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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
/*
* Copyright (c) 2018-2022 Yubico AB. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef _EXTERN_H
#define _EXTERN_H
#ifdef __MINGW32__
#include <sys/types.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#include <stdint.h>
#include "fido/types.h"
#include "blob.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* aes256 */
int aes256_cbc_dec(const fido_dev_t *dev, const fido_blob_t *,
const fido_blob_t *, fido_blob_t *);
int aes256_cbc_enc(const fido_dev_t *dev, const fido_blob_t *,
const fido_blob_t *, fido_blob_t *);
int aes256_gcm_dec(const fido_blob_t *, const fido_blob_t *,
const fido_blob_t *, const fido_blob_t *, fido_blob_t *);
int aes256_gcm_enc(const fido_blob_t *, const fido_blob_t *,
const fido_blob_t *, const fido_blob_t *, fido_blob_t *);
/* cbor encoding functions */
cbor_item_t *cbor_build_uint(const uint64_t);
cbor_item_t *cbor_flatten_vector(cbor_item_t **, size_t);
cbor_item_t *cbor_encode_assert_opt(fido_opt_t, fido_opt_t);
cbor_item_t *cbor_encode_change_pin_auth(const fido_dev_t *,
const fido_blob_t *, const fido_blob_t *, const fido_blob_t *);
cbor_item_t *cbor_encode_cred_ext(const fido_cred_ext_t *, const fido_blob_t *);
cbor_item_t *cbor_encode_assert_ext(fido_dev_t *,
const fido_assert_ext_t *, const fido_blob_t *, const es256_pk_t *);
cbor_item_t *cbor_encode_cred_opt(fido_opt_t, fido_opt_t);
cbor_item_t *cbor_encode_pin_auth(const fido_dev_t *, const fido_blob_t *,
const fido_blob_t *);
cbor_item_t *cbor_encode_pin_opt(const fido_dev_t *);
cbor_item_t *cbor_encode_pubkey(const fido_blob_t *);
cbor_item_t *cbor_encode_pubkey_list(const fido_blob_array_t *);
cbor_item_t *cbor_encode_pubkey_param(int);
cbor_item_t *cbor_encode_rp_entity(const fido_rp_t *);
cbor_item_t *cbor_encode_str_array(const fido_str_array_t *);
cbor_item_t *cbor_encode_user_entity(const fido_user_t *);
cbor_item_t *es256_pk_encode(const es256_pk_t *, int);
/* cbor decoding functions */
int cbor_decode_attstmt(const cbor_item_t *, fido_attstmt_t *);
int cbor_decode_attobj(const cbor_item_t *, fido_cred_t *);
int cbor_decode_bool(const cbor_item_t *, bool *);
int cbor_decode_cred_authdata(const cbor_item_t *, int, fido_blob_t *,
fido_authdata_t *, fido_attcred_t *, fido_cred_ext_t *);
int cbor_decode_assert_authdata(const cbor_item_t *, fido_blob_t *,
fido_authdata_t *, fido_assert_extattr_t *);
int cbor_decode_cred_id(const cbor_item_t *, fido_blob_t *);
int cbor_decode_fmt(const cbor_item_t *, char **);
int cbor_decode_pubkey(const cbor_item_t *, int *, void *);
int cbor_decode_rp_entity(const cbor_item_t *, fido_rp_t *);
int cbor_decode_uint64(const cbor_item_t *, uint64_t *);
int cbor_decode_user(const cbor_item_t *, fido_user_t *);
int es256_pk_decode(const cbor_item_t *, es256_pk_t *);
int es384_pk_decode(const cbor_item_t *, es384_pk_t *);
int rs256_pk_decode(const cbor_item_t *, rs256_pk_t *);
int eddsa_pk_decode(const cbor_item_t *, eddsa_pk_t *);
/* auxiliary cbor routines */
int cbor_add_bool(cbor_item_t *, const char *, fido_opt_t);
int cbor_add_bytestring(cbor_item_t *, const char *, const unsigned char *,
size_t);
int cbor_add_string(cbor_item_t *, const char *, const char *);
int cbor_array_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *,
void *));
int cbor_build_frame(uint8_t, cbor_item_t *[], size_t, fido_blob_t *);
int cbor_bytestring_copy(const cbor_item_t *, unsigned char **, size_t *);
int cbor_map_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *,
