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 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         struct slap_backend_db *si_be;
  63         struct slap_backend_db *si_wbe;
  64         struct re_s                     *si_re;
  65         int                                     si_rid;
  66         char                            si_ridtxt[8];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                                     si_scope;
  73         int                                     si_attrsonly;
  74         char                            *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                            **si_attrs;
  78         char                            **si_exattrs;
  79         int                                     si_allattrs;
  80         int                                     si_allopattrs;
  81         int                                     si_schemachecking;
  82         int                                     si_type;        /* the active type */
  83         int                                     si_ctype;       /* the configured type */
  84         time_t                          si_interval;
  85         time_t                          *si_retryinterval;
  86         int                                     *si_retrynum_init;
  87         int                                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                                     si_cookieAge;
  91         int                                     si_manageDSAit;
  92         int                                     si_slimit;
  93         int                                     si_tlimit;
  94         int                                     si_refreshDelete;
  95         int                                     si_refreshPresent;
  96         int                                     si_syncdata;
  97         int                                     si_logstate;
  98         int                                     si_conn_setup;
  99         Avlnode                         *si_presentlist;
 100         LDAP                            *si_ld;
 101         LDAP_LIST_HEAD(np, nonpresent_entry) si_nonpresentlist;
 102         ldap_pvt_thread_mutex_t si_mutex;
 103 } syncinfo_t;
 104
 105 static int syncuuid_cmp( const void *, const void * );
 106 static void avl_ber_bvfree( void * );
 107 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 108 static int syncrepl_message_to_op(
 109                                         syncinfo_t *, Operation *, LDAPMessage * );
 110 static int syncrepl_message_to_entry(
 111                                         syncinfo_t *, Operation *, LDAPMessage *,
 112                                         Modifications **, Entry **, int );
 113 static int syncrepl_entry(
 114                                         syncinfo_t *, Operation*, Entry*,
 115                                         Modifications**,int, struct berval* );
 116 static int syncrepl_updateCookie(
 117                                         syncinfo_t *, Operation *, struct berval *,
 118                                         struct sync_cookie * );
 119 static struct berval * slap_uuidstr_from_normalized(
 120                                         struct berval *, struct berval *, void * );
 121
 122 /* callback functions */
 123 static int dn_callback( struct slap_op *, struct slap_rep * );
 124 static int nonpresent_callback( struct slap_op *, struct slap_rep * );
 125 static int null_callback( struct slap_op *, struct slap_rep * );
 126
 127 static AttributeDescription *sync_descs[4];
 128
 129 static void
 130 init_syncrepl(syncinfo_t *si)
 131 {
 132         int i, j, k, l, n;
 133         char **attrs, **exattrs;
 134
 135         if ( !sync_descs[0] ) {
 136                 sync_descs[0] = slap_schema.si_ad_objectClass;
 137                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 138                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 139                 sync_descs[3] = NULL;
 140         }
 141
 142         if ( si->si_allattrs && si->si_allopattrs )
 143                 attrs = NULL;
 144         else
 145                 attrs = anlist2attrs( si->si_anlist );
 146
 147         if ( attrs ) {
 148                 if ( si->si_allattrs ) {
 149                         i = 0;
 150                         while ( attrs[i] ) {
 151                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 152                                         for ( j = i; attrs[j] != NULL; j++ ) {
 153                                                 if ( j == i )
 154                                                         ch_free( attrs[i] );
 155                                                 attrs[j] = attrs[j+1];
 156                                         }
 157                                 } else {
 158                                         i++;
 159                                 }
 160                         }
 161                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 162                         attrs[i] = ch_strdup("*");
 163                         attrs[i + 1] = NULL;
 164
 165                 } else if ( si->si_allopattrs ) {
 166                         i = 0;
 167                         while ( attrs[i] ) {
 168                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 169                                         for ( j = i; attrs[j] != NULL; j++ ) {
 170                                                 if ( j == i )
 171                                                         ch_free( attrs[i] );
 172                                                 attrs[j] = attrs[j+1];
 173                                         }
 174                                 } else {
 175                                         i++;
 176                                 }
 177                         }
 178                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 179                         attrs[i] = ch_strdup("+");
 180                         attrs[i + 1] = NULL;
 181                 }
 182
 183                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 184                         j = 0;
 185                         while ( attrs[j] ) {
 186                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 187                                         for ( k = j; attrs[k] != NULL; k++ ) {
 188                                                 if ( k == j )
 189                                                         ch_free( attrs[k] );
 190                                                 attrs[k] = attrs[k+1];
 191                                         }
 192                                 } else {
 193                                         j++;
 194                                 }
 195                         }
 196                 }
 197
 198                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 199
 200                 if ( si->si_allopattrs ) {
 201                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 202                 } else {
 203                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 204                 }
 205
 206                 if ( attrs == NULL ) {
 207                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0, 0, 0 );
 208                 }
 209
 210                 /* Add Attributes */
 211                 if ( si->si_allopattrs ) {
 212                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 213                 } else {
 214                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 215                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 216                         }
 217                 }
 218                 attrs[ n ] = NULL;
 219
 220         } else {
 221
 222                 i = 0;
 223                 if ( si->si_allattrs == si->si_allopattrs ) {
 224                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 225                         attrs[i++] = ch_strdup( "*" );
 226                         attrs[i++] = ch_strdup( "+" );
 227                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 228                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 229                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 230                         attrs[i++] = ch_strdup( "*" );
 231                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 232                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 233                         }
 234                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 235                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 236                         attrs[i++] = ch_strdup( "+" );
 237                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 238                 }
 239                 attrs[i] = NULL;
 240         }
 241
 242         si->si_attrs = attrs;
 243
 244         exattrs = anlist2attrs( si->si_exanlist );
 245
 246         if ( exattrs ) {
 247                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 248
 249                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 250                         j = 0;
 251                         while ( exattrs[j] != NULL ) {
 252                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 253                                         ch_free( exattrs[j] );
 254                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 255                                                 exattrs[k] = exattrs[k+1];
 256                                         }
 257                                 } else {
 258                                         j++;
 259                                 }
 260                         }
 261                 }
 262
 263                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 264                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 265                                 ObjectClass     *oc;
 266                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 267                                         k = 0;
 268                                         while ( oc->soc_required[k] ) {
 269                                                 if ( !strcmp( exattrs[i],
 270                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 271                                                         ch_free( exattrs[i] );
 272                                                         for ( l = i; exattrs[l]; l++ ) {
 273                                                                 exattrs[l] = exattrs[l+1];
 274                                                         }
 275                                                 } else {
 276                                                         k++;
 277                                                 }
 278                                         }
 279                                 }
 280                         }
 281                 }
 282
 283                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 284
 285                 if ( i != n )
 286                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 287         }
 288
 289         si->si_exattrs = exattrs;
 290 }
 291
 292 typedef struct logschema {
 293         struct berval ls_dn;
 294         struct berval ls_req;
 295         struct berval ls_mod;
 296         struct berval ls_newRdn;
 297         struct berval ls_delRdn;
 298         struct berval ls_newSup;
 299 } logschema;
 300
 301 static logschema changelog_sc = {
 302         BER_BVC("targetDN"),
 303         BER_BVC("changeType"),
 304         BER_BVC("changes"),
 305         BER_BVC("newRDN"),
 306         BER_BVC("deleteOldRDN"),
 307         BER_BVC("newSuperior")
 308 };
 309
 310 static logschema accesslog_sc = {
 311         BER_BVC("reqDN"),
 312         BER_BVC("reqType"),
 313         BER_BVC("reqMod"),
 314         BER_BVC("reqNewRDN"),
 315         BER_BVC("reqDeleteOldRDN"),
 316         BER_BVC("reqNewSuperior")
 317 };
 318
 319 static int
 320 ldap_sync_search(
 321         syncinfo_t *si,
 322         void *ctx )
 323 {
 324         BerElementBuffer berbuf;
 325         BerElement *ber = (BerElement *)&berbuf;
 326         LDAPControl c[2], *ctrls[3];
 327         struct timeval timeout;
 328         ber_int_t       msgid;
 329         int rc;
 330         int rhint;
 331         char *base;
 332         char **attrs, *lattrs[8];
 333         char *filter;
 334         int attrsonly;
 335         int scope;
 336
 337         /* setup LDAP SYNC control */
 338         ber_init2( ber, NULL, LBER_USE_DER );
 339         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 340
 341         /* If we're using a log but we have no state, then fallback to
 342          * normal mode for a full refresh.
 343          */
 344         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 345                 si->si_logstate = SYNCLOG_FALLBACK;
 346         }
 347
 348         /* Use the log parameters if we're in log mode */
 349         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 350                 logschema *ls;
 351                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 352                         ls = &accesslog_sc;
 353                 else
 354                         ls = &changelog_sc;
 355                 lattrs[0] = ls->ls_dn.bv_val;
 356                 lattrs[1] = ls->ls_req.bv_val;
 357                 lattrs[2] = ls->ls_mod.bv_val;
 358                 lattrs[3] = ls->ls_newRdn.bv_val;
 359                 lattrs[4] = ls->ls_delRdn.bv_val;
 360                 lattrs[5] = ls->ls_newSup.bv_val;
 361                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 362                 lattrs[7] = NULL;
 363
 364                 rhint = 0;
 365                 base = si->si_logbase.bv_val;
 366                 filter = si->si_logfilterstr.bv_val;
 367                 attrs = lattrs;
 368                 attrsonly = 0;
 369                 scope = LDAP_SCOPE_SUBTREE;
 370         } else {
 371                 rhint = 1;
 372                 base = si->si_base.bv_val;
 373                 filter = si->si_filterstr.bv_val;
 374                 attrs = si->si_attrs;
 375                 attrsonly = si->si_attrsonly;
 376                 scope = si->si_scope;
 377         }
 378         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 379                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 380         } else {
 381                 si->si_type = si->si_ctype;
 382         }
 383
 384         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 385         {
 386                 ber_printf( ber, "{eOb}",
 387                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 388         } else {
 389                 ber_printf( ber, "{eb}",
 390                         abs(si->si_type), rhint );
 391         }
 392
 393         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 394                 ber_free_buf( ber );
 395                 return rc;
 396         }
 397
 398         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 399         c[0].ldctl_iscritical = si->si_type < 0;
 400         ctrls[0] = &c[0];
 401
 402         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 403                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 404                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 405                 c[1].ldctl_iscritical = 1;
 406                 ctrls[1] = &c[1];
 407                 ctrls[2] = NULL;
 408         } else {
 409                 ctrls[1] = NULL;
 410         }
 411
 412         timeout.tv_sec = si->si_tlimit;
 413         timeout.tv_usec = 0;
 414
 415         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 416                 ctrls, NULL, si->si_tlimit > 0 ? &timeout : NULL,
 417                 si->si_slimit, &msgid );
 418         ber_free_buf( ber );
 419         return rc;
 420 }
 421
 422 static int
 423 do_syncrep1(
 424         Operation *op,
 425         syncinfo_t *si )
 426 {
 427         int     rc;
 428         int cmdline_cookie_found = 0;
 429
 430         struct sync_cookie      *sc = NULL;
 431 #ifdef HAVE_TLS
 432         void    *ssl;
 433 #endif
 434
 435         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 436         if ( rc != LDAP_SUCCESS ) {
 437                 goto done;
 438         }
 439         op->o_protocol = LDAP_VERSION3;
 440
 441         /* Set SSF to strongest of TLS, SASL SSFs */
 442         op->o_sasl_ssf = 0;
 443         op->o_tls_ssf = 0;
 444         op->o_transport_ssf = 0;
 445 #ifdef HAVE_TLS
 446         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 447                 == LDAP_SUCCESS && ssl != NULL )
 448         {
 449                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 450         }
 451 #endif /* HAVE_TLS */
 452         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 453         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 454                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 455
 456         /* We've just started up, or the remote server hasn't sent us
 457          * any meaningful state.
 458          */
 459         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 460                 int i;
 461
 462                 si->si_syncCookie.rid = si->si_rid;
 463                 si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 464                         slap_serverID;
 465
 466                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 467                         if ( si->si_rid == sc->rid ) {
 468                                 cmdline_cookie_found = 1;
 469                                 break;
 470                         }
 471                 }
 472
 473                 if ( cmdline_cookie_found ) {
 474                         /* cookie is supplied in the command line */
 475
 476                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 477
 478                         /* ctxcsn wasn't parsed yet, do it now */
 479                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 480                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 481                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 482                         slap_sync_cookie_free( sc, 1 );
 483                 } else {
 484                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 485                         if ( !si->si_cookieState->cs_num ) {
 486                                 /* get contextCSN shadow replica from database */
 487                                 BerVarray csn = NULL;
 488                                 void *ctx = op->o_tmpmemctx;
 489
 490                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 491                                 op->o_req_dn = op->o_req_ndn;
 492
 493                                 /* try to read stored contextCSN */
 494                                 op->o_tmpmemctx = NULL;
 495                                 backend_attribute( op, NULL, &op->o_req_ndn,
 496                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 497                                 op->o_tmpmemctx = ctx;
 498                                 if ( csn ) {
 499                                         si->si_cookieState->cs_vals = csn;
 500                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 501                                         si->si_cookieState->cs_num = i;
 502                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i );
 503                                 }
 504                         }
 505                         if ( si->si_cookieState->cs_num ) {
 506                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 507                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 508                                         si->si_cookieState->cs_vals, NULL )) {
 509                                         rc = LDAP_NO_MEMORY;
 510                                         goto done;
 511                                 }
 512                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 513                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 514                                         sizeof(int) );
 515                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 516                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 517                         }
 518                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 519                 }
 520
 521                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 522                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 523                         si->si_syncCookie.sid );
 524         } else {
 525                 AttributeName at[2];
 526                 Attribute a = { slap_schema.si_ad_contextCSN };
 527                 Entry e = {0};
 528                 SlapReply rs = {0};
 529                 int i, j, changed = 0;
 530
 531                 /* Look for contextCSN from syncprov overlay. If
 532                  * there's no overlay, this will be a no-op. That means
 533                  * this is a pure consumer, so local changes will not be
 534                  * allowed, and all changes will already be reflected in
 535                  * the cookieState.
 536                  */
 537                 e.e_attrs = &a;
 538                 e.e_name = si->si_wbe->be_suffix[0];
 539                 e.e_nname = si->si_wbe->be_nsuffix[0];
 540                 rs.sr_entry = &e;
 541                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 542                 at[0].an_name = a.a_desc->ad_cname;
 543                 at[0].an_desc = a.a_desc;
 544                 BER_BVZERO( &at[1].an_name );
 545
 546                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 547                 rc = backend_operational( op, &rs );
 548                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 549                         int num;
 550                         for (i=0; !BER_BVISNULL( &a.a_vals[i] ); i++) ;
 551                         num = i;
 552                         /* check for differences */
 553                         if ( num != si->si_cookieState->cs_num ) {
 554                                 changed = 1;
 555                         } else {
 556                                 for ( i=0; i<num; i++ ) {
 557                                         if ( ber_bvcmp( &a.a_vals[i],
 558                                                 &si->si_cookieState->cs_vals[i] )) {
 559                                                 changed =1;
 560                                                 break;
 561                                         }
 562                                 }
 563                         }
 564                         if ( changed ) {
 565                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 566                                 ch_free( si->si_cookieState->cs_sids );
 567                                 si->si_cookieState->cs_num = num;
 568                                 si->si_cookieState->cs_vals = a.a_vals;
 569                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 570                                         num );
 571                                 si->si_cookieState->cs_age++;
 572                         } else {
 573                                 ber_bvarray_free( a.a_vals );
 574                         }
 575                         changed = 0;
 576                 }
 577                 /* See if the cookieState has changed due to anything outside
 578                  * this particular consumer. That includes other consumers in
 579                  * the same context, or local changes detected above.
