]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/result.c
Updated notices
[openldap] / servers / slapd / result.c
index ccc1de308336c816201a3ada61da4c65b11bc830..b765a7637f09e053f51e90b7357d259ce2fa034d 100644 (file)
@@ -1,8 +1,27 @@
 /* result.c - routines to send ldap results, errors, and referrals */
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2003 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by 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>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
  */
 
 #include "portable.h"
 
 #include "slap.h"
 
+#ifdef LDAP_SLAPI
+#include "slapi.h"
+#endif
+
 static char *v2ref( BerVarray ref, const char *text )
 {
        size_t len = 0, i = 0;
@@ -38,7 +61,16 @@ static char *v2ref( BerVarray ref, const char *text )
                }
        }
 
-       v2 = ch_malloc( len+i+sizeof("Referral:") );
+       v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
+       if( v2 == NULL ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
+#endif
+               return NULL;
+       }
+
        if( text != NULL ) {
                strcpy(v2, text);
                if( i ) {
@@ -49,7 +81,15 @@ static char *v2ref( BerVarray ref, const char *text )
        len += sizeof("Referral:");
 
        for( i=0; ref[i].bv_val != NULL; i++ ) {
-               v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
+               v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
+               if( v2 == NULL ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( OPERATION, ERR, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
+#else
+                       Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
+#endif
+                       return NULL;
+               }
                v2[len-1] = '\n';
                AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
                len += ref[i].bv_len;
@@ -197,120 +237,109 @@ send_ldap_controls( BerElement *ber, LDAPControl **c )
        return rc;
 }
 
-static void
+void
 send_ldap_response(
-    Connection *conn,
-    Operation  *op,
-       ber_tag_t       tag,
-       ber_int_t       msgid,
-    ber_int_t  err,
-    const char *matched,
-    const char *text,
-       BerVarray       ref,
-       const char      *resoid,
-       struct berval   *resdata,
-       struct berval   *sasldata,
-       LDAPControl **ctrls
-)
+       Operation *op,
+       SlapReply *rs )
 {
-       char berbuf[256];
-       BerElement      *ber = (BerElement *)berbuf;
+       BerElementBuffer berbuf;
+       BerElement      *ber = (BerElement *) &berbuf;
        int             rc;
        long    bytes;
 
        if (op->o_callback && op->o_callback->sc_response) {
-               op->o_callback->sc_response( conn, op, tag, msgid, err, matched,
-                       text, ref, resoid, resdata, sasldata, ctrls );
-               return;
+               rc = op->o_callback->sc_response( op, rs );
+               if ( rc != SLAP_CB_CONTINUE ) return;
        }
                
-       assert( ctrls == NULL ); /* ctrls not implemented */
-
-       ber_init_w_nullc( ber, LBER_USE_DER );
+#ifdef LDAP_CONNECTIONLESS
+       if (op->o_conn && op->o_conn->c_is_udp)
+               ber = op->o_res_ber;
+       else
+#endif
+       {
+               ber_init_w_nullc( ber, LBER_USE_DER );
+               ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+       }
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
                "send_ldap_response:  msgid=%d tag=%lu err=%d\n",
-               msgid, tag, err );
+               rs->sr_msgid, rs->sr_tag, rs->sr_err );
 #else
        Debug( LDAP_DEBUG_TRACE,
                "send_ldap_response: msgid=%d tag=%lu err=%d\n",
-               msgid, tag, err );
+               rs->sr_msgid, rs->sr_tag, rs->sr_err );
 #endif
 
-       if( ref ) {
+       if( rs->sr_ref ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ARGS, 
                        "send_ldap_response: conn %lu  ref=\"%s\"\n",
-                       conn ? conn->c_connid : 0, 
-                       ref[0].bv_val ? ref[0].bv_val : "NULL" , 0 );
+                       op->o_connid,
+                       rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL" , 0 );
 #else
                Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
-                       ref[0].bv_val ? ref[0].bv_val : "NULL",
+                       rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
                        NULL, NULL );
 #endif
        }
 
 #ifdef LDAP_CONNECTIONLESS
-       if (conn->c_is_udp) {
-           rc = ber_write(ber, (char *)&op->o_peeraddr, sizeof(struct sockaddr), 0);
-           if (rc != sizeof(struct sockaddr)) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                       "send_ldap_response: conn %lu  ber_write failed\n",
-                       conn ? conn->c_connid : 0 , 0, 0);
-#else
-               Debug( LDAP_DEBUG_ANY, "ber_write failed\n", 0, 0, 0 );
-#endif
-               ber_free_buf( ber );
-               return;
-           }
-       }
-       if (conn->c_is_udp && op->o_protocol == LDAP_VERSION2) {
-           rc = ber_printf( ber, "{is{t{ess" /*"}}}"*/,
-               msgid, "", tag, err,
-               matched == NULL ? "" : matched,
-               text == NULL ? "" : text );
-       } else
-#endif
+       if (op->o_conn && op->o_conn->c_is_udp &&
+               op->o_protocol == LDAP_VERSION2 )
        {
+               rc = ber_printf( ber, "t{ess" /*"}}"*/,
+                       rs->sr_tag, rs->sr_err,
+               rs->sr_matched == NULL ? "" : rs->sr_matched,
+               rs->sr_text == NULL ? "" : rs->sr_text );
+       } else 
+#endif
+       if ( rs->sr_type == REP_INTERMEDIATE ) {
+           rc = ber_printf( ber, "{it{" /*"}}"*/,
+                       rs->sr_msgid, rs->sr_tag );
+
+       } else {
            rc = ber_printf( ber, "{it{ess" /*"}}"*/,
-               msgid, tag, err,
-               matched == NULL ? "" : matched,
-               text == NULL ? "" : text );
+               rs->sr_msgid, rs->sr_tag, rs->sr_err,
+               rs->sr_matched == NULL ? "" : rs->sr_matched,
+               rs->sr_text == NULL ? "" : rs->sr_text );
        }
 
        if( rc != -1 ) {
-               if ( ref != NULL ) {
-                       assert( err == LDAP_REFERRAL );
+               if ( rs->sr_ref != NULL ) {
+                       assert( rs->sr_err == LDAP_REFERRAL );
                        rc = ber_printf( ber, "t{W}",
-                               LDAP_TAG_REFERRAL, ref );
+                               LDAP_TAG_REFERRAL, rs->sr_ref );
                } else {
-                       assert( err != LDAP_REFERRAL );
+                       assert( rs->sr_err != LDAP_REFERRAL );
                }
        }
 
-       if( rc != -1 && sasldata != NULL ) {
+       if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
                rc = ber_printf( ber, "tO",
-                       LDAP_TAG_SASL_RES_CREDS, sasldata );
-       }
-
-       if( rc != -1 && resoid != NULL ) {
-               rc = ber_printf( ber, "ts",
-                       LDAP_TAG_EXOP_RES_OID, resoid );
+                       LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
        }
 
