diff options
author | nicoo <nicoo@debian.org> | 2020-02-12 13:42:22 +0100 |
---|---|---|
committer | Nicolas Braud-Santoni <nicolas@braud-santoni.eu> | 2020-02-12 13:42:22 +0100 |
commit | c79050aa44b8836d836c5dd22a383a073c28b74b (patch) | |
tree | 7bcca9fabd7718bf87ca600a6594f57b76d8de7d /fuzz/fuzz_assert.c |
Import upstream release 1.3.0
Closes: #951184
Diffstat (limited to 'fuzz/fuzz_assert.c')
-rw-r--r-- | fuzz/fuzz_assert.c | 664 |
1 files changed, 664 insertions, 0 deletions
diff --git a/fuzz/fuzz_assert.c b/fuzz/fuzz_assert.c new file mode 100644 index 0000000..0395345 --- /dev/null +++ b/fuzz/fuzz_assert.c | |||
@@ -0,0 +1,664 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2019 Yubico AB. All rights reserved. | ||
3 | * Use of this source code is governed by a BSD-style | ||
4 | * license that can be found in the LICENSE file. | ||
5 | */ | ||
6 | |||
7 | #include <assert.h> | ||
8 | #include <stdbool.h> | ||
9 | #include <stdint.h> | ||
10 | #include <stdlib.h> | ||
11 | #include <string.h> | ||
12 | #include <stdio.h> | ||
13 | |||
14 | #include "mutator_aux.h" | ||
15 | #include "fido.h" | ||
16 | #include "fido/es256.h" | ||
17 | #include "fido/rs256.h" | ||
18 | #include "fido/eddsa.h" | ||
19 | |||
20 | #include "../openbsd-compat/openbsd-compat.h" | ||
21 | |||
22 | #define TAG_U2F 0x01 | ||
23 | #define TAG_TYPE 0x02 | ||
24 | #define TAG_CDH 0x03 | ||
25 | #define TAG_RP_ID 0x04 | ||
26 | #define TAG_EXT 0x05 | ||
27 | #define TAG_SEED 0x06 | ||
28 | #define TAG_UP 0x07 | ||
29 | #define TAG_UV 0x08 | ||
30 | #define TAG_WIRE_DATA 0x09 | ||
31 | #define TAG_CRED_COUNT 0x0a | ||
32 | #define TAG_CRED 0x0b | ||
33 | #define TAG_ES256 0x0c | ||
34 | #define TAG_RS256 0x0d | ||
35 | #define TAG_PIN 0x0e | ||
36 | #define TAG_EDDSA 0x0f | ||
37 | |||
38 | /* Parameter set defining a FIDO2 get assertion operation. */ | ||
39 | struct param { | ||
40 | char pin[MAXSTR]; | ||
41 | char rp_id[MAXSTR]; | ||
42 | int ext; | ||
43 | int seed; | ||
44 | struct blob cdh; | ||
45 | struct blob cred; | ||
46 | struct blob es256; | ||
47 | struct blob rs256; | ||
48 | struct blob eddsa; | ||
49 | struct blob wire_data; | ||
50 | uint8_t cred_count; | ||
51 | uint8_t type; | ||
52 | uint8_t u2f; | ||
53 | uint8_t up; | ||
54 | uint8_t uv; | ||
55 | }; | ||
56 | |||
57 | /* Example parameters. */ | ||
58 | static const char dummy_rp_id[] = "localhost"; | ||
59 | static const char dummy_pin[] = "9}4gT:8d=A37Dh}U"; | ||
60 | |||
61 | static const uint8_t dummy_cdh[] = { | ||
62 | 0xec, 0x8d, 0x8f, 0x78, 0x42, 0x4a, 0x2b, 0xb7, | ||
63 | 0x82, 0x34, 0xaa, 0xca, 0x07, 0xa1, 0xf6, 0x56, | ||
64 | 0x42, 0x1c, 0xb6, 0xf6, 0xb3, 0x00, 0x86, 0x52, | ||
65 | 0x35, 0x2d, 0xa2, 0x62, 0x4a, 0xbe, 0x89, 0x76, | ||
66 | }; | ||
67 | |||
68 | static const uint8_t dummy_es256[] = { | ||
69 | 0xcc, 0x1b, 0x50, 0xac, 0xc4, 0x19, 0xf8, 0x3a, | ||
70 | 0xee, 0x0a, 0x77, 0xd6, 0xf3, 0x53, 0xdb, 0xef, | ||
71 | 0xf2, 0xb9, 0x5c, 0x2d, 0x8b, 0x1e, 0x52, 0x58, | ||
72 | 0x88, 0xf4, 0x0b, 0x85, 0x1f, 0x40, 0x6d, 0x18, | ||
73 | 0x15, 0xb3, 0xcc, 0x25, 0x7c, 0x38, 0x3d, 0xec, | ||
74 | 0xdf, 0xad, 0xbd, 0x46, 0x91, 0xc3, 0xac, 0x30, | ||
75 | 0x94, 0x2a, 0xf7, 0x78, 0x35, 0x70, 0x59, 0x6f, | ||
76 | 0x28, 0xcb, 0x8e, 0x07, 0x85, 0xb5, 0x91, 0x96, | ||
77 | }; | ||
78 | |||
79 | static const uint8_t dummy_rs256[] = { | ||
80 | 0xd2, 0xa8, 0xc0, 0x11, 0x82, 0x9e, 0x57, 0x2e, | ||
81 | 0x60, 0xae, 0x8c, 0xb0, 0x09, 0xe1, 0x58, 0x2b, | ||
82 | 0x99, 0xec, 0xc3, 0x11, 0x1b, 0xef, 0x81, 0x49, | ||
