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\n", si->si_ridtxt, 0, 0 );
1068                                 break;
1069
1070                         }
1071                         if ( !BER_BVISNULL( &syncCookie.octet_str ) ) {
1072                                 slap_sync_cookie_free( &syncCookie_req, 0 );
1073                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
1074                                 slap_sync_cookie_free( &syncCookie, 0 );
1075                         }
1076                 }
1077                 ldap_msgfree( res );
1078                 res = NULL;
1079         }
1080
1081         if ( rc == -1 ) {
1082                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
1083                 err = rc;
1084         }
1085
1086 done:
1087         if ( err != LDAP_SUCCESS ) {
1088                 Debug( LDAP_DEBUG_ANY,
1089                         "do_syncrep2: %s (%d) %s\n",
1090                         si->si_ridtxt, err, ldap_err2string( err ) );
1091         }
1092
1093         slap_sync_cookie_free( &syncCookie, 0 );
1094         slap_sync_cookie_free( &syncCookie_req, 0 );
1095
1096         if ( res ) ldap_msgfree( res );
1097
1098         if ( rc && rc != LDAP_SYNC_REFRESH_REQUIRED && si->si_ld ) {
1099                 if ( si->si_conn_setup ) {
1100                         ber_socket_t s;
1101                         ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1102                         connection_client_stop( s );
1103                         si->si_conn_setup = 0;
1104                 }
1105                 ldap_unbind_ext( si->si_ld, NULL, NULL );
1106                 si->si_ld = NULL;
1107         }
1108
1109         return rc;
1110 }
1111
1112 static void *
1113 do_syncrepl(
1114         void    *ctx,
1115         void    *arg )
1116 {
1117         struct re_s* rtask = arg;
1118         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
1119         Connection conn = {0};
1120         OperationBuffer opbuf;
1121         Operation *op;
1122         int rc = LDAP_SUCCESS;
1123         int dostop = 0;
1124         ber_socket_t s;
1125         int i, defer = 1, fail = 0;
1126         Backend *be;
1127
1128         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl %s\n", si->si_ridtxt, 0, 0 );
1129
1130         if ( si == NULL )
1131                 return NULL;
1132
1133         ldap_pvt_thread_mutex_lock( &si->si_mutex );
1134
1135         switch( abs( si->si_type ) ) {
1136         case LDAP_SYNC_REFRESH_ONLY:
1137         case LDAP_SYNC_REFRESH_AND_PERSIST:
1138                 break;
1139         default:
1140                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1141                 return NULL;
1142         }
1143
1144         if ( slapd_shutdown ) {
1145                 if ( si->si_ld ) {
1146                         if ( si->si_conn_setup ) {
1147                                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1148                                 connection_client_stop( s );
1149                                 si->si_conn_setup = 0;
1150                         }
1151                         ldap_unbind_ext( si->si_ld, NULL, NULL );
1152                         si->si_ld = NULL;
1153                 }
1154                 ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1155                 return NULL;
1156         }
1157
1158         connection_fake_init( &conn, &opbuf, ctx );
1159         op = &opbuf.ob_op;
1160
1161         /* use global malloc for now */
1162         op->o_tmpmemctx = NULL;
1163         op->o_tmpmfuncs = &ch_mfuncs;
1164
1165         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1166         op->o_bd = be = si->si_be;
1167         op->o_dn = op->o_bd->be_rootdn;
1168         op->o_ndn = op->o_bd->be_rootndn;
1169         if ( !si->si_schemachecking )
1170                 op->o_no_schema_check = 1;
1171
1172         /* If we're glued, send writes through the glue parent */
1173         if ( !si->si_wbe ) {
1174                 if ( SLAP_GLUE_SUBORDINATE( be )) {
1175                         si->si_wbe = select_backend( &be->be_nsuffix[0], 1 );
1176                 } else {
1177                         si->si_wbe = be;
1178                 }
1179         }
1180
1181         /* Establish session, do search */
1182         if ( !si->si_ld ) {
1183                 si->si_refreshDelete = 0;
1184                 si->si_refreshPresent = 0;
1185                 rc = do_syncrep1( op, si );
1186         }
1187
1188 reload:
1189         /* Process results */
1190         if ( rc == LDAP_SUCCESS ) {
1191                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
1192
1193                 rc = do_syncrep2( op, si );
1194                 if ( rc == LDAP_SYNC_REFRESH_REQUIRED ) {
1195                         rc = ldap_sync_search( si, op->o_tmpmemctx );
1196                         goto reload;
1197                 }
1198
1199                 /* We got deleted while running on cn=config */
1200                 if ( !si->si_ctype ) {
1201                         if ( si->si_conn_setup )
1202                                 dostop = 1;
1203                         rc = -1;
1204                 }
1205
1206                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
1207                         /* If we succeeded, enable the connection for further listening.
1208                          * If we failed, tear down the connection and reschedule.
1209                          */
1210                         if ( rc == LDAP_SUCCESS ) {
1211                                 if ( si->si_conn_setup ) {
1212                                         connection_client_enable( s );
1213                                 } else {
1214                                         rc = connection_client_setup( s, do_syncrepl, arg );
1215                                         if ( rc == 0 )
1216                                                 si->si_conn_setup = 1;
1217                                 }
1218                         } else if ( si->si_conn_setup ) {
1219                                 dostop = 1;
1220                         }
1221                 } else {
1222                         if ( rc == -2 ) rc = 0;
1223                 }
1224         }
1225
1226         /* At this point, we have 4 cases:
1227          * 1) for any hard failure, give up and remove this task
1228          * 2) for ServerDown, reschedule this task to run
1229          * 3) for Refresh and Success, reschedule to run
1230          * 4) for Persist and Success, reschedule to defer
1231          */
1232         ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
1233
1234         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask ) ) {
1235                 ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
1236         }
1237
1238         if ( dostop ) {
1239                 connection_client_stop( s );
1240         }
1241
1242         if ( rc == LDAP_SUCCESS ) {
1243                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
1244                         defer = 0;
1245                 }
1246                 rtask->interval.tv_sec = si->si_interval;
1247                 ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
1248                 if ( si->si_retrynum ) {
1249                         for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
1250                                 si->si_retrynum[i] = si->si_retrynum_init[i];
1251                         }
1252                         si->si_retrynum[i] = RETRYNUM_TAIL;
1253                 }
1254         } else {
1255                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1256                         if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
1257                                 break;
1258                 }
1259
1260                 if ( !si->si_ctype
1261                         || !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
1262                         ldap_pvt_runqueue_remove( &slapd_rq, rtask );
1263                         fail = RETRYNUM_TAIL;
1264                 } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
1265                         if ( si->si_retrynum[i] > 0 )
1266                                 si->si_retrynum[i]--;
1267                         fail = si->si_retrynum[i];
1268                         rtask->interval.tv_sec = si->si_retryinterval[i];
1269                         ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
1270                         slap_wake_listener();
1271                 }
1272         }
1273
1274         ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
1275         ldap_pvt_thread_mutex_unlock( &si->si_mutex );
1276
1277         if ( rc ) {
1278                 if ( fail == RETRYNUM_TAIL ) {
1279                         Debug( LDAP_DEBUG_ANY,
1280                                 "do_syncrepl: rid %03d quitting\n",
1281                                 si->si_rid, 0, 0 );
1282                 } else if ( fail > 0 ) {
1283                         Debug( LDAP_DEBUG_ANY,
1284                                 "do_syncrepl: rid %03d retrying (%d retries left)\n",
1285                                 si->si_rid, fail, 0 );
1286                 } else {
1287                         Debug( LDAP_DEBUG_ANY,
1288                                 "do_syncrepl: rid %03d retrying\n",
1289                                 si->si_rid, 0, 0 );
1290                 }
1291         }
1292
1293         /* Do final delete cleanup */
1294         if ( !si->si_ctype ) {
1295                 cookie_state *cs = NULL;
1296                 syncinfo_t **sip;
1297
1298                 cs = be->be_syncinfo->si_cookieState;
1299                 for ( sip = &be->be_syncinfo; *sip != si; sip = &(*sip)->si_next );
1300                 *sip = si->si_next;
1301                 syncinfo_free( si, 0 );
1302                 if ( !be->be_syncinfo ) {
1303                         SLAP_DBFLAGS( be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
1304                         if ( cs ) {
1305                                 ch_free( cs->cs_sids );
1306                                 ber_bvarray_free( cs->cs_vals );
1307                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
1308                                 ch_free( cs );
1309                         }
1310                 }
1311         }
1312         return NULL;
1313 }
1314
1315 static slap_verbmasks modops[] = {
1316         { BER_BVC("add"), LDAP_REQ_ADD },
1317         { BER_BVC("delete"), LDAP_REQ_DELETE },
1318         { BER_BVC("modify"), LDAP_REQ_MODIFY },
1319         { BER_BVC("modrdn"), LDAP_REQ_MODRDN},
1320         { BER_BVNULL, 0 }
1321 };
1322
1323 static Modifications *
1324 syncrepl_accesslog_mods(
1325         syncinfo_t *si,
1326         struct berval *vals
1327 )
1328 {
1329         char *colon;
1330         const char *text;
1331         AttributeDescription *ad;
1332         struct berval bv, bv2;
1333         short op;
1334         Modifications *mod = NULL, *modlist = NULL, **modtail;
1335         int i;
1336
1337         modtail = &modlist;
1338
1339         for (i=0; !BER_BVISNULL( &vals[i] ); i++) {
1340                 ad = NULL;
1341                 bv = vals[i];
1342
1343                 colon = ber_bvchr( &bv, ':' );
1344                 if ( !colon ) {
1345                         /* Invalid */
1346                         continue;
1347                 }
1348
1349                 bv.bv_len = colon - bv.bv_val;
1350                 if ( slap_bv2ad( &bv, &ad, &text ) ) {
1351                         /* Invalid */
1352                         continue;
1353                 }
1354
1355                 /* Ignore dynamically generated attrs */
1356                 if ( ad->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1357                         continue;
1358                 }
1359
1360                 /* Ignore excluded attrs */
1361                 if ( ldap_charray_inlist( si->si_exattrs,
1362                         ad->ad_type->sat_cname.bv_val ) )
1363                 {
1364                         continue;
1365                 }
1366
1367                 switch(colon[1]) {
1368                 case '+':       op = LDAP_MOD_ADD; break;
1369                 case '-':       op = LDAP_MOD_DELETE; break;
1370                 case '=':       op = LDAP_MOD_REPLACE; break;
1371                 case '#':       op = LDAP_MOD_INCREMENT; break;
1372                 default:        continue;
1373                 }
1374
1375                 if ( !mod || ad != mod->sml_desc || op != mod->sml_op ) {
1376                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1377                         mod->sml_flags = 0;
1378                         mod->sml_op = op;
1379                         mod->sml_next = NULL;
1380                         mod->sml_desc = ad;
1381                         mod->sml_type = ad->ad_cname;
1382                         mod->sml_values = NULL;
1383                         mod->sml_nvalues = NULL;
1384
1385                         *modtail = mod;
1386                         modtail = &mod->sml_next;
1387                 }
1388                 if ( colon[2] == ' ' ) {
1389                         bv.bv_val = colon + 3;
1390                         bv.bv_len = vals[i].bv_len - ( bv.bv_val - vals[i].bv_val );
1391                         ber_dupbv( &bv2, &bv );
1392                         ber_bvarray_add( &mod->sml_values, &bv2 );
1393                 }
1394         }
1395         return modlist;
1396 }
1397
1398 static Modifications *
1399 syncrepl_changelog_mods(
1400         syncinfo_t *si,
1401         struct berval *vals
1402 )
1403 {
1404         return NULL;    /* FIXME */
1405 }
1406
1407 static int
1408 syncrepl_message_to_op(
1409         syncinfo_t      *si,
1410         Operation       *op,
1411         LDAPMessage     *msg
1412 )
1413 {
1414         BerElement      *ber = NULL;
1415         Modifications   *modlist = NULL;
1416         logschema *ls;
1417         SlapReply rs = { REP_RESULT };
1418         slap_callback cb = { NULL, null_callback, NULL, NULL };
1419
1420         const char      *text;
1421         char txtbuf[SLAP_TEXT_BUFLEN];
1422         size_t textlen = sizeof txtbuf;
1423
1424         struct berval   bdn, dn = BER_BVNULL, ndn;
1425         struct berval   bv, *bvals = NULL;
1426         struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
1427                 prdn = BER_BVNULL, nrdn = BER_BVNULL,
1428                 psup = BER_BVNULL, nsup = BER_BVNULL;
1429         int             rc, deleteOldRdn = 0, freeReqDn = 0;
1430
1431         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1432                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1433                         "Message type should be entry (%d)",
1434                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1435                 return -1;
1436         }
1437
1438         if ( si->si_syncdata == SYNCDATA_ACCESSLOG )
1439                 ls = &accesslog_sc;
1440         else
1441                 ls = &changelog_sc;
1442
1443         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1444
1445         if ( rc != LDAP_SUCCESS ) {
1446                 Debug( LDAP_DEBUG_ANY,
1447                         "syncrepl_message_to_op: %s dn get failed (%d)",
1448                         si->si_ridtxt, rc, 0 );
1449                 return rc;
1450         }
1451
1452         op->o_tag = LBER_DEFAULT;
1453         op->o_bd = si->si_wbe;
1454
1455         while (( rc = ldap_get_attribute_ber( si->si_ld, msg, ber, &bv, &bvals ) )
1456                 == LDAP_SUCCESS ) {
1457                 if ( bv.bv_val == NULL )
1458                         break;
1459
1460                 if ( !ber_bvstrcasecmp( &bv, &ls->ls_dn ) ) {
1461                         bdn = bvals[0];
1462                         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1463                         ber_dupbv( &op->o_req_dn, &dn );
1464                         ber_dupbv( &op->o_req_ndn, &ndn );
1465                         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1466                         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1467                         freeReqDn = 1;
1468                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req ) ) {
1469                         int i = verb_to_mask( bvals[0].bv_val, modops );
1470                         if ( i < 0 ) {
1471                                 Debug( LDAP_DEBUG_ANY,
1472                                         "syncrepl_message_to_op: %s unknown op %s",
1473                                         si->si_ridtxt, bvals[0].bv_val, 0 );
1474                                 ch_free( bvals );
1475                                 rc = -1;
1476                                 goto done;
1477                         }
1478                         op->o_tag = modops[i].mask;
1479                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_mod ) ) {
1480                         /* Parse attribute into modlist */
1481                         if ( si->si_syncdata == SYNCDATA_ACCESSLOG ) {
1482                                 modlist = syncrepl_accesslog_mods( si, bvals );
1483                         } else {
1484                                 modlist = syncrepl_changelog_mods( si, bvals );
1485                         }
1486                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newRdn ) ) {
1487                         rdn = bvals[0];
1488                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_delRdn ) ) {
1489                         if ( !ber_bvstrcasecmp( &slap_true_bv, bvals ) ) {
1490                                 deleteOldRdn = 1;
1491                         }
1492                 } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_newSup ) ) {
1493                         sup = bvals[0];
1494                 } else if ( !ber_bvstrcasecmp( &bv,
1495                         &slap_schema.si_ad_entryCSN->ad_cname ) )
1496                 {
1497                         slap_queue_csn( op, bvals );
1498                 }
1499                 ch_free( bvals );
1500         }
1501
1502         /* If we didn't get a mod type or a target DN, bail out */
1503         if ( op->o_tag == LBER_DEFAULT || BER_BVISNULL( &dn ) ) {
1504                 rc = -1;
1505                 goto done;
1506         }
1507
1508         op->o_callback = &cb;
1509         slap_op_time( &op->o_time, &op->o_tincr );
1510
1511         switch( op->o_tag ) {
1512         case LDAP_REQ_ADD:
1513         case LDAP_REQ_MODIFY:
1514                 /* If we didn't get required data, bail */
1515                 if ( !modlist ) goto done;
1516
1517                 rc = slap_mods_check( op, modlist, &text, txtbuf, textlen, NULL );
1518
1519                 if ( rc != LDAP_SUCCESS ) {
1520                         Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1521                                 "mods check (%s)\n",
1522                                 si->si_ridtxt, text, 0 );
1523                         goto done;