 580                  */
 581                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 582                         si->si_cookieState->cs_age ) {
 583
 584                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 585                                 /* bogus, just dup everything */
 586                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 587                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 588                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 589                                                 si->si_cookieState->cs_vals, NULL );
 590                                         changed = 1;
 591                                         break;
 592                                 }
 593                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 594                                         if ( si->si_syncCookie.sids[i] !=
 595                                                 si->si_cookieState->cs_sids[j] )
 596                                                 continue;
 597                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 598                                                 &si->si_cookieState->cs_vals[j] ))
 599                                                 break;
 600                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 601                                                 &si->si_cookieState->cs_vals[j] );
 602                                         changed = 1;
 603                                         break;
 604                                 }
 605                         }
 606                         if ( changed ) {
 607                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 608                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 609                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 610                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 611                         }
 612                 }
 613                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 614         }
 615
 616         rc = ldap_sync_search( si, op->o_tmpmemctx );
 617
 618         if( rc != LDAP_SUCCESS ) {
 619                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 620                         "ldap_search_ext: %s (%d)\n",
 621                         si->si_ridtxt, ldap_err2string( rc ), rc );
 622         }
 623
 624 done:
 625         if ( rc ) {
 626                 if ( si->si_ld ) {
 627                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 628                         si->si_ld = NULL;
 629                 }
 630         }
 631
 632         return rc;
 633 }
 634
 635 static int
 636 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 637 {
 638         int i, j, match = 0;
 639         const char *text;
 640
 641         *which = 0;
 642
 643         if ( sc1->numcsns < sc2->numcsns ) {
 644                 *which = sc1->numcsns;
 645                 return -1;
 646         }
 647
 648         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 649                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 650                         if ( sc1->sids[i] != sc2->sids[j] )
 651                                 continue;
 652                         value_match( &match, slap_schema.si_ad_entryCSN,
 653                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 654                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 655                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 656                         if ( match < 0 ) {
 657                                 *which = j;
 658                                 return match;
 659                         }
 660                         break;
 661                 }
 662         }
 663         return match;
 664 }
 665
 666 static int
 667 do_syncrep2(
 668         Operation *op,
 669         syncinfo_t *si )
 670 {
 671         LDAPControl     **rctrls = NULL;
 672         LDAPControl     *rctrlp;
 673
 674         BerElementBuffer berbuf;
 675         BerElement      *ber = (BerElement *)&berbuf;
 676
 677         LDAPMessage     *res = NULL;
 678         LDAPMessage     *msg = NULL;
 679
 680         char            *retoid = NULL;
 681         struct berval   *retdata = NULL;
 682
 683         Entry           *entry = NULL;
 684
 685         int             syncstate;
 686         struct berval   syncUUID = BER_BVNULL;
 687         struct sync_cookie      syncCookie = { NULL };
 688         struct sync_cookie      syncCookie_req = { NULL };
 689         struct berval           cookie = BER_BVNULL;
 690
 691         int     rc, err;
 692         ber_len_t       len;
 693
 694         struct berval   *psub;
 695         Modifications   *modlist = NULL;
 696
 697         int                             match, m;
 698
 699         struct timeval *tout_p = NULL;
 700         struct timeval tout = { 0, 0 };
 701
 702         int             refreshDeletes = 0;
 703         int             refreshDone = 1;
 704         BerVarray syncUUIDs = NULL;
 705         ber_tag_t si_tag;
 706
 707         if ( slapd_shutdown ) {
 708                 rc = -2;
 709                 goto done;
 710         }
 711
 712         ber_init2( ber, NULL, LBER_USE_DER );
 713         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 714
 715         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 716
 717         psub = &si->si_be->be_nsuffix[0];
 718
 719         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 720
 721         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 722                 tout_p = &tout;
 723         } else {
 724                 tout_p = NULL;
 725         }
 726
 727         while ( ( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 728                 tout_p, &res ) ) > 0 )
 729         {
 730                 if ( slapd_shutdown ) {
 731                         rc = -2;
 732                         goto done;
 733                 }
 734                 for( msg = ldap_first_message( si->si_ld, res );
 735                         msg != NULL;
 736                         msg = ldap_next_message( si->si_ld, msg ) )
 737                 {
 738                         if ( slapd_shutdown ) {
 739                                 rc = -2;
 740                                 goto done;
 741                         }
 742                         switch( ldap_msgtype( msg ) ) {
 743                         case LDAP_RES_SEARCH_ENTRY:
 744                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 745                                 /* we can't work without the control */
 746                                 rctrlp = NULL;
 747                                 if ( rctrls ) {
 748                                         /* NOTE: make sure we use the right one;
 749                                          * a better approach would be to run thru
 750                                          * the whole list and take care of all */
 751                                         rctrlp = ldap_find_control( LDAP_CONTROL_SYNC_STATE, rctrls );
 752                                 }
 753                                 if ( rctrlp == NULL ) {
 754                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 755                                                 "got search entry without "
 756                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 757                                         rc = -1;
 758                                         goto done;
 759                                 }
 760                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 761                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 762                                 /* FIXME: what if syncUUID is NULL or empty?
 763                                  * (happens with back-sql...) */
 764                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 765                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 766                                                 "got empty syncUUID\n", si->si_ridtxt, 0, 0 );
 767                                         ldap_controls_free( rctrls );
 768                                         rc = -1;
 769                                         goto done;
 770                                 }
 771                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 772                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 773                                         if ( !BER_BVISNULL( &cookie ) ) {
 774                                                 ch_free( syncCookie.octet_str.bv_val );
 775                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 776                                         }
 777                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 778                                         {
 779                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 780                                         }
 781                                 }
 782                                 rc = 0;
 783                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 784                                         modlist = NULL;
 785                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 786                                                 syncCookie.ctxcsn )
 787                                         {
 788                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 789                                         }
 790                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 791                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 792                                 {
 793                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 794                                                 syncstate, &syncUUID ) ) == LDAP_SUCCESS &&
 795                                                 syncCookie.ctxcsn )
 796                                         {
 797                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 798                                         }
 799                                 }
 800                                 ldap_controls_free( rctrls );
 801                                 if ( modlist ) {
 802                                         slap_mods_free( modlist, 1 );
 803                                 }
 804                                 if ( rc )
 805                                         goto done;
 806                                 break;
 807
 808                         case LDAP_RES_SEARCH_REFERENCE:
 809                                 Debug( LDAP_DEBUG_ANY,
 810                                         "do_syncrep2: %s reference received error\n",
 811                                         si->si_ridtxt, 0, 0 );
 812                                 break;
 813
 814                         case LDAP_RES_SEARCH_RESULT:
 815                                 Debug( LDAP_DEBUG_SYNC,
 816                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 817                                         si->si_ridtxt, 0, 0 );
 818                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 819                                         &rctrls, 0 );
 820 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 821                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 822                                         /* map old result code to registered code */
 823                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 824                                 }
 825 #endif
 826                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 827                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 828                                                 si->si_logstate = SYNCLOG_FALLBACK;
 829                                         }
 830                                         rc = err;
 831                                         goto done;
 832                                 }
 833                                 if ( rctrls ) {
 834                                         rctrlp = *rctrls;
 835                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 836
 837                                         ber_scanf( ber, "{" /*"}"*/);
 838                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 839                                                 ber_scanf( ber, "m", &cookie );
 840                                                 if ( !BER_BVISNULL( &cookie ) ) {
 841                                                         ch_free( syncCookie.octet_str.bv_val );
 842                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 843                                                 }
 844                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 845                                                 {
 846                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 847                                                 }
 848                                         }
 849                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 850                                         {
 851                                                 ber_scanf( ber, "b", &refreshDeletes );
 852                                         }
 853                                         ber_scanf( ber, /*"{"*/ "}" );
 854                                 }
 855                                 if ( !syncCookie_req.ctxcsn ) {
 856                                         match = -1;
 857                                         m = 0;
 858                                 } else if ( !syncCookie.ctxcsn ) {
 859                                         match = 1;
 860                                 } else {
 861                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 862                                 }
 863                                 if ( rctrls ) {
 864                                         ldap_controls_free( rctrls );
 865                                 }
 866                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 867                                         /* FIXME : different error behaviors according to
 868                                          *      1) err code : LDAP_BUSY ...
 869                                          *      2) on err policy : stop service, stop sync, retry
 870                                          */
 871                                         if ( refreshDeletes == 0 && match < 0 &&
 872                                                 err == LDAP_SUCCESS )
 873                                         {
 874                                                 syncrepl_del_nonpresent( op, si, NULL,
 875                                                         &syncCookie.ctxcsn[m] );
 876                                         } else {
 877                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 878                                                 si->si_presentlist = NULL;
 879                                         }
 880                                 }
 881                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 882                                 {
 883                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 884                                 }
 885                                 if ( err == LDAP_SUCCESS
 886                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 887                                         si->si_logstate = SYNCLOG_LOGGING;
 888                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 889                                 } else {
 890                                         rc = -2;
 891                                 }
 892                                 goto done;
 893                                 break;
 894
 895                         case LDAP_RES_INTERMEDIATE:
 896                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 897                                         &retoid, &retdata, NULL, 0 );
 898                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 899                                         ber_init2( ber, retdata, LBER_USE_DER );
 900
 901                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 902                                         ber_tag_t tag;
 903                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 904                                                 Debug( LDAP_DEBUG_SYNC,
 905                                                         "do_syncrep2: %s %s - %s\n",
 906                                                         si->si_ridtxt,
 907                                                         "LDAP_RES_INTERMEDIATE",
 908                                                         "NEW_COOKIE" );
 909                                                 ber_scanf( ber, "tm", &tag, &cookie );
 910                                                 break;
 911                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 912                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 913                                                 Debug( LDAP_DEBUG_SYNC,
 914                                                         "do_syncrep2: %s %s - %s\n",
 915                                                         si->si_ridtxt,
 916                                                         "LDAP_RES_INTERMEDIATE",
 917                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 918                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 919                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 920                                                         si->si_refreshDelete = 1;
 921                                                 } else {
 922                                                         si->si_refreshPresent = 1;
 923                                                 }
 924                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 925                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 926                                                 {
 927                                                         ber_scanf( ber, "m", &cookie );
 928                                                         if ( !BER_BVISNULL( &cookie ) ) {
 929                                                                 ch_free( syncCookie.octet_str.bv_val );
 930                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 931                                                         }
 932                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 933                                                         {
 934                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 935                                                         }
 936                                                 }
 937                                                 if ( ber_peek_tag( ber, &len ) ==
 938                                                         LDAP_TAG_REFRESHDONE )
 939                                                 {
 940                                                         ber_scanf( ber, "b", &refreshDone );
 941                                                 }
 942                                                 ber_scanf( ber, /*"{"*/ "}" );
 943                                                 break;
 944                                         case LDAP_TAG_SYNC_ID_SET:
 945                                                 Debug( LDAP_DEBUG_SYNC,
 946                                                         "do_syncrep2: %s %s - %s\n",
 947                                                         si->si_ridtxt,
 948                                                         "LDAP_RES_INTERMEDIATE",
 949                                                         "SYNC_ID_SET" );
 950                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 951                                                 if ( ber_peek_tag( ber, &len ) ==
 952                                                         LDAP_TAG_SYNC_COOKIE )
 953                                                 {
 954                                                         ber_scanf( ber, "m", &cookie );
 955                                                         if ( !BER_BVISNULL( &cookie ) ) {
 956                                                                 ch_free( syncCookie.octet_str.bv_val );
 957                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 958                                                         }
 959                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 960                                                         {
 961                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 962                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
 963                                                         }
 964                                                 }
 965                                                 if ( ber_peek_tag( ber, &len ) ==
 966                                                         LDAP_TAG_REFRESHDELETES )
 967                                                 {
 968                                                         ber_scanf( ber, "b", &refreshDeletes );
 969                                                 }
 970                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 971                                                 ber_scanf( ber, /*"{"*/ "}" );
 972                                                 if ( refreshDeletes ) {
 973                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
 974                                                                 &syncCookie.ctxcsn[m] );
 975                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
 976                                                 } else {
 977                                                         int i;
 978                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
 979                                                                 struct berval *syncuuid_bv;
 980                                                                 syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 981                                                                 slap_sl_free( syncUUIDs[i].bv_val,op->o_tmpmemctx );
 982                                                                 if ( avl_insert( &si->si_presentlist,
 983                                                                         (caddr_t) syncuuid_bv,
 984                                                                         syncuuid_cmp, avl_dup_error ) )
 985                                                                 {
 986                                                                         ber_bvfree( syncuuid_bv );
 987                                                                 }
 988                                                         }
 989                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
 990                                                 }
 991                                                 slap_sync_cookie_free( &syncCookie, 0 );
 992                                                 break;
 993                                         default:
 994                                                 Debug( LDAP_DEBUG_ANY,
 995                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
 996                                                         si->si_ridtxt, (long) si_tag, 0 );
 997                                                 ldap_memfree( retoid );
 998                                                 ber_bvfree( retdata );
 999                                                 continue;
1000                                         }
1001
1002                                         if ( !syncCookie_req.ctxcsn ) {
1003                                                 match = -1;
1004                                                 m = 0;
1005                                         } else if ( !syncCookie.ctxcsn ) {
1006                                                 match = 1;
1007                                         } else {
1008                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1009                                         }
1010
1011                                         if ( match < 0 ) {
1012                                                 if ( si->si_refreshPresent == 1 ) {
1013                                                         syncrepl_del_nonpresent( op, si, NULL,
1014                                                                 &syncCookie.ctxcsn[m] );
1015                                                 }
1016
1017                                                 if ( syncCookie.ctxcsn )
1018                                                 {
1019                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1020                                                 }
1021                                         }
1022
1023                                         ldap_memfree( retoid );
1024                                         ber_bvfree( retdata );
1025                                         break;
1026
1027                                 } else {
1028                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1029                                                 "unknown intermediate response (%d)\n",
1030                                                 si->si_ridtxt, rc, 0 );
1031                                         ldap_memfree( retoid );
1032                                         ber_bvfree( retdata );
1033                                         break;
1034                                 }
1035                                 break;
1036
1037                         default:
1038                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1039                                         "unknown message\n", si->si_ridtxt, 0, 0 );
1040                                 break;
1041
1042                         }
1043                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1044                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1045                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1046                                 slap_sync_cookie_free( &syncCookie, 0 );
1047                         }
1048                 }
1049                 ldap_msgfree( res );
1050                 res = NULL;
1051         }
1052
1053         if ( rc == -1 ) {
1054                 const char *errstr;
1055
1056                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1057                 errstr = ldap_err2string( rc );
1058
1059                 Debug( LDAP_DEBUG_ANY,
1060                         "do_syncrep2: %s %s\n", si->si_ridtxt, errstr, 0 );
1061         }
1062
1063 done:
1064         slap_sync_cookie_free( &syncCookie, 0 );
1065         slap_sync_cookie_free( &syncCookie_req, 0 );
1066
1067         if ( res ) ldap_msgfree( res );
1068
1069         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1070                 if ( si->si_conn_setup ) {
1071                         ber_socket_t s;
1072                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1073                         connection_client_stop( s );
1074                         si->si_conn_setup = 0;
1075                 }
1076                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1077                 si->si_ld = NULL;
1078         }
1079
1080         return rc;
1081 }
1082
1083 static void *
1084 do_syncrepl(
1085         void    *ctx,
1086         void    *arg )
1087 {
1088         struct re_s* rtask = arg;
1089         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1090         Connection conn = {0};
1091         OperationBuffer opbuf;
1092         Operation *op;
1093         int rc = LDAP_SUCCESS;
1094         int dostop = 0;
1095         ber_socket_t s;
1096         int i, defer = 1;
1097         Backend *be;
1098
1099         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1100
1101         if ( si == NULL )
1102                 return NULL;
1103
1104         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1105
1106         switch( abs( si->si_type ) ) {
1107         case LDAP_SYNC_REFRESH_ONLY:
1108         case LDAP_SYNC_REFRESH_AND_PERSIST:
1109                 break;
1110         default:
1111                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1112                 return NULL;
1113         }
1114
1115         if ( slapd_shutdown ) {
1116                 if ( si->si_ld ) {
1117                         if ( si->si_conn_setup ) {
1118                                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1119                                 connection_client_stop( s );
1120                                 si->si_conn_setup = 0;
1121                         }
1122                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1123                         si->si_ld = NULL;
1124                 }
1125                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1126                 return NULL;
1127         }
1128
1129         op = (Operation *) &opbuf;
1130         connection_fake_init( &conn, op, ctx );
1131
1132         /* use global malloc for now */
1133         op->o_tmpmemctx = NULL;
1134         op->o_tmpmfuncs = &ch_mfuncs;
1135
1136         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1137         op->o_bd = be = si->si_be;
1138         op->o_dn = op->o_bd->be_rootdn;
1139         op->o_ndn = op->o_bd->be_rootndn;
1140         if ( !si->si_schemachecking )
1141                 op->o_no_schema_check = 1;
1142
1143         /* If we're glued, send writes through the glue parent */
1144         if ( !si->si_wbe ) {
1145                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1146                         si->si_wbe = select_backend( &be->be_nsuffix[0], 0, 1 );
1147                 } else {
1148                         si->si_wbe = be;
1149                 }
1150         }
1151
1152         /* Establish session, do search */
1153         if ( !si->si_ld ) {
1154                 si->si_refreshDelete = 0;
1155                 si->si_refreshPresent = 0;
1156                 rc = do_syncrep1( op, si );
1157         }
1158
1159 reload:
1160         /* Process results */
1161         if ( rc == LDAP_SUCCESS ) {
1162                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1163
1164                 rc = do_syncrep2( op, si );
1165                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1166                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1167                         goto reload;
1168                 }
1169
1170                 /* We got deleted while running on cn=config */
1171                 if ( !si->si_ctype ) {
1172                         if ( si->si_conn_setup )
1173                                 dostop = 1;
1174                         rc = -1;
1175                 }
1176
1177                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1178                         /* If we succeeded, enable the connection for further listening.
