]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/backglue.c
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[openldap] / servers / slapd / backglue.c
index eaa2804331b7749d198a8024fcd7b5bf294fe380..59ea867f524135cd39a5460cec4e8a6e7536b8ec 100644 (file)
@@ -1,8 +1,17 @@
 /* backglue.c - backend glue routines */
 /* $OpenLDAP$ */
-/*
- * Copyright 2001 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2004 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>.
  */
 
 /*
@@ -29,6 +38,7 @@
 
 #include <stdio.h>
 
+#include <ac/string.h>
 #include <ac/socket.h>
 
 #define SLAPD_TOOLS
 
 typedef struct gluenode {
        BackendDB *be;
-       char *pdn;
+       struct berval pdn;
 } gluenode;
 
 typedef struct glueinfo {
-       BackendDB *be;
+       BackendInfo bi;
+       BackendDB bd;
        int nodes;
        gluenode n[1];
 } glueinfo;
@@ -48,6 +59,8 @@ typedef struct glueinfo {
 static int glueMode;
 static BackendDB *glueBack;
 
+static slap_response glue_back_response;
+
 /* Just like select_backend, but only for our backends */
 static BackendDB *
 glue_back_select (
@@ -55,7 +68,7 @@ glue_back_select (
        const char *dn
 )
 {
-       glueinfo *gi = (glueinfo *) be->be_private;
+       glueinfo *gi = (glueinfo *) be->bd_info;
        struct berval bv;
        int i;
 
@@ -63,7 +76,9 @@ glue_back_select (
        bv.bv_val = (char *) dn;
 
        for (i = 0; i<gi->nodes; i++) {
-               if (dnIsSuffix(&bv, gi->n[i].be->be_nsuffix[0])) {
+               assert( gi->n[i].be->be_nsuffix );
+
+               if (dnIsSuffix(&bv, &gi->n[i].be->be_nsuffix[0])) {
                        return gi->n[i].be;
                }
        }
@@ -97,7 +112,7 @@ glue_back_close (
 )
 {
        static int glueClosed = 0;
-       int rc;
+       int rc = 0;
 
        if (glueClosed) return 0;
 
@@ -114,7 +129,7 @@ glue_back_db_open (
        BackendDB *be
 )
 {
-       glueinfo *gi = (glueinfo *)be->be_private;
+       glueinfo *gi = (glueinfo *) be->bd_info;
        static int glueOpened = 0;
        int rc = 0;
 
@@ -122,10 +137,11 @@ glue_back_db_open (
 
        glueOpened = 1;
 
-       gi->be->be_acl = be->be_acl;
+       gi->bd.be_acl = be->be_acl;
+       gi->bd.be_pending_csn_list = be->be_pending_csn_list;
 
-       if (gi->be->bd_info->bi_db_open)
-               rc = gi->be->bd_info->bi_db_open(gi->be);
+       if (gi->bd.bd_info->bi_db_open)
+               rc = gi->bd.bd_info->bi_db_open(&gi->bd);
 
        return rc;
 }
@@ -135,7 +151,7 @@ glue_back_db_close (
        BackendDB *be
 )
 {
-       glueinfo *gi = (glueinfo *)be->be_private;
+       glueinfo *gi = (glueinfo *) be->bd_info;
        static int glueClosed = 0;
 
        if (glueClosed) return 0;
@@ -143,8 +159,8 @@ glue_back_db_close (
        glueClosed = 1;
 
        /* Close the master */
-       if (gi->be->bd_info->bi_db_close)
-               gi->be->bd_info->bi_db_close( gi->be );
+       if (gi->bd.bd_info->bi_db_close)
+               gi->bd.bd_info->bi_db_close( &gi->bd );
 
        return 0;
 }
@@ -154,148 +170,140 @@ glue_back_db_destroy (
        BackendDB *be
 )
 {
-       glueinfo *gi = (glueinfo *)be->be_private;
+       glueinfo *gi = (glueinfo *) be->bd_info;
 
-       if (gi->be->bd_info->bi_db_destroy)
-               gi->be->bd_info->bi_db_destroy( gi->be );
-       free (gi->be);
+       if (gi->bd.bd_info->bi_db_destroy)
+               gi->bd.bd_info->bi_db_destroy( &gi->bd );
        free (gi);
        return 0;
 }
 
 typedef struct glue_state {
        int err;
-       int nentries;
+       int slimit;
        int matchlen;
        char *matched;
        int nrefs;
-       BVarray refs;
+       BerVarray refs;
 } glue_state;
 
