2 * Copyright (c) 1997 - 2001, 2003 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "kadm5_locl.h"
39 * Set the keys of `ent' to the string-to-key of `password'
43 _kadm5_set_keys(kadm5_server_context
*context
,
46 krb5_key_salt_tuple
*ks_tuple
,
53 ret
= hdb_generate_key_set_password(context
->context
,
61 _kadm5_free_keys (context
->context
, ent
->keys
.len
, ent
->keys
.val
);
63 ent
->keys
.len
= num_keys
;
65 hdb_entry_set_pw_change_time(context
->context
, ent
, 0);
67 if (krb5_config_get_bool_default(context
->context
, NULL
, FALSE
,
68 "kadmin", "save-password", NULL
))
70 ret
= hdb_entry_set_password(context
->context
, context
->db
,
80 setup_Key(Key
*k
, Salt
*s
, krb5_key_data
*kd
, size_t kd_offset
)
82 memset(k
, 0, sizeof (*k
)); /* sets mkvno and salt */
83 k
->key
.keytype
= kd
[kd_offset
].key_data_type
[0];
84 k
->key
.keyvalue
.length
= kd
[kd_offset
].key_data_length
[0];
85 k
->key
.keyvalue
.data
= kd
[kd_offset
].key_data_contents
[0];
87 if(kd
[kd_offset
].key_data_ver
== 2) {
88 memset(s
, 0, sizeof (*s
));
89 s
->type
= kd
[kd_offset
].key_data_type
[1];
90 s
->salt
.length
= kd
[kd_offset
].key_data_length
[1];
91 s
->salt
.data
= kd
[kd_offset
].key_data_contents
[1];
97 * Set the keys of `ent' to (`n_key_data', `key_data')
101 _kadm5_set_keys2(kadm5_server_context
*context
,
104 krb5_key_data
*key_data
)
109 HDB_extension
*extp
= NULL
;
110 HDB_Ext_KeySet
*hist_keys
= &ext
.data
.u
.hist_keys
;
117 int replace_hist_keys
= 0;
119 if (n_key_data
== 0) {
120 /* Clear all keys! */
121 ret
= hdb_clear_extension(context
->context
, ent
,
122 choice_HDB_extension_data_hist_keys
);
125 free_Keys(&ent
->keys
);
129 memset(&keys
, 0, sizeof (keys
));
130 memset(&hkset
, 0, sizeof (hkset
)); /* set set_time */
131 memset(&ext
, 0, sizeof (ext
));
132 ext
.data
.element
= choice_HDB_extension_data_hist_keys
;
133 memset(hist_keys
, 0, sizeof (*hist_keys
));
135 for (i
= 0; i
< n_key_data
; i
++) {
136 if (kvno
!= -1 && kvno
!= key_data
[i
].key_data_kvno
) {
140 kvno
= key_data
[i
].key_data_kvno
;
144 * If we're updating KADM5_KEY_DATA with a single keyset then we
145 * assume we must be setting the principal's kvno as well!
147 * Just have to be careful about old clients that might have
148 * sent 0 as the kvno... This may seem ugly, but it's the price
149 * of backwards compatibility with pre-multi-kvno kadmin clients
150 * (besides, who's to say that updating KADM5_KEY_DATA requires
151 * updating the entry's kvno?)
153 * Note that we do nothing special for the case where multiple
154 * keysets are given but the entry's kvno is not set and not in
155 * the given set of keysets. If this happens we'll just update
156 * the key history only and leave the current keyset alone.
159 /* Force kvno to 1 if it was 0; (ank would do this anyways) */
162 /* Below we need key_data[*].kvno to be reasonable */
163 for (i
= 0; i
< n_key_data
; i
++)
164 key_data
[i
].key_data_kvno
= ent
->kvno
;
167 * Or force the entry's kvno to match the one from the new,
174 for (i
= 0; i
< n_key_data
; i
++) {
175 if (key_data
[i
].key_data_kvno
== ent
->kvno
) {
176 /* A current key; add to current key set */
177 setup_Key(&key
, &salt
, key_data
, i
);
178 ret
= add_Keys(&keys
, &key
);
183 * This kvno is historical. Build an hdb_keyset for keys of
184 * this enctype and add them to the new key history.