-       if( rc != -1 && resdata != NULL ) {
-               rc = ber_printf( ber, "tO",
-                       LDAP_TAG_EXOP_RES_VALUE, resdata );
+       if( rc != -1 &&
+               ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
+       {
+               if ( rs->sr_rspoid != NULL ) {
+                       rc = ber_printf( ber, "ts",
+                               LDAP_TAG_EXOP_RES_OID, rs->sr_rspoid );
+               }
+               if( rc != -1 && rs->sr_rspdata != NULL ) {
+                       rc = ber_printf( ber, "tO",
+                               LDAP_TAG_EXOP_RES_VALUE, rs->sr_rspdata );
+               }
        }
 
        if( rc != -1 ) {
                rc = ber_printf( ber, /*"{"*/ "N}" );
        }
 
-       if( rc != -1 && ctrls != NULL ) {
-               rc = send_ldap_controls( ber, ctrls );
+       if( rc != -1 && rs->sr_ctrls != NULL ) {
+               rc = send_ldap_controls( ber, rs->sr_ctrls );
        }
 
        if( rc != -1 ) {
@@ -318,33 +347,39 @@ send_ldap_response(
        }
 
 #ifdef LDAP_CONNECTIONLESS
-       if( conn->c_is_udp && op->o_protocol == LDAP_VERSION2 && rc != -1 ) {
+       if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2 && rc != -1 ) {
                rc = ber_printf( ber, /*"{"*/ "N}" );
        }
 #endif
-
+               
        if ( rc == -1 ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR, 
                        "send_ldap_response: conn %lu  ber_printf failed\n",
-                       conn ? conn->c_connid : 0, 0, 0 );
+                       op->o_connid, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
+#ifdef LDAP_CONNECTIONLESS
+               if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
                ber_free_buf( ber );
                return;
        }
 
        /* send BER */
-       bytes = send_ldap_ber( conn, ber );
+       bytes = send_ldap_ber( op->o_conn, ber );
+#ifdef LDAP_CONNECTIONLESS
+       if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
        ber_free_buf( ber );
 
        if ( bytes < 0 ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR, 
                        "send_ldap_response: conn %lu ber write failed\n",
-                       conn ? conn->c_connid : 0, 0, 0 );
+                       op->o_connid ? op->o_connid : 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY,
                        "send_ldap_response: ber write failed\n",
@@ -354,6 +389,14 @@ send_ldap_response(
                return;
        }
 
+#ifdef LDAP_SLAPI
+       if ( op->o_pb ) {
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED, (void *)rs->sr_matched );
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
+       }
+#endif /* LDAP_SLAPI */
+
        ldap_pvt_thread_mutex_lock( &num_sent_mutex );
        num_bytes_sent += bytes;
        num_pdu_sent++;
@@ -363,75 +406,60 @@ send_ldap_response(
 
 
 void
-send_ldap_disconnect(
-    Connection *conn,
-    Operation  *op,
-    ber_int_t  err,
-    const char *text
-)
+send_ldap_disconnect( Operation        *op, SlapReply *rs )
 {
-       ber_tag_t tag;
-       ber_int_t msgid;
-       char *reqoid;
-
 #define LDAP_UNSOLICITED_ERROR(e) \
        (  (e) == LDAP_PROTOCOL_ERROR \
        || (e) == LDAP_STRONG_AUTH_REQUIRED \
        || (e) == LDAP_UNAVAILABLE )
 
-       assert( LDAP_UNSOLICITED_ERROR( err ) );
+       assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
+
+       rs->sr_type = REP_EXTENDED;
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
                "send_ldap_disconnect: conn %lu  %d:%s\n",
-               conn ? conn->c_connid : 0, err, text ? text : "" );
+               op->o_connid, rs->sr_err, rs->sr_text ? rs->sr_text : "" );
 #else
        Debug( LDAP_DEBUG_TRACE,
                "send_ldap_disconnect %d:%s\n",
-               err, text ? text : "", NULL );
+               rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 #endif
 
 
        if ( op->o_protocol < LDAP_VERSION3 ) {
-               reqoid = NULL;
-               tag = req2res( op->o_tag );
-               msgid = (tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+               rs->sr_rspoid = NULL;
+               rs->sr_tag = req2res( op->o_tag );
+               rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 
        } else {
-               reqoid = LDAP_NOTICE_DISCONNECT;
-               tag = LDAP_RES_EXTENDED;
-               msgid = 0;
+               rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
+               rs->sr_tag = LDAP_RES_EXTENDED;
+               rs->sr_msgid = 0;
        }
 
-       send_ldap_response( conn, op, tag, msgid,
-               err, NULL, text, NULL,
-               reqoid, NULL, NULL, NULL );
+       send_ldap_response( op, rs );
 
        Statslog( LDAP_DEBUG_STATS,
            "conn=%lu op=%lu DISCONNECT tag=%lu err=%d text=%s\n",
-               op->o_connid, op->o_opid, tag, err, text ? text : "" );
+               op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err, rs->sr_text ? rs->sr_text : "" );
 }
 
 void
-send_ldap_result(
-    Connection *conn,
-    Operation  *op,
-    ber_int_t  err,
-    const char *matched,
-    const char *text,
-       BerVarray ref,
-       LDAPControl **ctrls
-)
+slap_send_ldap_result( Operation *op, SlapReply *rs )
 {
-       ber_tag_t tag;
-       ber_int_t msgid;
        char *tmp = NULL;
+       const char *otext = rs->sr_text;
+       BerVarray oref = rs->sr_ref;
+
+       rs->sr_type = REP_RESULT;
 
-       assert( !LDAP_API_ERROR( err ) );
+       assert( !LDAP_API_ERROR( rs->sr_err ) && ( rs->sr_err >= 0 ));
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
-               "send_ldap_result : conn %lu      op=%lu p=%d\n",
+               "send_ldap_result: conn %lu op=%lu p=%d\n",
                op->o_connid, op->o_opid, op->o_protocol );
 #else
        Debug( LDAP_DEBUG_TRACE,
@@ -442,229 +470,175 @@ send_ldap_result(
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ARGS, 
                "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
-               err, matched ? matched : "", text ? text : "" );
+               rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
+               rs->sr_text ? rs->sr_text : "" );
 #else
        Debug( LDAP_DEBUG_ARGS,
                "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
-               err, matched ?  matched : "", text ? text : "" );
+               rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
+               rs->sr_text ? rs->sr_text : "" );
 #endif
 
 
-       if( ref ) {
+       if( rs->sr_ref ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ARGS, 
                        "send_ldap_result: referral=\"%s\"\n",
-                       ref[0].bv_val ? ref[0].bv_val : "NULL", 0, 0 );
+                       rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL", 0, 0 );
 #else
                Debug( LDAP_DEBUG_ARGS,
                        "send_ldap_result: referral=\"%s\"\n",
-                       ref[0].bv_val ? ref[0].bv_val : "NULL",
+                       rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
                        NULL, NULL );
 #endif
        }
 
