git.sur5r.net Git - openldap/blob - servers/slapd/syncrepl.c

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "config.h"
  31
  32 #include "ldap_rq.h"
  33
  34 struct nonpresent_entry {
  35         struct berval *npe_name;
  36         struct berval *npe_nname;
  37         LDAP_LIST_ENTRY(nonpresent_entry) npe_link;
  38 };
  39
  40 typedef struct cookie_state {
  41         ldap_pvt_thread_mutex_t cs_mutex;
  42         int     cs_num;
  43         int cs_age;
  44         struct berval *cs_vals;
  45         int *cs_sids;
  46 } cookie_state;
  47
  48 #define SYNCDATA_DEFAULT        0       /* entries are plain LDAP entries */
  49 #define SYNCDATA_ACCESSLOG      1       /* entries are accesslog format */
  50 #define SYNCDATA_CHANGELOG      2       /* entries are changelog format */
  51
  52 #define SYNCLOG_LOGGING         0       /* doing a log-based update */
  53 #define SYNCLOG_FALLBACK        1       /* doing a full refresh */
  54
  55 #define RETRYNUM_FOREVER        (-1)    /* retry forever */
  56 #define RETRYNUM_TAIL           (-2)    /* end of retrynum array */
  57 #define RETRYNUM_VALID(n)       ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
  58 #define RETRYNUM_FINITE(n)      ((n) > RETRYNUM_FOREVER)        /* not forever */
  59
  60 typedef struct syncinfo_s {
  61         struct syncinfo_s       *si_next;
  62         BackendDB               *si_be;
  63         BackendDB               *si_wbe;
  64         struct re_s             *si_re;
  65         int                     si_rid;
  66         char                    si_ridtxt[ STRLENOF("rid=4095") + 1 ];
  67         slap_bindconf           si_bindconf;
  68         struct berval           si_base;
  69         struct berval           si_logbase;
  70         struct berval           si_filterstr;
  71         struct berval           si_logfilterstr;
  72         int                     si_scope;
  73         int                     si_attrsonly;
  74         char                    *si_anfile;
  75         AttributeName           *si_anlist;
  76         AttributeName           *si_exanlist;
  77         char                    **si_attrs;
  78         char                    **si_exattrs;
  79         int                     si_allattrs;
  80         int                     si_allopattrs;
  81         int                     si_schemachecking;
  82         int                     si_type;        /* the active type */
  83         int                     si_ctype;       /* the configured type */
  84         time_t                  si_interval;
  85         time_t                  *si_retryinterval;
  86         int                     *si_retrynum_init;
  87         int                     *si_retrynum;
  88         struct sync_cookie      si_syncCookie;
  89         cookie_state            *si_cookieState;
  90         int                     si_cookieAge;
  91         int                     si_manageDSAit;
  92         int                     si_slimit;
  93         int                     si_tlimit;
  94         int                     si_refreshDelete;
  95         int                     si_refreshPresent;
  96         int                     si_syncdata;
  97         int                     si_logstate;
  98         int                     si_conn_setup;
  99         Avlnode                 *si_presentlist;
 100         LDAP                    *si_ld;
 101         LDAP_LIST_HEAD(np, nonpresent_entry)    si_nonpresentlist;
 102         ldap_pvt_thread_mutex_t si_mutex;
 103 } syncinfo_t;
 104
 105 static int syncuuid_cmp( const void *, const void * );
 106 static void avl_ber_bvfree( void * );
 107 static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 108 static int syncrepl_message_to_op(
 109                                         syncinfo_t *, Operation *, LDAPMessage * );
 110 static int syncrepl_message_to_entry(
 111                                         syncinfo_t *, Operation *, LDAPMessage *,
 112                                         Modifications **, Entry **, int );
 113 static int syncrepl_entry(
 114                                         syncinfo_t *, Operation*, Entry*,
 115                                         Modifications**,int, struct berval* );
 116 static int syncrepl_updateCookie(
 117                                         syncinfo_t *, Operation *, struct berval *,
 118                                         struct sync_cookie * );
 119 static struct berval * slap_uuidstr_from_normalized(
 120                                         struct berval *, struct berval *, void * );
 121
 122 /* callback functions */
 123 static int dn_callback( Operation *, SlapReply * );
 124 static int nonpresent_callback( Operation *, SlapReply * );
 125 static int null_callback( Operation *, SlapReply * );
 126
 127 static AttributeDescription *sync_descs[4];
 128
 129 static const char *
 130 syncrepl_state2str( int state )
 131 {
 132         switch ( state ) {
 133         case LDAP_SYNC_PRESENT:
 134                 return "PRESENT";
 135
 136         case LDAP_SYNC_ADD:
 137                 return "ADD";
 138
 139         case LDAP_SYNC_MODIFY:
 140                 return "MODIFY";
 141
 142         case LDAP_SYNC_DELETE:
 143                 return "DELETE";
 144         }
 145
 146         return "UNKNOWN";
 147 }
 148
 149 static void
 150 init_syncrepl(syncinfo_t *si)
 151 {
 152         int i, j, k, l, n;
 153         char **attrs, **exattrs;
 154
 155         if ( !sync_descs[0] ) {
 156                 sync_descs[0] = slap_schema.si_ad_objectClass;
 157                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
 158                 sync_descs[2] = slap_schema.si_ad_entryCSN;
 159                 sync_descs[3] = NULL;
 160         }
 161
 162         if ( si->si_allattrs && si->si_allopattrs )
 163                 attrs = NULL;
 164         else
 165                 attrs = anlist2attrs( si->si_anlist );
 166
 167         if ( attrs ) {
 168                 if ( si->si_allattrs ) {
 169                         i = 0;
 170                         while ( attrs[i] ) {
 171                                 if ( !is_at_operational( at_find( attrs[i] ) ) ) {
 172                                         for ( j = i; attrs[j] != NULL; j++ ) {
 173                                                 if ( j == i )
 174                                                         ch_free( attrs[i] );
 175                                                 attrs[j] = attrs[j+1];
 176                                         }
 177                                 } else {
 178                                         i++;
 179                                 }
 180                         }
 181                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 182                         attrs[i] = ch_strdup("*");
 183                         attrs[i + 1] = NULL;
 184
 185                 } else if ( si->si_allopattrs ) {
 186                         i = 0;
 187                         while ( attrs[i] ) {
 188                                 if ( is_at_operational( at_find( attrs[i] ) ) ) {
 189                                         for ( j = i; attrs[j] != NULL; j++ ) {
 190                                                 if ( j == i )
 191                                                         ch_free( attrs[i] );
 192                                                 attrs[j] = attrs[j+1];
 193                                         }
 194                                 } else {
 195                                         i++;
 196                                 }
 197                         }
 198                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 199                         attrs[i] = ch_strdup("+");
 200                         attrs[i + 1] = NULL;
 201                 }
 202
 203                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 204                         j = 0;
 205                         while ( attrs[j] ) {
 206                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 207                                         for ( k = j; attrs[k] != NULL; k++ ) {
 208                                                 if ( k == j )
 209                                                         ch_free( attrs[k] );
 210                                                 attrs[k] = attrs[k+1];
 211                                         }
 212                                 } else {
 213                                         j++;
 214                                 }
 215                         }
 216                 }
 217
 218                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 219
 220                 if ( si->si_allopattrs ) {
 221                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ) );
 222                 } else {
 223                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ) );
 224                 }
 225
 226                 /* Add Attributes */
 227                 if ( si->si_allopattrs ) {
 228                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 229                 } else {
 230                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 231                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 232                         }
 233                 }
 234                 attrs[ n ] = NULL;
 235
 236         } else {
 237
 238                 i = 0;
 239                 if ( si->si_allattrs == si->si_allopattrs ) {
 240                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 241                         attrs[i++] = ch_strdup( "*" );
 242                         attrs[i++] = ch_strdup( "+" );
 243                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 244                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 245                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 246                         attrs[i++] = ch_strdup( "*" );
 247                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 248                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 249                         }
 250                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 251                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 252                         attrs[i++] = ch_strdup( "+" );
 253                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 254                 }
 255                 attrs[i] = NULL;
 256         }
 257
 258         si->si_attrs = attrs;
 259
 260         exattrs = anlist2attrs( si->si_exanlist );
 261
 262         if ( exattrs ) {
 263                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 264
 265                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 266                         j = 0;
 267                         while ( exattrs[j] != NULL ) {
 268                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val ) ) {
 269                                         ch_free( exattrs[j] );
 270                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 271                                                 exattrs[k] = exattrs[k+1];
 272                                         }
 273                                 } else {
 274                                         j++;
 275                                 }
 276                         }
 277                 }
 278
 279                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 280                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 281                                 ObjectClass     *oc;
 282                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 283                                         k = 0;
 284                                         while ( oc->soc_required[k] ) {
 285                                                 if ( !strcmp( exattrs[i],
 286                                                          oc->soc_required[k]->sat_cname.bv_val ) ) {
 287                                                         ch_free( exattrs[i] );
 288                                                         for ( l = i; exattrs[l]; l++ ) {
 289                                                                 exattrs[l] = exattrs[l+1];
 290                                                         }
 291                                                 } else {
 292                                                         k++;
 293                                                 }
 294                                         }
 295                                 }
 296                         }
 297                 }
 298
 299                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 300
 301                 if ( i != n )
 302                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *) );
 303         }
 304
 305         si->si_exattrs = exattrs;
 306 }
 307
 308 typedef struct logschema {
 309         struct berval ls_dn;
 310         struct berval ls_req;
 311         struct berval ls_mod;
 312         struct berval ls_newRdn;
 313         struct berval ls_delRdn;
 314         struct berval ls_newSup;
 315 } logschema;
 316
 317 static logschema changelog_sc = {
 318         BER_BVC("targetDN"),
 319         BER_BVC("changeType"),
 320         BER_BVC("changes"),
 321         BER_BVC("newRDN"),
 322         BER_BVC("deleteOldRDN"),
 323         BER_BVC("newSuperior")
 324 };
 325
 326 static logschema accesslog_sc = {
 327         BER_BVC("reqDN"),
 328         BER_BVC("reqType"),
 329         BER_BVC("reqMod"),
 330         BER_BVC("reqNewRDN"),
 331         BER_BVC("reqDeleteOldRDN"),
 332         BER_BVC("reqNewSuperior")
 333 };
 334
 335 static int
 336 ldap_sync_search(
 337         syncinfo_t *si,
 338         void *ctx )
 339 {
 340         BerElementBuffer berbuf;
 341         BerElement *ber = (BerElement *)&berbuf;
 342         LDAPControl c[2], *ctrls[3];
 343         ber_int_t       msgid;
 344         int rc;
 345         int rhint;
 346         char *base;
 347         char **attrs, *lattrs[8];
 348         char *filter;
 349         int attrsonly;
 350         int scope;
 351
 352         /* setup LDAP SYNC control */
 353         ber_init2( ber, NULL, LBER_USE_DER );
 354         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 355
 356         /* If we're using a log but we have no state, then fallback to
 357          * normal mode for a full refresh.
 358          */
 359         if ( si->si_syncdata && !si->si_syncCookie.numcsns ) {
 360                 si->si_logstate = SYNCLOG_FALLBACK;
 361         }
 362
 363         /* Use the log parameters if we're in log mode */
 364         if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 365                 logschema *ls;
 366                 if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
 367                         ls = &accesslog_sc;
 368                 else
 369                         ls = &changelog_sc;
 370                 lattrs[0] = ls->ls_dn.bv_val;
 371                 lattrs[1] = ls->ls_req.bv_val;
 372                 lattrs[2] = ls->ls_mod.bv_val;
 373                 lattrs[3] = ls->ls_newRdn.bv_val;
 374                 lattrs[4] = ls->ls_delRdn.bv_val;
 375                 lattrs[5] = ls->ls_newSup.bv_val;
 376                 lattrs[6] = slap_schema.si_ad_entryCSN->ad_cname.bv_val;
 377                 lattrs[7] = NULL;
 378
 379                 rhint = 0;
 380                 base = si->si_logbase.bv_val;
 381                 filter = si->si_logfilterstr.bv_val;
 382                 attrs = lattrs;
 383                 attrsonly = 0;
 384                 scope = LDAP_SCOPE_SUBTREE;
 385         } else {
 386                 rhint = 1;
 387                 base = si->si_base.bv_val;
 388                 filter = si->si_filterstr.bv_val;
 389                 attrs = si->si_attrs;
 390                 attrsonly = si->si_attrsonly;
 391                 scope = si->si_scope;
 392         }
 393         if ( si->si_syncdata && si->si_logstate == SYNCLOG_FALLBACK ) {
 394                 si->si_type = LDAP_SYNC_REFRESH_ONLY;
 395         } else {
 396                 si->si_type = si->si_ctype;
 397         }
 398
 399         if ( !BER_BVISNULL( &si->si_syncCookie.octet_str ) )
 400         {
 401                 ber_printf( ber, "{eOb}",
 402                         abs(si->si_type), &si->si_syncCookie.octet_str, rhint );
 403         } else {
 404                 ber_printf( ber, "{eb}",
 405                         abs(si->si_type), rhint );
 406         }
 407
 408         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 ) ) == LBER_ERROR ) {
 409                 ber_free_buf( ber );
 410                 return rc;
 411         }
 412
 413         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 414         c[0].ldctl_iscritical = si->si_type < 0;
 415         ctrls[0] = &c[0];
 416
 417         if ( !BER_BVISNULL( &si->si_bindconf.sb_authzId ) ) {
 418                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 419                 c[1].ldctl_value = si->si_bindconf.sb_authzId;
 420                 c[1].ldctl_iscritical = 1;
 421                 ctrls[1] = &c[1];
 422                 ctrls[2] = NULL;
 423         } else {
 424                 ctrls[1] = NULL;
 425         }
 426
 427         rc = ldap_search_ext( si->si_ld, base, scope, filter, attrs, attrsonly,
 428                 ctrls, NULL, NULL, si->si_slimit, &msgid );
 429         ber_free_buf( ber );
 430         return rc;
 431 }
 432
 433 static int
 434 do_syncrep1(
 435         Operation *op,
 436         syncinfo_t *si )
 437 {
 438         int     rc;
 439         int cmdline_cookie_found = 0;
 440
 441         struct sync_cookie      *sc = NULL;
 442 #ifdef HAVE_TLS
 443         void    *ssl;
 444 #endif
 445
 446         rc = slap_client_connect( &si->si_ld, &si->si_bindconf );
 447         if ( rc != LDAP_SUCCESS ) {
 448                 goto done;
 449         }
 450         op->o_protocol = LDAP_VERSION3;
 451
 452         /* Set SSF to strongest of TLS, SASL SSFs */
 453         op->o_sasl_ssf = 0;
 454         op->o_tls_ssf = 0;
 455         op->o_transport_ssf = 0;
 456 #ifdef HAVE_TLS
 457         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 458                 == LDAP_SUCCESS && ssl != NULL )
 459         {
 460                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 461         }
 462 #endif /* HAVE_TLS */
 463         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 464         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 465                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 466
 467         ldap_set_option( si->si_ld, LDAP_OPT_TIMELIMIT, &si->si_tlimit );
 468
 469         /* We've just started up, or the remote server hasn't sent us
 470          * any meaningful state.