83 | 0x34, 0x53, 0x6a, 0x01, 0x65, 0x2c, 0x24, 0x09, | ||
84 | 0x30, 0x87, 0x98, 0x51, 0x6e, 0x30, 0x4f, 0x60, | ||
85 | 0xbd, 0x54, 0xd2, 0x54, 0xbd, 0x94, 0x42, 0xdd, | ||
86 | 0x63, 0xe5, 0x2c, 0xc6, 0x04, 0x32, 0xc0, 0x8f, | ||
87 | 0x72, 0xd5, 0xb4, 0xf0, 0x4f, 0x42, 0xe5, 0xb0, | ||
88 | 0xa2, 0x95, 0x11, 0xfe, 0xd8, 0xb0, 0x65, 0x34, | ||
89 | 0xff, 0xfb, 0x44, 0x97, 0x52, 0xfc, 0x67, 0x23, | ||
90 | 0x0b, 0xad, 0xf3, 0x3a, 0x82, 0xd4, 0x96, 0x10, | ||
91 | 0x87, 0x6b, 0xfa, 0xd6, 0x51, 0x60, 0x3e, 0x1c, | ||
92 | 0xae, 0x19, 0xb8, 0xce, 0x08, 0xae, 0x9a, 0xee, | ||
93 | 0x78, 0x16, 0x22, 0xcc, 0x92, 0xcb, 0xa8, 0x95, | ||
94 | 0x34, 0xe5, 0xb9, 0x42, 0x6a, 0xf0, 0x2e, 0x82, | ||
95 | 0x1f, 0x4c, 0x7d, 0x84, 0x94, 0x68, 0x7b, 0x97, | ||
96 | 0x2b, 0xf7, 0x7d, 0x67, 0x83, 0xbb, 0xc7, 0x8a, | ||
97 | 0x31, 0x5a, 0xf3, 0x2a, 0x95, 0xdf, 0x63, 0xe7, | ||
98 | 0x4e, 0xee, 0x26, 0xda, 0x87, 0x00, 0xe2, 0x23, | ||
99 | 0x4a, 0x33, 0x9a, 0xa0, 0x1b, 0xce, 0x60, 0x1f, | ||
100 | 0x98, 0xa1, 0xb0, 0xdb, 0xbf, 0x20, 0x59, 0x27, | ||
101 | 0xf2, 0x06, 0xd9, 0xbe, 0x37, 0xa4, 0x03, 0x6b, | ||
102 | 0x6a, 0x4e, 0xaf, 0x22, 0x68, 0xf3, 0xff, 0x28, | ||
103 | 0x59, 0x05, 0xc9, 0xf1, 0x28, 0xf4, 0xbb, 0x35, | ||
104 | 0xe0, 0xc2, 0x68, 0xc2, 0xaa, 0x54, 0xac, 0x8c, | ||
105 | 0xc1, 0x69, 0x9e, 0x4b, 0x32, 0xfc, 0x53, 0x58, | ||
106 | 0x85, 0x7d, 0x3f, 0x51, 0xd1, 0xc9, 0x03, 0x02, | ||
107 | 0x13, 0x61, 0x62, 0xda, 0xf8, 0xfe, 0x3e, 0xc8, | ||
108 | 0x95, 0x12, 0xfb, 0x0c, 0xdf, 0x06, 0x65, 0x6f, | ||
109 | 0x23, 0xc7, 0x83, 0x7c, 0x50, 0x2d, 0x27, 0x25, | ||
110 | 0x4d, 0xbf, 0x94, 0xf0, 0x89, 0x04, 0xb9, 0x2d, | ||
111 | 0xc4, 0xa5, 0x32, 0xa9, 0x25, 0x0a, 0x99, 0x59, | ||
112 | 0x01, 0x00, 0x01, | ||
113 | }; | ||
114 | |||
115 | static const uint8_t dummy_eddsa[] = { | ||
116 | 0xfe, 0x8b, 0x61, 0x50, 0x31, 0x7a, 0xe6, 0xdf, | ||
117 | 0xb1, 0x04, 0x9d, 0x4d, 0xb5, 0x7a, 0x5e, 0x96, | ||
118 | 0x4c, 0xb2, 0xf9, 0x5f, 0x72, 0x47, 0xb5, 0x18, | ||
119 | 0xe2, 0x39, 0xdf, 0x2f, 0x87, 0x19, 0xb3, 0x02, | ||
120 | }; | ||
121 | |||
122 | /* | ||
123 | * Collection of HID reports from an authenticator issued with a FIDO2 | ||
124 | * get assertion using the example parameters above. | ||
125 | */ | ||
126 | static const uint8_t dummy_wire_data_fido[] = { | ||
127 | 0xff, 0xff, 0xff, 0xff, 0x86, 0x00, 0x11, 0xf7, | ||
128 | 0x6f, 0xda, 0x52, 0xfd, 0xcb, 0xb6, 0x24, 0x00, | ||
129 | 0x92, 0x00, 0x0e, 0x02, 0x05, 0x00, 0x02, 0x05, | ||
130 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
131 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
132 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
133 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
134 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
135 | 0x00, 0x92, 0x00, 0x0e, 0x90, 0x00, 0x51, 0x00, | ||
136 | 0xa1, 0x01, 0xa5, 0x01, 0x02, 0x03, 0x38, 0x18, | ||
137 | 0x20, 0x01, 0x21, 0x58, 0x20, 0xe9, 0x1d, 0x9b, | ||
138 | 0xac, 0x14, 0x25, 0x5f, 0xda, 0x1e, 0x11, 0xdb, | ||
139 | 0xae, 0xc2, 0x90, 0x22, 0xca, 0x32, 0xec, 0x32, | ||
140 | 0xe6, 0x05, 0x15, 0x44, 0xe5, 0xe8, 0xbc, 0x4f, | ||
141 | 0x0a, 0xb6, 0x1a, 0xeb, 0x11, 0x22, 0x58, 0x20, | ||
142 | 0xcc, 0x72, 0xf0, 0x22, 0xe8, 0x28, 0x82, 0xc5, | ||
143 | 0x00, 0x92, 0x00, 0x0e, 0x00, 0xa6, 0x65, 0x6e, | ||
144 | 0xff, 0x1e, 0xe3, 0x7f, 0x27, 0x44, 0x2d, 0xfb, | ||
145 | 0x8d, 0x41, 0xfa, 0x85, 0x0e, 0xcb, 0xda, 0x95, | ||
146 | 0x64, 0x64, 0x9b, 0x1f, 0x34, 0x00, 0x00, 0x00, | ||
147 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
148 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
