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 | | #include <openssl/sha.h> |
8 | | #include "fido.h" |
9 | | |
10 | | #ifndef TLS |
11 | | #define TLS |
12 | | #endif |
13 | | |
14 | | typedef struct dev_manifest_func_node { |
15 | | dev_manifest_func_t manifest_func; |
16 | | struct dev_manifest_func_node *next; |
17 | | } dev_manifest_func_node_t; |
18 | | |
19 | | static TLS dev_manifest_func_node_t *manifest_funcs = NULL; |
20 | | static TLS bool disable_u2f_fallback; |
21 | | |
22 | | static void |
23 | | find_manifest_func_node(dev_manifest_func_t f, dev_manifest_func_node_t **curr, |
24 | | dev_manifest_func_node_t **prev) |
25 | 0 | { |
26 | 0 | *prev = NULL; |
27 | 0 | *curr = manifest_funcs; |
28 | 0 |
|
29 | 0 | while (*curr != NULL && (*curr)->manifest_func != f) { |
30 | 0 | *prev = *curr; |
31 | 0 | *curr = (*curr)->next; |
32 | 0 | } |
33 | 0 | } |
34 | | |
35 | | #ifdef FIDO_FUZZ |
36 | | static void |
37 | | set_random_report_len(fido_dev_t *dev) |
38 | 45.5k | { |
39 | 45.5k | dev->rx_len = CTAP_MIN_REPORT_LEN + |
40 | 45.5k | uniform_random(CTAP_MAX_REPORT_LEN - CTAP_MIN_REPORT_LEN + 1); |
41 | 45.5k | dev->tx_len = CTAP_MIN_REPORT_LEN + |
42 | 45.5k | uniform_random(CTAP_MAX_REPORT_LEN - CTAP_MIN_REPORT_LEN + 1); |
43 | 45.5k | } |
44 | | #endif |
45 | | |
46 | | static void |
47 | | fido_dev_set_extension_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
48 | 6.50k | { |
49 | 6.50k | char * const *ptr = fido_cbor_info_extensions_ptr(info); |
50 | 6.50k | size_t len = fido_cbor_info_extensions_len(info); |
51 | 6.50k | |
52 | 19.6k | for (size_t i = 0; i < len; i++) |
53 | 13.1k | if (strcmp(ptr[i], "credProtect") == 0) |
54 | 3.03k | dev->flags |= FIDO_DEV_CRED_PROT; |
55 | 6.50k | } |
56 | | |
57 | | static void |
58 | | fido_dev_set_option_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
59 | 6.50k | { |
60 | 6.50k | char * const *ptr = fido_cbor_info_options_name_ptr(info); |
61 | 6.50k | const bool *val = fido_cbor_info_options_value_ptr(info); |
62 | 6.50k | size_t len = fido_cbor_info_options_len(info); |
63 | 6.50k | |
64 | 38.1k | for (size_t i = 0; i < len; i++) |
65 | 31.6k | if (strcmp(ptr[i], "clientPin") == 0) { |
66 | 3.12k | dev->flags |= val[i] ? FIDO_DEV_PIN_SET : FIDO_DEV_PIN_UNSET; |
67 | 28.5k | } else if (strcmp(ptr[i], "credMgmt") == 0 || |
68 | 28.5k | strcmp(ptr[i], "credentialMgmtPreview") == 0) { |
69 | 2.47k | if (val[i]) |
70 | 2.44k | dev->flags |= FIDO_DEV_CREDMAN; |
71 | 26.0k | } else if (strcmp(ptr[i], "uv") == 0) { |
72 | 319 | dev->flags |= val[i] ? FIDO_DEV_UV_SET : FIDO_DEV_UV_UNSET; |
73 | 25.7k | } else if (strcmp(ptr[i], "pinUvAuthToken") == 0) { |
