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 2003-2011 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 #ifdef ENABLE_REWRITE
  35 #include "rewrite.h"
  36 #define SUFFIXM_CTX     "<suffix massage>"
  37 #endif
  38
  39 struct nonpresent_entry {
  40         struct berval *npe_name;
  41         struct berval *npe_nname;
  42         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  43 };
  44
  45 typedef struct cookie_state {
  46         ldap_pvt_thread_mutex_t cs_mutex;
  47         int     cs_num;
  48         int cs_age;
  49         int cs_ref;
  50         struct berval *cs_vals;
  51         int *cs_sids;
  52
  53         /* pending changes, not yet committed */
  54         ldap_pvt_thread_mutex_t cs_pmutex;
  55         int     cs_pnum;
  56         struct berval *cs_pvals;
  57         int *cs_psids;
  58 } cookie_state;
  59
  60 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  61 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  62 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  63
  64 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  65 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  66
  67 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  68 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  69 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  70 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  71
  72 typedef struct syncinfo_s {
  73         struct syncinfo_s       *si_next;
  74         BackendDB               *si_be;
  75         BackendDB               *si_wbe;
  76         struct re_s             *si_re;
  77         int                     si_rid;
  78         char                    si_ridtxt[ STRLENOF("rid=999") + 1 ];
  79         slap_bindconf           si_bindconf;
  80         struct berval           si_base;
  81         struct berval           si_logbase;
  82         struct berval           si_filterstr;
  83         Filter                  *si_filter;
  84         struct berval           si_logfilterstr;
  85         struct berval           si_contextdn;
  86         int                     si_scope;
  87         int                     si_attrsonly;
  88         char                    *si_anfile;
  89         AttributeName           *si_anlist;
  90         AttributeName           *si_exanlist;
  91         char                    **si_attrs;
  92         char                    **si_exattrs;
  93         int                     si_allattrs;
  94         int                     si_allopattrs;
  95         int                     si_schemachecking;
  96         int                     si_type;        /* the active type */
  97         int                     si_ctype;       /* the configured type */
  98         time_t                  si_interval;
  99         time_t                  *si_retryinterval;
 100         int                     *si_retrynum_init;
 101         int                     *si_retrynum;
 102         struct sync_cookie      si_syncCookie;
 103         cookie_state            *si_cookieState;
 104         int                     si_cookieAge;
 105         int                     si_manageDSAit;
 106         int                     si_slimit;
 107         int                     si_tlimit;
 108         int                     si_refreshDelete;
 109         int                     si_refreshPresent;
 110         int                     si_refreshDone;
 111         int                     si_syncdata;
 112         int                     si_logstate;
 113         int                     si_got;
 114         int                     si_strict_refresh;      /* stop listening during fallback refresh */
 115         ber_int_t       si_msgid;
 116         Avlnode                 *si_presentlist;
 117         LDAP                    *si_ld;
 118         Connection              *si_conn;
 119         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 120 #ifdef ENABLE_REWRITE
 121         struct rewrite_info *si_rewrite;
 122         struct berval   si_suffixm;
 123 #endif
 124         ldap_pvt_thread_mutex_t si_mutex;
 125 } syncinfo_t;
 126
 127 static int syncuuid_cmp( const void *, const void * );
 128 static int avl_presentlist_insert( syncinfo_t* si, struct berval *syncUUID );
 129 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct sync_cookie *, int );
 130 static int syncrepl_message_to_op(
 131                                         syncinfo_t *, Operation *, LDAPMessage * );
 132 static int syncrepl_message_to_entry(
 133                                         syncinfo_t *, Operation *, LDAPMessage *,
 134                                         Modifications **, Entry **, int );
 135 static int syncrepl_entry(
 136                                         syncinfo_t *, Operation*, Entry*,
 137                                         Modifications**,int, struct berval*,
 138                                         struct berval *cookieCSN );
 139 static int syncrepl_updateCookie(
 140                                         syncinfo_t *, Operation *,
 141                                         struct sync_cookie * );
 142 static struct berval * slap_uuidstr_from_normalized(
 143                                         struct berval *, struct berval *, void * );
 144 static int syncrepl_add_glue_ancestors(
 145         Operation* op, Entry *e );
 146
 147 /* delta-mmr overlay handler */
 148 static int syncrepl_op_modify( Operation *op, SlapReply *rs );
 149
 150 /* callback functions */
 151 static int dn_callback( Operation *, SlapReply * );
 152 static int nonpresent_callback( Operation *, SlapReply * );
 153 static int null_callback( Operation *, SlapReply * );
 154
 155 static AttributeDescription *sync_descs[4];
 156
 157 /* delta-mmr */
 158 static AttributeDescription *ad_reqMod, *ad_reqDN;
 159
 160 typedef struct logschema {
 161         struct berval ls_dn;
 162         struct berval ls_req;
 163         struct berval ls_mod;
 164         struct berval ls_newRdn;
 165         struct berval ls_delRdn;
 166         struct berval ls_newSup;
 167 } logschema;
 168
 169 static logschema changelog_sc = {
 170         BER_BVC("targetDN"),
 171         BER_BVC("changeType"),
 172         BER_BVC("changes"),
 173         BER_BVC("newRDN"),
 174         BER_BVC("deleteOldRDN"),
 175         BER_BVC("newSuperior")
 176 };
 177
 178 static logschema accesslog_sc = {
 179         BER_BVC("reqDN"),
 180         BER_BVC("reqType"),
 181         BER_BVC("reqMod"),
 182         BER_BVC("reqNewRDN"),
 183         BER_BVC("reqDeleteOldRDN"),
 184         BER_BVC("reqNewSuperior")
 185 };
 186
 187 static const char *
 188 syncrepl_state2str( int state )
 189 {
 190         switch ( state ) {
 191         case LDAP_SYNC_PRESENT:
 192                 return "PRESENT";
 193
 194         case LDAP_SYNC_ADD:
 195                 return "ADD";
 196
 197         case LDAP_SYNC_MODIFY:
 198                 return "MODIFY";
 199
 200         case LDAP_SYNC_DELETE:
 201                 return "DELETE";
 202         }
 203
 204         return "UNKNOWN";
 205 }
 206
 207 static slap_overinst syncrepl_ov;
 208
 209 static void
 210 init_syncrepl(syncinfo_t *si)
 211 {
 212         int i, j, k, l, n;
 213         char **attrs, **exattrs;
 214
 215         if ( !syncrepl_ov.on_bi.bi_type ) {
 216                 syncrepl_ov.on_bi.bi_type = "syncrepl";
 217                 syncrepl_ov.on_bi.bi_op_modify = syncrepl_op_modify;
 218                 overlay_register( &syncrepl_ov );
 219         }
 220
 221         /* delta-MMR needs the overlay, nothing else does.
 222          * This must happen before accesslog overlay is configured.
 223          */
 224         if ( si->si_syncdata &&
 225                 !overlay_is_inst( si->si_be, syncrepl_ov.on_bi.bi_type )) {
 226                 overlay_config( si->si_be, syncrepl_ov.on_bi.bi_type, -1, NULL, NULL );
 227                 if ( !ad_reqMod ) {
 228                         const char *text;
 229                         logschema *ls = &accesslog_sc;
 230
 231                         slap_bv2ad( &ls->ls_mod, &ad_reqMod, &text );
 232                         slap_bv2ad( &ls->ls_dn, &ad_reqDN, &text );
 233                 }
 234         }
 235
 236         if ( !sync_descs[0] ) {
 237                 sync_descs[0] = slap_schema.si_ad_objectClass;
 238                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 239                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 240                 sync_descs[3] = NULL;
 241         }
 242
 243         if ( si->si_allattrs && si->si_allopattrs )
 244                 attrs = NULL;
 245         else
 246                 attrs = anlist2attrs( si->si_anlist );
 247
 248         if ( attrs ) {
 249                 if ( si->si_allattrs ) {
 250                         i = 0;
 251                         while ( attrs[i] ) {
 252                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 253                                         for ( j = i; attrs[j] != NULL; j++ ) {
 254                                                 if ( j == i )
 255                                                         ch_free( attrs[i] );
 256                                                 attrs[j] = attrs[j+1];
 257                                         }
 258                                 } else {
 259                                         i++;
 260                                 }
 261                         }
 262                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 263                         attrs[i] = ch_strdup("*");
 264                         attrs[i + 1] = NULL;
 265
 266                 } else if ( si->si_allopattrs ) {
 267                         i = 0;
 268                         while ( attrs[i] ) {
 269                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 270                                         for ( j = i; attrs[j] != NULL; j++ ) {
 271                                                 if ( j == i )
 272                                                         ch_free( attrs[i] );
 273                                                 attrs[j] = attrs[j+1];
 274                                         }
 275                                 } else {
 276                                         i++;
 277                                 }
 278                         }
 279                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 280                         attrs[i] = ch_strdup("+");
 281                         attrs[i + 1] = NULL;
 282                 }
 283
 284                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 285                         j = 0;
 286                         while ( attrs[j] ) {
 287                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 288                                         for ( k = j; attrs[k] != NULL; k++ ) {
 289                                                 if ( k == j )
 290                                                         ch_free( attrs[k] );
 291                                                 attrs[k] = attrs[k+1];
 292                                         }
 293                                 } else {
 294                                         j++;
 295                                 }
 296                         }
 297                 }
 298
 299                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 300
 301                 if ( si->si_allopattrs ) {
 302                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 303                 } else {
 304                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 305                 }
 306
 307                 /* Add Attributes */
 308                 if ( si->si_allopattrs ) {
 309                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 310                 } else {
 311                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 312                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 313                         }
 314                 }
 315                 attrs[ n ] = NULL;
 316
 317         } else {
 318
 319                 i = 0;
 320                 if ( si->si_allattrs == si->si_allopattrs ) {
 321                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 322                         attrs[i++] = ch_strdup( "*" );
 323                         attrs[i++] = ch_strdup( "+" );
 324                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 325                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 326                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 327                         attrs[i++] = ch_strdup( "*" );
 328                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 329                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 330                         }
 331                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 332                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 333                         attrs[i++] = ch_strdup( "+" );
 334                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 335                 }
 336                 attrs[i] = NULL;
 337         }
 338
 339         si->si_attrs = attrs;
 340
 341         exattrs = anlist2attrs( si->si_exanlist );
 342
 343         if ( exattrs ) {
 344                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 345
 346                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 347                         j = 0;
 348                         while ( exattrs[j] != NULL ) {
 349                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 350                                         ch_free( exattrs[j] );
 351                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 352                                                 exattrs[k] = exattrs[k+1];
 353                                         }
 354                                 } else {
 355                                         j++;
 356                                 }
 357                         }
 358                 }
 359
 360                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 361                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 362                                 ObjectClass     *oc;
 363                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 364                                         k = 0;
 365                                         while ( oc->soc_required[k] ) {
 366                                                 if ( !strcmp( exattrs[i],
 367                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 368                                                         ch_free( exattrs[i] );
 369                                                         for ( l = i; exattrs[l]; l++ ) {
 370                                                                 exattrs[l] = exattrs[l+1];
 371                                                         }
 372                                                 } else {
 373                                                         k++;
 374                                                 }
 375                                         }
 376                                 }
 377                         }
 378                 }
 379
 380                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 381
 382                 if ( i != n )
 383                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 384         }
 385
 386         si->si_exattrs = exattrs;
 387 }
 388
 389 static int
 390 ldap_sync_search(
 391         syncinfo_t *si,
 392         void *ctx )
 393 {
 394         BerElementBuffer berbuf;
 395         BerElement *ber = (BerElement *)&berbuf;
 396         LDAPControl c[3], *ctrls[4];
 397         int rc;
 398         int rhint;
 399         char *base;
 400         char **attrs, *lattrs[8];
 401         char *filter;
 402         int attrsonly;
 403         int scope;
 404
 405         /* setup LDAP SYNC control */
 406         ber_init2( ber, NULL, LBER_USE_DER );
 407         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 408
 409         /* If we're using a log but we have no state, then fallback to
 410          * normal mode for a full refresh.
 411          */
 412         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 413                 si->si_logstate = SYNCLOG_FALLBACK;
 414         }
 415
 416         /* Use the log parameters if we're in log mode */
 417         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 418                 logschema *ls;
 419                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 420                         ls = &accesslog_sc;
 421                 else
 422                         ls = &changelog_sc;
 423                 lattrs[0] = ls->ls_dn.bv_val;
 424                 lattrs[1] = ls->ls_req.bv_val;
 425                 lattrs[2] = ls->ls_mod.bv_val;
 426                 lattrs[3] = ls->ls_newRdn.bv_val;
 427                 lattrs[4] = ls->ls_delRdn.bv_val;
 428                 lattrs[5] = ls->ls_newSup.bv_val;
 429                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 430                 lattrs[7] = NULL;
 431
 432                 rhint = 0;
 433                 base = si->si_logbase.bv_val;
 434                 filter = si->si_logfilterstr.bv_val;
 435                 attrs = lattrs;
 436                 attrsonly = 0;
 437                 scope = LDAP_SCOPE_SUBTREE;
 438         } else {
 439                 rhint = 1;
 440                 base = si->si_base.bv_val;
 441                 filter = si->si_filterstr.bv_val;
 442                 attrs = si->si_attrs;
 443                 attrsonly = si->si_attrsonly;
 444                 scope = si->si_scope;
 445         }
 446         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 447                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 448         } else {
 449                 si->si_type = si->si_ctype;
 450         }
 451
 452         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 453         {
 454                 ber_printf( ber, "{eOb}",
 455                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 456         } else {
 457                 ber_printf( ber, "{eb}",
 458                         abs(si->si_type), rhint );
 459         }
 460
 461         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == -1 ) {
 462                 ber_free_buf( ber );
 463                 return rc;
 464         }
 465
 466         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 467         c[0].ldctl_iscritical = si->si_type < 0;
 468         ctrls[0] = &c[0];
 469
 470         c[1].ldctl_oid = LDAP_CONTROL_MANAGEDSAIT;
 471         BER_BVZERO( &c[1].ldctl_value );
 472         c[1].ldctl_iscritical = 1;
 473         ctrls[1] = &c[1];
 474
 475         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 476                 c[2].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 477                 c[2].ldctl_value = si->si_bindconf.sb_authzId;
 478                 c[2].ldctl_iscritical = 1;
 479                 ctrls[2] = &c[2];
 480                 ctrls[3] = NULL;
 481         } else {
 482                 ctrls[2] = NULL;
 483         }
 484
 485         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 486                 ctrls, NULL, NULL, si->si_slimit, &si->si_msgid );
 487         ber_free_buf( ber );
 488         return rc;
 489 }
 490
 491 static int
 492 check_syncprov(
 493         Operation *op,
 494         syncinfo_t *si )
 495 {
 496         AttributeName at[2];
 497         Attribute a = {0};
 498         Entry e = {0};
 499         SlapReply rs = {REP_SEARCH};
 500         int i, j, changed = 0;
 501
 502         /* Look for contextCSN from syncprov overlay. If
 503          * there's no overlay, this will be a no-op. That means
 504          * this is a pure consumer, so local changes will not be
 505          * allowed, and all changes will already be reflected in
 506          * the cookieState.
 507          */
 508         a.a_desc = slap_schema.si_ad_contextCSN;
 509         e.e_attrs = &a;
 510         e.e_name = si->si_contextdn;
 511         e.e_nname = si->si_contextdn;
 512         at[0].an_name = a.a_desc->ad_cname;
 513         at[0].an_desc = a.a_desc;
 514         BER_BVZERO( &at[1].an_name );
 515         rs.sr_entry = &e;
 516         rs.sr_flags = REP_ENTRY_MODIFIABLE;
 517         rs.sr_attrs = at;
 518         op->o_req_dn = e.e_name;
 519         op->o_req_ndn = e.e_nname;
 520
 521         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 522         i = backend_operational( op, &rs );
 523         if ( i == LDAP_SUCCESS && a.a_nvals ) {
 524                 int num = a.a_numvals;
 525                 /* check for differences */
 526                 if ( num != si->si_cookieState->cs_num ) {
 527                         changed = 1;
 528                 } else {
 529                         for ( i=0; i<num; i++ ) {
 530                                 if ( ber_bvcmp( &a.a_nvals[i],
 531                                         &si->si_cookieState->cs_vals[i] )) {
 532                                         changed = 1;
 533                                         break;
 534                                 }
 535                         }
 536                 }
 537                 if ( changed ) {
 538                         ber_bvarray_free( si->si_cookieState->cs_vals );
 539                         ch_free( si->si_cookieState->cs_sids );
 540                         si->si_cookieState->cs_num = num;
 541                         si->si_cookieState->cs_vals = a.a_nvals;
 542                         si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_nvals,
 543                                 num, NULL );
 544                         si->si_cookieState->cs_age++;
 545                 } else {
 546                         ber_bvarray_free( a.a_nvals );
 547                 }
 548                 ber_bvarray_free( a.a_vals );
 549         }
 550         /* See if the cookieState has changed due to anything outside
 551          * this particular consumer. That includes other consumers in
 552          * the same context, or local changes detected above.
 553          */
 554         if ( si->si_cookieState->cs_num > 0 && si->si_cookieAge !=
 555                 si->si_cookieState->cs_age ) {
 556                 if ( !si->si_syncCookie.numcsns ) {
 557                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 558                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 559                                 si->si_cookieState->cs_vals, NULL );
 560                         changed = 1;
 561                 } else {
 562                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 563                                 /* bogus, just dup everything */
 564                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 565                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 566                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 567                                                 si->si_cookieState->cs_vals, NULL );
 568                                         changed = 1;
 569                                         break;
 570                                 }
 571                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 572                                         if ( si->si_syncCookie.sids[i] !=
 573                                                 si->si_cookieState->cs_sids[j] )
 574                                                 continue;
 575                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 576                                                 &si->si_cookieState->cs_vals[j] ))
 577                                                 break;
 578                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 579                                                 &si->si_cookieState->cs_vals[j] );
 580                                         changed = 1;
 581                                         break;
 582                                 }
 583                         }
 584                 }
 585         }
 586         if ( changed ) {
 587                 si->si_cookieAge = si->si_cookieState->cs_age;
 588                 ch_free( si->si_syncCookie.octet_str.bv_val );
 589                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 590                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 591                         si->si_syncCookie.sid );
 592                 slap_parse_sync_cookie( &si->si_syncCookie, NULL );
 593         }
 594         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 595         return changed;
 596 }
 597
 598 static int
 599 do_syncrep1(
 600         Operation *op,
 601         syncinfo_t *si )
 602 {
 603         int     rc;
 604         int cmdline_cookie_found = 0;
 605
 606         struct sync_cookie      *sc = NULL;
 607 #ifdef HAVE_TLS
 608         void    *ssl;
 609 #endif
 610
 611         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 612         if ( rc != LDAP_SUCCESS ) {
 613                 goto done;
 614         }
 615         op->o_protocol = LDAP_VERSION3;
 616
 617         /* Set SSF to strongest of TLS, SASL SSFs */
 618         op->o_sasl_ssf = 0;
 619         op->o_tls_ssf = 0;
 620         op->o_transport_ssf = 0;
 621 #ifdef HAVE_TLS
 622         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 623                 == LDAP_SUCCESS && ssl != NULL )
 624         {
 625                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 626         }
 627 #endif /* HAVE_TLS */
 628         {
 629                 ber_len_t ssf; /* ITS#5403, 3864 LDAP_OPT_X_SASL_SSF probably ought
 630                                                   to use sasl_ssf_t but currently uses ber_len_t */
 631                 if ( ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &ssf )
 632                         == LDAP_SUCCESS )
 633                         op->o_sasl_ssf = ssf;
 634         }
 635         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 636                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 637
 638         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 639
 640         rc = LDAP_DEREF_NEVER;  /* actually could allow DEREF_FINDING */
 641         ldap_set_option( si->si_ld, LDAP_OPT_DEREF, &rc );
 642
 643         ldap_set_option( si->si_ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF );
 644
 645         si->si_syncCookie.rid = si->si_rid;
 646
 647         /* whenever there are multiple data sources possible, advertise sid */
 648         si->si_syncCookie.sid = ( SLAP_MULTIMASTER( si->si_be ) || si->si_be != si->si_wbe ) ?
 649                 slap_serverID : -1;
 650
 651         /* We've just started up, or the remote server hasn't sent us
 652          * any meaningful state.
 653          */
 654         if ( !si->si_syncCookie.ctxcsn ) {
 655                 int i;
 656
 657                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 658                         if ( si->si_rid == sc->rid ) {
 659                                 cmdline_cookie_found = 1;
 660                                 break;
 661                         }
 662                 }
 663
 664                 if ( cmdline_cookie_found ) {
 665                         /* cookie is supplied in the command line */
 666
 667                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 668
 669                         /* ctxcsn wasn't parsed yet, do it now */
 670                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 671                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 672                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 673                         slap_sync_cookie_free( sc, 1 );
 674                 } else {
 675                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 676                         if ( !si->si_cookieState->cs_num ) {
 677                                 /* get contextCSN shadow replica from database */
 678                                 BerVarray csn = NULL;
 679                                 void *ctx = op->o_tmpmemctx;
 680
 681                                 op->o_req_ndn = si->si_contextdn;
 682                                 op->o_req_dn = op->o_req_ndn;
 683
 684                                 /* try to read stored contextCSN */
 685                                 op->o_tmpmemctx = NULL;
 686                                 backend_attribute( op, NULL, &op->o_req_ndn,
 687                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 688                                 op->o_tmpmemctx = ctx;
 689                                 if ( csn ) {
 690                                         si->si_cookieState->cs_vals = csn;
 691                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 692                                         si->si_cookieState->cs_num = i;
 693                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 694                                 }
 695                         }
 696                         if ( si->si_cookieState->cs_num ) {
 697                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 698                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 699                                         si->si_cookieState->cs_vals, NULL )) {
 700                                         rc = LDAP_NO_MEMORY;
 701                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 702                                         goto done;
 703                                 }
 704                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 705                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 706                                         sizeof(int) );
 707                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 708                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 709                         }
 710                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 711                 }
 712
 713                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 714                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 715                         si->si_syncCookie.sid );
 716         } else {
 717                 /* ITS#6367: recreate the cookie so it has our SID, not our peer's */
 718                 ch_free( si->si_syncCookie.octet_str.bv_val );
 719                 BER_BVZERO( &si->si_syncCookie.octet_str );
 720                 /* Look for contextCSN from syncprov overlay. */
 721                 check_syncprov( op, si );
 722                 if ( BER_BVISNULL( &si->si_syncCookie.octet_str ))
 723                         slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 724                                 si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 725                                 si->si_syncCookie.sid );
 726         }
 727
 728         si->si_refreshDone = 0;
 729
 730         rc = ldap_sync_search( si, op->o_tmpmemctx );
 731
 732         if( rc != LDAP_SUCCESS ) {
 733                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 734                         "ldap_search_ext: %s (%d)\n",
 735                         si->si_ridtxt, ldap_err2string( rc ), rc );
 736         }
 737
 738 done:
 739         if ( rc ) {
 740                 if ( si->si_ld ) {
 741                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 742                         si->si_ld = NULL;
 743                 }
 744         }
 745
 746         return rc;
 747 }
 748
 749 static int
 750 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 751 {
 752         int i, j, match = 0;
 753         const char *text;
 754
 755         *which = 0;
 756
 757         if ( sc1->numcsns < sc2->numcsns ) {
 758                 *which = sc1->numcsns;
 759                 return -1;
 760         }
 761
 762         for (j=0; j<sc2->numcsns; j++) {
 763                 for (i=0; i<sc1->numcsns; i++) {
 764                         if ( sc1->sids[i] != sc2->sids[j] )
 765                                 continue;
 766                         value_match( &match, slap_schema.si_ad_entryCSN,
 767                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 768                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 769                                 &sc1->ctxcsn[i], &sc2->ctxcsn[j], &text );
 770                         if ( match < 0 ) {
 771                                 *which = j;
 772                                 return match;
 773                         }
 774                         break;
 775                 }
 776                 if ( i == sc1->numcsns ) {
 777                         /* sc2 has a sid sc1 lacks */
 778                         *which = j;
 779                         return -1;
 780                 }
 781         }
 782         return match;
 783 }
 784
 785 #define SYNC_PAUSED     -3
 786
 787 static int
 788 do_syncrep2(
 789         Operation *op,
 790         syncinfo_t *si )
 791 {
 792         BerElementBuffer berbuf;
 793         BerElement      *ber = (BerElement *)&berbuf;
 794
 795         LDAPMessage     *msg = NULL;
 796
 797         struct sync_cookie      syncCookie = { NULL };
 798         struct sync_cookie      syncCookie_req = { NULL };
 799
 800         int             rc,
 801                         err = LDAP_SUCCESS;
 802
 803         Modifications   *modlist = NULL;
 804
 805         int                             m;
 806
 807         struct timeval *tout_p = NULL;
 808         struct timeval tout = { 0, 0 };
 809
 810         int             refreshDeletes = 0;
 811         char empty[6] = "empty";
 812
 813         if ( slapd_shutdown ) {
 814                 rc = -2;
 815                 goto done;
 816         }
 817
 818         ber_init2( ber, NULL, LBER_USE_DER );
 819         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 820
 821         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 822
 823         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 824
 825         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 826                 tout_p = &tout;
 827         } else {
 828                 tout_p = NULL;
 829         }
 830
 831         while ( ( rc = ldap_result( si->si_ld, si->si_msgid, LDAP_MSG_ONE,
 832                 tout_p, &msg ) ) > 0 )
 833         {
 834                 int                             match, punlock, syncstate;
 835                 struct berval   *retdata, syncUUID, cookie = BER_BVNULL;
 836                 char                    *retoid;
 837                 LDAPControl             **rctrls = NULL, *rctrlp = NULL;
 838                 BerVarray               syncUUIDs;
 839                 ber_len_t               len;
 840                 ber_tag_t               si_tag;
 841                 Entry                   *entry;
 842                 struct berval   bdn;
 843
 844                 if ( slapd_shutdown ) {
 845                         rc = -2;
 846                         goto done;
 847                 }
 848                 switch( ldap_msgtype( msg ) ) {
 849                 case LDAP_RES_SEARCH_ENTRY:
 850                         ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 851                         ldap_get_dn_ber( si->si_ld, msg, NULL, &bdn );
 852                         if (!bdn.bv_len) {
 853                                 bdn.bv_val = empty;
 854                                 bdn.bv_len = sizeof(empty)-1;
 855                         }
 856                         /* we can't work without the control */
 857                         if ( rctrls ) {
 858                                 LDAPControl **next = NULL;
 859                                 /* NOTE: make sure we use the right one;
 860                                  * a better approach would be to run thru
 861                                  * the whole list and take care of all */
 862                                 /* NOTE: since we issue the search request,
 863                                  * we should know what controls to expect,
 864                                  * and there should be none apart from the
 865                                  * sync-related control */
 866                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 867                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 868                                 {
 869                                         bdn.bv_val[bdn.bv_len] = '\0';
 870                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 871                                                 "got search entry with multiple "
 872                                                 "Sync State control (%s)\n", si->si_ridtxt, bdn.bv_val, 0 );
 873                                         ldap_controls_free( rctrls );
 874                                         rc = -1;
 875                                         goto done;
 876                                 }
 877                         }
 878                         if ( rctrlp == NULL ) {
 879                                 bdn.bv_val[bdn.bv_len] = '\0';
 880                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 881                                         "got search entry without "
 882                                         "Sync State control (%s)\n", si->si_ridtxt, bdn.bv_val, 0 );
 883                                 rc = -1;
 884                                 goto done;
 885                         }
 886                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 887                         if ( ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID )
 888                                         == LBER_ERROR ) {
 889                                 bdn.bv_val[bdn.bv_len] = '\0';
 890                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s malformed message (%s)\n",
 891                                         si->si_ridtxt, bdn.bv_val, 0 );
 892                                 ldap_controls_free( rctrls );
 893                                 rc = -1;
 894                                 goto done;
 895                         }
 896                         /* FIXME: what if syncUUID is NULL or empty?