-static void
-glue_back_response (
-       Connection *conn,
-       Operation *op,
-       ber_tag_t tag,
-       ber_int_t msgid,
-       ber_int_t err,
-       const char *matched,
-       const char *text,
-       BVarray ref,
-       const char *resoid,
-       struct berval *resdata,
-       struct berval *sasldata,
-       LDAPControl **ctrls
-)
+static int
+glue_back_response ( Operation *op, SlapReply *rs )
 {
-       glue_state *gs = op->o_glue;
+       glue_state *gs = op->o_callback->sc_private;
 
-       if (err == LDAP_SUCCESS || gs->err != LDAP_SUCCESS)
-               gs->err = err;
-       if (gs->err == LDAP_SUCCESS && gs->matched) {
-               free (gs->matched);
-               gs->matchlen = 0;
-       }
-       if (gs->err != LDAP_SUCCESS && matched) {
-               int len;
-               len = strlen (matched);
-               if (len > gs->matchlen) {
-                       if (gs->matched)
-                               free (gs->matched);
-                       gs->matched = ch_strdup (matched);
-                       gs->matchlen = len;
+       switch(rs->sr_type) {
+       case REP_SEARCH:
+               if ( gs->slimit != -1 && rs->sr_nentries >= gs->slimit ) {
+                       rs->sr_err = gs->err = LDAP_SIZELIMIT_EXCEEDED;
+                       return -1;
                }
-       }
-       if (ref) {
-               int i, j, k;
-               BVarray new;
-
-               for (i=0; ref[i].bv_val; i++);
-
-               j = gs->nrefs;
-               if (!j) {
-                       new = ch_malloc ((i+1)*sizeof(struct berval));
-               } else {
-                       new = ch_realloc(gs->refs,
-                               (j+i+1)*sizeof(struct berval));
+               /* fallthru */
+       case REP_SEARCHREF:
+               return SLAP_CB_CONTINUE;
+
+       default:
+               if (rs->sr_err == LDAP_SUCCESS ||
+                       rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ||
+                       rs->sr_err == LDAP_TIMELIMIT_EXCEEDED ||
+                       rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
+                       rs->sr_err == LDAP_NO_SUCH_OBJECT ||
+                       gs->err != LDAP_SUCCESS)
+                       gs->err = rs->sr_err;
+               if (gs->err == LDAP_SUCCESS && gs->matched) {
+                       ch_free (gs->matched);
+                       gs->matched = NULL;
+                       gs->matchlen = 0;
                }
-               for (k=0; k<i; j++,k++) {
-                       ber_dupbv( &new[j], &ref[k] );
+               if (gs->err != LDAP_SUCCESS && rs->sr_matched) {
+                       int len;
+                       len = strlen (rs->sr_matched);
+                       if (len > gs->matchlen) {
+                               if (gs->matched)
+                                       ch_free (gs->matched);
+                               gs->matched = ch_strdup (rs->sr_matched);
+                               gs->matchlen = len;
+                       }
                }
-               new[j].bv_val = NULL;
-               gs->nrefs = j;
-               gs->refs = new;
-       }
-}
+               if (rs->sr_ref) {
+                       int i, j, k;
+                       BerVarray new;
 
-static void
-glue_back_sresult (
-       Connection *c,
-       Operation *op,
-       ber_int_t err,
-       const char *matched,
-       const char *text,
-       BVarray refs,
-       LDAPControl **ctrls,
-       int nentries
-)
-{
-       glue_state *gs = op->o_glue;
+                       for (i=0; rs->sr_ref[i].bv_val; i++);
 
