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 2003-2005 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 /* FIXME: for ldap_ld_free() */
  35 #undef ldap_debug
  36 #include "../../libraries/libldap/ldap-int.h"
  37
  38 struct nonpresent_entry {
  39         struct berval *npe_name;
  40         struct berval *npe_nname;
  41         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  42 };
  43
  44 typedef struct syncinfo_s {
  45         struct slap_backend_db *si_be;
  46         struct re_s                     *si_re;
  47         long                            si_rid;
  48         struct berval           si_provideruri;
  49         slap_bindconf           si_bindconf;
  50         struct berval           si_filterstr;
  51         struct berval           si_base;
  52         int                                     si_scope;
  53         int                                     si_attrsonly;
  54         char                            *si_anfile;
  55         AttributeName           *si_anlist;
  56         AttributeName           *si_exanlist;
  57         char                            **si_attrs;
  58         char                            **si_exattrs;
  59         int                                     si_allattrs;
  60         int                                     si_allopattrs;
  61         int                                     si_schemachecking;
  62         int                                     si_type;
  63         time_t                          si_interval;
  64         time_t                          *si_retryinterval;
  65         int                                     *si_retrynum_init;
  66         int                                     *si_retrynum;
  67         struct sync_cookie      si_syncCookie;
  68         int                                     si_manageDSAit;
  69         int                                     si_slimit;
  70         int                                     si_tlimit;
  71         int                                     si_refreshDelete;
  72         int                                     si_refreshPresent;
  73         Avlnode                         *si_presentlist;
  74         LDAP                            *si_ld;
  75         LDAP_LIST_HEAD(np, nonpresent_entry) si_nonpresentlist;
  76         ldap_pvt_thread_mutex_t si_mutex;
  77 } syncinfo_t;
  78
  79 static int syncuuid_cmp( const void *, const void * );
  80 static void avl_ber_bvfree( void * );
  81 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray );
  82 static int syncrepl_message_to_entry(
  83                                         syncinfo_t *, Operation *, LDAPMessage *,
  84                                         Modifications **, Entry **, int );
  85 static int syncrepl_entry(
  86                                         syncinfo_t *, Operation*, Entry*,
  87                                         Modifications**,int, struct berval*,
  88                                         struct sync_cookie *,
  89                                         struct berval * );
  90 static void syncrepl_updateCookie(
  91                                         syncinfo_t *, Operation *, struct berval *,
  92                                         struct sync_cookie * );
  93 static struct berval * slap_uuidstr_from_normalized(
  94                                         struct berval *, struct berval *, void * );
  95
  96 /* callback functions */
  97 static int dn_callback( struct slap_op *, struct slap_rep * );
  98 static int nonpresent_callback( struct slap_op *, struct slap_rep * );
  99 static int null_callback( struct slap_op *, struct slap_rep * );
 100
 101 static AttributeDescription *sync_descs[4];
 102
 103 static void
 104 init_syncrepl(syncinfo_t *si)
 105 {
 106         int i, j, k, l, n;
 107         char **attrs, **exattrs;
 108
 109         if ( !sync_descs[0] ) {
 110                 sync_descs[0] = slap_schema.si_ad_objectClass;
 111                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 112                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 113                 sync_descs[3] = NULL;
 114         }
 115
 116         if ( si->si_allattrs && si->si_allopattrs )
 117                 attrs = NULL;
 118         else
 119                 attrs = anlist2attrs( si->si_anlist );
 120
 121         if ( attrs ) {
 122                 if ( si->si_allattrs ) {
 123                         i = 0;
 124                         while ( attrs[i] ) {
 125                                 if ( !is_at_operational( at_find( attrs[i] ))) {
 126                                         for ( j = i; attrs[j] != NULL; j++ ) {
 127                                                 if ( j == i )
 128                                                         ch_free( attrs[i] );
 129                                                 attrs[j] = attrs[j+1];
 130                                         }
 131                                 } else {
 132                                         i++;
 133                                 }
 134                         }
 135                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 136                         attrs[i] = ch_strdup("*");
 137                         attrs[i + 1] = NULL;
 138
 139                 } else if ( si->si_allopattrs ) {
 140                         i = 0;
 141                         while ( attrs[i] ) {
 142                                 if ( is_at_operational( at_find( attrs[i] ))) {
 143                                         for ( j = i; attrs[j] != NULL; j++ ) {
 144                                                 if ( j == i )
 145                                                         ch_free( attrs[i] );
 146                                                 attrs[j] = attrs[j+1];
 147                                         }
 148                                 } else {
 149                                         i++;
 150                                 }
 151                         }
 152                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 153                         attrs[i] = ch_strdup("+");
 154                         attrs[i + 1] = NULL;
 155                 }
 156
 157                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 158                         j = 0;
 159                         while ( attrs[j] ) {
 160                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val )) {
 161                                         for ( k = j; attrs[k] != NULL; k++ ) {
 162                                                 if ( k == j )
 163                                                         ch_free( attrs[k] );
 164                                                 attrs[k] = attrs[k+1];
 165                                         }
 166                                 } else {
 167                                         j++;
 168                                 }
 169                         }
 170                 }
 171
 172                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 173
 174                 if ( si->si_allopattrs ) {
 175                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ));
 176                 } else {
 177                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ));
 178                 }
 179
 180                 if ( attrs == NULL ) {
 181                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
 182                 }
 183
 184                 /* Add Attributes */
 185                 if ( si->si_allopattrs ) {
 186                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 187                 } else {
 188                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 189                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 190                         }
 191                 }
 192                 attrs[ n ] = NULL;
 193
 194         } else {
 195
 196                 i = 0;
 197                 if ( si->si_allattrs == si->si_allopattrs ) {
 198                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 199                         attrs[i++] = ch_strdup( "*" );
 200                         attrs[i++] = ch_strdup( "+" );
 201                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 202                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 203                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 204                         attrs[i++] = ch_strdup( "*" );
 205                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 206                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 207                         }
 208                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 209                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 210                         attrs[i++] = ch_strdup( "+" );
 211                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 212                 }
 213                 attrs[i] = NULL;
 214         }
 215
 216         si->si_attrs = attrs;
 217
 218         exattrs = anlist2attrs( si->si_exanlist );
 219
 220         if ( exattrs ) {
 221                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 222
 223                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 224                         j = 0;
 225                         while ( exattrs[j] != NULL ) {
 226                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val )) {
 227                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 228                                                 if ( k == j )
 229                                                         ch_free( exattrs[k] );
 230                                                 exattrs[k] = exattrs[k+1];
 231                                         }
 232                                 } else {
 233                                         j++;
 234                                 }
 235                         }
 236                 }
 237
 238                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 239                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 240                                 ObjectClass     *oc;
 241                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 242                                         k = 0;
 243                                         while ( oc->soc_required[k] ) {
 244                                                 if ( !strcmp( exattrs[i],
 245                                                          oc->soc_required[k]->sat_cname.bv_val )) {
 246                                                         for ( l = i; exattrs[l]; l++ ) {
 247                                                                 if ( l == i )
 248                                                                         ch_free( exattrs[i] );
 249                                                                 exattrs[l] = exattrs[l+1];
 250                                                         }
 251                                                 } else {
 252                                                         k++;
 253                                                 }
 254                                         }
 255                                 }
 256                         }
 257                 }
 258
 259                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 260
 261                 if ( i != n )
 262                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *));
 263         }
 264
 265         si->si_exattrs = exattrs;
 266 }
 267
 268 static int
 269 ldap_sync_search(
 270         syncinfo_t *si,
 271         void *ctx )
 272 {
 273         BerElementBuffer berbuf;
 274         BerElement *ber = (BerElement *)&berbuf;
 275         LDAPControl c[2], *ctrls[3];
 276         struct timeval timeout;
 277         ber_int_t       msgid;
 278         int rc;
 279
 280         /* setup LDAP SYNC control */
 281         ber_init2( ber, NULL, LBER_USE_DER );
 282         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 283
 284         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 285         {
 286                 ber_printf( ber, "{eO}",
 287                         abs(si->si_type),
 288                         &si->si_syncCookie.octet_str );
 289         } else {
 290                 ber_printf( ber, "{e}",
 291                         abs(si->si_type) );
 292         }
 293
 294         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 )) == LBER_ERROR ) {
 295                 ber_free_buf( ber );
 296                 return rc;
 297         }
 298
 299         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 300         c[0].ldctl_iscritical = si->si_type < 0;
 301         ctrls[0] = &c[0];
 302
 303         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 304                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 305                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 306                 c[1].ldctl_iscritical = 1;
 307                 ctrls[1] = &c[1];
 308                 ctrls[2] = NULL;
 309         } else {
 310                 ctrls[1] = NULL;
 311         }
 312
 313         timeout.tv_sec = si->si_tlimit;
 314         timeout.tv_usec = 0;
 315
 316         rc = ldap_search_ext( si->si_ld, si->si_base.bv_val, si->si_scope,
 317                 si->si_filterstr.bv_val, si->si_attrs, si->si_attrsonly,
 318                 ctrls, NULL, si->si_tlimit > 0 ? &timeout : NULL,
 319                 si->si_slimit, &msgid );
 320         ber_free_buf( ber );
 321         return rc;
 322 }
 323
 324 static int
 325 do_syncrep1(
 326         Operation *op,
 327         syncinfo_t *si )
 328 {
 329         int     rc;
 330         int cmdline_cookie_found = 0;
 331
 332         struct sync_cookie      *sc = NULL;
 333         struct berval   *psub;
 334 #ifdef HAVE_TLS
 335         void    *ssl;
 336 #endif
 337
 338         psub = &si->si_be->be_nsuffix[0];
 339
 340         /* Init connection to master */
 341         rc = ldap_initialize( &si->si_ld, si->si_provideruri.bv_val );
 342         if ( rc != LDAP_SUCCESS ) {
 343                 Debug( LDAP_DEBUG_ANY,
 344                         "do_syncrep1: ldap_initialize failed (%s)\n",
 345                         si->si_provideruri.bv_val, 0, 0 );
 346                 return rc;
 347         }
 348
 349         op->o_protocol = LDAP_VERSION3;
 350         ldap_set_option( si->si_ld, LDAP_OPT_PROTOCOL_VERSION, &op->o_protocol );
 351
 352         /* Bind to master */
 353
 354         if ( si->si_bindconf.sb_tls ) {
 355                 rc = ldap_start_tls_s( si->si_ld, NULL, NULL );
 356                 if( rc != LDAP_SUCCESS ) {
 357                         Debug( LDAP_DEBUG_ANY,
 358                                 "%s: ldap_start_tls failed (%d)\n",
 359                                 si->si_bindconf.sb_tls == SB_TLS_CRITICAL ? "Error" : "Warning",
 360                                 rc, 0 );
 361                         if( si->si_bindconf.sb_tls == SB_TLS_CRITICAL ) goto done;
 362                 }
 363         }
 364
 365         if ( si->si_bindconf.sb_method == LDAP_AUTH_SASL ) {
 366 #ifdef HAVE_CYRUS_SASL
 367                 void *defaults;
 368
 369                 if ( si->si_bindconf.sb_secprops != NULL ) {
 370                         rc = ldap_set_option( si->si_ld,
 371                                 LDAP_OPT_X_SASL_SECPROPS, si->si_bindconf.sb_secprops);
 372
 373                         if( rc != LDAP_OPT_SUCCESS ) {
 374                                 Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
 375                                         "(%s,SECPROPS,\"%s\") failed!\n",
 376                                         si->si_provideruri.bv_val, si->si_bindconf.sb_secprops, 0 );
 377                                 goto done;
 378                         }
 379                 }
 380
 381                 defaults = lutil_sasl_defaults( si->si_ld,
 382                         si->si_bindconf.sb_saslmech.bv_val,
 383                         si->si_bindconf.sb_realm.bv_val,
 384                         si->si_bindconf.sb_authcId.bv_val,
 385                         si->si_bindconf.sb_cred.bv_val,
 386                         si->si_bindconf.sb_authzId.bv_val );
 387
 388                 rc = ldap_sasl_interactive_bind_s( si->si_ld,
 389                                 si->si_bindconf.sb_binddn.bv_val,
 390                                 si->si_bindconf.sb_saslmech.bv_val,
 391                                 NULL, NULL,
 392                                 LDAP_SASL_QUIET,
 393                                 lutil_sasl_interact,
 394                                 defaults );
 395
 396                 lutil_sasl_freedefs( defaults );
 397
 398                 /* FIXME: different error behaviors according to
 399                  *      1) return code
 400                  *      2) on err policy : exit, retry, backoff ...
