]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/syncrepl.c
declare overlays_init()
[openldap] / servers / slapd / syncrepl.c
index 1ef88a66e6f0a41b378f64f1cf28e1510394d9ee..0cd130e123de9513aa25cf56a33ee5fd6d689f70 100644 (file)
@@ -1,33 +1,19 @@
+/* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
 /* $OpenLDAP$ */
-/*
- * Replication Engine which uses the LDAP Sync protocol
- */
-/*
- * Copyright 2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- */
-/* Copyright (c) 2003 by International Business Machines, Inc.
- *
- * International Business Machines, Inc. (hereinafter called IBM) grants
- * permission under its copyrights to use, copy, modify, and distribute this
- * Software with or without fee, provided that the above copyright notice and
- * all paragraphs of this notice appear in all copies, and that the name of IBM
- * not be used in connection with the marketing of any product incorporating
- * the Software or modifications thereof, without specific, written prior
- * permission.
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
- * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
- * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
- */
-/* Modified by Howard Chu
+ * Copyright 2003 The OpenLDAP Foundation.
+ * Portions Copyright 2003 by IBM Corporation.
+ * Portions Copyright 2003 by Howard Chu, Symas Corporation.
+ * All rights reserved.
  *
- * Copyright (c) 2003 by Howard Chu, Symas Corporation
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
  *
- * Modifications provided under the terms of the OpenLDAP public license.
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
 
 #include "portable.h"
@@ -50,8 +36,9 @@
 static const struct berval slap_syncrepl_bvc = BER_BVC(SYNCREPL_STR);
 static const struct berval slap_syncrepl_cn_bvc = BER_BVC(CN_STR SYNCREPL_STR);
 
-static void
-syncrepl_del_nonpresent( Operation *, syncinfo_t * );
+static int syncuuid_cmp( const void *, const void * );
+static void avl_ber_bvfree( void * );
+static void syncrepl_del_nonpresent( Operation *, syncinfo_t * );
 
 /* callback functions */
 static int dn_callback( struct slap_op *, struct slap_rep * );
@@ -125,8 +112,8 @@ init_syncrepl(syncinfo_t *si)
 static int
 ldap_sync_search(
        syncinfo_t *si,
-       void *ctx,
-       struct berval *syncCookie )
+       void *ctx
+)
 {
        BerElementBuffer berbuf;
        BerElement *ber = (BerElement *)&berbuf;
@@ -139,8 +126,10 @@ ldap_sync_search(
        ber_init2( ber, NULL, LBER_USE_DER );
        ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 
-       if ( syncCookie ) {
-               ber_printf( ber, "{eO}", abs(si->si_type), syncCookie );
+       if ( si->si_syncCookie.octet_str &&
+                si->si_syncCookie.octet_str[0].bv_val ) {
+               ber_printf( ber, "{eO}", abs(si->si_type),
+                                       &si->si_syncCookie.octet_str[0] );
        } else {
                ber_printf( ber, "{e}", abs(si->si_type) );
        }
@@ -184,12 +173,15 @@ do_syncrep1(
        syncinfo_t *si )
 {
        int     rc;
+       int cmdline_cookie_found = 0;
 
        char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
        struct berval syncrepl_cn_bv;
-       BerVarray syncCookie;
+       struct sync_cookie      *sc = NULL;
+       struct sync_cookie      syncCookie = { NULL, -1, NULL };
+       struct berval   *psub;
 
-       si->si_sync_mode = LDAP_SYNC_STATE_MODE;
+       psub = &si->si_be->be_nsuffix[0];
 
        /* Init connection to master */
 
@@ -197,11 +189,11 @@ do_syncrep1(
        if ( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR,
-                       "do_syncrepl: ldap_initialize failed (%s)\n",
+                       "do_syncrep1: ldap_initialize failed (%s)\n",
                        si->si_provideruri, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY,
-                       "do_syncrepl: ldap_initialize failed (%s)\n",
+                       "do_syncrep1: ldap_initialize failed (%s)\n",
                        si->si_provideruri, 0, 0 );
 #endif
                return rc;
@@ -216,7 +208,7 @@ do_syncrep1(
                rc = ldap_start_tls_s( si->si_ld, NULL, NULL );
                if( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
+                       LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
                                "%s: ldap_start_tls failed (%d)\n",
                                si->si_tls == SYNCINFO_TLS_CRITICAL ? "Error" : "Warning",
                                rc, 0 );
@@ -272,11 +264,11 @@ do_syncrep1(
                 */
                if ( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
+                       LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
                                "ldap_sasl_interactive_bind_s failed (%d)\n",
                                rc, 0, 0 );
 #else
-                       Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
+                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
                                "ldap_sasl_interactive_bind_s failed (%d)\n",
                                rc, 0, 0 );
 #endif
@@ -292,10 +284,10 @@ do_syncrep1(
                rc = ldap_bind_s( si->si_ld, si->si_binddn, si->si_passwd, si->si_bindmethod );
                if ( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
+                       LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
                                "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 #else
-                       Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
+                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
                                "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 #endif
                        goto done;
@@ -304,32 +296,104 @@ do_syncrep1(
 
