]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/syncrepl.c
Note ITS#4563 was fixed in 2.3.27
[openldap] / servers / slapd / syncrepl.c
index 4c1cbf49f0bd77468316b2e064f47edef336dc92..671abef3d27f815fe234c8aa173c196f6d09e972 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2003-2005 The OpenLDAP Foundation.
+ * Copyright 2003-2007 The OpenLDAP Foundation.
  * Portions Copyright 2003 by IBM Corporation.
  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
  * All rights reserved.
@@ -44,11 +44,15 @@ struct nonpresent_entry {
 #define        SYNCLOG_LOGGING         0       /* doing a log-based update */
 #define        SYNCLOG_FALLBACK        1       /* doing a full refresh */
 
+#define RETRYNUM_FOREVER       (-1)    /* retry forever */
+#define RETRYNUM_TAIL          (-2)    /* end of retrynum array */
+#define RETRYNUM_VALID(n)      ((n) >= RETRYNUM_FOREVER)       /* valid retrynum */
+#define RETRYNUM_FINITE(n)     ((n) > RETRYNUM_FOREVER)        /* not forever */
+
 typedef struct syncinfo_s {
        struct slap_backend_db *si_be;
        struct re_s                     *si_re;
-       long                            si_rid;
-       struct berval           si_provideruri;
+       int                                     si_rid;
        slap_bindconf           si_bindconf;
        struct berval           si_base;
        struct berval           si_logbase;
@@ -87,7 +91,7 @@ typedef struct syncinfo_s {
 
 static int syncuuid_cmp( const void *, const void * );
 static void avl_ber_bvfree( void * );
-static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray );
+static void syncrepl_del_nonpresent( Operation *, syncinfo_t *, BerVarray, struct berval * );
 static int syncrepl_message_to_op(
                                        syncinfo_t *, Operation *, LDAPMessage * );
 static int syncrepl_message_to_entry(
@@ -189,7 +193,7 @@ init_syncrepl(syncinfo_t *si)
                }
 
                if ( attrs == NULL ) {
-                       Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
+                       Debug( LDAP_DEBUG_ANY, "out of memory\n", 0, 0, 0 );
                }
 
                /* Add Attributes */
@@ -350,7 +354,7 @@ ldap_sync_search(
                filter = si->si_logfilterstr.bv_val;
                attrs = lattrs;
                attrsonly = 0;
-               scope = LDAP_SCOPE_ONELEVEL;
+               scope = LDAP_SCOPE_SUBTREE;
        } else {
                rhint = 1;
                base = si->si_base.bv_val;
@@ -420,11 +424,11 @@ do_syncrep1(
        psub = &si->si_be->be_nsuffix[0];
 
        /* Init connection to master */
-       rc = ldap_initialize( &si->si_ld, si->si_provideruri.bv_val );
+       rc = ldap_initialize( &si->si_ld, si->si_bindconf.sb_uri.bv_val );
        if ( rc != LDAP_SUCCESS ) {
                Debug( LDAP_DEBUG_ANY,
-                       "do_syncrep1: ldap_initialize failed (%s)\n",
-                       si->si_provideruri.bv_val, 0, 0 );
+                       "do_syncrep1: rid %03d ldap_initialize failed (%s)\n",
+                       si->si_rid, si->si_bindconf.sb_uri.bv_val, 0 );
                return rc;
        }
 
@@ -437,9 +441,9 @@ do_syncrep1(
                rc = ldap_start_tls_s( si->si_ld, NULL, NULL );
                if( rc != LDAP_SUCCESS ) {
                        Debug( LDAP_DEBUG_ANY,
-                               "%s: ldap_start_tls failed (%d)\n",
+                               "%s: rid %03d ldap_start_tls failed (%d)\n",
                                si->si_bindconf.sb_tls == SB_TLS_CRITICAL ? "Error" : "Warning",
-                               rc, 0 );
+                               si->si_rid, rc );
                        if( si->si_bindconf.sb_tls == SB_TLS_CRITICAL ) goto done;
                }
        }
@@ -453,9 +457,9 @@ do_syncrep1(
                                LDAP_OPT_X_SASL_SECPROPS, si->si_bindconf.sb_secprops);
 
                        if( rc != LDAP_OPT_SUCCESS ) {
-                               Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
+                               Debug( LDAP_DEBUG_ANY, "Error: rid %03d ldap_set_option "
                                        "(%s,SECPROPS,\"%s\") failed!\n",
-                                       si->si_provideruri.bv_val, si->si_bindconf.sb_secprops, 0 );
+                                       si->si_rid, si->si_bindconf.sb_uri.bv_val, si->si_bindconf.sb_secprops );
                                goto done;
                        }
                }
@@ -484,9 +488,9 @@ do_syncrep1(
                if ( rc != LDAP_SUCCESS ) {
                        static struct berval bv_GSSAPI = BER_BVC( "GSSAPI" );
 
-                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
+                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: rid %03d "
                                "ldap_sasl_interactive_bind_s failed (%d)\n",
-                               rc, 0, 0 );
+                               si->si_rid, rc, 0 );
 
                        /* FIXME (see above comment) */
                        /* if Kerberos credentials cache is not active, retry */
@@ -501,7 +505,7 @@ do_syncrep1(
 #else /* HAVE_CYRUS_SASL */
                /* Should never get here, we trapped this at config time */
                assert(0);
-               fprintf( stderr, "not compiled with SASL support\n" );
+               Debug( LDAP_DEBUG_SYNC, "not compiled with SASL support\n", 0, 0, 0 );
                rc = LDAP_OTHER;
                goto done;
 #endif
@@ -511,8 +515,8 @@ do_syncrep1(
                        si->si_bindconf.sb_binddn.bv_val, LDAP_SASL_SIMPLE,
                        &si->si_bindconf.sb_cred, NULL, NULL, NULL );
                if ( rc != LDAP_SUCCESS ) {
-                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
-                               "ldap_sasl_bind_s failed (%d)\n", rc, 0, 0 );
+                       Debug( LDAP_DEBUG_ANY, "do_syncrep1: rid %03d "
+                               "ldap_sasl_bind_s failed (%d)\n", si->si_rid, rc, 0 );
                        goto done;
                }
        }
@@ -583,8 +587,9 @@ do_syncrep1(
        rc = ldap_sync_search( si, op->o_tmpmemctx );
 
        if( rc != LDAP_SUCCESS ) {
-               Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
-                       "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
+               Debug( LDAP_DEBUG_ANY, "do_syncrep1: rid %03d "
+                       "ldap_search_ext: %s (%d)\n",
+                       si->si_rid, ldap_err2string( rc ), rc );
        }
 
 done:
@@ -650,7 +655,7 @@ do_syncrep2(
        ber_init2( ber, NULL, LBER_USE_DER );
        ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 
-       Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
+       Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2 rid %03d\n", si->si_rid, 0, 0 );
 
        psub = &si->si_be->be_nsuffix[0];
 
@@ -682,16 +687,24 @@ do_syncrep2(
                                ldap_get_entry_controls( si->si_ld, msg, &rctrls );
                                /* we can't work without the control */
                                if ( !rctrls ) {
-                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2: "
+                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2: rid %03d"
                                                "got search entry without "
-                                               "control\n", 0, 0, 0 );
+                                               "control\n", si->si_rid, 0, 0 );
                                        rc = -1;
                                        goto done;
                                }
                                rctrlp = *rctrls;
                                ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
                                ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
-                               /* FIXME: what if syncUUID is NULL or empty? */
+                               /* FIXME: what if syncUUID is NULL or empty?
+                                * (happens with back-sql...) */
+                               if ( BER_BVISEMPTY( &syncUUID ) ) {
+                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2: rid %03d "
+                                               "got empty syncUUID\n", si->si_rid, 0, 0 );
+                                       ldap_controls_free( rctrls );
+                                       rc = -1;
+                                       goto done;
+                               }
                                if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
                                        ber_scanf( ber, /*"{"*/ "m}", &cookie );
                                        if ( !BER_BVISNULL( &cookie ) ) {
@@ -731,12 +744,14 @@ do_syncrep2(
 
                        case LDAP_RES_SEARCH_REFERENCE:
                                Debug( LDAP_DEBUG_ANY,
-                                       "do_syncrep2: reference received error\n", 0, 0, 0 );
+                                       "do_syncrep2: rid %03d reference received error\n",
+                                       si->si_rid, 0, 0 );
                                break;
 
