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 2003-2009 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003-2008 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_refreshDone;
  97         int                     si_syncdata;
  98         int                     si_logstate;
  99         int                     si_got;
 100         ber_int_t       si_msgid;
 101         Avlnode                 *si_presentlist;
 102         LDAP                    *si_ld;
 103         Connection              *si_conn;
 104         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 105         ldap_pvt_thread_mutex_t si_mutex;
 106 } syncinfo_t;
 107
 108 static int syncuuid_cmp( const void *, const void * );
 109 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 110 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 111 static int syncrepl_message_to_op(
 112                                         syncinfo_t *, Operation *, LDAPMessage * );
 113 static int syncrepl_message_to_entry(
 114                                         syncinfo_t *, Operation *, LDAPMessage *,
 115                                         Modifications **, Entry **, int );
 116 static int syncrepl_entry(
 117                                         syncinfo_t *, Operation*, Entry*,
 118                                         Modifications**,int, struct berval*,
 119                                         struct berval *cookieCSN );
 120 static int syncrepl_updateCookie(
 121                                         syncinfo_t *, Operation *, struct berval *,
 122                                         struct sync_cookie * );
 123 static struct berval * slap_uuidstr_from_normalized(
 124                                         struct berval *, struct berval *, void * );
 125
 126 /* callback functions */
 127 static int dn_callback( Operation *, SlapReply * );
 128 static int nonpresent_callback( Operation *, SlapReply * );
 129 static int null_callback( Operation *, SlapReply * );
 130
 131 static AttributeDescription *sync_descs[4];
 132
 133 static const char *
 134 syncrepl_state2str( int state )
 135 {
 136         switch ( state ) {
 137         case LDAP_SYNC_PRESENT:
 138                 return "PRESENT";
 139
 140         case LDAP_SYNC_ADD:
 141                 return "ADD";
 142
 143         case LDAP_SYNC_MODIFY:
 144                 return "MODIFY";
 145
 146         case LDAP_SYNC_DELETE:
 147                 return "DELETE";
 148         }
 149
 150         return "UNKNOWN";
 151 }
 152
 153 static void
 154 init_syncrepl(syncinfo_t *si)
 155 {
 156         int i, j, k, l, n;
 157         char **attrs, **exattrs;
 158
 159         if ( !sync_descs[0] ) {
 160                 sync_descs[0] = slap_schema.si_ad_objectClass;
 161                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 162                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 163                 sync_descs[3] = NULL;
 164         }
 165
 166         if ( si->si_allattrs && si->si_allopattrs )
 167                 attrs = NULL;
 168         else
 169                 attrs = anlist2attrs( si->si_anlist );
 170
 171         if ( attrs ) {
 172                 if ( si->si_allattrs ) {
 173                         i = 0;
 174                         while ( attrs[i] ) {
 175                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 176                                         for ( j = i; attrs[j] != NULL; j++ ) {
 177                                                 if ( j == i )
 178                                                         ch_free( attrs[i] );
 179                                                 attrs[j] = attrs[j+1];
 180                                         }
 181                                 } else {
 182                                         i++;
 183                                 }
 184                         }
 185                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 186                         attrs[i] = ch_strdup("*");
 187                         attrs[i + 1] = NULL;
 188
 189                 } else if ( si->si_allopattrs ) {
 190                         i = 0;
 191                         while ( attrs[i] ) {
 192                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 193                                         for ( j = i; attrs[j] != NULL; j++ ) {
 194                                                 if ( j == i )
 195                                                         ch_free( attrs[i] );
 196                                                 attrs[j] = attrs[j+1];
 197                                         }
 198                                 } else {
 199                                         i++;
 200                                 }
 201                         }
 202                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 203                         attrs[i] = ch_strdup("+");
 204                         attrs[i + 1] = NULL;
 205                 }
 206
 207                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 208                         j = 0;
 209                         while ( attrs[j] ) {
 210                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 211                                         for ( k = j; attrs[k] != NULL; k++ ) {
 212                                                 if ( k == j )
 213                                                         ch_free( attrs[k] );
 214                                                 attrs[k] = attrs[k+1];
 215                                         }
 216                                 } else {
 217                                         j++;
 218                                 }
 219                         }
 220                 }
 221
 222                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 223
 224                 if ( si->si_allopattrs ) {
 225                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 226                 } else {
 227                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 228                 }
 229
 230                 /* Add Attributes */
 231                 if ( si->si_allopattrs ) {
 232                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 233                 } else {
 234                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 235                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 236                         }
 237                 }
 238                 attrs[ n ] = NULL;
 239
 240         } else {
 241
 242                 i = 0;
 243                 if ( si->si_allattrs == si->si_allopattrs ) {
 244                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 245                         attrs[i++] = ch_strdup( "*" );
 246                         attrs[i++] = ch_strdup( "+" );
 247                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 248                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 249                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 250                         attrs[i++] = ch_strdup( "*" );
 251                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 252                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 253                         }
 254                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 255                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 256                         attrs[i++] = ch_strdup( "+" );
 257                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 258                 }
 259                 attrs[i] = NULL;
 260         }
 261
 262         si->si_attrs = attrs;
 263
 264         exattrs = anlist2attrs( si->si_exanlist );
 265
 266         if ( exattrs ) {
 267                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 268
 269                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 270                         j = 0;
 271                         while ( exattrs[j] != NULL ) {
 272                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 273                                         ch_free( exattrs[j] );
 274                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 275                                                 exattrs[k] = exattrs[k+1];
 276                                         }
 277                                 } else {
 278                                         j++;
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 284                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 285                                 ObjectClass     *oc;
 286                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 287                                         k = 0;
 288                                         while ( oc->soc_required[k] ) {
 289                                                 if ( !strcmp( exattrs[i],
 290                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 291                                                         ch_free( exattrs[i] );
 292                                                         for ( l = i; exattrs[l]; l++ ) {
 293                                                                 exattrs[l] = exattrs[l+1];
 294                                                         }
 295                                                 } else {
 296                                                         k++;
 297                                                 }
 298                                         }
 299                                 }
 300                         }
 301                 }
 302
 303                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 304
 305                 if ( i != n )
 306                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 307         }
 308
 309         si->si_exattrs = exattrs;
 310 }
 311
 312 typedef struct logschema {
 313         struct berval ls_dn;
 314         struct berval ls_req;
 315         struct berval ls_mod;
 316         struct berval ls_newRdn;
 317         struct berval ls_delRdn;
 318         struct berval ls_newSup;
 319 } logschema;
 320
 321 static logschema changelog_sc = {
 322         BER_BVC("targetDN"),
 323         BER_BVC("changeType"),
 324         BER_BVC("changes"),
 325         BER_BVC("newRDN"),
 326         BER_BVC("deleteOldRDN"),
 327         BER_BVC("newSuperior")
 328 };
 329
 330 static logschema accesslog_sc = {
 331         BER_BVC("reqDN"),
 332         BER_BVC("reqType"),
 333         BER_BVC("reqMod"),
 334         BER_BVC("reqNewRDN"),
 335         BER_BVC("reqDeleteOldRDN"),
 336         BER_BVC("reqNewSuperior")
 337 };
 338
 339 static int
 340 ldap_sync_search(
 341         syncinfo_t *si,
 342         void *ctx )
 343 {
 344         BerElementBuffer berbuf;
 345         BerElement *ber = (BerElement *)&berbuf;
 346         LDAPControl c[3], *ctrls[4];
 347         int rc;
 348         int rhint;
 349         char *base;
 350         char **attrs, *lattrs[8];
 351         char *filter;
 352         int attrsonly;
 353         int scope;
 354
 355         /* setup LDAP SYNC control */
 356         ber_init2( ber, NULL, LBER_USE_DER );
 357         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 358
 359         /* If we're using a log but we have no state, then fallback to
 360          * normal mode for a full refresh.
 361          */
 362         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 363                 si->si_logstate = SYNCLOG_FALLBACK;
 364         }
 365
 366         /* Use the log parameters if we're in log mode */
 367         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 368                 logschema *ls;
 369                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 370                         ls = &accesslog_sc;
 371                 else
 372                         ls = &changelog_sc;
 373                 lattrs[0] = ls->ls_dn.bv_val;
 374                 lattrs[1] = ls->ls_req.bv_val;
 375                 lattrs[2] = ls->ls_mod.bv_val;
 376                 lattrs[3] = ls->ls_newRdn.bv_val;
 377                 lattrs[4] = ls->ls_delRdn.bv_val;
 378                 lattrs[5] = ls->ls_newSup.bv_val;
 379                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 380                 lattrs[7] = NULL;
 381
 382                 rhint = 0;
 383                 base = si->si_logbase.bv_val;
 384                 filter = si->si_logfilterstr.bv_val;
 385                 attrs = lattrs;
 386                 attrsonly = 0;
 387                 scope = LDAP_SCOPE_SUBTREE;
 388         } else {
 389                 rhint = 1;
 390                 base = si->si_base.bv_val;
 391                 filter = si->si_filterstr.bv_val;
 392                 attrs = si->si_attrs;
 393                 attrsonly = si->si_attrsonly;
 394                 scope = si->si_scope;
 395         }
 396         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 397                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 398         } else {
 399                 si->si_type = si->si_ctype;
 400         }
 401
 402         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 403         {
 404                 ber_printf( ber, "{eOb}",
 405                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 406         } else {
 407                 ber_printf( ber, "{eb}",
 408                         abs(si->si_type), rhint );
 409         }
 410
 411         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 412                 ber_free_buf( ber );
 413                 return rc;
 414         }
 415
 416         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 417         c[0].ldctl_iscritical = si->si_type < 0;
 418         ctrls[0] = &c[0];
 419
 420         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 421         BER_BVZERO( &c[1].ldctl_value );
 422         c[1].ldctl_iscritical = 1;
 423         ctrls[1] = &c[1];
 424
 425         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 426                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 427                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 428                 c[2].ldctl_iscritical = 1;
 429                 ctrls[2] = &c[2];
 430                 ctrls[3] = NULL;
 431         } else {
 432                 ctrls[2] = NULL;
 433         }
 434
 435         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 436                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 437         ber_free_buf( ber );
 438         return rc;
 439 }
 440
 441 static int
 442 check_syncprov(
 443         Operation *op,
 444         syncinfo_t *si )
 445 {
 446         AttributeName at[2];
 447         Attribute a = {0};
 448         Entry e = {0};
 449         SlapReply rs = {0};
 450         int i, j, changed = 0;
 451
 452         /* Look for contextCSN from syncprov overlay. If
 453          * there's no overlay, this will be a no-op. That means
 454          * this is a pure consumer, so local changes will not be
 455          * allowed, and all changes will already be reflected in
 456          * the cookieState.
 457          */
 458         a.a_desc = slap_schema.si_ad_contextCSN;
 459         e.e_attrs = &a;
 460         e.e_name = op->o_bd->be_suffix[0];
 461         e.e_nname = op->o_bd->be_nsuffix[0];
 462         at[0].an_name = a.a_desc->ad_cname;
 463         at[0].an_desc = a.a_desc;
 464         BER_BVZERO( &at[1].an_name );
 465         rs.sr_entry = &e;
 466         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 467         rs.sr_attrs = at;
 468         op->o_req_dn = e.e_name;
 469         op->o_req_ndn = e.e_nname;
 470
 471         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 472         i = backend_operational( op, &rs );
 473         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 474                 int num = a.a_numvals;
 475                 /* check for differences */
 476                 if ( num != si->si_cookieState->cs_num ) {
 477                         changed = 1;
 478                 } else {
 479                         for ( i=0; i<num; i++ ) {
 480                                 if ( ber_bvcmp( &a.a_nvals[i],
 481                                         &si->si_cookieState->cs_vals[i] )) {
 482                                         changed = 1;
 483                                         break;
 484                                 }
 485                         }
 486                 }
 487                 if ( changed ) {
 488                         ber_bvarray_free( si->si_cookieState->cs_vals );
 489                         ch_free( si->si_cookieState->cs_sids );
 490                         si->si_cookieState->cs_num = num;
 491                         si->si_cookieState->cs_vals = a.a_nvals;
 492                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 493                                 num, NULL );
 494                         si->si_cookieState->cs_age++;
 495                 } else {
 496                         ber_bvarray_free( a.a_nvals );
 497                 }
 498                 ber_bvarray_free( a.a_vals );
 499         }
 500         /* See if the cookieState has changed due to anything outside
 501          * this particular consumer. That includes other consumers in
 502          * the same context, or local changes detected above.
 503          */
 504         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 505                 si->si_cookieState->cs_age ) {
 506                 if ( !si->si_syncCookie.numcsns ) {
 507                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 508                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 509                                 si->si_cookieState->cs_vals, NULL );
 510                         changed = 1;
 511                 } else {
 512                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 513                                 /* bogus, just dup everything */
 514                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 515                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 516                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 517                                                 si->si_cookieState->cs_vals, NULL );
 518                                         changed = 1;
 519                                         break;
 520                                 }
 521                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 522                                         if ( si->si_syncCookie.sids[i] !=
 523                                                 si->si_cookieState->cs_sids[j] )
 524                                                 continue;
 525                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 526                                                 &si->si_cookieState->cs_vals[j] ))
 527                                                 break;
 528                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 529                                                 &si->si_cookieState->cs_vals[j] );
 530                                         changed = 1;
 531                                         break;
 532                                 }
 533                         }
 534                 }
 535         }
 536         if ( changed ) {
 537                 si->si_cookieAge = si->si_cookieState->cs_age;
 538                 ch_free( si->si_syncCookie.octet_str.bv_val );
 539                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 540                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 541                         si->si_syncCookie.sid );
 542         }
 543         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 544         return changed;
 545 }
 546
 547 static int
 548 do_syncrep1(
 549         Operation *op,
 550         syncinfo_t *si )
 551 {
 552         int     rc;
 553         int cmdline_cookie_found = 0;
 554
 555         struct sync_cookie      *sc = NULL;
 556 #ifdef HAVE_TLS
 557         void    *ssl;
 558 #endif
 559
 560         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 561         if ( rc != LDAP_SUCCESS ) {
 562                 goto done;
 563         }
 564         op->o_protocol = LDAP_VERSION3;
 565
 566         /* Set SSF to strongest of TLS, SASL SSFs */
 567         op->o_sasl_ssf = 0;
 568         op->o_tls_ssf = 0;
 569         op->o_transport_ssf = 0;
 570 #ifdef HAVE_TLS
 571         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 572                 == LDAP_SUCCESS && ssl != NULL )
 573         {
 574                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 575         }
 576 #endif /* HAVE_TLS */
 577         {
 578                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 579                                                   to use sasl_ssf_t but currently uses ber_len_t */
 580                 ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf );
 581                 op->o_sasl_ssf = ssf;
 582         }
 583         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 584                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 585
 586         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 587
 588         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 589         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 590
 591         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 592
 593         si->si_syncCookie.rid = si->si_rid;
 594
 595         /* whenever there are multiple data sources possible, advertise sid */
 596         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 597                 slap_serverID : -1;
 598
 599         /* We've just started up, or the remote server hasn't sent us
 600          * any meaningful state.