        /* get syncrepl cookie of shadow replica from subentry */
 
-       assert( si->si_id < 1000 );
+       assert( si->si_rid < 1000 );
        syncrepl_cn_bv.bv_val = syncrepl_cbuf;
        syncrepl_cn_bv.bv_len = snprintf(syncrepl_cbuf, sizeof(syncrepl_cbuf),
-               CN_STR "syncrepl%d", si->si_id );
-       build_new_dn( &op->o_req_ndn, &si->si_base, &syncrepl_cn_bv,
-               op->o_tmpmemctx );
+               CN_STR "syncrepl%ld", si->si_rid );
+       build_new_dn( &op->o_req_ndn, psub, &syncrepl_cn_bv, op->o_tmpmemctx );
        op->o_req_dn = op->o_req_ndn;
 
-       syncCookie = NULL;
-       backend_attribute( op, NULL, &op->o_req_ndn,
-               slap_schema.si_ad_syncreplCookie, &syncCookie );
+       LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
+               if ( si->si_rid == sc->rid ) {
+                       cmdline_cookie_found = 1;
+                       break;
+               }
+       }
+
+       if ( cmdline_cookie_found ) {
+               /* cookie is supplied in the command line */
+               BerVarray cookie = NULL;
+               struct berval cookie_bv;
+
+               LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
+               slap_sync_cookie_free( &si->si_syncCookie, 0 );
+
+               /* read stored cookie if it exists */
+               backend_attribute( op, NULL, &op->o_req_ndn,
+                       slap_schema.si_ad_syncreplCookie, &cookie );
+
+               if ( !cookie ) {
+                       /* no stored cookie */
+                       if ( sc->ctxcsn == NULL ||
+                                sc->ctxcsn->bv_val == NULL ) {
+                               /* if cmdline cookie does not have ctxcsn */
+                               /* component, set it to an initial value */
+                               slap_init_sync_cookie_ctxcsn( sc );
+                       }
+                       slap_dup_sync_cookie( &si->si_syncCookie, sc );
+                       slap_sync_cookie_free( sc, 1 );
+                       sc = NULL;
+               } else {
+                       /* stored cookie */
+                       struct berval newcookie = { 0, NULL };
+                       ber_dupbv( &cookie_bv, &cookie[0] );
+                       ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
+                       slap_parse_sync_cookie( &si->si_syncCookie );
+                       ber_bvarray_free( si->si_syncCookie.octet_str );
+                       si->si_syncCookie.octet_str = NULL;
+                       ber_bvarray_free_x( cookie, op->o_tmpmemctx );
+                       if ( sc->sid != -1 ) {
+                               /* command line cookie wins */
+                               si->si_syncCookie.sid = sc->sid;
+                       }
+                       if ( sc->ctxcsn != NULL ) {
+                               /* command line cookie wins */
+                               if ( si->si_syncCookie.ctxcsn ) {
+                                       ber_bvarray_free( si->si_syncCookie.ctxcsn );
+                                       si->si_syncCookie.ctxcsn = NULL;
+                               }
+                               ber_dupbv( &cookie_bv, &sc->ctxcsn[0] );
+                               ber_bvarray_add( &si->si_syncCookie.ctxcsn, &cookie_bv );
+                       }
+                       if ( sc->rid != -1 ) {
+                               /* command line cookie wins */
+                               si->si_syncCookie.rid = sc->rid;
+                       }
+                       slap_sync_cookie_free( sc, 1 );
+                       sc = NULL;
+                       slap_compose_sync_cookie( NULL, &newcookie,
+                                       &si->si_syncCookie.ctxcsn[0],
+                                       si->si_syncCookie.sid, si->si_syncCookie.rid );
+                       ber_bvarray_add( &si->si_syncCookie.octet_str, &newcookie );
+               }
+       } else {
+               /* no command line cookie is specified */
+               if ( si->si_syncCookie.octet_str == NULL ) {
+                       BerVarray cookie = NULL;
+                       struct berval cookie_bv;
+                       /* try to read stored cookie */
+                       backend_attribute( op, NULL, &op->o_req_ndn,
+                               slap_schema.si_ad_syncreplCookie, &cookie );
+                       if ( cookie ) {
+                               ber_dupbv( &cookie_bv, &cookie[0] );
+                               ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
+                               slap_parse_sync_cookie( &si->si_syncCookie );
+                               ber_bvarray_free_x( cookie, op->o_tmpmemctx );
+                       }
+               }
+       }
+
+       rc = ldap_sync_search( si, op->o_tmpmemctx );
 
-       rc = ldap_sync_search( si, op->o_tmpmemctx, syncCookie );
        if( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
+               LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
                        "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 #else
-               Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
+               Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
                        "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 #endif
        }
-       if ( syncCookie ) {
-               ber_dupbv( &si->si_syncCookie, syncCookie );
-               ber_bvarray_free_x( syncCookie, op->o_tmpmemctx );
-       }
 
 done:
        if ( rc ) {
@@ -359,20 +423,16 @@ do_syncrep2(
        char            *retoid = NULL;
        struct berval   *retdata = NULL;
 
