1 /* $NetBSD: frontend.c,v 1.3 2021/08/14 16:14:58 christos Exp $ */
2
3 /* frontend.c - routines for dealing with frontend */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1998-2021 The OpenLDAP Foundation.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted only as authorized by the OpenLDAP
12 * Public License.
13 *
14 * A copy of this license is available in the file LICENSE in the
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
17 */
18 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
19 * All rights reserved.
20 *
21 * Redistribution and use in source and binary forms are permitted
22 * provided that this notice is preserved and that due credit is given
23 * to the University of Michigan at Ann Arbor. The name of the University
24 * may not be used to endorse or promote products derived from this
25 * software without specific prior written permission. This software
26 * is provided ``as is'' without express or implied warranty.
27 */
28
29
30 #include <sys/cdefs.h>
31 __RCSID("$NetBSD: frontend.c,v 1.3 2021/08/14 16:14:58 christos Exp $");
32
33 #include "portable.h"
34
35 #include <stdio.h>
36
37 #include <ac/string.h>
38 #include <ac/socket.h>
39 #include <sys/stat.h>
40
41 #include "slap.h"
42 #include "lutil.h"
43 #include "lber_pvt.h"
44
45 #include "ldap_rq.h"
46
47 static BackendInfo slap_frontendInfo;
48 static BackendDB slap_frontendDB;
49 BackendDB *frontendDB;
50
51 static int
fe_entry_get_rw(Operation * op,struct berval * ndn,ObjectClass * oc,AttributeDescription * at,int rw,Entry ** e)52 fe_entry_get_rw(
53 Operation *op,
54 struct berval *ndn,
55 ObjectClass *oc,
56 AttributeDescription *at,
57 int rw,
58 Entry **e )
59 {
60 BackendDB *bd;
61 int rc = LDAP_NO_SUCH_OBJECT;
62
63 bd = op->o_bd;
64 op->o_bd = select_backend( ndn, 0 );
65 if ( op->o_bd != NULL ) {
66 if ( op->o_bd->be_fetch ) {
67 rc = op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
68 }
69 }
70 op->o_bd = bd;
71
72 return rc;
73 }
74
75 static int
fe_entry_release_rw(Operation * op,Entry * e,int rw)76 fe_entry_release_rw(
77 Operation *op,
78 Entry *e,
79 int rw )
80 {
81 BackendDB *bd;
82 int rc = LDAP_NO_SUCH_OBJECT;
83
84 bd = op->o_bd;
85 op->o_bd = select_backend( &e->e_nname, 0 );
86 if ( op->o_bd != NULL ) {
87 if ( op->o_bd->be_release ) {
88 rc = op->o_bd->be_release( op, e, rw );
89 }
90 }
91 op->o_bd = bd;
92
93 return rc;
94 }
95
96 int
frontend_init(void)97 frontend_init( void )
98 {
99 /* data */
100 frontendDB = &slap_frontendDB;
101 frontendDB->bd_self = frontendDB;
102
103 /* ACLs */
104 frontendDB->be_dfltaccess = ACL_READ;
105
106 /* limits */
107 frontendDB->be_def_limit.lms_t_soft = SLAPD_DEFAULT_TIMELIMIT; /* backward compatible limits */
108 frontendDB->be_def_limit.lms_t_hard = 0;
109 frontendDB->be_def_limit.lms_s_soft = SLAPD_DEFAULT_SIZELIMIT; /* backward compatible limits */
110 frontendDB->be_def_limit.lms_s_hard = 0;
111 frontendDB->be_def_limit.lms_s_unchecked = -1; /* no limit on unchecked size */
112 frontendDB->be_def_limit.lms_s_pr = 0; /* page limit */
113 frontendDB->be_def_limit.lms_s_pr_hide = 0; /* don't hide number of entries left */
114 frontendDB->be_def_limit.lms_s_pr_total = 0; /* number of total entries returned by pagedResults equal to hard limit */
115
116 ldap_pvt_thread_mutex_init( &frontendDB->be_pcl_mutex );
117
118 /* suffix */
119 frontendDB->be_suffix = ch_calloc( 2, sizeof( struct berval ) );
120 ber_str2bv( "", 0, 1, &frontendDB->be_suffix[0] );
121 BER_BVZERO( &frontendDB->be_suffix[1] );
122 frontendDB->be_nsuffix = ch_calloc( 2, sizeof( struct berval ) );
123 ber_str2bv( "", 0, 1, &frontendDB->be_nsuffix[0] );
124 BER_BVZERO( &frontendDB->be_nsuffix[1] );
125
126 /* info */
127 frontendDB->bd_info = &slap_frontendInfo;
128
129 SLAP_BFLAGS(frontendDB) |= SLAP_BFLAG_FRONTEND;
130
131 /* name */
132 frontendDB->bd_info->bi_type = "frontend";
133
134 /* known controls */
135 {
136 int i;
137
138 frontendDB->bd_info->bi_controls = slap_known_controls;
139
140 for ( i = 0; slap_known_controls[ i ]; i++ ) {
141 int cid;
142
143 if ( slap_find_control_id( slap_known_controls[ i ], &cid )
144 == LDAP_CONTROL_NOT_FOUND )
145 {
146 assert( 0 );
147 return -1;
148 }
149
150 frontendDB->bd_info->bi_ctrls[ cid ] = 1;
151 frontendDB->be_ctrls[ cid ] = 1;
152 }
153 }
154
155 /* calls */
156 frontendDB->bd_info->bi_op_abandon = fe_op_abandon;
157 frontendDB->bd_info->bi_op_add = fe_op_add;
158 frontendDB->bd_info->bi_op_bind = fe_op_bind;
159 frontendDB->bd_info->bi_op_compare = fe_op_compare;
160 frontendDB->bd_info->bi_op_delete = fe_op_delete;
161 frontendDB->bd_info->bi_op_modify = fe_op_modify;
162 frontendDB->bd_info->bi_op_modrdn = fe_op_modrdn;
163 frontendDB->bd_info->bi_op_search = fe_op_search;
164 frontendDB->bd_info->bi_extended = fe_extended;
165 frontendDB->bd_info->bi_operational = fe_aux_operational;
166 frontendDB->bd_info->bi_entry_get_rw = fe_entry_get_rw;
167 frontendDB->bd_info->bi_entry_release_rw = fe_entry_release_rw;
168 frontendDB->bd_info->bi_access_allowed = fe_access_allowed;
169 frontendDB->bd_info->bi_acl_group = fe_acl_group;
170 frontendDB->bd_info->bi_acl_attribute = fe_acl_attribute;
171
172 #if 0
173 /* FIXME: is this too early? */
174 return backend_startup_one( frontendDB );
175 #endif
176
177 return 0;
178 }
179
180