQ_MODIFY;
2407                                 op->orm_modlist = &mod1;
2408
2409                                 rc = op->o_bd->be_modify( op, &rs_modify );
2410                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2411                         }
2412
2413                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2414                                         op->o_delete_glue_parent ) {
2415                                 op->o_delete_glue_parent = 0;
2416                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2417                                         slap_callback cb = { NULL };
2418                                         cb.sc_response = slap_null_cb;
2419                                         dnParent( &op->o_req_ndn, &pdn );
2420                                         op->o_req_dn = pdn;
2421                                         op->o_req_ndn = pdn;
2422                                         op->o_callback = &cb;
2423                                         /* give it a root privil ? */
2424                                         op->o_bd->be_delete( op, &rs_delete );
2425                                 } else {
2426                                         break;
2427                                 }
2428                         }
2429
2430                         op->o_delete_glue_parent = 0;
2431
2432                         ber_bvfree( np_prev->npe_name );
2433                         ber_bvfree( np_prev->npe_nname );
2434                         ch_free( np_prev );
2435
2436                         if ( slapd_shutdown ) {
2437                                 break;
2438                         }
2439                 }
2440
2441                 slap_graduate_commit_csn( op );
2442                 op->o_bd = be;
2443
2444                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2445                 BER_BVZERO( &op->o_csn );
2446         }
2447
2448         return;
2449 }
2450
2451 int
2452 syncrepl_add_glue(
2453         Operation* op,
2454         Entry *e )
2455 {
2456         Backend *be = op->o_bd;
2457         slap_callback cb = { NULL };
2458         Attribute       *a;
2459         int     rc;
2460         int suffrdns;
2461         int i;
2462         struct berval dn = BER_BVNULL;
2463         struct berval ndn = BER_BVNULL;
2464         Entry   *glue;
2465         SlapReply       rs_add = {REP_RESULT};
2466         struct berval   ptr, nptr;
2467         char            *comma;
2468
2469         op->o_tag = LDAP_REQ_ADD;
2470         op->o_callback = &cb;
2471         cb.sc_response = null_callback;
2472         cb.sc_private = NULL;
2473
2474         dn = e->e_name;
2475         ndn = e->e_nname;
2476
2477         /* count RDNs in suffix */
2478         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2479                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2480                         comma++;
2481                         ptr.bv_len -= comma - ptr.bv_val;
2482                         ptr.bv_val = comma;
2483                         i++;
2484                 }
2485                 suffrdns = i;
2486         } else {
2487                 /* suffix is "" */
2488                 suffrdns = 0;
2489         }
2490
2491         /* Start with BE suffix */
2492         ptr = dn;
2493         for ( i = 0; i < suffrdns; i++ ) {
2494                 comma = ber_bvrchr( &ptr, ',' );
2495                 if ( comma != NULL ) {
2496                         ptr.bv_len = comma - ptr.bv_val;
2497                 } else {
2498                         ptr.bv_len = 0;
2499                         break;
2500                 }
2501         }
2502
2503         if ( !BER_BVISEMPTY( &ptr ) ) {
2504                 dn.bv_len -= ptr.bv_len + 1;
2505                 dn.bv_val += ptr.bv_len + 1;
2506         }
2507
2508         /* the normalizedDNs are always the same length, no counting
2509          * required.
2510          */
2511         nptr = ndn;
2512         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2513                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2514                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2515
2516                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2517
2518         } else {
2519                 nptr.bv_len = 0;
2520         }
2521
2522         while ( ndn.bv_val > e->e_nname.bv_val ) {
2523                 glue = entry_alloc();
2524                 ber_dupbv( &glue->e_name, &dn );
2525                 ber_dupbv( &glue->e_nname, &ndn );
2526
2527                 a = attr_alloc( slap_schema.si_ad_objectClass );
2528
2529                 a->a_numvals = 2;
2530                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2531                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2532                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2533                 ber_dupbv( &a->a_vals[2], &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                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2541
2542                 a->a_numvals = 1;
2543                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2544                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2545                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2546
2547                 a->a_nvals = a->a_vals;
2548
2549                 a->a_next = glue->e_attrs;
2550                 glue->e_attrs = a;
2551
2552                 op->o_req_dn = glue->e_name;
2553                 op->o_req_ndn = glue->e_nname;
2554                 op->ora_e = glue;
2555                 rc = be->be_add ( op, &rs_add );
2556                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2557                         if ( op->ora_e == glue )
2558                                 be_entry_release_w( op, glue );
2559                 } else {
2560                 /* incl. ALREADY EXIST */
2561                         entry_free( glue );
2562                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2563                                 entry_free( e );
2564                                 return rc;
2565                         }
2566                 }
2567
2568                 /* Move to next child */
2569                 comma = ber_bvrchr( &ptr, ',' );
2570                 if ( comma == NULL ) {
2571                         break;
2572                 }
2573                 ptr.bv_len = comma - ptr.bv_val;
2574
2575                 dn.bv_val = ++comma;
2576                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2577
2578                 comma = ber_bvrchr( &nptr, ',' );
2579                 assert( comma != NULL );
2580                 nptr.bv_len = comma - nptr.bv_val;
2581
2582                 ndn.bv_val = ++comma;
2583                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2584         }
2585
2586         op->o_req_dn = e->e_name;
2587         op->o_req_ndn = e->e_nname;
2588         op->ora_e = e;
2589         rc = be->be_add ( op, &rs_add );
2590         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2591                 if ( op->ora_e == e )
2592                         be_entry_release_w( op, e );
2593         } else {
2594                 entry_free( e );
2595         }
2596
2597         return rc;
2598 }
2599
2600 static int
2601 syncrepl_updateCookie(
2602         syncinfo_t *si,
2603         Operation *op,
2604         struct berval *pdn,
2605         struct sync_cookie *syncCookie )
2606 {
2607         Backend *be = op->o_bd;
2608         Modifications mod[2];
2609         struct berval first = BER_BVNULL;
2610
2611         int rc, i, j, len;
2612
2613         slap_callback cb = { NULL };
2614         SlapReply       rs_modify = {REP_RESULT};
2615
2616         mod[0].sml_op = LDAP_MOD_DELETE;
2617         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2618         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2619         mod[0].sml_values = NULL;
2620         mod[0].sml_nvalues = NULL;
2621         mod[0].sml_numvals = 0;
2622         mod[0].sml_next = &mod[1];
2623
2624         mod[1].sml_op = LDAP_MOD_ADD;
2625         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2626         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2627         mod[1].sml_values = NULL;
2628         mod[1].sml_nvalues = NULL;
2629         mod[1].sml_numvals = 0;
2630         mod[1].sml_next = NULL;
2631
2632         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2633
2634         for ( i=0; i<syncCookie->numcsns; i++ ) {
2635                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2636                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2637                                 continue;
2638                         len = syncCookie->ctxcsn[i].bv_len;
2639                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2640                                 len = si->si_cookieState->cs_vals[j].bv_len;
2641                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2642                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2643                                 ber_bvarray_add_x( &mod[0].sml_values,
2644                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2645                                 mod[0].sml_numvals++;
2646                                 ber_bvarray_add_x( &mod[1].sml_values,
2647                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2648                                 mod[1].sml_numvals++;
2649                                 if ( BER_BVISNULL( &first ))
2650                                         first = syncCookie->ctxcsn[i];
2651                         }
2652                         break;
2653                 }
2654                 /* there was no match for this SID, it's a new CSN */
2655                 if ( j == si->si_cookieState->cs_num ) {
2656                         ber_bvarray_add_x( &mod[1].sml_values,
2657                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2658                         mod[1].sml_numvals++;
