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 sync_cookie *, int );
 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 check_syncprov(
 437         Operation *op,
 438         syncinfo_t *si )
 439 {
 440         AttributeName at[2];
 441         Attribute a = {0};
 442         Entry e = {0};
 443         SlapReply rs = {0};
 444         int i, j, changed = 0;
 445
 446         /* Look for contextCSN from syncprov overlay. If
 447          * there's no overlay, this will be a no-op. That means
 448          * this is a pure consumer, so local changes will not be
 449          * allowed, and all changes will already be reflected in
 450          * the cookieState.
 451          */
 452         a.a_desc = slap_schema.si_ad_contextCSN;
 453         e.e_attrs = &a;
 454         e.e_name = op->o_bd->be_suffix[0];
 455         e.e_nname = op->o_bd->be_nsuffix[0];
 456         at[0].an_name = a.a_desc->ad_cname;
 457         at[0].an_desc = a.a_desc;
 458         BER_BVZERO( &at[1].an_name );
 459         rs.sr_entry = &e;
 460         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 461         rs.sr_attrs = at;
 462         op->o_req_dn = e.e_name;
 463         op->o_req_ndn = e.e_nname;
 464
 465         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 466         i = backend_operational( op, &rs );
 467         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 468                 int num = a.a_numvals;
 469                 /* check for differences */
 470                 if ( num != si->si_cookieState->cs_num ) {
 471                         changed = 1;
 472                 } else {
 473                         for ( i=0; i<num; i++ ) {
 474                                 if ( ber_bvcmp( &a.a_nvals[i],
 475                                         &si->si_cookieState->cs_vals[i] )) {
 476                                         changed = 1;
 477                                         break;
 478                                 }
 479                         }
 480                 }
 481                 if ( changed ) {
 482                         ber_bvarray_free( si->si_cookieState->cs_vals );
 483                         ch_free( si->si_cookieState->cs_sids );
 484                         si->si_cookieState->cs_num = num;
 485                         si->si_cookieState->cs_vals = a.a_nvals;
 486                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 487                                 num, NULL );
 488                         si->si_cookieState->cs_age++;
 489                 } else {
 490                         ber_bvarray_free( a.a_nvals );
 491                 }
 492                 ber_bvarray_free( a.a_vals );
 493         }
 494         /* See if the cookieState has changed due to anything outside
 495          * this particular consumer. That includes other consumers in
 496          * the same context, or local changes detected above.
 497          */
 498         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 499                 si->si_cookieState->cs_age ) {
 500                 if ( !si->si_syncCookie.numcsns ) {
 501                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 502                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 503                                 si->si_cookieState->cs_vals, NULL );
 504                         changed = 1;
 505                 } else {
 506                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 507                                 /* bogus, just dup everything */
 508                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 509                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 510                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 511                                                 si->si_cookieState->cs_vals, NULL );
 512                                         changed = 1;
 513                                         break;
 514                                 }
 515                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 516                                         if ( si->si_syncCookie.sids[i] !=
 517                                                 si->si_cookieState->cs_sids[j] )
 518                                                 continue;
 519                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 520                                                 &si->si_cookieState->cs_vals[j] ))
 521                                                 break;
 522                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 523                                                 &si->si_cookieState->cs_vals[j] );
 524                                         changed = 1;
 525                                         break;
 526                                 }
 527                         }
 528                 }
 529         }
 530         if ( changed ) {
 531                 si->si_cookieAge = si->si_cookieState->cs_age;
 532                 ch_free( si->si_syncCookie.octet_str.bv_val );
 533                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 534                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 535                         si->si_syncCookie.sid );
 536         }
 537         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 538         return changed;
 539 }
 540
 541 static int
 542 do_syncrep1(
 543         Operation *op,
 544         syncinfo_t *si )
 545 {
 546         int     rc;
 547         int cmdline_cookie_found = 0;
 548
 549         struct sync_cookie      *sc = NULL;
 550 #ifdef HAVE_TLS
 551         void    *ssl;
 552 #endif
 553
 554         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 555         if ( rc != LDAP_SUCCESS ) {
 556                 goto done;
 557         }
 558         op->o_protocol = LDAP_VERSION3;
 559
 560         /* Set SSF to strongest of TLS, SASL SSFs */
 561         op->o_sasl_ssf = 0;
 562         op->o_tls_ssf = 0;
 563         op->o_transport_ssf = 0;
 564 #ifdef HAVE_TLS
 565         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 566                 == LDAP_SUCCESS && ssl != NULL )
 567         {
 568                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 569         }
 570 #endif /* HAVE_TLS */
 571         {
 572                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 573                                                   to use sasl_ssf_t but currently uses ber_len_t */
 574                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 575                 op->o_sasl_ssf = ssf;
 576         }
 577         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 578                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 579
 580         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 581
 582         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 583         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 584
 585         si->si_syncCookie.rid = si->si_rid;
 586
 587         /* whenever there are multiple data sources possible, advertise sid */
 588         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 589                 slap_serverID : -1;
 590
 591         /* We've just started up, or the remote server hasn't sent us
 592          * any meaningful state.
 593          */
 594         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 595                 int i;
 596
 597                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 598                         if ( si->si_rid == sc->rid ) {
 599                                 cmdline_cookie_found = 1;
 600                                 break;
 601                         }
 602                 }
 603
 604                 if ( cmdline_cookie_found ) {
 605                         /* cookie is supplied in the command line */
 606
 607                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 608
 609                         /* ctxcsn wasn't parsed yet, do it now */
 610                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 611                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 612                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 613                         slap_sync_cookie_free( sc, 1 );
 614                 } else {
 615                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 616                         if ( !si->si_cookieState->cs_num ) {
 617                                 /* get contextCSN shadow replica from database */
 618                                 BerVarray csn = NULL;
 619                                 void *ctx = op->o_tmpmemctx;
 620
 621                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 622                                 op->o_req_dn = op->o_req_ndn;
 623
 624                                 /* try to read stored contextCSN */
 625                                 op->o_tmpmemctx = NULL;
 626                                 backend_attribute( op, NULL, &op->o_req_ndn,
 627                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 628                                 op->o_tmpmemctx = ctx;
 629                                 if ( csn ) {
 630                                         si->si_cookieState->cs_vals = csn;
 631                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 632                                         si->si_cookieState->cs_num = i;
 633                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 634                                 }
 635                         }
 636                         if ( si->si_cookieState->cs_num ) {
 637                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 638                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 639                                         si->si_cookieState->cs_vals, NULL )) {
 640                                         rc = LDAP_NO_MEMORY;
 641                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 642                                         goto done;
 643                                 }
 644                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 645                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 646                                         sizeof(int) );
 647                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 648                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 649                         }
 650                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 651                 }
 652
 653                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 654                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 655                         si->si_syncCookie.sid );
 656         } else {
 657                 /* Look for contextCSN from syncprov overlay. */
 658                 check_syncprov( op, si );
 659         }
 660
 661         si->si_refreshDone = 0;
 662
 663         rc = ldap_sync_search( si, op->o_tmpmemctx );
 664
 665         if( rc != LDAP_SUCCESS ) {
 666                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 667                         "ldap_search_ext: %s (%d)\n",
 668                         si->si_ridtxt, ldap_err2string( rc ), rc );
 669         }
 670
 671 done:
 672         if ( rc ) {
 673                 if ( si->si_ld ) {
 674                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 675                         si->si_ld = NULL;
 676                 }
 677         }
 678
 679         return rc;
 680 }
 681
 682 static int
 683 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 684 {
 685         int i, j, match = 0;
 686         const char *text;
 687
 688         *which = 0;
 689
 690         if ( sc1->numcsns < sc2->numcsns ) {
 691                 *which = sc1->numcsns;
 692                 return -1;
 693         }
 694
 695         for (j=0; j<sc2->numcsns; j++) {
 696                 for (i=0; i<sc1->numcsns; i++) {
 697                         if ( sc1->sids[i] != sc2->sids[j] )
 698                                 continue;
 699                         value_match( &match, slap_schema.si_ad_entryCSN,
 700                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 701                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 702                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 703                         if ( match < 0 ) {
 704                                 *which = j;
 705                                 return match;
 706                         }
 707                         break;
 708                 }
 709                 if ( i == sc1->numcsns ) {
 710                         /* sc2 has a sid sc1 lacks */
 711                         *which = j;
 712                         return -1;
 713                 }
 714         }
 715         return match;
 716 }
 717
 718 #define SYNC_PAUSED     -3
 719
 720 static int
 721 do_syncrep2(
 722         Operation *op,
 723         syncinfo_t *si )
 724 {
 725         LDAPControl     **rctrls = NULL;
 726         LDAPControl     *rctrlp;
 727
 728         BerElementBuffer berbuf;
 729         BerElement      *ber = (BerElement *)&berbuf;
 730
 731         LDAPMessage     *msg = NULL;
 732
 733         char            *retoid = NULL;
 734         struct berval   *retdata = NULL;
 735
 736         Entry           *entry = NULL;
 737
 738         int             syncstate;
 739         struct berval   syncUUID = BER_BVNULL;
 740         struct sync_cookie      syncCookie = { NULL };
 741         struct sync_cookie      syncCookie_req = { NULL };
 742         struct berval           cookie = BER_BVNULL;
 743
 744         int             rc,
 745                         err = LDAP_SUCCESS;
 746         ber_len_t       len;
 747
 748         struct berval   *psub;
 749         Modifications   *modlist = NULL;
 750
 751         int                             match, m;
 752
 753         struct timeval *tout_p = NULL;
 754         struct timeval tout = { 0, 0 };
 755
 756         int             refreshDeletes = 0;
 757         BerVarray syncUUIDs = NULL;
 758         ber_tag_t si_tag;
 759
 760         if ( slapd_shutdown ) {
 761                 rc = -2;
 762                 goto done;
 763         }
 764
 765         ber_init2( ber, NULL, LBER_USE_DER );
 766         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 767
 768         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 769
 770         psub = &si->si_be->be_nsuffix[0];
 771
 772         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 773
 774         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 775                 tout_p = &tout;
 776         } else {
 777                 tout_p = NULL;
 778         }
 779
 780         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 781                 tout_p, &msg ) ) > 0 )
 782         {
 783                 if ( slapd_shutdown ) {
 784                         rc = -2;
 785                         goto done;
 786                 }
 787                 switch( ldap_msgtype( msg ) ) {
 788                 case LDAP_RES_SEARCH_ENTRY:
 789                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 790                         /* we can't work without the control */
 791                         rctrlp = NULL;
 792                         if ( rctrls ) {
 793                                 LDAPControl **next;
 794                                 /* NOTE: make sure we use the right one;
 795                                  * a better approach would be to run thru
 796                                  * the whole list and take care of all */
 797                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 798                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 799                                 {
 800                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 801                                                 "got search entry with multiple "
 802                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 803                                         rc = -1;
 804                                         goto done;
 805                                 }
 806                         }
 807                         if ( rctrlp == NULL ) {
 808                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 809                                         "got search entry without "
 810                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 811                                 rc = -1;
 812                                 goto done;
 813                         }
 814                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 815                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 816                         /* FIXME: what if syncUUID is NULL or empty?
 817                          * (happens with back-sql...) */
 818                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 819                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 820                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 821                                         si->si_ridtxt,
 822                                         syncrepl_state2str( syncstate ), 0 );
 823                                 ldap_controls_free( rctrls );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 828                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 829
 830                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 831                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 832
 833                                 if ( !BER_BVISNULL( &cookie ) ) {
 834                                         ch_free( syncCookie.octet_str.bv_val );
 835                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 836                                 }
 837                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 838                                 {
 839                                         slap_parse_sync_cookie( &syncCookie, NULL );
 840                                         if ( syncCookie.ctxcsn ) {
 841                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 842                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 843                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 844                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 845                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 846                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 847                                                                 ldap_controls_free( rctrls );
 848                                                                 rc = 0;
 849                                                                 goto done;
 850                                                         }
 851                                                 }
 852                                         }
 853                                 }
 854                         }
 855                         rc = 0;
 856                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 857                                 modlist = NULL;
 858                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 859                                         syncCookie.ctxcsn )
 860                                 {
 861                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 862                                 } else switch ( rc ) {
 863                                         case LDAP_ALREADY_EXISTS:
 864                                         case LDAP_NO_SUCH_OBJECT:
 865                                         case LDAP_NO_SUCH_ATTRIBUTE:
 866                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 867                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 868                                                 si->si_logstate = SYNCLOG_FALLBACK;
 869                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 870                                                 break;
 871                                         default:
 872                                                 break;
 873                                 }
 874                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 875                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 876                         {
 877                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 878                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 879                                         syncCookie.ctxcsn )
 880                                 {
 881                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 882                                 }
 883                         }
 884                         ldap_controls_free( rctrls );
 885                         if ( modlist ) {
 886                                 slap_mods_free( modlist, 1 );
 887                         }
 888                         if ( rc )
 889                                 goto done;
 890                         break;
 891
 892                 case LDAP_RES_SEARCH_REFERENCE:
 893                         Debug( LDAP_DEBUG_ANY,
 894                                 "do_syncrep2: %s reference received error\n",
 895                                 si->si_ridtxt, 0, 0 );
 896                         break;
 897
 898                 case LDAP_RES_SEARCH_RESULT:
 899                         Debug( LDAP_DEBUG_SYNC,
 900                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 901                                 si->si_ridtxt, 0, 0 );
 902                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 903                                 &rctrls, 0 );
 904 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 905                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 906                                 /* map old result code to registered code */
 907                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 908                         }
 909 #endif
 910                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 911                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 912                                         si->si_logstate = SYNCLOG_FALLBACK;
 913                                 }
 914                                 rc = err;
 915                                 goto done;
 916                         }
 917                         if ( err ) {
 918                                 Debug( LDAP_DEBUG_ANY,
 919                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 920                                         si->si_ridtxt, err, ldap_err2string( err ) );
 921                         }
 922                         if ( rctrls ) {
 923                                 rctrlp = *rctrls;
 924                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 925
 926                                 ber_scanf( ber, "{" /*"}"*/);
 927                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 928                                         ber_scanf( ber, "m", &cookie );
 929
 930                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 931                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 932
 933                                         if ( !BER_BVISNULL( &cookie ) ) {
 934                                                 ch_free( syncCookie.octet_str.bv_val );
 935                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 936                                         }
 937                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 938                                         {
 939                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 940                                         }
 941                                 }
 942                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 943                                 {
 944                                         ber_scanf( ber, "b", &refreshDeletes );
 945                                 }
 946                                 ber_scanf( ber, /*"{"*/ "}" );
 947                         }
 948                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 949                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 950                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 951                         }
 952                         if ( !syncCookie.ctxcsn ) {
 953                                 match = 1;
 954                         } else if ( !syncCookie_req.ctxcsn ) {
 955                                 match = -1;
 956                                 m = 0;
 957                         } else {
 958                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 959                         }
 960                         if ( rctrls ) {
 961                                 ldap_controls_free( rctrls );
 962                         }
 963                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 964                                 /* FIXME : different error behaviors according to
 965                                  *      1) err code : LDAP_BUSY ...
