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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2008 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         ber_int_t       si_msgid;
 100         Avlnode                 *si_presentlist;
 101         LDAP                    *si_ld;
 102         Connection              *si_conn;
 103         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 104         ldap_pvt_thread_mutex_t si_mutex;
 105 } syncinfo_t;
 106
 107 static int syncuuid_cmp( const void *, const void * );
 108 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 109 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 110 static int syncrepl_message_to_op(
 111                                         syncinfo_t *, Operation *, LDAPMessage * );
 112 static int syncrepl_message_to_entry(
 113                                         syncinfo_t *, Operation *, LDAPMessage *,
 114                                         Modifications **, Entry **, int );
 115 static int syncrepl_entry(
 116                                         syncinfo_t *, Operation*, Entry*,
 117                                         Modifications**,int, struct berval*,
 118                                         struct berval *cookieCSN );
 119 static int syncrepl_updateCookie(
 120                                         syncinfo_t *, Operation *, struct berval *,
 121                                         struct sync_cookie * );
 122 static struct berval * slap_uuidstr_from_normalized(
 123                                         struct berval *, struct berval *, void * );
 124
 125 /* callback functions */
 126 static int dn_callback( Operation *, SlapReply * );
 127 static int nonpresent_callback( Operation *, SlapReply * );
 128 static int null_callback( Operation *, SlapReply * );
 129
 130 static AttributeDescription *sync_descs[4];
 131
 132 static const char *
 133 syncrepl_state2str( int state )
 134 {
 135         switch ( state ) {
 136         case LDAP_SYNC_PRESENT:
 137                 return "PRESENT";
 138
 139         case LDAP_SYNC_ADD:
 140                 return "ADD";
 141
 142         case LDAP_SYNC_MODIFY:
 143                 return "MODIFY";
 144
 145         case LDAP_SYNC_DELETE:
 146                 return "DELETE";
 147         }
 148
 149         return "UNKNOWN";
 150 }
 151
 152 static void
 153 init_syncrepl(syncinfo_t *si)
 154 {
 155         int i, j, k, l, n;
 156         char **attrs, **exattrs;
 157
 158         if ( !sync_descs[0] ) {
 159                 sync_descs[0] = slap_schema.si_ad_objectClass;
 160                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 161                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 162                 sync_descs[3] = NULL;
 163         }
 164
 165         if ( si->si_allattrs && si->si_allopattrs )
 166                 attrs = NULL;
 167         else
 168                 attrs = anlist2attrs( si->si_anlist );
 169
 170         if ( attrs ) {
 171                 if ( si->si_allattrs ) {
 172                         i = 0;
 173                         while ( attrs[i] ) {
 174                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 175                                         for ( j = i; attrs[j] != NULL; j++ ) {
 176                                                 if ( j == i )
 177                                                         ch_free( attrs[i] );
 178                                                 attrs[j] = attrs[j+1];
 179                                         }
 180                                 } else {
 181                                         i++;
 182                                 }
 183                         }
 184                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 185                         attrs[i] = ch_strdup("*");
 186                         attrs[i + 1] = NULL;
 187
 188                 } else if ( si->si_allopattrs ) {
 189                         i = 0;
 190                         while ( attrs[i] ) {
 191                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 192                                         for ( j = i; attrs[j] != NULL; j++ ) {
 193                                                 if ( j == i )
 194                                                         ch_free( attrs[i] );
 195                                                 attrs[j] = attrs[j+1];
 196                                         }
 197                                 } else {
 198                                         i++;
 199                                 }
 200                         }
 201                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 202                         attrs[i] = ch_strdup("+");
 203                         attrs[i + 1] = NULL;
 204                 }
 205
 206                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 207                         j = 0;
 208                         while ( attrs[j] ) {
 209                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 210                                         for ( k = j; attrs[k] != NULL; k++ ) {
 211                                                 if ( k == j )
 212                                                         ch_free( attrs[k] );
 213                                                 attrs[k] = attrs[k+1];
 214                                         }
 215                                 } else {
 216                                         j++;
 217                                 }
 218                         }
 219                 }
 220
 221                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 222
 223                 if ( si->si_allopattrs ) {
 224                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 225                 } else {
 226                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 227                 }
 228
 229                 /* Add Attributes */
 230                 if ( si->si_allopattrs ) {
 231                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 232                 } else {
 233                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 234                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 235                         }
 236                 }
 237                 attrs[ n ] = NULL;
 238
 239         } else {
 240
 241                 i = 0;
 242                 if ( si->si_allattrs == si->si_allopattrs ) {
 243                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 244                         attrs[i++] = ch_strdup( "*" );
 245                         attrs[i++] = ch_strdup( "+" );
 246                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 247                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 248                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 249                         attrs[i++] = ch_strdup( "*" );
 250                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 251                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 252                         }
 253                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 254                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 255                         attrs[i++] = ch_strdup( "+" );
 256                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 257                 }
 258                 attrs[i] = NULL;
 259         }
 260
 261         si->si_attrs = attrs;
 262
 263         exattrs = anlist2attrs( si->si_exanlist );
 264
 265         if ( exattrs ) {
 266                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 267
 268                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 269                         j = 0;
 270                         while ( exattrs[j] != NULL ) {
 271                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 272                                         ch_free( exattrs[j] );
 273                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 274                                                 exattrs[k] = exattrs[k+1];
 275                                         }
 276                                 } else {
 277                                         j++;
 278                                 }
 279                         }
 280                 }
 281
 282                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 283                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 284                                 ObjectClass     *oc;
 285                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 286                                         k = 0;
 287                                         while ( oc->soc_required[k] ) {
 288                                                 if ( !strcmp( exattrs[i],
 289                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 290                                                         ch_free( exattrs[i] );
 291                                                         for ( l = i; exattrs[l]; l++ ) {
 292                                                                 exattrs[l] = exattrs[l+1];
 293                                                         }
 294                                                 } else {
 295                                                         k++;
 296                                                 }
 297                                         }
 298                                 }
 299                         }
 300                 }
 301
 302                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 303
 304                 if ( i != n )
 305                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 306         }
 307
 308         si->si_exattrs = exattrs;
 309 }
 310
 311 typedef struct logschema {
 312         struct berval ls_dn;
 313         struct berval ls_req;
 314         struct berval ls_mod;
 315         struct berval ls_newRdn;
 316         struct berval ls_delRdn;
 317         struct berval ls_newSup;
 318 } logschema;
 319
 320 static logschema changelog_sc = {
 321         BER_BVC("targetDN"),
 322         BER_BVC("changeType"),
 323         BER_BVC("changes"),
 324         BER_BVC("newRDN"),
 325         BER_BVC("deleteOldRDN"),
 326         BER_BVC("newSuperior")
 327 };
 328
 329 static logschema accesslog_sc = {
 330         BER_BVC("reqDN"),
 331         BER_BVC("reqType"),
 332         BER_BVC("reqMod"),
 333         BER_BVC("reqNewRDN"),
 334         BER_BVC("reqDeleteOldRDN"),
 335         BER_BVC("reqNewSuperior")
 336 };
 337
 338 static int
 339 ldap_sync_search(
 340         syncinfo_t *si,
 341         void *ctx )
 342 {
 343         BerElementBuffer berbuf;
 344         BerElement *ber = (BerElement *)&berbuf;
 345         LDAPControl c[2], *ctrls[3];
 346         int rc;
 347         int rhint;
 348         char *base;
 349         char **attrs, *lattrs[8];
 350         char *filter;
 351         int attrsonly;
 352         int scope;
 353
 354         /* setup LDAP SYNC control */
 355         ber_init2( ber, NULL, LBER_USE_DER );
 356         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 357
 358         /* If we're using a log but we have no state, then fallback to
 359          * normal mode for a full refresh.
 360          */
 361         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 362                 si->si_logstate = SYNCLOG_FALLBACK;
 363         }
 364
 365         /* Use the log parameters if we're in log mode */
 366         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 367                 logschema *ls;
 368                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 369                         ls = &accesslog_sc;
 370                 else
 371                         ls = &changelog_sc;
 372                 lattrs[0] = ls->ls_dn.bv_val;
 373                 lattrs[1] = ls->ls_req.bv_val;
 374                 lattrs[2] = ls->ls_mod.bv_val;
 375                 lattrs[3] = ls->ls_newRdn.bv_val;
 376                 lattrs[4] = ls->ls_delRdn.bv_val;
 377                 lattrs[5] = ls->ls_newSup.bv_val;
 378                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 379                 lattrs[7] = NULL;
 380
 381                 rhint = 0;
 382                 base = si->si_logbase.bv_val;
 383                 filter = si->si_logfilterstr.bv_val;
 384                 attrs = lattrs;
 385                 attrsonly = 0;
 386                 scope = LDAP_SCOPE_SUBTREE;
 387         } else {
 388                 rhint = 1;
 389                 base = si->si_base.bv_val;
 390                 filter = si->si_filterstr.bv_val;
 391                 attrs = si->si_attrs;
 392                 attrsonly = si->si_attrsonly;
 393                 scope = si->si_scope;
 394         }
 395         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 396                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 397         } else {
 398                 si->si_type = si->si_ctype;
 399         }
 400
 401         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 402         {
 403                 ber_printf( ber, "{eOb}",
 404                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 405         } else {
 406                 ber_printf( ber, "{eb}",
 407                         abs(si->si_type), rhint );
 408         }
 409
 410         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 411                 ber_free_buf( ber );
 412                 return rc;
 413         }
 414
 415         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 416         c[0].ldctl_iscritical = si->si_type < 0;
 417         ctrls[0] = &c[0];
 418
 419         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 420                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 421                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 422                 c[1].ldctl_iscritical = 1;
 423                 ctrls[1] = &c[1];
 424                 ctrls[2] = NULL;
 425         } else {
 426                 ctrls[1] = NULL;
 427         }
 428
 429         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 430                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 431         ber_free_buf( ber );
 432         return rc;
 433 }
 434
 435 static int
 436 do_syncrep1(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         int     rc;
 441         int cmdline_cookie_found = 0;
 442
 443         struct sync_cookie      *sc = NULL;
 444 #ifdef HAVE_TLS
 445         void    *ssl;
 446 #endif
 447
 448         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 449         if ( rc != LDAP_SUCCESS ) {
 450                 goto done;
 451         }
 452         op->o_protocol = LDAP_VERSION3;
 453
 454         /* Set SSF to strongest of TLS, SASL SSFs */
 455         op->o_sasl_ssf = 0;
 456         op->o_tls_ssf = 0;
 457         op->o_transport_ssf = 0;
 458 #ifdef HAVE_TLS
 459         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 460                 == LDAP_SUCCESS && ssl != NULL )
 461         {
 462                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 463         }
 464 #endif /* HAVE_TLS */
 465         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 466         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 467                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 468
 469         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 470
 471         si->si_syncCookie.rid = si->si_rid;
 472         si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 473                 slap_serverID;
 474
 475         /* We've just started up, or the remote server hasn't sent us
 476          * any meaningful state.
 477          */
 478         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 479                 int i;
 480
 481                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 482                         if ( si->si_rid == sc->rid ) {
 483                                 cmdline_cookie_found = 1;
 484                                 break;
 485                         }
 486                 }
 487
 488                 if ( cmdline_cookie_found ) {
 489                         /* cookie is supplied in the command line */
 490
 491                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 492
 493                         /* ctxcsn wasn't parsed yet, do it now */
 494                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 495                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 496                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 497                         slap_sync_cookie_free( sc, 1 );
 498                 } else {
 499                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 500                         if ( !si->si_cookieState->cs_num ) {
 501                                 /* get contextCSN shadow replica from database */
 502                                 BerVarray csn = NULL;
 503                                 void *ctx = op->o_tmpmemctx;
 504
 505                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 506                                 op->o_req_dn = op->o_req_ndn;
 507
 508                                 /* try to read stored contextCSN */
 509                                 op->o_tmpmemctx = NULL;
 510                                 backend_attribute( op, NULL, &op->o_req_ndn,
 511                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 512                                 op->o_tmpmemctx = ctx;
 513                                 if ( csn ) {
 514                                         si->si_cookieState->cs_vals = csn;
 515                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 516                                         si->si_cookieState->cs_num = i;
 517                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 518                                 }
 519                         }
 520                         if ( si->si_cookieState->cs_num ) {
 521                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 522                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 523                                         si->si_cookieState->cs_vals, NULL )) {
 524                                         rc = LDAP_NO_MEMORY;
 525                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 526                                         goto done;
 527                                 }
 528                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 529                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 530                                         sizeof(int) );
 531                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 532                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 533                         }
 534                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 535                 }
 536
 537                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 538                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 539                         si->si_syncCookie.sid );
 540         } else {
 541                 AttributeName at[2];
 542                 Attribute a = {0};
 543                 Entry e = {0};
 544                 SlapReply rs = {0};
 545                 int i, j, changed = 0;
 546
 547                 /* Look for contextCSN from syncprov overlay. If
 548                  * there's no overlay, this will be a no-op. That means
 549                  * this is a pure consumer, so local changes will not be
 550                  * allowed, and all changes will already be reflected in
 551                  * the cookieState.
 552                  */
 553                 a.a_desc = slap_schema.si_ad_contextCSN;
 554                 e.e_attrs = &a;
 555                 e.e_name = op->o_bd->be_suffix[0];
 556                 e.e_nname = op->o_bd->be_nsuffix[0];
 557                 at[0].an_name = a.a_desc->ad_cname;
 558                 at[0].an_desc = a.a_desc;
 559                 BER_BVZERO( &at[1].an_name );
 560                 rs.sr_entry = &e;
 561                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 562                 rs.sr_attrs = at;
 563                 op->o_req_dn = e.e_name;
 564                 op->o_req_ndn = e.e_nname;
 565
 566                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 567                 rc = backend_operational( op, &rs );
 568                 if ( rc == LDAP_SUCCESS && a.a_nvals ) {
 569                         int num = a.a_numvals;
 570                         /* check for differences */
 571                         if ( num != si->si_cookieState->cs_num ) {
 572                                 changed = 1;
 573                         } else {
 574                                 for ( i=0; i<num; i++ ) {
 575                                         if ( ber_bvcmp( &a.a_nvals[i],
 576                                                 &si->si_cookieState->cs_vals[i] )) {
 577                                                 changed =1;
 578                                                 break;
 579                                         }
 580                                 }
 581                         }
 582                         if ( changed ) {
 583                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 584                                 ch_free( si->si_cookieState->cs_sids );
 585                                 si->si_cookieState->cs_num = num;
 586                                 si->si_cookieState->cs_vals = a.a_nvals;
 587                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 588                                         num, NULL );
 589                                 si->si_cookieState->cs_age++;
 590                         } else {
 591                                 ber_bvarray_free( a.a_nvals );
 592                         }
 593                         ber_bvarray_free( a.a_vals );
 594                 }
 595                 /* See if the cookieState has changed due to anything outside
 596                  * this particular consumer. That includes other consumers in
 597                  * the same context, or local changes detected above.
