1/*
2 * Copyright (c) 1997 - 2006 Kungliga Tekniska H��gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
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.
16 *
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.
20 *
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
31 * SUCH DAMAGE.
32 */
33
34#include "kadmin_locl.h"
35#include "kadmin-commands.h"
36
37struct ext_keytab_data {
38    krb5_keytab keytab;
39};
40
41static int
42do_ext_keytab(krb5_principal principal, void *data)
43{
44    krb5_error_code ret;
45    kadm5_principal_ent_rec princ;
46    struct ext_keytab_data *e = data;
47    krb5_keytab_entry *keys = NULL;
48    krb5_keyblock *k = NULL;
49    int i, n_k;
50
51    ret = kadm5_get_principal(kadm_handle, principal, &princ,
52			      KADM5_PRINCIPAL|KADM5_KVNO|KADM5_KEY_DATA);
53    if(ret)
54	return ret;
55
56    if (princ.n_key_data) {
57	keys = malloc(sizeof(*keys) * princ.n_key_data);
58	if (keys == NULL) {
59	    kadm5_free_principal_ent(kadm_handle, &princ);
60	    krb5_clear_error_message(context);
61	    return ENOMEM;
62	}
63	for (i = 0; i < princ.n_key_data; i++) {
64	    krb5_key_data *kd = &princ.key_data[i];
65
66	    keys[i].principal = princ.principal;
67	    keys[i].vno = kd->key_data_kvno;
68	    keys[i].keyblock.keytype = kd->key_data_type[0];
69	    keys[i].keyblock.keyvalue.length = kd->key_data_length[0];
70	    keys[i].keyblock.keyvalue.data = kd->key_data_contents[0];
71	    keys[i].timestamp = time(NULL);
72	}
73
74	n_k = princ.n_key_data;
75    } else {
76	ret = kadm5_randkey_principal(kadm_handle, principal, &k, &n_k);
77	if (ret) {
78	    kadm5_free_principal_ent(kadm_handle, &princ);
79	    return ret;
80	}
81	keys = malloc(sizeof(*keys) * n_k);
82	if (keys == NULL) {
83	    kadm5_free_principal_ent(kadm_handle, &princ);
84	    krb5_clear_error_message(context);
85	    return ENOMEM;
86	}
87	for (i = 0; i < n_k; i++) {
88	    keys[i].principal = principal;
89	    keys[i].vno = princ.kvno + 1; /* XXX get entry again */
90	    keys[i].keyblock = k[i];
91	    keys[i].timestamp = time(NULL);
92	}
93    }
94
95    for(i = 0; i < n_k; i++) {
96	ret = krb5_kt_add_entry(context, e->keytab, &keys[i]);
97	if(ret)
98	    krb5_warn(context, ret, "krb5_kt_add_entry(%d)", i);
99    }
100
101    if (k) {
102	memset(k, 0, n_k * sizeof(*k));
103	free(k);
104    }
105    if (keys)
106	free(keys);
107    kadm5_free_principal_ent(kadm_handle, &princ);
108    return 0;
109}
110
111int
112ext_keytab(struct ext_keytab_options *opt, int argc, char **argv)
113{
114    krb5_error_code ret;
115    int i;
116    struct ext_keytab_data data;
117
118    if (opt->keytab_string == NULL)
119	ret = krb5_kt_default(context, &data.keytab);
120    else
121	ret = krb5_kt_resolve(context, opt->keytab_string, &data.keytab);
122
123    if(ret){
124	krb5_warn(context, ret, "krb5_kt_resolve");
125	return 1;
126    }
127
128    for(i = 0; i < argc; i++) {
129	ret = foreach_principal(argv[i], do_ext_keytab, "ext", &data);
130	if (ret)
131	    break;
132    }
133
134    krb5_kt_close(context, data.keytab);
135
136    return ret != 0;
137}
138