1 /*        $NetBSD: test_cfx.c,v 1.2 2017/01/28 21:31:46 christos Exp $          */
2 
3 /*
4  * Copyright (c) 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 KTH nor the names of its contributors may be
20  *    used to endorse or promote products derived from this software without
21  *    specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
24  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #include "gsskrb5_locl.h"
37 
38 struct range {
39     size_t lower;
40     size_t upper;
41 };
42 
43 struct range tests[] = {
44     { 0, 1040 },
45     { 2040, 2080 },
46     { 4080, 5000 },
47     { 8180, 8292 },
48     { 9980, 10010 }
49 };
50 
51 static void
test_range(const struct range * r,int integ,krb5_context context,krb5_crypto crypto)52 test_range(const struct range *r, int integ,
53              krb5_context context, krb5_crypto crypto)
54 {
55     krb5_error_code ret;
56     size_t size, rsize;
57     struct gsskrb5_ctx ctx;
58 
59     for (size = r->lower; size < r->upper; size++) {
60           size_t cksumsize;
61           uint16_t padsize;
62           OM_uint32 minor;
63           OM_uint32 max_wrap_size;
64 
65           ctx.crypto = crypto;
66 
67           ret = _gssapi_wrap_size_cfx(&minor,
68                                             &ctx,
69                                             context,
70                                             integ,
71                                             0,
72                                             size,
73                                             &max_wrap_size);
74           if (ret)
75               krb5_errx(context, 1, "_gsskrb5cfx_max_wrap_length_cfx: %d", ret);
76           if (max_wrap_size == 0)
77               continue;
78 
79           ret = _gsskrb5cfx_wrap_length_cfx(context,
80                                                     crypto,
81                                                     integ,
82                                                     0,
83                                                     max_wrap_size,
84                                                     &rsize, &cksumsize, &padsize);
85           if (ret)
86               krb5_errx(context, 1, "_gsskrb5cfx_wrap_length_cfx: %d", ret);
87 
88           if (size < rsize)
89               krb5_errx(context, 1,
90                           "size (%d) < rsize (%d) for max_wrap_size %d",
91                           (int)size, (int)rsize, (int)max_wrap_size);
92     }
93 }
94 
95 static void
test_special(krb5_context context,krb5_crypto crypto,int integ,size_t testsize)96 test_special(krb5_context context, krb5_crypto crypto,
97                int integ, size_t testsize)
98 {
99     krb5_error_code ret;
100     size_t rsize;
101     OM_uint32 max_wrap_size;
102     size_t cksumsize;
103     uint16_t padsize;
104     struct gsskrb5_ctx ctx;
105     OM_uint32 minor;
106 
107     ctx.crypto = crypto;
108 
109     ret = _gssapi_wrap_size_cfx(&minor,
110                                         &ctx,
111                                         context,
112                                         integ,
113                                         0,
114                                         testsize,
115                                         &max_wrap_size);
116     if (ret)
117       krb5_errx(context, 1, "_gsskrb5cfx_max_wrap_length_cfx: %d", ret);
118     if (ret)
119           krb5_errx(context, 1, "_gsskrb5cfx_max_wrap_length_cfx: %d", ret);
120 
121     ret = _gsskrb5cfx_wrap_length_cfx(context,
122                                               crypto,
123                                               integ,
124                                               0,
125                                               max_wrap_size,
126                                               &rsize, &cksumsize, &padsize);
127     if (ret)
128           krb5_errx(context, 1, "_gsskrb5cfx_wrap_length_cfx: %d", ret);
129 
130     if (testsize < rsize)
131           krb5_errx(context, 1,
132                       "testsize (%d) < rsize (%d) for max_wrap_size %d",
133                       (int)testsize, (int)rsize, (int)max_wrap_size);
134 }
135 
136 
137 
138 
139 int
main(int argc,char ** argv)140 main(int argc, char **argv)
141 {
142     krb5_keyblock keyblock;
143     krb5_error_code ret;
144     krb5_context context;
145     krb5_crypto crypto;
146     int i;
147 
148     ret = krb5_init_context(&context);
149     if (ret)
150           errx(1, "krb5_context_init: %d", ret);
151 
152     ret = krb5_generate_random_keyblock(context,
153                                                   KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96,
154                                                   &keyblock);
155     if (ret)
156           krb5_err(context, 1, ret, "krb5_generate_random_keyblock");
157 
158     ret = krb5_crypto_init(context, &keyblock, 0, &crypto);
159     if (ret)
160           krb5_err(context, 1, ret, "krb5_crypto_init");
161 
162     test_special(context, crypto, 1, 60);
163     test_special(context, crypto, 0, 60);
164 
165     for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
166           test_range(&tests[i], 1, context, crypto);
167           test_range(&tests[i], 0, context, crypto);
168     }
169 
170     krb5_free_keyblock_contents(context, &keyblock);
171     krb5_crypto_destroy(context, crypto);
172     krb5_free_context(context);
173 
174     return 0;
175 }
176