Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright (c) 2018 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 | | #ifndef _EXTERN_H |
8 | | #define _EXTERN_H |
9 | | |
10 | | #ifdef __MINGW32__ |
11 | | #include <sys/types.h> |
12 | | #endif |
13 | | |
14 | | #ifdef HAVE_SIGNAL_H |
15 | | #include <signal.h> |
16 | | #endif |
17 | | |
18 | | #include <stdint.h> |
19 | | |
20 | | #include "fido/types.h" |
21 | | #include "blob.h" |
22 | | |
23 | | #ifdef __cplusplus |
24 | | extern "C" { |
25 | | #endif /* __cplusplus */ |
26 | | |
27 | | /* aes256 */ |
28 | | int aes256_cbc_dec(const fido_dev_t *dev, const fido_blob_t *, |
29 | | const fido_blob_t *, fido_blob_t *); |
30 | | int aes256_cbc_enc(const fido_dev_t *dev, const fido_blob_t *, |
31 | | const fido_blob_t *, fido_blob_t *); |
32 | | int aes256_gcm_dec(const fido_blob_t *, const fido_blob_t *, |
33 | | const fido_blob_t *, const fido_blob_t *, fido_blob_t *); |
34 | | int aes256_gcm_enc(const fido_blob_t *, const fido_blob_t *, |
35 | | const fido_blob_t *, const fido_blob_t *, fido_blob_t *); |
36 | | |
37 | | /* cbor encoding functions */ |
38 | | cbor_item_t *cbor_build_uint(const uint64_t); |
39 | | cbor_item_t *cbor_flatten_vector(cbor_item_t **, size_t); |
40 | | cbor_item_t *cbor_encode_assert_opt(fido_opt_t, fido_opt_t); |
41 | | cbor_item_t *cbor_encode_change_pin_auth(const fido_dev_t *, |
42 | | const fido_blob_t *, const fido_blob_t *, const fido_blob_t *); |
43 | | cbor_item_t *cbor_encode_cred_ext(const fido_cred_ext_t *, const fido_blob_t *); |
44 | | cbor_item_t *cbor_encode_assert_ext(fido_dev_t *, |
45 | | const fido_assert_ext_t *, const fido_blob_t *, const es256_pk_t *); |
46 | | cbor_item_t *cbor_encode_cred_opt(fido_opt_t, fido_opt_t); |
47 | | cbor_item_t *cbor_encode_pin_auth(const fido_dev_t *, const fido_blob_t *, |
48 | | const fido_blob_t *); |
49 | | cbor_item_t *cbor_encode_pin_opt(const fido_dev_t *); |
50 | | cbor_item_t *cbor_encode_pubkey(const fido_blob_t *); |
51 | | cbor_item_t *cbor_encode_pubkey_list(const fido_blob_array_t *); |
52 | | cbor_item_t *cbor_encode_pubkey_param(int); |
53 | | cbor_item_t *cbor_encode_rp_entity(const fido_rp_t *); |
54 | | cbor_item_t *cbor_encode_user_entity(const fido_user_t *); |
55 | | cbor_item_t *es256_pk_encode(const es256_pk_t *, int); |
56 | | |
57 | | /* cbor decoding functions */ |
58 | | int cbor_decode_attstmt(const cbor_item_t *, fido_attstmt_t *); |
59 | | int cbor_decode_cred_authdata(const cbor_item_t *, int, fido_blob_t *, |
60 | | fido_authdata_t *, fido_attcred_t *, fido_cred_ext_t *); |
61 | | int cbor_decode_assert_authdata(const cbor_item_t *, fido_blob_t *, |
62 | | fido_authdata_t *, fido_assert_extattr_t *); |
63 | | int cbor_decode_cred_id(const cbor_item_t *, fido_blob_t *); |
64 | | int cbor_decode_fmt(const cbor_item_t *, char **); |
65 | | int cbor_decode_pubkey(const cbor_item_t *, int *, void *); |
66 | | int cbor_decode_rp_entity(const cbor_item_t *, fido_rp_t *); |
67 | | int cbor_decode_uint64(const cbor_item_t *, uint64_t *); |
68 | | int cbor_decode_user(const cbor_item_t *, fido_user_t *); |
69 | | int es256_pk_decode(const cbor_item_t *, es256_pk_t *); |
70 | | int rs256_pk_decode(const cbor_item_t *, rs256_pk_t *); |
71 | | int eddsa_pk_decode(const cbor_item_t *, eddsa_pk_t *); |
72 | | |
73 | | /* auxiliary cbor routines */ |
74 | | int cbor_add_bool(cbor_item_t *, const char *, fido_opt_t); |
75 | | int cbor_add_bytestring(cbor_item_t *, const char *, const unsigned char *, |
76 | | size_t); |
77 | | int cbor_add_string(cbor_item_t *, const char *, const char *); |
78 | | int cbor_array_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *, |
79 | | void *)); |
80 | | int cbor_build_frame(uint8_t, cbor_item_t *[], size_t, fido_blob_t *); |
81 | | int cbor_bytestring_copy(const cbor_item_t *, unsigned char **, size_t *); |