 471          */
 472         if ( BER_BVISNULL( &si->si_syncCookie.octet_str ) ) {
 473                 int i;
 474
 475                 si->si_syncCookie.rid = si->si_rid;
 476                 si->si_syncCookie.sid = SLAP_SINGLE_SHADOW( si->si_be ) ? -1 :
 477                         slap_serverID;
 478
 479                 LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 480                         if ( si->si_rid == sc->rid ) {
 481                                 cmdline_cookie_found = 1;
 482                                 break;
 483                         }
 484                 }
 485
 486                 if ( cmdline_cookie_found ) {
 487                         /* cookie is supplied in the command line */
 488
 489                         LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 490
 491                         /* ctxcsn wasn't parsed yet, do it now */
 492                         slap_parse_sync_cookie( sc, op->o_tmpmemctx );
 493                         slap_sync_cookie_free( &si->si_syncCookie, 0 );
 494                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 495                         slap_sync_cookie_free( sc, 1 );
 496                 } else {
 497                         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 498                         if ( !si->si_cookieState->cs_num ) {
 499                                 /* get contextCSN shadow replica from database */
 500                                 BerVarray csn = NULL;
 501                                 void *ctx = op->o_tmpmemctx;
 502
 503                                 op->o_req_ndn = op->o_bd->be_nsuffix[0];
 504                                 op->o_req_dn = op->o_req_ndn;
 505
 506                                 /* try to read stored contextCSN */
 507                                 op->o_tmpmemctx = NULL;
 508                                 backend_attribute( op, NULL, &op->o_req_ndn,
 509                                         slap_schema.si_ad_contextCSN, &csn, ACL_READ );
 510                                 op->o_tmpmemctx = ctx;
 511                                 if ( csn ) {
 512                                         si->si_cookieState->cs_vals = csn;
 513                                         for (i=0; !BER_BVISNULL( &csn[i] ); i++);
 514                                         si->si_cookieState->cs_num = i;
 515                                         si->si_cookieState->cs_sids = slap_parse_csn_sids( csn, i, NULL );
 516                                 }
 517                         }
 518                         if ( si->si_cookieState->cs_num ) {
 519                                 ber_bvarray_free( si->si_syncCookie.ctxcsn );
 520                                 if ( ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 521                                         si->si_cookieState->cs_vals, NULL )) {
 522                                         rc = LDAP_NO_MEMORY;
 523                                         goto done;
 524                                 }
 525                                 si->si_syncCookie.numcsns = si->si_cookieState->cs_num;
 526                                 si->si_syncCookie.sids = ch_malloc( si->si_cookieState->cs_num *
 527                                         sizeof(int) );
 528                                 for ( i=0; i<si->si_syncCookie.numcsns; i++ )
 529                                         si->si_syncCookie.sids[i] = si->si_cookieState->cs_sids[i];
 530                         }
 531                         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 532                 }
 533
 534                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 535                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 536                         si->si_syncCookie.sid );
 537         } else {
 538                 AttributeName at[2];
 539                 Attribute a = {0};
 540                 Entry e = {0};
 541                 SlapReply rs = {0};
 542                 int i, j, changed = 0;
 543
 544                 /* Look for contextCSN from syncprov overlay. If
 545                  * there's no overlay, this will be a no-op. That means
 546                  * this is a pure consumer, so local changes will not be
 547                  * allowed, and all changes will already be reflected in
 548                  * the cookieState.
 549                  */
 550                 a.a_desc = slap_schema.si_ad_contextCSN;
 551                 e.e_attrs = &a;
 552                 e.e_name = si->si_wbe->be_suffix[0];
 553                 e.e_nname = si->si_wbe->be_nsuffix[0];
 554                 rs.sr_entry = &e;
 555                 rs.sr_flags = REP_ENTRY_MODIFIABLE;
 556                 at[0].an_name = a.a_desc->ad_cname;
 557                 at[0].an_desc = a.a_desc;
 558                 BER_BVZERO( &at[1].an_name );
 559                 op->o_req_dn = e.e_name;
 560                 op->o_req_ndn = e.e_nname;
 561
 562                 ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
 563                 rc = backend_operational( op, &rs );
 564                 if ( rc == LDAP_SUCCESS && a.a_vals ) {
 565                         int num;
 566                         for (i=0; !BER_BVISNULL( &a.a_vals[i] ); i++) ;
 567                         num = i;
 568                         /* check for differences */
 569                         if ( num != si->si_cookieState->cs_num ) {
 570                                 changed = 1;
 571                         } else {
 572                                 for ( i=0; i<num; i++ ) {
 573                                         if ( ber_bvcmp( &a.a_vals[i],
 574                                                 &si->si_cookieState->cs_vals[i] )) {
 575                                                 changed =1;
 576                                                 break;
 577                                         }
 578                                 }
 579                         }
 580                         if ( changed ) {
 581                                 ber_bvarray_free( si->si_cookieState->cs_vals );
 582                                 ch_free( si->si_cookieState->cs_sids );
 583                                 si->si_cookieState->cs_num = num;
 584                                 si->si_cookieState->cs_vals = a.a_vals;
 585                                 si->si_cookieState->cs_sids = slap_parse_csn_sids( a.a_vals,
 586                                         num, NULL );
 587                                 si->si_cookieState->cs_age++;
 588                         } else {
 589                                 ber_bvarray_free( a.a_vals );
 590                         }
 591                         changed = 0;
 592                 }
 593                 /* See if the cookieState has changed due to anything outside
 594                  * this particular consumer. That includes other consumers in
 595                  * the same context, or local changes detected above.
 596                  */
 597                 if ( si->si_cookieState->cs_num > 1 && si->si_cookieAge !=
 598                         si->si_cookieState->cs_age ) {
 599
 600                         for (i=0; !BER_BVISNULL( &si->si_syncCookie.ctxcsn[i] ); i++) {
 601                                 /* bogus, just dup everything */
 602                                 if ( si->si_syncCookie.sids[i] == -1 ) {
 603                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 604                                         ber_bvarray_dup_x( &si->si_syncCookie.ctxcsn,
 605                                                 si->si_cookieState->cs_vals, NULL );
 606                                         changed = 1;
 607                                         break;
 608                                 }
 609                                 for (j=0; j<si->si_cookieState->cs_num; j++) {
 610                                         if ( si->si_syncCookie.sids[i] !=
 611                                                 si->si_cookieState->cs_sids[j] )
 612                                                 continue;
 613                                         if ( bvmatch( &si->si_syncCookie.ctxcsn[i],
 614                                                 &si->si_cookieState->cs_vals[j] ))
 615                                                 break;
 616                                         ber_bvreplace( &si->si_syncCookie.ctxcsn[i],
 617                                                 &si->si_cookieState->cs_vals[j] );
 618                                         changed = 1;
 619                                         break;
 620                                 }
 621                         }
 622                         if ( changed ) {
 623                                 ch_free( si->si_syncCookie.octet_str.bv_val );
 624                                 slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 625                                         si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 626                                         SLAP_SINGLE_SHADOW( si->si_be ) ? -1 : slap_serverID );
 627                         }
 628                 }
 629                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 630         }
 631
 632         rc = ldap_sync_search( si, op->o_tmpmemctx );
 633
 634         if( rc != LDAP_SUCCESS ) {
 635                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: %s "
 636                         "ldap_search_ext: %s (%d)\n",
 637                         si->si_ridtxt, ldap_err2string( rc ), rc );
 638         }
 639
 640 done:
 641         if ( rc ) {
 642                 if ( si->si_ld ) {
 643                         ldap_unbind_ext( si->si_ld, NULL, NULL );
 644                         si->si_ld = NULL;
 645                 }
 646         }
 647
 648         return rc;
 649 }
 650
 651 static int
 652 compare_csns( struct sync_cookie *sc1, struct sync_cookie *sc2, int *which )
 653 {
 654         int i, j, match = 0;
 655         const char *text;
 656
 657         *which = 0;
 658
 659         if ( sc1->numcsns < sc2->numcsns ) {
 660                 *which = sc1->numcsns;
 661                 return -1;
 662         }
 663
 664         for (i=0; !BER_BVISNULL( &sc1->ctxcsn[i] ); i++) {
 665                 for (j=0; !BER_BVISNULL( &sc2->ctxcsn[j] ); j++) {
 666                         if ( sc1->sids[i] != sc2->sids[j] )
 667                                 continue;
 668                         value_match( &match, slap_schema.si_ad_entryCSN,
 669                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 670                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 671                                 &sc1->ctxcsn[i], &sc2->ctxcsn[i], &text );
 672                         if ( match < 0 ) {
 673                                 *which = j;
 674                                 return match;
 675                         }
 676                         break;
 677                 }
 678         }
 679         return match;
 680 }
 681
 682 static int
 683 do_syncrep2(
 684         Operation *op,
 685         syncinfo_t *si )
 686 {
 687         LDAPControl     **rctrls = NULL;
 688         LDAPControl     *rctrlp;
 689
 690         BerElementBuffer berbuf;
 691         BerElement      *ber = (BerElement *)&berbuf;
 692
 693         LDAPMessage     *res = NULL;
 694         LDAPMessage     *msg = NULL;
 695
 696         char            *retoid = NULL;
 697         struct berval   *retdata = NULL;
 698
 699         Entry           *entry = NULL;
 700
 701         int             syncstate;
 702         struct berval   syncUUID = BER_BVNULL;
 703         struct sync_cookie      syncCookie = { NULL };
 704         struct sync_cookie      syncCookie_req = { NULL };
 705         struct berval           cookie = BER_BVNULL;
 706
 707         int             rc,
 708                         err = LDAP_SUCCESS;
 709         ber_len_t       len;
 710
 711         struct berval   *psub;
 712         Modifications   *modlist = NULL;
 713
 714         int                             match, m;
 715
 716         struct timeval *tout_p = NULL;
 717         struct timeval tout = { 0, 0 };
 718
 719         int             refreshDeletes = 0;
 720         int             refreshDone = 1;
 721         BerVarray syncUUIDs = NULL;
 722         ber_tag_t si_tag;
 723
 724         if ( slapd_shutdown ) {
 725                 rc = -2;
 726                 goto done;
 727         }
 728
 729         ber_init2( ber, NULL, LBER_USE_DER );
 730         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 731
 732         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 %s\n", si->si_ridtxt, 0, 0 );
 733
 734         psub = &si->si_be->be_nsuffix[0];
 735
 736         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 737
 738         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 739                 tout_p = &tout;
 740         } else {
 741                 tout_p = NULL;
 742         }
 743
 744         while ( ( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 745                 tout_p, &res ) ) > 0 )
 746         {
 747                 if ( slapd_shutdown ) {
 748                         rc = -2;
 749                         goto done;
 750                 }
 751                 for( msg = ldap_first_message( si->si_ld, res );
 752                         msg != NULL;
 753                         msg = ldap_next_message( si->si_ld, msg ) )
 754                 {
 755                         if ( slapd_shutdown ) {
 756                                 rc = -2;
 757                                 goto done;
 758                         }
 759                         switch( ldap_msgtype( msg ) ) {
 760                         case LDAP_RES_SEARCH_ENTRY:
 761                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 762                                 /* we can't work without the control */
 763                                 rctrlp = NULL;
 764                                 if ( rctrls ) {
 765                                         LDAPControl **next;
 766                                         /* NOTE: make sure we use the right one;
 767                                          * a better approach would be to run thru
 768                                          * the whole list and take care of all */
 769                                         rctrlp = ldap_control_find( LDAP_CONTROL_SYNC_STATE, rctrls, &next );
 770                                         if ( next && ldap_control_find( LDAP_CONTROL_SYNC_STATE, next, NULL ) )
 771                                         {
 772                                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 773                                                         "got search entry with multiple "
 774                                                         "Sync State control\n", si->si_ridtxt, 0, 0 );
 775                                                 rc = -1;
 776                                                 goto done;
 777                                         }
 778                                 }
 779                                 if ( rctrlp == NULL ) {
 780                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 781                                                 "got search entry without "
 782                                                 "Sync State control\n", si->si_ridtxt, 0, 0 );
 783                                         rc = -1;
 784                                         goto done;
 785                                 }
 786                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 787                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 788                                 /* FIXME: what if syncUUID is NULL or empty?
 789                                  * (happens with back-sql...) */
 790                                 if ( BER_BVISEMPTY( &syncUUID ) ) {
 791                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
 792                                                 "got empty syncUUID with LDAP_SYNC_%s\n",
 793                                                 si->si_ridtxt,
 794                                                 syncrepl_state2str( syncstate ), 0 );
 795                                         ldap_controls_free( rctrls );
 796                                         rc = -1;
 797                                         goto done;
 798                                 }
 799                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 800                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 801                                         if ( !BER_BVISNULL( &cookie ) ) {
 802                                                 ch_free( syncCookie.octet_str.bv_val );
 803                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 804                                         }
 805                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 806                                         {
 807                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 808                                         }
 809                                 }
 810                                 rc = 0;
 811                                 if ( si->si_syncdata && si->si_logstate == SYNCLOG_LOGGING ) {
 812                                         modlist = NULL;
 813                                         if ( ( rc = syncrepl_message_to_op( si, op, msg ) ) == LDAP_SUCCESS &&
 814                                                 syncCookie.ctxcsn )
 815                                         {
 816                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 817                                         }
 818                                 } else if ( ( rc = syncrepl_message_to_entry( si, op, msg,
 819                                         &modlist, &entry, syncstate ) ) == LDAP_SUCCESS )
 820                                 {
 821                                         if ( ( rc = syncrepl_entry( si, op, entry, &modlist,
 822                                                 syncstate, &syncUUID ) ) == LDAP_SUCCESS &&
 823                                                 syncCookie.ctxcsn )
 824                                         {
 825                                                 rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 826                                         }
 827                                 }
 828                                 ldap_controls_free( rctrls );
 829                                 if ( modlist ) {
 830                                         slap_mods_free( modlist, 1 );
 831                                 }
 832                                 if ( rc )
 833                                         goto done;
 834                                 break;
 835
 836                         case LDAP_RES_SEARCH_REFERENCE:
 837                                 Debug( LDAP_DEBUG_ANY,
 838                                         "do_syncrep2: %s reference received error\n",
 839                                         si->si_ridtxt, 0, 0 );
 840                                 break;
 841
 842                         case LDAP_RES_SEARCH_RESULT:
 843                                 Debug( LDAP_DEBUG_SYNC,
 844                                         "do_syncrep2: %s LDAP_RES_SEARCH_RESULT\n",
 845                                         si->si_ridtxt, 0, 0 );
 846                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 847                                         &rctrls, 0 );
 848 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
 849                                 if ( err == LDAP_X_SYNC_REFRESH_REQUIRED ) {
 850                                         /* map old result code to registered code */
 851                                         err = LDAP_SYNC_REFRESH_REQUIRED;
 852                                 }
 853 #endif
 854                                 if ( err == LDAP_SYNC_REFRESH_REQUIRED ) {
 855                                         if ( si->si_logstate == SYNCLOG_LOGGING ) {
 856                                                 si->si_logstate = SYNCLOG_FALLBACK;
 857                                         }
 858                                         rc = err;
 859                                         goto done;
 860                                 }
 861                                 if ( rctrls ) {
 862                                         rctrlp = *rctrls;
 863                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 864
 865                                         ber_scanf( ber, "{" /*"}"*/);
 866                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 867                                                 ber_scanf( ber, "m", &cookie );
 868                                                 if ( !BER_BVISNULL( &cookie ) ) {
 869                                                         ch_free( syncCookie.octet_str.bv_val );
 870                                                         ber_dupbv( &syncCookie.octet_str, &cookie);
 871                                                 }
 872                                                 if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 873                                                 {
 874                                                         slap_parse_sync_cookie( &syncCookie, NULL );
 875                                                 }
 876                                         }
 877                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 878                                         {
 879                                                 ber_scanf( ber, "b", &refreshDeletes );
 880                                         }
 881                                         ber_scanf( ber, /*"{"*/ "}" );
 882                                 }
 883                                 if ( !syncCookie.ctxcsn ) {
 884                                         match = 1;
 885                                 } else if ( !syncCookie_req.ctxcsn ) {
 886                                         match = -1;
 887                                         m = 0;
 888                                 } else {
 889                                         match = compare_csns( &syncCookie_req, &syncCookie, &m );
 890                                 }
 891                                 if ( rctrls ) {
 892                                         ldap_controls_free( rctrls );
 893                                 }
 894                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 895                                         /* FIXME : different error behaviors according to
 896                                          *      1) err code : LDAP_BUSY ...