 601          */
 602         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 603                 int i;
 604
 605                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 606                         if ( si->si_rid == sc->rid ) {
 607                                 cmdline_cookie_found = 1;
 608                                 break;
 609                         }
 610                 }
 611
 612                 if ( cmdline_cookie_found ) {
 613                         /* cookie is supplied in the command line */
 614
 615                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 616
 617                         /* ctxcsn wasn't parsed yet, do it now */
 618                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 619                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 620                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 621                         slap_sync_cookie_free( sc, 1 );
 622                 } else {
 623                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 624                         if ( !si->si_cookieState->cs_num ) {
 625                                 /* get contextCSN shadow replica from database */
 626                                 BerVarray csn = NULL;
 627                                 void *ctx = op->o_tmpmemctx;
 628
 629                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 630                                 op->o_req_dn = op->o_req_ndn;
 631
 632                                 /* try to read stored contextCSN */
 633                                 op->o_tmpmemctx = NULL;
 634                                 backend_attribute( op, NULL, &op->o_req_ndn,
 635                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 636                                 op->o_tmpmemctx = ctx;
 637                                 if ( csn ) {
 638                                         si->si_cookieState->cs_vals = csn;
 639                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 640                                         si->si_cookieState->cs_num = i;
 641                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 642                                 }
 643                         }
 644                         if ( si->si_cookieState->cs_num ) {
 645                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 646                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 647                                         si->si_cookieState->cs_vals, NULL )) {
 648                                         rc = LDAP_NO_MEMORY;
 649                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 650                                         goto done;
 651                                 }
 652                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 653                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 654                                         sizeof(int) );
 655                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 656                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 657                         }
 658                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 659                 }
 660
 661                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 662                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 663                         si->si_syncCookie.sid );
 664         } else {
 665                 /* Look for contextCSN from syncprov overlay. */
 666                 check_syncprov( op, si );
 667         }
 668
 669         si->si_refreshDone = 0;
 670
 671         rc = ldap_sync_search( si, op->o_tmpmemctx );
 672
 673         if( rc != LDAP_SUCCESS ) {
 674                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 675                         "ldap_search_ext: %s (%d)\n",
 676                         si->si_ridtxt, ldap_err2string( rc ), rc );
 677         }
 678
 679 done:
 680         if ( rc ) {
 681                 if ( si->si_ld ) {
 682                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 683                         si->si_ld = NULL;
 684                 }
 685         }
 686
 687         return rc;
 688 }
 689
 690 static int
 691 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 692 {
 693         int i, j, match = 0;
 694         const char *text;
 695
 696         *which = 0;
 697
 698         if ( sc1->numcsns < sc2->numcsns ) {
 699                 *which = sc1->numcsns;
 700                 return -1;
 701         }
 702
 703         for (j=0; j<sc2->numcsns; j++) {
 704                 for (i=0; i<sc1->numcsns; i++) {
 705                         if ( sc1->sids[i] != sc2->sids[j] )
 706                                 continue;
 707                         value_match( &match, slap_schema.si_ad_entryCSN,
 708                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 709                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 710                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 711                         if ( match < 0 ) {
 712                                 *which = j;
 713                                 return match;
 714                         }
 715                         break;
 716                 }
 717                 if ( i == sc1->numcsns ) {
 718                         /* sc2 has a sid sc1 lacks */
 719                         *which = j;
 720                         return -1;
 721                 }
 722         }
 723         return match;
 724 }
 725
 726 #define SYNC_PAUSED     -3
 727
 728 static int
 729 do_syncrep2(
 730         Operation *op,
 731         syncinfo_t *si )
 732 {
 733         LDAPControl     **rctrls = NULL;
 734
 735         BerElementBuffer berbuf;
 736         BerElement      *ber = (BerElement *)&berbuf;
 737
 738         LDAPMessage     *msg = NULL;
 739
 740         char            *retoid = NULL;
 741         struct berval   *retdata = NULL;
 742
 743         Entry           *entry = NULL;
 744
 745         int             syncstate;
 746         struct berval   syncUUID = BER_BVNULL;
 747         struct sync_cookie      syncCookie = { NULL };
 748         struct sync_cookie      syncCookie_req = { NULL };
 749         struct berval           cookie = BER_BVNULL;
 750
 751         int             rc,
 752                         err = LDAP_SUCCESS;
 753         ber_len_t       len;
 754
 755         struct berval   *psub;
 756         Modifications   *modlist = NULL;
 757
 758         int                             match, m;
 759
 760         struct timeval *tout_p = NULL;
 761         struct timeval tout = { 0, 0 };
 762
 763         int             refreshDeletes = 0;
 764         BerVarray syncUUIDs = NULL;
 765         ber_tag_t si_tag;
 766
 767         if ( slapd_shutdown ) {
 768                 rc = -2;
 769                 goto done;
 770         }
 771
 772         ber_init2( ber, NULL, LBER_USE_DER );
 773         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 774
 775         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 776
 777         psub = &si->si_be->be_nsuffix[0];
 778
 779         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 780
 781         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 782                 tout_p = &tout;
 783         } else {
 784                 tout_p = NULL;
 785         }
 786
 787         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 788                 tout_p, &msg ) ) > 0 )
 789         {
 790                 LDAPControl     *rctrlp = NULL;
 791
 792                 if ( slapd_shutdown ) {
 793                         rc = -2;
 794                         goto done;
 795                 }
 796                 switch( ldap_msgtype( msg ) ) {
 797                 case LDAP_RES_SEARCH_ENTRY:
 798                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 799                         /* we can't work without the control */
 800                         if ( rctrls ) {
 801                                 LDAPControl **next;
 802                                 /* NOTE: make sure we use the right one;
 803                                  * a better approach would be to run thru
 804                                  * the whole list and take care of all */
 805                                 /* NOTE: since we issue the search request,
 806                                  * we should know what controls to expect,
 807                                  * and there should be none apart from the
 808                                  * sync-related control */
 809                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 810                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 811                                 {
 812                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 813                                                 "got search entry with multiple "
 814                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 815                                         ldap_controls_free( rctrls );
 816                                         rc = -1;
 817                                         goto done;
 818                                 }
 819                         }
 820                         if ( rctrlp == NULL ) {
 821                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 822                                         "got search entry without "
 823                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 824                                 rc = -1;
 825                                 goto done;
 826                         }
 827                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 828                         ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 829                         /* FIXME: what if syncUUID is NULL or empty?
 830                          * (happens with back-sql...) */
 831                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 832                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 833                                         "got empty syncUUID with LDAP_SYNC_%s\n",
 834                                         si->si_ridtxt,
 835                                         syncrepl_state2str( syncstate ), 0 );
 836                                 ldap_controls_free( rctrls );
 837                                 rc = -1;
 838                                 goto done;
 839                         }
 840                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 841                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 842
 843                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 844                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 845
 846                                 if ( !BER_BVISNULL( &cookie ) ) {
 847                                         ch_free( syncCookie.octet_str.bv_val );
 848                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 849                                 }
 850                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 851                                 {
 852                                         slap_parse_sync_cookie( &syncCookie, NULL );
 853                                         if ( syncCookie.ctxcsn ) {
 854                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 855                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 856                                                         if ( si->si_cookieState->cs_sids[i] == sid &&
 857                                                                 ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 858                                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s\n",
 859                                                                         si->si_ridtxt, syncCookie.ctxcsn->bv_val, 0 );
 860                                                                 ldap_controls_free( rctrls );
 861                                                                 rc = 0;
 862                                                                 goto done;
 863                                                         }
 864                                                 }
 865                                         }
 866                                 }
 867                         }
 868                         rc = 0;
 869                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 870                                 modlist = NULL;
 871                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 872                                         syncCookie.ctxcsn )
 873                                 {
 874                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 875                                 } else switch ( rc ) {
 876                                         case LDAP_ALREADY_EXISTS:
 877                                         case LDAP_NO_SUCH_OBJECT:
 878                                         case LDAP_NO_SUCH_ATTRIBUTE:
 879                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 880                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 881                                                 si->si_logstate = SYNCLOG_FALLBACK;
 882                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 883                                                 break;
 884                                         default:
 885                                                 break;
 886                                 }
 887                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 888                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 889                         {
 890                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 891                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
 892                                         syncCookie.ctxcsn )
 893                                 {
 894                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 895                                 }
 896                         }
 897                         ldap_controls_free( rctrls );
 898                         if ( modlist ) {
 899                                 slap_mods_free( modlist, 1 );
 900                         }
 901                         if ( rc )
 902                                 goto done;
 903                         break;
 904
 905                 case LDAP_RES_SEARCH_REFERENCE:
 906                         Debug( LDAP_DEBUG_ANY,
 907                                 "do_syncrep2: %s reference received error\n",
 908                                 si->si_ridtxt, 0, 0 );
 909                         break;
 910
 911                 case LDAP_RES_SEARCH_RESULT:
 912                         Debug( LDAP_DEBUG_SYNC,
 913                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 914                                 si->si_ridtxt, 0, 0 );
 915                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 916                                 &rctrls, 0 );
 917 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 918                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 919                                 /* map old result code to registered code */
 920                                 err = LDAP_SYNC_REFRESH_REQUIRED;
 921                         }
 922 #endif
 923                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 924                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
 925                                         si->si_logstate = SYNCLOG_FALLBACK;
 926                                 }
 927                                 rc = err;
 928                                 goto done;
 929                         }
 930                         if ( err ) {
 931                                 Debug( LDAP_DEBUG_ANY,
 932                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
 933                                         si->si_ridtxt, err, ldap_err2string( err ) );
 934                         }
 935                         if ( rctrls ) {
 936                                 LDAPControl **next;
 937                                 /* NOTE: make sure we use the right one;
 938                                  * a better approach would be to run thru
 939                                  * the whole list and take care of all */
 940                                 /* NOTE: since we issue the search request,
 941                                  * we should know what controls to expect,
 942                                  * and there should be none apart from the
 943                                  * sync-related control */
 944                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
 945                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
 946                                 {
 947                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 948                                                 "got search result with multiple "
 949                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 950                                         ldap_controls_free( rctrls );
 951                                         rc = -1;
 952                                         goto done;
 953                                 }
 954                         }
 955                         if ( rctrlp ) {
 956                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 957
 958                                 ber_scanf( ber, "{" /*"}"*/);
 959                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 960                                         ber_scanf( ber, "m", &cookie );
 961
 962                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
 963                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
 964
 965                                         if ( !BER_BVISNULL( &cookie ) ) {
 966                                                 ch_free( syncCookie.octet_str.bv_val );
 967                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
 968                                         }
 969                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 970                                         {
 971                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 972                                         }
 973                                 }
 974                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 975                                 {
 976                                         ber_scanf( ber, "b", &refreshDeletes );
 977                                 }
 978                                 ber_scanf( ber, /*"{"*/ "}" );
 979                         }
 980                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
 981                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 982                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 983                         }
 984                         if ( !syncCookie.ctxcsn ) {
 985                                 match = 1;
 986                         } else if ( !syncCookie_req.ctxcsn ) {
 987                                 match = -1;
 988                                 m = 0;
 989                         } else {
 990                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
 991                         }
 992                         if ( rctrls ) {
 993                                 ldap_controls_free( rctrls );
 994                         }
 995                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 996                                 /* FIXME : different error behaviors according to
 997                                  *      1) err code : LDAP_BUSY ...
 998                                  *      2) on err policy : stop service, stop sync, retry
 999                                  */
1000                                 if ( refreshDeletes == 0 && match < 0 &&
1001                                         err == LDAP_SUCCESS &&
1002                                         syncCookie_req.numcsns == syncCookie.numcsns )
1003                                 {
1004                                         syncrepl_del_nonpresent( op, si, NULL,
1005                                                 &syncCookie, m );
1006                                 } else {
1007                                         avl_free( si->si_presentlist, ch_free );
1008                                         si->si_presentlist = NULL;
1009                                 }
1010                         }
1011                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1012                         {
1013                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
1014                         }
1015                         if ( err == LDAP_SUCCESS
1016                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1017                                 si->si_logstate = SYNCLOG_LOGGING;
1018                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1019                         } else {
1020                                 rc = -2;
1021                         }
1022                         goto done;
1023                         break;
1024
1025                 case LDAP_RES_INTERMEDIATE:
1026                         rc = ldap_parse_intermediate( si->si_ld, msg,
1027                                 &retoid, &retdata, NULL, 0 );
1028                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1029                                 ber_init2( ber, retdata, LBER_USE_DER );
1030
1031                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1032                                 ber_tag_t tag;
1033                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1034                                         Debug( LDAP_DEBUG_SYNC,
1035                                                 "do_syncrep2: %s %s - %s\n",
1036                                                 si->si_ridtxt,
1037                                                 "LDAP_RES_INTERMEDIATE",
1038                                                 "NEW_COOKIE" );
1039                                         ber_scanf( ber, "tm", &tag, &cookie );
1040                                         break;
1041                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1042                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1043                                         Debug( LDAP_DEBUG_SYNC,
1044                                                 "do_syncrep2: %s %s - %s\n",
1045                                                 si->si_ridtxt,
1046                                                 "LDAP_RES_INTERMEDIATE",
1047                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1048                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1049                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1050                                                 si->si_refreshDelete = 1;
1051                                         } else {
1052                                                 si->si_refreshPresent = 1;
1053                                         }
1054                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1055                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1056                                         {
1057                                                 ber_scanf( ber, "m", &cookie );
1058
1059                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1060                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1061
1062                                                 if ( !BER_BVISNULL( &cookie ) ) {
1063                                                         ch_free( syncCookie.octet_str.bv_val );
1064                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1065                                                 }
1066                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1067                                                 {
1068                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1069                                                 }
1070                                         }
1071                                         /* Defaults to TRUE */
1072                                         if ( ber_peek_tag( ber, &len ) ==
1073                                                 LDAP_TAG_REFRESHDONE )
1074                                         {
1075                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1076                                         } else
1077                                         {
1078                                                 si->si_refreshDone = 1;
1079                                         }
1080                                         ber_scanf( ber, /*"{"*/ "}" );
1081                                         break;
1082                                 case LDAP_TAG_SYNC_ID_SET:
1083                                         Debug( LDAP_DEBUG_SYNC,
1084                                                 "do_syncrep2: %s %s - %s\n",
1085                                                 si->si_ridtxt,
1086                                                 "LDAP_RES_INTERMEDIATE",
1087                                                 "SYNC_ID_SET" );
1088                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1089                                         if ( ber_peek_tag( ber, &len ) ==
1090                                                 LDAP_TAG_SYNC_COOKIE )
1091                                         {
1092                                                 ber_scanf( ber, "m", &cookie );
1093
1094                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: cookie=%s\n",
1095                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0, 0 );
1096
1097                                                 if ( !BER_BVISNULL( &cookie ) ) {
1098                                                         ch_free( syncCookie.octet_str.bv_val );
1099                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1100                                                 }
1101                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1102                                                 {
1103                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1104                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1105                                                 }
1106                                         }
1107                                         if ( ber_peek_tag( ber, &len ) ==
1108                                                 LDAP_TAG_REFRESHDELETES )
1109                                         {
1110                                                 ber_scanf( ber, "b", &refreshDeletes );
1111                                         }
1112                                         ber_scanf( ber, "[W]", &syncUUIDs );
1113                                         ber_scanf( ber, /*"{"*/ "}" );
1114                                         if ( refreshDeletes ) {
1115                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1116                                                         &syncCookie, m );
1117                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1118                                         } else {
1119                                                 int i;
1120                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1121                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1122                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1123                                                 }
1124                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1125                                         }
1126                                         slap_sync_cookie_free( &syncCookie, 0 );
1127                                         break;
1128                                 default:
1129                                         Debug( LDAP_DEBUG_ANY,
1130                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1131                                                 si->si_ridtxt, (long) si_tag, 0 );
1132                                         ldap_memfree( retoid );
1133                                         ber_bvfree( retdata );
1134                                         continue;
1135                                 }
1136
1137                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1138                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1139                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1140                                 }
1141                                 if ( !syncCookie.ctxcsn ) {
1142                                         match = 1;
1143                                 } else if ( !syncCookie_req.ctxcsn ) {
1144                                         match = -1;
1145                                         m = 0;
1146                                 } else {
1147                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1148                                 }
1149
1150                                 if ( match < 0 ) {
1151                                         if ( si->si_refreshPresent == 1 &&
1152                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1153                                                 syncrepl_del_nonpresent( op, si, NULL,
1154                                                         &syncCookie, m );
1155                                         }
1156
1157                                         if ( syncCookie.ctxcsn )
1158                                         {
1159                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1160                                         }
1161                                 }
1162
1163                                 ldap_memfree( retoid );
1164                                 ber_bvfree( retdata );
1165                                 break;
1166
1167                         } else {
1168                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1169                                         "unknown intermediate response (%d)\n",
1170                                         si->si_ridtxt, rc, 0 );
1171                                 ldap_memfree( retoid );
1172                                 ber_bvfree( retdata );
1173                                 break;
1174                         }
1175                         break;
1176
1177                 default:
1178                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1179                                 "unknown message (0x%02lx)\n",
1180                                 si->si_ridtxt,
1181                                 (unsigned long)ldap_msgtype( msg ), 0 );
1182                         break;
1183
1184                 }
1185                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1186                         slap_sync_cookie_free( &syncCookie_req, 0 );
1187                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1188                         slap_sync_cookie_free( &syncCookie, 0 );
1189                 }
1190                 ldap_msgfree( msg );
1191                 msg = NULL;
1192                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1193                         slap_sync_cookie_free( &syncCookie, 0 );
1194                         slap_sync_cookie_free( &syncCookie_req, 0 );
1195                         return SYNC_PAUSED;
1196                 }
1197         }
1198
1199         if ( rc == -1 ) {
1200                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1201                 err = rc;
1202         }
1203
1204 done:
1205         if ( err != LDAP_SUCCESS ) {
1206                 Debug( LDAP_DEBUG_ANY,
1207                         "do_syncrep2: %s (%d) %s\n",
1208                         si->si_ridtxt, err, ldap_err2string( err ) );
1209         }
1210
1211         slap_sync_cookie_free( &syncCookie, 0 );
1212         slap_sync_cookie_free( &syncCookie_req, 0 );
1213
1214         if ( msg ) ldap_msgfree( msg );
1215
1216         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1217                 if ( si->si_conn ) {
1218                         connection_client_stop( si->si_conn );
1219                         si->si_conn = NULL;
1220                 }
1221                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1222                 si->si_ld = NULL;
1223         }
1224
1225         return rc;
1226 }
1227
1228 static void *
1229 do_syncrepl(
1230         void    *ctx,
1231         void    *arg )
1232 {
1233         struct re_s* rtask = arg;
1234         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1235         Connection conn = {0};
1236         OperationBuffer opbuf;
1237         Operation *op;
1238         int rc = LDAP_SUCCESS;
1239         int dostop = 0;
1240         ber_socket_t s;
1241         int i, defer = 1, fail = 0;
1242         Backend *be;
1243
1244         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1245
1246         if ( si == NULL )
1247                 return NULL;
1248
1249         /* There will never be more than one instance active */
1250         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1251
1252         switch( abs( si->si_type ) ) {
1253         case LDAP_SYNC_REFRESH_ONLY:
1254         case LDAP_SYNC_REFRESH_AND_PERSIST:
1255                 break;
1256         default:
1257                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1258                 return NULL;
1259         }
1260
1261         if ( slapd_shutdown ) {
1262                 if ( si->si_ld ) {
1263                         if ( si->si_conn ) {
1264                                 connection_client_stop( si->si_conn );
1265                                 si->si_conn = NULL;
1266                         }
1267                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1268                         si->si_ld = NULL;
1269                 }
1270                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1271                 return NULL;
1272         }
1273
1274         connection_fake_init( &conn, &opbuf, ctx );
1275         op = &opbuf.ob_op;
1276
1277         /* use global malloc for now */
1278         op->o_tmpmemctx = NULL;
1279         op->o_tmpmfuncs = &ch_mfuncs;
1280
1281         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1282         be = si->si_be;
1283
1284         /* Coordinate contextCSN updates with any syncprov overlays
1285          * in use. This may be complicated by the use of the glue
1286          * overlay.