-       gs->nentries += nentries;
-       glue_back_response (c, op, 0, 0, err, matched, text, refs,
-                           NULL, NULL, NULL, ctrls);
+                       j = gs->nrefs;
+                       if (!j) {
+                               new = ch_malloc ((i+1)*sizeof(struct berval));
+                       } else {
+                               new = ch_realloc(gs->refs,
+                                       (j+i+1)*sizeof(struct berval));
+                       }
+                       for (k=0; k<i; j++,k++) {
+                               ber_dupbv( &new[j], &rs->sr_ref[k] );
+                       }
+                       new[j].bv_val = NULL;
+                       gs->nrefs = j;
+                       gs->refs = new;
+               }
+       }
+       return 0;
 }
 
 static int
-glue_back_search (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       int scope,
-       int deref,
-       int slimit,
-       int tlimit,
-       Filter *filter,
-       struct berval *filterstr,
-       AttributeName *attrs,
-       int attrsonly
-)
+glue_back_search ( Operation *op, SlapReply *rs )
 {
-       glueinfo *gi = (glueinfo *)b0->be_private;
-       BackendDB *be;
-       int i, rc, t2limit = 0, s2limit = 0;
+       BackendDB *b0 = op->o_bd;
+       BackendDB *b1 = NULL;
+       glueinfo *gi = (glueinfo *) b0->bd_info;
+       int i;
        long stoptime = 0;
-       glue_state gs = {0};
-       struct berval bv;
+       glue_state gs = {0, 0, 0, NULL, 0, NULL};
+       slap_callback cb = { NULL, glue_back_response, NULL, NULL };
+       int scope0, slimit0, tlimit0;
+       struct berval dn, ndn;
 
+       cb.sc_private = &gs;
 
-       if (tlimit) {
-               stoptime = slap_get_time () + tlimit;
-       }
+       cb.sc_next = op->o_callback;
 
-       switch (scope) {
-       case LDAP_SCOPE_BASE:
-               be = glue_back_select (b0, ndn->bv_val);
+       stoptime = slap_get_time () + op->ors_tlimit;
 
-               if (be && be->be_search) {
-                       rc = be->be_search (be, conn, op, dn, ndn, scope,
-                                  deref, slimit, tlimit, filter, filterstr,
-                                           attrs, attrsonly);
+       op->o_bd = glue_back_select (b0, op->o_req_ndn.bv_val);
+
+       switch (op->ors_scope) {
+       case LDAP_SCOPE_BASE:
+               if (op->o_bd && op->o_bd->be_search) {
+                       rs->sr_err = op->o_bd->be_search( op, rs );
                } else {
-                       rc = LDAP_UNWILLING_TO_PERFORM;
-                       send_ldap_result (conn, op, rc, NULL,
-                                     "No search target found", NULL, NULL);
+                       send_ldap_error(op, rs, LDAP_UNWILLING_TO_PERFORM,
+                                     "No search target found");
                }
-               return rc;
+               return rs->sr_err;
 
        case LDAP_SCOPE_ONELEVEL:
        case LDAP_SCOPE_SUBTREE:
-               op->o_glue = &gs;
-               op->o_sresult = glue_back_sresult;
-               op->o_response = glue_back_response;
+#ifdef LDAP_SCOPE_SUBORDINATE
+       case LDAP_SCOPE_SUBORDINATE: /* FIXME */
+#endif
+
+               if ( op->o_sync_mode & SLAP_SYNC_REFRESH ) {
+                       if (op->o_bd && op->o_bd->be_search) {
+                               rs->sr_err = op->o_bd->be_search( op, rs );
+                       } else {
+                               send_ldap_error(op, rs, LDAP_UNWILLING_TO_PERFORM,
+                                             "No search target found");
+                       }
+                       return rs->sr_err;
+               }
+
+               op->o_callback = &cb;
+               rs->sr_err = gs.err = LDAP_UNWILLING_TO_PERFORM;
+               scope0 = op->ors_scope;
+               slimit0 = gs.slimit = op->ors_slimit;
+               tlimit0 = op->ors_tlimit;
+               dn = op->o_req_dn;
+               ndn = op->o_req_ndn;
+               b1 = op->o_bd;
 