-       assert( err != LDAP_PARTIAL_RESULTS );
+       assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 
-       if ( err == LDAP_REFERRAL ) {
-               if( ref == NULL ) {
-                       err = LDAP_NO_SUCH_OBJECT;
+       if ( rs->sr_err == LDAP_REFERRAL ) {
+#ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
+               if( op->o_domain_scope ) {
+                       rs->sr_ref = NULL;
+               }
+#endif
+               if( rs->sr_ref == NULL ) {
+                       rs->sr_err = LDAP_NO_SUCH_OBJECT;
                } else if ( op->o_protocol < LDAP_VERSION3 ) {
-                       err = LDAP_PARTIAL_RESULTS;
+                       rs->sr_err = LDAP_PARTIAL_RESULTS;
                }
        }
 
+#ifdef LDAP_SLAPI
+       /*
+        * Call pre-result plugins. To avoid infinite recursion plugins
+        * should just set SLAPI_RESULT_CODE rather than sending a
+        * result if they wish to change the result.
+        */
+       if ( op->o_pb ) {
+               slapi_x_pblock_set_operation( op->o_pb, op );
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
+               slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED, (void *)rs->sr_matched );
+
+               (void) doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN, op->o_pb );
+       }
+#endif /* LDAP_SLAPI */
+
        if ( op->o_protocol < LDAP_VERSION3 ) {
-               tmp = v2ref( ref, text );
-               text = tmp;
-               ref = NULL;
+               tmp = v2ref( rs->sr_ref, rs->sr_text );
+               rs->sr_text = tmp;
+               rs->sr_ref = NULL;
        }
 
-       tag = req2res( op->o_tag );
-       msgid = (tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+       rs->sr_tag = req2res( op->o_tag );
+       rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 
-       send_ldap_response( conn, op, tag, msgid,
-               err, matched, text, ref,
-               NULL, NULL, NULL, ctrls );
+       send_ldap_response( op, rs );
 
-       Statslog( LDAP_DEBUG_STATS,
-           "conn=%lu op=%lu RESULT tag=%lu err=%d text=%s\n",
-               op->o_connid, op->o_opid, tag, err, text ? text : "" );
+       if ( op->o_tag == LDAP_REQ_SEARCH ) {
+               char nbuf[64];
+               snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
+                       rs->sr_err, rs->sr_nentries );
 
-       if( tmp != NULL ) {
-               ch_free(tmp);
+               Statslog( LDAP_DEBUG_STATS,
+               "conn=%lu op=%lu SEARCH RESULT tag=%lu err=%s text=%s\n",
+                       op->o_connid, op->o_opid, rs->sr_tag, nbuf,
+                       rs->sr_text ? rs->sr_text : "" );
+       } else {
+               Statslog( LDAP_DEBUG_STATS,
+                       "conn=%lu op=%lu RESULT tag=%lu err=%d text=%s\n",
+                       op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err,
+                       rs->sr_text ? rs->sr_text : "" );
        }
+
+       if( tmp != NULL ) ch_free(tmp);
+       rs->sr_text = otext;
+       rs->sr_ref = oref;
 }
 
 void
-send_ldap_sasl(
-    Connection *conn,
-    Operation  *op,
-    ber_int_t  err,
-    const char *matched,
-    const char *text,
-       BerVarray ref,
-       LDAPControl **ctrls,
-       struct berval *cred
-)
+send_ldap_sasl( Operation *op, SlapReply *rs )
 {
-       ber_tag_t tag;
-       ber_int_t msgid;
-
+       rs->sr_type = REP_SASL;
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
                "send_ldap_sasl: conn %lu err=%d len=%lu\n",
-               op->o_connid, err, cred ? cred->bv_len : -1 );
+               op->o_connid, rs->sr_err,
+               rs->sr_sasldata ? rs->sr_sasldata->bv_len : -1 );
 #else
        Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
-               err, cred ? (long) cred->bv_len : -1, NULL );
+               rs->sr_err,
+               rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 #endif
 
+       rs->sr_tag = req2res( op->o_tag );
+       rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 
-       tag = req2res( op->o_tag );
-       msgid = (tag != LBER_SEQUENCE) ? op->o_msgid : 0;
-
-       send_ldap_response( conn, op, tag, msgid,
-               err, matched, text, ref,
-               NULL, NULL, cred, ctrls  );
+       send_ldap_response( op, rs );
 }
 
 void
-send_ldap_extended(
-    Connection *conn,
-    Operation  *op,
-    ber_int_t  err,
-    const char *matched,
-    const char *text,
-    BerVarray  refs,
-    const char         *rspoid,
-       struct berval *rspdata,
-       LDAPControl **ctrls
-)
+slap_send_ldap_extended( Operation *op, SlapReply *rs )
 {
-       ber_tag_t tag;
-       ber_int_t msgid;
+       rs->sr_type = REP_EXTENDED;
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
                "send_ldap_extended: err=%d oid=%s len=%ld\n",
-               err, rspoid ? rspoid : "",
-               rspdata != NULL ? rspdata->bv_len : 0 );
+               rs->sr_err, rs->sr_rspoid ? rs->sr_rspoid : "",
+               rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 #else
        Debug( LDAP_DEBUG_TRACE,
-               "send_ldap_extended err=%d oid=%s len=%ld\n",
-               err,
-               rspoid ? rspoid : "",
-               rspdata != NULL ? rspdata->bv_len : 0 );
+               "send_ldap_extended: err=%d oid=%s len=%ld\n",
+               rs->sr_err,
+               rs->sr_rspoid ? rs->sr_rspoid : "",
+               rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 #endif
 
+       rs->sr_tag = req2res( op->o_tag );
+       rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 
-       tag = req2res( op->o_tag );
-       msgid = (tag != LBER_SEQUENCE) ? op->o_msgid : 0;
-
-       send_ldap_response( conn, op, tag, msgid,
-               err, matched, text, refs,
-               rspoid, rspdata, NULL, ctrls );
+       send_ldap_response( op, rs );
 }
 