1287          *
1288          * Typically there is a single syncprov mastering the entire
1289          * glued tree. In that case, our contextCSN updates should
1290          * go to the master DB. But if there is no syncprov on the
1291          * master DB, then nothing special is needed here.
1292          *
1293          * Alternatively, there may be individual syncprov overlays
1294          * on each glued branch. In that case, each syncprov only
1295          * knows about changes within its own branch. And so our
1296          * contextCSN updates should only go to the local DB.
1297          */
1298         if ( !si->si_wbe ) {
1299                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1300                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1301                         if ( overlay_is_inst( top_be, "syncprov" ))
1302                                 si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1303                         else
1304                                 si->si_wbe = be;
1305                 } else {
1306                         si->si_wbe = be;
1307                 }
1308         }
1309         if ( !si->si_schemachecking )
1310                 op->o_no_schema_check = 1;
1311
1312         /* Establish session, do search */
1313         if ( !si->si_ld ) {
1314                 si->si_refreshDelete = 0;
1315                 si->si_refreshPresent = 0;
1316
1317                 /* use main DB when retrieving contextCSN */
1318                 op->o_bd = si->si_wbe;
1319                 op->o_dn = op->o_bd->be_rootdn;
1320                 op->o_ndn = op->o_bd->be_rootndn;
1321                 rc = do_syncrep1( op, si );
1322         }
1323
1324 reload:
1325         /* Process results */
1326         if ( rc == LDAP_SUCCESS ) {
1327                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1328
1329                 /* use current DB */
1330                 op->o_bd = be;
1331                 op->o_dn = op->o_bd->be_rootdn;
1332                 op->o_ndn = op->o_bd->be_rootndn;
1333                 rc = do_syncrep2( op, si );
1334                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1335                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1336                         goto reload;
1337                 }
1338
1339                 /* We got deleted while running on cn=config */
1340                 if ( !si->si_ctype ) {
1341                         if ( si->si_conn )
1342                                 dostop = 1;
1343                         rc = -1;
1344                 }
1345
1346                 if ( rc != SYNC_PAUSED ) {
1347                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1348                                 /* If we succeeded, enable the connection for further listening.
1349                                  * If we failed, tear down the connection and reschedule.
1350                                  */
1351                                 if ( rc == LDAP_SUCCESS ) {
1352                                         if ( si->si_conn ) {
1353                                                 connection_client_enable( si->si_conn );
1354                                         } else {
1355                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1356                                         }
1357                                 } else if ( si->si_conn ) {
1358                                         dostop = 1;
1359                                 }
1360                         } else {
1361                                 if ( rc == -2 ) rc = 0;
1362                         }
1363                 }
1364         }
1365
1366         /* At this point, we have 5 cases:
1367          * 1) for any hard failure, give up and remove this task
1368          * 2) for ServerDown, reschedule this task to run later
1369          * 3) for threadpool pause, reschedule to run immediately
1370          * 4) for Refresh and Success, reschedule to run
1371          * 5) for Persist and Success, reschedule to defer
1372          */
1373         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1374
1375         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1376                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1377         }
1378
1379         if ( dostop ) {
1380                 connection_client_stop( si->si_conn );
1381                 si->si_conn = NULL;
1382         }
1383
1384         if ( rc == SYNC_PAUSED ) {
1385                 rtask->interval.tv_sec = 0;
1386                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1387                 rtask->interval.tv_sec = si->si_interval;
1388                 rc = 0;
1389         } else if ( rc == LDAP_SUCCESS ) {
1390                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1391                         defer = 0;
1392                 }
1393                 rtask->interval.tv_sec = si->si_interval;
1394                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1395                 if ( si->si_retrynum ) {
1396                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1397                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1398                         }
1399                         si->si_retrynum[i] = RETRYNUM_TAIL;
1400                 }
1401         } else {
1402                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1403                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1404                                 break;
1405                 }
1406
1407                 if ( !si->si_ctype
1408                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1409                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1410                         fail = RETRYNUM_TAIL;
1411                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1412                         if ( si->si_retrynum[i] > 0 )
1413                                 si->si_retrynum[i]--;
1414                         fail = si->si_retrynum[i];
1415                         rtask->interval.tv_sec = si->si_retryinterval[i];
1416                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1417                         slap_wake_listener();
1418                 }
1419         }
1420
1421         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1422         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1423
1424         if ( rc ) {
1425                 if ( fail == RETRYNUM_TAIL ) {
1426                         Debug( LDAP_DEBUG_ANY,
1427                                 "do_syncrepl: %s quitting\n",
1428                                 si->si_ridtxt, 0, 0 );
1429                 } else if ( fail > 0 ) {
1430                         Debug( LDAP_DEBUG_ANY,
1431                                 "do_syncrepl: %s retrying (%d retries left)\n",
1432                                 si->si_ridtxt, fail, 0 );
1433                 } else {
1434                         Debug( LDAP_DEBUG_ANY,
1435                                 "do_syncrepl: %s retrying\n",
1436                                 si->si_ridtxt, 0, 0 );
1437                 }
1438         }
1439
1440         /* Do final delete cleanup */
1441         if ( !si->si_ctype ) {
1442                 cookie_state *cs = NULL;
1443                 syncinfo_t **sip;
1444
1445                 cs = be->be_syncinfo->si_cookieState;
1446                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1447                 *sip = si->si_next;
1448                 syncinfo_free( si, 0 );
1449                 if ( !be->be_syncinfo ) {
1450                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1451                         if ( cs ) {
1452                                 ch_free( cs->cs_sids );
1453                                 ber_bvarray_free( cs->cs_vals );
1454                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1455                                 ch_free( cs );
1456                         }
1457                 }
1458         }
1459         return NULL;
1460 }
1461
1462 static slap_verbmasks modops[] = {
1463         { BER_BVC("add"), LDAP_REQ_ADD },
1464         { BER_BVC("delete"), LDAP_REQ_DELETE },
1465         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1466         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1467         { BER_BVNULL, 0 }
1468 };
1469
1470 static Modifications *
1471 syncrepl_accesslog_mods(
1472         syncinfo_t *si,
1473         struct berval *vals
1474 )
1475 {
1476         char *colon;
1477         const char *text;
1478         AttributeDescription *ad;
1479         struct berval bv, bv2;
1480         short op;
1481         Modifications *mod = NULL, *modlist = NULL, **modtail;
1482         int i;
1483
1484         modtail = &modlist;
1485
1486         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1487                 ad = NULL;
1488                 bv = vals[i];
1489
1490                 colon = ber_bvchr( &bv, ':' );
1491                 if ( !colon ) {
1492                         /* Invalid */
1493                         continue;
1494                 }
1495
1496                 bv.bv_len = colon - bv.bv_val;
1497                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1498                         /* Invalid */
1499                         continue;
1500                 }
1501
1502                 /* Ignore dynamically generated attrs */
1503                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1504                         continue;
1505                 }
1506
1507                 /* Ignore excluded attrs */
1508                 if ( ldap_charray_inlist( si->si_exattrs,
1509                         ad->ad_type->sat_cname.bv_val ) )
1510                 {
1511                         continue;
1512                 }
1513
1514                 switch(colon[1]) {
1515                 case '+':       op = LDAP_MOD_ADD; break;
1516                 case '-':       op = LDAP_MOD_DELETE; break;
1517                 case '=':       op = LDAP_MOD_REPLACE; break;
1518                 case '#':       op = LDAP_MOD_INCREMENT; break;
1519                 default:        continue;
1520                 }
1521
1522                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1523                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1524                         mod->sml_flags = 0;
1525                         mod->sml_op = op;
1526                         mod->sml_next = NULL;
1527                         mod->sml_desc = ad;
1528                         mod->sml_type = ad->ad_cname;
1529                         mod->sml_values = NULL;
1530                         mod->sml_nvalues = NULL;
1531                         mod->sml_numvals = 0;
1532
1533                         *modtail = mod;
1534                         modtail = &mod->sml_next;
1535                 }
1536                 if ( colon[2] == ' ' ) {
1537                         bv.bv_val = colon + 3;
1538                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1539                         ber_dupbv( &bv2, &bv );
1540                         ber_bvarray_add( &mod->sml_values, &bv2 );
1541                         mod->sml_numvals++;
1542                 }
1543         }
1544         return modlist;
1545 }
1546
1547 static Modifications *
1548 syncrepl_changelog_mods(
1549         syncinfo_t *si,
1550         struct berval *vals
1551 )
1552 {
1553         return NULL;    /* FIXME */
1554 }
1555
1556 static int
1557 syncrepl_message_to_op(
1558         syncinfo_t      *si,
1559         Operation       *op,
1560         LDAPMessage     *msg
1561 )
1562 {
1563         BerElement      *ber = NULL;
1564         Modifications   *modlist = NULL;
1565         logschema *ls;
1566         SlapReply rs = { REP_RESULT };
1567         slap_callback cb = { NULL, null_callback, NULL, NULL };
1568
1569         const char      *text;
1570         char txtbuf[SLAP_TEXT_BUFLEN];
1571         size_t textlen = sizeof txtbuf;
1572
1573         struct berval   bdn, dn = BER_BVNULL, ndn;
1574         struct berval   bv, *bvals = NULL;
1575         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1576                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1577                 psup = BER_BVNULL, nsup = BER_BVNULL;
1578         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1579
1580         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1581                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1582                         "Message type should be entry (%d)",
1583                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1584                 return -1;
1585         }
1586
1587         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1588                 ls = &accesslog_sc;
1589         else
1590                 ls = &changelog_sc;
1591
1592         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1593
1594         if ( rc != LDAP_SUCCESS ) {
1595                 Debug( LDAP_DEBUG_ANY,
1596                         "syncrepl_message_to_op: %s dn get failed (%d)",
1597                         si->si_ridtxt, rc, 0 );
1598                 return rc;
1599         }
1600
1601         op->o_tag = LBER_DEFAULT;
1602         op->o_bd = si->si_wbe;
1603
1604         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1605                 == LDAP_SUCCESS ) {
1606                 if ( bv.bv_val == NULL )
1607                         break;
1608
1609                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1610                         bdn = bvals[0];
1611                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1612                         ber_dupbv( &op->o_req_dn, &dn );
1613                         ber_dupbv( &op->o_req_ndn, &ndn );
1614                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1615                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1616                         freeReqDn = 1;
1617                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1618                         int i = verb_to_mask( bvals[0].bv_val, modops );
1619                         if ( i < 0 ) {
1620                                 Debug( LDAP_DEBUG_ANY,
1621                                         "syncrepl_message_to_op: %s unknown op %s",
1622                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1623                                 ch_free( bvals );
1624                                 rc = -1;
1625                                 goto done;
1626                         }
1627                         op->o_tag = modops[i].mask;
1628                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1629                         /* Parse attribute into modlist */
1630                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1631                                 modlist = syncrepl_accesslog_mods( si, bvals );
1632                         } else {
1633                                 modlist = syncrepl_changelog_mods( si, bvals );
1634                         }
1635                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1636                         rdn = bvals[0];
1637                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1638                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1639                                 deleteOldRdn = 1;
1640                         }
1641                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1642                         sup = bvals[0];
1643                 } else if ( !ber_bvstrcasecmp( &bv,
1644                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1645                 {
1646                         slap_queue_csn( op, bvals );
1647                 }
1648                 ch_free( bvals );
1649         }
1650
1651         /* If we didn't get a mod type or a target DN, bail out */
1652         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1653                 rc = -1;
1654                 goto done;
1655         }
1656
1657         op->o_callback = &cb;
1658         slap_op_time( &op->o_time, &op->o_tincr );
1659
1660         switch( op->o_tag ) {
1661         case LDAP_REQ_ADD:
1662         case LDAP_REQ_MODIFY:
1663                 /* If we didn't get required data, bail */
1664                 if ( !modlist ) goto done;
1665
1666                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1667
1668                 if ( rc != LDAP_SUCCESS ) {
1669                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1670                                 "mods check (%s)\n",
1671                                 si->si_ridtxt, text, 0 );
1672                         goto done;
1673                 }
1674
1675                 if ( op->o_tag == LDAP_REQ_ADD ) {
1676                         Entry *e = entry_alloc();
1677                         op->ora_e = e;
1678                         op->ora_e->e_name = op->o_req_dn;
1679                         op->ora_e->e_nname = op->o_req_ndn;
1680                         freeReqDn = 0;
1681                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1682                         if( rc != LDAP_SUCCESS ) {
1683                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1684                                 "mods2entry (%s)\n",
1685                                         si->si_ridtxt, text, 0 );
1686                         } else {
1687                                 rc = op->o_bd->be_add( op, &rs );
1688                                 Debug( LDAP_DEBUG_SYNC,
1689                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1690                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1691                         }
1692                         if ( e == op->ora_e )
1693                                 be_entry_release_w( op, op->ora_e );
1694                 } else {
1695                         op->orm_modlist = modlist;
1696                         op->o_bd = si->si_wbe;
1697                         rc = op->o_bd->be_modify( op, &rs );
1698                         modlist = op->orm_modlist;
1699                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1700                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1701                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1702                         op->o_bd = si->si_be;
1703                 }
1704                 break;
1705         case LDAP_REQ_MODRDN:
1706                 if ( BER_BVISNULL( &rdn ) ) goto done;
1707
1708                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1709                         goto done;
1710                 }
1711                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1712                         goto done;
1713                 }
1714                 if ( !BER_BVISNULL( &sup ) ) {
1715                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1716                                 goto done;
1717                         }
1718                         op->orr_newSup = &psup;
1719                         op->orr_nnewSup = &nsup;
1720                 } else {
1721                         op->orr_newSup = NULL;
1722                         op->orr_nnewSup = NULL;
1723                 }
1724                 op->orr_newrdn = prdn;
1725                 op->orr_nnewrdn = nrdn;
1726                 op->orr_deleteoldrdn = deleteOldRdn;
1727                 op->orr_modlist = NULL;
1728                 if ( slap_modrdn2mods( op, &rs ) ) {
1729                         goto done;
1730                 }
1731
1732                 /* Append modlist for operational attrs */
1733                 {
1734                         Modifications *m;
1735
1736                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1737                                 ;
1738                         m->sml_next = modlist;
1739                         modlist = NULL;
1740                 }
1741                 rc = op->o_bd->be_modrdn( op, &rs );
1742                 slap_mods_free( op->orr_modlist, 1 );
1743                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1744                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1745                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1746                 break;
1747         case LDAP_REQ_DELETE:
1748                 rc = op->o_bd->be_delete( op, &rs );
1749                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1750                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1751                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1752                 break;
1753         }
1754 done:
1755         slap_graduate_commit_csn( op );
1756         op->o_bd = si->si_be;
1757         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1758         BER_BVZERO( &op->o_csn );
1759         if ( modlist ) {
1760                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1761         }
1762         if ( !BER_BVISNULL( &rdn ) ) {
1763                 if ( !BER_BVISNULL( &nsup ) ) {
1764                         ch_free( nsup.bv_val );
1765                 }
1766                 if ( !BER_BVISNULL( &psup ) ) {
1767                         ch_free( psup.bv_val );
1768                 }
1769                 if ( !BER_BVISNULL( &nrdn ) ) {
1770                         ch_free( nrdn.bv_val );
1771                 }
1772                 if ( !BER_BVISNULL( &prdn ) ) {
1773                         ch_free( prdn.bv_val );
1774                 }
1775         }
1776         if ( freeReqDn ) {
1777                 ch_free( op->o_req_ndn.bv_val );
1778                 ch_free( op->o_req_dn.bv_val );
1779         }
1780         ber_free( ber, 0 );
1781         return rc;
1782 }
1783
1784 static int
1785 syncrepl_message_to_entry(
1786         syncinfo_t      *si,
1787         Operation       *op,
1788         LDAPMessage     *msg,
1789         Modifications   **modlist,
1790         Entry                   **entry,
1791         int             syncstate
1792 )
1793 {
1794         Entry           *e = NULL;
1795         BerElement      *ber = NULL;
1796         Modifications   tmp;
1797         Modifications   *mod;
1798         Modifications   **modtail = modlist;
1799
1800         const char      *text;
1801         char txtbuf[SLAP_TEXT_BUFLEN];
1802         size_t textlen = sizeof txtbuf;
1803
1804         struct berval   bdn = BER_BVNULL, dn, ndn;
1805         int             rc, is_ctx;
1806
1807         *modlist = NULL;
1808
1809         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1810                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1811                         "Message type should be entry (%d)",
1812                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1813                 return -1;
1814         }
1815
1816         op->o_tag = LDAP_REQ_ADD;
1817
1818         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1819         if ( rc != LDAP_SUCCESS ) {
1820                 Debug( LDAP_DEBUG_ANY,
1821                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1822                         si->si_ridtxt, rc, 0 );
1823                 return rc;
1824         }
1825
1826         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1827                 /* NOTE: this could be done even before decoding the DN,
1828                  * although encoding errors wouldn't be detected */
1829                 rc = LDAP_SUCCESS;
1830                 goto done;
1831         }
1832
1833         if ( entry == NULL ) {
1834                 return -1;
1835         }
1836
1837         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1838         ber_dupbv( &op->o_req_dn, &dn );
1839         ber_dupbv( &op->o_req_ndn, &ndn );
1840         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1841         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1842
1843         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1844
1845         e = entry_alloc();
1846         e->e_name = op->o_req_dn;
1847         e->e_nname = op->o_req_ndn;
1848
1849         while ( ber_remaining( ber ) ) {
1850                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1851                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1852                 {
1853                         break;
1854                 }
1855
1856                 /* Drop all updates to the contextCSN of the context entry
1857                  * (ITS#4622, etc.)
