source: trunk/server/source4/kdc/hdb-samba4.c

Last change on this file was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 7.7 KB
Line 
1/*
2 * Copyright (c) 1999-2001, 2003, PADL Software Pty Ltd.
3 * Copyright (c) 2004-2009, Andrew Bartlett <abartlet@samba.org>.
4 * Copyright (c) 2004, Stefan Metzmacher <metze@samba.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * 3. Neither the name of PADL Software nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include "includes.h"
36#include "kdc/kdc-glue.h"
37#include "kdc/db-glue.h"
38
39static krb5_error_code hdb_samba4_open(krb5_context context, HDB *db, int flags, mode_t mode)
40{
41 if (db->hdb_master_key_set) {
42 krb5_error_code ret = HDB_ERR_NOENTRY;
43 krb5_warnx(context, "hdb_samba4_open: use of a master key incompatible with LDB\n");
44 krb5_set_error_message(context, ret, "hdb_samba4_open: use of a master key incompatible with LDB\n");
45 return ret;
46 }
47
48 return 0;
49}
50
51static krb5_error_code hdb_samba4_close(krb5_context context, HDB *db)
52{
53 return 0;
54}
55
56static krb5_error_code hdb_samba4_lock(krb5_context context, HDB *db, int operation)
57{
58 return 0;
59}
60
61static krb5_error_code hdb_samba4_unlock(krb5_context context, HDB *db)
62{
63 return 0;
64}
65
66static krb5_error_code hdb_samba4_rename(krb5_context context, HDB *db, const char *new_name)
67{
68 return HDB_ERR_DB_INUSE;
69}
70
71static krb5_error_code hdb_samba4_store(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
72{
73 return HDB_ERR_DB_INUSE;
74}
75
76static krb5_error_code hdb_samba4_remove(krb5_context context, HDB *db, krb5_const_principal principal)
77{
78 return HDB_ERR_DB_INUSE;
79}
80
81static krb5_error_code hdb_samba4_fetch_kvno(krb5_context context, HDB *db,
82 krb5_const_principal principal,
83 unsigned flags,
84 krb5_kvno kvno,
85 hdb_entry_ex *entry_ex)
86{
87 struct samba_kdc_db_context *kdc_db_ctx;
88
89 kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
90 struct samba_kdc_db_context);
91
92 return samba_kdc_fetch(context, kdc_db_ctx, principal, flags, kvno, entry_ex);
93}
94
95static krb5_error_code hdb_samba4_firstkey(krb5_context context, HDB *db, unsigned flags,
96 hdb_entry_ex *entry)
97{
98 struct samba_kdc_db_context *kdc_db_ctx;
99
100 kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
101 struct samba_kdc_db_context);
102
103 return samba_kdc_firstkey(context, kdc_db_ctx, entry);
104}
105
106static krb5_error_code hdb_samba4_nextkey(krb5_context context, HDB *db, unsigned flags,
107 hdb_entry_ex *entry)
108{
109 struct samba_kdc_db_context *kdc_db_ctx;
110
111 kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
112 struct samba_kdc_db_context);
113
114 return samba_kdc_nextkey(context, kdc_db_ctx, entry);
115}
116
117static krb5_error_code hdb_samba4_destroy(krb5_context context, HDB *db)
118{
119 talloc_free(db);
120 return 0;
121}
122
123static krb5_error_code
124hdb_samba4_check_identical_client_and_server(krb5_context context, HDB *db,
125 hdb_entry_ex *entry,
126 krb5_const_principal target_principal)
127{
128 struct samba_kdc_db_context *kdc_db_ctx;
129
130 kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
131 struct samba_kdc_db_context);
132
133 return samba_kdc_check_identical_client_and_server(context, kdc_db_ctx,
134 entry,
135 target_principal);
136}
137
138static krb5_error_code
139hdb_samba4_check_pkinit_ms_upn_match(krb5_context context, HDB *db,
140 hdb_entry_ex *entry,
141 krb5_const_principal certificate_principal)
142{
143 struct samba_kdc_db_context *kdc_db_ctx;
144
145 kdc_db_ctx = talloc_get_type_abort(db->hdb_db,
146 struct samba_kdc_db_context);
147
148 return samba_kdc_check_pkinit_ms_upn_match(context, kdc_db_ctx,
149 entry,
150 certificate_principal);
151}
152
153/* This interface is to be called by the KDC and libnet_keytab_dump,
154 * which is expecting Samba calling conventions.
