1 /*
2 * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
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
37 struct ext_keytab_data {
38 krb5_keytab keytab;
39 };
40
41 static int
do_ext_keytab(krb5_principal principal,void * data)42 do_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
111 int
ext_keytab(struct ext_keytab_options * opt,int argc,char ** argv)112 ext_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