149 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
150 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
151 | 0x00, 0x92, 0x00, 0x0e, 0x90, 0x00, 0x14, 0x00, | ||
152 | 0xa1, 0x02, 0x50, 0xee, 0x40, 0x4c, 0x85, 0xd7, | ||
153 | 0xa1, 0x2f, 0x56, 0xc4, 0x4e, 0xc5, 0x93, 0x41, | ||
154 | 0xd0, 0x3b, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
155 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
156 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
157 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
158 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
159 | 0x00, 0x92, 0x00, 0x0e, 0x90, 0x00, 0xcb, 0x00, | ||
160 | 0xa3, 0x01, 0xa2, 0x62, 0x69, 0x64, 0x58, 0x40, | ||
161 | 0x4a, 0x4c, 0x9e, 0xcc, 0x81, 0x7d, 0x42, 0x03, | ||
162 | 0x2b, 0x41, 0xd1, 0x38, 0xd3, 0x49, 0xb4, 0xfc, | ||
163 | 0xfb, 0xe4, 0x4e, 0xe4, 0xff, 0x76, 0x34, 0x16, | ||
164 | 0x68, 0x06, 0x9d, 0xa6, 0x01, 0x32, 0xb9, 0xff, | ||
165 | 0xc2, 0x35, 0x0d, 0x89, 0x43, 0x66, 0x12, 0xf8, | ||
166 | 0x8e, 0x5b, 0xde, 0xf4, 0xcc, 0xec, 0x9d, 0x03, | ||
167 | 0x00, 0x92, 0x00, 0x0e, 0x00, 0x85, 0xc2, 0xf5, | ||
168 | 0xe6, 0x8e, 0xeb, 0x3f, 0x3a, 0xec, 0xc3, 0x1d, | ||
169 | 0x04, 0x6e, 0xf3, 0x5b, 0x88, 0x64, 0x74, 0x79, | ||
170 | 0x70, 0x65, 0x6a, 0x70, 0x75, 0x62, 0x6c, 0x69, | ||
171 | 0x63, 0x2d, 0x6b, 0x65, 0x79, 0x02, 0x58, 0x25, | ||
172 | 0x49, 0x96, 0x0d, 0xe5, 0x88, 0x0e, 0x8c, 0x68, | ||
173 | 0x74, 0x34, 0x17, 0x0f, 0x64, 0x76, 0x60, 0x5b, | ||
174 | 0x8f, 0xe4, 0xae, 0xb9, 0xa2, 0x86, 0x32, 0xc7, | ||
175 | 0x00, 0x92, 0x00, 0x0e, 0x01, 0x99, 0x5c, 0xf3, | ||
176 | 0xba, 0x83, 0x1d, 0x97, 0x63, 0x04, 0x00, 0x00, | ||
177 | 0x00, 0x09, 0x03, 0x58, 0x47, 0x30, 0x45, 0x02, | ||
178 | 0x21, 0x00, 0xcf, 0x3f, 0x36, 0x0e, 0x1f, 0x6f, | ||
179 | 0xd6, 0xa0, 0x9d, 0x13, 0xcf, 0x55, 0xf7, 0x49, | ||
180 | 0x8f, 0xc8, 0xc9, 0x03, 0x12, 0x76, 0x41, 0x75, | ||
181 | 0x7b, 0xb5, 0x0a, 0x90, 0xa5, 0x82, 0x26, 0xf1, | ||
182 | 0x6b, 0x80, 0x02, 0x20, 0x34, 0x9b, 0x7a, 0x82, | ||
183 | 0x00, 0x92, 0x00, 0x0e, 0x02, 0xd3, 0xe1, 0x79, | ||
184 | 0x49, 0x55, 0x41, 0x9f, 0xa4, 0x06, 0x06, 0xbd, | ||
185 | 0xc8, 0xb9, 0x2b, 0x5f, 0xe1, 0xa7, 0x99, 0x1c, | ||
186 | 0xa1, 0xfc, 0x7e, 0x3e, 0xd5, 0x85, 0x2e, 0x11, | ||
187 | 0x75, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
188 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
189 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
190 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | ||
191 | }; | ||
192 | |||
193 | /* | ||
194 | * Collection of HID reports from an authenticator issued with a U2F | ||
195 | * authentication using the example parameters above. | ||
196 | */ | ||
197 | static const uint8_t dummy_wire_data_u2f[] = { | ||
198 | 0xff, 0xff, 0xff, 0xff, 0x86, 0x00, 0x11, 0x0f, | ||
199 | 0x26, 0x9c, 0xd3, 0x87, 0x0d, 0x7b, 0xf6, 0x00, | ||
200 | 0x00, 0x99, 0x01, 0x02, 0x01, 0x01, 0x00, 0x01, | ||
201 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
202 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
203 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
204 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
205 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
206 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
207 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
208 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
209 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
210 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
211 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