 897                          * (happens with back-sql...) */
 898                         if ( BER_BVISEMPTY( &syncUUID ) ) {
 899                                 bdn.bv_val[bdn.bv_len] = '\0';
 900                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 901                                         "got empty syncUUID with LDAP_SYNC_%s (%s)\n",
 902                                         si->si_ridtxt,
 903                                         syncrepl_state2str( syncstate ), bdn.bv_val );
 904                                 ldap_controls_free( rctrls );
 905                                 rc = -1;
 906                                 goto done;
 907                         }
 908                         punlock = -1;
 909                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 910                                 ber_scanf( ber, /*"{"*/ "m}", &cookie );
 911
 912                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
 913                                         si->si_ridtxt,
 914                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
 915
 916                                 if ( !BER_BVISNULL( &cookie ) ) {
 917                                         ch_free( syncCookie.octet_str.bv_val );
 918                                         ber_dupbv( &syncCookie.octet_str, &cookie );
 919                                 }
 920                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 921                                 {
 922                                         slap_parse_sync_cookie( &syncCookie, NULL );
 923                                         if ( syncCookie.ctxcsn ) {
 924                                                 int i, sid = slap_parse_csn_sid( syncCookie.ctxcsn );
 925                                                 check_syncprov( op, si );
 926                                                 for ( i =0; i<si->si_cookieState->cs_num; i++ ) {
 927                                                         if ( si->si_cookieState->cs_sids[i] == sid ) {
 928                                                                 if ( ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 ) {
 929                                                                         bdn.bv_val[bdn.bv_len] = '\0';
 930                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN too old, ignoring %s (%s)\n",
 931                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, bdn.bv_val );
 932                                                                         ldap_controls_free( rctrls );
 933                                                                         rc = 0;
 934                                                                         goto done;
 935                                                                 }
 936                                                                 break;
 937                                                         }
 938                                                 }
 939                                                 /* check pending CSNs too */
 940                                                 while ( ldap_pvt_thread_mutex_trylock( &si->si_cookieState->cs_pmutex )) {
 941                                                         if ( slapd_shutdown ) {
 942                                                                 rc = -2;
 943                                                                 goto done;
 944                                                         }
 945                                                         if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
 946                                                                 ldap_pvt_thread_yield();
 947                                                 }
 948                                                 for ( i =0; i<si->si_cookieState->cs_pnum; i++ ) {
 949                                                         if ( si->si_cookieState->cs_psids[i] == sid ) {
 950                                                                 if ( ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_pvals[i] ) <= 0 ) {
 951                                                                         bdn.bv_val[bdn.bv_len] = '\0';
 952                                                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s CSN pending, ignoring %s (%s)\n",
 953                                                                                 si->si_ridtxt, syncCookie.ctxcsn->bv_val, bdn.bv_val );
 954                                                                         ldap_controls_free( rctrls );
 955                                                                         rc = 0;
 956                                                                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_pmutex );
 957                                                                         goto done;
 958                                                                 }
 959                                                                 ber_bvreplace( &si->si_cookieState->cs_pvals[i],
 960                                                                         syncCookie.ctxcsn );
 961                                                                 break;
 962                                                         }
 963                                                 }
 964                                                 /* new SID, add it */
 965                                                 if ( i == si->si_cookieState->cs_pnum ) {
 966                                                         value_add( &si->si_cookieState->cs_pvals, syncCookie.ctxcsn );
 967                                                         si->si_cookieState->cs_pnum++;
 968                                                         si->si_cookieState->cs_psids = ch_realloc( si->si_cookieState->cs_psids, si->si_cookieState->cs_pnum * sizeof(int));
 969                                                         si->si_cookieState->cs_psids[i] = sid;
 970                                                 }
 971                                                 assert( punlock < 0 );
 972                                                 punlock = i;
 973                                         }
 974                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
 975                                 }
 976                         }
 977                         rc = 0;
 978                         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 979                                 modlist = NULL;
 980                                 if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 981                                         syncCookie.ctxcsn )
 982                                 {
 983                                         rc = syncrepl_updateCookie( si, op, &syncCookie );
 984                                 } else switch ( rc ) {
 985                                         case LDAP_ALREADY_EXISTS:
 986                                         case LDAP_NO_SUCH_OBJECT:
 987                                         case LDAP_NO_SUCH_ATTRIBUTE:
 988                                         case LDAP_TYPE_OR_VALUE_EXISTS:
 989                                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
 990                                                 si->si_logstate = SYNCLOG_FALLBACK;
 991                                                 ldap_abandon_ext( si->si_ld, si->si_msgid, NULL, NULL );
 992                                                 bdn.bv_val[bdn.bv_len] = '\0';
 993                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s delta-sync lost sync on (%s), switching to REFRESH\n",
 994                                                         si->si_ridtxt, bdn.bv_val, 0 );
 995                                                 if (si->si_strict_refresh) {
 996                                                         slap_suspend_listeners();
 997                                                         connections_drop();
 998                                                 }
 999                                                 break;
1000                                         default:
1001                                                 break;
1002                                 }
1003                         } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
1004                                 &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
1005                         {
1006                                 if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
1007                                         syncstate, &syncUUID, syncCookie.ctxcsn ) ) == LDAP_SUCCESS &&
1008                                         syncCookie.ctxcsn )
1009                                 {
1010                                         rc = syncrepl_updateCookie( si, op, &syncCookie );
1011                                 }
1012                         }
1013                         if ( punlock >= 0 ) {
1014                                 /* on failure, revert pending CSN */
1015                                 if ( rc != LDAP_SUCCESS ) {
1016                                         int i;
1017                                         for ( i = 0; i<si->si_cookieState->cs_num; i++ ) {
1018                                                 if ( si->si_cookieState->cs_sids[i] == si->si_cookieState->cs_psids[punlock] ) {
1019                                                         ber_bvreplace( &si->si_cookieState->cs_pvals[punlock],
1020                                                                 &si->si_cookieState->cs_vals[i] );
1021                                                         break;
1022                                                 }
1023                                         }
1024                                         if ( i == si->si_cookieState->cs_num )
1025                                                 si->si_cookieState->cs_pvals[punlock].bv_val[0] = '\0';
1026                                 }
1027                                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_pmutex );
1028                         }
1029                         ldap_controls_free( rctrls );
1030                         if ( modlist ) {
1031                                 slap_mods_free( modlist, 1 );
1032                         }
1033                         if ( rc )
1034                                 goto done;
1035                         break;
1036
1037                 case LDAP_RES_SEARCH_REFERENCE:
1038                         Debug( LDAP_DEBUG_ANY,
1039                                 "do_syncrep2: %s reference received error\n",
1040                                 si->si_ridtxt, 0, 0 );
1041                         break;
1042
1043                 case LDAP_RES_SEARCH_RESULT:
1044                         Debug( LDAP_DEBUG_SYNC,
1045                                 "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
1046                                 si->si_ridtxt, 0, 0 );
1047                         err = LDAP_OTHER; /* FIXME check parse result properly */
1048                         ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
1049                                 &rctrls, 0 );
1050 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
1051                         if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
1052                                 /* map old result code to registered code */
1053                                 err = LDAP_SYNC_REFRESH_REQUIRED;
1054                         }
1055 #endif
1056                         if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
1057                                 if ( si->si_logstate == SYNCLOG_LOGGING ) {
1058                                         si->si_logstate = SYNCLOG_FALLBACK;
1059                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s delta-sync lost sync, switching to REFRESH\n",
1060                                                 si->si_ridtxt, 0, 0 );
1061                                         if (si->si_strict_refresh) {
1062                                                 slap_suspend_listeners();
1063                                                 connections_drop();
1064                                         }
1065                                 }
1066                                 rc = err;
1067                                 goto done;
1068                         }
1069                         if ( err ) {
1070                                 Debug( LDAP_DEBUG_ANY,
1071                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT (%d) %s\n",
1072                                         si->si_ridtxt, err, ldap_err2string( err ) );
1073                         }
1074                         if ( rctrls ) {
1075                                 LDAPControl **next = NULL;
1076                                 /* NOTE: make sure we use the right one;
1077                                  * a better approach would be to run thru
1078                                  * the whole list and take care of all */
1079                                 /* NOTE: since we issue the search request,
1080                                  * we should know what controls to expect,
1081                                  * and there should be none apart from the
1082                                  * sync-related control */
1083                                 rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_DONE, rctrls, &next );
1084                                 if ( next && ldap_control_find( LDAP_CONTROL_SYNC_DONE, next, NULL ) )
1085                                 {
1086                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1087                                                 "got search result with multiple "
1088                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
1089                                         ldap_controls_free( rctrls );
1090                                         rc = -1;
1091                                         goto done;
1092                                 }
1093                         }
1094                         if ( rctrlp ) {
1095                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
1096
1097                                 ber_scanf( ber, "{" /*"}"*/);
1098                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
1099                                         ber_scanf( ber, "m", &cookie );
1100
1101                                         Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1102                                                 si->si_ridtxt,
1103                                                 BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1104
1105                                         if ( !BER_BVISNULL( &cookie ) ) {
1106                                                 ch_free( syncCookie.octet_str.bv_val );
1107                                                 ber_dupbv( &syncCookie.octet_str, &cookie);
1108                                         }
1109                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1110                                         {
1111                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1112                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1113                                         }
1114                                 }
1115                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
1116                                 {
1117                                         ber_scanf( ber, "b", &refreshDeletes );
1118                                 }
1119                                 ber_scanf( ber, /*"{"*/ "}" );
1120                         }
1121                         if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1122                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1123                                 slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1124                         }
1125                         if ( !syncCookie.ctxcsn ) {
1126                                 match = 1;
1127                         } else if ( !syncCookie_req.ctxcsn ) {
1128                                 match = -1;
1129                                 m = 0;
1130                         } else {
1131                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1132                         }
1133                         if ( rctrls ) {
1134                                 ldap_controls_free( rctrls );
1135                         }
1136                         if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
1137                                 /* FIXME : different error behaviors according to
1138                                  *      1) err code : LDAP_BUSY ...
1139                                  *      2) on err policy : stop service, stop sync, retry
1140                                  */
1141                                 if ( refreshDeletes == 0 && match < 0 &&
1142                                         err == LDAP_SUCCESS &&
1143                                         syncCookie_req.numcsns == syncCookie.numcsns )
1144                                 {
1145                                         syncrepl_del_nonpresent( op, si, NULL,
1146                                                 &syncCookie, m );
1147                                 } else {
1148                                         avl_free( si->si_presentlist, ch_free );
1149                                         si->si_presentlist = NULL;
1150                                 }
1151                         }
1152                         if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
1153                         {
1154                                 rc = syncrepl_updateCookie( si, op, &syncCookie );
1155                         }
1156                         if ( err == LDAP_SUCCESS
1157                                 && si->si_logstate == SYNCLOG_FALLBACK ) {
1158                                 si->si_logstate = SYNCLOG_LOGGING;
1159                                 rc = LDAP_SYNC_REFRESH_REQUIRED;
1160                                 slap_resume_listeners();
1161                         } else {
1162                                 rc = -2;
1163                         }
1164                         goto done;
1165
1166                 case LDAP_RES_INTERMEDIATE:
1167                         retoid = NULL;
1168                         retdata = NULL;
1169                         rc = ldap_parse_intermediate( si->si_ld, msg,
1170                                 &retoid, &retdata, NULL, 0 );
1171                         if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
1172                                 ber_init2( ber, retdata, LBER_USE_DER );
1173
1174                                 switch ( si_tag = ber_peek_tag( ber, &len ) ) {
1175                                 ber_tag_t tag;
1176                                 case LDAP_TAG_SYNC_NEW_COOKIE:
1177                                         Debug( LDAP_DEBUG_SYNC,
1178                                                 "do_syncrep2: %s %s - %s\n",
1179                                                 si->si_ridtxt,
1180                                                 "LDAP_RES_INTERMEDIATE",
1181                                                 "NEW_COOKIE" );
1182                                         ber_scanf( ber, "tm", &tag, &cookie );
1183                                         Debug( LDAP_DEBUG_SYNC,
1184                                                 "do_syncrep2: %s NEW_COOKIE: %s\n",
1185                                                 si->si_ridtxt,
1186                                                 cookie.bv_val, 0);
1187                                         if ( !BER_BVISNULL( &cookie ) ) {
1188                                                 ch_free( syncCookie.octet_str.bv_val );
1189                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
1190                                         }
1191                                         if (!BER_BVISNULL( &syncCookie.octet_str ) ) {
1192                                                 slap_parse_sync_cookie( &syncCookie, NULL );
1193                                                 op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1194                                         }
1195                                         break;
1196                                 case LDAP_TAG_SYNC_REFRESH_DELETE:
1197                                 case LDAP_TAG_SYNC_REFRESH_PRESENT:
1198                                         Debug( LDAP_DEBUG_SYNC,
1199                                                 "do_syncrep2: %s %s - %s\n",
1200                                                 si->si_ridtxt,
1201                                                 "LDAP_RES_INTERMEDIATE",
1202                                                 si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
1203                                                 "REFRESH_PRESENT" : "REFRESH_DELETE" );
1204                                         if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
1205                                                 si->si_refreshDelete = 1;
1206                                         } else {
1207                                                 si->si_refreshPresent = 1;
1208                                         }
1209                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1210                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
1211                                         {
1212                                                 ber_scanf( ber, "m", &cookie );
1213
1214                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1215                                                         si->si_ridtxt,
1216                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1217
1218                                                 if ( !BER_BVISNULL( &cookie ) ) {
1219                                                         ch_free( syncCookie.octet_str.bv_val );
1220                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1221                                                 }
1222                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1223                                                 {
1224                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1225                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1226                                                 }
1227                                         }
1228                                         /* Defaults to TRUE */
1229                                         if ( ber_peek_tag( ber, &len ) ==
1230                                                 LDAP_TAG_REFRESHDONE )
1231                                         {
1232                                                 ber_scanf( ber, "b", &si->si_refreshDone );
1233                                         } else
1234                                         {
1235                                                 si->si_refreshDone = 1;
1236                                         }
1237                                         ber_scanf( ber, /*"{"*/ "}" );
1238                                         break;
1239                                 case LDAP_TAG_SYNC_ID_SET:
1240                                         Debug( LDAP_DEBUG_SYNC,
1241                                                 "do_syncrep2: %s %s - %s\n",
1242                                                 si->si_ridtxt,
1243                                                 "LDAP_RES_INTERMEDIATE",
1244                                                 "SYNC_ID_SET" );
1245                                         ber_scanf( ber, "t{" /*"}"*/, &tag );
1246                                         if ( ber_peek_tag( ber, &len ) ==
1247                                                 LDAP_TAG_SYNC_COOKIE )
1248                                         {
1249                                                 ber_scanf( ber, "m", &cookie );
1250
1251                                                 Debug( LDAP_DEBUG_SYNC, "do_syncrep2: %s cookie=%s\n",
1252                                                         si->si_ridtxt,
1253                                                         BER_BVISNULL( &cookie ) ? "" : cookie.bv_val, 0 );
1254
1255                                                 if ( !BER_BVISNULL( &cookie ) ) {
1256                                                         ch_free( syncCookie.octet_str.bv_val );
1257                                                         ber_dupbv( &syncCookie.octet_str, &cookie );
1258                                                 }
1259                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
1260                                                 {
1261                                                         slap_parse_sync_cookie( &syncCookie, NULL );
1262                                                         op->o_controls[slap_cids.sc_LDAPsync] = &syncCookie;
1263                                                         compare_csns( &syncCookie_req, &syncCookie, &m );
1264                                                 }
1265                                         }
1266                                         if ( ber_peek_tag( ber, &len ) ==
1267                                                 LDAP_TAG_REFRESHDELETES )
1268                                         {
1269                                                 ber_scanf( ber, "b", &refreshDeletes );
1270                                         }
1271                                         syncUUIDs = NULL;
1272                                         ber_scanf( ber, "[W]", &syncUUIDs );
1273                                         ber_scanf( ber, /*"{"*/ "}" );
1274                                         if ( refreshDeletes ) {
1275                                                 syncrepl_del_nonpresent( op, si, syncUUIDs,
1276                                                         &syncCookie, m );
1277                                                 ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1278                                         } else {
1279                                                 int i;
1280                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1281                                                         (void)avl_presentlist_insert( si, &syncUUIDs[i] );
1282                                                         slap_sl_free( syncUUIDs[i].bv_val, op->o_tmpmemctx );
1283                                                 }
1284                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1285                                         }
1286                                         slap_sync_cookie_free( &syncCookie, 0 );
1287                                         break;
1288                                 default:
1289                                         Debug( LDAP_DEBUG_ANY,
1290                                                 "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1291                                                 si->si_ridtxt, (long) si_tag, 0 );
1292                                         ldap_memfree( retoid );
1293                                         ber_bvfree( retdata );
1294                                         continue;
1295                                 }
1296
1297                                 if ( SLAP_MULTIMASTER( op->o_bd ) && check_syncprov( op, si )) {
1298                                         slap_sync_cookie_free( &syncCookie_req, 0 );
1299                                         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
1300                                 }
1301                                 if ( !syncCookie.ctxcsn ) {
1302                                         match = 1;
1303                                 } else if ( !syncCookie_req.ctxcsn ) {
1304                                         match = -1;
1305                                         m = 0;
1306                                 } else {
1307                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
1308                                 }
1309
1310                                 if ( match < 0 ) {
1311                                         if ( si->si_refreshPresent == 1 &&
1312                                                 si_tag != LDAP_TAG_SYNC_NEW_COOKIE &&
1313                                                 syncCookie_req.numcsns == syncCookie.numcsns ) {
1314                                                 syncrepl_del_nonpresent( op, si, NULL,
1315                                                         &syncCookie, m );
1316                                         }
1317
1318                                         if ( syncCookie.ctxcsn )
1319                                         {
1320                                                 rc = syncrepl_updateCookie( si, op, &syncCookie);
1321                                         }
1322                                 }
1323
1324                                 ldap_memfree( retoid );
1325                                 ber_bvfree( retdata );
1326
1327                         } else {
1328                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1329                                         "unknown intermediate response (%d)\n",
1330                                         si->si_ridtxt, rc, 0 );
1331                                 ldap_memfree( retoid );
1332                                 ber_bvfree( retdata );
1333                         }
1334                         break;
1335
1336                 default:
1337                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1338                                 "unknown message (0x%02lx)\n",
1339                                 si->si_ridtxt,
1340                                 (unsigned long)ldap_msgtype( msg ), 0 );
1341                         break;
1342
1343                 }
1344                 if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1345                         slap_sync_cookie_free( &syncCookie_req, 0 );
1346                         slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1347                         slap_sync_cookie_free( &syncCookie, 0 );
1348                 }
1349                 ldap_msgfree( msg );
1350                 msg = NULL;
1351                 if ( ldap_pvt_thread_pool_pausing( &connection_pool )) {
1352                         slap_sync_cookie_free( &syncCookie, 0 );
1353                         slap_sync_cookie_free( &syncCookie_req, 0 );
1354                         return SYNC_PAUSED;
1355                 }
1356         }
1357
1358         if ( rc == -1 ) {
1359                 rc = LDAP_OTHER;
1360                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1361                 err = rc;
1362         }
1363
1364 done:
1365         if ( err != LDAP_SUCCESS ) {
1366                 Debug( LDAP_DEBUG_ANY,
1367                         "do_syncrep2: %s (%d) %s\n",
1368                         si->si_ridtxt, err, ldap_err2string( err ) );
1369         }
1370
1371         slap_sync_cookie_free( &syncCookie, 0 );
1372         slap_sync_cookie_free( &syncCookie_req, 0 );
1373
1374         if ( msg ) ldap_msgfree( msg );
1375
1376         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1377                 if ( si->si_conn ) {
1378                         connection_client_stop( si->si_conn );
1379                         si->si_conn = NULL;
1380                 }
1381                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1382                 si->si_ld = NULL;
1383         }
1384
1385         return rc;
1386 }
1387
1388 static void *
1389 do_syncrepl(
1390         void    *ctx,
1391         void    *arg )
1392 {
1393         struct re_s* rtask = arg;
1394         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1395         Connection conn = {0};
1396         OperationBuffer opbuf;
1397         Operation *op;
1398         int rc = LDAP_SUCCESS;
1399         int dostop = 0;
1400         ber_socket_t s;
1401         int i, defer = 1, fail = 0, freeinfo = 0;
1402         Backend *be;
1403
1404         if ( si == NULL )
1405                 return NULL;
1406         if ( slapd_shutdown )
1407                 return NULL;
1408
1409         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1410
1411         /* Don't get stuck here while a pause is initiated */
1412         while ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
1413                 if ( slapd_shutdown )
1414                         return NULL;
1415                 if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
1416                         ldap_pvt_thread_yield();
1417         }
1418
1419         if ( si->si_ctype < 1 ) {
1420                 goto deleted;
1421         }
1422
1423         switch( abs( si->si_type ) ) {
1424         case LDAP_SYNC_REFRESH_ONLY:
1425         case LDAP_SYNC_REFRESH_AND_PERSIST:
1426                 break;
1427         default:
1428                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1429                 return NULL;
1430         }
1431
1432         if ( slapd_shutdown ) {
1433                 if ( si->si_ld ) {
1434                         if ( si->si_conn ) {
1435                                 connection_client_stop( si->si_conn );
1436                                 si->si_conn = NULL;
1437                         }
1438                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1439                         si->si_ld = NULL;
1440                 }
1441                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1442                 return NULL;
1443         }
1444
1445         connection_fake_init( &conn, &opbuf, ctx );
1446         op = &opbuf.ob_op;
1447         /* o_connids must be unique for slap_graduate_commit_csn */
1448         op->o_connid = SLAPD_SYNC_RID2SYNCCONN(si->si_rid);
1449
1450         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1451         be = si->si_be;
1452
1453         /* Coordinate contextCSN updates with any syncprov overlays
1454          * in use. This may be complicated by the use of the glue
1455          * overlay.