-       int             sync_info_arrived = 0;
        Entry           *entry = NULL;
 
        int             syncstate;
        struct berval   syncUUID = { 0, NULL };
-       struct berval   syncCookie = { 0, NULL };
-       struct berval   syncCookie_req;
+       struct sync_cookie      syncCookie = { NULL, -1, NULL };
+       struct sync_cookie      syncCookie_req = { NULL, -1, NULL };
+       struct berval           cookie = { 0, NULL };
 
-       int     rc;
-       int     err;
+       int     rc, err, i;
        ber_len_t       len;
-       int     syncinfo_arrived = 0;
-
-       slap_callback   cb;
 
        int rc_efree;
 
@@ -385,22 +445,28 @@ do_syncrep2(
        struct timeval *tout_p = NULL;
        struct timeval tout = { 0, 0 };
 
+       int             refreshDeletes = 0;
+       int             refreshDone = 1;
+       BerVarray syncUUIDs = NULL;
+       ber_tag_t si_tag;
+
        if ( slapd_abrupt_shutdown ) {
                rc = -2;
                goto done;
        }
 
+       ber_init2( ber, NULL, LBER_USE_DER );
+       ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+
 #ifdef NEW_LOGGING
        LDAP_LOG ( OPERATION, DETAIL1, "do_syncrep2\n", 0, 0, 0 );
 #else
        Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
 #endif
 
-       op->o_callback = &cb;
-
        psub = &si->si_be->be_nsuffix[0];
 
-       syncCookie_req = si->si_syncCookie;
+       slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 
        if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ){
                tout_p = &tout;
@@ -419,28 +485,36 @@ do_syncrep2(
                  msg != NULL;
                  msg = ldap_next_message( si->si_ld, msg ) )
                {
-                       syncCookie.bv_len = 0; syncCookie.bv_val = NULL;
                        switch( ldap_msgtype( msg ) ) {
                        case LDAP_RES_SEARCH_ENTRY:
                                ldap_get_entry_controls( si->si_ld, msg, &rctrls );
-                               if ( rctrls ) {
-                                       rctrlp = *rctrls;
-                                       ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
-                                       ber_scanf( ber, "{em", &syncstate, &syncUUID );
-                                       if ( ber_peek_tag( ber, &len ) == LDAP_SYNC_TAG_COOKIE ) {
-                                               ber_scanf( ber, "m}", &syncCookie );
+                               /* we can't work without the control */
+                               if ( !rctrls ) {
+                                       rc = -1;
+                                       goto done;
+                               }
+                               rctrlp = *rctrls;
+                               ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
+                               ber_scanf( ber, "{em", &syncstate, &syncUUID );
+                               if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
+                                       ber_scanf( ber, "m}", &cookie );
+                                       if ( cookie.bv_val ) {
+                                               struct berval tmp_bv;
+                                               ber_dupbv( &tmp_bv, &cookie );
+                                               ber_bvarray_add( &syncCookie.octet_str, &tmp_bv );
                                        }
+                                       if ( syncCookie.octet_str &&
+                                                       syncCookie.octet_str[0].bv_val )
+                                               slap_parse_sync_cookie( &syncCookie );
                                }
                                entry = syncrepl_message_to_entry( si, op, msg,
                                        &modlist, syncstate );
-                               rc_efree = syncrepl_entry( si, op, entry, modlist,
-                                               syncstate, &syncUUID, !syncinfo_arrived );
-                               if ( syncCookie.bv_len ) {
+                               rc_efree = syncrepl_entry( si, op, entry, modlist, syncstate,
+                                                       &syncUUID, &syncCookie_req );
+                               if ( syncCookie.octet_str && syncCookie.octet_str[0].bv_val ) {
                                        syncrepl_updateCookie( si, op, psub, &syncCookie );
                                }
-                               if ( rctrls ) {
-                                       ldap_controls_free( rctrls );
-                               }
+                               ldap_controls_free( rctrls );
                                if ( modlist ) {
                                        slap_mods_free( modlist );
                                }
@@ -452,10 +526,10 @@ do_syncrep2(
                        case LDAP_RES_SEARCH_REFERENCE:
 #ifdef NEW_LOGGING
                                LDAP_LOG( OPERATION, ERR,
-                                       "do_syncrepl : reference received\n", 0, 0, 0 );
+                                       "do_syncrep2 : reference received\n", 0, 0, 0 );
 #else
                                Debug( LDAP_DEBUG_ANY,
-                                       "do_syncrepl : reference received\n", 0, 0, 0 );
+                                       "do_syncrep2 : reference received\n", 0, 0, 0 );
 #endif
                                break;
 