 966                                  *      2) on err policy : stop service, stop sync, retry
 967                                  */
 968                                 if ( refreshDeletes == 0 && match < 0 &&
 969                                         err == LDAP_SUCCESS &&
 970                                         syncCookie_req.numcsns == syncCookie.numcsns )
 971                                 {
 972                                         syncrepl_del_nonpresent( op, si, NULL,
 973                                                 &syncCookie, m );
 974                                 } else {
 975                                         avl_free( si->si_presentlist, ch_free );
 976                                         si->si_presentlist = NULL;
 977                                 }
 978                         }
 979                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 980                         {
 981                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 982                         }
 983                         if ( err == LDAP_SUCCESS
 984                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
 985                                 si->si_logstate = SYNCLOG_LOGGING;
 986                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 987                         } else {
 988                                 rc = -2;
 989                         }
 990                         goto done;
 991                         break;
 992
 993                 case LDAP_RES_INTERMEDIATE:
 994                         rc = ldap_parse_intermediate( si->si_ld, msg,
 995                                 &retoid, &retdata, NULL, 0 );
 996                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 997                                 ber_init2( ber, retdata, LBER_USE_DER );
 998
 999                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1000                                 ber_tag_t tag;
1001                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1002                                         Debug( LDAP_DEBUG_SYNC,
1003                                                 "do_syncrep2: %s %s - %s\n",
1004                                                 si->si_ridtxt,
1005                                                 "LDAP_RES_INTERMEDIATE",
1006                                                 "NEW_COOKIE" );
1007                                         ber_scanf( ber, "tm", &tag, &cookie );
1008                                         break;
1009                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1010                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1011                                         Debug( LDAP_DEBUG_SYNC,
1012                                                 "do_syncrep2: %s %s - %s\n",
1013                                                 si->si_ridtxt,
1014                                                 "LDAP_RES_INTERMEDIATE",
1015                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1016                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1017                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1018                                                 si->si_refreshDelete = 1;
1019                                         } else {
1020                                                 si->si_refreshPresent = 1;
1021                                         }
1022                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1023                                         if ( ber_peek_tag( ber, &len ) == 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                                                 }
1038                                         }
1039                                         /* Defaults to TRUE */
1040                                         if ( ber_peek_tag( ber, &len ) ==
1041                                                 LDAP_TAG_REFRESHDONE )
1042                                         {
1043                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1044                                         } else
1045                                         {
1046                                                 si->si_refreshDone = 1;
1047                                         }
1048                                         ber_scanf( ber, /*"{"*/ "}" );
1049                                         break;
1050                                 case LDAP_TAG_SYNC_ID_SET:
1051                                         Debug( LDAP_DEBUG_SYNC,
1052                                                 "do_syncrep2: %s %s - %s\n",
1053                                                 si->si_ridtxt,
1054                                                 "LDAP_RES_INTERMEDIATE",
1055                                                 "SYNC_ID_SET" );
1056                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1057                                         if ( ber_peek_tag( ber, &len ) ==
1058                                                 LDAP_TAG_SYNC_COOKIE )
1059                                         {
1060                                                 ber_scanf( ber, "m", &cookie );
1061
1062                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1063                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1064
1065                                                 if ( !BER_BVISNULL( &cookie ) ) {
1066                                                         ch_free( syncCookie.octet_str.bv_val );
1067                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1068                                                 }
1069                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1070                                                 {
1071                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1072                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1073                                                 }
1074                                         }
1075                                         if ( ber_peek_tag( ber, &len ) ==
1076                                                 LDAP_TAG_REFRESHDELETES )
1077                                         {
1078                                                 ber_scanf( ber, "b", &refreshDeletes );
1079                                         }
1080                                         ber_scanf( ber, "[W]", &syncUUIDs );
1081                                         ber_scanf( ber, /*"{"*/ "}" );
1082                                         if ( refreshDeletes ) {
1083                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1084                                                         &syncCookie, m );
1085                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1086                                         } else {
1087                                                 int i;
1088                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1089                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1090                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1091                                                 }
1092                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1093                                         }
1094                                         slap_sync_cookie_free( &syncCookie, 0 );
1095                                         break;
1096                                 default:
1097                                         Debug( LDAP_DEBUG_ANY,
1098                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1099                                                 si->si_ridtxt, (long) si_tag, 0 );
1100                                         ldap_memfree( retoid );
1101                                         ber_bvfree( retdata );
1102                                         continue;
1103                                 }
1104
1105                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1106                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1107                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1108                                 }
1109                                 if ( !syncCookie.ctxcsn ) {
1110                                         match = 1;
1111                                 } else if ( !syncCookie_req.ctxcsn ) {
1112                                         match = -1;
1113                                         m = 0;
1114                                 } else {
1115                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1116                                 }
1117
1118                                 if ( match < 0 ) {
1119                                         if ( si->si_refreshPresent == 1 &&
1120                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1121                                                 syncrepl_del_nonpresent( op, si, NULL,
1122                                                         &syncCookie, m );
1123                                         }
1124
1125                                         if ( syncCookie.ctxcsn )
1126                                         {
1127                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1128                                         }
1129                                 }
1130
1131                                 ldap_memfree( retoid );
1132                                 ber_bvfree( retdata );
1133                                 break;
1134
1135                         } else {
1136                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1137                                         "unknown intermediate response (%d)\n",
1138                                         si->si_ridtxt, rc, 0 );
1139                                 ldap_memfree( retoid );
1140                                 ber_bvfree( retdata );
1141                                 break;
1142                         }
1143                         break;
1144
1145                 default:
1146                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1147                                 "unknown message (0x%02lx)\n",
1148                                 si->si_ridtxt,
1149                                 (unsigned long)ldap_msgtype( msg ), 0 );
1150                         break;
1151
1152                 }
1153                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1154                         slap_sync_cookie_free( &syncCookie_req, 0 );
1155                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1156                         slap_sync_cookie_free( &syncCookie, 0 );
1157                 }
1158                 ldap_msgfree( msg );
1159                 msg = NULL;
1160                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1161                         slap_sync_cookie_free( &syncCookie, 0 );
1162                         slap_sync_cookie_free( &syncCookie_req, 0 );
1163                         return SYNC_PAUSED;
1164                 }
1165         }
1166
1167         if ( rc == -1 ) {
1168                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1169                 err = rc;
1170         }
1171
1172 done:
1173         if ( err != LDAP_SUCCESS ) {
1174                 Debug( LDAP_DEBUG_ANY,
1175                         "do_syncrep2: %s (%d) %s\n",
1176                         si->si_ridtxt, err, ldap_err2string( err ) );
1177         }
1178
1179         slap_sync_cookie_free( &syncCookie, 0 );
1180         slap_sync_cookie_free( &syncCookie_req, 0 );
1181
1182         if ( msg ) ldap_msgfree( msg );
1183
1184         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1185                 if ( si->si_conn ) {
1186                         connection_client_stop( si->si_conn );
1187                         si->si_conn = NULL;
1188                 }
1189                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1190                 si->si_ld = NULL;
1191         }
1192
1193         return rc;
1194 }
1195
1196 static void *
1197 do_syncrepl(
1198         void    *ctx,
1199         void    *arg )
1200 {
1201         struct re_s* rtask = arg;
1202         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1203         Connection conn = {0};
1204         OperationBuffer opbuf;
1205         Operation *op;
1206         int rc = LDAP_SUCCESS;
1207         int dostop = 0, do_setup = 0;
1208         ber_socket_t s;
1209         int i, defer = 1, fail = 0;
1210         Backend *be;
1211
1212         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1213
1214         if ( si == NULL )
1215                 return NULL;
1216
1217         /* There must never be more than one instance active */
1218         if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex ))
1219                 return NULL;
1220
1221         switch( abs( si->si_type ) ) {
1222         case LDAP_SYNC_REFRESH_ONLY:
1223         case LDAP_SYNC_REFRESH_AND_PERSIST:
1224                 break;
1225         default:
1226                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1227                 return NULL;
1228         }
1229
1230         if ( slapd_shutdown ) {
1231                 if ( si->si_ld ) {
1232                         if ( si->si_conn ) {
1233                                 connection_client_stop( si->si_conn );
1234                                 si->si_conn = NULL;
1235                         }
1236                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1237                         si->si_ld = NULL;
1238                 }
1239                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1240                 return NULL;
1241         }
1242
1243         connection_fake_init( &conn, &opbuf, ctx );
1244         op = &opbuf.ob_op;
1245
1246         /* use global malloc for now */
1247         op->o_tmpmemctx = NULL;
1248         op->o_tmpmfuncs = &ch_mfuncs;
1249
1250         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1251         be = si->si_be;
1252
1253         /* Coordinate contextCSN updates with any syncprov overlays
1254          * in use. This may be complicated by the use of the glue
1255          * overlay.
1256          *
1257          * Typically there is a single syncprov mastering the entire
1258          * glued tree. In that case, our contextCSN updates should
1259          * go to the master DB. But if there is no syncprov on the
1260          * master DB, then nothing special is needed here.
1261          *
1262          * Alternatively, there may be individual syncprov overlays
1263          * on each glued branch. In that case, each syncprov only
1264          * knows about changes within its own branch. And so our
1265          * contextCSN updates should only go to the local DB.
1266          */
1267         if ( !si->si_wbe ) {
1268                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1269                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1270                         if ( overlay_is_inst( top_be, "syncprov" ))
1271                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1272                         else
1273                                 si->si_wbe = be;
1274                 } else {
1275                         si->si_wbe = be;
1276                 }
1277         }
1278         if ( !si->si_schemachecking )
1279                 op->o_no_schema_check = 1;
1280
1281         /* Establish session, do search */
1282         if ( !si->si_ld ) {
1283                 si->si_refreshDelete = 0;
1284                 si->si_refreshPresent = 0;
1285
1286                 /* use main DB when retrieving contextCSN */
1287                 op->o_bd = si->si_wbe;
1288                 op->o_dn = op->o_bd->be_rootdn;
1289                 op->o_ndn = op->o_bd->be_rootndn;
1290                 rc = do_syncrep1( op, si );
1291         }
1292
1293 reload:
1294         /* Process results */
1295         if ( rc == LDAP_SUCCESS ) {
1296                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1297
1298                 /* use current DB */
1299                 op->o_bd = be;
1300                 op->o_dn = op->o_bd->be_rootdn;
1301                 op->o_ndn = op->o_bd->be_rootndn;
1302                 rc = do_syncrep2( op, si );
1303                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1304                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1305                         goto reload;
1306                 }
1307
1308                 /* We got deleted while running on cn=config */
1309                 if ( !si->si_ctype ) {
1310                         if ( si->si_conn )
1311                                 dostop = 1;
1312                         rc = -1;
1313                 }
1314
1315                 if ( rc != SYNC_PAUSED ) {
1316                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1317                                 /* If we succeeded, enable the connection for further listening.
1318                                  * If we failed, tear down the connection and reschedule.
