1 /* $NetBSD: del_enctype.c,v 1.2 2017/01/28 21:31:44 christos Exp $ */
2
3 /*
4 * Copyright (c) 1999-2006 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 "kadmin_locl.h"
37 #include "kadmin-commands.h"
38
39 /*
40 * del_enctype principal enctypes...
41 */
42
43 int
del_enctype(void * opt,int argc,char ** argv)44 del_enctype(void *opt, int argc, char **argv)
45 {
46 kadm5_principal_ent_rec princ;
47 krb5_principal princ_ent = NULL;
48 krb5_error_code ret;
49 const char *princ_name;
50 int i, j, k;
51 krb5_key_data *new_key_data;
52 int n_etypes;
53 krb5_enctype *etypes;
54 krb5_key_data *key;
55
56 memset (&princ, 0, sizeof(princ));
57 princ_name = argv[0];
58 n_etypes = argc - 1;
59 etypes = malloc (n_etypes * sizeof(*etypes));
60 if (etypes == NULL) {
61 krb5_warnx (context, "out of memory");
62 return 0;
63 }
64 argv++;
65 for (i = 0; i < n_etypes; ++i) {
66 ret = krb5_string_to_enctype (context, argv[i], &etypes[i]);
67 if (ret) {
68 krb5_warnx (context, "bad enctype \"%s\"", argv[i]);
69 goto out2;
70 }
71 }
72
73 ret = krb5_parse_name(context, princ_name, &princ_ent);
74 if (ret) {
75 krb5_warn (context, ret, "krb5_parse_name %s", princ_name);
76 goto out2;
77 }
78
79 ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
80 KADM5_PRINCIPAL | KADM5_KEY_DATA);
81 if (ret) {
82 krb5_free_principal (context, princ_ent);
83 krb5_warnx (context, "no such principal: %s", princ_name);
84 goto out2;
85 }
86
87 if (kadm5_all_keys_are_bogus(princ.n_key_data, princ.key_data)) {
88 krb5_warnx(context, "user lacks get-keys privilege");
89 goto out;
90 }
91
92 new_key_data = malloc(princ.n_key_data * sizeof(*new_key_data));
93 if (new_key_data == NULL && princ.n_key_data != 0) {
94 krb5_warnx (context, "out of memory");
95 goto out;
96 }
97
98 for (i = 0, j = 0; i < princ.n_key_data; ++i) {
99 int docopy = 1;
100 key = &princ.key_data[i];
101
102 for (k = 0; k < n_etypes; ++k) {
103 if (etypes[k] == key->key_data_type[0]) {
104 docopy = 0;
105 break;
106 }
107 }
108 if (docopy) {
109 new_key_data[j++] = *key;
110 } else {
111 int16_t ignore = 1;
112
113 kadm5_free_key_data (kadm_handle, &ignore, key);
114 }
115 }
116
117 free (princ.key_data);
118 if (j == 0) {
119 free(new_key_data);
120 new_key_data = NULL;
121 }
122 princ.n_key_data = j;
123 princ.key_data = new_key_data;
124
125 ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
126 if (ret)
127 krb5_warn(context, ret, "kadm5_modify_principal");
128 out:
129 krb5_free_principal (context, princ_ent);
130 kadm5_free_principal_ent(kadm_handle, &princ);
131 out2:
132 free (etypes);
133 return ret != 0;
134 }
135