74 | 282 | if (val[i]) |
75 | 266 | dev->flags |= FIDO_DEV_TOKEN_PERMS; |
76 | 282 | } |
77 | 6.50k | } |
78 | | |
79 | | static void |
80 | | fido_dev_set_protocol_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
81 | 6.50k | { |
82 | 6.50k | const uint8_t *ptr = fido_cbor_info_protocols_ptr(info); |
83 | 6.50k | size_t len = fido_cbor_info_protocols_len(info); |
84 | 6.50k | |
85 | 13.6k | for (size_t i = 0; i < len; i++) |
86 | 7.13k | switch (ptr[i]) { |
87 | 5.61k | case CTAP_PIN_PROTOCOL1: |
88 | 5.61k | dev->flags |= FIDO_DEV_PIN_PROTOCOL1; |
89 | 5.61k | break; |
90 | 780 | case CTAP_PIN_PROTOCOL2: |
91 | 780 | dev->flags |= FIDO_DEV_PIN_PROTOCOL2; |
92 | 780 | break; |
93 | 731 | default: |
94 | 731 | fido_log_debug("%s: unknown protocol %u", __func__, |
95 | 731 | ptr[i]); |
96 | 731 | break; |
97 | 7.13k | } |
98 | 6.50k | } |
99 | | |
100 | | static void |
101 | | fido_dev_set_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
102 | 6.50k | { |
103 | 6.50k | fido_dev_set_extension_flags(dev, info); |
104 | 6.50k | fido_dev_set_option_flags(dev, info); |
105 | 6.50k | fido_dev_set_protocol_flags(dev, info); |
106 | 6.50k | } |
107 | | |
108 | | static int |
109 | | fido_dev_open_tx(fido_dev_t *dev, const char *path) |
110 | 45.5k | { |
111 | 45.5k | const uint8_t cmd = CTAP_CMD_INIT; |
112 | 45.5k | int r; |
113 | 45.5k | |
114 | 45.5k | if (dev->io_handle != NULL) { |
115 | 0 | fido_log_debug("%s: handle=%p", __func__, dev->io_handle); |
116 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
117 | 0 | } |
118 | 45.5k | |
119 | 45.5k | if (dev->io.open == NULL || dev->io.close == NULL) { |
120 | 0 | fido_log_debug("%s: NULL open/close", __func__); |
121 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
122 | 0 | } |
123 | 45.5k | |
124 | 45.5k | if (dev->cid != CTAP_CID_BROADCAST) { |
125 | 0 | fido_log_debug("%s: cid=0x%x", __func__, dev->cid); |
126 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
127 | 0 | } |
128 | 45.5k | |
129 | 45.5k | if (fido_get_random(&dev->nonce, sizeof(dev->nonce)) < 0) { |
130 | 0 | fido_log_debug("%s: fido_get_random", __func__); |
131 | 0 | return (FIDO_ERR_INTERNAL); |
132 | 0 | } |
133 | 45.5k | |
134 | 45.5k | if ((dev->io_handle = dev->io.open(path)) == NULL) { |
135 | 0 | fido_log_debug("%s: dev->io.open", __func__); |
136 | 0 | return (FIDO_ERR_INTERNAL); |
137 | 0 | } |
138 | 45.5k | |
139 | 45.5k | if (dev->io_own) { |
140 | 45.5k | dev->rx_len = CTAP_MAX_REPORT_LEN; |
141 | 45.5k | dev->tx_len = CTAP_MAX_REPORT_LEN; |
142 | 45.5k | } else { |
143 | 0 | dev->rx_len = fido_hid_report_in_len(dev->io_handle); |
144 | 0 | dev->tx_len = fido_hid_report_out_len(dev->io_handle); |