 401                  */
 402                 if ( rc != LDAP_SUCCESS ) {
 403                         static struct berval bv_GSSAPI = BER_BVC( "GSSAPI" );
 404
 405                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 406                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 407                                 rc, 0, 0 );
 408
 409                         /* FIXME (see above comment) */
 410                         /* if Kerberos credentials cache is not active, retry */
 411                         if ( ber_bvcmp( &si->si_bindconf.sb_saslmech, &bv_GSSAPI ) == 0 &&
 412                                 rc == LDAP_LOCAL_ERROR )
 413                         {
 414                                 rc = LDAP_SERVER_DOWN;
 415                         }
 416
 417                         goto done;
 418                 }
 419 #else /* HAVE_CYRUS_SASL */
 420                 /* Should never get here, we trapped this at config time */
 421                 assert(0);
 422                 fprintf( stderr, "not compiled with SASL support\n" );
 423                 rc = LDAP_OTHER;
 424                 goto done;
 425 #endif
 426
 427         } else if ( si->si_bindconf.sb_method == LDAP_AUTH_SIMPLE ) {
 428                 rc = ldap_sasl_bind_s( si->si_ld,
 429                         si->si_bindconf.sb_binddn.bv_val, LDAP_SASL_SIMPLE,
 430                         &si->si_bindconf.sb_cred, NULL, NULL, NULL );
 431                 if ( rc != LDAP_SUCCESS ) {
 432                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 433                                 "ldap_sasl_bind_s failed (%d)\n", rc, 0, 0 );
 434                         goto done;
 435                 }
 436         }
 437
 438         /* Set SSF to strongest of TLS, SASL SSFs */
 439         op->o_sasl_ssf = 0;
 440         op->o_tls_ssf = 0;
 441         op->o_transport_ssf = 0;
 442 #ifdef HAVE_TLS
 443         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 444                 == LDAP_SUCCESS && ssl != NULL )
 445         {
 446                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 447         }
 448 #endif /* HAVE_TLS */
 449         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 450         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 451                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 452
 453
 454         if ( BER_BVISNULL( &si->si_syncCookie.octet_str )) {
 455                 /* get contextCSN shadow replica from database */
 456                 BerVarray csn = NULL;
 457
 458                 assert( si->si_rid < 1000 );
 459                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 460                 op->o_req_dn = op->o_req_ndn;
 461
 462                 /* try to read stored contextCSN */
 463                 backend_attribute( op, NULL, &op->o_req_ndn,
 464                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 465                 if ( csn ) {
 466                         ch_free( si->si_syncCookie.ctxcsn.bv_val );
 467                         ber_dupbv( &si->si_syncCookie.ctxcsn, csn );
 468                         ber_bvarray_free_x( csn, op->o_tmpmemctx );
 469                 }
 470
 471                 si->si_syncCookie.rid = si->si_rid;
 472
 473                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 474                         if ( si->si_rid == sc->rid ) {
 475                                 cmdline_cookie_found = 1;
 476                                 break;
 477                         }
 478                 }
 479
 480                 if ( cmdline_cookie_found ) {
 481                         /* cookie is supplied in the command line */
 482
 483                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 484
 485                         /* ctxcsn wasn't parsed yet, do it now */
 486                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 487                         if ( BER_BVISNULL( &sc->ctxcsn ) ) {
 488                                 /* if cmdline cookie does not have ctxcsn */
 489                                 /* component, set it to an initial value */
 490                                 slap_init_sync_cookie_ctxcsn( sc );
 491                         }
 492                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 493                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 494                         slap_sync_cookie_free( sc, 1 );
 495                 }
 496
 497                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 498                         &si->si_syncCookie.ctxcsn, si->si_syncCookie.rid );
 499         }
 500
 501         rc = ldap_sync_search( si, op->o_tmpmemctx );
 502
 503         if( rc != LDAP_SUCCESS ) {
 504                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 505                         "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 506         }
 507
 508 done:
 509         if ( rc ) {
 510                 if ( si->si_ld ) {
 511                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 512                         si->si_ld = NULL;
 513                 }
 514         }
 515
 516         return rc;
 517 }
 518
 519 static int
 520 do_syncrep2(
 521         Operation *op,
 522         syncinfo_t *si )
 523 {
 524         LDAPControl     **rctrls = NULL;
 525         LDAPControl     *rctrlp;
 526
 527         BerElementBuffer berbuf;
 528         BerElement      *ber = (BerElement *)&berbuf;
 529
 530         LDAPMessage     *res = NULL;
 531         LDAPMessage     *msg = NULL;
 532
 533         char            *retoid = NULL;
 534         struct berval   *retdata = NULL;
 535
 536         Entry           *entry = NULL;
 537
 538         int             syncstate;
 539         struct berval   syncUUID = BER_BVNULL;
 540         struct sync_cookie      syncCookie = { BER_BVNULL };
 541         struct sync_cookie      syncCookie_req = { BER_BVNULL };
 542         struct berval           cookie = BER_BVNULL;
 543
 544         int     rc, err, i;
 545         ber_len_t       len;
 546
 547         int rc_efree = 1;
 548
 549         struct berval   *psub;
 550         Modifications   *modlist = NULL;
 551
 552         const char              *text;
 553         int                             match;
 554
 555         struct timeval *tout_p = NULL;
 556         struct timeval tout = { 0, 0 };
 557
 558         int             refreshDeletes = 0;
 559         int             refreshDone = 1;
 560         BerVarray syncUUIDs = NULL;
 561         ber_tag_t si_tag;
 562
 563         if ( slapd_shutdown ) {
 564                 rc = -2;
 565                 goto done;
 566         }
 567
 568         ber_init2( ber, NULL, LBER_USE_DER );
 569         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 570
 571         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
 572
 573         psub = &si->si_be->be_nsuffix[0];
 574
 575         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 576
 577         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 578                 tout_p = &tout;
 579         } else {
 580                 tout_p = NULL;
 581         }
 582
 583         while (( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 584                 tout_p, &res )) > 0 )
 585         {
 586                 if ( slapd_shutdown ) {
 587                         rc = -2;
 588                         goto done;
 589                 }
 590                 for( msg = ldap_first_message( si->si_ld, res );
 591                         msg != NULL;
 592                         msg = ldap_next_message( si->si_ld, msg ) )
 593                 {
 594                         if ( slapd_shutdown ) {
 595                                 rc = -2;
 596                                 goto done;
 597                         }
 598                         switch( ldap_msgtype( msg ) ) {
 599                         case LDAP_RES_SEARCH_ENTRY:
 600                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 601                                 /* we can't work without the control */
 602                                 if ( !rctrls ) {
 603                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: "
 604                                                 "got search entry without "
 605                                                 "control\n", 0, 0, 0 );
 606                                         rc = -1;
 607                                         goto done;
 608                                 }
 609                                 rctrlp = *rctrls;
 610                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 611                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 612                                 /* FIXME: what if syncUUID is NULL or empty? */
 613                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 614                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 615                                         if ( !BER_BVISNULL( &cookie ) ) {
 616                                                 ch_free( syncCookie.octet_str.bv_val );
 617                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 618                                         }
 619                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 620                                         {
 621                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 622                                         }
 623                                 }
 624                                 if ( syncrepl_message_to_entry( si, op, msg,
 625                                         &modlist, &entry, syncstate ) == LDAP_SUCCESS ) {
 626                                         rc_efree = syncrepl_entry( si, op, entry, &modlist,
 627                                                 syncstate, &syncUUID, &syncCookie_req, &syncCookie.ctxcsn );
 628                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 629                                         {
 630                                                 syncrepl_updateCookie( si, op, psub, &syncCookie );
 631                                         }
 632                                 }
 633                                 ldap_controls_free( rctrls );
 634                                 if ( modlist ) {
 635                                         slap_mods_free( modlist, 1 );
 636                                 }
 637                                 if ( rc_efree && entry ) {
 638                                         entry_free( entry );
 639                                 }
 640                                 entry = NULL;
 641                                 break;
 642
 643                         case LDAP_RES_SEARCH_REFERENCE:
 644                                 Debug( LDAP_DEBUG_ANY,
 645                                         "do_syncrep2: reference received error\n", 0, 0, 0 );
 646                                 break;
 647
 648                         case LDAP_RES_SEARCH_RESULT:
 649                                 Debug( LDAP_DEBUG_SYNC,
 650                                         "do_syncrep2: LDAP_RES_SEARCH_RESULT\n", 0, 0, 0 );
 651                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 652                                         &rctrls, 0 );
 653                                 if ( rctrls ) {
 654                                         rctrlp = *rctrls;
 655                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 656
 657                                         ber_scanf( ber, "{" /*"}"*/);
 658                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 659                                                 ber_scanf( ber, "m", &cookie );
 660                                                 if ( !BER_BVISNULL( &cookie ) ) {
 661                                                         ch_free( syncCookie.octet_str.bv_val );
 662                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 663                                                 }
 664                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 665                                                 {
 666                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 667                                                 }
 668                                         }
 669                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 670                                         {
 671                                                 ber_scanf( ber, "b", &refreshDeletes );
 672                                         }
 673                                         ber_scanf( ber, /*"{"*/ "}" );
 674                                 }
 675                                 if ( BER_BVISNULL( &syncCookie_req.ctxcsn )) {
 676                                         match = -1;
 677                                 } else if ( BER_BVISNULL( &syncCookie.ctxcsn )) {
 678                                         match = 1;
 679                                 } else {
 680                                         value_match( &match, slap_schema.si_ad_entryCSN,
 681                                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 682                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 683                                                 &syncCookie_req.ctxcsn, &syncCookie.ctxcsn,
 684                                                 &text );
 685                                 }
 686                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) &&
 687                                         match < 0 && err == LDAP_SUCCESS )
 688                                 {
 689                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 690                                 }
 691                                 if ( rctrls ) {
 692                                         ldap_controls_free( rctrls );
 693                                 }
 694                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 695                                         /* FIXME : different error behaviors according to
 696                                          *      1) err code : LDAP_BUSY ...