1456          *
1457          * Typically there is a single syncprov mastering the entire
1458          * glued tree. In that case, our contextCSN updates should
1459          * go to the master DB. But if there is no syncprov on the
1460          * master DB, then nothing special is needed here.
1461          *
1462          * Alternatively, there may be individual syncprov overlays
1463          * on each glued branch. In that case, each syncprov only
1464          * knows about changes within its own branch. And so our
1465          * contextCSN updates should only go to the local DB.
1466          */
1467         if ( !si->si_wbe ) {
1468                 if ( SLAP_GLUE_SUBORDINATE( be ) && !overlay_is_inst( be, "syncprov" )) {
1469                         BackendDB * top_be = select_backend( &be->be_nsuffix[0], 1 );
1470                         if ( overlay_is_inst( top_be, "syncprov" ))
1471                                 si->si_wbe = top_be;
1472                         else
1473                                 si->si_wbe = be;
1474                 } else {
1475                         si->si_wbe = be;
1476                 }
1477                 if ( SLAP_SYNC_SUBENTRY( si->si_wbe )) {
1478                         build_new_dn( &si->si_contextdn, &si->si_wbe->be_nsuffix[0],
1479                                 (struct berval *)&slap_ldapsync_cn_bv, NULL );
1480                 } else {
1481                         si->si_contextdn = si->si_wbe->be_nsuffix[0];
1482                 }
1483         }
1484         if ( !si->si_schemachecking )
1485                 op->o_no_schema_check = 1;
1486
1487         /* Establish session, do search */
1488         if ( !si->si_ld ) {
1489                 si->si_refreshDelete = 0;
1490                 si->si_refreshPresent = 0;
1491
1492                 if ( si->si_presentlist ) {
1493                     avl_free( si->si_presentlist, ch_free );
1494                     si->si_presentlist = NULL;
1495                 }
1496
1497                 /* use main DB when retrieving contextCSN */
1498                 op->o_bd = si->si_wbe;
1499                 op->o_dn = op->o_bd->be_rootdn;
1500                 op->o_ndn = op->o_bd->be_rootndn;
1501                 rc = do_syncrep1( op, si );
1502         }
1503
1504 reload:
1505         /* Process results */
1506         if ( rc == LDAP_SUCCESS ) {
1507                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1508
1509                 /* use current DB */
1510                 op->o_bd = be;
1511                 op->o_dn = op->o_bd->be_rootdn;
1512                 op->o_ndn = op->o_bd->be_rootndn;
1513                 rc = do_syncrep2( op, si );
1514                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1515                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1516                         goto reload;
1517                 }
1518
1519 deleted:
1520                 /* We got deleted while running on cn=config */
1521                 if ( si->si_ctype < 1 ) {
1522                         if ( si->si_ctype == -1 ) {
1523                                 si->si_ctype = 0;
1524                                 freeinfo = 1;
1525                         }
1526                         if ( si->si_conn )
1527                                 dostop = 1;
1528                         rc = -1;
1529                 }
1530
1531                 if ( rc != SYNC_PAUSED ) {
1532                         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1533                                 /* If we succeeded, enable the connection for further listening.
1534                                  * If we failed, tear down the connection and reschedule.
1535                                  */
1536                                 if ( rc == LDAP_SUCCESS ) {
1537                                         if ( si->si_conn ) {
1538                                                 connection_client_enable( si->si_conn );
1539                                         } else {
1540                                                 si->si_conn = connection_client_setup( s, do_syncrepl, arg );
1541                                         }
1542                                 } else if ( si->si_conn ) {
1543                                         dostop = 1;
1544                                 }
1545                         } else {
1546                                 if ( rc == -2 ) rc = 0;
1547                         }
1548                 }
1549         }
1550
1551         /* At this point, we have 5 cases:
1552          * 1) for any hard failure, give up and remove this task
1553          * 2) for ServerDown, reschedule this task to run later
1554          * 3) for threadpool pause, reschedule to run immediately
1555          * 4) for Refresh and Success, reschedule to run
1556          * 5) for Persist and Success, reschedule to defer
1557          */
1558         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1559
1560         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1561                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1562         }
1563
1564         if ( dostop ) {
1565                 connection_client_stop( si->si_conn );
1566                 si->si_conn = NULL;
1567         }
1568
1569         if ( rc == SYNC_PAUSED ) {
1570                 rtask->interval.tv_sec = 0;
1571                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1572                 rtask->interval.tv_sec = si->si_interval;
1573                 rc = 0;
1574         } else if ( rc == LDAP_SUCCESS ) {
1575                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1576                         defer = 0;
1577                 }
1578                 rtask->interval.tv_sec = si->si_interval;
1579                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1580                 if ( si->si_retrynum ) {
1581                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1582                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1583                         }
1584                         si->si_retrynum[i] = RETRYNUM_TAIL;
1585                 }
1586         } else {
1587                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1588                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1589                                 break;
1590                 }
1591
1592                 if ( si->si_ctype < 1
1593                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1594                         if ( si->si_re ) {
1595                                 ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1596                                 si->si_re = NULL;
1597                         }
1598                         fail = RETRYNUM_TAIL;
1599                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1600                         if ( si->si_retrynum[i] > 0 )
1601                                 si->si_retrynum[i]--;
1602                         fail = si->si_retrynum[i];
1603                         rtask->interval.tv_sec = si->si_retryinterval[i];
1604                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1605                         slap_wake_listener();
1606                 }
1607         }
1608
1609         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1610         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1611
1612         if ( rc ) {
1613                 if ( fail == RETRYNUM_TAIL ) {
1614                         Debug( LDAP_DEBUG_ANY,
1615                                 "do_syncrepl: %s rc %d quitting\n",
1616                                 si->si_ridtxt, rc, 0 );
1617                 } else if ( fail > 0 ) {
1618                         Debug( LDAP_DEBUG_ANY,
1619                                 "do_syncrepl: %s rc %d retrying (%d retries left)\n",
1620                                 si->si_ridtxt, rc, fail );
1621                 } else {
1622                         Debug( LDAP_DEBUG_ANY,
1623                                 "do_syncrepl: %s rc %d retrying\n",
1624                                 si->si_ridtxt, rc, 0 );
1625                 }
1626         }
1627
1628         /* Do final delete cleanup */
1629         if ( freeinfo ) {
1630                 syncinfo_free( si, 0 );
1631         }
1632         return NULL;
1633 }
1634
1635 #ifdef ENABLE_REWRITE
1636 static int
1637 syncrepl_rewrite_dn(
1638         syncinfo_t *si,
1639         struct berval *dn,
1640         struct berval *sdn )
1641 {
1642         char nul;
1643         int rc;
1644
1645         nul = dn->bv_val[dn->bv_len];
1646         dn->bv_val[dn->bv_len] = 0;
1647         rc = rewrite( si->si_rewrite, SUFFIXM_CTX, dn->bv_val, &sdn->bv_val );
1648         dn->bv_val[dn->bv_len] = nul;
1649
1650         if ( sdn->bv_val == dn->bv_val )
1651                 sdn->bv_val = NULL;
1652         else if ( rc == REWRITE_REGEXEC_OK && sdn->bv_val )
1653                 sdn->bv_len = strlen( sdn->bv_val );
1654         return rc;
1655 }
1656 #define REWRITE_VAL(si, ad, bv, bv2)    \
1657         BER_BVZERO( &bv2 );     \
1658         if ( si->si_rewrite && ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName) \
1659                 syncrepl_rewrite_dn( si, &bv, &bv2); \
1660         if ( BER_BVISNULL( &bv2 ))  \
1661                 ber_dupbv( &bv2, &bv )
1662 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1663         BER_BVZERO( &bv2 );     \
1664         if (si->si_rewrite) \
1665                 syncrepl_rewrite_dn(si, &bv, &bv2); \
1666         rc = dnPrettyNormal( NULL, bv2.bv_val ? &bv2 : &bv, &dn, &ndn, op->o_tmpmemctx ); \
1667         ch_free(bv2.bv_val)
1668 #else
1669 #define REWRITE_VAL(si, ad, bv, bv2)    ber_dupbv(&bv2, &bv)
1670 #define REWRITE_DN(si, bv, bv2, dn, ndn) \
1671         rc = dnPrettyNormal( NULL, &bv, &dn, &ndn, op->o_tmpmemctx )
1672 #endif
1673
1674
1675 static slap_verbmasks modops[] = {
1676         { BER_BVC("add"), LDAP_REQ_ADD },
1677         { BER_BVC("delete"), LDAP_REQ_DELETE },
1678         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1679         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1680         { BER_BVNULL, 0 }
1681 };
1682
1683 static int
1684 syncrepl_accesslog_mods(
1685         syncinfo_t *si,
1686         struct berval *vals,
1687         struct Modifications **modres
1688 )
1689 {
1690         char *colon;
1691         const char *text;
1692         AttributeDescription *ad;
1693         struct berval bv, bv2;
1694         short op;
1695         Modifications *mod = NULL, *modlist = NULL, **modtail;
1696         int i, rc = 0;
1697
1698         modtail = &modlist;
1699
1700         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1701                 ad = NULL;
1702                 bv = vals[i];
1703
1704                 colon = ber_bvchr( &bv, ':' );
1705                 if ( !colon ) {
1706                         /* Invalid */
1707                         continue;
1708                 }
1709
1710                 bv.bv_len = colon - bv.bv_val;
1711                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1712                         /* Invalid */
1713                         Debug( LDAP_DEBUG_ANY, "syncrepl_accesslog_mods: %s "
1714                                 "Invalid attribute %s, %s\n",
1715                                 si->si_ridtxt, bv.bv_val, text );
1716                         slap_mods_free( modlist, 1 );
1717                         modlist = NULL;
1718                         rc = -1;
1719                         break;
1720                 }
1721
1722                 /* Ignore dynamically generated attrs */
1723                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1724                         continue;
1725                 }
1726
1727                 /* Ignore excluded attrs */
1728                 if ( ldap_charray_inlist( si->si_exattrs,
1729                         ad->ad_type->sat_cname.bv_val ) )
1730                 {
1731                         continue;
1732                 }
1733
1734                 switch(colon[1]) {
1735                 case '+':       op = LDAP_MOD_ADD; break;
1736                 case '-':       op = LDAP_MOD_DELETE; break;
1737                 case '=':       op = LDAP_MOD_REPLACE; break;
1738                 case '#':       op = LDAP_MOD_INCREMENT; break;
1739                 default:        continue;
1740                 }
1741
1742                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1743                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1744                         mod->sml_flags = 0;
1745                         mod->sml_op = op;
1746                         mod->sml_next = NULL;
1747                         mod->sml_desc = ad;
1748                         mod->sml_type = ad->ad_cname;
1749                         mod->sml_values = NULL;
1750                         mod->sml_nvalues = NULL;
1751                         mod->sml_numvals = 0;
1752
1753                         *modtail = mod;
1754                         modtail = &mod->sml_next;
1755                 }
1756                 if ( colon[2] == ' ' ) {
1757                         bv.bv_val = colon + 3;
1758                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1759                         REWRITE_VAL( si, ad, bv, bv2 );
1760                         ber_bvarray_add( &mod->sml_values, &bv2 );
1761                         mod->sml_numvals++;
1762                 }
1763         }
1764         *modres = modlist;
1765         return rc;
1766 }
1767
1768 static int
1769 syncrepl_changelog_mods(
1770         syncinfo_t *si,
1771         struct berval *vals,
1772         struct Modifications **modres
1773 )
1774 {
1775         return -1;      /* FIXME */
1776 }
1777
1778 typedef struct OpExtraSync {
1779         OpExtra oe;
1780         syncinfo_t *oe_si;
1781 } OpExtraSync;
1782
1783 /* Copy the original modlist, split Replace ops into Delete/Add,
1784  * and drop mod opattrs since this modification is in the past.
1785  */
1786 static Modifications *mods_dup( Operation *op, Modifications *modlist )
1787 {
1788         Modifications *mod, *modnew = NULL, *modtail = NULL;
1789         int size;
1790         for ( ; modlist; modlist = modlist->sml_next ) {
1791                 if ( modlist->sml_desc == slap_schema.si_ad_modifiersName ||
1792                         modlist->sml_desc == slap_schema.si_ad_modifyTimestamp ||
1793                         modlist->sml_desc == slap_schema.si_ad_entryCSN )
1794                         continue;
1795                 if ( modlist->sml_op == LDAP_MOD_REPLACE ) {
1796                         mod = op->o_tmpalloc( sizeof(Modifications), op->o_tmpmemctx );
1797                         mod->sml_desc = modlist->sml_desc;
1798                         mod->sml_values = NULL;
1799                         mod->sml_nvalues = NULL;
1800                         mod->sml_op = LDAP_MOD_DELETE;
1801                         mod->sml_numvals = 0;
1802                         mod->sml_flags = 0;
1803                         if ( !modnew )
1804                                 modnew = mod;
1805                         if ( modtail )
1806                                 modtail->sml_next = mod;
1807                         modtail = mod;
1808                 }
1809                 if ( modlist->sml_numvals ) {
1810                         size = (modlist->sml_numvals+1) * sizeof(struct berval);
1811                         if ( modlist->sml_nvalues ) size *= 2;
1812                 } else {
1813                         size = 0;
1814                 }
1815                 size += sizeof(Modifications);
1816                 mod = op->o_tmpalloc( size, op->o_tmpmemctx );
1817                 if ( !modnew )
1818                         modnew = mod;
1819                 if ( modtail )
1820                         modtail->sml_next = mod;
1821                 modtail = mod;
1822                 mod->sml_desc = modlist->sml_desc;
1823                 mod->sml_numvals = modlist->sml_numvals;
1824                 mod->sml_flags = 0;
1825                 if ( modlist->sml_numvals ) {
1826                         int i;
1827                         mod->sml_values = (BerVarray)(mod+1);
1828                         for (i=0; i<mod->sml_numvals; i++)
1829                                 mod->sml_values[i] = modlist->sml_values[i];
1830                         if ( modlist->sml_nvalues ) {
1831                                 mod->sml_nvalues = mod->sml_values + mod->sml_numvals + 1;
1832                                 for (i=0; i<mod->sml_numvals; i++)
1833                                         mod->sml_nvalues[i] = modlist->sml_nvalues[i];
1834                         }
1835                 }
1836                 if ( modlist->sml_op == LDAP_MOD_REPLACE )
1837                         mod->sml_op = LDAP_MOD_ADD;
1838                 else
1839                         mod->sml_op = modlist->sml_op;
1840                 mod->sml_next = NULL;
1841         }
1842         return modnew;
1843 }
1844
1845 typedef struct resolve_ctxt {
1846         syncinfo_t *rx_si;
1847         Modifications *rx_mods;
1848 } resolve_ctxt;
1849
1850 static void
1851 compare_vals( Modifications *m1, Modifications *m2 )
1852 {
1853         int i, j;
1854         struct berval *bv1, *bv2;
1855
1856         if ( m2->sml_nvalues ) {
1857                 bv2 = m2->sml_nvalues;
1858                 bv1 = m1->sml_nvalues;
1859         } else {
1860                 bv2 = m2->sml_values;
1861                 bv1 = m1->sml_values;
1862         }
1863         for ( j=0; j<m2->sml_numvals; j++ ) {
1864                 for ( i=0; i<m1->sml_numvals; i++ ) {
1865                         if ( !ber_bvcmp( &bv1[i], &bv2[j] )) {
1866                                 int k;
1867                                 for ( k=i; k<m1->sml_numvals-1; k++ ) {
1868                                         m1->sml_values[k] = m1->sml_values[k+1];
1869                                         if ( m1->sml_nvalues )
1870                                                 m1->sml_nvalues[k] = m1->sml_nvalues[k+1];
1871                                 }
1872                                 m1->sml_numvals--;
1873                                 i--;
1874                         }
1875                 }
1876         }
1877 }
1878
1879 static int
1880 syncrepl_resolve_cb( Operation *op, SlapReply *rs )
1881 {
1882         if ( rs->sr_type == REP_SEARCH ) {
1883                 resolve_ctxt *rx = op->o_callback->sc_private;
1884                 Attribute *a = attr_find( rs->sr_entry->e_attrs, ad_reqMod );
1885                 if ( a ) {
1886                         Modifications *oldmods, *newmods, *m1, *m2, **prev;
1887                         oldmods = rx->rx_mods;
1888                         syncrepl_accesslog_mods( rx->rx_si, a->a_vals, &newmods );
1889                         for ( m2 = newmods; m2; m2=m2->sml_next ) {
1890                                 for ( prev = &oldmods, m1 = *prev; m1; m1 = *prev ) {
1891                                         if ( m1->sml_desc != m2->sml_desc ) {
1892                                                 prev = &m1->sml_next;
1893                                                 continue;
1894                                         }
1895                                         if ( m2->sml_op == LDAP_MOD_DELETE ||
1896                                                 m2->sml_op == LDAP_MOD_REPLACE ) {
1897                                                 int numvals = m2->sml_numvals;
1898                                                 if ( m2->sml_op == LDAP_MOD_REPLACE )
1899                                                         numvals = 0;
1900                                                 /* New delete All cancels everything */
1901                                                 if ( numvals == 0 ) {
1902 drop:
1903                                                         *prev = m1->sml_next;
1904                                                         op->o_tmpfree( m1, op->o_tmpmemctx );
1905                                                         continue;
1906                                                 }
1907                                                 if ( m1->sml_op == LDAP_MOD_DELETE ) {
1908                                                         if ( m1->sml_numvals == 0 ) {
1909                                                                 /* turn this to SOFTDEL later */
1910                                                                 m1->sml_flags = SLAP_MOD_INTERNAL;
1911                                                         } else {
1912                                                                 compare_vals( m1, m2 );
1913                                                                 if ( !m1->sml_numvals )
1914                                                                         goto drop;
1915                                                         }
1916                                                 } else if ( m1->sml_op == LDAP_MOD_ADD ) {
1917                                                         compare_vals( m1, m2 );
1918                                                         if ( !m1->sml_numvals )
1919                                                                 goto drop;
1920                                                 }
1921                                         }
1922
1923                                         if ( m2->sml_op == LDAP_MOD_ADD ||
1924                                                 m2->sml_op == LDAP_MOD_REPLACE ) {
1925                                                 if ( m1->sml_op == LDAP_MOD_DELETE ) {
1926                                                         if ( !m1->sml_numvals ) goto drop;
1927                                                         compare_vals( m1, m2 );
1928                                                         if ( !m1->sml_numvals )
1929                                                                 goto drop;
1930                                                 }
1931                                                 if ( m2->sml_desc->ad_type->sat_atype.at_single_value )
1932                                                         goto drop;
1933                                                 compare_vals( m1, m2 );
1934                                                 if ( !m1->sml_numvals )
1935                                                         goto drop;
1936                                         }
1937                                         prev = &m1->sml_next;
1938                                 }
1939                         }
1940                         slap_mods_free( newmods, 1 );
1941                 }
1942         }
1943         return LDAP_SUCCESS;
1944 }
1945
1946 typedef struct modify_ctxt {
1947         Modifications *mx_orig;
1948         Modifications *mx_free;
1949 } modify_ctxt;
1950
1951 static int
1952 syncrepl_modify_cb( Operation *op, SlapReply *rs )
1953 {
1954         slap_callback *sc = op->o_callback;
1955         modify_ctxt *mx = sc->sc_private;
1956         Modifications *ml;
1957
1958         op->o_callback = sc->sc_next;
1959         op->o_tmpfree( sc, op->o_tmpmemctx );
1960
1961         op->orm_no_opattrs = 0;
1962         op->orm_modlist = mx->mx_orig;
1963         for ( ml = mx->mx_free; ml; ml = mx->mx_free ) {
1964                 mx->mx_free = ml->sml_next;
1965                 op->o_tmpfree( ml, op->o_tmpmemctx );
1966         }
1967         return SLAP_CB_CONTINUE;
1968 }
1969
1970 static int
1971 syncrepl_op_modify( Operation *op, SlapReply *rs )
1972 {
1973         slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
1974         OpExtra *oex;
1975         syncinfo_t *si;
1976         Entry *e;
1977         int rc, match = 0;
1978         Modifications *mod, *newlist;
1979
1980         LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
1981                 if ( oex->oe_key == (void *)syncrepl_message_to_op )
1982                         break;
1983         }
1984         if ( !oex )
1985                 return SLAP_CB_CONTINUE;
1986
1987         si = ((OpExtraSync *)oex)->oe_si;
1988
1989         /* Check if entryCSN in modlist is newer than entryCSN in entry.
1990          * We do it here because the op has been serialized by accesslog
1991          * by the time we get here. If the CSN is new enough, just do the
1992          * mod. If not, we need to resolve conflicts.
1993          */
1994
1995         for ( mod = op->orm_modlist; mod; mod=mod->sml_next ) {
1996                 if ( mod->sml_desc == slap_schema.si_ad_entryCSN ) break;
1997         }
1998         /* FIXME: what should we do if entryCSN is missing from the mod? */
1999         if ( !mod )
2000                 return SLAP_CB_CONTINUE;
2001
2002         rc = overlay_entry_get_ov( op, &op->o_req_ndn, NULL, NULL, 0, &e, on );
2003         if ( rc == 0 ) {
2004                 Attribute *a;
2005                 const char *text;
2006                 a = attr_find( e->e_attrs, slap_schema.si_ad_entryCSN );
2007                 value_match( &match, slap_schema.si_ad_entryCSN,
2008                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
2009                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
2010                         &mod->sml_nvalues[0], &a->a_nvals[0], &text );
2011                 overlay_entry_release_ov( op, e, 0, on );
2012         }
2013         /* mod is newer, let it go */
2014         if ( match > 0 ) {
2015                 for ( mod = op->orm_modlist; mod; mod=mod->sml_next ) {
2016                         if ( mod->sml_op == LDAP_MOD_DELETE )
2017                                 mod->sml_op = SLAP_MOD_SOFTDEL;
2018                 }
2019                 return SLAP_CB_CONTINUE;
2020         }
2021         /* equal? Should never happen */
2022         if ( match == 0 )
2023                 return LDAP_SUCCESS;
2024
2025         /* mod is older: resolve conflicts...
2026          * 1. Save/copy original modlist. Split Replace to Del/Add.
2027          * 2. Find all mods to this reqDN newer than the mod stamp.
2028          * 3. Resolve any mods in this request that affect attributes
2029          *    touched by newer mods.
2030          *    old         new
2031          *    delete all  delete all  drop
2032          *    delete all  delete X    SOFTDEL
2033          *    delete X    delete all  drop
2034          *    delete X    delete X    drop
2035          *    delete X    delete Y    OK
2036          *    delete all  add X       drop
2037          *    delete X    add X       drop
2038          *    delete X    add Y       OK
2039          *    add X       delete all  drop
2040          *    add X       delete X    drop
2041          *    add X       add X       drop
2042          *    add X       add Y       if SV, drop else OK
2043          *
2044          * 4. Swap original modlist back in response callback so
2045          *    that accesslog logs the original mod.