145 | 0 | } |
146 | 45.5k | |
147 | 45.5k | #ifdef FIDO_FUZZ |
148 | 45.5k | set_random_report_len(dev); |
149 | 45.5k | #endif |
150 | 45.5k | |
151 | 45.5k | if (dev->rx_len < CTAP_MIN_REPORT_LEN || |
152 | 45.5k | dev->rx_len > CTAP_MAX_REPORT_LEN) { |
153 | 0 | fido_log_debug("%s: invalid rx_len %zu", __func__, dev->rx_len); |
154 | 0 | r = FIDO_ERR_RX; |
155 | 0 | goto fail; |
156 | 0 | } |
157 | 45.5k | |
158 | 45.5k | if (dev->tx_len < CTAP_MIN_REPORT_LEN || |
159 | 45.5k | dev->tx_len > CTAP_MAX_REPORT_LEN) { |
160 | 0 | fido_log_debug("%s: invalid tx_len %zu", __func__, dev->tx_len); |
161 | 0 | r = FIDO_ERR_TX; |
162 | 0 | goto fail; |
163 | 0 | } |
164 | 45.5k | |
165 | 45.5k | if (fido_tx(dev, cmd, &dev->nonce, sizeof(dev->nonce)) < 0) { |
166 | 330 | fido_log_debug("%s: fido_tx", __func__); |
167 | 330 | r = FIDO_ERR_TX; |
168 | 330 | goto fail; |
169 | 330 | } |
170 | 45.1k | |
171 | 45.1k | return (FIDO_OK); |
172 | 330 | fail: |
173 | 330 | dev->io.close(dev->io_handle); |
174 | 330 | dev->io_handle = NULL; |
175 | 330 | |
176 | 330 | return (r); |
177 | 45.1k | } |
178 | | |
179 | | static int |
180 | | fido_dev_open_rx(fido_dev_t *dev, int ms) |
181 | 45.1k | { |
182 | 45.1k | fido_cbor_info_t *info = NULL; |
183 | 45.1k | int reply_len; |
184 | 45.1k | int r; |
185 | 45.1k | |
186 | 45.1k | if ((reply_len = fido_rx(dev, CTAP_CMD_INIT, &dev->attr, |
187 | 45.1k | sizeof(dev->attr), ms)) < 0) { |
188 | 28.1k | fido_log_debug("%s: fido_rx", __func__); |
189 | 28.1k | r = FIDO_ERR_RX; |
190 | 28.1k | goto fail; |
191 | 28.1k | } |
192 | 17.0k | |
193 | 17.0k | #ifdef FIDO_FUZZ |
194 | 17.0k | dev->attr.nonce = dev->nonce; |
195 | 17.0k | #endif |
196 | 17.0k | |
197 | 17.0k | if ((size_t)reply_len != sizeof(dev->attr) || |
198 | 17.0k | dev->attr.nonce != dev->nonce) { |
199 | 267 | fido_log_debug("%s: invalid nonce", __func__); |
200 | 267 | r = FIDO_ERR_RX; |
201 | 267 | goto fail; |
202 | 267 | } |
203 | 16.7k | |
204 | 16.7k | dev->flags = 0; |
205 | 16.7k | dev->cid = dev->attr.cid; |
206 | 16.7k | |
207 | 16.7k | if (fido_dev_is_fido2(dev)) { |
208 | 13.8k | if ((info = fido_cbor_info_new()) == NULL) { |
209 | 53 | fido_log_debug("%s: fido_cbor_info_new", __func__); |
210 | 53 | r = FIDO_ERR_INTERNAL; |
211 | 53 | goto fail; |
212 | 53 | } |
213 | 13.7k | if ((r = fido_dev_get_cbor_info_wait(dev, info, |
214 | 13.7k | ms)) != FIDO_OK) { |
215 | 7.27k | fido_log_debug("%s: fido_dev_cbor_info_wait: %d", |
216 | 7.27k | __func__, r); |
217 | 7.27k | if (disable_u2f_fallback) |
218 | 0 | goto fail; |
219 | 7.27k | fido_log_debug("%s: falling back to u2f", __func__); |
220 | 7.27k | fido_dev_force_u2f(dev); |