1524                 }
1525
1526                 if ( op->o_tag == LDAP_REQ_ADD ) {
1527                         Entry *e = entry_alloc();
1528                         op->ora_e = e;
1529                         op->ora_e->e_name = op->o_req_dn;
1530                         op->ora_e->e_nname = op->o_req_ndn;
1531                         freeReqDn = 0;
1532                         rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
1533                         if( rc != LDAP_SUCCESS ) {
1534                                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: %s "
1535                                 "mods2entry (%s)\n",
1536                                         si->si_ridtxt, text, 0 );
1537                         } else {
1538                                 rc = op->o_bd->be_add( op, &rs );
1539                                 Debug( LDAP_DEBUG_SYNC,
1540                                         "syncrepl_message_to_op: %s be_add %s (%d)\n",
1541                                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1542                         }
1543                         if ( e == op->ora_e )
1544                                 be_entry_release_w( op, op->ora_e );
1545                 } else {
1546                         op->orm_modlist = modlist;
1547                         op->o_bd = si->si_wbe;
1548                         rc = op->o_bd->be_modify( op, &rs );
1549                         modlist = op->orm_modlist;
1550                         Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1551                                 "syncrepl_message_to_op: %s be_modify %s (%d)\n",
1552                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
1553                         op->o_bd = si->si_be;
1554                 }
1555                 break;
1556         case LDAP_REQ_MODRDN:
1557                 if ( BER_BVISNULL( &rdn ) ) goto done;
1558
1559                 if ( rdnPretty( NULL, &rdn, &prdn, NULL ) ) {
1560                         goto done;
1561                 }
1562                 if ( rdnNormalize( 0, NULL, NULL, &rdn, &nrdn, NULL ) ) {
1563                         goto done;
1564                 }
1565                 if ( !BER_BVISNULL( &sup ) ) {
1566                         if ( dnPrettyNormal( NULL, &sup, &psup, &nsup, NULL ) ) {
1567                                 goto done;
1568                         }
1569                         op->orr_newSup = &psup;
1570                         op->orr_nnewSup = &nsup;
1571                 } else {
1572                         op->orr_newSup = NULL;
1573                         op->orr_nnewSup = NULL;
1574                 }
1575                 op->orr_newrdn = prdn;
1576                 op->orr_nnewrdn = nrdn;
1577                 op->orr_deleteoldrdn = deleteOldRdn;
1578                 op->orr_modlist = NULL;
1579                 if ( slap_modrdn2mods( op, &rs ) ) {
1580                         goto done;
1581                 }
1582
1583                 /* Append modlist for operational attrs */
1584                 {
1585                         Modifications *m;
1586
1587                         for ( m = op->orr_modlist; m->sml_next; m = m->sml_next )
1588                                 ;
1589                         m->sml_next = modlist;
1590                         modlist = NULL;
1591                 }
1592                 rc = op->o_bd->be_modrdn( op, &rs );
1593                 slap_mods_free( op->orr_modlist, 1 );
1594                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1595                         "syncrepl_message_to_op: %s be_modrdn %s (%d)\n",
1596                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1597                 break;
1598         case LDAP_REQ_DELETE:
1599                 rc = op->o_bd->be_delete( op, &rs );
1600                 Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
1601                         "syncrepl_message_to_op: %s be_delete %s (%d)\n",
1602                         si->si_ridtxt, op->o_req_dn.bv_val, rc );
1603                 break;
1604         }
1605 done:
1606         slap_graduate_commit_csn( op );
1607         op->o_bd = si->si_be;
1608         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
1609         BER_BVZERO( &op->o_csn );
1610         if ( modlist ) {
1611                 slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
1612         }
1613         if ( !BER_BVISNULL( &rdn ) ) {
1614                 if ( !BER_BVISNULL( &nsup ) ) {
1615                         ch_free( nsup.bv_val );
1616                 }
1617                 if ( !BER_BVISNULL( &psup ) ) {
1618                         ch_free( psup.bv_val );
1619                 }
1620                 if ( !BER_BVISNULL( &nrdn ) ) {
1621                         ch_free( nrdn.bv_val );
1622                 }
1623                 if ( !BER_BVISNULL( &prdn ) ) {
1624                         ch_free( prdn.bv_val );
1625                 }
1626         }
1627         if ( freeReqDn ) {
1628                 ch_free( op->o_req_ndn.bv_val );
1629                 ch_free( op->o_req_dn.bv_val );
1630         }
1631         ber_free( ber, 0 );
1632         return rc;
1633 }
1634
1635 static int
1636 syncrepl_message_to_entry(
1637         syncinfo_t      *si,
1638         Operation       *op,
1639         LDAPMessage     *msg,
1640         Modifications   **modlist,
1641         Entry                   **entry,
1642         int             syncstate
1643 )
1644 {
1645         Entry           *e = NULL;
1646         BerElement      *ber = NULL;
1647         Modifications   tmp;
1648         Modifications   *mod;
1649         Modifications   **modtail = modlist;
1650
1651         const char      *text;
1652         char txtbuf[SLAP_TEXT_BUFLEN];
1653         size_t textlen = sizeof txtbuf;
1654
1655         struct berval   bdn = BER_BVNULL, dn, ndn;
1656         int             rc, is_ctx;
1657
1658         *modlist = NULL;
1659
1660         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1661                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s "
1662                         "Message type should be entry (%d)",
1663                         si->si_ridtxt, ldap_msgtype( msg ), 0 );
1664                 return -1;
1665         }
1666
1667         op->o_tag = LDAP_REQ_ADD;
1668
1669         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1670         if ( rc != LDAP_SUCCESS ) {
1671                 Debug( LDAP_DEBUG_ANY,
1672                         "syncrepl_message_to_entry: %s dn get failed (%d)",
1673                         si->si_ridtxt, rc, 0 );
1674                 return rc;
1675         }
1676
1677         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1678                 /* NOTE: this could be done even before decoding the DN,
1679                  * although encoding errors wouldn't be detected */
1680                 rc = LDAP_SUCCESS;
1681                 goto done;
1682         }
1683
1684         if ( entry == NULL ) {
1685                 return -1;
1686         }
1687
1688         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1689         ber_dupbv( &op->o_req_dn, &dn );
1690         ber_dupbv( &op->o_req_ndn, &ndn );
1691         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1692         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1693
1694         is_ctx = dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] );
1695
1696         e = entry_alloc();
1697         e->e_name = op->o_req_dn;
1698         e->e_nname = op->o_req_ndn;
1699
1700         while ( ber_remaining( ber ) ) {
1701                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1702                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1703                 {
1704                         break;
1705                 }
1706
1707                 /* Drop all updates to the contextCSN of the context entry
1708                  * (ITS#4622, etc.)
1709                  */
1710                 if ( is_ctx && !strcasecmp( tmp.sml_type.bv_val,
1711                         slap_schema.si_ad_contextCSN->ad_cname.bv_val )) {
1712                         ber_bvarray_free( tmp.sml_values );
1713                         continue;
1714                 }
1715
1716                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ) );
1717
1718                 mod->sml_op = LDAP_MOD_REPLACE;
1719                 mod->sml_flags = 0;
1720                 mod->sml_next = NULL;
1721                 mod->sml_desc = NULL;
1722                 mod->sml_type = tmp.sml_type;
1723                 mod->sml_values = tmp.sml_values;
1724                 mod->sml_nvalues = NULL;
1725
1726                 *modtail = mod;
1727                 modtail = &mod->sml_next;
1728         }
1729
1730         if ( *modlist == NULL ) {
1731                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s no attributes\n",
1732                         si->si_ridtxt, 0, 0 );
1733                 rc = -1;
1734                 goto done;
1735         }
1736
1737         rc = slap_mods_check( op, *modlist, &text, txtbuf, textlen, NULL );
1738
1739         if ( rc != LDAP_SUCCESS ) {
1740                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods check (%s)\n",
1741                         si->si_ridtxt, text, 0 );
1742                 goto done;
1743         }
1744
1745         /* Strip out dynamically generated attrs */
1746         for ( modtail = modlist; *modtail ; ) {
1747                 mod = *modtail;
1748                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1749                         *modtail = mod->sml_next;
1750                         slap_mod_free( &mod->sml_mod, 0 );
1751                         ch_free( mod );
1752                 } else {
1753                         modtail = &mod->sml_next;
1754                 }
1755         }
1756
1757         /* Strip out attrs in exattrs list */
1758         for ( modtail = modlist; *modtail ; ) {
1759                 mod = *modtail;
1760                 if ( ldap_charray_inlist( si->si_exattrs,
1761                         mod->sml_desc->ad_type->sat_cname.bv_val ) )
1762                 {
1763                         *modtail = mod->sml_next;
1764                         slap_mod_free( &mod->sml_mod, 0 );
1765                         ch_free( mod );
1766                 } else {
1767                         modtail = &mod->sml_next;
1768                 }
1769         }
1770
1771         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1772         if( rc != LDAP_SUCCESS ) {
1773                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: %s mods2entry (%s)\n",
1774                         si->si_ridtxt, text, 0 );
1775         }
1776
1777 done:
1778         ber_free( ber, 0 );
1779         if ( rc != LDAP_SUCCESS ) {
1780                 if ( e ) {
1781                         entry_free( e );
1782                         e = NULL;
1783                 }
1784         }
1785         if ( entry )
1786                 *entry = e;
1787
1788         return rc;
1789 }
1790
1791 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
1792
1793 /* During a refresh, we may get an LDAP_SYNC_ADD for an already existing
1794  * entry if a previous refresh was interrupted before sending us a new
1795  * context state. We try to compare the new entry to the existing entry
1796  * and ignore the new entry if they are the same.
1797  *
1798  * Also, we may get an update where the entryDN has changed, due to
1799  * a ModDn on the provider. We detect this as well, so we can issue
1800  * the corresponding operation locally.
1801  *
1802  * In the case of a modify, we get a list of all the attributes
1803  * in the original entry. Rather than deleting the entry and re-adding it,
1804  * we issue a Modify request that deletes all the attributes and adds all
1805  * the new ones. This avoids the issue of trying to delete/add a non-leaf
1806  * entry.
1807  *
1808  * We otherwise distinguish ModDN from Modify; in the case of
1809  * a ModDN we just use the CSN, modifyTimestamp and modifiersName
1810  * operational attributes from the entry, and do a regular ModDN.
1811  */
1812 typedef struct dninfo {
1813         Entry *new_entry;
1814         struct berval dn;
1815         struct berval ndn;
1816         int renamed;    /* Was an existing entry renamed? */
1817         int delOldRDN;  /* Was old RDN deleted? */
1818         Modifications **modlist;        /* the modlist we received */
1819         Modifications *mods;    /* the modlist we compared */
1820 } dninfo;
1821
1822 static int
1823 syncrepl_entry(
1824         syncinfo_t* si,
1825         Operation *op,
1826         Entry* entry,
1827         Modifications** modlist,
1828         int syncstate,
1829         struct berval* syncUUID )
1830 {
1831         Backend *be = op->o_bd;
1832         slap_callback   cb = { NULL, NULL, NULL, NULL };
1833         struct berval   *syncuuid_bv = NULL;
1834         struct berval   syncUUID_strrep = BER_BVNULL;
1835
1836         SlapReply       rs_search = {REP_RESULT};
1837         SlapReply       rs_delete = {REP_RESULT};
1838         SlapReply       rs_add = {REP_RESULT};
1839         SlapReply       rs_modify = {REP_RESULT};
1840         Filter f = {0};
1841 #ifdef LDAP_COMP_MATCH
1842         AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
1843 #else
1844         AttributeAssertion ava = { NULL, BER_BVNULL };
1845 #endif
1846         int rc = LDAP_SUCCESS;
1847
1848         struct berval pdn = BER_BVNULL;
1849         dninfo dni = {0};
1850         int     retry = 1;
1851         int     freecsn = 1;
1852
1853         Debug( LDAP_DEBUG_SYNC,
1854                 "syncrepl_entry: %s LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_%s)\n",
1855                 si->si_ridtxt, syncrepl_state2str( syncstate ), 0 );
1856
1857         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ) ) {
1858                 if ( !si->si_refreshPresent ) {
1859                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1860                         if ( avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1861                                 syncuuid_cmp, avl_dup_error ) )
1862                         {
1863                                 ber_bvfree( syncuuid_bv );
1864                                 syncuuid_bv = NULL;
1865                         }
1866                 }
1867         }
1868
1869         if ( syncstate == LDAP_SYNC_PRESENT ) {
1870                 return 0;
1871         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1872                 if ( entry == NULL ) {
1873                         return 0;
1874                 }
1875         }
1876
1877         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1878         if ( syncstate != LDAP_SYNC_DELETE ) {
1879                 Attribute       *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryUUID );
1880
1881                 if ( a == NULL ) {
1882                         /* add if missing */
1883                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1884                                 &syncUUID_strrep, syncUUID );
1885
1886                 } else if ( !bvmatch( &a->a_nvals[0], syncUUID ) ) {
1887                         /* replace only if necessary */
1888                         if ( a->a_nvals != a->a_vals ) {
1889                                 ber_memfree( a->a_nvals[0].bv_val );
1890                                 ber_dupbv( &a->a_nvals[0], syncUUID );
1891                         }
1892                         ber_memfree( a->a_vals[0].bv_val );
1893                         ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
1894                 }
1895         }
1896
1897         f.f_choice = LDAP_FILTER_EQUALITY;
1898         f.f_ava = &ava;
1899         ava.aa_desc = slap_schema.si_ad_entryUUID;
1900         ava.aa_value = *syncUUID;
1901
1902         if ( syncuuid_bv ) {
1903                 Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: %s inserted UUID %s\n",
1904                         si->si_ridtxt, syncUUID_strrep.bv_val, 0 );
1905         }
1906         op->ors_filter = &f;
1907
1908         op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
1909         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1910                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1911         AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
1912         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
1913                 syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
1914         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
1915         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1916
1917         op->o_tag = LDAP_REQ_SEARCH;
1918         op->ors_scope = LDAP_SCOPE_SUBTREE;
1919         op->ors_deref = LDAP_DEREF_NEVER;
1920
1921         /* get the entry for this UUID */
1922         op->o_req_dn = si->si_base;
1923         op->o_req_ndn = si->si_base;
1924
1925         op->o_time = slap_get_time();
1926         op->ors_tlimit = SLAP_NO_LIMIT;
1927         op->ors_slimit = 1;
1928
1929         op->ors_attrs = slap_anlist_all_attributes;
1930         op->ors_attrsonly = 0;
1931
1932         /* set callback function */
1933         op->o_callback = &cb;
1934         cb.sc_response = dn_callback;
1935         cb.sc_private = &dni;
1936         dni.new_entry = entry;
1937         dni.modlist = modlist;
1938
1939         if ( limits_check( op, &rs_search ) == 0 ) {
1940                 rc = be->be_search( op, &rs_search );
1941                 Debug( LDAP_DEBUG_SYNC,
1942                                 "syncrepl_entry: %s be_search (%d)\n",
1943                                 si->si_ridtxt, rc, 0 );
1944         }
1945
1946         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1947                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1948         }
1949
1950         cb.sc_response = null_callback;
1951         cb.sc_private = si;
1952
1953         if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
1954                 Debug( LDAP_DEBUG_SYNC,
1955                                 "syncrepl_entry: %s %s\n",
1956                                 si->si_ridtxt, entry->e_name.bv_val, 0 );
1957         } else {
1958                 Debug( LDAP_DEBUG_SYNC,
1959                                 "syncrepl_entry: %s %s\n",
1960                                 si->si_ridtxt, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
1961         }
1962
1963         assert( BER_BVISNULL( &op->o_csn ) );
1964
1965         slap_op_time( &op->o_time, &op->o_tincr );
1966         switch ( syncstate ) {
1967         case LDAP_SYNC_ADD:
1968         case LDAP_SYNC_MODIFY:
1969                 {
1970                         Attribute *a = attr_find( entry->e_attrs, slap_schema.si_ad_entryCSN );
1971                         if ( a ) {
1972                                 /* FIXME: op->o_csn is assumed to be
1973                                  * on the thread's slab; this needs
1974                                  * to be cleared ASAP.