2659                         if ( BER_BVISNULL( &first ))
2660                                 first = syncCookie->ctxcsn[i];
2661                 }
2662         }
2663         /* Should never happen, ITS#5065 */
2664         if ( BER_BVISNULL( &first )) {
2665                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2666                 return 0;
2667         }
2668         op->o_bd = si->si_wbe;
2669         slap_queue_csn( op, &first );
2670
2671         op->o_tag = LDAP_REQ_MODIFY;
2672
2673         cb.sc_response = null_callback;
2674         cb.sc_private = si;
2675
2676         op->o_callback = &cb;
2677         op->o_req_dn = op->o_bd->be_suffix[0];
2678         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2679
2680         /* update contextCSN */
2681         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2682
2683         if ( mod[0].sml_values )
2684                 op->orm_modlist = mod;
2685         else
2686                 op->orm_modlist = &mod[1];
2687
2688         op->orm_no_opattrs = 1;
2689         rc = op->o_bd->be_modify( op, &rs_modify );
2690         op->orm_no_opattrs = 0;
2691         op->o_msgid = 0;
2692
2693         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2694                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2695                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2696                 /* If we replaced any old values */
2697                 if ( mod[0].sml_values ) {
2698                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2699                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2700                                         if ( mod[0].sml_values[i].bv_val !=
2701                                                 si->si_cookieState->cs_vals[j].bv_val )
2702                                                 continue;
2703                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2704                                                 &mod[1].sml_values[i] );
2705                                         break;
2706                                 }
2707                         }
2708                 } else {
2709                         /* Else we just added */
2710                         si->si_cookieState->cs_num += syncCookie->numcsns;
2711                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2712                         free( si->si_cookieState->cs_sids );
2713                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2714                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2715                 }
2716
2717                 si->si_cookieState->cs_age++;
2718                 si->si_cookieAge = si->si_cookieState->cs_age;
2719         } else {
2720                 Debug( LDAP_DEBUG_ANY,
2721                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2722                         si->si_ridtxt, rs_modify.sr_err, 0 );
2723         }
2724         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2725
2726         op->o_bd = be;
2727         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2728         BER_BVZERO( &op->o_csn );
2729         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2730         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2731         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2732
2733         return rc;
2734 }
2735
2736 static void
2737 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2738         Modifications ***mret, Modifications ***mcur )
2739 {
2740         int i, j;
2741         Modifications *mod, **modtail;
2742
2743         modtail = *mret;
2744
2745         if ( old ) {
2746                 int n, o, nn, no;
2747                 struct berval **adds, **dels;
2748                 /* count old and new */
2749                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2750                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2751
2752                 /* there MUST be both old and new values */
2753                 assert( o != 0 );
2754                 assert( n != 0 );
2755                 j = 0;
2756
2757                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2758                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2759
2760                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2761                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2762
2763                 nn = n; no = o;
2764
2765                 for ( i=0; i<o; i++ ) {
2766                         for ( j=0; j<n; j++ ) {
2767                                 if ( !adds[j] )
2768                                         continue;
2769                                 if ( bvmatch( dels[i], adds[j] ) ) {
2770                                         no--;
2771                                         nn--;
2772                                         adds[j] = NULL;
2773                                         dels[i] = NULL;
2774                                         break;
2775                                 }
2776                         }
2777                 }
2778
2779                 i = j;
2780                 /* all old values were deleted, just use the replace op */
2781                 if ( no == o ) {
2782                         i = j-1;
2783                 } else if ( no ) {
2784                 /* delete some values */
2785                         mod = ch_malloc( sizeof( Modifications ) );
2786                         mod->sml_op = LDAP_MOD_DELETE;
2787                         mod->sml_flags = 0;
2788                         mod->sml_desc = old->a_desc;
2789                         mod->sml_type = mod->sml_desc->ad_cname;
2790                         mod->sml_numvals = no;
2791                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2792                         if ( old->a_vals != old->a_nvals ) {
2793                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2794                         } else {
2795                                 mod->sml_nvalues = NULL;
2796                         }
2797                         j = 0;
2798                         for ( i = 0; i < o; i++ ) {
2799                                 if ( !dels[i] ) continue;
2800                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2801                                 if ( mod->sml_nvalues ) {
2802                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2803                                 }
2804                                 j++;
2805                         }
2806                         BER_BVZERO( &mod->sml_values[j] );
2807                         if ( mod->sml_nvalues ) {
2808                                 BER_BVZERO( &mod->sml_nvalues[j] );
2809                         }
2810                         *modtail = mod;
2811                         modtail = &mod->sml_next;
2812                         i = j;
2813                 }
2814                 op->o_tmpfree( dels, op->o_tmpmemctx );
2815                 /* some values were added */
2816                 if ( nn && no < o ) {
2817                         mod = ch_malloc( sizeof( Modifications ) );
2818                         mod->sml_op = LDAP_MOD_ADD;
2819                         mod->sml_flags = 0;
2820                         mod->sml_desc = old->a_desc;
2821                         mod->sml_type = mod->sml_desc->ad_cname;
2822                         mod->sml_numvals = nn;
2823                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2824                         if ( old->a_vals != old->a_nvals ) {
2825                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2826                         } else {
2827                                 mod->sml_nvalues = NULL;
2828                         }
2829                         j = 0;
2830                         for ( i = 0; i < n; i++ ) {
2831                                 if ( !adds[i] ) continue;
2832                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2833                                 if ( mod->sml_nvalues ) {
2834                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2835                                 }
2836                                 j++;
2837                         }
2838                         BER_BVZERO( &mod->sml_values[j] );
2839                         if ( mod->sml_nvalues ) {
2840                                 BER_BVZERO( &mod->sml_nvalues[j] );
2841                         }
2842                         *modtail = mod;
2843                         modtail = &mod->sml_next;
2844                         i = j;
2845                 }
2846                 op->o_tmpfree( adds, op->o_tmpmemctx );
2847         } else {
2848                 /* new attr, just use the new mod */
2849                 i = 0;
2850                 j = 1;
2851         }
2852         /* advance to next element */
2853         mod = **mcur;
2854         if ( mod ) {
2855                 if ( i != j ) {
2856                         **mcur = mod->sml_next;
2857                         *modtail = mod;
2858                         modtail = &mod->sml_next;
2859                 } else {
2860                         *mcur = &mod->sml_next;
2861                 }
2862         }
2863         *mret = modtail;
2864 }
2865
2866 static int
2867 dn_callback(
2868         Operation*      op,
2869         SlapReply*      rs )
2870 {
2871         dninfo *dni = op->o_callback->sc_private;
2872
2873         if ( rs->sr_type == REP_SEARCH ) {
2874                 if ( !BER_BVISNULL( &dni->dn ) ) {
2875                         Debug( LDAP_DEBUG_ANY,
2876                                 "dn_callback : consistency error - "
2877                                 "entryUUID is not unique\n", 0, 0, 0 );
2878                 } else {
2879                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2880                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2881                         /* If there is a new entry, see if it differs from the old.