                /*
                 * Execute in reverse order, most general first 
@@ -303,316 +311,95 @@ glue_back_search (
                for (i = gi->nodes-1; i >= 0; i--) {
                        if (!gi->n[i].be || !gi->n[i].be->be_search)
                                continue;
-                       if (tlimit) {
-                               t2limit = stoptime - slap_get_time ();
-                               if (t2limit <= 0)
+                       if (!dnIsSuffix(&gi->n[i].be->be_nsuffix[0], &b1->be_nsuffix[0]))
+                               continue;
+                       if (tlimit0 != -1) {
+                               op->ors_tlimit = stoptime - slap_get_time ();
+                               if (op->ors_tlimit <= 0) {
+                                       rs->sr_err = gs.err = LDAP_TIMELIMIT_EXCEEDED;
                                        break;
+                               }
                        }
-                       if (slimit) {
-                               s2limit = slimit - gs.nentries;
-                               if (s2limit <= 0)
+                       if (slimit0 != -1) {
+                               op->ors_slimit = slimit0 - rs->sr_nentries;
+                               if (op->ors_slimit < 0) {
+                                       rs->sr_err = gs.err = LDAP_SIZELIMIT_EXCEEDED;
                                        break;
+                               }
                        }
+                       rs->sr_err = 0;
                        /*
                         * check for abandon 
                         */
-                       ldap_pvt_thread_mutex_lock (&op->o_abandonmutex);
-                       rc = op->o_abandon;
-                       ldap_pvt_thread_mutex_unlock (&op->o_abandonmutex);
-                       if (rc) {
-                               rc = 0;
-                               goto done;
+                       if (op->o_abandon) {
+                               goto end_of_loop;
                        }
-                       be = gi->n[i].be;
-                       if (scope == LDAP_SCOPE_ONELEVEL && 
-                               !strcmp (gi->n[i].pdn, ndn->bv_val)) {
-                               rc = be->be_search (be, conn, op,
-                                       be->be_suffix[0], be->be_nsuffix[0],
-                                       LDAP_SCOPE_BASE, deref,
-                                       s2limit, t2limit, filter, filterstr,
-                                       attrs, attrsonly);
-
-                       } else if (scope == LDAP_SCOPE_SUBTREE &&
-                               dnIsSuffix(be->be_nsuffix[0], ndn)) {
-                               rc = be->be_search (be, conn, op,
-                                       be->be_suffix[0], be->be_nsuffix[0],
-                                       scope, deref,
-                                       s2limit, t2limit, filter, filterstr,
-                                       attrs, attrsonly);
-
-                       } else if (dnIsSuffix(&bv, be->be_nsuffix[0])) {
-                               rc = be->be_search (be, conn, op, dn, ndn,
-                                       scope, deref,
-                                       s2limit, t2limit, filter, filterstr,
-                                       attrs, attrsonly);
+                       op->o_bd = gi->n[i].be;
+
+                       assert( op->o_bd->be_suffix );
+                       assert( op->o_bd->be_nsuffix );
+                       
+                       if (scope0 == LDAP_SCOPE_ONELEVEL && 
+                               dn_match(&gi->n[i].pdn, &ndn))
+                       {
+                               op->ors_scope = LDAP_SCOPE_BASE;
+                               op->o_req_dn = op->o_bd->be_suffix[0];
+                               op->o_req_ndn = op->o_bd->be_nsuffix[0];
+                               rs->sr_err = op->o_bd->be_search(op, rs);
+
+                       } else if (scope0 == LDAP_SCOPE_SUBTREE &&
+                               dnIsSuffix(&op->o_bd->be_nsuffix[0], &ndn))
+                       {
+                               op->o_req_dn = op->o_bd->be_suffix[0];
+                               op->o_req_ndn = op->o_bd->be_nsuffix[0];
+                               rs->sr_err = op->o_bd->be_search( op, rs );
+
+                       } else if (dnIsSuffix(&ndn, &op->o_bd->be_nsuffix[0])) {
+                               rs->sr_err = op->o_bd->be_search( op, rs );
+                       }
+
+                       switch ( gs.err ) {
+
+                       /*
+                        * Add errors that should result in dropping
+                        * the search
+                        */
+                       case LDAP_SIZELIMIT_EXCEEDED:
+                       case LDAP_TIMELIMIT_EXCEEDED:
+                       case LDAP_ADMINLIMIT_EXCEEDED:
+                       case LDAP_NO_SUCH_OBJECT:
+                               goto end_of_loop;
+                       
+                       default:
+                               break;
                        }
                }
+end_of_loop:;
+               op->ors_scope = scope0;
+               op->ors_slimit = slimit0;
+               op->ors_tlimit = tlimit0;
+               op->o_req_dn = dn;
+               op->o_req_ndn = ndn;
+
                break;
        }
-       op->o_sresult = NULL;
-       op->o_response = NULL;
-       op->o_glue = NULL;
+       if ( !op->o_abandon ) {
+               op->o_callback = cb.sc_next;
+               rs->sr_err = gs.err;
+               rs->sr_matched = gs.matched;
+               rs->sr_ref = gs.refs;
 