82 | | int cbor_map_iter(const cbor_item_t *, void *, int(*)(const cbor_item_t *, |
83 | | const cbor_item_t *, void *)); |
84 | | int cbor_string_copy(const cbor_item_t *, char **); |
85 | | int cbor_parse_reply(const unsigned char *, size_t, void *, |
86 | | int(*)(const cbor_item_t *, const cbor_item_t *, void *)); |
87 | | int cbor_add_uv_params(fido_dev_t *, uint8_t, const fido_blob_t *, |
88 | | const es256_pk_t *, const fido_blob_t *, const char *, const char *, |
89 | | cbor_item_t **, cbor_item_t **); |
90 | | void cbor_vector_free(cbor_item_t **, size_t); |
91 | | int cbor_array_append(cbor_item_t **, cbor_item_t *); |
92 | | int cbor_array_drop(cbor_item_t **, size_t); |
93 | | |
94 | | /* deflate */ |
95 | | int fido_compress(fido_blob_t *, const fido_blob_t *); |
96 | | int fido_uncompress(fido_blob_t *, const fido_blob_t *, size_t); |
97 | | |
98 | | #ifndef nitems |
99 | 42.8k | #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) |
100 | | #endif |
101 | | |
102 | | /* buf */ |
103 | | int fido_buf_read(const unsigned char **, size_t *, void *, size_t); |
104 | | int fido_buf_write(unsigned char **, size_t *, const void *, size_t); |
105 | | |
106 | | /* hid i/o */ |
107 | | void *fido_hid_open(const char *); |
108 | | void fido_hid_close(void *); |
109 | | int fido_hid_read(void *, unsigned char *, size_t, int); |
110 | | int fido_hid_write(void *, const unsigned char *, size_t); |
111 | | int fido_hid_get_usage(const uint8_t *, size_t, uint32_t *); |
112 | | int fido_hid_get_report_len(const uint8_t *, size_t, size_t *, size_t *); |
113 | | int fido_hid_unix_open(const char *); |
114 | | int fido_hid_unix_wait(int, int, const fido_sigset_t *); |
115 | | int fido_hid_set_sigmask(void *, const fido_sigset_t *); |
116 | | size_t fido_hid_report_in_len(void *); |
117 | | size_t fido_hid_report_out_len(void *); |
118 | | |
119 | | /* nfc i/o */ |
120 | | void *fido_nfc_open(const char *); |
121 | | void fido_nfc_close(void *); |
122 | | int fido_nfc_read(void *, unsigned char *, size_t, int); |
123 | | int fido_nfc_write(void *, const unsigned char *, size_t); |
124 | | int fido_nfc_rx(fido_dev_t *, uint8_t, unsigned char *, size_t, int); |
125 | | int fido_nfc_tx(fido_dev_t *, uint8_t, const unsigned char *, size_t); |
126 | | int fido_nfc_set_sigmask(void *, const fido_sigset_t *); |
127 | | |
128 | | /* windows hello */ |
129 | | int fido_winhello_manifest(fido_dev_info_t *, size_t, size_t *); |
130 | | int fido_winhello_open(fido_dev_t *); |
131 | | int fido_winhello_close(fido_dev_t *); |
132 | | int fido_winhello_cancel(fido_dev_t *); |
133 | | int fido_winhello_get_assert(fido_dev_t *, fido_assert_t *, const char *); |
134 | | int fido_winhello_get_cbor_info(fido_dev_t *, fido_cbor_info_t *); |
135 | | int fido_winhello_make_cred(fido_dev_t *, fido_cred_t *, const char *); |
136 | | |
137 | | /* generic i/o */ |
138 | | int fido_rx_cbor_status(fido_dev_t *, int); |
139 | | int fido_rx(fido_dev_t *, uint8_t, void *, size_t, int); |
140 | | int fido_tx(fido_dev_t *, uint8_t, const void *, size_t); |
141 | | |
142 | | /* log */ |
143 | | #ifdef FIDO_NO_DIAGNOSTIC |
144 | | #define fido_log_init(...) do { /* nothing */ } while (0) |
145 | | #define fido_log_debug(...) do { /* nothing */ } while (0) |
146 | | #define fido_log_xxd(...) do { /* nothing */ } while (0) |
147 | | #define fido_log_error(...) do { /* nothing */ } while (0) |
148 | | #else |
149 | | #ifdef __GNUC__ |
150 | | void fido_log_init(void); |
151 | | void fido_log_debug(const char *, ...) |
152 | | __attribute__((__format__ (printf, 1, 2))); |
153 | | void fido_log_xxd(const void *, size_t, const char *, ...) |
154 | | __attribute__((__format__ (printf, 3, 4))); |
155 | | void fido_log_error(int, const char *, ...) |
156 | | __attribute__((__format__ (printf, 2, 3))); |