221 | 7.27k | } else { |
222 | 6.50k | fido_dev_set_flags(dev, info); |
223 | 6.50k | } |
224 | 13.7k | } |
225 | 16.7k | |
226 | 16.7k | if (fido_dev_is_fido2(dev) && info != NULL) { |
227 | 6.50k | dev->maxmsgsize = fido_cbor_info_maxmsgsiz(info); |
228 | 6.50k | fido_log_debug("%s: FIDO_MAXMSG=%d, maxmsgsiz=%lu", __func__, |
229 | 6.50k | FIDO_MAXMSG, (unsigned long)dev->maxmsgsize); |
230 | 6.50k | } |
231 | 16.7k | |
232 | 16.7k | r = FIDO_OK; |
233 | 45.1k | fail: |
234 | 45.1k | fido_cbor_info_free(&info); |
235 | 45.1k | |
236 | 45.1k | if (r != FIDO_OK) { |
237 | 28.4k | dev->io.close(dev->io_handle); |
238 | 28.4k | dev->io_handle = NULL; |
239 | 28.4k | } |
240 | 45.1k | |
241 | 45.1k | return (r); |
242 | 16.7k | } |
243 | | |
244 | | static int |
245 | | fido_dev_open_wait(fido_dev_t *dev, const char *path, int ms) |
246 | 45.5k | { |
247 | 45.5k | int r; |
248 | 45.5k | |
249 | 45.5k | if ((r = fido_dev_open_tx(dev, path)) != FIDO_OK || |
250 | 45.5k | (r = fido_dev_open_rx(dev, ms)) != FIDO_OK) |
251 | 45.5k | return (r); |
252 | 16.7k | |
253 | 16.7k | return (FIDO_OK); |
254 | 16.7k | } |
255 | | |
256 | | int |
257 | | fido_dev_register_manifest_func(const dev_manifest_func_t f) |
258 | 0 | { |
259 | 0 | dev_manifest_func_node_t *prev, *curr, *n; |
260 | 0 |
|
261 | 0 | find_manifest_func_node(f, &curr, &prev); |
262 | 0 | if (curr != NULL) |
263 | 0 | return (FIDO_OK); |
264 | 0 |
|
265 | 0 | if ((n = calloc(1, sizeof(*n))) == NULL) { |
266 | 0 | fido_log_debug("%s: calloc", __func__); |
267 | 0 | return (FIDO_ERR_INTERNAL); |
268 | 0 | } |
269 | 0 |
|
270 | 0 | n->manifest_func = f; |
271 | 0 | n->next = manifest_funcs; |
272 | 0 | manifest_funcs = n; |
273 | 0 |
|
274 | 0 | return (FIDO_OK); |
275 | 0 | } |
276 | | |
277 | | void |
278 | | fido_dev_unregister_manifest_func(const dev_manifest_func_t f) |
279 | 0 | { |
280 | 0 | dev_manifest_func_node_t *prev, *curr; |
281 | 0 |
|
282 | 0 | find_manifest_func_node(f, &curr, &prev); |
283 | 0 | if (curr == NULL) |
284 | 0 | return; |
285 | 0 | if (prev != NULL) |
286 | 0 | prev->next = curr->next; |
287 | 0 | else |
288 | 0 | manifest_funcs = curr->next; |
289 | 0 |
|
290 | 0 | free(curr); |
291 | 0 | } |
292 | | |
293 | | int |
294 | | fido_dev_info_manifest(fido_dev_info_t *devlist, size_t ilen, size_t *olen) |
295 | 0 | { |
296 | 0 | dev_manifest_func_node_t *curr = NULL; |
297 | 0 | dev_manifest_func_t m_func; |
298 | 0 | size_t curr_olen; |
299 | 0 | int r; |
300 | 0 |
|
301 | 0 | *olen = 0; |
302 | 0 |
|
303 | 0 | if (fido_dev_register_manifest_func(fido_hid_manifest) != FIDO_OK) |
304 | 0 | return (FIDO_ERR_INTERNAL); |
305 | 0 |
|
