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
|
/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* tests/icinterleave.c - interleaved init_creds_step test harness */
/*
* Copyright (C) 2017 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This test harness performs multiple initial creds operations using
* krb5_init_creds_step(), interleaving the operations to test the scoping of
* the preauth state. All principals must have the same password (or not
* require a password).
*/
#include "k5-int.h"
static krb5_context ctx;
static void
check(krb5_error_code code)
{
const char *errmsg;
if (code) {
errmsg = krb5_get_error_message(ctx, code);
fprintf(stderr, "%s\n", errmsg);
krb5_free_error_message(ctx, errmsg);
exit(1);
}
}
int
main(int argc, char **argv)
{
const char *password;
char **princstrs;
krb5_principal client;
krb5_init_creds_context *iccs;
krb5_data req, *reps, realm;
krb5_boolean any_left;
int i, nclients, primary;
unsigned int flags;
if (argc < 3) {
fprintf(stderr, "Usage: icinterleave password princ1 princ2 ...\n");
exit(1);
}
password = argv[1];
princstrs = argv + 2;
nclients = argc - 2;
check(krb5_init_context(&ctx));
/* Create an initial creds context for each client principal. */
iccs = calloc(nclients, sizeof(*iccs));
assert(iccs != NULL);
for (i = 0; i < nclients; i++) {
check(krb5_parse_name(ctx, princstrs[i], &client));
check(krb5_init_creds_init(ctx, client, NULL, NULL, 0, NULL,
&iccs[i]));
check(krb5_init_creds_set_password(ctx, iccs[i], password));
krb5_free_principal(ctx, client);
}
reps = calloc(nclients, sizeof(*reps));
assert(reps != NULL);
any_left = TRUE;
while (any_left) {
any_left = FALSE;
for (i = 0; i < nclients; i++) {
if (iccs[i] == NULL)
continue;
any_left = TRUE;
printf("step %d\n", i + 1);
req = empty_data();
realm = empty_data();
check(krb5_init_creds_step(ctx, iccs[i], &reps[i], &req, &realm,
&flags));
if (!(flags & KRB5_INIT_CREDS_STEP_FLAG_CONTINUE)) {
printf("finish %d\n", i + 1);
krb5_init_creds_free(ctx, iccs[i]);
iccs[i] = NULL;
continue;
}
primary = 0;
krb5_free_data_contents(ctx, &reps[i]);
check(krb5_sendto_kdc(ctx, &req, &realm, &reps[i], &primary, 0));
krb5_free_data_contents(ctx, &req);
krb5_free_data_contents(ctx, &realm);
}
}
for (i = 0; i < nclients; i++)
krb5_free_data_contents(ctx, &reps[i]);
free(reps);
free(iccs);
krb5_free_context(ctx);
return 0;
}
|