                        case LDAP_RES_SEARCH_RESULT:
                                Debug( LDAP_DEBUG_SYNC,
-                                       "do_syncrep2: LDAP_RES_SEARCH_RESULT\n", 0, 0, 0 );
+                                       "do_syncrep2: rid %03d LDAP_RES_SEARCH_RESULT\n",
+                                       si->si_rid, 0, 0 );
                                ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
                                        &rctrls, 0 );
 #ifdef LDAP_X_SYNC_REFRESH_REQUIRED
@@ -750,7 +765,7 @@ do_syncrep2(
                                                si->si_logstate = SYNCLOG_FALLBACK;
                                        }
                                        rc = err;
-                                       break;
+                                       goto done;
                                }
                                if ( rctrls ) {
                                        rctrlp = *rctrls;
@@ -785,11 +800,6 @@ do_syncrep2(
                                                &syncCookie_req.ctxcsn, &syncCookie.ctxcsn,
                                                &text );
                                }
-                               if ( !BER_BVISNULL( &syncCookie.ctxcsn ) &&
-                                       match < 0 && err == LDAP_SUCCESS )
-                               {
-                                       syncrepl_updateCookie( si, op, psub, &syncCookie );
-                               }
                                if ( rctrls ) {
                                        ldap_controls_free( rctrls );
                                }
@@ -801,12 +811,17 @@ do_syncrep2(
                                        if ( refreshDeletes == 0 && match < 0 &&
                                                err == LDAP_SUCCESS )
                                        {
-                                               syncrepl_del_nonpresent( op, si, NULL );
+                                               syncrepl_del_nonpresent( op, si, NULL, &syncCookie.ctxcsn );
                                        } else {
                                                avl_free( si->si_presentlist, avl_ber_bvfree );
                                                si->si_presentlist = NULL;
                                        }
                                }
+                               if ( !BER_BVISNULL( &syncCookie.ctxcsn ) &&
+                                       match < 0 && err == LDAP_SUCCESS )
+                               {
+                                       syncrepl_updateCookie( si, op, psub, &syncCookie );
+                               }
                                if ( err == LDAP_SUCCESS
                                        && si->si_logstate == SYNCLOG_FALLBACK ) {
                                        si->si_logstate = SYNCLOG_LOGGING;
@@ -827,19 +842,20 @@ do_syncrep2(
                                        ber_tag_t tag;
                                        case LDAP_TAG_SYNC_NEW_COOKIE:
                                                Debug( LDAP_DEBUG_SYNC,
-                                                       "do_syncrep2: %s - %s%s\n", 
+                                                       "do_syncrep2: rid %03d %s - %s\n", 
+                                                       si->si_rid,
                                                        "LDAP_RES_INTERMEDIATE", 
-                                                       "NEW_COOKIE", "\n" );
+                                                       "NEW_COOKIE" );
                                                ber_scanf( ber, "tm", &tag, &cookie );
                                                break;
                                        case LDAP_TAG_SYNC_REFRESH_DELETE:
                                        case LDAP_TAG_SYNC_REFRESH_PRESENT:
                                                Debug( LDAP_DEBUG_SYNC,
-                                                       "do_syncrep2: %s - %s%s\n", 
+                                                       "do_syncrep2: rid %03d %s - %s\n", 
+                                                       si->si_rid,
                                                        "LDAP_RES_INTERMEDIATE", 
                                                        si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
-                                                       "REFRESH_PRESENT" : "REFRESH_DELETE",
-                                                       "\n" );
+                                                       "REFRESH_PRESENT" : "REFRESH_DELETE" );
                                                if ( si_tag == LDAP_TAG_SYNC_REFRESH_DELETE ) {
                                                        si->si_refreshDelete = 1;
                                                } else {
@@ -867,10 +883,10 @@ do_syncrep2(
                                                break;
                                        case LDAP_TAG_SYNC_ID_SET:
                                                Debug( LDAP_DEBUG_SYNC,
-                                                       "do_syncrep2: %s - %s%s\n", 
+                                                       "do_syncrep2: rid %03d %s - %s\n", 
+                                                       si->si_rid,
                                                        "LDAP_RES_INTERMEDIATE", 
-                                                       "SYNC_ID_SET",
-                                                       "\n" );
+                                                       "SYNC_ID_SET" );
                                                ber_scanf( ber, "t{" /*"}"*/, &tag );
                                                if ( ber_peek_tag( ber, &len ) ==
                                                        LDAP_TAG_SYNC_COOKIE )
@@ -893,7 +909,8 @@ do_syncrep2(
                                                ber_scanf( ber, "[W]", &syncUUIDs );
                                                ber_scanf( ber, /*"{"*/ "}" );
                                                if ( refreshDeletes ) {
-                                                       syncrepl_del_nonpresent( op, si, syncUUIDs );
+                                                       syncrepl_del_nonpresent( op, si, syncUUIDs,
+                                                               &syncCookie.ctxcsn );
                                                        ber_bvarray_free_x( syncUUIDs, op->o_tmpmemctx );
                                                } else {
                                                        for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
@@ -906,11 +923,12 @@ do_syncrep2(
                                                        }
                                                        slap_sl_free( syncUUIDs, op->o_tmpmemctx );
                                                }
+                                               slap_sync_cookie_free( &syncCookie, 0 );
                                                break;
                                        default:
                                                Debug( LDAP_DEBUG_ANY,
-                                                       "do_syncrep2 : unknown syncinfo tag (%ld)\n",
-                                               (long) si_tag, 0, 0 );
+                                                       "do_syncrep2: rid %03d unknown syncinfo tag (%ld)\n",
+                                                       si->si_rid, (long) si_tag, 0 );
                                                ldap_memfree( retoid );
                                                ber_bvfree( retdata );
                                                continue;
@@ -928,15 +946,13 @@ do_syncrep2(
                                                        &syncCookie.ctxcsn, &text );
                                        }
 
-                                       if ( !BER_BVISNULL( &syncCookie.ctxcsn ) &&
-                                               match < 0 )
-                                       {
-                                               syncrepl_updateCookie( si, op, psub, &syncCookie);
-                                       }
-
-                                       if ( si->si_refreshPresent == 1 ) {
-                                               if ( match < 0 ) {
-                                                       syncrepl_del_nonpresent( op, si, NULL );
+                                       if ( match < 0 ) {
+                                               if ( si->si_refreshPresent == 1 ) {
+                                                       syncrepl_del_nonpresent( op, si, NULL, &syncCookie.ctxcsn );
+                                               }
+                                               if ( !BER_BVISNULL( &syncCookie.ctxcsn ))
+                                               {
+                                                       syncrepl_updateCookie( si, op, psub, &syncCookie);
                                                }
                                        } 
 
@@ -945,9 +961,9 @@ do_syncrep2(
                                        break;
 
                                } else {
-                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
+                                       Debug( LDAP_DEBUG_ANY, "do_syncrep2: rid %03d "
                                                "unknown intermediate response (%d)\n",
-                                               rc, 0, 0 );
+                                               si->si_rid, rc, 0 );
                                        ldap_memfree( retoid );
                                        ber_bvfree( retdata );
                                        break;
@@ -955,8 +971,8 @@ do_syncrep2(
                                break;
 
                        default:
-                               Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
-                                       "unknown message\n", 0, 0, 0 );
+                               Debug( LDAP_DEBUG_ANY, "do_syncrep2: rid %03d "
+                                       "unknown message\n", si->si_rid, 0, 0 );
                                break;
 
                        }
@@ -977,7 +993,7 @@ do_syncrep2(
                errstr = ldap_err2string( rc );
                
                Debug( LDAP_DEBUG_ANY,
-                       "do_syncrep2 : %s\n", errstr, 0, 0 );
+                       "do_syncrep2: rid %03d %s\n", si->si_rid, errstr, 0 );
        }
 
 done:
@@ -1013,10 +1029,10 @@ do_syncrepl(
        int rc = LDAP_SUCCESS;
        int dostop = 0;
        ber_socket_t s;
-       int i, defer = 1;
+       int i, defer = 1, fail = 0;
        Backend *be;
 
-       Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
+       Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl rid %03d\n", si->si_rid, 0, 0 );
 
        if ( si == NULL )
                return NULL;
@@ -1119,31 +1135,49 @@ reload:
                rtask->interval.tv_sec = si->si_interval;
                ldap_pvt_runqueue_resched( &slapd_rq, rtask, defer );
                if ( si->si_retrynum ) {
-                       for ( i = 0; si->si_retrynum_init[i] != -2; i++ ) {
+                       for ( i = 0; si->si_retrynum_init[i] != RETRYNUM_TAIL; i++ ) {
                                si->si_retrynum[i] = si->si_retrynum_init[i];
                        }
-                       si->si_retrynum[i] = -2;
+                       si->si_retrynum[i] = RETRYNUM_TAIL;
                }
        } else {
                for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
-                       if ( si->si_retrynum[i] == -1  || si->si_retrynum[i] == -2 )
+                       if ( si->si_retrynum[i] == RETRYNUM_FOREVER || si->si_retrynum[i] == RETRYNUM_TAIL )
                                break;
                }
 
-               if ( !si->si_retrynum || si->si_retrynum[i] == -2 ) {
+               if ( !si->si_retrynum || si->si_retrynum[i] == RETRYNUM_TAIL ) {
                        ldap_pvt_runqueue_remove( &slapd_rq, rtask );
-               } else if ( si->si_retrynum[i] >= -1 ) {
+                       fail = RETRYNUM_TAIL;
+               } else if ( RETRYNUM_VALID( si->si_retrynum[i] ) ) {
                        if ( si->si_retrynum[i] > 0 )
                                si->si_retrynum[i]--;
+                       fail = si->si_retrynum[i];
                        rtask->interval.tv_sec = si->si_retryinterval[i];
                        ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
                        slap_wake_listener();
                }
        }
-       
+
        ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
        ldap_pvt_thread_mutex_unlock( &si->si_mutex );
 
+       if ( rc ) {
+               if ( fail == RETRYNUM_TAIL ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "do_syncrepl: rid %03d quitting\n",
+                               si->si_rid, 0, 0 );
+               } else if ( fail > 0 ) {
+                       Debug( LDAP_DEBUG_ANY,
+                               "do_syncrepl: rid %03d retrying (%d retries left)\n",
+                               si->si_rid, fail, 0 );
+               } else {
+                       Debug( LDAP_DEBUG_ANY,
+                               "do_syncrepl: rid %03d retrying\n",
+                               si->si_rid, 0, 0 );
+               }
+       }
+
        return NULL;
 }
 