-
 void
-send_search_result(
-    Connection *conn,
-    Operation  *op,
-    ber_int_t  err,
-    const char *matched,
-       const char      *text,
-    BerVarray  refs,
-       LDAPControl **ctrls,
-    int                nentries
-)
+slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 {
-       ber_tag_t tag;
-       ber_int_t msgid;
-       char *tmp = NULL;
-
-       assert( !LDAP_API_ERROR( err ) );
-
-       if (op->o_callback && op->o_callback->sc_sresult) {
-               op->o_callback->sc_sresult(conn, op, err, matched, text, refs,
-                       ctrls, nentries);
-               return;
-       }
-
+       rs->sr_type = REP_INTERMEDIATE;
 #ifdef NEW_LOGGING
-       LDAP_LOG( OPERATION, ENTRY, 
-               "send_search_result: err=%d matched=\"%s\" text=\"%s\"\n",
-               err, matched ? matched : "", text ? text : "" );
+       LDAP_LOG( OPERATION, ENTRY,
+               "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
+               rs->sr_err, rs->sr_rspoid ? rs->sr_rspoid : "",
+               rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 #else
        Debug( LDAP_DEBUG_TRACE,
-               "send_search_result: err=%d matched=\"%s\" text=\"%s\"\n",
-               err, matched ?  matched : "", text ? text : "" );
+               "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
+               rs->sr_err,
+               rs->sr_rspoid ? rs->sr_rspoid : "",
+               rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 #endif
-
-
-       assert( err != LDAP_PARTIAL_RESULTS );
-
-       if( op->o_protocol < LDAP_VERSION3 ) {
-               /* send references in search results */
-               if( err == LDAP_REFERRAL ) {
-                       err = LDAP_PARTIAL_RESULTS;
-               }
-
-               tmp = v2ref( refs, text );
-               text = tmp;
-               refs = NULL;
-
-       } else {
-               /* don't send references in search results */
-               assert( refs == NULL );
-               refs = NULL;
-
-               if( err == LDAP_REFERRAL ) {
-                       err = LDAP_SUCCESS;
-               }
-       }
-
-       tag = req2res( op->o_tag );
-       msgid = (tag != LBER_SEQUENCE) ? op->o_msgid : 0;
-
-       send_ldap_response( conn, op, tag, msgid,
-               err, matched, text, refs,
-               NULL, NULL, NULL, ctrls );
-
-       {
-       char nbuf[64];
-       snprintf( nbuf, sizeof nbuf, "%d nentries=%d", err, nentries );
-
-       Statslog( LDAP_DEBUG_STATS,
-           "conn=%lu op=%lu SEARCH RESULT tag=%lu err=%s text=%s\n",
-               op->o_connid, op->o_opid, tag, nbuf, text ? text : "" );
-       }
-
-       if (tmp != NULL) {
-           ch_free(tmp);
-       }
+       rs->sr_tag = LDAP_RES_INTERMEDIATE;
+       rs->sr_msgid = op->o_msgid;
+       send_ldap_response( op, rs );
 }
 
 int
-send_search_entry(
-    Backend    *be,
-    Connection *conn,
-    Operation  *op,
-    Entry      *e,
-    AttributeName      *attrs,
-    int                attrsonly,
-       LDAPControl **ctrls
-)
+slap_send_search_entry( Operation *op, SlapReply *rs )
 {
-       char            berbuf[256];
-       BerElement      *ber = (BerElement *)berbuf;
+       BerElementBuffer berbuf;
+       BerElement      *ber = (BerElement *) &berbuf;
        Attribute       *a, *aa;
        int             i, j, rc=-1, bytes;
        char            *edn;
        int             userattrs;
        int             opattrs;
-       static AccessControlState acl_state_init = ACL_STATE_INIT;
-       AccessControlState acl_state;
+       AccessControlState acl_state = ACL_STATE_INIT;
+#ifdef LDAP_SLAPI
+       /* Support for computed attribute plugins */
+       computed_attr_context    ctx;
+       AttributeName   *anp;
+#endif
+       void            *mark = NULL;
 
        AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 
@@ -674,64 +648,74 @@ send_search_entry(
         */
        char **e_flags = NULL;
 
-       if (op->o_callback && op->o_callback->sc_sendentry) {
-               return op->o_callback->sc_sendentry( be, conn, op, e, attrs,
-                       attrsonly, ctrls );
+       rs->sr_type = REP_SEARCH;
+       if (op->o_callback && op->o_callback->sc_response) {
+               rc = op->o_callback->sc_response( op, rs );
+               if ( rc != SLAP_CB_CONTINUE ) return rc;
        }
 
 #ifdef NEW_LOGGING
-       LDAP_LOG( OPERATION, ENTRY, 
-               "send_search_entry: conn %lu    dn=\"%s\"%s\n",
-               op->o_connid, e->e_dn, attrsonly ? " (attrsOnly)" : "" );
+       LDAP_LOG( OPERATION, ENTRY, "send_search_entry: conn %lu        dn=\"%s\"%s\n",
+               op->o_connid, rs->sr_entry->e_name.bv_val,
+               op->ors_attrsonly ? " (attrsOnly)" : "" );
 #else
-       Debug( LDAP_DEBUG_TRACE,
-               "=> send_search_entry: dn=\"%s\"%s\n",
-               e->e_dn, attrsonly ? " (attrsOnly)" : "", 0 );
+       Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: dn=\"%s\"%s\n",
+               rs->sr_entry->e_name.bv_val,
+               op->ors_attrsonly ? " (attrsOnly)" : "", 0 );
 #endif
 
-       if ( ! access_allowed( be, conn, op, e,
-               ad_entry, NULL, ACL_READ, NULL ) )
-       {
+       mark = sl_mark( op->o_tmpmemctx );
+
+       if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 #ifdef NEW_LOGGING
                LDAP_LOG( ACL, INFO, 
                        "send_search_entry: conn %lu access to entry (%s) not allowed\n", 
-                       op->o_connid, e->e_dn, 0 );
+                       op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "send_search_entry: access to entry not allowed\n",
                    0, 0, 0 );
 #endif
 
+               sl_release( mark, op->o_tmpmemctx );
                return( 1 );
        }
 
-       edn = e->e_ndn;
+       edn = rs->sr_entry->e_nname.bv_val;
 
-       ber_init_w_nullc( ber, LBER_USE_DER );
+       if ( op->o_res_ber ) {
+               /* read back control or LDAP_CONNECTIONLESS */
+           ber = op->o_res_ber;
+       } else {
+               ber_len_t       siz, len;
+               struct berval   bv;
 