 697                                          *      2) on err policy : stop service, stop sync, retry
 698                                          */
 699                                         if ( refreshDeletes == 0 && match < 0 &&
 700                                                 err == LDAP_SUCCESS )
 701                                         {
 702                                                 syncrepl_del_nonpresent( op, si, NULL );
 703                                         } else {
 704                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 705                                                 si->si_presentlist = NULL;
 706                                         }
 707                                 }
 708                                 rc = -2;
 709                                 goto done;
 710                                 break;
 711
 712                         case LDAP_RES_INTERMEDIATE:
 713                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 714                                         &retoid, &retdata, NULL, 0 );
 715                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 716                                         ber_init2( ber, retdata, LBER_USE_DER );
 717
 718                                         switch ( si_tag = ber_peek_tag( ber, &len )) {
 719                                         ber_tag_t tag;
 720                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 721                                                 Debug( LDAP_DEBUG_SYNC,
 722                                                         "do_syncrep2: %s - %s%s\n",
 723                                                         "LDAP_RES_INTERMEDIATE",
 724                                                         "NEW_COOKIE", "\n" );
 725                                                 ber_scanf( ber, "tm", &tag, &cookie );
 726                                                 break;
 727                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 728                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 729                                                 Debug( LDAP_DEBUG_SYNC,
 730                                                         "do_syncrep2: %s - %s%s\n",
 731                                                         "LDAP_RES_INTERMEDIATE",
 732                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 733                                                         "REFRESH_PRESENT" : "REFRESH_DELETE",
 734                                                         "\n" );
 735                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 736                                                         si->si_refreshDelete = 1;
 737                                                 } else {
 738                                                         si->si_refreshPresent = 1;
 739                                                 }
 740                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 741                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 742                                                 {
 743                                                         ber_scanf( ber, "m", &cookie );
 744                                                         if ( !BER_BVISNULL( &cookie ) ) {
 745                                                                 ch_free( syncCookie.octet_str.bv_val );
 746                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 747                                                         }
 748                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 749                                                         {
 750                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 751                                                         }
 752                                                 }
 753                                                 if ( ber_peek_tag( ber, &len ) ==
 754                                                         LDAP_TAG_REFRESHDONE )
 755                                                 {
 756                                                         ber_scanf( ber, "b", &refreshDone );
 757                                                 }
 758                                                 ber_scanf( ber, /*"{"*/ "}" );
 759                                                 break;
 760                                         case LDAP_TAG_SYNC_ID_SET:
 761                                                 Debug( LDAP_DEBUG_SYNC,
 762                                                         "do_syncrep2: %s - %s%s\n",
 763                                                         "LDAP_RES_INTERMEDIATE",
 764                                                         "SYNC_ID_SET",
 765                                                         "\n" );
 766                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 767                                                 if ( ber_peek_tag( ber, &len ) ==
 768                                                         LDAP_TAG_SYNC_COOKIE )
 769                                                 {
 770                                                         ber_scanf( ber, "m", &cookie );
 771                                                         if ( !BER_BVISNULL( &cookie ) ) {
 772                                                                 ch_free( syncCookie.octet_str.bv_val );
 773                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 774                                                         }
 775                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 776                                                         {
 777                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 778                                                         }
 779                                                 }
 780                                                 if ( ber_peek_tag( ber, &len ) ==
 781                                                         LDAP_TAG_REFRESHDELETES )
 782                                                 {
 783                                                         ber_scanf( ber, "b", &refreshDeletes );
 784                                                 }
 785                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 786                                                 ber_scanf( ber, /*"{"*/ "}" );
 787                                                 if ( refreshDeletes ) {
 788                                                         syncrepl_del_nonpresent( op, si, syncUUIDs );
 789                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
 790                                                 } else {
 791                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
 792                                                                 struct berval *syncuuid_bv;
 793                                                                 syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 794                                                                 slap_sl_free( syncUUIDs[i].bv_val,op->o_tmpmemctx );
 795                                                                 avl_insert( &si->si_presentlist,
 796                                                                         (caddr_t) syncuuid_bv,
 797                                                                         syncuuid_cmp, avl_dup_error );
 798                                                         }
 799                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
 800                                                 }
 801                                                 break;
 802                                         default:
 803                                                 Debug( LDAP_DEBUG_ANY,
 804                                                         "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 805                                                 (long) si_tag, 0, 0 );
 806                                                 ldap_memfree( retoid );
 807                                                 ber_bvfree( retdata );
 808                                                 continue;
 809                                         }
 810
 811                                         if ( BER_BVISNULL( &syncCookie_req.ctxcsn )) {
 812                                                 match = -1;
 813                                         } else if ( BER_BVISNULL( &syncCookie.ctxcsn )) {
 814                                                 match = 1;
 815                                         } else {
 816                                                 value_match( &match, slap_schema.si_ad_entryCSN,
 817                                                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 818                                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 819                                                         &syncCookie_req.ctxcsn,
 820                                                         &syncCookie.ctxcsn, &text );
 821                                         }
 822
 823                                         if ( !BER_BVISNULL( &syncCookie.ctxcsn ) &&
 824                                                 match < 0 )
 825                                         {
 826                                                 syncrepl_updateCookie( si, op, psub, &syncCookie);
 827                                         }
 828
 829                                         if ( si->si_refreshPresent == 1 ) {
 830                                                 if ( match < 0 ) {
 831                                                         syncrepl_del_nonpresent( op, si, NULL );
 832                                                 }
 833                                         }
 834
 835                                         ldap_memfree( retoid );
 836                                         ber_bvfree( retdata );
 837                                         break;
 838
 839                                 } else {
 840                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 841                                                 "unknown intermediate response (%d)\n",
 842                                                 rc, 0, 0 );
 843                                         ldap_memfree( retoid );
 844                                         ber_bvfree( retdata );
 845                                         break;
 846                                 }
 847                                 break;
 848
 849                         default:
 850                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 851                                         "unknown message\n", 0, 0, 0 );
 852                                 break;
 853
 854                         }
 855                         if ( !BER_BVISNULL( &syncCookie.octet_str )) {
 856                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 857                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
 858                                 slap_sync_cookie_free( &syncCookie, 0 );
 859                         }
 860                 }
 861                 ldap_msgfree( res );
 862                 res = NULL;
 863         }
 864
 865         if ( rc == -1 ) {
 866                 const char *errstr;
 867
 868                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
 869                 errstr = ldap_err2string( rc );
 870
 871                 Debug( LDAP_DEBUG_ANY,
 872                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 873         }
 874
 875 done:
 876         slap_sync_cookie_free( &syncCookie, 0 );
 877         slap_sync_cookie_free( &syncCookie_req, 0 );
 878
 879         if ( res ) ldap_msgfree( res );
 880
 881         if ( rc && si->si_ld ) {
 882                 ldap_unbind_ext( si->si_ld, NULL, NULL );
 883                 si->si_ld = NULL;
 884         }
 885
 886         return rc;
 887 }
 888
 889 static void *
 890 do_syncrepl(
 891         void    *ctx,
 892         void    *arg )
 893 {
 894         struct re_s* rtask = arg;
 895         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
 896         Connection conn = {0};
 897         char opbuf[OPERATION_BUFFER_SIZE];
 898         Operation *op;
 899         int rc = LDAP_SUCCESS;
 900         int first = 0;
 901         int dostop = 0;
 902         ber_socket_t s;
 903         int i, defer = 1;
 904         Backend *be;
 905
 906         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 907
 908         if ( si == NULL )
 909                 return NULL;
 910
 911         ldap_pvt_thread_mutex_lock( &si->si_mutex );
 912
 913         switch( abs( si->si_type )) {
 914         case LDAP_SYNC_REFRESH_ONLY:
 915         case LDAP_SYNC_REFRESH_AND_PERSIST:
 916                 break;
 917         default:
 918                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
 919                 return NULL;
 920         }
 921
 922         if ( slapd_shutdown ) {
 923                 if ( si->si_ld ) {
 924                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 925                         connection_client_stop( s );
 926                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 927                         si->si_ld = NULL;
 928                 }
 929                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
 930                 return NULL;
 931         }
 932
 933         op = (Operation *)opbuf;
 934         connection_fake_init( &conn, op, ctx );
 935
 936         /* use global malloc for now */
 937         op->o_tmpmemctx = NULL;
 938         op->o_tmpmfuncs = &ch_mfuncs;
 939
 940         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 941         op->o_bd = be = si->si_be;
 942         op->o_dn = op->o_bd->be_rootdn;
 943         op->o_ndn = op->o_bd->be_rootndn;
 944
 945         /* Establish session, do search */
 946         if ( !si->si_ld ) {
 947                 first = 1;
 948                 si->si_refreshDelete = 0;
 949                 si->si_refreshPresent = 0;
 950                 rc = do_syncrep1( op, si );
 951         }
 952
 953         /* Process results */
 954         if ( rc == LDAP_SUCCESS ) {
 955                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 956
 957                 rc = do_syncrep2( op, si );
 958
 959                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 960                         /* If we succeeded, enable the connection for further listening.
 961                          * If we failed, tear down the connection and reschedule.
 962                          */
 963                         if ( rc == LDAP_SUCCESS ) {
 964                                 if ( first ) {
 965                                         rc = connection_client_setup( s, do_syncrepl, arg );
 966                                 } else {
 967                                         connection_client_enable( s );
 968                                 }
 969                         } else if ( !first ) {
 970                                 dostop = 1;
 971                         }
 972                 } else {
 973                         if ( rc == -2 ) rc = 0;
 974                 }
 975         }
 976
 977         /* At this point, we have 4 cases:
 978          * 1) for any hard failure, give up and remove this task
 979          * 2) for ServerDown, reschedule this task to run
 980          * 3) for Refresh and Success, reschedule to run
 981          * 4) for Persist and Success, reschedule to defer
 982          */
 983         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 984
 985         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
 986                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
 987         }
 988
 989         if ( dostop ) {
 990                 connection_client_stop( s );
 991         }
 992
 993         if ( rc == LDAP_SUCCESS ) {
 994                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
 995                         defer = 0;
 996                 }
 997                 rtask->interval.tv_sec = si->si_interval;
 998                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
 999                 if ( si->si_retrynum ) {
1000                         for ( i = 0; si->si_retrynum_init[i] != -2; i++ ) {
1001                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1002                         }
1003                         si->si_retrynum[i] = -2;
1004                 }
1005         } else {
1006                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1007                         if ( si->si_retrynum[i] == -1  || si->si_retrynum[i] == -2 )
1008                                 break;
1009                 }
1010
1011                 if ( !si->si_retrynum || si->si_retrynum[i] == -2 ) {
1012                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1013                 } else if ( si->si_retrynum[i] >= -1 ) {
1014                         if ( si->si_retrynum[i] > 0 )
1015                                 si->si_retrynum[i]--;
1016                         rtask->interval.tv_sec = si->si_retryinterval[i];
1017                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1018                         slap_wake_listener();
1019                 }
1020         }
1021
1022         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1023         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1024
1025         return NULL;
1026 }
1027
1028 static int
1029 syncrepl_message_to_entry(
1030         syncinfo_t      *si,
1031         Operation       *op,
1032         LDAPMessage     *msg,
1033         Modifications   **modlist,
1034         Entry                   **entry,
1035         int             syncstate
1036 )
1037 {
1038         Entry           *e = NULL;
1039         BerElement      *ber = NULL;
1040         Modifications   tmp;
1041         Modifications   *mod;
1042         Modifications   **modtail = modlist;
1043
1044         const char      *text;
1045         char txtbuf[SLAP_TEXT_BUFLEN];
1046         size_t textlen = sizeof txtbuf;
1047
1048         struct berval   bdn = {0, NULL}, dn, ndn;
1049         int             rc;
1050
1051         *modlist = NULL;
1052
1053         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1054                 Debug( LDAP_DEBUG_ANY,
1055                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
1056                 return -1;
1057         }
1058
1059         op->o_tag = LDAP_REQ_ADD;
1060
1061         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1062
1063         if ( rc != LDAP_SUCCESS ) {
1064                 Debug( LDAP_DEBUG_ANY,
1065                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
1066                 return rc;
1067         }
1068
1069         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1070         ber_dupbv( &op->o_req_dn, &dn );
1071         ber_dupbv( &op->o_req_ndn, &ndn );
1072         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1073         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1074
1075         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1076                 if ( entry )
1077                         *entry = NULL;
1078                 return LDAP_SUCCESS;
1079         }
1080
1081         if ( entry == NULL ) {
1082                 return -1;
1083         }
1084
1085         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
1086         *entry = e;
1087         e->e_name = op->o_req_dn;
1088         e->e_nname = op->o_req_ndn;
1089
1090         while ( ber_remaining( ber ) ) {
1091                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1092                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1093                 {
1094                         break;
1095                 }
1096
1097                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
1098
1099                 mod->sml_op = LDAP_MOD_REPLACE;
1100                 mod->sml_flags = 0;
1101                 mod->sml_next = NULL;
1102                 mod->sml_desc = NULL;
1103                 mod->sml_type = tmp.sml_type;
1104                 mod->sml_values = tmp.sml_values;
1105                 mod->sml_nvalues = NULL;
1106
1107                 *modtail = mod;
1108                 modtail = &mod->sml_next;
1109         }
1110
1111         if ( *modlist == NULL ) {
1112                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
1113                         0, 0, 0 );
1114                 rc = -1;
1115                 goto done;
1116         }
1117
1118         rc = slap_mods_check( *modlist, &text, txtbuf, textlen, NULL );
1119
1120         if ( rc != LDAP_SUCCESS ) {
1121                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
1122                         text, 0, 0 );
1123                 goto done;
1124         }
1125
1126         /* Strip out dynamically generated attrs */
1127         for ( modtail = modlist; *modtail ; ) {
1128                 mod = *modtail;
1129                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1130                         *modtail = mod->sml_next;
1131                         slap_mod_free( &mod->sml_mod, 0 );
1132                         ch_free( mod );
1133                 } else {
1134                         modtail = &mod->sml_next;
1135                 }
1136         }
1137
1138         /* Strip out attrs in exattrs list */
1139         for ( modtail = modlist; *modtail ; ) {
1140                 mod = *modtail;
1141                 if ( ldap_charray_inlist( si->si_exattrs,
1142                                         mod->sml_desc->ad_type->sat_cname.bv_val )) {
1143                         *modtail = mod->sml_next;
1144                         slap_mod_free( &mod->sml_mod, 0 );
1145                         ch_free( mod );
1146                 } else {
1147                         modtail = &mod->sml_next;
1148                 }
1149         }
1150
1151         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1152         if( rc != LDAP_SUCCESS ) {
1153                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
1154                         text, 0, 0 );
1155         }
1156
1157 done:
1158         ber_free ( ber, 0 );
1159         if ( rc != LDAP_SUCCESS ) {
1160                 if ( e ) {
1161                         entry_free( e );
1162                         *entry = e = NULL;
1163                 }
1164         }
1165
1166         return rc;
1167 }
1168
1169 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1170
1171 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1172  * entry if a previous refresh was interrupted before sending us a new
1173  * context state. We try to compare the new entry to the existing entry
1174  * and ignore the new entry if they are the same.