1319                                  */
1320                                 if ( rc == LDAP_SUCCESS ) {
1321                                         if ( si->si_conn ) {
1322                                                 connection_client_enable( si->si_conn );
1323                                                 goto success;
1324                                         } else {
1325                                                 do_setup = 1;
1326                                         }
1327                                 } else if ( si->si_conn ) {
1328                                         dostop = 1;
1329                                 }
1330                         } else {
1331                                 if ( rc == -2 ) rc = 0;
1332                         }
1333                 }
1334         }
1335
1336         /* At this point, we have 5 cases:
1337          * 1) for any hard failure, give up and remove this task
1338          * 2) for ServerDown, reschedule this task to run later
1339          * 3) for threadpool pause, reschedule to run immediately
1340          * 4) for Refresh and Success, reschedule to run
1341          * 5) for Persist and Success, reschedule to defer
1342          */
1343         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1344
1345         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1346                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1347         }
1348
1349         if ( dostop ) {
1350                 connection_client_stop( si->si_conn );
1351                 si->si_conn = NULL;
1352         }
1353
1354         if ( rc == SYNC_PAUSED ) {
1355                 rtask->interval.tv_sec = 0;
1356                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1357                 rc = 0;
1358         } else if ( rc == LDAP_SUCCESS ) {
1359                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1360                         defer = 0;
1361                 }
1362                 rtask->interval.tv_sec = si->si_interval;
1363                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1364                 if ( si->si_retrynum ) {
1365                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1366                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1367                         }
1368                         si->si_retrynum[i] = RETRYNUM_TAIL;
1369                 }
1370         } else {
1371                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1372                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1373                                 break;
1374                 }
1375
1376                 if ( !si->si_ctype
1377                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1378                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1379                         fail = RETRYNUM_TAIL;
1380                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1381                         if ( si->si_retrynum[i] > 0 )
1382                                 si->si_retrynum[i]--;
1383                         fail = si->si_retrynum[i];
1384                         rtask->interval.tv_sec = si->si_retryinterval[i];
1385                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1386                         slap_wake_listener();
1387                 }
1388         }
1389
1390         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1391
1392         if ( do_setup )
1393                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1394
1395 success:
1396         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1397
1398         if ( rc ) {
1399                 if ( fail == RETRYNUM_TAIL ) {
1400                         Debug( LDAP_DEBUG_ANY,
1401                                 "do_syncrepl: %s quitting\n",
1402                                 si->si_ridtxt, 0, 0 );
1403                 } else if ( fail > 0 ) {
1404                         Debug( LDAP_DEBUG_ANY,
1405                                 "do_syncrepl: %s retrying (%d retries left)\n",
1406                                 si->si_ridtxt, fail, 0 );
1407                 } else {
1408                         Debug( LDAP_DEBUG_ANY,
1409                                 "do_syncrepl: %s retrying\n",
1410                                 si->si_ridtxt, 0, 0 );
1411                 }
1412         }
1413
1414         /* Do final delete cleanup */
1415         if ( !si->si_ctype ) {
1416                 cookie_state *cs = NULL;
1417                 syncinfo_t **sip;
1418
1419                 cs = be->be_syncinfo->si_cookieState;
1420                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1421                 *sip = si->si_next;
1422                 syncinfo_free( si, 0 );
1423                 if ( !be->be_syncinfo ) {
1424                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1425                         if ( cs ) {
1426                                 ch_free( cs->cs_sids );
1427                                 ber_bvarray_free( cs->cs_vals );
1428                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1429                                 ch_free( cs );
1430                         }
1431                 }
1432         }
1433         return NULL;
1434 }
1435
1436 static slap_verbmasks modops[] = {
1437         { BER_BVC("add"), LDAP_REQ_ADD },
1438         { BER_BVC("delete"), LDAP_REQ_DELETE },
1439         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1440         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1441         { BER_BVNULL, 0 }
1442 };
1443
1444 static Modifications *
1445 syncrepl_accesslog_mods(
1446         syncinfo_t *si,
1447         struct berval *vals
1448 )
1449 {
1450         char *colon;
1451         const char *text;
1452         AttributeDescription *ad;
1453         struct berval bv, bv2;
1454         short op;
1455         Modifications *mod = NULL, *modlist = NULL, **modtail;
1456         int i;
1457
1458         modtail = &modlist;
1459
1460         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1461                 ad = NULL;
1462                 bv = vals[i];
1463
1464                 colon = ber_bvchr( &bv, ':' );
1465                 if ( !colon ) {
1466                         /* Invalid */
1467                         continue;
1468                 }
1469
1470                 bv.bv_len = colon - bv.bv_val;
1471                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1472                         /* Invalid */
1473                         continue;
1474                 }
1475
1476                 /* Ignore dynamically generated attrs */
1477                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1478                         continue;
1479                 }
1480
1481                 /* Ignore excluded attrs */
1482                 if ( ldap_charray_inlist( si->si_exattrs,
1483                         ad->ad_type->sat_cname.bv_val ) )
1484                 {
1485                         continue;
1486                 }
1487
1488                 switch(colon[1]) {
1489                 case '+':       op = LDAP_MOD_ADD; break;
1490                 case '-':       op = LDAP_MOD_DELETE; break;
1491                 case '=':       op = LDAP_MOD_REPLACE; break;
1492                 case '#':       op = LDAP_MOD_INCREMENT; break;
1493                 default:        continue;
1494                 }
1495
1496                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1497                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1498                         mod->sml_flags = 0;
1499                         mod->sml_op = op;
1500                         mod->sml_next = NULL;
1501                         mod->sml_desc = ad;
1502                         mod->sml_type = ad->ad_cname;
1503                         mod->sml_values = NULL;
1504                         mod->sml_nvalues = NULL;
1505                         mod->sml_numvals = 0;
1506
1507                         *modtail = mod;
1508                         modtail = &mod->sml_next;
1509                 }
1510                 if ( colon[2] == ' ' ) {
1511                         bv.bv_val = colon + 3;
1512                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1513                         ber_dupbv( &bv2, &bv );
1514                         ber_bvarray_add( &mod->sml_values, &bv2 );
1515                         mod->sml_numvals++;
1516                 }
1517         }
1518         return modlist;
1519 }
1520
1521 static Modifications *
1522 syncrepl_changelog_mods(
1523         syncinfo_t *si,
1524         struct berval *vals
1525 )
1526 {
1527         return NULL;    /* FIXME */
1528 }
1529
1530 static int
1531 syncrepl_message_to_op(
1532         syncinfo_t      *si,
1533         Operation       *op,
1534         LDAPMessage     *msg
1535 )
1536 {
1537         BerElement      *ber = NULL;
1538         Modifications   *modlist = NULL;
1539         logschema *ls;
1540         SlapReply rs = { REP_RESULT };
1541         slap_callback cb = { NULL, null_callback, NULL, NULL };
1542
1543         const char      *text;
1544         char txtbuf[SLAP_TEXT_BUFLEN];
1545         size_t textlen = sizeof txtbuf;
1546
1547         struct berval   bdn, dn = BER_BVNULL, ndn;
1548         struct berval   bv, *bvals = NULL;
1549         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1550                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1551                 psup = BER_BVNULL, nsup = BER_BVNULL;
1552         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1553
1554         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1555                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1556                         "Message type should be entry (%d)",
1557                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1558                 return -1;
1559         }
1560
1561         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1562                 ls = &accesslog_sc;
1563         else
1564                 ls = &changelog_sc;
1565
1566         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1567
1568         if ( rc != LDAP_SUCCESS ) {
1569                 Debug( LDAP_DEBUG_ANY,
1570                         "syncrepl_message_to_op: %s dn get failed (%d)",
1571                         si->si_ridtxt, rc, 0 );
1572                 return rc;
1573         }
1574
1575         op->o_tag = LBER_DEFAULT;
1576         op->o_bd = si->si_wbe;
1577
1578         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1579                 == LDAP_SUCCESS ) {
1580                 if ( bv.bv_val == NULL )
1581                         break;
1582
1583                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1584                         bdn = bvals[0];
1585                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1586                         ber_dupbv( &op->o_req_dn, &dn );
1587                         ber_dupbv( &op->o_req_ndn, &ndn );
1588                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1589                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1590                         freeReqDn = 1;
1591                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1592                         int i = verb_to_mask( bvals[0].bv_val, modops );
1593                         if ( i < 0 ) {
1594                                 Debug( LDAP_DEBUG_ANY,
1595                                         "syncrepl_message_to_op: %s unknown op %s",
1596                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1597                                 ch_free( bvals );
1598                                 rc = -1;
1599                                 goto done;
1600                         }
1601                         op->o_tag = modops[i].mask;
1602                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1603                         /* Parse attribute into modlist */
1604                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1605                                 modlist = syncrepl_accesslog_mods( si, bvals );
1606                         } else {
1607                                 modlist = syncrepl_changelog_mods( si, bvals );
1608                         }
1609                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1610                         rdn = bvals[0];
1611                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1612                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1613                                 deleteOldRdn = 1;
1614                         }
1615                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1616                         sup = bvals[0];
1617                 } else if ( !ber_bvstrcasecmp( &bv,
1618                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1619                 {
1620                         slap_queue_csn( op, bvals );
1621                 }
1622                 ch_free( bvals );
1623         }
1624
1625         /* If we didn't get a mod type or a target DN, bail out */
1626         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1627                 rc = -1;
1628                 goto done;
1629         }
1630
1631         op->o_callback = &cb;
1632         slap_op_time( &op->o_time, &op->o_tincr );
1633
1634         switch( op->o_tag ) {
1635         case LDAP_REQ_ADD:
1636         case LDAP_REQ_MODIFY:
1637                 /* If we didn't get required data, bail */
1638                 if ( !modlist ) goto done;
1639
1640                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1641
1642                 if ( rc != LDAP_SUCCESS ) {
1643                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1644                                 "mods check (%s)\n",
1645                                 si->si_ridtxt, text, 0 );
1646                         goto done;
1647                 }
1648
1649                 if ( op->o_tag == LDAP_REQ_ADD ) {
1650                         Entry *e = entry_alloc();
1651                         op->ora_e = e;
1652                         op->ora_e->e_name = op->o_req_dn;
1653                         op->ora_e->e_nname = op->o_req_ndn;
1654                         freeReqDn = 0;
1655                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1656                         if( rc != LDAP_SUCCESS ) {
1657                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1658                                 "mods2entry (%s)\n",
1659                                         si->si_ridtxt, text, 0 );
1660                         } else {
1661                                 rc = op->o_bd->be_add( op, &rs );
1662                                 Debug( LDAP_DEBUG_SYNC,
1663                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1664                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1665                         }
1666                         if ( e == op->ora_e )
1667                                 be_entry_release_w( op, op->ora_e );
1668                 } else {
1669                         op->orm_modlist = modlist;
1670                         op->o_bd = si->si_wbe;
1671                         rc = op->o_bd->be_modify( op, &rs );
1672                         modlist = op->orm_modlist;
1673                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1674                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1675                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1676                         op->o_bd = si->si_be;
1677                 }
1678                 break;
1679         case LDAP_REQ_MODRDN:
1680                 if ( BER_BVISNULL( &rdn ) ) goto done;
1681
1682                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1683                         goto done;
1684                 }
1685                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1686                         goto done;
1687                 }
1688                 if ( !BER_BVISNULL( &sup ) ) {
1689                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1690                                 goto done;
1691                         }
1692                         op->orr_newSup = &psup;
1693                         op->orr_nnewSup = &nsup;
1694                 } else {
1695                         op->orr_newSup = NULL;
1696                         op->orr_nnewSup = NULL;
1697                 }
1698                 op->orr_newrdn = prdn;
1699                 op->orr_nnewrdn = nrdn;
1700                 op->orr_deleteoldrdn = deleteOldRdn;
1701                 op->orr_modlist = NULL;
1702                 if ( slap_modrdn2mods( op, &rs ) ) {
1703                         goto done;
1704                 }
1705
1706                 /* Append modlist for operational attrs */
1707                 {
1708                         Modifications *m;
1709
1710                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1711                                 ;
1712                         m->sml_next = modlist;
1713                         modlist = NULL;
1714                 }
1715                 rc = op->o_bd->be_modrdn( op, &rs );
1716                 slap_mods_free( op->orr_modlist, 1 );
1717                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1718                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1719                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1720                 break;
1721         case LDAP_REQ_DELETE:
1722                 rc = op->o_bd->be_delete( op, &rs );
1723                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1724                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1725                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1726                 break;
1727         }
1728 done:
1729         slap_graduate_commit_csn( op );
1730         op->o_bd = si->si_be;
1731         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1732         BER_BVZERO( &op->o_csn );
1733         if ( modlist ) {
1734                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1735         }
1736         if ( !BER_BVISNULL( &rdn ) ) {
1737                 if ( !BER_BVISNULL( &nsup ) ) {
1738                         ch_free( nsup.bv_val );
1739                 }
1740                 if ( !BER_BVISNULL( &psup ) ) {
1741                         ch_free( psup.bv_val );
1742                 }
1743                 if ( !BER_BVISNULL( &nrdn ) ) {
1744                         ch_free( nrdn.bv_val );
1745                 }
1746                 if ( !BER_BVISNULL( &prdn ) ) {
1747                         ch_free( prdn.bv_val );
1748                 }
1749         }
1750         if ( freeReqDn ) {
1751                 ch_free( op->o_req_ndn.bv_val );
1752                 ch_free( op->o_req_dn.bv_val );
1753         }
1754         ber_free( ber, 0 );
1755         return rc;
1756 }
1757
1758 static int
1759 syncrepl_message_to_entry(
1760         syncinfo_t      *si,
1761         Operation       *op,
1762         LDAPMessage     *msg,
1763         Modifications   **modlist,
1764         Entry                   **entry,
1765         int             syncstate
1766 )
1767 {
1768         Entry           *e = NULL;
1769         BerElement      *ber = NULL;
1770         Modifications   tmp;
1771         Modifications   *mod;
1772         Modifications   **modtail = modlist;
1773
1774         const char      *text;
1775         char txtbuf[SLAP_TEXT_BUFLEN];
1776         size_t textlen = sizeof txtbuf;
1777
1778         struct berval   bdn = BER_BVNULL, dn, ndn;
1779         int             rc, is_ctx;
1780
1781         *modlist = NULL;
1782
1783         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1784                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1785                         "Message type should be entry (%d)",
1786                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1787                 return -1;
1788         }
1789
1790         op->o_tag = LDAP_REQ_ADD;
1791
1792         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1793         if ( rc != LDAP_SUCCESS ) {
1794                 Debug( LDAP_DEBUG_ANY,
1795                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1796                         si->si_ridtxt, rc, 0 );
1797                 return rc;
1798         }
1799
1800         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1801                 /* NOTE: this could be done even before decoding the DN,
1802                  * although encoding errors wouldn't be detected */
1803                 rc = LDAP_SUCCESS;
1804                 goto done;
1805         }
1806
1807         if ( entry == NULL ) {
1808                 return -1;
1809         }
1810
1811         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1812         ber_dupbv( &op->o_req_dn, &dn );
1813         ber_dupbv( &op->o_req_ndn, &ndn );
1814         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1815         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1816
1817         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1818
1819         e = entry_alloc();
1820         e->e_name = op->o_req_dn;
1821         e->e_nname = op->o_req_ndn;
1822
1823         while ( ber_remaining( ber ) ) {
1824                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1825                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1826                 {
1827                         break;
1828                 }
1829
1830                 /* Drop all updates to the contextCSN of the context entry
1831                  * (ITS#4622, etc.)
1832                  */
1833                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1834                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1835                         ber_bvarray_free( tmp.sml_values );
1836                         continue;
1837                 }
1838
1839                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1840
1841                 mod->sml_op = LDAP_MOD_REPLACE;
1842                 mod->sml_flags = 0;
1843                 mod->sml_next = NULL;
1844                 mod->sml_desc = NULL;
1845                 mod->sml_type = tmp.sml_type;
1846                 mod->sml_values = tmp.sml_values;
1847                 mod->sml_nvalues = NULL;
1848                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1849
1850                 *modtail = mod;
1851                 modtail = &mod->sml_next;
1852         }
1853
1854         if ( *modlist == NULL ) {
1855                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1856                         si->si_ridtxt, 0, 0 );
1857                 rc = -1;
1858                 goto done;
1859         }
1860
1861         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1862
1863         if ( rc != LDAP_SUCCESS ) {
1864                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1865                         si->si_ridtxt, text, 0 );
1866                 goto done;
1867         }
1868
1869         /* Strip out dynamically generated attrs */
1870         for ( modtail = modlist; *modtail ; ) {
1871                 mod = *modtail;
1872                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1873                         *modtail = mod->sml_next;
1874                         slap_mod_free( &mod->sml_mod, 0 );
1875                         ch_free( mod );
1876                 } else {
1877                         modtail = &mod->sml_next;
1878                 }
1879         }
1880
1881         /* Strip out attrs in exattrs list */
1882         for ( modtail = modlist; *modtail ; ) {
1883                 mod = *modtail;
1884                 if ( ldap_charray_inlist( si->si_exattrs,
1885                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1886                 {
1887                         *modtail = mod->sml_next;
1888                         slap_mod_free( &mod->sml_mod, 0 );
1889                         ch_free( mod );
1890                 } else {
1891                         modtail = &mod->sml_next;
1892                 }
1893         }
1894
1895         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1896         if( rc != LDAP_SUCCESS ) {
1897                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1898                         si->si_ridtxt, text, 0 );
1899         }
1900
1901 done:
1902         ber_free( ber, 0 );
1903         if ( rc != LDAP_SUCCESS ) {
1904                 if ( e ) {
1905                         entry_free( e );
1906                         e = NULL;
1907                 }
1908         }
1909         if ( entry )
1910                 *entry = e;
1911
1912         return rc;
1913 }
1914
1915 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1916
1917 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1918  * entry if a previous refresh was interrupted before sending us a new
1919  * context state. We try to compare the new entry to the existing entry
1920  * and ignore the new entry if they are the same.
1921  *
1922  * Also, we may get an update where the entryDN has changed, due to
1923  * a ModDn on the provider. We detect this as well, so we can issue
1924  * the corresponding operation locally.