2046          */
2047
2048         newlist = mods_dup( op, op->orm_modlist );
2049
2050         {
2051                 Operation op2 = *op;
2052                 AttributeName an[2];
2053                 const char *text;
2054                 slap_callback cb;
2055                 struct berval bv;
2056                 char *ptr;
2057                 int size, rc;
2058                 SlapReply rs1 = {0};
2059                 resolve_ctxt rx = { si, newlist };
2060
2061                 op2.o_tag = LDAP_REQ_SEARCH;
2062                 op2.ors_scope = LDAP_SCOPE_SUBTREE;
2063                 op2.ors_deref = LDAP_DEREF_NEVER;
2064                 op2.o_req_dn = si->si_logbase;
2065                 op2.o_req_ndn = si->si_logbase;
2066                 op2.ors_tlimit = SLAP_NO_LIMIT;
2067                 op2.ors_slimit = SLAP_NO_LIMIT;
2068                 op2.ors_limit = NULL;
2069                 memset( an, 0, sizeof(an));
2070                 an[0].an_desc = ad_reqMod;
2071                 an[0].an_name = ad_reqMod->ad_cname;
2072                 op2.ors_attrs = an;
2073                 op2.ors_attrsonly = 0;
2074
2075                 bv = mod->sml_nvalues[0];
2076
2077                 size = sizeof("(&(entryCSN>=)(reqDN=))");
2078                 size += bv.bv_len + op->o_req_ndn.bv_len + si->si_logfilterstr.bv_len;
2079                 op2.ors_filterstr.bv_val = op->o_tmpalloc( size, op->o_tmpmemctx );
2080                 op2.ors_filterstr.bv_len = sprintf(op2.ors_filterstr.bv_val,
2081                         "(&(entryCSN>=%s)(reqDN=%s)%s)",
2082                         bv.bv_val, op->o_req_ndn.bv_val, si->si_logfilterstr.bv_val );
2083                 op2.ors_filter = str2filter_x( op, op2.ors_filterstr.bv_val );
2084
2085                 op2.o_callback = &cb;
2086                 cb.sc_response = syncrepl_resolve_cb;
2087                 cb.sc_private = &rx;
2088                 op2.o_bd = select_backend( &op2.o_req_ndn, 1 );
2089                 op2.o_bd->be_search( &op2, &rs1 );
2090                 newlist = rx.rx_mods;
2091         }
2092
2093         {
2094                 slap_callback *sc = op->o_tmpalloc( sizeof(slap_callback) +
2095                         sizeof(modify_ctxt), op->o_tmpmemctx );
2096                 modify_ctxt *mx = (modify_ctxt *)(sc+1);
2097                 Modifications *ml;
2098
2099                 sc->sc_response = syncrepl_modify_cb;
2100                 sc->sc_private = mx;
2101                 sc->sc_next = op->o_callback;
2102                 op->o_callback = sc;
2103                 op->orm_no_opattrs = 1;
2104                 mx->mx_orig = op->orm_modlist;
2105                 mx->mx_free = newlist;
2106                 for ( ml = newlist; ml; ml=ml->sml_next ) {
2107                         if ( ml->sml_flags == SLAP_MOD_INTERNAL ) {
2108                                 ml->sml_flags = 0;
2109                                 ml->sml_op = SLAP_MOD_SOFTDEL;
2110                         }
2111                 }
2112                 op->orm_modlist = newlist;
2113                 op->o_csn = mod->sml_nvalues[0];
2114         }
2115         return SLAP_CB_CONTINUE;
2116 }
2117
2118 static int
2119 syncrepl_message_to_op(
2120         syncinfo_t      *si,
2121         Operation       *op,
2122         LDAPMessage     *msg
2123 )
2124 {
2125         BerElement      *ber = NULL;
2126         Modifications   *modlist = NULL;
2127         logschema *ls;
2128         SlapReply rs = { REP_RESULT };
2129         slap_callback cb = { NULL, null_callback, NULL, NULL };
2130
2131         const char      *text;
2132         char txtbuf[SLAP_TEXT_BUFLEN];
2133         size_t textlen = sizeof txtbuf;
2134
2135         struct berval   bdn, dn = BER_BVNULL, ndn;
2136         struct berval   bv, bv2, *bvals = NULL;
2137         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
2138                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
2139                 psup = BER_BVNULL, nsup = BER_BVNULL;
2140         int             rc, deleteOldRdn = 0, freeReqDn = 0;
2141         int             do_graduate = 0;
2142
2143         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
2144                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
2145                         "Message type should be entry (%d)",
2146                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
2147                 return -1;
2148         }
2149
2150         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
2151                 ls = &accesslog_sc;
2152         else
2153                 ls = &changelog_sc;
2154
2155         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
2156
2157         if ( rc != LDAP_SUCCESS ) {
2158                 Debug( LDAP_DEBUG_ANY,
2159                         "syncrepl_message_to_op: %s dn get failed (%d)",
2160                         si->si_ridtxt, rc, 0 );
2161                 return rc;
2162         }
2163
2164         op->o_tag = LBER_DEFAULT;
2165         op->o_bd = si->si_wbe;
2166
2167         if ( BER_BVISEMPTY( &bdn )) {
2168                 Debug( LDAP_DEBUG_ANY,
2169                         "syncrepl_message_to_op: %s got empty dn",
2170                         si->si_ridtxt, 0, 0 );
2171                 return LDAP_OTHER;
2172         }
2173
2174         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
2175                 == LDAP_SUCCESS ) {
2176                 if ( bv.bv_val == NULL )
2177                         break;
2178
2179                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
2180                         bdn = bvals[0];
2181                         REWRITE_DN( si, bdn, bv2, dn, ndn );
2182                         if ( rc != LDAP_SUCCESS ) {
2183                                 Debug( LDAP_DEBUG_ANY,
2184                                         "syncrepl_message_to_op: %s "
2185                                         "dn \"%s\" normalization failed (%d)",
2186                                         si->si_ridtxt, bdn.bv_val, rc );
2187                                 rc = -1;
2188                                 ch_free( bvals );
2189                                 goto done;
2190                         }
2191                         ber_dupbv( &op->o_req_dn, &dn );
2192                         ber_dupbv( &op->o_req_ndn, &ndn );
2193                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
2194                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
2195                         freeReqDn = 1;
2196                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
2197                         int i = verb_to_mask( bvals[0].bv_val, modops );
2198                         if ( i < 0 ) {
2199                                 Debug( LDAP_DEBUG_ANY,
2200                                         "syncrepl_message_to_op: %s unknown op %s",
2201                                         si->si_ridtxt, bvals[0].bv_val, 0 );
2202                                 ch_free( bvals );
2203                                 rc = -1;
2204                                 goto done;
2205                         }
2206                         op->o_tag = modops[i].mask;
2207                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
2208                         /* Parse attribute into modlist */
2209                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
2210                                 rc = syncrepl_accesslog_mods( si, bvals, &modlist );
2211                         } else {
2212                                 rc = syncrepl_changelog_mods( si, bvals, &modlist );
2213                         }
2214                         if ( rc ) goto done;
2215                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
2216                         rdn = bvals[0];
2217                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
2218                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
2219                                 deleteOldRdn = 1;
2220                         }
2221                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
2222                         sup = bvals[0];
2223                 } else if ( !ber_bvstrcasecmp( &bv,
2224                         &slap_schema.si_ad_entryCSN->ad_cname ) )
2225                 {
2226                         slap_queue_csn( op, bvals );
2227                         do_graduate = 1;
2228                 }
2229                 ch_free( bvals );
2230         }
2231
2232         /* If we didn't get a mod type or a target DN, bail out */
2233         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
2234                 rc = -1;
2235                 goto done;
2236         }
2237
2238         op->o_callback = &cb;
2239         slap_op_time( &op->o_time, &op->o_tincr );
2240
2241         switch( op->o_tag ) {
2242         case LDAP_REQ_ADD:
2243         case LDAP_REQ_MODIFY:
2244                 /* If we didn't get required data, bail */
2245                 if ( !modlist ) goto done;
2246
2247                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
2248
2249                 if ( rc != LDAP_SUCCESS ) {
2250                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
2251                                 "mods check (%s)\n",
2252                                 si->si_ridtxt, text, 0 );
2253                         goto done;
2254                 }
2255
2256                 if ( op->o_tag == LDAP_REQ_ADD ) {
2257                         Entry *e = entry_alloc();
2258                         op->ora_e = e;
2259                         op->ora_e->e_name = op->o_req_dn;
2260                         op->ora_e->e_nname = op->o_req_ndn;
2261                         freeReqDn = 0;
2262                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
2263                         if( rc != LDAP_SUCCESS ) {
2264                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
2265                                 "mods2entry (%s)\n",
2266                                         si->si_ridtxt, text, 0 );
2267                         } else {
2268                                 rc = op->o_bd->be_add( op, &rs );
2269                                 Debug( LDAP_DEBUG_SYNC,
2270                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
2271                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2272                                 do_graduate = 0;
2273                         }
2274                         if ( e == op->ora_e )
2275                                 be_entry_release_w( op, op->ora_e );
2276                 } else {
2277                         OpExtraSync oes;
2278                         op->orm_modlist = modlist;
2279                         op->o_bd = si->si_wbe;
2280                         /* delta-mmr needs additional checks in syncrepl_op_modify */
2281                         if ( SLAP_MULTIMASTER( op->o_bd )) {
2282                                 oes.oe.oe_key = (void *)syncrepl_message_to_op;
2283                                 oes.oe_si = si;
2284                                 LDAP_SLIST_INSERT_HEAD( &op->o_extra, &oes.oe, oe_next );
2285                         }
2286                         rc = op->o_bd->be_modify( op, &rs );
2287                         if ( SLAP_MULTIMASTER( op->o_bd )) {
2288                                 LDAP_SLIST_REMOVE( &op->o_extra, &oes.oe, OpExtra, oe_next );
2289                         }
2290                         modlist = op->orm_modlist;
2291                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
2292                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
2293                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2294                         op->o_bd = si->si_be;
2295                         do_graduate = 0;
2296                 }
2297                 break;
2298         case LDAP_REQ_MODRDN:
2299                 if ( BER_BVISNULL( &rdn ) ) goto done;
2300
2301                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
2302                         goto done;
2303                 }
2304                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
2305                         goto done;
2306                 }
2307                 if ( !BER_BVISNULL( &sup ) ) {
2308                         REWRITE_DN( si, sup, bv2, psup, nsup );
2309                         if ( rc )
2310                                 goto done;
2311                         op->orr_newSup = &psup;
2312                         op->orr_nnewSup = &nsup;
2313                 } else {
2314                         op->orr_newSup = NULL;
2315                         op->orr_nnewSup = NULL;
2316                 }
2317                 op->orr_newrdn = prdn;
2318                 op->orr_nnewrdn = nrdn;
2319                 op->orr_deleteoldrdn = deleteOldRdn;
2320                 op->orr_modlist = NULL;
2321                 if ( slap_modrdn2mods( op, &rs ) ) {
2322                         goto done;
2323                 }
2324
2325                 /* Append modlist for operational attrs */
2326                 {
2327                         Modifications *m;
2328
2329                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
2330                                 ;
2331                         m->sml_next = modlist;
2332                         modlist = NULL;
2333                 }
2334                 rc = op->o_bd->be_modrdn( op, &rs );
2335                 slap_mods_free( op->orr_modlist, 1 );
2336                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
2337                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
2338                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2339                 do_graduate = 0;
2340                 break;
2341         case LDAP_REQ_DELETE:
2342                 rc = op->o_bd->be_delete( op, &rs );
2343                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
2344                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
2345                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2346                 do_graduate = 0;
2347                 break;
2348         }
2349 done:
2350         if ( do_graduate )
2351                 slap_graduate_commit_csn( op );
2352         op->o_bd = si->si_be;
2353         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2354         BER_BVZERO( &op->o_csn );
2355         if ( modlist ) {
2356                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
2357         }
2358         if ( !BER_BVISNULL( &rdn ) ) {
2359                 if ( !BER_BVISNULL( &nsup ) ) {
2360                         ch_free( nsup.bv_val );
2361                 }
2362                 if ( !BER_BVISNULL( &psup ) ) {
2363                         ch_free( psup.bv_val );
2364                 }
2365                 if ( !BER_BVISNULL( &nrdn ) ) {
2366                         ch_free( nrdn.bv_val );
2367                 }
2368                 if ( !BER_BVISNULL( &prdn ) ) {
2369                         ch_free( prdn.bv_val );
2370                 }
2371         }
2372         if ( freeReqDn ) {
2373                 ch_free( op->o_req_ndn.bv_val );
2374                 ch_free( op->o_req_dn.bv_val );
2375         }
2376         ber_free( ber, 0 );
2377         return rc;
2378 }
2379
2380 static int
2381 syncrepl_message_to_entry(
2382         syncinfo_t      *si,
2383         Operation       *op,
2384         LDAPMessage     *msg,
2385         Modifications   **modlist,
2386         Entry                   **entry,
2387         int             syncstate
2388 )
2389 {
2390         Entry           *e = NULL;
2391         BerElement      *ber = NULL;
2392         Modifications   tmp;
2393         Modifications   *mod;
2394         Modifications   **modtail = modlist;
2395
2396         const char      *text;
2397         char txtbuf[SLAP_TEXT_BUFLEN];
2398         size_t textlen = sizeof txtbuf;
2399
2400         struct berval   bdn = BER_BVNULL, dn, ndn, bv2;
2401         int             rc, is_ctx;
2402
2403         *modlist = NULL;
2404
2405         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
2406                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
2407                         "Message type should be entry (%d)",
2408                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
2409                 return -1;
2410         }
2411
2412         op->o_tag = LDAP_REQ_ADD;
2413
2414         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
2415         if ( rc != LDAP_SUCCESS ) {
2416                 Debug( LDAP_DEBUG_ANY,
2417                         "syncrepl_message_to_entry: %s dn get failed (%d)",
2418                         si->si_ridtxt, rc, 0 );
2419                 return rc;
2420         }
2421
2422         if ( BER_BVISEMPTY( &bdn ) && !BER_BVISEMPTY( &op->o_bd->be_nsuffix[0] ) ) {
2423                 Debug( LDAP_DEBUG_ANY,
2424                         "syncrepl_message_to_entry: %s got empty dn",
2425                         si->si_ridtxt, 0, 0 );
2426                 return LDAP_OTHER;
2427         }
2428
2429         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
2430                 /* NOTE: this could be done even before decoding the DN,
2431                  * although encoding errors wouldn't be detected */
2432                 rc = LDAP_SUCCESS;
2433                 goto done;
2434         }
2435
2436         if ( entry == NULL ) {
2437                 return -1;
2438         }
2439
2440         REWRITE_DN( si, bdn, bv2, dn, ndn );
2441         if ( rc != LDAP_SUCCESS ) {
2442                 /* One of the things that could happen is that the schema
2443                  * is not lined-up; this could result in unknown attributes.
2444                  * A value non conformant to the syntax should be unlikely,
2445                  * except when replicating between different versions
2446                  * of the software, or when syntax validation bugs are fixed
2447                  */
2448                 Debug( LDAP_DEBUG_ANY,
2449                         "syncrepl_message_to_entry: "
2450                         "%s dn \"%s\" normalization failed (%d)",
2451                         si->si_ridtxt, bdn.bv_val, rc );
2452                 return rc;
2453         }
2454
2455         ber_dupbv( &op->o_req_dn, &dn );
2456         ber_dupbv( &op->o_req_ndn, &ndn );
2457         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
2458         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
2459
2460         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
2461
2462         e = entry_alloc();
2463         e->e_name = op->o_req_dn;
2464         e->e_nname = op->o_req_ndn;
2465
2466         while ( ber_remaining( ber ) ) {
2467                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
2468                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
2469                 {
2470                         break;
2471                 }
2472
2473                 /* Drop all updates to the contextCSN of the context entry
2474                  * (ITS#4622, etc.)
2475                  */
2476                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
2477                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
2478                         ber_bvarray_free( tmp.sml_values );
2479                         continue;
2480                 }
2481
2482                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
2483
2484                 mod->sml_op = LDAP_MOD_REPLACE;
2485                 mod->sml_flags = 0;
2486                 mod->sml_next = NULL;
2487                 mod->sml_desc = NULL;
2488                 mod->sml_type = tmp.sml_type;
2489                 mod->sml_values = tmp.sml_values;
2490                 mod->sml_nvalues = NULL;
2491                 mod->sml_numvals = 0;   /* slap_mods_check will set this */
2492
2493 #ifdef ENABLE_REWRITE
2494                 if (si->si_rewrite) {
2495                         AttributeDescription *ad = NULL;
2496                         slap_bv2ad( &tmp.sml_type, &ad, &text );
2497                         if ( ad ) {
2498                                 mod->sml_desc = ad;
2499                                 mod->sml_type = ad->ad_cname;
2500                                 if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
2501                                         int i;
2502                                         for ( i = 0; tmp.sml_values[i].bv_val; i++ ) {
2503                                                 syncrepl_rewrite_dn( si, &tmp.sml_values[i], &bv2);
2504                                                 if ( !BER_BVISNULL( &bv2 )) {
2505                                                         ber_memfree( tmp.sml_values[i].bv_val );
2506                                                         tmp.sml_values[i] = bv2;
2507                                                 }
2508                                         }
2509                                 }
2510                         }
2511                 }
2512 #endif
2513                 *modtail = mod;
2514                 modtail = &mod->sml_next;
2515         }
2516
2517         if ( *modlist == NULL ) {
2518                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
2519                         si->si_ridtxt, 0, 0 );
2520                 rc = -1;
2521                 goto done;
2522         }
2523
2524         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
2525
2526         if ( rc != LDAP_SUCCESS ) {
2527                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
2528                         si->si_ridtxt, text, 0 );
2529                 goto done;
2530         }
2531
2532         /* Strip out dynamically generated attrs */
2533         for ( modtail = modlist; *modtail ; ) {
2534                 mod = *modtail;
2535                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
2536                         *modtail = mod->sml_next;
2537                         slap_mod_free( &mod->sml_mod, 0 );
2538                         ch_free( mod );
2539                 } else {
2540                         modtail = &mod->sml_next;
2541                 }
2542         }
2543
2544         /* Strip out attrs in exattrs list */
2545         for ( modtail = modlist; *modtail ; ) {
2546                 mod = *modtail;
2547                 if ( ldap_charray_inlist( si->si_exattrs,
2548                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
2549                 {
2550                         *modtail = mod->sml_next;
2551                         slap_mod_free( &mod->sml_mod, 0 );
2552                         ch_free( mod );
2553                 } else {
2554                         modtail = &mod->sml_next;
2555                 }
2556         }
2557
2558         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
2559         if( rc != LDAP_SUCCESS ) {
2560                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
2561                         si->si_ridtxt, text, 0 );
2562         }
2563
2564 done:
2565         ber_free( ber, 0 );
2566         if ( rc != LDAP_SUCCESS ) {
2567                 if ( e ) {
2568                         entry_free( e );
2569                         e = NULL;
2570                 }
2571         }
2572         if ( entry )
2573                 *entry = e;
2574
2575         return rc;
2576 }
2577
2578 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
2579
2580 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
2581  * entry if a previous refresh was interrupted before sending us a new
2582  * context state. We try to compare the new entry to the existing entry
2583  * and ignore the new entry if they are the same.
2584  *
2585  * Also, we may get an update where the entryDN has changed, due to
2586  * a ModDn on the provider. We detect this as well, so we can issue
2587  * the corresponding operation locally.
2588  *
2589  * In the case of a modify, we get a list of all the attributes
2590  * in the original entry. Rather than deleting the entry and re-adding it,
2591  * we issue a Modify request that deletes all the attributes and adds all
2592  * the new ones. This avoids the issue of trying to delete/add a non-leaf
2593  * entry.
2594  *
2595  * We otherwise distinguish ModDN from Modify; in the case of
2596  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
2597  * operational attributes from the entry, and do a regular ModDN.
2598  */
2599 typedef struct dninfo {
2600         Entry *new_entry;
2601         struct berval dn;
2602         struct berval ndn;
2603         struct berval nnewSup;
2604         int renamed;    /* Was an existing entry renamed? */
2605         int delOldRDN;  /* Was old RDN deleted? */
2606         Modifications **modlist;        /* the modlist we received */
2607         Modifications *mods;    /* the modlist we compared */
2608         Attribute *oldNattr;    /* old naming attr */
2609         AttributeDescription *oldDesc;  /* for renames */
2610         AttributeDescription *newDesc;  /* for renames */
2611 } dninfo;
2612
2613 /* return 1 if inserted, 0 otherwise */
2614 static int
2615 avl_presentlist_insert(
2616         syncinfo_t* si,
2617         struct berval *syncUUID )
2618 {
2619         struct berval *syncuuid_bv = ch_malloc( sizeof( struct berval ) + syncUUID->bv_len + 1 );
2620
2621         syncuuid_bv->bv_len = syncUUID->bv_len;
2622         syncuuid_bv->bv_val = (char *)&syncuuid_bv[1];
2623         AC_MEMCPY( syncuuid_bv->bv_val, syncUUID->bv_val, syncUUID->bv_len );
2624         syncuuid_bv->bv_val[ syncuuid_bv->bv_len ] = '\0';
2625
2626         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
2627                 syncuuid_cmp, avl_dup_error ) )
2628         {
2629                 ch_free( syncuuid_bv );
2630                 return 0;
2631         }
2632
2633         return 1;
2634 }
2635
2636 static int
2637 syncrepl_entry(
2638         syncinfo_t* si,
2639         Operation *op,
2640         Entry* entry,
2641         Modifications** modlist,
2642         int syncstate,
2643         struct berval* syncUUID,
2644         struct berval* syncCSN )
2645 {
2646         Backend *be = op->o_bd;
2647         slap_callback   cb = { NULL, NULL, NULL, NULL };
2648         int syncuuid_inserted = 0;
2649         struct berval   syncUUID_strrep = BER_BVNULL;
2650
2651         SlapReply       rs_search = {REP_RESULT};
2652         Filter f = {0};
2653         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
2654         int rc = LDAP_SUCCESS;
2655
2656         struct berval pdn = BER_BVNULL;
2657         dninfo dni = {0};
2658         int     retry = 1;
2659         int     freecsn = 1;
2660
2661         Debug( LDAP_DEBUG_SYNC,
2662                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
2663                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
2664
2665         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
2666                 if ( !si->si_refreshPresent && !si->si_refreshDone ) {
2667                         syncuuid_inserted = avl_presentlist_insert( si, syncUUID );
2668                 }
2669         }
2670
2671         if ( syncstate == LDAP_SYNC_PRESENT ) {
2672                 return 0;
2673         } else if ( syncstate != LDAP_SYNC_DELETE ) {
2674                 if ( entry == NULL ) {
2675                         return 0;
2676                 }
2677         }
2678
2679         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
2680         if ( syncstate != LDAP_SYNC_DELETE ) {
2681                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
2682
2683                 if ( a == NULL ) {
2684                         /* add if missing */
2685                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
2686                                 &syncUUID_strrep, syncUUID );
2687
2688                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
2689                         /* replace only if necessary */
2690                         if ( a->a_nvals != a->a_vals ) {
2691                                 ber_memfree( a->a_nvals[0].bv_val );
2692                                 ber_dupbv( &a->a_nvals[0], syncUUID );
2693                         }
2694                         ber_memfree( a->a_vals[0].bv_val );
2695                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
2696                 }
2697         }
2698
2699         f.f_choice = LDAP_FILTER_EQUALITY;
2700         f.f_ava = &ava;
2701         ava.aa_desc = slap_schema.si_ad_entryUUID;
2702         ava.aa_value = *syncUUID;
2703
2704         if ( syncuuid_inserted ) {
2705                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
2706                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
2707         }
2708         op->ors_filter = &f;
2709
2710         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
2711         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
2712                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
2713         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
2714         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
2715                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
2716         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
2717         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
2718
2719         op->o_tag = LDAP_REQ_SEARCH;
2720         op->ors_scope = LDAP_SCOPE_SUBTREE;
2721         op->ors_deref = LDAP_DEREF_NEVER;
2722
2723         /* get the entry for this UUID */
2724 #ifdef ENABLE_REWRITE
2725         if ( si->si_rewrite ) {
2726                 op->o_req_dn = si->si_suffixm;
2727                 op->o_req_ndn = si->si_suffixm;
2728         } else
2729 #endif
2730         {
2731                 op->o_req_dn = si->si_base;
2732                 op->o_req_ndn = si->si_base;
2733         }
2734
2735         op->o_time = slap_get_time();
2736         op->ors_tlimit = SLAP_NO_LIMIT;
2737         op->ors_slimit = 1;
2738         op->ors_limit = NULL;
2739
2740         op->ors_attrs = slap_anlist_all_attributes;
2741         op->ors_attrsonly = 0;
2742
2743         /* set callback function */
2744         op->o_callback = &cb;
2745         cb.sc_response = dn_callback;
2746         cb.sc_private = &dni;
2747         dni.new_entry = entry;
2748         dni.modlist = modlist;
2749
2750         rc = be->be_search( op, &rs_search );
2751         Debug( LDAP_DEBUG_SYNC,
2752                         "syncrepl_entry: %s be_search (%d)\n",
2753                         si->si_ridtxt, rc, 0 );
2754
2755         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
2756                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2757         }
2758
2759         cb.sc_response = null_callback;
2760         cb.sc_private = si;
2761
2762         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
2763                 Debug( LDAP_DEBUG_SYNC,
2764                                 "syncrepl_entry: %s %s\n",
2765                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
2766         } else {
2767                 Debug( LDAP_DEBUG_SYNC,
2768                                 "syncrepl_entry: %s %s\n",
2769                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
2770         }
2771
2772         assert( BER_BVISNULL( &op->o_csn ) );
2773         if ( syncCSN ) {
2774                 slap_queue_csn( op, syncCSN );
2775         }
2776
2777         slap_op_time( &op->o_time, &op->o_tincr );
2778         switch ( syncstate ) {
2779         case LDAP_SYNC_ADD:
2780         case LDAP_SYNC_MODIFY:
2781                 if ( BER_BVISNULL( &op->o_csn ))
2782                 {
2783
2784                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
2785                         if ( a ) {
2786                                 /* FIXME: op->o_csn is assumed to be
2787                                  * on the thread's slab; this needs
2788                                  * to be cleared ASAP.