1175  *
1176  * Also, we may get an update where the entryDN has changed, due to
1177  * a ModDn on the provider. We detect this as well, so we can issue
1178  * the corresponding operation locally.
1179  *
1180  * In the case of a modify, we get a list of all the attributes
1181  * in the original entry. Rather than deleting the entry and re-adding it,
1182  * we issue a Modify request that deletes all the attributes and adds all
1183  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1184  * entry.
1185  *
1186  * We don't try to otherwise distinguish ModDN from Modify; in the case of
1187  * a ModDN we will issue both operations on the local database.
1188  */
1189 typedef struct dninfo {
1190         Entry *new_entry;
1191         struct berval dn;
1192         struct berval ndn;
1193         int renamed;    /* Was an existing entry renamed? */
1194         int wasChanged; /* are the attributes changed? */
1195         int attrs;              /* how many attribute types are in the ads list */
1196         AttributeDescription **ads;
1197 } dninfo;
1198
1199 static int
1200 syncrepl_entry(
1201         syncinfo_t* si,
1202         Operation *op,
1203         Entry* entry,
1204         Modifications** modlist,
1205         int syncstate,
1206         struct berval* syncUUID,
1207         struct sync_cookie* syncCookie_req,
1208         struct berval* syncCSN )
1209 {
1210         Backend *be = op->o_bd;
1211         slap_callback   cb = { NULL, NULL, NULL, NULL };
1212         struct berval   *syncuuid_bv = NULL;
1213         struct berval   syncUUID_strrep = BER_BVNULL;
1214         struct berval   uuid_bv = BER_BVNULL;
1215
1216         SlapReply       rs_search = {REP_RESULT};
1217         SlapReply       rs_delete = {REP_RESULT};
1218         SlapReply       rs_add = {REP_RESULT};
1219         SlapReply       rs_modify = {REP_RESULT};
1220         Filter f = {0};
1221 #ifdef LDAP_COMP_MATCH
1222         AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
1223 #else
1224         AttributeAssertion ava = { NULL, BER_BVNULL };
1225 #endif
1226         int rc = LDAP_SUCCESS;
1227         int ret = LDAP_SUCCESS;
1228
1229         struct berval pdn = BER_BVNULL;
1230         dninfo dni = {0};
1231         int     retry = 1;
1232
1233         switch( syncstate ) {
1234         case LDAP_SYNC_PRESENT:
1235                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1236                                         "syncrepl_entry",
1237                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
1238                 break;
1239         case LDAP_SYNC_ADD:
1240                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1241                                         "syncrepl_entry",
1242                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
1243                 break;
1244         case LDAP_SYNC_DELETE:
1245                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1246                                         "syncrepl_entry",
1247                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
1248                 break;
1249         case LDAP_SYNC_MODIFY:
1250                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1251                                         "syncrepl_entry",
1252                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
1253                 break;
1254         default:
1255                 Debug( LDAP_DEBUG_ANY, "%s: %s\n",
1256                                         "syncrepl_entry",
1257                                         "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
1258         }
1259
1260         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD )) {
1261                 if ( !si->si_refreshPresent ) {
1262                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1263                         avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1264                                 syncuuid_cmp, avl_dup_error );
1265                 }
1266         }
1267
1268         if ( syncstate == LDAP_SYNC_PRESENT ) {
1269                 return 0;
1270         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1271                 if ( entry == NULL ) {
1272                         return 0;
1273                 }
1274         }
1275
1276         f.f_choice = LDAP_FILTER_EQUALITY;
1277         f.f_ava = &ava;
1278         ava.aa_desc = slap_schema.si_ad_entryUUID;
1279         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1280         ava.aa_value = *syncUUID;
1281         op->ors_filter = &f;
1282
1283         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID->bv_len;
1284         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1285                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1286         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1287         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1288                 syncUUID->bv_val, syncUUID->bv_len );
1289         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1290         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1291
1292         op->o_tag = LDAP_REQ_SEARCH;
1293         op->ors_scope = LDAP_SCOPE_SUBTREE;
1294         op->ors_deref = LDAP_DEREF_NEVER;
1295
1296         /* get the entry for this UUID */
1297         op->o_req_dn = si->si_base;
1298         op->o_req_ndn = si->si_base;
1299
1300         op->o_time = slap_get_time();
1301         op->ors_tlimit = SLAP_NO_LIMIT;
1302         op->ors_slimit = 1;
1303
1304         op->ors_attrs = slap_anlist_all_attributes;
1305         op->ors_attrsonly = 0;
1306
1307         /* set callback function */
1308         op->o_callback = &cb;
1309         cb.sc_response = dn_callback;
1310         cb.sc_private = &dni;
1311         dni.new_entry = entry;
1312
1313         if ( limits_check( op, &rs_search ) == 0 ) {
1314                 rc = be->be_search( op, &rs_search );
1315                 Debug( LDAP_DEBUG_SYNC,
1316                                 "syncrepl_entry: %s (%d)\n",
1317                                 "be_search", rc, 0 );
1318         }
1319
1320         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1321                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1322         }
1323
1324         cb.sc_response = null_callback;
1325         cb.sc_private = si;
1326
1327         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1328                 Debug( LDAP_DEBUG_SYNC,
1329                                 "syncrepl_entry: %s\n",
1330                                 entry->e_name.bv_val, 0, 0 );
1331         } else {
1332                 Debug( LDAP_DEBUG_SYNC,
1333                                 "syncrepl_entry: %s\n",
1334                                 dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0, 0 );
1335         }
1336
1337         if ( syncstate != LDAP_SYNC_DELETE ) {
1338                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1339
1340                 if ( a == NULL ) {
1341                         /* add if missing */
1342                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1343                                 &syncUUID_strrep, syncUUID );
1344
1345                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1346                         /* replace only if necessary */
1347                         if ( a->a_nvals != a->a_vals ) {
1348                                 ber_memfree( a->a_nvals[0].bv_val );
1349                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1350                         }
1351                         ber_memfree( a->a_vals[0].bv_val );
1352                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1353                 }
1354         }
1355
1356         switch ( syncstate ) {
1357         case LDAP_SYNC_ADD:
1358         case LDAP_SYNC_MODIFY:
1359 retry_add:;
1360                 if ( BER_BVISNULL( &dni.dn )) {
1361
1362                         op->o_req_dn = entry->e_name;
1363                         op->o_req_ndn = entry->e_nname;
1364                         op->o_tag = LDAP_REQ_ADD;
1365                         op->ora_e = entry;
1366
1367                         rc = be->be_add( op, &rs_add );
1368                         Debug( LDAP_DEBUG_SYNC,
1369                                         "syncrepl_entry: %s (%d)\n",
1370                                         "be_add", rc, 0 );
1371                         switch ( rs_add.sr_err ) {
1372                         case LDAP_SUCCESS:
1373                                 be_entry_release_w( op, entry );
1374                                 ret = 0;
1375                                 break;
1376
1377                         case LDAP_REFERRAL:
1378                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
1379                          * only if the suffix entry is not present */
1380                         case LDAP_NO_SUCH_OBJECT:
1381                                 syncrepl_add_glue( op, entry );
1382                                 ret = 0;
1383                                 break;
1384
1385                         /* if an entry was added via syncrepl_add_glue(),
1386                          * it likely has no entryUUID, so the previous
1387                          * be_search() doesn't find it.  In this case,
1388                          * give syncrepl a chance to modify it. Also
1389                          * allow for entries that were recreated with the
1390                          * same DN but a different entryUUID.