212 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
213 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
214 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
215 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
216 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
217 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
218 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
219 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
220 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
221 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
222 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
223 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
224 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
225 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
226 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
227 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
228 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
229 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
230 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
231 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
232 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
233 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
234 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
235 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
236 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
237 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
238 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
239 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
240 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
241 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
242 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
243 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
244 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
245 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
246 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
247 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
248 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
249 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
250 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
251 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
252 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
253 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
254 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
255 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
256 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
257 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
258 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
259 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
260 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
261 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
262 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
263 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
264 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
265 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
266 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
267 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
268 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
269 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
270 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x02, 0x69, | ||
271 | 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
272 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
273 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
274 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
275 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
276 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
277 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
278 | 0x00, 0x00, 0x99, 0x01, 0x83, 0x00, 0x4e, 0x01, | ||
279 | 0x00, 0x00, 0x00, 0x2c, 0x30, 0x45, 0x02, 0x20, | ||
280 | 0x1c, 0xf5, 0x7c, 0xf6, 0xde, 0xbe, 0xe9, 0x86, | ||
281 | 0xee, 0x97, 0xb7, 0x64, 0xa3, 0x4e, 0x7a, 0x70, | ||
282 | 0x85, 0xd0, 0x66, 0xf9, 0xf0, 0xcd, 0x04, 0x5d, | ||
283 | 0x97, 0xf2, 0x3c, 0x22, 0xe3, 0x0e, 0x61, 0xc8, | ||
284 | 0x02, 0x21, 0x00, 0x97, 0xef, 0xae, 0x36, 0xe6, | ||
285 | 0x17, 0x9f, 0x5e, 0x2d, 0xd7, 0x8c, 0x34, 0xa7, | ||
286 | 0x00, 0x00, 0x99, 0x01, 0x00, 0xa1, 0xe9, 0xfb, | ||
287 | 0x8f, 0x86, 0x8c, 0xe3, 0x1e, 0xde, 0x3f, 0x4e, | ||
288 | 0x1b, 0xe1, 0x2f, 0x8f, 0x2f, 0xca, 0x42, 0x26, | ||
289 | 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
290 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
291 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
292 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
293 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | ||
294 | }; | ||
295 | |||
296 | int LLVMFuzzerTestOneInput(const uint8_t *, size_t); | ||
297 | size_t LLVMFuzzerCustomMutator(uint8_t *, size_t, size_t, unsigned int); | ||
298 | |||
299 | static int | ||
300 | unpack(const uint8_t *ptr, size_t len, struct param *p) NO_MSAN | ||
301 | { | ||
302 | uint8_t **pp = (void *)&ptr; | ||
303 | |||
304 | if (unpack_byte(TAG_UV, pp, &len, &p->uv) < 0 || | ||
305 | unpack_byte(TAG_UP, pp, &len, &p->up) < 0 || | ||
306 | unpack_byte(TAG_U2F, pp, &len, &p->u2f) < 0 || | ||
307 | unpack_byte(TAG_TYPE, pp, &len, &p->type) < 0 || | ||
308 | unpack_byte(TAG_CRED_COUNT, pp, &len, &p->cred_count) < 0 || | ||
309 | unpack_int(TAG_EXT, pp, &len, &p->ext) < 0 || | ||
310 | unpack_int(TAG_SEED, pp, &len, &p->seed) < 0 || | ||
311 | unpack_string(TAG_RP_ID, pp, &len, p->rp_id) < 0 || | ||
312 | unpack_string(TAG_PIN, pp, &len, p->pin) < 0 || | ||
313 | unpack_blob(TAG_WIRE_DATA, pp, &len, &p->wire_data) < 0 || | ||
314 | unpack_blob(TAG_RS256, pp, &len, &p->rs256) < 0 || | ||
315 | unpack_blob(TAG_ES256, pp, &len, &p->es256) < 0 || | ||
316 | unpack_blob(TAG_EDDSA, pp, &len, &p->eddsa) < 0 || | ||
317 | unpack_blob(TAG_CRED, pp, &len, &p->cred) < 0 || | ||
318 | unpack_blob(TAG_CDH, pp, &len, &p->cdh) < 0) | ||
319 | return (-1); | ||
320 | |||
321 | return (0); | ||
322 | } | ||
323 | |||
324 | static size_t | ||
325 | pack(uint8_t *ptr, size_t len, const struct param *p) | ||
326 | { | ||
327 | const size_t max = len; | ||
328 | |||
329 | if (pack_byte(TAG_UV, &ptr, &len, p->uv) < 0 || | ||
330 | pack_byte(TAG_UP, &ptr, &len, p->up) < 0 || | ||
331 | pack_byte(TAG_U2F, &ptr, &len, p->u2f) < 0 || | ||
332 | pack_byte(TAG_TYPE, &ptr, &len, p->type) < 0 || | ||
333 | pack_byte(TAG_CRED_COUNT, &ptr, &len, p->cred_count) < 0 || | ||
334 | pack_int(TAG_EXT, &ptr, &len, p->ext) < 0 || | ||
335 | pack_int(TAG_SEED, &ptr, &len, p->seed) < 0 || | ||
336 | pack_string(TAG_RP_ID, &ptr, &len, p->rp_id) < 0 || | ||
337 | pack_string(TAG_PIN, &ptr, &len, p->pin) < 0 || | ||
338 | pack_blob(TAG_WIRE_DATA, &ptr, &len, &p->wire_data) < 0 || | ||
339 | pack_blob(TAG_RS256, &ptr, &len, &p->rs256) < 0 || | ||
340 | pack_blob(TAG_ES256, &ptr, &len, &p->es256) < 0 || | ||
341 | pack_blob(TAG_EDDSA, &ptr, &len, &p->eddsa) < 0 || | ||