2789                                  * What happens if already present?
2790                                  */
2791                                 assert( BER_BVISNULL( &op->o_csn ) );
2792                                 op->o_csn = a->a_vals[0];
2793                                 freecsn = 0;
2794                         }
2795                 }
2796 retry_add:;
2797                 if ( BER_BVISNULL( &dni.dn ) ) {
2798                         SlapReply       rs_add = {REP_RESULT};
2799
2800                         op->o_req_dn = entry->e_name;
2801                         op->o_req_ndn = entry->e_nname;
2802                         op->o_tag = LDAP_REQ_ADD;
2803                         op->ora_e = entry;
2804                         op->o_bd = si->si_wbe;
2805
2806                         rc = op->o_bd->be_add( op, &rs_add );
2807                         Debug( LDAP_DEBUG_SYNC,
2808                                         "syncrepl_entry: %s be_add %s (%d)\n",
2809                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
2810                         switch ( rs_add.sr_err ) {
2811                         case LDAP_SUCCESS:
2812                                 if ( op->ora_e == entry ) {
2813                                         be_entry_release_w( op, entry );
2814                                 }
2815                                 entry = NULL;
2816                                 break;
2817
2818                         case LDAP_REFERRAL:
2819                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2820                          * only if the suffix entry is not present */
2821                         case LDAP_NO_SUCH_OBJECT:
2822                                 rc = syncrepl_add_glue( op, entry );
2823                                 entry = NULL;
2824                                 break;
2825
2826                         /* if an entry was added via syncrepl_add_glue(),
2827                          * it likely has no entryUUID, so the previous
2828                          * be_search() doesn't find it.  In this case,
2829                          * give syncrepl a chance to modify it. Also
2830                          * allow for entries that were recreated with the
2831                          * same DN but a different entryUUID.
2832                          */
2833                         case LDAP_ALREADY_EXISTS:
2834                                 if ( retry ) {
2835                                         Operation       op2 = *op;
2836                                         SlapReply       rs2 = { REP_RESULT };
2837                                         slap_callback   cb2 = { 0 };
2838
2839                                         op2.o_bd = be;
2840                                         op2.o_tag = LDAP_REQ_SEARCH;
2841                                         op2.o_req_dn = entry->e_name;
2842                                         op2.o_req_ndn = entry->e_nname;
2843                                         op2.ors_scope = LDAP_SCOPE_BASE;
2844                                         op2.ors_deref = LDAP_DEREF_NEVER;
2845                                         op2.ors_attrs = slap_anlist_all_attributes;
2846                                         op2.ors_attrsonly = 0;
2847                                         op2.ors_limit = NULL;
2848                                         op2.ors_slimit = 1;
2849                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2850
2851                                         f.f_choice = LDAP_FILTER_PRESENT;
2852                                         f.f_desc = slap_schema.si_ad_objectClass;
2853                                         op2.ors_filter = &f;
2854                                         op2.ors_filterstr = generic_filterstr;
2855
2856                                         op2.o_callback = &cb2;
2857                                         cb2.sc_response = dn_callback;
2858                                         cb2.sc_private = &dni;
2859
2860                                         rc = be->be_search( &op2, &rs2 );
2861                                         if ( rc ) goto done;
2862
2863                                         retry = 0;
2864                                         slap_op_time( &op->o_time, &op->o_tincr );
2865                                         goto retry_add;
2866                                 }
2867                                 /* FALLTHRU */
2868
2869                         default:
2870                                 Debug( LDAP_DEBUG_ANY,
2871                                         "syncrepl_entry: %s be_add %s failed (%d)\n",
2872                                         si->si_ridtxt, op->o_req_dn.bv_val, rs_add.sr_err );
2873                                 break;
2874                         }
2875                         syncCSN = NULL;
2876                         op->o_bd = be;
2877                         goto done;
2878                 }
2879                 /* FALLTHRU */
2880                 op->o_req_dn = dni.dn;
2881                 op->o_req_ndn = dni.ndn;
2882                 if ( dni.renamed ) {
2883                         struct berval noldp, newp;
2884                         Modifications *mod, **modtail, **ml, *m2;
2885                         int i, got_replace = 0, just_rename = 0;
2886                         SlapReply rs_modify = {REP_RESULT};
2887
2888                         op->o_tag = LDAP_REQ_MODRDN;
2889                         dnRdn( &entry->e_name, &op->orr_newrdn );
2890                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2891
2892                         if ( !BER_BVISNULL( &dni.nnewSup )) {
2893                                 dnParent( &entry->e_name, &newp );
2894                                 op->orr_newSup = &newp;
2895                                 op->orr_nnewSup = &dni.nnewSup;
2896                         } else {
2897                                 op->orr_newSup = NULL;
2898                                 op->orr_nnewSup = NULL;
2899                         }
2900                         op->orr_deleteoldrdn = dni.delOldRDN;
2901                         op->orr_modlist = NULL;
2902                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2903                                 goto done;
2904                         }
2905
2906                         /* Drop the RDN-related mods from this op, because their
2907                          * equivalents were just setup by slap_modrdn2mods.
2908                          *
2909                          * If delOldRDN is TRUE then we should see a delete modop
2910                          * for oldDesc. We might see a replace instead.
2911                          *  delete with no values: therefore newDesc != oldDesc.
2912                          *   if oldNattr had only one value, then Drop this op.
2913                          *  delete with 1 value: can only be the oldRDN value. Drop op.
2914                          *  delete with N values: Drop oldRDN value, keep remainder.
2915                          *  replace with 1 value: if oldNattr had only one value and
2916                          *     newDesc == oldDesc, Drop this op.
2917                          * Any other cases must be left intact.
2918                          *
2919                          * We should also see an add modop for newDesc. (But not if
2920                          * we got a replace modop due to delOldRDN.) If it has
2921                          * multiple values, we'll have to drop the new RDN value.
2922                          */
2923                         modtail = &op->orr_modlist;
2924                         if ( dni.delOldRDN ) {
2925                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2926                                         if ( (*ml)->sml_desc == dni.oldDesc ) {
2927                                                 mod = *ml;
2928                                                 if ( mod->sml_op == LDAP_MOD_REPLACE &&
2929                                                         dni.oldDesc != dni.newDesc ) {
2930                                                         /* This Replace is due to other Mods.
2931                                                          * Just let it ride.
2932                                                          */
2933                                                         continue;
2934                                                 }
2935                                                 if ( mod->sml_numvals <= 1 &&
2936                                                         dni.oldNattr->a_numvals == 1 &&
2937                                                         ( mod->sml_op == LDAP_MOD_DELETE ||
2938                                                           mod->sml_op == LDAP_MOD_REPLACE )) {
2939                                                         if ( mod->sml_op == LDAP_MOD_REPLACE )
2940                                                                 got_replace = 1;
2941                                                         /* Drop this op */
2942                                                         *ml = mod->sml_next;
2943                                                         mod->sml_next = NULL;
2944                                                         slap_mods_free( mod, 1 );
2945                                                         break;
2946                                                 }
2947                                                 if ( mod->sml_op != LDAP_MOD_DELETE || mod->sml_numvals == 0 )
2948                                                         continue;
2949                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2950                                                         if ( m2->sml_desc == dni.oldDesc &&
2951                                                                 m2->sml_op == LDAP_MOD_DELETE ) break;
2952                                                 }
2953                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2954                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2955                                                                 mod->sml_numvals--;
2956                                                                 ch_free( mod->sml_values[i].bv_val );
2957                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2958                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
2959                                                                 if ( mod->sml_nvalues ) {
2960                                                                         ch_free( mod->sml_nvalues[i].bv_val );
2961                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
2962                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
2963                                                                 }
2964                                                                 break;
2965                                                         }
2966                                                 }
2967                                                 if ( !mod->sml_numvals ) {
2968                                                         /* Drop this op */
2969                                                         *ml = mod->sml_next;
2970                                                         mod->sml_next = NULL;
2971                                                         slap_mods_free( mod, 1 );
2972                                                 }
2973                                                 break;
2974                                         }
2975                                 }
2976                         }
2977                         if ( !got_replace ) {
2978                                 for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next ) {
2979                                         if ( (*ml)->sml_desc == dni.newDesc ) {
2980                                                 mod = *ml;
2981                                                 if ( mod->sml_op != LDAP_MOD_ADD )
2982                                                         continue;
2983                                                 if ( mod->sml_numvals == 1 ) {
2984                                                         /* Drop this op */
2985                                                         *ml = mod->sml_next;
2986                                                         mod->sml_next = NULL;
2987                                                         slap_mods_free( mod, 1 );
2988                                                         break;
2989                                                 }
2990                                                 for ( m2 = op->orr_modlist; m2; m2=m2->sml_next ) {
2991                                                         if ( m2->sml_desc == dni.oldDesc &&
2992                                                                 m2->sml_op == SLAP_MOD_SOFTADD ) break;
2993                                                 }
2994                                                 for ( i=0; i<mod->sml_numvals; i++ ) {
2995                                                         if ( bvmatch( &mod->sml_values[i], &m2->sml_values[0] )) {
2996                                                                 mod->sml_numvals--;
2997                                                                 ch_free( mod->sml_values[i].bv_val );
2998                                                                 mod->sml_values[i] = mod->sml_values[mod->sml_numvals];
2999                                                                 BER_BVZERO( &mod->sml_values[mod->sml_numvals] );
3000                                                                 if ( mod->sml_nvalues ) {
3001                                                                         ch_free( mod->sml_nvalues[i].bv_val );
3002                                                                         mod->sml_nvalues[i] = mod->sml_nvalues[mod->sml_numvals];
3003                                                                         BER_BVZERO( &mod->sml_nvalues[mod->sml_numvals] );
3004                                                                 }
3005                                                                 break;
3006                                                         }
3007                                                 }
3008                                                 break;
3009                                         }
3010                                 }
3011                         }
3012
3013                         /* RDNs must be NUL-terminated for back-ldap */
3014                         noldp = op->orr_newrdn;
3015                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
3016                         noldp = op->orr_nnewrdn;
3017                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
3018
3019                         /* Setup opattrs too */
3020                         {
3021                                 static AttributeDescription *nullattr = NULL;
3022                                 static AttributeDescription **const opattrs[] = {
3023                                         &slap_schema.si_ad_entryCSN,
3024                                         &slap_schema.si_ad_modifiersName,
3025                                         &slap_schema.si_ad_modifyTimestamp,
3026                                         &nullattr
3027                                 };
3028                                 AttributeDescription *opattr;
3029                                 int i;
3030
3031                                 modtail = &m2;
3032                                 /* pull mod off incoming modlist */
3033                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
3034                                         for ( ml = &dni.mods; *ml; ml = &(*ml)->sml_next )
3035                                         {
3036                                                 if ( (*ml)->sml_desc == opattr ) {
3037                                                         mod = *ml;
3038                                                         *ml = mod->sml_next;
3039                                                         mod->sml_next = NULL;
3040                                                         *modtail = mod;
3041                                                         modtail = &mod->sml_next;
3042                                                         break;
3043                                                 }
3044                                         }
3045                                 }
3046                                 /* If there are still Modifications left, put the opattrs
3047                                  * back, and let be_modify run. Otherwise, append the opattrs
3048                                  * to the orr_modlist.
3049                                  */
3050                                 if ( dni.mods ) {
3051                                         mod = dni.mods;
3052                                         /* don't set a CSN for the rename op */
3053                                         if ( syncCSN )
3054                                                 slap_graduate_commit_csn( op );
3055                                 } else {
3056                                         mod = op->orr_modlist;
3057                                         just_rename = 1;
3058                                 }
3059                                 for ( ; mod->sml_next; mod=mod->sml_next );
3060                                 mod->sml_next = m2;
3061                         }
3062                         op->o_bd = si->si_wbe;
3063 retry_modrdn:;
3064                         rs_reinit( &rs_modify, REP_RESULT );
3065                         rc = op->o_bd->be_modrdn( op, &rs_modify );
3066
3067                         /* NOTE: noSuchObject should result because the new superior
3068                          * has not been added yet (ITS#6472) */
3069                         if ( rc == LDAP_NO_SUCH_OBJECT && !BER_BVISNULL( op->orr_nnewSup )) {
3070                                 Operation op2 = *op;
3071                                 rc = syncrepl_add_glue_ancestors( &op2, entry );
3072                                 if ( rc == LDAP_SUCCESS ) {
3073                                         goto retry_modrdn;
3074                                 }
3075                         }
3076
3077                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
3078                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
3079
3080                         slap_mods_free( op->orr_modlist, 1 );
3081                         Debug( LDAP_DEBUG_SYNC,
3082                                         "syncrepl_entry: %s be_modrdn %s (%d)\n",
3083                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
3084                         op->o_bd = be;
3085                         /* Renamed entries may still have other mods so just fallthru */
3086                         op->o_req_dn = entry->e_name;
3087                         op->o_req_ndn = entry->e_nname;
3088                         /* Use CSN on the modify */
3089                         if ( just_rename )
3090                                 syncCSN = NULL;
3091                         else if ( syncCSN )
3092                                 slap_queue_csn( op, syncCSN );
3093                 }
3094                 if ( dni.mods ) {
3095                         SlapReply rs_modify = {REP_RESULT};
3096
3097                         op->o_tag = LDAP_REQ_MODIFY;
3098                         op->orm_modlist = dni.mods;
3099                         op->orm_no_opattrs = 1;
3100                         op->o_bd = si->si_wbe;
3101
3102                         rc = op->o_bd->be_modify( op, &rs_modify );
3103                         slap_mods_free( op->orm_modlist, 1 );
3104                         op->orm_no_opattrs = 0;
3105                         Debug( LDAP_DEBUG_SYNC,
3106                                         "syncrepl_entry: %s be_modify %s (%d)\n",
3107                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
3108                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
3109                                 Debug( LDAP_DEBUG_ANY,
3110                                         "syncrepl_entry: %s be_modify failed (%d)\n",
3111                                         si->si_ridtxt, rs_modify.sr_err, 0 );
3112                         }
3113                         syncCSN = NULL;
3114                         op->o_bd = be;
3115                 } else if ( !dni.renamed ) {
3116                         Debug( LDAP_DEBUG_SYNC,
3117                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
3118                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
3119                         if ( syncCSN ) {
3120                                 slap_graduate_commit_csn( op );
3121                                 syncCSN = NULL;
3122                         }
3123                 }
3124                 goto done;
3125         case LDAP_SYNC_DELETE :
3126                 if ( !BER_BVISNULL( &dni.dn ) ) {
3127                         SlapReply       rs_delete = {REP_RESULT};
3128                         op->o_req_dn = dni.dn;
3129                         op->o_req_ndn = dni.ndn;
3130                         op->o_tag = LDAP_REQ_DELETE;
3131                         op->o_bd = si->si_wbe;
3132                         rc = op->o_bd->be_delete( op, &rs_delete );
3133                         Debug( LDAP_DEBUG_SYNC,
3134                                         "syncrepl_entry: %s be_delete %s (%d)\n",
3135                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
3136
3137                         while ( rs_delete.sr_err == LDAP_SUCCESS
3138                                 && op->o_delete_glue_parent ) {
3139                                 op->o_delete_glue_parent = 0;
3140                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
3141                                         slap_callback cb = { NULL };
3142                                         cb.sc_response = slap_null_cb;
3143                                         dnParent( &op->o_req_ndn, &pdn );
3144                                         op->o_req_dn = pdn;
3145                                         op->o_req_ndn = pdn;
3146                                         op->o_callback = &cb;
3147                                         rs_reinit( &rs_delete, REP_RESULT );
3148                                         op->o_bd->be_delete( op, &rs_delete );
3149                                 } else {
3150                                         break;
3151                                 }
3152                         }
3153                         syncCSN = NULL;
3154                         op->o_bd = be;
3155                 }
3156                 goto done;
3157
3158         default :
3159                 Debug( LDAP_DEBUG_ANY,
3160                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
3161                 goto done;
3162         }
3163
3164 done:
3165         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
3166                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
3167                 BER_BVZERO( &syncUUID_strrep );
3168         }
3169         if ( !BER_BVISNULL( &dni.ndn ) ) {
3170                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
3171         }
3172         if ( !BER_BVISNULL( &dni.dn ) ) {
3173                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
3174         }
3175         if ( entry ) {
3176                 entry_free( entry );
3177         }
3178         if ( syncCSN ) {
3179                 slap_graduate_commit_csn( op );
3180         }
3181         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
3182                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3183         }
3184         BER_BVZERO( &op->o_csn );
3185         return rc;
3186 }
3187
3188 static struct berval gcbva[] = {
3189         BER_BVC("top"),
3190         BER_BVC("glue"),
3191         BER_BVNULL
3192 };
3193
3194 #define NP_DELETE_ONE   2
3195
3196 static void
3197 syncrepl_del_nonpresent(
3198         Operation *op,
3199         syncinfo_t *si,
3200         BerVarray uuids,
3201         struct sync_cookie *sc,
3202         int m )
3203 {
3204         Backend* be = op->o_bd;
3205         slap_callback   cb = { NULL };
3206         struct nonpresent_entry *np_list, *np_prev;
3207         int rc;
3208         AttributeName   an[2];
3209
3210         struct berval pdn = BER_BVNULL;
3211         struct berval csn;
3212
3213 #ifdef ENABLE_REWRITE
3214         if ( si->si_rewrite ) {
3215                 op->o_req_dn = si->si_suffixm;
3216                 op->o_req_ndn = si->si_suffixm;
3217         } else
3218 #endif
3219         {
3220                 op->o_req_dn = si->si_base;
3221                 op->o_req_ndn = si->si_base;
3222         }
3223
3224         cb.sc_response = nonpresent_callback;
3225         cb.sc_private = si;
3226
3227         op->o_callback = &cb;
3228         op->o_tag = LDAP_REQ_SEARCH;
3229         op->ors_scope = si->si_scope;
3230         op->ors_deref = LDAP_DEREF_NEVER;
3231         op->o_time = slap_get_time();
3232         op->ors_tlimit = SLAP_NO_LIMIT;
3233
3234
3235         if ( uuids ) {
3236                 Filter uf;
3237                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
3238                 int i;
3239
3240                 op->ors_attrsonly = 1;
3241                 op->ors_attrs = slap_anlist_no_attrs;
3242                 op->ors_limit = NULL;
3243                 op->ors_filter = &uf;
3244
3245                 uf.f_ava = &eq;
3246                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
3247                 uf.f_next = NULL;
3248                 uf.f_choice = LDAP_FILTER_EQUALITY;
3249                 si->si_refreshDelete |= NP_DELETE_ONE;
3250
3251                 for (i=0; uuids[i].bv_val; i++) {
3252                         SlapReply rs_search = {REP_RESULT};
3253
3254                         op->ors_slimit = 1;
3255                         uf.f_av_value = uuids[i];
3256                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
3257                         rc = be->be_search( op, &rs_search );
3258                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
3259                 }
3260                 si->si_refreshDelete ^= NP_DELETE_ONE;
3261         } else {
3262                 Filter *cf, *of;
3263                 Filter mmf[2];
3264                 AttributeAssertion mmaa;
3265                 SlapReply rs_search = {REP_RESULT};
3266
3267                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
3268                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
3269                 an[0].an_desc = slap_schema.si_ad_entryUUID;
3270                 op->ors_attrs = an;
3271                 op->ors_slimit = SLAP_NO_LIMIT;
3272                 op->ors_tlimit = SLAP_NO_LIMIT;
3273                 op->ors_limit = NULL;
3274                 op->ors_attrsonly = 0;
3275                 op->ors_filter = filter_dup( si->si_filter, op->o_tmpmemctx );
3276                 /* In multimaster, updates can continue to arrive while
3277                  * we're searching. Limit the search result to entries
3278                  * older than our newest cookie CSN.
3279                  */
3280                 if ( SLAP_MULTIMASTER( op->o_bd )) {
3281                         Filter *f;
3282                         int i;
3283
3284                         f = mmf;
3285                         f->f_choice = LDAP_FILTER_AND;
3286                         f->f_next = op->ors_filter;
3287                         f->f_and = f+1;
3288                         of = f->f_and;
3289                         f = of;
3290                         f->f_choice = LDAP_FILTER_LE;
3291                         f->f_ava = &mmaa;
3292                         f->f_av_desc = slap_schema.si_ad_entryCSN;
3293                         f->f_next = NULL;
3294                         BER_BVZERO( &f->f_av_value );
3295                         for ( i=0; i<sc->numcsns; i++ ) {
3296                                 if ( ber_bvcmp( &sc->ctxcsn[i], &f->f_av_value ) > 0 )
3297                                         f->f_av_value = sc->ctxcsn[i];
3298                         }
3299                         of = op->ors_filter;
3300                         op->ors_filter = mmf;
3301                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
3302                 } else {
3303                         cf = NULL;
3304                         op->ors_filterstr = si->si_filterstr;
3305                 }
3306                 op->o_nocaching = 1;
3307
3308
3309                 rc = be->be_search( op, &rs_search );
3310                 if ( SLAP_MULTIMASTER( op->o_bd )) {
3311                         op->ors_filter = of;
3312                 }
3313                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter, 1 );
3314                 if ( op->ors_filterstr.bv_val != si->si_filterstr.bv_val ) {
3315                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
3316                 }
3317
3318         }
3319
3320         op->o_nocaching = 0;
3321
3322         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
3323
3324                 if ( sc->ctxcsn && !BER_BVISNULL( &sc->ctxcsn[m] ) ) {
3325                         csn = sc->ctxcsn[m];
3326                 } else {
3327                         csn = si->si_syncCookie.ctxcsn[0];
3328                 }
3329
3330                 op->o_bd = si->si_wbe;
3331                 slap_queue_csn( op, &csn );
3332
3333                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
3334                 while ( np_list != NULL ) {
3335                         SlapReply rs_delete = {REP_RESULT};
3336
3337                         LDAP_LIST_REMOVE( np_list, npe_link );
3338                         np_prev = np_list;
3339                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
3340                         op->o_tag = LDAP_REQ_DELETE;
3341                         op->o_callback = &cb;
3342                         cb.sc_response = null_callback;
3343                         cb.sc_private = si;
3344                         op->o_req_dn = *np_prev->npe_name;
3345                         op->o_req_ndn = *np_prev->npe_nname;
3346                         rc = op->o_bd->be_delete( op, &rs_delete );
3347                         Debug( LDAP_DEBUG_SYNC,
3348                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
3349                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
3350
3351                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
3352                                 SlapReply rs_modify = {REP_RESULT};
3353                                 Modifications mod1, mod2;
3354                                 mod1.sml_op = LDAP_MOD_REPLACE;
3355                                 mod1.sml_flags = 0;
3356                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
3357                                 mod1.sml_type = mod1.sml_desc->ad_cname;
3358                                 mod1.sml_numvals = 2;
3359                                 mod1.sml_values = &gcbva[0];
3360                                 mod1.sml_nvalues = NULL;
3361                                 mod1.sml_next = &mod2;
3362
3363                                 mod2.sml_op = LDAP_MOD_REPLACE;
3364                                 mod2.sml_flags = 0;
3365                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
3366                                 mod2.sml_type = mod2.sml_desc->ad_cname;
3367                                 mod2.sml_numvals = 1;
3368                                 mod2.sml_values = &gcbva[1];
3369                                 mod2.sml_nvalues = NULL;
3370                                 mod2.sml_next = NULL;
3371
3372                                 op->o_tag = LDAP_REQ_MODIFY;
3373                                 op->orm_modlist = &mod1;
3374
3375                                 rc = op->o_bd->be_modify( op, &rs_modify );
3376                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
3377                         }
3378
3379                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
3380                                         op->o_delete_glue_parent ) {
3381                                 op->o_delete_glue_parent = 0;
3382                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
3383                                         slap_callback cb = { NULL };
3384                                         cb.sc_response = slap_null_cb;
3385                                         dnParent( &op->o_req_ndn, &pdn );
3386                                         op->o_req_dn = pdn;
3387                                         op->o_req_ndn = pdn;
3388                                         op->o_callback = &cb;
3389                                         rs_reinit( &rs_delete, REP_RESULT );
3390                                         /* give it a root privil ? */
3391                                         op->o_bd->be_delete( op, &rs_delete );
3392                                 } else {
3393                                         break;
3394                                 }
3395                         }
3396
3397                         op->o_delete_glue_parent = 0;
3398
3399                         ber_bvfree( np_prev->npe_name );
3400                         ber_bvfree( np_prev->npe_nname );
3401                         ch_free( np_prev );
3402
3403                         if ( slapd_shutdown ) {
3404                                 break;
3405                         }
3406                 }
3407
3408                 slap_graduate_commit_csn( op );
3409                 op->o_bd = be;
3410
3411                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3412                 BER_BVZERO( &op->o_csn );
3413         }
3414
3415         return;
3416 }
3417
3418 static int
3419 syncrepl_add_glue_ancestors(
3420         Operation* op,
3421         Entry *e )
3422 {
3423         Backend *be = op->o_bd;
3424         slap_callback cb = { NULL };
3425         Attribute       *a;
3426         int     rc = LDAP_SUCCESS;
3427         int suffrdns;
3428         int i;
3429         struct berval dn = BER_BVNULL;
3430         struct berval ndn = BER_BVNULL;
3431         Entry   *glue;
3432         struct berval   ptr, nptr;
3433         char            *comma;
3434
3435         op->o_tag = LDAP_REQ_ADD;
3436         op->o_callback = &cb;
3437         cb.sc_response = null_callback;
3438         cb.sc_private = NULL;
3439
3440         dn = e->e_name;
3441         ndn = e->e_nname;
3442
3443         /* count RDNs in suffix */
3444         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
3445                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
3446                         comma++;
3447                         ptr.bv_len -= comma - ptr.bv_val;
3448                         ptr.bv_val = comma;
3449                         i++;
3450                 }
3451                 suffrdns = i;
3452         } else {
3453                 /* suffix is "" */
3454                 suffrdns = 0;
3455         }
3456
3457         /* Start with BE suffix */
3458         ptr = dn;
3459         for ( i = 0; i < suffrdns; i++ ) {
3460                 comma = ber_bvrchr( &ptr, ',' );
3461                 if ( comma != NULL ) {
3462                         ptr.bv_len = comma - ptr.bv_val;
3463                 } else {
3464                         ptr.bv_len = 0;
3465                         break;
3466                 }
3467         }
3468
3469         if ( !BER_BVISEMPTY( &ptr ) ) {
3470                 dn.bv_len -= ptr.bv_len + 1;
3471                 dn.bv_val += ptr.bv_len + 1;
3472         }
3473
3474         /* the normalizedDNs are always the same length, no counting
3475          * required.