2882                          * We compare the non-normalized values so that cosmetic changes
2883                          * in the provider are always propagated.
2884                          */
2885                         if ( dni->new_entry ) {
2886                                 Modifications **modtail, **ml;
2887                                 Attribute *old, *new;
2888                                 int is_ctx;
2889
2890                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2891                                         &op->o_bd->be_nsuffix[0] );
2892
2893                                 /* Did the DN change?
2894                                  */
2895                                 if ( !dn_match( &rs->sr_entry->e_name,
2896                                                 &dni->new_entry->e_name ) )
2897                                 {
2898                                         struct berval oldRDN, oldVal;
2899                                         AttributeDescription *ad = NULL;
2900                                         Attribute *a;
2901
2902                                         dni->renamed = 1;
2903                                         /* See if the oldRDN was deleted */
2904                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2905                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2906                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2907                                                 oldRDN.bv_val );
2908                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2909                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2910                                         a = attr_find( dni->new_entry->e_attrs, ad );
2911                                         if ( !a || attr_valfind( a,
2912                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2913                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2914                                                 SLAP_MR_VALUE_OF_SYNTAX,
2915                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
2916                                         {
2917                                                 dni->delOldRDN = 1;
2918                                         }
2919                                         /* OK, this was just a modDN, we're done */
2920                                         return LDAP_SUCCESS;
2921                                 }
2922
2923                                 modtail = &dni->mods;
2924                                 ml = dni->modlist;
2925
2926                                 /* Make sure new entry is actually newer than old entry */
2927                                 old = attr_find( rs->sr_entry->e_attrs,
2928                                         slap_schema.si_ad_entryCSN );
2929                                 new = attr_find( dni->new_entry->e_attrs,
2930                                         slap_schema.si_ad_entryCSN );
2931                                 if ( new && old ) {
2932                                         int rc, len = old->a_vals[0].bv_len;
2933                                         if ( len > new->a_vals[0].bv_len )
2934                                                 len = new->a_vals[0].bv_len;
2935                                         rc = memcmp( old->a_vals[0].bv_val,
2936                                                 new->a_vals[0].bv_val, len );
2937                                         if ( rc > 0 ) {
2938                                                 Debug( LDAP_DEBUG_SYNC,
2939                                                         "dn_callback : new entry is older than ours "
2940                                                         "%s ours %s, new %s\n",
2941                                                         rs->sr_entry->e_name.bv_val,
2942                                                         old->a_vals[0].bv_val,
2943                                                         new->a_vals[0].bv_val );
2944                                                 return LDAP_SUCCESS;
2945                                         } else if ( rc == 0 ) {
2946                                                 Debug( LDAP_DEBUG_SYNC,
2947                                                         "dn_callback : entries have identical CSN "
2948                                                         "%s %s\n",
2949                                                         rs->sr_entry->e_name.bv_val,
2950                                                         old->a_vals[0].bv_val, 0 );
2951                                                 return LDAP_SUCCESS;
2952                                         }
2953                                 }
2954
2955                                 /* We assume that attributes are saved in the same order
2956                                  * in the remote and local databases. So if we walk through
2957                                  * the attributeDescriptions one by one they should match in
2958                                  * lock step. If not, look for an add or delete.
2959                                  */
2960                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2961                                                 old && new; )
2962                                 {
2963                                         /* If we've seen this before, use its mod now */
2964                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2965                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2966                                                 new = new->a_next;
2967                                                 continue;
2968                                         }
2969                                         /* Skip contextCSN */
2970                                         if ( is_ctx && old->a_desc ==
2971                                                 slap_schema.si_ad_contextCSN ) {
2972                                                 old = old->a_next;
2973                                                 continue;
2974                                         }
2975
2976                                         if ( old->a_desc != new->a_desc ) {
2977                                                 Modifications *mod;
2978                                                 Attribute *tmp;
2979
2980                                                 /* If it's just been re-added later,
2981                                                  * remember that we've seen it.
2982                                                  */
2983                                                 tmp = attr_find( new, old->a_desc );
2984                                                 if ( tmp ) {
2985                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2986                                                 } else {
2987                                                         /* If it's a new attribute, pull it in.
2988                                                          */
2989                                                         tmp = attr_find( old, new->a_desc );
2990                                                         if ( !tmp ) {
2991                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2992                                                                 new = new->a_next;
2993                                                                 continue;
2994                                                         }
2995                                                         /* Delete old attr */
2996                                                         mod = ch_malloc( sizeof( Modifications ) );
2997                                                         mod->sml_op = LDAP_MOD_DELETE;
2998                                                         mod->sml_flags = 0;
2999                                                         mod->sml_desc = old->a_desc;
3000                                                         mod->sml_type = mod->sml_desc->ad_cname;
3001                                                         mod->sml_numvals = 0;
3002                                                         mod->sml_values = NULL;
3003                                                         mod->sml_nvalues = NULL;
3004                                                         *modtail = mod;
3005                                                         modtail = &mod->sml_next;
3006                                                 }
3007                                                 old = old->a_next;
3008                                                 continue;
3009                                         }
3010                                         /* kludge - always update modifiersName so that it
3011                                          * stays co-located with the other mod opattrs. But only
3012                                          * if we know there are other valid mods.