1975                                  * What happens if already present?
1976                                  */
1977                                 assert( BER_BVISNULL( &op->o_csn ) );
1978                                 op->o_csn = a->a_vals[0];
1979                                 freecsn = 0;
1980                         }
1981                 }
1982 retry_add:;
1983                 if ( BER_BVISNULL( &dni.dn ) ) {
1984
1985                         op->o_req_dn = entry->e_name;
1986                         op->o_req_ndn = entry->e_nname;
1987                         op->o_tag = LDAP_REQ_ADD;
1988                         op->ora_e = entry;
1989                         op->o_bd = si->si_wbe;
1990
1991                         rc = op->o_bd->be_add( op, &rs_add );
1992                         Debug( LDAP_DEBUG_SYNC,
1993                                         "syncrepl_entry: %s be_add (%d)\n",
1994                                         si->si_ridtxt, rc, 0 );
1995                         switch ( rs_add.sr_err ) {
1996                         case LDAP_SUCCESS:
1997                                 if ( op->ora_e == entry ) {
1998                                         be_entry_release_w( op, entry );
1999                                 }
2000                                 entry = NULL;
2001                                 break;
2002
2003                         case LDAP_REFERRAL:
2004                         /* we assume that LDAP_NO_SUCH_OBJECT is returned
2005                          * only if the suffix entry is not present */
2006                         case LDAP_NO_SUCH_OBJECT:
2007                                 rc = syncrepl_add_glue( op, entry );
2008                                 entry = NULL;
2009                                 break;
2010
2011                         /* if an entry was added via syncrepl_add_glue(),
2012                          * it likely has no entryUUID, so the previous
2013                          * be_search() doesn't find it.  In this case,
2014                          * give syncrepl a chance to modify it. Also
2015                          * allow for entries that were recreated with the
2016                          * same DN but a different entryUUID.
2017                          */
2018                         case LDAP_ALREADY_EXISTS:
2019                                 if ( retry ) {
2020                                         Operation       op2 = *op;
2021                                         SlapReply       rs2 = { 0 };
2022                                         slap_callback   cb2 = { 0 };
2023
2024                                         op2.o_bd = be;
2025                                         op2.o_tag = LDAP_REQ_SEARCH;
2026                                         op2.o_req_dn = entry->e_name;
2027                                         op2.o_req_ndn = entry->e_nname;
2028                                         op2.ors_scope = LDAP_SCOPE_BASE;
2029                                         op2.ors_deref = LDAP_DEREF_NEVER;
2030                                         op2.ors_attrs = slap_anlist_all_attributes;
2031                                         op2.ors_attrsonly = 0;
2032                                         op2.ors_limit = NULL;
2033                                         op2.ors_slimit = 1;
2034                                         op2.ors_tlimit = SLAP_NO_LIMIT;
2035
2036                                         f.f_choice = LDAP_FILTER_PRESENT;
2037                                         f.f_desc = slap_schema.si_ad_objectClass;
2038                                         op2.ors_filter = &f;
2039                                         op2.ors_filterstr = generic_filterstr;
2040
2041                                         op2.o_callback = &cb2;
2042                                         cb2.sc_response = dn_callback;
2043                                         cb2.sc_private = &dni;
2044
2045                                         rc = be->be_search( &op2, &rs2 );
2046                                         if ( rc ) goto done;
2047
2048                                         retry = 0;
2049                                         slap_op_time( &op->o_time, &op->o_tincr );
2050                                         goto retry_add;
2051                                 }
2052                                 /* FALLTHRU */
2053
2054                         default:
2055                                 Debug( LDAP_DEBUG_ANY,
2056                                         "syncrepl_entry: %s be_add failed (%d)\n",
2057                                         si->si_ridtxt, rs_add.sr_err, 0 );
2058                                 break;
2059                         }
2060                         op->o_bd = be;
2061                         goto done;
2062                 }
2063                 /* FALLTHRU */
2064                 op->o_req_dn = dni.dn;
2065                 op->o_req_ndn = dni.ndn;
2066                 if ( dni.renamed ) {
2067                         struct berval noldp, newp, nnewp;
2068
2069                         op->o_tag = LDAP_REQ_MODRDN;
2070                         dnRdn( &entry->e_name, &op->orr_newrdn );
2071                         dnRdn( &entry->e_nname, &op->orr_nnewrdn );
2072
2073                         dnParent( &dni.ndn, &noldp );
2074                         dnParent( &entry->e_nname, &nnewp );
2075                         if ( !dn_match( &noldp, &nnewp ) ) {
2076                                 dnParent( &entry->e_name, &newp );
2077                                 op->orr_newSup = &newp;
2078                                 op->orr_nnewSup = &nnewp;
2079                         } else {
2080                                 op->orr_newSup = NULL;
2081                                 op->orr_nnewSup = NULL;
2082                         }
2083                         op->orr_deleteoldrdn = dni.delOldRDN;
2084                         op->orr_modlist = NULL;
2085                         if ( ( rc = slap_modrdn2mods( op, &rs_modify ) ) ) {
2086                                 goto done;
2087                         }
2088
2089                         /* RDNs must be NUL-terminated for back-ldap */
2090                         noldp = op->orr_newrdn;
2091                         ber_dupbv_x( &op->orr_newrdn, &noldp, op->o_tmpmemctx );
2092                         noldp = op->orr_nnewrdn;
2093                         ber_dupbv_x( &op->orr_nnewrdn, &noldp, op->o_tmpmemctx );
2094
2095                         /* Setup opattrs too */
2096                         {
2097                                 static AttributeDescription *nullattr = NULL;
2098                                 static AttributeDescription **const opattrs[] = {
2099                                         &slap_schema.si_ad_entryCSN,
2100                                         &slap_schema.si_ad_modifiersName,
2101                                         &slap_schema.si_ad_modifyTimestamp,
2102                                         &nullattr
2103                                 };
2104                                 AttributeDescription *opattr;
2105                                 Modifications *mod, **modtail, **ml;
2106                                 int i;
2107
2108                                 for ( mod = op->orr_modlist;
2109                                         mod->sml_next;
2110                                         mod = mod->sml_next )
2111                                         ;
2112                                 modtail = &mod->sml_next;
2113
2114                                 /* pull mod off incoming modlist, append to orr_modlist */
2115                                 for ( i = 0; (opattr = *opattrs[i]) != NULL; i++ ) {
2116                                         for ( ml = modlist; *ml; ml = &(*ml)->sml_next )
2117                                         {
2118                                                 if ( (*ml)->sml_desc == opattr ) {
2119                                                         mod = *ml;
2120                                                         *ml = mod->sml_next;
2121                                                         mod->sml_next = NULL;
2122                                                         *modtail = mod;
2123                                                         modtail = &mod->sml_next;
2124                                                         break;
2125                                                 }
2126                                         }
2127                                 }
2128                         }
2129                         op->o_bd = si->si_wbe;
2130                         rc = op->o_bd->be_modrdn( op, &rs_modify );
2131                         op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
2132                         op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
2133
2134                         slap_mods_free( op->orr_modlist, 1 );
2135                         Debug( LDAP_DEBUG_SYNC,
2136                                         "syncrepl_entry: %s be_modrdn (%d)\n",
2137                                         si->si_ridtxt, rc, 0 );
2138                         op->o_bd = be;
2139                         goto done;
2140                 }
2141                 if ( dni.mods ) {
2142                         op->o_tag = LDAP_REQ_MODIFY;
2143                         op->orm_modlist = dni.mods;
2144                         op->orm_no_opattrs = 1;
2145                         op->o_bd = si->si_wbe;
2146
2147                         rc = op->o_bd->be_modify( op, &rs_modify );
2148                         slap_mods_free( op->orm_modlist, 1 );
2149                         op->orm_no_opattrs = 0;
2150                         Debug( LDAP_DEBUG_SYNC,
2151                                         "syncrepl_entry: %s be_modify (%d)\n",
2152                                         si->si_ridtxt, rc, 0 );
2153                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
2154                                 Debug( LDAP_DEBUG_ANY,
2155                                         "syncrepl_entry: %s be_modify failed (%d)\n",
2156                                         si->si_ridtxt, rs_modify.sr_err, 0 );
2157                         }
2158                         op->o_bd = be;
2159                 } else {
2160                         Debug( LDAP_DEBUG_SYNC,
2161                                         "syncrepl_entry: %s entry unchanged, ignored (%s)\n",
2162                                         si->si_ridtxt, op->o_req_dn.bv_val, 0 );
2163                 }
2164                 goto done;
2165         case LDAP_SYNC_DELETE :
2166                 if ( !BER_BVISNULL( &dni.dn ) ) {
2167                         op->o_req_dn = dni.dn;
2168                         op->o_req_ndn = dni.ndn;
2169                         op->o_tag = LDAP_REQ_DELETE;
2170                         op->o_bd = si->si_wbe;
2171                         rc = op->o_bd->be_delete( op, &rs_delete );
2172                         Debug( LDAP_DEBUG_SYNC,
2173                                         "syncrepl_entry: %s be_delete (%d)\n",
2174                                         si->si_ridtxt, rc, 0 );
2175
2176                         while ( rs_delete.sr_err == LDAP_SUCCESS
2177                                 && op->o_delete_glue_parent ) {
2178                                 op->o_delete_glue_parent = 0;
2179                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2180                                         slap_callback cb = { NULL };
2181                                         cb.sc_response = slap_null_cb;
2182                                         dnParent( &op->o_req_ndn, &pdn );
2183                                         op->o_req_dn = pdn;
2184                                         op->o_req_ndn = pdn;
2185                                         op->o_callback = &cb;
2186                                         op->o_bd->be_delete( op, &rs_delete );
2187                                 } else {
2188                                         break;
2189                                 }
2190                         }
2191                         op->o_bd = be;
2192                 }
2193                 goto done;
2194
2195         default :
2196                 Debug( LDAP_DEBUG_ANY,
2197                         "syncrepl_entry: %s unknown syncstate\n", si->si_ridtxt, 0, 0 );
2198                 goto done;
2199         }
2200
2201 done:
2202         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
2203                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
2204                 BER_BVZERO( &syncUUID_strrep );
2205         }
2206         if ( !BER_BVISNULL( &dni.ndn ) ) {
2207                 op->o_tmpfree( dni.ndn.bv_val, op->o_tmpmemctx );
2208         }
2209         if ( !BER_BVISNULL( &dni.dn ) ) {
2210                 op->o_tmpfree( dni.dn.bv_val, op->o_tmpmemctx );
2211         }
2212         if ( entry ) {
2213                 entry_free( entry );
2214         }
2215         if ( !BER_BVISNULL( &op->o_csn ) && freecsn ) {
2216                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2217         }
2218         BER_BVZERO( &op->o_csn );
2219         return rc;
2220 }
2221
2222 static struct berval gcbva[] = {
2223         BER_BVC("top"),
2224         BER_BVC("glue"),
2225         BER_BVNULL
2226 };
2227
2228 #define NP_DELETE_ONE   2
2229
2230 static void
2231 syncrepl_del_nonpresent(
2232         Operation *op,
2233         syncinfo_t *si,
2234         BerVarray uuids,
2235         struct berval *cookiecsn )
2236 {
2237         Backend* be = op->o_bd;
2238         slap_callback   cb = { NULL };
2239         SlapReply       rs_search = {REP_RESULT};
2240         SlapReply       rs_delete = {REP_RESULT};
2241         SlapReply       rs_modify = {REP_RESULT};
2242         struct nonpresent_entry *np_list, *np_prev;
2243         int rc;
2244         AttributeName   an[2];
2245
2246         struct berval pdn = BER_BVNULL;
2247         struct berval csn;
2248
2249         op->o_req_dn = si->si_base;
2250         op->o_req_ndn = si->si_base;
2251
2252         cb.sc_response = nonpresent_callback;
2253         cb.sc_private = si;
2254
2255         op->o_callback = &cb;
2256         op->o_tag = LDAP_REQ_SEARCH;
2257         op->ors_scope = si->si_scope;
2258         op->ors_deref = LDAP_DEREF_NEVER;
2259         op->o_time = slap_get_time();
2260         op->ors_tlimit = SLAP_NO_LIMIT;
2261
2262
2263         if ( uuids ) {
2264                 Filter uf;
2265 #ifdef LDAP_COMP_MATCH
2266                 AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
2267 #else
2268                 AttributeAssertion eq = { NULL, BER_BVNULL };
2269 #endif
2270                 int i;
2271
2272                 op->ors_attrsonly = 1;
2273                 op->ors_attrs = slap_anlist_no_attrs;
2274                 op->ors_limit = NULL;
2275                 op->ors_filter = &uf;
2276
2277                 uf.f_ava = &eq;
2278                 uf.f_av_desc = slap_schema.si_ad_entryUUID;
2279                 uf.f_next = NULL;
2280                 uf.f_choice = LDAP_FILTER_EQUALITY;
2281                 si->si_refreshDelete |= NP_DELETE_ONE;
2282
2283                 for (i=0; uuids[i].bv_val; i++) {
2284                         op->ors_slimit = 1;
2285                         slap_uuidstr_from_normalized( &uf.f_av_value, &uuids[i],
2286                                 op->o_tmpmemctx );
2287                         filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
2288                         op->o_tmpfree( uf.f_av_value.bv_val, op->o_tmpmemctx );
2289                         uf.f_av_value = uuids[i];
2290                         rc = be->be_search( op, &rs_search );
2291                         op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
2292                 }
2293                 si->si_refreshDelete ^= NP_DELETE_ONE;
2294         } else {
2295                 memset( &an[0], 0, 2 * sizeof( AttributeName ) );
2296                 an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
2297                 an[0].an_desc = slap_schema.si_ad_entryUUID;
2298                 op->ors_attrs = an;
2299                 op->ors_slimit = SLAP_NO_LIMIT;