 598                  */
 599                 if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 600                         si->si_cookieState->cs_age ) {
 601                         if ( !si->si_syncCookie.numcsns ) {
 602                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 603                                 ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 604                                         si->si_cookieState->cs_vals, NULL );
 605                                 changed = 1;
 606                         } else {
 607                                 for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 608                                         /* bogus, just dup everything */
 609                                         if ( si->si_syncCookie.sids[i] == -1 ) {
 610                                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 611                                                 ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 612                                                         si->si_cookieState->cs_vals, NULL );
 613                                                 changed = 1;
 614                                                 break;
 615                                         }
 616                                         for (j=0; j<si->si_cookieState->cs_num; j++) {
 617                                                 if ( si->si_syncCookie.sids[i] !=
 618                                                         si->si_cookieState->cs_sids[j] )
 619                                                         continue;
 620                                                 if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 621                                                         &si->si_cookieState->cs_vals[j] ))
 622                                                         break;
 623                                                 ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 624                                                         &si->si_cookieState->cs_vals[j] );
 625                                                 changed = 1;
 626                                                 break;
 627                                         }
 628                                 }
 629                         }
 630                 }
 631                 if ( changed ) {
 632                         si->si_cookieAge = si->si_cookieState->cs_age;
 633                         ch_free( si->si_syncCookie.octet_str.bv_val );
 634                         slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 635                                 si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 636                                 si->si_syncCookie.sid );
 637                 }
 638                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 639         }
 640
 641         si->si_refreshDone = 0;
 642
 643         rc = ldap_sync_search( si, op->o_tmpmemctx );
 644
 645         if( rc != LDAP_SUCCESS ) {
 646                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 647                         "ldap_search_ext: %s (%d)\n",
 648                         si->si_ridtxt, ldap_err2string( rc ), rc );
 649         }
 650
 651 done:
 652         if ( rc ) {
 653                 if ( si->si_ld ) {
 654                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 655                         si->si_ld = NULL;
 656                 }
 657         }
 658
 659         return rc;
 660 }
 661
 662 static int
 663 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 664 {
 665         int i, j, match = 0;
 666         const char *text;
 667
 668         *which = 0;
 669
 670         if ( sc1->numcsns < sc2->numcsns ) {
 671                 *which = sc1->numcsns;
 672                 return -1;
 673         }
 674
 675         for (i=0; i<sc1->numcsns; i++) {
 676                 for (j=0; i<sc2->numcsns; j++) {
 677                         if ( sc1->sids[i] != sc2->sids[j] )
 678                                 continue;
 679                         value_match( &match, slap_schema.si_ad_entryCSN,
 680                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 681                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 682                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 683                         if ( match < 0 ) {
 684                                 *which = j;
 685                                 return match;
 686                         }
 687                         break;
 688                 }
 689         }
 690         return match;
 691 }
 692
 693 #define SYNC_PAUSED     -3
 694
 695 static int
 696 do_syncrep2(
 697         Operation *op,
 698         syncinfo_t *si )
 699 {
 700         LDAPControl     **rctrls = NULL;
 701         LDAPControl     *rctrlp;
 702
 703         BerElementBuffer berbuf;
 704         BerElement      *ber = (BerElement *)&berbuf;
 705
 706         LDAPMessage     *msg = NULL;
 707
 708         char            *retoid = NULL;
 709         struct berval   *retdata = NULL;
 710
 711         Entry           *entry = NULL;
 712
 713         int             syncstate;
 714         struct berval   syncUUID = BER_BVNULL;
 715         struct sync_cookie      syncCookie = { NULL };
 716         struct sync_cookie      syncCookie_req = { NULL };
 717         struct berval           cookie = BER_BVNULL;
 718
 719         int             rc,
 720                         err = LDAP_SUCCESS;
 721         ber_len_t       len;
 722
 723         struct berval   *psub;
 724         Modifications   *modlist = NULL;
 725
 726         int                             match, m;
 727
 728         struct timeval *tout_p = NULL;
 729         struct timeval tout = { 0, 0 };
 730
 731         int             refreshDeletes = 0;
 732         BerVarray syncUUIDs = NULL;
 733         ber_tag_t si_tag;
 734
 735         if ( slapd_shutdown ) {
 736                 rc = -2;
 737                 goto done;
 738         }
 739
 740         ber_init2( ber, NULL, LBER_USE_DER );
 741         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 742
 743         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 744
 745         psub = &si->si_be->be_nsuffix[0];
 746
 747         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 748
 749         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 750                 tout_p = &tout;
 751         } else {
 752                 tout_p = NULL;
 753         }
 754
 755         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 756                 tout_p, &msg ) ) > 0 )
 757         {
 758                 if ( slapd_shutdown ) {
 759                         rc = -2;
 760                         goto done;
 761                 }
 762                 switch( ldap_msgtype( msg ) ) {
 763                 case LDAP_RES_SEARCH_ENTRY:
 764                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 765                         /* we can't work without the control */
 766                         rctrlp = NULL;
 767                         if ( rctrls ) {
 768                                 LDAPControl **next;
 769                                 /* NOTE: make sure we use the right one;
 770                                  * a better approach would be to run thru
 771                                  * the whole list and take care of all */
 772                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 773                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 774                                 {
 775                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 776                                                 "got search entry with multiple "
 777                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 778                                         rc = -1;
 779                                         goto done;
 780                                 }
 781                         }
 782                         if ( rctrlp == NULL ) {
 783                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 784                                         "got search entry without "
 785                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 786                                 rc = -1;
 787                                 goto done;
 788                         }
 789                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 790                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 791                         /* FIXME: what if syncUUID is NULL or empty?
 792                          * (happens with back-sql...) */
 793                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 794                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 795                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 796                                         si->si_ridtxt,
 797                                         syncrepl_state2str( syncstate ), 0 );
 798                                 ldap_controls_free( rctrls );
 799                                 rc = -1;
 800                                 goto done;
 801                         }
 802                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 803                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 804
 805                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 806                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 807
 808                                 if ( !BER_BVISNULL( &cookie ) ) {
 809                                         ch_free( syncCookie.octet_str.bv_val );
 810                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 811                                 }
 812                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 813                                 {
 814                                         slap_parse_sync_cookie( &syncCookie, NULL );
 815                                         if ( syncCookie.ctxcsn ) {
 816                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 817                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 818                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 819                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 820                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 821                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 822                                                                 ldap_controls_free( rctrls );
 823                                                                 rc = 0;
 824                                                                 goto done;
 825                                                         }
 826                                                 }
 827                                         }
 828                                 }
 829                         }
 830                         rc = 0;
 831                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 832                                 modlist = NULL;
 833                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 834                                         syncCookie.ctxcsn )
 835                                 {
 836                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 837                                 } else switch ( rc ) {
 838                                         case LDAP_ALREADY_EXISTS:
 839                                         case LDAP_NO_SUCH_OBJECT:
 840                                         case LDAP_NO_SUCH_ATTRIBUTE:
 841                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 842                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 843                                                 si->si_logstate = SYNCLOG_FALLBACK;
 844                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 845                                                 break;
 846                                         default:
 847                                                 break;
 848                                 }
 849                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 850                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 851                         {
 852                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 853                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 854                                         syncCookie.ctxcsn )
 855                                 {
 856                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 857                                 }
 858                         }
 859                         ldap_controls_free( rctrls );
 860                         if ( modlist ) {
 861                                 slap_mods_free( modlist, 1 );
 862                         }
 863                         if ( rc )
 864                                 goto done;
 865                         break;
 866
 867                 case LDAP_RES_SEARCH_REFERENCE:
 868                         Debug( LDAP_DEBUG_ANY,
 869                                 "do_syncrep2: %s reference received error\n",
 870                                 si->si_ridtxt, 0, 0 );
 871                         break;
 872
 873                 case LDAP_RES_SEARCH_RESULT:
 874                         Debug( LDAP_DEBUG_SYNC,
 875                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 876                                 si->si_ridtxt, 0, 0 );
 877                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 878                                 &rctrls, 0 );
 879 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 880                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 881                                 /* map old result code to registered code */
 882                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 883                         }
 884 #endif
 885                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 886                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 887                                         si->si_logstate = SYNCLOG_FALLBACK;
 888                                 }
 889                                 rc = err;
 890                                 goto done;
 891                         }
 892                         if ( rctrls ) {
 893                                 rctrlp = *rctrls;
 894                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 895
 896                                 ber_scanf( ber, "{" /*"}"*/);
 897                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 898                                         ber_scanf( ber, "m", &cookie );
 899
 900                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 901                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 902
 903                                         if ( !BER_BVISNULL( &cookie ) ) {
 904                                                 ch_free( syncCookie.octet_str.bv_val );
 905                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 906                                         }
 907                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 908                                         {
 909                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 910                                         }
 911                                 }
 912                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 913                                 {
 914                                         ber_scanf( ber, "b", &refreshDeletes );
 915                                 }
 916                                 ber_scanf( ber, /*"{"*/ "}" );
 917                         }
 918                         if ( !syncCookie.ctxcsn ) {
 919                                 match = 1;
 920                         } else if ( !syncCookie_req.ctxcsn ) {
 921                                 match = -1;
 922                                 m = 0;
 923                         } else {
 924                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 925                         }
 926                         if ( rctrls ) {
 927                                 ldap_controls_free( rctrls );
 928                         }
 929                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 930                                 /* FIXME : different error behaviors according to
 931                                  *      1) err code : LDAP_BUSY ...
 932                                  *      2) on err policy : stop service, stop sync, retry
 933                                  */
 934                                 if ( refreshDeletes == 0 && match < 0 &&
 935                                         err == LDAP_SUCCESS )
 936                                 {
 937                                         syncrepl_del_nonpresent( op, si, NULL,
 938                                                 &syncCookie.ctxcsn[m] );
 939                                 } else {
 940                                         avl_free( si->si_presentlist, ch_free );
 941                                         si->si_presentlist = NULL;
 942                                 }
 943                         }
 944                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 945                         {
 946                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 947                         }
 948                         if ( err == LDAP_SUCCESS
 949                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 950                                 si->si_logstate = SYNCLOG_LOGGING;
 951                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 952                         } else {
 953                                 rc = -2;
 954                         }
 955                         goto done;
 956                         break;
 957
 958                 case LDAP_RES_INTERMEDIATE:
 959                         rc = ldap_parse_intermediate( si->si_ld, msg,
 960                                 &retoid, &retdata, NULL, 0 );
 961                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 962                                 ber_init2( ber, retdata, LBER_USE_DER );
 963
 964                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 965                                 ber_tag_t tag;
 966                                 case LDAP_TAG_SYNC_NEW_COOKIE:
 967                                         Debug( LDAP_DEBUG_SYNC,
 968                                                 "do_syncrep2: %s %s - %s\n",
 969                                                 si->si_ridtxt,
 970                                                 "LDAP_RES_INTERMEDIATE",
 971                                                 "NEW_COOKIE" );
 972                                         ber_scanf( ber, "tm", &tag, &cookie );
 973                                         break;
 974                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
 975                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
 976                                         Debug( LDAP_DEBUG_SYNC,
 977                                                 "do_syncrep2: %s %s - %s\n",
 978                                                 si->si_ridtxt,
 979                                                 "LDAP_RES_INTERMEDIATE",
 980                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 981                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
 982                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 983                                                 si->si_refreshDelete = 1;
 984                                         } else {
 985                                                 si->si_refreshPresent = 1;
 986                                         }
 987                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
 988                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 989                                         {
 990                                                 ber_scanf( ber, "m", &cookie );
 991
 992                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 993                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 994
 995                                                 if ( !BER_BVISNULL( &cookie ) ) {
 996                                                         ch_free( syncCookie.octet_str.bv_val );
 997                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 998                                                 }
 999                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1000                                                 {
1001                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1002                                                 }
1003                                         }
1004                                         /* Defaults to TRUE */
1005                                         if ( ber_peek_tag( ber, &len ) ==
1006                                                 LDAP_TAG_REFRESHDONE )
1007                                         {
1008                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1009                                         } else
1010                                         {
1011                                                 si->si_refreshDone = 1;
1012                                         }
1013                                         ber_scanf( ber, /*"{"*/ "}" );
1014                                         break;
1015                                 case LDAP_TAG_SYNC_ID_SET:
1016                                         Debug( LDAP_DEBUG_SYNC,
1017                                                 "do_syncrep2: %s %s - %s\n",
1018                                                 si->si_ridtxt,
1019                                                 "LDAP_RES_INTERMEDIATE",
1020                                                 "SYNC_ID_SET" );
1021                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1022                                         if ( ber_peek_tag( ber, &len ) ==
1023                                                 LDAP_TAG_SYNC_COOKIE )
1024                                         {
1025                                                 ber_scanf( ber, "m", &cookie );
1026
1027                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1028                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1029
1030                                                 if ( !BER_BVISNULL( &cookie ) ) {
1031                                                         ch_free( syncCookie.octet_str.bv_val );
1032                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1033                                                 }
1034                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1035                                                 {
1036                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1037                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1038                                                 }
1039                                         }
1040                                         if ( ber_peek_tag( ber, &len ) ==
1041                                                 LDAP_TAG_REFRESHDELETES )
1042                                         {
1043                                                 ber_scanf( ber, "b", &refreshDeletes );
1044                                         }
1045                                         ber_scanf( ber, "[W]", &syncUUIDs );
1046                                         ber_scanf( ber, /*"{"*/ "}" );
1047                                         if ( refreshDeletes ) {
1048                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1049                                                         &syncCookie.ctxcsn[m] );
1050                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1051                                         } else {
1052                                                 int i;
1053                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1054                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1055                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1056                                                 }
1057                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1058                                         }
1059                                         slap_sync_cookie_free( &syncCookie, 0 );
1060                                         break;
1061                                 default:
1062                                         Debug( LDAP_DEBUG_ANY,
1063                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1064                                                 si->si_ridtxt, (long) si_tag, 0 );
1065                                         ldap_memfree( retoid );
1066                                         ber_bvfree( retdata );
1067                                         continue;
1068                                 }
1069
1070                                 if ( !syncCookie.ctxcsn ) {
1071                                         match = 1;
1072                                 } else if ( !syncCookie_req.ctxcsn ) {
1073                                         match = -1;
1074                                         m = 0;
1075                                 } else {
1076                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1077                                 }
1078
1079                                 if ( match < 0 ) {
1080                                         if ( si->si_refreshPresent == 1 ) {
1081                                                 syncrepl_del_nonpresent( op, si, NULL,
1082                                                         &syncCookie.ctxcsn[m] );
1083                                         }
1084
1085                                         if ( syncCookie.ctxcsn )
1086                                         {
1087                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1088                                         }
1089                                 }
1090
1091                                 ldap_memfree( retoid );
1092                                 ber_bvfree( retdata );
1093                                 break;
1094
1095                         } else {
1096                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1097                                         "unknown intermediate response (%d)\n",
1098                                         si->si_ridtxt, rc, 0 );
1099                                 ldap_memfree( retoid );
1100                                 ber_bvfree( retdata );
1101                                 break;
1102                         }
1103                         break;
1104
1105                 default:
1106                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1107                                 "unknown message (0x%02lx)\n",
1108                                 si->si_ridtxt,
1109                                 (unsigned long)ldap_msgtype( msg ), 0 );
1110                         break;
1111
1112                 }
1113                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1114                         slap_sync_cookie_free( &syncCookie_req, 0 );
1115                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1116                         slap_sync_cookie_free( &syncCookie, 0 );
1117                 }
1118                 ldap_msgfree( msg );
1119                 msg = NULL;
1120                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1121                         slap_sync_cookie_free( &syncCookie, 0 );
1122                         slap_sync_cookie_free( &syncCookie_req, 0 );
1123                         return SYNC_PAUSED;
1124                 }
1125         }
1126
1127         if ( rc == -1 ) {
1128                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1129                 err = rc;
1130         }
1131
1132 done:
1133         if ( err != LDAP_SUCCESS ) {
1134                 Debug( LDAP_DEBUG_ANY,
1135                         "do_syncrep2: %s (%d) %s\n",
1136                         si->si_ridtxt, err, ldap_err2string( err ) );
1137         }
1138
1139         slap_sync_cookie_free( &syncCookie, 0 );
1140         slap_sync_cookie_free( &syncCookie_req, 0 );
1141
1142         if ( msg ) ldap_msgfree( msg );
1143
1144         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1145                 if ( si->si_conn ) {
1146                         connection_client_stop( si->si_conn );
1147                         si->si_conn = NULL;
1148                 }
1149                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1150                 si->si_ld = NULL;
1151         }
1152
1153         return rc;
1154 }
1155
1156 static void *
1157 do_syncrepl(
1158         void    *ctx,
1159         void    *arg )
1160 {
1161         struct re_s* rtask = arg;
1162         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1163         Connection conn = {0};
1164         OperationBuffer opbuf;
1165         Operation *op;
1166         int rc = LDAP_SUCCESS;
1167         int dostop = 0, do_setup = 0;
1168         ber_socket_t s;
1169         int i, defer = 1, fail = 0;
1170         Backend *be;
1171
1172         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1173
1174         if ( si == NULL )
1175                 return NULL;
1176
1177         /* Don't wait around if there's a previous session still running */
1178         if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex ))
1179                 return NULL;
1180
1181         switch( abs( si->si_type ) ) {
1182         case LDAP_SYNC_REFRESH_ONLY:
1183         case LDAP_SYNC_REFRESH_AND_PERSIST:
1184                 break;
1185         default:
1186                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1187                 return NULL;
1188         }
1189
1190         if ( slapd_shutdown ) {
1191                 if ( si->si_ld ) {
1192                         if ( si->si_conn ) {
1193                                 connection_client_stop( si->si_conn );
1194                                 si->si_conn = NULL;
1195                         }
1196                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1197                         si->si_ld = NULL;
1198                 }
1199                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1200                 return NULL;
1201         }
1202
1203         connection_fake_init( &conn, &opbuf, ctx );
1204         op = &opbuf.ob_op;
1205
1206         /* use global malloc for now */
1207         op->o_tmpmemctx = NULL;
1208         op->o_tmpmfuncs = &ch_mfuncs;
1209
1210         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1211         be = si->si_be;
1212
1213         /* Coordinate contextCSN updates with any syncprov overlays
1214          * in use. This may be complicated by the use of the glue
1215          * overlay.