3013                                          */
3014                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3015                                                 dni->mods )
3016                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3017                                         else
3018                                                 attr_cmp( op, old, new, &modtail, &ml );
3019                                         new = new->a_next;
3020                                         old = old->a_next;
3021                                 }
3022                                 *modtail = *ml;
3023                                 *ml = NULL;
3024                         }
3025                 }
3026         } else if ( rs->sr_type == REP_RESULT ) {
3027                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3028                         Debug( LDAP_DEBUG_ANY,
3029                                 "dn_callback : consistency error - "
3030                                 "entryUUID is not unique\n", 0, 0, 0 );
3031                 }
3032         }
3033
3034         return LDAP_SUCCESS;
3035 }
3036
3037 static int
3038 nonpresent_callback(
3039         Operation*      op,
3040         SlapReply*      rs )
3041 {
3042         syncinfo_t *si = op->o_callback->sc_private;
3043         Attribute *a;
3044         int count = 0;
3045         struct berval* present_uuid = NULL;
3046         struct nonpresent_entry *np_entry;
3047
3048         if ( rs->sr_type == REP_RESULT ) {
3049                 count = avl_free( si->si_presentlist, ch_free );
3050                 si->si_presentlist = NULL;
3051
3052         } else if ( rs->sr_type == REP_SEARCH ) {
3053                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3054                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3055
3056                         if ( a ) {
3057                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3058                                         syncuuid_cmp );
3059                         }
3060
3061                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3062                                 char buf[sizeof("rid=999 not")];
3063
3064                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3065                                         present_uuid ? "got" : "not" );
3066
3067                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3068                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3069                         }
3070
3071                         if ( a == NULL ) return 0;
3072                 }
3073
3074                 if ( present_uuid == NULL ) {
3075                         np_entry = (struct nonpresent_entry *)
3076                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3077                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3078                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3079                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3080
3081                 } else {
3082                         avl_delete( &si->si_presentlist,
3083                                 &a->a_nvals[0], syncuuid_cmp );
3084                         ch_free( present_uuid );
3085                 }
3086         }
3087         return LDAP_SUCCESS;
3088 }
3089
3090 static int
3091 null_callback(
3092         Operation*      op,
3093         SlapReply*      rs )
3094 {
3095         if ( rs->sr_err != LDAP_SUCCESS &&
3096                 rs->sr_err != LDAP_REFERRAL &&
3097                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3098                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3099                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3100         {
3101                 Debug( LDAP_DEBUG_ANY,
3102                         "null_callback : error code 0x%x\n",
3103                         rs->sr_err, 0, 0 );
3104         }
3105         return LDAP_SUCCESS;
3106 }
3107
3108 static struct berval *
3109 slap_uuidstr_from_normalized(
3110         struct berval* uuidstr,
3111         struct berval* normalized,
3112         void *ctx )
3113 {
3114 #if 0
3115         struct berval *new;
3116         unsigned char nibble;
3117         int i, d = 0;
3118
3119         if ( normalized == NULL ) return NULL;
3120         if ( normalized->bv_len != 16 ) return NULL;
3121
3122         if ( uuidstr ) {
3123                 new = uuidstr;
3124         } else {
3125                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3126                 if ( new == NULL ) {
3127                         return NULL;
3128                 }
3129         }
3130
3131         new->bv_len = 36;
3132
3133         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3134                 if ( new != uuidstr ) {
3135                         slap_sl_free( new, ctx );
3136                 }
3137                 return NULL;
3138         }
3139
3140         for ( i = 0; i < 16; i++ ) {
3141                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3142                         new->bv_val[(i<<1)+d] = '-';
3143                         d += 1;
3144                 }
3145
3146                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3147                 if ( nibble < 10 ) {
3148                         new->bv_val[(i<<1)+d] = nibble + '0';
3149                 } else {
3150                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3151                 }
3152
3153                 nibble = (normalized->bv_val[i]) & 0xF;
3154                 if ( nibble < 10 ) {
3155                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3156                 } else {
3157                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3158                 }
3159         }
3160
3161         new->bv_val[new->bv_len] = '\0';
3162         return new;
3163 #endif
3164
3165         struct berval   *new;
3166         int             rc = 0;
3167
3168         if ( normalized == NULL ) return NULL;
3169         if ( normalized->bv_len != 16 ) return NULL;
3170
3171         if ( uuidstr ) {
3172                 new = uuidstr;
3173
3174         } else {
3175                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3176                 if ( new == NULL ) {
3177                         return NULL;
3178                 }
3179         }
3180
3181         new->bv_len = 36;
3182
3183         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3184                 rc = 1;
3185                 goto done;
3186         }
3187
3188         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3189                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3190
3191 done:;
3192         if ( rc == -1 ) {
3193                 if ( new != NULL ) {
3194                         if ( new->bv_val != NULL ) {
3195                                 slap_sl_free( new->bv_val, ctx );
3196                         }
3197
3198                         if ( new != uuidstr ) {
3199                                 slap_sl_free( new, ctx );
3200                         }
3201                 }
3202                 new = NULL;
3203
3204         } else {
3205                 new->bv_len = rc;
3206         }
3207
3208         return new;
3209 }
3210
3211 static int
3212 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3213 {
3214         const struct berval *uuid1 = v_uuid1;
3215         const struct berval *uuid2 = v_uuid2;
3216         int rc = uuid1->bv_len - uuid2->bv_len;
3217         if ( rc ) return rc;
3218         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3219 }
3220
3221 void
3222 syncinfo_free( syncinfo_t *sie, int free_all )
3223 {
3224         syncinfo_t *si_next;
3225
3226         if ( free_all && sie->si_cookieState ) {
3227                 ch_free( sie->si_cookieState->cs_sids );
3228                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3229                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3230                 ch_free( sie->si_cookieState );
3231         }
3232         do {
3233                 si_next = sie->si_next;
3234
3235                 if ( sie->si_ld ) {
3236                         if ( sie->si_conn ) {
3237                                 connection_client_stop( sie->si_conn );
3238                                 sie->si_conn = NULL;
3239                         }
3240                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3241                 }
3242
3243                 /* re-fetch it, in case it was already removed */
3244                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3245                 if ( sie->si_re ) {
3246                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3247                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3248                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3249                 }
3250
3251                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3252
3253                 bindconf_free( &sie->si_bindconf );
3254
3255                 if ( sie->si_filterstr.bv_val ) {
3256                         ch_free( sie->si_filterstr.bv_val );
3257                 }
3258                 if ( sie->si_logfilterstr.bv_val ) {
3259                         ch_free( sie->si_logfilterstr.bv_val );
3260                 }
3261                 if ( sie->si_base.bv_val ) {
3262                         ch_free( sie->si_base.bv_val );
3263                 }
3264                 if ( sie->si_logbase.bv_val ) {
3265                         ch_free( sie->si_logbase.bv_val );
3266                 }
3267                 if ( sie->si_attrs ) {
3268                         int i = 0;
3269                         while ( sie->si_attrs[i] != NULL ) {
3270                                 ch_free( sie->si_attrs[i] );
3271                                 i++;
3272                         }
3273                         ch_free( sie->si_attrs );
3274                 }
3275                 if ( sie->si_exattrs ) {
3276                         int i = 0;
3277                         while ( sie->si_exattrs[i] != NULL ) {
3278                                 ch_free( sie->si_exattrs[i] );
3279                                 i++;
3280                         }
3281                         ch_free( sie->si_exattrs );
3282                 }
3283                 if ( sie->si_anlist ) {
3284                         int i = 0;
3285                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3286                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3287                                 i++;
3288                         }
3289                         ch_free( sie->si_anlist );
3290                 }
3291                 if ( sie->si_exanlist ) {