1858                  */
1859                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1860                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1861                         ber_bvarray_free( tmp.sml_values );
1862                         continue;
1863                 }
1864
1865                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1866
1867                 mod->sml_op = LDAP_MOD_REPLACE;
1868                 mod->sml_flags = 0;
1869                 mod->sml_next = NULL;
1870                 mod->sml_desc = NULL;
1871                 mod->sml_type = tmp.sml_type;
1872                 mod->sml_values = tmp.sml_values;
1873                 mod->sml_nvalues = NULL;
1874                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
1875
1876                 *modtail = mod;
1877                 modtail = &mod->sml_next;
1878         }
1879
1880         if ( *modlist == NULL ) {
1881                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1882                         si->si_ridtxt, 0, 0 );
1883                 rc = -1;
1884                 goto done;
1885         }
1886
1887         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1888
1889         if ( rc != LDAP_SUCCESS ) {
1890                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1891                         si->si_ridtxt, text, 0 );
1892                 goto done;
1893         }
1894
1895         /* Strip out dynamically generated attrs */
1896         for ( modtail = modlist; *modtail ; ) {
1897                 mod = *modtail;
1898                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1899                         *modtail = mod->sml_next;
1900                         slap_mod_free( &mod->sml_mod, 0 );
1901                         ch_free( mod );
1902                 } else {
1903                         modtail = &mod->sml_next;
1904                 }
1905         }
1906
1907         /* Strip out attrs in exattrs list */
1908         for ( modtail = modlist; *modtail ; ) {
1909                 mod = *modtail;
1910                 if ( ldap_charray_inlist( si->si_exattrs,
1911                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1912                 {
1913                         *modtail = mod->sml_next;
1914                         slap_mod_free( &mod->sml_mod, 0 );
1915                         ch_free( mod );
1916                 } else {
1917                         modtail = &mod->sml_next;
1918                 }
1919         }
1920
1921         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1922         if( rc != LDAP_SUCCESS ) {
1923                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1924                         si->si_ridtxt, text, 0 );
1925         }
1926
1927 done:
1928         ber_free( ber, 0 );
1929         if ( rc != LDAP_SUCCESS ) {
1930                 if ( e ) {
1931                         entry_free( e );
1932                         e = NULL;
1933                 }
1934         }
1935         if ( entry )
1936                 *entry = e;
1937
1938         return rc;
1939 }
1940
1941 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1942
1943 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1944  * entry if a previous refresh was interrupted before sending us a new
1945  * context state. We try to compare the new entry to the existing entry
1946  * and ignore the new entry if they are the same.
1947  *
1948  * Also, we may get an update where the entryDN has changed, due to
1949  * a ModDn on the provider. We detect this as well, so we can issue
1950  * the corresponding operation locally.
1951  *
1952  * In the case of a modify, we get a list of all the attributes
1953  * in the original entry. Rather than deleting the entry and re-adding it,
1954  * we issue a Modify request that deletes all the attributes and adds all
1955  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1956  * entry.
1957  *
1958  * We otherwise distinguish ModDN from Modify; in the case of
1959  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1960  * operational attributes from the entry, and do a regular ModDN.
1961  */
1962 typedef struct dninfo {
1963         Entry *new_entry;
1964         struct berval dn;
1965         struct berval ndn;
1966         struct berval nnewSup;
1967         int renamed;    /* Was an existing entry renamed? */
1968         int delOldRDN;  /* Was old RDN deleted? */
1969         Modifications **modlist;        /* the modlist we received */
1970         Modifications *mods;    /* the modlist we compared */
1971         Attribute *oldNattr;    /* old naming attr */
1972         AttributeDescription *oldDesc;  /* for renames */
1973         AttributeDescription *newDesc;  /* for renames */
1974 } dninfo;
1975
1976 /* return 1 if inserted, 0 otherwise */
1977 static int
1978 avl_presentlist_insert(
1979         syncinfo_t* si,
1980         struct berval *syncUUID )
1981 {
1982         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
1983
1984         syncuuid_bv->bv_len = syncUUID->bv_len;
1985         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
1986         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
1987         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
1988
1989         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1990                 syncuuid_cmp, avl_dup_error ) )
1991         {
1992                 ch_free( syncuuid_bv );
1993                 return 0;
1994         }
1995
1996         return 1;
1997 }
1998
1999 static int
2000 syncrepl_entry(
2001         syncinfo_t* si,
2002         Operation *op,
2003         Entry* entry,
2004         Modifications** modlist,
2005         int syncstate,
2006         struct berval* syncUUID,
2007         struct berval* syncCSN )
2008 {
2009         Backend *be = op->o_bd;
2010         slap_callback   cb = { NULL, NULL, NULL, NULL };
2011         int syncuuid_inserted = 0;
2012         struct berval   syncUUID_strrep = BER_BVNULL;
2013
2014         SlapReply       rs_search = {REP_RESULT};
2015         SlapReply       rs_delete = {REP_RESULT};
2016         SlapReply       rs_add = {REP_RESULT};
2017         SlapReply       rs_modify = {REP_RESULT};
2018         Filter f = {0};
2019         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2020         int rc = LDAP_SUCCESS;
2021
2022         struct berval pdn = BER_BVNULL;
2023         dninfo dni = {0};
2024         int     retry = 1;
2025         int     freecsn = 1;
2026
2027         Debug( LDAP_DEBUG_SYNC,
2028                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2029                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2030
2031         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2032                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2033                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2034                 }
2035         }
2036
2037         if ( syncstate == LDAP_SYNC_PRESENT ) {
2038                 return 0;
2039         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2040                 if ( entry == NULL ) {
2041                         return 0;
2042                 }
2043         }
2044
2045         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2046         if ( syncstate != LDAP_SYNC_DELETE ) {
2047                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2048
2049                 if ( a == NULL ) {
2050                         /* add if missing */
2051                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2052                                 &syncUUID_strrep, syncUUID );
2053
2054                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2055                         /* replace only if necessary */
2056                         if ( a->a_nvals != a->a_vals ) {
2057                                 ber_memfree( a->a_nvals[0].bv_val );
2058                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2059                         }
2060                         ber_memfree( a->a_vals[0].bv_val );
2061                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2062                 }
2063         }
2064
2065         f.f_choice = LDAP_FILTER_EQUALITY;
2066         f.f_ava = &ava;
2067         ava.aa_desc = slap_schema.si_ad_entryUUID;
2068         ava.aa_value = *syncUUID;
2069
2070         if ( syncuuid_inserted ) {
2071                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2072                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2073         }
2074         op->ors_filter = &f;
2075
2076         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2077         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2078                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2079         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2080         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2081                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2082         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2083         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2084
2085         op->o_tag = LDAP_REQ_SEARCH;
2086         op->ors_scope = LDAP_SCOPE_SUBTREE;
2087         op->ors_deref = LDAP_DEREF_NEVER;
2088
2089         /* get the entry for this UUID */
2090         op->o_req_dn = si->si_base;
2091         op->o_req_ndn = si->si_base;
2092
2093         op->o_time = slap_get_time();
2094         op->ors_tlimit = SLAP_NO_LIMIT;
2095         op->ors_slimit = 1;
2096
2097         op->ors_attrs = slap_anlist_all_attributes;
2098         op->ors_attrsonly = 0;
2099
2100         /* set callback function */
2101         op->o_callback = &cb;
2102         cb.sc_response = dn_callback;
2103         cb.sc_private = &dni;
2104         dni.new_entry = entry;
2105         dni.modlist = modlist;
2106
2107         if ( limits_check( op, &rs_search ) == 0 ) {
2108                 rc = be->be_search( op, &rs_search );
2109                 Debug( LDAP_DEBUG_SYNC,
2110                                 "syncrepl_entry: %s be_search (%d)\n",
2111                                 si->si_ridtxt, rc, 0 );
2112         }
2113
2114         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2115                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2116         }
2117
2118         cb.sc_response = null_callback;
2119         cb.sc_private = si;
2120
2121         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2122                 Debug( LDAP_DEBUG_SYNC,
2123                                 "syncrepl_entry: %s %s\n",
2124                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2125         } else {
2126                 Debug( LDAP_DEBUG_SYNC,
2127                                 "syncrepl_entry: %s %s\n",
2128                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2129         }
2130
2131         assert( BER_BVISNULL( &op->o_csn ) );
2132         if ( syncCSN ) {
2133                 slap_queue_csn( op, syncCSN );
2134         }
2135
2136         slap_op_time( &op->o_time, &op->o_tincr );
2137         switch ( syncstate ) {
2138         case LDAP_SYNC_ADD:
2139         case LDAP_SYNC_MODIFY:
2140                 if ( BER_BVISNULL( &op->o_csn ))
2141                 {
2142
2143                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2144                         if ( a ) {
2145                                 /* FIXME: op->o_csn is assumed to be
2146                                  * on the thread's slab; this needs
2147                                  * to be cleared ASAP.
2148                                  * What happens if already present?
2149                                  */
2150                                 assert( BER_BVISNULL( &op->o_csn ) );
2151                                 op->o_csn = a->a_vals[0];
2152                                 freecsn = 0;
2153                         }
2154                 }
2155 retry_add:;
2156                 if ( BER_BVISNULL( &dni.dn ) ) {
2157
2158                         op->o_req_dn = entry->e_name;
2159                         op->o_req_ndn = entry->e_nname;
2160                         op->o_tag = LDAP_REQ_ADD;
2161                         op->ora_e = entry;
2162                         op->o_bd = si->si_wbe;
2163
2164                         rc = op->o_bd->be_add( op, &rs_add );
2165                         Debug( LDAP_DEBUG_SYNC,
2166                                         "syncrepl_entry: %s be_add (%d)\n",
2167                                         si->si_ridtxt, rc, 0 );
2168                         switch ( rs_add.sr_err ) {
2169                         case LDAP_SUCCESS:
2170                                 if ( op->ora_e == entry ) {
2171                                         be_entry_release_w( op, entry );
2172                                 }
2173                                 entry = NULL;
2174                                 break;
2175
2176                         case LDAP_REFERRAL:
2177                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2178                          * only if the suffix entry is not present */
2179                         case LDAP_NO_SUCH_OBJECT:
2180                                 rc = syncrepl_add_glue( op, entry );
2181                                 entry = NULL;
2182                                 break;
2183
2184                         /* if an entry was added via syncrepl_add_glue(),
2185                          * it likely has no entryUUID, so the previous
2186                          * be_search() doesn't find it.  In this case,
2187                          * give syncrepl a chance to modify it. Also
2188                          * allow for entries that were recreated with the
2189                          * same DN but a different entryUUID.
2190                          */
2191                         case LDAP_ALREADY_EXISTS:
2192                                 if ( retry ) {
2193                                         Operation       op2 = *op;
2194                                         SlapReply       rs2 = { 0 };
2195                                         slap_callback   cb2 = { 0 };
2196
2197                                         op2.o_bd = be;
2198                                         op2.o_tag = LDAP_REQ_SEARCH;
2199                                         op2.o_req_dn = entry->e_name;
2200                                         op2.o_req_ndn = entry->e_nname;
2201                                         op2.ors_scope = LDAP_SCOPE_BASE;
2202                                         op2.ors_deref = LDAP_DEREF_NEVER;
2203                                         op2.ors_attrs = slap_anlist_all_attributes;
2204                                         op2.ors_attrsonly = 0;
2205                                         op2.ors_limit = NULL;
2206                                         op2.ors_slimit = 1;
2207                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2208
2209                                         f.f_choice = LDAP_FILTER_PRESENT;
2210                                         f.f_desc = slap_schema.si_ad_objectClass;
2211                                         op2.ors_filter = &f;
2212                                         op2.ors_filterstr = generic_filterstr;
2213
2214                                         op2.o_callback = &cb2;
2215                                         cb2.sc_response = dn_callback;
2216                                         cb2.sc_private = &dni;
2217
2218                                         rc = be->be_search( &op2, &rs2 );
2219                                         if ( rc ) goto done;
2220
2221                                         retry = 0;
2222                                         slap_op_time( &op->o_time, &op->o_tincr );
2223                                         goto retry_add;
2224                                 }
2225                                 /* FALLTHRU */
2226
2227                         default:
2228                                 Debug( LDAP_DEBUG_ANY,
2229                                         "syncrepl_entry: %s be_add failed (%d)\n",
2230                                         si->si_ridtxt, rs_add.sr_err, 0 );
2231                                 break;
2232                         }
2233                         op->o_bd = be;
2234                         goto done;
2235                 }
2236                 /* FALLTHRU */
2237                 op->o_req_dn = dni.dn;
2238                 op->o_req_ndn = dni.ndn;
2239                 if ( dni.renamed ) {
2240                         struct berval noldp, newp;
2241                         Modifications *mod, **modtail, **ml, *m2;
2242                         int i, got_replace = 0, just_rename = 0;
2243
2244                         op->o_tag = LDAP_REQ_MODRDN;
2245                         dnRdn( &entry->e_name, &op->orr_newrdn );
2246                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2247
2248                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2249                                 dnParent( &entry->e_name, &newp );
2250                                 op->orr_newSup = &newp;
2251                                 op->orr_nnewSup = &dni.nnewSup;
2252                         } else {
2253                                 op->orr_newSup = NULL;
2254                                 op->orr_nnewSup = NULL;
2255                         }
2256                         op->orr_deleteoldrdn = dni.delOldRDN;
2257                         op->orr_modlist = NULL;
2258                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2259                                 goto done;
2260                         }
2261
2262                         /* Drop the RDN-related mods from this op, because their
2263                          * equivalents were just setup by slap_modrdn2mods.
2264                          *
2265                          * If delOldRDN is TRUE then we should see a delete modop
2266                          * for oldDesc. We might see a replace instead.
2267                          *  delete with no values: therefore newDesc != oldDesc.
2268                          *   if oldNattr had only one value, then Drop this op.
2269                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2270                          *  delete with N values: Drop oldRDN value, keep remainder.
2271                          *  replace with 1 value: if oldNattr had only one value and
2272                          *     newDesc == oldDesc, Drop this op.
2273                          * Any other cases must be left intact.
2274                          *
2275                          * We should also see an add modop for newDesc. (But not if
2276                          * we got a replace modop due to delOldRDN.) If it has
2277                          * multiple values, we'll have to drop the new RDN value.
2278                          */
2279                         modtail = &op->orr_modlist;
2280                         if ( dni.delOldRDN ) {
2281                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2282                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2283                                                 mod = *ml;
2284                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2285                                                         dni.oldDesc != dni.newDesc ) {
2286                                                         /* This Replace is due to other Mods.
2287                                                          * Just let it ride.