3476          */
3477         nptr = ndn;
3478         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
3479                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
3480                 ndn.bv_len = be->be_nsuffix[0].bv_len;
3481
3482                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
3483
3484         } else {
3485                 nptr.bv_len = 0;
3486         }
3487
3488         while ( ndn.bv_val > e->e_nname.bv_val ) {
3489                 SlapReply       rs_add = {REP_RESULT};
3490
3491                 glue = entry_alloc();
3492                 ber_dupbv( &glue->e_name, &dn );
3493                 ber_dupbv( &glue->e_nname, &ndn );
3494
3495                 a = attr_alloc( slap_schema.si_ad_objectClass );
3496
3497                 a->a_numvals = 2;
3498                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
3499                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
3500                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
3501                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
3502
3503                 a->a_nvals = a->a_vals;
3504
3505                 a->a_next = glue->e_attrs;
3506                 glue->e_attrs = a;
3507
3508                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
3509
3510                 a->a_numvals = 1;
3511                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
3512                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
3513                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
3514
3515                 a->a_nvals = a->a_vals;
3516
3517                 a->a_next = glue->e_attrs;
3518                 glue->e_attrs = a;
3519
3520                 op->o_req_dn = glue->e_name;
3521                 op->o_req_ndn = glue->e_nname;
3522                 op->ora_e = glue;
3523                 rc = be->be_add ( op, &rs_add );
3524                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
3525                         if ( op->ora_e == glue )
3526                                 be_entry_release_w( op, glue );
3527                 } else {
3528                 /* incl. ALREADY EXIST */
3529                         entry_free( glue );
3530                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
3531                                 entry_free( e );
3532                                 return rc;
3533                         }
3534                 }
3535
3536                 /* Move to next child */
3537                 comma = ber_bvrchr( &ptr, ',' );
3538                 if ( comma == NULL ) {
3539                         break;
3540                 }
3541                 ptr.bv_len = comma - ptr.bv_val;
3542
3543                 dn.bv_val = ++comma;
3544                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
3545
3546                 comma = ber_bvrchr( &nptr, ',' );
3547                 assert( comma != NULL );
3548                 nptr.bv_len = comma - nptr.bv_val;
3549
3550                 ndn.bv_val = ++comma;
3551                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
3552         }
3553
3554         return rc;
3555 }
3556
3557 int
3558 syncrepl_add_glue(
3559         Operation* op,
3560         Entry *e )
3561 {
3562         slap_callback cb = { NULL };
3563         int     rc;
3564         Backend *be = op->o_bd;
3565         SlapReply       rs_add = {REP_RESULT};
3566
3567         rc = syncrepl_add_glue_ancestors( op, e );
3568         switch ( rc ) {
3569         case LDAP_SUCCESS:
3570         case LDAP_ALREADY_EXISTS:
3571                 break;
3572
3573         default:
3574                 return rc;
3575         }
3576
3577         op->o_tag = LDAP_REQ_ADD;
3578         op->o_callback = &cb;
3579         cb.sc_response = null_callback;
3580         cb.sc_private = NULL;
3581
3582         op->o_req_dn = e->e_name;
3583         op->o_req_ndn = e->e_nname;
3584         op->ora_e = e;
3585         rc = be->be_add ( op, &rs_add );
3586         if ( rs_add.sr_err == LDAP_SUCCESS ) {
3587                 if ( op->ora_e == e )
3588                         be_entry_release_w( op, e );
3589         } else {
3590                 entry_free( e );
3591         }
3592
3593         return rc;
3594 }
3595
3596 static int
3597 syncrepl_updateCookie(
3598         syncinfo_t *si,
3599         Operation *op,
3600         struct sync_cookie *syncCookie )
3601 {
3602         Backend *be = op->o_bd;
3603         Modifications mod;
3604         struct berval first = BER_BVNULL;
3605 #ifdef CHECK_CSN
3606         Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
3607 #endif
3608
3609         int rc, i, j, changed = 0;
3610         ber_len_t len;
3611
3612         slap_callback cb = { NULL };
3613         SlapReply       rs_modify = {REP_RESULT};
3614
3615         mod.sml_op = LDAP_MOD_REPLACE;
3616         mod.sml_desc = slap_schema.si_ad_contextCSN;
3617         mod.sml_type = mod.sml_desc->ad_cname;
3618         mod.sml_flags = SLAP_MOD_INTERNAL;
3619         mod.sml_nvalues = NULL;
3620         mod.sml_next = NULL;
3621
3622         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
3623
3624 #ifdef CHECK_CSN
3625         for ( i=0; i<syncCookie->numcsns; i++ ) {
3626                 assert( !syn->ssyn_validate( syn, syncCookie->ctxcsn+i ));
3627         }
3628         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3629                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3630         }
3631 #endif
3632
3633         /* clone the cookieState CSNs so we can Replace the whole thing */
3634         mod.sml_numvals = si->si_cookieState->cs_num;
3635         mod.sml_values = op->o_tmpalloc(( mod.sml_numvals+1 )*sizeof(struct berval), op->o_tmpmemctx );
3636         for ( i=0; i<mod.sml_numvals; i++ )
3637                 mod.sml_values[i] = si->si_cookieState->cs_vals[i];
3638         BER_BVZERO( &mod.sml_values[i] );
3639
3640         /* find any CSNs in the syncCookie that are newer than the cookieState */
3641         for ( i=0; i<syncCookie->numcsns; i++ ) {
3642                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
3643                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
3644                                 continue;
3645                         len = syncCookie->ctxcsn[i].bv_len;
3646                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
3647                                 len = si->si_cookieState->cs_vals[j].bv_len;
3648                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
3649                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
3650                                 mod.sml_values[j] = syncCookie->ctxcsn[i];
3651                                 changed = 1;
3652                                 if ( BER_BVISNULL( &first ) ) {
3653                                         first = syncCookie->ctxcsn[i];
3654
3655                                 } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3656                                 {
3657                                         first = syncCookie->ctxcsn[i];
3658                                 }
3659                         }
3660                         break;
3661                 }
3662                 /* there was no match for this SID, it's a new CSN */
3663                 if ( j == si->si_cookieState->cs_num ) {
3664                         mod.sml_values = op->o_tmprealloc( mod.sml_values,
3665                                 ( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
3666                         mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
3667                         BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
3668                         if ( BER_BVISNULL( &first ) ) {
3669                                 first = syncCookie->ctxcsn[i];
3670                         } else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
3671                         {
3672                                 first = syncCookie->ctxcsn[i];
3673                         }
3674                         changed = 1;
3675                 }
3676         }
3677         /* Should never happen, ITS#5065 */
3678         if ( BER_BVISNULL( &first ) || !changed ) {
3679                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3680                 op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3681                 return 0;
3682         }
3683         op->o_bd = si->si_wbe;
3684         slap_queue_csn( op, &first );
3685
3686         op->o_tag = LDAP_REQ_MODIFY;
3687
3688         cb.sc_response = null_callback;
3689         cb.sc_private = si;
3690
3691         op->o_callback = &cb;
3692         op->o_req_dn = si->si_contextdn;
3693         op->o_req_ndn = si->si_contextdn;
3694
3695         /* update contextCSN */
3696         op->o_dont_replicate = 1;
3697
3698         op->orm_modlist = &mod;
3699         op->orm_no_opattrs = 1;
3700         rc = op->o_bd->be_modify( op, &rs_modify );
3701
3702         if ( rs_modify.sr_err == LDAP_NO_SUCH_OBJECT &&
3703                 SLAP_SYNC_SUBENTRY( op->o_bd )) {
3704                 const char      *text;
3705                 char txtbuf[SLAP_TEXT_BUFLEN];
3706                 size_t textlen = sizeof txtbuf;
3707                 Entry *e = slap_create_context_csn_entry( op->o_bd, NULL );
3708                 rs_reinit( &rs_modify, REP_RESULT );
3709                 rc = slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
3710                 op->ora_e = e;
3711                 rc = op->o_bd->be_add( op, &rs_modify );
3712                 if ( e == op->ora_e )
3713                         be_entry_release_w( op, op->ora_e );
3714         }
3715
3716         op->orm_no_opattrs = 0;
3717         op->o_dont_replicate = 0;
3718
3719         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
3720                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
3721                 /* If we replaced any old values */
3722                 for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3723                         if ( mod.sml_values[i].bv_val != si->si_cookieState->cs_vals[i].bv_val )
3724                                         ber_bvreplace( &si->si_cookieState->cs_vals[i],
3725                                                 &mod.sml_values[i] );
3726                 }
3727                 /* Handle any added values */
3728                 if ( i < mod.sml_numvals ) {
3729                         si->si_cookieState->cs_num = mod.sml_numvals;
3730                         value_add( &si->si_cookieState->cs_vals, &mod.sml_values[i] );
3731                         free( si->si_cookieState->cs_sids );
3732                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
3733                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
3734                 }
3735
3736                 /* Don't just dup the provider's cookie, recreate it */
3737                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
3738                 ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn, si->si_cookieState->cs_vals, NULL );
3739                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num * sizeof(int) );
3740                 for ( i=0; i<si->si_cookieState->cs_num; i++ )
3741                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
3742
3743                 si->si_cookieState->cs_age++;
3744                 si->si_cookieAge = si->si_cookieState->cs_age;
3745         } else {
3746                 Debug( LDAP_DEBUG_ANY,
3747                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
3748                         si->si_ridtxt, rs_modify.sr_err, 0 );
3749         }
3750         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
3751
3752         op->o_bd = be;
3753         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
3754         BER_BVZERO( &op->o_csn );
3755         if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
3756         op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
3757
3758 #ifdef CHECK_CSN
3759         for ( i=0; i<si->si_cookieState->cs_num; i++ ) {
3760                 assert( !syn->ssyn_validate( syn, si->si_cookieState->cs_vals+i ));
3761         }
3762 #endif
3763
3764         return rc;
3765 }
3766
3767 /* Compare the attribute from the old entry to the one in the new
3768  * entry. The Modifications from the new entry will either be left
3769  * in place, or changed to an Add or Delete as needed.
3770  */
3771 static void
3772 attr_cmp( Operation *op, Attribute *old, Attribute *new,
3773         Modifications ***mret, Modifications ***mcur )
3774 {
3775         int i, j;
3776         Modifications *mod, **modtail;
3777
3778         modtail = *mret;
3779
3780         if ( old ) {
3781                 int n, o, nn, no;
3782                 struct berval **adds, **dels;
3783                 /* count old and new */
3784                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
3785                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
3786
3787                 /* there MUST be both old and new values */
3788                 assert( o != 0 );
3789                 assert( n != 0 );
3790                 j = 0;
3791
3792                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
3793                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
3794
3795                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
3796                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
3797
3798                 nn = n; no = o;
3799
3800                 for ( i=0; i<o; i++ ) {
3801                         for ( j=0; j<n; j++ ) {
3802                                 if ( !adds[j] )
3803                                         continue;
3804                                 if ( bvmatch( dels[i], adds[j] ) ) {
3805                                         no--;
3806                                         nn--;
3807                                         adds[j] = NULL;
3808                                         dels[i] = NULL;
3809                                         break;
3810                                 }
3811                         }
3812                 }
3813
3814                 /* Don't delete/add an objectClass, always use the replace op.
3815                  * Modify would fail if provider has replaced entry with a new,
3816                  * and the new explicitly includes a superior of a class that was
3817                  * only included implicitly in the old entry.  Ref ITS#5517.
3818                  *
3819                  * Also use replace op if attr has no equality matching rule.
3820                  * (ITS#5781)
3821                  */
3822                 if ( ( nn || ( no > 0 && no < o ) ) &&
3823                         ( old->a_desc == slap_schema.si_ad_objectClass ||
3824                          !old->a_desc->ad_type->sat_equality ) )
3825                 {
3826                         no = o;
3827                 }
3828
3829                 i = j;
3830                 /* all old values were deleted, just use the replace op */
3831                 if ( no == o ) {
3832                         i = j-1;
3833                 } else if ( no ) {
3834                 /* delete some values */
3835                         mod = ch_malloc( sizeof( Modifications ) );
3836                         mod->sml_op = LDAP_MOD_DELETE;
3837                         mod->sml_flags = 0;
3838                         mod->sml_desc = old->a_desc;
3839                         mod->sml_type = mod->sml_desc->ad_cname;
3840                         mod->sml_numvals = no;
3841                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3842                         if ( old->a_vals != old->a_nvals ) {
3843                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
3844                         } else {
3845                                 mod->sml_nvalues = NULL;
3846                         }
3847                         j = 0;
3848                         for ( i = 0; i < o; i++ ) {
3849                                 if ( !dels[i] ) continue;
3850                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
3851                                 if ( mod->sml_nvalues ) {
3852                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
3853                                 }
3854                                 j++;
3855                         }
3856                         BER_BVZERO( &mod->sml_values[j] );
3857                         if ( mod->sml_nvalues ) {
3858                                 BER_BVZERO( &mod->sml_nvalues[j] );
3859                         }
3860                         *modtail = mod;
3861                         modtail = &mod->sml_next;
3862                         i = j;
3863                 }
3864                 op->o_tmpfree( dels, op->o_tmpmemctx );
3865                 /* some values were added */
3866                 if ( nn && no < o ) {
3867                         mod = ch_malloc( sizeof( Modifications ) );
3868                         mod->sml_op = LDAP_MOD_ADD;
3869                         mod->sml_flags = 0;
3870                         mod->sml_desc = old->a_desc;
3871                         mod->sml_type = mod->sml_desc->ad_cname;
3872                         mod->sml_numvals = nn;
3873                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3874                         if ( old->a_vals != old->a_nvals ) {
3875                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
3876                         } else {
3877                                 mod->sml_nvalues = NULL;
3878                         }
3879                         j = 0;
3880                         for ( i = 0; i < n; i++ ) {
3881                                 if ( !adds[i] ) continue;
3882                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
3883                                 if ( mod->sml_nvalues ) {
3884                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
3885                                 }
3886                                 j++;
3887                         }
3888                         BER_BVZERO( &mod->sml_values[j] );
3889                         if ( mod->sml_nvalues ) {
3890                                 BER_BVZERO( &mod->sml_nvalues[j] );
3891                         }
3892                         *modtail = mod;
3893                         modtail = &mod->sml_next;
3894                         i = j;
3895                 }
3896                 op->o_tmpfree( adds, op->o_tmpmemctx );
3897         } else {
3898                 /* new attr, just use the new mod */
3899                 i = 0;
3900                 j = 1;
3901         }
3902         /* advance to next element */
3903         mod = **mcur;
3904         if ( mod ) {
3905                 if ( i != j ) {
3906                         **mcur = mod->sml_next;
3907                         *modtail = mod;
3908                         modtail = &mod->sml_next;
3909                 } else {
3910                         *mcur = &mod->sml_next;
3911                 }
3912         }
3913         *mret = modtail;
3914 }
3915
3916 /* Generate a set of modifications to change the old entry into the
3917  * new one. On input ml is a list of modifications equivalent to
3918  * the new entry. It will be massaged and the result will be stored
3919  * in mods.
3920  */
3921 void syncrepl_diff_entry( Operation *op, Attribute *old, Attribute *new,
3922         Modifications **mods, Modifications **ml, int is_ctx)
3923 {
3924         Modifications **modtail = mods;
3925
3926         /* We assume that attributes are saved in the same order
3927          * in the remote and local databases. So if we walk through
3928          * the attributeDescriptions one by one they should match in
3929          * lock step. If not, look for an add or delete.
3930          */
3931         while ( old && new )
3932         {
3933                 /* If we've seen this before, use its mod now */
3934                 if ( new->a_flags & SLAP_ATTR_IXADD ) {
3935                         attr_cmp( op, NULL, new, &modtail, &ml );
3936                         new = new->a_next;
3937                         continue;
3938                 }
3939                 /* Skip contextCSN */
3940                 if ( is_ctx && old->a_desc ==
3941                         slap_schema.si_ad_contextCSN ) {
3942                         old = old->a_next;
3943                         continue;
3944                 }
3945
3946                 if ( old->a_desc != new->a_desc ) {
3947                         Modifications *mod;
3948                         Attribute *tmp;
3949
3950                         /* If it's just been re-added later,
3951                          * remember that we've seen it.
3952                          */
3953                         tmp = attr_find( new, old->a_desc );
3954                         if ( tmp ) {
3955                                 tmp->a_flags |= SLAP_ATTR_IXADD;
3956                         } else {
3957                                 /* If it's a new attribute, pull it in.
3958                                  */
3959                                 tmp = attr_find( old, new->a_desc );
3960                                 if ( !tmp ) {
3961                                         attr_cmp( op, NULL, new, &modtail, &ml );
3962                                         new = new->a_next;
3963                                         continue;
3964                                 }
3965                                 /* Delete old attr */
3966                                 mod = ch_malloc( sizeof( Modifications ) );
3967                                 mod->sml_op = LDAP_MOD_DELETE;
3968                                 mod->sml_flags = 0;
3969                                 mod->sml_desc = old->a_desc;
3970                                 mod->sml_type = mod->sml_desc->ad_cname;
3971                                 mod->sml_numvals = 0;
3972                                 mod->sml_values = NULL;
3973                                 mod->sml_nvalues = NULL;
3974                                 *modtail = mod;
3975                                 modtail = &mod->sml_next;
3976                         }
3977                         old = old->a_next;
3978                         continue;
3979                 }
3980                 /* kludge - always update modifiersName so that it
3981                  * stays co-located with the other mod opattrs. But only
3982                  * if we know there are other valid mods.
3983                  */
3984                 if ( *mods && ( old->a_desc == slap_schema.si_ad_modifiersName ||
3985                         old->a_desc == slap_schema.si_ad_modifyTimestamp ))
3986                         attr_cmp( op, NULL, new, &modtail, &ml );
3987                 else
3988                         attr_cmp( op, old, new, &modtail, &ml );
3989                 new = new->a_next;
3990                 old = old->a_next;
3991         }
3992         *modtail = *ml;
3993         *ml = NULL;
3994 }
3995
3996 static int
3997 dn_callback(
3998         Operation*      op,
3999         SlapReply*      rs )
4000 {
4001         dninfo *dni = op->o_callback->sc_private;
4002
4003         if ( rs->sr_type == REP_SEARCH ) {
4004                 if ( !BER_BVISNULL( &dni->dn ) ) {
4005                         Debug( LDAP_DEBUG_ANY,
4006                                 "dn_callback : consistency error - "
4007                                 "entryUUID is not unique\n", 0, 0, 0 );
4008                 } else {
4009                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
4010                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
4011                         /* If there is a new entry, see if it differs from the old.
4012                          * We compare the non-normalized values so that cosmetic changes
4013                          * in the provider are always propagated.
4014                          */
4015                         if ( dni->new_entry ) {
4016                                 Attribute *old, *new;
4017                                 struct berval old_rdn, new_rdn;
4018                                 struct berval old_p, new_p;
4019                                 int is_ctx, new_sup = 0;
4020
4021                                 /* If old entry is not a glue entry, make sure new entry
4022                                  * is actually newer than old entry
4023                                  */
4024                                 if ( !is_entry_glue( rs->sr_entry )) {
4025                                         old = attr_find( rs->sr_entry->e_attrs,
4026                                                 slap_schema.si_ad_entryCSN );
4027                                         new = attr_find( dni->new_entry->e_attrs,
4028                                                 slap_schema.si_ad_entryCSN );
4029                                         if ( new && old ) {
4030                                                 int rc;
4031                                                 ber_len_t len = old->a_vals[0].bv_len;
4032                                                 if ( len > new->a_vals[0].bv_len )
4033                                                         len = new->a_vals[0].bv_len;
4034                                                 rc = memcmp( old->a_vals[0].bv_val,
4035                                                         new->a_vals[0].bv_val, len );
4036                                                 if ( rc > 0 ) {
4037                                                         Debug( LDAP_DEBUG_SYNC,
4038                                                                 "dn_callback : new entry is older than ours "
4039                                                                 "%s ours %s, new %s\n",
4040                                                                 rs->sr_entry->e_name.bv_val,
4041                                                                 old->a_vals[0].bv_val,
4042                                                                 new->a_vals[0].bv_val );
4043                                                         return LDAP_SUCCESS;
4044                                                 } else if ( rc == 0 ) {
4045                                                         Debug( LDAP_DEBUG_SYNC,
4046                                                                 "dn_callback : entries have identical CSN "
4047                                                                 "%s %s\n",
4048                                                                 rs->sr_entry->e_name.bv_val,
4049                                                                 old->a_vals[0].bv_val, 0 );
4050                                                         return LDAP_SUCCESS;
4051                                                 }
4052                                         }
4053                                 }
4054
4055                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
4056                                         &op->o_bd->be_nsuffix[0] );
4057
4058                                 /* Did the DN change?
4059                                  * case changes in the parent are ignored,
4060                                  * we only want to know if the RDN was
4061                                  * actually changed.