 897                                          *      2) on err policy : stop service, stop sync, retry
 898                                          */
 899                                         if ( refreshDeletes == 0 && match < 0 &&
 900                                                 err == LDAP_SUCCESS )
 901                                         {
 902                                                 syncrepl_del_nonpresent( op, si, NULL,
 903                                                         &syncCookie.ctxcsn[m] );
 904                                         } else {
 905                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 906                                                 si->si_presentlist = NULL;
 907                                         }
 908                                 }
 909                                 if ( syncCookie.ctxcsn && match < 0 && err == LDAP_SUCCESS )
 910                                 {
 911                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie );
 912                                 }
 913                                 if ( err == LDAP_SUCCESS
 914                                         && si->si_logstate == SYNCLOG_FALLBACK ) {
 915                                         si->si_logstate = SYNCLOG_LOGGING;
 916                                         rc = LDAP_SYNC_REFRESH_REQUIRED;
 917                                 } else {
 918                                         rc = -2;
 919                                 }
 920                                 goto done;
 921                                 break;
 922
 923                         case LDAP_RES_INTERMEDIATE:
 924                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 925                                         &retoid, &retdata, NULL, 0 );
 926                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 927                                         ber_init2( ber, retdata, LBER_USE_DER );
 928
 929                                         switch ( si_tag = ber_peek_tag( ber, &len ) ) {
 930                                         ber_tag_t tag;
 931                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 932                                                 Debug( LDAP_DEBUG_SYNC,
 933                                                         "do_syncrep2: %s %s - %s\n",
 934                                                         si->si_ridtxt,
 935                                                         "LDAP_RES_INTERMEDIATE",
 936                                                         "NEW_COOKIE" );
 937                                                 ber_scanf( ber, "tm", &tag, &cookie );
 938                                                 break;
 939                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 940                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 941                                                 Debug( LDAP_DEBUG_SYNC,
 942                                                         "do_syncrep2: %s %s - %s\n",
 943                                                         si->si_ridtxt,
 944                                                         "LDAP_RES_INTERMEDIATE",
 945                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 946                                                         "REFRESH_PRESENT" : "REFRESH_DELETE" );
 947                                                 if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
 948                                                         si->si_refreshDelete = 1;
 949                                                 } else {
 950                                                         si->si_refreshPresent = 1;
 951                                                 }
 952                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 953                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 954                                                 {
 955                                                         ber_scanf( ber, "m", &cookie );
 956                                                         if ( !BER_BVISNULL( &cookie ) ) {
 957                                                                 ch_free( syncCookie.octet_str.bv_val );
 958                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 959                                                         }
 960                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 961                                                         {
 962                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 963                                                         }
 964                                                 }
 965                                                 if ( ber_peek_tag( ber, &len ) ==
 966                                                         LDAP_TAG_REFRESHDONE )
 967                                                 {
 968                                                         ber_scanf( ber, "b", &refreshDone );
 969                                                 }
 970                                                 ber_scanf( ber, /*"{"*/ "}" );
 971                                                 break;
 972                                         case LDAP_TAG_SYNC_ID_SET:
 973                                                 Debug( LDAP_DEBUG_SYNC,
 974                                                         "do_syncrep2: %s %s - %s\n",
 975                                                         si->si_ridtxt,
 976                                                         "LDAP_RES_INTERMEDIATE",
 977                                                         "SYNC_ID_SET" );
 978                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 979                                                 if ( ber_peek_tag( ber, &len ) ==
 980                                                         LDAP_TAG_SYNC_COOKIE )
 981                                                 {
 982                                                         ber_scanf( ber, "m", &cookie );
 983                                                         if ( !BER_BVISNULL( &cookie ) ) {
 984                                                                 ch_free( syncCookie.octet_str.bv_val );
 985                                                                 ber_dupbv( &syncCookie.octet_str, &cookie );
 986                                                         }
 987                                                         if ( !BER_BVISNULL( &syncCookie.octet_str ) )
 988                                                         {
 989                                                                 slap_parse_sync_cookie( &syncCookie, NULL );
 990                                                                 compare_csns( &syncCookie_req, &syncCookie, &m );
 991                                                         }
 992                                                 }
 993                                                 if ( ber_peek_tag( ber, &len ) ==
 994                                                         LDAP_TAG_REFRESHDELETES )
 995                                                 {
 996                                                         ber_scanf( ber, "b", &refreshDeletes );
 997                                                 }
 998                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 999                                                 ber_scanf( ber, /*"{"*/ "}" );
1000                                                 if ( refreshDeletes ) {
1001                                                         syncrepl_del_nonpresent( op, si, syncUUIDs,
1002                                                                 &syncCookie.ctxcsn[m] );
1003                                                         ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
1004                                                 } else {
1005                                                         int i;
1006                                                         for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
1007                                                                 struct berval *syncuuid_bv;
1008                                                                 syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
1009                                                                 slap_sl_free( syncUUIDs[i].bv_val,op->o_tmpmemctx );
1010                                                                 if ( avl_insert( &si->si_presentlist,
1011                                                                         (caddr_t) syncuuid_bv,
1012                                                                         syncuuid_cmp, avl_dup_error ) )
1013                                                                 {
1014                                                                         ber_bvfree( syncuuid_bv );
1015                                                                 }
1016                                                         }
1017                                                         slap_sl_free( syncUUIDs, op->o_tmpmemctx );
1018                                                 }
1019                                                 slap_sync_cookie_free( &syncCookie, 0 );
1020                                                 break;
1021                                         default:
1022                                                 Debug( LDAP_DEBUG_ANY,
1023                                                         "do_syncrep2: %s unknown syncinfo tag (%ld)\n",
1024                                                         si->si_ridtxt, (long) si_tag, 0 );
1025                                                 ldap_memfree( retoid );
1026                                                 ber_bvfree( retdata );
1027                                                 continue;
1028                                         }
1029
1030                                         if ( !syncCookie.ctxcsn ) {
1031                                                 match = 1;
1032                                         } else if ( !syncCookie_req.ctxcsn ) {
1033                                                 match = -1;
1034                                                 m = 0;
1035                                         } else {
1036                                                 match = compare_csns( &syncCookie_req, &syncCookie, &m );
1037                                         }
1038
1039                                         if ( match < 0 ) {
1040                                                 if ( si->si_refreshPresent == 1 ) {
1041                                                         syncrepl_del_nonpresent( op, si, NULL,
1042                                                                 &syncCookie.ctxcsn[m] );
1043                                                 }
1044
1045                                                 if ( syncCookie.ctxcsn )
1046                                                 {
1047                                                         rc = syncrepl_updateCookie( si, op, psub, &syncCookie);
1048                                                 }
1049                                         }
1050
1051                                         ldap_memfree( retoid );
1052                                         ber_bvfree( retdata );
1053                                         break;
1054
1055                                 } else {
1056                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1057                                                 "unknown intermediate response (%d)\n",
1058                                                 si->si_ridtxt, rc, 0 );
1059                                         ldap_memfree( retoid );
1060                                         ber_bvfree( retdata );
1061                                         break;
1062                                 }
1063                                 break;
1064
1065                         default:
1066                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2: %s "
1067                                         "unknown message (0x%02lx)\n",
1068                                         si->si_ridtxt,
1069                                         (unsigned long)ldap_msgtype( msg ), 0 );
1070                                 break;
1071
1072                         }
1073                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1074                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1075                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1076                                 slap_sync_cookie_free( &syncCookie, 0 );
1077                         }
1078                 }
1079                 ldap_msgfree( res );
1080                 res = NULL;
1081         }
1082
1083         if ( rc == -1 ) {
1084                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1085                 err = rc;
1086         }
1087
1088 done:
1089         if ( err != LDAP_SUCCESS ) {
1090                 Debug( LDAP_DEBUG_ANY,
1091                         "do_syncrep2: %s (%d) %s\n",
1092                         si->si_ridtxt, err, ldap_err2string( err ) );
1093         }
1094
1095         slap_sync_cookie_free( &syncCookie, 0 );
1096         slap_sync_cookie_free( &syncCookie_req, 0 );
1097
1098         if ( res ) ldap_msgfree( res );
1099
1100         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1101                 if ( si->si_conn_setup ) {
1102                         ber_socket_t s;
1103                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1104                         connection_client_stop( s );
1105                         si->si_conn_setup = 0;
1106                 }
1107                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1108                 si->si_ld = NULL;
1109         }
1110
1111         return rc;
1112 }
1113
1114 static void *
1115 do_syncrepl(
1116         void    *ctx,
1117         void    *arg )
1118 {
1119         struct re_s* rtask = arg;
1120         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1121         Connection conn = {0};
1122         OperationBuffer opbuf;
1123         Operation *op;
1124         int rc = LDAP_SUCCESS;
1125         int dostop = 0;
1126         ber_socket_t s;
1127         int i, defer = 1, fail = 0;
1128         Backend *be;
1129
1130         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1131
1132         if ( si == NULL )
1133                 return NULL;
1134
1135         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1136
1137         switch( abs( si->si_type ) ) {
1138         case LDAP_SYNC_REFRESH_ONLY:
1139         case LDAP_SYNC_REFRESH_AND_PERSIST:
1140                 break;
1141         default:
1142                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1143                 return NULL;
1144         }
1145
1146         if ( slapd_shutdown ) {
1147                 if ( si->si_ld ) {
1148                         if ( si->si_conn_setup ) {
1149                                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1150                                 connection_client_stop( s );
1151                                 si->si_conn_setup = 0;
1152                         }
1153                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1154                         si->si_ld = NULL;
1155                 }
1156                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1157                 return NULL;
1158         }
1159
1160         connection_fake_init( &conn, &opbuf, ctx );
1161         op = &opbuf.ob_op;
1162
1163         /* use global malloc for now */
1164         op->o_tmpmemctx = NULL;
1165         op->o_tmpmfuncs = &ch_mfuncs;
1166
1167         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1168         op->o_bd = be = si->si_be;
1169         op->o_dn = op->o_bd->be_rootdn;
1170         op->o_ndn = op->o_bd->be_rootndn;
1171         if ( !si->si_schemachecking )
1172                 op->o_no_schema_check = 1;
1173
1174         /* If we're glued, send writes through the glue parent */
1175         if ( !si->si_wbe ) {
1176                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1177                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1178                 } else {
1179                         si->si_wbe = be;
1180                 }
1181         }
1182
1183         /* Establish session, do search */
1184         if ( !si->si_ld ) {
1185                 si->si_refreshDelete = 0;
1186                 si->si_refreshPresent = 0;
1187                 rc = do_syncrep1( op, si );
1188         }
1189
1190 reload:
1191         /* Process results */
1192         if ( rc == LDAP_SUCCESS ) {
1193                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1194
1195                 rc = do_syncrep2( op, si );
1196                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1197                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1198                         goto reload;
1199                 }
1200
1201                 /* We got deleted while running on cn=config */
1202                 if ( !si->si_ctype ) {
1203                         if ( si->si_conn_setup )
1204                                 dostop = 1;
1205                         rc = -1;
1206                 }
1207
1208                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1209                         /* If we succeeded, enable the connection for further listening.
1210                          * If we failed, tear down the connection and reschedule.
1211                          */
1212                         if ( rc == LDAP_SUCCESS ) {
1213                                 if ( si->si_conn_setup ) {
1214                                         connection_client_enable( s );
1215                                 } else {
1216                                         rc = connection_client_setup( s, do_syncrepl, arg );
1217                                         if ( rc == 0 )
1218                                                 si->si_conn_setup = 1;
1219                                 }
1220                         } else if ( si->si_conn_setup ) {
1221                                 dostop = 1;
1222                         }
1223                 } else {
1224                         if ( rc == -2 ) rc = 0;
1225                 }
1226         }
1227
1228         /* At this point, we have 4 cases:
1229          * 1) for any hard failure, give up and remove this task
1230          * 2) for ServerDown, reschedule this task to run
1231          * 3) for Refresh and Success, reschedule to run
1232          * 4) for Persist and Success, reschedule to defer
1233          */
1234         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1235
1236         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1237                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1238         }
1239
1240         if ( dostop ) {
1241                 connection_client_stop( s );
1242         }
1243
1244         if ( rc == LDAP_SUCCESS ) {
1245                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1246                         defer = 0;
1247                 }
1248                 rtask->interval.tv_sec = si->si_interval;
1249                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1250                 if ( si->si_retrynum ) {
1251                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1252                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1253                         }
1254                         si->si_retrynum[i] = RETRYNUM_TAIL;
1255                 }
1256         } else {
1257                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1258                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1259                                 break;
1260                 }
1261
1262                 if ( !si->si_ctype
1263                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1264                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1265                         fail = RETRYNUM_TAIL;
1266                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1267                         if ( si->si_retrynum[i] > 0 )
1268                                 si->si_retrynum[i]--;
1269                         fail = si->si_retrynum[i];
1270                         rtask->interval.tv_sec = si->si_retryinterval[i];
1271                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1272                         slap_wake_listener();
1273                 }
1274         }
1275
1276         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1277         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1278
1279         if ( rc ) {
1280                 if ( fail == RETRYNUM_TAIL ) {
1281                         Debug( LDAP_DEBUG_ANY,
1282                                 "do_syncrepl: rid %03d quitting\n",
1283                                 si->si_rid, 0, 0 );
1284                 } else if ( fail > 0 ) {
1285                         Debug( LDAP_DEBUG_ANY,
1286                                 "do_syncrepl: rid %03d retrying (%d retries left)\n",
1287                                 si->si_rid, fail, 0 );
1288                 } else {
1289                         Debug( LDAP_DEBUG_ANY,
1290                                 "do_syncrepl: rid %03d retrying\n",
1291                                 si->si_rid, 0, 0 );
1292                 }
1293         }
1294
1295         /* Do final delete cleanup */
1296         if ( !si->si_ctype ) {
1297                 cookie_state *cs = NULL;
1298                 syncinfo_t **sip;
1299
1300                 cs = be->be_syncinfo->si_cookieState;
1301                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1302                 *sip = si->si_next;
1303                 syncinfo_free( si, 0 );
1304                 if ( !be->be_syncinfo ) {
1305                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1306                         if ( cs ) {
1307                                 ch_free( cs->cs_sids );
1308                                 ber_bvarray_free( cs->cs_vals );
1309                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1310                                 ch_free( cs );
1311                         }
1312                 }
1313         }
1314         return NULL;
1315 }
1316
1317 static slap_verbmasks modops[] = {
1318         { BER_BVC("add"), LDAP_REQ_ADD },
1319         { BER_BVC("delete"), LDAP_REQ_DELETE },
1320         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1321         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1322         { BER_BVNULL, 0 }
1323 };
1324
1325 static Modifications *
1326 syncrepl_accesslog_mods(
1327         syncinfo_t *si,
1328         struct berval *vals
1329 )
1330 {
1331         char *colon;
1332         const char *text;
1333         AttributeDescription *ad;
1334         struct berval bv, bv2;
1335         short op;
1336         Modifications *mod = NULL, *modlist = NULL, **modtail;
1337         int i;
1338
1339         modtail = &modlist;
1340
1341         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1342                 ad = NULL;
1343                 bv = vals[i];
1344
1345                 colon = ber_bvchr( &bv, ':' );
1346                 if ( !colon ) {
1347                         /* Invalid */
1348                         continue;
1349                 }
1350
1351                 bv.bv_len = colon - bv.bv_val;
1352                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1353                         /* Invalid */
1354                         continue;
1355                 }
1356
1357                 /* Ignore dynamically generated attrs */
1358                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1359                         continue;
1360                 }
1361
1362                 /* Ignore excluded attrs */
1363                 if ( ldap_charray_inlist( si->si_exattrs,
1364                         ad->ad_type->sat_cname.bv_val ) )
1365                 {
1366                         continue;
1367                 }
1368
1369                 switch(colon[1]) {
1370                 case '+':       op = LDAP_MOD_ADD; break;
1371                 case '-':       op = LDAP_MOD_DELETE; break;
1372                 case '=':       op = LDAP_MOD_REPLACE; break;
1373                 case '#':       op = LDAP_MOD_INCREMENT; break;
1374                 default:        continue;
1375                 }
1376