157 | | #else |
158 | | void fido_log_init(void); |
159 | | void fido_log_debug(const char *, ...); |
160 | | void fido_log_xxd(const void *, size_t, const char *, ...); |
161 | | void fido_log_error(int, const char *, ...); |
162 | | #endif /* __GNUC__ */ |
163 | | #endif /* FIDO_NO_DIAGNOSTIC */ |
164 | | |
165 | | /* u2f */ |
166 | | int u2f_register(fido_dev_t *, fido_cred_t *, int); |
167 | | int u2f_authenticate(fido_dev_t *, fido_assert_t *, int); |
168 | | int u2f_get_touch_begin(fido_dev_t *); |
169 | | int u2f_get_touch_status(fido_dev_t *, int *, int); |
170 | | |
171 | | /* unexposed fido ops */ |
172 | | uint8_t fido_dev_get_pin_protocol(const fido_dev_t *); |
173 | | int fido_dev_authkey(fido_dev_t *, es256_pk_t *); |
174 | | int fido_dev_get_cbor_info_wait(fido_dev_t *, fido_cbor_info_t *, int); |
175 | | int fido_dev_get_uv_token(fido_dev_t *, uint8_t, const char *, |
176 | | const fido_blob_t *, const es256_pk_t *, const char *, fido_blob_t *); |
177 | | uint64_t fido_dev_maxmsgsize(const fido_dev_t *); |
178 | | int fido_do_ecdh(fido_dev_t *, es256_pk_t **, fido_blob_t **); |
179 | | bool fido_dev_supports_permissions(const fido_dev_t *); |
180 | | |
181 | | /* misc */ |
182 | | void fido_assert_reset_rx(fido_assert_t *); |
183 | | void fido_assert_reset_tx(fido_assert_t *); |
184 | | void fido_cred_reset_rx(fido_cred_t *); |
185 | | void fido_cred_reset_tx(fido_cred_t *); |
186 | | void fido_cbor_info_reset(fido_cbor_info_t *); |
187 | | int fido_blob_serialise(fido_blob_t *, const cbor_item_t *); |
188 | | int fido_check_flags(uint8_t, fido_opt_t, fido_opt_t); |
189 | | int fido_check_rp_id(const char *, const unsigned char *); |
190 | | int fido_get_random(void *, size_t); |
191 | | int fido_sha256(fido_blob_t *, const u_char *, size_t); |
192 | | |
193 | | /* crypto */ |
194 | | int fido_verify_sig_es256(const fido_blob_t *, const es256_pk_t *, |
195 | | const fido_blob_t *); |
196 | | int fido_verify_sig_rs256(const fido_blob_t *, const rs256_pk_t *, |
197 | | const fido_blob_t *); |
198 | | int fido_verify_sig_eddsa(const fido_blob_t *, const eddsa_pk_t *, |
199 | | const fido_blob_t *); |
200 | | int fido_get_signed_hash(int, fido_blob_t *, const fido_blob_t *, |
201 | | const fido_blob_t *); |
202 | | |
203 | | /* device manifest functions */ |
204 | | int fido_hid_manifest(fido_dev_info_t *, size_t, size_t *); |
205 | | int fido_nfc_manifest(fido_dev_info_t *, size_t, size_t *); |
206 | | |
207 | | /* device manifest registration */ |
208 | | typedef int (*dev_manifest_func_t)(fido_dev_info_t *, size_t, size_t *); |
209 | | int fido_dev_register_manifest_func(const dev_manifest_func_t); |
210 | | void fido_dev_unregister_manifest_func(const dev_manifest_func_t); |
211 | | |
212 | | /* fuzzing instrumentation */ |
213 | | #ifdef FIDO_FUZZ |
214 | | uint32_t uniform_random(uint32_t); |
215 | | #endif |
216 | | |
217 | | /* internal device capability flags */ |
218 | 5.63k | #define FIDO_DEV_PIN_SET 0x001 |
219 | 8.40k | #define FIDO_DEV_PIN_UNSET 0x002 |
220 | 6.35k | #define FIDO_DEV_CRED_PROT 0x004 |
221 | 5.88k | #define FIDO_DEV_CREDMAN 0x008 |
222 | 28.2k | #define FIDO_DEV_PIN_PROTOCOL1 0x010 |
223 | 25.2k | #define FIDO_DEV_PIN_PROTOCOL2 0x020 |
224 | 5.63k | #define FIDO_DEV_UV_SET 0x040 |
225 | 3.06k | #define FIDO_DEV_UV_UNSET 0x080 |
226 | 4.83k | #define FIDO_DEV_TOKEN_PERMS 0x100 |
227 | 0 | #define FIDO_DEV_WINHELLO 0x200 |
228 | | |
229 | | /* miscellanea */ |
230 | 3.32k | #define FIDO_DUMMY_CLIENTDATA "" |
231 | 1.75k | #define FIDO_DUMMY_RP_ID "localhost" |
232 | 149 | #define FIDO_DUMMY_USER_NAME "dummy" |
233 | 1.72k | #define FIDO_DUMMY_USER_ID 1 |
234 | | #define FIDO_WINHELLO_PATH "windows://hello" |
235 | | |
236 | | #ifdef __cplusplus |
237 | | } /* extern "C" */ |
238 | | #endif /* __cplusplus */ |
239 | | |
240 | | #endif /* !_EXTERN_H */ |