306 | 0 | #ifdef NFC_LINUX |
307 | 0 | if (fido_dev_register_manifest_func(fido_nfc_manifest) != FIDO_OK) |
308 | 0 | return (FIDO_ERR_INTERNAL); |
309 | 0 | #endif |
310 | 0 |
|
311 | 0 | for (curr = manifest_funcs; curr != NULL; curr = curr->next) { |
312 | 0 | curr_olen = 0; |
313 | 0 | m_func = curr->manifest_func; |
314 | 0 | r = m_func(devlist + *olen, ilen - *olen, &curr_olen); |
315 | 0 | if (r != FIDO_OK) |
316 | 0 | return (r); |
317 | 0 | *olen += curr_olen; |
318 | 0 | if (*olen == ilen) |
319 | 0 | break; |
320 | 0 | } |
321 | 0 |
|
322 | 0 | return (FIDO_OK); |
323 | 0 | } |
324 | | |
325 | | int |
326 | | fido_dev_open_with_info(fido_dev_t *dev) |
327 | 0 | { |
328 | 0 | if (dev->path == NULL) |
329 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
330 | 0 |
|
331 | 0 | return (fido_dev_open_wait(dev, dev->path, -1)); |
332 | 0 | } |
333 | | |
334 | | int |
335 | | fido_dev_open(fido_dev_t *dev, const char *path) |
336 | 45.5k | { |
337 | 45.5k | #ifdef NFC_LINUX |
338 | 45.5k | /* |
339 | 45.5k | * this is a hack to get existing applications up and running with nfc; |
340 | 45.5k | * it will *NOT* be part of a libfido2 release. to support nfc in your |
341 | 45.5k | * application, please change it to use fido_dev_open_with_info(). |
342 | 45.5k | */ |
343 | 45.5k | if (strncmp(path, "/sys", strlen("/sys")) == 0 && strlen(path) > 4 && |
344 | 45.5k | path[strlen(path) - 4] == 'n' && path[strlen(path) - 3] == 'f' && |
345 | 45.5k | path[strlen(path) - 2] == 'c') { |
346 | 0 | dev->io_own = true; |
347 | 0 | dev->io = (fido_dev_io_t) { |
348 | 0 | fido_nfc_open, |
349 | 0 | fido_nfc_close, |
350 | 0 | fido_nfc_read, |
351 | 0 | fido_nfc_write, |
352 | 0 | }; |
353 | 0 | dev->transport = (fido_dev_transport_t) { |
354 | 0 | fido_nfc_rx, |
355 | 0 | fido_nfc_tx, |
356 | 0 | }; |
357 | 0 | } |
358 | 45.5k | #endif |
359 | 45.5k | return (fido_dev_open_wait(dev, path, -1)); |
360 | 45.5k | } |
361 | | |
362 | | int |
363 | | fido_dev_close(fido_dev_t *dev) |
364 | 16.7k | { |
365 | 16.7k | if (dev->io_handle == NULL || dev->io.close == NULL) |
366 | 16.7k | return (FIDO_ERR_INVALID_ARGUMENT); |
367 | 16.7k | |
368 | 16.7k | dev->io.close(dev->io_handle); |
369 | 16.7k | dev->io_handle = NULL; |
370 | 16.7k | dev->cid = CTAP_CID_BROADCAST; |
371 | 16.7k | |
372 | 16.7k | return (FIDO_OK); |
373 | 16.7k | } |
374 | | |
375 | | int |
376 | | fido_dev_set_sigmask(fido_dev_t *dev, const fido_sigset_t *sigmask) |
377 | 0 | { |
378 | 0 | if (dev->io_own || dev->io_handle == NULL || sigmask == NULL) |
379 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
380 | 0 |
|
381 | 0 | #ifdef NFC_LINUX |
382 | 0 | if (dev->transport.rx == fido_nfc_rx) |