1925  *
1926  * In the case of a modify, we get a list of all the attributes
1927  * in the original entry. Rather than deleting the entry and re-adding it,
1928  * we issue a Modify request that deletes all the attributes and adds all
1929  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1930  * entry.
1931  *
1932  * We otherwise distinguish ModDN from Modify; in the case of
1933  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1934  * operational attributes from the entry, and do a regular ModDN.
1935  */
1936 typedef struct dninfo {
1937         Entry *new_entry;
1938         struct berval dn;
1939         struct berval ndn;
1940         int renamed;    /* Was an existing entry renamed? */
1941         int delOldRDN;  /* Was old RDN deleted? */
1942         Modifications **modlist;        /* the modlist we received */
1943         Modifications *mods;    /* the modlist we compared */
1944 } dninfo;
1945
1946 /* return 1 if inserted, 0 otherwise */
1947 static int
1948 avl_presentlist_insert(
1949         syncinfo_t* si,
1950         struct berval *syncUUID )
1951 {
1952         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1953
1954         syncuuid_bv->bv_len = syncUUID->bv_len;
1955         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1956         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1957         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1958
1959         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1960                 syncuuid_cmp, avl_dup_error ) )
1961         {
1962                 ch_free( syncuuid_bv );
1963                 return 0;
1964         }
1965
1966         return 1;
1967 }
1968
1969 static int
1970 syncrepl_entry(
1971         syncinfo_t* si,
1972         Operation *op,
1973         Entry* entry,
1974         Modifications** modlist,
1975         int syncstate,
1976         struct berval* syncUUID,
1977         struct berval* syncCSN )
1978 {
1979         Backend *be = op->o_bd;
1980         slap_callback   cb = { NULL, NULL, NULL, NULL };
1981         int syncuuid_inserted = 0;
1982         struct berval   syncUUID_strrep = BER_BVNULL;
1983
1984         SlapReply       rs_search = {REP_RESULT};
1985         SlapReply       rs_delete = {REP_RESULT};
1986         SlapReply       rs_add = {REP_RESULT};
1987         SlapReply       rs_modify = {REP_RESULT};
1988         Filter f = {0};
1989         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1990         int rc = LDAP_SUCCESS;
1991
1992         struct berval pdn = BER_BVNULL;
1993         dninfo dni = {0};
1994         int     retry = 1;
1995         int     freecsn = 1;
1996
1997         Debug( LDAP_DEBUG_SYNC,
1998                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1999                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2000
2001         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2002                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2003                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2004                 }
2005         }
2006
2007         if ( syncstate == LDAP_SYNC_PRESENT ) {
2008                 return 0;
2009         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2010                 if ( entry == NULL ) {
2011                         return 0;
2012                 }
2013         }
2014
2015         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2016         if ( syncstate != LDAP_SYNC_DELETE ) {
2017                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2018
2019                 if ( a == NULL ) {
2020                         /* add if missing */
2021                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2022                                 &syncUUID_strrep, syncUUID );
2023
2024                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2025                         /* replace only if necessary */
2026                         if ( a->a_nvals != a->a_vals ) {
2027                                 ber_memfree( a->a_nvals[0].bv_val );
2028                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2029                         }
2030                         ber_memfree( a->a_vals[0].bv_val );
2031                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2032                 }
2033         }
2034
2035         f.f_choice = LDAP_FILTER_EQUALITY;
2036         f.f_ava = &ava;
2037         ava.aa_desc = slap_schema.si_ad_entryUUID;
2038         ava.aa_value = *syncUUID;
2039
2040         if ( syncuuid_inserted ) {
2041                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2042                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2043         }
2044         op->ors_filter = &f;
2045
2046         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2047         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2048                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2049         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2050         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2051                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2052         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2053         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2054
2055         op->o_tag = LDAP_REQ_SEARCH;
2056         op->ors_scope = LDAP_SCOPE_SUBTREE;
2057         op->ors_deref = LDAP_DEREF_NEVER;
2058
2059         /* get the entry for this UUID */
2060         op->o_req_dn = si->si_base;
2061         op->o_req_ndn = si->si_base;
2062
2063         op->o_time = slap_get_time();
2064         op->ors_tlimit = SLAP_NO_LIMIT;
2065         op->ors_slimit = 1;
2066
2067         op->ors_attrs = slap_anlist_all_attributes;
2068         op->ors_attrsonly = 0;
2069
2070         /* set callback function */
2071         op->o_callback = &cb;
2072         cb.sc_response = dn_callback;
2073         cb.sc_private = &dni;
2074         dni.new_entry = entry;
2075         dni.modlist = modlist;
2076
2077         if ( limits_check( op, &rs_search ) == 0 ) {
2078                 rc = be->be_search( op, &rs_search );
2079                 Debug( LDAP_DEBUG_SYNC,
2080                                 "syncrepl_entry: %s be_search (%d)\n",
2081                                 si->si_ridtxt, rc, 0 );
2082         }
2083
2084         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2085                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2086         }
2087
2088         cb.sc_response = null_callback;
2089         cb.sc_private = si;
2090
2091         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2092                 Debug( LDAP_DEBUG_SYNC,
2093                                 "syncrepl_entry: %s %s\n",
2094                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2095         } else {
2096                 Debug( LDAP_DEBUG_SYNC,
2097                                 "syncrepl_entry: %s %s\n",
2098                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2099         }
2100
2101         assert( BER_BVISNULL( &op->o_csn ) );
2102         if ( syncCSN ) {
2103                 slap_queue_csn( op, syncCSN );
2104         }
2105
2106         slap_op_time( &op->o_time, &op->o_tincr );
2107         switch ( syncstate ) {
2108         case LDAP_SYNC_ADD:
2109         case LDAP_SYNC_MODIFY:
2110                 if ( BER_BVISNULL( &op->o_csn ))
2111                 {
2112
2113                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2114                         if ( a ) {
2115                                 /* FIXME: op->o_csn is assumed to be
2116                                  * on the thread's slab; this needs
2117                                  * to be cleared ASAP.
2118                                  * What happens if already present?
2119                                  */
2120                                 assert( BER_BVISNULL( &op->o_csn ) );
2121                                 op->o_csn = a->a_vals[0];
2122                                 freecsn = 0;
2123                         }
2124                 }
2125 retry_add:;
2126                 if ( BER_BVISNULL( &dni.dn ) ) {
2127
2128                         op->o_req_dn = entry->e_name;
2129                         op->o_req_ndn = entry->e_nname;
2130                         op->o_tag = LDAP_REQ_ADD;
2131                         op->ora_e = entry;
2132                         op->o_bd = si->si_wbe;
2133
2134                         rc = op->o_bd->be_add( op, &rs_add );
2135                         Debug( LDAP_DEBUG_SYNC,
2136                                         "syncrepl_entry: %s be_add (%d)\n",
2137                                         si->si_ridtxt, rc, 0 );
2138                         switch ( rs_add.sr_err ) {
2139                         case LDAP_SUCCESS:
2140                                 if ( op->ora_e == entry ) {
2141                                         be_entry_release_w( op, entry );
2142                                 }
2143                                 entry = NULL;
2144                                 break;
2145
2146                         case LDAP_REFERRAL:
2147                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2148                          * only if the suffix entry is not present */
2149                         case LDAP_NO_SUCH_OBJECT:
2150                                 rc = syncrepl_add_glue( op, entry );
2151                                 entry = NULL;
2152                                 break;
2153
2154                         /* if an entry was added via syncrepl_add_glue(),
2155                          * it likely has no entryUUID, so the previous
2156                          * be_search() doesn't find it.  In this case,
2157                          * give syncrepl a chance to modify it. Also
2158                          * allow for entries that were recreated with the
2159                          * same DN but a different entryUUID.
2160                          */
2161                         case LDAP_ALREADY_EXISTS:
2162                                 if ( retry ) {
2163                                         Operation       op2 = *op;
2164                                         SlapReply       rs2 = { 0 };
2165                                         slap_callback   cb2 = { 0 };
2166
2167                                         op2.o_bd = be;
2168                                         op2.o_tag = LDAP_REQ_SEARCH;
2169                                         op2.o_req_dn = entry->e_name;
2170                                         op2.o_req_ndn = entry->e_nname;
2171                                         op2.ors_scope = LDAP_SCOPE_BASE;
2172                                         op2.ors_deref = LDAP_DEREF_NEVER;
2173                                         op2.ors_attrs = slap_anlist_all_attributes;
2174                                         op2.ors_attrsonly = 0;
2175                                         op2.ors_limit = NULL;
2176                                         op2.ors_slimit = 1;
2177                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2178
2179                                         f.f_choice = LDAP_FILTER_PRESENT;
2180                                         f.f_desc = slap_schema.si_ad_objectClass;
2181                                         op2.ors_filter = &f;
2182                                         op2.ors_filterstr = generic_filterstr;
2183
2184                                         op2.o_callback = &cb2;
2185                                         cb2.sc_response = dn_callback;
2186                                         cb2.sc_private = &dni;
2187
2188                                         rc = be->be_search( &op2, &rs2 );
2189                                         if ( rc ) goto done;
2190
2191                                         retry = 0;
2192                                         slap_op_time( &op->o_time, &op->o_tincr );
2193                                         goto retry_add;
2194                                 }
2195                                 /* FALLTHRU */
2196
2197                         default:
2198                                 Debug( LDAP_DEBUG_ANY,
2199                                         "syncrepl_entry: %s be_add failed (%d)\n",
2200                                         si->si_ridtxt, rs_add.sr_err, 0 );
2201                                 break;
2202                         }
2203                         op->o_bd = be;
2204                         goto done;
2205                 }
2206                 /* FALLTHRU */
2207                 op->o_req_dn = dni.dn;
2208                 op->o_req_ndn = dni.ndn;
2209                 if ( dni.renamed ) {
2210                         struct berval noldp, newp, nnewp;
2211
2212                         op->o_tag = LDAP_REQ_MODRDN;
2213                         dnRdn( &entry->e_name, &op->orr_newrdn );
2214                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2215
2216                         dnParent( &dni.ndn, &noldp );
2217                         dnParent( &entry->e_nname, &nnewp );
2218                         if ( !dn_match( &noldp, &nnewp ) ) {
2219                                 dnParent( &entry->e_name, &newp );
2220                                 op->orr_newSup = &newp;
2221                                 op->orr_nnewSup = &nnewp;
2222                         } else {
2223                                 op->orr_newSup = NULL;
2224                                 op->orr_nnewSup = NULL;
2225                         }
2226                         op->orr_deleteoldrdn = dni.delOldRDN;
2227                         op->orr_modlist = NULL;
2228                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2229                                 goto done;
2230                         }
2231
2232                         /* RDNs must be NUL-terminated for back-ldap */
2233                         noldp = op->orr_newrdn;
2234                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2235                         noldp = op->orr_nnewrdn;
2236                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2237
2238                         /* Setup opattrs too */
2239                         {
2240                                 static AttributeDescription *nullattr = NULL;
2241                                 static AttributeDescription **const opattrs[] = {
2242                                         &slap_schema.si_ad_entryCSN,
2243                                         &slap_schema.si_ad_modifiersName,
2244                                         &slap_schema.si_ad_modifyTimestamp,
2245                                         &nullattr
2246                                 };
2247                                 AttributeDescription *opattr;
2248                                 Modifications *mod, **modtail, **ml;
2249                                 int i;
2250
2251                                 for ( mod = op->orr_modlist;
2252                                         mod->sml_next;
2253                                         mod = mod->sml_next )
2254                                         ;
2255                                 modtail = &mod->sml_next;
2256
2257                                 /* pull mod off incoming modlist, append to orr_modlist */
2258                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2259                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2260                                         {
2261                                                 if ( (*ml)->sml_desc == opattr ) {
2262                                                         mod = *ml;
2263                                                         *ml = mod->sml_next;
2264                                                         mod->sml_next = NULL;
2265                                                         *modtail = mod;
2266                                                         modtail = &mod->sml_next;
2267                                                         break;
2268                                                 }
2269                                         }
2270                                 }
2271                         }
2272                         op->o_bd = si->si_wbe;
2273                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2274                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2275                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2276
2277                         slap_mods_free( op->orr_modlist, 1 );
2278                         Debug( LDAP_DEBUG_SYNC,
2279                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2280                                         si->si_ridtxt, rc, 0 );
2281                         op->o_bd = be;
2282                         goto done;
2283                 }
2284                 if ( dni.mods ) {
2285                         op->o_tag = LDAP_REQ_MODIFY;
2286                         op->orm_modlist = dni.mods;
2287                         op->orm_no_opattrs = 1;
2288                         op->o_bd = si->si_wbe;
2289
2290                         rc = op->o_bd->be_modify( op, &rs_modify );
2291                         slap_mods_free( op->orm_modlist, 1 );
2292                         op->orm_no_opattrs = 0;
2293                         Debug( LDAP_DEBUG_SYNC,
2294                                         "syncrepl_entry: %s be_modify (%d)\n",
2295                                         si->si_ridtxt, rc, 0 );
2296                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2297                                 Debug( LDAP_DEBUG_ANY,
2298                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2299                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2300                         }
2301                         op->o_bd = be;
2302                 } else {
2303                         Debug( LDAP_DEBUG_SYNC,
2304                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2305                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2306                 }
2307                 goto done;
2308         case LDAP_SYNC_DELETE :
2309                 if ( !BER_BVISNULL( &dni.dn ) ) {
2310                         op->o_req_dn = dni.dn;
2311                         op->o_req_ndn = dni.ndn;
2312                         op->o_tag = LDAP_REQ_DELETE;
2313                         op->o_bd = si->si_wbe;
2314                         rc = op->o_bd->be_delete( op, &rs_delete );
2315                         Debug( LDAP_DEBUG_SYNC,
2316                                         "syncrepl_entry: %s be_delete (%d)\n",
2317                                         si->si_ridtxt, rc, 0 );
2318
2319                         while ( rs_delete.sr_err == LDAP_SUCCESS
2320                                 && op->o_delete_glue_parent ) {
2321                                 op->o_delete_glue_parent = 0;
2322                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2323                                         slap_callback cb = { NULL };
2324                                         cb.sc_response = slap_null_cb;
2325                                         dnParent( &op->o_req_ndn, &pdn );
2326                                         op->o_req_dn = pdn;
2327                                         op->o_req_ndn = pdn;
2328                                         op->o_callback = &cb;
2329                                         op->o_bd->be_delete( op, &rs_delete );
2330                                 } else {
2331                                         break;
2332                                 }
2333                         }
2334                         op->o_bd = be;
2335                 }
2336                 goto done;
2337
2338         default :
2339                 Debug( LDAP_DEBUG_ANY,
2340                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2341                 goto done;
2342         }
2343
2344 done:
2345         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2346                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2347                 BER_BVZERO( &syncUUID_strrep );
2348         }
2349         if ( !BER_BVISNULL( &dni.ndn ) ) {
2350                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2351         }
2352         if ( !BER_BVISNULL( &dni.dn ) ) {
2353                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2354         }
2355         if ( entry ) {
2356                 entry_free( entry );
2357         }
2358         if ( syncCSN ) {
2359                 slap_graduate_commit_csn( op );
2360         }
2361         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2362                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2363         }
2364         BER_BVZERO( &op->o_csn );
2365         return rc;
2366 }
2367
2368 static struct berval gcbva[] = {
2369         BER_BVC("top"),
2370         BER_BVC("glue"),
2371         BER_BVNULL
2372 };
2373
2374 #define NP_DELETE_ONE   2
2375
2376 static void
2377 syncrepl_del_nonpresent(
2378         Operation *op,
2379         syncinfo_t *si,
2380         BerVarray uuids,
2381         struct sync_cookie *sc,
2382         int m )
2383 {
2384         Backend* be = op->o_bd;
2385         slap_callback   cb = { NULL };
2386         SlapReply       rs_search = {REP_RESULT};
2387         SlapReply       rs_delete = {REP_RESULT};
2388         SlapReply       rs_modify = {REP_RESULT};
2389         struct nonpresent_entry *np_list, *np_prev;
2390         int rc;
2391         AttributeName   an[2];
2392
2393         struct berval pdn = BER_BVNULL;
2394         struct berval csn;
2395
2396         op->o_req_dn = si->si_base;
2397         op->o_req_ndn = si->si_base;
2398
2399         cb.sc_response = nonpresent_callback;
2400         cb.sc_private = si;
2401
2402         op->o_callback = &cb;
2403         op->o_tag = LDAP_REQ_SEARCH;
2404         op->ors_scope = si->si_scope;
2405         op->ors_deref = LDAP_DEREF_NEVER;
2406         op->o_time = slap_get_time();
2407         op->ors_tlimit = SLAP_NO_LIMIT;
2408
2409
2410         if ( uuids ) {
2411                 Filter uf;
2412                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2413                 int i;
2414
2415                 op->ors_attrsonly = 1;
2416                 op->ors_attrs = slap_anlist_no_attrs;
2417                 op->ors_limit = NULL;
2418                 op->ors_filter = &uf;
2419
2420                 uf.f_ava = &eq;
2421                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2422                 uf.f_next = NULL;
2423                 uf.f_choice = LDAP_FILTER_EQUALITY;
2424                 si->si_refreshDelete |= NP_DELETE_ONE;
2425
2426                 for (i=0; uuids[i].bv_val; i++) {
2427                         op->ors_slimit = 1;
2428                         uf.f_av_value = uuids[i];
2429                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2430                         rc = be->be_search( op, &rs_search );
2431                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2432                 }
2433                 si->si_refreshDelete ^= NP_DELETE_ONE;
2434         } else {
2435                 Filter *cf, *of;
2436
2437                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2438                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2439                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2440                 op->ors_attrs = an;
2441                 op->ors_slimit = SLAP_NO_LIMIT;
2442                 op->ors_attrsonly = 0;
2443                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2444                 /* In multimaster, updates can continue to arrive while
2445                  * we're searching. Limit the search result to entries
2446                  * older than all of our cookie CSNs.