1377                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1378                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1379                         mod->sml_flags = 0;
1380                         mod->sml_op = op;
1381                         mod->sml_next = NULL;
1382                         mod->sml_desc = ad;
1383                         mod->sml_type = ad->ad_cname;
1384                         mod->sml_values = NULL;
1385                         mod->sml_nvalues = NULL;
1386
1387                         *modtail = mod;
1388                         modtail = &mod->sml_next;
1389                 }
1390                 if ( colon[2] == ' ' ) {
1391                         bv.bv_val = colon + 3;
1392                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1393                         ber_dupbv( &bv2, &bv );
1394                         ber_bvarray_add( &mod->sml_values, &bv2 );
1395                 }
1396         }
1397         return modlist;
1398 }
1399
1400 static Modifications *
1401 syncrepl_changelog_mods(
1402         syncinfo_t *si,
1403         struct berval *vals
1404 )
1405 {
1406         return NULL;    /* FIXME */
1407 }
1408
1409 static int
1410 syncrepl_message_to_op(
1411         syncinfo_t      *si,
1412         Operation       *op,
1413         LDAPMessage     *msg
1414 )
1415 {
1416         BerElement      *ber = NULL;
1417         Modifications   *modlist = NULL;
1418         logschema *ls;
1419         SlapReply rs = { REP_RESULT };
1420         slap_callback cb = { NULL, null_callback, NULL, NULL };
1421
1422         const char      *text;
1423         char txtbuf[SLAP_TEXT_BUFLEN];
1424         size_t textlen = sizeof txtbuf;
1425
1426         struct berval   bdn, dn = BER_BVNULL, ndn;
1427         struct berval   bv, *bvals = NULL;
1428         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1429                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1430                 psup = BER_BVNULL, nsup = BER_BVNULL;
1431         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1432
1433         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1434                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1435                         "Message type should be entry (%d)",
1436                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1437                 return -1;
1438         }
1439
1440         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1441                 ls = &accesslog_sc;
1442         else
1443                 ls = &changelog_sc;
1444
1445         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1446
1447         if ( rc != LDAP_SUCCESS ) {
1448                 Debug( LDAP_DEBUG_ANY,
1449                         "syncrepl_message_to_op: %s dn get failed (%d)",
1450                         si->si_ridtxt, rc, 0 );
1451                 return rc;
1452         }
1453
1454         op->o_tag = LBER_DEFAULT;
1455         op->o_bd = si->si_wbe;
1456
1457         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1458                 == LDAP_SUCCESS ) {
1459                 if ( bv.bv_val == NULL )
1460                         break;
1461
1462                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1463                         bdn = bvals[0];
1464                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1465                         ber_dupbv( &op->o_req_dn, &dn );
1466                         ber_dupbv( &op->o_req_ndn, &ndn );
1467                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1468                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1469                         freeReqDn = 1;
1470                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1471                         int i = verb_to_mask( bvals[0].bv_val, modops );
1472                         if ( i < 0 ) {
1473                                 Debug( LDAP_DEBUG_ANY,
1474                                         "syncrepl_message_to_op: %s unknown op %s",
1475                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1476                                 ch_free( bvals );
1477                                 rc = -1;
1478                                 goto done;
1479                         }
1480                         op->o_tag = modops[i].mask;
1481                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1482                         /* Parse attribute into modlist */
1483                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1484                                 modlist = syncrepl_accesslog_mods( si, bvals );
1485                         } else {
1486                                 modlist = syncrepl_changelog_mods( si, bvals );
1487                         }
1488                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1489                         rdn = bvals[0];
1490                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1491                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1492                                 deleteOldRdn = 1;
1493                         }
1494                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1495                         sup = bvals[0];
1496                 } else if ( !ber_bvstrcasecmp( &bv,
1497                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1498                 {
1499                         slap_queue_csn( op, bvals );
1500                 }
1501                 ch_free( bvals );
1502         }
1503
1504         /* If we didn't get a mod type or a target DN, bail out */
1505         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1506                 rc = -1;
1507                 goto done;
1508         }
1509
1510         op->o_callback = &cb;
1511         slap_op_time( &op->o_time, &op->o_tincr );
1512
1513         switch( op->o_tag ) {
1514         case LDAP_REQ_ADD:
1515         case LDAP_REQ_MODIFY:
1516                 /* If we didn't get required data, bail */
1517                 if ( !modlist ) goto done;
1518
1519                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1520
1521                 if ( rc != LDAP_SUCCESS ) {
1522                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1523                                 "mods check (%s)\n",
1524                                 si->si_ridtxt, text, 0 );
1525                         goto done;
1526                 }
1527
1528                 if ( op->o_tag == LDAP_REQ_ADD ) {
1529                         Entry *e = entry_alloc();
1530                         op->ora_e = e;
1531                         op->ora_e->e_name = op->o_req_dn;
1532                         op->ora_e->e_nname = op->o_req_ndn;
1533                         freeReqDn = 0;
1534                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1535                         if( rc != LDAP_SUCCESS ) {
1536                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1537                                 "mods2entry (%s)\n",
1538                                         si->si_ridtxt, text, 0 );
1539                         } else {
1540                                 rc = op->o_bd->be_add( op, &rs );
1541                                 Debug( LDAP_DEBUG_SYNC,
1542                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1543                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1544                         }
1545                         if ( e == op->ora_e )
1546                                 be_entry_release_w( op, op->ora_e );
1547                 } else {
1548                         op->orm_modlist = modlist;
1549                         op->o_bd = si->si_wbe;
1550                         rc = op->o_bd->be_modify( op, &rs );
1551                         modlist = op->orm_modlist;
1552                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1553                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1554                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1555                         op->o_bd = si->si_be;
1556                 }
1557                 break;
1558         case LDAP_REQ_MODRDN:
1559                 if ( BER_BVISNULL( &rdn ) ) goto done;
1560
1561                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1562                         goto done;
1563                 }
1564                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1565                         goto done;
1566                 }
1567                 if ( !BER_BVISNULL( &sup ) ) {
1568                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1569                                 goto done;
1570                         }
1571                         op->orr_newSup = &psup;
1572                         op->orr_nnewSup = &nsup;
1573                 } else {
1574                         op->orr_newSup = NULL;
1575                         op->orr_nnewSup = NULL;
1576                 }
1577                 op->orr_newrdn = prdn;
1578                 op->orr_nnewrdn = nrdn;
1579                 op->orr_deleteoldrdn = deleteOldRdn;
1580                 op->orr_modlist = NULL;
1581                 if ( slap_modrdn2mods( op, &rs ) ) {
1582                         goto done;
1583                 }
1584
1585                 /* Append modlist for operational attrs */
1586                 {
1587                         Modifications *m;
1588
1589                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1590                                 ;
1591                         m->sml_next = modlist;
1592                         modlist = NULL;
1593                 }
1594                 rc = op->o_bd->be_modrdn( op, &rs );
1595                 slap_mods_free( op->orr_modlist, 1 );
1596                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1597                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1598                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1599                 break;
1600         case LDAP_REQ_DELETE:
1601                 rc = op->o_bd->be_delete( op, &rs );
1602                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1603                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1604                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1605                 break;
1606         }
1607 done:
1608         slap_graduate_commit_csn( op );
1609         op->o_bd = si->si_be;
1610         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1611         BER_BVZERO( &op->o_csn );
1612         if ( modlist ) {
1613                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1614         }
1615         if ( !BER_BVISNULL( &rdn ) ) {
1616                 if ( !BER_BVISNULL( &nsup ) ) {
1617                         ch_free( nsup.bv_val );
1618                 }
1619                 if ( !BER_BVISNULL( &psup ) ) {
1620                         ch_free( psup.bv_val );
1621                 }
1622                 if ( !BER_BVISNULL( &nrdn ) ) {
1623                         ch_free( nrdn.bv_val );
1624                 }
1625                 if ( !BER_BVISNULL( &prdn ) ) {
1626                         ch_free( prdn.bv_val );
1627                 }
1628         }
1629         if ( freeReqDn ) {
1630                 ch_free( op->o_req_ndn.bv_val );
1631                 ch_free( op->o_req_dn.bv_val );
1632         }
1633         ber_free( ber, 0 );
1634         return rc;
1635 }
1636
1637 static int
1638 syncrepl_message_to_entry(
1639         syncinfo_t      *si,
1640         Operation       *op,
1641         LDAPMessage     *msg,
1642         Modifications   **modlist,
1643         Entry                   **entry,
1644         int             syncstate
1645 )
1646 {
1647         Entry           *e = NULL;
1648         BerElement      *ber = NULL;
1649         Modifications   tmp;
1650         Modifications   *mod;
1651         Modifications   **modtail = modlist;
1652
1653         const char      *text;
1654         char txtbuf[SLAP_TEXT_BUFLEN];
1655         size_t textlen = sizeof txtbuf;
1656
1657         struct berval   bdn = BER_BVNULL, dn, ndn;
1658         int             rc, is_ctx;
1659
1660         *modlist = NULL;
1661
1662         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1663                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1664                         "Message type should be entry (%d)",
1665                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1666                 return -1;
1667         }
1668
1669         op->o_tag = LDAP_REQ_ADD;
1670
1671         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1672         if ( rc != LDAP_SUCCESS ) {
1673                 Debug( LDAP_DEBUG_ANY,
1674                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1675                         si->si_ridtxt, rc, 0 );
1676                 return rc;
1677         }
1678
1679         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1680                 /* NOTE: this could be done even before decoding the DN,
1681                  * although encoding errors wouldn't be detected */
1682                 rc = LDAP_SUCCESS;
1683                 goto done;
1684         }
1685
1686         if ( entry == NULL ) {
1687                 return -1;
1688         }
1689
1690         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1691         ber_dupbv( &op->o_req_dn, &dn );
1692         ber_dupbv( &op->o_req_ndn, &ndn );
1693         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1694         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1695
1696         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1697
1698         e = entry_alloc();
1699         e->e_name = op->o_req_dn;
1700         e->e_nname = op->o_req_ndn;
1701
1702         while ( ber_remaining( ber ) ) {
1703                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1704                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1705                 {
1706                         break;
1707                 }
1708
1709                 /* Drop all updates to the contextCSN of the context entry
1710                  * (ITS#4622, etc.)
1711                  */
1712                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1713                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1714                         ber_bvarray_free( tmp.sml_values );
1715                         continue;
1716                 }
1717
1718                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1719
1720                 mod->sml_op = LDAP_MOD_REPLACE;
1721                 mod->sml_flags = 0;
1722                 mod->sml_next = NULL;
1723                 mod->sml_desc = NULL;
1724                 mod->sml_type = tmp.sml_type;
1725                 mod->sml_values = tmp.sml_values;
1726                 mod->sml_nvalues = NULL;
1727
1728                 *modtail = mod;
1729                 modtail = &mod->sml_next;
1730         }
1731
1732         if ( *modlist == NULL ) {
1733                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1734                         si->si_ridtxt, 0, 0 );
1735                 rc = -1;
1736                 goto done;
1737         }
1738
1739         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1740
1741         if ( rc != LDAP_SUCCESS ) {
1742                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1743                         si->si_ridtxt, text, 0 );
1744                 goto done;
1745         }
1746
1747         /* Strip out dynamically generated attrs */
1748         for ( modtail = modlist; *modtail ; ) {
1749                 mod = *modtail;
1750                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1751                         *modtail = mod->sml_next;
1752                         slap_mod_free( &mod->sml_mod, 0 );
1753                         ch_free( mod );
1754                 } else {
1755                         modtail = &mod->sml_next;
1756                 }
1757         }
1758
1759         /* Strip out attrs in exattrs list */
1760         for ( modtail = modlist; *modtail ; ) {
1761                 mod = *modtail;
1762                 if ( ldap_charray_inlist( si->si_exattrs,
1763                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1764                 {
1765                         *modtail = mod->sml_next;
1766                         slap_mod_free( &mod->sml_mod, 0 );
1767                         ch_free( mod );
1768                 } else {
1769                         modtail = &mod->sml_next;
1770                 }
1771         }
1772
1773         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1774         if( rc != LDAP_SUCCESS ) {
1775                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1776                         si->si_ridtxt, text, 0 );
1777         }
1778
1779 done:
1780         ber_free( ber, 0 );
1781         if ( rc != LDAP_SUCCESS ) {
1782                 if ( e ) {
1783                         entry_free( e );
1784                         e = NULL;
1785                 }
1786         }
1787         if ( entry )
1788                 *entry = e;
1789
1790         return rc;
1791 }
1792
1793 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1794
1795 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1796  * entry if a previous refresh was interrupted before sending us a new
1797  * context state. We try to compare the new entry to the existing entry
1798  * and ignore the new entry if they are the same.
1799  *
1800  * Also, we may get an update where the entryDN has changed, due to
1801  * a ModDn on the provider. We detect this as well, so we can issue
1802  * the corresponding operation locally.
1803  *
1804  * In the case of a modify, we get a list of all the attributes
1805  * in the original entry. Rather than deleting the entry and re-adding it,
1806  * we issue a Modify request that deletes all the attributes and adds all
1807  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1808  * entry.
1809  *
1810  * We otherwise distinguish ModDN from Modify; in the case of
1811  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1812  * operational attributes from the entry, and do a regular ModDN.
1813  */
1814 typedef struct dninfo {
1815         Entry *new_entry;
1816         struct berval dn;
1817         struct berval ndn;
1818         int renamed;    /* Was an existing entry renamed? */
1819         int delOldRDN;  /* Was old RDN deleted? */
1820         Modifications **modlist;        /* the modlist we received */
1821         Modifications *mods;    /* the modlist we compared */
1822 } dninfo;
1823
1824 static int
1825 syncrepl_entry(
1826         syncinfo_t* si,
1827         Operation *op,
1828         Entry* entry,
1829         Modifications** modlist,
1830         int syncstate,
1831         struct berval* syncUUID )
1832 {
1833         Backend *be = op->o_bd;
1834         slap_callback   cb = { NULL, NULL, NULL, NULL };
1835         struct berval   *syncuuid_bv = NULL;
1836         struct berval   syncUUID_strrep = BER_BVNULL;
1837
1838         SlapReply       rs_search = {REP_RESULT};
1839         SlapReply       rs_delete = {REP_RESULT};
1840         SlapReply       rs_add = {REP_RESULT};
1841         SlapReply       rs_modify = {REP_RESULT};
1842         Filter f = {0};
1843         AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
1844         int rc = LDAP_SUCCESS;
1845
1846         struct berval pdn = BER_BVNULL;
1847         dninfo dni = {0};
1848         int     retry = 1;
1849         int     freecsn = 1;
1850
1851         Debug( LDAP_DEBUG_SYNC,
1852                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1853                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1854
1855         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1856                 if ( !si->si_refreshPresent ) {
1857                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1858                         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1859                                 syncuuid_cmp, avl_dup_error ) )
1860                         {
1861                                 ber_bvfree( syncuuid_bv );
1862                                 syncuuid_bv = NULL;
1863                         }
1864                 }
1865         }
1866
1867         if ( syncstate == LDAP_SYNC_PRESENT ) {
1868                 return 0;
1869         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1870                 if ( entry == NULL ) {
1871                         return 0;
1872                 }
1873         }
1874
1875         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1876         if ( syncstate != LDAP_SYNC_DELETE ) {
1877                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1878
1879                 if ( a == NULL ) {
1880                         /* add if missing */
1881                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1882                                 &syncUUID_strrep, syncUUID );
1883
1884                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1885                         /* replace only if necessary */
1886                         if ( a->a_nvals != a->a_vals ) {
1887                                 ber_memfree( a->a_nvals[0].bv_val );
1888                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1889                         }
1890                         ber_memfree( a->a_vals[0].bv_val );
1891                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1892                 }
1893         }
1894
1895         f.f_choice = LDAP_FILTER_EQUALITY;
1896         f.f_ava = &ava;
1897         ava.aa_desc = slap_schema.si_ad_entryUUID;
1898         ava.aa_value = *syncUUID;
1899
1900         if ( syncuuid_bv ) {
1901                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1902                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1903         }
1904         op->ors_filter = &f;
1905
1906         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1907         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1908                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1909         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1910         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1911                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1912         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1913         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1914
1915         op->o_tag = LDAP_REQ_SEARCH;
1916         op->ors_scope = LDAP_SCOPE_SUBTREE;
1917         op->ors_deref = LDAP_DEREF_NEVER;
1918
1919         /* get the entry for this UUID */
1920         op->o_req_dn = si->si_base;
1921         op->o_req_ndn = si->si_base;
1922
1923         op->o_time = slap_get_time();
1924         op->ors_tlimit = SLAP_NO_LIMIT;
1925         op->ors_slimit = 1;
1926
1927         op->ors_attrs = slap_anlist_all_attributes;
1928         op->ors_attrsonly = 0;
1929
1930         /* set callback function */
1931         op->o_callback = &cb;
1932         cb.sc_response = dn_callback;
1933         cb.sc_private = &dni;
1934         dni.new_entry = entry;
1935         dni.modlist = modlist;
1936
1937         if ( limits_check( op, &rs_search ) == 0 ) {
1938                 rc = be->be_search( op, &rs_search );
1939                 Debug( LDAP_DEBUG_SYNC,
1940                                 "syncrepl_entry: %s be_search (%d)\n",
1941                                 si->si_ridtxt, rc, 0 );
1942         }
1943
1944         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1945                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1946         }
1947
1948         cb.sc_response = null_callback;
1949         cb.sc_private = si;
1950
1951         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1952                 Debug( LDAP_DEBUG_SYNC,
1953                                 "syncrepl_entry: %s %s\n",
1954                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
1955         } else {
1956                 Debug( LDAP_DEBUG_SYNC,
1957                                 "syncrepl_entry: %s %s\n",
1958                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
1959         }
1960
1961         assert( BER_BVISNULL( &op->o_csn ) );
1962
1963         slap_op_time( &op->o_time, &op->o_tincr );
1964         switch ( syncstate ) {
1965         case LDAP_SYNC_ADD:
1966         case LDAP_SYNC_MODIFY:
1967                 {
1968                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
1969                         if ( a ) {
1970                                 /* FIXME: op->o_csn is assumed to be
1971                                  * on the thread's slab; this needs
1972                                  * to be cleared ASAP.
1973                                  * What happens if already present?