1179                          * If we failed, tear down the connection and reschedule.
1180                          */
1181                         if ( rc == LDAP_SUCCESS ) {
1182                                 if ( si->si_conn_setup ) {
1183                                         connection_client_enable( s );
1184                                 } else {
1185                                         rc = connection_client_setup( s, do_syncrepl, arg );
1186                                         if ( rc == 0 )
1187                                                 si->si_conn_setup = 1;
1188                                 }
1189                         } else if ( si->si_conn_setup ) {
1190                                 dostop = 1;
1191                         }
1192                 } else {
1193                         if ( rc == -2 ) rc = 0;
1194                 }
1195         }
1196
1197         /* At this point, we have 4 cases:
1198          * 1) for any hard failure, give up and remove this task
1199          * 2) for ServerDown, reschedule this task to run
1200          * 3) for Refresh and Success, reschedule to run
1201          * 4) for Persist and Success, reschedule to defer
1202          */
1203         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1204
1205         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1206                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1207         }
1208
1209         if ( dostop ) {
1210                 connection_client_stop( s );
1211         }
1212
1213         if ( rc == LDAP_SUCCESS ) {
1214                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1215                         defer = 0;
1216                 }
1217                 rtask->interval.tv_sec = si->si_interval;
1218                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1219                 if ( si->si_retrynum ) {
1220                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1221                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1222                         }
1223                         si->si_retrynum[i] = RETRYNUM_TAIL;
1224                 }
1225         } else {
1226                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1227                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1228                                 break;
1229                 }
1230
1231                 if ( !si->si_ctype
1232                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1233                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1234                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1235                         if ( si->si_retrynum[i] > 0 )
1236                                 si->si_retrynum[i]--;
1237                         rtask->interval.tv_sec = si->si_retryinterval[i];
1238                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1239                         slap_wake_listener();
1240                 }
1241         }
1242
1243         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1244         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1245
1246         /* Do final delete cleanup */
1247         if ( !si->si_ctype ) {
1248                 cookie_state *cs = NULL;
1249                 syncinfo_t **sip;
1250
1251                 cs = be->be_syncinfo->si_cookieState;
1252                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1253                 *sip = si->si_next;
1254                 syncinfo_free( si, 0 );
1255                 if ( !be->be_syncinfo ) {
1256                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1257                         if ( cs ) {
1258                                 ch_free( cs->cs_sids );
1259                                 ber_bvarray_free( cs->cs_vals );
1260                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1261                                 ch_free( cs );
1262                         }
1263                 }
1264         }
1265         return NULL;
1266 }
1267
1268 static slap_verbmasks modops[] = {
1269         { BER_BVC("add"), LDAP_REQ_ADD },
1270         { BER_BVC("delete"), LDAP_REQ_DELETE },
1271         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1272         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1273         { BER_BVNULL, 0 }
1274 };
1275
1276 static Modifications *
1277 syncrepl_accesslog_mods(
1278         syncinfo_t *si,
1279         struct berval *vals
1280 )
1281 {
1282         char *colon;
1283         const char *text;
1284         AttributeDescription *ad;
1285         struct berval bv, bv2;
1286         short op;
1287         Modifications *mod = NULL, *modlist = NULL, **modtail;
1288         int i;
1289
1290         modtail = &modlist;
1291
1292         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1293                 ad = NULL;
1294                 bv = vals[i];
1295
1296                 colon = ber_bvchr( &bv, ':' );
1297                 if ( !colon ) {
1298                         /* Invalid */
1299                         continue;
1300                 }
1301
1302                 bv.bv_len = colon - bv.bv_val;
1303                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1304                         /* Invalid */
1305                         continue;
1306                 }
1307
1308                 /* Ignore dynamically generated attrs */
1309                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1310                         continue;
1311                 }
1312
1313                 /* Ignore excluded attrs */
1314                 if ( ldap_charray_inlist( si->si_exattrs,
1315                         ad->ad_type->sat_cname.bv_val ) )
1316                 {
1317                         continue;
1318                 }
1319
1320                 switch(colon[1]) {
1321                 case '+':       op = LDAP_MOD_ADD; break;
1322                 case '-':       op = LDAP_MOD_DELETE; break;
1323                 case '=':       op = LDAP_MOD_REPLACE; break;
1324                 case '#':       op = LDAP_MOD_INCREMENT; break;
1325                 default:        continue;
1326                 }
1327
1328                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1329                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1330                         mod->sml_flags = 0;
1331                         mod->sml_op = op;
1332                         mod->sml_next = NULL;
1333                         mod->sml_desc = ad;
1334                         mod->sml_type = ad->ad_cname;
1335                         mod->sml_values = NULL;
1336                         mod->sml_nvalues = NULL;
1337
1338                         *modtail = mod;
1339                         modtail = &mod->sml_next;
1340                 }
1341                 if ( colon[2] == ' ' ) {
1342                         bv.bv_val = colon + 3;
1343                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1344                         ber_dupbv( &bv2, &bv );
1345                         ber_bvarray_add( &mod->sml_values, &bv2 );
1346                 }
1347         }
1348         return modlist;
1349 }
1350
1351 static Modifications *
1352 syncrepl_changelog_mods(
1353         syncinfo_t *si,
1354         struct berval *vals
1355 )
1356 {
1357         return NULL;    /* FIXME */
1358 }
1359
1360 static int
1361 syncrepl_message_to_op(
1362         syncinfo_t      *si,
1363         Operation       *op,
1364         LDAPMessage     *msg
1365 )
1366 {
1367         BerElement      *ber = NULL;
1368         Modifications   *modlist = NULL;
1369         logschema *ls;
1370         SlapReply rs = { REP_RESULT };
1371         slap_callback cb = { NULL, null_callback, NULL, NULL };
1372
1373         const char      *text;
1374         char txtbuf[SLAP_TEXT_BUFLEN];
1375         size_t textlen = sizeof txtbuf;
1376
1377         struct berval   bdn, dn = BER_BVNULL, ndn;
1378         struct berval   bv, *bvals = NULL;
1379         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1380                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1381                 psup = BER_BVNULL, nsup = BER_BVNULL;
1382         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1383
1384         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1385                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1386                         "Message type should be entry (%d)",
1387                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1388                 return -1;
1389         }
1390
1391         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1392                 ls = &accesslog_sc;
1393         else
1394                 ls = &changelog_sc;
1395
1396         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1397
1398         if ( rc != LDAP_SUCCESS ) {
1399                 Debug( LDAP_DEBUG_ANY,
1400                         "syncrepl_message_to_op: %s dn get failed (%d)",
1401                         si->si_ridtxt, rc, 0 );
1402                 return rc;
1403         }
1404
1405         op->o_tag = LBER_DEFAULT;
1406         op->o_bd = si->si_wbe;
1407
1408         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1409                 == LDAP_SUCCESS ) {
1410                 if ( bv.bv_val == NULL )
1411                         break;
1412
1413                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1414                         bdn = bvals[0];
1415                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1416                         ber_dupbv( &op->o_req_dn, &dn );
1417                         ber_dupbv( &op->o_req_ndn, &ndn );
1418                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1419                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1420                         freeReqDn = 1;
1421                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1422                         int i = verb_to_mask( bvals[0].bv_val, modops );
1423                         if ( i < 0 ) {
1424                                 Debug( LDAP_DEBUG_ANY,
1425                                         "syncrepl_message_to_op: %s unknown op %s",
1426                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1427                                 ch_free( bvals );
1428                                 rc = -1;
1429                                 goto done;
1430                         }
1431                         op->o_tag = modops[i].mask;
1432                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1433                         /* Parse attribute into modlist */
1434                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1435                                 modlist = syncrepl_accesslog_mods( si, bvals );
1436                         } else {
1437                                 modlist = syncrepl_changelog_mods( si, bvals );
1438                         }
1439                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1440                         rdn = bvals[0];
1441                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1442                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1443                                 deleteOldRdn = 1;
1444                         }
1445                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1446                         sup = bvals[0];
1447                 } else if ( !ber_bvstrcasecmp( &bv,
1448                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1449                 {
1450                         slap_queue_csn( op, bvals );
1451                 }
1452                 ch_free( bvals );
1453         }
1454
1455         /* If we didn't get a mod type or a target DN, bail out */
1456         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1457                 rc = -1;
1458                 goto done;
1459         }
1460
1461         op->o_callback = &cb;
1462         slap_op_time( &op->o_time, &op->o_tincr );
1463
1464         switch( op->o_tag ) {
1465         case LDAP_REQ_ADD:
1466         case LDAP_REQ_MODIFY:
1467                 /* If we didn't get required data, bail */
1468                 if ( !modlist ) goto done;
1469
1470                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1471
1472                 if ( rc != LDAP_SUCCESS ) {
1473                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1474                                 "mods check (%s)\n",
1475                                 si->si_ridtxt, text, 0 );
1476                         goto done;
1477                 }
1478
1479                 if ( op->o_tag == LDAP_REQ_ADD ) {
1480                         Entry *e = entry_alloc();
1481                         op->ora_e = e;
1482                         op->ora_e->e_name = op->o_req_dn;
1483                         op->ora_e->e_nname = op->o_req_ndn;
1484                         freeReqDn = 0;
1485                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1486                         if( rc != LDAP_SUCCESS ) {
1487                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1488                                 "mods2entry (%s)\n",
1489                                         si->si_ridtxt, text, 0 );
1490                         } else {
1491                                 rc = op->o_bd->be_add( op, &rs );
1492                                 Debug( LDAP_DEBUG_SYNC,
1493                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1494                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1495                         }
1496                         if ( e == op->ora_e )
1497                                 be_entry_release_w( op, op->ora_e );
1498                 } else {
1499                         op->orm_modlist = modlist;
1500                         op->o_bd = si->si_wbe;
1501                         rc = op->o_bd->be_modify( op, &rs );
1502                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1503                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1504                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1505                         op->o_bd = si->si_be;
1506                 }
1507                 break;
1508         case LDAP_REQ_MODRDN:
1509                 if ( BER_BVISNULL( &rdn ) ) goto done;
1510
1511                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1512                         goto done;
1513                 }
1514                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1515                         goto done;
1516                 }
1517                 if ( !BER_BVISNULL( &sup ) ) {
1518                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1519                                 goto done;
1520                         }
1521                         op->orr_newSup = &psup;
1522                         op->orr_nnewSup = &nsup;
1523                 } else {
1524                         op->orr_newSup = NULL;
1525                         op->orr_nnewSup = NULL;
1526                 }
1527                 op->orr_newrdn = prdn;
1528                 op->orr_nnewrdn = nrdn;
1529                 op->orr_deleteoldrdn = deleteOldRdn;
1530                 op->orr_modlist = NULL;
1531                 if ( slap_modrdn2mods( op, &rs ) ) {
1532                         goto done;
1533                 }
1534
1535                 /* Append modlist for operational attrs */
1536                 {
1537                         Modifications *m;
1538
1539                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1540                                 ;
1541                         m->sml_next = modlist;
1542                         modlist = NULL;
1543                 }
1544                 rc = op->o_bd->be_modrdn( op, &rs );
1545                 slap_mods_free( op->orr_modlist, 1 );
1546                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1547                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1548                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1549                 break;
1550         case LDAP_REQ_DELETE:
1551                 rc = op->o_bd->be_delete( op, &rs );
1552                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1553                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1554                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1555                 break;
1556         }
1557 done:
1558         slap_graduate_commit_csn( op );
1559         op->o_bd = si->si_be;
1560         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1561         BER_BVZERO( &op->o_csn );
1562         if ( modlist ) {
1563                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1564         }
1565         if ( !BER_BVISNULL( &rdn ) ) {
1566                 if ( !BER_BVISNULL( &nsup ) ) {
1567                         ch_free( nsup.bv_val );
1568                 }
1569                 if ( !BER_BVISNULL( &psup ) ) {
1570                         ch_free( psup.bv_val );
1571                 }
1572                 if ( !BER_BVISNULL( &nrdn ) ) {
1573                         ch_free( nrdn.bv_val );
1574                 }
1575                 if ( !BER_BVISNULL( &prdn ) ) {
1576                         ch_free( prdn.bv_val );
1577                 }
1578         }
1579         if ( freeReqDn ) {
1580                 ch_free( op->o_req_ndn.bv_val );
1581                 ch_free( op->o_req_dn.bv_val );
1582         }
1583         ber_free( ber, 0 );
1584         return rc;
1585 }
1586
1587 static int
1588 syncrepl_message_to_entry(
1589         syncinfo_t      *si,
1590         Operation       *op,
1591         LDAPMessage     *msg,
1592         Modifications   **modlist,
1593         Entry                   **entry,
1594         int             syncstate
1595 )
1596 {
1597         Entry           *e = NULL;
1598         BerElement      *ber = NULL;
1599         Modifications   tmp;
1600         Modifications   *mod;
1601         Modifications   **modtail = modlist;
1602
1603         const char      *text;
1604         char txtbuf[SLAP_TEXT_BUFLEN];
1605         size_t textlen = sizeof txtbuf;
1606
1607         struct berval   bdn = BER_BVNULL, dn, ndn;
1608         int             rc, is_ctx;
1609
1610         *modlist = NULL;
1611
1612         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1613                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1614                         "Message type should be entry (%d)",
1615                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1616                 return -1;
1617         }
1618
1619         op->o_tag = LDAP_REQ_ADD;
1620
1621         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1622         if ( rc != LDAP_SUCCESS ) {
1623                 Debug( LDAP_DEBUG_ANY,
1624                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1625                         si->si_ridtxt, rc, 0 );
1626                 return rc;
1627         }
1628
1629         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1630                 /* NOTE: this could be done even before decoding the DN,
1631                  * although encoding errors wouldn't be detected */
1632                 rc = LDAP_SUCCESS;
1633                 goto done;
1634         }
1635
1636         if ( entry == NULL ) {
1637                 return -1;
1638         }
1639
1640         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1641         ber_dupbv( &op->o_req_dn, &dn );
1642         ber_dupbv( &op->o_req_ndn, &ndn );
1643         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1644         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1645
1646         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1647
1648         e = entry_alloc();
1649         e->e_name = op->o_req_dn;
1650         e->e_nname = op->o_req_ndn;
1651
1652         while ( ber_remaining( ber ) ) {
1653                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1654                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1655                 {
1656                         break;
1657                 }
1658
1659                 /* Drop all updates to the contextCSN of the context entry
1660                  * (ITS#4622, etc.)
