2 * Copyright (c) 1997-2005 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
34 #include "ktutil_locl.h"
38 static krb5_error_code
39 change_entry(krb5_keytab keytab,
40 krb5_principal principal,
44 krb5_key_salt_tuple *kstuple,
46 const char *admin_server,
50 kadm5_config_params conf;
57 ret = krb5_unparse_name (context, principal, &client_name);
59 krb5_warn (context, ret, "krb5_unparse_name");
63 memset (&conf, 0, sizeof(conf));
66 realm = krb5_principal_get_realm(context, principal);
67 conf.realm = strdup(realm);
68 if (conf.realm == NULL) {
70 krb5_set_error_message(context, ENOMEM, "malloc failed");
73 conf.mask |= KADM5_CONFIG_REALM;
76 conf.admin_server = strdup(admin_server);
77 if (conf.admin_server == NULL) {
80 krb5_set_error_message(context, ENOMEM, "malloc failed");
83 conf.mask |= KADM5_CONFIG_ADMIN_SERVER;
87 conf.kadmind_port = htons(server_port);
88 conf.mask |= KADM5_CONFIG_KADMIND_PORT;
91 ret = kadm5_init_with_skey_ctx (context,
97 free(conf.admin_server);
100 krb5_warn (context, ret,
101 "kadm5_c_init_with_skey_ctx: %s:", client_name);
105 ret = kadm5_randkey_principal_3(kadm_handle, principal, keep, nkstuple,
106 kstuple, &keys, &num_keys);
107 kadm5_destroy(kadm_handle);
109 krb5_warn(context, ret, "kadm5_randkey_principal_3: %s:", client_name);
114 for (i = 0; i < num_keys; ++i) {
115 krb5_keytab_entry new_entry;
117 new_entry.principal = principal;
118 new_entry.timestamp = time (NULL);
119 new_entry.vno = kvno + 1;
120 new_entry.keyblock = keys[i];
122 ret = krb5_kt_add_entry (context, keytab, &new_entry);
124 krb5_warn (context, ret, "krb5_kt_add_entry");
125 krb5_free_keyblock_contents (context, &keys[i]);
131 * loop over all the entries in the keytab (or those given) and change
132 * their keys, writing the new keys
136 krb5_principal principal;
141 kt_change(struct change_options *opt, int argc, char **argv)
145 krb5_kt_cursor cursor;
146 krb5_keytab_entry entry;
147 krb5_key_salt_tuple *kstuple = NULL;
149 size_t i, j, max, nkstuple;
151 struct change_set *changeset;
156 if (opt->keepold_flag) {
160 if (opt->keepallold_flag) {
164 if (opt->pruneall_flag) {
169 fprintf(stderr, "use only one of --keepold, --keepallold, or --pruneall\n");
173 enctype = opt->enctype_string;
174 if (enctype == NULL || enctype[0] == '\0')
175 enctype = krb5_config_get_string(context, NULL, "libdefaults",
176 "supported_enctypes", NULL);
177 if (enctype == NULL || enctype[0] == '\0')
178 enctype = "aes128-cts-hmac-sha1-96";
179 ret = krb5_string_to_keysalts2(context, enctype, &nkstuple, &kstuple);
181 fprintf(stderr, "enctype(s) unknown\n");
185 /* XXX Parameterize keytab name */
186 if ((keytab = ktutil_open_keytab()) == NULL) {
195 ret = krb5_kt_start_seq_get(context, keytab, &cursor);
197 krb5_warn(context, ret, "%s", keytab_string);
201 while((ret = krb5_kt_next_entry(context, keytab, &entry, &cursor)) == 0) {
204 for (i = 0; i < j; ++i) {
205 if (krb5_principal_compare (context, changeset[i].principal,
207 if (changeset[i].kvno < entry.vno)
208 changeset[i].kvno = entry.vno;
213 krb5_kt_free_entry (context, &entry);
220 for (i = 0; i < argc; ++i) {
221 krb5_principal princ;
223 ret = krb5_parse_name (context, argv[i], &princ);
225 krb5_warn (context, ret, "%s", argv[i]);
228 if (krb5_principal_compare (context, princ, entry.principal))
231 krb5_free_principal (context, princ);
239 max = max(max * 2, 1);
240 tmp = realloc (changeset, max * sizeof(*changeset));
242 krb5_kt_free_entry (context, &entry);
243 krb5_warnx (context, "realloc: out of memory");
249 ret = krb5_copy_principal (context, entry.principal,
250 &changeset[j].principal);
252 krb5_warn (context, ret, "krb5_copy_principal");
253 krb5_kt_free_entry (context, &entry);
256 changeset[j].kvno = entry.vno;
259 krb5_kt_free_entry (context, &entry);
261 krb5_kt_end_seq_get(context, keytab, &cursor);
263 if (ret == KRB5_KT_END) {
265 for (i = 0; i < j; i++) {
269 ret = krb5_unparse_name (context, changeset[i].principal,
272 krb5_warn (context, ret, "krb5_unparse_name");
274 printf("Changing %s kvno %d\n",
275 client_name, changeset[i].kvno);
279 ret = change_entry(keytab,
280 changeset[i].principal, changeset[i].kvno,
281 keep, nkstuple, kstuple,
283 opt->admin_server_string,
284 opt->server_port_integer);
290 for (i = 0; i < j; i++)
291 krb5_free_principal (context, changeset[i].principal);
296 krb5_kt_close(context, keytab);