-       send_search_result (conn, op, gs.err, gs.matched, NULL,
-               gs.refs, NULL, gs.nentries);
+               send_ldap_result( op, rs );
+       }
 
-done:
+       op->o_bd = b0;
        if (gs.matched)
                free (gs.matched);
        if (gs.refs)
-               bvarray_free(gs.refs);
-       return rc;
-}
-
-static int
-glue_back_bind (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       int method,
-       struct berval *cred,
-       struct berval *edn
-)
-{
-       BackendDB *be;
-       int rc;
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_bind) {
-               conn->c_authz_backend = be;
-               rc = be->be_bind (be, conn, op, dn, ndn, method, cred, edn);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL, "No bind target found",
-                                 NULL, NULL);
-       }
-       return rc;
-}
-
-static int
-glue_back_compare (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       AttributeAssertion *ava
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_compare) {
-               rc = be->be_compare (be, conn, op, dn, ndn, ava);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL, "No compare target found",
-                       NULL, NULL);
-       }
-       return rc;
-}
-
-static int
-glue_back_modify (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       Modifications *mod
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_modify) {
-               rc = be->be_modify (be, conn, op, dn, ndn, mod);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL,
-                       "No modify target found", NULL, NULL);
-       }
-       return rc;
-}
-
-static int
-glue_back_modrdn (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       struct berval *newrdn,
-       struct berval *nnewrdn,
-       int del,
-       struct berval *newsup,
-       struct berval *nnewsup
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_modrdn) {
-               rc = be->be_modrdn (be, conn, op, dn, ndn,
-                       newrdn, nnewrdn, del, newsup, nnewsup );
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL,
-                       "No modrdn target found", NULL, NULL);
-       }
-       return rc;
+               ber_bvarray_free(gs.refs);
+       return rs->sr_err;
 }
 
-static int
-glue_back_add (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       Entry *e
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, e->e_ndn);
-
-       if (be && be->be_add) {
-               rc = be->be_add (be, conn, op, e);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL, "No add target found",
-                                 NULL, NULL);
-       }
-       return rc;
-}
-
-static int
-glue_back_delete (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_delete) {
-               rc = be->be_delete (be, conn, op, dn, ndn);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-               send_ldap_result (conn, op, rc, NULL, "No delete target found",
-                                 NULL, NULL);
-       }
-       return rc;
-}
-
-static int
-glue_back_release_rw (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       Entry *e,
-       int rw
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, e->e_ndn);
-
-       if (be && be->be_release) {
-               rc = be->be_release (be, conn, op, e, rw);
-       } else {
-               entry_free (e);
-               rc = 0;
-       }
-       return rc;
-}
-
-static int
-glue_back_group (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       Entry *target,
-       struct berval *ndn,
-       struct berval *ondn,
-       ObjectClass *oc,
-       AttributeDescription * ad
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_group) {
-               rc = be->be_group (be, conn, op, target, ndn, ondn, oc, ad);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-       }
-       return rc;
-}
-
-static int
-glue_back_attribute (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       Entry *target,
-       struct berval *ndn,
-       AttributeDescription *ad,
-       BVarray *vals
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_attribute) {
-               rc = be->be_attribute (be, conn, op, target, ndn, ad, vals);
-       } else {
-               rc = LDAP_UNWILLING_TO_PERFORM;
-       }
-       return rc;
-}
-
-static int
-glue_back_referrals (
-       BackendDB *b0,
-       Connection *conn,
-       Operation *op,
-       struct berval *dn,
-       struct berval *ndn,
-       const char **text
-)
-{
-       BackendDB *be;
-       int rc;
-
-       be = glue_back_select (b0, ndn->bv_val);
-
-       if (be && be->be_chk_referrals) {
-               rc = be->be_chk_referrals (be, conn, op, dn, ndn, text);
-       } else {
-               rc = LDAP_SUCCESS;;
-       }
-       return rc;
-}
 
 static int
 glue_tool_entry_open (
@@ -650,7 +437,7 @@ glue_tool_entry_first (
        BackendDB *b0
 )
 {
-       glueinfo *gi = (glueinfo *) b0->be_private;
+       glueinfo *gi = (glueinfo *) b0->bd_info;
        int i;
 