2288                                                          */
2289                                                         continue;
2290                                                 }
2291                                                 if ( mod->sml_numvals <= 1 &&
2292                                                         dni.oldNattr->a_numvals == 1 &&
2293                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2294                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2295                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2296                                                                 got_replace = 1;
2297                                                         /* Drop this op */
2298                                                         *ml = mod->sml_next;
2299                                                         mod->sml_next = NULL;
2300                                                         slap_mods_free( mod, 1 );
2301                                                         break;
2302                                                 }
2303                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2304                                                         continue;
2305                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2306                                                         if ( m2->sml_desc == dni.oldDesc &&
2307                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2308                                                 }
2309                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2310                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2311                                                                 mod->sml_numvals--;
2312                                                                 ch_free( mod->sml_values[i].bv_val );
2313                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2314                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2315                                                                 if ( mod->sml_nvalues ) {
2316                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2317                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2318                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2319                                                                 }
2320                                                                 break;
2321                                                         }
2322                                                 }
2323                                                 break;
2324                                         }
2325                                 }
2326                         }
2327                         if ( !got_replace ) {
2328                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2329                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2330                                                 mod = *ml;
2331                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2332                                                         continue;
2333                                                 if ( mod->sml_numvals == 1 ) {
2334                                                         /* Drop this op */
2335                                                         *ml = mod->sml_next;
2336                                                         mod->sml_next = NULL;
2337                                                         slap_mods_free( mod, 1 );
2338                                                         break;
2339                                                 }
2340                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2341                                                         if ( m2->sml_desc == dni.oldDesc &&
2342                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2343                                                 }
2344                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2345                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2346                                                                 mod->sml_numvals--;
2347                                                                 ch_free( mod->sml_values[i].bv_val );
2348                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2349                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2350                                                                 if ( mod->sml_nvalues ) {
2351                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2352                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2353                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2354                                                                 }
2355                                                                 break;
2356                                                         }
2357                                                 }
2358                                                 break;
2359                                         }
2360                                 }
2361                         }
2362
2363                         /* RDNs must be NUL-terminated for back-ldap */
2364                         noldp = op->orr_newrdn;
2365                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2366                         noldp = op->orr_nnewrdn;
2367                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2368
2369                         /* Setup opattrs too */
2370                         {
2371                                 static AttributeDescription *nullattr = NULL;
2372                                 static AttributeDescription **const opattrs[] = {
2373                                         &slap_schema.si_ad_entryCSN,
2374                                         &slap_schema.si_ad_modifiersName,
2375                                         &slap_schema.si_ad_modifyTimestamp,
2376                                         &nullattr
2377                                 };
2378                                 AttributeDescription *opattr;
2379                                 int i;
2380
2381                                 modtail = &m2;
2382                                 /* pull mod off incoming modlist */
2383                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2384                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
2385                                         {
2386                                                 if ( (*ml)->sml_desc == opattr ) {
2387                                                         mod = *ml;
2388                                                         *ml = mod->sml_next;
2389                                                         mod->sml_next = NULL;
2390                                                         *modtail = mod;
2391                                                         modtail = &mod->sml_next;
2392                                                         break;
2393                                                 }
2394                                         }
2395                                 }
2396                                 /* If there are still Modifications left, put the opattrs
2397                                  * back, and let be_modify run. Otherwise, append the opattrs
2398                                  * to the orr_modlist.
2399                                  */
2400                                 if ( dni.mods ) {
2401                                         mod = dni.mods;
2402                                         /* don't set a CSN for the rename op */
2403                                         if ( syncCSN )
2404                                                 slap_graduate_commit_csn( op );
2405                                 } else {
2406                                         mod = op->orr_modlist;
2407                                         just_rename = 1;
2408                                 }
2409                                 for ( ; mod->sml_next; mod=mod->sml_next );
2410                                 mod->sml_next = m2;
2411                         }
2412                         op->o_bd = si->si_wbe;
2413                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2414                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2415                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2416
2417                         slap_mods_free( op->orr_modlist, 1 );
2418                         Debug( LDAP_DEBUG_SYNC,
2419                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2420                                         si->si_ridtxt, rc, 0 );
2421                         op->o_bd = be;
2422                         /* Renamed entries may still have other mods so just fallthru */
2423                         op->o_req_dn = entry->e_name;
2424                         op->o_req_ndn = entry->e_nname;
2425                         /* Use CSN on the modify */
2426                         if ( syncCSN && !just_rename )
2427                                 slap_queue_csn( op, syncCSN );
2428                 }
2429                 if ( dni.mods ) {
2430                         op->o_tag = LDAP_REQ_MODIFY;
2431                         op->orm_modlist = dni.mods;
2432                         op->orm_no_opattrs = 1;
2433                         op->o_bd = si->si_wbe;
2434
2435                         rc = op->o_bd->be_modify( op, &rs_modify );
2436                         slap_mods_free( op->orm_modlist, 1 );
2437                         op->orm_no_opattrs = 0;
2438                         Debug( LDAP_DEBUG_SYNC,
2439                                         "syncrepl_entry: %s be_modify (%d)\n",
2440                                         si->si_ridtxt, rc, 0 );
2441                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2442                                 Debug( LDAP_DEBUG_ANY,
2443                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2444                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2445                         }
2446                         op->o_bd = be;
2447                 } else if ( !dni.renamed ) {
2448                         Debug( LDAP_DEBUG_SYNC,
2449                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2450                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2451                 }
2452                 goto done;
2453         case LDAP_SYNC_DELETE :
2454                 if ( !BER_BVISNULL( &dni.dn ) ) {
2455                         op->o_req_dn = dni.dn;
2456                         op->o_req_ndn = dni.ndn;
2457                         op->o_tag = LDAP_REQ_DELETE;
2458                         op->o_bd = si->si_wbe;
2459                         rc = op->o_bd->be_delete( op, &rs_delete );
2460                         Debug( LDAP_DEBUG_SYNC,
2461                                         "syncrepl_entry: %s be_delete (%d)\n",
2462                                         si->si_ridtxt, rc, 0 );
2463
2464                         while ( rs_delete.sr_err == LDAP_SUCCESS
2465                                 && op->o_delete_glue_parent ) {
2466                                 op->o_delete_glue_parent = 0;
2467                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2468                                         slap_callback cb = { NULL };
2469                                         cb.sc_response = slap_null_cb;
2470                                         dnParent( &op->o_req_ndn, &pdn );
2471                                         op->o_req_dn = pdn;
2472                                         op->o_req_ndn = pdn;
2473                                         op->o_callback = &cb;
2474                                         op->o_bd->be_delete( op, &rs_delete );
2475                                 } else {
2476                                         break;
2477                                 }
2478                         }
2479                         op->o_bd = be;
2480                 }
2481                 goto done;
2482
2483         default :
2484                 Debug( LDAP_DEBUG_ANY,
2485                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2486                 goto done;
2487         }
2488
2489 done:
2490         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2491                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2492                 BER_BVZERO( &syncUUID_strrep );
2493         }
2494         if ( !BER_BVISNULL( &dni.ndn ) ) {
2495                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2496         }
2497         if ( !BER_BVISNULL( &dni.dn ) ) {
2498                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2499         }
2500         if ( entry ) {
2501                 entry_free( entry );
2502         }
2503         if ( syncCSN ) {
2504                 slap_graduate_commit_csn( op );
2505         }
2506         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2507                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2508         }
2509         BER_BVZERO( &op->o_csn );
2510         return rc;
2511 }
2512
2513 static struct berval gcbva[] = {
2514         BER_BVC("top"),
2515         BER_BVC("glue"),
2516         BER_BVNULL
2517 };
2518
2519 #define NP_DELETE_ONE   2
2520
2521 static void
2522 syncrepl_del_nonpresent(
2523         Operation *op,
2524         syncinfo_t *si,
2525         BerVarray uuids,
2526         struct sync_cookie *sc,
2527         int m )
2528 {
2529         Backend* be = op->o_bd;
2530         slap_callback   cb = { NULL };
2531         SlapReply       rs_search = {REP_RESULT};
2532         SlapReply       rs_delete = {REP_RESULT};
2533         SlapReply       rs_modify = {REP_RESULT};
2534         struct nonpresent_entry *np_list, *np_prev;
2535         int rc;
2536         AttributeName   an[2];
2537
2538         struct berval pdn = BER_BVNULL;
2539         struct berval csn;
2540
2541         op->o_req_dn = si->si_base;
2542         op->o_req_ndn = si->si_base;
2543
2544         cb.sc_response = nonpresent_callback;
2545         cb.sc_private = si;
2546
2547         op->o_callback = &cb;
2548         op->o_tag = LDAP_REQ_SEARCH;
2549         op->ors_scope = si->si_scope;
2550         op->ors_deref = LDAP_DEREF_NEVER;
2551         op->o_time = slap_get_time();
2552         op->ors_tlimit = SLAP_NO_LIMIT;
2553
2554
2555         if ( uuids ) {
2556                 Filter uf;
2557                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2558                 int i;
2559
2560                 op->ors_attrsonly = 1;
2561                 op->ors_attrs = slap_anlist_no_attrs;
2562                 op->ors_limit = NULL;
2563                 op->ors_filter = &uf;
2564
2565                 uf.f_ava = &eq;
2566                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2567                 uf.f_next = NULL;
2568                 uf.f_choice = LDAP_FILTER_EQUALITY;
2569                 si->si_refreshDelete |= NP_DELETE_ONE;
2570
2571                 for (i=0; uuids[i].bv_val; i++) {
2572                         op->ors_slimit = 1;
2573                         uf.f_av_value = uuids[i];
2574                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2575                         rc = be->be_search( op, &rs_search );
2576                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2577                 }
2578                 si->si_refreshDelete ^= NP_DELETE_ONE;
2579         } else {
2580                 Filter *cf, *of;
2581                 Filter mmf[2];
2582                 AttributeAssertion mmaa;
2583
2584                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2585                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2586                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2587                 op->ors_attrs = an;
2588                 op->ors_slimit = SLAP_NO_LIMIT;
2589                 op->ors_attrsonly = 0;
2590                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2591                 /* In multimaster, updates can continue to arrive while
2592                  * we're searching. Limit the search result to entries
2593                  * older than our newest cookie CSN.
2594                  */
2595                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2596                         Filter *f;
2597                         int i;
2598
2599                         f = mmf;
2600                         f->f_choice = LDAP_FILTER_AND;
2601                         f->f_next = op->ors_filter;
2602                         f->f_and = f+1;
2603                         of = f->f_and;
2604                         f = of;
2605                         f->f_choice = LDAP_FILTER_LE;
2606                         f->f_ava = &mmaa;
2607                         f->f_av_desc = slap_schema.si_ad_entryCSN;
2608                         f->f_next = NULL;
2609                         BER_BVZERO( &f->f_av_value );
2610                         for ( i=0; i<sc->numcsns; i++ ) {
2611                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
2612                                         f->f_av_value = sc->ctxcsn[i];
2613                         }
2614                         of = op->ors_filter;
2615                         op->ors_filter = mmf;
2616                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2617                 } else {
2618                         cf = NULL;
2619                         op->ors_filterstr = si->si_filterstr;
2620                 }
2621                 op->o_nocaching = 1;
2622
2623                 if ( limits_check( op, &rs_search ) == 0 ) {
2624                         rc = be->be_search( op, &rs_search );
2625                 }
2626                 if ( SLAP_MULTIMASTER( op->o_bd )) {
2627                         op->ors_filter = of;
2628                 }
2629                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
2630                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
2631                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2632                 }
2633
2634         }
2635
2636         op->o_nocaching = 0;
2637
2638         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2639
2640                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
2641                         csn = sc->ctxcsn[m];
2642                 } else {
2643                         csn = si->si_syncCookie.ctxcsn[0];
2644                 }
2645
2646                 op->o_bd = si->si_wbe;
2647                 slap_queue_csn( op, &csn );
2648
2649                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2650                 while ( np_list != NULL ) {
2651                         LDAP_LIST_REMOVE( np_list, npe_link );
2652                         np_prev = np_list;
2653                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2654                         op->o_tag = LDAP_REQ_DELETE;
2655                         op->o_callback = &cb;
2656                         cb.sc_response = null_callback;
2657                         cb.sc_private = si;
2658                         op->o_req_dn = *np_prev->npe_name;
2659                         op->o_req_ndn = *np_prev->npe_nname;
2660                         rc = op->o_bd->be_delete( op, &rs_delete );
2661                         Debug( LDAP_DEBUG_SYNC,
2662                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2663                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2664
2665                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2666                                 Modifications mod1, mod2;
2667                                 mod1.sml_op = LDAP_MOD_REPLACE;
2668                                 mod1.sml_flags = 0;
2669                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2670                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2671                                 mod1.sml_numvals = 2;
2672                                 mod1.sml_values = &gcbva[0];
2673                                 mod1.sml_nvalues = NULL;
2674                                 mod1.sml_next = &mod2;
2675
2676                                 mod2.sml_op = LDAP_MOD_REPLACE;
2677                                 mod2.sml_flags = 0;
2678                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2679                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2680                                 mod2.sml_numvals = 1;
2681                                 mod2.sml_values = &gcbva[1];
2682                                 mod2.sml_nvalues = NULL;
2683                                 mod2.sml_next = NULL;
2684
2685                                 op->o_tag = LDAP_REQ_MODIFY;
2686                                 op->orm_modlist = &mod1;
2687
2688                                 rc = op->o_bd->be_modify( op, &rs_modify );
2689                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2690                         }
2691
2692                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2693                                         op->o_delete_glue_parent ) {
2694                                 op->o_delete_glue_parent = 0;
2695                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2696                                         slap_callback cb = { NULL };
2697                                         cb.sc_response = slap_null_cb;
2698                                         dnParent( &op->o_req_ndn, &pdn );
2699                                         op->o_req_dn = pdn;
2700                                         op->o_req_ndn = pdn;
2701                                         op->o_callback = &cb;
2702                                         /* give it a root privil ? */
2703                                         op->o_bd->be_delete( op, &rs_delete );
2704                                 } else {
2705                                         break;
2706                                 }
2707                         }
2708
2709                         op->o_delete_glue_parent = 0;
2710
2711                         ber_bvfree( np_prev->npe_name );
2712                         ber_bvfree( np_prev->npe_nname );
2713                         ch_free( np_prev );
2714
2715                         if ( slapd_shutdown ) {
2716                                 break;
2717                         }
2718                 }
2719
2720                 slap_graduate_commit_csn( op );
2721                 op->o_bd = be;
2722
2723                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2724                 BER_BVZERO( &op->o_csn );
2725         }
2726
2727         return;
2728 }
2729
2730 int
2731 syncrepl_add_glue(
2732         Operation* op,
2733         Entry *e )
2734 {
2735         Backend *be = op->o_bd;
2736         slap_callback cb = { NULL };
2737         Attribute       *a;
2738         int     rc;
2739         int suffrdns;
2740         int i;
2741         struct berval dn = BER_BVNULL;
2742         struct berval ndn = BER_BVNULL;
2743         Entry   *glue;
2744         SlapReply       rs_add = {REP_RESULT};
2745         struct berval   ptr, nptr;
2746         char            *comma;
2747
2748         op->o_tag = LDAP_REQ_ADD;
2749         op->o_callback = &cb;
2750         cb.sc_response = null_callback;
2751         cb.sc_private = NULL;
2752
2753         dn = e->e_name;
2754         ndn = e->e_nname;
2755
2756         /* count RDNs in suffix */
2757         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2758                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2759                         comma++;
2760                         ptr.bv_len -= comma - ptr.bv_val;
2761                         ptr.bv_val = comma;
2762                         i++;
2763                 }
2764                 suffrdns = i;
2765         } else {
2766                 /* suffix is "" */
2767                 suffrdns = 0;
2768         }
2769
2770         /* Start with BE suffix */
2771         ptr = dn;
2772         for ( i = 0; i < suffrdns; i++ ) {
2773                 comma = ber_bvrchr( &ptr, ',' );
2774                 if ( comma != NULL ) {
2775                         ptr.bv_len = comma - ptr.bv_val;
2776                 } else {
2777                         ptr.bv_len = 0;
2778                         break;
2779                 }
2780         }
2781
2782         if ( !BER_BVISEMPTY( &ptr ) ) {
2783                 dn.bv_len -= ptr.bv_len + 1;
2784                 dn.bv_val += ptr.bv_len + 1;
2785         }
2786
2787         /* the normalizedDNs are always the same length, no counting
2788          * required.