@@ -467,18 +541,37 @@ do_syncrep2(
                                        ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 
                                        ber_scanf( ber, "{" /*"}"*/);
-                                       if ( ber_peek_tag( ber, &len ) == LDAP_SYNC_TAG_COOKIE )
+                                       if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
                                        {
-                                               ber_scanf( ber, "m", &syncCookie );
+                                               ber_scanf( ber, "m", &cookie );
+                                               if ( cookie.bv_val ) {
+                                                       struct berval tmp_bv;
+                                                       ber_dupbv( &tmp_bv, &cookie );
+                                                       ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
+                                               }
+                                               if ( syncCookie.octet_str &&
+                                                                syncCookie.octet_str[0].bv_val )
+                                                       slap_parse_sync_cookie( &syncCookie );
+                                       }
+                                       if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
+                                       {
+                                               ber_scanf( ber, "b", &refreshDeletes );
                                        }
+                                       ber_scanf( ber, "}" );
                                }
-                               value_match( &match, slap_schema.si_ad_entryCSN,
-                                       slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
-                                       SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
-                                       &syncCookie_req, &syncCookie, &text );
-                               if ( syncCookie.bv_len && match < 0) {
-                                       syncrepl_updateCookie( si, op,
-                                               psub, &syncCookie );
+                               if ( syncCookie_req.ctxcsn == NULL ) {
+                                       match = -1;
+                               } else if ( syncCookie.ctxcsn == NULL ) {
+                                       match = 1;
+                               } else {
+                                       value_match( &match, slap_schema.si_ad_entryCSN,
+                                               slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
+                                               SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+                                               &syncCookie_req.ctxcsn[0], &syncCookie.ctxcsn[0], &text );
+                               }
+                               if ( syncCookie.octet_str && syncCookie.octet_str->bv_val
+                                        && match < 0 ) {
+                                       syncrepl_updateCookie( si, op, psub, &syncCookie );
                                }
                                if ( rctrls ) {
                                        ldap_controls_free( rctrls );
@@ -488,10 +581,11 @@ do_syncrep2(
                                         *      1) err code : LDAP_BUSY ...
                                         *      2) on err policy : stop service, stop sync, retry
                                         */
-                                       if ( si->si_sync_mode == LDAP_SYNC_STATE_MODE && match
-                                               < 0 )
-                                       {
+                                       if ( refreshDeletes == 0 && match < 0 ) {
                                                syncrepl_del_nonpresent( op, si );
+                                       } else {
+                                               avl_free( si->si_presentlist, avl_ber_bvfree );
+                                               si->si_presentlist = NULL;
                                        }
                                }
                                rc = -2;
@@ -502,65 +596,118 @@ do_syncrep2(
                                rc = ldap_parse_intermediate( si->si_ld, msg,
                                        &retoid, &retdata, NULL, 0 );
                                if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
-                                       sync_info_arrived = 1;
+                                       int             si_refreshDelete = 0;
+                                       int             si_refreshPresent = 0;
                                        ber_init2( ber, retdata, LBER_USE_DER );
-                                       ber_scanf( ber, "{e" /*"}"*/, &syncstate );
 
-                                       if ( ber_peek_tag( ber, &len )
-                                                               == LDAP_SYNC_TAG_COOKIE ) {
-                                               ber_scanf( ber, /*"{"*/ "m}", &syncCookie );
-                                       } else {
-                                               if ( syncstate == LDAP_SYNC_NEW_COOKIE ) {
+                                       switch ( si_tag = ber_peek_tag( ber, &len )) {
+                                       ber_tag_t tag;
+                                       case LDAP_TAG_SYNC_NEW_COOKIE:
+                                               ber_scanf( ber, "tm", &tag, &cookie );
+                                               break;
+                                       case LDAP_TAG_SYNC_REFRESH_DELETE:
+                                               si_refreshDelete = 1;
+                                       case LDAP_TAG_SYNC_REFRESH_PRESENT:
+                                               si_refreshPresent = 1;
+                                               ber_scanf( ber, "t{", &tag );
+                                               if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
+                                               {
+                                                       ber_scanf( ber, "m", &cookie );
+                                                       if ( cookie.bv_val ) {
+                                                               struct berval tmp_bv;
+                                                               ber_dupbv( &tmp_bv, &cookie );
+                                                               ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
+                                                       }
+                                                       if ( syncCookie.octet_str &&
+                                                                        syncCookie.octet_str[0].bv_val )
+                                                               slap_parse_sync_cookie( &syncCookie );
+                                               }
+                                               if ( ber_peek_tag( ber, &len ) ==
+                                                                       LDAP_TAG_REFRESHDONE )
+                                               {
+                                                       ber_scanf( ber, "b", &refreshDone );
+                                               }
+                                               ber_scanf( ber, "}" );
+                                               break;
+                                       case LDAP_TAG_SYNC_ID_SET:
+                                               ber_scanf( ber, "t{", &tag );
+                                               if ( ber_peek_tag( ber, &len ) ==
+                                                               LDAP_TAG_SYNC_COOKIE ) {
+                                                       ber_scanf( ber, "m", &cookie );
+                                                       if ( cookie.bv_val ) {
+                                                               struct berval tmp_bv;
+                                                               ber_dupbv( &tmp_bv, &cookie );
+                                                               ber_bvarray_add( &syncCookie.octet_str,
+                                                                                                &tmp_bv );
+                                                       }
+                                                       if ( syncCookie.octet_str &&
+                                                                        syncCookie.octet_str[0].bv_val )
+                                                               slap_parse_sync_cookie( &syncCookie );
+                                               }
+                                               if ( ber_peek_tag( ber, &len ) ==
+                                                                       LDAP_TAG_REFRESHDELETES )
+                                               {
+                                                       ber_scanf( ber, "b", &refreshDeletes );
+                                               }
+                                               ber_scanf( ber, "[W]", &syncUUIDs );
+                                               ber_scanf( ber, "}" );
+                                               for ( i = 0; syncUUIDs[i].bv_val; i++ ) {
+                                                       struct berval *syncuuid_bv;
+                                                       syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
+                                                       avl_insert( &si->si_presentlist,
+                                                                       (caddr_t) syncuuid_bv,
+                                                                       syncuuid_cmp, avl_dup_error );
+                                               }
+                                               ber_memfree_x( syncUUIDs, op->o_tmpmemctx );
+                                               break;
+                                       default:
 #ifdef NEW_LOGGING
-                                                       LDAP_LOG( OPERATION, ERR,
-                                                               "do_syncrepl : cookie required\n", 0, 0, 0 );
+                                       LDAP_LOG( OPERATION, ERR,
+                                               "do_syncrep2 : unknown syncinfo tag (%ld)\n",
+                                               (long) si_tag, 0, 0 );
 #else
-                                                       Debug( LDAP_DEBUG_ANY,
-                                                               "do_syncrepl : cookie required\n", 0, 0, 0 );
+                                       Debug( LDAP_DEBUG_ANY,
+                                               "do_syncrep2 : unknown syncinfo tag (%ld)\n",
+                                               (long) si_tag, 0, 0 );
 #endif
-                                               }
+                                               ldap_memfree( retoid );
+                                               ber_bvfree( retdata );
+                                               continue;
                                        }
 