1974                                  */
1975                                 assert( BER_BVISNULL( &op->o_csn ) );
1976                                 op->o_csn = a->a_vals[0];
1977                                 freecsn = 0;
1978                         }
1979                 }
1980 retry_add:;
1981                 if ( BER_BVISNULL( &dni.dn ) ) {
1982
1983                         op->o_req_dn = entry->e_name;
1984                         op->o_req_ndn = entry->e_nname;
1985                         op->o_tag = LDAP_REQ_ADD;
1986                         op->ora_e = entry;
1987                         op->o_bd = si->si_wbe;
1988
1989                         rc = op->o_bd->be_add( op, &rs_add );
1990                         Debug( LDAP_DEBUG_SYNC,
1991                                         "syncrepl_entry: %s be_add (%d)\n",
1992                                         si->si_ridtxt, rc, 0 );
1993                         switch ( rs_add.sr_err ) {
1994                         case LDAP_SUCCESS:
1995                                 if ( op->ora_e == entry ) {
1996                                         be_entry_release_w( op, entry );
1997                                 }
1998                                 entry = NULL;
1999                                 break;
2000
2001                         case LDAP_REFERRAL:
2002                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2003                          * only if the suffix entry is not present */
2004                         case LDAP_NO_SUCH_OBJECT:
2005                                 rc = syncrepl_add_glue( op, entry );
2006                                 entry = NULL;
2007                                 break;
2008
2009                         /* if an entry was added via syncrepl_add_glue(),
2010                          * it likely has no entryUUID, so the previous
2011                          * be_search() doesn't find it.  In this case,
2012                          * give syncrepl a chance to modify it. Also
2013                          * allow for entries that were recreated with the
2014                          * same DN but a different entryUUID.
2015                          */
2016                         case LDAP_ALREADY_EXISTS:
2017                                 if ( retry ) {
2018                                         Operation       op2 = *op;
2019                                         SlapReply       rs2 = { 0 };
2020                                         slap_callback   cb2 = { 0 };
2021
2022                                         op2.o_bd = be;
2023                                         op2.o_tag = LDAP_REQ_SEARCH;
2024                                         op2.o_req_dn = entry->e_name;
2025                                         op2.o_req_ndn = entry->e_nname;
2026                                         op2.ors_scope = LDAP_SCOPE_BASE;
2027                                         op2.ors_deref = LDAP_DEREF_NEVER;
2028                                         op2.ors_attrs = slap_anlist_all_attributes;
2029                                         op2.ors_attrsonly = 0;
2030                                         op2.ors_limit = NULL;
2031                                         op2.ors_slimit = 1;
2032                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2033
2034                                         f.f_choice = LDAP_FILTER_PRESENT;
2035                                         f.f_desc = slap_schema.si_ad_objectClass;
2036                                         op2.ors_filter = &f;
2037                                         op2.ors_filterstr = generic_filterstr;
2038
2039                                         op2.o_callback = &cb2;
2040                                         cb2.sc_response = dn_callback;
2041                                         cb2.sc_private = &dni;
2042
2043                                         rc = be->be_search( &op2, &rs2 );
2044                                         if ( rc ) goto done;
2045
2046                                         retry = 0;
2047                                         slap_op_time( &op->o_time, &op->o_tincr );
2048                                         goto retry_add;
2049                                 }
2050                                 /* FALLTHRU */
2051
2052                         default:
2053                                 Debug( LDAP_DEBUG_ANY,
2054                                         "syncrepl_entry: %s be_add failed (%d)\n",
2055                                         si->si_ridtxt, rs_add.sr_err, 0 );
2056                                 break;
2057                         }
2058                         op->o_bd = be;
2059                         goto done;
2060                 }
2061                 /* FALLTHRU */
2062                 op->o_req_dn = dni.dn;
2063                 op->o_req_ndn = dni.ndn;
2064                 if ( dni.renamed ) {
2065                         struct berval noldp, newp, nnewp;
2066
2067                         op->o_tag = LDAP_REQ_MODRDN;
2068                         dnRdn( &entry->e_name, &op->orr_newrdn );
2069                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2070
2071                         dnParent( &dni.ndn, &noldp );
2072                         dnParent( &entry->e_nname, &nnewp );
2073                         if ( !dn_match( &noldp, &nnewp ) ) {
2074                                 dnParent( &entry->e_name, &newp );
2075                                 op->orr_newSup = &newp;
2076                                 op->orr_nnewSup = &nnewp;
2077                         } else {
2078                                 op->orr_newSup = NULL;
2079                                 op->orr_nnewSup = NULL;
2080                         }
2081                         op->orr_deleteoldrdn = dni.delOldRDN;
2082                         op->orr_modlist = NULL;
2083                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2084                                 goto done;
2085                         }
2086
2087                         /* RDNs must be NUL-terminated for back-ldap */
2088                         noldp = op->orr_newrdn;
2089                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2090                         noldp = op->orr_nnewrdn;
2091                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2092
2093                         /* Setup opattrs too */
2094                         {
2095                                 static AttributeDescription *nullattr = NULL;
2096                                 static AttributeDescription **const opattrs[] = {
2097                                         &slap_schema.si_ad_entryCSN,
2098                                         &slap_schema.si_ad_modifiersName,
2099                                         &slap_schema.si_ad_modifyTimestamp,
2100                                         &nullattr
2101                                 };
2102                                 AttributeDescription *opattr;
2103                                 Modifications *mod, **modtail, **ml;
2104                                 int i;
2105
2106                                 for ( mod = op->orr_modlist;
2107                                         mod->sml_next;
2108                                         mod = mod->sml_next )
2109                                         ;
2110                                 modtail = &mod->sml_next;
2111
2112                                 /* pull mod off incoming modlist, append to orr_modlist */
2113                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2114                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2115                                         {
2116                                                 if ( (*ml)->sml_desc == opattr ) {
2117                                                         mod = *ml;
2118                                                         *ml = mod->sml_next;
2119                                                         mod->sml_next = NULL;
2120                                                         *modtail = mod;
2121                                                         modtail = &mod->sml_next;
2122                                                         break;
2123                                                 }
2124                                         }
2125                                 }
2126                         }
2127                         op->o_bd = si->si_wbe;
2128                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2129                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2130                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2131
2132                         slap_mods_free( op->orr_modlist, 1 );
2133                         Debug( LDAP_DEBUG_SYNC,
2134                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2135                                         si->si_ridtxt, rc, 0 );
2136                         op->o_bd = be;
2137                         goto done;
2138                 }
2139                 if ( dni.mods ) {
2140                         op->o_tag = LDAP_REQ_MODIFY;
2141                         op->orm_modlist = dni.mods;
2142                         op->orm_no_opattrs = 1;
2143                         op->o_bd = si->si_wbe;
2144
2145                         rc = op->o_bd->be_modify( op, &rs_modify );
2146                         slap_mods_free( op->orm_modlist, 1 );
2147                         op->orm_no_opattrs = 0;
2148                         Debug( LDAP_DEBUG_SYNC,
2149                                         "syncrepl_entry: %s be_modify (%d)\n",
2150                                         si->si_ridtxt, rc, 0 );
2151                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2152                                 Debug( LDAP_DEBUG_ANY,
2153                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2154                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2155                         }
2156                         op->o_bd = be;
2157                 } else {
2158                         Debug( LDAP_DEBUG_SYNC,
2159                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2160                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2161                 }
2162                 goto done;
2163         case LDAP_SYNC_DELETE :
2164                 if ( !BER_BVISNULL( &dni.dn ) ) {
2165                         op->o_req_dn = dni.dn;
2166                         op->o_req_ndn = dni.ndn;
2167                         op->o_tag = LDAP_REQ_DELETE;
2168                         op->o_bd = si->si_wbe;
2169                         rc = op->o_bd->be_delete( op, &rs_delete );
2170                         Debug( LDAP_DEBUG_SYNC,
2171                                         "syncrepl_entry: %s be_delete (%d)\n",
2172                                         si->si_ridtxt, rc, 0 );
2173
2174                         while ( rs_delete.sr_err == LDAP_SUCCESS
2175                                 && op->o_delete_glue_parent ) {
2176                                 op->o_delete_glue_parent = 0;
2177                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2178                                         slap_callback cb = { NULL };
2179                                         cb.sc_response = slap_null_cb;
2180                                         dnParent( &op->o_req_ndn, &pdn );
2181                                         op->o_req_dn = pdn;
2182                                         op->o_req_ndn = pdn;
2183                                         op->o_callback = &cb;
2184                                         op->o_bd->be_delete( op, &rs_delete );
2185                                 } else {
2186                                         break;
2187                                 }
2188                         }
2189                         op->o_bd = be;
2190                 }
2191                 goto done;
2192
2193         default :
2194                 Debug( LDAP_DEBUG_ANY,
2195                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2196                 goto done;
2197         }
2198
2199 done:
2200         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2201                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2202                 BER_BVZERO( &syncUUID_strrep );
2203         }
2204         if ( !BER_BVISNULL( &dni.ndn ) ) {
2205                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2206         }
2207         if ( !BER_BVISNULL( &dni.dn ) ) {
2208                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2209         }
2210         if ( entry ) {
2211                 entry_free( entry );
2212         }
2213         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2214                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2215         }
2216         BER_BVZERO( &op->o_csn );
2217         return rc;
2218 }
2219
2220 static struct berval gcbva[] = {
2221         BER_BVC("top"),
2222         BER_BVC("glue"),
2223         BER_BVNULL
2224 };
2225
2226 #define NP_DELETE_ONE   2
2227
2228 static void
2229 syncrepl_del_nonpresent(
2230         Operation *op,
2231         syncinfo_t *si,
2232         BerVarray uuids,
2233         struct berval *cookiecsn )
2234 {
2235         Backend* be = op->o_bd;
2236         slap_callback   cb = { NULL };
2237         SlapReply       rs_search = {REP_RESULT};
2238         SlapReply       rs_delete = {REP_RESULT};
2239         SlapReply       rs_modify = {REP_RESULT};
2240         struct nonpresent_entry *np_list, *np_prev;
2241         int rc;
2242         AttributeName   an[2];
2243
2244         struct berval pdn = BER_BVNULL;
2245         struct berval csn;
2246
2247         op->o_req_dn = si->si_base;
2248         op->o_req_ndn = si->si_base;
2249
2250         cb.sc_response = nonpresent_callback;
2251         cb.sc_private = si;
2252
2253         op->o_callback = &cb;
2254         op->o_tag = LDAP_REQ_SEARCH;
2255         op->ors_scope = si->si_scope;
2256         op->ors_deref = LDAP_DEREF_NEVER;
2257         op->o_time = slap_get_time();
2258         op->ors_tlimit = SLAP_NO_LIMIT;
2259
2260
2261         if ( uuids ) {
2262                 Filter uf;
2263                 AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
2264                 int i;
2265
2266                 op->ors_attrsonly = 1;
2267                 op->ors_attrs = slap_anlist_no_attrs;
2268                 op->ors_limit = NULL;
2269                 op->ors_filter = &uf;
2270
2271                 uf.f_ava = &eq;
2272                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2273                 uf.f_next = NULL;
2274                 uf.f_choice = LDAP_FILTER_EQUALITY;
2275                 si->si_refreshDelete |= NP_DELETE_ONE;
2276
2277                 for (i=0; uuids[i].bv_val; i++) {
2278                         op->ors_slimit = 1;
2279                         slap_uuidstr_from_normalized( &uf.f_av_value, &uuids[i],
2280                                 op->o_tmpmemctx );
2281                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2282                         op->o_tmpfree( uf.f_av_value.bv_val, op->o_tmpmemctx );
2283                         uf.f_av_value = uuids[i];
2284                         rc = be->be_search( op, &rs_search );
2285                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2286                 }
2287                 si->si_refreshDelete ^= NP_DELETE_ONE;
2288         } else {
2289                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2290                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2291                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2292                 op->ors_attrs = an;
2293                 op->ors_slimit = SLAP_NO_LIMIT;
2294                 op->ors_attrsonly = 0;
2295                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2296                 op->ors_filterstr = si->si_filterstr;
2297                 op->o_nocaching = 1;
2298
2299                 if ( limits_check( op, &rs_search ) == 0 ) {
2300                         rc = be->be_search( op, &rs_search );
2301                 }
2302                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2303         }
2304
2305         op->o_nocaching = 0;
2306
2307         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2308
2309                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2310                         csn = *cookiecsn;
2311                 } else {
2312                         csn = si->si_syncCookie.ctxcsn[0];
2313                 }
2314
2315                 op->o_bd = si->si_wbe;
2316                 slap_queue_csn( op, &csn );
2317
2318                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2319                 while ( np_list != NULL ) {
2320                         LDAP_LIST_REMOVE( np_list, npe_link );
2321                         np_prev = np_list;
2322                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2323                         op->o_tag = LDAP_REQ_DELETE;
2324                         op->o_callback = &cb;
2325                         cb.sc_response = null_callback;
2326                         cb.sc_private = si;
2327                         op->o_req_dn = *np_prev->npe_name;
2328                         op->o_req_ndn = *np_prev->npe_nname;
2329                         rc = op->o_bd->be_delete( op, &rs_delete );
2330                         Debug( LDAP_DEBUG_SYNC,
2331                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2332                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2333
2334                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2335                                 Modifications mod1, mod2;
2336                                 mod1.sml_op = LDAP_MOD_REPLACE;
2337                                 mod1.sml_flags = 0;
2338                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2339                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2340                                 mod1.sml_values = &gcbva[0];
2341                                 mod1.sml_nvalues = NULL;
2342                                 mod1.sml_next = &mod2;
2343
2344                                 mod2.sml_op = LDAP_MOD_REPLACE;
2345                                 mod2.sml_flags = 0;
2346                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2347                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2348                                 mod2.sml_values = &gcbva[1];
2349                                 mod2.sml_nvalues = NULL;
2350                                 mod2.sml_next = NULL;
2351
2352                                 op->o_tag = LDAP_REQ_MODIFY;
2353                                 op->orm_modlist = &mod1;
2354
2355                                 rc = op->o_bd->be_modify( op, &rs_modify );
2356                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2357                         }
2358
2359                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2360                                         op->o_delete_glue_parent ) {
2361                                 op->o_delete_glue_parent = 0;
2362                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2363                                         slap_callback cb = { NULL };
2364                                         cb.sc_response = slap_null_cb;
2365                                         dnParent( &op->o_req_ndn, &pdn );
2366                                         op->o_req_dn = pdn;
2367                                         op->o_req_ndn = pdn;
2368                                         op->o_callback = &cb;
2369                                         /* give it a root privil ? */
2370                                         op->o_bd->be_delete( op, &rs_delete );
2371                                 } else {
2372                                         break;
2373                                 }
2374                         }
2375
2376                         op->o_delete_glue_parent = 0;
2377
2378                         ber_bvfree( np_prev->npe_name );
2379                         ber_bvfree( np_prev->npe_nname );
2380                         ch_free( np_prev );
2381
2382                         if ( slapd_shutdown ) {
2383                                 break;
2384                         }
2385                 }
2386
2387                 slap_graduate_commit_csn( op );
2388                 op->o_bd = be;
2389
2390                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2391                 BER_BVZERO( &op->o_csn );
2392         }
2393
2394         return;
2395 }
2396
2397 int
2398 syncrepl_add_glue(
2399         Operation* op,
2400         Entry *e )
2401 {
2402         Backend *be = op->o_bd;
2403         slap_callback cb = { NULL };
2404         Attribute       *a;
2405         int     rc;
2406         int suffrdns;
2407         int i;
2408         struct berval dn = BER_BVNULL;
2409         struct berval ndn = BER_BVNULL;
2410         Entry   *glue;
2411         SlapReply       rs_add = {REP_RESULT};
2412         struct berval   ptr, nptr;
2413         char            *comma;
2414
2415         op->o_tag = LDAP_REQ_ADD;
2416         op->o_callback = &cb;
2417         cb.sc_response = null_callback;
2418         cb.sc_private = NULL;
2419
2420         dn = e->e_name;
2421         ndn = e->e_nname;
2422
2423         /* count RDNs in suffix */
2424         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2425                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2426                         comma++;
2427                         ptr.bv_len -= comma - ptr.bv_val;
2428                         ptr.bv_val = comma;
2429                         i++;
2430                 }
2431                 suffrdns = i;
2432         } else {
2433                 /* suffix is "" */
2434                 suffrdns = 0;
2435         }
2436
2437         /* Start with BE suffix */
2438         ptr = dn;
2439         for ( i = 0; i < suffrdns; i++ ) {
2440                 comma = ber_bvrchr( &ptr, ',' );
2441                 if ( comma != NULL ) {
2442                         ptr.bv_len = comma - ptr.bv_val;
2443                 } else {
2444                         ptr.bv_len = 0;
2445                         break;
2446                 }
2447         }
2448
2449         if ( !BER_BVISEMPTY( &ptr ) ) {
2450                 dn.bv_len -= ptr.bv_len + 1;
2451                 dn.bv_val += ptr.bv_len + 1;
2452         }
2453
2454         /* the normalizedDNs are always the same length, no counting
2455          * required.