3292                         int i = 0;
3293                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3294                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3295                                 i++;
3296                         }
3297                         ch_free( sie->si_exanlist );
3298                 }
3299                 if ( sie->si_retryinterval ) {
3300                         ch_free( sie->si_retryinterval );
3301                 }
3302                 if ( sie->si_retrynum ) {
3303                         ch_free( sie->si_retrynum );
3304                 }
3305                 if ( sie->si_retrynum_init ) {
3306                         ch_free( sie->si_retrynum_init );
3307                 }
3308                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3309                 if ( sie->si_presentlist ) {
3310                     avl_free( sie->si_presentlist, ch_free );
3311                 }
3312                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3313                         struct nonpresent_entry* npe;
3314                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3315                         LDAP_LIST_REMOVE( npe, npe_link );
3316                         if ( npe->npe_name ) {
3317                                 if ( npe->npe_name->bv_val ) {
3318                                         ch_free( npe->npe_name->bv_val );
3319                                 }
3320                                 ch_free( npe->npe_name );
3321                         }
3322                         if ( npe->npe_nname ) {
3323                                 if ( npe->npe_nname->bv_val ) {
3324                                         ch_free( npe->npe_nname->bv_val );
3325                                 }
3326                                 ch_free( npe->npe_nname );
3327                         }
3328                         ch_free( npe );
3329                 }
3330                 ch_free( sie );
3331                 sie = si_next;
3332         } while ( free_all && si_next );
3333 }
3334
3335
3336
3337 /* NOTE: used & documented in slapd.conf(5) */
3338 #define IDSTR                   "rid"
3339 #define PROVIDERSTR             "provider"
3340 #define SCHEMASTR               "schemachecking"
3341 #define FILTERSTR               "filter"
3342 #define SEARCHBASESTR           "searchbase"
3343 #define SCOPESTR                "scope"
3344 #define ATTRSONLYSTR            "attrsonly"
3345 #define ATTRSSTR                "attrs"
3346 #define TYPESTR                 "type"
3347 #define INTERVALSTR             "interval"
3348 #define RETRYSTR                "retry"
3349 #define SLIMITSTR               "sizelimit"
3350 #define TLIMITSTR               "timelimit"
3351 #define SYNCDATASTR             "syncdata"
3352 #define LOGBASESTR              "logbase"
3353 #define LOGFILTERSTR    "logfilter"
3354
3355 /* FIXME: undocumented */
3356 #define EXATTRSSTR              "exattrs"
3357 #define MANAGEDSAITSTR          "manageDSAit"
3358
3359 /* mandatory */
3360 #define GOT_ID                  0x0001
3361 #define GOT_PROVIDER    0x0002
3362 #define GOT_BASE                0x0004
3363
3364 /* check */
3365 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3366
3367 static struct {
3368         struct berval key;
3369         int val;
3370 } scopes[] = {
3371         { BER_BVC("base"), LDAP_SCOPE_BASE },
3372         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3373         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3374         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3375         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3376         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3377         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3378         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3379         { BER_BVNULL, 0 }
3380 };
3381
3382 static slap_verbmasks datamodes[] = {
3383         { BER_BVC("default"), SYNCDATA_DEFAULT },
3384         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3385         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3386         { BER_BVNULL, 0 }
3387 };
3388
3389 static int
3390 parse_syncrepl_line(
3391         ConfigArgs      *c,
3392         syncinfo_t      *si )
3393 {
3394         int     gots = 0;
3395         int     i;
3396         char    *val;
3397
3398         for ( i = 1; i < c->argc; i++ ) {
3399                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3400                                         STRLENOF( IDSTR "=" ) ) )
3401                 {
3402                         int tmp;
3403                         /* '\0' string terminator accounts for '=' */
3404                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3405                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3406                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3407                                         "Error: parse_syncrepl_line: "
3408                                         "unable to parse syncrepl id \"%s\"", val );
3409                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3410                                 return -1;
3411                         }
3412                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3413                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3414                                         "Error: parse_syncrepl_line: "
3415                                         "syncrepl id %d is out of range [0..4095]", tmp );
3416                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3417                                 return -1;
3418                         }
3419                         si->si_rid = tmp;
3420                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3421                         gots |= GOT_ID;
3422                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3423                                         STRLENOF( PROVIDERSTR "=" ) ) )
3424                 {
3425                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3426                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3427                         gots |= GOT_PROVIDER;
3428                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3429                                         STRLENOF( SCHEMASTR "=" ) ) )
3430                 {
3431                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3432                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3433                                 si->si_schemachecking = 1;
3434                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3435                                 si->si_schemachecking = 0;
3436                         } else {
3437                                 si->si_schemachecking = 1;
3438                         }
3439                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3440                                         STRLENOF( FILTERSTR "=" ) ) )
3441                 {
3442                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3443                         if ( si->si_filterstr.bv_val )
3444                                 ch_free( si->si_filterstr.bv_val );
3445                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3446                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3447                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3448                 {
3449                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3450                         if ( si->si_logfilterstr.bv_val )
3451                                 ch_free( si->si_logfilterstr.bv_val );
3452                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3453                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3454                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3455                 {
3456                         struct berval   bv;
3457                         int             rc;
3458
3459                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3460                         if ( si->si_base.bv_val ) {
3461                                 ch_free( si->si_base.bv_val );
3462                         }
3463                         ber_str2bv( val, 0, 0, &bv );
3464                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3465                         if ( rc != LDAP_SUCCESS ) {
3466                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3467                                         "Invalid base DN \"%s\": %d (%s)",
3468                                         val, rc, ldap_err2string( rc ) );
3469                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3470                                 return -1;
3471                         }
3472                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3473                                 ch_free( si->si_base.bv_val );
3474                                 BER_BVZERO( &si->si_base );
3475                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3476                                         "Base DN \"%s\" is not within the database naming context",
3477                                         val );
3478                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3479                                 return -1;
3480                         }
3481                         gots |= GOT_BASE;
3482                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3483                                         STRLENOF( LOGBASESTR "=" ) ) )
3484                 {
3485                         struct berval   bv;
3486                         int             rc;
3487
3488                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3489                         if ( si->si_logbase.bv_val ) {
3490                                 ch_free( si->si_logbase.bv_val );
3491                         }
3492                         ber_str2bv( val, 0, 0, &bv );
3493                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3494                         if ( rc != LDAP_SUCCESS ) {
3495                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3496                                         "Invalid logbase DN \"%s\": %d (%s)",
3497                                         val, rc, ldap_err2string( rc ) );
3498                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3499                                 return -1;
3500                         }
3501                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3502                                         STRLENOF( SCOPESTR "=" ) ) )
3503                 {
3504                         int j;