2447                  */
2448                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2449                         Filter *f;
2450                         int i;
2451                         cf = op->o_tmpalloc( (sc->numcsns+1) * sizeof(Filter) +
2452                                 sc->numcsns * sizeof(AttributeAssertion), op->o_tmpmemctx );
2453                         f = cf;
2454                         f->f_choice = LDAP_FILTER_AND;
2455                         f->f_next = NULL;
2456                         f->f_and = f+1;
2457                         of = f->f_and;
2458                         for ( i=0; i<sc->numcsns; i++ ) {
2459                                 f = of;
2460                                 f->f_choice = LDAP_FILTER_LE;
2461                                 f->f_ava = (AttributeAssertion *)(f+1);
2462                                 f->f_av_desc = slap_schema.si_ad_entryCSN;
2463                                 f->f_av_value = sc->ctxcsn[i];
2464                                 f->f_next = (Filter *)(f->f_ava+1);
2465                                 of = f->f_next;
2466                         }
2467                         f->f_next = op->ors_filter;
2468                         of = op->ors_filter;
2469                         op->ors_filter = cf;
2470                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2471                 } else {
2472                         cf = NULL;
2473                         op->ors_filterstr = si->si_filterstr;
2474                 }
2475                 op->o_nocaching = 1;
2476
2477                 if ( limits_check( op, &rs_search ) == 0 ) {
2478                         rc = be->be_search( op, &rs_search );
2479                 }
2480                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2481                         op->o_tmpfree( cf, op->o_tmpmemctx );
2482                         op->ors_filter = of;
2483                 }
2484                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2485
2486         }
2487
2488         op->o_nocaching = 0;
2489
2490         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2491
2492                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2493                         csn = sc->ctxcsn[m];
2494                 } else {
2495                         csn = si->si_syncCookie.ctxcsn[0];
2496                 }
2497
2498                 op->o_bd = si->si_wbe;
2499                 slap_queue_csn( op, &csn );
2500
2501                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2502                 while ( np_list != NULL ) {
2503                         LDAP_LIST_REMOVE( np_list, npe_link );
2504                         np_prev = np_list;
2505                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2506                         op->o_tag = LDAP_REQ_DELETE;
2507                         op->o_callback = &cb;
2508                         cb.sc_response = null_callback;
2509                         cb.sc_private = si;
2510                         op->o_req_dn = *np_prev->npe_name;
2511                         op->o_req_ndn = *np_prev->npe_nname;
2512                         rc = op->o_bd->be_delete( op, &rs_delete );
2513                         Debug( LDAP_DEBUG_SYNC,
2514                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2515                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2516
2517                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2518                                 Modifications mod1, mod2;
2519                                 mod1.sml_op = LDAP_MOD_REPLACE;
2520                                 mod1.sml_flags = 0;
2521                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2522                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2523                                 mod1.sml_numvals = 2;
2524                                 mod1.sml_values = &gcbva[0];
2525                                 mod1.sml_nvalues = NULL;
2526                                 mod1.sml_next = &mod2;
2527
2528                                 mod2.sml_op = LDAP_MOD_REPLACE;
2529                                 mod2.sml_flags = 0;
2530                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2531                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2532                                 mod2.sml_numvals = 1;
2533                                 mod2.sml_values = &gcbva[1];
2534                                 mod2.sml_nvalues = NULL;
2535                                 mod2.sml_next = NULL;
2536
2537                                 op->o_tag = LDAP_REQ_MODIFY;
2538                                 op->orm_modlist = &mod1;
2539
2540                                 rc = op->o_bd->be_modify( op, &rs_modify );
2541                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2542                         }
2543
2544                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2545                                         op->o_delete_glue_parent ) {
2546                                 op->o_delete_glue_parent = 0;
2547                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2548                                         slap_callback cb = { NULL };
2549                                         cb.sc_response = slap_null_cb;
2550                                         dnParent( &op->o_req_ndn, &pdn );
2551                                         op->o_req_dn = pdn;
2552                                         op->o_req_ndn = pdn;
2553                                         op->o_callback = &cb;
2554                                         /* give it a root privil ? */
2555                                         op->o_bd->be_delete( op, &rs_delete );
2556                                 } else {
2557                                         break;
2558                                 }
2559                         }
2560
2561                         op->o_delete_glue_parent = 0;
2562
2563                         ber_bvfree( np_prev->npe_name );
2564                         ber_bvfree( np_prev->npe_nname );
2565                         ch_free( np_prev );
2566
2567                         if ( slapd_shutdown ) {
2568                                 break;
2569                         }
2570                 }
2571
2572                 slap_graduate_commit_csn( op );
2573                 op->o_bd = be;
2574
2575                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2576                 BER_BVZERO( &op->o_csn );
2577         }
2578
2579         return;
2580 }
2581
2582 int
2583 syncrepl_add_glue(
2584         Operation* op,
2585         Entry *e )
2586 {
2587         Backend *be = op->o_bd;
2588         slap_callback cb = { NULL };
2589         Attribute       *a;
2590         int     rc;
2591         int suffrdns;
2592         int i;
2593         struct berval dn = BER_BVNULL;
2594         struct berval ndn = BER_BVNULL;
2595         Entry   *glue;
2596         SlapReply       rs_add = {REP_RESULT};
2597         struct berval   ptr, nptr;
2598         char            *comma;
2599
2600         op->o_tag = LDAP_REQ_ADD;
2601         op->o_callback = &cb;
2602         cb.sc_response = null_callback;
2603         cb.sc_private = NULL;
2604
2605         dn = e->e_name;
2606         ndn = e->e_nname;
2607
2608         /* count RDNs in suffix */
2609         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2610                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2611                         comma++;
2612                         ptr.bv_len -= comma - ptr.bv_val;
2613                         ptr.bv_val = comma;
2614                         i++;
2615                 }
2616                 suffrdns = i;
2617         } else {
2618                 /* suffix is "" */
2619                 suffrdns = 0;
2620         }
2621
2622         /* Start with BE suffix */
2623         ptr = dn;
2624         for ( i = 0; i < suffrdns; i++ ) {
2625                 comma = ber_bvrchr( &ptr, ',' );
2626                 if ( comma != NULL ) {
2627                         ptr.bv_len = comma - ptr.bv_val;
2628                 } else {
2629                         ptr.bv_len = 0;
2630                         break;
2631                 }
2632         }
2633
2634         if ( !BER_BVISEMPTY( &ptr ) ) {
2635                 dn.bv_len -= ptr.bv_len + 1;
2636                 dn.bv_val += ptr.bv_len + 1;
2637         }
2638
2639         /* the normalizedDNs are always the same length, no counting
2640          * required.
2641          */
2642         nptr = ndn;
2643         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2644                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2645                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2646
2647                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2648
2649         } else {
2650                 nptr.bv_len = 0;
2651         }
2652
2653         while ( ndn.bv_val > e->e_nname.bv_val ) {
2654                 glue = entry_alloc();
2655                 ber_dupbv( &glue->e_name, &dn );
2656                 ber_dupbv( &glue->e_nname, &ndn );
2657
2658                 a = attr_alloc( slap_schema.si_ad_objectClass );
2659
2660                 a->a_numvals = 2;
2661                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2662                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2663                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2664                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2665
2666                 a->a_nvals = a->a_vals;
2667
2668                 a->a_next = glue->e_attrs;
2669                 glue->e_attrs = a;
2670
2671                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2672
2673                 a->a_numvals = 1;
2674                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2675                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2676                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2677
2678                 a->a_nvals = a->a_vals;
2679
2680                 a->a_next = glue->e_attrs;
2681                 glue->e_attrs = a;
2682
2683                 op->o_req_dn = glue->e_name;
2684                 op->o_req_ndn = glue->e_nname;
2685                 op->ora_e = glue;
2686                 rc = be->be_add ( op, &rs_add );
2687                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2688                         if ( op->ora_e == glue )
2689                                 be_entry_release_w( op, glue );
2690                 } else {
2691                 /* incl. ALREADY EXIST */
2692                         entry_free( glue );
2693                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2694                                 entry_free( e );
2695                                 return rc;
2696                         }
2697                 }
2698
2699                 /* Move to next child */
2700                 comma = ber_bvrchr( &ptr, ',' );
2701                 if ( comma == NULL ) {
2702                         break;
2703                 }
2704                 ptr.bv_len = comma - ptr.bv_val;
2705
2706                 dn.bv_val = ++comma;
2707                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2708
2709                 comma = ber_bvrchr( &nptr, ',' );
2710                 assert( comma != NULL );
2711                 nptr.bv_len = comma - nptr.bv_val;
2712
2713                 ndn.bv_val = ++comma;
2714                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2715         }
2716
2717         op->o_req_dn = e->e_name;
2718         op->o_req_ndn = e->e_nname;
2719         op->ora_e = e;
2720         rc = be->be_add ( op, &rs_add );
2721         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2722                 if ( op->ora_e == e )
2723                         be_entry_release_w( op, e );
2724         } else {
2725                 entry_free( e );
2726         }
2727
2728         return rc;
2729 }
2730
2731 static int
2732 syncrepl_updateCookie(
2733         syncinfo_t *si,
2734         Operation *op,
2735         struct berval *pdn,
2736         struct sync_cookie *syncCookie )
2737 {
2738         Backend *be = op->o_bd;
2739         Modifications mod;
2740         struct berval first = BER_BVNULL;
2741
2742         int rc, i, j, len;
2743
2744         slap_callback cb = { NULL };
2745         SlapReply       rs_modify = {REP_RESULT};
2746
2747         mod.sml_op = LDAP_MOD_REPLACE;
2748         mod.sml_desc = slap_schema.si_ad_contextCSN;
2749         mod.sml_type = mod.sml_desc->ad_cname;
2750         mod.sml_flags = SLAP_MOD_INTERNAL;
2751         mod.sml_nvalues = NULL;
2752         mod.sml_next = NULL;
2753
2754         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2755
2756         /* clone the cookieState CSNs so we can Replace the whole thing */
2757         mod.sml_numvals = si->si_cookieState->cs_num;
2758         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2759         for ( i=0; i<mod.sml_numvals; i++ )
2760                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2761         BER_BVZERO( &mod.sml_values[i] );
2762
2763         /* find any CSNs in the syncCookie that are newer than the cookieState */
2764         for ( i=0; i<syncCookie->numcsns; i++ ) {
2765                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2766                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2767                                 continue;
2768                         len = syncCookie->ctxcsn[i].bv_len;
2769                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2770                                 len = si->si_cookieState->cs_vals[j].bv_len;
2771                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2772                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2773                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2774                                 if ( BER_BVISNULL( &first ) ) {
2775                                         first = syncCookie->ctxcsn[i];
2776
2777                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2778                                 {
2779                                         first = syncCookie->ctxcsn[i];
2780                                 }
2781                         }
2782                         break;
2783                 }
2784                 /* there was no match for this SID, it's a new CSN */
2785                 if ( j == si->si_cookieState->cs_num ) {
2786                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2787                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2788                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2789                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2790                         if ( BER_BVISNULL( &first ) ) {
2791                                 first = syncCookie->ctxcsn[i];
2792                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2793                         {
2794                                 first = syncCookie->ctxcsn[i];
2795                         }
2796                 }
2797         }
2798         /* Should never happen, ITS#5065 */
2799         if ( BER_BVISNULL( &first )) {
2800                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2801                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2802                 return 0;
2803         }
2804         op->o_bd = si->si_wbe;
2805         slap_queue_csn( op, &first );
2806
2807         op->o_tag = LDAP_REQ_MODIFY;
2808
2809         cb.sc_response = null_callback;
2810         cb.sc_private = si;
2811
2812         op->o_callback = &cb;
2813         op->o_req_dn = op->o_bd->be_suffix[0];
2814         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2815
2816         /* update contextCSN */
2817         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2818
2819         op->orm_modlist = &mod;
2820         op->orm_no_opattrs = 1;
2821         rc = op->o_bd->be_modify( op, &rs_modify );
2822         op->orm_no_opattrs = 0;
2823         op->o_msgid = 0;
2824
2825         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2826                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2827                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2828                 /* If we replaced any old values */
2829                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2830                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2831                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2832                                                 &mod.sml_values[i] );
2833                 }
2834                 /* Handle any added values */
2835                 if ( i < mod.sml_numvals ) {
2836                         si->si_cookieState->cs_num = mod.sml_numvals;
2837                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2838                         free( si->si_cookieState->cs_sids );
2839                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2840                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2841                 }
2842
2843                 si->si_cookieState->cs_age++;
2844                 si->si_cookieAge = si->si_cookieState->cs_age;
2845         } else {
2846                 Debug( LDAP_DEBUG_ANY,
2847                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2848                         si->si_ridtxt, rs_modify.sr_err, 0 );
2849         }
2850         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2851
2852         op->o_bd = be;
2853         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2854         BER_BVZERO( &op->o_csn );
2855         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
2856         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2857
2858         return rc;
2859 }
2860
2861 static void
2862 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2863         Modifications ***mret, Modifications ***mcur )
2864 {
2865         int i, j;
2866         Modifications *mod, **modtail;
2867
2868         modtail = *mret;
2869
2870         if ( old ) {
2871                 int n, o, nn, no;
2872                 struct berval **adds, **dels;
2873                 /* count old and new */
2874                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2875                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2876
2877                 /* there MUST be both old and new values */
2878                 assert( o != 0 );
2879                 assert( n != 0 );
2880                 j = 0;
2881
2882                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2883                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2884
2885                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2886                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2887
2888                 nn = n; no = o;
2889
2890                 for ( i=0; i<o; i++ ) {
2891                         for ( j=0; j<n; j++ ) {
2892                                 if ( !adds[j] )
2893                                         continue;
2894                                 if ( bvmatch( dels[i], adds[j] ) ) {
2895                                         no--;
2896                                         nn--;
2897                                         adds[j] = NULL;
2898                                         dels[i] = NULL;
2899                                         break;
2900                                 }
2901                         }
2902                 }
2903
2904                 /* Don't delete/add an objectClass, always use the replace op.