const cbor_item_t *, void *));
int cbor_string_copy(const cbor_item_t *, char **);
int cbor_parse_reply(const unsigned char *, size_t, void *,
int(*)(const cbor_item_t *, const cbor_item_t *, void *));
int cbor_add_uv_params(fido_dev_t *, uint8_t, const fido_blob_t *,
const es256_pk_t *, const fido_blob_t *, const char *, const char *,
cbor_item_t **, cbor_item_t **, int *);
void cbor_vector_free(cbor_item_t **, size_t);
int cbor_array_append(cbor_item_t **, cbor_item_t *);
int cbor_array_drop(cbor_item_t **, size_t);
/* deflate */
int fido_compress(fido_blob_t *, const fido_blob_t *);
int fido_uncompress(fido_blob_t *, const fido_blob_t *, size_t);
#ifndef nitems
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
#endif
/* buf */
int fido_buf_read(const unsigned char **, size_t *, void *, size_t);
int fido_buf_write(unsigned char **, size_t *, const void *, size_t);
/* hid i/o */
void *fido_hid_open(const char *);
void fido_hid_close(void *);
int fido_hid_read(void *, unsigned char *, size_t, int);
int fido_hid_write(void *, const unsigned char *, size_t);
int fido_hid_get_usage(const uint8_t *, size_t, uint32_t *);
int fido_hid_get_report_len(const uint8_t *, size_t, size_t *, size_t *);
int fido_hid_unix_open(const char *);
int fido_hid_unix_wait(int, int, const fido_sigset_t *);
int fido_hid_set_sigmask(void *, const fido_sigset_t *);
size_t fido_hid_report_in_len(void *);
size_t fido_hid_report_out_len(void *);
/* nfc i/o */
bool fido_is_nfc(const char *);
bool nfc_is_fido(const char *);
void *fido_nfc_open(const char *);
void fido_nfc_close(void *);
int fido_nfc_read(void *, unsigned char *, size_t, int);
int fido_nfc_write(void *, const unsigned char *, size_t);
int fido_nfc_rx(fido_dev_t *, uint8_t, unsigned char *, size_t, int);
int fido_nfc_tx(fido_dev_t *, uint8_t, const unsigned char *, size_t);
int fido_nfc_set_sigmask(void *, const fido_sigset_t *);
int fido_dev_set_nfc(fido_dev_t *);
/* pcsc i/o */
bool fido_is_pcsc(const char *);
void *fido_pcsc_open(const char *);
void fido_pcsc_close(void *);
int fido_pcsc_read(void *, unsigned char *, size_t, int);
int fido_pcsc_write(void *, const unsigned char *, size_t);
int fido_pcsc_rx(fido_dev_t *, uint8_t, unsigned char *, size_t, int);
int fido_pcsc_tx(fido_dev_t *, uint8_t, const unsigned char *, size_t);
int fido_dev_set_pcsc(fido_dev_t *);
/* windows hello */
int fido_winhello_manifest(fido_dev_info_t *, size_t, size_t *);
int fido_winhello_open(fido_dev_t *);
int fido_winhello_close(fido_dev_t *);
int fido_winhello_cancel(fido_dev_t *);
int fido_winhello_get_assert(fido_dev_t *, fido_assert_t *, const char *, int);
int fido_winhello_get_cbor_info(fido_dev_t *, fido_cbor_info_t *);
int fido_winhello_make_cred(fido_dev_t *, fido_cred_t *, const char *, int);
/* generic i/o */
int fido_rx_cbor_status(fido_dev_t *, int *);
int fido_rx(fido_dev_t *, uint8_t, void *, size_t, int *);
int fido_tx(fido_dev_t *, uint8_t, const void *, size_t, int *);
/* log */
#ifdef FIDO_NO_DIAGNOSTIC
#define fido_log_init(...) do { /* nothing */ } while (0)
#define fido_log_debug(...) do { /* nothing */ } while (0)
#define fido_log_xxd(...) do { /* nothing */ } while (0)
#define fido_log_error(...) do { /* nothing */ } while (0)
#else
#ifdef __GNUC__
void fido_log_init(void);
void fido_log_debug(const char *, ...)
__attribute__((__format__ (printf, 1, 2)));
void fido_log_xxd(const void *, size_t, const char *, ...)
__attribute__((__format__ (printf, 3, 4)));
void fido_log_error(int, const char *, ...)