2789          */
2790         nptr = ndn;
2791         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2792                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2793                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2794
2795                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2796
2797         } else {
2798                 nptr.bv_len = 0;
2799         }
2800
2801         while ( ndn.bv_val > e->e_nname.bv_val ) {
2802                 glue = entry_alloc();
2803                 ber_dupbv( &glue->e_name, &dn );
2804                 ber_dupbv( &glue->e_nname, &ndn );
2805
2806                 a = attr_alloc( slap_schema.si_ad_objectClass );
2807
2808                 a->a_numvals = 2;
2809                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2810                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2811                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2812                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2813
2814                 a->a_nvals = a->a_vals;
2815
2816                 a->a_next = glue->e_attrs;
2817                 glue->e_attrs = a;
2818
2819                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2820
2821                 a->a_numvals = 1;
2822                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2823                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2824                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2825
2826                 a->a_nvals = a->a_vals;
2827
2828                 a->a_next = glue->e_attrs;
2829                 glue->e_attrs = a;
2830
2831                 op->o_req_dn = glue->e_name;
2832                 op->o_req_ndn = glue->e_nname;
2833                 op->ora_e = glue;
2834                 rc = be->be_add ( op, &rs_add );
2835                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2836                         if ( op->ora_e == glue )
2837                                 be_entry_release_w( op, glue );
2838                 } else {
2839                 /* incl. ALREADY EXIST */
2840                         entry_free( glue );
2841                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2842                                 entry_free( e );
2843                                 return rc;
2844                         }
2845                 }
2846
2847                 /* Move to next child */
2848                 comma = ber_bvrchr( &ptr, ',' );
2849                 if ( comma == NULL ) {
2850                         break;
2851                 }
2852                 ptr.bv_len = comma - ptr.bv_val;
2853
2854                 dn.bv_val = ++comma;
2855                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2856
2857                 comma = ber_bvrchr( &nptr, ',' );
2858                 assert( comma != NULL );
2859                 nptr.bv_len = comma - nptr.bv_val;
2860
2861                 ndn.bv_val = ++comma;
2862                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2863         }
2864
2865         op->o_req_dn = e->e_name;
2866         op->o_req_ndn = e->e_nname;
2867         op->ora_e = e;
2868         rc = be->be_add ( op, &rs_add );
2869         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2870                 if ( op->ora_e == e )
2871                         be_entry_release_w( op, e );
2872         } else {
2873                 entry_free( e );
2874         }
2875
2876         return rc;
2877 }
2878
2879 static int
2880 syncrepl_updateCookie(
2881         syncinfo_t *si,
2882         Operation *op,
2883         struct berval *pdn,
2884         struct sync_cookie *syncCookie )
2885 {
2886         Backend *be = op->o_bd;
2887         Modifications mod;
2888         struct berval first = BER_BVNULL;
2889
2890         int rc, i, j;
2891         ber_len_t len;
2892
2893         slap_callback cb = { NULL };
2894         SlapReply       rs_modify = {REP_RESULT};
2895
2896         mod.sml_op = LDAP_MOD_REPLACE;
2897         mod.sml_desc = slap_schema.si_ad_contextCSN;
2898         mod.sml_type = mod.sml_desc->ad_cname;
2899         mod.sml_flags = SLAP_MOD_INTERNAL;
2900         mod.sml_nvalues = NULL;
2901         mod.sml_next = NULL;
2902
2903         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2904
2905         /* clone the cookieState CSNs so we can Replace the whole thing */
2906         mod.sml_numvals = si->si_cookieState->cs_num;
2907         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
2908         for ( i=0; i<mod.sml_numvals; i++ )
2909                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
2910         BER_BVZERO( &mod.sml_values[i] );
2911
2912         /* find any CSNs in the syncCookie that are newer than the cookieState */
2913         for ( i=0; i<syncCookie->numcsns; i++ ) {
2914                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2915                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2916                                 continue;
2917                         len = syncCookie->ctxcsn[i].bv_len;
2918                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2919                                 len = si->si_cookieState->cs_vals[j].bv_len;
2920                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2921                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2922                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
2923                                 if ( BER_BVISNULL( &first ) ) {
2924                                         first = syncCookie->ctxcsn[i];
2925
2926                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2927                                 {
2928                                         first = syncCookie->ctxcsn[i];
2929                                 }
2930                         }
2931                         break;
2932                 }
2933                 /* there was no match for this SID, it's a new CSN */
2934                 if ( j == si->si_cookieState->cs_num ) {
2935                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
2936                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
2937                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
2938                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
2939                         if ( BER_BVISNULL( &first ) ) {
2940                                 first = syncCookie->ctxcsn[i];
2941                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
2942                         {
2943                                 first = syncCookie->ctxcsn[i];
2944                         }
2945                 }
2946         }
2947         /* Should never happen, ITS#5065 */
2948         if ( BER_BVISNULL( &first )) {
2949                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2950                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
2951                 return 0;
2952         }
2953         op->o_bd = si->si_wbe;
2954         slap_queue_csn( op, &first );
2955
2956         op->o_tag = LDAP_REQ_MODIFY;
2957
2958         cb.sc_response = null_callback;
2959         cb.sc_private = si;
2960
2961         op->o_callback = &cb;
2962         op->o_req_dn = op->o_bd->be_suffix[0];
2963         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2964
2965         /* update contextCSN */
2966         op->o_dont_replicate = 1;
2967
2968         op->orm_modlist = &mod;
2969         op->orm_no_opattrs = 1;
2970         rc = op->o_bd->be_modify( op, &rs_modify );
2971         op->orm_no_opattrs = 0;
2972         op->o_dont_replicate = 0;
2973
2974         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2975                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2976                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2977                 /* If we replaced any old values */
2978                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
2979                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
2980                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
2981                                                 &mod.sml_values[i] );
2982                 }
2983                 /* Handle any added values */
2984                 if ( i < mod.sml_numvals ) {
2985                         si->si_cookieState->cs_num = mod.sml_numvals;
2986                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
2987                         free( si->si_cookieState->cs_sids );
2988                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2989                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2990                 }
2991
2992                 si->si_cookieState->cs_age++;
2993                 si->si_cookieAge = si->si_cookieState->cs_age;
2994         } else {
2995                 Debug( LDAP_DEBUG_ANY,
2996                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2997                         si->si_ridtxt, rs_modify.sr_err, 0 );
2998         }
2999         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3000
3001         op->o_bd = be;
3002         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3003         BER_BVZERO( &op->o_csn );
3004         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3005         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3006
3007         return rc;
3008 }
3009
3010 static void
3011 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3012         Modifications ***mret, Modifications ***mcur )
3013 {
3014         int i, j;
3015         Modifications *mod, **modtail;
3016
3017         modtail = *mret;
3018
3019         if ( old ) {
3020                 int n, o, nn, no;
3021                 struct berval **adds, **dels;
3022                 /* count old and new */
3023                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3024                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3025
3026                 /* there MUST be both old and new values */
3027                 assert( o != 0 );
3028                 assert( n != 0 );
3029                 j = 0;
3030
3031                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3032                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3033
3034                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3035                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3036
3037                 nn = n; no = o;
3038
3039                 for ( i=0; i<o; i++ ) {
3040                         for ( j=0; j<n; j++ ) {
3041                                 if ( !adds[j] )
3042                                         continue;
3043                                 if ( bvmatch( dels[i], adds[j] ) ) {
3044                                         no--;
3045                                         nn--;
3046                                         adds[j] = NULL;
3047                                         dels[i] = NULL;
3048                                         break;
3049                                 }
3050                         }
3051                 }
3052
3053                 /* Don't delete/add an objectClass, always use the replace op.
3054                  * Modify would fail if provider has replaced entry with a new,
3055                  * and the new explicitly includes a superior of a class that was
3056                  * only included implicitly in the old entry.  Ref ITS#5517.
3057                  *
3058                  * Also use replace op if attr has no equality matching rule.
3059                  * (ITS#5781)
3060                  */
3061                 if ( nn && no < o &&
3062                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3063                          !old->a_desc->ad_type->sat_equality ))
3064                         no = o;
3065
3066                 i = j;
3067                 /* all old values were deleted, just use the replace op */
3068                 if ( no == o ) {
3069                         i = j-1;
3070                 } else if ( no ) {
3071                 /* delete some values */
3072                         mod = ch_malloc( sizeof( Modifications ) );
3073                         mod->sml_op = LDAP_MOD_DELETE;
3074                         mod->sml_flags = 0;
3075                         mod->sml_desc = old->a_desc;
3076                         mod->sml_type = mod->sml_desc->ad_cname;
3077                         mod->sml_numvals = no;
3078                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3079                         if ( old->a_vals != old->a_nvals ) {
3080                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3081                         } else {
3082                                 mod->sml_nvalues = NULL;
3083                         }
3084                         j = 0;
3085                         for ( i = 0; i < o; i++ ) {
3086                                 if ( !dels[i] ) continue;
3087                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3088                                 if ( mod->sml_nvalues ) {
3089                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3090                                 }
3091                                 j++;
3092                         }
3093                         BER_BVZERO( &mod->sml_values[j] );
3094                         if ( mod->sml_nvalues ) {
3095                                 BER_BVZERO( &mod->sml_nvalues[j] );
3096                         }
3097                         *modtail = mod;
3098                         modtail = &mod->sml_next;
3099                         i = j;
3100                 }
3101                 op->o_tmpfree( dels, op->o_tmpmemctx );
3102                 /* some values were added */
3103                 if ( nn && no < o ) {
3104                         mod = ch_malloc( sizeof( Modifications ) );
3105                         mod->sml_op = LDAP_MOD_ADD;
3106                         mod->sml_flags = 0;
3107                         mod->sml_desc = old->a_desc;
3108                         mod->sml_type = mod->sml_desc->ad_cname;
3109                         mod->sml_numvals = nn;
3110                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3111                         if ( old->a_vals != old->a_nvals ) {
3112                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3113                         } else {
3114                                 mod->sml_nvalues = NULL;
3115                         }
3116                         j = 0;
3117                         for ( i = 0; i < n; i++ ) {
3118                                 if ( !adds[i] ) continue;
3119                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3120                                 if ( mod->sml_nvalues ) {
3121                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3122                                 }
3123                                 j++;
3124                         }
3125                         BER_BVZERO( &mod->sml_values[j] );
3126                         if ( mod->sml_nvalues ) {
3127                                 BER_BVZERO( &mod->sml_nvalues[j] );
3128                         }
3129                         *modtail = mod;
3130                         modtail = &mod->sml_next;
3131                         i = j;
3132                 }
3133                 op->o_tmpfree( adds, op->o_tmpmemctx );
3134         } else {
3135                 /* new attr, just use the new mod */
3136                 i = 0;
3137                 j = 1;
3138         }
3139         /* advance to next element */
3140         mod = **mcur;
3141         if ( mod ) {
3142                 if ( i != j ) {
3143                         **mcur = mod->sml_next;
3144                         *modtail = mod;
3145                         modtail = &mod->sml_next;
3146                 } else {
3147                         *mcur = &mod->sml_next;
3148                 }
3149         }
3150         *mret = modtail;
3151 }
3152
3153 static int
3154 dn_callback(
3155         Operation*      op,
3156         SlapReply*      rs )
3157 {
3158         dninfo *dni = op->o_callback->sc_private;
3159
3160         if ( rs->sr_type == REP_SEARCH ) {
3161                 if ( !BER_BVISNULL( &dni->dn ) ) {
3162                         Debug( LDAP_DEBUG_ANY,
3163                                 "dn_callback : consistency error - "
3164                                 "entryUUID is not unique\n", 0, 0, 0 );
3165                 } else {
3166                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
3167                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
3168                         /* If there is a new entry, see if it differs from the old.
3169                          * We compare the non-normalized values so that cosmetic changes
3170                          * in the provider are always propagated.
3171                          */
3172                         if ( dni->new_entry ) {
3173                                 Modifications **modtail, **ml;
3174                                 Attribute *old, *new;
3175                                 struct berval old_rdn, new_rdn;
3176                                 struct berval old_p, new_p;
3177                                 int is_ctx, new_sup = 0;
3178
3179                                 /* If old entry is not a glue entry, make sure new entry
3180                                  * is actually newer than old entry
3181                                  */
3182                                 if ( !is_entry_glue( rs->sr_entry )) {
3183                                         old = attr_find( rs->sr_entry->e_attrs,
3184                                                 slap_schema.si_ad_objectClass );
3185                                         old = attr_find( rs->sr_entry->e_attrs,
3186                                                 slap_schema.si_ad_entryCSN );
3187                                         new = attr_find( dni->new_entry->e_attrs,
3188                                                 slap_schema.si_ad_entryCSN );
3189                                         if ( new && old ) {
3190                                                 int rc;
3191                                                 ber_len_t len = old->a_vals[0].bv_len;
3192                                                 if ( len > new->a_vals[0].bv_len )
3193                                                         len = new->a_vals[0].bv_len;
3194                                                 rc = memcmp( old->a_vals[0].bv_val,
3195                                                         new->a_vals[0].bv_val, len );
3196                                                 if ( rc > 0 ) {
3197                                                         Debug( LDAP_DEBUG_SYNC,
3198                                                                 "dn_callback : new entry is older than ours "
3199                                                                 "%s ours %s, new %s\n",
3200                                                                 rs->sr_entry->e_name.bv_val,
3201                                                                 old->a_vals[0].bv_val,
3202                                                                 new->a_vals[0].bv_val );
3203                                                         return LDAP_SUCCESS;
3204                                                 } else if ( rc == 0 ) {
3205                                                         Debug( LDAP_DEBUG_SYNC,
3206                                                                 "dn_callback : entries have identical CSN "
3207                                                                 "%s %s\n",
3208                                                                 rs->sr_entry->e_name.bv_val,
3209                                                                 old->a_vals[0].bv_val, 0 );
3210                                                         return LDAP_SUCCESS;
3211                                                 }
3212                                         }
3213                                 }
3214
3215                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
3216                                         &op->o_bd->be_nsuffix[0] );
3217
3218                                 /* Did the DN change?
3219                                  * case changes in the parent are ignored,
3220                                  * we only want to know if the RDN was
3221                                  * actually changed.
3222                                  */
3223                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
3224                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
3225                                 dnParent( &rs->sr_entry->e_nname, &old_p );
3226                                 dnParent( &dni->new_entry->e_nname, &new_p );
3227
3228                                 new_sup = !dn_match( &old_p, &new_p );
3229                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
3230                                 {
3231                                         struct berval oldRDN, oldVal;
3232                                         AttributeDescription *ad = NULL;
3233                                         int oldpos, newpos;
3234                                         Attribute *a;
3235
3236                                         dni->renamed = 1;
3237                                         if ( new_sup )
3238                                                 dni->nnewSup = new_p;
3239
3240                                         /* See if the oldRDN was deleted */
3241                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
3242                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
3243                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
3244                                                 oldRDN.bv_val );
3245                                         oldRDN.bv_len -= oldVal.bv_len + 1;
3246                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3247                                         dni->oldDesc = ad;
3248                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
3249                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
3250                                         dni->oldNattr = a;
3251                                         for ( newpos=0, a=dni->new_entry->e_attrs;
3252                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
3253                                         if ( !a || oldpos != newpos || attr_valfind( a,
3254                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
3255                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
3256                                                 SLAP_MR_VALUE_OF_SYNTAX,
3257                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
3258                                         {
3259                                                 dni->delOldRDN = 1;
3260                                         }
3261                                         /* Get the newRDN's desc */
3262                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
3263                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
3264                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
3265                                         ad = NULL;
3266                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
3267                                         dni->newDesc = ad;
3268
3269                                         /* A ModDN has happened, but in Refresh mode other
3270                                          * changes may have occurred before we picked it up.
3271                                          * So fallthru to regular Modify processing.
3272                                          */
3273                                 }
3274
3275                                 modtail = &dni->mods;
3276                                 ml = dni->modlist;
3277
3278                                 /* We assume that attributes are saved in the same order
3279                                  * in the remote and local databases. So if we walk through
3280                                  * the attributeDescriptions one by one they should match in
3281                                  * lock step. If not, look for an add or delete.
3282                                  */
3283                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
3284                                                 old && new; )
3285                                 {
3286                                         /* If we've seen this before, use its mod now */
3287                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
3288                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3289                                                 new = new->a_next;
3290                                                 continue;
3291                                         }
3292                                         /* Skip contextCSN */
3293                                         if ( is_ctx && old->a_desc ==
3294                                                 slap_schema.si_ad_contextCSN ) {
3295                                                 old = old->a_next;
3296                                                 continue;
3297                                         }
3298
3299                                         if ( old->a_desc != new->a_desc ) {
3300                                                 Modifications *mod;
3301                                                 Attribute *tmp;
3302
3303                                                 /* If it's just been re-added later,
3304                                                  * remember that we've seen it.
3305                                                  */
3306                                                 tmp = attr_find( new, old->a_desc );
3307                                                 if ( tmp ) {
3308                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
3309                                                 } else {
3310                                                         /* If it's a new attribute, pull it in.
3311                                                          */
3312                                                         tmp = attr_find( old, new->a_desc );
3313                                                         if ( !tmp ) {
3314                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3315                                                                 new = new->a_next;
3316                                                                 continue;
3317                                                         }
3318                                                         /* Delete old attr */
3319                                                         mod = ch_malloc( sizeof( Modifications ) );
3320                                                         mod->sml_op = LDAP_MOD_DELETE;
3321                                                         mod->sml_flags = 0;
3322                                                         mod->sml_desc = old->a_desc;
3323                                                         mod->sml_type = mod->sml_desc->ad_cname;
3324                                                         mod->sml_numvals = 0;
3325                                                         mod->sml_values = NULL;
3326                                                         mod->sml_nvalues = NULL;
3327                                                         *modtail = mod;
3328                                                         modtail = &mod->sml_next;
3329                                                 }
3330                                                 old = old->a_next;
3331                                                 continue;
3332                                         }
3333                                         /* kludge - always update modifiersName so that it
3334                                          * stays co-located with the other mod opattrs. But only
3335                                          * if we know there are other valid mods.