1391                          */
1392                         case LDAP_ALREADY_EXISTS:
1393                                 if ( retry ) {
1394                                         Operation       op2 = *op;
1395                                         SlapReply       rs2 = { 0 };
1396                                         slap_callback   cb2 = { 0 };
1397
1398                                         op2.o_tag = LDAP_REQ_SEARCH;
1399                                         op2.o_req_dn = entry->e_name;
1400                                         op2.o_req_ndn = entry->e_nname;
1401                                         op2.ors_scope = LDAP_SCOPE_BASE;
1402                                         op2.ors_deref = LDAP_DEREF_NEVER;
1403                                         op2.ors_attrs = slap_anlist_all_attributes;
1404                                         op2.ors_attrsonly = 0;
1405                                         op2.ors_limit = NULL;
1406                                         op2.ors_slimit = 1;
1407                                         op2.ors_tlimit = SLAP_NO_LIMIT;
1408
1409                                         f.f_choice = LDAP_FILTER_PRESENT;
1410                                         f.f_desc = slap_schema.si_ad_objectClass;
1411                                         op2.ors_filter = &f;
1412                                         op2.ors_filterstr = generic_filterstr;
1413
1414                                         op2.o_callback = &cb2;
1415                                         cb2.sc_response = dn_callback;
1416                                         cb2.sc_private = &dni;
1417
1418                                         be->be_search( &op2, &rs2 );
1419
1420                                         retry = 0;
1421                                         goto retry_add;
1422                                 }
1423                                 /* FALLTHRU */
1424
1425                         default:
1426                                 Debug( LDAP_DEBUG_ANY,
1427                                         "syncrepl_entry : be_add failed (%d)\n",
1428                                         rs_add.sr_err, 0, 0 );
1429                                 ret = 1;
1430                                 break;
1431                         }
1432                         goto done;
1433                 }
1434                 /* FALLTHRU */
1435                 op->o_req_dn = dni.dn;
1436                 op->o_req_ndn = dni.ndn;
1437                 if ( dni.renamed ) {
1438                         struct berval noldp, newp, nnewp;
1439
1440                         op->o_tag = LDAP_REQ_MODRDN;
1441                         dnRdn( &entry->e_name, &op->orr_newrdn );
1442                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
1443
1444                         dnParent( &dni.ndn, &noldp );
1445                         dnParent( &entry->e_nname, &nnewp );
1446                         if ( !dn_match( &noldp, &newp )) {
1447                                 dnParent( &entry->e_name, &newp );
1448                                 op->orr_newSup = &newp;
1449                                 op->orr_nnewSup = &nnewp;
1450                         }
1451                         op->orr_deleteoldrdn = 0;
1452                         rc = be->be_modrdn( op, &rs_modify );
1453                         Debug( LDAP_DEBUG_SYNC,
1454                                         "syncrepl_entry: %s (%d)\n",
1455                                         "be_modrdn", rc, 0 );
1456                         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
1457                                 op->o_req_dn = entry->e_name;
1458                                 op->o_req_ndn = entry->e_nname;
1459                         } else {
1460                                 ret = 1;
1461                                 goto done;
1462                         }
1463                 }
1464                 if ( dni.wasChanged ) {
1465                         Modifications *mod, *modhead = NULL;
1466                         Modifications *modtail = NULL;
1467                         int i;
1468
1469                         op->o_tag = LDAP_REQ_MODIFY;
1470
1471                         assert( *modlist != NULL );
1472
1473                         /* Delete all the old attrs */
1474                         for ( i = 0; i < dni.attrs; i++ ) {
1475                                 mod = ch_malloc( sizeof( Modifications ) );
1476                                 mod->sml_op = LDAP_MOD_DELETE;
1477                                 mod->sml_flags = 0;
1478                                 mod->sml_desc = dni.ads[i];
1479                                 mod->sml_type = mod->sml_desc->ad_cname;
1480                                 mod->sml_values = NULL;
1481                                 mod->sml_nvalues = NULL;
1482                                 if ( !modhead ) modhead = mod;
1483                                 if ( modtail ) {
1484                                         modtail->sml_next = mod;
1485                                 }
1486                                 modtail = mod;
1487                         }
1488
1489                         /* Append passed in list to ours */
1490                         if ( modtail ) {
1491                                 modtail->sml_next = *modlist;
1492                                 *modlist = modhead;
1493                         } else {
1494                                 mod = *modlist;
1495                         }
1496
1497                         /* Find end of this list */
1498                         for ( ; mod != NULL; mod = mod->sml_next ) {
1499                                 modtail = mod;
1500                         }
1501
1502                         mod = (Modifications *)ch_calloc(1, sizeof(Modifications));
1503                         mod->sml_op = LDAP_MOD_REPLACE;
1504                         mod->sml_flags = 0;
1505                         mod->sml_desc = slap_schema.si_ad_entryUUID;
1506                         mod->sml_type = mod->sml_desc->ad_cname;
1507                         ber_dupbv( &uuid_bv, &syncUUID_strrep );
1508                         ber_bvarray_add( &mod->sml_values, &uuid_bv );
1509                         ber_dupbv( &uuid_bv, syncUUID );
1510                         ber_bvarray_add( &mod->sml_nvalues, &uuid_bv );
1511                         modtail->sml_next = mod;
1512
1513                         op->o_tag = LDAP_REQ_MODIFY;
1514                         op->orm_modlist = *modlist;
1515
1516                         rc = be->be_modify( op, &rs_modify );
1517                         Debug( LDAP_DEBUG_SYNC,
1518                                         "syncrepl_entry: %s (%d)\n",
1519                                         "be_modify", rc, 0 );
1520                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1521                                 Debug( LDAP_DEBUG_ANY,
1522                                         "syncrepl_entry : be_modify failed (%d)\n",
1523                                         rs_modify.sr_err, 0, 0 );
1524                         }
1525                 }
1526                 ret = 1;
1527                 goto done;
1528         case LDAP_SYNC_DELETE :
1529                 if ( !BER_BVISNULL( &dni.dn )) {
1530                         op->o_req_dn = dni.dn;
1531                         op->o_req_ndn = dni.ndn;
1532                         op->o_tag = LDAP_REQ_DELETE;
1533                         rc = be->be_delete( op, &rs_delete );
1534                         Debug( LDAP_DEBUG_SYNC,
1535                                         "syncrepl_entry: %s (%d)\n",
1536                                         "be_delete", rc, 0 );
1537
1538                         while ( rs_delete.sr_err == LDAP_SUCCESS
1539                                 && op->o_delete_glue_parent ) {
1540                                 op->o_delete_glue_parent = 0;
1541                                 if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1542                                         slap_callback cb = { NULL };
1543                                         cb.sc_response = slap_null_cb;
1544                                         dnParent( &op->o_req_ndn, &pdn );
1545                                         op->o_req_dn = pdn;
1546                                         op->o_req_ndn = pdn;
1547                                         op->o_callback = &cb;
1548                                         op->o_bd->be_delete( op, &rs_delete );
1549                                 } else {
1550                                         break;
1551                                 }
1552                         }
1553                 }
1554                 ret = 0;
1555                 goto done;
1556
1557         default :
1558                 Debug( LDAP_DEBUG_ANY,
1559                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1560                 ret = 1;
1561                 goto done;
1562         }
1563
1564 done :
1565         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
1566                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
1567                 BER_BVZERO( &syncUUID_strrep );
1568         }
1569         if ( dni.ads ) {
1570                 op->o_tmpfree( dni.ads, op->o_tmpmemctx );
1571         }
1572         if ( !BER_BVISNULL( &dni.ndn ) ) {
1573                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
1574         }
1575         if ( !BER_BVISNULL( &dni.dn ) ) {
1576                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
1577         }
1578         return ret;
1579 }
1580
1581 static struct berval gcbva[] = {
1582         BER_BVC("top"),
1583         BER_BVC("glue"),
1584         BER_BVNULL
1585 };
1586
1587 #define NP_DELETE_ONE   2
1588
1589 static void
1590 syncrepl_del_nonpresent(
1591         Operation *op,
1592         syncinfo_t *si,
1593         BerVarray uuids )
1594 {
1595         Backend* be = op->o_bd;
1596         slap_callback   cb = { NULL };
1597         SlapReply       rs_search = {REP_RESULT};
1598         SlapReply       rs_delete = {REP_RESULT};
1599         SlapReply       rs_modify = {REP_RESULT};
1600         struct nonpresent_entry *np_list, *np_prev;
1601         int rc;
1602         AttributeName   an[2];
1603
1604         struct berval pdn = BER_BVNULL;
1605
1606         op->o_req_dn = si->si_base;
1607         op->o_req_ndn = si->si_base;
1608
1609         cb.sc_response = nonpresent_callback;
1610         cb.sc_private = si;
1611
1612         op->o_callback = &cb;
1613         op->o_tag = LDAP_REQ_SEARCH;
1614         op->ors_scope = si->si_scope;
1615         op->ors_deref = LDAP_DEREF_NEVER;
1616         op->o_time = slap_get_time();
1617         op->ors_tlimit = SLAP_NO_LIMIT;
1618
1619
1620         if ( uuids ) {
1621                 Filter uf;
1622 #ifdef LDAP_COMP_MATCH
1623                 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
1624 #else
1625                 AttributeAssertion eq = { NULL, BER_BVNULL };
1626 #endif
1627                 int i;
1628
1629                 op->ors_attrsonly = 1;
1630                 op->ors_attrs = slap_anlist_no_attrs;
1631                 op->ors_limit = NULL;
1632                 op->ors_filter = &uf;
1633
1634                 uf.f_ava = &eq;
1635                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
1636                 uf.f_next = NULL;
1637                 uf.f_choice = LDAP_FILTER_EQUALITY;
1638                 si->si_refreshDelete |= NP_DELETE_ONE;
1639
1640                 for (i=0; uuids[i].bv_val; i++) {
1641                         op->ors_slimit = 1;
1642                         uf.f_av_value = uuids[i];
1643                         rc = be->be_search( op, &rs_search );
1644                 }
1645                 si->si_refreshDelete ^= NP_DELETE_ONE;
1646         } else {
1647                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
1648                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
1649                 an[0].an_desc = slap_schema.si_ad_entryUUID;
1650                 op->ors_attrs = an;
1651                 op->ors_slimit = SLAP_NO_LIMIT;
1652                 op->ors_attrsonly = 0;
1653                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
1654                 op->ors_filterstr = si->si_filterstr;
1655                 op->o_nocaching = 1;
1656
1657                 if ( limits_check( op, &rs_search ) == 0 ) {
1658                         rc = be->be_search( op, &rs_search );
1659                 }
1660                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
1661         }
1662
1663         op->o_nocaching = 0;
1664
1665         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
1666
1667                 slap_queue_csn( op, &si->si_syncCookie.ctxcsn );
1668
1669                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
1670                 while ( np_list != NULL ) {
1671                         LDAP_LIST_REMOVE( np_list, npe_link );
1672                         np_prev = np_list;
1673                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
1674                         op->o_tag = LDAP_REQ_DELETE;
1675                         op->o_callback = &cb;
1676                         cb.sc_response = null_callback;
1677                         cb.sc_private = si;
1678                         op->o_req_dn = *np_prev->npe_name;
1679                         op->o_req_ndn = *np_prev->npe_nname;
1680                         rc = op->o_bd->be_delete( op, &rs_delete );
1681
1682                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
1683                                 Modifications mod1, mod2;
1684                                 mod1.sml_op = LDAP_MOD_REPLACE;
1685                                 mod1.sml_flags = 0;
1686                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
1687                                 mod1.sml_type = mod1.sml_desc->ad_cname;
1688                                 mod1.sml_values = &gcbva[0];
1689                                 mod1.sml_nvalues = NULL;
1690                                 mod1.sml_next = &mod2;
1691
1692                                 mod2.sml_op = LDAP_MOD_REPLACE;
1693                                 mod2.sml_flags = 0;
1694                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
1695                                 mod2.sml_type = mod2.sml_desc->ad_cname;
1696                                 mod2.sml_values = &gcbva[1];
1697                                 mod2.sml_nvalues = NULL;
1698                                 mod2.sml_next = NULL;
1699
1700                                 op->o_tag = LDAP_REQ_MODIFY;
1701                                 op->orm_modlist = &mod1;
1702
1703                                 rc = be->be_modify( op, &rs_modify );
1704                         }
1705
1706                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
1707                                         op->o_delete_glue_parent ) {
1708                                 op->o_delete_glue_parent = 0;
1709                                 if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1710                                         slap_callback cb = { NULL };
1711                                         cb.sc_response = slap_null_cb;
1712                                         dnParent( &op->o_req_ndn, &pdn );
1713                                         op->o_req_dn = pdn;
1714                                         op->o_req_ndn = pdn;
1715                                         op->o_callback = &cb;
1716                                         /* give it a root privil ? */
1717                                         op->o_bd->be_delete( op, &rs_delete );
1718                                 } else {
1719                                         break;
1720                             }
1721                         }
1722
1723                         op->o_delete_glue_parent = 0;
1724
1725                         ber_bvfree( np_prev->npe_name );
1726                         ber_bvfree( np_prev->npe_nname );
1727                         ch_free( np_prev );
1728                 }
1729
1730                 slap_graduate_commit_csn( op );
1731         }
1732
1733         return;
1734 }
1735
1736 void
1737 syncrepl_add_glue(
1738         Operation* op,
1739         Entry *e )
1740 {
1741         Backend *be = op->o_bd;
1742         slap_callback cb = { NULL };
1743         Attribute       *a;
1744         int     rc;
1745         int suffrdns;
1746         int i;
1747         struct berval dn = {0, NULL};
1748         struct berval ndn = {0, NULL};
1749         Entry   *glue;
1750         SlapReply       rs_add = {REP_RESULT};
1751         char    *ptr, *comma;
1752
1753         op->o_tag = LDAP_REQ_ADD;
1754         op->o_callback = &cb;
1755         cb.sc_response = null_callback;
1756         cb.sc_private = NULL;
1757
1758         dn = e->e_name;
1759         ndn = e->e_nname;
1760
1761         /* count RDNs in suffix */
1762         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
1763                 for ( i = 0, ptr = be->be_nsuffix[0].bv_val; ptr; ptr = strchr( ptr, ',' ) ) {
1764                         ptr++;
1765                         i++;
1766                 }
1767                 suffrdns = i;
1768         } else {
1769                 /* suffix is "" */
1770                 suffrdns = 0;
1771         }
1772
1773         /* Start with BE suffix */
1774         for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
1775                 comma = strrchr( dn.bv_val, ',' );
1776                 if ( ptr ) *ptr = ',';
1777                 if ( comma ) *comma = '\0';
1778                 ptr = comma;
1779         }
1780         if ( ptr ) {
1781                 *ptr++ = ',';
1782                 dn.bv_len -= ptr - dn.bv_val;
1783                 dn.bv_val = ptr;
1784         }
1785         /* the normalizedDNs are always the same length, no counting
1786          * required.