        /* If we're starting from scratch, start at the most general */
@@ -664,7 +451,8 @@ glue_tool_entry_first (
                }
 
        }
-       if (!glueBack || glueBack->be_entry_open (glueBack, glueMode) != 0)
+       if (!glueBack || !glueBack->be_entry_open || !glueBack->be_entry_first ||
+               glueBack->be_entry_open (glueBack, glueMode) != 0)
                return NOID;
 
        return glueBack->be_entry_first (glueBack);
@@ -675,7 +463,7 @@ glue_tool_entry_next (
        BackendDB *b0
 )
 {
-       glueinfo *gi = (glueinfo *) b0->be_private;
+       glueinfo *gi = (glueinfo *) b0->bd_info;
        int i;
        ID rc;
 
@@ -685,15 +473,16 @@ glue_tool_entry_next (
        rc = glueBack->be_entry_next (glueBack);
 
        /* If we ran out of entries in one database, move on to the next */
-       if (rc == NOID) {
-               glueBack->be_entry_close (glueBack);
+       while (rc == NOID) {
+               if ( glueBack && glueBack->be_entry_close )
+                       glueBack->be_entry_close (glueBack);
                for (i=0; i<gi->nodes; i++) {
                        if (gi->n[i].be == glueBack)
                                break;
                }
                if (i == 0) {
                        glueBack = NULL;
-                       rc = NOID;
+                       break;
                } else {
                        glueBack = gi->n[i-1].be;
                        rc = glue_tool_entry_first (b0);
@@ -717,7 +506,8 @@ glue_tool_entry_get (
 static ID
 glue_tool_entry_put (
        BackendDB *b0,
-       Entry *e
+       Entry *e,
+       struct berval *text
 )
 {
        BackendDB *be;
@@ -742,7 +532,7 @@ glue_tool_entry_put (
                        return NOID;
        }
        glueBack = be;
-       return be->be_entry_put (be, e);
+       return be->be_entry_put (be, e, text);
 }
 
 static int
@@ -762,11 +552,11 @@ glue_tool_sync (
        BackendDB *b0
 )
 {
-       glueinfo *gi = (glueinfo *) b0->be_private;
+       glueinfo *gi = (glueinfo *) b0->bd_info;
        int i;
 
        /* just sync everyone */
-       for (i = 0; b0->be_nsuffix[i]; i++)
+       for (i = 0; i<gi->nodes; i++)
                if (gi->n[i].be->be_sync)
                        gi->n[i].be->be_sync (gi->n[i].be);
        return 0;
@@ -778,31 +568,36 @@ glue_sub_init( )
        int i, j;
        int cont = num_subordinates;
        BackendDB *b1, *be;
-       BackendInfo *bi;
+       BackendInfo *bi = NULL;
        glueinfo *gi;
 