2300                 op->ors_attrsonly = 0;
2301                 op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
2302                 op->ors_filterstr = si->si_filterstr;
2303                 op->o_nocaching = 1;
2304
2305                 if ( limits_check( op, &rs_search ) == 0 ) {
2306                         rc = be->be_search( op, &rs_search );
2307                 }
2308                 if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
2309         }
2310
2311         op->o_nocaching = 0;
2312
2313         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
2314
2315                 if ( cookiecsn && !BER_BVISNULL( cookiecsn ) ) {
2316                         csn = *cookiecsn;
2317                 } else {
2318                         csn = si->si_syncCookie.ctxcsn[0];
2319                 }
2320
2321                 op->o_bd = si->si_wbe;
2322                 slap_queue_csn( op, &csn );
2323
2324                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
2325                 while ( np_list != NULL ) {
2326                         LDAP_LIST_REMOVE( np_list, npe_link );
2327                         np_prev = np_list;
2328                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
2329                         op->o_tag = LDAP_REQ_DELETE;
2330                         op->o_callback = &cb;
2331                         cb.sc_response = null_callback;
2332                         cb.sc_private = si;
2333                         op->o_req_dn = *np_prev->npe_name;
2334                         op->o_req_ndn = *np_prev->npe_nname;
2335                         rc = op->o_bd->be_delete( op, &rs_delete );
2336                         Debug( LDAP_DEBUG_SYNC,
2337                                 "syncrepl_del_nonpresent: %s be_delete %s (%d)\n",
2338                                 si->si_ridtxt, op->o_req_dn.bv_val, rc );
2339
2340                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
2341                                 Modifications mod1, mod2;
2342                                 mod1.sml_op = LDAP_MOD_REPLACE;
2343                                 mod1.sml_flags = 0;
2344                                 mod1.sml_desc = slap_schema.si_ad_objectClass;
2345                                 mod1.sml_type = mod1.sml_desc->ad_cname;
2346                                 mod1.sml_values = &gcbva[0];
2347                                 mod1.sml_nvalues = NULL;
2348                                 mod1.sml_next = &mod2;
2349
2350                                 mod2.sml_op = LDAP_MOD_REPLACE;
2351                                 mod2.sml_flags = 0;
2352                                 mod2.sml_desc = slap_schema.si_ad_structuralObjectClass;
2353                                 mod2.sml_type = mod2.sml_desc->ad_cname;
2354                                 mod2.sml_values = &gcbva[1];
2355                                 mod2.sml_nvalues = NULL;
2356                                 mod2.sml_next = NULL;
2357
2358                                 op->o_tag = LDAP_REQ_MODIFY;
2359                                 op->orm_modlist = &mod1;
2360
2361                                 rc = op->o_bd->be_modify( op, &rs_modify );
2362                                 if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
2363                         }
2364
2365                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
2366                                         op->o_delete_glue_parent ) {
2367                                 op->o_delete_glue_parent = 0;
2368                                 if ( !be_issuffix( be, &op->o_req_ndn ) ) {
2369                                         slap_callback cb = { NULL };
2370                                         cb.sc_response = slap_null_cb;
2371                                         dnParent( &op->o_req_ndn, &pdn );
2372                                         op->o_req_dn = pdn;
2373                                         op->o_req_ndn = pdn;
2374                                         op->o_callback = &cb;
2375                                         /* give it a root privil ? */
2376                                         op->o_bd->be_delete( op, &rs_delete );
2377                                 } else {
2378                                         break;
2379                                 }
2380                         }
2381
2382                         op->o_delete_glue_parent = 0;
2383
2384                         ber_bvfree( np_prev->npe_name );
2385                         ber_bvfree( np_prev->npe_nname );
2386                         ch_free( np_prev );
2387
2388                         if ( slapd_shutdown ) {
2389                                 break;
2390                         }
2391                 }
2392
2393                 slap_graduate_commit_csn( op );
2394                 op->o_bd = be;
2395
2396                 op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2397                 BER_BVZERO( &op->o_csn );
2398         }
2399
2400         return;
2401 }
2402
2403 int
2404 syncrepl_add_glue(
2405         Operation* op,
2406         Entry *e )
2407 {
2408         Backend *be = op->o_bd;
2409         slap_callback cb = { NULL };
2410         Attribute       *a;
2411         int     rc;
2412         int suffrdns;
2413         int i;
2414         struct berval dn = BER_BVNULL;
2415         struct berval ndn = BER_BVNULL;
2416         Entry   *glue;
2417         SlapReply       rs_add = {REP_RESULT};
2418         struct berval   ptr, nptr;
2419         char            *comma;
2420
2421         op->o_tag = LDAP_REQ_ADD;
2422         op->o_callback = &cb;
2423         cb.sc_response = null_callback;
2424         cb.sc_private = NULL;
2425
2426         dn = e->e_name;
2427         ndn = e->e_nname;
2428
2429         /* count RDNs in suffix */
2430         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
2431                 for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
2432                         comma++;
2433                         ptr.bv_len -= comma - ptr.bv_val;
2434                         ptr.bv_val = comma;
2435                         i++;
2436                 }
2437                 suffrdns = i;
2438         } else {
2439                 /* suffix is "" */
2440                 suffrdns = 0;
2441         }
2442
2443         /* Start with BE suffix */
2444         ptr = dn;
2445         for ( i = 0; i < suffrdns; i++ ) {
2446                 comma = ber_bvrchr( &ptr, ',' );
2447                 if ( comma != NULL ) {
2448                         ptr.bv_len = comma - ptr.bv_val;
2449                 } else {
2450                         ptr.bv_len = 0;
2451                         break;
2452                 }
2453         }
2454
2455         if ( !BER_BVISEMPTY( &ptr ) ) {
2456                 dn.bv_len -= ptr.bv_len + 1;
2457                 dn.bv_val += ptr.bv_len + 1;
2458         }
2459
2460         /* the normalizedDNs are always the same length, no counting
2461          * required.
2462          */
2463         nptr = ndn;
2464         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
2465                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
2466                 ndn.bv_len = be->be_nsuffix[0].bv_len;
2467
2468                 nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
2469
2470         } else {
2471                 nptr.bv_len = 0;
2472         }
2473
2474         while ( ndn.bv_val > e->e_nname.bv_val ) {
2475                 glue = entry_alloc();
2476                 ber_dupbv( &glue->e_name, &dn );
2477                 ber_dupbv( &glue->e_nname, &ndn );
2478
2479                 a = attr_alloc( slap_schema.si_ad_objectClass );
2480
2481                 a->a_vals = ch_calloc( 3, sizeof( struct berval ) );
2482                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
2483                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
2484                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
2485
2486                 a->a_nvals = a->a_vals;
2487
2488                 a->a_next = glue->e_attrs;
2489                 glue->e_attrs = a;
2490
2491                 a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
2492
2493                 a->a_vals = ch_calloc( 2, sizeof( struct berval ) );
2494                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
2495                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
2496
2497                 a->a_nvals = a->a_vals;
2498
2499                 a->a_next = glue->e_attrs;
2500                 glue->e_attrs = a;
2501
2502                 op->o_req_dn = glue->e_name;
2503                 op->o_req_ndn = glue->e_nname;
2504                 op->ora_e = glue;
2505                 rc = be->be_add ( op, &rs_add );
2506                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
2507                         if ( op->ora_e == glue )
2508                                 be_entry_release_w( op, glue );
2509                 } else {
2510                 /* incl. ALREADY EXIST */
2511                         entry_free( glue );
2512                         if ( rs_add.sr_err != LDAP_ALREADY_EXISTS ) {
2513                                 entry_free( e );
2514                                 return rc;
2515                         }
2516                 }
2517
2518                 /* Move to next child */
2519                 comma = ber_bvrchr( &ptr, ',' );
2520                 if ( comma == NULL ) {
2521                         break;
2522                 }
2523                 ptr.bv_len = comma - ptr.bv_val;
2524
2525                 dn.bv_val = ++comma;
2526                 dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
2527
2528                 comma = ber_bvrchr( &nptr, ',' );
2529                 assert( comma != NULL );
2530                 nptr.bv_len = comma - nptr.bv_val;
2531
2532                 ndn.bv_val = ++comma;
2533                 ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
2534         }
2535
2536         op->o_req_dn = e->e_name;
2537         op->o_req_ndn = e->e_nname;
2538         op->ora_e = e;
2539         rc = be->be_add ( op, &rs_add );
2540         if ( rs_add.sr_err == LDAP_SUCCESS ) {
2541                 if ( op->ora_e == e )
2542                         be_entry_release_w( op, e );
2543         } else {
2544                 entry_free( e );
2545         }
2546
2547         return rc;
2548 }
2549
2550 static int
2551 syncrepl_updateCookie(
2552         syncinfo_t *si,
2553         Operation *op,
2554         struct berval *pdn,
2555         struct sync_cookie *syncCookie )
2556 {
2557         Backend *be = op->o_bd;
2558         Modifications mod[2];
2559         struct berval first = BER_BVNULL;
2560
2561         int rc, i, j, len;
2562
2563         slap_callback cb = { NULL };
2564         SlapReply       rs_modify = {REP_RESULT};
2565
2566         mod[0].sml_op = LDAP_MOD_DELETE;
2567         mod[0].sml_desc = slap_schema.si_ad_contextCSN;
2568         mod[0].sml_type = mod[0].sml_desc->ad_cname;
2569         mod[0].sml_values = NULL;
2570         mod[0].sml_nvalues = NULL;
2571         mod[0].sml_next = &mod[1];
2572
2573         mod[1].sml_op = LDAP_MOD_ADD;
2574         mod[1].sml_desc = slap_schema.si_ad_contextCSN;
2575         mod[1].sml_type = mod[0].sml_desc->ad_cname;
2576         mod[1].sml_values = NULL;
2577         mod[1].sml_nvalues = NULL;
2578         mod[1].sml_next = NULL;
2579
2580         ldap_pvt_thread_mutex_lock( &si->si_cookieState->cs_mutex );
2581
2582         for ( i=0; i<syncCookie->numcsns; i++ ) {
2583                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2584                         if ( syncCookie->sids[i] != si->si_cookieState->cs_sids[j] )
2585                                 continue;
2586                         len = syncCookie->ctxcsn[i].bv_len;
2587                         if ( len > si->si_cookieState->cs_vals[j].bv_len )
2588                                 len = si->si_cookieState->cs_vals[j].bv_len;
2589                         if ( memcmp( syncCookie->ctxcsn[i].bv_val,
2590                                 si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
2591                                 ber_bvarray_add_x( &mod[0].sml_values,
2592                                         &si->si_cookieState->cs_vals[j], op->o_tmpmemctx );
2593                                 ber_bvarray_add_x( &mod[1].sml_values,
2594                                         &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2595                                 if ( BER_BVISNULL( &first ))
2596                                         first = syncCookie->ctxcsn[i];
2597                         }
2598                         break;
2599                 }
2600                 /* there was no match for this SID, it's a new CSN */
2601                 if ( j == si->si_cookieState->cs_num ) {
2602                         ber_bvarray_add_x( &mod[1].sml_values,
2603                                 &syncCookie->ctxcsn[i], op->o_tmpmemctx );
2604                         if ( BER_BVISNULL( &first ))
2605                                 first = syncCookie->ctxcsn[i];
2606                 }
2607         }
2608         /* Should never happen, ITS#5065 */
2609         if ( BER_BVISNULL( &first )) {
2610                 ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2611                 return 0;
2612         }
2613         op->o_bd = si->si_wbe;
2614         slap_queue_csn( op, &first );
2615
2616         op->o_tag = LDAP_REQ_MODIFY;
2617
2618         cb.sc_response = null_callback;
2619         cb.sc_private = si;
2620
2621         op->o_callback = &cb;
2622         op->o_req_dn = op->o_bd->be_suffix[0];
2623         op->o_req_ndn = op->o_bd->be_nsuffix[0];
2624
2625         /* update contextCSN */
2626         op->o_msgid = SLAP_SYNC_UPDATE_MSGID;
2627
2628         if ( mod[0].sml_values )
2629                 op->orm_modlist = mod;
2630         else
2631                 op->orm_modlist = &mod[1];
2632
2633         op->orm_no_opattrs = 1;
2634         rc = op->o_bd->be_modify( op, &rs_modify );
2635         op->orm_no_opattrs = 0;
2636         op->o_msgid = 0;
2637
2638         if ( rs_modify.sr_err == LDAP_SUCCESS ) {
2639                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
2640                 slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
2641                 /* If we replaced any old values */
2642                 if ( mod[0].sml_values ) {
2643                         for ( i=0; !BER_BVISNULL( &mod[0].sml_values[i] ); i++ ) {
2644                                 for ( j=0; j<si->si_cookieState->cs_num; j++ ) {
2645                                         if ( mod[0].sml_values[i].bv_val !=
2646                                                 si->si_cookieState->cs_vals[j].bv_val )
2647                                                 continue;
2648                                         ber_bvreplace( &si->si_cookieState->cs_vals[j],
2649                                                 &mod[1].sml_values[i] );
2650                                         break;
2651                                 }
2652                         }
2653                 } else {
2654                         /* Else we just added */
2655                         si->si_cookieState->cs_num += syncCookie->numcsns;
2656                         value_add( &si->si_cookieState->cs_vals, syncCookie->ctxcsn );
2657                         free( si->si_cookieState->cs_sids );
2658                         si->si_cookieState->cs_sids = slap_parse_csn_sids(
2659                                 si->si_cookieState->cs_vals, si->si_cookieState->cs_num, NULL );
2660                 }
2661
2662                 si->si_cookieState->cs_age++;
2663                 si->si_cookieAge = si->si_cookieState->cs_age;
2664         } else {
2665                 Debug( LDAP_DEBUG_ANY,
2666                         "syncrepl_updateCookie: %s be_modify failed (%d)\n",
2667                         si->si_ridtxt, rs_modify.sr_err, 0 );
2668         }
2669         ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
2670
2671         slap_graduate_commit_csn( op );
2672         op->o_bd = be;
2673         op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