2905                  * Modify would fail if provider has replaced entry with a new,
2906                  * and the new explicitly includes a superior of a class that was
2907                  * only included implicitly in the old entry.  Ref ITS#5517.
2908                  */
2909                 if ( nn && no < o && old->a_desc == slap_schema.si_ad_objectClass )
2910                         no = o;
2911
2912                 i = j;
2913                 /* all old values were deleted, just use the replace op */
2914                 if ( no == o ) {
2915                         i = j-1;
2916                 } else if ( no ) {
2917                 /* delete some values */
2918                         mod = ch_malloc( sizeof( Modifications ) );
2919                         mod->sml_op = LDAP_MOD_DELETE;
2920                         mod->sml_flags = 0;
2921                         mod->sml_desc = old->a_desc;
2922                         mod->sml_type = mod->sml_desc->ad_cname;
2923                         mod->sml_numvals = no;
2924                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2925                         if ( old->a_vals != old->a_nvals ) {
2926                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2927                         } else {
2928                                 mod->sml_nvalues = NULL;
2929                         }
2930                         j = 0;
2931                         for ( i = 0; i < o; i++ ) {
2932                                 if ( !dels[i] ) continue;
2933                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2934                                 if ( mod->sml_nvalues ) {
2935                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2936                                 }
2937                                 j++;
2938                         }
2939                         BER_BVZERO( &mod->sml_values[j] );
2940                         if ( mod->sml_nvalues ) {
2941                                 BER_BVZERO( &mod->sml_nvalues[j] );
2942                         }
2943                         *modtail = mod;
2944                         modtail = &mod->sml_next;
2945                         i = j;
2946                 }
2947                 op->o_tmpfree( dels, op->o_tmpmemctx );
2948                 /* some values were added */
2949                 if ( nn && no < o ) {
2950                         mod = ch_malloc( sizeof( Modifications ) );
2951                         mod->sml_op = LDAP_MOD_ADD;
2952                         mod->sml_flags = 0;
2953                         mod->sml_desc = old->a_desc;
2954                         mod->sml_type = mod->sml_desc->ad_cname;
2955                         mod->sml_numvals = nn;
2956                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2957                         if ( old->a_vals != old->a_nvals ) {
2958                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2959                         } else {
2960                                 mod->sml_nvalues = NULL;
2961                         }
2962                         j = 0;
2963                         for ( i = 0; i < n; i++ ) {
2964                                 if ( !adds[i] ) continue;
2965                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2966                                 if ( mod->sml_nvalues ) {
2967                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2968                                 }
2969                                 j++;
2970                         }
2971                         BER_BVZERO( &mod->sml_values[j] );
2972                         if ( mod->sml_nvalues ) {
2973                                 BER_BVZERO( &mod->sml_nvalues[j] );
2974                         }
2975                         *modtail = mod;
2976                         modtail = &mod->sml_next;
2977                         i = j;
2978                 }
2979                 op->o_tmpfree( adds, op->o_tmpmemctx );
2980         } else {
2981                 /* new attr, just use the new mod */
2982                 i = 0;
2983                 j = 1;
2984         }
2985         /* advance to next element */
2986         mod = **mcur;
2987         if ( mod ) {
2988                 if ( i != j ) {
2989                         **mcur = mod->sml_next;
2990                         *modtail = mod;
2991                         modtail = &mod->sml_next;
2992                 } else {
2993                         *mcur = &mod->sml_next;
2994                 }
2995         }
2996         *mret = modtail;
2997 }
2998
2999 static int
3000 dn_callback(
3001         Operation*      op,
3002         SlapReply*      rs )
3003 {
3004         dninfo *dni = op->o_callback->sc_private;
3005
3006         if ( rs->sr_type == REP_SEARCH ) {
3007                 if ( !BER_BVISNULL( &dni->dn ) ) {
3008                         Debug( LDAP_DEBUG_ANY,
3009                                 "dn_callback : consistency error - "
3010                                 "entryUUID is not unique\n", 0, 0, 0 );
3011                 } else {
3012                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3013                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3014                         /* If there is a new entry, see if it differs from the old.
3015                          * We compare the non-normalized values so that cosmetic changes
3016                          * in the provider are always propagated.
3017                          */
3018                         if ( dni->new_entry ) {
3019                                 Modifications **modtail, **ml;
3020                                 Attribute *old, *new;
3021                                 int is_ctx;
3022
3023                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3024                                         &op->o_bd->be_nsuffix[0] );
3025
3026                                 /* Did the DN change?
3027                                  */
3028                                 if ( !dn_match( &rs->sr_entry->e_name,
3029                                                 &dni->new_entry->e_name ) )
3030                                 {
3031                                         struct berval oldRDN, oldVal;
3032                                         AttributeDescription *ad = NULL;
3033                                         Attribute *a;
3034
3035                                         dni->renamed = 1;
3036                                         /* See if the oldRDN was deleted */
3037                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3038                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3039                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3040                                                 oldRDN.bv_val );
3041                                         oldRDN.bv_len -= oldVal.bv_len + 2;
3042                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3043                                         a = attr_find( dni->new_entry->e_attrs, ad );
3044                                         if ( !a || attr_valfind( a,
3045                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3046                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3047                                                 SLAP_MR_VALUE_OF_SYNTAX,
3048                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3049                                         {
3050                                                 dni->delOldRDN = 1;
3051                                         }
3052                                         /* OK, this was just a modDN, we're done */
3053                                         return LDAP_SUCCESS;
3054                                 }
3055
3056                                 modtail = &dni->mods;
3057                                 ml = dni->modlist;
3058
3059                                 /* Make sure new entry is actually newer than old entry */
3060                                 old = attr_find( rs->sr_entry->e_attrs,
3061                                         slap_schema.si_ad_entryCSN );
3062                                 new = attr_find( dni->new_entry->e_attrs,
3063                                         slap_schema.si_ad_entryCSN );
3064                                 if ( new && old ) {
3065                                         int rc, len = old->a_vals[0].bv_len;
3066                                         if ( len > new->a_vals[0].bv_len )
3067                                                 len = new->a_vals[0].bv_len;
3068                                         rc = memcmp( old->a_vals[0].bv_val,
3069                                                 new->a_vals[0].bv_val, len );
3070                                         if ( rc > 0 ) {
3071                                                 Debug( LDAP_DEBUG_SYNC,
3072                                                         "dn_callback : new entry is older than ours "
3073                                                         "%s ours %s, new %s\n",
3074                                                         rs->sr_entry->e_name.bv_val,
3075                                                         old->a_vals[0].bv_val,
3076                                                         new->a_vals[0].bv_val );
3077                                                 return LDAP_SUCCESS;
3078                                         } else if ( rc == 0 ) {
3079                                                 Debug( LDAP_DEBUG_SYNC,
3080                                                         "dn_callback : entries have identical CSN "
3081                                                         "%s %s\n",
3082                                                         rs->sr_entry->e_name.bv_val,
3083                                                         old->a_vals[0].bv_val, 0 );
3084                                                 return LDAP_SUCCESS;
3085                                         }
3086                                 }
3087
3088                                 /* We assume that attributes are saved in the same order
3089                                  * in the remote and local databases. So if we walk through
3090                                  * the attributeDescriptions one by one they should match in
3091                                  * lock step. If not, look for an add or delete.
3092                                  */
3093                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3094                                                 old && new; )
3095                                 {
3096                                         /* If we've seen this before, use its mod now */
3097                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3098                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3099                                                 new = new->a_next;
3100                                                 continue;
3101                                         }
3102                                         /* Skip contextCSN */
3103                                         if ( is_ctx && old->a_desc ==
3104                                                 slap_schema.si_ad_contextCSN ) {
3105                                                 old = old->a_next;
3106                                                 continue;
3107                                         }
3108
3109                                         if ( old->a_desc != new->a_desc ) {
3110                                                 Modifications *mod;
3111                                                 Attribute *tmp;
3112
3113                                                 /* If it's just been re-added later,
3114                                                  * remember that we've seen it.
3115                                                  */
3116                                                 tmp = attr_find( new, old->a_desc );
3117                                                 if ( tmp ) {
3118                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3119                                                 } else {
3120                                                         /* If it's a new attribute, pull it in.
3121                                                          */
3122                                                         tmp = attr_find( old, new->a_desc );
3123                                                         if ( !tmp ) {
3124                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3125                                                                 new = new->a_next;
3126                                                                 continue;
3127                                                         }
3128                                                         /* Delete old attr */
3129                                                         mod = ch_malloc( sizeof( Modifications ) );
3130                                                         mod->sml_op = LDAP_MOD_DELETE;
3131                                                         mod->sml_flags = 0;
3132                                                         mod->sml_desc = old->a_desc;
3133                                                         mod->sml_type = mod->sml_desc->ad_cname;
3134                                                         mod->sml_numvals = 0;
3135                                                         mod->sml_values = NULL;
3136                                                         mod->sml_nvalues = NULL;
3137                                                         *modtail = mod;
3138                                                         modtail = &mod->sml_next;
3139                                                 }
3140                                                 old = old->a_next;
3141                                                 continue;
3142                                         }
3143                                         /* kludge - always update modifiersName so that it
3144                                          * stays co-located with the other mod opattrs. But only
3145                                          * if we know there are other valid mods.