@@ -1175,7 +1209,7 @@ syncrepl_accesslog_mods(
                ad = NULL;
                bv = vals[i];
 
-               colon = strchr( bv.bv_val, ':' );
+               colon = ber_bvchr( &bv, ':' );
                if ( !colon )
                        continue;       /* invalid */
                bv.bv_len = colon - bv.bv_val;
@@ -1253,11 +1287,12 @@ syncrepl_message_to_op(
        struct berval   rdn = BER_BVNULL, sup = BER_BVNULL,
                prdn = BER_BVNULL, nrdn = BER_BVNULL,
                psup = BER_BVNULL, nsup = BER_BVNULL;
-       int             rc, deleteOldRdn = 0;
+       int             rc, deleteOldRdn = 0, freeReqDn = 0;
 
        if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
-               Debug( LDAP_DEBUG_ANY,
-                       "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
+               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: rid %03d "
+                       "Message type should be entry (%d)",
+                       si->si_rid, ldap_msgtype( msg ), 0 );
                return -1;
        }
 
@@ -1270,7 +1305,8 @@ syncrepl_message_to_op(
 
        if ( rc != LDAP_SUCCESS ) {
                Debug( LDAP_DEBUG_ANY,
-                       "syncrepl_message_to_op : dn get failed (%d)", rc, 0, 0 );
+                       "syncrepl_message_to_op: rid %03d dn get failed (%d)",
+                       si->si_rid, rc, 0 );
                return rc;
        }
 
@@ -1288,12 +1324,13 @@ syncrepl_message_to_op(
                        ber_dupbv( &op->o_req_ndn, &ndn );
                        slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
                        slap_sl_free( dn.bv_val, op->o_tmpmemctx );
+                       freeReqDn = 1;
                } else if ( !ber_bvstrcasecmp( &bv, &ls->ls_req )) {
                        int i = verb_to_mask( bvals[0].bv_val, modops );
                        if ( i < 0 ) {
                                Debug( LDAP_DEBUG_ANY,
-                                       "syncrepl_message_to_op : unknown op %s",
-                                       bvals[0].bv_val, 0, 0 );
+                                       "syncrepl_message_to_op: rid %03d unknown op %s",
+                                       si->si_rid, bvals[0].bv_val, 0 );
                                ch_free( bvals );
                                rc = -1;
                                goto done;
@@ -1326,6 +1363,7 @@ syncrepl_message_to_op(
        }
 
        op->o_callback = &cb;
+       slap_op_time( &op->o_time, &op->o_tincr );
 
        switch( op->o_tag ) {
        case LDAP_REQ_ADD:
@@ -1336,8 +1374,9 @@ syncrepl_message_to_op(
                rc = slap_mods_check( modlist, &text, txtbuf, textlen, NULL );
 
                if ( rc != LDAP_SUCCESS ) {
-                       Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: mods check (%s)\n",
-                               text, 0, 0 );
+                       Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: rid %03d "
+                               "mods check (%s)\n",
+                               si->si_rid, text, 0 );
                        goto done;
                }
 
@@ -1345,17 +1384,26 @@ syncrepl_message_to_op(
                        op->ora_e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
                        op->ora_e->e_name = op->o_req_dn;
                        op->ora_e->e_nname = op->o_req_ndn;
+                       freeReqDn = 0;
                        rc = slap_mods2entry( modlist, &op->ora_e, 1, 0, &text, txtbuf, textlen);
                        if( rc != LDAP_SUCCESS ) {
-                               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: mods2entry (%s)\n",
-                                       text, 0, 0 );
+                               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_op: rid %03d "
+                               "mods2entry (%s)\n",
+                                       si->si_rid, text, 0 );
                        } else {
                                rc = op->o_bd->be_add( op, &rs );
+                               Debug( LDAP_DEBUG_SYNC,
+                                       "syncrepl_message_to_op: rid %03d be_add %s (%d)\n", 
+                                       si->si_rid, op->o_req_dn.bv_val, rc );
                        }
                        be_entry_release_w( op, op->ora_e );
                } else {
                        op->orm_modlist = modlist;
                        rc = op->o_bd->be_modify( op, &rs );
+                       modlist = op->orm_modlist;
+                       Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
+                               "syncrepl_message_to_op: rid %03d be_modify %s (%d)\n", 
+                               si->si_rid, op->o_req_dn.bv_val, rc );
                }
                break;
        case LDAP_REQ_MODRDN:
@@ -1370,18 +1418,29 @@ syncrepl_message_to_op(
                                goto done;
                        op->orr_newSup = &psup;
                        op->orr_nnewSup = &nsup;
+               } else {
+                       op->orr_newSup = NULL;
+                       op->orr_nnewSup = NULL;
                }
                op->orr_newrdn = prdn;
                op->orr_nnewrdn = nrdn;
                op->orr_deleteoldrdn = deleteOldRdn;
                rc = op->o_bd->be_modrdn( op, &rs );
+               Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
+                       "syncrepl_message_to_op: rid %03d be_modrdn %s (%d)\n", 
+                       si->si_rid, op->o_req_dn.bv_val, rc );
                break;
        case LDAP_REQ_DELETE:
                rc = op->o_bd->be_delete( op, &rs );
+               Debug( rc ? LDAP_DEBUG_ANY : LDAP_DEBUG_SYNC,
+                       "syncrepl_message_to_op: rid %03d be_delete %s (%d)\n", 
+                       si->si_rid, op->o_req_dn.bv_val, rc );
                break;
        }
 done:
        slap_graduate_commit_csn( op );
+       op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
+       BER_BVZERO( &op->o_csn );
        if ( modlist )
                slap_mods_free( modlist, op->o_tag != LDAP_REQ_ADD );
        if ( !BER_BVISNULL( &rdn )) {
@@ -1394,6 +1453,10 @@ done:
                if ( !BER_BVISNULL( &prdn ))
                        ch_free( prdn.bv_val );
        }
+       if ( freeReqDn ) {
+               ch_free( op->o_req_ndn.bv_val );
+               ch_free( op->o_req_dn.bv_val );
+       }
        ber_free ( ber, 0 );
        return rc;
 }
@@ -1418,24 +1481,25 @@ syncrepl_message_to_entry(
        char txtbuf[SLAP_TEXT_BUFLEN];
        size_t textlen = sizeof txtbuf;
 
-       struct berval   bdn = {0, NULL}, dn, ndn;
+       struct berval   bdn = BER_BVNULL, dn, ndn;
        int             rc;
 
        *modlist = NULL;
 
        if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
-               Debug( LDAP_DEBUG_ANY,
-                       "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
+               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: rid %03d "
+                       "Message type should be entry (%d)",
+                       si->si_rid, ldap_msgtype( msg ), 0 );
                return -1;
        }
 
        op->o_tag = LDAP_REQ_ADD;
 
        rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
-
        if ( rc != LDAP_SUCCESS ) {
                Debug( LDAP_DEBUG_ANY,
-                       "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
+                       "syncrepl_message_to_entry: rid %03d dn get failed (%d)",
+                       si->si_rid, rc, 0 );
                return rc;
        }
 
@@ -1446,13 +1510,15 @@ syncrepl_message_to_entry(
        slap_sl_free( dn.bv_val, op->o_tmpmemctx );
 
        if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
-               if ( entry )
-                       *entry = NULL;
-               return LDAP_SUCCESS;
+               /* NOTE: this could be done even before decoding the DN,
+                * although encoding errors wouldn't be detected */
+               rc = LDAP_SUCCESS;
+               goto done;
        }
 
        if ( entry == NULL ) {
-               return -1;
+               rc = -1;
+               goto done;
        }
 
        e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
@@ -1482,8 +1548,8 @@ syncrepl_message_to_entry(
        }
 
        if ( *modlist == NULL ) {
-               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
-                       0, 0, 0 );
+               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: rid %03d no attributes\n",
+                       si->si_rid, 0, 0 );
                rc = -1;
                goto done;
        }
@@ -1491,8 +1557,8 @@ syncrepl_message_to_entry(
        rc = slap_mods_check( *modlist, &text, txtbuf, textlen, NULL );
 
        if ( rc != LDAP_SUCCESS ) {
-               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
-                       text, 0, 0 );
+               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: rid %03d mods check (%s)\n",
+                       si->si_rid, text, 0 );
                goto done;
        }
 