3505                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3506                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3507                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3508                                         si->si_scope = scopes[j].val;
3509                                         break;
3510                                 }
3511                         }
3512                         if ( BER_BVISNULL(&scopes[j].key) ) {
3513                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3514                                         "Error: parse_syncrepl_line: "
3515                                         "unknown scope \"%s\"", val);
3516                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3517                                 return -1;
3518                         }
3519                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3520                                         STRLENOF( ATTRSONLYSTR ) ) )
3521                 {
3522                         si->si_attrsonly = 1;
3523                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3524                                         STRLENOF( ATTRSSTR "=" ) ) )
3525                 {
3526                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3527                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3528                                 char *attr_fname;
3529                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3530                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3531                                 if ( si->si_anlist == NULL ) {
3532                                         ch_free( attr_fname );
3533                                         return -1;
3534                                 }
3535                                 si->si_anfile = attr_fname;
3536                         } else {
3537                                 char *str, *s, *next;
3538                                 const char *delimstr = " ,\t";
3539                                 str = ch_strdup( val );
3540                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3541                                                 s != NULL;
3542                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3543                                 {
3544                                         if ( strlen(s) == 1 && *s == '*' ) {
3545                                                 si->si_allattrs = 1;
3546                                                 val[ s - str ] = delimstr[0];
3547                                         }
3548                                         if ( strlen(s) == 1 && *s == '+' ) {
3549                                                 si->si_allopattrs = 1;
3550                                                 val [ s - str ] = delimstr[0];
3551                                         }
3552                                 }
3553                                 ch_free( str );
3554                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3555                                 if ( si->si_anlist == NULL ) {
3556                                         return -1;
3557                                 }
3558                         }
3559                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3560                                         STRLENOF( EXATTRSSTR "=" ) ) )
3561                 {
3562                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3563                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3564                                 char *attr_fname;
3565                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3566                                 si->si_exanlist = file2anlist(
3567                                         si->si_exanlist, attr_fname, " ,\t" );
3568                                 if ( si->si_exanlist == NULL ) {
3569                                         ch_free( attr_fname );
3570                                         return -1;
3571                                 }
3572                                 ch_free( attr_fname );
3573                         } else {
3574                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3575                                 if ( si->si_exanlist == NULL ) {
3576                                         return -1;
3577                                 }
3578                         }
3579                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3580                                         STRLENOF( TYPESTR "=" ) ) )
3581                 {
3582                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3583                         if ( !strncasecmp( val, "refreshOnly",
3584                                                 STRLENOF("refreshOnly") ) )
3585                         {
3586                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3587                         } else if ( !strncasecmp( val, "refreshAndPersist",
3588                                                 STRLENOF("refreshAndPersist") ) )
3589                         {
3590                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3591                                 si->si_interval = 60;
3592                         } else {
3593                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3594                                         "Error: parse_syncrepl_line: "
3595                                         "unknown sync type \"%s\"", val);
3596                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3597                                 return -1;
3598                         }
3599                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3600                                         STRLENOF( INTERVALSTR "=" ) ) )
3601                 {
3602                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3603                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3604                                 si->si_interval = 0;
3605                         } else if ( strchr( val, ':' ) != NULL ) {
3606                                 char *next, *ptr = val;
3607                                 int dd, hh, mm, ss;
3608
3609                                 dd = strtol( ptr, &next, 10 );
3610                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3611                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3612                                                 "Error: parse_syncrepl_line: "
3613                                                 "invalid interval \"%s\", unable to parse days", val );
3614                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3615                                         return -1;
3616                                 }
3617                                 ptr = next + 1;
3618                                 hh = strtol( ptr, &next, 10 );
3619                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3620                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3621                                                 "Error: parse_syncrepl_line: "
3622                                                 "invalid interval \"%s\", unable to parse hours", val );
3623                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3624                                         return -1;
3625                                 }
3626                                 ptr = next + 1;
3627                                 mm = strtol( ptr, &next, 10 );
3628                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3629                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3630                                                 "Error: parse_syncrepl_line: "
3631                                                 "invalid interval \"%s\", unable to parse minutes", val );
3632                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3633                                         return -1;
3634                                 }
3635                                 ptr = next + 1;
3636                                 ss = strtol( ptr, &next, 10 );
3637                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3638                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3639                                                 "Error: parse_syncrepl_line: "
3640                                                 "invalid interval \"%s\", unable to parse seconds", val );
3641                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3642                                         return -1;
3643                                 }
3644                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3645                         } else {
3646                                 unsigned long   t;
3647
3648                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3649                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3650                                                 "Error: parse_syncrepl_line: "
3651                                                 "invalid interval \"%s\"", val );
3652                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3653                                         return -1;
3654                                 }
3655                                 si->si_interval = (time_t)t;
3656                         }
3657                         if ( si->si_interval < 0 ) {
3658                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3659                                         "Error: parse_syncrepl_line: "
3660                                         "invalid interval \"%ld\"",
3661                                         (long) si->si_interval);
3662                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3663                                 return -1;
3664                         }
3665                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3666                                         STRLENOF( RETRYSTR "=" ) ) )
3667                 {
3668                         char **retry_list;
3669                         int j, k, n;
3670
3671                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3672                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3673                         retry_list[0] = NULL;
3674
3675                         slap_str2clist( &retry_list, val, " ,\t" );
3676
3677                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3678                         n = k / 2;
3679                         if ( k % 2 ) {
3680                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3681                                         "Error: incomplete syncrepl retry list" );