155 * It is also called by a wrapper (hdb_samba4_create) from the
156 * kpasswdd -> krb5 -> keytab_hdb -> hdb code */
157
158NTSTATUS hdb_samba4_create_kdc(struct samba_kdc_base_context *base_ctx,
159 krb5_context context, struct HDB **db)
160{
161 struct samba_kdc_db_context *kdc_db_ctx;
162 NTSTATUS nt_status;
163
164 *db = talloc(base_ctx, HDB);
165 if (!*db) {
166 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
167 return NT_STATUS_NO_MEMORY;
168 }
169
170 (*db)->hdb_master_key_set = 0;
171 (*db)->hdb_db = NULL;
172 (*db)->hdb_capability_flags = 0;
173
174 nt_status = samba_kdc_setup_db_ctx(*db, base_ctx, &kdc_db_ctx);
175 if (!NT_STATUS_IS_OK(nt_status)) {
176 talloc_free(*db);
177 return nt_status;
178 }
179 (*db)->hdb_db = kdc_db_ctx;
180
181 (*db)->hdb_dbc = NULL;
182 (*db)->hdb_open = hdb_samba4_open;
183 (*db)->hdb_close = hdb_samba4_close;
184 (*db)->hdb_fetch_kvno = hdb_samba4_fetch_kvno;
185 (*db)->hdb_store = hdb_samba4_store;
186 (*db)->hdb_remove = hdb_samba4_remove;
187 (*db)->hdb_firstkey = hdb_samba4_firstkey;
188 (*db)->hdb_nextkey = hdb_samba4_nextkey;
189 (*db)->hdb_lock = hdb_samba4_lock;
190 (*db)->hdb_unlock = hdb_samba4_unlock;
191 (*db)->hdb_rename = hdb_samba4_rename;
192 /* we don't implement these, as we are not a lockable database */
193 (*db)->hdb__get = NULL;
194 (*db)->hdb__put = NULL;
195 /* kadmin should not be used for deletes - use other tools instead */
196 (*db)->hdb__del = NULL;
197 (*db)->hdb_destroy = hdb_samba4_destroy;
198
199 (*db)->hdb_auth_status = NULL;
200 (*db)->hdb_check_constrained_delegation = hdb_samba4_check_identical_client_and_server;
201 (*db)->hdb_check_pkinit_ms_upn_match = hdb_samba4_check_pkinit_ms_upn_match;
202 (*db)->hdb_check_s4u2self = hdb_samba4_check_identical_client_and_server;
203
204 return NT_STATUS_OK;
205}
206
207static krb5_error_code hdb_samba4_create(krb5_context context, struct HDB **db, const char *arg)
208{
209 NTSTATUS nt_status;
210 void *ptr;
211 struct samba_kdc_base_context *base_ctx;
212
213 if (sscanf(arg, "&%p", &ptr) != 1) {
214 return EINVAL;
215 }
216 base_ctx = talloc_get_type_abort(ptr, struct samba_kdc_base_context);
217 /* The global kdc_mem_ctx and kdc_lp_ctx, Disgusting, ugly hack, but it means one less private hook */
218 nt_status = hdb_samba4_create_kdc(base_ctx, context, db);
219
220 if (NT_STATUS_IS_OK(nt_status)) {
221 return 0;
222 }
223 return EINVAL;
224}
225
226/* Only used in the hdb-backed keytab code
227 * for a keytab of 'samba4&<address>', to find
228 * kpasswd's key in the main DB, and to
229 * copy all the keys into a file (libnet_keytab_export)
230 *
231 * The <address> is the string form of a pointer to a talloced struct hdb_samba_context
232 */
233struct hdb_method hdb_samba4 = {
234 .interface_version = HDB_INTERFACE_VERSION,
235 .prefix = "samba4",
236 .create = hdb_samba4_create
237};
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