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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_with_ks_tuple(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.mandatory = FALSE;
133 ext.data.element = choice_HDB_extension_data_hist_keys;
134 memset(hist_keys, 0, sizeof (*hist_keys));
136 for (i = 0; i < n_key_data; i++) {
137 if (kvno != -1 && kvno != key_data[i].key_data_kvno) {
141 kvno = key_data[i].key_data_kvno;
145 * If we're updating KADM5_KEY_DATA with a single keyset then we
146 * assume we must be setting the principal's kvno as well!
148 * Just have to be careful about old clients that might have
149 * sent 0 as the kvno... This may seem ugly, but it's the price
150 * of backwards compatibility with pre-multi-kvno kadmin clients
151 * (besides, who's to say that updating KADM5_KEY_DATA requires
152 * updating the entry's kvno?)
154 * Note that we do nothing special for the case where multiple
155 * keysets are given but the entry's kvno is not set and not in
156 * the given set of keysets. If this happens we'll just update
157 * the key history only and leave the current keyset alone.
160 /* Force kvno to 1 if it was 0; (ank would do this anyways) */
163 /* Below we need key_data[*].kvno to be reasonable */
164 for (i = 0; i < n_key_data; i++)
165 key_data[i].key_data_kvno = ent->kvno;
168 * Or force the entry's kvno to match the one from the new,
175 for (i = 0; i < n_key_data; i++) {
176 if (key_data[i].key_data_kvno == ent->kvno) {
177 /* A current key; add to current key set */
178 setup_Key(&key, &salt, key_data, i);
179 ret = add_Keys(&keys, &key);
184 * This kvno is historical. Build an hdb_keyset for keys of
185 * this enctype and add them to the new key history.
187 for (k = 0; k < hist_keys->len; k++) {
188 if (hist_keys->val[k].kvno == key_data[i].key_data_kvno)
191 if (hist_keys->len > k &&
192 hist_keys->val[k].kvno == key_data[i].key_data_kvno)
193 /* We've added all keys of this kvno already (see below) */
196 memset(&hkset, 0, sizeof (hkset)); /* set set_time */
197 hkset.kvno = key_data[i].key_data_kvno;
198 for (k = 0; k < n_key_data; k++) {
199 /* Find all keys of this kvno and add them to the new keyset */
200 if (key_data[k].key_data_kvno != hkset.kvno)
203 setup_Key(&key, &salt, key_data, k);
204 ret = add_Keys(&hkset.keys, &key);
206 free_hdb_keyset(&hkset);
210 ret = add_HDB_Ext_KeySet(hist_keys, &hkset);
211 free_hdb_keyset(&hkset);
214 replace_hist_keys = 1;
217 if (replace_hist_keys)
218 /* No key history given -> leave it alone */
219 extp = hdb_find_extension(ent, choice_HDB_extension_data_hist_keys);
221 HDB_Ext_KeySet *old_hist_keys;
224 * Try to keep the very useful set_time values from the old hist
225 * keys. kadm5 loses this info, so this heuristic is the best we
228 old_hist_keys = &extp->data.u.hist_keys;
229 for (i = 0; i < old_hist_keys->len; i++) {
230 if (old_hist_keys->val[i].set_time == NULL)
232 for (k = 0; k < hist_keys->len; k++) {
233 if (hist_keys->val[k].kvno != old_hist_keys->val[k].kvno)
235 hist_keys->val[k].set_time = old_hist_keys->val[k].set_time;
236 old_hist_keys->val[k].set_time = NULL;
241 if (replace_hist_keys) {
242 /* If hist keys not given in key_data then don't blow away hist_keys */
243 ret = hdb_replace_extension(context->context, ent, &ext);
249 * A structure copy is more efficient here than this would be:
251 * copy_Keys(&keys, &ent->keys);
254 * Of course, the above hdb_replace_extension() is not at all efficient...
256 free_HDB_extension(&ext);
257 free_Keys(&ent->keys);
258 free_hdb_keyset(&hkset);
260 hdb_entry_set_pw_change_time(context->context, ent, 0);
261 hdb_entry_clear_password(context->context, ent);
267 free_HDB_extension(&ext);
272 * Set the keys of `ent' to `n_keys, keys'
276 _kadm5_set_keys3(kadm5_server_context *context,
279 krb5_keyblock *keyblocks)
287 keys = malloc (len * sizeof(*keys));
288 if (keys == NULL && len != 0)
289 return krb5_enomem(context->context);
291 _kadm5_init_keys (keys, len);
293 for(i = 0; i < n_keys; i++) {
294 keys[i].mkvno = NULL;
295 ret = krb5_copy_keyblock_contents (context->context,
302 _kadm5_free_keys (context->context, ent->keys.len, ent->keys.val);
304 ent->keys.val = keys;
306 hdb_entry_set_pw_change_time(context->context, ent, 0);
307 hdb_entry_clear_password(context->context, ent);
311 _kadm5_free_keys (context->context, len, keys);
320 is_des_key_p(int keytype)
322 return keytype == ETYPE_DES_CBC_CRC ||
323 keytype == ETYPE_DES_CBC_MD4 ||
324 keytype == ETYPE_DES_CBC_MD5;
329 * Set the keys of `ent' to random keys and return them in `n_keys'
334 _kadm5_set_keys_randomly (kadm5_server_context *context,
337 krb5_key_salt_tuple *ks_tuple,
338 krb5_keyblock **new_keys,
341 krb5_keyblock *kblock = NULL;
347 ret = hdb_generate_key_set(context->context, ent->principal,
348 ks_tuple, n_ks_tuple, &keys, &num_keys, 1);
352 kblock = malloc(num_keys * sizeof(kblock[0]));
353 if (kblock == NULL) {
354 ret = krb5_enomem(context->context);
355 _kadm5_free_keys (context->context, num_keys, keys);
358 memset(kblock, 0, num_keys * sizeof(kblock[0]));
361 for (i = 0; i < num_keys; i++) {
364 * To make sure all des keys are the the same we generate only
365 * the first one and then copy key to all other des keys.
368 if (des_keyblock != -1 && is_des_key_p(keys[i].key.keytype)) {
369 ret = krb5_copy_keyblock_contents (context->context,
370 &kblock[des_keyblock],
374 kblock[i].keytype = keys[i].key.keytype;
376 ret = krb5_generate_random_keyblock (context->context,
382 if (is_des_key_p(keys[i].key.keytype))
386 ret = krb5_copy_keyblock_contents (context->context,
395 for (i = 0; i < num_keys; ++i)
396 krb5_free_keyblock_contents(context->context, &kblock[i]);
398 _kadm5_free_keys(context->context, num_keys, keys);
402 _kadm5_free_keys(context->context, ent->keys.len, ent->keys.val);
403 ent->keys.val = keys;
404 ent->keys.len = num_keys;
405 if (n_keys && new_keys) {
409 for (i = 0; i < num_keys; ++i)
410 krb5_free_keyblock_contents(context->context, &kblock[i]);
414 hdb_entry_set_pw_change_time(context->context, ent, 0);
415 hdb_entry_clear_password(context->context, ent);