1216          *
1217          * Typically there is a single syncprov mastering the entire
1218          * glued tree. In that case, our contextCSN updates should
1219          * go to the master DB.
1220          *
1221          * Alternatively, there may be individual syncprov overlays
1222          * on each glued branch. In that case, each syncprov only
1223          * knows about changes within its own branch. And so our
1224          * contextCSN updates should only go to the local DB.
1225          */
1226         if ( !si->si_wbe ) {
1227                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1228                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1229                 } else {
1230                         si->si_wbe = be;
1231                 }
1232         }
1233         if ( !si->si_schemachecking )
1234                 op->o_no_schema_check = 1;
1235
1236         /* Establish session, do search */
1237         if ( !si->si_ld ) {
1238                 si->si_refreshDelete = 0;
1239                 si->si_refreshPresent = 0;
1240
1241                 /* use main DB when retrieving contextCSN */
1242                 op->o_bd = si->si_wbe;
1243                 op->o_dn = op->o_bd->be_rootdn;
1244                 op->o_ndn = op->o_bd->be_rootndn;
1245                 rc = do_syncrep1( op, si );
1246         }
1247
1248 reload:
1249         /* Process results */
1250         if ( rc == LDAP_SUCCESS ) {
1251                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1252
1253                 /* use current DB */
1254                 op->o_bd = be;
1255                 op->o_dn = op->o_bd->be_rootdn;
1256                 op->o_ndn = op->o_bd->be_rootndn;
1257                 rc = do_syncrep2( op, si );
1258                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1259                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1260                         goto reload;
1261                 }
1262
1263                 /* We got deleted while running on cn=config */
1264                 if ( !si->si_ctype ) {
1265                         if ( si->si_conn )
1266                                 dostop = 1;
1267                         rc = -1;
1268                 }
1269
1270                 if ( rc != SYNC_PAUSED ) {
1271                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1272                                 /* If we succeeded, enable the connection for further listening.
1273                                  * If we failed, tear down the connection and reschedule.
1274                                  */
1275                                 if ( rc == LDAP_SUCCESS ) {
1276                                         if ( si->si_conn ) {
1277                                                 connection_client_enable( si->si_conn );
1278                                                 goto success;
1279                                         } else {
1280                                                 do_setup = 1;
1281                                         }
1282                                 } else if ( si->si_conn ) {
1283                                         dostop = 1;
1284                                 }
1285                         } else {
1286                                 if ( rc == -2 ) rc = 0;
1287                         }
1288                 }
1289         }
1290
1291         /* At this point, we have 5 cases:
1292          * 1) for any hard failure, give up and remove this task
1293          * 2) for ServerDown, reschedule this task to run later
1294          * 3) for threadpool pause, reschedule to run immediately
1295          * 4) for Refresh and Success, reschedule to run
1296          * 5) for Persist and Success, reschedule to defer
1297          */
1298         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1299
1300         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1301                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1302         }
1303
1304         if ( dostop ) {
1305                 connection_client_stop( si->si_conn );
1306                 si->si_conn = NULL;
1307         }
1308
1309         if ( rc == SYNC_PAUSED ) {
1310                 rtask->interval.tv_sec = 0;
1311                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1312                 rc = 0;
1313         } else if ( rc == LDAP_SUCCESS ) {
1314                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1315                         defer = 0;
1316                 }
1317                 rtask->interval.tv_sec = si->si_interval;
1318                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1319                 if ( si->si_retrynum ) {
1320                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1321                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1322                         }
1323                         si->si_retrynum[i] = RETRYNUM_TAIL;
1324                 }
1325         } else {
1326                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1327                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1328                                 break;
1329                 }
1330
1331                 if ( !si->si_ctype
1332                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1333                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1334                         fail = RETRYNUM_TAIL;
1335                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1336                         if ( si->si_retrynum[i] > 0 )
1337                                 si->si_retrynum[i]--;
1338                         fail = si->si_retrynum[i];
1339                         rtask->interval.tv_sec = si->si_retryinterval[i];
1340                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1341                         slap_wake_listener();
1342                 }
1343         }
1344
1345         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1346
1347         if ( do_setup )
1348                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1349
1350 success:
1351         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1352
1353         if ( rc ) {
1354                 if ( fail == RETRYNUM_TAIL ) {
1355                         Debug( LDAP_DEBUG_ANY,
1356                                 "do_syncrepl: %s quitting\n",
1357                                 si->si_ridtxt, 0, 0 );
1358                 } else if ( fail > 0 ) {
1359                         Debug( LDAP_DEBUG_ANY,
1360                                 "do_syncrepl: %s retrying (%d retries left)\n",
1361                                 si->si_ridtxt, fail, 0 );
1362                 } else {
1363                         Debug( LDAP_DEBUG_ANY,
1364                                 "do_syncrepl: %s retrying\n",
1365                                 si->si_ridtxt, 0, 0 );
1366                 }
1367         }
1368
1369         /* Do final delete cleanup */
1370         if ( !si->si_ctype ) {
1371                 cookie_state *cs = NULL;
1372                 syncinfo_t **sip;
1373
1374                 cs = be->be_syncinfo->si_cookieState;
1375                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1376                 *sip = si->si_next;
1377                 syncinfo_free( si, 0 );
1378                 if ( !be->be_syncinfo ) {
1379                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1380                         if ( cs ) {
1381                                 ch_free( cs->cs_sids );
1382                                 ber_bvarray_free( cs->cs_vals );
1383                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1384                                 ch_free( cs );
1385                         }
1386                 }
1387         }
1388         return NULL;
1389 }
1390
1391 static slap_verbmasks modops[] = {
1392         { BER_BVC("add"), LDAP_REQ_ADD },
1393         { BER_BVC("delete"), LDAP_REQ_DELETE },
1394         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1395         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1396         { BER_BVNULL, 0 }
1397 };
1398
1399 static Modifications *
1400 syncrepl_accesslog_mods(
1401         syncinfo_t *si,
1402         struct berval *vals
1403 )
1404 {
1405         char *colon;
1406         const char *text;
1407         AttributeDescription *ad;
1408         struct berval bv, bv2;
1409         short op;
1410         Modifications *mod = NULL, *modlist = NULL, **modtail;
1411         int i;
1412
1413         modtail = &modlist;
1414
1415         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1416                 ad = NULL;
1417                 bv = vals[i];
1418
1419                 colon = ber_bvchr( &bv, ':' );
1420                 if ( !colon ) {
1421                         /* Invalid */
1422                         continue;
1423                 }
1424
1425                 bv.bv_len = colon - bv.bv_val;
1426                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1427                         /* Invalid */
1428                         continue;
1429                 }
1430
1431                 /* Ignore dynamically generated attrs */
1432                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1433                         continue;
1434                 }
1435
1436                 /* Ignore excluded attrs */
1437                 if ( ldap_charray_inlist( si->si_exattrs,
1438                         ad->ad_type->sat_cname.bv_val ) )
1439                 {
1440                         continue;
1441                 }
1442
1443                 switch(colon[1]) {
1444                 case '+':       op = LDAP_MOD_ADD; break;
1445                 case '-':       op = LDAP_MOD_DELETE; break;
1446                 case '=':       op = LDAP_MOD_REPLACE; break;
1447                 case '#':       op = LDAP_MOD_INCREMENT; break;
1448                 default:        continue;
1449                 }
1450
1451                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1452                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1453                         mod->sml_flags = 0;
1454                         mod->sml_op = op;
1455                         mod->sml_next = NULL;
1456                         mod->sml_desc = ad;
1457                         mod->sml_type = ad->ad_cname;
1458                         mod->sml_values = NULL;
1459                         mod->sml_nvalues = NULL;
1460                         mod->sml_numvals = 0;
1461
1462                         *modtail = mod;
1463                         modtail = &mod->sml_next;
1464                 }
1465                 if ( colon[2] == ' ' ) {
1466                         bv.bv_val = colon + 3;
1467                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1468                         ber_dupbv( &bv2, &bv );
1469                         ber_bvarray_add( &mod->sml_values, &bv2 );
1470                         mod->sml_numvals++;
1471                 }
1472         }
1473         return modlist;
1474 }
1475
1476 static Modifications *
1477 syncrepl_changelog_mods(
1478         syncinfo_t *si,
1479         struct berval *vals
1480 )
1481 {
1482         return NULL;    /* FIXME */
1483 }
1484
1485 static int
1486 syncrepl_message_to_op(
1487         syncinfo_t      *si,
1488         Operation       *op,
1489         LDAPMessage     *msg
1490 )
1491 {
1492         BerElement      *ber = NULL;
1493         Modifications   *modlist = NULL;
1494         logschema *ls;
1495         SlapReply rs = { REP_RESULT };
1496         slap_callback cb = { NULL, null_callback, NULL, NULL };
1497
1498         const char      *text;
1499         char txtbuf[SLAP_TEXT_BUFLEN];
1500         size_t textlen = sizeof txtbuf;
1501
1502         struct berval   bdn, dn = BER_BVNULL, ndn;
1503         struct berval   bv, *bvals = NULL;
1504         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1505                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1506                 psup = BER_BVNULL, nsup = BER_BVNULL;
1507         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1508
1509         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1510                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1511                         "Message type should be entry (%d)",
1512                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1513                 return -1;
1514         }
1515
1516         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1517                 ls = &accesslog_sc;
1518         else
1519                 ls = &changelog_sc;
1520
1521         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1522
1523         if ( rc != LDAP_SUCCESS ) {
1524                 Debug( LDAP_DEBUG_ANY,
1525                         "syncrepl_message_to_op: %s dn get failed (%d)",
1526                         si->si_ridtxt, rc, 0 );
1527                 return rc;
1528         }
1529
1530         op->o_tag = LBER_DEFAULT;
1531         op->o_bd = si->si_wbe;
1532
1533         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1534                 == LDAP_SUCCESS ) {
1535                 if ( bv.bv_val == NULL )
1536                         break;
1537
1538                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1539                         bdn = bvals[0];
1540                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1541                         ber_dupbv( &op->o_req_dn, &dn );
1542                         ber_dupbv( &op->o_req_ndn, &ndn );
1543                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1544                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1545                         freeReqDn = 1;
1546                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1547                         int i = verb_to_mask( bvals[0].bv_val, modops );
1548                         if ( i < 0 ) {
1549                                 Debug( LDAP_DEBUG_ANY,
1550                                         "syncrepl_message_to_op: %s unknown op %s",
1551                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1552                                 ch_free( bvals );
1553                                 rc = -1;
1554                                 goto done;
1555                         }
1556                         op->o_tag = modops[i].mask;
1557                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1558                         /* Parse attribute into modlist */
1559                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1560                                 modlist = syncrepl_accesslog_mods( si, bvals );
1561                         } else {
1562                                 modlist = syncrepl_changelog_mods( si, bvals );
1563                         }
1564                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1565                         rdn = bvals[0];
1566                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1567                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1568                                 deleteOldRdn = 1;
1569                         }
1570                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1571                         sup = bvals[0];
1572                 } else if ( !ber_bvstrcasecmp( &bv,
1573                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1574                 {
1575                         slap_queue_csn( op, bvals );
1576                 }
1577                 ch_free( bvals );
1578         }
1579
1580         /* If we didn't get a mod type or a target DN, bail out */
1581         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1582                 rc = -1;
1583                 goto done;
1584         }
1585
1586         op->o_callback = &cb;
1587         slap_op_time( &op->o_time, &op->o_tincr );
1588
1589         switch( op->o_tag ) {
1590         case LDAP_REQ_ADD:
1591         case LDAP_REQ_MODIFY:
1592                 /* If we didn't get required data, bail */
1593                 if ( !modlist ) goto done;
1594
1595                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1596
1597                 if ( rc != LDAP_SUCCESS ) {
1598                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1599                                 "mods check (%s)\n",
1600                                 si->si_ridtxt, text, 0 );
1601                         goto done;
1602                 }
1603
1604                 if ( op->o_tag == LDAP_REQ_ADD ) {
1605                         Entry *e = entry_alloc();
1606                         op->ora_e = e;
1607                         op->ora_e->e_name = op->o_req_dn;
1608                         op->ora_e->e_nname = op->o_req_ndn;
1609                         freeReqDn = 0;
1610                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1611                         if( rc != LDAP_SUCCESS ) {
1612                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1613                                 "mods2entry (%s)\n",
1614                                         si->si_ridtxt, text, 0 );
1615                         } else {
1616                                 rc = op->o_bd->be_add( op, &rs );
1617                                 Debug( LDAP_DEBUG_SYNC,
1618                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1619                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1620                         }
1621                         if ( e == op->ora_e )
1622                                 be_entry_release_w( op, op->ora_e );
1623                 } else {
1624                         op->orm_modlist = modlist;
1625                         op->o_bd = si->si_wbe;
1626                         rc = op->o_bd->be_modify( op, &rs );
1627                         modlist = op->orm_modlist;
1628                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1629                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1630                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1631                         op->o_bd = si->si_be;
1632                 }
1633                 break;
1634         case LDAP_REQ_MODRDN:
1635                 if ( BER_BVISNULL( &rdn ) ) goto done;
1636
1637                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1638                         goto done;
1639                 }
1640                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1641                         goto done;
1642                 }
1643                 if ( !BER_BVISNULL( &sup ) ) {
1644                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1645                                 goto done;
1646                         }
1647                         op->orr_newSup = &psup;
1648                         op->orr_nnewSup = &nsup;
1649                 } else {
1650                         op->orr_newSup = NULL;
1651                         op->orr_nnewSup = NULL;
1652                 }
1653                 op->orr_newrdn = prdn;
1654                 op->orr_nnewrdn = nrdn;
1655                 op->orr_deleteoldrdn = deleteOldRdn;
1656                 op->orr_modlist = NULL;
1657                 if ( slap_modrdn2mods( op, &rs ) ) {
1658                         goto done;
1659                 }
1660
1661                 /* Append modlist for operational attrs */
1662                 {
1663                         Modifications *m;
1664
1665                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1666                                 ;
1667                         m->sml_next = modlist;
1668                         modlist = NULL;
1669                 }
1670                 rc = op->o_bd->be_modrdn( op, &rs );
1671                 slap_mods_free( op->orr_modlist, 1 );
1672                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1673                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1674                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1675                 break;
1676         case LDAP_REQ_DELETE:
1677                 rc = op->o_bd->be_delete( op, &rs );
1678                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1679                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1680                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1681                 break;
1682         }
1683 done:
1684         slap_graduate_commit_csn( op );
1685         op->o_bd = si->si_be;
1686         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1687         BER_BVZERO( &op->o_csn );
1688         if ( modlist ) {
1689                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1690         }
1691         if ( !BER_BVISNULL( &rdn ) ) {
1692                 if ( !BER_BVISNULL( &nsup ) ) {
1693                         ch_free( nsup.bv_val );
1694                 }
1695                 if ( !BER_BVISNULL( &psup ) ) {
1696                         ch_free( psup.bv_val );
1697                 }
1698                 if ( !BER_BVISNULL( &nrdn ) ) {
1699                         ch_free( nrdn.bv_val );
1700                 }
1701                 if ( !BER_BVISNULL( &prdn ) ) {
1702                         ch_free( prdn.bv_val );
1703                 }
1704         }
1705         if ( freeReqDn ) {
1706                 ch_free( op->o_req_ndn.bv_val );
1707                 ch_free( op->o_req_dn.bv_val );
1708         }
1709         ber_free( ber, 0 );
1710         return rc;
1711 }
1712
1713 static int
1714 syncrepl_message_to_entry(
1715         syncinfo_t      *si,
1716         Operation       *op,
1717         LDAPMessage     *msg,
1718         Modifications   **modlist,
1719         Entry                   **entry,
1720         int             syncstate
1721 )
1722 {
1723         Entry           *e = NULL;
1724         BerElement      *ber = NULL;
1725         Modifications   tmp;
1726         Modifications   *mod;
1727         Modifications   **modtail = modlist;
1728
1729         const char      *text;
1730         char txtbuf[SLAP_TEXT_BUFLEN];
1731         size_t textlen = sizeof txtbuf;
1732
1733         struct berval   bdn = BER_BVNULL, dn, ndn;
1734         int             rc, is_ctx;
1735
1736         *modlist = NULL;
1737
1738         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1739                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1740                         "Message type should be entry (%d)",
1741                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1742                 return -1;
1743         }
1744
1745         op->o_tag = LDAP_REQ_ADD;
1746
1747         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1748         if ( rc != LDAP_SUCCESS ) {
1749                 Debug( LDAP_DEBUG_ANY,
1750                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1751                         si->si_ridtxt, rc, 0 );
1752                 return rc;
1753         }
1754
1755         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1756                 /* NOTE: this could be done even before decoding the DN,
1757                  * although encoding errors wouldn't be detected */
1758                 rc = LDAP_SUCCESS;
1759                 goto done;
1760         }
1761
1762         if ( entry == NULL ) {
1763                 return -1;
1764         }
1765
1766         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1767         ber_dupbv( &op->o_req_dn, &dn );
1768         ber_dupbv( &op->o_req_ndn, &ndn );
1769         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1770         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1771
1772         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1773
1774         e = entry_alloc();
1775         e->e_name = op->o_req_dn;
1776         e->e_nname = op->o_req_ndn;
1777
1778         while ( ber_remaining( ber ) ) {
1779                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1780                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1781                 {
1782                         break;
1783                 }
1784
1785                 /* Drop all updates to the contextCSN of the context entry
1786                  * (ITS#4622, etc.)