383 | 0 | return (fido_nfc_set_sigmask(dev->io_handle, sigmask)); |
384 | 0 | #endif |
385 | 0 | return (fido_hid_set_sigmask(dev->io_handle, sigmask)); |
386 | 0 | } |
387 | | |
388 | | int |
389 | | fido_dev_cancel(fido_dev_t *dev) |
390 | 4.59k | { |
391 | 4.59k | if (fido_dev_is_fido2(dev) == false) |
392 | 4.59k | return (FIDO_ERR_INVALID_ARGUMENT); |
393 | 1.76k | |
394 | 1.76k | if (fido_tx(dev, CTAP_CMD_CANCEL, NULL, 0) < 0) |
395 | 36 | return (FIDO_ERR_TX); |
396 | 1.72k | |
397 | 1.72k | return (FIDO_OK); |
398 | 1.72k | } |
399 | | |
400 | | int |
401 | | fido_dev_get_touch_begin(fido_dev_t *dev) |
402 | 1.55k | { |
403 | 1.55k | fido_blob_t f; |
404 | 1.55k | cbor_item_t *argv[9]; |
405 | 1.55k | const char *clientdata = FIDO_DUMMY_CLIENTDATA; |
406 | 1.55k | const uint8_t user_id = FIDO_DUMMY_USER_ID; |
407 | 1.55k | unsigned char cdh[SHA256_DIGEST_LENGTH]; |
408 | 1.55k | fido_rp_t rp; |
409 | 1.55k | fido_user_t user; |
410 | 1.55k | int r = FIDO_ERR_INTERNAL; |
411 | 1.55k | |
412 | 1.55k | memset(&f, 0, sizeof(f)); |
413 | 1.55k | memset(argv, 0, sizeof(argv)); |
414 | 1.55k | memset(cdh, 0, sizeof(cdh)); |
415 | 1.55k | memset(&rp, 0, sizeof(rp)); |
416 | 1.55k | memset(&user, 0, sizeof(user)); |
417 | 1.55k | |
418 | 1.55k | if (fido_dev_is_fido2(dev) == false) |
419 | 1.55k | return (u2f_get_touch_begin(dev)); |
420 | 138 | |
421 | 138 | if (SHA256((const void *)clientdata, strlen(clientdata), cdh) != cdh) { |
422 | 1 | fido_log_debug("%s: sha256", __func__); |
423 | 1 | return (FIDO_ERR_INTERNAL); |
424 | 1 | } |
425 | 137 | |
426 | 137 | if ((rp.id = strdup(FIDO_DUMMY_RP_ID)) == NULL || |
427 | 137 | (user.name = strdup(FIDO_DUMMY_USER_NAME)) == NULL) { |
428 | 9 | fido_log_debug("%s: strdup", __func__); |
429 | 9 | goto fail; |
430 | 9 | } |
431 | 128 | |
432 | 128 | if (fido_blob_set(&user.id, &user_id, sizeof(user_id)) < 0) { |
433 | 1 | fido_log_debug("%s: fido_blob_set", __func__); |
434 | 1 | goto fail; |
435 | 1 | } |
436 | 127 | |
437 | 127 | if ((argv[0] = cbor_build_bytestring(cdh, sizeof(cdh))) == NULL || |
438 | 127 | (argv[1] = cbor_encode_rp_entity(&rp)) == NULL || |
439 | 127 | (argv[2] = cbor_encode_user_entity(&user)) == NULL || |
440 | 127 | (argv[3] = cbor_encode_pubkey_param(COSE_ES256)) == NULL) { |
441 | 30 | fido_log_debug("%s: cbor encode", __func__); |
442 | 30 | goto fail; |
443 | 30 | } |
444 | 97 | |
445 | 97 | if (fido_dev_supports_pin(dev)) { |
446 | 94 | if ((argv[7] = cbor_new_definite_bytestring()) == NULL || |
447 | 94 | (argv[8] = cbor_encode_pin_opt(dev)) == NULL) { |
448 | 6 | fido_log_debug("%s: cbor encode", __func__); |
449 | 6 | goto fail; |
450 | 6 | } |