1661                  */
1662                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1663                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1664                         ber_bvarray_free( tmp.sml_values );
1665                         continue;
1666                 }
1667
1668                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1669
1670                 mod->sml_op = LDAP_MOD_REPLACE;
1671                 mod->sml_flags = 0;
1672                 mod->sml_next = NULL;
1673                 mod->sml_desc = NULL;
1674                 mod->sml_type = tmp.sml_type;
1675                 mod->sml_values = tmp.sml_values;
1676                 mod->sml_nvalues = NULL;
1677
1678                 *modtail = mod;
1679                 modtail = &mod->sml_next;
1680         }
1681
1682         if ( *modlist == NULL ) {
1683                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1684                         si->si_ridtxt, 0, 0 );
1685                 rc = -1;
1686                 goto done;
1687         }
1688
1689         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1690
1691         if ( rc != LDAP_SUCCESS ) {
1692                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1693                         si->si_ridtxt, text, 0 );
1694                 goto done;
1695         }
1696
1697         /* Strip out dynamically generated attrs */
1698         for ( modtail = modlist; *modtail ; ) {
1699                 mod = *modtail;
1700                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1701                         *modtail = mod->sml_next;
1702                         slap_mod_free( &mod->sml_mod, 0 );
1703                         ch_free( mod );
1704                 } else {
1705                         modtail = &mod->sml_next;
1706                 }
1707         }
1708
1709         /* Strip out attrs in exattrs list */
1710         for ( modtail = modlist; *modtail ; ) {
1711                 mod = *modtail;
1712                 if ( ldap_charray_inlist( si->si_exattrs,
1713                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1714                 {
1715                         *modtail = mod->sml_next;
1716                         slap_mod_free( &mod->sml_mod, 0 );
1717                         ch_free( mod );
1718                 } else {
1719                         modtail = &mod->sml_next;
1720                 }
1721         }
1722
1723         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1724         if( rc != LDAP_SUCCESS ) {
1725                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1726                         si->si_ridtxt, text, 0 );
1727         }
1728
1729 done:
1730         ber_free( ber, 0 );
1731         if ( rc != LDAP_SUCCESS ) {
1732                 if ( e ) {
1733                         entry_free( e );
1734                         e = NULL;
1735                 }
1736         }
1737         if ( entry )
1738                 *entry = e;
1739
1740         return rc;
1741 }
1742
1743 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1744
1745 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1746  * entry if a previous refresh was interrupted before sending us a new
1747  * context state. We try to compare the new entry to the existing entry
1748  * and ignore the new entry if they are the same.
1749  *
1750  * Also, we may get an update where the entryDN has changed, due to
1751  * a ModDn on the provider. We detect this as well, so we can issue
1752  * the corresponding operation locally.
1753  *
1754  * In the case of a modify, we get a list of all the attributes
1755  * in the original entry. Rather than deleting the entry and re-adding it,
1756  * we issue a Modify request that deletes all the attributes and adds all
1757  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1758  * entry.
1759  *
1760  * We otherwise distinguish ModDN from Modify; in the case of
1761  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1762  * operational attributes from the entry, and do a regular ModDN.
1763  */
1764 typedef struct dninfo {
1765         Entry *new_entry;
1766         struct berval dn;
1767         struct berval ndn;
1768         int renamed;    /* Was an existing entry renamed? */
1769         int delOldRDN;  /* Was old RDN deleted? */
1770         Modifications **modlist;        /* the modlist we received */
1771         Modifications *mods;    /* the modlist we compared */
1772 } dninfo;
1773
1774 static int
1775 syncrepl_entry(
1776         syncinfo_t* si,
1777         Operation *op,
1778         Entry* entry,
1779         Modifications** modlist,
1780         int syncstate,
1781         struct berval* syncUUID )
1782 {
1783         Backend *be = op->o_bd;
1784         slap_callback   cb = { NULL, NULL, NULL, NULL };
1785         struct berval   *syncuuid_bv = NULL;
1786         struct berval   syncUUID_strrep = BER_BVNULL;
1787         struct berval   uuid_bv = BER_BVNULL;
1788
1789         SlapReply       rs_search = {REP_RESULT};
1790         SlapReply       rs_delete = {REP_RESULT};
1791         SlapReply       rs_add = {REP_RESULT};
1792         SlapReply       rs_modify = {REP_RESULT};
1793         Filter f = {0};
1794 #ifdef LDAP_COMP_MATCH
1795         AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
1796 #else
1797         AttributeAssertion ava = { NULL, BER_BVNULL };
1798 #endif
1799         int rc = LDAP_SUCCESS;
1800
1801         struct berval pdn = BER_BVNULL;
1802         dninfo dni = {0};
1803         int     retry = 1;
1804
1805         switch( syncstate ) {
1806         case LDAP_SYNC_PRESENT:
1807                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1808                                         si->si_ridtxt,
1809                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
1810                 break;
1811         case LDAP_SYNC_ADD:
1812                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1813                                         si->si_ridtxt,
1814                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
1815                 break;
1816         case LDAP_SYNC_DELETE:
1817                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1818                                         si->si_ridtxt,
1819                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
1820                 break;
1821         case LDAP_SYNC_MODIFY:
1822                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s %s\n",
1823                                         si->si_ridtxt,
1824                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
1825                 break;
1826         default:
1827                 Debug( LDAP_DEBUG_ANY, "syncrepl_entry: %s %s\n",
1828                                         si->si_ridtxt,
1829                                         "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
1830         }
1831
1832         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1833                 if ( !si->si_refreshPresent ) {
1834                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1835                         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1836                                 syncuuid_cmp, avl_dup_error ) )
1837                         {
1838                                 ber_bvfree( syncuuid_bv );
1839                                 syncuuid_bv = NULL;
1840                         }
1841                 }
1842         }
1843
1844         if ( syncstate == LDAP_SYNC_PRESENT ) {
1845                 return 0;
1846         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1847                 if ( entry == NULL ) {
1848                         return 0;
1849                 }
1850         }
1851
1852         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1853         if ( syncstate != LDAP_SYNC_DELETE ) {
1854                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1855
1856                 if ( a == NULL ) {
1857                         /* add if missing */
1858                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1859                                 &syncUUID_strrep, syncUUID );
1860
1861                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1862                         /* replace only if necessary */
1863                         if ( a->a_nvals != a->a_vals ) {
1864                                 ber_memfree( a->a_nvals[0].bv_val );
1865                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1866                         }
1867                         ber_memfree( a->a_vals[0].bv_val );
1868                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1869                 }
1870         }
1871
1872         f.f_choice = LDAP_FILTER_EQUALITY;
1873         f.f_ava = &ava;
1874         ava.aa_desc = slap_schema.si_ad_entryUUID;
1875         ava.aa_value = *syncUUID;
1876
1877         if ( syncuuid_bv ) {
1878                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1879                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1880         }
1881         op->ors_filter = &f;
1882
1883         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1884         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1885                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1886         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1887         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1888                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1889         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1890         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1891
1892         op->o_tag = LDAP_REQ_SEARCH;
1893         op->ors_scope = LDAP_SCOPE_SUBTREE;
1894         op->ors_deref = LDAP_DEREF_NEVER;
1895
1896         /* get the entry for this UUID */
1897         op->o_req_dn = si->si_base;
1898         op->o_req_ndn = si->si_base;
1899
1900         op->o_time = slap_get_time();
1901         op->ors_tlimit = SLAP_NO_LIMIT;
1902         op->ors_slimit = 1;
1903
1904         op->ors_attrs = slap_anlist_all_attributes;
1905         op->ors_attrsonly = 0;
1906
1907         /* set callback function */
1908         op->o_callback = &cb;
1909         cb.sc_response = dn_callback;
1910         cb.sc_private = &dni;
1911         dni.new_entry = entry;
1912         dni.modlist = modlist;
1913
1914         if ( limits_check( op, &rs_search ) == 0 ) {
1915                 rc = be->be_search( op, &rs_search );
1916                 Debug( LDAP_DEBUG_SYNC,
1917                                 "syncrepl_entry: %s be_search (%d)\n",
1918                                 si->si_ridtxt, rc, 0 );
1919         }
1920
1921         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1922                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1923         }
1924
1925         cb.sc_response = null_callback;
1926         cb.sc_private = si;
1927
1928         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1929                 Debug( LDAP_DEBUG_SYNC,
1930                                 "syncrepl_entry: %s %s\n",
1931                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
1932         } else {
1933                 Debug( LDAP_DEBUG_SYNC,
1934                                 "syncrepl_entry: %s %s\n",
1935                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
1936         }
1937
1938         slap_op_time( &op->o_time, &op->o_tincr );
1939         switch ( syncstate ) {
1940         case LDAP_SYNC_ADD:
1941         case LDAP_SYNC_MODIFY:
1942                 {
1943                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
1944                         if ( a ) {
1945                                 /* FIXME: op->o_csn is assumed to be
1946                                  * on the thread's slab; this needs
1947                                  * to be cleared ASAP.
1948                                  * What happens if already present?
1949                                  */
1950                                 assert( BER_BVISNULL( &op->o_csn ) );
1951                                 op->o_csn = a->a_vals[0];
1952                         }
1953                 }
1954 retry_add:;
1955                 if ( BER_BVISNULL( &dni.dn ) ) {
1956
1957                         op->o_req_dn = entry->e_name;
1958                         op->o_req_ndn = entry->e_nname;
1959                         op->o_tag = LDAP_REQ_ADD;
1960                         op->ora_e = entry;
1961                         op->o_bd = si->si_wbe;
1962
1963                         rc = op->o_bd->be_add( op, &rs_add );
1964                         Debug( LDAP_DEBUG_SYNC,
1965                                         "syncrepl_entry: %s be_add (%d)\n",
1966                                         si->si_ridtxt, rc, 0 );
1967                         switch ( rs_add.sr_err ) {
1968                         case LDAP_SUCCESS:
1969                                 if ( op->ora_e == entry ) {
1970                                         be_entry_release_w( op, entry );
1971                                 }
1972                                 entry = NULL;
1973                                 break;
1974
1975                         case LDAP_REFERRAL:
1976                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
1977                          * only if the suffix entry is not present */
1978                         case LDAP_NO_SUCH_OBJECT:
1979                                 rc = syncrepl_add_glue( op, entry );
1980                                 entry = NULL;
1981                                 break;
1982
1983                         /* if an entry was added via syncrepl_add_glue(),
1984                          * it likely has no entryUUID, so the previous
1985                          * be_search() doesn't find it.  In this case,
1986                          * give syncrepl a chance to modify it. Also
1987                          * allow for entries that were recreated with the
1988                          * same DN but a different entryUUID.