@@ -1523,12 +1589,12 @@ syncrepl_message_to_entry(
        
        rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
        if( rc != LDAP_SUCCESS ) {
-               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
-                       text, 0, 0 );
+               Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: rid %03d mods2entry (%s)\n",
+                       si->si_rid, text, 0 );
        }
 
 done:
-       ber_free ( ber, 0 );
+       ber_free( ber, 0 );
        if ( rc != LDAP_SUCCESS ) {
                if ( e ) {
                        entry_free( e );
@@ -1605,28 +1671,28 @@ syncrepl_entry(
 
        switch( syncstate ) {
        case LDAP_SYNC_PRESENT:
-               Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
-                                       "syncrepl_entry",
+               Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: rid %03d %s\n",
+                                       si->si_rid,
                                        "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
                break;
        case LDAP_SYNC_ADD:
-               Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
-                                       "syncrepl_entry",
+               Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: rid %03d %s\n",
+                                       si->si_rid,
                                        "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
                break;
        case LDAP_SYNC_DELETE:
-               Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
-                                       "syncrepl_entry",
+               Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: rid %03d %s\n",
+                                       si->si_rid,
                                        "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
                break;
        case LDAP_SYNC_MODIFY:
-               Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
-                                       "syncrepl_entry",
+               Debug( LDAP_DEBUG_SYNC, "syncrepl_entry: rid %03d %s\n",
+                                       si->si_rid,
                                        "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
                break;
        default:
-               Debug( LDAP_DEBUG_ANY, "%s: %s\n",
-                                       "syncrepl_entry",
+               Debug( LDAP_DEBUG_ANY, "syncrepl_entry: rid %03d %s\n",
+                                       si->si_rid,
                                        "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
        }
 
@@ -1653,12 +1719,12 @@ syncrepl_entry(
        ava.aa_value = *syncUUID;
        op->ors_filter = &f;
 
-       op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID->bv_len;
+       op->ors_filterstr.bv_len = STRLENOF( "(entryUUID=)" ) + syncUUID_strrep.bv_len;
        op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
                op->ors_filterstr.bv_len + 1, op->o_tmpmemctx ); 
        AC_MEMCPY( op->ors_filterstr.bv_val, "(entryUUID=", STRLENOF( "(entryUUID=" ) );
        AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "(entryUUID=" )],
-               syncUUID->bv_val, syncUUID->bv_len );
+               syncUUID_strrep.bv_val, syncUUID_strrep.bv_len );
        op->ors_filterstr.bv_val[op->ors_filterstr.bv_len - 1] = ')';
        op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
 
@@ -1686,8 +1752,8 @@ syncrepl_entry(
        if ( limits_check( op, &rs_search ) == 0 ) {
                rc = be->be_search( op, &rs_search );
                Debug( LDAP_DEBUG_SYNC,
-                               "syncrepl_entry: %s (%d)\n", 
-                               "be_search", rc, 0 );
+                               "syncrepl_entry: rid %03d be_search (%d)\n", 
+                               si->si_rid, rc, 0 );
        }
 
        if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
@@ -1699,12 +1765,12 @@ syncrepl_entry(
 
        if ( entry && !BER_BVISNULL( &entry->e_name ) ) {
                Debug( LDAP_DEBUG_SYNC,
-                               "syncrepl_entry: %s\n",
-                               entry->e_name.bv_val, 0, 0 );
+                               "syncrepl_entry: rid %03d %s\n",
+                               si->si_rid, entry->e_name.bv_val, 0 );
        } else {
                Debug( LDAP_DEBUG_SYNC,
-                               "syncrepl_entry: %s\n",
-                               dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0, 0 );
+                               "syncrepl_entry: rid %03d %s\n",
+                               si->si_rid, dni.dn.bv_val ? dni.dn.bv_val : "(null)", 0 );
        }
 
        if ( syncstate != LDAP_SYNC_DELETE ) {
@@ -1724,8 +1790,25 @@ syncrepl_entry(
                        ber_memfree( a->a_vals[0].bv_val );
                        ber_dupbv( &a->a_vals[0], &syncUUID_strrep );
                }
+               /* Don't save the contextCSN on the inooming context entry,
+                * we'll write it when syncrepl_updateCookie eventually
+                * gets called. (ITS#4622)
+                */
+               if ( syncstate == LDAP_SYNC_ADD && dn_match( &entry->e_nname,
+                       &be->be_nsuffix[0] )) {
+                       Attribute **ap;
+                       for ( ap = &entry->e_attrs; *ap; ap=&(*ap)->a_next ) {
+                               a = *ap;
+                               if ( a->a_desc == slap_schema.si_ad_contextCSN ) {
+                                       *ap = a->a_next;
+                                       attr_free( a );
+                                       break;
+                               }
+                       }
+               }
        }
 
+       slap_op_time( &op->o_time, &op->o_tincr );
        switch ( syncstate ) {
        case LDAP_SYNC_ADD:
        case LDAP_SYNC_MODIFY:
@@ -1744,8 +1827,8 @@ retry_add:;
 
                        rc = be->be_add( op, &rs_add );
                        Debug( LDAP_DEBUG_SYNC,
-                                       "syncrepl_entry: %s (%d)\n", 
-                                       "be_add", rc, 0 );
+                                       "syncrepl_entry: rid %03d be_add (%d)\n", 
+                                       si->si_rid, rc, 0 );
                        switch ( rs_add.sr_err ) {
                        case LDAP_SUCCESS:
                                be_entry_release_w( op, entry );
@@ -1796,14 +1879,15 @@ retry_add:;
                                        be->be_search( &op2, &rs2 );
 
                                        retry = 0;
+                                       slap_op_time( &op->o_time, &op->o_tincr );
                                        goto retry_add;
                                }
                                /* FALLTHRU */
 
                        default:
                                Debug( LDAP_DEBUG_ANY,
-                                       "syncrepl_entry : be_add failed (%d)\n",
-                                       rs_add.sr_err, 0, 0 );
+                                       "syncrepl_entry: rid %03d be_add failed (%d)\n",
+                                       si->si_rid, rs_add.sr_err, 0 );
                                ret = 1;
                                break;
                        }
@@ -1821,16 +1905,19 @@ retry_add:;
 
                        dnParent( &dni.ndn, &noldp );
                        dnParent( &entry->e_nname, &nnewp );
-                       if ( !dn_match( &noldp, &newp )) {
+                       if ( !dn_match( &noldp, &nnewp )) {
                                dnParent( &entry->e_name, &newp );
                                op->orr_newSup = &newp;
                                op->orr_nnewSup = &nnewp;
+                       } else {
+                               op->orr_newSup = NULL;
+                               op->orr_nnewSup = NULL;
                        }
                        op->orr_deleteoldrdn = 0;
                        rc = be->be_modrdn( op, &rs_modify );
                        Debug( LDAP_DEBUG_SYNC,
-                                       "syncrepl_entry: %s (%d)\n", 
-                                       "be_modrdn", rc, 0 );
+                                       "syncrepl_entry: rid %03d be_modrdn (%d)\n", 
+                                       si->si_rid, rc, 0 );
                        if ( rs_modify.sr_err == LDAP_SUCCESS ) {
                                op->o_req_dn = entry->e_name;
                                op->o_req_ndn = entry->e_nname;
@@ -1838,6 +1925,8 @@ retry_add:;
                                ret = 1;
                                goto done;
                        }
+                       if ( dni.wasChanged )
+                               slap_op_time( &op->o_time, &op->o_tincr );
                }
                if ( dni.wasChanged ) {
                        Modifications *mod, *modhead = NULL;
@@ -1893,12 +1982,12 @@ retry_add:;
 
                        rc = be->be_modify( op, &rs_modify );
                        Debug( LDAP_DEBUG_SYNC,
-                                       "syncrepl_entry: %s (%d)\n", 
-                                       "be_modify", rc, 0 );
+                                       "syncrepl_entry: rid %03d be_modify (%d)\n", 
+                                       si->si_rid, rc, 0 );
                        if ( rs_modify.sr_err != LDAP_SUCCESS ) {
                                Debug( LDAP_DEBUG_ANY,
-                                       "syncrepl_entry : be_modify failed (%d)\n",
-                                       rs_modify.sr_err, 0, 0 );
+                                       "syncrepl_entry: rid %03d be_modify failed (%d)\n",
+                                       si->si_rid, rs_modify.sr_err, 0 );
                        }
                }
                ret = 1;
@@ -1910,8 +1999,8 @@ retry_add:;
                        op->o_tag = LDAP_REQ_DELETE;
                        rc = be->be_delete( op, &rs_delete );
                        Debug( LDAP_DEBUG_SYNC,
-                                       "syncrepl_entry: %s (%d)\n", 
-                                       "be_delete", rc, 0 );
+                                       "syncrepl_entry: rid %03d be_delete (%d)\n", 
+                                       si->si_rid, rc, 0 );
 
                        while ( rs_delete.sr_err == LDAP_SUCCESS
                                && op->o_delete_glue_parent ) {
@@ -1934,7 +2023,7 @@ retry_add:;
 
        default :
                Debug( LDAP_DEBUG_ANY,
-                       "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
+                       "syncrepl_entry: rid %03d unknown syncstate\n", si->si_rid, 0, 0 );
                ret = 1;
                goto done;
        }
@@ -1969,7 +2058,8 @@ static void
 syncrepl_del_nonpresent(
        Operation *op,
        syncinfo_t *si,
-       BerVarray uuids )
+       BerVarray uuids,
+       struct berval *cookiecsn )
 {
        Backend* be = op->o_bd;
        slap_callback   cb = { NULL };
@@ -1981,6 +2071,7 @@ syncrepl_del_nonpresent(
        AttributeName   an[2];
 
        struct berval pdn = BER_BVNULL;
+       struct berval csn;
 
        op->o_req_dn = si->si_base;
        op->o_req_ndn = si->si_base;
@@ -2019,7 +2110,9 @@ syncrepl_del_nonpresent(
                for (i=0; uuids[i].bv_val; i++) {
                        op->ors_slimit = 1;
                        uf.f_av_value = uuids[i];
+                       filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
                        rc = be->be_search( op, &rs_search );
+                       op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
                }
                si->si_refreshDelete ^= NP_DELETE_ONE;
        } else {
@@ -2043,7 +2136,12 @@ syncrepl_del_nonpresent(
 
        if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
 
-               slap_queue_csn( op, &si->si_syncCookie.ctxcsn );
+               if ( cookiecsn && !BER_BVISNULL( cookiecsn ))
+                       csn = *cookiecsn;
+               else
+                       csn = si->si_syncCookie.ctxcsn;
+
+               slap_queue_csn( op, &csn );
 
                np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
                while ( np_list != NULL ) {
@@ -2057,6 +2155,9 @@ syncrepl_del_nonpresent(
                        op->o_req_dn = *np_prev->npe_name;
                        op->o_req_ndn = *np_prev->npe_nname;
                        rc = op->o_bd->be_delete( op, &rs_delete );
+                       Debug( LDAP_DEBUG_SYNC,
+                               "syncrepl_del_nonpresent: rid %03d be_delete %s (%d)\n", 
+                               si->si_rid, op->o_req_dn.bv_val, rc );
 