-                                       value_match( &match, slap_schema.si_ad_entryCSN,
-                                               slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
-                                               SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
-                                               &syncCookie_req, &syncCookie, &text );
+                                       if ( syncCookie_req.ctxcsn == NULL ) {
+                                               match = -1;
+                                       } else if ( syncCookie.ctxcsn == NULL ) {
+                                               match = 1;
+                                       } else {
+                                               value_match( &match, slap_schema.si_ad_entryCSN,
+                                                       slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
+                                                       SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+                                                       &syncCookie_req.ctxcsn[0],
+                                                       &syncCookie.ctxcsn[0], &text );
+                                       }
 
-                                       if ( syncCookie.bv_len && match < 0 ) {
+                                       if ( syncCookie.ctxcsn && syncCookie.ctxcsn[0].bv_val
+                                                && match < 0 ) {
                                                syncrepl_updateCookie( si, op, psub, &syncCookie);
                                        }
 
-                                       if ( syncstate == LDAP_SYNC_STATE_MODE_DONE ) {
+                                       if ( si_refreshPresent == 1 ) {
                                                if ( match < 0 ) {
                                                        syncrepl_del_nonpresent( op, si );
                                                }
-                                               si->si_sync_mode = LDAP_SYNC_LOG_MODE;
-                                       } else if ( syncstate == LDAP_SYNC_LOG_MODE_DONE ) {
-                                               si->si_sync_mode = LDAP_SYNC_PERSIST_MODE;
-                                       } else if ( syncstate == LDAP_SYNC_REFRESH_DONE ) {
-                                               si->si_sync_mode = LDAP_SYNC_PERSIST_MODE;
-                                       } else if ( syncstate != LDAP_SYNC_NEW_COOKIE ||
-                                               syncstate != LDAP_SYNC_LOG_MODE_DONE )
-                                       {
-#ifdef NEW_LOGGING
-                                               LDAP_LOG( OPERATION, ERR,
-                                                       "do_syncrepl : unknown sync info\n", 0, 0, 0 );
-#else
-                                               Debug( LDAP_DEBUG_ANY,
-                                                       "do_syncrepl : unknown sync info\n", 0, 0, 0 );
-#endif
-                                       }
+                                       } 
 
                                        ldap_memfree( retoid );
                                        ber_bvfree( retdata );
                                        break;
                                } else {
 #ifdef NEW_LOGGING
-                                       LDAP_LOG( OPERATION, ERR,"do_syncrepl :"
+                                       LDAP_LOG( OPERATION, ERR,"do_syncrep2 :"
                                                " unknown intermediate "
                                                "response\n", 0, 0, 0 );
 #else
-                                       Debug( LDAP_DEBUG_ANY, "do_syncrepl : "
+                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
                                                "unknown intermediate response (%d)\n",
                                                rc, 0, 0 );
 #endif
@@ -571,45 +718,49 @@ do_syncrep2(
                                break;
                        default:
 #ifdef NEW_LOGGING
-                               LDAP_LOG( OPERATION, ERR, "do_syncrepl : "
+                               LDAP_LOG( OPERATION, ERR, "do_syncrep2 : "
                                        "unknown message\n", 0, 0, 0 );
 #else
-                               Debug( LDAP_DEBUG_ANY, "do_syncrepl : "
+                               Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
                                        "unknown message\n", 0, 0, 0 );
 #endif
                                break;
 
                        }
+                       if ( syncCookie.octet_str ) {
+                               slap_sync_cookie_free( &syncCookie_req, 0 );
+                               slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
+                               slap_sync_cookie_free( &syncCookie, 0 );
+                       }
                }
                ldap_msgfree( res );
                res = NULL;
        }
 
        if ( rc == -1 ) {
-               int errno;
                const char *errstr;
 
-               ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &errno );
-               errstr = ldap_err2string( errno );
+               ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
+               errstr = ldap_err2string( rc );
                