1989                          */
1990                         case LDAP_ALREADY_EXISTS:
1991                                 if ( retry ) {
1992                                         Operation       op2 = *op;
1993                                         SlapReply       rs2 = { 0 };
1994                                         slap_callback   cb2 = { 0 };
1995
1996                                         op2.o_bd = be;
1997                                         op2.o_tag = LDAP_REQ_SEARCH;
1998                                         op2.o_req_dn = entry->e_name;
1999                                         op2.o_req_ndn = entry->e_nname;
2000                                         op2.ors_scope = LDAP_SCOPE_BASE;
2001                                         op2.ors_deref = LDAP_DEREF_NEVER;
2002                                         op2.ors_attrs = slap_anlist_all_attributes;
2003                                         op2.ors_attrsonly = 0;
2004                                         op2.ors_limit = NULL;
2005                                         op2.ors_slimit = 1;
2006                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2007
2008                                         f.f_choice = LDAP_FILTER_PRESENT;
2009                                         f.f_desc = slap_schema.si_ad_objectClass;
2010                                         op2.ors_filter = &f;
2011                                         op2.ors_filterstr = generic_filterstr;
2012
2013                                         op2.o_callback = &cb2;
2014                                         cb2.sc_response = dn_callback;
2015                                         cb2.sc_private = &dni;
2016
2017                                         rc = be->be_search( &op2, &rs2 );
2018                                         if ( rc ) goto done;
2019
2020                                         retry = 0;
2021                                         slap_op_time( &op->o_time, &op->o_tincr );
2022                                         goto retry_add;
2023                                 }
2024                                 /* FALLTHRU */
2025
2026                         default:
2027                                 Debug( LDAP_DEBUG_ANY,
2028                                         "syncrepl_entry: %s be_add failed (%d)\n",
2029                                         si->si_ridtxt, rs_add.sr_err, 0 );
2030                                 break;
2031                         }
2032                         op->o_bd = be;
2033                         goto done;
2034                 }
2035                 /* FALLTHRU */
2036                 op->o_req_dn = dni.dn;
2037                 op->o_req_ndn = dni.ndn;
2038                 if ( dni.renamed ) {
2039                         struct berval noldp, newp, nnewp;
2040
2041                         op->o_tag = LDAP_REQ_MODRDN;
2042                         dnRdn( &entry->e_name, &op->orr_newrdn );
2043                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2044
2045                         dnParent( &dni.ndn, &noldp );
2046                         dnParent( &entry->e_nname, &nnewp );
2047                         if ( !dn_match( &noldp, &nnewp ) ) {
2048                                 dnParent( &entry->e_name, &newp );
2049                                 op->orr_newSup = &newp;
2050                                 op->orr_nnewSup = &nnewp;
2051                         } else {
2052                                 op->orr_newSup = NULL;
2053                                 op->orr_nnewSup = NULL;
2054                         }
2055                         op->orr_deleteoldrdn = dni.delOldRDN;
2056                         op->orr_modlist = NULL;
2057                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2058                                 goto done;
2059                         }
2060
2061                         /* RDNs must be NUL-terminated for back-ldap */
2062                         noldp = op->orr_newrdn;
2063                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2064                         noldp = op->orr_nnewrdn;
2065                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2066
2067                         /* Setup opattrs too */
2068                         {
2069                                 AttributeDescription *opattrs[] = {
2070                                         slap_schema.si_ad_entryCSN,
2071                                         slap_schema.si_ad_modifiersName,
2072                                         slap_schema.si_ad_modifyTimestamp,
2073                                         NULL
2074                                 };
2075                                 Modifications *mod, **modtail, **ml;
2076                                 int i;
2077
2078                                 for ( mod = op->orr_modlist;
2079                                         mod->sml_next;
2080                                         mod = mod->sml_next )
2081                                         ;
2082                                 modtail = &mod->sml_next;
2083
2084                                 /* pull mod off incoming modlist, append to orr_modlist */
2085                                 for ( i = 0; opattrs[i]; i++ ) {
2086                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2087                                         {
2088                                                 if ( (*ml)->sml_desc == opattrs[i] ) {
2089                                                         mod = *ml;
2090                                                         *ml = mod->sml_next;
2091                                                         mod->sml_next = NULL;
2092                                                         *modtail = mod;
2093                                                         modtail = &mod->sml_next;
2094                                                         break;
2095                                                 }
2096                                         }
2097                                 }
2098                         }
2099                         op->o_bd = si->si_wbe;
2100                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2101                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2102                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2103
2104                         slap_mods_free( op->orr_modlist, 1 );
2105                         Debug( LDAP_DEBUG_SYNC,
2106                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2107                                         si->si_ridtxt, rc, 0 );
2108                         op->o_bd = be;
2109                         goto done;
2110                 }
2111                 if ( dni.mods ) {
2112                         op->o_tag = LDAP_REQ_MODIFY;
2113                         op->orm_modlist = dni.mods;
2114                         op->orm_no_opattrs = 1;
2115                         op->o_bd = si->si_wbe;
2116
2117                         rc = op->o_bd->be_modify( op, &rs_modify );
2118                         slap_mods_free( op->orm_modlist, 1 );
2119                         Debug( LDAP_DEBUG_SYNC,
2120                                         "syncrepl_entry: %s be_modify (%d)\n",
2121                                         si->si_ridtxt, rc, 0 );
2122                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2123                                 Debug( LDAP_DEBUG_ANY,
2124                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2125                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2126                         }
2127                         op->o_bd = be;
2128                 } else {
2129                         Debug( LDAP_DEBUG_SYNC,
2130                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2131                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2132                 }
2133                 goto done;
2134         case LDAP_SYNC_DELETE :
2135                 if ( !BER_BVISNULL( &dni.dn ) ) {
2136                         op->o_req_dn = dni.dn;
2137                         op->o_req_ndn = dni.ndn;
2138                         op->o_tag = LDAP_REQ_DELETE;
2139                         op->o_bd = si->si_wbe;
2140                         rc = op->o_bd->be_delete( op, &rs_delete );
2141                         Debug( LDAP_DEBUG_SYNC,
2142                                         "syncrepl_entry: %s be_delete (%d)\n",
2143                                         si->si_ridtxt, rc, 0 );
2144
2145                         while ( rs_delete.sr_err == LDAP_SUCCESS
2146                                 && op->o_delete_glue_parent ) {
2147                                 op->o_delete_glue_parent = 0;
2148                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2149                                         slap_callback cb = { NULL };
2150                                         cb.sc_response = slap_null_cb;
2151                                         dnParent( &op->o_req_ndn, &pdn );
2152                                         op->o_req_dn = pdn;
2153                                         op->o_req_ndn = pdn;
2154                                         op->o_callback = &cb;
2155                                         op->o_bd->be_delete( op, &rs_delete );
2156                                 } else {
2157                                         break;
2158                                 }
2159                         }
2160                         op->o_bd = be;
2161                 }
2162                 goto done;
2163
2164         default :
2165                 Debug( LDAP_DEBUG_ANY,
2166                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2167                 goto done;
2168         }
2169
2170 done:
2171         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2172                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2173                 BER_BVZERO( &syncUUID_strrep );
2174         }
2175         if ( !BER_BVISNULL( &dni.ndn ) ) {
2176                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2177         }
2178         if ( !BER_BVISNULL( &dni.dn ) ) {
2179                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2180         }
2181         if ( entry )
2182                 entry_free( entry );
2183         BER_BVZERO( &op->o_csn );
2184         return rc;
2185 }
2186
2187 static struct berval gcbva[] = {
2188         BER_BVC("top"),
2189         BER_BVC("glue"),
2190         BER_BVNULL
2191 };
2192
2193 #define NP_DELETE_ONE   2
2194
2195 static void
2196 syncrepl_del_nonpresent(
2197         Operation *op,
2198         syncinfo_t *si,
2199         BerVarray uuids,
2200         struct berval *cookiecsn )
2201 {
2202         Backend* be = op->o_bd;
2203         slap_callback   cb = { NULL };
2204         SlapReply       rs_search = {REP_RESULT};
2205         SlapReply       rs_delete = {REP_RESULT};
2206         SlapReply       rs_modify = {REP_RESULT};
2207         struct nonpresent_entry *np_list, *np_prev;
2208         int rc;
2209         AttributeName   an[2];
2210
2211         struct berval pdn = BER_BVNULL;
2212         struct berval csn;
2213
2214         op->o_req_dn = si->si_base;
2215         op->o_req_ndn = si->si_base;
2216
2217         cb.sc_response = nonpresent_callback;
2218         cb.sc_private = si;
2219
2220         op->o_callback = &cb;
2221         op->o_tag = LDAP_REQ_SEARCH;
2222         op->ors_scope = si->si_scope;
2223         op->ors_deref = LDAP_DEREF_NEVER;
2224         op->o_time = slap_get_time();
2225         op->ors_tlimit = SLAP_NO_LIMIT;
2226
2227
2228         if ( uuids ) {
2229                 Filter uf;
2230 #ifdef LDAP_COMP_MATCH
2231                 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
2232 #else
2233                 AttributeAssertion eq = { NULL, BER_BVNULL };
2234 #endif
2235                 int i;
2236
2237                 op->ors_attrsonly = 1;
2238                 op->ors_attrs = slap_anlist_no_attrs;
2239                 op->ors_limit = NULL;
2240                 op->ors_filter = &uf;
2241
2242                 uf.f_ava = &eq;
2243                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2244                 uf.f_next = NULL;
2245                 uf.f_choice = LDAP_FILTER_EQUALITY;
2246                 si->si_refreshDelete |= NP_DELETE_ONE;
2247
2248                 for (i=0; uuids[i].bv_val; i++) {
2249                         op->ors_slimit = 1;
2250                         slap_uuidstr_from_normalized( &uf.f_av_value, &uuids[i],
2251                                 op->o_tmpmemctx );
2252                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2253                         op->o_tmpfree( uf.f_av_value.bv_val, op->o_tmpmemctx );
2254                         uf.f_av_value = uuids[i];
2255                         rc = be->be_search( op, &rs_search );
2256                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2257                 }
2258                 si->si_refreshDelete ^= NP_DELETE_ONE;
2259         } else {
2260                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2261                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2262                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2263                 op->ors_attrs = an;
2264                 op->ors_slimit = SLAP_NO_LIMIT;
2265                 op->ors_attrsonly = 0;
2266                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2267                 op->ors_filterstr = si->si_filterstr;
2268                 op->o_nocaching = 1;
2269
2270                 if ( limits_check( op, &rs_search ) == 0 ) {
2271                         rc = be->be_search( op, &rs_search );
2272                 }
2273                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2274         }
2275
2276         op->o_nocaching = 0;
2277
2278         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2279
2280                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2281                         csn = *cookiecsn;
2282                 } else {
2283                         csn = si->si_syncCookie.ctxcsn[0];
2284                 }
2285
2286                 op->o_bd = si->si_wbe;
2287                 slap_queue_csn( op, &csn );
2288
2289                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2290                 while ( np_list != NULL ) {
2291                         LDAP_LIST_REMOVE( np_list, npe_link );
2292                         np_prev = np_list;
2293                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2294                         op->o_tag = LDAP_REQ_DELETE;
2295                         op->o_callback = &cb;
2296                         cb.sc_response = null_callback;
2297                         cb.sc_private = si;
2298                         op->o_req_dn = *np_prev->npe_name;
2299                         op->o_req_ndn = *np_prev->npe_nname;
2300                         rc = op->o_bd->be_delete( op, &rs_delete );
2301                         Debug( LDAP_DEBUG_SYNC,
2302                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2303                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2304
2305                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2306                                 Modifications mod1, mod2;
2307                                 mod1.sml_op = LDAP_MOD_REPLACE;
2308                                 mod1.sml_flags = 0;
2309                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2310                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2311                                 mod1.sml_values = &gcbva[0];
2312                                 mod1.sml_nvalues = NULL;
2313                                 mod1.sml_next = &mod2;
2314
2315                                 mod2.sml_op = LDAP_MOD_REPLACE;
2316                                 mod2.sml_flags = 0;
2317                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2318                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2319                                 mod2.sml_values = &gcbva[1];
2320                                 mod2.sml_nvalues = NULL;
2321                                 mod2.sml_next = NULL;
2322
2323                                 op->o_tag = LDAP_REQ_MODIFY;
2324                                 op->orm_modlist = &mod1;
2325
2326                                 rc = op->o_bd->be_modify( op, &rs_modify );
2327                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2328                         }
2329
2330                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2331                                         op->o_delete_glue_parent ) {
2332                                 op->o_delete_glue_parent = 0;
2333                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2334                                         slap_callback cb = { NULL };
2335                                         cb.sc_response = slap_null_cb;
2336                                         dnParent( &op->o_req_ndn, &pdn );
2337                                         op->o_req_dn = pdn;
2338                                         op->o_req_ndn = pdn;
2339                                         op->o_callback = &cb;
2340                                         /* give it a root privil ? */
2341                                         op->o_bd->be_delete( op, &rs_delete );
2342                                 } else {
2343                                         break;
2344                                 }
2345                         }
2346
2347                         op->o_delete_glue_parent = 0;
2348
2349                         ber_bvfree( np_prev->npe_name );
2350                         ber_bvfree( np_prev->npe_nname );
2351                         ch_free( np_prev );
2352                 }
2353
2354                 slap_graduate_commit_csn( op );
2355                 op->o_bd = be;
2356
2357                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2358                 BER_BVZERO( &op->o_csn );
2359         }
2360
2361         return;
2362 }
2363
2364 int
2365 syncrepl_add_glue(
2366         Operation* op,
2367         Entry *e )
2368 {
2369         Backend *be = op->o_bd;
2370         slap_callback cb = { NULL };
2371         Attribute       *a;
2372         int     rc;
2373         int suffrdns;
2374         int i;
2375         struct berval dn = BER_BVNULL;
2376         struct berval ndn = BER_BVNULL;
2377         Entry   *glue;
2378         SlapReply       rs_add = {REP_RESULT};
2379         struct berval   ptr, nptr;
2380         char            *comma;
2381
2382         op->o_tag = LDAP_REQ_ADD;
2383         op->o_callback = &cb;
2384         cb.sc_response = null_callback;
2385         cb.sc_private = NULL;
2386
2387         dn = e->e_name;
2388         ndn = e->e_nname;
2389
2390         /* count RDNs in suffix */
2391         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2392                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2393                         comma++;
2394                         ptr.bv_len -= comma - ptr.bv_val;
2395                         ptr.bv_val = comma;
2396                         i++;
2397                 }
2398                 suffrdns = i;
2399         } else {
2400                 /* suffix is "" */
2401                 suffrdns = 0;
2402         }
2403
2404         /* Start with BE suffix */
2405         ptr = dn;
2406         for ( i = 0; i < suffrdns; i++ ) {
2407                 comma = ber_bvrchr( &ptr, ',' );
2408                 if ( comma != NULL ) {
2409                         ptr.bv_len = comma - ptr.bv_val;
2410                 } else {
2411                         ptr.bv_len = 0;
2412                         break;
2413                 }
2414         }
2415
2416         if ( !BER_BVISEMPTY( &ptr ) ) {
2417                 dn.bv_len -= ptr.bv_len + 1;
2418                 dn.bv_val += ptr.bv_len + 1;
2419         }
2420
2421         /* the normalizedDNs are always the same length, no counting
2422          * required.