2456          */
2457         nptr = ndn;
2458         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2459                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2460                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2461
2462                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2463
2464         } else {
2465                 nptr.bv_len = 0;
2466         }
2467
2468         while ( ndn.bv_val > e->e_nname.bv_val ) {
2469                 glue = entry_alloc();
2470                 ber_dupbv( &glue->e_name, &dn );
2471                 ber_dupbv( &glue->e_nname, &ndn );
2472
2473                 a = attr_alloc( slap_schema.si_ad_objectClass );
2474
2475                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2476                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2477                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2478                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2479
2480                 a->a_nvals = a->a_vals;
2481
2482                 a->a_next = glue->e_attrs;
2483                 glue->e_attrs = a;
2484
2485                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2486
2487                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2488                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2489                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2490
2491                 a->a_nvals = a->a_vals;
2492
2493                 a->a_next = glue->e_attrs;
2494                 glue->e_attrs = a;
2495
2496                 op->o_req_dn = glue->e_name;
2497                 op->o_req_ndn = glue->e_nname;
2498                 op->ora_e = glue;
2499                 rc = be->be_add ( op, &rs_add );
2500                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2501                         if ( op->ora_e == glue )
2502                                 be_entry_release_w( op, glue );
2503                 } else {
2504                 /* incl. ALREADY EXIST */
2505                         entry_free( glue );
2506                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2507                                 entry_free( e );
2508                                 return rc;
2509                         }
2510                 }
2511
2512                 /* Move to next child */
2513                 comma = ber_bvrchr( &ptr, ',' );
2514                 if ( comma == NULL ) {
2515                         break;
2516                 }
2517                 ptr.bv_len = comma - ptr.bv_val;
2518
2519                 dn.bv_val = ++comma;
2520                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2521
2522                 comma = ber_bvrchr( &nptr, ',' );
2523                 assert( comma != NULL );
2524                 nptr.bv_len = comma - nptr.bv_val;
2525
2526                 ndn.bv_val = ++comma;
2527                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2528         }
2529
2530         op->o_req_dn = e->e_name;
2531         op->o_req_ndn = e->e_nname;
2532         op->ora_e = e;
2533         rc = be->be_add ( op, &rs_add );
2534         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2535                 if ( op->ora_e == e )
2536                         be_entry_release_w( op, e );
2537         } else {
2538                 entry_free( e );
2539         }
2540
2541         return rc;
2542 }
2543
2544 static int
2545 syncrepl_updateCookie(
2546         syncinfo_t *si,
2547         Operation *op,
2548         struct berval *pdn,
2549         struct sync_cookie *syncCookie )
2550 {
2551         Backend *be = op->o_bd;
2552         Modifications mod[2];
2553         struct berval first = BER_BVNULL;
2554
2555         int rc, i, j, len;
2556
2557         slap_callback cb = { NULL };
2558         SlapReply       rs_modify = {REP_RESULT};
2559
2560         mod[0].sml_op = LDAP_MOD_DELETE;
2561         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2562         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2563         mod[0].sml_values = NULL;
2564         mod[0].sml_nvalues = NULL;
2565         mod[0].sml_next = &mod[1];
2566
2567         mod[1].sml_op = LDAP_MOD_ADD;
2568         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2569         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2570         mod[1].sml_values = NULL;
2571         mod[1].sml_nvalues = NULL;
2572         mod[1].sml_next = NULL;
2573
2574         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2575
2576         for ( i=0; i<syncCookie->numcsns; i++ ) {
2577                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2578                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2579                                 continue;
2580                         len = syncCookie->ctxcsn[i].bv_len;
2581                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2582                                 len = si->si_cookieState->cs_vals[j].bv_len;
2583                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2584                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2585                                 ber_bvarray_add_x( &mod[0].sml_values,
2586                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2587                                 ber_bvarray_add_x( &mod[1].sml_values,
2588                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2589                                 if ( BER_BVISNULL( &first ))
2590                                         first = syncCookie->ctxcsn[i];
2591                         }
2592                         break;
2593                 }
2594                 /* there was no match for this SID, it's a new CSN */
2595                 if ( j == si->si_cookieState->cs_num ) {
2596                         ber_bvarray_add_x( &mod[1].sml_values,
2597                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2598                         if ( BER_BVISNULL( &first ))
2599                                 first = syncCookie->ctxcsn[i];
2600                 }
2601         }
2602         /* Should never happen, ITS#5065 */
2603         if ( BER_BVISNULL( &first )) {
2604                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2605                 return 0;
2606         }
2607         op->o_bd = si->si_wbe;
2608         slap_queue_csn( op, &first );
2609
2610         op->o_tag = LDAP_REQ_MODIFY;
2611
2612         cb.sc_response = null_callback;
2613         cb.sc_private = si;
2614
2615         op->o_callback = &cb;
2616         op->o_req_dn = op->o_bd->be_suffix[0];
2617         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2618
2619         /* update contextCSN */
2620         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2621
2622         if ( mod[0].sml_values )
2623                 op->orm_modlist = mod;
2624         else
2625                 op->orm_modlist = &mod[1];
2626
2627         op->orm_no_opattrs = 1;
2628         rc = op->o_bd->be_modify( op, &rs_modify );
2629         op->orm_no_opattrs = 0;
2630         op->o_msgid = 0;
2631
2632         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2633                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2634                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2635                 /* If we replaced any old values */
2636                 if ( mod[0].sml_values ) {
2637                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2638                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2639                                         if ( mod[0].sml_values[i].bv_val !=
2640                                                 si->si_cookieState->cs_vals[j].bv_val )
2641                                                 continue;
2642                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2643                                                 &mod[1].sml_values[i] );
2644                                         break;
2645                                 }
2646                         }
2647                 } else {
2648                         /* Else we just added */
2649                         si->si_cookieState->cs_num += syncCookie->numcsns;
2650                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2651                         free( si->si_cookieState->cs_sids );
2652                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2653                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2654                 }
2655
2656                 si->si_cookieState->cs_age++;
2657                 si->si_cookieAge = si->si_cookieState->cs_age;
2658         } else {
2659                 Debug( LDAP_DEBUG_ANY,
2660                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2661                         si->si_ridtxt, rs_modify.sr_err, 0 );
2662         }
2663         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2664
2665         slap_graduate_commit_csn( op );
2666         op->o_bd = be;
2667         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2668         BER_BVZERO( &op->o_csn );
2669         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2670         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2671         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2672
2673         return rc;
2674 }
2675
2676 static void
2677 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2678         Modifications ***mret, Modifications ***mcur )
2679 {
2680         int i, j;
2681         Modifications *mod, **modtail;
2682
2683         modtail = *mret;
2684
2685         if ( old ) {
2686                 int n, o, nn, no;
2687                 struct berval **adds, **dels;
2688                 /* count old and new */
2689                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2690                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2691
2692                 /* there MUST be both old and new values */
2693                 assert( o != 0 );
2694                 assert( n != 0 );
2695                 j = 0;
2696
2697                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2698                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2699
2700                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2701                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2702
2703                 nn = n; no = o;
2704
2705                 for ( i=0; i<o; i++ ) {
2706                         for ( j=0; j<n; j++ ) {
2707                                 if ( !adds[j] )
2708                                         continue;
2709                                 if ( bvmatch( dels[i], adds[j] ) ) {
2710                                         no--;
2711                                         nn--;
2712                                         adds[j] = NULL;
2713                                         dels[i] = NULL;
2714                                         break;
2715                                 }
2716                         }
2717                 }
2718
2719                 i = j;
2720                 /* all old values were deleted, just use the replace op */
2721                 if ( no == o ) {
2722                         i = j-1;
2723                 } else if ( no ) {
2724                 /* delete some values */
2725                         mod = ch_malloc( sizeof( Modifications ) );
2726                         mod->sml_op = LDAP_MOD_DELETE;
2727                         mod->sml_flags = 0;
2728                         mod->sml_desc = old->a_desc;
2729                         mod->sml_type = mod->sml_desc->ad_cname;
2730                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2731                         if ( old->a_vals != old->a_nvals ) {
2732                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2733                         } else {
2734                                 mod->sml_nvalues = NULL;
2735                         }
2736                         j = 0;
2737                         for ( i = 0; i < o; i++ ) {
2738                                 if ( !dels[i] ) continue;
2739                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2740                                 if ( mod->sml_nvalues ) {
2741                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2742                                 }
2743                                 j++;
2744                         }
2745                         BER_BVZERO( &mod->sml_values[j] );
2746                         if ( mod->sml_nvalues ) {
2747                                 BER_BVZERO( &mod->sml_nvalues[j] );
2748                         }
2749                         *modtail = mod;
2750                         modtail = &mod->sml_next;
2751                         i = j;
2752                 }
2753                 op->o_tmpfree( dels, op->o_tmpmemctx );
2754                 /* some values were added */
2755                 if ( nn && no < o ) {
2756                         mod = ch_malloc( sizeof( Modifications ) );
2757                         mod->sml_op = LDAP_MOD_ADD;
2758                         mod->sml_flags = 0;
2759                         mod->sml_desc = old->a_desc;
2760                         mod->sml_type = mod->sml_desc->ad_cname;
2761                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2762                         if ( old->a_vals != old->a_nvals ) {
2763                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2764                         } else {
2765                                 mod->sml_nvalues = NULL;
2766                         }
2767                         j = 0;
2768                         for ( i = 0; i < n; i++ ) {
2769                                 if ( !adds[i] ) continue;
2770                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2771                                 if ( mod->sml_nvalues ) {
2772                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2773                                 }
2774                                 j++;
2775                         }
2776                         BER_BVZERO( &mod->sml_values[j] );
2777                         if ( mod->sml_nvalues ) {
2778                                 BER_BVZERO( &mod->sml_nvalues[j] );
2779                         }
2780                         *modtail = mod;
2781                         modtail = &mod->sml_next;
2782                         i = j;
2783                 }
2784                 op->o_tmpfree( adds, op->o_tmpmemctx );
2785         } else {
2786                 /* new attr, just use the new mod */
2787                 i = 0;
2788                 j = 1;
2789         }
2790         /* advance to next element */
2791         mod = **mcur;
2792         if ( mod ) {
2793                 if ( i != j ) {
2794                         **mcur = mod->sml_next;
2795                         *modtail = mod;
2796                         modtail = &mod->sml_next;
2797                 } else {
2798                         *mcur = &mod->sml_next;
2799                 }
2800         }
2801         *mret = modtail;
2802 }
2803
2804 static int
2805 dn_callback(
2806         Operation*      op,
2807         SlapReply*      rs )
2808 {
2809         dninfo *dni = op->o_callback->sc_private;
2810
2811         if ( rs->sr_type == REP_SEARCH ) {
2812                 if ( !BER_BVISNULL( &dni->dn ) ) {
2813                         Debug( LDAP_DEBUG_ANY,
2814                                 "dn_callback : consistency error - "
2815                                 "entryUUID is not unique\n", 0, 0, 0 );
2816                 } else {
2817                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2818                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2819                         /* If there is a new entry, see if it differs from the old.
2820                          * We compare the non-normalized values so that cosmetic changes
2821                          * in the provider are always propagated.
2822                          */
2823                         if ( dni->new_entry ) {
2824                                 Modifications **modtail, **ml;
2825                                 Attribute *old, *new;
2826                                 int is_ctx;
2827
2828                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2829                                         &op->o_bd->be_nsuffix[0] );
2830
2831                                 /* Did the DN change?
2832                                  */
2833                                 if ( !dn_match( &rs->sr_entry->e_name,
2834                                                 &dni->new_entry->e_name ) )
2835                                 {
2836                                         struct berval oldRDN, oldVal;
2837                                         AttributeDescription *ad = NULL;
2838                                         Attribute *a;
2839
2840                                         dni->renamed = 1;
2841                                         /* See if the oldRDN was deleted */
2842                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2843                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2844                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2845                                                 oldRDN.bv_val );
2846                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2847                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2848                                         a = attr_find( dni->new_entry->e_attrs, ad );
2849                                         if ( !a || value_find_ex( ad,
2850                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2851                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2852                                                 SLAP_MR_VALUE_OF_SYNTAX, a->a_nvals,
2853                                                 &oldVal, op->o_tmpmemctx ) != LDAP_SUCCESS )
2854                                         {
2855                                                 dni->delOldRDN = 1;
2856                                         }
2857                                         /* OK, this was just a modDN, we're done */
2858                                         return LDAP_SUCCESS;
2859                                 }
2860
2861                                 modtail = &dni->mods;
2862                                 ml = dni->modlist;
2863
2864                                 /* Make sure new entry is actually newer than old entry */
2865                                 old = attr_find( rs->sr_entry->e_attrs,
2866                                         slap_schema.si_ad_entryCSN );
2867                                 new = attr_find( dni->new_entry->e_attrs,
2868                                         slap_schema.si_ad_entryCSN );
2869                                 if ( new && old ) {
2870                                         int rc, len = old->a_vals[0].bv_len;
2871                                         if ( len > new->a_vals[0].bv_len )
2872                                                 len = new->a_vals[0].bv_len;
2873                                         rc = memcmp( old->a_vals[0].bv_val,
2874                                                 new->a_vals[0].bv_val, len );
2875                                         if ( rc > 0 ) {
2876                                                 Debug( LDAP_DEBUG_SYNC,
2877                                                         "dn_callback : new entry is older than ours "
2878                                                         "%s ours %s, new %s\n",
2879                                                         rs->sr_entry->e_name.bv_val,
2880                                                         old->a_vals[0].bv_val,
2881                                                         new->a_vals[0].bv_val );
2882                                                 return LDAP_SUCCESS;
2883                                         } else if ( rc == 0 ) {
2884                                                 Debug( LDAP_DEBUG_SYNC,
2885                                                         "dn_callback : entries have identical CSN "
2886                                                         "%s ours %s, new %s\n",
2887                                                         rs->sr_entry->e_name.bv_val,
2888                                                         old->a_vals[0].bv_val,
2889                                                         new->a_vals[0].bv_val );
2890                                                 return LDAP_SUCCESS;
2891                                         }
2892                                 }
2893
2894                                 /* We assume that attributes are saved in the same order
2895                                  * in the remote and local databases. So if we walk through
2896                                  * the attributeDescriptions one by one they should match in
2897                                  * lock step. If not, look for an add or delete.
2898                                  */
2899                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2900                                                 old && new; )
2901                                 {
2902                                         /* If we've seen this before, use its mod now */
2903                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2904                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2905                                                 new = new->a_next;
2906                                                 continue;
2907                                         }
2908                                         /* Skip contextCSN */
2909                                         if ( is_ctx && old->a_desc ==
2910                                                 slap_schema.si_ad_contextCSN ) {
2911                                                 old = old->a_next;
2912                                                 continue;
2913                                         }
2914
2915                                         if ( old->a_desc != new->a_desc ) {
2916                                                 Modifications *mod;
2917                                                 Attribute *tmp;
2918
2919                                                 /* If it's just been re-added later,
2920                                                  * remember that we've seen it.
2921                                                  */
2922                                                 tmp = attr_find( new, old->a_desc );
2923                                                 if ( tmp ) {
2924                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2925                                                 } else {
2926                                                         /* If it's a new attribute, pull it in.
2927                                                          */
2928                                                         tmp = attr_find( old, new->a_desc );
2929                                                         if ( !tmp ) {
2930                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2931                                                                 new = new->a_next;
2932                                                                 continue;
2933                                                         }
2934                                                         /* Delete old attr */
2935                                                         mod = ch_malloc( sizeof( Modifications ) );
2936                                                         mod->sml_op = LDAP_MOD_DELETE;
2937                                                         mod->sml_flags = 0;
2938                                                         mod->sml_desc = old->a_desc;
2939                                                         mod->sml_type = mod->sml_desc->ad_cname;
2940                                                         mod->sml_values = NULL;
2941                                                         mod->sml_nvalues = NULL;
2942                                                         *modtail = mod;
2943                                                         modtail = &mod->sml_next;
2944                                                 }
2945                                                 old = old->a_next;
2946                                                 continue;
2947                                         }
2948                                         /* kludge - always update modifiersName so that it
2949                                          * stays co-located with the other mod opattrs. But only
2950                                          * if we know there are other valid mods.
