1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Kerberos test setup requiring the kadmin API.
*
* This file collects Kerberos test setup functions that use the kadmin API to
* put principals into particular configurations for testing. Currently, the
* only implemented functionality is to mark a password as expired.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
* Copyright 2017 Russ Allbery <eagle@eyrie.org>
* Copyright 2011
* The Board of Trustees of the Leland Stanford Junior University
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* SPDX-License-Identifier: MIT
*/
#include <config.h>
#ifdef HAVE_KADM5CLNT
# include <portable/kadmin.h>
# include <portable/krb5.h>
#endif
#include <portable/system.h>
#include <time.h>
#include <tests/tap/basic.h>
#include <tests/tap/kadmin.h>
#include <tests/tap/kerberos.h>
/* Used for unused parameters to silence gcc warnings. */
#define UNUSED __attribute__((__unused__))
/*
* Given the principal to set an expiration on, set that principal to have an
* expired password. This requires that the realm admin server be configured
* either in DNS (with SRV records) or in krb5.conf (possibly the one
* KRB5_CONFIG is pointing to). Authentication is done using the keytab
* stored in config/admin-keytab.
*
* Returns true on success. Returns false if necessary configuration is
* missing so that the caller can choose whether to call bail or skip_all. If
* the configuration is present but the operation fails, bails.
*/
#ifdef HAVE_KADM5CLNT
bool
kerberos_expire_password(const char *principal, time_t expires)
{
char *path, *user;
const char *realm;
krb5_context ctx;
krb5_principal admin = NULL;
krb5_principal princ = NULL;
kadm5_ret_t code;
kadm5_config_params params;
kadm5_principal_ent_rec ent;
void *handle;
bool okay = false;
/* Set up for making our call. */
path = test_file_path("config/admin-keytab");
if (path == NULL)
return false;
code = krb5_init_context(&ctx);
if (code != 0)
bail_krb5(ctx, code, "error initializing Kerberos");
admin = kerberos_keytab_principal(ctx, path);
realm = krb5_principal_get_realm(ctx, admin);
code = krb5_set_default_realm(ctx, realm);
if (code != 0)
bail_krb5(ctx, code, "cannot set default realm");
code = krb5_unparse_name(ctx, admin, &user);
if (code != 0)
bail_krb5(ctx, code, "cannot unparse admin principal");
code = krb5_parse_name(ctx, principal, &princ);
if (code != 0)
bail_krb5(ctx, code, "cannot parse principal %s", principal);
/*
* If the actual kadmin calls fail, we may be built with MIT Kerberos
* against a Heimdal server or vice versa. Return false to skip the
* tests.
*/
memset(¶ms, 0, sizeof(params));
params.realm = (char *) realm;
params.mask = KADM5_CONFIG_REALM;
code = kadm5_init_with_skey_ctx(ctx, user, path, KADM5_ADMIN_SERVICE,
¶ms, KADM5_STRUCT_VERSION,
KADM5_API_VERSION, &handle);
if (code != 0) {
diag_krb5(ctx, code, "error initializing kadmin");
goto done;
}
memset(&ent, 0, sizeof(ent));
ent.principal = princ;
ent.pw_expiration = (krb5_timestamp) expires;
code = kadm5_modify_principal(handle, &ent, KADM5_PW_EXPIRATION);
if (code == 0)
okay = true;
else
diag_krb5(ctx, code, "error setting password expiration");
done:
kadm5_destroy(handle);
krb5_free_unparsed_name(ctx, user);
krb5_free_principal(ctx, admin);
krb5_free_principal(ctx, princ);
krb5_free_context(ctx);
test_file_path_free(path);
return okay;
}
#else /* !HAVE_KADM5CLNT */
bool
kerberos_expire_password(const char *principal UNUSED, time_t expires UNUSED)
{
return false;
}
#endif /* !HAVE_KADM5CLNT */
|