-#ifdef LDAP_CONNECTIONLESS
-       if (conn->c_is_udp) {
-           rc = ber_write(ber, (char *)&op->o_peeraddr, sizeof(struct sockaddr), 0);
-           if (rc != sizeof(struct sockaddr)) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                       "send_search_entry: conn %lu  ber_printf failed\n",
-                       conn ? conn->c_connid : 0, 0, 0 );
-#else
-               Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
-#endif
-               ber_free_buf( ber );
-               return( 1 );
-           }
+               entry_flatsize( rs->sr_entry, &siz, &len, 0 );
+               bv.bv_len = siz + len;
+               bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
+
+               ber_init2( ber, &bv, LBER_USE_DER );
+               ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
        }
-       if (conn->c_is_udp && op->o_protocol == LDAP_VERSION2) {
-           rc = ber_printf( ber, "{is{t{O{" /*}}}*/,
-               op->o_msgid, "", LDAP_RES_SEARCH_ENTRY, &e->e_name );
+
+#ifdef LDAP_CONNECTIONLESS
+       if ( op->o_conn && op->o_conn->c_is_udp ) {
+               /* CONNECTIONLESS */
+               if ( op->o_protocol == LDAP_VERSION2 ) {
+               rc = ber_printf(ber, "t{O{" /*}}*/,
+                               LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+               } else {
+               rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
+                               LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+               }
        } else
-#endif /* LDAP_CONNECTIONLESS */
-       {
+#endif
+       if ( op->o_res_ber ) {
+               /* read back control */
+           rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
+       } else {
            rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
-               LDAP_RES_SEARCH_ENTRY, &e->e_name );
+                       LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
        }
 
        if ( rc == -1 ) {
@@ -743,62 +727,79 @@ send_search_entry(
                Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-               ber_free_buf( ber );
-               send_ldap_result( conn, op, LDAP_OTHER,
-                   NULL, "encoding DN error", NULL, NULL );
+               if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+               send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
                goto error_return;
        }
 
        /* check for special all user attributes ("*") type */
-       userattrs = ( attrs == NULL ) ? 1
-               : an_find( attrs, &AllUser );
+       userattrs = ( rs->sr_attrs == NULL ) ? 1
+               : an_find( rs->sr_attrs, &AllUser );
 
        /* check for special all operational attributes ("+") type */
-       opattrs = ( attrs == NULL ) ? 0
-               : an_find( attrs, &AllOper );
+       opattrs = ( rs->sr_attrs == NULL ) ? 0
+               : an_find( rs->sr_attrs, &AllOper );
 
        /* create an array of arrays of flags. Each flag corresponds
         * to particular value of attribute and equals 1 if value matches
         * to ValuesReturnFilter or 0 if not
         */     
-       if ( op->vrFilter != NULL ) {
-               int k = 0;
-               char *a_flags;
+       if ( op->o_vrFilter != NULL ) {
+               int     k = 0;
+               size_t  size;
 
-               for ( a = e->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
+               for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
                        for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
                }
-               e_flags = ch_calloc ( 1, i * sizeof(char *) + k );
-               a_flags = (char *)(e_flags + i);
-               for ( a = e->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
-                       for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
-                       e_flags[i] = a_flags;
-                       a_flags += j;
-               }
 
-               rc = filter_matched_values(be, conn, op, e->e_attrs, &e_flags) ; 
-               if ( rc == -1 ) {
+               size = i * sizeof(char *) + k;
+               if ( size > 0 ) {
+                       char    *a_flags;
+                       e_flags = sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
+                       if( e_flags == NULL ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG( OPERATION, ERR, 
-                               "send_search_entry: conn %lu matched values filtering failed\n",
-                               conn ? conn->c_connid : 0, 0, 0 );
+                               LDAP_LOG( OPERATION, ERR, 
+                                       "send_search_entry: conn %lu sl_calloc failed\n",
+                                       op->o_connid ? op->o_connid : 0, 0, 0 );
 #else
-               Debug( LDAP_DEBUG_ANY,
-                               "matched values filtering failed\n", 0, 0, 0 );
+                       Debug( LDAP_DEBUG_ANY, 
+                                       "send_search_entry: sl_calloc failed\n", 0, 0, 0 );
 #endif
-                       ber_free( ber, 1 );
-
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                               NULL, "matched values filtering error", 
-                               NULL, NULL );
-                       goto error_return;
+                               ber_free( ber, 1 );
+       
+                               send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
+                               goto error_return;
+                       }
+                       a_flags = (char *)(e_flags + i);
+                       memset( a_flags, 0, k );
+                       for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
+                               for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
+                               e_flags[i] = a_flags;
+                               a_flags += j;
+                       }
+       
+                       rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ; 
+                       if ( rc == -1 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG( OPERATION, ERR, "send_search_entry: "
+                                       "conn %lu matched values filtering failed\n",
+                                       op->o_connid ? op->o_connid : 0, 0, 0 );
+#else
+                       Debug( LDAP_DEBUG_ANY,
+                                       "matched values filtering failed\n", 0, 0, 0 );
+#endif
+                               if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                               send_ldap_error( op, rs, LDAP_OTHER,
+                                       "matched values filtering error" );
+                               goto error_return;
+                       }
                }
        }
 
-       for ( a = e->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
+       for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
                AttributeDescription *desc = a->a_desc;
 
-               if ( attrs == NULL ) {
+               if ( rs->sr_attrs == NULL ) {
                        /* all attrs request, skip operational attributes */
                        if( is_at_operational( desc->ad_type ) ) {
                                continue;
@@ -807,20 +808,18 @@ send_search_entry(
                } else {
                        /* specific attrs requested */
                        if ( is_at_operational( desc->ad_type ) ) {
-                               if( !opattrs && !ad_inlist( desc, attrs ) ) {
+                               if( !opattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
                                        continue;
                                }
 
                        } else {
-                               if (!userattrs && !ad_inlist( desc, attrs ) ) {
+                               if (!userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
                                        continue;
                                }
                        }
                }
 
-               acl_state = acl_state_init;
-
-               if ( ! access_allowed( be, conn, op, e, desc, NULL,
+               if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
                        ACL_READ, &acl_state ) )
                {
 #ifdef NEW_LOGGING
@@ -844,15 +843,14 @@ send_search_entry(
                        Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                       ber_free_buf( ber );
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                           NULL, "encoding description error", NULL, NULL );
+                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                       send_ldap_error( op, rs, LDAP_OTHER, "encoding description error");
                        goto error_return;
                }
 
-               if ( ! attrsonly ) {
+               if ( ! op->ors_attrsonly ) {
                        for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
-                               if ( ! access_allowed( be, conn, op, e,
+                               if ( ! access_allowed( op, rs->sr_entry,
                                        desc, &a->a_vals[i], ACL_READ, &acl_state ) )
                                {
 #ifdef NEW_LOGGING
@@ -870,7 +868,7 @@ send_search_entry(
                                        continue;
                                }
 
-                               if ( op->vrFilter && e_flags[j][i] == 0 ){
+                               if ( op->o_vrFilter && e_flags[j][i] == 0 ){
                                        continue;
                                }
 
@@ -884,10 +882,9 @@ send_search_entry(
                                            "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                                       ber_free_buf( ber );
-                                       send_ldap_result( conn, op, LDAP_OTHER,
-                                               NULL, "encoding values error",
-                                               NULL, NULL );
+                                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                                       send_ldap_error( op, rs, LDAP_OTHER,
+                                               "encoding values error" );
                                        goto error_return;
                                }
                        }
@@ -902,62 +899,85 @@ send_search_entry(
                        Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                       ber_free_buf( ber );
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                           NULL, "encode end error", NULL, NULL );
+                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                       send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
                        goto error_return;
                }
        }
 