2423          */
2424         nptr = ndn;
2425         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2426                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2427                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2428
2429                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2430
2431         } else {
2432                 nptr.bv_len = 0;
2433         }
2434
2435         while ( ndn.bv_val > e->e_nname.bv_val ) {
2436                 glue = entry_alloc();
2437                 ber_dupbv( &glue->e_name, &dn );
2438                 ber_dupbv( &glue->e_nname, &ndn );
2439
2440                 a = attr_alloc( slap_schema.si_ad_objectClass );
2441
2442                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2443                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2444                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2445                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2446
2447                 a->a_nvals = a->a_vals;
2448
2449                 a->a_next = glue->e_attrs;
2450                 glue->e_attrs = a;
2451
2452                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2453
2454                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2455                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2456                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2457
2458                 a->a_nvals = a->a_vals;
2459
2460                 a->a_next = glue->e_attrs;
2461                 glue->e_attrs = a;
2462
2463                 op->o_req_dn = glue->e_name;
2464                 op->o_req_ndn = glue->e_nname;
2465                 op->ora_e = glue;
2466                 rc = be->be_add ( op, &rs_add );
2467                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2468                         if ( op->ora_e == glue )
2469                                 be_entry_release_w( op, glue );
2470                 } else {
2471                 /* incl. ALREADY EXIST */
2472                         entry_free( glue );
2473                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2474                                 entry_free( e );
2475                                 return rc;
2476                         }
2477                 }
2478
2479                 /* Move to next child */
2480                 comma = ber_bvrchr( &ptr, ',' );
2481                 if ( comma == NULL ) {
2482                         break;
2483                 }
2484                 ptr.bv_len = comma - ptr.bv_val;
2485
2486                 dn.bv_val = ++comma;
2487                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2488
2489                 comma = ber_bvrchr( &nptr, ',' );
2490                 assert( comma != NULL );
2491                 nptr.bv_len = comma - nptr.bv_val;
2492
2493                 ndn.bv_val = ++comma;
2494                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2495         }
2496
2497         op->o_req_dn = e->e_name;
2498         op->o_req_ndn = e->e_nname;
2499         op->ora_e = e;
2500         rc = be->be_add ( op, &rs_add );
2501         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2502                 if ( op->ora_e == e )
2503                         be_entry_release_w( op, e );
2504         } else {
2505                 entry_free( e );
2506         }
2507
2508         return rc;
2509 }
2510
2511 static int
2512 syncrepl_updateCookie(
2513         syncinfo_t *si,
2514         Operation *op,
2515         struct berval *pdn,
2516         struct sync_cookie *syncCookie )
2517 {
2518         Backend *be = op->o_bd;
2519         Modifications mod[2];
2520         struct berval first = BER_BVNULL;
2521
2522         int rc, i, j;
2523
2524         slap_callback cb = { NULL };
2525         SlapReply       rs_modify = {REP_RESULT};
2526
2527         mod[0].sml_op = LDAP_MOD_DELETE;
2528         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2529         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2530         mod[0].sml_values = NULL;
2531         mod[0].sml_nvalues = NULL;
2532         mod[0].sml_next = &mod[1];
2533
2534         mod[1].sml_op = LDAP_MOD_ADD;
2535         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2536         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2537         mod[1].sml_values = NULL;
2538         mod[1].sml_nvalues = NULL;
2539         mod[1].sml_next = NULL;
2540
2541         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2542
2543         for ( i=0; i<syncCookie->numcsns; i++ ) {
2544                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2545                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2546                                 continue;
2547                         if ( ber_bvcmp( &syncCookie->ctxcsn[i],
2548                                 &si->si_cookieState->cs_vals[j] ) > 0 ) {
2549                                 ber_bvarray_add_x( &mod[0].sml_values,
2550                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2551                                 ber_bvarray_add_x( &mod[1].sml_values,
2552                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2553                                 if ( BER_BVISNULL( &first ))
2554                                         first = syncCookie->ctxcsn[i];
2555                         }
2556                         break;
2557                 }
2558                 /* there was no match for this SID, it's a new CSN */
2559                 if ( j == si->si_cookieState->cs_num ) {
2560                         ber_bvarray_add_x( &mod[1].sml_values,
2561                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2562                         if ( BER_BVISNULL( &first ))
2563                                 first = syncCookie->ctxcsn[i];
2564                 }
2565         }
2566         op->o_bd = si->si_wbe;
2567         slap_queue_csn( op, &first );
2568
2569         op->o_tag = LDAP_REQ_MODIFY;
2570
2571         cb.sc_response = null_callback;
2572         cb.sc_private = si;
2573
2574         op->o_callback = &cb;
2575         op->o_req_dn = op->o_bd->be_suffix[0];
2576         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2577
2578         /* update contextCSN */
2579         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2580
2581         if ( mod[0].sml_values )
2582                 op->orm_modlist = mod;
2583         else
2584                 op->orm_modlist = &mod[1];
2585
2586         op->orm_no_opattrs = 1;
2587         rc = op->o_bd->be_modify( op, &rs_modify );
2588         op->o_msgid = 0;
2589
2590         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2591                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2592                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2593                 /* If we replaced any old values */
2594                 if ( mod[0].sml_values ) {
2595                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2596                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2597                                         if ( mod[0].sml_values[i].bv_val !=
2598                                                 si->si_cookieState->cs_vals[j].bv_val )
2599                                                 continue;
2600                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2601                                                 &mod[1].sml_values[i] );
2602                                         break;
2603                                 }
2604                         }
2605                 } else {
2606                         /* Else we just added */
2607                         si->si_cookieState->cs_num += syncCookie->numcsns;
2608                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2609                         free( si->si_cookieState->cs_sids );
2610                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2611                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num );
2612                 }
2613
2614                 si->si_cookieState->cs_age++;
2615                 si->si_cookieAge = si->si_cookieState->cs_age;
2616         } else {
2617                 Debug( LDAP_DEBUG_ANY,
2618                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2619                         si->si_ridtxt, rs_modify.sr_err, 0 );
2620         }
2621         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2622
2623         slap_graduate_commit_csn( op );
2624         op->o_bd = be;
2625         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2626         BER_BVZERO( &op->o_csn );
2627         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2628         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2629         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2630
2631         return rc;
2632 }
2633
2634 static void
2635 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2636         Modifications ***mret, Modifications ***mcur )
2637 {
2638         int i, j;
2639         Modifications *mod, **modtail;
2640
2641         modtail = *mret;
2642
2643         if ( old ) {
2644                 int n, o, d, a, *adds, *dels;
2645                 /* count old and new */
2646                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2647                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2648
2649                 adds = op->o_tmpalloc( sizeof(int) * n, op->o_tmpmemctx );
2650                 dels = op->o_tmpalloc( sizeof(int) * o, op->o_tmpmemctx );
2651                 d = 0;
2652                 a = 0;
2653                 i = 0;
2654                 j = 0;
2655
2656                 while ( i < o && j < n ) {
2657                         int k;
2658                         if ( bvmatch( &old->a_vals[i], &new->a_vals[j] ) ) {
2659                                 i++;
2660                                 j++;
2661                                 continue;
2662                         }
2663                         for ( k = j + 1; k<n; k++ ) {
2664                                 if ( bvmatch( &old->a_vals[i], &new->a_vals[k] ) ) {
2665                                         break;
2666                                 }
2667                         }
2668                         /* an old value was deleted */
2669                         if ( k == n ) {
2670                                 dels[d++] = i++;
2671                                 continue;
2672                         }
2673                         for ( k = i + 1; k < o; k++ ) {
2674                                 if ( bvmatch( &old->a_vals[k], &new->a_vals[j] ) ) {
2675                                         break;
2676                                 }
2677                         }
2678                         if ( k == o ) {
2679                                 adds[a++] = j++;
2680                         }
2681                 }
2682                 while ( i < o )
2683                         dels[d++] = i++;
2684                 while ( j < n )
2685                         adds[a++] = j++;
2686
2687                 /* all old values were deleted, just use the replace op */
2688                 if ( d == o ) {
2689                         i = j-1;
2690                 } else if ( d ) {
2691                 /* delete some values */
2692                         mod = ch_malloc( sizeof( Modifications ) );
2693                         mod->sml_op = LDAP_MOD_DELETE;
2694                         mod->sml_flags = 0;
2695                         mod->sml_desc = old->a_desc;
2696                         mod->sml_type = mod->sml_desc->ad_cname;
2697                         mod->sml_values = ch_malloc( ( d + 1 ) * sizeof(struct berval) );
2698                         if ( old->a_vals != old->a_nvals ) {
2699                                 mod->sml_nvalues = ch_malloc( ( d + 1 ) * sizeof(struct berval) );
2700                         } else {
2701                                 mod->sml_nvalues = NULL;
2702                         }
2703                         for ( i = 0; i < d; i++ ) {
2704                                 ber_dupbv( &mod->sml_values[i], &old->a_vals[dels[i]] );
2705                                 if ( mod->sml_nvalues ) {
2706                                         ber_dupbv( &mod->sml_nvalues[i], &old->a_nvals[dels[i]] );
2707                                 }
2708                         }
2709                         BER_BVZERO( &mod->sml_values[i] );
2710                         if ( mod->sml_nvalues ) {
2711                                 BER_BVZERO( &mod->sml_nvalues[i] );
2712                         }
2713                         *modtail = mod;
2714                         modtail = &mod->sml_next;
2715                         i = j;
2716                 }
2717                 op->o_tmpfree( dels, op->o_tmpmemctx );
2718                 /* some values were added */
2719                 if ( a && d < o ) {
2720                         mod = ch_malloc( sizeof( Modifications ) );
2721                         mod->sml_op = LDAP_MOD_ADD;
2722                         mod->sml_flags = 0;
2723                         mod->sml_desc = old->a_desc;
2724                         mod->sml_type = mod->sml_desc->ad_cname;
2725                         mod->sml_values = ch_malloc( ( a + 1 ) * sizeof(struct berval) );
2726                         if ( old->a_vals != old->a_nvals ) {
2727                                 mod->sml_nvalues = ch_malloc( ( a + 1 ) * sizeof(struct berval) );
2728                         } else {
2729                                 mod->sml_nvalues = NULL;
2730                         }
2731                         for ( i = 0; i < a; i++ ) {
2732                                 ber_dupbv( &mod->sml_values[i], &new->a_vals[adds[i]] );
2733                                 if ( mod->sml_nvalues ) {
2734                                         ber_dupbv( &mod->sml_nvalues[i], &new->a_nvals[adds[i]] );
2735                                 }
2736                         }
2737                         BER_BVZERO( &mod->sml_values[i] );
2738                         if ( mod->sml_nvalues ) {
2739                                 BER_BVZERO( &mod->sml_nvalues[i] );
2740                         }
2741                         *modtail = mod;
2742                         modtail = &mod->sml_next;
2743                         i = j;
2744                 }
2745                 op->o_tmpfree( adds, op->o_tmpmemctx );
2746         } else {
2747                 /* new attr, just use the new mod */
2748                 i = 0;
2749                 j = 1;
2750         }
2751         /* advance to next element */
2752         mod = **mcur;
2753         if ( mod ) {
2754                 if ( i != j ) {
2755                         **mcur = mod->sml_next;
2756                         *modtail = mod;
2757                         modtail = &mod->sml_next;
2758                 } else {
2759                         *mcur = &mod->sml_next;
2760                 }
2761         }
2762         *mret = modtail;
2763 }
2764
2765 static int
2766 dn_callback(
2767         Operation*      op,
2768         SlapReply*      rs )
2769 {
2770         dninfo *dni = op->o_callback->sc_private;
2771
2772         if ( rs->sr_type == REP_SEARCH ) {
2773                 if ( !BER_BVISNULL( &dni->dn ) ) {
2774                         Debug( LDAP_DEBUG_ANY,
2775                                 "dn_callback : consistency error - "
2776                                 "entryUUID is not unique\n", 0, 0, 0 );
2777                 } else {
2778                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2779                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2780                         /* If there is a new entry, see if it differs from the old.
2781                          * We compare the non-normalized values so that cosmetic changes
2782                          * in the provider are always propagated.
2783                          */
2784                         if ( dni->new_entry ) {
2785                                 Modifications **modtail, **ml;
2786                                 Attribute *old, *new;
2787                                 int i, is_ctx;
2788
2789                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2790                                         &op->o_bd->be_nsuffix[0] );
2791
2792                                 /* Did the DN change?
2793                                  */
2794                                 if ( !dn_match( &rs->sr_entry->e_name,
2795                                                 &dni->new_entry->e_name ) )
2796                                 {
2797                                         struct berval oldRDN, oldVal;
2798                                         AttributeDescription *ad = NULL;
2799                                         Attribute *a;
2800
2801                                         dni->renamed = 1;
2802                                         /* See if the oldRDN was deleted */
2803                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2804                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2805                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2806                                                 oldRDN.bv_val );
2807                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2808                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2809                                         a = attr_find( dni->new_entry->e_attrs, ad );
2810                                         if ( !a || value_find_ex( ad,
2811                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2812                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2813                                                 SLAP_MR_VALUE_OF_SYNTAX, a->a_nvals,
2814                                                 &oldVal, op->o_tmpmemctx ) != LDAP_SUCCESS )
2815                                         {
2816                                                 dni->delOldRDN = 1;
2817                                         }
2818                                         /* OK, this was just a modDN, we're done */
2819                                         return LDAP_SUCCESS;
2820                                 }
2821
2822                                 modtail = &dni->mods;
2823                                 ml = dni->modlist;
2824
2825                                 /* Make sure new entry is actually newer than old entry */
2826                                 old = attr_find( rs->sr_entry->e_attrs,
2827                                         slap_schema.si_ad_entryCSN );
2828                                 new = attr_find( dni->new_entry->e_attrs,
2829                                         slap_schema.si_ad_entryCSN );
2830                                 if ( new && old && ber_bvcmp( &old->a_vals[0],
2831                                         &new->a_vals[0] ) >= 0 ) {
2832                                         Debug( LDAP_DEBUG_SYNC,
2833                                                 "dn_callback : new entry is older than ours "
2834                                                 "%s ours %s, new %s\n",
2835                                                 rs->sr_entry->e_name.bv_val,
2836                                                 old->a_vals[0].bv_val,
2837                                                 new->a_vals[0].bv_val );
2838                                         return LDAP_SUCCESS;
2839                                 }
2840
2841                                 /* We assume that attributes are saved in the same order
2842                                  * in the remote and local databases. So if we walk through
2843                                  * the attributeDescriptions one by one they should match in
2844                                  * lock step. If not, look for an add or delete.
2845                                  */
2846                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2847                                                 old && new; )
2848                                 {
2849                                         /* If we've seen this before, use its mod now */
2850                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2851                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2852                                                 new = new->a_next;
2853                                                 continue;
2854                                         }
2855                                         /* Skip contextCSN */
2856                                         if ( is_ctx && old->a_desc ==
2857                                                 slap_schema.si_ad_contextCSN ) {
2858                                                 old = old->a_next;
2859                                                 continue;
2860                                         }
2861
2862                                         if ( old->a_desc != new->a_desc ) {
2863                                                 Modifications *mod;
2864                                                 Attribute *tmp;
2865
2866                                                 /* If it's just been re-added later,
2867                                                  * remember that we've seen it.
2868                                                  */
2869                                                 tmp = attr_find( new, old->a_desc );
2870                                                 if ( tmp ) {
2871                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2872                                                 } else {
2873                                                         /* If it's a new attribute, pull it in.
2874                                                          */
2875                                                         tmp = attr_find( old, new->a_desc );
2876                                                         if ( !tmp ) {
2877                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2878                                                                 new = new->a_next;
2879                                                                 continue;
2880                                                         }
2881                                                         /* Delete old attr */
2882                                                         mod = ch_malloc( sizeof( Modifications ) );
2883                                                         mod->sml_op = LDAP_MOD_DELETE;
2884                                                         mod->sml_flags = 0;
2885                                                         mod->sml_desc = old->a_desc;
2886                                                         mod->sml_type = mod->sml_desc->ad_cname;
2887                                                         mod->sml_values = NULL;
2888                                                         mod->sml_nvalues = NULL;
2889                                                         *modtail = mod;
2890                                                         modtail = &mod->sml_next;
2891                                                 }
2892                                                 old = old->a_next;
2893                                                 continue;
2894                                         }
2895                                         /* kludge - always update modifiersName so that it
2896                                          * stays co-located with the other mod opattrs. But only
2897                                          * if we know there are other valid mods.