3146                                          */
3147                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3148                                                 dni->mods )
3149                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3150                                         else
3151                                                 attr_cmp( op, old, new, &modtail, &ml );
3152                                         new = new->a_next;
3153                                         old = old->a_next;
3154                                 }
3155                                 *modtail = *ml;
3156                                 *ml = NULL;
3157                         }
3158                 }
3159         } else if ( rs->sr_type == REP_RESULT ) {
3160                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3161                         Debug( LDAP_DEBUG_ANY,
3162                                 "dn_callback : consistency error - "
3163                                 "entryUUID is not unique\n", 0, 0, 0 );
3164                 }
3165         }
3166
3167         return LDAP_SUCCESS;
3168 }
3169
3170 static int
3171 nonpresent_callback(
3172         Operation*      op,
3173         SlapReply*      rs )
3174 {
3175         syncinfo_t *si = op->o_callback->sc_private;
3176         Attribute *a;
3177         int count = 0;
3178         struct berval* present_uuid = NULL;
3179         struct nonpresent_entry *np_entry;
3180
3181         if ( rs->sr_type == REP_RESULT ) {
3182                 count = avl_free( si->si_presentlist, ch_free );
3183                 si->si_presentlist = NULL;
3184
3185         } else if ( rs->sr_type == REP_SEARCH ) {
3186                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3187                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3188
3189                         if ( a ) {
3190                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3191                                         syncuuid_cmp );
3192                         }
3193
3194                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3195                                 char buf[sizeof("rid=999 not")];
3196
3197                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3198                                         present_uuid ? "got" : "not" );
3199
3200                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3201                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3202                         }
3203
3204                         if ( a == NULL ) return 0;
3205                 }
3206
3207                 if ( present_uuid == NULL ) {
3208                         np_entry = (struct nonpresent_entry *)
3209                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3210                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3211                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3212                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3213
3214                 } else {
3215                         avl_delete( &si->si_presentlist,
3216                                 &a->a_nvals[0], syncuuid_cmp );
3217                         ch_free( present_uuid );
3218                 }
3219         }
3220         return LDAP_SUCCESS;
3221 }
3222
3223 static int
3224 null_callback(
3225         Operation*      op,
3226         SlapReply*      rs )
3227 {
3228         if ( rs->sr_err != LDAP_SUCCESS &&
3229                 rs->sr_err != LDAP_REFERRAL &&
3230                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3231                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3232                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3233         {
3234                 Debug( LDAP_DEBUG_ANY,
3235                         "null_callback : error code 0x%x\n",
3236                         rs->sr_err, 0, 0 );
3237         }
3238         return LDAP_SUCCESS;
3239 }
3240
3241 static struct berval *
3242 slap_uuidstr_from_normalized(
3243         struct berval* uuidstr,
3244         struct berval* normalized,
3245         void *ctx )
3246 {
3247 #if 0
3248         struct berval *new;
3249         unsigned char nibble;
3250         int i, d = 0;
3251
3252         if ( normalized == NULL ) return NULL;
3253         if ( normalized->bv_len != 16 ) return NULL;
3254
3255         if ( uuidstr ) {
3256                 new = uuidstr;
3257         } else {
3258                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3259                 if ( new == NULL ) {
3260                         return NULL;
3261                 }
3262         }
3263
3264         new->bv_len = 36;
3265
3266         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3267                 if ( new != uuidstr ) {
3268                         slap_sl_free( new, ctx );
3269                 }
3270                 return NULL;
3271         }
3272
3273         for ( i = 0; i < 16; i++ ) {
3274                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3275                         new->bv_val[(i<<1)+d] = '-';
3276                         d += 1;
3277                 }
3278
3279                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3280                 if ( nibble < 10 ) {
3281                         new->bv_val[(i<<1)+d] = nibble + '0';
3282                 } else {
3283                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3284                 }
3285
3286                 nibble = (normalized->bv_val[i]) & 0xF;
3287                 if ( nibble < 10 ) {
3288                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3289                 } else {
3290                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3291                 }
3292         }
3293
3294         new->bv_val[new->bv_len] = '\0';
3295         return new;
3296 #endif
3297
3298         struct berval   *new;
3299         int             rc = 0;
3300
3301         if ( normalized == NULL ) return NULL;
3302         if ( normalized->bv_len != 16 ) return NULL;
3303
3304         if ( uuidstr ) {
3305                 new = uuidstr;
3306
3307         } else {
3308                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3309                 if ( new == NULL ) {
3310                         return NULL;
3311                 }
3312         }
3313
3314         new->bv_len = 36;
3315
3316         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3317                 rc = 1;
3318                 goto done;
3319         }
3320
3321         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3322                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3323
3324 done:;
3325         if ( rc == -1 ) {
3326                 if ( new != NULL ) {
3327                         if ( new->bv_val != NULL ) {
3328                                 slap_sl_free( new->bv_val, ctx );
3329                         }
3330
3331                         if ( new != uuidstr ) {
3332                                 slap_sl_free( new, ctx );
3333                         }
3334                 }
3335                 new = NULL;
3336
3337         } else {
3338                 new->bv_len = rc;
3339         }
3340
3341         return new;
3342 }
3343
3344 static int
3345 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3346 {
3347         const struct berval *uuid1 = v_uuid1;
3348         const struct berval *uuid2 = v_uuid2;
3349         int rc = uuid1->bv_len - uuid2->bv_len;
3350         if ( rc ) return rc;
3351         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3352 }
3353
3354 void
3355 syncinfo_free( syncinfo_t *sie, int free_all )
3356 {
3357         syncinfo_t *si_next;
3358
3359         if ( free_all && sie->si_cookieState ) {
3360                 ch_free( sie->si_cookieState->cs_sids );
3361                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3362                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3363                 ch_free( sie->si_cookieState );
3364         }
3365         do {
3366                 si_next = sie->si_next;
3367
3368                 if ( sie->si_ld ) {
3369                         if ( sie->si_conn ) {
3370                                 connection_client_stop( sie->si_conn );
3371                                 sie->si_conn = NULL;
3372                         }
3373                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3374                 }
3375
3376                 /* re-fetch it, in case it was already removed */
3377                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3378                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3379                 if ( sie->si_re ) {
3380                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3381                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3382                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3383                 }
3384
3385                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3386                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3387
3388                 bindconf_free( &sie->si_bindconf );
3389
3390                 if ( sie->si_filterstr.bv_val ) {
3391                         ch_free( sie->si_filterstr.bv_val );
3392                 }
3393                 if ( sie->si_logfilterstr.bv_val ) {
3394                         ch_free( sie->si_logfilterstr.bv_val );
3395                 }
3396                 if ( sie->si_base.bv_val ) {
3397                         ch_free( sie->si_base.bv_val );
3398                 }
3399                 if ( sie->si_logbase.bv_val ) {
3400                         ch_free( sie->si_logbase.bv_val );
3401                 }
3402                 if ( sie->si_attrs ) {
3403                         int i = 0;
3404                         while ( sie->si_attrs[i] != NULL ) {
3405                                 ch_free( sie->si_attrs[i] );
3406                                 i++;
3407                         }
3408                         ch_free( sie->si_attrs );
3409                 }
3410                 if ( sie->si_exattrs ) {
3411                         int i = 0;
3412                         while ( sie->si_exattrs[i] != NULL ) {
3413                                 ch_free( sie->si_exattrs[i] );
3414                                 i++;
3415                         }
3416                         ch_free( sie->si_exattrs );
3417                 }
3418                 if ( sie->si_anlist ) {
3419                         int i = 0;
3420                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3421                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3422                                 i++;
3423                         }
3424                         ch_free( sie->si_anlist );
3425                 }
3426                 if ( sie->si_exanlist ) {
3427                         int i = 0;
3428                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3429                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3430                                 i++;
3431                         }
3432                         ch_free( sie->si_exanlist );
3433                 }
3434                 if ( sie->si_retryinterval ) {
3435                         ch_free( sie->si_retryinterval );
3436                 }
3437                 if ( sie->si_retrynum ) {
3438                         ch_free( sie->si_retrynum );
3439                 }
3440                 if ( sie->si_retrynum_init ) {
3441                         ch_free( sie->si_retrynum_init );
3442                 }
3443                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3444                 if ( sie->si_presentlist ) {
3445                     avl_free( sie->si_presentlist, ch_free );
3446                 }
3447                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3448                         struct nonpresent_entry* npe;
3449                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3450                         LDAP_LIST_REMOVE( npe, npe_link );
3451                         if ( npe->npe_name ) {
3452                                 if ( npe->npe_name->bv_val ) {
3453                                         ch_free( npe->npe_name->bv_val );
3454                                 }
3455                                 ch_free( npe->npe_name );
3456                         }
3457                         if ( npe->npe_nname ) {
3458                                 if ( npe->npe_nname->bv_val ) {
3459                                         ch_free( npe->npe_nname->bv_val );
3460                                 }
3461                                 ch_free( npe->npe_nname );
3462                         }
3463                         ch_free( npe );
3464                 }
3465                 ch_free( sie );
3466                 sie = si_next;
3467         } while ( free_all && si_next );
3468 }
3469
3470
3471
3472 /* NOTE: used & documented in slapd.conf(5) */
3473 #define IDSTR                   "rid"
3474 #define PROVIDERSTR             "provider"
3475 #define SCHEMASTR               "schemachecking"
3476 #define FILTERSTR               "filter"
3477 #define SEARCHBASESTR           "searchbase"
3478 #define SCOPESTR                "scope"
3479 #define ATTRSONLYSTR            "attrsonly"
3480 #define ATTRSSTR                "attrs"
3481 #define TYPESTR                 "type"
3482 #define INTERVALSTR             "interval"
3483 #define RETRYSTR                "retry"
3484 #define SLIMITSTR               "sizelimit"
3485 #define TLIMITSTR               "timelimit"
3486 #define SYNCDATASTR             "syncdata"
3487 #define LOGBASESTR              "logbase"
3488 #define LOGFILTERSTR    "logfilter"
3489
3490 /* FIXME: undocumented */
3491 #define EXATTRSSTR              "exattrs"
3492 #define MANAGEDSAITSTR          "manageDSAit"
3493
3494 /* mandatory */
3495 #define GOT_ID                  0x0001
3496 #define GOT_PROVIDER    0x0002
3497 #define GOT_BASE                0x0004
3498
3499 /* check */
3500 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3501
3502 static struct {
3503         struct berval key;
3504         int val;
3505 } scopes[] = {
3506         { BER_BVC("base"), LDAP_SCOPE_BASE },
3507         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3508         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3509         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3510         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3511         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3512         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3513         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3514         { BER_BVNULL, 0 }
3515 };
3516
3517 static slap_verbmasks datamodes[] = {
3518         { BER_BVC("default"), SYNCDATA_DEFAULT },
3519         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3520         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3521         { BER_BVNULL, 0 }
3522 };
3523
3524 static int
3525 parse_syncrepl_line(
3526         ConfigArgs      *c,
3527         syncinfo_t      *si )
3528 {
3529         int     gots = 0;
3530         int     i;
3531         char    *val;
3532
3533         for ( i = 1; i < c->argc; i++ ) {
3534                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3535                                         STRLENOF( IDSTR "=" ) ) )
3536                 {
3537                         int tmp;
3538                         /* '\0' string terminator accounts for '=' */
3539                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3540                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3541                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3542                                         "Error: parse_syncrepl_line: "
3543                                         "unable to parse syncrepl id \"%s\"", val );
3544                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3545                                 return -1;
3546                         }
3547                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3548                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3549                                         "Error: parse_syncrepl_line: "
3550                                         "syncrepl id %d is out of range [0..4095]", tmp );
3551                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3552                                 return -1;
3553                         }
3554                         si->si_rid = tmp;
3555                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3556                         gots |= GOT_ID;
3557                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3558                                         STRLENOF( PROVIDERSTR "=" ) ) )
3559                 {
3560                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3561                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3562                         gots |= GOT_PROVIDER;
3563                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3564                                         STRLENOF( SCHEMASTR "=" ) ) )
3565                 {
3566                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3567                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3568                                 si->si_schemachecking = 1;
3569                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3570                                 si->si_schemachecking = 0;
3571                         } else {
3572                                 si->si_schemachecking = 1;
3573                         }
3574                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3575                                         STRLENOF( FILTERSTR "=" ) ) )
3576                 {
3577                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3578                         if ( si->si_filterstr.bv_val )
3579                                 ch_free( si->si_filterstr.bv_val );
3580                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3581                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3582                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3583                 {
3584                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3585                         if ( si->si_logfilterstr.bv_val )
3586                                 ch_free( si->si_logfilterstr.bv_val );
3587                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3588                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3589                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3590                 {
3591                         struct berval   bv;
3592                         int             rc;
3593
3594                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3595                         if ( si->si_base.bv_val ) {
3596                                 ch_free( si->si_base.bv_val );
3597                         }
3598                         ber_str2bv( val, 0, 0, &bv );
3599                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3600                         if ( rc != LDAP_SUCCESS ) {
3601                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3602                                         "Invalid base DN \"%s\": %d (%s)",
3603                                         val, rc, ldap_err2string( rc ) );
3604                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3605                                 return -1;
3606                         }
3607                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3608                                 ch_free( si->si_base.bv_val );
3609                                 BER_BVZERO( &si->si_base );
3610                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3611                                         "Base DN \"%s\" is not within the database naming context",
3612                                         val );
3613                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3614                                 return -1;
3615                         }
3616                         gots |= GOT_BASE;
3617                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3618                                         STRLENOF( LOGBASESTR "=" ) ) )
3619                 {
3620                         struct berval   bv;
3621                         int             rc;
3622
3623                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3624                         if ( si->si_logbase.bv_val ) {
3625                                 ch_free( si->si_logbase.bv_val );
3626                         }
3627                         ber_str2bv( val, 0, 0, &bv );
3628                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3629                         if ( rc != LDAP_SUCCESS ) {
3630                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3631                                         "Invalid logbase DN \"%s\": %d (%s)",
3632                                         val, rc, ldap_err2string( rc ) );
3633                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3634                                 return -1;
3635                         }
3636                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3637                                         STRLENOF( SCOPESTR "=" ) ) )
3638                 {
3639                         int j;
3640                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3641                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3642                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3643                                         si->si_scope = scopes[j].val;
3644                                         break;
3645                                 }
3646                         }
3647                         if ( BER_BVISNULL(&scopes[j].key) ) {
3648                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3649                                         "Error: parse_syncrepl_line: "
3650                                         "unknown scope \"%s\"", val);
3651                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3652                                 return -1;
3653                         }
3654                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3655                                         STRLENOF( ATTRSONLYSTR ) ) )
3656                 {
3657                         si->si_attrsonly = 1;
3658                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3659                                         STRLENOF( ATTRSSTR "=" ) ) )
3660                 {
3661                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3662                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3663                                 char *attr_fname;
3664                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3665                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3666                                 if ( si->si_anlist == NULL ) {
3667                                         ch_free( attr_fname );
3668                                         return -1;
3669                                 }
3670                                 si->si_anfile = attr_fname;
3671                         } else {
3672                                 char *str, *s, *next;
3673                                 const char *delimstr = " ,\t";
3674                                 str = ch_strdup( val );
3675                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3676                                                 s != NULL;
3677                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3678                                 {
3679                                         if ( strlen(s) == 1 && *s == '*' ) {
3680                                                 si->si_allattrs = 1;
3681                                                 val[ s - str ] = delimstr[0];
3682                                         }
3683                                         if ( strlen(s) == 1 && *s == '+' ) {
3684                                                 si->si_allopattrs = 1;
3685                                                 val [ s - str ] = delimstr[0];
3686                                         }
3687                                 }
3688                                 ch_free( str );
3689                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3690                                 if ( si->si_anlist == NULL ) {
3691                                         return -1;
3692                                 }
3693                         }
3694                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3695                                         STRLENOF( EXATTRSSTR "=" ) ) )
3696                 {
3697                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3698                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3699                                 char *attr_fname;
3700                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3701                                 si->si_exanlist = file2anlist(
3702                                         si->si_exanlist, attr_fname, " ,\t" );
3703                                 if ( si->si_exanlist == NULL ) {
3704                                         ch_free( attr_fname );
3705                                         return -1;
3706                                 }
3707                                 ch_free( attr_fname );
3708                         } else {
3709                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3710                                 if ( si->si_exanlist == NULL ) {
3711                                         return -1;
3712                                 }
3713                         }
3714                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3715                                         STRLENOF( TYPESTR "=" ) ) )
3716                 {
3717                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3718                         if ( !strncasecmp( val, "refreshOnly",
3719                                                 STRLENOF("refreshOnly") ) )
3720                         {
3721                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3722                         } else if ( !strncasecmp( val, "refreshAndPersist",
3723                                                 STRLENOF("refreshAndPersist") ) )
3724                         {
3725                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3726                                 si->si_interval = 60;
3727                         } else {
3728                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3729                                         "Error: parse_syncrepl_line: "
3730                                         "unknown sync type \"%s\"", val);
3731                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3732                                 return -1;
3733                         }
3734                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3735                                         STRLENOF( INTERVALSTR "=" ) ) )
3736                 {
3737                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3738                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3739                                 si->si_interval = 0;
3740                         } else if ( strchr( val, ':' ) != NULL ) {
3741                                 char *next, *ptr = val;
3742                                 int dd, hh, mm, ss;
3743
3744                                 dd = strtol( ptr, &next, 10 );
3745                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
3746                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3747                                                 "Error: parse_syncrepl_line: "
3748                                                 "invalid interval \"%s\", unable to parse days", val );
3749                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3750                                         return -1;