342 | pack_blob(TAG_CRED, &ptr, &len, &p->cred) < 0 || | ||
343 | pack_blob(TAG_CDH, &ptr, &len, &p->cdh) < 0) | ||
344 | return (0); | ||
345 | |||
346 | return (max - len); | ||
347 | } | ||
348 | |||
349 | static void | ||
350 | get_assert(fido_assert_t *assert, uint8_t u2f, const struct blob *cdh, | ||
351 | const char *rp_id, int ext, uint8_t up, uint8_t uv, const char *pin, | ||
352 | uint8_t cred_count, struct blob *cred) | ||
353 | { | ||
354 | fido_dev_t *dev; | ||
355 | fido_dev_io_t io; | ||
356 | |||
357 | io.open = dev_open; | ||
358 | io.close = dev_close; | ||
359 | io.read = dev_read; | ||
360 | io.write = dev_write; | ||
361 | |||
362 | if ((dev = fido_dev_new()) == NULL || fido_dev_set_io_functions(dev, | ||
363 | &io) != FIDO_OK || fido_dev_open(dev, "nodev") != FIDO_OK) { | ||
364 | fido_dev_free(&dev); | ||
365 | return; | ||
366 | } | ||
367 | |||
368 | if (u2f & 1) | ||
369 | fido_dev_force_u2f(dev); | ||
370 | |||
371 | for (uint8_t i = 0; i < cred_count; i++) | ||
372 | fido_assert_allow_cred(assert, cred->body, cred->len); | ||
373 | |||
374 | fido_assert_set_clientdata_hash(assert, cdh->body, cdh->len); | ||
375 | fido_assert_set_rp(assert, rp_id); | ||
376 | if (ext & 1) | ||
377 | fido_assert_set_extensions(assert, FIDO_EXT_HMAC_SECRET); | ||
378 | if (up & 1) | ||
379 | fido_assert_set_up(assert, FIDO_OPT_TRUE); | ||
380 | if (uv & 1) | ||
381 | fido_assert_set_uv(assert, FIDO_OPT_TRUE); | ||
382 | /* XXX reuse cred as hmac salt to keep struct param small */ | ||
383 | fido_assert_set_hmac_salt(assert, cred->body, cred->len); | ||
384 | |||
385 | fido_dev_get_assert(dev, assert, u2f & 1 ? NULL : pin); | ||
386 | |||
387 | fido_dev_cancel(dev); | ||
388 | fido_dev_close(dev); | ||
389 | fido_dev_free(&dev); | ||
390 | } | ||
391 | |||
392 | static void | ||
393 | verify_assert(int type, const unsigned char *cdh_ptr, size_t cdh_len, | ||
394 | const char *rp_id, const unsigned char *authdata_ptr, size_t authdata_len, | ||
395 | const unsigned char *sig_ptr, size_t sig_len, uint8_t up, uint8_t uv, | ||
396 | int ext, void *pk) | ||
397 | { | ||
398 | fido_assert_t *assert = NULL; | ||
399 | |||
400 | if ((assert = fido_assert_new()) == NULL) | ||
401 | return; | ||
402 | |||
403 | fido_assert_set_clientdata_hash(assert, cdh_ptr, cdh_len); | ||
404 | fido_assert_set_rp(assert, rp_id); | ||
405 | fido_assert_set_count(assert, 1); | ||
406 | if (fido_assert_set_authdata(assert, 0, authdata_ptr, | ||
407 | authdata_len) != FIDO_OK) { | ||
408 | fido_assert_set_authdata_raw(assert, 0, authdata_ptr, | ||
409 | authdata_len); | ||
410 | } | ||
411 | fido_assert_set_extensions(assert, ext); | ||
412 | if (up & 1) fido_assert_set_up(assert, FIDO_OPT_TRUE); | ||
413 | if (uv & 1) fido_assert_set_uv(assert, FIDO_OPT_TRUE); | ||
414 | fido_assert_set_sig(assert, 0, sig_ptr, sig_len); | ||
415 | fido_assert_verify(assert, 0, type, pk); | ||
416 | |||
417 | fido_assert_free(&assert); | ||
418 | } | ||
419 | |||
420 | /* | ||
421 | * Do a dummy conversion to exercise rs256_pk_from_RSA(). | ||
422 | */ | ||
423 | static void | ||
424 | rs256_convert(const rs256_pk_t *k) | ||
425 | { | ||
426 | EVP_PKEY *pkey = NULL; | ||
427 | rs256_pk_t *pk = NULL; | ||
428 | RSA *rsa = NULL; | ||
429 | volatile int r; | ||
430 | |||
431 | if ((pkey = rs256_pk_to_EVP_PKEY(k)) == NULL || | ||
432 | (pk = rs256_pk_new()) == NULL || | ||
433 | (rsa = EVP_PKEY_get0_RSA(pkey)) == NULL) | ||
434 | goto out; | ||
435 | |||
436 | r = rs256_pk_from_RSA(pk, rsa); | ||
437 | out: | ||
438 | if (pk) | ||
439 | rs256_pk_free(&pk); | ||