1787          */
1788         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
1789                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
1790                 ndn.bv_len = be->be_nsuffix[0].bv_len;
1791         }
1792
1793         while ( ndn.bv_val > e->e_nname.bv_val ) {
1794                 glue = (Entry *) ch_calloc( 1, sizeof(Entry) );
1795                 ber_dupbv( &glue->e_name, &dn );
1796                 ber_dupbv( &glue->e_nname, &ndn );
1797
1798                 a = ch_calloc( 1, sizeof( Attribute ));
1799                 a->a_desc = slap_schema.si_ad_objectClass;
1800
1801                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1802                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
1803                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
1804                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
1805
1806                 a->a_nvals = a->a_vals;
1807
1808                 a->a_next = glue->e_attrs;
1809                 glue->e_attrs = a;
1810
1811                 a = ch_calloc( 1, sizeof( Attribute ));
1812                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1813
1814                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1815                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
1816                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
1817
1818                 a->a_nvals = a->a_vals;
1819
1820                 a->a_next = glue->e_attrs;
1821                 glue->e_attrs = a;
1822
1823                 op->o_req_dn = glue->e_name;
1824                 op->o_req_ndn = glue->e_nname;
1825                 op->ora_e = glue;
1826                 rc = be->be_add ( op, &rs_add );
1827                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
1828                         be_entry_release_w( op, glue );
1829                 } else {
1830                 /* incl. ALREADY EXIST */
1831                         entry_free( glue );
1832                 }
1833
1834                 /* Move to next child */
1835                 for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
1836                         /* empty */
1837                 }
1838                 if ( ptr == e->e_name.bv_val ) break;
1839                 dn.bv_val = ++ptr;
1840                 dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
1841                 for( ptr = ndn.bv_val-2;
1842                         ptr > e->e_nname.bv_val && *ptr != ',';
1843                         ptr--)
1844                 {
1845                         /* empty */
1846                 }
1847                 ndn.bv_val = ++ptr;
1848                 ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
1849         }
1850
1851         op->o_req_dn = e->e_name;
1852         op->o_req_ndn = e->e_nname;
1853         op->ora_e = e;
1854         rc = be->be_add ( op, &rs_add );
1855         if ( rs_add.sr_err == LDAP_SUCCESS ) {
1856                 be_entry_release_w( op, e );
1857         } else {
1858                 entry_free( e );
1859         }
1860
1861         return;
1862 }
1863
1864 static void
1865 syncrepl_updateCookie(
1866         syncinfo_t *si,
1867         Operation *op,
1868         struct berval *pdn,
1869         struct sync_cookie *syncCookie )
1870 {
1871         Backend *be = op->o_bd;
1872         Modifications mod = { { 0 } };
1873         struct berval vals[ 2 ];
1874
1875         int rc;
1876
1877         slap_callback cb = { NULL };
1878         SlapReply       rs_modify = {REP_RESULT};
1879
1880         slap_sync_cookie_free( &si->si_syncCookie, 0 );
1881         slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
1882
1883         mod.sml_op = LDAP_MOD_REPLACE;
1884         mod.sml_desc = slap_schema.si_ad_contextCSN;
1885         mod.sml_type = mod.sml_desc->ad_cname;
1886         mod.sml_values = vals;
1887         vals[0] = si->si_syncCookie.ctxcsn;
1888         vals[1].bv_val = NULL;
1889         vals[1].bv_len = 0;
1890
1891         slap_queue_csn( op, &si->si_syncCookie.ctxcsn );
1892
1893         op->o_tag = LDAP_REQ_MODIFY;
1894
1895         assert( si->si_rid < 1000 );
1896
1897         cb.sc_response = null_callback;
1898         cb.sc_private = si;
1899
1900         op->o_callback = &cb;
1901         op->o_req_dn = op->o_bd->be_suffix[0];
1902         op->o_req_ndn = op->o_bd->be_nsuffix[0];
1903
1904         /* update contextCSN */
1905         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
1906         op->orm_modlist = &mod;
1907         rc = be->be_modify( op, &rs_modify );
1908         op->o_msgid = 0;
1909
1910         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1911                 Debug( LDAP_DEBUG_ANY,
1912                         "be_modify failed (%d)\n", rs_modify.sr_err, 0, 0 );
1913         }
1914
1915         slap_graduate_commit_csn( op );
1916
1917         return;
1918 }
1919
1920 static int
1921 dn_callback(
1922         Operation*      op,
1923         SlapReply*      rs )
1924 {
1925         dninfo *dni = op->o_callback->sc_private;
1926
1927         if ( rs->sr_type == REP_SEARCH ) {
1928                 if ( !BER_BVISNULL( &dni->dn ) ) {
1929                         Debug( LDAP_DEBUG_ANY,
1930                                 "dn_callback : consistency error - "
1931                                 "entryUUID is not unique\n", 0, 0, 0 );
1932                 } else {
1933                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
1934                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
1935                         /* If there is a new entry, see if it differs from the old.
1936                          * We compare the non-normalized values so that cosmetic changes
1937                          * in the provider are always propagated.
1938                          */
1939                         if ( dni->new_entry ) {
1940                                 Attribute *old, *new;
1941                                 int i;
1942
1943                                 /* Did the DN change? Note that we don't explicitly try to
1944                                  * discover if the deleteOldRdn argument applies here. It
1945                                  * would save an unnecessary Modify if we detected it, but
1946                                  * that's a fair amount of trouble to compare the two attr
1947                                  * lists in detail.
1948                                  */
1949                                 if ( !dn_match( &rs->sr_entry->e_name,
1950                                                 &dni->new_entry->e_name ) )
1951                                 {
1952                                         dni->renamed = 1;
1953                                 }
1954
1955                                 for ( i = 0, old = rs->sr_entry->e_attrs;
1956                                                 old;
1957                                                 i++, old = old->a_next )
1958                                         ;
1959
1960                                 dni->attrs = i;
1961
1962                                 /* We assume that attributes are saved in the same order
1963                                  * in the remote and local databases. So if we walk through
1964                                  * the attributeDescriptions one by one they should match in
1965                                  * lock step. If not, we signal a change. Otherwise we test
1966                                  * all the values...
1967                                  */
1968                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
1969                                                 old && new;
1970                                                 old = old->a_next, new = new->a_next )
1971                                 {
1972                                         if ( old->a_desc != new->a_desc ) {
1973                                                 dni->wasChanged = 1;
1974                                                 break;
1975                                         }
1976                                         for ( i = 0; ; i++ ) {
1977                                                 int nold, nnew;
1978                                                 nold = BER_BVISNULL( &old->a_vals[i] );
1979                                                 nnew = BER_BVISNULL( &new->a_vals[i] );
1980                                                 /* If both are empty, stop looking */
1981                                                 if ( nold && nnew ) {
1982                                                         break;
1983                                                 }
1984                                                 /* If they are different, stop looking */
1985                                                 if ( nold != nnew ) {
1986                                                         dni->wasChanged = 1;
1987                                                         break;
1988                                                 }
1989                                                 if ( ber_bvcmp( &old->a_vals[i], &new->a_vals[i] )) {
1990                                                         dni->wasChanged = 1;
1991                                                         break;
1992                                                 }
1993                                         }
1994                                         if ( dni->wasChanged ) break;
1995                                 }
1996                                 if ( dni->wasChanged ) {
1997                                         dni->ads = op->o_tmpalloc( dni->attrs *
1998                                                 sizeof(AttributeDescription *), op->o_tmpmemctx );
1999                                         i = 0;
2000                                         for ( old = rs->sr_entry->e_attrs; old; old = old->a_next ) {
2001                                                 dni->ads[i] = old->a_desc;
2002                                                 i++;
2003                                         }
2004                                 }
2005                         }
2006                 }
2007         } else if ( rs->sr_type == REP_RESULT ) {
2008                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
2009                         Debug( LDAP_DEBUG_ANY,
2010                                 "dn_callback : consistency error - "
2011                                 "entryUUID is not unique\n", 0, 0, 0 );
2012                 }
2013         }
2014
2015         return LDAP_SUCCESS;
2016 }
2017
2018 static int
2019 nonpresent_callback(
2020         Operation*      op,
2021         SlapReply*      rs )
2022 {
2023         syncinfo_t *si = op->o_callback->sc_private;
2024         Attribute *a;
2025         int count = 0;
2026         struct berval* present_uuid = NULL;
2027         struct nonpresent_entry *np_entry;
2028
2029         if ( rs->sr_type == REP_RESULT ) {
2030                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2031                 si->si_presentlist = NULL;
2032
2033         } else if ( rs->sr_type == REP_SEARCH ) {
2034                 if ( !(si->si_refreshDelete & NP_DELETE_ONE )) {
2035                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2036
2037                         if ( a == NULL ) return 0;
2038
2039                         present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2040                                 syncuuid_cmp );
2041                 }
2042
2043                 if ( present_uuid == NULL ) {
2044                         np_entry = (struct nonpresent_entry *)
2045                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
2046                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
2047                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
2048                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
2049
2050                 } else {
2051                         avl_delete( &si->si_presentlist,
2052                                         &a->a_nvals[0], syncuuid_cmp );
2053                         ch_free( present_uuid->bv_val );
2054                         ch_free( present_uuid );
2055                 }
2056         }
2057         return LDAP_SUCCESS;
2058 }
2059
2060 static int
2061 null_callback(
2062         Operation*      op,
2063         SlapReply*      rs )
2064 {
2065         if ( rs->sr_err != LDAP_SUCCESS &&
2066                 rs->sr_err != LDAP_REFERRAL &&
2067                 rs->sr_err != LDAP_ALREADY_EXISTS &&
2068                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
2069                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
2070         {
2071                 Debug( LDAP_DEBUG_ANY,
2072                         "null_callback : error code 0x%x\n",
2073                         rs->sr_err, 0, 0 );
2074         }
2075         return LDAP_SUCCESS;
2076 }
2077
2078 static struct berval *
2079 slap_uuidstr_from_normalized(
2080         struct berval* uuidstr,
2081         struct berval* normalized,
2082         void *ctx )
2083 {
2084         struct berval *new;
2085         unsigned char nibble;
2086         int i, d = 0;
2087
2088         if ( normalized == NULL ) return NULL;
2089         if ( normalized->bv_len != 16 ) return NULL;
2090
2091         if ( uuidstr ) {
2092                 new = uuidstr;
2093         } else {
2094                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
2095                 if ( new == NULL ) {
2096                         return NULL;
2097                 }
2098         }
2099
2100         new->bv_len = 36;
2101
2102         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
2103                 if ( new != uuidstr ) {
2104                         slap_sl_free( new, ctx );
2105                 }
2106                 return NULL;
2107         }
2108
2109         for ( i = 0; i < 16; i++ ) {
2110                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
2111                         new->bv_val[(i<<1)+d] = '-';
2112                         d += 1;
2113                 }
2114
2115                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
2116                 if ( nibble < 10 ) {
2117                         new->bv_val[(i<<1)+d] = nibble + '0';
2118                 } else {
2119                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
2120                 }
2121
2122                 nibble = (normalized->bv_val[i]) & 0xF;
2123                 if ( nibble < 10 ) {
2124                         new->bv_val[(i<<1)+d+1] = nibble + '0';
2125                 } else {
2126                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
2127                 }
2128         }
2129
2130         new->bv_val[new->bv_len] = '\0';
2131         return new;
2132 }
2133
2134 static int
2135 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
2136 {
2137         const struct berval *uuid1 = v_uuid1;
2138         const struct berval *uuid2 = v_uuid2;
2139         int rc = uuid1->bv_len - uuid2->bv_len;
2140         if ( rc ) return rc;
2141         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
2142 }
2143
2144 static void
2145 avl_ber_bvfree( void *v_bv )
2146 {
2147         struct berval   *bv = (struct berval *)v_bv;
2148
2149         if( v_bv == NULL ) return;
2150         if ( !BER_BVISNULL( bv ) ) {
2151                 ch_free( bv->bv_val );
2152         }
2153         ch_free( (char *) bv );
2154 }
2155
2156 void
2157 syncinfo_free( syncinfo_t *sie )
2158 {