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR,
-                       "do_syncrepl : %s\n", errstr, 0, 0 );
+                       "do_syncrep2 : %s\n", errstr, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY,
-                       "do_syncrepl : %s\n", errstr, 0, 0 );
+                       "do_syncrep2 : %s\n", errstr, 0, 0 );
 #endif
        }
 
 done:
+       slap_sync_cookie_free( &syncCookie, 0 );
+       slap_sync_cookie_free( &syncCookie_req, 0 );
+
        if ( res ) ldap_msgfree( res );
 
        if ( rc && si->si_ld ) {
                ldap_unbind( si->si_ld );
                si->si_ld = NULL;
-               /* just close and report success */
-               if ( rc == -2 )
-                       rc = 0;
        }
 
        return rc;
@@ -626,6 +777,8 @@ do_syncrepl(
        Operation op = {0};
        int rc = LDAP_SUCCESS;
        int first = 0;
+       int dostop = 0;
+       ber_socket_t s;
 
 #ifdef NEW_LOGGING
        LDAP_LOG ( OPERATION, DETAIL1, "do_syncrepl\n", 0, 0, 0 );
@@ -644,6 +797,14 @@ do_syncrepl(
                return NULL;
        }
 
+       if ( slapd_abrupt_shutdown && si->si_ld ) {
+               ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
+               connection_client_stop( s );
+               ldap_unbind( si->si_ld );
+               si->si_ld = NULL;
+               return NULL;
+       }
+
        conn.c_connid = -1;
        conn.c_send_ldap_result = slap_send_ldap_result;
        conn.c_send_search_entry = slap_send_search_entry;
@@ -652,8 +813,7 @@ do_syncrepl(
        conn.c_peer_name = slap_empty_bv;
 
        /* set memory context */
-#define SLAB_SIZE 1048576
-       op.o_tmpmemctx = sl_mem_create( SLAB_SIZE, ctx );
+       op.o_tmpmemctx = sl_mem_create( SLMALLOC_SLAB_SIZE, ctx );
        op.o_tmpmfuncs = &sl_mfuncs;
 
        op.o_dn = si->si_updatedn;
@@ -665,6 +825,13 @@ do_syncrepl(
        op.o_conn = &conn;
        op.o_connid = op.o_conn->c_connid;
 
+       op.o_sync_state.ctxcsn = NULL;
+       op.o_sync_state.sid = -1;
+       op.o_sync_state.octet_str = NULL;
+       op.o_sync_slog_size = -1;
+       LDAP_STAILQ_FIRST( &op.o_sync_slog_list ) = NULL;
+       op.o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST(&op.o_sync_slog_list);
+
        /* Establish session, do search */
        if ( !si->si_ld ) {
                first = 1;
@@ -673,7 +840,6 @@ do_syncrepl(
 
        /* Process results */
        if ( rc == LDAP_SUCCESS ) {
-               ber_socket_t s;
                ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 
                rc = do_syncrep2( &op, si );
@@ -689,13 +855,11 @@ do_syncrepl(
                                } else {
                                        connection_client_enable( s );
                                }
-                       } else {
-                               connection_client_stop( s );
+                       } else if ( !first ) {
+                               dostop = 1;
                        }
                } else {
-                       ch_free( si->si_syncCookie.bv_val );
-                       si->si_syncCookie.bv_val = NULL;
-                       si->si_syncCookie.bv_len = 0;
+                       if ( rc == -2 ) rc = 0;
                }
        }
 
@@ -710,15 +874,21 @@ do_syncrepl(
                ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
        }
 
+       if ( dostop ) {
+               connection_client_stop( s );
+       }
+
        if ( rc && rc != LDAP_SERVER_DOWN ) {
                ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
-       } else if ( rc == LDAP_SERVER_DOWN ||
-               si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
-               rc = 0;
        } else {
-               rc = 1;
+               if ( rc == LDAP_SERVER_DOWN ||
+                       si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
+                       rc = 0;
+               } else {
+                       rc = 1;
+               }
+               ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, rc );
        }
-       ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, rc );
        ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
 
        return NULL;
@@ -780,7 +950,8 @@ syncrepl_message_to_entry(
        sl_free( ndn.bv_val, op->o_tmpmemctx );
        sl_free( dn.bv_val, op->o_tmpmemctx );
 
-       if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
+       if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE )
+       {
                return NULL;
        }
 
@@ -852,16 +1023,6 @@ done:
        return e;
 }
 
-int
-syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
-{
-       const struct berval *uuid1 = v_uuid1;
-       const struct berval *uuid2 = v_uuid2;
-       int rc = uuid1->bv_len - uuid2->bv_len;
-       if ( rc ) return rc;
-       return ( strcmp( uuid1->bv_val, uuid2->bv_val ) );
-}
-
 int
 syncrepl_entry(
        syncinfo_t* si,
@@ -870,21 +1031,22 @@ syncrepl_entry(
        Modifications* modlist,
        int syncstate,
        struct berval* syncUUID,
-       int refresh
+       struct sync_cookie* syncCookie_req
 )
 {
        Backend *be = op->o_bd;
-       slap_callback   cb;
+       slap_callback   cb = { NULL };
        struct berval   *syncuuid_bv = NULL;
+       struct berval   syncUUID_strrep = { 0, NULL };
 
