2 * Copyright (c) 2004 - 2005 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
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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
40 hdb_entry_check_mandatory(krb5_context context, const hdb_entry *ent)
44 if (ent->extensions == NULL)
48 * check for unknown extensions and if they where tagged mandatory
51 for (i = 0; i < ent->extensions->len; i++) {
52 if (ent->extensions->val[i].data.element !=
53 choice_HDB_extension_data_asn1_ellipsis)
55 if (ent->extensions->val[i].mandatory) {
56 krb5_set_error_message(context, HDB_ERR_MANDATORY_OPTION,
57 "Principal have unknown "
58 "mandatory extension");
59 return HDB_ERR_MANDATORY_OPTION;
66 hdb_find_extension(const hdb_entry *entry, int type)
70 if (entry->extensions == NULL)
73 for (i = 0; i < entry->extensions->len; i++)
74 if (entry->extensions->val[i].data.element == type)
75 return &entry->extensions->val[i];
80 * Replace the extension `ext' in `entry'. Make a copy of the
81 * extension, so the caller must still free `ext' on both success and
82 * failure. Returns 0 or error code.
86 hdb_replace_extension(krb5_context context,
88 const HDB_extension *ext)
96 if (entry->extensions == NULL) {
97 entry->extensions = calloc(1, sizeof(*entry->extensions));
98 if (entry->extensions == NULL) {
99 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
102 } else if (ext->data.element != choice_HDB_extension_data_asn1_ellipsis) {
103 ext2 = hdb_find_extension(entry, ext->data.element);
106 * This is an unknown extention, and we are asked to replace a
107 * possible entry in `entry' that is of the same type. This
108 * might seem impossible, but ASN.1 CHOICE comes to our
109 * rescue. The first tag in each branch in the CHOICE is
110 * unique, so just find the element in the list that have the
111 * same tag was we are putting into the list.
113 Der_class replace_class, list_class;
114 Der_type replace_type, list_type;
115 unsigned int replace_tag, list_tag;
119 ret = der_get_tag(ext->data.u.asn1_ellipsis.data,
120 ext->data.u.asn1_ellipsis.length,
121 &replace_class, &replace_type, &replace_tag,
124 krb5_set_error_message(context, ret, "hdb: failed to decode "
125 "replacement hdb extention");
129 for (i = 0; i < entry->extensions->len; i++) {
130 HDB_extension *ext3 = &entry->extensions->val[i];
132 if (ext3->data.element != choice_HDB_extension_data_asn1_ellipsis)
135 ret = der_get_tag(ext3->data.u.asn1_ellipsis.data,
136 ext3->data.u.asn1_ellipsis.length,
137 &list_class, &list_type, &list_tag,
140 krb5_set_error_message(context, ret, "hdb: failed to decode "
141 "present hdb extention");
145 if (MAKE_TAG(replace_class,replace_type,replace_type) ==
146 MAKE_TAG(list_class,list_type,list_type)) {
154 free_HDB_extension(ext2);
155 ret = copy_HDB_extension(ext, ext2);
157 krb5_set_error_message(context, ret, "hdb: failed to copy replacement "
162 es = realloc(entry->extensions->val,
163 (entry->extensions->len+1)*sizeof(entry->extensions->val[0]));
165 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
168 entry->extensions->val = es;
170 ret = copy_HDB_extension(ext,
171 &entry->extensions->val[entry->extensions->len]);
173 entry->extensions->len++;
175 krb5_set_error_message(context, ret, "hdb: failed to copy new extension");
181 hdb_clear_extension(krb5_context context,
187 if (entry->extensions == NULL)
190 for (i = 0; i < entry->extensions->len; i++) {
191 if (entry->extensions->val[i].data.element == type) {
192 free_HDB_extension(&entry->extensions->val[i]);
193 memmove(&entry->extensions->val[i],
194 &entry->extensions->val[i + 1],
195 sizeof(entry->extensions->val[i]) * (entry->extensions->len - i - 1));
196 entry->extensions->len--;
199 if (entry->extensions->len == 0) {
200 free(entry->extensions->val);