2159         ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
2160         if ( !BER_BVISNULL( &sie->si_provideruri ) ) {
2161                 ch_free( sie->si_provideruri.bv_val );
2162         }
2163
2164         bindconf_free( &sie->si_bindconf );
2165
2166         if ( sie->si_filterstr.bv_val ) {
2167                 ch_free( sie->si_filterstr.bv_val );
2168         }
2169         if ( sie->si_base.bv_val ) {
2170                 ch_free( sie->si_base.bv_val );
2171         }
2172         if ( sie->si_attrs ) {
2173                 int i = 0;
2174                 while ( sie->si_attrs[i] != NULL ) {
2175                         ch_free( sie->si_attrs[i] );
2176                         i++;
2177                 }
2178                 ch_free( sie->si_attrs );
2179         }
2180         if ( sie->si_exattrs ) {
2181                 int i = 0;
2182                 while ( sie->si_exattrs[i] != NULL ) {
2183                         ch_free( sie->si_exattrs[i] );
2184                         i++;
2185                 }
2186                 ch_free( sie->si_exattrs );
2187         }
2188         if ( sie->si_anlist ) {
2189                 int i = 0;
2190                 while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
2191                         ch_free( sie->si_anlist[i].an_name.bv_val );
2192                         i++;
2193                 }
2194                 ch_free( sie->si_anlist );
2195         }
2196         if ( sie->si_exanlist ) {
2197                 int i = 0;
2198                 while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
2199                         ch_free( sie->si_exanlist[i].an_name.bv_val );
2200                         i++;
2201                 }
2202                 ch_free( sie->si_exanlist );
2203         }
2204         if ( sie->si_retryinterval ) {
2205                 ch_free( sie->si_retryinterval );
2206         }
2207         if ( sie->si_retrynum ) {
2208                 ch_free( sie->si_retrynum );
2209         }
2210         if ( sie->si_retrynum_init ) {
2211                 ch_free( sie->si_retrynum_init );
2212         }
2213         slap_sync_cookie_free( &sie->si_syncCookie, 0 );
2214         if ( sie->si_presentlist ) {
2215             avl_free( sie->si_presentlist, avl_ber_bvfree );
2216         }
2217         if ( sie->si_ld ) {
2218                 ldap_ld_free( sie->si_ld, 1, NULL, NULL );
2219         }
2220         while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist )) {
2221                 struct nonpresent_entry* npe;
2222                 npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
2223                 LDAP_LIST_REMOVE( npe, npe_link );
2224                 if ( npe->npe_name ) {
2225                         if ( npe->npe_name->bv_val ) {
2226                                 ch_free( npe->npe_name->bv_val );
2227                         }
2228                         ch_free( npe->npe_name );
2229                 }
2230                 if ( npe->npe_nname ) {
2231                         if ( npe->npe_nname->bv_val ) {
2232                                 ch_free( npe->npe_nname->bv_val );
2233                         }
2234                         ch_free( npe->npe_nname );
2235                 }
2236                 ch_free( npe );
2237         }
2238         ch_free( sie );
2239 }
2240
2241
2242
2243 /* NOTE: used & documented in slapd.conf(5) */
2244 #define IDSTR                   "rid"
2245 #define PROVIDERSTR             "provider"
2246 #define SCHEMASTR               "schemachecking"
2247 #define FILTERSTR               "filter"
2248 #define SEARCHBASESTR           "searchbase"
2249 #define SCOPESTR                "scope"
2250 #define ATTRSONLYSTR            "attrsonly"
2251 #define ATTRSSTR                "attrs"
2252 #define TYPESTR                 "type"
2253 #define INTERVALSTR             "interval"
2254 #define RETRYSTR                "retry"
2255 #define SLIMITSTR               "sizelimit"
2256 #define TLIMITSTR               "timelimit"
2257
2258 /* FIXME: undocumented */
2259 #define OLDAUTHCSTR             "bindprincipal"
2260 #define EXATTRSSTR              "exattrs"
2261 #define MANAGEDSAITSTR          "manageDSAit"
2262
2263 /* FIXME: unused */
2264 #define LASTMODSTR              "lastmod"
2265 #define LMGENSTR                "gen"
2266 #define LMNOSTR                 "no"
2267 #define LMREQSTR                "req"
2268 #define SRVTABSTR               "srvtab"
2269 #define SUFFIXSTR               "suffix"
2270
2271 /* mandatory */
2272 #define GOT_ID                  0x0001
2273 #define GOT_PROVIDER            0x0002
2274
2275 /* check */
2276 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER)
2277
2278 static struct {
2279         struct berval key;
2280         int val;
2281 } scopes[] = {
2282         { BER_BVC("base"), LDAP_SCOPE_BASE },
2283         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
2284         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
2285 #ifdef LDAP_SCOPE_SUBORDINATE
2286         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
2287         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
2288 #endif
2289         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
2290         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
2291         { BER_BVNULL, 0 }
2292 };
2293
2294 static int
2295 parse_syncrepl_line(
2296         char            **cargv,
2297         int             cargc,
2298         syncinfo_t      *si
2299 )
2300 {
2301         int     gots = 0;
2302         int     i;
2303         char    *val;
2304
2305         for ( i = 1; i < cargc; i++ ) {
2306                 if ( !strncasecmp( cargv[ i ], IDSTR "=",
2307                                         STRLENOF( IDSTR "=" ) ) )
2308                 {
2309                         int tmp;
2310                         /* '\0' string terminator accounts for '=' */
2311                         val = cargv[ i ] + STRLENOF( IDSTR "=" );
2312                         tmp= atoi( val );
2313                         if ( tmp >= 1000 || tmp < 0 ) {
2314                                 fprintf( stderr, "Error: parse_syncrepl_line: "
2315                                          "syncrepl id %d is out of range [0..999]\n", tmp );
2316                                 return -1;
2317                         }
2318                         si->si_rid = tmp;
2319                         gots |= GOT_ID;
2320                 } else if ( !strncasecmp( cargv[ i ], PROVIDERSTR "=",
2321                                         STRLENOF( PROVIDERSTR "=" ) ) )
2322                 {
2323                         val = cargv[ i ] + STRLENOF( PROVIDERSTR "=" );
2324                         ber_str2bv( val, 0, 1, &si->si_provideruri );
2325                         gots |= GOT_PROVIDER;
2326                 } else if ( !strncasecmp( cargv[ i ], SCHEMASTR "=",
2327                                         STRLENOF( SCHEMASTR "=" ) ) )
2328                 {
2329                         val = cargv[ i ] + STRLENOF( SCHEMASTR "=" );
2330                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) )) {
2331                                 si->si_schemachecking = 1;
2332                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
2333                                 si->si_schemachecking = 0;
2334                         } else {
2335                                 si->si_schemachecking = 1;
2336                         }
2337                 } else if ( !strncasecmp( cargv[ i ], FILTERSTR "=",
2338                                         STRLENOF( FILTERSTR "=" ) ) )
2339                 {
2340                         val = cargv[ i ] + STRLENOF( FILTERSTR "=" );
2341                         ber_str2bv( val, 0, 1, &si->si_filterstr );
2342                 } else if ( !strncasecmp( cargv[ i ], SEARCHBASESTR "=",
2343                                         STRLENOF( SEARCHBASESTR "=" ) ) )
2344                 {
2345                         struct berval   bv;
2346                         int             rc;
2347
2348                         val = cargv[ i ] + STRLENOF( SEARCHBASESTR "=" );
2349                         if ( si->si_base.bv_val ) {
2350                                 ch_free( si->si_base.bv_val );
2351                         }
2352                         ber_str2bv( val, 0, 0, &bv );
2353                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
2354                         if ( rc != LDAP_SUCCESS ) {
2355                                 fprintf( stderr, "Invalid base DN \"%s\": %d (%s)\n",
2356                                         val, rc, ldap_err2string( rc ) );
2357                                 return -1;
2358                         }
2359                 } else if ( !strncasecmp( cargv[ i ], SCOPESTR "=",
2360                                         STRLENOF( SCOPESTR "=" ) ) )
2361                 {
2362                         int j;
2363                         val = cargv[ i ] + STRLENOF( SCOPESTR "=" );
2364                         for ( j=0; !BER_BVISNULL(&scopes[j].key); j++ ) {
2365                                 if (!strcasecmp( val, scopes[j].key.bv_val )) {
2366                                         si->si_scope = scopes[j].val;
2367                                         break;
2368                                 }
2369                         }
2370                         if ( BER_BVISNULL(&scopes[j].key) ) {
2371                                 fprintf( stderr, "Error: parse_syncrepl_line: "
2372                                         "unknown scope \"%s\"\n", val);
2373                                 return -1;
2374                         }
2375                 } else if ( !strncasecmp( cargv[ i ], ATTRSONLYSTR "=",
2376                                         STRLENOF( ATTRSONLYSTR "=" ) ) )
2377                 {
2378                         si->si_attrsonly = 1;
2379                 } else if ( !strncasecmp( cargv[ i ], ATTRSSTR "=",
2380                                         STRLENOF( ATTRSSTR "=" ) ) )
2381                 {
2382                         val = cargv[ i ] + STRLENOF( ATTRSSTR "=" );
2383                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
2384                                 char *attr_fname;
2385                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
2386                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
2387                                 if ( si->si_anlist == NULL ) {
2388                                         ch_free( attr_fname );
2389                                         return -1;
2390                                 }
2391                                 si->si_anfile = attr_fname;
2392                         } else {
2393                                 char *str, *s, *next;
2394                                 char delimstr[] = " ,\t";
2395                                 str = ch_strdup( val );
2396                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
2397                                                 s != NULL;
2398                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
2399                                 {
2400                                         if ( strlen(s) == 1 && *s == '*' ) {
2401                                                 si->si_allattrs = 1;
2402                                                 *(val + ( s - str )) = delimstr[0];
2403                                         }
2404                                         if ( strlen(s) == 1 && *s == '+' ) {
2405                                                 si->si_allopattrs = 1;
2406                                                 *(val + ( s - str )) = delimstr[0];
2407                                         }
2408                                 }
2409                                 ch_free( str );
2410                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
2411                                 if ( si->si_anlist == NULL ) {
2412                                         return -1;
2413                                 }
2414                         }
2415                 } else if ( !strncasecmp( cargv[ i ], EXATTRSSTR "=",
2416                                         STRLENOF( EXATTRSSTR "=" ) ) )
2417                 {
2418                         val = cargv[ i ] + STRLENOF( EXATTRSSTR "=" );
2419                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") )) {
2420                                 char *attr_fname;
2421                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
2422                                 si->si_exanlist = file2anlist(
2423                                                                         si->si_exanlist, attr_fname, " ,\t" );
2424                                 if ( si->si_exanlist == NULL ) {
2425                                         ch_free( attr_fname );
2426                                         return -1;
2427                                 }
2428                                 ch_free( attr_fname );
2429                         } else {
2430                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
2431                                 if ( si->si_exanlist == NULL ) {
2432                                         return -1;
2433                                 }
2434                         }
2435                 } else if ( !strncasecmp( cargv[ i ], TYPESTR "=",
2436                                         STRLENOF( TYPESTR "=" ) ) )
2437                 {
2438                         val = cargv[ i ] + STRLENOF( TYPESTR "=" );
2439                         if ( !strncasecmp( val, "refreshOnly",
2440                                                 STRLENOF("refreshOnly") ))
2441                         {
2442                                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
2443                         } else if ( !strncasecmp( val, "refreshAndPersist",
2444                                                 STRLENOF("refreshAndPersist") ))
2445                         {
2446                                 si->si_type = LDAP_SYNC_REFRESH_AND_PERSIST;
2447                                 si->si_interval = 60;
2448                         } else {
2449                                 fprintf( stderr, "Error: parse_syncrepl_line: "
2450                                         "unknown sync type \"%s\"\n", val);
2451                                 return -1;
2452                         }
2453                 } else if ( !strncasecmp( cargv[ i ], INTERVALSTR "=",
2454                                         STRLENOF( INTERVALSTR "=" ) ) )
2455                 {
2456                         val = cargv[ i ] + STRLENOF( INTERVALSTR "=" );
2457                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
2458                                 si->si_interval = 0;
2459                         } else {
2460                                 char *hstr;
2461                                 char *mstr;
2462                                 char *dstr;
2463                                 char *sstr;
2464                                 int dd, hh, mm, ss;
2465                                 dstr = val;
2466                                 hstr = strchr( dstr, ':' );
2467                                 if ( hstr == NULL ) {
2468                                         fprintf( stderr, "Error: parse_syncrepl_line: "
2469                                                 "invalid interval \"%s\"\n", val );
2470                                         return -1;
2471                                 }
2472                                 *hstr++ = '\0';
