1 /* $NetBSD: dn2entry.c,v 1.2 2021/08/14 16:15:02 christos Exp $ */
2
3 /* OpenLDAP WiredTiger backend */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2002-2021 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 /* ACKNOWLEDGEMENTS:
19 * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
20 * based on back-bdb for inclusion in OpenLDAP Software.
21 * WiredTiger is a product of MongoDB Inc.
22 */
23
24 #include <sys/cdefs.h>
25 __RCSID("$NetBSD: dn2entry.c,v 1.2 2021/08/14 16:15:02 christos Exp $");
26
27 #include "portable.h"
28
29 #include <stdio.h>
30 #include <ac/string.h>
31 #include "back-wt.h"
32 #include "slap-config.h"
33
34 /*
35 * dn2entry - look up dn in the db and return the corresponding entry.
36 * No longer return closest ancestor, see wt_dn2pentry().
37 */
wt_dn2entry(BackendDB * be,wt_ctx * wc,struct berval * ndn,Entry ** ep)38 int wt_dn2entry( BackendDB *be,
39 wt_ctx *wc,
40 struct berval *ndn,
41 Entry **ep ){
42 uint64_t id;
43 WT_CURSOR *cursor = NULL;
44 WT_ITEM item;
45 EntryHeader eh;
46 int rc;
47 int eoff;
48 Entry *e = NULL;
49 WT_SESSION *session = wc->session;
50
51 if( ndn->bv_len == 0 ){
52 /* parent of root dn */
53 return WT_NOTFOUND;
54 }
55
56 rc = session->open_cursor(session,
57 WT_INDEX_DN"(id, entry)",
58 NULL, NULL, &cursor);
59 if ( rc ) {
60 Debug( LDAP_DEBUG_ANY,
61 LDAP_XSTRING(wt_dn2entry)
62 ": open_cursor failed: %s (%d)\n",
63 wiredtiger_strerror(rc), rc );
64 goto done;
65 }
66
67 cursor->set_key(cursor, ndn->bv_val);
68 rc = cursor->search(cursor);
69 switch( rc ){
70 case 0:
71 break;
72 case WT_NOTFOUND:
73 goto done;
74 default:
75 Debug( LDAP_DEBUG_ANY,
76 LDAP_XSTRING(wt_dn2entry)
77 ": search failed: %s (%d)\n",
78 wiredtiger_strerror(rc), rc );
79 goto done;
80 }
81 cursor->get_value(cursor, &id, &item);
82 rc = wt_entry_header( &item, &eh );
83
84 eoff = eh.data - (char *)item.data;
85 eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + item.size;
86 eh.bv.bv_val = ch_malloc( eh.bv.bv_len );
87 memset(eh.bv.bv_val, 0xff, eh.bv.bv_len);
88 eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
89 memcpy(eh.data, item.data, item.size);
90 eh.data += eoff;
91 rc = entry_decode( &eh, &e );
92 if ( rc ) {
93 Debug( LDAP_DEBUG_ANY,
94 LDAP_XSTRING(wt_dn2entry)
95 ": entry decode error: %d\n",
96 rc );
97 goto done;
98 }
99
100 e->e_id = id;
101 *ep = e;
102
103 done:
104 if(cursor){
105 cursor->close(cursor);
106 }
107 return rc;
108 }
109
110 /* dn2pentry - return parent entry */
wt_dn2pentry(BackendDB * be,wt_ctx * wc,struct berval * ndn,Entry ** ep)111 int wt_dn2pentry( BackendDB *be,
112 wt_ctx *wc,
113 struct berval *ndn,
114 Entry **ep ){
115 Entry *e = NULL;
116 struct berval pdn;
117 int rc;
118
119 if (be_issuffix( be, ndn )) {
120 *ep = NULL;
121 return WT_NOTFOUND;
122 }
123
124 dnParent( ndn, &pdn );
125 rc = wt_dn2entry(be, wc, &pdn, &e);
126 *ep = e;
127 return rc;
128 }
129
130 /*
131 * Local variables:
132 * indent-tabs-mode: t
133 * tab-width: 4
134 * c-basic-offset: 4
135 * End:
136 */
137