3336                                          */
3337                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
3338                                                 dni->mods )
3339                                                 attr_cmp( op, NULL, new, &modtail, &ml );
3340                                         else
3341                                                 attr_cmp( op, old, new, &modtail, &ml );
3342                                         new = new->a_next;
3343                                         old = old->a_next;
3344                                 }
3345                                 *modtail = *ml;
3346                                 *ml = NULL;
3347                         }
3348                 }
3349         } else if ( rs->sr_type == REP_RESULT ) {
3350                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
3351                         Debug( LDAP_DEBUG_ANY,
3352                                 "dn_callback : consistency error - "
3353                                 "entryUUID is not unique\n", 0, 0, 0 );
3354                 }
3355         }
3356
3357         return LDAP_SUCCESS;
3358 }
3359
3360 static int
3361 nonpresent_callback(
3362         Operation*      op,
3363         SlapReply*      rs )
3364 {
3365         syncinfo_t *si = op->o_callback->sc_private;
3366         Attribute *a;
3367         int count = 0;
3368         struct berval* present_uuid = NULL;
3369         struct nonpresent_entry *np_entry;
3370
3371         if ( rs->sr_type == REP_RESULT ) {
3372                 count = avl_free( si->si_presentlist, ch_free );
3373                 si->si_presentlist = NULL;
3374
3375         } else if ( rs->sr_type == REP_SEARCH ) {
3376                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
3377                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
3378
3379                         if ( a ) {
3380                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
3381                                         syncuuid_cmp );
3382                         }
3383
3384                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
3385                                 char buf[sizeof("rid=999 non")];
3386
3387                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
3388                                         present_uuid ? "" : "non" );
3389
3390                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
3391                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3392                         }
3393
3394                         if ( a == NULL ) return 0;
3395                 }
3396
3397                 if ( present_uuid == NULL ) {
3398                         np_entry = (struct nonpresent_entry *)
3399                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3400                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3401                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3402                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3403
3404                 } else {
3405                         avl_delete( &si->si_presentlist,
3406                                 &a->a_nvals[0], syncuuid_cmp );
3407                         ch_free( present_uuid );
3408                 }
3409         }
3410         return LDAP_SUCCESS;
3411 }
3412
3413 static int
3414 null_callback(
3415         Operation*      op,
3416         SlapReply*      rs )
3417 {
3418         if ( rs->sr_err != LDAP_SUCCESS &&
3419                 rs->sr_err != LDAP_REFERRAL &&
3420                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3421                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3422                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3423         {
3424                 Debug( LDAP_DEBUG_ANY,
3425                         "null_callback : error code 0x%x\n",
3426                         rs->sr_err, 0, 0 );
3427         }
3428         return LDAP_SUCCESS;
3429 }
3430
3431 static struct berval *
3432 slap_uuidstr_from_normalized(
3433         struct berval* uuidstr,
3434         struct berval* normalized,
3435         void *ctx )
3436 {
3437 #if 0
3438         struct berval *new;
3439         unsigned char nibble;
3440         int i, d = 0;
3441
3442         if ( normalized == NULL ) return NULL;
3443         if ( normalized->bv_len != 16 ) return NULL;
3444
3445         if ( uuidstr ) {
3446                 new = uuidstr;
3447         } else {
3448                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3449                 if ( new == NULL ) {
3450                         return NULL;
3451                 }
3452         }
3453
3454         new->bv_len = 36;
3455
3456         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3457                 if ( new != uuidstr ) {
3458                         slap_sl_free( new, ctx );
3459                 }
3460                 return NULL;
3461         }
3462
3463         for ( i = 0; i < 16; i++ ) {
3464                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3465                         new->bv_val[(i<<1)+d] = '-';
3466                         d += 1;
3467                 }
3468
3469                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3470                 if ( nibble < 10 ) {
3471                         new->bv_val[(i<<1)+d] = nibble + '0';
3472                 } else {
3473                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3474                 }
3475
3476                 nibble = (normalized->bv_val[i]) & 0xF;
3477                 if ( nibble < 10 ) {
3478                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3479                 } else {
3480                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3481                 }
3482         }
3483
3484         new->bv_val[new->bv_len] = '\0';
3485         return new;
3486 #endif
3487
3488         struct berval   *new;
3489         int             rc = 0;
3490
3491         if ( normalized == NULL ) return NULL;
3492         if ( normalized->bv_len != 16 ) return NULL;
3493
3494         if ( uuidstr ) {
3495                 new = uuidstr;
3496
3497         } else {
3498                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3499                 if ( new == NULL ) {
3500                         return NULL;
3501                 }
3502         }
3503
3504         new->bv_len = 36;
3505
3506         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3507                 rc = 1;
3508                 goto done;
3509         }
3510
3511         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3512                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3513
3514 done:;
3515         if ( rc == -1 ) {
3516                 if ( new != NULL ) {
3517                         if ( new->bv_val != NULL ) {
3518                                 slap_sl_free( new->bv_val, ctx );
3519                         }
3520
3521                         if ( new != uuidstr ) {
3522                                 slap_sl_free( new, ctx );
3523                         }
3524                 }
3525                 new = NULL;
3526
3527         } else {
3528                 new->bv_len = rc;
3529         }
3530
3531         return new;
3532 }
3533
3534 static int
3535 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3536 {
3537         const struct berval *uuid1 = v_uuid1;
3538         const struct berval *uuid2 = v_uuid2;
3539         int rc = uuid1->bv_len - uuid2->bv_len;
3540         if ( rc ) return rc;
3541         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3542 }
3543
3544 void
3545 syncinfo_free( syncinfo_t *sie, int free_all )
3546 {
3547         syncinfo_t *si_next;
3548
3549         if ( free_all && sie->si_cookieState ) {
3550                 ch_free( sie->si_cookieState->cs_sids );
3551                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3552                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3553                 ch_free( sie->si_cookieState );
3554         }
3555         do {
3556                 si_next = sie->si_next;
3557
3558                 if ( sie->si_ld ) {
3559                         if ( sie->si_conn ) {
3560                                 connection_client_stop( sie->si_conn );
3561                                 sie->si_conn = NULL;
3562                         }
3563                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3564                 }
3565
3566                 /* re-fetch it, in case it was already removed */
3567                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
3568                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3569                 if ( sie->si_re ) {
3570                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3571                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3572                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3573                 }
3574
3575                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
3576                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3577
3578                 bindconf_free( &sie->si_bindconf );
3579
3580                 if ( sie->si_filterstr.bv_val ) {
3581                         ch_free( sie->si_filterstr.bv_val );
3582                 }
3583                 if ( sie->si_logfilterstr.bv_val ) {
3584                         ch_free( sie->si_logfilterstr.bv_val );
3585                 }
3586                 if ( sie->si_base.bv_val ) {
3587                         ch_free( sie->si_base.bv_val );
3588                 }
3589                 if ( sie->si_logbase.bv_val ) {
3590                         ch_free( sie->si_logbase.bv_val );
3591                 }
3592                 if ( sie->si_attrs ) {
3593                         int i = 0;
3594                         while ( sie->si_attrs[i] != NULL ) {
3595                                 ch_free( sie->si_attrs[i] );
3596                                 i++;
3597                         }
3598                         ch_free( sie->si_attrs );
3599                 }
3600                 if ( sie->si_exattrs ) {
3601                         int i = 0;
3602                         while ( sie->si_exattrs[i] != NULL ) {
3603                                 ch_free( sie->si_exattrs[i] );
3604                                 i++;
3605                         }
3606                         ch_free( sie->si_exattrs );
3607                 }
3608                 if ( sie->si_anlist ) {
3609                         int i = 0;
3610                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3611                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3612                                 i++;
3613                         }
3614                         ch_free( sie->si_anlist );
3615                 }
3616                 if ( sie->si_exanlist ) {
3617                         int i = 0;
3618                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3619                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3620                                 i++;
3621                         }
3622                         ch_free( sie->si_exanlist );
3623                 }
3624                 if ( sie->si_retryinterval ) {
3625                         ch_free( sie->si_retryinterval );
3626                 }
3627                 if ( sie->si_retrynum ) {
3628                         ch_free( sie->si_retrynum );
3629                 }
3630                 if ( sie->si_retrynum_init ) {
3631                         ch_free( sie->si_retrynum_init );
3632                 }
3633                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3634                 if ( sie->si_presentlist ) {
3635                     avl_free( sie->si_presentlist, ch_free );
3636                 }
3637                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3638                         struct nonpresent_entry* npe;
3639                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3640                         LDAP_LIST_REMOVE( npe, npe_link );
3641                         if ( npe->npe_name ) {
3642                                 if ( npe->npe_name->bv_val ) {
3643                                         ch_free( npe->npe_name->bv_val );
3644                                 }
3645                                 ch_free( npe->npe_name );
3646                         }
3647                         if ( npe->npe_nname ) {
3648                                 if ( npe->npe_nname->bv_val ) {
3649                                         ch_free( npe->npe_nname->bv_val );
3650                                 }
3651                                 ch_free( npe->npe_nname );
3652                         }
3653                         ch_free( npe );
3654                 }
3655                 ch_free( sie );
3656                 sie = si_next;
3657         } while ( free_all && si_next );
3658 }
3659
3660
3661
3662 /* NOTE: used & documented in slapd.conf(5) */
3663 #define IDSTR                   "rid"
3664 #define PROVIDERSTR             "provider"
3665 #define SCHEMASTR               "schemachecking"
3666 #define FILTERSTR               "filter"
3667 #define SEARCHBASESTR           "searchbase"
3668 #define SCOPESTR                "scope"
3669 #define ATTRSONLYSTR            "attrsonly"
3670 #define ATTRSSTR                "attrs"
3671 #define TYPESTR                 "type"
3672 #define INTERVALSTR             "interval"
3673 #define RETRYSTR                "retry"
3674 #define SLIMITSTR               "sizelimit"
3675 #define TLIMITSTR               "timelimit"
3676 #define SYNCDATASTR             "syncdata"
3677 #define LOGBASESTR              "logbase"
3678 #define LOGFILTERSTR    "logfilter"
3679
3680 /* FIXME: undocumented */
3681 #define EXATTRSSTR              "exattrs"
3682 #define MANAGEDSAITSTR          "manageDSAit"
3683
3684 /* mandatory */
3685 enum {
3686         GOT_RID                 = 0x00000001U,
3687         GOT_PROVIDER            = 0x00000002U,
3688         GOT_SCHEMACHECKING      = 0x00000004U,
3689         GOT_FILTER              = 0x00000008U,
3690         GOT_SEARCHBASE          = 0x00000010U,
3691         GOT_SCOPE               = 0x00000020U,
3692         GOT_ATTRSONLY           = 0x00000040U,
3693         GOT_ATTRS               = 0x00000080U,
3694         GOT_TYPE                = 0x00000100U,
3695         GOT_INTERVAL            = 0x00000200U,
3696         GOT_RETRY               = 0x00000400U,
3697         GOT_SLIMIT              = 0x00000800U,
3698         GOT_TLIMIT              = 0x00001000U,
3699         GOT_SYNCDATA            = 0x00002000U,
3700         GOT_LOGBASE             = 0x00004000U,
3701         GOT_LOGFILTER           = 0x00008000U,
3702         GOT_EXATTRS             = 0x00010000U,
3703         GOT_MANAGEDSAIT         = 0x00020000U,
3704         GOT_BINDCONF            = 0x00040000U,
3705
3706 /* check */
3707         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
3708 };
3709
3710 static struct {
3711         struct berval key;
3712         int val;
3713 } scopes[] = {
3714         { BER_BVC("base"), LDAP_SCOPE_BASE },
3715         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3716         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3717         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3718         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3719         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3720         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3721         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3722         { BER_BVNULL, 0 }
3723 };
3724
3725 static slap_verbmasks datamodes[] = {
3726         { BER_BVC("default"), SYNCDATA_DEFAULT },
3727         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3728         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3729         { BER_BVNULL, 0 }
3730 };
3731
3732 static int
3733 parse_syncrepl_retry(
3734         ConfigArgs      *c,
3735         char            *arg,
3736         syncinfo_t      *si )
3737 {
3738         char **retry_list;
3739         int j, k, n;
3740         int use_default = 0;
3741
3742         char *val = arg + STRLENOF( RETRYSTR "=" );
3743         if ( strcasecmp( val, "undefined" ) == 0 ) {
3744                 val = "3600 +";
3745                 use_default = 1;
3746         }
3747
3748         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3749         retry_list[0] = NULL;
3750
3751         slap_str2clist( &retry_list, val, " ,\t" );
3752
3753         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3754         n = k / 2;
3755         if ( k % 2 ) {
3756                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3757                         "Error: incomplete syncrepl retry list" );
3758                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3759                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3760                         ch_free( retry_list[k] );
3761                 }
3762                 ch_free( retry_list );
3763                 return 1;
3764         }
3765         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3766         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3767         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3768         for ( j = 0; j < n; j++ ) {
3769                 unsigned long   t;
3770                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3771                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3772                                 "Error: invalid retry interval \"%s\" (#%d)",
3773                                 retry_list[j*2], j );
3774                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3775                         /* do some cleanup */
3776                         return 1;
3777                 }
3778                 si->si_retryinterval[j] = (time_t)t;
3779                 if ( *retry_list[j*2+1] == '+' ) {
3780                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3781                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3782                         j++;
3783                         break;
3784                 } else {
3785                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3786                                         || si->si_retrynum_init[j] <= 0 )
3787                         {
3788                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3789                                         "Error: invalid initial retry number \"%s\" (#%d)",
3790                                         retry_list[j*2+1], j );
3791                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3792                                 /* do some cleanup */
3793                                 return 1;
3794                         }
3795                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3796                                         || si->si_retrynum[j] <= 0 )
3797                         {
3798                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3799                                         "Error: invalid retry number \"%s\" (#%d)",
3800                                         retry_list[j*2+1], j );
3801                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3802                                 /* do some cleanup */
3803                                 return 1;
3804                         }
3805                 }
3806         }
3807         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3808         si->si_retrynum[j] = RETRYNUM_TAIL;
3809         si->si_retryinterval[j] = 0;
3810
3811         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3812                 ch_free( retry_list[k] );
3813         }
3814         ch_free( retry_list );
3815         if ( !use_default ) {
3816                 si->si_got |= GOT_RETRY;
3817         }
3818
3819         return 0;
3820 }
3821
3822 static int
3823 parse_syncrepl_line(
3824         ConfigArgs      *c,
3825         syncinfo_t      *si )
3826 {
3827         int     i;
3828         char    *val;
3829
3830         for ( i = 1; i < c->argc; i++ ) {
3831                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3832                                         STRLENOF( IDSTR "=" ) ) )
3833                 {
3834                         int tmp;
3835                         /* '\0' string terminator accounts for '=' */
3836                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3837                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3838                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3839                                         "Error: parse_syncrepl_line: "
3840                                         "unable to parse syncrepl id \"%s\"", val );
3841                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3842                                 return -1;
3843                         }
3844                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3845                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3846                                         "Error: parse_syncrepl_line: "
3847                                         "syncrepl id %d is out of range [0..4095]", tmp );
3848                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3849                                 return -1;
3850                         }
3851                         si->si_rid = tmp;
3852                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3853                         si->si_got |= GOT_RID;
3854                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3855                                         STRLENOF( PROVIDERSTR "=" ) ) )
3856                 {
3857                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3858                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3859                         si->si_got |= GOT_PROVIDER;
3860                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3861                                         STRLENOF( SCHEMASTR "=" ) ) )
3862                 {
3863                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3864                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3865                                 si->si_schemachecking = 1;
3866                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3867                                 si->si_schemachecking = 0;
3868                         } else {
3869                                 si->si_schemachecking = 1;
3870                         }
3871                         si->si_got |= GOT_SCHEMACHECKING;
3872                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3873                                         STRLENOF( FILTERSTR "=" ) ) )
3874                 {
3875                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3876                         if ( si->si_filterstr.bv_val )
3877                                 ch_free( si->si_filterstr.bv_val );
3878                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3879                         si->si_got |= GOT_FILTER;
3880                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3881                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3882                 {
3883                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3884                         if ( si->si_logfilterstr.bv_val )
3885                                 ch_free( si->si_logfilterstr.bv_val );
3886                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3887                         si->si_got |= GOT_LOGFILTER;
3888                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3889                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3890                 {
3891                         struct berval   bv;
3892                         int             rc;
3893
3894                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3895                         if ( si->si_base.bv_val ) {
3896                                 ch_free( si->si_base.bv_val );
3897                         }
3898                         ber_str2bv( val, 0, 0, &bv );
3899                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3900                         if ( rc != LDAP_SUCCESS ) {
3901                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3902                                         "Invalid base DN \"%s\": %d (%s)",
3903                                         val, rc, ldap_err2string( rc ) );
3904                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3905                                 return -1;
3906                         }
3907                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3908                                 ch_free( si->si_base.bv_val );
3909                                 BER_BVZERO( &si->si_base );
3910                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3911                                         "Base DN \"%s\" is not within the database naming context",
3912                                         val );
3913                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3914                                 return -1;
3915                         }
3916                         si->si_got |= GOT_SEARCHBASE;
3917                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3918                                         STRLENOF( LOGBASESTR "=" ) ) )
3919                 {
3920                         struct berval   bv;
3921                         int             rc;
3922
3923                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3924                         if ( si->si_logbase.bv_val ) {
3925                                 ch_free( si->si_logbase.bv_val );
3926                         }
3927                         ber_str2bv( val, 0, 0, &bv );
3928                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3929                         if ( rc != LDAP_SUCCESS ) {
3930                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3931                                         "Invalid logbase DN \"%s\": %d (%s)",
3932                                         val, rc, ldap_err2string( rc ) );
3933                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3934                                 return -1;
3935                         }
3936                         si->si_got |= GOT_LOGBASE;
3937                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3938                                         STRLENOF( SCOPESTR "=" ) ) )
3939                 {
3940                         int j;
3941                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3942                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3943                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3944                                         si->si_scope = scopes[j].val;
3945                                         break;
3946                                 }
3947                         }
3948                         if ( BER_BVISNULL(&scopes[j].key) ) {
3949                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3950                                         "Error: parse_syncrepl_line: "
3951                                         "unknown scope \"%s\"", val);
3952                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3953                                 return -1;
3954                         }
3955                         si->si_got |= GOT_SCOPE;
3956                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3957                                         STRLENOF( ATTRSONLYSTR ) ) )
3958                 {
3959                         si->si_attrsonly = 1;
3960                         si->si_got |= GOT_ATTRSONLY;
3961                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3962                                         STRLENOF( ATTRSSTR "=" ) ) )
3963                 {
3964                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3965                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3966                                 char *attr_fname;
3967                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3968                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3969                                 if ( si->si_anlist == NULL ) {
3970                                         ch_free( attr_fname );
3971                                         return -1;
3972                                 }
3973                                 si->si_anfile = attr_fname;
3974                         } else {
3975                                 char *str, *s, *next;
3976                                 const char *delimstr = " ,\t";
3977                                 str = ch_strdup( val );
3978                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3979                                                 s != NULL;
3980                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3981                                 {
3982                                         if ( strlen(s) == 1 && *s == '*' ) {
3983                                                 si->si_allattrs = 1;
3984                                                 val[ s - str ] = delimstr[0];
3985                                         }
3986                                         if ( strlen(s) == 1 && *s == '+' ) {
3987                                                 si->si_allopattrs = 1;