-       /* free e_flags */
-       if ( e_flags ) {
-               free( e_flags );
-               e_flags = NULL;
-       }
-
        /* eventually will loop through generated operational attributes */
-       /* only have subschemaSubentry implemented */
-       aa = backend_operational( be, conn, op, e, attrs, opattrs );
+       /* only have subschemaSubentry and numSubordinates are implemented */
+       aa = backend_operational( op, rs, opattrs );
 
-       if ( aa != NULL && op->vrFilter != NULL ) {
-               int k = 0;
-               char *a_flags;
+       if ( aa != NULL && op->o_vrFilter != NULL ) {
+               int     k = 0;
+               size_t  size;
 
                for ( a = aa, i=0; a != NULL; a = a->a_next, i++ ) {
                        for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
                }
-               e_flags = ch_calloc ( 1, i * sizeof(char *) + k );
-               a_flags = (char *)(e_flags + i);
-               for ( a = e->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
-                       for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
-                       e_flags[i] = a_flags;
-                       a_flags += j;
-               }
-               rc = filter_matched_values(be, conn, op, aa, &e_flags) ; 
-           
-               if ( rc == -1 ) {
+
+               size = i * sizeof(char *) + k;
+               if ( size > 0 ) {
+                       char    *a_flags, **tmp;
+               
+                       /*
+                        * Reuse previous memory - we likely need less space
+                        * for operational attributes
+                        */
+                       tmp = sl_realloc( e_flags, i * sizeof(char *) + k,
+                               op->o_tmpmemctx );
+                       if ( tmp == NULL ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG( OPERATION, ERR, 
-                               "send_search_entry: conn %lu "
-                               "matched values filtering failed\n", 
-                               conn ? conn->c_connid : 0, 0, 0);
+                               LDAP_LOG( OPERATION, ERR, 
+                                       "send_search_entry: conn %lu "
+                                       "not enough memory "
+                                       "for matched values filtering\n", 
+                                       op->o_connid, 0, 0);
 #else
-               Debug( LDAP_DEBUG_ANY,
-                               "matched values filtering failed\n", 0, 0, 0 );
+                               Debug( LDAP_DEBUG_ANY,
+                                       "send_search_entry: conn %lu "
+                                       "not enough memory "
+                                       "for matched values filtering\n",
+                                       op->o_connid, 0, 0 );
 #endif
-                       ber_free( ber, 1 );
-
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                               NULL, "matched values filtering error", 
-                               NULL, NULL );
-                       goto error_return;
+                               if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                               send_ldap_error( op, rs, LDAP_OTHER,
+                                       "not enough memory for matched values filtering" );
+                               goto error_return;
+                       }
+                       e_flags = tmp;
+                       a_flags = (char *)(e_flags + i);
+                       memset( a_flags, 0, k );
+                       for ( a = aa, i=0; a != NULL; a = a->a_next, i++ ) {
+                               for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
+                               e_flags[i] = a_flags;
+                               a_flags += j;
+                       }
+                       rc = filter_matched_values(op, aa, &e_flags) ; 
+                   
+                       if ( rc == -1 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG( OPERATION, ERR, 
+                                       "send_search_entry: conn %lu "
+                                       "matched values filtering failed\n", 
+                                       op->o_connid ? op->o_connid : 0, 0, 0);
+#else
+                               Debug( LDAP_DEBUG_ANY,
+                                       "matched values filtering failed\n", 0, 0, 0 );
+#endif
+                               if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                               send_ldap_error( op, rs, LDAP_OTHER,
+                                       "matched values filtering error" );
+                               goto error_return;
+                       }
                }
        }
 
        for (a = aa, j=0; a != NULL; a = a->a_next, j++ ) {
                AttributeDescription *desc = a->a_desc;
 
-               if ( attrs == NULL ) {
+               if ( rs->sr_attrs == NULL ) {
                        /* all attrs request, skip operational attributes */
                        if( is_at_operational( desc->ad_type ) ) {
                                continue;
@@ -966,20 +986,17 @@ send_search_entry(
                } else {
                        /* specific attrs requested */
                        if( is_at_operational( desc->ad_type ) ) {
-                               if( !opattrs && !ad_inlist( desc, attrs ) ) {
+                               if( !opattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
                                        continue;
                                }
                        } else {
-                               if (!userattrs && !ad_inlist( desc, attrs ) )
-                               {
+                               if (!userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
                                        continue;
                                }
                        }
                }
 
-               acl_state = acl_state_init;
-
-               if ( ! access_allowed( be, conn, op, e, desc, NULL,
+               if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
                        ACL_READ, &acl_state ) )
                {
 #ifdef NEW_LOGGING
@@ -988,9 +1005,8 @@ send_search_entry(
                                "access to attribute %s not allowed\n",
                                op->o_connid, desc->ad_cname.bv_val, 0 );
 #else
-                       Debug( LDAP_DEBUG_ACL, "acl: access to attribute %s "
-                                       "not allowed\n",
-                                       desc->ad_cname.bv_val, 0, 0 );
+                       Debug( LDAP_DEBUG_ACL, "send_search_entry: access to attribute %s "
+                               "not allowed\n", desc->ad_cname.bv_val, 0, 0 );
 #endif
 
                        continue;
@@ -1006,17 +1022,15 @@ send_search_entry(
                        Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                       ber_free_buf( ber );
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                           NULL, "encoding description error", NULL, NULL );
-
+                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                       send_ldap_error( op, rs, LDAP_OTHER, "encoding description error" );
                        attrs_free( aa );
                        goto error_return;
                }
 
-               if ( ! attrsonly ) {
+               if ( ! op->ors_attrsonly ) {
                        for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
-                               if ( ! access_allowed( be, conn, op, e,
+                               if ( ! access_allowed( op, rs->sr_entry,
                                        desc, &a->a_vals[i], ACL_READ, &acl_state ) )
                                {
 #ifdef NEW_LOGGING
@@ -1026,7 +1040,7 @@ send_search_entry(
                                                op->o_connid, desc->ad_cname.bv_val, i );
 #else
                                        Debug( LDAP_DEBUG_ACL,
-                                               "acl: access to attribute %s, "
+                                               "send_search_entry: access to attribute %s, "
                                                "value %d not allowed\n",
                                                desc->ad_cname.bv_val, i, 0 );
 #endif
@@ -1034,7 +1048,7 @@ send_search_entry(
                                        continue;
                                }
 
-                               if ( op->vrFilter && e_flags[j][i] == 0 ){
+                               if ( op->o_vrFilter && e_flags[j][i] == 0 ){
                                        continue;
                                }
 