1787                  */
1788                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1789                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1790                         ber_bvarray_free( tmp.sml_values );
1791                         continue;
1792                 }
1793
1794                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1795
1796                 mod->sml_op = LDAP_MOD_REPLACE;
1797                 mod->sml_flags = 0;
1798                 mod->sml_next = NULL;
1799                 mod->sml_desc = NULL;
1800                 mod->sml_type = tmp.sml_type;
1801                 mod->sml_values = tmp.sml_values;
1802                 mod->sml_nvalues = NULL;
1803                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1804
1805                 *modtail = mod;
1806                 modtail = &mod->sml_next;
1807         }
1808
1809         if ( *modlist == NULL ) {
1810                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1811                         si->si_ridtxt, 0, 0 );
1812                 rc = -1;
1813                 goto done;
1814         }
1815
1816         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1817
1818         if ( rc != LDAP_SUCCESS ) {
1819                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1820                         si->si_ridtxt, text, 0 );
1821                 goto done;
1822         }
1823
1824         /* Strip out dynamically generated attrs */
1825         for ( modtail = modlist; *modtail ; ) {
1826                 mod = *modtail;
1827                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1828                         *modtail = mod->sml_next;
1829                         slap_mod_free( &mod->sml_mod, 0 );
1830                         ch_free( mod );
1831                 } else {
1832                         modtail = &mod->sml_next;
1833                 }
1834         }
1835
1836         /* Strip out attrs in exattrs list */
1837         for ( modtail = modlist; *modtail ; ) {
1838                 mod = *modtail;
1839                 if ( ldap_charray_inlist( si->si_exattrs,
1840                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1841                 {
1842                         *modtail = mod->sml_next;
1843                         slap_mod_free( &mod->sml_mod, 0 );
1844                         ch_free( mod );
1845                 } else {
1846                         modtail = &mod->sml_next;
1847                 }
1848         }
1849
1850         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1851         if( rc != LDAP_SUCCESS ) {
1852                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1853                         si->si_ridtxt, text, 0 );
1854         }
1855
1856 done:
1857         ber_free( ber, 0 );
1858         if ( rc != LDAP_SUCCESS ) {
1859                 if ( e ) {
1860                         entry_free( e );
1861                         e = NULL;
1862                 }
1863         }
1864         if ( entry )
1865                 *entry = e;
1866
1867         return rc;
1868 }
1869
1870 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1871
1872 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1873  * entry if a previous refresh was interrupted before sending us a new
1874  * context state. We try to compare the new entry to the existing entry
1875  * and ignore the new entry if they are the same.
1876  *
1877  * Also, we may get an update where the entryDN has changed, due to
1878  * a ModDn on the provider. We detect this as well, so we can issue
1879  * the corresponding operation locally.
1880  *
1881  * In the case of a modify, we get a list of all the attributes
1882  * in the original entry. Rather than deleting the entry and re-adding it,
1883  * we issue a Modify request that deletes all the attributes and adds all
1884  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1885  * entry.
1886  *
1887  * We otherwise distinguish ModDN from Modify; in the case of
1888  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1889  * operational attributes from the entry, and do a regular ModDN.
1890  */
1891 typedef struct dninfo {
1892         Entry *new_entry;
1893         struct berval dn;
1894         struct berval ndn;
1895         int renamed;    /* Was an existing entry renamed? */
1896         int delOldRDN;  /* Was old RDN deleted? */
1897         Modifications **modlist;        /* the modlist we received */
1898         Modifications *mods;    /* the modlist we compared */
1899 } dninfo;
1900
1901 /* return 1 if inserted, 0 otherwise */
1902 static int
1903 avl_presentlist_insert(
1904         syncinfo_t* si,
1905         struct berval *syncUUID )
1906 {
1907         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1908
1909         syncuuid_bv->bv_len = syncUUID->bv_len;
1910         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1911         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1912         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1913
1914         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1915                 syncuuid_cmp, avl_dup_error ) )
1916         {
1917                 ch_free( syncuuid_bv );
1918                 return 0;
1919         }
1920
1921         return 1;
1922 }
1923
1924 static int
1925 syncrepl_entry(
1926         syncinfo_t* si,
1927         Operation *op,
1928         Entry* entry,
1929         Modifications** modlist,
1930         int syncstate,
1931         struct berval* syncUUID,
1932         struct berval* syncCSN )
1933 {
1934         Backend *be = op->o_bd;
1935         slap_callback   cb = { NULL, NULL, NULL, NULL };
1936         int syncuuid_inserted = 0;
1937         struct berval   syncUUID_strrep = BER_BVNULL;
1938
1939         SlapReply       rs_search = {REP_RESULT};
1940         SlapReply       rs_delete = {REP_RESULT};
1941         SlapReply       rs_add = {REP_RESULT};
1942         SlapReply       rs_modify = {REP_RESULT};
1943         Filter f = {0};
1944         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1945         int rc = LDAP_SUCCESS;
1946
1947         struct berval pdn = BER_BVNULL;
1948         dninfo dni = {0};
1949         int     retry = 1;
1950         int     freecsn = 1;
1951
1952         Debug( LDAP_DEBUG_SYNC,
1953                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1954                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1955
1956         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1957                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
1958                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
1959                 }
1960         }
1961
1962         if ( syncstate == LDAP_SYNC_PRESENT ) {
1963                 return 0;
1964         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1965                 if ( entry == NULL ) {
1966                         return 0;
1967                 }
1968         }
1969
1970         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1971         if ( syncstate != LDAP_SYNC_DELETE ) {
1972                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1973
1974                 if ( a == NULL ) {
1975                         /* add if missing */
1976                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1977                                 &syncUUID_strrep, syncUUID );
1978
1979                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1980                         /* replace only if necessary */
1981                         if ( a->a_nvals != a->a_vals ) {
1982                                 ber_memfree( a->a_nvals[0].bv_val );
1983                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1984                         }
1985                         ber_memfree( a->a_vals[0].bv_val );
1986                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1987                 }
1988         }
1989
1990         f.f_choice = LDAP_FILTER_EQUALITY;
1991         f.f_ava = &ava;
1992         ava.aa_desc = slap_schema.si_ad_entryUUID;
1993         ava.aa_value = *syncUUID;
1994
1995         if ( syncuuid_inserted ) {
1996                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1997                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1998         }
1999         op->ors_filter = &f;
2000
2001         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2002         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2003                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2004         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2005         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2006                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2007         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2008         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2009
2010         op->o_tag = LDAP_REQ_SEARCH;
2011         op->ors_scope = LDAP_SCOPE_SUBTREE;
2012         op->ors_deref = LDAP_DEREF_NEVER;
2013
2014         /* get the entry for this UUID */
2015         op->o_req_dn = si->si_base;
2016         op->o_req_ndn = si->si_base;
2017
2018         op->o_time = slap_get_time();
2019         op->ors_tlimit = SLAP_NO_LIMIT;
2020         op->ors_slimit = 1;
2021
2022         op->ors_attrs = slap_anlist_all_attributes;
2023         op->ors_attrsonly = 0;
2024
2025         /* set callback function */
2026         op->o_callback = &cb;
2027         cb.sc_response = dn_callback;
2028         cb.sc_private = &dni;
2029         dni.new_entry = entry;
2030         dni.modlist = modlist;
2031
2032         if ( limits_check( op, &rs_search ) == 0 ) {
2033                 rc = be->be_search( op, &rs_search );
2034                 Debug( LDAP_DEBUG_SYNC,
2035                                 "syncrepl_entry: %s be_search (%d)\n",
2036                                 si->si_ridtxt, rc, 0 );
2037         }
2038
2039         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2040                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2041         }
2042
2043         cb.sc_response = null_callback;
2044         cb.sc_private = si;
2045
2046         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2047                 Debug( LDAP_DEBUG_SYNC,
2048                                 "syncrepl_entry: %s %s\n",
2049                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2050         } else {
2051                 Debug( LDAP_DEBUG_SYNC,
2052                                 "syncrepl_entry: %s %s\n",
2053                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2054         }
2055
2056         assert( BER_BVISNULL( &op->o_csn ) );
2057         if ( syncCSN ) {
2058                 slap_queue_csn( op, syncCSN );
2059         }
2060
2061         slap_op_time( &op->o_time, &op->o_tincr );
2062         switch ( syncstate ) {
2063         case LDAP_SYNC_ADD:
2064         case LDAP_SYNC_MODIFY:
2065                 if ( BER_BVISNULL( &op->o_csn ))
2066                 {
2067
2068                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2069                         if ( a ) {
2070                                 /* FIXME: op->o_csn is assumed to be
2071                                  * on the thread's slab; this needs
2072                                  * to be cleared ASAP.
2073                                  * What happens if already present?
2074                                  */
2075                                 assert( BER_BVISNULL( &op->o_csn ) );
2076                                 op->o_csn = a->a_vals[0];
2077                                 freecsn = 0;
2078                         }
2079                 }
2080 retry_add:;
2081                 if ( BER_BVISNULL( &dni.dn ) ) {
2082
2083                         op->o_req_dn = entry->e_name;
2084                         op->o_req_ndn = entry->e_nname;
2085                         op->o_tag = LDAP_REQ_ADD;
2086                         op->ora_e = entry;
2087                         op->o_bd = si->si_wbe;
2088
2089                         rc = op->o_bd->be_add( op, &rs_add );
2090                         Debug( LDAP_DEBUG_SYNC,
2091                                         "syncrepl_entry: %s be_add (%d)\n",
2092                                         si->si_ridtxt, rc, 0 );
2093                         switch ( rs_add.sr_err ) {
2094                         case LDAP_SUCCESS:
2095                                 if ( op->ora_e == entry ) {
2096                                         be_entry_release_w( op, entry );
2097                                 }
2098                                 entry = NULL;
2099                                 break;
2100
2101                         case LDAP_REFERRAL:
2102                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2103                          * only if the suffix entry is not present */
2104                         case LDAP_NO_SUCH_OBJECT:
2105                                 rc = syncrepl_add_glue( op, entry );
2106                                 entry = NULL;
2107                                 break;
2108
2109                         /* if an entry was added via syncrepl_add_glue(),
2110                          * it likely has no entryUUID, so the previous
2111                          * be_search() doesn't find it.  In this case,
2112                          * give syncrepl a chance to modify it. Also
2113                          * allow for entries that were recreated with the
2114                          * same DN but a different entryUUID.