                        if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
                                Modifications mod1, mod2;
@@ -2080,6 +2181,7 @@ syncrepl_del_nonpresent(
                                op->orm_modlist = &mod1;
 
                                rc = be->be_modify( op, &rs_modify );
+                               if ( mod2.sml_next ) slap_mods_free( mod2.sml_next, 1 );
                        }
 
                        while ( rs_delete.sr_err == LDAP_SUCCESS &&
@@ -2107,6 +2209,8 @@ syncrepl_del_nonpresent(
                }
 
                slap_graduate_commit_csn( op );
+               op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
+               BER_BVZERO( &op->o_csn );
        }
 
        return;
@@ -2123,11 +2227,12 @@ syncrepl_add_glue(
        int     rc;
        int suffrdns;
        int i;
-       struct berval dn = {0, NULL};
-       struct berval ndn = {0, NULL};
+       struct berval dn = BER_BVNULL;
+       struct berval ndn = BER_BVNULL;
        Entry   *glue;
        SlapReply       rs_add = {REP_RESULT};
-       char    *ptr, *comma;
+       struct berval   ptr, nptr;
+       char            *comma;
 
        op->o_tag = LDAP_REQ_ADD;
        op->o_callback = &cb;
@@ -2139,8 +2244,10 @@ syncrepl_add_glue(
 
        /* count RDNs in suffix */
        if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
-               for ( i = 0, ptr = be->be_nsuffix[0].bv_val; ptr; ptr = strchr( ptr, ',' ) ) {
-                       ptr++;
+               for ( i = 0, ptr = be->be_nsuffix[0], comma = ptr.bv_val; comma != NULL; comma = ber_bvchr( &ptr, ',' ) ) {
+                       comma++;
+                       ptr.bv_len -= comma - ptr.bv_val;
+                       ptr.bv_val = comma;
                        i++;
                }
                suffrdns = i;
@@ -2150,23 +2257,34 @@ syncrepl_add_glue(
        }
 
        /* Start with BE suffix */
-       for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
-               comma = strrchr( dn.bv_val, ',' );
-               if ( ptr ) *ptr = ',';
-               if ( comma ) *comma = '\0';
-               ptr = comma;
+       ptr = dn;
+       for ( i = 0; i < suffrdns; i++ ) {
+               comma = ber_bvrchr( &ptr, ',' );
+               if ( comma != NULL ) {
+                       ptr.bv_len = comma - ptr.bv_val;
+               } else {
+                       ptr.bv_len = 0;
+                       break;
+               }
        }
-       if ( ptr ) {
-               *ptr++ = ',';
-               dn.bv_len -= ptr - dn.bv_val;
-               dn.bv_val = ptr;
+       
+       if ( !BER_BVISEMPTY( &ptr ) ) {
+               dn.bv_len -= ptr.bv_len + 1;
+               dn.bv_val += ptr.bv_len + 1;
        }
+
        /* the normalizedDNs are always the same length, no counting
         * required.
         */
+       nptr = ndn;
        if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
                ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
                ndn.bv_len = be->be_nsuffix[0].bv_len;
+
+               nptr.bv_len = ndn.bv_val - nptr.bv_val - 1;
+
+       } else {
+               nptr.bv_len = 0;
        }
 
        while ( ndn.bv_val > e->e_nname.bv_val ) {
@@ -2211,20 +2329,21 @@ syncrepl_add_glue(
                }
 
                /* Move to next child */
-               for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
-                       /* empty */
-               }
-               if ( ptr == e->e_name.bv_val ) break;
-               dn.bv_val = ++ptr;
-               dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
-               for( ptr = ndn.bv_val-2;
-                       ptr > e->e_nname.bv_val && *ptr != ',';
-                       ptr--)
-               {
-                       /* empty */
+               comma = ber_bvrchr( &ptr, ',' );
+               if ( comma == NULL ) {
+                       break;
                }
-               ndn.bv_val = ++ptr;
-               ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
+               ptr.bv_len = comma - ptr.bv_val;
+               
+               dn.bv_val = ++comma;
+               dn.bv_len = e->e_name.bv_len - (dn.bv_val - e->e_name.bv_val);
+
+               comma = ber_bvrchr( &nptr, ',' );
+               assert( comma != NULL );
+               nptr.bv_len = comma - nptr.bv_val;
+
+               ndn.bv_val = ++comma;
+               ndn.bv_len = e->e_nname.bv_len - (ndn.bv_val - e->e_nname.bv_val);
        }
 
        op->o_req_dn = e->e_name;
@@ -2288,10 +2407,14 @@ syncrepl_updateCookie(
 
        if ( rs_modify.sr_err != LDAP_SUCCESS ) {
                Debug( LDAP_DEBUG_ANY,
-                       "be_modify failed (%d)\n", rs_modify.sr_err, 0, 0 );
+                       "syncrepl_updateCookie: rid %03d be_modify failed (%d)\n",
+                       si->si_rid, rs_modify.sr_err, 0 );
        }
 
        slap_graduate_commit_csn( op );
+       op->o_tmpfree( op->o_csn.bv_val, op->o_tmpmemctx );
+       BER_BVZERO( &op->o_csn );
+       if ( mod.sml_next ) slap_mods_free( mod.sml_next, 1 );
 
        return;
 }
@@ -2306,7 +2429,7 @@ dn_callback(
        if ( rs->sr_type == REP_SEARCH ) {
                if ( !BER_BVISNULL( &dni->dn ) ) {
                        Debug( LDAP_DEBUG_ANY,
-                               "dn_callback : consistency error - "
+                               "dn_callback: consistency error - "
                                "entryUUID is not unique\n", 0, 0, 0 );
                } else {
                        ber_dupbv_x( &dni->dn, &rs->sr_entry->e_name, op->o_tmpmemctx );
@@ -2387,7 +2510,7 @@ dn_callback(
        } else if ( rs->sr_type == REP_RESULT ) {
                if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
                        Debug( LDAP_DEBUG_ANY,
-                               "dn_callback : consistency error - "
+                               "dn_callback: consistency error - "
                                "entryUUID is not unique\n", 0, 0, 0 );
                }
        }
@@ -2449,7 +2572,7 @@ null_callback(
                rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
        {
                Debug( LDAP_DEBUG_ANY,
-                       "null_callback : error code 0x%x\n",
+                       "null_callback: error code 0x%x\n",
                        rs->sr_err, 0, 0 );
        }
        return LDAP_SUCCESS;
@@ -2536,10 +2659,17 @@ avl_ber_bvfree( void *v_bv )
 void
 syncinfo_free( syncinfo_t *sie )
 {
+       if ( sie->si_ld ) {
+               if ( sie->si_conn_setup ) {
+                       ber_socket_t s;
+                       ldap_get_option( sie->si_ld, LDAP_OPT_DESC, &s );
+                       connection_client_stop( s );
+                       sie->si_conn_setup = 0;
+               }
+               ldap_unbind_ext( sie->si_ld, NULL, NULL );
+       }
+
        ldap_pvt_thread_mutex_destroy( &sie->si_mutex );
-       if ( !BER_BVISNULL( &sie->si_provideruri ) ) {
-               ch_free( sie->si_provideruri.bv_val );
-       }
 
        bindconf_free( &sie->si_bindconf );
 
@@ -2594,9 +2724,6 @@ syncinfo_free( syncinfo_t *sie )
        if ( sie->si_presentlist ) {
            avl_free( sie->si_presentlist, avl_ber_bvfree );
        }
-       if ( sie->si_ld ) {
-               ldap_unbind_ext( sie->si_ld, NULL, NULL );
-       }
        while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist )) {
                struct nonpresent_entry* npe;
                npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
@@ -2654,9 +2781,10 @@ syncinfo_free( syncinfo_t *sie )
 /* mandatory */
 #define GOT_ID                 0x0001
 #define GOT_PROVIDER           0x0002
+#define GOT_BASE               0x0004
 