3682                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3683                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3684                                         ch_free( retry_list[k] );
3685                                 }
3686                                 ch_free( retry_list );
3687                                 return 1;
3688                         }
3689                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3690                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3691                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3692                         for ( j = 0; j < n; j++ ) {
3693                                 unsigned long   t;
3694                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3695                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3696                                                 "Error: invalid retry interval \"%s\" (#%d)",
3697                                                 retry_list[j*2], j );
3698                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3699                                         /* do some cleanup */
3700                                         return 1;
3701                                 }
3702                                 si->si_retryinterval[j] = (time_t)t;
3703                                 if ( *retry_list[j*2+1] == '+' ) {
3704                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3705                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3706                                         j++;
3707                                         break;
3708                                 } else {
3709                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3710                                                         || si->si_retrynum_init[j] <= 0 )
3711                                         {
3712                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3713                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3714                                                         retry_list[j*2+1], j );
3715                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3716                                                 /* do some cleanup */
3717                                                 return 1;
3718                                         }
3719                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3720                                                         || si->si_retrynum[j] <= 0 )
3721                                         {
3722                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3723                                                         "Error: invalid retry number \"%s\" (#%d)",
3724                                                         retry_list[j*2+1], j );
3725                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3726                                                 /* do some cleanup */
3727                                                 return 1;
3728                                         }
3729                                 }
3730                         }
3731                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3732                         si->si_retrynum[j] = RETRYNUM_TAIL;
3733                         si->si_retryinterval[j] = 0;
3734
3735                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3736                                 ch_free( retry_list[k] );
3737                         }
3738                         ch_free( retry_list );
3739                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3740                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3741                 {
3742                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3743                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3744                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3745                         {
3746                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3747                                         "invalid manageDSAit value \"%s\".\n",
3748                                         val );
3749                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3750                                 return 1;
3751                         }
3752                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3753                                         STRLENOF( SLIMITSTR "=") ) )
3754                 {
3755                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3756                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3757                                 si->si_slimit = 0;
3758
3759                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3760                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3761                                         "invalid size limit value \"%s\".\n",
3762                                         val );
3763                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3764                                 return 1;
3765                         }
3766                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3767                                         STRLENOF( TLIMITSTR "=" ) ) )
3768                 {
3769                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3770                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3771                                 si->si_tlimit = 0;
3772
3773                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3774                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3775                                         "invalid time limit value \"%s\".\n",
3776                                         val );
3777                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3778                                 return 1;
3779                         }
3780                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3781                                         STRLENOF( SYNCDATASTR "=" ) ) )
3782                 {
3783                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3784                         si->si_syncdata = verb_to_mask( val, datamodes );
3785                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3786                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3787                                 "Error: parse_syncrepl_line: "
3788                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3789                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3790                         return -1;
3791                 }
3792         }
3793
3794         if ( gots != GOT_ALL ) {
3795                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3796                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3797                         gots & GOT_ID ? "" : " "IDSTR,
3798                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3799                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3800                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3801                 return -1;
3802         }
3803
3804         return 0;
3805 }
3806
3807 static int
3808 add_syncrepl(
3809         ConfigArgs *c )
3810 {
3811         syncinfo_t *si;
3812         int     rc = 0;
3813
3814         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3815                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3816                         "operations required for syncrepl", c->be->be_type );
3817                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3818                 return 1;
3819         }
3820         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3821                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3822                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3823                 return 1;
3824         }
3825         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3826
3827         if ( si == NULL ) {
3828                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3829                 return 1;
3830         }
3831
3832         si->si_bindconf.sb_tls = SB_TLS_OFF;
3833         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3834         si->si_schemachecking = 0;
3835         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3836                 &si->si_filterstr );
3837         si->si_base.bv_val = NULL;
3838         si->si_scope = LDAP_SCOPE_SUBTREE;
3839         si->si_attrsonly = 0;
3840         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3841         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3842         si->si_attrs = NULL;
3843         si->si_allattrs = 0;
3844         si->si_allopattrs = 0;
3845         si->si_exattrs = NULL;
3846         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3847         si->si_interval = 86400;
3848         si->si_retryinterval = NULL;
3849         si->si_retrynum_init = NULL;
3850         si->si_retrynum = NULL;
3851         si->si_manageDSAit = 0;
3852         si->si_tlimit = 0;
3853         si->si_slimit = 0;
3854
3855         si->si_presentlist = NULL;
3856         LDAP_LIST_INIT( &si->si_nonpresentlist );
3857         ldap_pvt_thread_mutex_init( &si->si_mutex );
3858
3859         rc = parse_syncrepl_line( c, si );
3860
3861         if ( rc == 0 ) {
3862                 /* Must be LDAPv3 because we need controls */
3863                 switch ( si->si_bindconf.sb_version ) {
3864                 case 0:
3865                         /* not explicitly set */
3866                         si->si_bindconf.sb_version = LDAP_VERSION3;
3867                         break;
3868                 case 3:
3869                         /* explicitly set */
3870                         break;
3871                 default:
3872                         Debug( LDAP_DEBUG_ANY,
3873                                 "version %d incompatible with syncrepl\n",
3874                                 si->si_bindconf.sb_version, 0, 0 );
3875                         syncinfo_free( si, 0 );
3876                         return 1;
3877                 }
3878
3879                 si->si_be = c->be;
3880                 if ( slapMode & SLAP_SERVER_MODE ) {
3881                         Listener **l = slapd_get_listeners();
3882                         int isMe = 0;
3883
3884                         /* check if URL points to current server. If so, ignore
3885                          * this configuration. We require an exact match. Just
3886                          * in case they really want to do this, they can vary
3887                          * the case of the URL to allow it.