2115                          */
2116                         case LDAP_ALREADY_EXISTS:
2117                                 if ( retry ) {
2118                                         Operation       op2 = *op;
2119                                         SlapReply       rs2 = { 0 };
2120                                         slap_callback   cb2 = { 0 };
2121
2122                                         op2.o_bd = be;
2123                                         op2.o_tag = LDAP_REQ_SEARCH;
2124                                         op2.o_req_dn = entry->e_name;
2125                                         op2.o_req_ndn = entry->e_nname;
2126                                         op2.ors_scope = LDAP_SCOPE_BASE;
2127                                         op2.ors_deref = LDAP_DEREF_NEVER;
2128                                         op2.ors_attrs = slap_anlist_all_attributes;
2129                                         op2.ors_attrsonly = 0;
2130                                         op2.ors_limit = NULL;
2131                                         op2.ors_slimit = 1;
2132                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2133
2134                                         f.f_choice = LDAP_FILTER_PRESENT;
2135                                         f.f_desc = slap_schema.si_ad_objectClass;
2136                                         op2.ors_filter = &f;
2137                                         op2.ors_filterstr = generic_filterstr;
2138
2139                                         op2.o_callback = &cb2;
2140                                         cb2.sc_response = dn_callback;
2141                                         cb2.sc_private = &dni;
2142
2143                                         rc = be->be_search( &op2, &rs2 );
2144                                         if ( rc ) goto done;
2145
2146                                         retry = 0;
2147                                         slap_op_time( &op->o_time, &op->o_tincr );
2148                                         goto retry_add;
2149                                 }
2150                                 /* FALLTHRU */
2151
2152                         default:
2153                                 Debug( LDAP_DEBUG_ANY,
2154                                         "syncrepl_entry: %s be_add failed (%d)\n",
2155                                         si->si_ridtxt, rs_add.sr_err, 0 );
2156                                 break;
2157                         }
2158                         op->o_bd = be;
2159                         goto done;
2160                 }
2161                 /* FALLTHRU */
2162                 op->o_req_dn = dni.dn;
2163                 op->o_req_ndn = dni.ndn;
2164                 if ( dni.renamed ) {
2165                         struct berval noldp, newp, nnewp;
2166
2167                         op->o_tag = LDAP_REQ_MODRDN;
2168                         dnRdn( &entry->e_name, &op->orr_newrdn );
2169                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2170
2171                         dnParent( &dni.ndn, &noldp );
2172                         dnParent( &entry->e_nname, &nnewp );
2173                         if ( !dn_match( &noldp, &nnewp ) ) {
2174                                 dnParent( &entry->e_name, &newp );
2175                                 op->orr_newSup = &newp;
2176                                 op->orr_nnewSup = &nnewp;
2177                         } else {
2178                                 op->orr_newSup = NULL;
2179                                 op->orr_nnewSup = NULL;
2180                         }
2181                         op->orr_deleteoldrdn = dni.delOldRDN;
2182                         op->orr_modlist = NULL;
2183                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2184                                 goto done;
2185                         }
2186
2187                         /* RDNs must be NUL-terminated for back-ldap */
2188                         noldp = op->orr_newrdn;
2189                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2190                         noldp = op->orr_nnewrdn;
2191                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2192
2193                         /* Setup opattrs too */
2194                         {
2195                                 static AttributeDescription *nullattr = NULL;
2196                                 static AttributeDescription **const opattrs[] = {
2197                                         &slap_schema.si_ad_entryCSN,
2198                                         &slap_schema.si_ad_modifiersName,
2199                                         &slap_schema.si_ad_modifyTimestamp,
2200                                         &nullattr
2201                                 };
2202                                 AttributeDescription *opattr;
2203                                 Modifications *mod, **modtail, **ml;
2204                                 int i;
2205
2206                                 for ( mod = op->orr_modlist;
2207                                         mod->sml_next;
2208                                         mod = mod->sml_next )
2209                                         ;
2210                                 modtail = &mod->sml_next;
2211
2212                                 /* pull mod off incoming modlist, append to orr_modlist */
2213                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2214                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2215                                         {
2216                                                 if ( (*ml)->sml_desc == opattr ) {
2217                                                         mod = *ml;
2218                                                         *ml = mod->sml_next;
2219                                                         mod->sml_next = NULL;
2220                                                         *modtail = mod;
2221                                                         modtail = &mod->sml_next;
2222                                                         break;
2223                                                 }
2224                                         }
2225                                 }
2226                         }
2227                         op->o_bd = si->si_wbe;
2228                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2229                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2230                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2231
2232                         slap_mods_free( op->orr_modlist, 1 );
2233                         Debug( LDAP_DEBUG_SYNC,
2234                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2235                                         si->si_ridtxt, rc, 0 );
2236                         op->o_bd = be;
2237                         goto done;
2238                 }
2239                 if ( dni.mods ) {
2240                         op->o_tag = LDAP_REQ_MODIFY;
2241                         op->orm_modlist = dni.mods;
2242                         op->orm_no_opattrs = 1;
2243                         op->o_bd = si->si_wbe;
2244
2245                         rc = op->o_bd->be_modify( op, &rs_modify );
2246                         slap_mods_free( op->orm_modlist, 1 );
2247                         op->orm_no_opattrs = 0;
2248                         Debug( LDAP_DEBUG_SYNC,
2249                                         "syncrepl_entry: %s be_modify (%d)\n",
2250                                         si->si_ridtxt, rc, 0 );
2251                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2252                                 Debug( LDAP_DEBUG_ANY,
2253                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2254                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2255                         }
2256                         op->o_bd = be;
2257                 } else {
2258                         Debug( LDAP_DEBUG_SYNC,
2259                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2260                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2261                 }
2262                 goto done;
2263         case LDAP_SYNC_DELETE :
2264                 if ( !BER_BVISNULL( &dni.dn ) ) {
2265                         op->o_req_dn = dni.dn;
2266                         op->o_req_ndn = dni.ndn;
2267                         op->o_tag = LDAP_REQ_DELETE;
2268                         op->o_bd = si->si_wbe;
2269                         rc = op->o_bd->be_delete( op, &rs_delete );
2270                         Debug( LDAP_DEBUG_SYNC,
2271                                         "syncrepl_entry: %s be_delete (%d)\n",
2272                                         si->si_ridtxt, rc, 0 );
2273
2274                         while ( rs_delete.sr_err == LDAP_SUCCESS
2275                                 && op->o_delete_glue_parent ) {
2276                                 op->o_delete_glue_parent = 0;
2277                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2278                                         slap_callback cb = { NULL };
2279                                         cb.sc_response = slap_null_cb;
2280                                         dnParent( &op->o_req_ndn, &pdn );
2281                                         op->o_req_dn = pdn;
2282                                         op->o_req_ndn = pdn;
2283                                         op->o_callback = &cb;
2284                                         op->o_bd->be_delete( op, &rs_delete );
2285                                 } else {
2286                                         break;
2287                                 }
2288                         }
2289                         op->o_bd = be;
2290                 }
2291                 goto done;
2292
2293         default :
2294                 Debug( LDAP_DEBUG_ANY,
2295                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2296                 goto done;
2297         }
2298
2299 done:
2300         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2301                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2302                 BER_BVZERO( &syncUUID_strrep );
2303         }
2304         if ( !BER_BVISNULL( &dni.ndn ) ) {
2305                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2306         }
2307         if ( !BER_BVISNULL( &dni.dn ) ) {
2308                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2309         }
2310         if ( entry ) {
2311                 entry_free( entry );
2312         }
2313         if ( syncCSN ) {
2314                 slap_graduate_commit_csn( op );
2315         }
2316         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2317                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2318         }
2319         BER_BVZERO( &op->o_csn );
2320         return rc;
2321 }
2322
2323 static struct berval gcbva[] = {
2324         BER_BVC("top"),
2325         BER_BVC("glue"),
2326         BER_BVNULL
2327 };
2328
2329 #define NP_DELETE_ONE   2
2330
2331 static void
2332 syncrepl_del_nonpresent(
2333         Operation *op,
2334         syncinfo_t *si,
2335         BerVarray uuids,
2336         struct berval *cookiecsn )
2337 {
2338         Backend* be = op->o_bd;
2339         slap_callback   cb = { NULL };
2340         SlapReply       rs_search = {REP_RESULT};
2341         SlapReply       rs_delete = {REP_RESULT};
2342         SlapReply       rs_modify = {REP_RESULT};
2343         struct nonpresent_entry *np_list, *np_prev;
2344         int rc;
2345         AttributeName   an[2];
2346
2347         struct berval pdn = BER_BVNULL;
2348         struct berval csn;
2349
2350         op->o_req_dn = si->si_base;
2351         op->o_req_ndn = si->si_base;
2352
2353         cb.sc_response = nonpresent_callback;
2354         cb.sc_private = si;
2355
2356         op->o_callback = &cb;
2357         op->o_tag = LDAP_REQ_SEARCH;
2358         op->ors_scope = si->si_scope;
2359         op->ors_deref = LDAP_DEREF_NEVER;
2360         op->o_time = slap_get_time();
2361         op->ors_tlimit = SLAP_NO_LIMIT;
2362
2363
2364         if ( uuids ) {
2365                 Filter uf;
2366                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2367                 int i;
2368
2369                 op->ors_attrsonly = 1;
2370                 op->ors_attrs = slap_anlist_no_attrs;
2371                 op->ors_limit = NULL;
2372                 op->ors_filter = &uf;
2373
2374                 uf.f_ava = &eq;
2375                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2376                 uf.f_next = NULL;
2377                 uf.f_choice = LDAP_FILTER_EQUALITY;
2378                 si->si_refreshDelete |= NP_DELETE_ONE;
2379
2380                 for (i=0; uuids[i].bv_val; i++) {
2381                         op->ors_slimit = 1;
2382                         uf.f_av_value = uuids[i];
2383                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2384                         rc = be->be_search( op, &rs_search );
2385                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2386                 }
2387                 si->si_refreshDelete ^= NP_DELETE_ONE;
2388         } else {
2389                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2390                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2391                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2392                 op->ors_attrs = an;
2393                 op->ors_slimit = SLAP_NO_LIMIT;
2394                 op->ors_attrsonly = 0;
2395                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2396                 op->ors_filterstr = si->si_filterstr;
2397                 op->o_nocaching = 1;
2398
2399                 if ( limits_check( op, &rs_search ) == 0 ) {
2400                         rc = be->be_search( op, &rs_search );
2401                 }
2402                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2403         }
2404
2405         op->o_nocaching = 0;
2406
2407         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2408
2409                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2410                         csn = *cookiecsn;
2411                 } else {
2412                         csn = si->si_syncCookie.ctxcsn[0];
2413                 }
2414
2415                 op->o_bd = si->si_wbe;
2416                 slap_queue_csn( op, &csn );
2417
2418                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2419                 while ( np_list != NULL ) {
2420                         LDAP_LIST_REMOVE( np_list, npe_link );
2421                         np_prev = np_list;
2422                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2423                         op->o_tag = LDAP_REQ_DELETE;
2424                         op->o_callback = &cb;
2425                         cb.sc_response = null_callback;
2426                         cb.sc_private = si;
2427                         op->o_req_dn = *np_prev->npe_name;
2428                         op->o_req_ndn = *np_prev->npe_nname;
2429                         rc = op->o_bd->be_delete( op, &rs_delete );
2430                         Debug( LDAP_DEBUG_SYNC,
2431                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2432                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2433
2434                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2435                                 Modifications mod1, mod2;
2436                                 mod1.sml_op = LDAP_MOD_REPLACE;
2437                                 mod1.sml_flags = 0;
2438                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2439                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2440                                 mod1.sml_numvals = 2;
2441                                 mod1.sml_values = &gcbva[0];
2442                                 mod1.sml_nvalues = NULL;
2443                                 mod1.sml_next = &mod2;
2444
2445                                 mod2.sml_op = LDAP_MOD_REPLACE;
2446                                 mod2.sml_flags = 0;
2447                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2448                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2449                                 mod2.sml_numvals = 1;
2450                                 mod2.sml_values = &gcbva[1];
2451                                 mod2.sml_nvalues = NULL;
2452                                 mod2.sml_next = NULL;
2453
2454                                 op->o_tag = LDAP_REQ_MODIFY;
2455                                 op->orm_modlist = &mod1;
2456
2457                                 rc = op->o_bd->be_modify( op, &rs_modify );
2458                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2459                         }
2460
2461                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2462                                         op->o_delete_glue_parent ) {
2463                                 op->o_delete_glue_parent = 0;
2464                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2465                                         slap_callback cb = { NULL };
2466                                         cb.sc_response = slap_null_cb;
2467                                         dnParent( &op->o_req_ndn, &pdn );
2468                                         op->o_req_dn = pdn;
2469                                         op->o_req_ndn = pdn;
2470                                         op->o_callback = &cb;
2471                                         /* give it a root privil ? */
2472                                         op->o_bd->be_delete( op, &rs_delete );
2473                                 } else {
2474                                         break;
2475                                 }
2476                         }
2477
2478                         op->o_delete_glue_parent = 0;
2479
2480                         ber_bvfree( np_prev->npe_name );
2481                         ber_bvfree( np_prev->npe_nname );
2482                         ch_free( np_prev );
2483
2484                         if ( slapd_shutdown ) {
2485                                 break;
2486                         }
2487                 }
2488
2489                 slap_graduate_commit_csn( op );
2490                 op->o_bd = be;
2491
2492                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2493                 BER_BVZERO( &op->o_csn );
2494         }
2495
2496         return;
2497 }
2498
2499 int
2500 syncrepl_add_glue(
2501         Operation* op,
2502         Entry *e )
2503 {
2504         Backend *be = op->o_bd;
2505         slap_callback cb = { NULL };
2506         Attribute       *a;
2507         int     rc;
2508         int suffrdns;
2509         int i;
2510         struct berval dn = BER_BVNULL;
2511         struct berval ndn = BER_BVNULL;
2512         Entry   *glue;
2513         SlapReply       rs_add = {REP_RESULT};
2514         struct berval   ptr, nptr;
2515         char            *comma;
2516
2517         op->o_tag = LDAP_REQ_ADD;
2518         op->o_callback = &cb;
2519         cb.sc_response = null_callback;
2520         cb.sc_private = NULL;
2521
2522         dn = e->e_name;
2523         ndn = e->e_nname;
2524
2525         /* count RDNs in suffix */
2526         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2527                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2528                         comma++;
2529                         ptr.bv_len -= comma - ptr.bv_val;
2530                         ptr.bv_val = comma;
2531                         i++;
2532                 }
2533                 suffrdns = i;
2534         } else {
2535                 /* suffix is "" */
2536                 suffrdns = 0;
2537         }
2538
2539         /* Start with BE suffix */
2540         ptr = dn;
2541         for ( i = 0; i < suffrdns; i++ ) {
2542                 comma = ber_bvrchr( &ptr, ',' );
2543                 if ( comma != NULL ) {
2544                         ptr.bv_len = comma - ptr.bv_val;
2545                 } else {
2546                         ptr.bv_len = 0;
2547                         break;
2548                 }
2549         }
2550
2551         if ( !BER_BVISEMPTY( &ptr ) ) {
2552                 dn.bv_len -= ptr.bv_len + 1;
2553                 dn.bv_val += ptr.bv_len + 1;
2554         }
2555
2556         /* the normalizedDNs are always the same length, no counting
2557          * required.