440 | if (pkey) | ||
441 | EVP_PKEY_free(pkey); | ||
442 | } | ||
443 | |||
444 | /* | ||
445 | * Do a dummy conversion to exercise eddsa_pk_from_EVP_PKEY(). | ||
446 | */ | ||
447 | static void | ||
448 | eddsa_convert(const eddsa_pk_t *k) | ||
449 | { | ||
450 | EVP_PKEY *pkey = NULL; | ||
451 | eddsa_pk_t *pk = NULL; | ||
452 | volatile int r; | ||
453 | |||
454 | if ((pkey = eddsa_pk_to_EVP_PKEY(k)) == NULL || | ||
455 | (pk = eddsa_pk_new()) == NULL) | ||
456 | goto out; | ||
457 | |||
458 | r = eddsa_pk_from_EVP_PKEY(pk, pkey); | ||
459 | out: | ||
460 | if (pk) | ||
461 | eddsa_pk_free(&pk); | ||
462 | if (pkey) | ||
463 | EVP_PKEY_free(pkey); | ||
464 | } | ||
465 | |||
466 | int | ||
467 | LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) | ||
468 | { | ||
469 | struct param p; | ||
470 | fido_assert_t *assert = NULL; | ||
471 | es256_pk_t *es256_pk = NULL; | ||
472 | rs256_pk_t *rs256_pk = NULL; | ||
473 | eddsa_pk_t *eddsa_pk = NULL; | ||
474 | uint8_t flags; | ||
475 | uint32_t sigcount; | ||
476 | int cose_alg = 0; | ||
477 | void *pk; | ||
478 | |||
479 | memset(&p, 0, sizeof(p)); | ||
480 | |||
481 | if (unpack(data, size, &p) < 0) | ||
482 | return (0); | ||
483 | |||
484 | srandom((unsigned int)p.seed); | ||
485 | |||
486 | fido_init(0); | ||
487 | |||
488 | switch (p.type & 3) { | ||
489 | case 0: | ||
490 | cose_alg = COSE_ES256; | ||
491 | |||
492 | if ((es256_pk = es256_pk_new()) == NULL) | ||
493 | return (0); | ||
494 | |||
495 | es256_pk_from_ptr(es256_pk, p.es256.body, p.es256.len); | ||
496 | pk = es256_pk; | ||
497 | |||
498 | break; | ||
499 | case 1: | ||
500 | cose_alg = COSE_RS256; | ||
501 | |||
502 | if ((rs256_pk = rs256_pk_new()) == NULL) | ||
503 | return (0); | ||
504 | |||
505 | rs256_pk_from_ptr(rs256_pk, p.rs256.body, p.rs256.len); | ||
506 | pk = rs256_pk; | ||
507 | |||
508 | rs256_convert(pk); | ||
509 | |||
510 | break; | ||
511 | default: | ||
512 | cose_alg = COSE_EDDSA; | ||
513 | |||
514 | if ((eddsa_pk = eddsa_pk_new()) == NULL) | ||
515 | return (0); | ||
516 | |||
517 | eddsa_pk_from_ptr(eddsa_pk, p.eddsa.body, p.eddsa.len); | ||
518 | pk = eddsa_pk; | ||
519 | |||
520 | eddsa_convert(pk); | ||
521 | |||
522 | break; | ||
523 | } | ||
524 | |||
525 | if ((assert = fido_assert_new()) == NULL) | ||
526 | goto out; | ||
527 | |||
528 | set_wire_data(p.wire_data.body, p.wire_data.len); | ||
529 | |||
530 | get_assert(assert, p.u2f, &p.cdh, p.rp_id, p.ext, p.up, p.uv, p.pin, | ||
531 | p.cred_count, &p.cred); | ||
532 | |||
533 | /* XXX +1 on purpose */ | ||
534 | for (size_t i = 0; i <= fido_assert_count(assert); i++) { | ||
535 | verify_assert(cose_alg, | ||
536 | fido_assert_clientdata_hash_ptr(assert), | ||
537 | fido_assert_clientdata_hash_len(assert), | ||
538 | fido_assert_rp_id(assert), | ||
539 | fido_assert_authdata_ptr(assert, i), | ||
540 | fido_assert_authdata_len(assert, i), | ||
541 | fido_assert_sig_ptr(assert, i), | ||
542 | fido_assert_sig_len(assert, i), p.up, p.uv, p.ext, pk); | ||
543 | consume(fido_assert_id_ptr(assert, i), | ||
544 | fido_assert_id_len(assert, i)); | ||
545 | consume(fido_assert_user_id_ptr(assert, i), | ||
546 | fido_assert_user_id_len(assert, i)); | ||
547 | consume(fido_assert_hmac_secret_ptr(assert, i), | ||
548 | fido_assert_hmac_secret_len(assert, i)); | ||
549 | consume(fido_assert_user_icon(assert, i), | ||
550 | xstrlen(fido_assert_user_icon(assert, i))); | ||
551 | consume(fido_assert_user_name(assert, i), | ||
552 | xstrlen(fido_assert_user_name(assert, i))); | ||
