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