2558          */
2559         nptr = ndn;
2560         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2561                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2562                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2563
2564                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2565
2566         } else {
2567                 nptr.bv_len = 0;
2568         }
2569
2570         while ( ndn.bv_val > e->e_nname.bv_val ) {
2571                 glue = entry_alloc();
2572                 ber_dupbv( &glue->e_name, &dn );
2573                 ber_dupbv( &glue->e_nname, &ndn );
2574
2575                 a = attr_alloc( slap_schema.si_ad_objectClass );
2576
2577                 a->a_numvals = 2;
2578                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2579                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2580                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2581                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2582
2583                 a->a_nvals = a->a_vals;
2584
2585                 a->a_next = glue->e_attrs;
2586                 glue->e_attrs = a;
2587
2588                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2589
2590                 a->a_numvals = 1;
2591                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2592                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2593                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2594
2595                 a->a_nvals = a->a_vals;
2596
2597                 a->a_next = glue->e_attrs;
2598                 glue->e_attrs = a;
2599
2600                 op->o_req_dn = glue->e_name;
2601                 op->o_req_ndn = glue->e_nname;
2602                 op->ora_e = glue;
2603                 rc = be->be_add ( op, &rs_add );
2604                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2605                         if ( op->ora_e == glue )
2606                                 be_entry_release_w( op, glue );
2607                 } else {
2608                 /* incl. ALREADY EXIST */
2609                         entry_free( glue );
2610                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2611                                 entry_free( e );
2612                                 return rc;
2613                         }
2614                 }
2615
2616                 /* Move to next child */
2617                 comma = ber_bvrchr( &ptr, ',' );
2618                 if ( comma == NULL ) {
2619                         break;
2620                 }
2621                 ptr.bv_len = comma - ptr.bv_val;
2622
2623                 dn.bv_val = ++comma;
2624                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2625
2626                 comma = ber_bvrchr( &nptr, ',' );
2627                 assert( comma != NULL );
2628                 nptr.bv_len = comma - nptr.bv_val;
2629
2630                 ndn.bv_val = ++comma;
2631                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2632         }
2633
2634         op->o_req_dn = e->e_name;
2635         op->o_req_ndn = e->e_nname;
2636         op->ora_e = e;
2637         rc = be->be_add ( op, &rs_add );
2638         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2639                 if ( op->ora_e == e )
2640                         be_entry_release_w( op, e );
2641         } else {
2642                 entry_free( e );
2643         }
2644
2645         return rc;
2646 }
2647
2648 static int
2649 syncrepl_updateCookie(
2650         syncinfo_t *si,
2651         Operation *op,
2652         struct berval *pdn,
2653         struct sync_cookie *syncCookie )
2654 {
2655         Backend *be = op->o_bd;
2656         Modifications mod;
2657         struct berval first = BER_BVNULL;
2658
2659         int rc, i, j, len;
2660
2661         slap_callback cb = { NULL };
2662         SlapReply       rs_modify = {REP_RESULT};
2663
2664         mod.sml_op = LDAP_MOD_REPLACE;
2665         mod.sml_desc = slap_schema.si_ad_contextCSN;
2666         mod.sml_type = mod.sml_desc->ad_cname;
2667         mod.sml_nvalues = NULL;
2668         mod.sml_next = NULL;
2669
2670         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2671
2672         /* clone the cookieState CSNs so we can Replace the whole thing */
2673         mod.sml_numvals = si->si_cookieState->cs_num;
2674         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2675         for ( i=0; i<mod.sml_numvals; i++ )
2676                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2677         BER_BVZERO( &mod.sml_values[i] );
2678
2679         /* find any CSNs in the syncCookie that are newer than the cookieState */
2680         for ( i=0; i<syncCookie->numcsns; i++ ) {
2681                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2682                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2683                                 continue;
2684                         len = syncCookie->ctxcsn[i].bv_len;
2685                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2686                                 len = si->si_cookieState->cs_vals[j].bv_len;
2687                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2688                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2689                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2690                                 if ( BER_BVISNULL( &first ))
2691                                         first = syncCookie->ctxcsn[i];
2692                         }
2693                         break;
2694                 }
2695                 /* there was no match for this SID, it's a new CSN */
2696                 if ( j == si->si_cookieState->cs_num ) {
2697                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2698                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2699                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2700                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2701                         if ( BER_BVISNULL( &first ))
2702                                 first = syncCookie->ctxcsn[i];
2703                 }
2704         }
2705         /* Should never happen, ITS#5065 */
2706         if ( BER_BVISNULL( &first )) {
2707                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2708                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2709                 return 0;
2710         }
2711         op->o_bd = si->si_wbe;
2712         slap_queue_csn( op, &first );
2713
2714         op->o_tag = LDAP_REQ_MODIFY;
2715
2716         cb.sc_response = null_callback;
2717         cb.sc_private = si;
2718
2719         op->o_callback = &cb;
2720         op->o_req_dn = op->o_bd->be_suffix[0];
2721         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2722
2723         /* update contextCSN */
2724         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2725
2726         op->orm_modlist = &mod;
2727         op->orm_no_opattrs = 1;
2728         rc = op->o_bd->be_modify( op, &rs_modify );
2729         op->orm_no_opattrs = 0;
2730         op->o_msgid = 0;
2731
2732         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2733                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2734                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2735                 /* If we replaced any old values */
2736                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2737                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2738                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2739                                                 &mod.sml_values[i] );
2740                 }
2741                 /* Handle any added values */
2742                 if ( i < mod.sml_numvals ) {
2743                         si->si_cookieState->cs_num = mod.sml_numvals;
2744                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2745                         free( si->si_cookieState->cs_sids );
2746                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2747                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2748                 }
2749
2750                 si->si_cookieState->cs_age++;
2751                 si->si_cookieAge = si->si_cookieState->cs_age;
2752         } else {
2753                 Debug( LDAP_DEBUG_ANY,
2754                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2755                         si->si_ridtxt, rs_modify.sr_err, 0 );
2756         }
2757         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2758
2759         op->o_bd = be;
2760         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2761         BER_BVZERO( &op->o_csn );
2762         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2763         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2764
2765         return rc;
2766 }
2767
2768 static void
2769 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2770         Modifications ***mret, Modifications ***mcur )
2771 {
2772         int i, j;
2773         Modifications *mod, **modtail;
2774
2775         modtail = *mret;
2776
2777         if ( old ) {
2778                 int n, o, nn, no;
2779                 struct berval **adds, **dels;
2780                 /* count old and new */
2781                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2782                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2783
2784                 /* there MUST be both old and new values */
2785                 assert( o != 0 );
2786                 assert( n != 0 );
2787                 j = 0;
2788
2789                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2790                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2791
2792                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2793                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2794
2795                 nn = n; no = o;
2796
2797                 for ( i=0; i<o; i++ ) {
2798                         for ( j=0; j<n; j++ ) {
2799                                 if ( !adds[j] )
2800                                         continue;
2801                                 if ( bvmatch( dels[i], adds[j] ) ) {
2802                                         no--;
2803                                         nn--;
2804                                         adds[j] = NULL;
2805                                         dels[i] = NULL;
2806                                         break;
2807                                 }
2808                         }
2809                 }
2810
2811                 i = j;
2812                 /* all old values were deleted, just use the replace op */
2813                 if ( no == o ) {
2814                         i = j-1;
2815                 } else if ( no ) {
2816                 /* delete some values */
2817                         mod = ch_malloc( sizeof( Modifications ) );
2818                         mod->sml_op = LDAP_MOD_DELETE;
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 = no;
2823                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2824                         if ( old->a_vals != old->a_nvals ) {
2825                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2826                         } else {
2827                                 mod->sml_nvalues = NULL;
2828                         }
2829                         j = 0;
2830                         for ( i = 0; i < o; i++ ) {
2831                                 if ( !dels[i] ) continue;
2832                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2833                                 if ( mod->sml_nvalues ) {
2834                                         ber_dupbv( &mod->sml_nvalues[j], &old->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( dels, op->o_tmpmemctx );
2847                 /* some values were added */
2848                 if ( nn && no < o ) {
2849                         mod = ch_malloc( sizeof( Modifications ) );
2850                         mod->sml_op = LDAP_MOD_ADD;
2851                         mod->sml_flags = 0;
2852                         mod->sml_desc = old->a_desc;
2853                         mod->sml_type = mod->sml_desc->ad_cname;
2854                         mod->sml_numvals = nn;
2855                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2856                         if ( old->a_vals != old->a_nvals ) {
2857                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2858                         } else {
2859                                 mod->sml_nvalues = NULL;
2860                         }
2861                         j = 0;
2862                         for ( i = 0; i < n; i++ ) {
2863                                 if ( !adds[i] ) continue;
2864                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2865                                 if ( mod->sml_nvalues ) {
2866                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2867                                 }
2868                                 j++;
2869                         }
2870                         BER_BVZERO( &mod->sml_values[j] );
2871                         if ( mod->sml_nvalues ) {
2872                                 BER_BVZERO( &mod->sml_nvalues[j] );
2873                         }
2874                         *modtail = mod;
2875                         modtail = &mod->sml_next;
2876                         i = j;
2877                 }
2878                 op->o_tmpfree( adds, op->o_tmpmemctx );
2879         } else {
2880                 /* new attr, just use the new mod */
2881                 i = 0;
2882                 j = 1;
2883         }
2884         /* advance to next element */
2885         mod = **mcur;
2886         if ( mod ) {
2887                 if ( i != j ) {
2888                         **mcur = mod->sml_next;
2889                         *modtail = mod;
2890                         modtail = &mod->sml_next;
2891                 } else {
2892                         *mcur = &mod->sml_next;
2893                 }
2894         }
2895         *mret = modtail;
2896 }
2897
2898 static int
2899 dn_callback(
2900         Operation*      op,
2901         SlapReply*      rs )
2902 {
2903         dninfo *dni = op->o_callback->sc_private;
2904
2905         if ( rs->sr_type == REP_SEARCH ) {
2906                 if ( !BER_BVISNULL( &dni->dn ) ) {
2907                         Debug( LDAP_DEBUG_ANY,
2908                                 "dn_callback : consistency error - "
2909                                 "entryUUID is not unique\n", 0, 0, 0 );
2910                 } else {
2911                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2912                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2913                         /* If there is a new entry, see if it differs from the old.
2914                          * We compare the non-normalized values so that cosmetic changes
2915                          * in the provider are always propagated.
2916                          */
2917                         if ( dni->new_entry ) {
2918                                 Modifications **modtail, **ml;
2919                                 Attribute *old, *new;
2920                                 int is_ctx;
2921
2922                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2923                                         &op->o_bd->be_nsuffix[0] );
2924
2925                                 /* Did the DN change?
2926                                  */
2927                                 if ( !dn_match( &rs->sr_entry->e_name,
2928                                                 &dni->new_entry->e_name ) )
2929                                 {
2930                                         struct berval oldRDN, oldVal;
2931                                         AttributeDescription *ad = NULL;
2932                                         Attribute *a;
2933
2934                                         dni->renamed = 1;
2935                                         /* See if the oldRDN was deleted */
2936                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2937                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2938                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2939                                                 oldRDN.bv_val );
2940                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2941                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2942                                         a = attr_find( dni->new_entry->e_attrs, ad );
2943                                         if ( !a || attr_valfind( a,
2944                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2945                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2946                                                 SLAP_MR_VALUE_OF_SYNTAX,
2947                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
2948                                         {
2949                                                 dni->delOldRDN = 1;
2950                                         }
2951                                         /* OK, this was just a modDN, we're done */
2952                                         return LDAP_SUCCESS;
2953                                 }
2954
2955                                 modtail = &dni->mods;
2956                                 ml = dni->modlist;
2957
2958                                 /* Make sure new entry is actually newer than old entry */
2959                                 old = attr_find( rs->sr_entry->e_attrs,
2960                                         slap_schema.si_ad_entryCSN );
2961                                 new = attr_find( dni->new_entry->e_attrs,
2962                                         slap_schema.si_ad_entryCSN );
2963                                 if ( new && old ) {
2964                                         int rc, len = old->a_vals[0].bv_len;
2965                                         if ( len > new->a_vals[0].bv_len )
2966                                                 len = new->a_vals[0].bv_len;
2967                                         rc = memcmp( old->a_vals[0].bv_val,
2968                                                 new->a_vals[0].bv_val, len );
2969                                         if ( rc > 0 ) {
2970                                                 Debug( LDAP_DEBUG_SYNC,
2971                                                         "dn_callback : new entry is older than ours "
2972                                                         "%s ours %s, new %s\n",
2973                                                         rs->sr_entry->e_name.bv_val,
2974                                                         old->a_vals[0].bv_val,
2975                                                         new->a_vals[0].bv_val );
2976                                                 return LDAP_SUCCESS;
2977                                         } else if ( rc == 0 ) {
2978                                                 Debug( LDAP_DEBUG_SYNC,
2979                                                         "dn_callback : entries have identical CSN "
2980                                                         "%s %s\n",
2981                                                         rs->sr_entry->e_name.bv_val,
2982                                                         old->a_vals[0].bv_val, 0 );
2983                                                 return LDAP_SUCCESS;
2984                                         }
2985                                 }
2986
2987                                 /* We assume that attributes are saved in the same order
2988                                  * in the remote and local databases. So if we walk through
2989                                  * the attributeDescriptions one by one they should match in
2990                                  * lock step. If not, look for an add or delete.
2991                                  */
2992                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2993                                                 old && new; )
2994                                 {
2995                                         /* If we've seen this before, use its mod now */
2996                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2997                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2998                                                 new = new->a_next;
2999                                                 continue;
3000                                         }
3001                                         /* Skip contextCSN */
3002                                         if ( is_ctx && old->a_desc ==
3003                                                 slap_schema.si_ad_contextCSN ) {
3004                                                 old = old->a_next;
3005                                                 continue;
3006                                         }
3007
3008                                         if ( old->a_desc != new->a_desc ) {
3009                                                 Modifications *mod;
3010                                                 Attribute *tmp;
3011
3012                                                 /* If it's just been re-added later,
3013                                                  * remember that we've seen it.
3014                                                  */
3015                                                 tmp = attr_find( new, old->a_desc );
3016                                                 if ( tmp ) {
3017                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3018                                                 } else {
3019                                                         /* If it's a new attribute, pull it in.
3020                                                          */
3021                                                         tmp = attr_find( old, new->a_desc );
3022                                                         if ( !tmp ) {
3023                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3024                                                                 new = new->a_next;
3025                                                                 continue;
3026                                                         }
3027                                                         /* Delete old attr */
3028                                                         mod = ch_malloc( sizeof( Modifications ) );
3029                                                         mod->sml_op = LDAP_MOD_DELETE;
3030                                                         mod->sml_flags = 0;
3031                                                         mod->sml_desc = old->a_desc;
3032                                                         mod->sml_type = mod->sml_desc->ad_cname;
3033                                                         mod->sml_numvals = 0;
3034                                                         mod->sml_values = NULL;
3035                                                         mod->sml_nvalues = NULL;
3036                                                         *modtail = mod;
3037                                                         modtail = &mod->sml_next;
3038                                                 }
3039                                                 old = old->a_next;
3040                                                 continue;
3041                                         }
3042                                         /* kludge - always update modifiersName so that it
3043                                          * stays co-located with the other mod opattrs. But only
3044                                          * if we know there are other valid mods.