@@ -1048,11 +1062,9 @@ send_search_entry(
                                            "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                                       ber_free_buf( ber );
-                                       send_ldap_result( conn, op, LDAP_OTHER,
-                                               NULL, "encoding values error", 
-                                               NULL, NULL );
-
+                                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                                       send_ldap_error( op, rs, LDAP_OTHER,
+                                               "encoding values error" );
                                        attrs_free( aa );
                                        goto error_return;
                                }
@@ -1068,36 +1080,81 @@ send_search_entry(
                        Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-                       ber_free_buf( ber );
-                       send_ldap_result( conn, op, LDAP_OTHER,
-                           NULL, "encode end error", NULL, NULL );
-
+                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                       send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
                        attrs_free( aa );
                        goto error_return;
                }
        }
 
+#ifdef LDAP_SLAPI
+       /*
+        * First, setup the computed attribute context that is
+        * passed to all plugins.
+        */
+       if ( op->o_pb ) {
+               ctx.cac_pb = op->o_pb;
+               ctx.cac_attrs = rs->sr_attrs;
+               ctx.cac_attrsonly = op->ors_attrsonly;
+               ctx.cac_userattrs = userattrs;
+               ctx.cac_opattrs = opattrs;
+               ctx.cac_acl_state = acl_state;
+               ctx.cac_private = (void *)ber;
+
+               /*
+                * For each client requested attribute, call the plugins.
+                */
+               if ( rs->sr_attrs != NULL ) {
+                       for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
+                               rc = compute_evaluator( &ctx, anp->an_name.bv_val,
+                                       rs->sr_entry, slapi_x_compute_output_ber );
+                               if ( rc == 1 ) {
+                                       break;
+                               }
+                       }
+               } else {
+                       /*
+                        * Technically we shouldn't be returning operational attributes
+                        * when the user requested only user attributes. We'll let the
+                        * plugin decide whether to be naughty or not.
+                        */
+                       rc = compute_evaluator( &ctx, "*",
+                               rs->sr_entry, slapi_x_compute_output_ber );
+               }
+               if ( rc == 1 ) {
+                       if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+                       send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
+                       goto error_return;
+               }
+       }
+#endif /* LDAP_SLAPI */
+
        /* free e_flags */
        if ( e_flags ) {
-               free( e_flags );
+               sl_free( e_flags, op->o_tmpmemctx );
                e_flags = NULL;
        }
 
        attrs_free( aa );
        rc = ber_printf( ber, /*{{*/ "}N}" );
 
-       if( rc != -1 && ctrls != NULL ) {
-               rc = send_ldap_controls( ber, ctrls );
+       if( rc != -1 && rs->sr_ctrls != NULL ) {
+               rc = send_ldap_controls( ber, rs->sr_ctrls );
        }
 
        if( rc != -1 ) {
-               rc = ber_printf( ber, /*{*/ "N}" );
-       }
-
 #ifdef LDAP_CONNECTIONLESS
-       if (conn->c_is_udp && op->o_protocol == LDAP_VERSION2 && rc != -1)
-               rc = ber_printf( ber, "}" );
+               if( op->o_conn && op->o_conn->c_is_udp ) {
+                       if ( op->o_protocol != LDAP_VERSION2 ) {
+                               rc = ber_printf( ber, /*{*/ "N}" );
+                       }
+               } else
 #endif
+               if ( op->o_res_ber == NULL ) {
+                       rc = ber_printf( ber, /*{*/ "N}" );
+               }
+       }
+
        if ( rc == -1 ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR, 
@@ -1107,37 +1164,41 @@ send_search_entry(
                Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 #endif
 
-               ber_free_buf( ber );
-               send_ldap_result( conn, op, LDAP_OTHER,
-                       NULL, "encode entry end error", NULL, NULL );
+               if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+               send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
+               sl_release( mark, op->o_tmpmemctx );
                return( 1 );
        }
 
-       bytes = send_ldap_ber( conn, ber );
-       ber_free_buf( ber );
+       if ( op->o_res_ber == NULL ) {
+               bytes = op->o_noop ? 0 : send_ldap_ber( op->o_conn, ber );
+               ber_free_buf( ber );
 
-       if ( bytes < 0 ) {
+               if ( bytes < 0 ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                          "send_search_entry: conn %lu  ber write failed.\n", 
-                          op->o_connid, 0, 0 );
+                       LDAP_LOG( OPERATION, ERR, 
+                               "send_search_entry: conn %lu  ber write failed.\n", 
+                               op->o_connid, 0, 0 );
 #else
-               Debug( LDAP_DEBUG_ANY,
-                       "send_search_entry: ber write failed\n",
-                       0, 0, 0 );
+                       Debug( LDAP_DEBUG_ANY,
+                               "send_search_entry: ber write failed\n",
+                               0, 0, 0 );
 #endif
 
-               return -1;
-       }
+                       sl_release( mark, op->o_tmpmemctx );
+                       return -1;
+               }
+               rs->sr_nentries++;
 
-       ldap_pvt_thread_mutex_lock( &num_sent_mutex );
-       num_bytes_sent += bytes;
-       num_entries_sent++;
-       num_pdu_sent++;
-       ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
+               ldap_pvt_thread_mutex_lock( &num_sent_mutex );
+               num_bytes_sent += bytes;
+               num_entries_sent++;
+               num_pdu_sent++;
+               ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
+       }
 
        Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu ENTRY dn=\"%s\"\n",
-           conn->c_connid, op->o_opid, e->e_dn, 0, 0 );
+           op->o_connid, op->o_opid, rs->sr_entry->e_dn, 0, 0 );
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
@@ -1149,57 +1210,60 @@ send_search_entry(
        rc = 0;
 
 error_return:;
-       if ( e_flags ) free( e_flags );
+       sl_release( mark, op->o_tmpmemctx );
+       if ( e_flags ) sl_free( e_flags, op->o_tmpmemctx );
        return( rc );
 }
 
 int
-send_search_reference(
-    Backend    *be,
-    Connection *conn,
-    Operation  *op,
-    Entry      *e,
-       BerVarray refs,
-       LDAPControl **ctrls,
-    BerVarray *v2refs
-)
+slap_send_search_reference( Operation *op, SlapReply *rs )
 {
-       char            berbuf[256];
-       BerElement      *ber = (BerElement *)berbuf;
-       int rc;
+       BerElementBuffer berbuf;
+       BerElement      *ber = (BerElement *) &berbuf;
+       int rc = 0;
        int bytes;
+       void *mark;
 
        AttributeDescription *ad_ref = slap_schema.si_ad_ref;
        AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 
+       rs->sr_type = REP_SEARCHREF;
+       if (op->o_callback && op->o_callback->sc_response) {
+               rc = op->o_callback->sc_response( op, rs );
+               if ( rc != SLAP_CB_CONTINUE ) return rc;
+       }
+
+       mark = sl_mark( op->o_tmpmemctx );
+
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
                "send_search_reference: conn %lu  dn=\"%s\"\n", 
-               op->o_connid, e->e_dn, 0 );
+               op->o_connid,
+               rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0 );
 #else
        Debug( LDAP_DEBUG_TRACE,
                "=> send_search_reference: dn=\"%s\"\n",
-               e->e_dn, 0, 0 );
+               rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
 #endif
 