553 | consume(fido_assert_user_display_name(assert, i), | ||
554 | xstrlen(fido_assert_user_display_name(assert, i))); | ||
555 | flags = fido_assert_flags(assert, i); | ||
556 | consume(&flags, sizeof(flags)); | ||
557 | sigcount = fido_assert_sigcount(assert, i); | ||
558 | consume(&sigcount, sizeof(sigcount)); | ||
559 | } | ||
560 | |||
561 | out: | ||
562 | es256_pk_free(&es256_pk); | ||
563 | rs256_pk_free(&rs256_pk); | ||
564 | eddsa_pk_free(&eddsa_pk); | ||
565 | |||
566 | fido_assert_free(&assert); | ||
567 | |||
568 | return (0); | ||
569 | } | ||
570 | |||
571 | static size_t | ||
572 | pack_dummy(uint8_t *ptr, size_t len) | ||
573 | { | ||
574 | struct param dummy; | ||
575 | uint8_t blob[16384]; | ||
576 | size_t blob_len; | ||
577 | |||
578 | memset(&dummy, 0, sizeof(dummy)); | ||
579 | |||
580 | dummy.type = 1; | ||
581 | dummy.ext = FIDO_EXT_HMAC_SECRET; | ||
582 | |||
583 | strlcpy(dummy.pin, dummy_pin, sizeof(dummy.pin)); | ||
584 | strlcpy(dummy.rp_id, dummy_rp_id, sizeof(dummy.rp_id)); | ||
585 | |||
586 | dummy.cdh.len = sizeof(dummy_cdh); | ||
587 | dummy.es256.len = sizeof(dummy_es256); | ||
588 | dummy.rs256.len = sizeof(dummy_rs256); | ||
589 | dummy.eddsa.len = sizeof(dummy_eddsa); | ||
590 | dummy.wire_data.len = sizeof(dummy_wire_data_fido); | ||
591 | |||
592 | memcpy(&dummy.cdh.body, &dummy_cdh, dummy.cdh.len); | ||
593 | memcpy(&dummy.wire_data.body, &dummy_wire_data_fido, | ||
594 | dummy.wire_data.len); | ||
595 | memcpy(&dummy.es256.body, &dummy_es256, dummy.es256.len); | ||
596 | memcpy(&dummy.rs256.body, &dummy_rs256, dummy.rs256.len); | ||
597 | memcpy(&dummy.eddsa.body, &dummy_eddsa, dummy.eddsa.len); | ||
598 | |||
599 | blob_len = pack(blob, sizeof(blob), &dummy); | ||
600 | assert(blob_len != 0); | ||
601 | |||
602 | if (blob_len > len) { | ||
603 | memcpy(ptr, blob, len); | ||
604 | return (len); | ||
605 | } | ||
606 | |||
607 | memcpy(ptr, blob, blob_len); | ||
608 | |||
609 | return (blob_len); | ||
610 | } | ||
611 | |||
612 | size_t | ||
613 | LLVMFuzzerCustomMutator(uint8_t *data, size_t size, size_t maxsize, | ||
614 | unsigned int seed) NO_MSAN | ||
615 | { | ||
616 | struct param p; | ||
617 | uint8_t blob[16384]; | ||
618 | size_t blob_len; | ||
619 | |||
620 | (void)seed; | ||
621 | |||
622 | memset(&p, 0, sizeof(p)); | ||
623 | |||
624 | if (unpack(data, size, &p) < 0) | ||
625 | return (pack_dummy(data, maxsize)); | ||
626 | |||
627 | mutate_byte(&p.uv); | ||
628 | mutate_byte(&p.up); | ||
629 | mutate_byte(&p.u2f); | ||
630 | mutate_byte(&p.type); | ||
631 | mutate_byte(&p.cred_count); | ||
632 | |||
633 | mutate_int(&p.ext); | ||
634 | p.seed = (int)seed; | ||
635 | |||
636 | if (p.u2f & 1) { | ||
637 | p.wire_data.len = sizeof(dummy_wire_data_u2f); | ||
638 | memcpy(&p.wire_data.body, &dummy_wire_data_u2f, | ||
639 | p.wire_data.len); | ||
640 | } else { | ||
641 | p.wire_data.len = sizeof(dummy_wire_data_fido); | ||
642 | memcpy(&p.wire_data.body, &dummy_wire_data_fido, | ||
643 | p.wire_data.len); | ||
644 | } | ||
645 | |||
646 | mutate_blob(&p.wire_data); | ||
647 | mutate_blob(&p.rs256); | ||
648 | mutate_blob(&p.es256); | ||
649 | mutate_blob(&p.eddsa); | ||
650 | mutate_blob(&p.cred); | ||
651 | mutate_blob(&p.cdh); | ||
652 | |||
653 | mutate_string(p.rp_id); | ||
654 | mutate_string(p.pin); | ||
655 | |||
656 | blob_len = pack(blob, sizeof(blob), &p); | ||
657 | |||
658 | if (blob_len == 0 || blob_len > maxsize) | ||
659 | return (0); | ||
660 | |||
661 | memcpy(data, blob, blob_len); | ||
662 | |||
663 | return (blob_len); | ||
664 | } | ||