2898                                          */
2899                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
2900                                                 dni->mods )
2901                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2902                                         else
2903                                                 attr_cmp( op, old, new, &modtail, &ml );
2904                                         new = new->a_next;
2905                                         old = old->a_next;
2906                                 }
2907                                 *modtail = *ml;
2908                                 *ml = NULL;
2909                         }
2910                 }
2911         } else if ( rs->sr_type == REP_RESULT ) {
2912                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
2913                         Debug( LDAP_DEBUG_ANY,
2914                                 "dn_callback : consistency error - "
2915                                 "entryUUID is not unique\n", 0, 0, 0 );
2916                 }
2917         }
2918
2919         return LDAP_SUCCESS;
2920 }
2921
2922 static int
2923 nonpresent_callback(
2924         Operation*      op,
2925         SlapReply*      rs )
2926 {
2927         syncinfo_t *si = op->o_callback->sc_private;
2928         Attribute *a;
2929         int count = 0;
2930         struct berval* present_uuid = NULL;
2931         struct nonpresent_entry *np_entry;
2932
2933         if ( rs->sr_type == REP_RESULT ) {
2934                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2935                 si->si_presentlist = NULL;
2936
2937         } else if ( rs->sr_type == REP_SEARCH ) {
2938                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
2939                         char buf[sizeof("rid=000 not")];
2940
2941                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2942
2943                         if ( a ) {
2944                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2945                                         syncuuid_cmp );
2946                         }
2947
2948                         if ( slap_debug & LDAP_DEBUG_SYNC ) {
2949                                 sprintf( buf, "%s %s", si->si_ridtxt,
2950                                         present_uuid ? "got" : "not" );
2951                         }
2952
2953                         Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
2954                                 buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
2955
2956                         if ( a == NULL ) return 0;
2957                 }
2958
2959                 if ( present_uuid == NULL ) {
2960                         np_entry = (struct nonpresent_entry *)
2961                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
2962                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
2963                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
2964                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
2965
2966                 } else {
2967                         avl_delete( &si->si_presentlist,
2968                                         &a->a_nvals[0], syncuuid_cmp );
2969                         ch_free( present_uuid->bv_val );
2970                         ch_free( present_uuid );
2971                 }
2972         }
2973         return LDAP_SUCCESS;
2974 }
2975
2976 static int
2977 null_callback(
2978         Operation*      op,
2979         SlapReply*      rs )
2980 {
2981         if ( rs->sr_err != LDAP_SUCCESS &&
2982                 rs->sr_err != LDAP_REFERRAL &&
2983                 rs->sr_err != LDAP_ALREADY_EXISTS &&
2984                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
2985                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
2986         {
2987                 Debug( LDAP_DEBUG_ANY,
2988                         "null_callback : error code 0x%x\n",
2989                         rs->sr_err, 0, 0 );
2990         }
2991         return LDAP_SUCCESS;
2992 }
2993
2994 static struct berval *
2995 slap_uuidstr_from_normalized(
2996         struct berval* uuidstr,
2997         struct berval* normalized,
2998         void *ctx )
2999 {
3000         struct berval *new;
3001         unsigned char nibble;
3002         int i, d = 0;
3003
3004         if ( normalized == NULL ) return NULL;
3005         if ( normalized->bv_len != 16 ) return NULL;
3006
3007         if ( uuidstr ) {
3008                 new = uuidstr;
3009         } else {
3010                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3011                 if ( new == NULL ) {
3012                         return NULL;
3013                 }
3014         }
3015
3016         new->bv_len = 36;
3017
3018         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3019                 if ( new != uuidstr ) {
3020                         slap_sl_free( new, ctx );
3021                 }
3022                 return NULL;
3023         }
3024
3025         for ( i = 0; i < 16; i++ ) {
3026                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3027                         new->bv_val[(i<<1)+d] = '-';
3028                         d += 1;
3029                 }
3030
3031                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3032                 if ( nibble < 10 ) {
3033                         new->bv_val[(i<<1)+d] = nibble + '0';
3034                 } else {
3035                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3036                 }
3037
3038                 nibble = (normalized->bv_val[i]) & 0xF;
3039                 if ( nibble < 10 ) {
3040                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3041                 } else {
3042                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3043                 }
3044         }
3045
3046         new->bv_val[new->bv_len] = '\0';
3047         return new;
3048 }
3049
3050 static int
3051 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3052 {
3053         const struct berval *uuid1 = v_uuid1;
3054         const struct berval *uuid2 = v_uuid2;
3055         int rc = uuid1->bv_len - uuid2->bv_len;
3056         if ( rc ) return rc;
3057         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3058 }
3059
3060 static void
3061 avl_ber_bvfree( void *v_bv )
3062 {
3063         struct berval   *bv = (struct berval *)v_bv;
3064
3065         if( v_bv == NULL ) return;
3066         if ( !BER_BVISNULL( bv ) ) {
3067                 ch_free( bv->bv_val );
3068         }
3069         ch_free( (char *) bv );
3070 }
3071
3072 void
3073 syncinfo_free( syncinfo_t *sie, int free_all )
3074 {
3075         syncinfo_t *si_next;
3076
3077         if ( free_all && sie->si_cookieState ) {
3078                 ch_free( sie->si_cookieState->cs_sids );
3079                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3080                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3081                 ch_free( sie->si_cookieState );
3082         }
3083         do {
3084                 si_next = sie->si_next;
3085
3086                 if ( sie->si_ld ) {
3087                         if ( sie->si_conn_setup ) {
3088                                 ber_socket_t s;
3089                                 ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
3090                                 connection_client_stop( s );
3091                                 sie->si_conn_setup = 0;
3092                         }
3093                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3094                 }
3095
3096                 /* re-fetch it, in case it was already removed */
3097                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3098                 if ( sie->si_re ) {
3099                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3100                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3101                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3102                 }
3103
3104                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3105
3106                 bindconf_free( &sie->si_bindconf );
3107
3108                 if ( sie->si_filterstr.bv_val ) {
3109                         ch_free( sie->si_filterstr.bv_val );
3110                 }
3111                 if ( sie->si_logfilterstr.bv_val ) {
3112                         ch_free( sie->si_logfilterstr.bv_val );
3113                 }
3114                 if ( sie->si_base.bv_val ) {
3115                         ch_free( sie->si_base.bv_val );
3116                 }
3117                 if ( sie->si_logbase.bv_val ) {
3118                         ch_free( sie->si_logbase.bv_val );
3119                 }
3120                 if ( sie->si_attrs ) {
3121                         int i = 0;
3122                         while ( sie->si_attrs[i] != NULL ) {
3123                                 ch_free( sie->si_attrs[i] );
3124                                 i++;
3125                         }
3126                         ch_free( sie->si_attrs );
3127                 }
3128                 if ( sie->si_exattrs ) {
3129                         int i = 0;
3130                         while ( sie->si_exattrs[i] != NULL ) {
3131                                 ch_free( sie->si_exattrs[i] );
3132                                 i++;
3133                         }
3134                         ch_free( sie->si_exattrs );
3135                 }
3136                 if ( sie->si_anlist ) {
3137                         int i = 0;
3138                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3139                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3140                                 i++;
3141                         }
3142                         ch_free( sie->si_anlist );
3143                 }
3144                 if ( sie->si_exanlist ) {
3145                         int i = 0;
3146                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3147                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3148                                 i++;
3149                         }
3150                         ch_free( sie->si_exanlist );
3151                 }
3152                 if ( sie->si_retryinterval ) {
3153                         ch_free( sie->si_retryinterval );
3154                 }
3155                 if ( sie->si_retrynum ) {
3156                         ch_free( sie->si_retrynum );
3157                 }
3158                 if ( sie->si_retrynum_init ) {
3159                         ch_free( sie->si_retrynum_init );
3160                 }
3161                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3162                 if ( sie->si_presentlist ) {
3163                     avl_free( sie->si_presentlist, avl_ber_bvfree );
3164                 }
3165                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3166                         struct nonpresent_entry* npe;
3167                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3168                         LDAP_LIST_REMOVE( npe, npe_link );
3169                         if ( npe->npe_name ) {
3170                                 if ( npe->npe_name->bv_val ) {
3171                                         ch_free( npe->npe_name->bv_val );
3172                                 }
3173                                 ch_free( npe->npe_name );
3174                         }
3175                         if ( npe->npe_nname ) {
3176                                 if ( npe->npe_nname->bv_val ) {
3177                                         ch_free( npe->npe_nname->bv_val );
3178                                 }
3179                                 ch_free( npe->npe_nname );
3180                         }
3181                         ch_free( npe );
3182                 }
3183                 ch_free( sie );
3184                 sie = si_next;
3185         } while ( free_all && si_next );
3186 }
3187
3188
3189
3190 /* NOTE: used & documented in slapd.conf(5) */
3191 #define IDSTR                   "rid"
3192 #define PROVIDERSTR             "provider"
3193 #define SCHEMASTR               "schemachecking"
3194 #define FILTERSTR               "filter"
3195 #define SEARCHBASESTR           "searchbase"
3196 #define SCOPESTR                "scope"
3197 #define ATTRSONLYSTR            "attrsonly"
3198 #define ATTRSSTR                "attrs"
3199 #define TYPESTR                 "type"
3200 #define INTERVALSTR             "interval"
3201 #define RETRYSTR                "retry"
3202 #define SLIMITSTR               "sizelimit"
3203 #define TLIMITSTR               "timelimit"
3204 #define SYNCDATASTR             "syncdata"
3205 #define LOGBASESTR              "logbase"
3206 #define LOGFILTERSTR    "logfilter"
3207
3208 /* FIXME: undocumented */
3209 #define EXATTRSSTR              "exattrs"
3210 #define MANAGEDSAITSTR          "manageDSAit"
3211
3212 /* mandatory */
3213 #define GOT_ID                  0x0001
3214 #define GOT_PROVIDER    0x0002
3215 #define GOT_BASE                0x0004
3216
3217 /* check */
3218 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3219
3220 static struct {
3221         struct berval key;
3222         int val;
3223 } scopes[] = {
3224         { BER_BVC("base"), LDAP_SCOPE_BASE },
3225         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3226         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3227         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3228         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3229         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3230         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3231         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3232         { BER_BVNULL, 0 }
3233 };
3234
3235 static slap_verbmasks datamodes[] = {
3236         { BER_BVC("default"), SYNCDATA_DEFAULT },
3237         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3238         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3239         { BER_BVNULL, 0 }
3240 };
3241
3242 static int
3243 parse_syncrepl_line(
3244         ConfigArgs      *c,
3245         syncinfo_t      *si )
3246 {
3247         int     gots = 0;
3248         int     i;
3249         char    *val;
3250
3251         for ( i = 1; i < c->argc; i++ ) {
3252                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3253                                         STRLENOF( IDSTR "=" ) ) )
3254                 {
3255                         int tmp;
3256                         /* '\0' string terminator accounts for '=' */
3257                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3258                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3259                                 snprintf( c->msg, sizeof( c->msg ),
3260                                         "Error: parse_syncrepl_line: "
3261                                         "unable to parse syncrepl id \"%s\"", val );
3262                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3263                                 return -1;
3264                         }
3265                         if ( tmp >= 1000 || tmp < 0 ) {
3266                                 snprintf( c->msg, sizeof( c->msg ),
3267                                         "Error: parse_syncrepl_line: "
3268                                         "syncrepl id %d is out of range [0..999]", tmp );
3269                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3270                                 return -1;
3271                         }
3272                         si->si_rid = tmp;
3273                         sprintf( si->si_ridtxt, IDSTR "=%03d", si->si_rid );
3274                         gots |= GOT_ID;
3275                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3276                                         STRLENOF( PROVIDERSTR "=" ) ) )
3277                 {
3278                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3279                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3280                         gots |= GOT_PROVIDER;
3281                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3282                                         STRLENOF( SCHEMASTR "=" ) ) )
3283                 {
3284                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3285                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3286                                 si->si_schemachecking = 1;
3287                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3288                                 si->si_schemachecking = 0;
3289                         } else {
3290                                 si->si_schemachecking = 1;
3291                         }
3292                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3293                                         STRLENOF( FILTERSTR "=" ) ) )
3294                 {
3295                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3296                         if ( si->si_filterstr.bv_val )
3297                                 ch_free( si->si_filterstr.bv_val );
3298                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3299                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3300                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3301                 {
3302                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3303                         if ( si->si_logfilterstr.bv_val )
3304                                 ch_free( si->si_logfilterstr.bv_val );
3305                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3306                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3307                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3308                 {
3309                         struct berval   bv;
3310                         int             rc;
3311
3312                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3313                         if ( si->si_base.bv_val ) {
3314                                 ch_free( si->si_base.bv_val );
3315                         }
3316                         ber_str2bv( val, 0, 0, &bv );
3317                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3318                         if ( rc != LDAP_SUCCESS ) {
3319                                 snprintf( c->msg, sizeof( c->msg ),
3320                                         "Invalid base DN \"%s\": %d (%s)",
3321                                         val, rc, ldap_err2string( rc ) );
3322                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3323                                 return -1;
3324                         }
3325                         gots |= GOT_BASE;
3326                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3327                                         STRLENOF( LOGBASESTR "=" ) ) )
3328                 {
3329                         struct berval   bv;
3330                         int             rc;
3331
3332                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3333                         if ( si->si_logbase.bv_val ) {
3334                                 ch_free( si->si_logbase.bv_val );
3335                         }
3336                         ber_str2bv( val, 0, 0, &bv );
3337                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3338                         if ( rc != LDAP_SUCCESS ) {
3339                                 snprintf( c->msg, sizeof( c->msg ),
3340                                         "Invalid logbase DN \"%s\": %d (%s)",
3341                                         val, rc, ldap_err2string( rc ) );
3342                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3343                                 return -1;
3344                         }
3345                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3346                                         STRLENOF( SCOPESTR "=" ) ) )
3347                 {
3348                         int j;
3349                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3350                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3351                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3352                                         si->si_scope = scopes[j].val;
3353                                         break;
3354                                 }
3355                         }
3356                         if ( BER_BVISNULL(&scopes[j].key) ) {
3357                                 snprintf( c->msg, sizeof( c->msg ),
3358                                         "Error: parse_syncrepl_line: "
3359                                         "unknown scope \"%s\"", val);
3360                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3361                                 return -1;
3362                         }
3363                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3364                                         STRLENOF( ATTRSONLYSTR ) ) )
3365                 {
3366                         si->si_attrsonly = 1;
3367                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3368                                         STRLENOF( ATTRSSTR "=" ) ) )
3369                 {
3370                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3371                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3372                                 char *attr_fname;
3373                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3374                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3375                                 if ( si->si_anlist == NULL ) {
3376                                         ch_free( attr_fname );
3377                                         return -1;
3378                                 }
3379                                 si->si_anfile = attr_fname;
3380                         } else {
3381                                 char *str, *s, *next;
3382                                 char delimstr[] = " ,\t";
3383                                 str = ch_strdup( val );
3384                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3385                                                 s != NULL;
3386                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3387                                 {
3388                                         if ( strlen(s) == 1 && *s == '*' ) {
3389                                                 si->si_allattrs = 1;
3390                                                 val[ s - str ] = delimstr[0];
3391                                         }
3392                                         if ( strlen(s) == 1 && *s == '+' ) {
3393                                                 si->si_allopattrs = 1;
3394                                                 val [ s - str ] = delimstr[0];
3395                                         }
3396                                 }
3397                                 ch_free( str );
3398                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3399                                 if ( si->si_anlist == NULL ) {
3400                                         return -1;
3401                                 }
3402                         }
3403                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3404                                         STRLENOF( EXATTRSSTR "=" ) ) )
3405                 {
3406                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3407                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3408                                 char *attr_fname;
3409                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3410                                 si->si_exanlist = file2anlist(
3411                                         si->si_exanlist, attr_fname, " ,\t" );
3412                                 if ( si->si_exanlist == NULL ) {
3413                                         ch_free( attr_fname );
3414                                         return -1;
3415                                 }
3416                                 ch_free( attr_fname );
3417                         } else {
3418                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3419                                 if ( si->si_exanlist == NULL ) {
3420                                         return -1;
3421                                 }
3422                         }
3423                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3424                                         STRLENOF( TYPESTR "=" ) ) )
3425                 {
3426                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3427                         if ( !strncasecmp( val, "refreshOnly",
3428                                                 STRLENOF("refreshOnly") ) )
3429                         {
3430                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3431                         } else if ( !strncasecmp( val, "refreshAndPersist",
3432                                                 STRLENOF("refreshAndPersist") ) )
3433                         {
3434                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3435                                 si->si_interval = 60;
3436                         } else {
3437                                 snprintf( c->msg, sizeof( c->msg ),
3438                                         "Error: parse_syncrepl_line: "
3439                                         "unknown sync type \"%s\"", val);
3440                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3441                                 return -1;
3442                         }
3443                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3444                                         STRLENOF( INTERVALSTR "=" ) ) )
3445                 {
3446                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3447                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3448                                 si->si_interval = 0;
3449                         } else if ( strchr( val, ':' ) != NULL ) {
3450                                 char *next, *ptr = val;
3451                                 unsigned dd, hh, mm, ss;
3452
3453                                 /* NOTE: the test for ptr[ 0 ] == '-'
3454                                  * should go before the call to strtoul() */
3455                                 dd = strtoul( ptr, &next, 10 );
3456                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' ) {
3457                                         snprintf( c->msg, sizeof( c->msg ),
3458                                                 "Error: parse_syncrepl_line: "
3459                                                 "invalid interval \"%s\", unable to parse days", val );
3460                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3461                                         return -1;
3462                                 }
3463                                 ptr = next + 1;
3464                                 hh = strtoul( ptr, &next, 10 );
3465                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || hh > 24 ) {
3466                                         snprintf( c->msg, sizeof( c->msg ),
3467                                                 "Error: parse_syncrepl_line: "
3468                                                 "invalid interval \"%s\", unable to parse hours", val );
