1 /* $NetBSD: setkey3_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2001, 2003, 2005-2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "kadm5_locl.h"
37
38 /**
39 * Server-side function to set new keys for a principal.
40 */
41 kadm5_ret_t
kadm5_s_setkey_principal_3(void * server_handle,krb5_principal princ,krb5_boolean keepold,int n_ks_tuple,krb5_key_salt_tuple * ks_tuple,krb5_keyblock * keyblocks,int n_keys)42 kadm5_s_setkey_principal_3(void *server_handle,
43 krb5_principal princ,
44 krb5_boolean keepold,
45 int n_ks_tuple,
46 krb5_key_salt_tuple *ks_tuple,
47 krb5_keyblock *keyblocks, int n_keys)
48 {
49 kadm5_server_context *context = server_handle;
50 hdb_entry_ex ent;
51 kadm5_ret_t ret = 0;
52
53 memset(&ent, 0, sizeof(ent));
54 if (!context->keep_open)
55 ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
56 if (ret)
57 return ret;
58
59 ret = kadm5_log_init(context);
60 if (ret) {
61 if (!context->keep_open)
62 context->db->hdb_close(context->context, context->db);
63 return ret;
64 }
65
66 ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
67 HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
68 if (ret) {
69 (void) kadm5_log_end(context);
70 if (!context->keep_open)
71 context->db->hdb_close(context->context, context->db);
72 return ret;
73 }
74
75 if (keepold) {
76 ret = hdb_add_current_keys_to_history(context->context, &ent.entry);
77 } else
78 ret = hdb_clear_extension(context->context, &ent.entry,
79 choice_HDB_extension_data_hist_keys);
80
81 /*
82 * Though in practice all real calls to this function will pass an empty
83 * ks_tuple, and cannot in any case employ any salts that require
84 * additional data, we go the extra mile to set any requested salt type
85 * along with a zero length salt value. While we're at it we check that
86 * each ks_tuple's enctype matches the corresponding key enctype.
87 */
88 if (ret == 0) {
89 int i;
90
91 free_Keys(&ent.entry.keys);
92 for (i = 0; i < n_keys; ++i) {
93 Key k;
94 Salt s;
95
96 k.mkvno = 0;
97 k.key = keyblocks[i];
98 if (n_ks_tuple == 0)
99 k.salt = 0;
100 else {
101 if (ks_tuple[i].ks_enctype != keyblocks[i].keytype) {
102 ret = KADM5_SETKEY3_ETYPE_MISMATCH;
103 break;
104 }
105 s.type = ks_tuple[i].ks_salttype;
106 s.salt.data = 0;
107 s.opaque = 0;
108 k.salt = &s;
109 }
110 if ((ret = add_Keys(&ent.entry.keys, &k)) != 0)
111 break;
112 }
113 }
114
115 if (ret == 0) {
116 ent.entry.kvno++;
117 ent.entry.flags.require_pwchange = 0;
118 hdb_entry_set_pw_change_time(context->context, &ent.entry, 0);
119 hdb_entry_clear_password(context->context, &ent.entry);
120
121 if ((ret = hdb_seal_keys(context->context, context->db,
122 &ent.entry)) == 0
123 && (ret = _kadm5_set_modifier(context, &ent.entry)) == 0
124 && (ret = _kadm5_bump_pw_expire(context, &ent.entry)) == 0)
125 ret = kadm5_log_modify(context, &ent.entry,
126 KADM5_ATTRIBUTES | KADM5_PRINCIPAL |
127 KADM5_MOD_NAME | KADM5_MOD_TIME |
128 KADM5_KEY_DATA | KADM5_KVNO |
129 KADM5_PW_EXPIRATION | KADM5_TL_DATA);
130 }
131
132 hdb_free_entry(context->context, &ent);
133 (void) kadm5_log_end(context);
134 if (!context->keep_open)
135 context->db->hdb_close(context->context, context->db);
136 return _kadm5_error_code(ret);
137 }
138