Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/servers/slapd/frontend.c b/servers/slapd/frontend.c
new file mode 100644
index 0000000..6d42b02
--- /dev/null
+++ b/servers/slapd/frontend.c
@@ -0,0 +1,174 @@
+/* frontend.c - routines for dealing with frontend */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 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 <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+#include <sys/stat.h>
+
+#include "slap.h"
+#include "lutil.h"
+#include "lber_pvt.h"
+
+#include "ldap_rq.h"
+
+static BackendInfo	slap_frontendInfo;
+static BackendDB	slap_frontendDB;
+BackendDB	*frontendDB;
+
+static int
+fe_entry_get_rw(
+	Operation *op,
+	struct berval *ndn,
+	ObjectClass *oc,
+	AttributeDescription *at,
+	int rw,
+	Entry **e )
+{
+	BackendDB	*bd;
+	int		rc = LDAP_NO_SUCH_OBJECT;
+
+	bd = op->o_bd;
+	op->o_bd = select_backend( ndn, 0 );
+	if ( op->o_bd != NULL ) {
+		if ( op->o_bd->be_fetch ) {
+			rc = op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
+		}
+	}
+	op->o_bd = bd;
+
+	return rc;
+}
+
+static int
+fe_entry_release_rw(
+	Operation *op,
+	Entry *e,
+	int rw )
+{
+	BackendDB	*bd;
+	int		rc = LDAP_NO_SUCH_OBJECT;
+
+	bd = op->o_bd;
+	op->o_bd = select_backend( &e->e_nname, 0 );
+	if ( op->o_bd != NULL ) {
+		if ( op->o_bd->be_release ) {
+			rc = op->o_bd->be_release( op, e, rw );
+		}
+	}
+	op->o_bd = bd;
+
+	return rc;
+}
+
+int
+frontend_init( void )
+{
+	/* data */
+	frontendDB = &slap_frontendDB;
+	frontendDB->bd_self = frontendDB;
+
+	/* ACLs */
+	frontendDB->be_dfltaccess = ACL_READ;
+
+	/* limits */
+	frontendDB->be_def_limit.lms_t_soft = SLAPD_DEFAULT_TIMELIMIT;	/* backward compatible limits */
+	frontendDB->be_def_limit.lms_t_hard = 0;
+	frontendDB->be_def_limit.lms_s_soft = SLAPD_DEFAULT_SIZELIMIT;	/* backward compatible limits */
+	frontendDB->be_def_limit.lms_s_hard = 0;
+	frontendDB->be_def_limit.lms_s_unchecked = -1;			/* no limit on unchecked size */
+	frontendDB->be_def_limit.lms_s_pr = 0;				/* page limit */
+	frontendDB->be_def_limit.lms_s_pr_hide = 0;			/* don't hide number of entries left */
+	frontendDB->be_def_limit.lms_s_pr_total = 0;			/* number of total entries returned by pagedResults equal to hard limit */
+
+	ldap_pvt_thread_mutex_init( &frontendDB->be_pcl_mutex );
+
+	/* suffix */
+	frontendDB->be_suffix = ch_calloc( 2, sizeof( struct berval ) );
+	ber_str2bv( "", 0, 1, &frontendDB->be_suffix[0] );
+	BER_BVZERO( &frontendDB->be_suffix[1] );
+	frontendDB->be_nsuffix = ch_calloc( 2, sizeof( struct berval ) );
+	ber_str2bv( "", 0, 1, &frontendDB->be_nsuffix[0] );
+	BER_BVZERO( &frontendDB->be_nsuffix[1] );
+
+	/* info */
+	frontendDB->bd_info = &slap_frontendInfo;
+
+	SLAP_BFLAGS(frontendDB) |= SLAP_BFLAG_FRONTEND;
+
+	/* name */
+	frontendDB->bd_info->bi_type = "frontend";
+
+	/* known controls */
+	{
+		int	i;
+
+		frontendDB->bd_info->bi_controls = slap_known_controls;
+
+		for ( i = 0; slap_known_controls[ i ]; i++ ) {
+			int	cid;
+
+			if ( slap_find_control_id( slap_known_controls[ i ], &cid )
+					== LDAP_CONTROL_NOT_FOUND )
+			{
+				assert( 0 );
+				return -1;
+			}
+
+			frontendDB->bd_info->bi_ctrls[ cid ] = 1;
+			frontendDB->be_ctrls[ cid ] = 1;
+		}
+	}
+
+	/* calls */
+	frontendDB->bd_info->bi_op_abandon = fe_op_abandon;
+	frontendDB->bd_info->bi_op_add = fe_op_add;
+	frontendDB->bd_info->bi_op_bind = fe_op_bind;
+	frontendDB->bd_info->bi_op_compare = fe_op_compare;
+	frontendDB->bd_info->bi_op_delete = fe_op_delete;
+	frontendDB->bd_info->bi_op_modify = fe_op_modify;
+	frontendDB->bd_info->bi_op_modrdn = fe_op_modrdn;
+	frontendDB->bd_info->bi_op_search = fe_op_search;
+	frontendDB->bd_info->bi_extended = fe_extended;
+	frontendDB->bd_info->bi_operational = fe_aux_operational;
+	frontendDB->bd_info->bi_entry_get_rw = fe_entry_get_rw;
+	frontendDB->bd_info->bi_entry_release_rw = fe_entry_release_rw;
+	frontendDB->bd_info->bi_access_allowed = fe_access_allowed;
+	frontendDB->bd_info->bi_acl_group = fe_acl_group;
+	frontendDB->bd_info->bi_acl_attribute = fe_acl_attribute;
+
+#if 0
+	/* FIXME: is this too early? */
+	return backend_startup_one( frontendDB );
+#endif
+
+	return 0;
+}
+