1/* frontend.c - routines for dealing with frontend */
2/* $OpenLDAP$ */
3/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 1998-2011 The OpenLDAP Foundation.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
10 * Public License.
11 *
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
15 */
16/* Portions Copyright (c) 1995 Regents of the University of Michigan.
17 * All rights reserved.
18 *
19 * Redistribution and use in source and binary forms are permitted
20 * provided that this notice is preserved and that due credit is given
21 * to the University of Michigan at Ann Arbor. The name of the University
22 * may not be used to endorse or promote products derived from this
23 * software without specific prior written permission. This software
24 * is provided ``as is'' without express or implied warranty.
25 */
26
27
28#include "portable.h"
29
30#include <stdio.h>
31
32#include <ac/string.h>
33#include <ac/socket.h>
34#include <sys/stat.h>
35
36#include "slap.h"
37#include "lutil.h"
38#include "lber_pvt.h"
39
40#include "ldap_rq.h"
41
42static BackendInfo	slap_frontendInfo;
43static BackendDB	slap_frontendDB;
44BackendDB	*frontendDB;
45
46static int
47fe_entry_get_rw(
48	Operation *op,
49	struct berval *ndn,
50	ObjectClass *oc,
51	AttributeDescription *at,
52	int rw,
53	Entry **e )
54{
55	BackendDB	*bd;
56	int		rc = LDAP_NO_SUCH_OBJECT;
57
58	bd = op->o_bd;
59	op->o_bd = select_backend( ndn, 0 );
60	if ( op->o_bd != NULL ) {
61		if ( op->o_bd->be_fetch ) {
62			rc = op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
63		}
64	}
65	op->o_bd = bd;
66
67	return rc;
68}
69
70static int
71fe_entry_release_rw(
72	Operation *op,
73	Entry *e,
74	int rw )
75{
76	BackendDB	*bd;
77	int		rc = LDAP_NO_SUCH_OBJECT;
78
79	bd = op->o_bd;
80	op->o_bd = select_backend( &e->e_nname, 0 );
81	if ( op->o_bd != NULL ) {
82		if ( op->o_bd->be_release ) {
83			rc = op->o_bd->be_release( op, e, rw );
84		}
85	}
86	op->o_bd = bd;
87
88	return rc;
89}
90
91int
92frontend_init( void )
93{
94	/* data */
95	frontendDB = &slap_frontendDB;
96	frontendDB->bd_self = frontendDB;
97
98	/* ACLs */
99	frontendDB->be_dfltaccess = ACL_READ;
100
101	/* limits */
102	frontendDB->be_def_limit.lms_t_soft = SLAPD_DEFAULT_TIMELIMIT;	/* backward compatible limits */
103	frontendDB->be_def_limit.lms_t_hard = 0;
104	frontendDB->be_def_limit.lms_s_soft = SLAPD_DEFAULT_SIZELIMIT;	/* backward compatible limits */
105	frontendDB->be_def_limit.lms_s_hard = 0;
106	frontendDB->be_def_limit.lms_s_unchecked = -1;			/* no limit on unchecked size */
107	frontendDB->be_def_limit.lms_s_pr = 0;				/* page limit */
108	frontendDB->be_def_limit.lms_s_pr_hide = 0;			/* don't hide number of entries left */
109	frontendDB->be_def_limit.lms_s_pr_total = 0;			/* number of total entries returned by pagedResults equal to hard limit */
110
111	ldap_pvt_thread_mutex_init( &frontendDB->be_pcl_mutex );
112
113	/* suffix */
114	frontendDB->be_suffix = ch_calloc( 2, sizeof( struct berval ) );
115	ber_str2bv( "", 0, 1, &frontendDB->be_suffix[0] );
116	BER_BVZERO( &frontendDB->be_suffix[1] );
117	frontendDB->be_nsuffix = ch_calloc( 2, sizeof( struct berval ) );
118	ber_str2bv( "", 0, 1, &frontendDB->be_nsuffix[0] );
119	BER_BVZERO( &frontendDB->be_nsuffix[1] );
120
121	/* info */
122	frontendDB->bd_info = &slap_frontendInfo;
123
124	SLAP_BFLAGS(frontendDB) |= SLAP_BFLAG_FRONTEND;
125
126	/* name */
127	frontendDB->bd_info->bi_type = "frontend";
128
129	/* known controls */
130	{
131		int	i;
132
133		frontendDB->bd_info->bi_controls = slap_known_controls;
134
135		for ( i = 0; slap_known_controls[ i ]; i++ ) {
136			int	cid;
137
138			if ( slap_find_control_id( slap_known_controls[ i ], &cid )
139					== LDAP_CONTROL_NOT_FOUND )
140			{
141				assert( 0 );
142				return -1;
143			}
144
145			frontendDB->bd_info->bi_ctrls[ cid ] = 1;
146			frontendDB->be_ctrls[ cid ] = 1;
147		}
148	}
149
150	/* calls */
151	frontendDB->bd_info->bi_op_abandon = fe_op_abandon;
152	frontendDB->bd_info->bi_op_add = fe_op_add;
153	frontendDB->bd_info->bi_op_bind = fe_op_bind;
154	frontendDB->bd_info->bi_op_compare = fe_op_compare;
155	frontendDB->bd_info->bi_op_delete = fe_op_delete;
156	frontendDB->bd_info->bi_op_modify = fe_op_modify;
157	frontendDB->bd_info->bi_op_modrdn = fe_op_modrdn;
158	frontendDB->bd_info->bi_op_search = fe_op_search;
159	frontendDB->bd_info->bi_extended = fe_extended;
160	frontendDB->bd_info->bi_operational = fe_aux_operational;
161	frontendDB->bd_info->bi_entry_get_rw = fe_entry_get_rw;
162	frontendDB->bd_info->bi_entry_release_rw = fe_entry_release_rw;
163	frontendDB->bd_info->bi_access_allowed = fe_access_allowed;
164	frontendDB->bd_info->bi_acl_group = fe_acl_group;
165	frontendDB->bd_info->bi_acl_attribute = fe_acl_attribute;
166
167#if 0
168	/* FIXME: is this too early? */
169	return backend_startup_one( frontendDB );
170#endif
171
172	return 0;
173}
174
175