-
-       if ( ! access_allowed( be, conn, op, e,
+       if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
                ad_entry, NULL, ACL_READ, NULL ) )
        {
 #ifdef NEW_LOGGING
                LDAP_LOG( ACL, INFO, 
                        "send_search_reference: conn %lu        "
-                       "access to entry %s not allowed\n", op->o_connid, e->e_dn, 0 );
+                       "access to entry %s not allowed\n",
+                       op->o_connid, rs->sr_entry->e_dn, 0 );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "send_search_reference: access to entry not allowed\n",
                    0, 0, 0 );
 #endif
-
-               return( 1 );
+               rc = 1;
+               goto rel;
        }
 
-       if ( ! access_allowed( be, conn, op, e,
+       if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
                ad_ref, NULL, ACL_READ, NULL ) )
        {
 #ifdef NEW_LOGGING
@@ -1212,44 +1276,69 @@ send_search_reference(
                        "to reference not allowed\n",
                    0, 0, 0 );
 #endif
+               rc = 1;
+               goto rel;
+       }
 
-               return( 1 );
+#ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
+       if( op->o_domain_scope ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, 
+                       "send_search_reference: conn %lu domainScope control in (%s).\n",
+                       op->o_connid, rs->sr_entry->e_dn, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY,
+                       "send_search_reference: domainScope control in (%s)\n", 
+                       rs->sr_entry->e_dn, 0, 0 );
+#endif
+               rc = 0;
+               goto rel;
        }
+#endif
 
-       if( refs == NULL ) {
+       if( rs->sr_ref == NULL ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( OPERATION, ERR, 
                        "send_search_reference: conn %lu null ref in (%s).\n",
-                       op->o_connid, e->e_dn, 0 );
+                       op->o_connid, rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0 );
 #else
                Debug( LDAP_DEBUG_ANY,
                        "send_search_reference: null ref in (%s)\n", 
-                       e->e_dn, 0, 0 );
+                       rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
 #endif
-
-               return( 1 );
+               rc = 1;
+               goto rel;
        }
 
        if( op->o_protocol < LDAP_VERSION3 ) {
                /* save the references for the result */
-               if( refs[0].bv_val != NULL ) {
-                       value_add( v2refs, refs );
+               if( rs->sr_ref[0].bv_val != NULL ) {
+                       if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
+                               return LDAP_OTHER;
                }
-               return 0;
+               rc = 0;
+               goto rel;
        }
 
-       ber_init_w_nullc( ber, LBER_USE_DER );
+#ifdef LDAP_CONNECTIONLESS
+       if( op->o_conn && op->o_conn->c_is_udp ) {
+               ber = op->o_res_ber;
+       } else
+#endif
+       {
+               ber_init_w_nullc( ber, LBER_USE_DER );
+               ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+       }
 
        rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
-               LDAP_RES_SEARCH_REFERENCE, refs );
+               LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
 
-       if( rc != -1 && ctrls != NULL ) {
-               rc = send_ldap_controls( ber, ctrls );
+       if( rc != -1 && rs->sr_ctrls != NULL ) {
+               rc = send_ldap_controls( ber, rs->sr_ctrls );
        }
 
        if( rc != -1 ) {
-               rc = ber_printf( ber, /*"{"*/ "N}", op->o_msgid,
-                       LDAP_RES_SEARCH_REFERENCE, refs );
+               rc = ber_printf( ber, /*"{"*/ "N}" );
        }
 
        if ( rc == -1 ) {
@@ -1262,13 +1351,18 @@ send_search_reference(
                        "send_search_reference: ber_printf failed\n", 0, 0, 0 );
 #endif
 
+#ifdef LDAP_CONNECTIONLESS
+               if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
                ber_free_buf( ber );
-               send_ldap_result( conn, op, LDAP_OTHER,
-                       NULL, "encode DN error", NULL, NULL );
-               return -1;
+               send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
+               goto rel;
        }
 
-       bytes = send_ldap_ber( conn, ber );
+#ifdef LDAP_CONNECTIONLESS
+       if (!op->o_conn || op->o_conn->c_is_udp == 0) {
+#endif
+       bytes = op->o_noop ? 0 : send_ldap_ber( op->o_conn, ber );
        ber_free_buf( ber );
 
        ldap_pvt_thread_mutex_lock( &num_sent_mutex );
@@ -1276,9 +1370,12 @@ send_search_reference(
        num_refs_sent++;
        num_pdu_sent++;
        ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
+#ifdef LDAP_CONNECTIONLESS
+       }
+#endif
 
        Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu REF dn=\"%s\"\n",
-               conn->c_connid, op->o_opid, e->e_dn, 0, 0 );
+               op->o_connid, op->o_opid, rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
 
 #ifdef NEW_LOGGING
        LDAP_LOG( OPERATION, ENTRY, 
@@ -1287,10 +1384,11 @@ send_search_reference(
        Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
 #endif
 
-       return 0;
+rel:
+       sl_release( mark, op->o_tmpmemctx );
+       return rc;
 }
 
-
 int
 str2result(
     char       *s,
@@ -1354,3 +1452,57 @@ str2result(
 
        return( rc );
 }
+
+int slap_read_controls(
+       Operation *op,
+       SlapReply *rs,
+       Entry *e,
+       const struct berval *oid,
+       LDAPControl **ctrl )
+{
+       int rc;
+       struct berval bv;
+       BerElementBuffer berbuf;
+       BerElement *ber = (BerElement *) &berbuf;
+       LDAPControl c;
+       ber_len_t       siz, len;
+       Operation myop;
+
+#ifdef NEW_LOGGING
+       LDAP_LOG( OPERATION, INFO, "slap_read_controls: (%s) %s\n",
+               oid->bv_val, e->e_dn, 0 );
+#else
+       Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
+               oid->bv_val, e->e_dn, 0 );
+#endif
+
+       rs->sr_entry = e;
+       rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
+               op->o_preread_attrs : op->o_postread_attrs; 
+
+       entry_flatsize( rs->sr_entry, &siz, &len, 0 );
+       bv.bv_len = siz + len;
+       bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
+
+       ber_init2( ber, &bv, LBER_USE_DER );
+       ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+
+       /* create new operation */
+       myop = *op;
+       myop.o_bd = NULL;
+       myop.o_res_ber = ber;
+
+       rc = slap_send_search_entry( &myop, rs );
+       if( rc ) return rc;
+
+       rc = ber_flatten2( ber, &c.ldctl_value, 0 );
+
+       if( rc == LBER_ERROR ) return LDAP_OTHER;
+
+       c.ldctl_oid = oid->bv_val;
+       c.ldctl_iscritical = 0;
+
+       *ctrl = sl_calloc( 1, sizeof(LDAPControl), NULL );
+       **ctrl = c;
+       return LDAP_SUCCESS;
+}