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
139
140
141
142
143
144
145
|
/* Copyright (C) 2019 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <tap/basic.h>
#include <string.h>
#include "binary.h"
#include "dname.c"
#include "tsig.h"
static const dnssec_binary_t payload = {
.size = 40,
.data = (uint8_t []){
0xfd, 0x07, 0xca, 0x30, 0xf9, 0xff, 0x38, 0xb1, 0x32, 0x54,
0xd1, 0x16, 0x24, 0xaa, 0x81, 0x2c, 0x97, 0xa0, 0x7a, 0xac,
0x68, 0x7a, 0x3a, 0x60, 0xde, 0xc9, 0xf7, 0x7a, 0x5a, 0x58,
0xff, 0xc9, 0x0c, 0xef, 0x31, 0xc7, 0x45, 0x2c, 0xee, 0x9d,
}
};
static const dnssec_binary_t key = {
.size = 16,
.data = (uint8_t []){
0xa8, 0x05, 0x9c, 0x5c, 0x20, 0xc5, 0x00, 0x22, 0x6f, 0xad,
0xf2, 0x55, 0xdf, 0x89, 0x8a, 0x68
}
};
typedef struct hmac {
int algorithm;
const char *name;
const dnssec_binary_t hmac;
} hmac_t;
static const hmac_t HMACS[] = {
{ DNSSEC_TSIG_HMAC_MD5, "md5", { .size = 16, .data = (uint8_t []) {
0x12, 0x38, 0x17, 0x4f, 0xa9, 0xc7, 0x5b, 0xcf, 0xd7, 0x08,
0x19, 0x97, 0xf9, 0x3d, 0x5e, 0xe7
}}},
{ DNSSEC_TSIG_HMAC_SHA1, "sha1", { .size = 20, .data = (uint8_t []) {
0xb8, 0x18, 0x2a, 0x5d, 0xf8, 0x2e, 0xa0, 0xb7, 0xcc, 0xcc,
0xed, 0xc1, 0xaa, 0x34, 0xeb, 0x92, 0x48, 0xf9, 0x65, 0x7b
}}},
{ DNSSEC_TSIG_HMAC_SHA224, "sha224", { .size = 28, .data = (uint8_t []) {
0xb7, 0x43, 0xcd, 0x0d, 0x9d, 0x51, 0x8c, 0x61, 0xc6, 0x43,
0x98, 0x73, 0x5c, 0x16, 0x01, 0x1b, 0xfc, 0x82, 0xe9, 0x99,
0xc2, 0x21, 0xde, 0x16, 0xb1, 0x94, 0x2d, 0xd5
}}},
{ DNSSEC_TSIG_HMAC_SHA256, "sha256", { .size = 32, .data = (uint8_t []) {
0x16, 0x5e, 0xf6, 0xed, 0x9b, 0x1a, 0xe5, 0x67, 0x58, 0x7b,
0xf1, 0x35, 0x9e, 0x59, 0xbd, 0x50, 0x6d, 0x72, 0xf8, 0x87,
0x0e, 0x22, 0xda, 0x65, 0x00, 0xd6, 0x76, 0x91, 0xde, 0x5f,
0xec, 0xd8
}}},
{ DNSSEC_TSIG_HMAC_SHA384, "sha384", { .size = 48, .data = (uint8_t []) {
0x8a, 0xcf, 0xf3, 0xb7, 0x1c, 0xbe, 0x5c, 0x3e, 0x05, 0x74,
0x97, 0x46, 0x04, 0x79, 0x3a, 0xe7, 0x8a, 0x5b, 0x7b, 0x12,
0xca, 0xcd, 0xf2, 0xe2, 0xdf, 0xa9, 0x17, 0xfc, 0x8e, 0x61,
0xc5, 0x86, 0x3e, 0xdc, 0xad, 0x84, 0x9e, 0x13, 0x0d, 0xa0,
0x04, 0xb6, 0x6f, 0x7c, 0x85, 0x1b, 0x5c, 0xdf
}}},
{ DNSSEC_TSIG_HMAC_SHA512, "sha512", { .size = 64, .data = (uint8_t []) {
0xc3, 0x41, 0xd0, 0x96, 0x50, 0xd7, 0xf7, 0xfd, 0x59, 0x73,