3469                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3470                                         return -1;
3471                                 }
3472                                 ptr = next + 1;
3473                                 mm = strtoul( ptr, &next, 10 );
3474                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || mm > 60 ) {
3475                                         snprintf( c->msg, sizeof( c->msg ),
3476                                                 "Error: parse_syncrepl_line: "
3477                                                 "invalid interval \"%s\", unable to parse minutes", val );
3478                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3479                                         return -1;
3480                                 }
3481                                 ptr = next + 1;
3482                                 ss = strtoul( ptr, &next, 10 );
3483                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != '\0' || ss > 60 ) {
3484                                         snprintf( c->msg, sizeof( c->msg ),
3485                                                 "Error: parse_syncrepl_line: "
3486                                                 "invalid interval \"%s\", unable to parse seconds", val );
3487                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3488                                         return -1;
3489                                 }
3490                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3491                         } else {
3492                                 unsigned long   t;
3493
3494                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3495                                         snprintf( c->msg, sizeof( c->msg ),
3496                                                 "Error: parse_syncrepl_line: "
3497                                                 "invalid interval \"%s\"", val );
3498                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3499                                         return -1;
3500                                 }
3501                                 si->si_interval = (time_t)t;
3502                         }
3503                         if ( si->si_interval < 0 ) {
3504                                 snprintf( c->msg, sizeof( c->msg ),
3505                                         "Error: parse_syncrepl_line: "
3506                                         "invalid interval \"%ld\"",
3507                                         (long) si->si_interval);
3508                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3509                                 return -1;
3510                         }
3511                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3512                                         STRLENOF( RETRYSTR "=" ) ) )
3513                 {
3514                         char **retry_list;
3515                         int j, k, n;
3516
3517                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3518                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3519                         retry_list[0] = NULL;
3520
3521                         slap_str2clist( &retry_list, val, " ,\t" );
3522
3523                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3524                         n = k / 2;
3525                         if ( k % 2 ) {
3526                                 snprintf( c->msg, sizeof( c->msg ),
3527                                         "Error: incomplete syncrepl retry list" );
3528                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3529                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3530                                         ch_free( retry_list[k] );
3531                                 }
3532                                 ch_free( retry_list );
3533                                 return 1;
3534                         }
3535                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3536                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3537                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3538                         for ( j = 0; j < n; j++ ) {
3539                                 unsigned long   t;
3540                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3541                                         snprintf( c->msg, sizeof( c->msg ),
3542                                                 "Error: invalid retry interval \"%s\" (#%d)",
3543                                                 retry_list[j*2], j );
3544                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3545                                         /* do some cleanup */
3546                                         return 1;
3547                                 }
3548                                 si->si_retryinterval[j] = (time_t)t;
3549                                 if ( *retry_list[j*2+1] == '+' ) {
3550                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3551                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3552                                         j++;
3553                                         break;
3554                                 } else {
3555                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3556                                                         || si->si_retrynum_init[j] <= 0 )
3557                                         {
3558                                                 snprintf( c->msg, sizeof( c->msg ),
3559                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3560                                                         retry_list[j*2+1], j );
3561                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3562                                                 /* do some cleanup */
3563                                                 return 1;
3564                                         }
3565                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3566                                                         || si->si_retrynum[j] <= 0 )
3567                                         {
3568                                                 snprintf( c->msg, sizeof( c->msg ),
3569                                                         "Error: invalid retry number \"%s\" (#%d)",
3570                                                         retry_list[j*2+1], j );
3571                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3572                                                 /* do some cleanup */
3573                                                 return 1;
3574                                         }
3575                                 }
3576                         }
3577                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3578                         si->si_retrynum[j] = RETRYNUM_TAIL;
3579                         si->si_retryinterval[j] = 0;
3580
3581                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3582                                 ch_free( retry_list[k] );
3583                         }
3584                         ch_free( retry_list );
3585                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3586                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3587                 {
3588                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3589                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3590                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3591                         {
3592                                 snprintf( c->msg, sizeof( c->msg ),
3593                                         "invalid manageDSAit value \"%s\".\n",
3594                                         val );
3595                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3596                                 return 1;
3597                         }
3598                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3599                                         STRLENOF( SLIMITSTR "=") ) )
3600                 {
3601                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3602                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3603                                 si->si_slimit = 0;
3604
3605                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3606                                 snprintf( c->msg, sizeof( c->msg ),
3607                                         "invalid size limit value \"%s\".\n",
3608                                         val );
3609                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3610                                 return 1;
3611                         }
3612                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3613                                         STRLENOF( TLIMITSTR "=" ) ) )
3614                 {
3615                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3616                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3617                                 si->si_tlimit = 0;
3618
3619                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3620                                 snprintf( c->msg, sizeof( c->msg ),
3621                                         "invalid time limit value \"%s\".\n",
3622                                         val );
3623                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3624                                 return 1;
3625                         }
3626                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3627                                         STRLENOF( SYNCDATASTR "=" ) ) )
3628                 {
3629                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3630                         si->si_syncdata = verb_to_mask( val, datamodes );
3631                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3632                         snprintf( c->msg, sizeof( c->msg ),
3633                                 "Error: parse_syncrepl_line: "
3634                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3635                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3636                         return -1;
3637                 }
3638         }
3639
3640         if ( gots != GOT_ALL ) {
3641                 snprintf( c->msg, sizeof( c->msg ),
3642                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3643                         gots & GOT_ID ? "" : " "IDSTR,
3644                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3645                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3646                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
3647                 return -1;
3648         }
3649
3650         return 0;
3651 }
3652
3653 static int
3654 add_syncrepl(
3655         ConfigArgs *c )
3656 {
3657         syncinfo_t *si;
3658         int     rc = 0;
3659
3660         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3661                 snprintf( c->msg, sizeof(c->msg), "database %s does not support "
3662                         "operations required for syncrepl", c->be->be_type );
3663                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
3664                 return 1;
3665         }
3666         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3667                 strcpy( c->msg, "rootDN must be defined before syncrepl may be used" );
3668                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
3669                 return 1;
3670         }
3671         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3672
3673         if ( si == NULL ) {
3674                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3675                 return 1;
3676         }
3677
3678         si->si_bindconf.sb_tls = SB_TLS_OFF;
3679         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3680         si->si_schemachecking = 0;
3681         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3682                 &si->si_filterstr );
3683         si->si_base.bv_val = NULL;
3684         si->si_scope = LDAP_SCOPE_SUBTREE;
3685         si->si_attrsonly = 0;
3686         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3687         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3688         si->si_attrs = NULL;
3689         si->si_allattrs = 0;
3690         si->si_allopattrs = 0;
3691         si->si_exattrs = NULL;
3692         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3693         si->si_interval = 86400;
3694         si->si_retryinterval = NULL;
3695         si->si_retrynum_init = NULL;
3696         si->si_retrynum = NULL;
3697         si->si_manageDSAit = 0;
3698         si->si_tlimit = 0;
3699         si->si_slimit = 0;
3700         si->si_conn_setup = 0;
3701
3702         si->si_presentlist = NULL;
3703         LDAP_LIST_INIT( &si->si_nonpresentlist );
3704         ldap_pvt_thread_mutex_init( &si->si_mutex );
3705
3706         rc = parse_syncrepl_line( c, si );
3707
3708         if ( rc == 0 ) {
3709                 /* Must be LDAPv3 because we need controls */
3710                 switch ( si->si_bindconf.sb_version ) {
3711                 case 0:
3712                         /* not explicitly set */
3713                         si->si_bindconf.sb_version = LDAP_VERSION3;
3714                         break;
3715                 case 3:
3716                         /* explicitly set */
3717                         break;
3718                 default:
3719                         Debug( LDAP_DEBUG_ANY,
3720                                 "version %d incompatible with syncrepl\n",
3721                                 si->si_bindconf.sb_version, 0, 0 );
3722                         syncinfo_free( si, 0 );
3723                         return 1;
3724                 }
3725
3726                 si->si_be = c->be;
3727                 if ( slapMode & SLAP_SERVER_MODE ) {
3728                         Listener **l = slapd_get_listeners();
3729                         int isMe = 0;
3730
3731                         /* check if URL points to current server. If so, ignore
3732                          * this configuration. We require an exact match. Just
3733                          * in case they really want to do this, they can vary
3734                          * the case of the URL to allow it.
3735                          */
3736                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3737                                 int i;
3738                                 for ( i=0; l[i]; i++ ) {
3739                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3740                                                 isMe = 1;
3741                                                 break;
3742                                         }
3743                                 }
3744                         }
3745
3746                         if ( !isMe ) {
3747                                 init_syncrepl( si );
3748                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3749                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3750                                         si->si_ridtxt );
3751                                 if ( si->si_re )
3752                                         rc = config_sync_shadow( c ) ? -1 : 0;
3753                                 else
3754                                         rc = -1;
3755                         }
3756                 }
3757         }
3758
3759 #ifdef HAVE_TLS
3760         /* Use main slapd defaults */
3761         bindconf_tls_defaults( &si->si_bindconf );
3762 #endif
3763         if ( rc < 0 ) {
3764                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3765                 syncinfo_free( si, 0 );
3766                 return 1;
3767         } else {
3768                 Debug( LDAP_DEBUG_CONFIG,
3769                         "Config: ** successfully added syncrepl \"%s\"\n",
3770                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3771                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3772                 if ( !si->si_schemachecking ) {
3773                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3774                 }
3775                 if ( c->be->be_syncinfo ) {
3776                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3777                 } else {
3778                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3779                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3780                 }
3781                 si->si_next = c->be->be_syncinfo;
3782                 c->be->be_syncinfo = si;
3783                 return 0;
3784         }
3785 }
3786
3787 static void
3788 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3789 {
3790         struct berval bc, uri;
3791         char buf[BUFSIZ*2], *ptr;
3792         int i;
3793
3794 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3795
3796         BER_BVZERO( bv );
3797
3798         /* temporarily inhibit bindconf from printing URI */
3799         uri = si->si_bindconf.sb_uri;
3800         BER_BVZERO( &si->si_bindconf.sb_uri );
3801         si->si_bindconf.sb_version = 0;
3802         bindconf_unparse( &si->si_bindconf, &bc );
3803         si->si_bindconf.sb_uri = uri;
3804         si->si_bindconf.sb_version = LDAP_VERSION3;
3805
3806         ptr = buf;
3807         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%03ld " PROVIDERSTR "=%s",
3808                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3809         if ( ptr - buf >= sizeof( buf ) ) return;
3810         if ( !BER_BVISNULL( &bc ) ) {
3811                 if ( WHATSLEFT <= bc.bv_len ) {
3812                         free( bc.bv_val );
3813                         return;
3814                 }
3815                 ptr = lutil_strcopy( ptr, bc.bv_val );
3816                 free( bc.bv_val );
3817         }
3818         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3819                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3820                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3821                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3822                 *ptr++ = '"';
3823         }
3824         if ( !BER_BVISNULL( &si->si_base ) ) {
3825                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3826                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3827                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3828                 *ptr++ = '"';
3829         }
3830         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3831                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3832                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3833                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3834                 *ptr++ = '"';
3835         }
3836         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3837                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3838                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3839                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3840                 *ptr++ = '"';
3841         }
3842         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
3843                 if ( si->si_scope == scopes[i].val ) {
3844                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
3845                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
3846                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
3847                         break;
3848                 }
3849         }
3850         if ( si->si_attrsonly ) {
3851                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3852                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
3853         }
3854         if ( si->si_anfile ) {
3855                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
3856                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
3857                 ptr = lutil_strcopy( ptr, si->si_anfile );
3858                 *ptr++ = '"';
3859         } else if ( si->si_allattrs || si->si_allopattrs ||
3860                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
3861         {
3862                 char *old;
3863
3864                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3865                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
3866                 old = ptr;
3867                 /* FIXME: add check for overflow */
3868                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
3869                 if ( si->si_allattrs ) {
3870                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
3871                         if ( old != ptr ) *ptr++ = ',';
3872                         *ptr++ = '*';
3873                 }
3874                 if ( si->si_allopattrs ) {
3875                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
3876                         if ( old != ptr ) *ptr++ = ',';
3877                         *ptr++ = '+';
3878                 }
3879                 *ptr++ = '"';
3880         }
3881         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
3882                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
3883                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
3884                 /* FIXME: add check for overflow */
3885                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
3886         }
3887         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
3888         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
3889         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
3890
3891         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
3892         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
3893         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
3894                 "refreshAndPersist" : "refreshOnly" );
3895
3896         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
3897                 int dd, hh, mm, ss;
3898
3899                 dd = si->si_interval;
3900                 ss = dd % 60;
3901                 dd /= 60;
3902                 mm = dd % 60;
3903                 dd /= 60;
3904                 hh = dd % 24;
3905                 dd /= 24;
3906                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
3907                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
3908                 if ( ptr - buf >= sizeof( buf ) ) return;
3909         } else if ( si->si_retryinterval ) {
3910                 int space=0;
3911                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
3912                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
3913                 for (i=0; si->si_retryinterval[i]; i++) {
3914                         if ( space ) *ptr++ = ' ';
3915                         space = 1;
3916                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
3917                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
3918                                 *ptr++ = '+';
3919                         else
3920                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
3921                 }
3922                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
3923                 *ptr++ = '"';
3924         }
3925
3926         if ( si->si_slimit ) {
3927                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
3928                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
3929                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
3930         }
3931
3932         if ( si->si_tlimit ) {
3933                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
3934                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
3935                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
3936         }
3937
3938         if ( si->si_syncdata ) {
3939                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
3940                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
3941                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
3942                         ptr = lutil_strcopy( ptr, bc.bv_val );
3943                 }
3944         }
3945         bc.bv_len = ptr - buf;
3946         bc.bv_val = buf;
3947         ber_dupbv( bv, &bc );
3948 }
3949
3950 int
3951 syncrepl_config( ConfigArgs *c )
3952 {
3953         if (c->op == SLAP_CONFIG_EMIT) {
3954                 if ( c->be->be_syncinfo ) {
3955                         struct berval bv;
3956                         syncinfo_t *si;
3957
3958                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
3959                                 syncrepl_unparse( si, &bv );
3960                                 ber_bvarray_add( &c->rvalue_vals, &bv );
3961                         }
3962                         return 0;
3963                 }
3964                 return 1;
3965         } else if ( c->op == LDAP_MOD_DELETE ) {
3966                 cookie_state *cs = NULL;
3967                 if ( c->be->be_syncinfo ) {
3968                         syncinfo_t *si, **sip;
3969                         int i;
3970
3971                         cs = c->be->be_syncinfo->si_cookieState;
3972                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
3973                                 si = *sip;
3974                                 if ( c->valx == -1 || i == c->valx ) {
3975                                         *sip = si->si_next;
3976                                         /* If the task is currently active, we have to leave
3977                                          * it running. It will exit on its own. This will only
3978                                          * happen when running on the cn=config DB.
3979                                          */
3980                                         if ( si->si_re &&
3981                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
3982                                                 si->si_ctype = 0;
3983                                         } else {
3984                                                 syncinfo_free( si, 0 );
3985                                         }
3986                                         if ( i == c->valx )
3987                                                 break;
3988                                 } else {
3989                                         sip = &si->si_next;
3990                                 }
3991                         }
3992                 }
3993                 if ( !c->be->be_syncinfo ) {
3994                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
3995                         if ( cs ) {
3996                                 ber_bvarray_free( cs->cs_vals );
3997                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
3998                                 ch_free( cs );
3999                         }
4000                 }
4001                 return 0;
4002         }
4003         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4004                 Debug(LDAP_DEBUG_ANY, "%s: "
4005                         "syncrepl: database already shadowed.\n",
4006                         c->log, 0, 0);
4007                 return(1);
4008         } else {
4009                 return add_syncrepl( c );
4010         }
4011 }