2674         BER_BVZERO( &op->o_csn );
2675         if ( mod[1].sml_next ) slap_mods_free( mod[1].sml_next, 1 );
2676         op->o_tmpfree( mod[1].sml_values, op->o_tmpmemctx );
2677         op->o_tmpfree( mod[0].sml_values, op->o_tmpmemctx );
2678
2679         return rc;
2680 }
2681
2682 static void
2683 attr_cmp( Operation *op, Attribute *old, Attribute *new,
2684         Modifications ***mret, Modifications ***mcur )
2685 {
2686         int i, j;
2687         Modifications *mod, **modtail;
2688
2689         modtail = *mret;
2690
2691         if ( old ) {
2692                 int n, o, nn, no;
2693                 struct berval **adds, **dels;
2694                 /* count old and new */
2695                 for ( o=0; old->a_vals[o].bv_val; o++ ) ;
2696                 for ( n=0; new->a_vals[n].bv_val; n++ ) ;
2697
2698                 adds = op->o_tmpalloc( sizeof(struct berval *) * n, op->o_tmpmemctx );
2699                 dels = op->o_tmpalloc( sizeof(struct berval *) * o, op->o_tmpmemctx );
2700
2701                 for ( i=0; i<o; i++ ) dels[i] = &old->a_vals[i];
2702                 for ( i=0; i<n; i++ ) adds[i] = &new->a_vals[i];
2703
2704                 nn = n; no = o;
2705
2706                 for ( i=0; i<o; i++ ) {
2707                         for ( j=0; j<n; j++ ) {
2708                                 if ( !adds[j] )
2709                                         continue;
2710                                 if ( bvmatch( dels[i], adds[j] ) ) {
2711                                         no--;
2712                                         nn--;
2713                                         adds[j] = NULL;
2714                                         dels[i] = NULL;
2715                                         break;
2716                                 }
2717                         }
2718                 }
2719
2720                 i = j;
2721                 /* all old values were deleted, just use the replace op */
2722                 if ( no == o ) {
2723                         i = j-1;
2724                 } else if ( no ) {
2725                 /* delete some values */
2726                         mod = ch_malloc( sizeof( Modifications ) );
2727                         mod->sml_op = LDAP_MOD_DELETE;
2728                         mod->sml_flags = 0;
2729                         mod->sml_desc = old->a_desc;
2730                         mod->sml_type = mod->sml_desc->ad_cname;
2731                         mod->sml_values = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2732                         if ( old->a_vals != old->a_nvals ) {
2733                                 mod->sml_nvalues = ch_malloc( ( no + 1 ) * sizeof(struct berval) );
2734                         } else {
2735                                 mod->sml_nvalues = NULL;
2736                         }
2737                         j = 0;
2738                         for ( i = 0; i < o; i++ ) {
2739                                 if ( !dels[i] ) continue;
2740                                 ber_dupbv( &mod->sml_values[j], &old->a_vals[i] );
2741                                 if ( mod->sml_nvalues ) {
2742                                         ber_dupbv( &mod->sml_nvalues[j], &old->a_nvals[i] );
2743                                 }
2744                                 j++;
2745                         }
2746                         BER_BVZERO( &mod->sml_values[j] );
2747                         if ( mod->sml_nvalues ) {
2748                                 BER_BVZERO( &mod->sml_nvalues[j] );
2749                         }
2750                         *modtail = mod;
2751                         modtail = &mod->sml_next;
2752                         i = j;
2753                 }
2754                 op->o_tmpfree( dels, op->o_tmpmemctx );
2755                 /* some values were added */
2756                 if ( nn && no < o ) {
2757                         mod = ch_malloc( sizeof( Modifications ) );
2758                         mod->sml_op = LDAP_MOD_ADD;
2759                         mod->sml_flags = 0;
2760                         mod->sml_desc = old->a_desc;
2761                         mod->sml_type = mod->sml_desc->ad_cname;
2762                         mod->sml_values = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2763                         if ( old->a_vals != old->a_nvals ) {
2764                                 mod->sml_nvalues = ch_malloc( ( nn + 1 ) * sizeof(struct berval) );
2765                         } else {
2766                                 mod->sml_nvalues = NULL;
2767                         }
2768                         j = 0;
2769                         for ( i = 0; i < n; i++ ) {
2770                                 if ( !adds[i] ) continue;
2771                                 ber_dupbv( &mod->sml_values[j], &new->a_vals[i] );
2772                                 if ( mod->sml_nvalues ) {
2773                                         ber_dupbv( &mod->sml_nvalues[j], &new->a_nvals[i] );
2774                                 }
2775                                 j++;
2776                         }
2777                         BER_BVZERO( &mod->sml_values[j] );
2778                         if ( mod->sml_nvalues ) {
2779                                 BER_BVZERO( &mod->sml_nvalues[j] );
2780                         }
2781                         *modtail = mod;
2782                         modtail = &mod->sml_next;
2783                         i = j;
2784                 }
2785                 op->o_tmpfree( adds, op->o_tmpmemctx );
2786         } else {
2787                 /* new attr, just use the new mod */
2788                 i = 0;
2789                 j = 1;
2790         }
2791         /* advance to next element */
2792         mod = **mcur;
2793         if ( mod ) {
2794                 if ( i != j ) {
2795                         **mcur = mod->sml_next;
2796                         *modtail = mod;
2797                         modtail = &mod->sml_next;
2798                 } else {
2799                         *mcur = &mod->sml_next;
2800                 }
2801         }
2802         *mret = modtail;
2803 }
2804
2805 static int
2806 dn_callback(
2807         Operation*      op,
2808         SlapReply*      rs )
2809 {
2810         dninfo *dni = op->o_callback->sc_private;
2811
2812         if ( rs->sr_type == REP_SEARCH ) {
2813                 if ( !BER_BVISNULL( &dni->dn ) ) {
2814                         Debug( LDAP_DEBUG_ANY,
2815                                 "dn_callback : consistency error - "
2816                                 "entryUUID is not unique\n", 0, 0, 0 );
2817                 } else {
2818                         ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
2819                         ber_dupbv_x( &dni->ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
2820                         /* If there is a new entry, see if it differs from the old.
2821                          * We compare the non-normalized values so that cosmetic changes
2822                          * in the provider are always propagated.
2823                          */
2824                         if ( dni->new_entry ) {
2825                                 Modifications **modtail, **ml;
2826                                 Attribute *old, *new;
2827                                 int is_ctx;
2828
2829                                 is_ctx = dn_match( &rs->sr_entry->e_nname,
2830                                         &op->o_bd->be_nsuffix[0] );
2831
2832                                 /* Did the DN change?
2833                                  */
2834                                 if ( !dn_match( &rs->sr_entry->e_name,
2835                                                 &dni->new_entry->e_name ) )
2836                                 {
2837                                         struct berval oldRDN, oldVal;
2838                                         AttributeDescription *ad = NULL;
2839                                         Attribute *a;
2840
2841                                         dni->renamed = 1;
2842                                         /* See if the oldRDN was deleted */
2843                                         dnRdn( &rs->sr_entry->e_nname, &oldRDN );
2844                                         oldVal.bv_val = strchr(oldRDN.bv_val, '=') + 1;
2845                                         oldVal.bv_len = oldRDN.bv_len - ( oldVal.bv_val -
2846                                                 oldRDN.bv_val );
2847                                         oldRDN.bv_len -= oldVal.bv_len + 2;
2848                                         slap_bv2ad( &oldRDN, &ad, &rs->sr_text );
2849                                         a = attr_find( dni->new_entry->e_attrs, ad );
2850                                         if ( !a || value_find_ex( ad,
2851                                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH |
2852                                                 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
2853                                                 SLAP_MR_VALUE_OF_SYNTAX, a->a_nvals,
2854                                                 &oldVal, op->o_tmpmemctx ) != LDAP_SUCCESS )
2855                                         {
2856                                                 dni->delOldRDN = 1;
2857                                         }
2858                                         /* OK, this was just a modDN, we're done */
2859                                         return LDAP_SUCCESS;
2860                                 }
2861
2862                                 modtail = &dni->mods;
2863                                 ml = dni->modlist;
2864
2865                                 /* Make sure new entry is actually newer than old entry */
2866                                 old = attr_find( rs->sr_entry->e_attrs,
2867                                         slap_schema.si_ad_entryCSN );
2868                                 new = attr_find( dni->new_entry->e_attrs,
2869                                         slap_schema.si_ad_entryCSN );
2870                                 if ( new && old ) {
2871                                         int rc, len = old->a_vals[0].bv_len;
2872                                         if ( len > new->a_vals[0].bv_len )
2873                                                 len = new->a_vals[0].bv_len;
2874                                         rc = memcmp( old->a_vals[0].bv_val,
2875                                                 new->a_vals[0].bv_val, len );
2876                                         if ( rc > 0 ) {
2877                                                 Debug( LDAP_DEBUG_SYNC,
2878                                                         "dn_callback : new entry is older than ours "
2879                                                         "%s ours %s, new %s\n",
2880                                                         rs->sr_entry->e_name.bv_val,
2881                                                         old->a_vals[0].bv_val,
2882                                                         new->a_vals[0].bv_val );
2883                                                 return LDAP_SUCCESS;
2884                                         } else if ( rc == 0 ) {
2885                                                 Debug( LDAP_DEBUG_SYNC,
2886                                                         "dn_callback : entries have identical CSN "
2887                                                         "%s ours %s, new %s\n",
2888                                                         rs->sr_entry->e_name.bv_val,
2889                                                         old->a_vals[0].bv_val,
2890                                                         new->a_vals[0].bv_val );
2891                                                 return LDAP_SUCCESS;
2892                                         }
2893                                 }
2894
2895                                 /* We assume that attributes are saved in the same order
2896                                  * in the remote and local databases. So if we walk through
2897                                  * the attributeDescriptions one by one they should match in
2898                                  * lock step. If not, look for an add or delete.
2899                                  */
2900                                 for ( old = rs->sr_entry->e_attrs, new = dni->new_entry->e_attrs;
2901                                                 old && new; )
2902                                 {
2903                                         /* If we've seen this before, use its mod now */
2904                                         if ( new->a_flags & SLAP_ATTR_IXADD ) {
2905                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2906                                                 new = new->a_next;
2907                                                 continue;
2908                                         }
2909                                         /* Skip contextCSN */
2910                                         if ( is_ctx && old->a_desc ==
2911                                                 slap_schema.si_ad_contextCSN ) {
2912                                                 old = old->a_next;
2913                                                 continue;
2914                                         }
2915
2916                                         if ( old->a_desc != new->a_desc ) {
2917                                                 Modifications *mod;
2918                                                 Attribute *tmp;
2919
2920                                                 /* If it's just been re-added later,
2921                                                  * remember that we've seen it.
2922                                                  */
2923                                                 tmp = attr_find( new, old->a_desc );
2924                                                 if ( tmp ) {
2925                                                         tmp->a_flags |= SLAP_ATTR_IXADD;
2926                                                 } else {
2927                                                         /* If it's a new attribute, pull it in.
2928                                                          */
2929                                                         tmp = attr_find( old, new->a_desc );
2930                                                         if ( !tmp ) {
2931                                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2932                                                                 new = new->a_next;
2933                                                                 continue;
2934                                                         }
2935                                                         /* Delete old attr */
2936                                                         mod = ch_malloc( sizeof( Modifications ) );
2937                                                         mod->sml_op = LDAP_MOD_DELETE;
2938                                                         mod->sml_flags = 0;
2939                                                         mod->sml_desc = old->a_desc;
2940                                                         mod->sml_type = mod->sml_desc->ad_cname;
2941                                                         mod->sml_values = NULL;
2942                                                         mod->sml_nvalues = NULL;
2943                                                         *modtail = mod;
2944                                                         modtail = &mod->sml_next;
2945                                                 }
2946                                                 old = old->a_next;
2947                                                 continue;
2948                                         }
2949                                         /* kludge - always update modifiersName so that it
2950                                          * stays co-located with the other mod opattrs. But only
2951                                          * if we know there are other valid mods.