2951                                          */
2952                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
2953                                                 dni->mods )
2954                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2955                                         else
2956                                                 attr_cmp( op, old, new, &modtail, &ml );
2957                                         new = new->a_next;
2958                                         old = old->a_next;
2959                                 }
2960                                 *modtail = *ml;
2961                                 *ml = NULL;
2962                         }
2963                 }
2964         } else if ( rs->sr_type == REP_RESULT ) {
2965                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
2966                         Debug( LDAP_DEBUG_ANY,
2967                                 "dn_callback : consistency error - "
2968                                 "entryUUID is not unique\n", 0, 0, 0 );
2969                 }
2970         }
2971
2972         return LDAP_SUCCESS;
2973 }
2974
2975 static int
2976 nonpresent_callback(
2977         Operation*      op,
2978         SlapReply*      rs )
2979 {
2980         syncinfo_t *si = op->o_callback->sc_private;
2981         Attribute *a;
2982         int count = 0;
2983         struct berval* present_uuid = NULL;
2984         struct nonpresent_entry *np_entry;
2985
2986         if ( rs->sr_type == REP_RESULT ) {
2987                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2988                 si->si_presentlist = NULL;
2989
2990         } else if ( rs->sr_type == REP_SEARCH ) {
2991                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
2992                         char buf[sizeof("rid=000 not")];
2993
2994                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2995
2996                         if ( a ) {
2997                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2998                                         syncuuid_cmp );
2999                         }
3000
3001                         if ( slap_debug & LDAP_DEBUG_SYNC ) {
3002                                 sprintf( buf, "%s %s", si->si_ridtxt,
3003                                         present_uuid ? "got" : "not" );
3004                         }
3005
3006                         Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3007                                 buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3008
3009                         if ( a == NULL ) return 0;
3010                 }
3011
3012                 if ( present_uuid == NULL ) {
3013                         np_entry = (struct nonpresent_entry *)
3014                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3015                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3016                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3017                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3018
3019                 } else {
3020                         avl_delete( &si->si_presentlist,
3021                                         &a->a_nvals[0], syncuuid_cmp );
3022                         ch_free( present_uuid->bv_val );
3023                         ch_free( present_uuid );
3024                 }
3025         }
3026         return LDAP_SUCCESS;
3027 }
3028
3029 static int
3030 null_callback(
3031         Operation*      op,
3032         SlapReply*      rs )
3033 {
3034         if ( rs->sr_err != LDAP_SUCCESS &&
3035                 rs->sr_err != LDAP_REFERRAL &&
3036                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3037                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3038                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3039         {
3040                 Debug( LDAP_DEBUG_ANY,
3041                         "null_callback : error code 0x%x\n",
3042                         rs->sr_err, 0, 0 );
3043         }
3044         return LDAP_SUCCESS;
3045 }
3046
3047 static struct berval *
3048 slap_uuidstr_from_normalized(
3049         struct berval* uuidstr,
3050         struct berval* normalized,
3051         void *ctx )
3052 {
3053 #if 0
3054         struct berval *new;
3055         unsigned char nibble;
3056         int i, d = 0;
3057
3058         if ( normalized == NULL ) return NULL;
3059         if ( normalized->bv_len != 16 ) return NULL;
3060
3061         if ( uuidstr ) {
3062                 new = uuidstr;
3063         } else {
3064                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3065                 if ( new == NULL ) {
3066                         return NULL;
3067                 }
3068         }
3069
3070         new->bv_len = 36;
3071
3072         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3073                 if ( new != uuidstr ) {
3074                         slap_sl_free( new, ctx );
3075                 }
3076                 return NULL;
3077         }
3078
3079         for ( i = 0; i < 16; i++ ) {
3080                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3081                         new->bv_val[(i<<1)+d] = '-';
3082                         d += 1;
3083                 }
3084
3085                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3086                 if ( nibble < 10 ) {
3087                         new->bv_val[(i<<1)+d] = nibble + '0';
3088                 } else {
3089                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3090                 }
3091
3092                 nibble = (normalized->bv_val[i]) & 0xF;
3093                 if ( nibble < 10 ) {
3094                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3095                 } else {
3096                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3097                 }
3098         }
3099
3100         new->bv_val[new->bv_len] = '\0';
3101         return new;
3102 #endif
3103
3104         struct berval   *new;
3105         int             rc = 0;
3106
3107         if ( normalized == NULL ) return NULL;
3108         if ( normalized->bv_len != 16 ) return NULL;
3109
3110         if ( uuidstr ) {
3111                 new = uuidstr;
3112
3113         } else {
3114                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3115                 if ( new == NULL ) {
3116                         return NULL;
3117                 }
3118         }
3119
3120         new->bv_len = 36;
3121
3122         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3123                 rc = 1;
3124                 goto done;
3125         }
3126
3127         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3128                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3129
3130 done:;
3131         if ( rc == -1 ) {
3132                 if ( new != NULL ) {
3133                         if ( new->bv_val != NULL ) {
3134                                 slap_sl_free( new->bv_val, ctx );
3135                         }
3136
3137                         if ( new != uuidstr ) {
3138                                 slap_sl_free( new, ctx );
3139                         }
3140                 }
3141                 new = NULL;
3142
3143         } else {
3144                 new->bv_len = rc;
3145         }
3146
3147         return new;
3148 }
3149
3150 static int
3151 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3152 {
3153         const struct berval *uuid1 = v_uuid1;
3154         const struct berval *uuid2 = v_uuid2;
3155         int rc = uuid1->bv_len - uuid2->bv_len;
3156         if ( rc ) return rc;
3157         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3158 }
3159
3160 static void
3161 avl_ber_bvfree( void *v_bv )
3162 {
3163         struct berval   *bv = (struct berval *)v_bv;
3164
3165         if( v_bv == NULL ) return;
3166         if ( !BER_BVISNULL( bv ) ) {
3167                 ch_free( bv->bv_val );
3168         }
3169         ch_free( (char *) bv );
3170 }
3171
3172 void
3173 syncinfo_free( syncinfo_t *sie, int free_all )
3174 {
3175         syncinfo_t *si_next;
3176
3177         if ( free_all && sie->si_cookieState ) {
3178                 ch_free( sie->si_cookieState->cs_sids );
3179                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3180                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3181                 ch_free( sie->si_cookieState );
3182         }
3183         do {
3184                 si_next = sie->si_next;
3185
3186                 if ( sie->si_ld ) {
3187                         if ( sie->si_conn_setup ) {
3188                                 ber_socket_t s;
3189                                 ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
3190                                 connection_client_stop( s );
3191                                 sie->si_conn_setup = 0;
3192                         }
3193                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3194                 }
3195
3196                 /* re-fetch it, in case it was already removed */
3197                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3198                 if ( sie->si_re ) {
3199                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3200                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3201                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3202                 }
3203
3204                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3205
3206                 bindconf_free( &sie->si_bindconf );
3207
3208                 if ( sie->si_filterstr.bv_val ) {
3209                         ch_free( sie->si_filterstr.bv_val );
3210                 }
3211                 if ( sie->si_logfilterstr.bv_val ) {
3212                         ch_free( sie->si_logfilterstr.bv_val );
3213                 }
3214                 if ( sie->si_base.bv_val ) {
3215                         ch_free( sie->si_base.bv_val );
3216                 }
3217                 if ( sie->si_logbase.bv_val ) {
3218                         ch_free( sie->si_logbase.bv_val );
3219                 }
3220                 if ( sie->si_attrs ) {
3221                         int i = 0;
3222                         while ( sie->si_attrs[i] != NULL ) {
3223                                 ch_free( sie->si_attrs[i] );
3224                                 i++;
3225                         }
3226                         ch_free( sie->si_attrs );
3227                 }
3228                 if ( sie->si_exattrs ) {
3229                         int i = 0;
3230                         while ( sie->si_exattrs[i] != NULL ) {
3231                                 ch_free( sie->si_exattrs[i] );
3232                                 i++;
3233                         }
3234                         ch_free( sie->si_exattrs );
3235                 }
3236                 if ( sie->si_anlist ) {
3237                         int i = 0;
3238                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3239                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3240                                 i++;
3241                         }
3242                         ch_free( sie->si_anlist );
3243                 }
3244                 if ( sie->si_exanlist ) {
3245                         int i = 0;
3246                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3247                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3248                                 i++;
3249                         }
3250                         ch_free( sie->si_exanlist );
3251                 }
3252                 if ( sie->si_retryinterval ) {
3253                         ch_free( sie->si_retryinterval );
3254                 }
3255                 if ( sie->si_retrynum ) {
3256                         ch_free( sie->si_retrynum );
3257                 }
3258                 if ( sie->si_retrynum_init ) {
3259                         ch_free( sie->si_retrynum_init );
3260                 }
3261                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3262                 if ( sie->si_presentlist ) {
3263                     avl_free( sie->si_presentlist, avl_ber_bvfree );
3264                 }
3265                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3266                         struct nonpresent_entry* npe;
3267                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3268                         LDAP_LIST_REMOVE( npe, npe_link );
3269                         if ( npe->npe_name ) {
3270                                 if ( npe->npe_name->bv_val ) {
3271                                         ch_free( npe->npe_name->bv_val );
3272                                 }
3273                                 ch_free( npe->npe_name );
3274                         }
3275                         if ( npe->npe_nname ) {
3276                                 if ( npe->npe_nname->bv_val ) {
3277                                         ch_free( npe->npe_nname->bv_val );
3278                                 }
3279                                 ch_free( npe->npe_nname );
3280                         }
3281                         ch_free( npe );
3282                 }
3283                 ch_free( sie );
3284                 sie = si_next;
3285         } while ( free_all && si_next );
3286 }
3287
3288
3289
3290 /* NOTE: used & documented in slapd.conf(5) */
3291 #define IDSTR                   "rid"
3292 #define PROVIDERSTR             "provider"
3293 #define SCHEMASTR               "schemachecking"
3294 #define FILTERSTR               "filter"
3295 #define SEARCHBASESTR           "searchbase"
3296 #define SCOPESTR                "scope"
3297 #define ATTRSONLYSTR            "attrsonly"
3298 #define ATTRSSTR                "attrs"
3299 #define TYPESTR                 "type"
3300 #define INTERVALSTR             "interval"
3301 #define RETRYSTR                "retry"
3302 #define SLIMITSTR               "sizelimit"
3303 #define TLIMITSTR               "timelimit"
3304 #define SYNCDATASTR             "syncdata"
3305 #define LOGBASESTR              "logbase"
3306 #define LOGFILTERSTR    "logfilter"
3307
3308 /* FIXME: undocumented */
3309 #define EXATTRSSTR              "exattrs"
3310 #define MANAGEDSAITSTR          "manageDSAit"
3311
3312 /* mandatory */
3313 #define GOT_ID                  0x0001
3314 #define GOT_PROVIDER    0x0002
3315 #define GOT_BASE                0x0004
3316
3317 /* check */
3318 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3319
3320 static struct {
3321         struct berval key;
3322         int val;
3323 } scopes[] = {
3324         { BER_BVC("base"), LDAP_SCOPE_BASE },
3325         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3326         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3327         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3328         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3329         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3330         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3331         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3332         { BER_BVNULL, 0 }
3333 };
3334
3335 static slap_verbmasks datamodes[] = {
3336         { BER_BVC("default"), SYNCDATA_DEFAULT },
3337         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3338         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3339         { BER_BVNULL, 0 }
3340 };
3341
3342 static int
3343 parse_syncrepl_line(
3344         ConfigArgs      *c,
3345         syncinfo_t      *si )
3346 {
3347         int     gots = 0;
3348         int     i;
3349         char    *val;
3350
3351         for ( i = 1; i < c->argc; i++ ) {
3352                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3353                                         STRLENOF( IDSTR "=" ) ) )
3354                 {
3355                         int tmp;
3356                         /* '\0' string terminator accounts for '=' */
3357                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3358                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3359                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3360                                         "Error: parse_syncrepl_line: "
3361                                         "unable to parse syncrepl id \"%s\"", val );
3362                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3363                                 return -1;
3364                         }
3365                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3366                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3367                                         "Error: parse_syncrepl_line: "
3368                                         "syncrepl id %d is out of range [0..4095]", tmp );
3369                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3370                                 return -1;
3371                         }
3372                         si->si_rid = tmp;
3373                         sprintf( si->si_ridtxt, IDSTR "=%d", si->si_rid );
3374                         gots |= GOT_ID;
3375                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3376                                         STRLENOF( PROVIDERSTR "=" ) ) )
3377                 {
3378                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3379                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3380                         gots |= GOT_PROVIDER;
3381                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3382                                         STRLENOF( SCHEMASTR "=" ) ) )
3383                 {
3384                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3385                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3386                                 si->si_schemachecking = 1;
3387                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3388                                 si->si_schemachecking = 0;
3389                         } else {
3390                                 si->si_schemachecking = 1;
3391                         }
3392                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3393                                         STRLENOF( FILTERSTR "=" ) ) )
3394                 {
3395                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3396                         if ( si->si_filterstr.bv_val )
3397                                 ch_free( si->si_filterstr.bv_val );
3398                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3399                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3400                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3401                 {
3402                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3403                         if ( si->si_logfilterstr.bv_val )
3404                                 ch_free( si->si_logfilterstr.bv_val );
3405                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3406                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3407                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3408                 {
3409                         struct berval   bv;
3410                         int             rc;
3411
3412                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3413                         if ( si->si_base.bv_val ) {
3414                                 ch_free( si->si_base.bv_val );
3415                         }
3416                         ber_str2bv( val, 0, 0, &bv );
3417                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3418                         if ( rc != LDAP_SUCCESS ) {
3419                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3420                                         "Invalid base DN \"%s\": %d (%s)",
3421                                         val, rc, ldap_err2string( rc ) );
3422                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3423                                 return -1;
3424                         }
3425                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3426                                 ch_free( si->si_base.bv_val );
3427                                 BER_BVZERO( &si->si_base );
3428                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3429                                         "Base DN \"%s\" is not within the database naming context",
3430                                         val );
3431                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3432                                 return -1;
3433                         }
3434                         gots |= GOT_BASE;
3435                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3436                                         STRLENOF( LOGBASESTR "=" ) ) )
3437                 {
3438                         struct berval   bv;
3439                         int             rc;
3440
3441                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3442                         if ( si->si_logbase.bv_val ) {
3443                                 ch_free( si->si_logbase.bv_val );
3444                         }
3445                         ber_str2bv( val, 0, 0, &bv );
3446                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3447                         if ( rc != LDAP_SUCCESS ) {
3448                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3449                                         "Invalid logbase DN \"%s\": %d (%s)",
3450                                         val, rc, ldap_err2string( rc ) );
3451                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3452                                 return -1;
3453                         }
3454                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3455                                         STRLENOF( SCOPESTR "=" ) ) )
3456                 {
3457                         int j;
3458                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3459                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3460                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3461                                         si->si_scope = scopes[j].val;
3462                                         break;
3463                                 }
3464                         }
3465                         if ( BER_BVISNULL(&scopes[j].key) ) {
3466                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3467                                         "Error: parse_syncrepl_line: "
3468                                         "unknown scope \"%s\"", val);
3469                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3470                                 return -1;
3471                         }
3472                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3473                                         STRLENOF( ATTRSONLYSTR ) ) )
3474                 {
3475                         si->si_attrsonly = 1;
3476                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3477                                         STRLENOF( ATTRSSTR "=" ) ) )
3478                 {
3479                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3480                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3481                                 char *attr_fname;
3482                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3483                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3484                                 if ( si->si_anlist == NULL ) {
3485                                         ch_free( attr_fname );
3486                                         return -1;
3487                                 }
3488                                 si->si_anfile = attr_fname;
3489                         } else {
3490                                 char *str, *s, *next;
3491                                 char delimstr[] = " ,\t";
3492                                 str = ch_strdup( val );
3493                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3494                                                 s != NULL;
3495                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3496                                 {
3497                                         if ( strlen(s) == 1 && *s == '*' ) {
3498                                                 si->si_allattrs = 1;
3499                                                 val[ s - str ] = delimstr[0];
3500                                         }
3501                                         if ( strlen(s) == 1 && *s == '+' ) {
3502                                                 si->si_allopattrs = 1;
3503                                                 val [ s - str ] = delimstr[0];
3504                                         }
3505                                 }
3506                                 ch_free( str );
3507                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3508                                 if ( si->si_anlist == NULL ) {
3509                                         return -1;
3510                                 }
3511                         }
3512                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3513                                         STRLENOF( EXATTRSSTR "=" ) ) )
3514                 {
3515                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3516                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3517                                 char *attr_fname;
3518                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3519                                 si->si_exanlist = file2anlist(
3520                                         si->si_exanlist, attr_fname, " ,\t" );
3521                                 if ( si->si_exanlist == NULL ) {
3522                                         ch_free( attr_fname );
3523                                         return -1;
3524                                 }
3525                                 ch_free( attr_fname );
3526                         } else {
3527                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3528                                 if ( si->si_exanlist == NULL ) {
3529                                         return -1;
3530                                 }
3531                         }
3532                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3533                                         STRLENOF( TYPESTR "=" ) ) )
3534                 {
3535                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3536                         if ( !strncasecmp( val, "refreshOnly",
3537                                                 STRLENOF("refreshOnly") ) )
3538                         {
3539                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3540                         } else if ( !strncasecmp( val, "refreshAndPersist",
3541                                                 STRLENOF("refreshAndPersist") ) )
3542                         {
3543                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3544                                 si->si_interval = 60;
3545                         } else {
3546                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3547                                         "Error: parse_syncrepl_line: "
3548                                         "unknown sync type \"%s\"", val);
3549                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3550                                 return -1;
3551                         }
3552                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3553                                         STRLENOF( INTERVALSTR "=" ) ) )
3554                 {
3555                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3556                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3557                                 si->si_interval = 0;
3558                         } else if ( strchr( val, ':' ) != NULL ) {
3559                                 char *next, *ptr = val;
3560                                 unsigned dd, hh, mm, ss;
3561
3562                                 /* NOTE: the test for ptr[ 0 ] == '-'
3563                                  * should go before the call to strtoul() */
3564                                 dd = strtoul( ptr, &next, 10 );
3565                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' ) {