3045                                          */
3046                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3047                                                 dni->mods )
3048                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3049                                         else
3050                                                 attr_cmp( op, old, new, &modtail, &ml );
3051                                         new = new->a_next;
3052                                         old = old->a_next;
3053                                 }
3054                                 *modtail = *ml;
3055                                 *ml = NULL;
3056                         }
3057                 }
3058         } else if ( rs->sr_type == REP_RESULT ) {
3059                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3060                         Debug( LDAP_DEBUG_ANY,
3061                                 "dn_callback : consistency error - "
3062                                 "entryUUID is not unique\n", 0, 0, 0 );
3063                 }
3064         }
3065
3066         return LDAP_SUCCESS;
3067 }
3068
3069 static int
3070 nonpresent_callback(
3071         Operation*      op,
3072         SlapReply*      rs )
3073 {
3074         syncinfo_t *si = op->o_callback->sc_private;
3075         Attribute *a;
3076         int count = 0;
3077         struct berval* present_uuid = NULL;
3078         struct nonpresent_entry *np_entry;
3079
3080         if ( rs->sr_type == REP_RESULT ) {
3081                 count = avl_free( si->si_presentlist, ch_free );
3082                 si->si_presentlist = NULL;
3083
3084         } else if ( rs->sr_type == REP_SEARCH ) {
3085                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3086                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3087
3088                         if ( a ) {
3089                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3090                                         syncuuid_cmp );
3091                         }
3092
3093                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3094                                 char buf[sizeof("rid=999 not")];
3095
3096                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3097                                         present_uuid ? "got" : "not" );
3098
3099                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3100                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3101                         }
3102
3103                         if ( a == NULL ) return 0;
3104                 }
3105
3106                 if ( present_uuid == NULL ) {
3107                         np_entry = (struct nonpresent_entry *)
3108                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3109                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3110                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3111                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3112
3113                 } else {
3114                         avl_delete( &si->si_presentlist,
3115                                 &a->a_nvals[0], syncuuid_cmp );
3116                         ch_free( present_uuid );
3117                 }
3118         }
3119         return LDAP_SUCCESS;
3120 }
3121
3122 static int
3123 null_callback(
3124         Operation*      op,
3125         SlapReply*      rs )
3126 {
3127         if ( rs->sr_err != LDAP_SUCCESS &&
3128                 rs->sr_err != LDAP_REFERRAL &&
3129                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3130                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3131                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3132         {
3133                 Debug( LDAP_DEBUG_ANY,
3134                         "null_callback : error code 0x%x\n",
3135                         rs->sr_err, 0, 0 );
3136         }
3137         return LDAP_SUCCESS;
3138 }
3139
3140 static struct berval *
3141 slap_uuidstr_from_normalized(
3142         struct berval* uuidstr,
3143         struct berval* normalized,
3144         void *ctx )
3145 {
3146 #if 0
3147         struct berval *new;
3148         unsigned char nibble;
3149         int i, d = 0;
3150
3151         if ( normalized == NULL ) return NULL;
3152         if ( normalized->bv_len != 16 ) return NULL;
3153
3154         if ( uuidstr ) {
3155                 new = uuidstr;
3156         } else {
3157                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3158                 if ( new == NULL ) {
3159                         return NULL;
3160                 }
3161         }
3162
3163         new->bv_len = 36;
3164
3165         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3166                 if ( new != uuidstr ) {
3167                         slap_sl_free( new, ctx );
3168                 }
3169                 return NULL;
3170         }
3171
3172         for ( i = 0; i < 16; i++ ) {
3173                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3174                         new->bv_val[(i<<1)+d] = '-';
3175                         d += 1;
3176                 }
3177
3178                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3179                 if ( nibble < 10 ) {
3180                         new->bv_val[(i<<1)+d] = nibble + '0';
3181                 } else {
3182                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3183                 }
3184
3185                 nibble = (normalized->bv_val[i]) & 0xF;
3186                 if ( nibble < 10 ) {
3187                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3188                 } else {
3189                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3190                 }
3191         }
3192
3193         new->bv_val[new->bv_len] = '\0';
3194         return new;
3195 #endif
3196
3197         struct berval   *new;
3198         int             rc = 0;
3199
3200         if ( normalized == NULL ) return NULL;
3201         if ( normalized->bv_len != 16 ) return NULL;
3202
3203         if ( uuidstr ) {
3204                 new = uuidstr;
3205
3206         } else {
3207                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3208                 if ( new == NULL ) {
3209                         return NULL;
3210                 }
3211         }
3212
3213         new->bv_len = 36;
3214
3215         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3216                 rc = 1;
3217                 goto done;
3218         }
3219
3220         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3221                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3222
3223 done:;
3224         if ( rc == -1 ) {
3225                 if ( new != NULL ) {
3226                         if ( new->bv_val != NULL ) {
3227                                 slap_sl_free( new->bv_val, ctx );
3228                         }
3229
3230                         if ( new != uuidstr ) {
3231                                 slap_sl_free( new, ctx );
3232                         }
3233                 }
3234                 new = NULL;
3235
3236         } else {
3237                 new->bv_len = rc;
3238         }
3239
3240         return new;
3241 }
3242
3243 static int
3244 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3245 {
3246         const struct berval *uuid1 = v_uuid1;
3247         const struct berval *uuid2 = v_uuid2;
3248         int rc = uuid1->bv_len - uuid2->bv_len;
3249         if ( rc ) return rc;
3250         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3251 }
3252
3253 void
3254 syncinfo_free( syncinfo_t *sie, int free_all )
3255 {
3256         syncinfo_t *si_next;
3257
3258         if ( free_all && sie->si_cookieState ) {
3259                 ch_free( sie->si_cookieState->cs_sids );
3260                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3261                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3262                 ch_free( sie->si_cookieState );
3263         }
3264         do {
3265                 si_next = sie->si_next;
3266
3267                 if ( sie->si_ld ) {
3268                         if ( sie->si_conn ) {
3269                                 connection_client_stop( sie->si_conn );
3270                                 sie->si_conn = NULL;
3271                         }
3272                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3273                 }
3274
3275                 /* re-fetch it, in case it was already removed */
3276                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3277                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3278                 if ( sie->si_re ) {
3279                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3280                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3281                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3282                 }
3283
3284                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3285                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3286
3287                 bindconf_free( &sie->si_bindconf );
3288
3289                 if ( sie->si_filterstr.bv_val ) {
3290                         ch_free( sie->si_filterstr.bv_val );
3291                 }
3292                 if ( sie->si_logfilterstr.bv_val ) {
3293                         ch_free( sie->si_logfilterstr.bv_val );
3294                 }
3295                 if ( sie->si_base.bv_val ) {
3296                         ch_free( sie->si_base.bv_val );
3297                 }
3298                 if ( sie->si_logbase.bv_val ) {
3299                         ch_free( sie->si_logbase.bv_val );
3300                 }
3301                 if ( sie->si_attrs ) {
3302                         int i = 0;
3303                         while ( sie->si_attrs[i] != NULL ) {
3304                                 ch_free( sie->si_attrs[i] );
3305                                 i++;
3306                         }
3307                         ch_free( sie->si_attrs );
3308                 }
3309                 if ( sie->si_exattrs ) {
3310                         int i = 0;
3311                         while ( sie->si_exattrs[i] != NULL ) {
3312                                 ch_free( sie->si_exattrs[i] );
3313                                 i++;
3314                         }
3315                         ch_free( sie->si_exattrs );
3316                 }
3317                 if ( sie->si_anlist ) {
3318                         int i = 0;
3319                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3320                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3321                                 i++;
3322                         }
3323                         ch_free( sie->si_anlist );
3324                 }
3325                 if ( sie->si_exanlist ) {
3326                         int i = 0;
3327                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3328                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3329                                 i++;
3330                         }
3331                         ch_free( sie->si_exanlist );
3332                 }
3333                 if ( sie->si_retryinterval ) {
3334                         ch_free( sie->si_retryinterval );
3335                 }
3336                 if ( sie->si_retrynum ) {
3337                         ch_free( sie->si_retrynum );
3338                 }
3339                 if ( sie->si_retrynum_init ) {
3340                         ch_free( sie->si_retrynum_init );
3341                 }
3342                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3343                 if ( sie->si_presentlist ) {
3344                     avl_free( sie->si_presentlist, ch_free );
3345                 }
3346                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3347                         struct nonpresent_entry* npe;
3348                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3349                         LDAP_LIST_REMOVE( npe, npe_link );
3350                         if ( npe->npe_name ) {
3351                                 if ( npe->npe_name->bv_val ) {
3352                                         ch_free( npe->npe_name->bv_val );
3353                                 }
3354                                 ch_free( npe->npe_name );
3355                         }
3356                         if ( npe->npe_nname ) {
3357                                 if ( npe->npe_nname->bv_val ) {
3358                                         ch_free( npe->npe_nname->bv_val );
3359                                 }
3360                                 ch_free( npe->npe_nname );
3361                         }
3362                         ch_free( npe );
3363                 }
3364                 ch_free( sie );
3365                 sie = si_next;
3366         } while ( free_all && si_next );
3367 }
3368
3369
3370
3371 /* NOTE: used & documented in slapd.conf(5) */
3372 #define IDSTR                   "rid"
3373 #define PROVIDERSTR             "provider"
3374 #define SCHEMASTR               "schemachecking"
3375 #define FILTERSTR               "filter"
3376 #define SEARCHBASESTR           "searchbase"
3377 #define SCOPESTR                "scope"
3378 #define ATTRSONLYSTR            "attrsonly"
3379 #define ATTRSSTR                "attrs"
3380 #define TYPESTR                 "type"
3381 #define INTERVALSTR             "interval"
3382 #define RETRYSTR                "retry"
3383 #define SLIMITSTR               "sizelimit"
3384 #define TLIMITSTR               "timelimit"
3385 #define SYNCDATASTR             "syncdata"
3386 #define LOGBASESTR              "logbase"
3387 #define LOGFILTERSTR    "logfilter"
3388
3389 /* FIXME: undocumented */
3390 #define EXATTRSSTR              "exattrs"
3391 #define MANAGEDSAITSTR          "manageDSAit"
3392
3393 /* mandatory */
3394 #define GOT_ID                  0x0001
3395 #define GOT_PROVIDER    0x0002
3396 #define GOT_BASE                0x0004
3397
3398 /* check */
3399 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3400
3401 static struct {
3402         struct berval key;
3403         int val;
3404 } scopes[] = {
3405         { BER_BVC("base"), LDAP_SCOPE_BASE },
3406         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3407         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3408         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3409         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3410         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3411         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3412         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3413         { BER_BVNULL, 0 }
3414 };
3415
3416 static slap_verbmasks datamodes[] = {
3417         { BER_BVC("default"), SYNCDATA_DEFAULT },
3418         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3419         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3420         { BER_BVNULL, 0 }
3421 };
3422
3423 static int
3424 parse_syncrepl_line(
3425         ConfigArgs      *c,
3426         syncinfo_t      *si )
3427 {
3428         int     gots = 0;
3429         int     i;
3430         char    *val;
3431
3432         for ( i = 1; i < c->argc; i++ ) {
3433                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3434                                         STRLENOF( IDSTR "=" ) ) )
3435                 {
3436                         int tmp;
3437                         /* '\0' string terminator accounts for '=' */
3438                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3439                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3440                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3441                                         "Error: parse_syncrepl_line: "
3442                                         "unable to parse syncrepl id \"%s\"", val );
3443                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3444                                 return -1;
3445                         }
3446                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3447                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3448                                         "Error: parse_syncrepl_line: "
3449                                         "syncrepl id %d is out of range [0..4095]", tmp );
3450                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3451                                 return -1;
3452                         }
3453                         si->si_rid = tmp;
3454                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3455                         gots |= GOT_ID;
3456                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3457                                         STRLENOF( PROVIDERSTR "=" ) ) )
3458                 {
3459                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3460                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3461                         gots |= GOT_PROVIDER;
3462                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3463                                         STRLENOF( SCHEMASTR "=" ) ) )
3464                 {
3465                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3466                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3467                                 si->si_schemachecking = 1;
3468                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3469                                 si->si_schemachecking = 0;
3470                         } else {
3471                                 si->si_schemachecking = 1;
3472                         }
3473                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3474                                         STRLENOF( FILTERSTR "=" ) ) )
3475                 {
3476                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3477                         if ( si->si_filterstr.bv_val )
3478                                 ch_free( si->si_filterstr.bv_val );
3479                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3480                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3481                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3482                 {
3483                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3484                         if ( si->si_logfilterstr.bv_val )
3485                                 ch_free( si->si_logfilterstr.bv_val );
3486                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3487                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3488                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3489                 {
3490                         struct berval   bv;
3491                         int             rc;
3492
3493                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3494                         if ( si->si_base.bv_val ) {
3495                                 ch_free( si->si_base.bv_val );
3496                         }
3497                         ber_str2bv( val, 0, 0, &bv );
3498                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3499                         if ( rc != LDAP_SUCCESS ) {
3500                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3501                                         "Invalid base DN \"%s\": %d (%s)",
3502                                         val, rc, ldap_err2string( rc ) );
3503                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3504                                 return -1;
3505                         }
3506                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3507                                 ch_free( si->si_base.bv_val );
3508                                 BER_BVZERO( &si->si_base );
3509                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3510                                         "Base DN \"%s\" is not within the database naming context",
3511                                         val );
3512                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3513                                 return -1;
3514                         }
3515                         gots |= GOT_BASE;
3516                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3517                                         STRLENOF( LOGBASESTR "=" ) ) )
3518                 {
3519                         struct berval   bv;
3520                         int             rc;
3521
3522                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3523                         if ( si->si_logbase.bv_val ) {
3524                                 ch_free( si->si_logbase.bv_val );
3525                         }
3526                         ber_str2bv( val, 0, 0, &bv );
3527                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3528                         if ( rc != LDAP_SUCCESS ) {
3529                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3530                                         "Invalid logbase DN \"%s\": %d (%s)",
3531                                         val, rc, ldap_err2string( rc ) );
3532                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3533                                 return -1;
3534                         }
3535                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3536                                         STRLENOF( SCOPESTR "=" ) ) )
3537                 {
3538                         int j;
3539                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3540                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3541                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3542                                         si->si_scope = scopes[j].val;
3543                                         break;
3544                                 }
3545                         }
3546                         if ( BER_BVISNULL(&scopes[j].key) ) {
3547                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3548                                         "Error: parse_syncrepl_line: "
3549                                         "unknown scope \"%s\"", val);
3550                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3551                                 return -1;
3552                         }
3553                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3554                                         STRLENOF( ATTRSONLYSTR ) ) )
3555                 {
3556                         si->si_attrsonly = 1;
3557                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3558                                         STRLENOF( ATTRSSTR "=" ) ) )
3559                 {
3560                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3561                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3562                                 char *attr_fname;
3563                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3564                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3565                                 if ( si->si_anlist == NULL ) {
3566                                         ch_free( attr_fname );
3567                                         return -1;
3568                                 }
3569                                 si->si_anfile = attr_fname;
3570                         } else {
3571                                 char *str, *s, *next;
3572                                 const char *delimstr = " ,\t";
3573                                 str = ch_strdup( val );
3574                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3575                                                 s != NULL;
3576                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3577                                 {
3578                                         if ( strlen(s) == 1 && *s == '*' ) {
3579                                                 si->si_allattrs = 1;
3580                                                 val[ s - str ] = delimstr[0];
3581                                         }
3582                                         if ( strlen(s) == 1 && *s == '+' ) {
3583                                                 si->si_allopattrs = 1;
3584                                                 val [ s - str ] = delimstr[0];
3585                                         }
3586                                 }
3587                                 ch_free( str );
3588                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3589                                 if ( si->si_anlist == NULL ) {
3590                                         return -1;
3591                                 }
3592                         }
3593                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3594                                         STRLENOF( EXATTRSSTR "=" ) ) )
3595                 {
3596                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3597                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3598                                 char *attr_fname;
3599                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3600                                 si->si_exanlist = file2anlist(
3601                                         si->si_exanlist, attr_fname, " ,\t" );
3602                                 if ( si->si_exanlist == NULL ) {
3603                                         ch_free( attr_fname );
3604                                         return -1;
3605                                 }
3606                                 ch_free( attr_fname );
3607                         } else {
3608                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3609                                 if ( si->si_exanlist == NULL ) {
3610                                         return -1;
3611                                 }
3612                         }
3613                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3614                                         STRLENOF( TYPESTR "=" ) ) )
3615                 {
3616                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3617                         if ( !strncasecmp( val, "refreshOnly",
3618                                                 STRLENOF("refreshOnly") ) )
3619                         {
3620                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3621                         } else if ( !strncasecmp( val, "refreshAndPersist",
3622                                                 STRLENOF("refreshAndPersist") ) )
3623                         {
3624                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3625                                 si->si_interval = 60;
3626                         } else {
3627                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3628                                         "Error: parse_syncrepl_line: "
3629                                         "unknown sync type \"%s\"", val);
3630                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3631                                 return -1;
3632                         }
3633                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3634                                         STRLENOF( INTERVALSTR "=" ) ) )
3635                 {
3636                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3637                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3638                                 si->si_interval = 0;
3639                         } else if ( strchr( val, ':' ) != NULL ) {
3640                                 char *next, *ptr = val;
3641                                 int dd, hh, mm, ss;
3642
3643                                 dd = strtol( ptr, &next, 10 );
3644                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3645                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3646                                                 "Error: parse_syncrepl_line: "
3647                                                 "invalid interval \"%s\", unable to parse days", val );
3648                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3649                                         return -1;
3650                                 }