2952                                          */
2953                                         if ( old->a_desc == slap_schema.si_ad_modifiersName &&
2954                                                 dni->mods )
2955                                                 attr_cmp( op, NULL, new, &modtail, &ml );
2956                                         else
2957                                                 attr_cmp( op, old, new, &modtail, &ml );
2958                                         new = new->a_next;
2959                                         old = old->a_next;
2960                                 }
2961                                 *modtail = *ml;
2962                                 *ml = NULL;
2963                         }
2964                 }
2965         } else if ( rs->sr_type == REP_RESULT ) {
2966                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
2967                         Debug( LDAP_DEBUG_ANY,
2968                                 "dn_callback : consistency error - "
2969                                 "entryUUID is not unique\n", 0, 0, 0 );
2970                 }
2971         }
2972
2973         return LDAP_SUCCESS;
2974 }
2975
2976 static int
2977 nonpresent_callback(
2978         Operation*      op,
2979         SlapReply*      rs )
2980 {
2981         syncinfo_t *si = op->o_callback->sc_private;
2982         Attribute *a;
2983         int count = 0;
2984         struct berval* present_uuid = NULL;
2985         struct nonpresent_entry *np_entry;
2986
2987         if ( rs->sr_type == REP_RESULT ) {
2988                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2989                 si->si_presentlist = NULL;
2990
2991         } else if ( rs->sr_type == REP_SEARCH ) {
2992                 if ( !( si->si_refreshDelete & NP_DELETE_ONE ) ) {
2993                         char buf[sizeof("rid=000 not")];
2994
2995                         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2996
2997                         if ( a ) {
2998                                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2999                                         syncuuid_cmp );
3000                         }
3001
3002                         if ( slap_debug & LDAP_DEBUG_SYNC ) {
3003                                 sprintf( buf, "%s %s", si->si_ridtxt,
3004                                         present_uuid ? "got" : "not" );
3005                         }
3006
3007                         Debug( LDAP_DEBUG_SYNC, "nonpresent_callback: %s UUID %s, dn %s\n",
3008                                 buf, a ? a->a_vals[0].bv_val : "<missing>", rs->sr_entry->e_name.bv_val );
3009
3010                         if ( a == NULL ) return 0;
3011                 }
3012
3013                 if ( present_uuid == NULL ) {
3014                         np_entry = (struct nonpresent_entry *)
3015                                 ch_calloc( 1, sizeof( struct nonpresent_entry ) );
3016                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
3017                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
3018                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
3019
3020                 } else {
3021                         avl_delete( &si->si_presentlist,
3022                                         &a->a_nvals[0], syncuuid_cmp );
3023                         ch_free( present_uuid->bv_val );
3024                         ch_free( present_uuid );
3025                 }
3026         }
3027         return LDAP_SUCCESS;
3028 }
3029
3030 static int
3031 null_callback(
3032         Operation*      op,
3033         SlapReply*      rs )
3034 {
3035         if ( rs->sr_err != LDAP_SUCCESS &&
3036                 rs->sr_err != LDAP_REFERRAL &&
3037                 rs->sr_err != LDAP_ALREADY_EXISTS &&
3038                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
3039                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
3040         {
3041                 Debug( LDAP_DEBUG_ANY,
3042                         "null_callback : error code 0x%x\n",
3043                         rs->sr_err, 0, 0 );
3044         }
3045         return LDAP_SUCCESS;
3046 }
3047
3048 static struct berval *
3049 slap_uuidstr_from_normalized(
3050         struct berval* uuidstr,
3051         struct berval* normalized,
3052         void *ctx )
3053 {
3054 #if 0
3055         struct berval *new;
3056         unsigned char nibble;
3057         int i, d = 0;
3058
3059         if ( normalized == NULL ) return NULL;
3060         if ( normalized->bv_len != 16 ) return NULL;
3061
3062         if ( uuidstr ) {
3063                 new = uuidstr;
3064         } else {
3065                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3066                 if ( new == NULL ) {
3067                         return NULL;
3068                 }
3069         }
3070
3071         new->bv_len = 36;
3072
3073         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3074                 if ( new != uuidstr ) {
3075                         slap_sl_free( new, ctx );
3076                 }
3077                 return NULL;
3078         }
3079
3080         for ( i = 0; i < 16; i++ ) {
3081                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
3082                         new->bv_val[(i<<1)+d] = '-';
3083                         d += 1;
3084                 }
3085
3086                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
3087                 if ( nibble < 10 ) {
3088                         new->bv_val[(i<<1)+d] = nibble + '0';
3089                 } else {
3090                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
3091                 }
3092
3093                 nibble = (normalized->bv_val[i]) & 0xF;
3094                 if ( nibble < 10 ) {
3095                         new->bv_val[(i<<1)+d+1] = nibble + '0';
3096                 } else {
3097                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
3098                 }
3099         }
3100
3101         new->bv_val[new->bv_len] = '\0';
3102         return new;
3103 #endif
3104
3105         struct berval   *new;
3106         int             rc = 0;
3107
3108         if ( normalized == NULL ) return NULL;
3109         if ( normalized->bv_len != 16 ) return NULL;
3110
3111         if ( uuidstr ) {
3112                 new = uuidstr;
3113
3114         } else {
3115                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
3116                 if ( new == NULL ) {
3117                         return NULL;
3118                 }
3119         }
3120
3121         new->bv_len = 36;
3122
3123         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
3124                 rc = 1;
3125                 goto done;
3126         }
3127
3128         rc = lutil_uuidstr_from_normalized( normalized->bv_val,
3129                 normalized->bv_len, new->bv_val, new->bv_len + 1 );
3130
3131 done:;
3132         if ( rc == -1 ) {
3133                 if ( new != NULL ) {
3134                         if ( new->bv_val != NULL ) {
3135                                 slap_sl_free( new->bv_val, ctx );
3136                         }
3137
3138                         if ( new != uuidstr ) {
3139                                 slap_sl_free( new, ctx );
3140                         }
3141                 }
3142                 new = NULL;
3143
3144         } else {
3145                 new->bv_len = rc;
3146         }
3147
3148         return new;
3149 }
3150
3151 static int
3152 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
3153 {
3154         const struct berval *uuid1 = v_uuid1;
3155         const struct berval *uuid2 = v_uuid2;
3156         int rc = uuid1->bv_len - uuid2->bv_len;
3157         if ( rc ) return rc;
3158         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
3159 }
3160
3161 static void
3162 avl_ber_bvfree( void *v_bv )
3163 {
3164         struct berval   *bv = (struct berval *)v_bv;
3165
3166         if( v_bv == NULL ) return;
3167         if ( !BER_BVISNULL( bv ) ) {
3168                 ch_free( bv->bv_val );
3169         }
3170         ch_free( (char *) bv );
3171 }
3172
3173 void
3174 syncinfo_free( syncinfo_t *sie, int free_all )
3175 {
3176         syncinfo_t *si_next;
3177
3178         if ( free_all && sie->si_cookieState ) {
3179                 ch_free( sie->si_cookieState->cs_sids );
3180                 ber_bvarray_free( sie->si_cookieState->cs_vals );
3181                 ldap_pvt_thread_mutex_destroy( &sie->si_cookieState->cs_mutex );
3182                 ch_free( sie->si_cookieState );
3183         }
3184         do {
3185                 si_next = sie->si_next;
3186
3187                 if ( sie->si_ld ) {
3188                         if ( sie->si_conn_setup ) {
3189                                 ber_socket_t s;
3190                                 ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
3191                                 connection_client_stop( s );
3192                                 sie->si_conn_setup = 0;
3193                         }
3194                         ldap_unbind_ext( sie->si_ld, NULL, NULL );
3195                 }
3196
3197                 /* re-fetch it, in case it was already removed */
3198                 sie->si_re = ldap_pvt_runqueue_find( &slapd_rq, do_syncrepl, sie );
3199                 if ( sie->si_re ) {
3200                         if ( ldap_pvt_runqueue_isrunning( &slapd_rq, sie->si_re ) )
3201                                 ldap_pvt_runqueue_stoptask( &slapd_rq, sie->si_re );
3202                         ldap_pvt_runqueue_remove( &slapd_rq, sie->si_re );
3203                 }
3204
3205                 ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
3206
3207                 bindconf_free( &sie->si_bindconf );
3208
3209                 if ( sie->si_filterstr.bv_val ) {
3210                         ch_free( sie->si_filterstr.bv_val );
3211                 }
3212                 if ( sie->si_logfilterstr.bv_val ) {
3213                         ch_free( sie->si_logfilterstr.bv_val );
3214                 }
3215                 if ( sie->si_base.bv_val ) {
3216                         ch_free( sie->si_base.bv_val );
3217                 }
3218                 if ( sie->si_logbase.bv_val ) {
3219                         ch_free( sie->si_logbase.bv_val );
3220                 }
3221                 if ( sie->si_attrs ) {
3222                         int i = 0;
3223                         while ( sie->si_attrs[i] != NULL ) {
3224                                 ch_free( sie->si_attrs[i] );
3225                                 i++;
3226                         }
3227                         ch_free( sie->si_attrs );
3228                 }
3229                 if ( sie->si_exattrs ) {
3230                         int i = 0;
3231                         while ( sie->si_exattrs[i] != NULL ) {
3232                                 ch_free( sie->si_exattrs[i] );
3233                                 i++;
3234                         }
3235                         ch_free( sie->si_exattrs );
3236                 }
3237                 if ( sie->si_anlist ) {
3238                         int i = 0;
3239                         while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
3240                                 ch_free( sie->si_anlist[i].an_name.bv_val );
3241                                 i++;
3242                         }
3243                         ch_free( sie->si_anlist );
3244                 }
3245                 if ( sie->si_exanlist ) {
3246                         int i = 0;
3247                         while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
3248                                 ch_free( sie->si_exanlist[i].an_name.bv_val );
3249                                 i++;
3250                         }
3251                         ch_free( sie->si_exanlist );
3252                 }
3253                 if ( sie->si_retryinterval ) {
3254                         ch_free( sie->si_retryinterval );
3255                 }
3256                 if ( sie->si_retrynum ) {
3257                         ch_free( sie->si_retrynum );
3258                 }
3259                 if ( sie->si_retrynum_init ) {
3260                         ch_free( sie->si_retrynum_init );
3261                 }
3262                 slap_sync_cookie_free( &sie->si_syncCookie, 0 );
3263                 if ( sie->si_presentlist ) {
3264                     avl_free( sie->si_presentlist, avl_ber_bvfree );
3265                 }
3266                 while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist ) ) {
3267                         struct nonpresent_entry* npe;
3268                         npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
3269                         LDAP_LIST_REMOVE( npe, npe_link );
3270                         if ( npe->npe_name ) {
3271                                 if ( npe->npe_name->bv_val ) {
3272                                         ch_free( npe->npe_name->bv_val );
3273                                 }
3274                                 ch_free( npe->npe_name );
3275                         }
3276                         if ( npe->npe_nname ) {
3277                                 if ( npe->npe_nname->bv_val ) {
3278                                         ch_free( npe->npe_nname->bv_val );
3279                                 }
3280                                 ch_free( npe->npe_nname );
3281                         }
3282                         ch_free( npe );
3283                 }
3284                 ch_free( sie );
3285                 sie = si_next;
3286         } while ( free_all && si_next );
3287 }
3288
3289
3290
3291 /* NOTE: used & documented in slapd.conf(5) */
3292 #define IDSTR                   "rid"
3293 #define PROVIDERSTR             "provider"
3294 #define SCHEMASTR               "schemachecking"
3295 #define FILTERSTR               "filter"
3296 #define SEARCHBASESTR           "searchbase"
3297 #define SCOPESTR                "scope"
3298 #define ATTRSONLYSTR            "attrsonly"
3299 #define ATTRSSTR                "attrs"
3300 #define TYPESTR                 "type"
3301 #define INTERVALSTR             "interval"
3302 #define RETRYSTR                "retry"
3303 #define SLIMITSTR               "sizelimit"
3304 #define TLIMITSTR               "timelimit"
3305 #define SYNCDATASTR             "syncdata"
3306 #define LOGBASESTR              "logbase"
3307 #define LOGFILTERSTR    "logfilter"
3308
3309 /* FIXME: undocumented */
3310 #define EXATTRSSTR              "exattrs"
3311 #define MANAGEDSAITSTR          "manageDSAit"
3312
3313 /* mandatory */
3314 #define GOT_ID                  0x0001
3315 #define GOT_PROVIDER    0x0002
3316 #define GOT_BASE                0x0004
3317
3318 /* check */
3319 #define GOT_ALL                 (GOT_ID|GOT_PROVIDER|GOT_BASE)
3320
3321 static struct {
3322         struct berval key;
3323         int val;
3324 } scopes[] = {
3325         { BER_BVC("base"), LDAP_SCOPE_BASE },
3326         { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
3327         { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
3328         { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
3329         { BER_BVC("subord"), LDAP_SCOPE_SUBORDINATE },
3330         { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
3331         { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
3332         { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
3333         { BER_BVNULL, 0 }
3334 };
3335
3336 static slap_verbmasks datamodes[] = {
3337         { BER_BVC("default"), SYNCDATA_DEFAULT },
3338         { BER_BVC("accesslog"), SYNCDATA_ACCESSLOG },
3339         { BER_BVC("changelog"), SYNCDATA_CHANGELOG },
3340         { BER_BVNULL, 0 }
3341 };
3342
3343 static int
3344 parse_syncrepl_line(
3345         ConfigArgs      *c,
3346         syncinfo_t      *si )
3347 {
3348         int     gots = 0;
3349         int     i;
3350         char    *val;
3351
3352         for ( i = 1; i < c->argc; i++ ) {
3353                 if ( !strncasecmp( c->argv[ i ], IDSTR "=",
3354                                         STRLENOF( IDSTR "=" ) ) )
3355                 {
3356                         int tmp;
3357                         /* '\0' string terminator accounts for '=' */
3358                         val = c->argv[ i ] + STRLENOF( IDSTR "=" );
3359                         if ( lutil_atoi( &tmp, val ) != 0 ) {
3360                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3361                                         "Error: parse_syncrepl_line: "
3362                                         "unable to parse syncrepl id \"%s\"", val );
3363                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3364                                 return -1;
3365                         }
3366                         if ( tmp > SLAP_SYNC_SID_MAX || tmp < 0 ) {
3367                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3368                                         "Error: parse_syncrepl_line: "
3369                                         "syncrepl id %d is out of range [0..4095]", tmp );
3370                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3371                                 return -1;
3372                         }
3373                         si->si_rid = tmp;
3374                         sprintf( si->si_ridtxt, IDSTR "=%d", si->si_rid );
3375                         gots |= GOT_ID;
3376                 } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
3377                                         STRLENOF( PROVIDERSTR "=" ) ) )
3378                 {
3379                         val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
3380                         ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
3381                         gots |= GOT_PROVIDER;
3382                 } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
3383                                         STRLENOF( SCHEMASTR "=" ) ) )
3384                 {
3385                         val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
3386                         if ( !strncasecmp( val, "on", STRLENOF( "on" ) ) ) {
3387                                 si->si_schemachecking = 1;
3388                         } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
3389                                 si->si_schemachecking = 0;
3390                         } else {
3391                                 si->si_schemachecking = 1;
3392                         }
3393                 } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
3394                                         STRLENOF( FILTERSTR "=" ) ) )
3395                 {
3396                         val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
3397                         if ( si->si_filterstr.bv_val )
3398                                 ch_free( si->si_filterstr.bv_val );
3399                         ber_str2bv( val, 0, 1, &si->si_filterstr );
3400                 } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
3401                                         STRLENOF( LOGFILTERSTR "=" ) ) )
3402                 {
3403                         val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
3404                         if ( si->si_logfilterstr.bv_val )
3405                                 ch_free( si->si_logfilterstr.bv_val );
3406                         ber_str2bv( val, 0, 1, &si->si_logfilterstr );
3407                 } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
3408                                         STRLENOF( SEARCHBASESTR "=" ) ) )
3409                 {
3410                         struct berval   bv;
3411                         int             rc;
3412
3413                         val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
3414                         if ( si->si_base.bv_val ) {
3415                                 ch_free( si->si_base.bv_val );
3416                         }
3417                         ber_str2bv( val, 0, 0, &bv );
3418                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
3419                         if ( rc != LDAP_SUCCESS ) {
3420                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3421                                         "Invalid base DN \"%s\": %d (%s)",
3422                                         val, rc, ldap_err2string( rc ) );
3423                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3424                                 return -1;
3425                         }
3426                         if ( !be_issubordinate( c->be, &si->si_base ) ) {
3427                                 ch_free( si->si_base.bv_val );
3428                                 BER_BVZERO( &si->si_base );
3429                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3430                                         "Base DN \"%s\" is not within the database naming context",
3431                                         val );
3432                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3433                                 return -1;
3434                         }
3435                         gots |= GOT_BASE;
3436                 } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
3437                                         STRLENOF( LOGBASESTR "=" ) ) )
3438                 {
3439                         struct berval   bv;
3440                         int             rc;
3441
3442                         val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
3443                         if ( si->si_logbase.bv_val ) {
3444                                 ch_free( si->si_logbase.bv_val );
3445                         }
3446                         ber_str2bv( val, 0, 0, &bv );
3447                         rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
3448                         if ( rc != LDAP_SUCCESS ) {
3449                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3450                                         "Invalid logbase DN \"%s\": %d (%s)",
3451                                         val, rc, ldap_err2string( rc ) );
3452                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3453                                 return -1;
3454                         }
3455                 } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
3456                                         STRLENOF( SCOPESTR "=" ) ) )
3457                 {
3458                         int j;
3459                         val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
3460                         for ( j = 0; !BER_BVISNULL(&scopes[j].key); j++ ) {