3566                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3567                                                 "Error: parse_syncrepl_line: "
3568                                                 "invalid interval \"%s\", unable to parse days", val );
3569                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3570                                         return -1;
3571                                 }
3572                                 ptr = next + 1;
3573                                 hh = strtoul( ptr, &next, 10 );
3574                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || hh > 24 ) {
3575                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3576                                                 "Error: parse_syncrepl_line: "
3577                                                 "invalid interval \"%s\", unable to parse hours", val );
3578                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3579                                         return -1;
3580                                 }
3581                                 ptr = next + 1;
3582                                 mm = strtoul( ptr, &next, 10 );
3583                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || mm > 60 ) {
3584                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3585                                                 "Error: parse_syncrepl_line: "
3586                                                 "invalid interval \"%s\", unable to parse minutes", val );
3587                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3588                                         return -1;
3589                                 }
3590                                 ptr = next + 1;
3591                                 ss = strtoul( ptr, &next, 10 );
3592                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != '\0' || ss > 60 ) {
3593                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3594                                                 "Error: parse_syncrepl_line: "
3595                                                 "invalid interval \"%s\", unable to parse seconds", val );
3596                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3597                                         return -1;
3598                                 }
3599                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3600                         } else {
3601                                 unsigned long   t;
3602
3603                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3604                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3605                                                 "Error: parse_syncrepl_line: "
3606                                                 "invalid interval \"%s\"", val );
3607                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3608                                         return -1;
3609                                 }
3610                                 si->si_interval = (time_t)t;
3611                         }
3612                         if ( si->si_interval < 0 ) {
3613                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3614                                         "Error: parse_syncrepl_line: "
3615                                         "invalid interval \"%ld\"",
3616                                         (long) si->si_interval);
3617                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3618                                 return -1;
3619                         }
3620                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3621                                         STRLENOF( RETRYSTR "=" ) ) )
3622                 {
3623                         char **retry_list;
3624                         int j, k, n;
3625
3626                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3627                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3628                         retry_list[0] = NULL;
3629
3630                         slap_str2clist( &retry_list, val, " ,\t" );
3631
3632                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3633                         n = k / 2;
3634                         if ( k % 2 ) {
3635                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3636                                         "Error: incomplete syncrepl retry list" );
3637                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3638                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3639                                         ch_free( retry_list[k] );
3640                                 }
3641                                 ch_free( retry_list );
3642                                 return 1;
3643                         }
3644                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3645                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3646                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3647                         for ( j = 0; j < n; j++ ) {
3648                                 unsigned long   t;
3649                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3650                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3651                                                 "Error: invalid retry interval \"%s\" (#%d)",
3652                                                 retry_list[j*2], j );
3653                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3654                                         /* do some cleanup */
3655                                         return 1;
3656                                 }
3657                                 si->si_retryinterval[j] = (time_t)t;
3658                                 if ( *retry_list[j*2+1] == '+' ) {
3659                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3660                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3661                                         j++;
3662                                         break;
3663                                 } else {
3664                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3665                                                         || si->si_retrynum_init[j] <= 0 )
3666                                         {
3667                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3668                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3669                                                         retry_list[j*2+1], j );
3670                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3671                                                 /* do some cleanup */
3672                                                 return 1;
3673                                         }
3674                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3675                                                         || si->si_retrynum[j] <= 0 )
3676                                         {
3677                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3678                                                         "Error: invalid retry number \"%s\" (#%d)",
3679                                                         retry_list[j*2+1], j );
3680                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3681                                                 /* do some cleanup */
3682                                                 return 1;
3683                                         }
3684                                 }
3685                         }
3686                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3687                         si->si_retrynum[j] = RETRYNUM_TAIL;
3688                         si->si_retryinterval[j] = 0;
3689
3690                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3691                                 ch_free( retry_list[k] );
3692                         }
3693                         ch_free( retry_list );
3694                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3695                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3696                 {
3697                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3698                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3699                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3700                         {
3701                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3702                                         "invalid manageDSAit value \"%s\".\n",
3703                                         val );
3704                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3705                                 return 1;
3706                         }
3707                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3708                                         STRLENOF( SLIMITSTR "=") ) )
3709                 {
3710                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3711                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3712                                 si->si_slimit = 0;
3713
3714                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3715                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3716                                         "invalid size limit value \"%s\".\n",
3717                                         val );
3718                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3719                                 return 1;
3720                         }
3721                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3722                                         STRLENOF( TLIMITSTR "=" ) ) )
3723                 {
3724                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3725                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3726                                 si->si_tlimit = 0;
3727
3728                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3729                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3730                                         "invalid time limit value \"%s\".\n",
3731                                         val );
3732                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3733                                 return 1;
3734                         }
3735                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3736                                         STRLENOF( SYNCDATASTR "=" ) ) )
3737                 {
3738                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3739                         si->si_syncdata = verb_to_mask( val, datamodes );
3740                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3741                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3742                                 "Error: parse_syncrepl_line: "
3743                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3744                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3745                         return -1;
3746                 }
3747         }
3748
3749         if ( gots != GOT_ALL ) {
3750                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3751                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3752                         gots & GOT_ID ? "" : " "IDSTR,
3753                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3754                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3755                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3756                 return -1;
3757         }
3758
3759         return 0;
3760 }
3761
3762 static int
3763 add_syncrepl(
3764         ConfigArgs *c )
3765 {
3766         syncinfo_t *si;
3767         int     rc = 0;
3768
3769         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3770                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3771                         "operations required for syncrepl", c->be->be_type );
3772                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3773                 return 1;
3774         }
3775         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3776                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3777                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3778                 return 1;
3779         }
3780         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3781
3782         if ( si == NULL ) {
3783                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3784                 return 1;
3785         }
3786
3787         si->si_bindconf.sb_tls = SB_TLS_OFF;
3788         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3789         si->si_schemachecking = 0;
3790         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3791                 &si->si_filterstr );
3792         si->si_base.bv_val = NULL;
3793         si->si_scope = LDAP_SCOPE_SUBTREE;
3794         si->si_attrsonly = 0;
3795         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3796         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3797         si->si_attrs = NULL;
3798         si->si_allattrs = 0;
3799         si->si_allopattrs = 0;
3800         si->si_exattrs = NULL;
3801         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3802         si->si_interval = 86400;
3803         si->si_retryinterval = NULL;
3804         si->si_retrynum_init = NULL;
3805         si->si_retrynum = NULL;
3806         si->si_manageDSAit = 0;
3807         si->si_tlimit = 0;
3808         si->si_slimit = 0;
3809         si->si_conn_setup = 0;
3810
3811         si->si_presentlist = NULL;
3812         LDAP_LIST_INIT( &si->si_nonpresentlist );
3813         ldap_pvt_thread_mutex_init( &si->si_mutex );
3814
3815         rc = parse_syncrepl_line( c, si );
3816
3817         if ( rc == 0 ) {
3818                 /* Must be LDAPv3 because we need controls */
3819                 switch ( si->si_bindconf.sb_version ) {
3820                 case 0:
3821                         /* not explicitly set */
3822                         si->si_bindconf.sb_version = LDAP_VERSION3;
3823                         break;
3824                 case 3:
3825                         /* explicitly set */
3826                         break;
3827                 default:
3828                         Debug( LDAP_DEBUG_ANY,
3829                                 "version %d incompatible with syncrepl\n",
3830                                 si->si_bindconf.sb_version, 0, 0 );
3831                         syncinfo_free( si, 0 );
3832                         return 1;
3833                 }
3834
3835                 si->si_be = c->be;
3836                 if ( slapMode & SLAP_SERVER_MODE ) {
3837                         Listener **l = slapd_get_listeners();
3838                         int isMe = 0;
3839
3840                         /* check if URL points to current server. If so, ignore
3841                          * this configuration. We require an exact match. Just
3842                          * in case they really want to do this, they can vary
3843                          * the case of the URL to allow it.
3844                          */
3845                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3846                                 int i;
3847                                 for ( i=0; l[i]; i++ ) {
3848                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3849                                                 isMe = 1;
3850                                                 break;
3851                                         }
3852                                 }
3853                         }
3854
3855                         if ( !isMe ) {
3856                                 init_syncrepl( si );
3857                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3858                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3859                                         si->si_ridtxt );
3860                                 if ( si->si_re )
3861                                         rc = config_sync_shadow( c ) ? -1 : 0;
3862                                 else
3863                                         rc = -1;
3864                         }
3865                 } else {
3866                         /* mirrormode still needs to see this flag in tool mode */
3867                         rc = config_sync_shadow( c ) ? -1 : 0;
3868                 }
3869         }
3870
3871 #ifdef HAVE_TLS
3872         /* Use main slapd defaults */
3873         bindconf_tls_defaults( &si->si_bindconf );
3874 #endif
3875         if ( rc < 0 ) {
3876                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3877                 syncinfo_free( si, 0 );
3878                 return 1;
3879         } else {
3880                 Debug( LDAP_DEBUG_CONFIG,
3881                         "Config: ** successfully added syncrepl \"%s\"\n",
3882                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3883                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3884                 if ( !si->si_schemachecking ) {
3885                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3886                 }
3887                 if ( c->be->be_syncinfo ) {
3888                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3889                 } else {
3890                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3891                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3892                 }
3893                 si->si_next = c->be->be_syncinfo;
3894                 c->be->be_syncinfo = si;
3895                 return 0;
3896         }
3897 }
3898
3899 static void
3900 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3901 {
3902         struct berval bc, uri;
3903         char buf[BUFSIZ*2], *ptr;
3904         int i;
3905
3906 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3907
3908         BER_BVZERO( bv );
3909
3910         /* temporarily inhibit bindconf from printing URI */
3911         uri = si->si_bindconf.sb_uri;
3912         BER_BVZERO( &si->si_bindconf.sb_uri );
3913         si->si_bindconf.sb_version = 0;
3914         bindconf_unparse( &si->si_bindconf, &bc );
3915         si->si_bindconf.sb_uri = uri;
3916         si->si_bindconf.sb_version = LDAP_VERSION3;
3917
3918         ptr = buf;
3919         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3920         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%d " PROVIDERSTR "=%s",
3921                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3922         if ( ptr - buf >= sizeof( buf ) ) return;
3923         if ( !BER_BVISNULL( &bc ) ) {
3924                 if ( WHATSLEFT <= bc.bv_len ) {
3925                         free( bc.bv_val );
3926                         return;
3927                 }
3928                 ptr = lutil_strcopy( ptr, bc.bv_val );
3929                 free( bc.bv_val );
3930         }
3931         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3932                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3933                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3934                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3935                 *ptr++ = '"';
3936         }
3937         if ( !BER_BVISNULL( &si->si_base ) ) {
3938                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3939                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3940                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3941                 *ptr++ = '"';
3942         }
3943         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3944                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3945                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3946                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3947                 *ptr++ = '"';
3948         }
3949         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3950                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3951                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3952                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3953                 *ptr++ = '"';
3954         }
3955         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
3956                 if ( si->si_scope == scopes[i].val ) {
3957                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
3958                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
3959                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
3960                         break;
3961                 }
3962         }
3963         if ( si->si_attrsonly ) {
3964                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3965                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
3966         }
3967         if ( si->si_anfile ) {
3968                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
3969                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
3970                 ptr = lutil_strcopy( ptr, si->si_anfile );
3971                 *ptr++ = '"';
3972         } else if ( si->si_allattrs || si->si_allopattrs ||
3973                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
3974         {
3975                 char *old;
3976
3977                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3978                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
3979                 old = ptr;
3980                 /* FIXME: add check for overflow */
3981                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
3982                 if ( si->si_allattrs ) {
3983                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
3984                         if ( old != ptr ) *ptr++ = ',';
3985                         *ptr++ = '*';
3986                 }
3987                 if ( si->si_allopattrs ) {
3988                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
3989                         if ( old != ptr ) *ptr++ = ',';
3990                         *ptr++ = '+';
3991                 }
3992                 *ptr++ = '"';
3993         }
3994         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
3995                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
3996                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
3997                 /* FIXME: add check for overflow */
3998                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
3999         }
4000         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4001         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4002         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4003
4004         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4005         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4006         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4007                 "refreshAndPersist" : "refreshOnly" );
4008
4009         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4010                 int dd, hh, mm, ss;
4011
4012                 dd = si->si_interval;
4013                 ss = dd % 60;
4014                 dd /= 60;
4015                 mm = dd % 60;
4016                 dd /= 60;
4017                 hh = dd % 24;
4018                 dd /= 24;
4019                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4020                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4021                 if ( ptr - buf >= sizeof( buf ) ) return;
4022         } else if ( si->si_retryinterval ) {
4023                 int space=0;
4024                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4025                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4026                 for (i=0; si->si_retryinterval[i]; i++) {
4027                         if ( space ) *ptr++ = ' ';
4028                         space = 1;
4029                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4030                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4031                                 *ptr++ = '+';
4032                         else
4033                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4034                 }
4035                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4036                 *ptr++ = '"';
4037         }
4038
4039         if ( si->si_slimit ) {
4040                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4041                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4042                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4043         }
4044
4045         if ( si->si_tlimit ) {
4046                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4047                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4048                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4049         }
4050
4051         if ( si->si_syncdata ) {
4052                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4053                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4054                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4055                         ptr = lutil_strcopy( ptr, bc.bv_val );
4056                 }
4057         }
4058         bc.bv_len = ptr - buf;
4059         bc.bv_val = buf;
4060         ber_dupbv( bv, &bc );
4061 }
4062
4063 int
4064 syncrepl_config( ConfigArgs *c )
4065 {
4066         if (c->op == SLAP_CONFIG_EMIT) {
4067                 if ( c->be->be_syncinfo ) {
4068                         struct berval bv;
4069                         syncinfo_t *si;
4070
4071                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4072                                 syncrepl_unparse( si, &bv );
4073                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4074                         }
4075                         return 0;
4076                 }
4077                 return 1;
4078         } else if ( c->op == LDAP_MOD_DELETE ) {
4079                 cookie_state *cs = NULL;
4080                 if ( c->be->be_syncinfo ) {
4081                         syncinfo_t *si, **sip;
4082                         int i;
4083
4084                         cs = c->be->be_syncinfo->si_cookieState;
4085                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4086                                 si = *sip;
4087                                 if ( c->valx == -1 || i == c->valx ) {
4088                                         *sip = si->si_next;
4089                                         /* If the task is currently active, we have to leave
4090                                          * it running. It will exit on its own. This will only
4091                                          * happen when running on the cn=config DB.
4092                                          */
4093                                         if ( si->si_re &&
4094                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
4095                                                 si->si_ctype = 0;
4096                                         } else {
4097                                                 syncinfo_free( si, 0 );
4098                                         }
4099                                         if ( i == c->valx )
4100                                                 break;
4101                                 } else {
4102                                         sip = &si->si_next;
4103                                 }
4104                         }
4105                 }
4106                 if ( !c->be->be_syncinfo ) {
4107                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4108                         if ( cs ) {
4109                                 ber_bvarray_free( cs->cs_vals );
4110                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4111                                 ch_free( cs );
4112                         }
4113                 }
4114                 return 0;
4115         }
4116         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4117                 Debug(LDAP_DEBUG_ANY, "%s: "
4118                         "syncrepl: database already shadowed.\n",
4119                         c->log, 0, 0);
4120                 return(1);
4121         } else {
4122                 return add_syncrepl( c );
4123         }
4124 }