201 free(entry->extensions);
202 entry->extensions = NULL;
210 hdb_entry_get_pkinit_acl(const hdb_entry *entry, const HDB_Ext_PKINIT_acl **a)
212 const HDB_extension *ext;
214 ext = hdb_find_extension(entry, choice_HDB_extension_data_pkinit_acl);
216 *a = &ext->data.u.pkinit_acl;
224 hdb_entry_get_pkinit_hash(const hdb_entry *entry, const HDB_Ext_PKINIT_hash **a)
226 const HDB_extension *ext;
228 ext = hdb_find_extension(entry, choice_HDB_extension_data_pkinit_cert_hash);
230 *a = &ext->data.u.pkinit_cert_hash;
238 hdb_entry_get_pw_change_time(const hdb_entry *entry, time_t *t)
240 const HDB_extension *ext;
242 ext = hdb_find_extension(entry, choice_HDB_extension_data_last_pw_change);
244 *t = ext->data.u.last_pw_change;
252 hdb_entry_set_pw_change_time(krb5_context context,
258 ext.mandatory = FALSE;
259 ext.data.element = choice_HDB_extension_data_last_pw_change;
262 ext.data.u.last_pw_change = t;
264 return hdb_replace_extension(context, entry, &ext);
268 hdb_entry_get_password(krb5_context context, HDB *db,
269 const hdb_entry *entry, char **p)
275 ext = hdb_find_extension(entry, choice_HDB_extension_data_password);
277 heim_utf8_string str;
278 heim_octet_string pw;
280 if (db->hdb_master_key_set && ext->data.u.password.mkvno) {
283 key = _hdb_find_master_key(ext->data.u.password.mkvno,
287 krb5_set_error_message(context, HDB_ERR_NO_MKEY,
288 "master key %d missing",
289 *ext->data.u.password.mkvno);
290 return HDB_ERR_NO_MKEY;
293 ret = _hdb_mkey_decrypt(context, key, HDB_KU_MKEY,
294 ext->data.u.password.password.data,
295 ext->data.u.password.password.length,
298 ret = der_copy_octet_string(&ext->data.u.password.password, &pw);
301 krb5_clear_error_string(context);
306 if (str[pw.length - 1] != '\0') {
307 krb5_set_error_message(context, EINVAL, "password malformated");
313 der_free_octet_string(&pw);
315 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
321 ret = krb5_unparse_name(context, entry->principal, &str);
323 krb5_set_error_message(context, ENOENT, "no password attributefor %s", str);
326 krb5_clear_error_string(context);
332 hdb_entry_set_password(krb5_context context, HDB *db,
333 hdb_entry *entry, const char *p)
339 ext.mandatory = FALSE;
340 ext.data.element = choice_HDB_extension_data_password;
342 if (db->hdb_master_key_set) {
344 key = _hdb_find_master_key(NULL, db->hdb_master_key);
346 krb5_set_error_message(context, HDB_ERR_NO_MKEY,
347 "hdb_entry_set_password: "
348 "failed to find masterkey");
349 return HDB_ERR_NO_MKEY;
352 ret = _hdb_mkey_encrypt(context, key, HDB_KU_MKEY,
354 &ext.data.u.password.password);
358 ext.data.u.password.mkvno =
359 malloc(sizeof(*ext.data.u.password.mkvno));
360 if (ext.data.u.password.mkvno == NULL) {
361 free_HDB_extension(&ext);
362 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
365 *ext.data.u.password.mkvno = _hdb_mkey_version(key);
368 ext.data.u.password.mkvno = NULL;
370 ret = krb5_data_copy(&ext.data.u.password.password,
373 krb5_set_error_message(context, ret, "malloc: out of memory");
374 free_HDB_extension(&ext);
379 ret = hdb_replace_extension(context, entry, &ext);
381 free_HDB_extension(&ext);
387 hdb_entry_clear_password(krb5_context context, hdb_entry *entry)
389 return hdb_clear_extension(context, entry,
390 choice_HDB_extension_data_password);
394 hdb_entry_get_ConstrainedDelegACL(const hdb_entry *entry,
395 const HDB_Ext_Constrained_delegation_acl **a)
397 const HDB_extension *ext;
399 ext = hdb_find_extension(entry,
400 choice_HDB_extension_data_allowed_to_delegate_to);
402 *a = &ext->data.u.allowed_to_delegate_to;
410 hdb_entry_get_aliases(const hdb_entry *entry, const HDB_Ext_Aliases **a)
412 const HDB_extension *ext;
414 ext = hdb_find_extension(entry, choice_HDB_extension_data_aliases);
416 *a = &ext->data.u.aliases;