3461                                 if (!strcasecmp( val, scopes[j].key.bv_val ) ) {
3462                                         si->si_scope = scopes[j].val;
3463                                         break;
3464                                 }
3465                         }
3466                         if ( BER_BVISNULL(&scopes[j].key) ) {
3467                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3468                                         "Error: parse_syncrepl_line: "
3469                                         "unknown scope \"%s\"", val);
3470                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3471                                 return -1;
3472                         }
3473                 } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
3474                                         STRLENOF( ATTRSONLYSTR ) ) )
3475                 {
3476                         si->si_attrsonly = 1;
3477                 } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
3478                                         STRLENOF( ATTRSSTR "=" ) ) )
3479                 {
3480                         val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
3481                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3482                                 char *attr_fname;
3483                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3484                                 si->si_anlist = file2anlist( si->si_anlist, attr_fname, " ,\t" );
3485                                 if ( si->si_anlist == NULL ) {
3486                                         ch_free( attr_fname );
3487                                         return -1;
3488                                 }
3489                                 si->si_anfile = attr_fname;
3490                         } else {
3491                                 char *str, *s, *next;
3492                                 char delimstr[] = " ,\t";
3493                                 str = ch_strdup( val );
3494                                 for ( s = ldap_pvt_strtok( str, delimstr, &next );
3495                                                 s != NULL;
3496                                                 s = ldap_pvt_strtok( NULL, delimstr, &next ) )
3497                                 {
3498                                         if ( strlen(s) == 1 && *s == '*' ) {
3499                                                 si->si_allattrs = 1;
3500                                                 val[ s - str ] = delimstr[0];
3501                                         }
3502                                         if ( strlen(s) == 1 && *s == '+' ) {
3503                                                 si->si_allopattrs = 1;
3504                                                 val [ s - str ] = delimstr[0];
3505                                         }
3506                                 }
3507                                 ch_free( str );
3508                                 si->si_anlist = str2anlist( si->si_anlist, val, " ,\t" );
3509                                 if ( si->si_anlist == NULL ) {
3510                                         return -1;
3511                                 }
3512                         }
3513                 } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
3514                                         STRLENOF( EXATTRSSTR "=" ) ) )
3515                 {
3516                         val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
3517                         if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
3518                                 char *attr_fname;
3519                                 attr_fname = ch_strdup( val + STRLENOF(":include:") );
3520                                 si->si_exanlist = file2anlist(
3521                                         si->si_exanlist, attr_fname, " ,\t" );
3522                                 if ( si->si_exanlist == NULL ) {
3523                                         ch_free( attr_fname );
3524                                         return -1;
3525                                 }
3526                                 ch_free( attr_fname );
3527                         } else {
3528                                 si->si_exanlist = str2anlist( si->si_exanlist, val, " ,\t" );
3529                                 if ( si->si_exanlist == NULL ) {
3530                                         return -1;
3531                                 }
3532                         }
3533                 } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
3534                                         STRLENOF( TYPESTR "=" ) ) )
3535                 {
3536                         val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
3537                         if ( !strncasecmp( val, "refreshOnly",
3538                                                 STRLENOF("refreshOnly") ) )
3539                         {
3540                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3541                         } else if ( !strncasecmp( val, "refreshAndPersist",
3542                                                 STRLENOF("refreshAndPersist") ) )
3543                         {
3544                                 si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
3545                                 si->si_interval = 60;
3546                         } else {
3547                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3548                                         "Error: parse_syncrepl_line: "
3549                                         "unknown sync type \"%s\"", val);
3550                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3551                                 return -1;
3552                         }
3553                 } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
3554                                         STRLENOF( INTERVALSTR "=" ) ) )
3555                 {
3556                         val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
3557                         if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
3558                                 si->si_interval = 0;
3559                         } else if ( strchr( val, ':' ) != NULL ) {
3560                                 char *next, *ptr = val;
3561                                 unsigned dd, hh, mm, ss;
3562
3563                                 /* NOTE: the test for ptr[ 0 ] == '-'
3564                                  * should go before the call to strtoul() */
3565                                 dd = strtoul( ptr, &next, 10 );
3566                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' ) {
3567                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3568                                                 "Error: parse_syncrepl_line: "
3569                                                 "invalid interval \"%s\", unable to parse days", val );
3570                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3571                                         return -1;
3572                                 }
3573                                 ptr = next + 1;
3574                                 hh = strtoul( ptr, &next, 10 );
3575                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || hh > 24 ) {
3576                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3577                                                 "Error: parse_syncrepl_line: "
3578                                                 "invalid interval \"%s\", unable to parse hours", val );
3579                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3580                                         return -1;
3581                                 }
3582                                 ptr = next + 1;
3583                                 mm = strtoul( ptr, &next, 10 );
3584                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || mm > 60 ) {
3585                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3586                                                 "Error: parse_syncrepl_line: "
3587                                                 "invalid interval \"%s\", unable to parse minutes", val );
3588                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3589                                         return -1;
3590                                 }
3591                                 ptr = next + 1;
3592                                 ss = strtoul( ptr, &next, 10 );
3593                                 if ( ptr[ 0 ] == '-' || next == ptr || next[0] != '\0' || ss > 60 ) {
3594                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3595                                                 "Error: parse_syncrepl_line: "
3596                                                 "invalid interval \"%s\", unable to parse seconds", val );
3597                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3598                                         return -1;
3599                                 }
3600                                 si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
3601                         } else {
3602                                 unsigned long   t;
3603
3604                                 if ( lutil_parse_time( val, &t ) != 0 ) {
3605                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3606                                                 "Error: parse_syncrepl_line: "
3607                                                 "invalid interval \"%s\"", val );
3608                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3609                                         return -1;
3610                                 }
3611                                 si->si_interval = (time_t)t;
3612                         }
3613                         if ( si->si_interval < 0 ) {
3614                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3615                                         "Error: parse_syncrepl_line: "
3616                                         "invalid interval \"%ld\"",
3617                                         (long) si->si_interval);
3618                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3619                                 return -1;
3620                         }
3621                 } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
3622                                         STRLENOF( RETRYSTR "=" ) ) )
3623                 {
3624                         char **retry_list;
3625                         int j, k, n;
3626
3627                         val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
3628                         retry_list = (char **) ch_calloc( 1, sizeof( char * ) );
3629                         retry_list[0] = NULL;
3630
3631                         slap_str2clist( &retry_list, val, " ,\t" );
3632
3633                         for ( k = 0; retry_list && retry_list[k]; k++ ) ;
3634                         n = k / 2;
3635                         if ( k % 2 ) {
3636                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3637                                         "Error: incomplete syncrepl retry list" );
3638                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3639                                 for ( k = 0; retry_list && retry_list[k]; k++ ) {
3640                                         ch_free( retry_list[k] );
3641                                 }
3642                                 ch_free( retry_list );
3643                                 return 1;
3644                         }
3645                         si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ) );
3646                         si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ) );
3647                         si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ) );
3648                         for ( j = 0; j < n; j++ ) {
3649                                 unsigned long   t;
3650                                 if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
3651                                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3652                                                 "Error: invalid retry interval \"%s\" (#%d)",
3653                                                 retry_list[j*2], j );
3654                                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3655                                         /* do some cleanup */
3656                                         return 1;
3657                                 }
3658                                 si->si_retryinterval[j] = (time_t)t;
3659                                 if ( *retry_list[j*2+1] == '+' ) {
3660                                         si->si_retrynum_init[j] = RETRYNUM_FOREVER;
3661                                         si->si_retrynum[j] = RETRYNUM_FOREVER;
3662                                         j++;
3663                                         break;
3664                                 } else {
3665                                         if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
3666                                                         || si->si_retrynum_init[j] <= 0 )
3667                                         {
3668                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3669                                                         "Error: invalid initial retry number \"%s\" (#%d)",
3670                                                         retry_list[j*2+1], j );
3671                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3672                                                 /* do some cleanup */
3673                                                 return 1;
3674                                         }
3675                                         if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
3676                                                         || si->si_retrynum[j] <= 0 )
3677                                         {
3678                                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3679                                                         "Error: invalid retry number \"%s\" (#%d)",
3680                                                         retry_list[j*2+1], j );
3681                                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3682                                                 /* do some cleanup */
3683                                                 return 1;
3684                                         }
3685                                 }
3686                         }
3687                         si->si_retrynum_init[j] = RETRYNUM_TAIL;
3688                         si->si_retrynum[j] = RETRYNUM_TAIL;
3689                         si->si_retryinterval[j] = 0;
3690
3691                         for ( k = 0; retry_list && retry_list[k]; k++ ) {
3692                                 ch_free( retry_list[k] );
3693                         }
3694                         ch_free( retry_list );
3695                 } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
3696                                         STRLENOF( MANAGEDSAITSTR "=" ) ) )
3697                 {
3698                         val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
3699                         if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
3700                                 || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
3701                         {
3702                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3703                                         "invalid manageDSAit value \"%s\".\n",
3704                                         val );
3705                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3706                                 return 1;
3707                         }
3708                 } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
3709                                         STRLENOF( SLIMITSTR "=") ) )
3710                 {
3711                         val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
3712                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3713                                 si->si_slimit = 0;
3714
3715                         } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
3716                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3717                                         "invalid size limit value \"%s\".\n",
3718                                         val );
3719                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3720                                 return 1;
3721                         }
3722                 } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
3723                                         STRLENOF( TLIMITSTR "=" ) ) )
3724                 {
3725                         val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
3726                         if ( strcasecmp( val, "unlimited" ) == 0 ) {
3727                                 si->si_tlimit = 0;
3728
3729                         } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
3730                                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3731                                         "invalid time limit value \"%s\".\n",
3732                                         val );
3733                                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3734                                 return 1;
3735                         }
3736                 } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
3737                                         STRLENOF( SYNCDATASTR "=" ) ) )
3738                 {
3739                         val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
3740                         si->si_syncdata = verb_to_mask( val, datamodes );
3741                 } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
3742                         snprintf( c->cr_msg, sizeof( c->cr_msg ),
3743                                 "Error: parse_syncrepl_line: "
3744                                 "unable to parse \"%s\"\n", c->argv[ i ] );
3745                         Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3746                         return -1;
3747                 }
3748         }
3749
3750         if ( gots != GOT_ALL ) {
3751                 snprintf( c->cr_msg, sizeof( c->cr_msg ),
3752                         "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
3753                         gots & GOT_ID ? "" : " "IDSTR,
3754                         gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
3755                         gots & GOT_BASE ? "" : " "SEARCHBASESTR );
3756                 Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 );
3757                 return -1;
3758         }
3759
3760         return 0;
3761 }
3762
3763 static int
3764 add_syncrepl(
3765         ConfigArgs *c )
3766 {
3767         syncinfo_t *si;
3768         int     rc = 0;
3769
3770         if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
3771                 snprintf( c->cr_msg, sizeof(c->cr_msg), "database %s does not support "
3772                         "operations required for syncrepl", c->be->be_type );
3773                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3774                 return 1;
3775         }
3776         if ( BER_BVISEMPTY( &c->be->be_rootdn ) ) {
3777                 strcpy( c->cr_msg, "rootDN must be defined before syncrepl may be used" );
3778                 Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->cr_msg, 0 );
3779                 return 1;
3780         }
3781         si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
3782
3783         if ( si == NULL ) {
3784                 Debug( LDAP_DEBUG_ANY, "out of memory in add_syncrepl\n", 0, 0, 0 );
3785                 return 1;
3786         }
3787
3788         si->si_bindconf.sb_tls = SB_TLS_OFF;
3789         si->si_bindconf.sb_method = LDAP_AUTH_SIMPLE;
3790         si->si_schemachecking = 0;
3791         ber_str2bv( "(objectclass=*)", STRLENOF("(objectclass=*)"), 1,
3792                 &si->si_filterstr );
3793         si->si_base.bv_val = NULL;
3794         si->si_scope = LDAP_SCOPE_SUBTREE;
3795         si->si_attrsonly = 0;
3796         si->si_anlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3797         si->si_exanlist = (AttributeName *) ch_calloc( 1, sizeof( AttributeName ) );
3798         si->si_attrs = NULL;
3799         si->si_allattrs = 0;
3800         si->si_allopattrs = 0;
3801         si->si_exattrs = NULL;
3802         si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
3803         si->si_interval = 86400;
3804         si->si_retryinterval = NULL;
3805         si->si_retrynum_init = NULL;
3806         si->si_retrynum = NULL;
3807         si->si_manageDSAit = 0;
3808         si->si_tlimit = 0;
3809         si->si_slimit = 0;
3810         si->si_conn_setup = 0;
3811
3812         si->si_presentlist = NULL;
3813         LDAP_LIST_INIT( &si->si_nonpresentlist );
3814         ldap_pvt_thread_mutex_init( &si->si_mutex );
3815
3816         rc = parse_syncrepl_line( c, si );
3817
3818         if ( rc == 0 ) {
3819                 /* Must be LDAPv3 because we need controls */
3820                 switch ( si->si_bindconf.sb_version ) {
3821                 case 0:
3822                         /* not explicitly set */
3823                         si->si_bindconf.sb_version = LDAP_VERSION3;
3824                         break;
3825                 case 3:
3826                         /* explicitly set */
3827                         break;
3828                 default:
3829                         Debug( LDAP_DEBUG_ANY,
3830                                 "version %d incompatible with syncrepl\n",
3831                                 si->si_bindconf.sb_version, 0, 0 );
3832                         syncinfo_free( si, 0 );
3833                         return 1;
3834                 }
3835
3836                 si->si_be = c->be;
3837                 if ( slapMode & SLAP_SERVER_MODE ) {
3838                         Listener **l = slapd_get_listeners();
3839                         int isMe = 0;
3840
3841                         /* check if URL points to current server. If so, ignore
3842                          * this configuration. We require an exact match. Just
3843                          * in case they really want to do this, they can vary
3844                          * the case of the URL to allow it.