        SlapReply       rs = {REP_RESULT};
        Filter f = {0};
        AttributeAssertion ava = {0};
        int rc = LDAP_SUCCESS;
        int ret = LDAP_SUCCESS;
+       const char *text;
 
-       if ( refresh &&
-               ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ))
+       if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ))
        {
                syncuuid_bv = ber_dupbv( NULL, syncUUID );
                avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
@@ -895,6 +1057,13 @@ syncrepl_entry(
                return e ? 1 : 0;
        }
 
+       f.f_choice = LDAP_FILTER_EQUALITY;
+       f.f_ava = &ava;
+       ava.aa_desc = slap_schema.si_ad_entryUUID;
+       slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
+       ava.aa_value = *syncUUID;
+       op->ors_filter = &f;
+
        op->ors_filterstr.bv_len = (sizeof("entryUUID=")-1) + syncUUID->bv_len;
        op->ors_filterstr.bv_val = (char *) sl_malloc(
                op->ors_filterstr.bv_len + 1, op->o_tmpmemctx ); 
@@ -903,11 +1072,6 @@ syncrepl_entry(
                syncUUID->bv_val, syncUUID->bv_len );
        op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
 
-       f.f_choice = LDAP_FILTER_EQUALITY;
-       f.f_ava = &ava;
-       ava.aa_desc = slap_schema.si_ad_entryUUID;
-       ava.aa_value = *syncUUID;
-       op->ors_filter = &f;
        op->ors_scope = LDAP_SCOPE_SUBTREE;
 
        /* get syncrepl cookie of shadow replica from subentry */
@@ -930,13 +1094,26 @@ syncrepl_entry(
        cb.sc_response = null_callback;
        cb.sc_private = si;
 
-       if ( rc == LDAP_SUCCESS && si->si_syncUUID_ndn.bv_val &&
-               si->si_sync_mode != LDAP_SYNC_LOG_MODE )
+       if ( rc == LDAP_SUCCESS && si->si_syncUUID_ndn.bv_val )
        {
+               char *subseq_ptr;
+
+               if ( syncstate != LDAP_SYNC_DELETE ) {
+                       op->o_no_psearch = 1;
+               }
+
+               ber_dupbv( &op->o_sync_csn, syncCookie_req->ctxcsn );
+               if ( op->o_sync_csn.bv_val ) {
+                       subseq_ptr = strstr( op->o_sync_csn.bv_val, "#0000" );
+                       subseq_ptr += 4;
+                       *subseq_ptr = '1';
+               }
+               
                op->o_req_dn = si->si_syncUUID_ndn;
                op->o_req_ndn = si->si_syncUUID_ndn;
                op->o_tag = LDAP_REQ_DELETE;
                rc = be->be_delete( op, &rs );
+               op->o_no_psearch = 0;
        }
 
        switch ( syncstate ) {
@@ -947,8 +1124,8 @@ syncrepl_entry(
                         rc == LDAP_NO_SUCH_OBJECT )
                {
                        attr_delete( &e->e_attrs, slap_schema.si_ad_entryUUID );
-                       attr_merge_normalize_one( e, slap_schema.si_ad_entryUUID,
-                               syncUUID, op->o_tmpmemctx );
+                       attr_merge_one( e, slap_schema.si_ad_entryUUID,
+                               syncUUID, &ava.aa_value );
 
                        op->o_tag = LDAP_REQ_ADD;
                        op->ora_e = e;
@@ -1011,15 +1188,7 @@ syncrepl_entry(
                }
 
        case LDAP_SYNC_DELETE :
-               if ( si->si_sync_mode == LDAP_SYNC_LOG_MODE ) {
-                       if ( si->si_syncUUID_ndn.bv_val ) {
-                               op->o_req_dn = si->si_syncUUID_ndn;
-                               op->o_req_ndn = si->si_syncUUID_ndn;
-                               op->o_tag = LDAP_REQ_DELETE;
-                               rc = be->be_delete( op, &rs );
-                       }
-               }
-               /* Already deleted otherwise */
+               /* Already deleted */
                ret = 1;
                goto done;
 
@@ -1037,6 +1206,9 @@ syncrepl_entry(
 
 done :
 
+       if ( syncUUID_strrep.bv_val ) {
+               ber_memfree_x( syncUUID_strrep.bv_val, op->o_tmpmemctx );
+       }
        if ( si->si_syncUUID_ndn.bv_val ) {
                ber_memfree_x( si->si_syncUUID_ndn.bv_val, op->o_tmpmemctx );
        }
@@ -1050,7 +1222,7 @@ syncrepl_del_nonpresent(
 )
 {
        Backend* be = op->o_bd;
-       slap_callback   cb;
+       slap_callback   cb = { NULL };
        SlapReply       rs = {REP_RESULT};
        struct nonpresent_entry *np_list, *np_prev;
 