0xde, 0xd6, 0xc7, 0x4c, 0xda, 0xf1, 0x5d, 0xe1, 0x59, 0x34,
0x79, 0xdc, 0x93, 0x23, 0xcb, 0xf2, 0x1f, 0x25, 0x4e, 0x35,
0xb0, 0xd0, 0x9f, 0xfc, 0x22, 0xf1, 0xea, 0xbf, 0x9c, 0x18,
0xd8, 0xcc, 0xcd, 0xb6, 0xb1, 0x4a, 0x06, 0x09, 0xc4, 0x3f,
0x28, 0x93, 0x71, 0xd6, 0xca, 0xce, 0xf3, 0xa6, 0x08, 0x38,
0xe3, 0x99, 0xc1, 0xb2
}}},
{ 0 }
};
static void test_lookup_dname(const uint8_t *dname, int algorithm)
{
dnssec_tsig_algorithm_t alg = dnssec_tsig_algorithm_from_dname(dname);
const char *name = dnssec_tsig_algorithm_to_name(algorithm);
if (name == NULL) name = "invalid";
ok(alg == algorithm, "dnssec_tsig_algorithm_from_dname(%s)", name);
const uint8_t *reverse = dnssec_tsig_algorithm_to_dname(algorithm);
ok((algorithm == DNSSEC_TSIG_UNKNOWN && reverse == NULL) ||
(algorithm != DNSSEC_TSIG_UNKNOWN && dname_equal(reverse, dname)),
"dnssec_tsig_algorithm_to_dname(%d)", algorithm);
}
static void test_lookup_name(const char *name, int algorithm)
{
ok(dnssec_tsig_algorithm_from_name(name) == algorithm,
"dnssec_tsig_algorithm_from_name(%s)", name);
const char *reverse = dnssec_tsig_algorithm_to_name(algorithm);
ok((algorithm == DNSSEC_TSIG_UNKNOWN && reverse == NULL) ||
(algorithm != DNSSEC_TSIG_UNKNOWN && strcasecmp(reverse, name) == 0),
"dnssec_tsig_algorithm_to_name(%d)", algorithm);
}
static void test_tsig_hmac(const hmac_t *params)
{
dnssec_tsig_ctx_t *ctx = NULL;
dnssec_tsig_new(&ctx, params->algorithm, &key);
dnssec_tsig_add(ctx, &payload);
size_t size = dnssec_tsig_size(ctx);
uint8_t hmac[size];
dnssec_tsig_write(ctx, hmac);
dnssec_tsig_free(ctx);
ok(size == params->hmac.size && memcmp(hmac, params->hmac.data, size) == 0,
"dnssec_tsig_write(%s)", params->name);
}
int main(void)
{
plan_lazy();
test_lookup_dname((uint8_t *)"\x08""HMAC-MD5""\x07""SIG-ALG""\x03""REG""\x03""INT",
DNSSEC_TSIG_HMAC_MD5);
test_lookup_dname((uint8_t *)"\x0B""hmac-sha224", DNSSEC_TSIG_HMAC_SHA224);
test_lookup_dname((uint8_t *)"\x06""foobar", DNSSEC_TSIG_UNKNOWN);
test_lookup_name("hmac-md5", DNSSEC_TSIG_HMAC_MD5);
test_lookup_name("hmac-sha512", DNSSEC_TSIG_HMAC_SHA512);
test_lookup_name("barfoo", DNSSEC_TSIG_UNKNOWN);
test_lookup_name("hmac-foo", DNSSEC_TSIG_UNKNOWN);
for (const hmac_t *h = HMACS; h->algorithm != 0; h++) {
test_tsig_hmac(h);
}
return 0;
}
|