3845                          */
3846                         if ( l && !SLAP_DBHIDDEN( c->be ) ) {
3847                                 int i;
3848                                 for ( i=0; l[i]; i++ ) {
3849                                         if ( bvmatch( &l[i]->sl_url, &si->si_bindconf.sb_uri ) ) {
3850                                                 isMe = 1;
3851                                                 break;
3852                                         }
3853                                 }
3854                         }
3855
3856                         if ( !isMe ) {
3857                                 init_syncrepl( si );
3858                                 si->si_re = ldap_pvt_runqueue_insert( &slapd_rq,
3859                                         si->si_interval, do_syncrepl, si, "do_syncrepl",
3860                                         si->si_ridtxt );
3861                                 if ( si->si_re )
3862                                         rc = config_sync_shadow( c ) ? -1 : 0;
3863                                 else
3864                                         rc = -1;
3865                         }
3866                 } else {
3867                         /* mirrormode still needs to see this flag in tool mode */
3868                         rc = config_sync_shadow( c ) ? -1 : 0;
3869                 }
3870         }
3871
3872 #ifdef HAVE_TLS
3873         /* Use main slapd defaults */
3874         bindconf_tls_defaults( &si->si_bindconf );
3875 #endif
3876         if ( rc < 0 ) {
3877                 Debug( LDAP_DEBUG_ANY, "failed to add syncinfo\n", 0, 0, 0 );
3878                 syncinfo_free( si, 0 );
3879                 return 1;
3880         } else {
3881                 Debug( LDAP_DEBUG_CONFIG,
3882                         "Config: ** successfully added syncrepl \"%s\"\n",
3883                         BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
3884                         "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
3885                 if ( !si->si_schemachecking ) {
3886                         SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
3887                 }
3888                 if ( c->be->be_syncinfo ) {
3889                         si->si_cookieState = c->be->be_syncinfo->si_cookieState;
3890                 } else {
3891                         si->si_cookieState = ch_calloc( 1, sizeof( cookie_state ));
3892                         ldap_pvt_thread_mutex_init( &si->si_cookieState->cs_mutex );
3893                 }
3894                 si->si_next = c->be->be_syncinfo;
3895                 c->be->be_syncinfo = si;
3896                 return 0;
3897         }
3898 }
3899
3900 static void
3901 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
3902 {
3903         struct berval bc, uri;
3904         char buf[BUFSIZ*2], *ptr;
3905         int i;
3906
3907 #define WHATSLEFT       ( sizeof( buf ) - ( ptr - buf ) )
3908
3909         BER_BVZERO( bv );
3910
3911         /* temporarily inhibit bindconf from printing URI */
3912         uri = si->si_bindconf.sb_uri;
3913         BER_BVZERO( &si->si_bindconf.sb_uri );
3914         si->si_bindconf.sb_version = 0;
3915         bindconf_unparse( &si->si_bindconf, &bc );
3916         si->si_bindconf.sb_uri = uri;
3917         si->si_bindconf.sb_version = LDAP_VERSION3;
3918
3919         ptr = buf;
3920         assert( si->si_rid >= 0 && si->si_rid <= SLAP_SYNC_SID_MAX );
3921         ptr += snprintf( ptr, WHATSLEFT, IDSTR "=%d " PROVIDERSTR "=%s",
3922                 si->si_rid, si->si_bindconf.sb_uri.bv_val );
3923         if ( ptr - buf >= sizeof( buf ) ) return;
3924         if ( !BER_BVISNULL( &bc ) ) {
3925                 if ( WHATSLEFT <= bc.bv_len ) {
3926                         free( bc.bv_val );
3927                         return;
3928                 }
3929                 ptr = lutil_strcopy( ptr, bc.bv_val );
3930                 free( bc.bv_val );
3931         }
3932         if ( !BER_BVISEMPTY( &si->si_filterstr ) ) {
3933                 if ( WHATSLEFT <= STRLENOF( " " FILTERSTR "=\"" "\"" ) + si->si_filterstr.bv_len ) return;
3934                 ptr = lutil_strcopy( ptr, " " FILTERSTR "=\"" );
3935                 ptr = lutil_strcopy( ptr, si->si_filterstr.bv_val );
3936                 *ptr++ = '"';
3937         }
3938         if ( !BER_BVISNULL( &si->si_base ) ) {
3939                 if ( WHATSLEFT <= STRLENOF( " " SEARCHBASESTR "=\"" "\"" ) + si->si_base.bv_len ) return;
3940                 ptr = lutil_strcopy( ptr, " " SEARCHBASESTR "=\"" );
3941                 ptr = lutil_strcopy( ptr, si->si_base.bv_val );
3942                 *ptr++ = '"';
3943         }
3944         if ( !BER_BVISEMPTY( &si->si_logfilterstr ) ) {
3945                 if ( WHATSLEFT <= STRLENOF( " " LOGFILTERSTR "=\"" "\"" ) + si->si_logfilterstr.bv_len ) return;
3946                 ptr = lutil_strcopy( ptr, " " LOGFILTERSTR "=\"" );
3947                 ptr = lutil_strcopy( ptr, si->si_logfilterstr.bv_val );
3948                 *ptr++ = '"';
3949         }
3950         if ( !BER_BVISNULL( &si->si_logbase ) ) {
3951                 if ( WHATSLEFT <= STRLENOF( " " LOGBASESTR "=\"" "\"" ) + si->si_logbase.bv_len ) return;
3952                 ptr = lutil_strcopy( ptr, " " LOGBASESTR "=\"" );
3953                 ptr = lutil_strcopy( ptr, si->si_logbase.bv_val );
3954                 *ptr++ = '"';
3955         }
3956         for (i=0; !BER_BVISNULL(&scopes[i].key);i++) {
3957                 if ( si->si_scope == scopes[i].val ) {
3958                         if ( WHATSLEFT <= STRLENOF( " " SCOPESTR "=" ) + scopes[i].key.bv_len ) return;
3959                         ptr = lutil_strcopy( ptr, " " SCOPESTR "=" );
3960                         ptr = lutil_strcopy( ptr, scopes[i].key.bv_val );
3961                         break;
3962                 }
3963         }
3964         if ( si->si_attrsonly ) {
3965                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3966                 ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
3967         }
3968         if ( si->si_anfile ) {
3969                 if ( WHATSLEFT <= STRLENOF( " " ATTRSSTR "=\":include:" "\"" ) + strlen( si->si_anfile ) ) return;
3970                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:\"" );
3971                 ptr = lutil_strcopy( ptr, si->si_anfile );
3972                 *ptr++ = '"';
3973         } else if ( si->si_allattrs || si->si_allopattrs ||
3974                 ( si->si_anlist && !BER_BVISNULL(&si->si_anlist[0].an_name) ) )
3975         {
3976                 char *old;
3977
3978                 if ( WHATSLEFT <= STRLENOF( " " ATTRSONLYSTR "=\"" "\"" ) ) return;
3979                 ptr = lutil_strcopy( ptr, " " ATTRSSTR "=\"" );
3980                 old = ptr;
3981                 /* FIXME: add check for overflow */
3982                 ptr = anlist_unparse( si->si_anlist, ptr, WHATSLEFT );
3983                 if ( si->si_allattrs ) {
3984                         if ( WHATSLEFT <= STRLENOF( ",*\"" ) ) return;
3985                         if ( old != ptr ) *ptr++ = ',';
3986                         *ptr++ = '*';
3987                 }
3988                 if ( si->si_allopattrs ) {
3989                         if ( WHATSLEFT <= STRLENOF( ",+\"" ) ) return;
3990                         if ( old != ptr ) *ptr++ = ',';
3991                         *ptr++ = '+';
3992                 }
3993                 *ptr++ = '"';
3994         }
3995         if ( si->si_exanlist && !BER_BVISNULL(&si->si_exanlist[0].an_name) ) {
3996                 if ( WHATSLEFT <= STRLENOF( " " EXATTRSSTR "=" ) ) return;
3997                 ptr = lutil_strcopy( ptr, " " EXATTRSSTR "=" );
3998                 /* FIXME: add check for overflow */
3999                 ptr = anlist_unparse( si->si_exanlist, ptr, WHATSLEFT );
4000         }
4001         if ( WHATSLEFT <= STRLENOF( " " SCHEMASTR "=" ) + STRLENOF( "off" ) ) return;
4002         ptr = lutil_strcopy( ptr, " " SCHEMASTR "=" );
4003         ptr = lutil_strcopy( ptr, si->si_schemachecking ? "on" : "off" );
4004
4005         if ( WHATSLEFT <= STRLENOF( " " TYPESTR "=" ) + STRLENOF( "refreshAndPersist" ) ) return;
4006         ptr = lutil_strcopy( ptr, " " TYPESTR "=" );
4007         ptr = lutil_strcopy( ptr, si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ?
4008                 "refreshAndPersist" : "refreshOnly" );
4009
4010         if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
4011                 int dd, hh, mm, ss;
4012
4013                 dd = si->si_interval;
4014                 ss = dd % 60;
4015                 dd /= 60;
4016                 mm = dd % 60;
4017                 dd /= 60;
4018                 hh = dd % 24;
4019                 dd /= 24;
4020                 ptr = lutil_strcopy( ptr, " " INTERVALSTR "=" );
4021                 ptr += snprintf( ptr, WHATSLEFT, "%02d:%02d:%02d:%02d", dd, hh, mm, ss );
4022                 if ( ptr - buf >= sizeof( buf ) ) return;
4023         } else if ( si->si_retryinterval ) {
4024                 int space=0;
4025                 if ( WHATSLEFT <= STRLENOF( " " RETRYSTR "=\"" "\"" ) ) return;
4026                 ptr = lutil_strcopy( ptr, " " RETRYSTR "=\"" );
4027                 for (i=0; si->si_retryinterval[i]; i++) {
4028                         if ( space ) *ptr++ = ' ';
4029                         space = 1;
4030                         ptr += snprintf( ptr, WHATSLEFT, "%ld ", (long) si->si_retryinterval[i] );
4031                         if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
4032                                 *ptr++ = '+';
4033                         else
4034                                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_retrynum_init[i] );
4035                 }
4036                 if ( WHATSLEFT <= STRLENOF( "\"" ) ) return;
4037                 *ptr++ = '"';
4038         }
4039
4040         if ( si->si_slimit ) {
4041                 if ( WHATSLEFT <= STRLENOF( " " SLIMITSTR "=" ) ) return;
4042                 ptr = lutil_strcopy( ptr, " " SLIMITSTR "=" );
4043                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_slimit );
4044         }
4045
4046         if ( si->si_tlimit ) {
4047                 if ( WHATSLEFT <= STRLENOF( " " TLIMITSTR "=" ) ) return;
4048                 ptr = lutil_strcopy( ptr, " " TLIMITSTR "=" );
4049                 ptr += snprintf( ptr, WHATSLEFT, "%d", si->si_tlimit );
4050         }
4051
4052         if ( si->si_syncdata ) {
4053                 if ( enum_to_verb( datamodes, si->si_syncdata, &bc ) >= 0 ) {
4054                         if ( WHATSLEFT <= STRLENOF( " " SYNCDATASTR "=" ) + bc.bv_len ) return;
4055                         ptr = lutil_strcopy( ptr, " " SYNCDATASTR "=" );
4056                         ptr = lutil_strcopy( ptr, bc.bv_val );
4057                 }
4058         }
4059         bc.bv_len = ptr - buf;
4060         bc.bv_val = buf;
4061         ber_dupbv( bv, &bc );
4062 }
4063
4064 int
4065 syncrepl_config( ConfigArgs *c )
4066 {
4067         if (c->op == SLAP_CONFIG_EMIT) {
4068                 if ( c->be->be_syncinfo ) {
4069                         struct berval bv;
4070                         syncinfo_t *si;
4071
4072                         for ( si = c->be->be_syncinfo; si; si=si->si_next ) {
4073                                 syncrepl_unparse( si, &bv );
4074                                 ber_bvarray_add( &c->rvalue_vals, &bv );
4075                         }
4076                         return 0;
4077                 }
4078                 return 1;
4079         } else if ( c->op == LDAP_MOD_DELETE ) {
4080                 cookie_state *cs = NULL;
4081                 if ( c->be->be_syncinfo ) {
4082                         syncinfo_t *si, **sip;
4083                         int i;
4084
4085                         cs = c->be->be_syncinfo->si_cookieState;
4086                         for ( sip = &c->be->be_syncinfo, i=0; *sip; i++ ) {
4087                                 si = *sip;
4088                                 if ( c->valx == -1 || i == c->valx ) {
4089                                         *sip = si->si_next;
4090                                         /* If the task is currently active, we have to leave
4091                                          * it running. It will exit on its own. This will only
4092                                          * happen when running on the cn=config DB.
4093                                          */
4094                                         if ( si->si_re &&
4095                                                 ldap_pvt_runqueue_isrunning( &slapd_rq, si->si_re ) ) {
4096                                                 si->si_ctype = 0;
4097                                         } else {
4098                                                 syncinfo_free( si, 0 );
4099                                         }
4100                                         if ( i == c->valx )
4101                                                 break;
4102                                 } else {
4103                                         sip = &si->si_next;
4104                                 }
4105                         }
4106                 }
4107                 if ( !c->be->be_syncinfo ) {
4108                         SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
4109                         if ( cs ) {
4110                                 ber_bvarray_free( cs->cs_vals );
4111                                 ldap_pvt_thread_mutex_destroy( &cs->cs_mutex );
4112                                 ch_free( cs );
4113                         }
4114                 }
4115                 return 0;
4116         }
4117         if ( SLAP_SLURP_SHADOW( c->be ) ) {
4118                 Debug(LDAP_DEBUG_ANY, "%s: "
4119                         "syncrepl: database already shadowed.\n",
4120                         c->log, 0, 0);
4121                 return(1);
4122         } else {
4123                 return add_syncrepl( c );
4124         }
4125 }