3751                                 }
3752                                 ptr = next + 1;
3753                                 hh = strtol( ptr, &next, 10 );
3754                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
3755                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3756                                                 "Error: parse_syncrepl_line: "
3757                                                 "invalid interval \"%s\", unable to parse hours", val );
3758                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3759                                         return -1;
3760                                 }
3761                                 ptr = next + 1;
3762                                 mm = strtol( ptr, &next, 10 );
3763                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
3764                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3765                                                 "Error: parse_syncrepl_line: "
3766                                                 "invalid interval \"%s\", unable to parse minutes", val );
3767                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3768                                         return -1;
3769                                 }
3770                                 ptr = next + 1;
3771                                 ss = strtol( ptr, &next, 10 );
3772                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
3773                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3774                                                 "Error: parse_syncrepl_line: "
3775                                                 "invalid interval \"%s\", unable to parse seconds", val );
3776                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3777                                         return -1;
3778                                 }
3779                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3780                         } else {
3781                                 unsigned long   t;
3782
3783                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3784                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3785                                                 "Error: parse_syncrepl_line: "
3786                                                 "invalid interval \"%s\"", val );
3787                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3788                                         return -1;
3789                                 }
3790                                 si->si_interval = (time_t)t;
3791                         }
3792                         if ( si->si_interval < 0 ) {
3793                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3794                                         "Error: parse_syncrepl_line: "
3795                                         "invalid interval \"%ld\"",
3796                                         (long) si->si_interval);
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 ], RETRYSTR "=",
3801                                         STRLENOF( RETRYSTR "=" ) ) )
3802                 {
3803                         char **retry_list;
3804                         int j, k, n;
3805
3806                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3807                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3808                         retry_list[0] = NULL;
3809
3810                         slap_str2clist( &retry_list, val, " ,\t" );
3811
3812                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3813                         n = k / 2;
3814                         if ( k % 2 ) {
3815                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3816                                         "Error: incomplete syncrepl retry list" );
3817                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3818                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3819                                         ch_free( retry_list[k] );
3820                                 }
3821                                 ch_free( retry_list );
3822                                 return 1;
3823                         }
3824                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3825                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3826                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3827                         for ( j = 0; j < n; j++ ) {
3828                                 unsigned long   t;
3829                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3830                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3831                                                 "Error: invalid retry interval \"%s\" (#%d)",
3832                                                 retry_list[j*2], j );
3833                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3834                                         /* do some cleanup */
3835                                         return 1;
3836                                 }
3837                                 si->si_retryinterval[j] = (time_t)t;
3838                                 if ( *retry_list[j*2+1] == '+' ) {
3839                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3840                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3841                                         j++;
3842                                         break;
3843                                 } else {
3844                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3845                                                         || si->si_retrynum_init[j] <= 0 )
3846                                         {
3847                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3848                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3849                                                         retry_list[j*2+1], j );
3850                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3851                                                 /* do some cleanup */
3852                                                 return 1;
3853                                         }
3854                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3855                                                         || si->si_retrynum[j] <= 0 )
3856                                         {
3857                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3858                                                         "Error: invalid retry number \"%s\" (#%d)",
3859                                                         retry_list[j*2+1], j );
3860                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3861                                                 /* do some cleanup */
3862                                                 return 1;
3863                                         }
3864                                 }
3865                         }
3866                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3867                         si->si_retrynum[j] = RETRYNUM_TAIL;
3868                         si->si_retryinterval[j] = 0;
3869
3870                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3871                                 ch_free( retry_list[k] );
3872                         }
3873                         ch_free( retry_list );
3874                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3875                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3876                 {
3877                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3878                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3879                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3880                         {
3881                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3882                                         "invalid manageDSAit value \"%s\".\n",
3883                                         val );
3884                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3885                                 return 1;
3886                         }
3887                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3888                                         STRLENOF( SLIMITSTR "=") ) )
3889                 {
3890                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3891                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3892                                 si->si_slimit = 0;
3893
3894                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3895                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3896                                         "invalid size limit value \"%s\".\n",
3897                                         val );
3898                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3899                                 return 1;
3900                         }
3901                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3902                                         STRLENOF( TLIMITSTR "=" ) ) )
3903                 {
3904                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3905                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3906                                 si->si_tlimit = 0;
3907
3908                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3909                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3910                                         "invalid time limit value \"%s\".\n",
3911                                         val );
3912                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3913                                 return 1;
3914                         }
3915                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3916                                         STRLENOF( SYNCDATASTR "=" ) ) )
3917                 {
3918                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3919                         si->si_syncdata = verb_to_mask( val, datamodes );
3920                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3921                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3922                                 "Error: parse_syncrepl_line: "
3923                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3924                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3925                         return -1;
3926                 }
3927         }
3928
3929         if ( gots != GOT_ALL ) {
3930                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3931                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3932                         gots & GOT_ID ? "" : " "IDSTR,
3933                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3934                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3935                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3936                 return -1;
3937         }
3938
3939         return 0;
3940 }
3941
3942 static int
3943 add_syncrepl(
3944         ConfigArgs *c )
3945 {
3946         syncinfo_t *si;
3947         int     rc = 0;
3948
3949         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3950                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3951                         "operations required for syncrepl", c->be->be_type );
3952                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3953                 return 1;
3954         }
3955         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3956                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3957                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3958                 return 1;
3959         }
3960         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3961
3962         if ( si == NULL ) {
3963                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3964                 return 1;
3965         }
3966
3967         si->si_bindconf.sb_tls = SB_TLS_OFF;
3968         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3969         si->si_schemachecking = 0;
3970         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3971                 &si->si_filterstr );
3972         si->si_base.bv_val = NULL;
3973         si->si_scope = LDAP_SCOPE_SUBTREE;
3974         si->si_attrsonly = 0;
3975         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3976         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3977         si->si_attrs = NULL;
3978         si->si_allattrs = 0;
3979         si->si_allopattrs = 0;
3980         si->si_exattrs = NULL;
3981         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3982         si->si_interval = 86400;
3983         si->si_retryinterval = NULL;
3984         si->si_retrynum_init = NULL;
3985         si->si_retrynum = NULL;
3986         si->si_manageDSAit = 0;
3987         si->si_tlimit = 0;
3988         si->si_slimit = 0;
3989
3990         si->si_presentlist = NULL;
3991         LDAP_LIST_INIT( &si->si_nonpresentlist );
3992         ldap_pvt_thread_mutex_init( &si->si_mutex );
3993
3994         rc = parse_syncrepl_line( c, si );
3995
3996         if ( rc == 0 ) {
3997                 /* Must be LDAPv3 because we need controls */
3998                 switch ( si->si_bindconf.sb_version ) {
3999                 case 0:
4000                         /* not explicitly set */
4001                         si->si_bindconf.sb_version = LDAP_VERSION3;
4002                         break;
4003                 case 3:
4004                         /* explicitly set */
4005                         break;
4006                 default:
4007                         Debug( LDAP_DEBUG_ANY,
4008                                 "version %d incompatible with syncrepl\n",
4009                                 si->si_bindconf.sb_version, 0, 0 );
4010                         syncinfo_free( si, 0 );
4011                         return 1;
4012                 }
4013
4014                 si->si_be = c->be;
4015                 if ( slapMode & SLAP_SERVER_MODE ) {
4016                         Listener **l = slapd_get_listeners();
4017                         int isMe = 0;
4018
4019                         /* check if URL points to current server. If so, ignore
4020                          * this configuration. We require an exact match. Just
4021                          * in case they really want to do this, they can vary
4022                          * the case of the URL to allow it.
4023                          */
4024                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4025                                 int i;
4026                                 for ( i=0; l[i]; i++ ) {
4027                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4028                                                 isMe = 1;
4029                                                 break;
4030                                         }
4031                                 }
4032                         }
4033
4034                         if ( !isMe ) {
4035                                 init_syncrepl( si );
4036                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4037                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4038                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4039                                         si->si_ridtxt );
4040                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4041                                 if ( si->si_re )
4042                                         rc = config_sync_shadow( c ) ? -1 : 0;
4043                                 else
4044                                         rc = -1;
4045                         }
4046                 } else {
4047                         /* mirrormode still needs to see this flag in tool mode */
4048                         rc = config_sync_shadow( c ) ? -1 : 0;
4049                 }
4050         }
4051
4052 #ifdef HAVE_TLS
4053         /* Use main slapd defaults */
4054         bindconf_tls_defaults( &si->si_bindconf );
4055 #endif
4056         if ( rc < 0 ) {
4057                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4058                 syncinfo_free( si, 0 );
4059                 return 1;
4060         } else {
4061                 Debug( LDAP_DEBUG_CONFIG,
4062                         "Config: ** successfully added syncrepl \"%s\"\n",
4063                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4064                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4065                 if ( !si->si_schemachecking ) {
4066                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
4067                 }
4068                 if ( c->be->be_syncinfo ) {
4069                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4070                 } else {
4071                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4072                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4073                 }
4074                 si->si_next = c->be->be_syncinfo;
4075                 c->be->be_syncinfo = si;
4076                 return 0;
4077         }
4078 }
4079
4080 static void
4081 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4082 {
4083         struct berval bc, uri;
4084         char buf[BUFSIZ*2], *ptr;
4085         int i;
4086
4087 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
4088
4089         BER_BVZERO( bv );
4090
4091         /* temporarily inhibit bindconf from printing URI */
4092         uri = si->si_bindconf.sb_uri;
4093         BER_BVZERO( &si->si_bindconf.sb_uri );
4094         si->si_bindconf.sb_version = 0;
4095         bindconf_unparse( &si->si_bindconf, &bc );
4096         si->si_bindconf.sb_uri = uri;
4097         si->si_bindconf.sb_version = LDAP_VERSION3;
4098
4099         ptr = buf;
4100         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4101         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4102                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4103         if ( ptr - buf >= sizeof( buf ) ) return;
4104         if ( !BER_BVISNULL( &bc ) ) {
4105                 if ( WHATSLEFT <= bc.bv_len ) {
4106                         free( bc.bv_val );
4107                         return;
4108                 }
4109                 ptr = lutil_strcopy( ptr, bc.bv_val );
4110                 free( bc.bv_val );
4111         }
4112         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4113                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4114                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4115                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4116                 *ptr++ = '"';
4117         }
4118         if ( !BER_BVISNULL( &si->si_base ) ) {
4119                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4120                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4121                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4122                 *ptr++ = '"';
4123         }
4124         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4125                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4126                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4127                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4128                 *ptr++ = '"';
4129         }
4130         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4131                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4132                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4133                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4134                 *ptr++ = '"';
4135         }
4136         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4137                 if ( si->si_scope == scopes[i].val ) {
4138                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4139                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4140                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4141                         break;
4142                 }
4143         }
4144         if ( si->si_attrsonly ) {
4145                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4146                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4147         }
4148         if ( si->si_anfile ) {
4149                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4150                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4151                 ptr = lutil_strcopy( ptr, si->si_anfile );
4152                 *ptr++ = '"';
4153         } else if ( si->si_allattrs || si->si_allopattrs ||
4154                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4155         {
4156                 char *old;
4157
4158                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4159                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4160                 old = ptr;
4161                 /* FIXME: add check for overflow */
4162                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4163                 if ( si->si_allattrs ) {
4164                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4165                         if ( old != ptr ) *ptr++ = ',';
4166                         *ptr++ = '*';
4167                 }
4168                 if ( si->si_allopattrs ) {
4169                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4170                         if ( old != ptr ) *ptr++ = ',';
4171                         *ptr++ = '+';
4172                 }
4173                 *ptr++ = '"';
4174         }
4175         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4176                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4177                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4178                 /* FIXME: add check for overflow */
4179                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4180         }
4181         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4182         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4183         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4184
4185         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4186         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4187         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4188                 "refreshAndPersist" : "refreshOnly" );
4189
4190         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4191                 int dd, hh, mm, ss;
4192
4193                 dd = si->si_interval;
4194                 ss = dd % 60;
4195                 dd /= 60;
4196                 mm = dd % 60;
4197                 dd /= 60;
4198                 hh = dd % 24;
4199                 dd /= 24;
4200                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4201                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4202                 if ( ptr - buf >= sizeof( buf ) ) return;
4203         } else if ( si->si_retryinterval ) {
4204                 int space=0;
4205                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4206                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4207                 for (i=0; si->si_retryinterval[i]; i++) {
4208                         if ( space ) *ptr++ = ' ';
4209                         space = 1;
4210                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4211                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4212                                 *ptr++ = '+';
4213                         else
4214                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4215                 }
4216                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4217                 *ptr++ = '"';
4218         }
4219
4220         if ( si->si_slimit ) {
4221                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4222                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4223                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4224         }
4225
4226         if ( si->si_tlimit ) {
4227                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4228                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4229                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4230         }
4231
4232         if ( si->si_syncdata ) {
4233                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4234                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4235                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4236                         ptr = lutil_strcopy( ptr, bc.bv_val );
4237                 }
4238         }
4239         bc.bv_len = ptr - buf;
4240         bc.bv_val = buf;
4241         ber_dupbv( bv, &bc );
4242 }
4243
4244 int
4245 syncrepl_config( ConfigArgs *c )
4246 {
4247         if (c->op == SLAP_CONFIG_EMIT) {
4248                 if ( c->be->be_syncinfo ) {
4249                         struct berval bv;
4250                         syncinfo_t *si;
4251
4252                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4253                                 syncrepl_unparse( si, &bv );
4254                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4255                         }
4256                         return 0;
4257                 }
4258                 return 1;
4259         } else if ( c->op == LDAP_MOD_DELETE ) {
4260                 cookie_state *cs = NULL;
4261                 if ( c->be->be_syncinfo ) {
4262                         syncinfo_t *si, **sip;
4263                         int i;
4264
4265                         cs = c->be->be_syncinfo->si_cookieState;
4266                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4267                                 si = *sip;
4268                                 if ( c->valx == -1 || i == c->valx ) {
4269                                         int isrunning = 0;
4270                                         *sip = si->si_next;
4271                                         /* If the task is currently active, we have to leave
4272                                          * it running. It will exit on its own. This will only
4273                                          * happen when running on the cn=config DB.
4274                                          */
4275                                         if ( si->si_re ) {
4276                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4277                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4278                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4279                                         }
4280                                         if ( si->si_re && isrunning ) {
4281                                                 si->si_ctype = 0;
4282                                         } else {
4283                                                 syncinfo_free( si, 0 );
4284                                         }
4285                                         if ( i == c->valx )
4286                                                 break;
4287                                 } else {
4288                                         sip = &si->si_next;
4289                                 }
4290                         }
4291                 }
4292                 if ( !c->be->be_syncinfo ) {
4293                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4294                         if ( cs ) {
4295                                 ber_bvarray_free( cs->cs_vals );
4296                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4297                                 ch_free( cs );
4298                         }
4299                 }
4300                 return 0;
4301         }
4302         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4303                 Debug(LDAP_DEBUG_ANY, "%s: "
4304                         "syncrepl: database already shadowed.\n",
4305                         c->log, 0, 0);
4306                 return(1);
4307         } else {
4308                 return add_syncrepl( c );
4309         }
4310 }