4062                                  */
4063                                 dnRdn( &rs->sr_entry->e_name, &old_rdn );
4064                                 dnRdn( &dni->new_entry->e_name, &new_rdn );
4065                                 dnParent( &rs->sr_entry->e_nname, &old_p );
4066                                 dnParent( &dni->new_entry->e_nname, &new_p );
4067
4068                                 new_sup = !dn_match( &old_p, &new_p );
4069                                 if ( !dn_match( &old_rdn, &new_rdn ) || new_sup )
4070                                 {
4071                                         struct berval oldRDN, oldVal;
4072                                         AttributeDescription *ad = NULL;
4073                                         int oldpos, newpos;
4074                                         Attribute *a;
4075
4076                                         dni->renamed = 1;
4077                                         if ( new_sup )
4078                                                 dni->nnewSup = new_p;
4079
4080                                         /* See if the oldRDN was deleted */
4081                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
4082                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
4083                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
4084                                                 oldRDN.bv_val );
4085                                         oldRDN.bv_len -= oldVal.bv_len + 1;
4086                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
4087                                         dni->oldDesc = ad;
4088                                         for ( oldpos=0, a=rs->sr_entry->e_attrs;
4089                                                 a && a->a_desc != ad; oldpos++, a=a->a_next );
4090                                         dni->oldNattr = a;
4091                                         for ( newpos=0, a=dni->new_entry->e_attrs;
4092                                                 a && a->a_desc != ad; newpos++, a=a->a_next );
4093                                         if ( !a || oldpos != newpos || attr_valfind( a,
4094                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
4095                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
4096                                                 SLAP_MR_VALUE_OF_SYNTAX,
4097                                                 &oldVal, NULL, op->o_tmpmemctx ) != LDAP_SUCCESS )
4098                                         {
4099                                                 dni->delOldRDN = 1;
4100                                         }
4101                                         /* Get the newRDN's desc */
4102                                         dnRdn( &dni->new_entry->e_nname, &oldRDN );
4103                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=');
4104                                         oldRDN.bv_len = oldVal.bv_val - oldRDN.bv_val;
4105                                         ad = NULL;
4106                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
4107                                         dni->newDesc = ad;
4108
4109                                         /* A ModDN has happened, but in Refresh mode other
4110                                          * changes may have occurred before we picked it up.
4111                                          * So fallthru to regular Modify processing.
4112                                          */
4113                                 }
4114
4115                                 syncrepl_diff_entry( op, rs->sr_entry->e_attrs,
4116                                         dni->new_entry->e_attrs, &dni->mods, dni->modlist,
4117                                         is_ctx );
4118                         }
4119                 }
4120         } else if ( rs->sr_type == REP_RESULT ) {
4121                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
4122                         Debug( LDAP_DEBUG_ANY,
4123                                 "dn_callback : consistency error - "
4124                                 "entryUUID is not unique\n", 0, 0, 0 );
4125                 }
4126         }
4127
4128         return LDAP_SUCCESS;
4129 }
4130
4131 static int
4132 nonpresent_callback(
4133         Operation*      op,
4134         SlapReply*      rs )
4135 {
4136         syncinfo_t *si = op->o_callback->sc_private;
4137         Attribute *a;
4138         int count = 0;
4139         struct berval* present_uuid = NULL;
4140         struct nonpresent_entry *np_entry;
4141
4142         if ( rs->sr_type == REP_RESULT ) {
4143                 count = avl_free( si->si_presentlist, ch_free );
4144                 si->si_presentlist = NULL;
4145
4146         } else if ( rs->sr_type == REP_SEARCH ) {
4147                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
4148                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
4149
4150                         if ( a ) {
4151                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
4152                                         syncuuid_cmp );
4153                         }
4154
4155                         if ( LogTest( LDAP_DEBUG_SYNC ) ) {
4156                                 char buf[sizeof("rid=999 non")];
4157
4158                                 snprintf( buf, sizeof(buf), "%s %s", si->si_ridtxt,
4159                                         present_uuid ? "" : "non" );
4160
4161                                 Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %spresent UUID %s, dn %s\n",
4162                                         buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
4163                         }
4164
4165                         if ( a == NULL ) return 0;
4166                 }
4167
4168                 if ( present_uuid == NULL ) {
4169                         np_entry = (struct nonpresent_entry *)
4170                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
4171                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
4172                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
4173                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
4174
4175                 } else {
4176                         avl_delete( &si->si_presentlist,
4177                                 &a->a_nvals[0], syncuuid_cmp );
4178                         ch_free( present_uuid );
4179                 }
4180         }
4181         return LDAP_SUCCESS;
4182 }
4183
4184 static int
4185 null_callback(
4186         Operation*      op,
4187         SlapReply*      rs )
4188 {
4189         if ( rs->sr_err != LDAP_SUCCESS &&
4190                 rs->sr_err != LDAP_REFERRAL &&
4191                 rs->sr_err != LDAP_ALREADY_EXISTS &&
4192                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
4193                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
4194         {
4195                 Debug( LDAP_DEBUG_ANY,
4196                         "null_callback : error code 0x%x\n",
4197                         rs->sr_err, 0, 0 );
4198         }
4199         return LDAP_SUCCESS;
4200 }
4201
4202 static struct berval *
4203 slap_uuidstr_from_normalized(
4204         struct berval* uuidstr,
4205         struct berval* normalized,
4206         void *ctx )
4207 {
4208 #if 0
4209         struct berval *new;
4210         unsigned char nibble;
4211         int i, d = 0;
4212
4213         if ( normalized == NULL ) return NULL;
4214         if ( normalized->bv_len != 16 ) return NULL;
4215
4216         if ( uuidstr ) {
4217                 new = uuidstr;
4218         } else {
4219                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
4220                 if ( new == NULL ) {
4221                         return NULL;
4222                 }
4223         }
4224
4225         new->bv_len = 36;
4226
4227         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
4228                 if ( new != uuidstr ) {
4229                         slap_sl_free( new, ctx );
4230                 }
4231                 return NULL;
4232         }
4233
4234         for ( i = 0; i < 16; i++ ) {
4235                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
4236                         new->bv_val[(i<<1)+d] = '-';
4237                         d += 1;
4238                 }
4239
4240                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
4241                 if ( nibble < 10 ) {
4242                         new->bv_val[(i<<1)+d] = nibble + '0';
4243                 } else {
4244                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
4245                 }
4246
4247                 nibble = (normalized->bv_val[i]) & 0xF;
4248                 if ( nibble < 10 ) {
4249                         new->bv_val[(i<<1)+d+1] = nibble + '0';
4250                 } else {
4251                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
4252                 }
4253         }
4254
4255         new->bv_val[new->bv_len] = '\0';
4256         return new;
4257 #endif
4258
4259         struct berval   *new;
4260         int             rc = 0;
4261
4262         if ( normalized == NULL ) return NULL;
4263         if ( normalized->bv_len != 16 ) return NULL;
4264
4265         if ( uuidstr ) {
4266                 new = uuidstr;
4267
4268         } else {
4269                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
4270                 if ( new == NULL ) {
4271                         return NULL;
4272                 }
4273         }
4274
4275         new->bv_len = 36;
4276
4277         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
4278                 rc = 1;
4279                 goto done;
4280         }
4281
4282         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
4283                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
4284
4285 done:;
4286         if ( rc == -1 ) {
4287                 if ( new != NULL ) {
4288                         if ( new->bv_val != NULL ) {
4289                                 slap_sl_free( new->bv_val, ctx );
4290                         }
4291
4292                         if ( new != uuidstr ) {
4293                                 slap_sl_free( new, ctx );
4294                         }
4295                 }
4296                 new = NULL;
4297
4298         } else {
4299                 new->bv_len = rc;
4300         }
4301
4302         return new;
4303 }
4304
4305 static int
4306 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
4307 {
4308         const struct berval *uuid1 = v_uuid1;
4309         const struct berval *uuid2 = v_uuid2;
4310         int rc = uuid1->bv_len - uuid2->bv_len;
4311         if ( rc ) return rc;
4312         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
4313 }
4314
4315 void
4316 syncinfo_free( syncinfo_t *sie, int free_all )
4317 {
4318         syncinfo_t *si_next;
4319
4320         Debug( LDAP_DEBUG_TRACE, "syncinfo_free: %s\n",
4321                 sie->si_ridtxt, 0, 0 );
4322
4323         do {
4324                 si_next = sie->si_next;
4325
4326                 if ( sie->si_ld ) {
4327                         if ( sie->si_conn ) {
4328                                 connection_client_stop( sie->si_conn );
4329                                 sie->si_conn = NULL;
4330                         }
4331                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
4332                 }
4333
4334                 if ( sie->si_re ) {
4335                         struct re_s             *re = sie->si_re;
4336                         sie->si_re = NULL;
4337
4338                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
4339                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
4340                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
4341                         ldap_pvt_runqueue_remove( &slapd_rq, re );
4342                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
4343                 }
4344
4345                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
4346
4347                 bindconf_free( &sie->si_bindconf );
4348
4349                 if ( sie->si_filterstr.bv_val ) {
4350                         ch_free( sie->si_filterstr.bv_val );
4351                 }
4352                 if ( sie->si_filter ) {
4353                         filter_free( sie->si_filter );
4354                 }
4355                 if ( sie->si_logfilterstr.bv_val ) {
4356                         ch_free( sie->si_logfilterstr.bv_val );
4357                 }
4358                 if ( sie->si_base.bv_val ) {
4359                         ch_free( sie->si_base.bv_val );
4360                 }
4361                 if ( sie->si_logbase.bv_val ) {
4362                         ch_free( sie->si_logbase.bv_val );
4363                 }
4364                 if ( sie->si_be && SLAP_SYNC_SUBENTRY( sie->si_be )) {
4365                         ch_free( sie->si_contextdn.bv_val );
4366                 }
4367                 if ( sie->si_attrs ) {
4368                         int i = 0;
4369                         while ( sie->si_attrs[i] != NULL ) {
4370                                 ch_free( sie->si_attrs[i] );
4371                                 i++;
4372                         }
4373                         ch_free( sie->si_attrs );
4374                 }
4375                 if ( sie->si_exattrs ) {
4376                         int i = 0;
4377                         while ( sie->si_exattrs[i] != NULL ) {
4378                                 ch_free( sie->si_exattrs[i] );
4379                                 i++;
4380                         }
4381                         ch_free( sie->si_exattrs );
4382                 }
4383                 if ( sie->si_anlist ) {
4384                         int i = 0;
4385                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
4386                                 ch_free( sie->si_anlist[i].an_name.bv_val );
4387                                 i++;
4388                         }
4389                         ch_free( sie->si_anlist );
4390                 }
4391                 if ( sie->si_exanlist ) {
4392                         int i = 0;
4393                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
4394                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
4395                                 i++;
4396                         }
4397                         ch_free( sie->si_exanlist );
4398                 }
4399                 if ( sie->si_retryinterval ) {
4400                         ch_free( sie->si_retryinterval );
4401                 }
4402                 if ( sie->si_retrynum ) {
4403                         ch_free( sie->si_retrynum );
4404                 }
4405                 if ( sie->si_retrynum_init ) {
4406                         ch_free( sie->si_retrynum_init );
4407                 }
4408                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
4409                 if ( sie->si_presentlist ) {
4410                     avl_free( sie->si_presentlist, ch_free );
4411                 }
4412                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
4413                         struct nonpresent_entry* npe;
4414                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
4415                         LDAP_LIST_REMOVE( npe, npe_link );
4416                         if ( npe->npe_name ) {
4417                                 if ( npe->npe_name->bv_val ) {
4418                                         ch_free( npe->npe_name->bv_val );
4419                                 }
4420                                 ch_free( npe->npe_name );
4421                         }
4422                         if ( npe->npe_nname ) {
4423                                 if ( npe->npe_nname->bv_val ) {
4424                                         ch_free( npe->npe_nname->bv_val );
4425                                 }
4426                                 ch_free( npe->npe_nname );
4427                         }
4428                         ch_free( npe );
4429                 }
4430                 if ( sie->si_cookieState ) {
4431                         sie->si_cookieState->cs_ref--;
4432                         if ( !sie->si_cookieState->cs_ref ) {
4433                                 ch_free( sie->si_cookieState->cs_sids );
4434                                 ber_bvarray_free( sie->si_cookieState->cs_vals );
4435                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
4436                                 ch_free( sie->si_cookieState->cs_psids );
4437                                 ber_bvarray_free( sie->si_cookieState->cs_pvals );
4438                                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_pmutex );
4439                                 ch_free( sie->si_cookieState );
4440                         }
4441                 }
4442 #ifdef ENABLE_REWRITE
4443                 if ( sie->si_rewrite )
4444                         rewrite_info_delete( &sie->si_rewrite );
4445                 if ( sie->si_suffixm.bv_val )
4446                         ch_free( sie->si_suffixm.bv_val );
4447 #endif
4448                 ch_free( sie );
4449                 sie = si_next;
4450         } while ( free_all && si_next );
4451 }
4452
4453 #ifdef ENABLE_REWRITE
4454 static int
4455 config_suffixm( ConfigArgs *c, syncinfo_t *si )
4456 {
4457         char *argvEngine[] = { "rewriteEngine", "on", NULL };
4458         char *argvContext[] = { "rewriteContext", SUFFIXM_CTX, NULL };
4459         char *argvRule[] = { "rewriteRule", NULL, NULL, ":", NULL };
4460         char *vnc, *rnc;
4461         int rc;
4462
4463         if ( si->si_rewrite )
4464                 rewrite_info_delete( &si->si_rewrite );
4465         si->si_rewrite = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
4466
4467         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvEngine );
4468         if ( rc != LDAP_SUCCESS )
4469                 return rc;
4470
4471         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 2, argvContext );
4472         if ( rc != LDAP_SUCCESS )
4473                 return rc;
4474
4475         vnc = ch_malloc( si->si_base.bv_len + 6 );
4476         strcpy( vnc, "(.*)" );
4477         lutil_strcopy( lutil_strcopy( vnc+4, si->si_base.bv_val ), "$" );
4478         argvRule[1] = vnc;
4479
4480         rnc = ch_malloc( si->si_suffixm.bv_len + 3 );
4481         strcpy( rnc, "%1" );
4482         strcpy( rnc+2, si->si_suffixm.bv_val );
4483         argvRule[2] = rnc;
4484
4485         rc = rewrite_parse( si->si_rewrite, c->fname, c->lineno, 4, argvRule );
4486         ch_free( vnc );
4487         ch_free( rnc );
4488         return rc;
4489 }
4490 #endif
4491
4492 /* NOTE: used & documented in slapd.conf(5) */
4493 #define IDSTR                   "rid"
4494 #define PROVIDERSTR             "provider"
4495 #define SCHEMASTR               "schemachecking"
4496 #define FILTERSTR               "filter"
4497 #define SEARCHBASESTR           "searchbase"
4498 #define SCOPESTR                "scope"
4499 #define ATTRSONLYSTR            "attrsonly"
4500 #define ATTRSSTR                "attrs"
4501 #define TYPESTR                 "type"
4502 #define INTERVALSTR             "interval"
4503 #define RETRYSTR                "retry"
4504 #define SLIMITSTR               "sizelimit"
4505 #define TLIMITSTR               "timelimit"
4506 #define SYNCDATASTR             "syncdata"
4507 #define LOGBASESTR              "logbase"
4508 #define LOGFILTERSTR    "logfilter"
4509 #define SUFFIXMSTR              "suffixmassage"
4510 #define STRICT_REFRESH  "strictrefresh"
4511
4512 /* FIXME: undocumented */
4513 #define EXATTRSSTR              "exattrs"
4514 #define MANAGEDSAITSTR          "manageDSAit"
4515
4516 /* mandatory */
4517 enum {
4518         GOT_RID                 = 0x00000001U,
4519         GOT_PROVIDER            = 0x00000002U,
4520         GOT_SCHEMACHECKING      = 0x00000004U,
4521         GOT_FILTER              = 0x00000008U,
4522         GOT_SEARCHBASE          = 0x00000010U,
4523         GOT_SCOPE               = 0x00000020U,
4524         GOT_ATTRSONLY           = 0x00000040U,
4525         GOT_ATTRS               = 0x00000080U,
4526         GOT_TYPE                = 0x00000100U,
4527         GOT_INTERVAL            = 0x00000200U,
4528         GOT_RETRY               = 0x00000400U,
4529         GOT_SLIMIT              = 0x00000800U,
4530         GOT_TLIMIT              = 0x00001000U,
4531         GOT_SYNCDATA            = 0x00002000U,
4532         GOT_LOGBASE             = 0x00004000U,
4533         GOT_LOGFILTER           = 0x00008000U,
4534         GOT_EXATTRS             = 0x00010000U,
4535         GOT_MANAGEDSAIT         = 0x00020000U,
4536         GOT_BINDCONF            = 0x00040000U,
4537         GOT_SUFFIXM             = 0x00080000U,
4538
4539 /* check */
4540         GOT_REQUIRED            = (GOT_RID|GOT_PROVIDER|GOT_SEARCHBASE)
4541 };
4542
4543 static slap_verbmasks datamodes[] = {
4544         { BER_BVC("default"), SYNCDATA_DEFAULT },
4545         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
4546         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
4547         { BER_BVNULL, 0 }
4548 };
4549
4550 static int
4551 parse_syncrepl_retry(
4552         ConfigArgs      *c,
4553         char            *arg,
4554         syncinfo_t      *si )
4555 {
4556         char **retry_list;
4557         int j, k, n;
4558         int use_default = 0;
4559
4560         char *val = arg + STRLENOF( RETRYSTR "=" );
4561         if ( strcasecmp( val, "undefined" ) == 0 ) {
4562                 val = "3600 +";
4563                 use_default = 1;
4564         }
4565
4566         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
4567         retry_list[0] = NULL;
4568
4569         slap_str2clist( &retry_list, val, " ,\t" );
4570
4571         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
4572         n = k / 2;
4573         if ( k % 2 ) {
4574                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4575                         "Error: incomplete syncrepl retry list" );
4576                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4577                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
4578                         ch_free( retry_list[k] );
4579                 }
4580                 ch_free( retry_list );
4581                 return 1;
4582         }
4583         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
4584         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
4585         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
4586         for ( j = 0; j < n; j++ ) {
4587                 unsigned long   t;
4588                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
4589                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4590                                 "Error: invalid retry interval \"%s\" (#%d)",
4591                                 retry_list[j*2], j );
4592                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4593                         /* do some cleanup */
4594                         return 1;
4595                 }
4596                 si->si_retryinterval[j] = (time_t)t;
4597                 if ( *retry_list[j*2+1] == '+' ) {
4598                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
4599                         si->si_retrynum[j] = RETRYNUM_FOREVER;
4600                         j++;
4601                         break;
4602                 } else {
4603                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
4604                                         || si->si_retrynum_init[j] <= 0 )
4605                         {
4606                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4607                                         "Error: invalid initial retry number \"%s\" (#%d)",
4608                                         retry_list[j*2+1], j );
4609                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4610                                 /* do some cleanup */
4611                                 return 1;
4612                         }
4613                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
4614                                         || si->si_retrynum[j] <= 0 )
4615                         {
4616                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4617                                         "Error: invalid retry number \"%s\" (#%d)",
4618                                         retry_list[j*2+1], j );
4619                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4620                                 /* do some cleanup */
4621                                 return 1;
4622                         }
4623                 }
4624         }
4625         if ( j < 1 || si->si_retrynum_init[j-1] != RETRYNUM_FOREVER ) {
4626                 Debug( LDAP_DEBUG_CONFIG,
4627                         "%s: syncrepl will eventually stop retrying; the \"retry\" parameter should end with a '+'.\n",
4628                         c->log, 0, 0 );
4629         }
4630
4631         si->si_retrynum_init[j] = RETRYNUM_TAIL;
4632         si->si_retrynum[j] = RETRYNUM_TAIL;
4633         si->si_retryinterval[j] = 0;
4634
4635         for ( k = 0; retry_list && retry_list[k]; k++ ) {
4636                 ch_free( retry_list[k] );
4637         }
4638         ch_free( retry_list );
4639         if ( !use_default ) {
4640                 si->si_got |= GOT_RETRY;
4641         }
4642
4643         return 0;
4644 }
4645
4646 static int
4647 parse_syncrepl_line(
4648         ConfigArgs      *c,
4649         syncinfo_t      *si )
4650 {
4651         int     i;
4652         char    *val;
4653
4654         for ( i = 1; i < c->argc; i++ ) {
4655                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
4656                                         STRLENOF( IDSTR "=" ) ) )
4657                 {
4658                         int tmp;
4659                         /* '\0' string terminator accounts for '=' */
4660                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
4661                         if ( lutil_atoi( &tmp, val ) != 0 ) {
4662                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4663                                         "Error: parse_syncrepl_line: "
4664                                         "unable to parse syncrepl id \"%s\"", val );
4665                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4666                                 return -1;
4667                         }
4668                         if ( tmp > SLAP_SYNC_RID_MAX || tmp < 0 ) {
4669                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4670                                         "Error: parse_syncrepl_line: "
4671                                         "syncrepl id %d is out of range [0..%d]", tmp, SLAP_SYNC_RID_MAX );
4672                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4673                                 return -1;
4674                         }
4675                         si->si_rid = tmp;
4676                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
4677                         si->si_got |= GOT_RID;
4678                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
4679                                         STRLENOF( PROVIDERSTR "=" ) ) )
4680                 {
4681                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
4682                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
4683 #ifdef HAVE_TLS
4684                         if ( ldap_is_ldaps_url( val ))
4685                                 si->si_bindconf.sb_tls_do_init = 1;
4686 #endif
4687                         si->si_got |= GOT_PROVIDER;
4688                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
4689                                         STRLENOF( SCHEMASTR "=" ) ) )
4690                 {
4691                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
4692                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
4693                                 si->si_schemachecking = 1;
4694                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
4695                                 si->si_schemachecking = 0;
4696                         } else {
4697                                 si->si_schemachecking = 1;
4698                         }
4699                         si->si_got |= GOT_SCHEMACHECKING;
4700                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
4701                                         STRLENOF( FILTERSTR "=" ) ) )
4702                 {
4703                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
4704                         if ( si->si_filterstr.bv_val )
4705                                 ch_free( si->si_filterstr.bv_val );
4706                         ber_str2bv( val, 0, 1, &si->si_filterstr );
4707                         si->si_got |= GOT_FILTER;
4708                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
4709                                         STRLENOF( LOGFILTERSTR "=" ) ) )
4710                 {
4711                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
4712                         if ( si->si_logfilterstr.bv_val )
4713                                 ch_free( si->si_logfilterstr.bv_val );
4714                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
4715                         si->si_got |= GOT_LOGFILTER;
4716                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
4717                                         STRLENOF( SEARCHBASESTR "=" ) ) )
4718                 {
4719                         struct berval   bv;
4720                         int             rc;
4721
4722                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
4723                         if ( si->si_base.bv_val ) {
4724                                 ch_free( si->si_base.bv_val );
4725                         }
4726                         ber_str2bv( val, 0, 0, &bv );
4727                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
4728                         if ( rc != LDAP_SUCCESS ) {
4729                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4730                                         "Invalid base DN \"%s\": %d (%s)",
4731                                         val, rc, ldap_err2string( rc ) );
4732                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4733                                 return -1;
4734                         }
4735                         si->si_got |= GOT_SEARCHBASE;
4736 #ifdef ENABLE_REWRITE
4737                 } else if ( !strncasecmp( c->argv[ i ], SUFFIXMSTR "=",
4738                                         STRLENOF( SUFFIXMSTR "=" ) ) )
4739                 {
4740                         struct berval   bv;
4741                         int             rc;
4742
4743                         val = c->argv[ i ] + STRLENOF( SUFFIXMSTR "=" );
4744                         if ( si->si_suffixm.bv_val ) {
4745                                 ch_free( si->si_suffixm.bv_val );
4746                         }
4747                         ber_str2bv( val, 0, 0, &bv );
4748                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_suffixm, NULL );
4749                         if ( rc != LDAP_SUCCESS ) {
4750                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4751                                         "Invalid massage DN \"%s\": %d (%s)",
4752                                         val, rc, ldap_err2string( rc ) );
4753                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4754                                 return -1;
4755                         }
4756                         if ( !be_issubordinate( c->be, &si->si_suffixm )) {
4757                                 ch_free( si->si_suffixm.bv_val );
4758                                 BER_BVZERO( &si->si_suffixm );
4759                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4760                                         "Massage DN \"%s\" is not within the database naming context",
4761                                         val );
4762                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4763                                 return -1;
4764                         }
4765                         si->si_got |= GOT_SUFFIXM;
4766 #endif
4767                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
4768                                         STRLENOF( LOGBASESTR "=" ) ) )
4769                 {
4770                         struct berval   bv;
4771                         int             rc;
4772
4773                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
4774                         if ( si->si_logbase.bv_val ) {
4775                                 ch_free( si->si_logbase.bv_val );
4776                         }
4777                         ber_str2bv( val, 0, 0, &bv );
4778                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
4779                         if ( rc != LDAP_SUCCESS ) {
4780                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4781                                         "Invalid logbase DN \"%s\": %d (%s)",
4782                                         val, rc, ldap_err2string( rc ) );
4783                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4784                                 return -1;
4785                         }
4786                         si->si_got |= GOT_LOGBASE;
4787                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
4788                                         STRLENOF( SCOPESTR "=" ) ) )
4789                 {
4790                         int j;
4791                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
4792                         j = ldap_pvt_str2scope( val );
4793                         if ( j < 0 ) {
4794                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4795                                         "Error: parse_syncrepl_line: "
4796                                         "unknown scope \"%s\"", val);
4797                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4798                                 return -1;
4799                         }
4800                         si->si_scope = j;
4801                         si->si_got |= GOT_SCOPE;
4802                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
4803                                         STRLENOF( ATTRSONLYSTR ) ) )
4804                 {
4805                         si->si_attrsonly = 1;
4806                         si->si_got |= GOT_ATTRSONLY;
4807                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
4808                                         STRLENOF( ATTRSSTR "=" ) ) )
4809                 {
4810                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
4811                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4812                                 char *attr_fname;
4813                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4814                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
4815                                 if ( si->si_anlist == NULL ) {
4816                                         ch_free( attr_fname );
4817                                         return -1;
4818                                 }
4819                                 si->si_anfile = attr_fname;
4820                         } else {
4821                                 char *str, *s, *next;
4822                                 const char *delimstr = " ,\t";