__attribute__((__format__ (printf, 2, 3)));
#else
void fido_log_init(void);
void fido_log_debug(const char *, ...);
void fido_log_xxd(const void *, size_t, const char *, ...);
void fido_log_error(int, const char *, ...);
#endif /* __GNUC__ */
#endif /* FIDO_NO_DIAGNOSTIC */
/* u2f */
int u2f_register(fido_dev_t *, fido_cred_t *, int *);
int u2f_authenticate(fido_dev_t *, fido_assert_t *, int *);
int u2f_get_touch_begin(fido_dev_t *, int *);
int u2f_get_touch_status(fido_dev_t *, int *, int *);
/* unexposed fido ops */
uint8_t fido_dev_get_pin_protocol(const fido_dev_t *);
int fido_dev_authkey(fido_dev_t *, es256_pk_t *, int *);
int fido_dev_get_cbor_info_wait(fido_dev_t *, fido_cbor_info_t *, int *);
int fido_dev_get_uv_token(fido_dev_t *, uint8_t, const char *,
const fido_blob_t *, const es256_pk_t *, const char *, fido_blob_t *,
int *);
uint64_t fido_dev_maxmsgsize(const fido_dev_t *);
int fido_do_ecdh(fido_dev_t *, es256_pk_t **, fido_blob_t **, int *);
/* types */
void fido_algo_array_free(fido_algo_array_t *);
void fido_byte_array_free(fido_byte_array_t *);
void fido_cert_array_free(fido_cert_array_t *);
void fido_opt_array_free(fido_opt_array_t *);
void fido_str_array_free(fido_str_array_t *);
void fido_algo_free(fido_algo_t *);
int fido_str_array_pack(fido_str_array_t *, const char * const *, size_t);
/* misc */
void fido_assert_reset_rx(fido_assert_t *);
void fido_assert_reset_tx(fido_assert_t *);
void fido_cred_reset_rx(fido_cred_t *);
void fido_cred_reset_tx(fido_cred_t *);
void fido_cbor_info_reset(fido_cbor_info_t *);
int fido_blob_serialise(fido_blob_t *, const cbor_item_t *);
int fido_check_flags(uint8_t, fido_opt_t, fido_opt_t);
int fido_check_rp_id(const char *, const unsigned char *);
int fido_get_random(void *, size_t);
int fido_sha256(fido_blob_t *, const u_char *, size_t);
int fido_time_now(struct timespec *);
int fido_time_delta(const struct timespec *, int *);
int fido_to_uint64(const char *, int, uint64_t *);
/* crypto */
int es256_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *);
int es384_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *);
int rs256_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *);
int eddsa_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *);
int rs1_verify_sig(const fido_blob_t *, EVP_PKEY *, const fido_blob_t *);
int es256_pk_verify_sig(const fido_blob_t *, const es256_pk_t *,
const fido_blob_t *);
int es384_pk_verify_sig(const fido_blob_t *, const es384_pk_t *,
const fido_blob_t *);
int rs256_pk_verify_sig(const fido_blob_t *, const rs256_pk_t *,
const fido_blob_t *);
int eddsa_pk_verify_sig(const fido_blob_t *, const eddsa_pk_t *,
const fido_blob_t *);
int fido_get_signed_hash(int, fido_blob_t *, const fido_blob_t *,
const fido_blob_t *);
int fido_get_signed_hash_tpm(fido_blob_t *, const fido_blob_t *,
const fido_blob_t *, const fido_attstmt_t *, const fido_attcred_t *);
/* device manifest functions */
int fido_hid_manifest(fido_dev_info_t *, size_t, size_t *);
int fido_nfc_manifest(fido_dev_info_t *, size_t, size_t *);
int fido_pcsc_manifest(fido_dev_info_t *, size_t, size_t *);
/* fuzzing instrumentation */
#ifdef FIDO_FUZZ
uint32_t uniform_random(uint32_t);
#endif
/* internal device capability flags */
#define FIDO_DEV_PIN_SET 0x0001
#define FIDO_DEV_PIN_UNSET 0x0002
#define FIDO_DEV_CRED_PROT 0x0004
#define FIDO_DEV_CREDMAN 0x0008
#define FIDO_DEV_PIN_PROTOCOL1 0x0010
#define FIDO_DEV_PIN_PROTOCOL2 0x0020
#define FIDO_DEV_UV_SET 0x0040
#define FIDO_DEV_UV_UNSET 0x0080
#define FIDO_DEV_TOKEN_PERMS 0x0100
#define FIDO_DEV_WINHELLO 0x0200
#define FIDO_DEV_CREDMAN_PRE 0x0400
#define FIDO_DEV_BIO_SET 0x0800
#define FIDO_DEV_BIO_UNSET 0x1000
/* miscellanea */
#define FIDO_DUMMY_CLIENTDATA ""
#define FIDO_DUMMY_RP_ID "localhost"
#define FIDO_DUMMY_USER_NAME "dummy"
#define FIDO_DUMMY_USER_ID 1
#define FIDO_WINHELLO_PATH "windows://hello"
#define FIDO_NFC_PREFIX "nfc:"
#define FIDO_PCSC_PREFIX "pcsc:"
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* !_EXTERN_H */
|