3888                          */
3889                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3890                                 int i;
3891                                 for ( i=0; l[i]; i++ ) {
3892                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3893                                                 isMe = 1;
3894                                                 break;
3895                                         }
3896                                 }
3897                         }
3898
3899                         if ( !isMe ) {
3900                                 init_syncrepl( si );
3901                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3902                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3903                                         si->si_ridtxt );
3904                                 if ( si->si_re )
3905                                         rc = config_sync_shadow( c ) ? -1 : 0;
3906                                 else
3907                                         rc = -1;
3908                         }
3909                 } else {
3910                         /* mirrormode still needs to see this flag in tool mode */
3911                         rc = config_sync_shadow( c ) ? -1 : 0;
3912                 }
3913         }
3914
3915 #ifdef HAVE_TLS
3916         /* Use main slapd defaults */
3917         bindconf_tls_defaults( &si->si_bindconf );
3918 #endif
3919         if ( rc < 0 ) {
3920                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3921                 syncinfo_free( si, 0 );
3922                 return 1;
3923         } else {
3924                 Debug( LDAP_DEBUG_CONFIG,
3925                         "Config: ** successfully added syncrepl \"%s\"\n",
3926                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3927                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3928                 if ( !si->si_schemachecking ) {
3929                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3930                 }
3931                 if ( c->be->be_syncinfo ) {
3932                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3933                 } else {
3934                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3935                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3936                 }
3937                 si->si_next = c->be->be_syncinfo;
3938                 c->be->be_syncinfo = si;
3939                 return 0;
3940         }
3941 }
3942
3943 static void
3944 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3945 {
3946         struct berval bc, uri;
3947         char buf[BUFSIZ*2], *ptr;
3948         int i;
3949
3950 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3951
3952         BER_BVZERO( bv );
3953
3954         /* temporarily inhibit bindconf from printing URI */
3955         uri = si->si_bindconf.sb_uri;
3956         BER_BVZERO( &si->si_bindconf.sb_uri );
3957         si->si_bindconf.sb_version = 0;
3958         bindconf_unparse( &si->si_bindconf, &bc );
3959         si->si_bindconf.sb_uri = uri;
3960         si->si_bindconf.sb_version = LDAP_VERSION3;
3961
3962         ptr = buf;
3963         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3964         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
3965                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3966         if ( ptr - buf >= sizeof( buf ) ) return;
3967         if ( !BER_BVISNULL( &bc ) ) {
3968                 if ( WHATSLEFT <= bc.bv_len ) {
3969                         free( bc.bv_val );
3970                         return;
3971                 }
3972                 ptr = lutil_strcopy( ptr, bc.bv_val );
3973                 free( bc.bv_val );
3974         }
3975         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3976                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3977                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3978                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3979                 *ptr++ = '"';
3980         }
3981         if ( !BER_BVISNULL( &si->si_base ) ) {
3982                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3983                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3984                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3985                 *ptr++ = '"';
3986         }
3987         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3988                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3989                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3990                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3991                 *ptr++ = '"';
3992         }
3993         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3994                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3995                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3996                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3997                 *ptr++ = '"';
3998         }
3999         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4000                 if ( si->si_scope == scopes[i].val ) {
4001                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4002                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4003                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4004                         break;
4005                 }
4006         }
4007         if ( si->si_attrsonly ) {
4008                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4009                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4010         }
4011         if ( si->si_anfile ) {
4012                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4013                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4014                 ptr = lutil_strcopy( ptr, si->si_anfile );
4015                 *ptr++ = '"';
4016         } else if ( si->si_allattrs || si->si_allopattrs ||
4017                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4018         {
4019                 char *old;
4020
4021                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4022                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4023                 old = ptr;
4024                 /* FIXME: add check for overflow */
4025                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4026                 if ( si->si_allattrs ) {
4027                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4028                         if ( old != ptr ) *ptr++ = ',';
4029                         *ptr++ = '*';
4030                 }
4031                 if ( si->si_allopattrs ) {
4032                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4033                         if ( old != ptr ) *ptr++ = ',';
4034                         *ptr++ = '+';
4035                 }
4036                 *ptr++ = '"';
4037         }
4038         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4039                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4040                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4041                 /* FIXME: add check for overflow */
4042                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4043         }
4044         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4045         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4046         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4047
4048         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4049         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4050         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4051                 "refreshAndPersist" : "refreshOnly" );
4052
4053         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4054                 int dd, hh, mm, ss;
4055
4056                 dd = si->si_interval;
4057                 ss = dd % 60;
4058                 dd /= 60;
4059                 mm = dd % 60;
4060                 dd /= 60;
4061                 hh = dd % 24;
4062                 dd /= 24;
4063                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4064                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4065                 if ( ptr - buf >= sizeof( buf ) ) return;
4066         } else if ( si->si_retryinterval ) {
4067                 int space=0;
4068                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4069                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4070                 for (i=0; si->si_retryinterval[i]; i++) {
4071                         if ( space ) *ptr++ = ' ';
4072                         space = 1;
4073                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4074                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4075                                 *ptr++ = '+';
4076                         else
4077                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4078                 }
4079                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4080                 *ptr++ = '"';
4081         }
4082
4083         if ( si->si_slimit ) {
4084                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4085                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4086                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4087         }
4088
4089         if ( si->si_tlimit ) {
4090                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4091                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4092                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4093         }
4094
4095         if ( si->si_syncdata ) {
4096                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4097                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4098                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4099                         ptr = lutil_strcopy( ptr, bc.bv_val );
4100                 }
4101         }
4102         bc.bv_len = ptr - buf;
4103         bc.bv_val = buf;
4104         ber_dupbv( bv, &bc );
4105 }
4106
4107 int
4108 syncrepl_config( ConfigArgs *c )
4109 {
4110         if (c->op == SLAP_CONFIG_EMIT) {
4111                 if ( c->be->be_syncinfo ) {
4112                         struct berval bv;
4113                         syncinfo_t *si;
4114
4115                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4116                                 syncrepl_unparse( si, &bv );
4117                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4118                         }
4119                         return 0;
4120                 }
4121                 return 1;
4122         } else if ( c->op == LDAP_MOD_DELETE ) {
4123                 cookie_state *cs = NULL;
4124                 if ( c->be->be_syncinfo ) {
4125                         syncinfo_t *si, **sip;
4126                         int i;
4127
4128                         cs = c->be->be_syncinfo->si_cookieState;
4129                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4130                                 si = *sip;
4131                                 if ( c->valx == -1 || i == c->valx ) {
4132                                         *sip = si->si_next;
4133                                         /* If the task is currently active, we have to leave
4134                                          * it running. It will exit on its own. This will only
4135                                          * happen when running on the cn=config DB.
4136                                          */
4137                                         if ( si->si_re &&
4138                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
4139                                                 si->si_ctype = 0;
4140                                         } else {
4141                                                 syncinfo_free( si, 0 );
4142                                         }
4143                                         if ( i == c->valx )
4144                                                 break;
4145                                 } else {
4146                                         sip = &si->si_next;
4147                                 }
4148                         }
4149                 }
4150                 if ( !c->be->be_syncinfo ) {
4151                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4152                         if ( cs ) {
4153                                 ber_bvarray_free( cs->cs_vals );
4154                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4155                                 ch_free( cs );
4156                         }
4157                 }
4158                 return 0;
4159         }
4160         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4161                 Debug(LDAP_DEBUG_ANY, "%s: "
4162                         "syncrepl: database already shadowed.\n",
4163                         c->log, 0, 0);
4164                 return(1);
4165         } else {
4166                 return add_syncrepl( c );
4167         }
4168 }