2473                                 mstr = strchr( hstr, ':' );
2474                                 if ( mstr == NULL ) {
2475                                         fprintf( stderr, "Error: parse_syncrepl_line: "
2476                                                 "invalid interval \"%s\"\n", val );
2477                                         return -1;
2478                                 }
2479                                 *mstr++ = '\0';
2480                                 sstr = strchr( mstr, ':' );
2481                                 if ( sstr == NULL ) {
2482                                         fprintf( stderr, "Error: parse_syncrepl_line: "
2483                                                 "invalid interval \"%s\"\n", val );
2484                                         return -1;
2485                                 }
2486                                 *sstr++ = '\0';
2487
2488                                 dd = atoi( dstr );
2489                                 hh = atoi( hstr );
2490                                 mm = atoi( mstr );
2491                                 ss = atoi( sstr );
2492                                 if (( hh > 24 ) || ( hh < 0 ) ||
2493                                         ( mm > 60 ) || ( mm < 0 ) ||
2494                                         ( ss > 60 ) || ( ss < 0 ) || ( dd < 0 )) {
2495                                         fprintf( stderr, "Error: parse_syncrepl_line: "
2496                                                 "invalid interval \"%s\"\n", val );
2497                                         return -1;
2498                                 }
2499                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
2500                         }
2501                         if ( si->si_interval < 0 ) {
2502                                 fprintf( stderr, "Error: parse_syncrepl_line: "
2503                                         "invalid interval \"%ld\"\n",
2504                                         (long) si->si_interval);
2505                                 return -1;
2506                         }
2507                 } else if ( !strncasecmp( cargv[ i ], RETRYSTR "=",
2508                                         STRLENOF( RETRYSTR "=" ) ) )
2509                 {
2510                         char **retry_list;
2511                         int j, k, n;
2512
2513                         val = cargv[ i ] + STRLENOF( RETRYSTR "=" );
2514                         retry_list = (char **) ch_calloc( 1, sizeof( char * ));
2515                         retry_list[0] = NULL;
2516
2517                         slap_str2clist( &retry_list, val, " ,\t" );
2518
2519                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
2520                         n = k / 2;
2521                         if ( k % 2 ) {
2522                                 fprintf( stderr,
2523                                                 "Error: incomplete syncrepl retry list\n" );
2524                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
2525                                         ch_free( retry_list[k] );
2526                                 }
2527                                 ch_free( retry_list );
2528                                 exit( EXIT_FAILURE );
2529                         }
2530                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ));
2531                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ));
2532                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ));
2533                         for ( j = 0; j < n; j++ ) {
2534                                 si->si_retryinterval[j] = atoi( retry_list[j*2] );
2535                                 if ( *retry_list[j*2+1] == '+' ) {
2536                                         si->si_retrynum_init[j] = -1;
2537                                         si->si_retrynum[j] = -1;
2538                                         j++;
2539                                         break;
2540                                 } else {
2541                                         si->si_retrynum_init[j] = atoi( retry_list[j*2+1] );
2542                                         si->si_retrynum[j] = atoi( retry_list[j*2+1] );
2543                                 }
2544                         }
2545                         si->si_retrynum_init[j] = -2;
2546                         si->si_retrynum[j] = -2;
2547                         si->si_retryinterval[j] = 0;
2548
2549                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
2550                                 ch_free( retry_list[k] );
2551                         }
2552                         ch_free( retry_list );
2553                 } else if ( !strncasecmp( cargv[ i ], MANAGEDSAITSTR "=",
2554                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
2555                 {
2556                         val = cargv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
2557                         si->si_manageDSAit = atoi( val );
2558                 } else if ( !strncasecmp( cargv[ i ], SLIMITSTR "=",
2559                                         STRLENOF( SLIMITSTR "=") ) )
2560                 {
2561                         val = cargv[ i ] + STRLENOF( SLIMITSTR "=" );
2562                         si->si_slimit = atoi( val );
2563                 } else if ( !strncasecmp( cargv[ i ], TLIMITSTR "=",
2564                                         STRLENOF( TLIMITSTR "=" ) ) )
2565                 {
2566                         val = cargv[ i ] + STRLENOF( TLIMITSTR "=" );
2567                         si->si_tlimit = atoi( val );
2568                 } else if ( bindconf_parse( cargv[i], &si->si_bindconf )) {
2569                         fprintf( stderr, "Error: parse_syncrepl_line: "
2570                                 "unknown keyword \"%s\"\n", cargv[ i ] );
2571                         return -1;
2572                 }
2573         }
2574
2575         if ( gots != GOT_ALL ) {
2576                 fprintf( stderr,
2577                         "Error: Malformed \"syncrepl\" line in slapd config file" );
2578                 return -1;
2579         }
2580
2581         return 0;
2582 }
2583
2584 static int
2585 add_syncrepl(
2586         Backend *be,
2587         char    **cargv,
2588         int     cargc
2589 )
2590 {
2591         syncinfo_t *si;
2592         int     rc = 0;
2593
2594         if ( !( be->be_search && be->be_add && be->be_modify && be->be_delete )) {
2595                 Debug( LDAP_DEBUG_ANY, "database %s does not support operations "
2596                         "required for syncrepl\n", be->be_type, 0, 0 );
2597                 return 1;
2598         }
2599         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
2600
2601         if ( si == NULL ) {
2602                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
2603                 return 1;
2604         }
2605
2606         si->si_bindconf.sb_tls = SB_TLS_OFF;
2607         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
2608         si->si_schemachecking = 0;
2609         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
2610                 &si->si_filterstr );
2611         si->si_base.bv_val = NULL;
2612         si->si_scope = LDAP_SCOPE_SUBTREE;
2613         si->si_attrsonly = 0;
2614         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ));
2615         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ));
2616         si->si_attrs = NULL;
2617         si->si_allattrs = 0;
2618         si->si_allopattrs = 0;
2619         si->si_exattrs = NULL;
2620         si->si_type = LDAP_SYNC_REFRESH_ONLY;
2621         si->si_interval = 86400;
2622         si->si_retryinterval = NULL;
2623         si->si_retrynum_init = NULL;
2624         si->si_retrynum = NULL;
2625         si->si_manageDSAit = 0;
2626         si->si_tlimit = 0;
2627         si->si_slimit = 0;
2628
2629         si->si_presentlist = NULL;
2630         LDAP_LIST_INIT( &si->si_nonpresentlist );
2631         ldap_pvt_thread_mutex_init( &si->si_mutex );
2632
2633         rc = parse_syncrepl_line( cargv, cargc, si );
2634
2635         if ( rc == 0 ) {
2636                 si->si_be = be;
2637                 init_syncrepl( si );
2638                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq, si->si_interval,
2639                         do_syncrepl, si, "do_syncrepl", be->be_suffix[0].bv_val );
2640                 if ( !si->si_re )
2641                         rc = -1;
2642         }
2643         if ( rc < 0 ) {
2644                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
2645                 syncinfo_free( si );
2646                 return 1;
2647         } else {
2648                 Debug( LDAP_DEBUG_CONFIG,
2649                         "Config: ** successfully added syncrepl \"%s\"\n",
2650                         BER_BVISNULL( &si->si_provideruri ) ?
2651                         "(null)" : si->si_provideruri.bv_val, 0, 0 );
2652                 if ( !si->si_schemachecking ) {
2653                         SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
2654                 }
2655                 be->be_syncinfo = si;
2656                 return 0;
2657         }
2658 }
2659
2660 static void
2661 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
2662 {
2663         struct berval bc;
2664         char buf[BUFSIZ*2], *ptr;
2665         int i;
2666
2667         bindconf_unparse( &si->si_bindconf, &bc );
2668         ptr = buf;
2669         ptr += sprintf( ptr, IDSTR "=%03ld " PROVIDERSTR "=%s",
2670                 si->si_rid, si->si_provideruri.bv_val );
2671         if ( !BER_BVISNULL( &bc )) {
2672                 ptr = lutil_strcopy( ptr, bc.bv_val );
2673                 free( bc.bv_val );
2674         }
2675         if ( !BER_BVISEMPTY( &si->si_filterstr )) {
2676                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
2677                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
2678                 *ptr++ = '"';
2679         }
2680         if ( !BER_BVISNULL( &si->si_base )) {
2681                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
2682                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
2683                 *ptr++ = '"';
2684         }
2685         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
2686                 if ( si->si_scope == scopes[i].val ) {
2687                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
2688                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
2689                         break;
2690                 }
2691         }
2692         if ( si->si_attrsonly ) {
2693                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR "=yes" );
2694         }
2695         if ( si->si_anfile ) {
2696                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:" );
2697                 ptr = lutil_strcopy( ptr, si->si_anfile );
2698         } else if ( si->si_allattrs || si->si_allopattrs ||
2699                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) )) {
2700                 char *old;
2701                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
2702                 old = ptr;
2703                 ptr = anlist_unparse( si->si_anlist, ptr );
2704                 if ( si->si_allattrs ) {
2705                         if ( old != ptr ) *ptr++ = ',';
2706                         *ptr++ = '*';
2707                 }
2708                 if ( si->si_allopattrs ) {
2709                         if ( old != ptr ) *ptr++ = ',';
2710                         *ptr++ = '+';
2711                 }
2712                 *ptr++ = '"';
2713         }
2714         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
2715                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
2716                 ptr = anlist_unparse( si->si_exanlist, ptr );
2717         }
2718         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
2719         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
2720
2721         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
2722         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
2723                 "refreshAndPersist" : "refreshOnly" );
2724
2725         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
2726                 int dd, hh, mm, ss;
2727
2728                 dd = si->si_interval;
2729                 ss = dd % 60;
2730                 dd /= 60;
2731                 mm = dd % 60;
2732                 dd /= 60;
2733                 hh = dd % 24;
2734                 dd /= 24;
2735                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
2736                 ptr += sprintf( ptr, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
2737         } else if ( si->si_retryinterval ) {
2738                 int space=0;
2739                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
2740                 for (i=0; si->si_retryinterval[i]; i++) {
2741                         if ( space ) *ptr++ = ' ';
2742                         space = 1;
2743                         ptr += sprintf( ptr, "%ld ", (long) si->si_retryinterval[i] );
2744                         if ( si->si_retrynum_init[i] == -1 )
2745                                 *ptr++ = '+';
2746                         else
2747                                 ptr += sprintf( ptr, "%d", si->si_retrynum_init[i] );
2748                 }
2749                 *ptr++ = '"';
2750         }
2751
2752         if ( si->si_slimit ) {
2753                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
2754                 ptr += sprintf( ptr, "%d", si->si_slimit );
2755         }
2756
2757         if ( si->si_tlimit ) {
2758                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
2759                 ptr += sprintf( ptr, "%d", si->si_tlimit );
2760         }
2761         bc.bv_len = ptr - buf;
2762         bc.bv_val = buf;
2763         ber_dupbv( bv, &bc );
2764 }
2765
2766 int
2767 syncrepl_config(ConfigArgs *c) {
2768         if (c->op == SLAP_CONFIG_EMIT) {
2769                 if ( c->be->be_syncinfo ) {
2770                         struct berval bv;
2771                         syncrepl_unparse( c->be->be_syncinfo, &bv );
2772                         ber_bvarray_add( &c->rvalue_vals, &bv );
2773                         return 0;
2774                 }
2775                 return 1;
2776         } else if ( c->op == LDAP_MOD_DELETE ) {
2777                 struct re_s *re;
2778
2779                 if ( c->be->be_syncinfo ) {
2780                         re = c->be->be_syncinfo->si_re;
2781                         if ( re ) {
2782                                 if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
2783                                         ldap_pvt_runqueue_stoptask( &slapd_rq, re );
2784                                 ldap_pvt_runqueue_remove( &slapd_rq, re );
2785                         }
2786                         syncinfo_free( c->be->be_syncinfo );
2787                         c->be->be_syncinfo = NULL;
2788                 }
2789                 SLAP_DBFLAGS(c->be) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
2790                 return 0;
2791         }
2792         if(SLAP_SHADOW(c->be)) {
2793                 Debug(LDAP_DEBUG_ANY, "%s: "
2794                         "syncrepl: database already shadowed.\n",
2795                         c->log, 0, 0);
2796                 return(1);
2797         } else if(add_syncrepl(c->be, c->argv, c->argc)) {
2798                 return(1);
2799         }
2800         SLAP_DBFLAGS(c->be) |= (SLAP_DBFLAG_SHADOW | SLAP_DBFLAG_SYNC_SHADOW);
2801         return(0);
2802 }