4823                                 str = ch_strdup( val );
4824                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
4825                                                 s != NULL;
4826                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
4827                                 {
4828                                         if ( strlen(s) == 1 && *s == '*' ) {
4829                                                 si->si_allattrs = 1;
4830                                                 val[ s - str ] = delimstr[0];
4831                                         }
4832                                         if ( strlen(s) == 1 && *s == '+' ) {
4833                                                 si->si_allopattrs = 1;
4834                                                 val [ s - str ] = delimstr[0];
4835                                         }
4836                                 }
4837                                 ch_free( str );
4838                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
4839                                 if ( si->si_anlist == NULL ) {
4840                                         return -1;
4841                                 }
4842                         }
4843                         si->si_got |= GOT_ATTRS;
4844                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
4845                                         STRLENOF( EXATTRSSTR "=" ) ) )
4846                 {
4847                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
4848                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
4849                                 char *attr_fname;
4850                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
4851                                 si->si_exanlist = file2anlist(
4852                                         si->si_exanlist, attr_fname, " ,\t" );
4853                                 if ( si->si_exanlist == NULL ) {
4854                                         ch_free( attr_fname );
4855                                         return -1;
4856                                 }
4857                                 ch_free( attr_fname );
4858                         } else {
4859                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
4860                                 if ( si->si_exanlist == NULL ) {
4861                                         return -1;
4862                                 }
4863                         }
4864                         si->si_got |= GOT_EXATTRS;
4865                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
4866                                         STRLENOF( TYPESTR "=" ) ) )
4867                 {
4868                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
4869                         if ( !strncasecmp( val, "refreshOnly",
4870                                                 STRLENOF("refreshOnly") ) )
4871                         {
4872                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
4873                         } else if ( !strncasecmp( val, "refreshAndPersist",
4874                                                 STRLENOF("refreshAndPersist") ) )
4875                         {
4876                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
4877                                 si->si_interval = 60;
4878                         } else {
4879                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4880                                         "Error: parse_syncrepl_line: "
4881                                         "unknown sync type \"%s\"", val);
4882                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4883                                 return -1;
4884                         }
4885                         si->si_got |= GOT_TYPE;
4886                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
4887                                         STRLENOF( INTERVALSTR "=" ) ) )
4888                 {
4889                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
4890                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
4891                                 si->si_interval = 0;
4892                         } else if ( strchr( val, ':' ) != NULL ) {
4893                                 char *next, *ptr = val;
4894                                 int dd, hh, mm, ss;
4895
4896                                 dd = strtol( ptr, &next, 10 );
4897                                 if ( next == ptr || next[0] != ':' || dd < 0 ) {
4898                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4899                                                 "Error: parse_syncrepl_line: "
4900                                                 "invalid interval \"%s\", unable to parse days", val );
4901                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4902                                         return -1;
4903                                 }
4904                                 ptr = next + 1;
4905                                 hh = strtol( ptr, &next, 10 );
4906                                 if ( next == ptr || next[0] != ':' || hh < 0 || hh > 24 ) {
4907                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4908                                                 "Error: parse_syncrepl_line: "
4909                                                 "invalid interval \"%s\", unable to parse hours", val );
4910                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4911                                         return -1;
4912                                 }
4913                                 ptr = next + 1;
4914                                 mm = strtol( ptr, &next, 10 );
4915                                 if ( next == ptr || next[0] != ':' || mm < 0 || mm > 60 ) {
4916                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4917                                                 "Error: parse_syncrepl_line: "
4918                                                 "invalid interval \"%s\", unable to parse minutes", val );
4919                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4920                                         return -1;
4921                                 }
4922                                 ptr = next + 1;
4923                                 ss = strtol( ptr, &next, 10 );
4924                                 if ( next == ptr || next[0] != '\0' || ss < 0 || ss > 60 ) {
4925                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4926                                                 "Error: parse_syncrepl_line: "
4927                                                 "invalid interval \"%s\", unable to parse seconds", val );
4928                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4929                                         return -1;
4930                                 }
4931                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
4932                         } else {
4933                                 unsigned long   t;
4934
4935                                 if ( lutil_parse_time( val, &t ) != 0 ) {
4936                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
4937                                                 "Error: parse_syncrepl_line: "
4938                                                 "invalid interval \"%s\"", val );
4939                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4940                                         return -1;
4941                                 }
4942                                 si->si_interval = (time_t)t;
4943                         }
4944                         if ( si->si_interval < 0 ) {
4945                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4946                                         "Error: parse_syncrepl_line: "
4947                                         "invalid interval \"%ld\"",
4948                                         (long) si->si_interval);
4949                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4950                                 return -1;
4951                         }
4952                         si->si_got |= GOT_INTERVAL;
4953                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
4954                                         STRLENOF( RETRYSTR "=" ) ) )
4955                 {
4956                         if ( parse_syncrepl_retry( c, c->argv[ i ], si ) ) {
4957                                 return 1;
4958                         }
4959                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
4960                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
4961                 {
4962                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
4963                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
4964                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
4965                         {
4966                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4967                                         "invalid manageDSAit value \"%s\".\n",
4968                                         val );
4969                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4970                                 return 1;
4971                         }
4972                         si->si_got |= GOT_MANAGEDSAIT;
4973                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
4974                                         STRLENOF( SLIMITSTR "=") ) )
4975                 {
4976                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
4977                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4978                                 si->si_slimit = 0;
4979
4980                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
4981                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4982                                         "invalid size limit value \"%s\".\n",
4983                                         val );
4984                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
4985                                 return 1;
4986                         }
4987                         si->si_got |= GOT_SLIMIT;
4988                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
4989                                         STRLENOF( TLIMITSTR "=" ) ) )
4990                 {
4991                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
4992                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
4993                                 si->si_tlimit = 0;
4994
4995                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
4996                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
4997                                         "invalid time limit value \"%s\".\n",
4998                                         val );
4999                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
5000                                 return 1;
5001                         }
5002                         si->si_got |= GOT_TLIMIT;
5003                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
5004                                         STRLENOF( SYNCDATASTR "=" ) ) )
5005                 {
5006                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
5007                         si->si_syncdata = verb_to_mask( val, datamodes );
5008                         si->si_got |= GOT_SYNCDATA;
5009                 } else if ( !strncasecmp( c->argv[ i ], STRICT_REFRESH,
5010                                         STRLENOF( STRICT_REFRESH ) ) )
5011                 {
5012                         si->si_strict_refresh = 1;
5013                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
5014                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
5015                                 "Error: parse_syncrepl_line: "
5016                                 "unable to parse \"%s\"\n", c->argv[ i ] );
5017                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
5018                         return -1;
5019                 }
5020                 si->si_got |= GOT_BINDCONF;
5021         }
5022
5023         if ( ( si->si_got & GOT_REQUIRED ) != GOT_REQUIRED ) {
5024                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
5025                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
5026                         si->si_got & GOT_RID ? "" : " "IDSTR,
5027                         si->si_got & GOT_PROVIDER ? "" : " "PROVIDERSTR,
5028                         si->si_got & GOT_SEARCHBASE ? "" : " "SEARCHBASESTR );
5029                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
5030                 return -1;
5031         }
5032
5033         if ( !be_issubordinate( c->be, &si->si_base ) && !( si->si_got & GOT_SUFFIXM )) {
5034                 ch_free( si->si_base.bv_val );
5035                 BER_BVZERO( &si->si_base );
5036                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
5037                         "Base DN \"%s\" is not within the database naming context",
5038                         val );
5039                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
5040                 return -1;
5041         }
5042
5043 #ifdef ENABLE_REWRITE
5044         if ( si->si_got & GOT_SUFFIXM ) {
5045                 if (config_suffixm( c, si )) {
5046                         ch_free( si->si_suffixm.bv_val );
5047                         BER_BVZERO( &si->si_suffixm );
5048                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
5049                                 "Error configuring rewrite engine" );
5050                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
5051                         return -1;
5052                 }
5053         }
5054 #endif
5055
5056         if ( !( si->si_got & GOT_RETRY ) ) {
5057                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": no retry defined, using default\n",
5058                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", 0 );
5059                 if ( si->si_retryinterval == NULL ) {
5060                         if ( parse_syncrepl_retry( c, "retry=undefined", si ) ) {
5061                                 return 1;
5062                         }
5063                 }
5064         }
5065
5066         si->si_filter = str2filter( si->si_filterstr.bv_val );
5067         if ( si->si_filter == NULL ) {
5068                 Debug( LDAP_DEBUG_ANY, "syncrepl %s " SEARCHBASESTR "=\"%s\": unable to parse filter=\"%s\"\n",
5069                         si->si_ridtxt, c->be->be_suffix ? c->be->be_suffix[ 0 ].bv_val : "(null)", si->si_filterstr.bv_val );
5070                 return 1;
5071         }
5072
5073         return 0;
5074 }
5075
5076 static int
5077 add_syncrepl(
5078         ConfigArgs *c )
5079 {
5080         syncinfo_t *si;
5081         int     rc = 0;
5082
5083         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
5084                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
5085                         "operations required for syncrepl", c->be->be_type );
5086                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
5087                 return 1;
5088         }
5089         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
5090                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
5091                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
5092                 return 1;
5093         }
5094         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
5095
5096         if ( si == NULL ) {
5097                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
5098                 return 1;
5099         }
5100
5101         si->si_bindconf.sb_tls = SB_TLS_OFF;
5102         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
5103         si->si_schemachecking = 0;
5104         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
5105                 &si->si_filterstr );
5106         si->si_base.bv_val = NULL;
5107         si->si_scope = LDAP_SCOPE_SUBTREE;
5108         si->si_attrsonly = 0;
5109         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
5110         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
5111         si->si_attrs = NULL;
5112         si->si_allattrs = 0;
5113         si->si_allopattrs = 0;
5114         si->si_exattrs = NULL;
5115         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
5116         si->si_interval = 86400;
5117         si->si_retryinterval = NULL;
5118         si->si_retrynum_init = NULL;
5119         si->si_retrynum = NULL;
5120         si->si_manageDSAit = 0;
5121         si->si_tlimit = 0;
5122         si->si_slimit = 0;
5123
5124         si->si_presentlist = NULL;
5125         LDAP_LIST_INIT( &si->si_nonpresentlist );
5126         ldap_pvt_thread_mutex_init( &si->si_mutex );
5127
5128         rc = parse_syncrepl_line( c, si );
5129
5130         if ( rc == 0 ) {
5131                 LDAPURLDesc *lud;
5132
5133                 /* Must be LDAPv3 because we need controls */
5134                 switch ( si->si_bindconf.sb_version ) {
5135                 case 0:
5136                         /* not explicitly set */
5137                         si->si_bindconf.sb_version = LDAP_VERSION3;
5138                         break;
5139                 case 3:
5140                         /* explicitly set */
5141                         break;
5142                 default:
5143                         Debug( LDAP_DEBUG_ANY,
5144                                 "version %d incompatible with syncrepl\n",
5145                                 si->si_bindconf.sb_version, 0, 0 );
5146                         syncinfo_free( si, 0 );
5147                         return 1;
5148                 }
5149
5150                 if ( ldap_url_parse( si->si_bindconf.sb_uri.bv_val, &lud )) {
5151                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
5152                                 "<%s> invalid URL", c->argv[0] );
5153                         Debug( LDAP_DEBUG_ANY, "%s: %s %s\n",
5154                                 c->log, c->cr_msg, si->si_bindconf.sb_uri.bv_val );
5155                         return 1;
5156                 }
5157
5158                 si->si_be = c->be;
5159                 if ( slapMode & SLAP_SERVER_MODE ) {
5160                         int isMe = 0;
5161                         /* check if consumer points to current server and database.
5162                          * If so, ignore this configuration.
5163                          */
5164                         if ( !SLAP_DBHIDDEN( c->be ) ) {
5165                                 int i;
5166                                 /* if searchbase doesn't match current DB suffix,
5167                                  * assume it's different
5168                                  */
5169                                 for ( i=0; !BER_BVISNULL( &c->be->be_nsuffix[i] ); i++ ) {
5170                                         if ( bvmatch( &si->si_base, &c->be->be_nsuffix[i] )) {
5171                                                 isMe = 1;
5172                                                 break;
5173                                         }
5174                                 }
5175                                 /* if searchbase matches, see if URLs match */
5176                                 if ( isMe && config_check_my_url( si->si_bindconf.sb_uri.bv_val,
5177                                                 lud ) == NULL )
5178                                         isMe = 0;
5179                         }
5180
5181                         if ( !isMe ) {
5182                                 init_syncrepl( si );
5183                                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
5184                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
5185                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
5186                                         si->si_ridtxt );
5187                                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
5188                                 if ( si->si_re )
5189                                         rc = config_sync_shadow( c ) ? -1 : 0;
5190                                 else
5191                                         rc = -1;
5192                         }
5193                 } else {
5194                         /* mirrormode still needs to see this flag in tool mode */
5195                         rc = config_sync_shadow( c ) ? -1 : 0;
5196                 }
5197                 ldap_free_urldesc( lud );
5198         }
5199
5200 #ifdef HAVE_TLS
5201         /* Use main slapd defaults */
5202         bindconf_tls_defaults( &si->si_bindconf );
5203 #endif
5204         if ( rc < 0 ) {
5205                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
5206                 syncinfo_free( si, 0 );
5207                 return 1;
5208         } else {
5209                 Debug( LDAP_DEBUG_CONFIG,
5210                         "Config: ** successfully added syncrepl %s \"%s\"\n",
5211                         si->si_ridtxt,
5212                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
5213                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0 );
5214                 if ( c->be->be_syncinfo ) {
5215                         syncinfo_t *sip;
5216
5217                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
5218
5219                         /* add new syncrepl to end of list (same order as when deleting) */
5220                         for ( sip = c->be->be_syncinfo; sip->si_next; sip = sip->si_next );
5221                         sip->si_next = si;
5222                 } else {
5223                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
5224                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
5225                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_pmutex );
5226
5227                         c->be->be_syncinfo = si;
5228                 }
5229                 si->si_cookieState->cs_ref++;
5230
5231                 si->si_next = NULL;
5232
5233                 return 0;
5234         }
5235 }
5236
5237 static void
5238 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
5239 {
5240         struct berval bc, uri, bs;
5241         char buf[BUFSIZ*2], *ptr;
5242         ber_len_t len;
5243         int i;
5244 #       define WHATSLEFT        ((ber_len_t) (&buf[sizeof( buf )] - ptr))
5245
5246         BER_BVZERO( bv );
5247
5248         /* temporarily inhibit bindconf from printing URI */
5249         uri = si->si_bindconf.sb_uri;
5250         BER_BVZERO( &si->si_bindconf.sb_uri );
5251         si->si_bindconf.sb_version = 0;
5252         bindconf_unparse( &si->si_bindconf, &bc );
5253         si->si_bindconf.sb_uri = uri;
5254         si->si_bindconf.sb_version = LDAP_VERSION3;
5255
5256         ptr = buf;
5257         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_RID_MAX );
5258         len = snprintf( ptr, WHATSLEFT, IDSTR "=%03d " PROVIDERSTR "=%s",
5259                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
5260         if ( len >= sizeof( buf ) ) return;
5261         ptr += len;
5262         if ( !BER_BVISNULL( &bc ) ) {
5263                 if ( WHATSLEFT <= bc.bv_len ) {
5264                         free( bc.bv_val );
5265                         return;
5266                 }
5267                 ptr = lutil_strcopy( ptr, bc.bv_val );
5268                 free( bc.bv_val );
5269         }
5270         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
5271                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
5272                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
5273                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
5274                 *ptr++ = '"';
5275         }
5276         if ( !BER_BVISNULL( &si->si_base ) ) {
5277                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
5278                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
5279                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
5280                 *ptr++ = '"';
5281         }
5282 #ifdef ENABLE_REWRITE
5283         if ( !BER_BVISNULL( &si->si_suffixm ) ) {
5284                 if ( WHATSLEFT <= STRLENOF( " " SUFFIXMSTR "=\"" "\"" ) + si->si_suffixm.bv_len ) return;
5285                 ptr = lutil_strcopy( ptr, " " SUFFIXMSTR "=\"" );
5286                 ptr = lutil_strcopy( ptr, si->si_suffixm.bv_val );
5287                 *ptr++ = '"';
5288         }
5289 #endif
5290         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
5291                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
5292                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
5293                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
5294                 *ptr++ = '"';
5295         }
5296         if ( !BER_BVISNULL( &si->si_logbase ) ) {
5297                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
5298                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
5299                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
5300                 *ptr++ = '"';
5301         }
5302         if ( ldap_pvt_scope2bv( si->si_scope, &bs ) == LDAP_SUCCESS ) {
5303                 if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + bs.bv_len ) return;
5304                 ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
5305                 ptr = lutil_strcopy( ptr, bs.bv_val );
5306         }
5307         if ( si->si_attrsonly ) {
5308                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
5309                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
5310         }
5311         if ( si->si_anfile ) {
5312                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
5313                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
5314                 ptr = lutil_strcopy( ptr, si->si_anfile );
5315                 *ptr++ = '"';
5316         } else if ( si->si_allattrs || si->si_allopattrs ||
5317                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
5318         {
5319                 char *old;
5320
5321                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
5322                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
5323                 old = ptr;
5324                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
5325                 if ( ptr == NULL ) return;
5326                 if ( si->si_allattrs ) {
5327                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
5328                         if ( old != ptr ) *ptr++ = ',';
5329                         *ptr++ = '*';
5330                 }
5331                 if ( si->si_allopattrs ) {
5332                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
5333                         if ( old != ptr ) *ptr++ = ',';
5334                         *ptr++ = '+';
5335                 }
5336                 *ptr++ = '"';
5337         }
5338         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
5339                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
5340                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
5341                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
5342                 if ( ptr == NULL ) return;
5343         }
5344         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
5345         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
5346         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
5347
5348         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
5349         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
5350         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
5351                 "refreshAndPersist" : "refreshOnly" );
5352
5353         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
5354                 int dd, hh, mm, ss;
5355
5356                 dd = si->si_interval;
5357                 ss = dd % 60;
5358                 dd /= 60;
5359                 mm = dd % 60;
5360                 dd /= 60;
5361                 hh = dd % 24;
5362                 dd /= 24;
5363                 len = snprintf( ptr, WHATSLEFT, " %s=%02d:%02d:%02d:%02d",
5364                         INTERVALSTR, dd, hh, mm, ss );
5365                 if ( len >= WHATSLEFT ) return;
5366                 ptr += len;
5367         }
5368
5369         if ( si->si_got & GOT_RETRY ) {
5370                 const char *space = "";
5371                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
5372                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
5373                 for (i=0; si->si_retryinterval[i]; i++) {
5374                         len = snprintf( ptr, WHATSLEFT, "%s%ld ", space,
5375                                 (long) si->si_retryinterval[i] );
5376                         space = " ";
5377                         if ( WHATSLEFT - 1 <= len ) return;
5378                         ptr += len;
5379                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
5380                                 *ptr++ = '+';
5381                         else {
5382                                 len = snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
5383                                 if ( WHATSLEFT <= len ) return;
5384                                 ptr += len;
5385                         }
5386                 }
5387                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
5388                 *ptr++ = '"';
5389         } else {
5390                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=undefined" );
5391         }
5392
5393         if ( si->si_slimit ) {
5394                 len = snprintf( ptr, WHATSLEFT, " " SLIMITSTR "=%d", si->si_slimit );
5395                 if ( WHATSLEFT <= len ) return;
5396                 ptr += len;
5397         }
5398
5399         if ( si->si_tlimit ) {
5400                 len = snprintf( ptr, WHATSLEFT, " " TLIMITSTR "=%d", si->si_tlimit );
5401                 if ( WHATSLEFT <= len ) return;
5402                 ptr += len;
5403         }
5404
5405         if ( si->si_syncdata ) {
5406                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
5407                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
5408                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
5409                         ptr = lutil_strcopy( ptr, bc.bv_val );
5410                 }
5411         }
5412         bc.bv_len = ptr - buf;
5413         bc.bv_val = buf;
5414         ber_dupbv( bv, &bc );
5415 }
5416
5417 int
5418 syncrepl_config( ConfigArgs *c )
5419 {
5420         if (c->op == SLAP_CONFIG_EMIT) {
5421                 if ( c->be->be_syncinfo ) {
5422                         struct berval bv;
5423                         syncinfo_t *si;
5424
5425                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
5426                                 syncrepl_unparse( si, &bv );
5427                                 ber_bvarray_add( &c->rvalue_vals, &bv );
5428                         }
5429                         return 0;
5430                 }
5431                 return 1;
5432         } else if ( c->op == LDAP_MOD_DELETE ) {
5433                 int isrunning = 0;
5434                 if ( c->be->be_syncinfo ) {
5435                         syncinfo_t *si, **sip;
5436                         int i;
5437
5438                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
5439                                 si = *sip;
5440                                 if ( c->valx == -1 || i == c->valx ) {
5441                                         *sip = si->si_next;
5442                                         si->si_ctype = -1;
5443                                         si->si_next = NULL;
5444                                         /* If the task is currently active, we have to leave
5445                                          * it running. It will exit on its own. This will only
5446                                          * happen when running on the cn=config DB.
5447                                          */
5448                                         if ( si->si_re ) {
5449                                                 if ( ldap_pvt_thread_mutex_trylock( &si->si_mutex )) {
5450                                                         isrunning = 1;
5451                                                 } else {
5452                                                         /* There is no active thread, but we must still
5453                                                          * ensure that no thread is (or will be) queued
5454                                                          * while we removes the task.
5455                                                          */
5456                                                         struct re_s *re = si->si_re;
5457                                                         si->si_re = NULL;
5458
5459                                                         if ( si->si_conn ) {
5460                                                                 connection_client_stop( si->si_conn );
5461                                                                 si->si_conn = NULL;
5462                                                         }
5463
5464                                                         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
5465                                                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) ) {
5466                                                                 ldap_pvt_runqueue_stoptask( &slapd_rq, re );
5467                                                                 isrunning = 1;
5468                                                         }
5469                                                         ldap_pvt_runqueue_remove( &slapd_rq, re );
5470                                                         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
5471
5472                                                         if ( ldap_pvt_thread_pool_retract( &connection_pool,
5473                                                                         re->routine, re ) > 0 )
5474                                                                 isrunning = 0;
5475
5476                                                         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
5477                                                 }
5478                                         }
5479                                         if ( !isrunning ) {
5480                                                 syncinfo_free( si, 0 );
5481                                         }
5482                                         if ( i == c->valx )
5483                                                 break;
5484                                 } else {
5485                                         sip = &si->si_next;
5486                                 }
5487                         }
5488                 }
5489                 if ( !c->be->be_syncinfo ) {
5490                         SLAP_DBFLAGS( c->be ) &= ~SLAP_DBFLAG_SHADOW_MASK;
5491                 }
5492                 return 0;
5493         }
5494         if ( SLAP_SLURP_SHADOW( c->be ) ) {
5495                 Debug(LDAP_DEBUG_ANY, "%s: "
5496                         "syncrepl: database already shadowed.\n",
5497                         c->log, 0, 0);
5498                 return(1);
5499         } else {
5500                 return add_syncrepl( c );
5501         }
5502 }