        /* While there are subordinate backends, search backwards through the
         * backends and connect them to their superior.
         */
        for (i = nBackendDB - 1, b1=&backendDB[i]; cont && i>=0; b1--,i--) {
-               if (b1->be_glueflags & SLAP_GLUE_SUBORDINATE) {
+               if (SLAP_GLUE_SUBORDINATE ( b1 ) ) {
                        /* The last database cannot be a subordinate of noone */
-                       if (i == nBackendDB - 1)
-                               b1->be_glueflags ^= SLAP_GLUE_SUBORDINATE;
+                       if (i == nBackendDB - 1) {
+                               SLAP_DBFLAGS(b1) ^= SLAP_DBFLAG_GLUE_SUBORDINATE;
+                       }
                        continue;
                }
                gi = NULL;
                for (j = i-1, be=&backendDB[j]; j>=0; be--,j--) {
-                       if (!(be->be_glueflags & SLAP_GLUE_SUBORDINATE))
+                       if ( ! SLAP_GLUE_SUBORDINATE( be ) ) {
                                continue;
+                       }
                        /* We will only link it once */
-                       if (be->be_glueflags & SLAP_GLUE_LINKED)
+                       if ( SLAP_GLUE_LINKED( be ) ) {
                                continue;
-                       if (!dnIsSuffix(be->be_nsuffix[0],
-                               b1->be_nsuffix[0]))
+                       }
+                       assert( be->be_nsuffix );
+                       assert( b1->be_nsuffix );
+                       if (!dnIsSuffix(&be->be_nsuffix[0], &b1->be_nsuffix[0])) {
                                continue;
+                       }
                        cont--;
-                       be->be_glueflags |= SLAP_GLUE_LINKED;
+                       SLAP_DBFLAGS(be) |= SLAP_DBFLAG_GLUE_LINKED;
                        if (gi == NULL) {
                                /* We create a copy of the superior's be
                                 * structure, pointing to all of its original
@@ -811,31 +606,19 @@ glue_sub_init( )
                                 * is used whenever we have operations to pass
                                 * down to the real database.
                                 */
-                               b1->be_glueflags |= SLAP_GLUE_INSTANCE;
+                               SLAP_DBFLAGS(b1) |= SLAP_DBFLAG_GLUE_INSTANCE;
                                gi = (glueinfo *)ch_malloc(sizeof(glueinfo));
-                               gi->be = (BackendDB *)ch_malloc(sizeof(BackendDB) + sizeof(BackendInfo));
-                               bi = (BackendInfo *)(gi->be+1);
-                               *gi->be = *b1;
                                gi->nodes = 0;
-                               *bi = *b1->bd_info;
+                               gi->bd = *b1;
+                               gi->bi = *b1->bd_info;
+                               bi = (BackendInfo *)gi;
                                bi->bi_open = glue_back_open;
                                bi->bi_close = glue_back_close;
                                bi->bi_db_open = glue_back_db_open;
                                bi->bi_db_close = glue_back_db_close;
                                bi->bi_db_destroy = glue_back_db_destroy;
 
-                               bi->bi_op_bind = glue_back_bind;
                                bi->bi_op_search = glue_back_search;
-                               bi->bi_op_compare = glue_back_compare;
-                               bi->bi_op_modify = glue_back_modify;
-                               bi->bi_op_modrdn = glue_back_modrdn;
-                               bi->bi_op_add = glue_back_add;
-                               bi->bi_op_delete = glue_back_delete;
-
-                               bi->bi_entry_release_rw = glue_back_release_rw;
-                               bi->bi_acl_group = glue_back_group;
-                               bi->bi_acl_attribute = glue_back_attribute;
-                               bi->bi_chk_referrals = glue_back_referrals;
 
                                /*
                                 * hooks for slap tools
@@ -848,26 +631,27 @@ glue_sub_init( )
                                bi->bi_tool_entry_put = glue_tool_entry_put;
                                bi->bi_tool_entry_reindex = glue_tool_entry_reindex;
                                bi->bi_tool_sync = glue_tool_sync;
+                               /* FIXME : will support later */
+                               bi->bi_tool_dn2id_get = 0;
+                               bi->bi_tool_id2entry_get = 0;
+                               bi->bi_tool_entry_modify = 0;
                        } else {
                                gi = (glueinfo *)ch_realloc(gi,
                                        sizeof(glueinfo) +
                                        gi->nodes * sizeof(gluenode));
                        }
                        gi->n[gi->nodes].be = be;
-                       gi->n[gi->nodes].pdn = dn_parent(NULL,
-                               be->be_nsuffix[0]->bv_val);
+                       dnParent( &be->be_nsuffix[0], &gi->n[gi->nodes].pdn ); 
                        gi->nodes++;
                }
                if (gi) {
                        /* One more node for the master */
                        gi = (glueinfo *)ch_realloc(gi,
                                sizeof(glueinfo) + gi->nodes * sizeof(gluenode));
-                       gi->n[gi->nodes].be = gi->be;
-                       gi->n[gi->nodes].pdn = dn_parent(NULL,
-                               b1->be_nsuffix[0]->bv_val);
+                       gi->n[gi->nodes].be = &gi->bd;
+                       dnParent( &b1->be_nsuffix[0], &gi->n[gi->nodes].pdn );
                        gi->nodes++;
-                       b1->be_private = gi;
-                       b1->bd_info = bi;
+                       b1->bd_info = (BackendInfo *)gi;
                }
        }
        /* If there are any unresolved subordinates left, something is wrong */