 /* check */
-#define GOT_ALL                        (GOT_ID|GOT_PROVIDER)
+#define GOT_ALL                        (GOT_ID|GOT_PROVIDER|GOT_BASE)
 
 static struct {
        struct berval key;
@@ -2665,10 +2793,8 @@ static struct {
        { BER_BVC("base"), LDAP_SCOPE_BASE },
        { BER_BVC("one"), LDAP_SCOPE_ONELEVEL },
        { BER_BVC("onelevel"), LDAP_SCOPE_ONELEVEL },   /* OpenLDAP extension */
-#ifdef LDAP_SCOPE_SUBORDINATE
        { BER_BVC("children"), LDAP_SCOPE_SUBORDINATE },
        { BER_BVC("subordinate"), LDAP_SCOPE_SUBORDINATE },
-#endif
        { BER_BVC("sub"), LDAP_SCOPE_SUBTREE },
        { BER_BVC("subtree"), LDAP_SCOPE_SUBTREE },     /* OpenLDAP extension */
        { BER_BVNULL, 0 }
@@ -2683,40 +2809,46 @@ static slap_verbmasks datamodes[] = {
 
 static int
 parse_syncrepl_line(
-       char            **cargv,
-       int             cargc,
-       syncinfo_t      *si
-)
+       ConfigArgs      *c,
+       syncinfo_t      *si )
 {
        int     gots = 0;
        int     i;
        char    *val;
 
-       for ( i = 1; i < cargc; i++ ) {
-               if ( !strncasecmp( cargv[ i ], IDSTR "=",
+       for ( i = 1; i < c->argc; i++ ) {
+               if ( !strncasecmp( c->argv[ i ], IDSTR "=",
                                        STRLENOF( IDSTR "=" ) ) )
                {
                        int tmp;
                        /* '\0' string terminator accounts for '=' */
-                       val = cargv[ i ] + STRLENOF( IDSTR "=" );
-                       tmp= atoi( val );
+                       val = c->argv[ i ] + STRLENOF( IDSTR "=" );
+                       if ( lutil_atoi( &tmp, val ) != 0 ) {
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: parse_syncrepl_line: "
+                                       "unable to parse syncrepl id \"%s\"", val );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                               return -1;
+                       }
                        if ( tmp >= 1000 || tmp < 0 ) {
-                               fprintf( stderr, "Error: parse_syncrepl_line: "
-                                        "syncrepl id %d is out of range [0..999]\n", tmp );
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: parse_syncrepl_line: "
+                                       "syncrepl id %d is out of range [0..999]", tmp );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
                        si->si_rid = tmp;
                        gots |= GOT_ID;
-               } else if ( !strncasecmp( cargv[ i ], PROVIDERSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], PROVIDERSTR "=",
                                        STRLENOF( PROVIDERSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( PROVIDERSTR "=" );
-                       ber_str2bv( val, 0, 1, &si->si_provideruri );
+                       val = c->argv[ i ] + STRLENOF( PROVIDERSTR "=" );
+                       ber_str2bv( val, 0, 1, &si->si_bindconf.sb_uri );
                        gots |= GOT_PROVIDER;
-               } else if ( !strncasecmp( cargv[ i ], SCHEMASTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], SCHEMASTR "=",
                                        STRLENOF( SCHEMASTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( SCHEMASTR "=" );
+                       val = c->argv[ i ] + STRLENOF( SCHEMASTR "=" );
                        if ( !strncasecmp( val, "on", STRLENOF( "on" ) )) {
                                si->si_schemachecking = 1;
                        } else if ( !strncasecmp( val, "off", STRLENOF( "off" ) ) ) {
@@ -2724,59 +2856,72 @@ parse_syncrepl_line(
                        } else {
                                si->si_schemachecking = 1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], FILTERSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], FILTERSTR "=",
                                        STRLENOF( FILTERSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( FILTERSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( FILTERSTR "=" );
                        if ( si->si_filterstr.bv_val )
                                ch_free( si->si_filterstr.bv_val );
                        ber_str2bv( val, 0, 1, &si->si_filterstr );
-               } else if ( !strncasecmp( cargv[ i ], LOGFILTERSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], LOGFILTERSTR "=",
                                        STRLENOF( LOGFILTERSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( LOGFILTERSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( LOGFILTERSTR "=" );
                        if ( si->si_logfilterstr.bv_val )
                                ch_free( si->si_logfilterstr.bv_val );
                        ber_str2bv( val, 0, 1, &si->si_logfilterstr );
-               } else if ( !strncasecmp( cargv[ i ], SEARCHBASESTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], SEARCHBASESTR "=",
                                        STRLENOF( SEARCHBASESTR "=" ) ) )
                {
                        struct berval   bv;
                        int             rc;
 
-                       val = cargv[ i ] + STRLENOF( SEARCHBASESTR "=" );
+                       val = c->argv[ i ] + STRLENOF( SEARCHBASESTR "=" );
                        if ( si->si_base.bv_val ) {
                                ch_free( si->si_base.bv_val );
                        }
                        ber_str2bv( val, 0, 0, &bv );
                        rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_base, NULL );
                        if ( rc != LDAP_SUCCESS ) {
-                               fprintf( stderr, "Invalid base DN \"%s\": %d (%s)\n",
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Invalid base DN \"%s\": %d (%s)",
                                        val, rc, ldap_err2string( rc ) );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                               return -1;
+                       }
+                       if ( select_backend( &si->si_base, 0, 0 ) != c->be ) {
+                               ber_memfree( si->si_base.bv_val );
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Base DN \"%s\" is not within the database naming context",
+                                       val );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], LOGBASESTR "=",
+                       gots |= GOT_BASE;
+               } else if ( !strncasecmp( c->argv[ i ], LOGBASESTR "=",
                                        STRLENOF( LOGBASESTR "=" ) ) )
                {
                        struct berval   bv;
                        int             rc;
 