3988                                                 val [ s - str ] = delimstr[0];
3989                                         }
3990                                 }
3991                                 ch_free( str );
3992                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3993                                 if ( si->si_anlist == NULL ) {
3994                                         return -1;
3995                                 }
3996                         }
3997                         si->si_got |= GOT_ATTRS;
3998                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3999                                         STRLENOF( EXATTRSSTR "=" ) ) )
4000                 {
4001                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4002                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4003                                 char *attr_fname;
4004                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4005                                 si->si_exanlist = file2anlist(
4006                                         si->si_exanlist, attr_fname, " ,\t" );
4007                                 if ( si->si_exanlist == NULL ) {
4008                                         ch_free( attr_fname );
4009                                         return -1;
4010                                 }
4011                                 ch_free( attr_fname );
4012                         } else {
4013                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4014                                 if ( si->si_exanlist == NULL ) {
4015                                         return -1;
4016                                 }
4017                         }
4018                         si->si_got |= GOT_EXATTRS;
4019                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4020                                         STRLENOF( TYPESTR "=" ) ) )
4021                 {
4022                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4023                         if ( !strncasecmp( val, "refreshOnly",
4024                                                 STRLENOF("refreshOnly") ) )
4025                         {
4026                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4027                         } else if ( !strncasecmp( val, "refreshAndPersist",
4028                                                 STRLENOF("refreshAndPersist") ) )
4029                         {
4030                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4031                                 si->si_interval = 60;
4032                         } else {
4033                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4034                                         "Error: parse_syncrepl_line: "
4035                                         "unknown sync type \"%s\"", val);
4036                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4037                                 return -1;
4038                         }
4039                         si->si_got |= GOT_TYPE;
4040                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4041                                         STRLENOF( INTERVALSTR "=" ) ) )
4042                 {
4043                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4044                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4045                                 si->si_interval = 0;
4046                         } else if ( strchr( val, ':' ) != NULL ) {
4047                                 char *next, *ptr = val;
4048                                 int dd, hh, mm, ss;
4049
4050                                 dd = strtol( ptr, &next, 10 );
4051                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4052                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4053                                                 "Error: parse_syncrepl_line: "
4054                                                 "invalid interval \"%s\", unable to parse days", val );
4055                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4056                                         return -1;
4057                                 }
4058                                 ptr = next + 1;
4059                                 hh = strtol( ptr, &next, 10 );
4060                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4061                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4062                                                 "Error: parse_syncrepl_line: "
4063                                                 "invalid interval \"%s\", unable to parse hours", val );
4064                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4065                                         return -1;
4066                                 }
4067                                 ptr = next + 1;
4068                                 mm = strtol( ptr, &next, 10 );
4069                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4070                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4071                                                 "Error: parse_syncrepl_line: "
4072                                                 "invalid interval \"%s\", unable to parse minutes", val );
4073                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4074                                         return -1;
4075                                 }
4076                                 ptr = next + 1;
4077                                 ss = strtol( ptr, &next, 10 );
4078                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4079                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4080                                                 "Error: parse_syncrepl_line: "
4081                                                 "invalid interval \"%s\", unable to parse seconds", val );
4082                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4083                                         return -1;
4084                                 }
4085                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4086                         } else {
4087                                 unsigned long   t;
4088
4089                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4090                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4091                                                 "Error: parse_syncrepl_line: "
4092                                                 "invalid interval \"%s\"", val );
4093                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4094                                         return -1;
4095                                 }
4096                                 si->si_interval = (time_t)t;
4097                         }
4098                         if ( si->si_interval < 0 ) {
4099                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4100                                         "Error: parse_syncrepl_line: "
4101                                         "invalid interval \"%ld\"",
4102                                         (long) si->si_interval);
4103                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4104                                 return -1;
4105                         }
4106                         si->si_got |= GOT_INTERVAL;
4107                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4108                                         STRLENOF( RETRYSTR "=" ) ) )
4109                 {
4110                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4111                                 return 1;
4112                         }
4113                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4114                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4115                 {
4116                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4117                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4118                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4119                         {
4120                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4121                                         "invalid manageDSAit value \"%s\".\n",
4122                                         val );
4123                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4124                                 return 1;
4125                         }
4126                         si->si_got |= GOT_MANAGEDSAIT;
4127                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4128                                         STRLENOF( SLIMITSTR "=") ) )
4129                 {
4130                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4131                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4132                                 si->si_slimit = 0;
4133
4134                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4135                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4136                                         "invalid size limit value \"%s\".\n",
4137                                         val );
4138                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4139                                 return 1;
4140                         }
4141                         si->si_got |= GOT_SLIMIT;
4142                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4143                                         STRLENOF( TLIMITSTR "=" ) ) )
4144                 {
4145                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4146                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4147                                 si->si_tlimit = 0;
4148
4149                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4150                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4151                                         "invalid time limit value \"%s\".\n",
4152                                         val );
4153                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4154                                 return 1;
4155                         }
4156                         si->si_got |= GOT_TLIMIT;
4157                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
4158                                         STRLENOF( SYNCDATASTR "=" ) ) )
4159                 {
4160                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
4161                         si->si_syncdata = verb_to_mask( val, datamodes );
4162                         si->si_got |= GOT_SYNCDATA;
4163                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
4164                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4165                                 "Error: parse_syncrepl_line: "
4166                                 "unable to parse \"%s\"\n", c->argv[ i ] );
4167                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4168                         return -1;
4169                 }
4170                 si->si_got |= GOT_BINDCONF;
4171         }
4172
4173         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
4174                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4175                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
4176                         si->si_got & GOT_RID ? "" : " "IDSTR,
4177                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
4178                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
4179                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4180                 return -1;
4181         }
4182
4183         if ( !( si->si_got & GOT_RETRY ) ) {
4184                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
4185                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
4186                 if ( si->si_retryinterval == NULL ) {
4187                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
4188                                 return 1;
4189                         }
4190                 }
4191         }
4192
4193         return 0;
4194 }
4195
4196 static int
4197 add_syncrepl(
4198         ConfigArgs *c )
4199 {
4200         syncinfo_t *si;
4201         int     rc = 0;
4202
4203         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
4204                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
4205                         "operations required for syncrepl", c->be->be_type );
4206                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4207                 return 1;
4208         }
4209         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
4210                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
4211                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
4212                 return 1;
4213         }
4214         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
4215
4216         if ( si == NULL ) {
4217                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
4218                 return 1;
4219         }
4220
4221         si->si_bindconf.sb_tls = SB_TLS_OFF;
4222         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
4223         si->si_schemachecking = 0;
4224         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
4225                 &si->si_filterstr );
4226         si->si_base.bv_val = NULL;
4227         si->si_scope = LDAP_SCOPE_SUBTREE;
4228         si->si_attrsonly = 0;
4229         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4230         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
4231         si->si_attrs = NULL;
4232         si->si_allattrs = 0;
4233         si->si_allopattrs = 0;
4234         si->si_exattrs = NULL;
4235         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4236         si->si_interval = 86400;
4237         si->si_retryinterval = NULL;
4238         si->si_retrynum_init = NULL;
4239         si->si_retrynum = NULL;
4240         si->si_manageDSAit = 0;
4241         si->si_tlimit = 0;
4242         si->si_slimit = 0;
4243
4244         si->si_presentlist = NULL;
4245         LDAP_LIST_INIT( &si->si_nonpresentlist );
4246         ldap_pvt_thread_mutex_init( &si->si_mutex );
4247
4248         rc = parse_syncrepl_line( c, si );
4249
4250         if ( rc == 0 ) {
4251                 /* Must be LDAPv3 because we need controls */
4252                 switch ( si->si_bindconf.sb_version ) {
4253                 case 0:
4254                         /* not explicitly set */
4255                         si->si_bindconf.sb_version = LDAP_VERSION3;
4256                         break;
4257                 case 3:
4258                         /* explicitly set */
4259                         break;
4260                 default:
4261                         Debug( LDAP_DEBUG_ANY,
4262                                 "version %d incompatible with syncrepl\n",
4263                                 si->si_bindconf.sb_version, 0, 0 );
4264                         syncinfo_free( si, 0 );
4265                         return 1;
4266                 }
4267
4268                 si->si_be = c->be;
4269                 if ( slapMode & SLAP_SERVER_MODE ) {
4270                         Listener **l = slapd_get_listeners();
4271                         int isMe = 0;
4272
4273                         /* check if URL points to current server. If so, ignore
4274                          * this configuration. We require an exact match. Just
4275                          * in case they really want to do this, they can vary
4276                          * the case of the URL to allow it.
4277                          */
4278                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
4279                                 int i;
4280                                 for ( i=0; l[i]; i++ ) {
4281                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
4282                                                 isMe = 1;
4283                                                 break;
4284                                         }
4285                                 }
4286                         }
4287
4288                         if ( !isMe ) {
4289                                 init_syncrepl( si );
4290                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4291                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
4292                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
4293                                         si->si_ridtxt );
4294                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4295                                 if ( si->si_re )
4296                                         rc = config_sync_shadow( c ) ? -1 : 0;
4297                                 else
4298                                         rc = -1;
4299                         }
4300                 } else {
4301                         /* mirrormode still needs to see this flag in tool mode */
4302                         rc = config_sync_shadow( c ) ? -1 : 0;
4303                 }
4304         }
4305
4306 #ifdef HAVE_TLS
4307         /* Use main slapd defaults */
4308         bindconf_tls_defaults( &si->si_bindconf );
4309 #endif
4310         if ( rc < 0 ) {
4311                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
4312                 syncinfo_free( si, 0 );
4313                 return 1;
4314         } else {
4315                 Debug( LDAP_DEBUG_CONFIG,
4316                         "Config: ** successfully added syncrepl \"%s\"\n",
4317                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
4318                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
4319                 if ( c->be->be_syncinfo ) {
4320                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
4321                 } else {
4322                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
4323                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
4324                 }
4325                 si->si_next = c->be->be_syncinfo;
4326                 c->be->be_syncinfo = si;
4327                 return 0;
4328         }
4329 }
4330
4331 static void
4332 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
4333 {
4334         struct berval bc, uri;
4335         char buf[BUFSIZ*2], *ptr;
4336         ber_len_t len;
4337         int i;
4338 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
4339
4340         BER_BVZERO( bv );
4341
4342         /* temporarily inhibit bindconf from printing URI */
4343         uri = si->si_bindconf.sb_uri;
4344         BER_BVZERO( &si->si_bindconf.sb_uri );
4345         si->si_bindconf.sb_version = 0;
4346         bindconf_unparse( &si->si_bindconf, &bc );
4347         si->si_bindconf.sb_uri = uri;
4348         si->si_bindconf.sb_version = LDAP_VERSION3;
4349
4350         ptr = buf;
4351         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
4352         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
4353                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
4354         if ( len >= sizeof( buf ) ) return;
4355         ptr += len;
4356         if ( !BER_BVISNULL( &bc ) ) {
4357                 if ( WHATSLEFT <= bc.bv_len ) {
4358                         free( bc.bv_val );
4359                         return;
4360                 }
4361                 ptr = lutil_strcopy( ptr, bc.bv_val );
4362                 free( bc.bv_val );
4363         }
4364         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
4365                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
4366                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
4367                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
4368                 *ptr++ = '"';
4369         }
4370         if ( !BER_BVISNULL( &si->si_base ) ) {
4371                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
4372                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
4373                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
4374                 *ptr++ = '"';
4375         }
4376         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
4377                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
4378                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
4379                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
4380                 *ptr++ = '"';
4381         }
4382         if ( !BER_BVISNULL( &si->si_logbase ) ) {
4383                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
4384                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
4385                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
4386                 *ptr++ = '"';
4387         }
4388         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
4389                 if ( si->si_scope == scopes[i].val ) {
4390                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
4391                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
4392                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
4393                         break;
4394                 }
4395         }
4396         if ( si->si_attrsonly ) {
4397                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4398                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
4399         }
4400         if ( si->si_anfile ) {
4401                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
4402                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
4403                 ptr = lutil_strcopy( ptr, si->si_anfile );
4404                 *ptr++ = '"';
4405         } else if ( si->si_allattrs || si->si_allopattrs ||
4406                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
4407         {
4408                 char *old;
4409
4410                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
4411                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
4412                 old = ptr;
4413                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
4414                 if ( ptr == NULL ) return;
4415                 if ( si->si_allattrs ) {
4416                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
4417                         if ( old != ptr ) *ptr++ = ',';
4418                         *ptr++ = '*';
4419                 }
4420                 if ( si->si_allopattrs ) {
4421                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
4422                         if ( old != ptr ) *ptr++ = ',';
4423                         *ptr++ = '+';
4424                 }
4425                 *ptr++ = '"';
4426         }
4427         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
4428                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
4429                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
4430                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4431                 if ( ptr == NULL ) return;
4432         }
4433         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4434         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4435         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4436
4437         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4438         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4439         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4440                 "refreshAndPersist" : "refreshOnly" );
4441
4442         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4443                 int dd, hh, mm, ss;
4444
4445                 dd = si->si_interval;
4446                 ss = dd % 60;
4447                 dd /= 60;
4448                 mm = dd % 60;
4449                 dd /= 60;
4450                 hh = dd % 24;
4451                 dd /= 24;
4452                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
4453                         INTERVALSTR, dd, hh, mm, ss );
4454                 if ( len >= WHATSLEFT ) return;
4455                 ptr += len;
4456         }
4457
4458         if ( si->si_got & GOT_RETRY ) {
4459                 const char *space = "";
4460                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4461                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4462                 for (i=0; si->si_retryinterval[i]; i++) {
4463                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
4464                                 (long) si->si_retryinterval[i] );
4465                         space = " ";
4466                         if ( WHATSLEFT - 1 <= len ) return;
4467                         ptr += len;
4468                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4469                                 *ptr++ = '+';
4470                         else {
4471                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4472                                 if ( WHATSLEFT <= len ) return;
4473                                 ptr += len;
4474                         }
4475                 }
4476                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4477                 *ptr++ = '"';
4478         } else {
4479                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
4480         }
4481
4482         if ( si->si_slimit ) {
4483                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
4484                 if ( WHATSLEFT <= len ) return;
4485                 ptr += len;
4486         }
4487
4488         if ( si->si_tlimit ) {
4489                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
4490                 if ( WHATSLEFT <= len ) return;
4491                 ptr += len;
4492         }
4493
4494         if ( si->si_syncdata ) {
4495                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4496                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4497                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4498                         ptr = lutil_strcopy( ptr, bc.bv_val );
4499                 }
4500         }
4501         bc.bv_len = ptr - buf;
4502         bc.bv_val = buf;
4503         ber_dupbv( bv, &bc );
4504 }
4505
4506 int
4507 syncrepl_config( ConfigArgs *c )
4508 {
4509         if (c->op == SLAP_CONFIG_EMIT) {
4510                 if ( c->be->be_syncinfo ) {
4511                         struct berval bv;
4512                         syncinfo_t *si;
4513
4514                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4515                                 syncrepl_unparse( si, &bv );
4516                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4517                         }
4518                         return 0;
4519                 }
4520                 return 1;
4521         } else if ( c->op == LDAP_MOD_DELETE ) {
4522                 cookie_state *cs = NULL;
4523                 if ( c->be->be_syncinfo ) {
4524                         syncinfo_t *si, **sip;
4525                         int i;
4526
4527                         cs = c->be->be_syncinfo->si_cookieState;
4528                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4529                                 si = *sip;
4530                                 if ( c->valx == -1 || i == c->valx ) {
4531                                         int isrunning = 0;
4532                                         *sip = si->si_next;
4533                                         /* If the task is currently active, we have to leave
4534                                          * it running. It will exit on its own. This will only
4535                                          * happen when running on the cn=config DB.
4536                                          */
4537                                         if ( si->si_re ) {
4538                                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4539                                                 isrunning = ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re );
4540                                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4541                                         }
4542                                         if ( si->si_re && isrunning ) {
4543                                                 si->si_ctype = 0;
4544                                         } else {
4545                                                 syncinfo_free( si, 0 );
4546                                         }
4547                                         if ( i == c->valx )
4548                                                 break;
4549                                 } else {
4550                                         sip = &si->si_next;
4551                                 }
4552                         }
4553                 }
4554                 if ( !c->be->be_syncinfo ) {
4555                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
4556                         if ( cs ) {
4557                                 ber_bvarray_free( cs->cs_vals );
4558                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4559                                 ch_free( cs );
4560                         }
4561                 }
4562                 return 0;
4563         }
4564         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4565                 Debug(LDAP_DEBUG_ANY, "%s: "
4566                         "syncrepl: database already shadowed.\n",
4567                         c->log, 0, 0);
4568                 return(1);
4569         } else {
4570                 return add_syncrepl( c );
4571         }
4572 }