@@ -1114,7 +1286,7 @@ syncrepl_add_glue(
 )
 {
        Backend *be = op->o_bd;
-       slap_callback cb;
+       slap_callback cb = { NULL };
        Attribute       *a;
        int     rc;
        int suffrdns;
@@ -1265,7 +1437,7 @@ syncrepl_updateCookie(
        syncinfo_t *si,
        Operation *op,
        struct berval *pdn,
-       struct berval *syncCookie
+       struct sync_cookie *syncCookie
 )
 {
        Backend *be = op->o_bd;
@@ -1286,9 +1458,12 @@ syncrepl_updateCookie(
        struct berval slap_syncrepl_dn_bv = BER_BVNULL;
        struct berval slap_syncrepl_cn_bv = BER_BVNULL;
        
-       slap_callback cb;
+       slap_callback cb = { NULL };
        SlapReply       rs = {REP_RESULT};
 
+       slap_sync_cookie_free( &si->si_syncCookie, 0 );
+       slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
+
        mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
        mod->sml_op = LDAP_MOD_REPLACE;
        mod->sml_desc = slap_schema.si_ad_objectClass;
@@ -1298,10 +1473,10 @@ syncrepl_updateCookie(
        modtail = &mod->sml_next;
 
        ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
-       assert( si->si_id < 1000 );
+       assert( si->si_rid < 1000 );
        cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
                slap_syncrepl_bvc.bv_len,
-               "syncrepl%d", si->si_id );
+               "syncrepl%ld", si->si_rid );
        mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
        mod->sml_op = LDAP_MOD_REPLACE;
        mod->sml_desc = slap_schema.si_ad_cn;
@@ -1311,7 +1486,7 @@ syncrepl_updateCookie(
        modtail = &mod->sml_next;
 
        if ( scbva[0].bv_val ) ch_free( scbva[0].bv_val );
-       ber_dupbv( &scbva[0], syncCookie );
+       ber_dupbv( &scbva[0], &si->si_syncCookie.octet_str[0] );
        mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
        mod->sml_op = LDAP_MOD_REPLACE;
        mod->sml_desc = slap_schema.si_ad_syncreplCookie;
@@ -1351,10 +1526,10 @@ syncrepl_updateCookie(
        e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
 
        slap_syncrepl_cn_bv.bv_val = syncrepl_cbuf;
-       assert( si->si_id < 1000 );
+       assert( si->si_rid < 1000 );
        slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
                slap_syncrepl_cn_bvc.bv_len,
-               "cn=syncrepl%d", si->si_id );
+               "cn=syncrepl%ld", si->si_rid );
 
        build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv,
                op->o_tmpmemctx );
@@ -1466,18 +1641,6 @@ done :
        return;
 }
 
-void
-avl_ber_bvfree( void *bv )
-{
-       if( bv == NULL ) {
-               return;
-       }
-       if ( ((struct berval *)bv)->bv_val != NULL ) {
-               ch_free ( ((struct berval *)bv)->bv_val );
-       }
-       ch_free ( (char *) bv );
-}
-
 static int
 dn_callback(
        Operation*      op,
@@ -1603,3 +1766,83 @@ slap_create_syncrepl_entry(
 
        return e;
 }
+
+struct berval *
+slap_uuidstr_from_normalized(
+       struct berval* uuidstr,
+       struct berval* normalized,
+       void *ctx )
+{
+       struct berval *new;
+       unsigned char nibble;
+       int i, d = 0;
+
+       if ( normalized == NULL )
+               return NULL;
+
+       if ( normalized->bv_len != 16 ) {
+               return NULL;
+       }
+
+       if ( uuidstr ) {
+               new = uuidstr;
+       } else {
+               new = (struct berval *)sl_malloc( sizeof(struct berval), ctx );
+       }
+
+       new->bv_len = 36;
+
+       if (( new->bv_val = sl_malloc( new->bv_len + 1, ctx )) == NULL) {
+               if ( !uuidstr )
+                       sl_free( new, ctx );
+               return NULL;
+       }
+
+       for ( i = 0; i < 16; i++ ) {
+               if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
+                       new->bv_val[(i<<1)+d] = '-';
+                       d += 1;
+               }
+
+               nibble = (normalized->bv_val[i] >> 4) & 0xF;
+               if ( nibble < 10 ) {
+                       new->bv_val[(i<<1)+d] = nibble + '0';
+               } else {
+                       new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
+               }
+
+               nibble = (normalized->bv_val[i]) & 0xF;
+               if ( nibble < 10 ) {
+                       new->bv_val[(i<<1)+d+1] = nibble + '0';
+               } else {
+                       new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
+               }
+       }
+
+       new->bv_val[new->bv_len] = '\0';
+
+       return new;
+}
+
+static int
+syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
+{
+       const struct berval *uuid1 = v_uuid1;
+       const struct berval *uuid2 = v_uuid2;
+       int rc = uuid1->bv_len - uuid2->bv_len;
+       if ( rc ) return rc;
+       return ( strcmp( uuid1->bv_val, uuid2->bv_val ) );
+}
+
+static void
+avl_ber_bvfree( void *bv )
+{
+       if( bv == NULL ) {
+               return;
+       }
+       if ( ((struct berval *)bv)->bv_val != NULL ) {
+               ch_free ( ((struct berval *)bv)->bv_val );
+       }
+       ch_free ( (char *) bv );
+}
+