-                       val = cargv[ i ] + STRLENOF( LOGBASESTR "=" );
+                       val = c->argv[ i ] + STRLENOF( LOGBASESTR "=" );
                        if ( si->si_logbase.bv_val ) {
                                ch_free( si->si_logbase.bv_val );
                        }
                        ber_str2bv( val, 0, 0, &bv );
                        rc = dnNormalize( 0, NULL, NULL, &bv, &si->si_logbase, NULL );
                        if ( rc != LDAP_SUCCESS ) {
-                               fprintf( stderr, "Invalid logbase DN \"%s\": %d (%s)\n",
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Invalid logbase DN \"%s\": %d (%s)",
                                        val, rc, ldap_err2string( rc ) );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], SCOPESTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], SCOPESTR "=",
                                        STRLENOF( SCOPESTR "=" ) ) )
                {
                        int j;
-                       val = cargv[ i ] + STRLENOF( SCOPESTR "=" );
+                       val = c->argv[ i ] + STRLENOF( SCOPESTR "=" );
                        for ( j=0; !BER_BVISNULL(&scopes[j].key); j++ ) {
                                if (!strcasecmp( val, scopes[j].key.bv_val )) {
                                        si->si_scope = scopes[j].val;
@@ -2784,18 +2929,20 @@ parse_syncrepl_line(
                                }
                        }
                        if ( BER_BVISNULL(&scopes[j].key) ) {
-                               fprintf( stderr, "Error: parse_syncrepl_line: "
-                                       "unknown scope \"%s\"\n", val);
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: parse_syncrepl_line: "
+                                       "unknown scope \"%s\"", val);
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], ATTRSONLYSTR "=",
-                                       STRLENOF( ATTRSONLYSTR "=" ) ) )
+               } else if ( !strncasecmp( c->argv[ i ], ATTRSONLYSTR,
+                                       STRLENOF( ATTRSONLYSTR ) ) )
                {
                        si->si_attrsonly = 1;
-               } else if ( !strncasecmp( cargv[ i ], ATTRSSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], ATTRSSTR "=",
                                        STRLENOF( ATTRSSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( ATTRSSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( ATTRSSTR "=" );
                        if ( !strncasecmp( val, ":include:", STRLENOF(":include:") ) ) {
                                char *attr_fname;
                                attr_fname = ch_strdup( val + STRLENOF(":include:") );
@@ -2828,15 +2975,15 @@ parse_syncrepl_line(
                                        return -1;
                                }
                        }
-               } else if ( !strncasecmp( cargv[ i ], EXATTRSSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], EXATTRSSTR "=",
                                        STRLENOF( EXATTRSSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( EXATTRSSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( EXATTRSSTR "=" );
                        if ( !strncasecmp( val, ":include:", STRLENOF(":include:") )) {
                                char *attr_fname;
                                attr_fname = ch_strdup( val + STRLENOF(":include:") );
                                si->si_exanlist = file2anlist(
-                                                                       si->si_exanlist, attr_fname, " ,\t" );
+                                       si->si_exanlist, attr_fname, " ,\t" );
                                if ( si->si_exanlist == NULL ) {
                                        ch_free( attr_fname );
                                        return -1;
@@ -2848,85 +2995,101 @@ parse_syncrepl_line(
                                        return -1;
                                }
                        }
-               } else if ( !strncasecmp( cargv[ i ], TYPESTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], TYPESTR "=",
                                        STRLENOF( TYPESTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( TYPESTR "=" );
+                       val = c->argv[ i ] + STRLENOF( TYPESTR "=" );
                        if ( !strncasecmp( val, "refreshOnly",
-                                               STRLENOF("refreshOnly") ))
+                                               STRLENOF("refreshOnly") ) )
                        {
                                si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_ONLY;
                        } else if ( !strncasecmp( val, "refreshAndPersist",
-                                               STRLENOF("refreshAndPersist") ))
+                                               STRLENOF("refreshAndPersist") ) )
                        {
                                si->si_type = si->si_ctype = LDAP_SYNC_REFRESH_AND_PERSIST;
                                si->si_interval = 60;
                        } else {
-                               fprintf( stderr, "Error: parse_syncrepl_line: "
-                                       "unknown sync type \"%s\"\n", val);
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: parse_syncrepl_line: "
+                                       "unknown sync type \"%s\"", val);
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], INTERVALSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], INTERVALSTR "=",
                                        STRLENOF( INTERVALSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( INTERVALSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( INTERVALSTR "=" );
                        if ( si->si_type == LDAP_SYNC_REFRESH_AND_PERSIST ) {
                                si->si_interval = 0;
-                       } else {
-                               char *hstr;
-                               char *mstr;
-                               char *dstr;
-                               char *sstr;
-                               int dd, hh, mm, ss;
-                               dstr = val;
-                               hstr = strchr( dstr, ':' );
-                               if ( hstr == NULL ) {
-                                       fprintf( stderr, "Error: parse_syncrepl_line: "
-                                               "invalid interval \"%s\"\n", val );
+                       } else if ( strchr( val, ':' ) != NULL ) {
+                               char *next, *ptr = val;
+                               unsigned dd, hh, mm, ss;
+                               
+                               /* NOTE: the test for ptr[ 0 ] == '-'
+                                * should go before the call to strtoul() */
+                               dd = strtoul( ptr, &next, 10 );
+                               if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: parse_syncrepl_line: "
+                                               "invalid interval \"%s\", unable to parse days", val );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                        return -1;
                                }
-                               *hstr++ = '\0';
-                               mstr = strchr( hstr, ':' );
-                               if ( mstr == NULL ) {
-                                       fprintf( stderr, "Error: parse_syncrepl_line: "
-                                               "invalid interval \"%s\"\n", val );
+                               ptr = next + 1;
+                               hh = strtoul( ptr, &next, 10 );
+                               if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || hh > 24 ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: parse_syncrepl_line: "
+                                               "invalid interval \"%s\", unable to parse hours", val );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                        return -1;
                                }
-                               *mstr++ = '\0';
-                               sstr = strchr( mstr, ':' );
-                               if ( sstr == NULL ) {
-                                       fprintf( stderr, "Error: parse_syncrepl_line: "
-                                               "invalid interval \"%s\"\n", val );
+                               ptr = next + 1;
+                               mm = strtoul( ptr, &next, 10 );
+                               if ( ptr[ 0 ] == '-' || next == ptr || next[0] != ':' || mm > 60 ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: parse_syncrepl_line: "
+                                               "invalid interval \"%s\", unable to parse minutes", val );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                        return -1;
                                }
-                               *sstr++ = '\0';
-
-                               dd = atoi( dstr );
-                               hh = atoi( hstr );
-                               mm = atoi( mstr );
-                               ss = atoi( sstr );
-                               if (( hh > 24 ) || ( hh < 0 ) ||
-                                       ( mm > 60 ) || ( mm < 0 ) ||
-                                       ( ss > 60 ) || ( ss < 0 ) || ( dd < 0 )) {
-                                       fprintf( stderr, "Error: parse_syncrepl_line: "
-                                               "invalid interval \"%s\"\n", val );
+                               ptr = next + 1;
+                               ss = strtoul( ptr, &next, 10 );
+                               if ( ptr[ 0 ] == '-' || next == ptr || next[0] != '\0' || ss > 60 ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: parse_syncrepl_line: "
+                                               "invalid interval \"%s\", unable to parse seconds", val );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                        return -1;
                                }
                                si->si_interval = (( dd * 24 + hh ) * 60 + mm ) * 60 + ss;
+                       } else {
+                               unsigned long   t;
+
+                               if ( lutil_parse_time( val, &t ) != 0 ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: parse_syncrepl_line: "
+                                               "invalid interval \"%s\"", val );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                                       return -1;
+                               }
+                               si->si_interval = (time_t)t;
                        }
                        if ( si->si_interval < 0 ) {
-                               fprintf( stderr, "Error: parse_syncrepl_line: "
-                                       "invalid interval \"%ld\"\n",
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: parse_syncrepl_line: "
+                                       "invalid interval \"%ld\"",
                                        (long) si->si_interval);
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                return -1;
                        }
-               } else if ( !strncasecmp( cargv[ i ], RETRYSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], RETRYSTR "=",
                                        STRLENOF( RETRYSTR "=" ) ) )
                {
                        char **retry_list;
                        int j, k, n;
 
-                       val = cargv[ i ] + STRLENOF( RETRYSTR "=" );
+                       val = c->argv[ i ] + STRLENOF( RETRYSTR "=" );
                        retry_list = (char **) ch_calloc( 1, sizeof( char * ));
                        retry_list[0] = NULL;
 
@@ -2935,67 +3098,127 @@ parse_syncrepl_line(
                        for ( k = 0; retry_list && retry_list[k]; k++ ) ;
                        n = k / 2;
                        if ( k % 2 ) {
-                               fprintf( stderr,
-                                               "Error: incomplete syncrepl retry list\n" );
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "Error: incomplete syncrepl retry list" );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                                for ( k = 0; retry_list && retry_list[k]; k++ ) {
                                        ch_free( retry_list[k] );
                                }
                                ch_free( retry_list );
-                               exit( EXIT_FAILURE );
+                               return 1;
                        }
                        si->si_retryinterval = (time_t *) ch_calloc( n + 1, sizeof( time_t ));
                        si->si_retrynum = (int *) ch_calloc( n + 1, sizeof( int ));
                        si->si_retrynum_init = (int *) ch_calloc( n + 1, sizeof( int ));
                        for ( j = 0; j < n; j++ ) {
-                               si->si_retryinterval[j] = atoi( retry_list[j*2] );
+                               unsigned long   t;
+                               if ( lutil_atoul( &t, retry_list[j*2] ) != 0 ) {
+                                       snprintf( c->msg, sizeof( c->msg ),
+                                               "Error: invalid retry interval \"%s\" (#%d)",
+                                               retry_list[j*2], j );
+                                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                                       /* do some cleanup */
+                                       return 1;
+                               }
+                               si->si_retryinterval[j] = (time_t)t;
                                if ( *retry_list[j*2+1] == '+' ) {
-                                       si->si_retrynum_init[j] = -1;
-                                       si->si_retrynum[j] = -1;
+                                       si->si_retrynum_init[j] = RETRYNUM_FOREVER;
+                                       si->si_retrynum[j] = RETRYNUM_FOREVER;
                                        j++;
                                        break;
                                } else {
-                                       si->si_retrynum_init[j] = atoi( retry_list[j*2+1] );
-                                       si->si_retrynum[j] = atoi( retry_list[j*2+1] );
+                                       if ( lutil_atoi( &si->si_retrynum_init[j], retry_list[j*2+1] ) != 0
+                                                       || si->si_retrynum_init[j] <= 0 )
+                                       {
+                                               snprintf( c->msg, sizeof( c->msg ),
+                                                       "Error: invalid initial retry number \"%s\" (#%d)",
+                                                       retry_list[j*2+1], j );
+                                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                                               /* do some cleanup */
+                                               return 1;
+                                       }
+                                       if ( lutil_atoi( &si->si_retrynum[j], retry_list[j*2+1] ) != 0
+                                                       || si->si_retrynum[j] <= 0 )
+                                       {
+                                               snprintf( c->msg, sizeof( c->msg ),
+                                                       "Error: invalid retry number \"%s\" (#%d)",
+                                                       retry_list[j*2+1], j );
+                                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                                               /* do some cleanup */
+                                               return 1;
+                                       }
                                }
                        }
-                       si->si_retrynum_init[j] = -2;
-                       si->si_retrynum[j] = -2;
+                       si->si_retrynum_init[j] = RETRYNUM_TAIL;
+                       si->si_retrynum[j] = RETRYNUM_TAIL;
                        si->si_retryinterval[j] = 0;
                        