3651                                 ptr = next + 1;
3652                                 hh = strtol( ptr, &next, 10 );
3653                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3654                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3655                                                 "Error: parse_syncrepl_line: "
3656                                                 "invalid interval \"%s\", unable to parse hours", val );
3657                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3658                                         return -1;
3659                                 }
3660                                 ptr = next + 1;
3661                                 mm = strtol( ptr, &next, 10 );
3662                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3663                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3664                                                 "Error: parse_syncrepl_line: "
3665                                                 "invalid interval \"%s\", unable to parse minutes", val );
3666                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3667                                         return -1;
3668                                 }
3669                                 ptr = next + 1;
3670                                 ss = strtol( ptr, &next, 10 );
3671                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3672                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3673                                                 "Error: parse_syncrepl_line: "
3674                                                 "invalid interval \"%s\", unable to parse seconds", val );
3675                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3676                                         return -1;
3677                                 }
3678                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3679                         } else {
3680                                 unsigned long   t;
3681
3682                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3683                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3684                                                 "Error: parse_syncrepl_line: "
3685                                                 "invalid interval \"%s\"", val );
3686                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3687                                         return -1;
3688                                 }
3689                                 si->si_interval = (time_t)t;
3690                         }
3691                         if ( si->si_interval < 0 ) {
3692                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3693                                         "Error: parse_syncrepl_line: "
3694                                         "invalid interval \"%ld\"",
3695                                         (long) si->si_interval);
3696                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3697                                 return -1;
3698                         }
3699                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3700                                         STRLENOF( RETRYSTR "=" ) ) )
3701                 {
3702                         char **retry_list;
3703                         int j, k, n;
3704
3705                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3706                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3707                         retry_list[0] = NULL;
3708
3709                         slap_str2clist( &retry_list, val, " ,\t" );
3710
3711                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3712                         n = k / 2;
3713                         if ( k % 2 ) {
3714                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3715                                         "Error: incomplete syncrepl retry list" );
3716                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3717                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3718                                         ch_free( retry_list[k] );
3719                                 }
3720                                 ch_free( retry_list );
3721                                 return 1;
3722                         }
3723                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3724                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3725                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3726                         for ( j = 0; j < n; j++ ) {
3727                                 unsigned long   t;
3728                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3729                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3730                                                 "Error: invalid retry interval \"%s\" (#%d)",
3731                                                 retry_list[j*2], j );
3732                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3733                                         /* do some cleanup */
3734                                         return 1;
3735                                 }
3736                                 si->si_retryinterval[j] = (time_t)t;
3737                                 if ( *retry_list[j*2+1] == '+' ) {
3738                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3739                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3740                                         j++;
3741                                         break;
3742                                 } else {
3743                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3744                                                         || si->si_retrynum_init[j] <= 0 )
3745                                         {
3746                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3747                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3748                                                         retry_list[j*2+1], j );
3749                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3750                                                 /* do some cleanup */
3751                                                 return 1;
3752                                         }
3753                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3754                                                         || si->si_retrynum[j] <= 0 )
3755                                         {
3756                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3757                                                         "Error: invalid retry number \"%s\" (#%d)",
3758                                                         retry_list[j*2+1], j );
3759                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3760                                                 /* do some cleanup */
3761                                                 return 1;
3762                                         }
3763                                 }
3764                         }
3765                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3766                         si->si_retrynum[j] = RETRYNUM_TAIL;
3767                         si->si_retryinterval[j] = 0;
3768
3769                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3770                                 ch_free( retry_list[k] );
3771                         }
3772                         ch_free( retry_list );
3773                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3774                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3775                 {
3776                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3777                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3778                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3779                         {
3780                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3781                                         "invalid manageDSAit value \"%s\".\n",
3782                                         val );
3783                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3784                                 return 1;
3785                         }
3786                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3787                                         STRLENOF( SLIMITSTR "=") ) )
3788                 {
3789                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3790                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3791                                 si->si_slimit = 0;
3792
3793                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3794                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3795                                         "invalid size limit value \"%s\".\n",
3796                                         val );
3797                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3798                                 return 1;
3799                         }
3800                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3801                                         STRLENOF( TLIMITSTR "=" ) ) )
3802                 {
3803                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3804                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3805                                 si->si_tlimit = 0;
3806
3807                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3808                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3809                                         "invalid time limit value \"%s\".\n",
3810                                         val );
3811                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3812                                 return 1;
3813                         }
3814                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3815                                         STRLENOF( SYNCDATASTR "=" ) ) )
3816                 {
3817                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3818                         si->si_syncdata = verb_to_mask( val, datamodes );
3819                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3820                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3821                                 "Error: parse_syncrepl_line: "
3822                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3823                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3824                         return -1;
3825                 }
3826         }
3827
3828         if ( gots != GOT_ALL ) {
3829                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3830                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3831                         gots & GOT_ID ? "" : " "IDSTR,
3832                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3833                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3834                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3835                 return -1;
3836         }
3837
3838         return 0;
3839 }
3840
3841 static int
3842 add_syncrepl(
3843         ConfigArgs *c )
3844 {
3845         syncinfo_t *si;
3846         int     rc = 0;
3847
3848         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3849                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3850                         "operations required for syncrepl", c->be->be_type );
3851                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3852                 return 1;
3853         }
3854         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3855                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3856                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3857                 return 1;
3858         }
3859         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3860
3861         if ( si == NULL ) {
3862                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3863                 return 1;
3864         }
3865
3866         si->si_bindconf.sb_tls = SB_TLS_OFF;
3867         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3868         si->si_schemachecking = 0;
3869         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3870                 &si->si_filterstr );
3871         si->si_base.bv_val = NULL;
3872         si->si_scope = LDAP_SCOPE_SUBTREE;
3873         si->si_attrsonly = 0;
3874         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3875         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3876         si->si_attrs = NULL;
3877         si->si_allattrs = 0;
3878         si->si_allopattrs = 0;
3879         si->si_exattrs = NULL;
3880         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3881         si->si_interval = 86400;
3882         si->si_retryinterval = NULL;
3883         si->si_retrynum_init = NULL;
3884         si->si_retrynum = NULL;
3885         si->si_manageDSAit = 0;
3886         si->si_tlimit = 0;
3887         si->si_slimit = 0;
3888
3889         si->si_presentlist = NULL;
3890         LDAP_LIST_INIT( &si->si_nonpresentlist );
3891         ldap_pvt_thread_mutex_init( &si->si_mutex );
3892
3893         rc = parse_syncrepl_line( c, si );
3894
3895         if ( rc == 0 ) {
3896                 /* Must be LDAPv3 because we need controls */
3897                 switch ( si->si_bindconf.sb_version ) {
3898                 case 0:
3899                         /* not explicitly set */
3900                         si->si_bindconf.sb_version = LDAP_VERSION3;
3901                         break;
3902                 case 3:
3903                         /* explicitly set */
3904                         break;
3905                 default:
3906                         Debug( LDAP_DEBUG_ANY,
3907                                 "version %d incompatible with syncrepl\n",
3908                                 si->si_bindconf.sb_version, 0, 0 );
3909                         syncinfo_free( si, 0 );
3910                         return 1;
3911                 }
3912
3913                 si->si_be = c->be;
3914                 if ( slapMode & SLAP_SERVER_MODE ) {
3915                         Listener **l = slapd_get_listeners();
3916                         int isMe = 0;
3917
3918                         /* check if URL points to current server. If so, ignore
3919                          * this configuration. We require an exact match. Just
3920                          * in case they really want to do this, they can vary
3921                          * the case of the URL to allow it.
3922                          */
3923                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3924                                 int i;
3925                                 for ( i=0; l[i]; i++ ) {
3926                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3927                                                 isMe = 1;
3928                                                 break;
3929                                         }
3930                                 }
3931                         }
3932
3933                         if ( !isMe ) {
3934                                 init_syncrepl( si );
3935                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3936                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3937                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3938                                         si->si_ridtxt );
3939                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3940                                 if ( si->si_re )
3941                                         rc = config_sync_shadow( c ) ? -1 : 0;
3942                                 else
3943                                         rc = -1;
3944                         }
3945                 } else {
3946                         /* mirrormode still needs to see this flag in tool mode */
3947                         rc = config_sync_shadow( c ) ? -1 : 0;
3948                 }
3949         }
3950
3951 #ifdef HAVE_TLS
3952         /* Use main slapd defaults */
3953         bindconf_tls_defaults( &si->si_bindconf );
3954 #endif
3955         if ( rc < 0 ) {
3956                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3957                 syncinfo_free( si, 0 );
3958                 return 1;
3959         } else {
3960                 Debug( LDAP_DEBUG_CONFIG,
3961                         "Config: ** successfully added syncrepl \"%s\"\n",
3962                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3963                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3964                 if ( !si->si_schemachecking ) {
3965                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3966                 }
3967                 if ( c->be->be_syncinfo ) {
3968                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3969                 } else {
3970                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3971                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3972                 }
3973                 si->si_next = c->be->be_syncinfo;
3974                 c->be->be_syncinfo = si;
3975                 return 0;
3976         }
3977 }
3978
3979 static void
3980 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3981 {
3982         struct berval bc, uri;
3983         char buf[BUFSIZ*2], *ptr;
3984         int i;
3985
3986 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3987
3988         BER_BVZERO( bv );
3989
3990         /* temporarily inhibit bindconf from printing URI */
3991         uri = si->si_bindconf.sb_uri;
3992         BER_BVZERO( &si->si_bindconf.sb_uri );
3993         si->si_bindconf.sb_version = 0;
3994         bindconf_unparse( &si->si_bindconf, &bc );
3995         si->si_bindconf.sb_uri = uri;
3996         si->si_bindconf.sb_version = LDAP_VERSION3;
3997
3998         ptr = buf;
3999         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4000         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4001                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4002         if ( ptr - buf >= sizeof( buf ) ) return;
4003         if ( !BER_BVISNULL( &bc ) ) {
4004                 if ( WHATSLEFT <= bc.bv_len ) {
4005                         free( bc.bv_val );
4006                         return;
4007                 }
4008                 ptr = lutil_strcopy( ptr, bc.bv_val );
4009                 free( bc.bv_val );
4010         }
4011         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4012                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4013                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4014                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4015                 *ptr++ = '"';
4016         }
4017         if ( !BER_BVISNULL( &si->si_base ) ) {
4018                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4019                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4020                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4021                 *ptr++ = '"';
4022         }
4023         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4024                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4025                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4026                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4027                 *ptr++ = '"';
4028         }
4029         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4030                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4031                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4032                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4033                 *ptr++ = '"';
4034         }
4035         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4036                 if ( si->si_scope == scopes[i].val ) {
4037                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4038                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4039                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4040                         break;
4041                 }
4042         }
4043         if ( si->si_attrsonly ) {
4044                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4045                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4046         }
4047         if ( si->si_anfile ) {
4048                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4049                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4050                 ptr = lutil_strcopy( ptr, si->si_anfile );
4051                 *ptr++ = '"';
4052         } else if ( si->si_allattrs || si->si_allopattrs ||
4053                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4054         {
4055                 char *old;
4056
4057                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4058                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4059                 old = ptr;
4060                 /* FIXME: add check for overflow */
4061                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4062                 if ( si->si_allattrs ) {
4063                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4064                         if ( old != ptr ) *ptr++ = ',';
4065                         *ptr++ = '*';
4066                 }
4067                 if ( si->si_allopattrs ) {
4068                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4069                         if ( old != ptr ) *ptr++ = ',';
4070                         *ptr++ = '+';
4071                 }
4072                 *ptr++ = '"';
4073         }
4074         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4075                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4076                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4077                 /* FIXME: add check for overflow */
4078                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4079         }
4080         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4081         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4082         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4083
4084         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4085         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4086         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4087                 "refreshAndPersist" : "refreshOnly" );
4088
4089         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4090                 int dd, hh, mm, ss;
4091
4092                 dd = si->si_interval;
4093                 ss = dd % 60;
4094                 dd /= 60;
4095                 mm = dd % 60;
4096                 dd /= 60;
4097                 hh = dd % 24;
4098                 dd /= 24;
4099                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4100                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4101                 if ( ptr - buf >= sizeof( buf ) ) return;
4102         } else if ( si->si_retryinterval ) {
4103                 int space=0;
4104                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4105                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4106                 for (i=0; si->si_retryinterval[i]; i++) {
4107                         if ( space ) *ptr++ = ' ';
4108                         space = 1;
4109                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4110                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4111                                 *ptr++ = '+';
4112                         else
4113                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4114                 }
4115                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4116                 *ptr++ = '"';
4117         }
4118
4119         if ( si->si_slimit ) {
4120                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4121                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4122                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4123         }
4124
4125         if ( si->si_tlimit ) {
4126                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4127                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4128                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4129         }
4130
4131         if ( si->si_syncdata ) {
4132                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4133                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4134                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4135                         ptr = lutil_strcopy( ptr, bc.bv_val );
4136                 }
4137         }
4138         bc.bv_len = ptr - buf;
4139         bc.bv_val = buf;
4140         ber_dupbv( bv, &bc );
4141 }
4142
4143 int
4144 syncrepl_config( ConfigArgs *c )
4145 {
4146         if (c->op == SLAP_CONFIG_EMIT) {
4147                 if ( c->be->be_syncinfo ) {
4148                         struct berval bv;
4149                         syncinfo_t *si;
4150
4151                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4152                                 syncrepl_unparse( si, &bv );
4153                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4154                         }
4155                         return 0;
4156                 }
4157                 return 1;
4158         } else if ( c->op == LDAP_MOD_DELETE ) {
4159                 cookie_state *cs = NULL;
4160                 if ( c->be->be_syncinfo ) {
4161                         syncinfo_t *si, **sip;
4162                         int i;
4163
4164                         cs = c->be->be_syncinfo->si_cookieState;
4165                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4166                                 si = *sip;
4167                                 if ( c->valx == -1 || i == c->valx ) {
4168                                         int isrunning = 0;
4169                                         *sip = si->si_next;
4170                                         /* If the task is currently active, we have to leave
4171                                          * it running. It will exit on its own. This will only
4172                                          * happen when running on the cn=config DB.
4173                                          */
4174                                         if ( si->si_re ) {
4175                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4176                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4177                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4178                                         }
4179                                         if ( si->si_re && isrunning ) {
4180                                                 si->si_ctype = 0;
4181                                         } else {
4182                                                 syncinfo_free( si, 0 );
4183                                         }
4184                                         if ( i == c->valx )
4185                                                 break;
4186                                 } else {
4187                                         sip = &si->si_next;
4188                                 }
4189                         }
4190                 }
4191                 if ( !c->be->be_syncinfo ) {
4192                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4193                         if ( cs ) {
4194                                 ber_bvarray_free( cs->cs_vals );
4195                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4196                                 ch_free( cs );
4197                         }
4198                 }
4199                 return 0;
4200         }
4201         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4202                 Debug(LDAP_DEBUG_ANY, "%s: "
4203                         "syncrepl: database already shadowed.\n",
4204                         c->log, 0, 0);
4205                 return(1);
4206         } else {
4207                 return add_syncrepl( c );
4208         }
4209 }