186 for (k
= 0; k
< hist_keys
->len
; k
++) {
187 if (hist_keys
->val
[k
].kvno
== key_data
[i
].key_data_kvno
)
190 if (hist_keys
->len
> k
&&
191 hist_keys
->val
[k
].kvno
== key_data
[i
].key_data_kvno
)
192 /* We've added all keys of this kvno already (see below) */
195 memset(&hkset
, 0, sizeof (hkset
)); /* set set_time */
196 hkset
.kvno
= key_data
[i
].key_data_kvno
;
197 for (k
= 0; k
< n_key_data
; k
++) {
198 /* Find all keys of this kvno and add them to the new keyset */
199 if (key_data
[k
].key_data_kvno
!= hkset
.kvno
)
202 setup_Key(&key
, &salt
, key_data
, k
);
203 ret
= add_Keys(&hkset
.keys
, &key
);
207 ret
= add_HDB_Ext_KeySet(hist_keys
, &hkset
);
210 replace_hist_keys
= 1;
213 if (replace_hist_keys
)
214 /* No key history given -> leave it alone */
215 extp
= hdb_find_extension(ent
, choice_HDB_extension_data_hist_keys
);
217 HDB_Ext_KeySet
*old_hist_keys
;
220 * Try to keep the very useful set_time values from the old hist
221 * keys. kadm5 loses this info, so this heuristic is the best we
224 old_hist_keys
= &extp
->data
.u
.hist_keys
;
225 for (i
= 0; i
< old_hist_keys
->len
; i
++) {
226 if (old_hist_keys
->val
[i
].set_time
== NULL
)
228 for (k
= 0; k
< hist_keys
->len
; k
++) {
229 if (hist_keys
->val
[k
].kvno
!= old_hist_keys
->val
[k
].kvno
)
231 hist_keys
->val
[k
].set_time
= old_hist_keys
->val
[k
].set_time
;
232 old_hist_keys
->val
[k
].set_time
= NULL
;
237 if (replace_hist_keys
) {
238 /* If hist keys not given in key_data then don't blow away hist_keys */
239 ret
= hdb_replace_extension(context
->context
, ent
, &ext
);
245 * A structure copy is more efficient here than this would be:
247 * copy_Keys(&keys, &ent->keys);
250 * Of course, the above hdb_replace_extension() is not at all efficient...
252 free_Keys(&ent
->keys
);
254 hdb_entry_set_pw_change_time(context
->context
, ent
, 0);
255 hdb_entry_clear_password(context
->context
, ent
);
261 free_hdb_keyset(&hkset
);
262 free_HDB_extension(&ext
);
267 * Set the keys of `ent' to `n_keys, keys'
271 _kadm5_set_keys3(kadm5_server_context
*context
,
274 krb5_keyblock
*keyblocks
)
282 keys
= malloc (len
* sizeof(*keys
));
283 if (keys
== NULL
&& len
!= 0)
286 _kadm5_init_keys (keys
, len
);
288 for(i
= 0; i
< n_keys
; i
++) {
289 keys
[i
].mkvno
= NULL
;
290 ret
= krb5_copy_keyblock_contents (context
->context
,
297 _kadm5_free_keys (context
->context
, ent
->keys
.len
, ent
->keys
.val
);
299 ent
->keys
.val
= keys
;
301 hdb_entry_set_pw_change_time(context
->context
, ent
, 0);
302 hdb_entry_clear_password(context
->context
, ent
);
306 _kadm5_free_keys (context
->context
, len
, keys
);
315 is_des_key_p(int keytype
)
317 return keytype
== ETYPE_DES_CBC_CRC
||
318 keytype
== ETYPE_DES_CBC_MD4
||
319 keytype
== ETYPE_DES_CBC_MD5
;
324 * Set the keys of `ent' to random keys and return them in `n_keys'
329 _kadm5_set_keys_randomly (kadm5_server_context
*context
,
332 krb5_key_salt_tuple
*ks_tuple
,
333 krb5_keyblock
**new_keys
,
336 krb5_keyblock
*kblock
= NULL
;
342 ret
= hdb_generate_key_set(context
->context
, ent
->principal
,
343 ks_tuple
, n_ks_tuple
, &keys
, &num_keys
, 1);
347 kblock
= malloc(num_keys
* sizeof(kblock
[0]));
348 if (kblock
== NULL
) {
350 _kadm5_free_keys (context
->context
, num_keys
, keys
);
353 memset(kblock
, 0, num_keys
* sizeof(kblock
[0]));
356 for (i
= 0; i
< num_keys
; i
++) {
359 * To make sure all des keys are the the same we generate only
360 * the first one and then copy key to all other des keys.
363 if (des_keyblock
!= -1 && is_des_key_p(keys
[i
].key
.keytype
)) {
364 ret
= krb5_copy_keyblock_contents (context
->context
,
365 &kblock
[des_keyblock
],
369 kblock
[i
].keytype
= keys
[i
].key
.keytype
;
371 ret
= krb5_generate_random_keyblock (context
->context
,
377 if (is_des_key_p(keys
[i
].key
.keytype
))
381 ret
= krb5_copy_keyblock_contents (context
->context
,
390 for (i
= 0; i
< num_keys
; ++i
)
391 krb5_free_keyblock_contents (context
->context
, &kblock
[i
]);
393 _kadm5_free_keys (context
->context
, num_keys
, keys
);
397 _kadm5_free_keys (context
->context
, ent
->keys
.len
, ent
->keys
.val
);
398 ent
->keys
.val
= keys
;
399 ent
->keys
.len
= num_keys
;
400 if (n_keys
&& new_keys
) {
405 hdb_entry_set_pw_change_time(context
->context
, ent
, 0);
406 hdb_entry_clear_password(context
->context
, ent
);