                        for ( k = 0; retry_list && retry_list[k]; k++ ) {
                                ch_free( retry_list[k] );
                        }
                        ch_free( retry_list );
-               } else if ( !strncasecmp( cargv[ i ], MANAGEDSAITSTR "=",
+               } else if ( !strncasecmp( c->argv[ i ], MANAGEDSAITSTR "=",
                                        STRLENOF( MANAGEDSAITSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
-                       si->si_manageDSAit = atoi( val );
-               } else if ( !strncasecmp( cargv[ i ], SLIMITSTR "=",
+                       val = c->argv[ i ] + STRLENOF( MANAGEDSAITSTR "=" );
+                       if ( lutil_atoi( &si->si_manageDSAit, val ) != 0
+                               || si->si_manageDSAit < 0 || si->si_manageDSAit > 1 )
+                       {
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "invalid manageDSAit value \"%s\".\n",
+                                       val );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                               return 1;
+                       }
+               } else if ( !strncasecmp( c->argv[ i ], SLIMITSTR "=",
                                        STRLENOF( SLIMITSTR "=") ) )
                {
-                       val = cargv[ i ] + STRLENOF( SLIMITSTR "=" );
-                       si->si_slimit = atoi( val );
-               } else if ( !strncasecmp( cargv[ i ], TLIMITSTR "=",
+                       val = c->argv[ i ] + STRLENOF( SLIMITSTR "=" );
+                       if ( strcasecmp( val, "unlimited" ) == 0 ) {
+                               si->si_slimit = 0;
+
+                       } else if ( lutil_atoi( &si->si_slimit, val ) != 0 || si->si_slimit < 0 ) {
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "invalid size limit value \"%s\".\n",
+                                       val );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                               return 1;
+                       }
+               } else if ( !strncasecmp( c->argv[ i ], TLIMITSTR "=",
                                        STRLENOF( TLIMITSTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( TLIMITSTR "=" );
-                       si->si_tlimit = atoi( val );
-               } else if ( !strncasecmp( cargv[ i ], SYNCDATASTR "=",
+                       val = c->argv[ i ] + STRLENOF( TLIMITSTR "=" );
+                       if ( strcasecmp( val, "unlimited" ) == 0 ) {
+                               si->si_tlimit = 0;
+
+                       } else if ( lutil_atoi( &si->si_tlimit, val ) != 0 || si->si_tlimit < 0 ) {
+                               snprintf( c->msg, sizeof( c->msg ),
+                                       "invalid time limit value \"%s\".\n",
+                                       val );
+                               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
+                               return 1;
+                       }
+               } else if ( !strncasecmp( c->argv[ i ], SYNCDATASTR "=",
                                        STRLENOF( SYNCDATASTR "=" ) ) )
                {
-                       val = cargv[ i ] + STRLENOF( SYNCDATASTR "=" );
+                       val = c->argv[ i ] + STRLENOF( SYNCDATASTR "=" );
                        si->si_syncdata = verb_to_mask( val, datamodes );
-               } else if ( bindconf_parse( cargv[i], &si->si_bindconf )) {
-                       fprintf( stderr, "Error: parse_syncrepl_line: "
-                               "unknown keyword \"%s\"\n", cargv[ i ] );
+               } else if ( bindconf_parse( c->argv[i], &si->si_bindconf ) ) {
+                       snprintf( c->msg, sizeof( c->msg ),
+                               "Error: parse_syncrepl_line: "
+                               "unable to parse \"%s\"\n", c->argv[ i ] );
+                       Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                        return -1;
                }
        }
 
        if ( gots != GOT_ALL ) {
-               fprintf( stderr,
-                       "Error: Malformed \"syncrepl\" line in slapd config file" );
+               snprintf( c->msg, sizeof( c->msg ),
+                       "Error: Malformed \"syncrepl\" line in slapd config file, missing%s%s%s",
+                       gots & GOT_ID ? "" : " "IDSTR,
+                       gots & GOT_PROVIDER ? "" : " "PROVIDERSTR,
+                       gots & GOT_BASE ? "" : " "SEARCHBASESTR );
+               Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->msg, 0 );
                return -1;
        }
 
@@ -3004,17 +3227,20 @@ parse_syncrepl_line(
 
 static int
 add_syncrepl(
-       Backend *be,
-       char    **cargv,
-       int     cargc
-)
+       ConfigArgs *c )
 {
        syncinfo_t *si;
        int     rc = 0;
 
-       if ( !( be->be_search && be->be_add && be->be_modify && be->be_delete )) {
-               Debug( LDAP_DEBUG_ANY, "database %s does not support operations "
-                       "required for syncrepl\n", be->be_type, 0, 0 );
+       if ( !( c->be->be_search && c->be->be_add && c->be->be_modify && c->be->be_delete ) ) {
+               snprintf( c->msg, sizeof(c->msg), "database %s does not support "
+                       "operations required for syncrepl", c->be->be_type );
+               Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
+               return 1;
+       }
+       if ( BER_BVISEMPTY( &c->be->be_rootdn )) {
+               strcpy( c->msg, "rootDN must be defined before syncrepl may be used" );
+               Debug( LDAP_DEBUG_ANY, "%s: %s\n", c->log, c->msg, 0 );
                return 1;
        }
        si = (syncinfo_t *) ch_calloc( 1, sizeof( syncinfo_t ) );
@@ -3052,13 +3278,13 @@ add_syncrepl(
        LDAP_LIST_INIT( &si->si_nonpresentlist );
        ldap_pvt_thread_mutex_init( &si->si_mutex );
 
-       rc = parse_syncrepl_line( cargv, cargc, si );
+       rc = parse_syncrepl_line( c, si );
 
        if ( rc == 0 ) {
-               si->si_be = be;
+               si->si_be = c->be;
                init_syncrepl( si );
                si->si_re = ldap_pvt_runqueue_insert( &slapd_rq, si->si_interval,
-                       do_syncrepl, si, "do_syncrepl", be->be_suffix[0].bv_val );
+                       do_syncrepl, si, "do_syncrepl", c->be->be_suffix[0].bv_val );
                if ( !si->si_re )
                        rc = -1;
        }
@@ -3069,12 +3295,12 @@ add_syncrepl(
        } else {
                Debug( LDAP_DEBUG_CONFIG,
                        "Config: ** successfully added syncrepl \"%s\"\n",
-                       BER_BVISNULL( &si->si_provideruri ) ?
-                       "(null)" : si->si_provideruri.bv_val, 0, 0 );
+                       BER_BVISNULL( &si->si_bindconf.sb_uri ) ?
+                       "(null)" : si->si_bindconf.sb_uri.bv_val, 0, 0 );
                if ( !si->si_schemachecking ) {
-                       SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
+                       SLAP_DBFLAGS(c->be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
                }
-               be->be_syncinfo = si;
+               c->be->be_syncinfo = si;
                return 0;
        }
 }
@@ -3082,14 +3308,21 @@ add_syncrepl(
 static void
 syncrepl_unparse( syncinfo_t *si, struct berval *bv )
 {
-       struct berval bc;
+       struct berval bc, uri;
        char buf[BUFSIZ*2], *ptr;
        int i;
 
+       /* FIXME: we're not checking for buf[] overflow! */
+
+       /* temporarily inhibit bindconf from printing URI */
+       uri = si->si_bindconf.sb_uri;
+       BER_BVZERO( &si->si_bindconf.sb_uri );
        bindconf_unparse( &si->si_bindconf, &bc );
+       si->si_bindconf.sb_uri = uri;
+
        ptr = buf;
-       ptr += sprintf( ptr, IDSTR "=%03ld " PROVIDERSTR "=%s",
-               si->si_rid, si->si_provideruri.bv_val );
+       ptr += snprintf( ptr, sizeof( buf ), IDSTR "=%03d " PROVIDERSTR "=%s",
+               si->si_rid, si->si_bindconf.sb_uri.bv_val );
        if ( !BER_BVISNULL( &bc )) {
                ptr = lutil_strcopy( ptr, bc.bv_val );
                free( bc.bv_val );
@@ -3122,7 +3355,7 @@ syncrepl_unparse( syncinfo_t *si, struct berval *bv )
                }
        }
        if ( si->si_attrsonly ) {
-               ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR "=yes" );
+               ptr = lutil_strcopy( ptr, " " ATTRSONLYSTR );
        }
        if ( si->si_anfile ) {
                ptr = lutil_strcopy( ptr, " " ATTRSSTR "=:include:" );
@@ -3173,7 +3406,7 @@ syncrepl_unparse( syncinfo_t *si, struct berval *bv )
                        if ( space ) *ptr++ = ' ';
                        space = 1;
                        ptr += sprintf( ptr, "%ld ", (long) si->si_retryinterval[i] );
-                       if ( si->si_retrynum_init[i] == -1 )
+                       if ( si->si_retrynum_init[i] == RETRYNUM_FOREVER )
                                *ptr++ = '+';
                        else
                                ptr += sprintf( ptr, "%d", si->si_retrynum_init[i] );
@@ -3203,7 +3436,8 @@ syncrepl_unparse( syncinfo_t *si, struct berval *bv )
 }
 
 int
-syncrepl_config(ConfigArgs *c) {
+syncrepl_config( ConfigArgs *c )
+{
        if (c->op == SLAP_CONFIG_EMIT) {
                if ( c->be->be_syncinfo ) {
                        struct berval bv;
@@ -3218,24 +3452,23 @@ syncrepl_config(ConfigArgs *c) {
                if ( c->be->be_syncinfo ) {
                        re = c->be->be_syncinfo->si_re;
                        if ( re ) {
-                               if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ))
+                               if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
                                        ldap_pvt_runqueue_stoptask( &slapd_rq, re );
                                ldap_pvt_runqueue_remove( &slapd_rq, re );
                        }
                        syncinfo_free( c->be->be_syncinfo );
                        c->be->be_syncinfo = NULL;
                }
-               SLAP_DBFLAGS(c->be) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
+               SLAP_DBFLAGS( c->be ) &= ~(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SYNC_SHADOW);
                return 0;
        }
-       if(SLAP_SHADOW(c->be)) {
+       if ( SLAP_SHADOW( c->be ) ) {
                Debug(LDAP_DEBUG_ANY, "%s: "
                        "syncrepl: database already shadowed.\n",
                        c->log, 0, 0);
                return(1);
-       } else if(add_syncrepl(c->be, c->argv, c->argc)) {
+       } else if ( add_syncrepl( c ) ) {
                return(1);
        }
-       SLAP_DBFLAGS(c->be) |= (SLAP_DBFLAG_SHADOW | SLAP_DBFLAG_SYNC_SHADOW);
-       return(0);
+       return config_sync_shadow( c );
 }