451 | 91 | } |
452 | 91 | |
453 | 91 | if (cbor_build_frame(CTAP_CBOR_MAKECRED, argv, nitems(argv), &f) < 0 || |
454 | 91 | fido_tx(dev, CTAP_CMD_CBOR, f.ptr, f.len) < 0) { |
455 | 13 | fido_log_debug("%s: fido_tx", __func__); |
456 | 13 | r = FIDO_ERR_TX; |
457 | 13 | goto fail; |
458 | 13 | } |
459 | 78 | |
460 | 78 | r = FIDO_OK; |
461 | 137 | fail: |
462 | 137 | cbor_vector_free(argv, nitems(argv)); |
463 | 137 | free(f.ptr); |
464 | 137 | free(rp.id); |
465 | 137 | free(user.name); |
466 | 137 | free(user.id.ptr); |
467 | 137 | |
468 | 137 | return (r); |
469 | 78 | } |
470 | | |
471 | | int |
472 | | fido_dev_get_touch_status(fido_dev_t *dev, int *touched, int ms) |
473 | 1.55k | { |
474 | 1.55k | int r; |
475 | 1.55k | |
476 | 1.55k | *touched = 0; |
477 | 1.55k | |
478 | 1.55k | if (fido_dev_is_fido2(dev) == false) |
479 | 1.55k | return (u2f_get_touch_status(dev, touched, ms)); |
480 | 138 | |
481 | 138 | switch ((r = fido_rx_cbor_status(dev, ms))) { |
482 | 45 | case FIDO_ERR_PIN_AUTH_INVALID: |
483 | 45 | case FIDO_ERR_PIN_INVALID: |
484 | 45 | case FIDO_ERR_PIN_NOT_SET: |
485 | 45 | case FIDO_ERR_SUCCESS: |
486 | 45 | *touched = 1; |
487 | 45 | break; |
488 | 45 | case FIDO_ERR_RX: |
489 | 43 | /* ignore */ |
490 | 43 | break; |
491 | 50 | default: |
492 | 50 | fido_log_debug("%s: fido_rx_cbor_status", __func__); |
493 | 50 | return (r); |
494 | 88 | } |
495 | 88 | |
496 | 88 | return (FIDO_OK); |
497 | 88 | } |
498 | | |
499 | | int |
500 | | fido_dev_set_io_functions(fido_dev_t *dev, const fido_dev_io_t *io) |
501 | 45.5k | { |
502 | 45.5k | if (dev->io_handle != NULL) { |
503 | 0 | fido_log_debug("%s: non-NULL handle", __func__); |
504 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
505 | 0 | } |
506 | 45.5k | |
507 | 45.5k | if (io == NULL || io->open == NULL || io->close == NULL || |
508 | 45.5k | io->read == NULL || io->write == NULL) { |
509 | 0 | fido_log_debug("%s: NULL function", __func__); |
510 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
511 | 0 | } |
512 | 45.5k | |
513 | 45.5k | dev->io = *io; |
514 | 45.5k | dev->io_own = true; |
515 | 45.5k | |
516 | 45.5k | return (FIDO_OK); |
517 | 45.5k | } |
518 | | |
519 | | int |
520 | | fido_dev_set_transport_functions(fido_dev_t *dev, const fido_dev_transport_t *t) |
521 | 504 | { |
522 | 504 | if (dev->io_handle != NULL) { |
523 | 0 | fido_log_debug("%s: non-NULL handle", __func__); |
524 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
525 | 0 | } |
526 | 504 | |
527 | 504 | dev->transport = *t; |
528 | 504 | dev->io_own = true; |
529 | 504 | |
530 | 504 | return (FIDO_OK); |
531 | 504 | } |
532 | | |
533 | | void |
534 | | fido_init(int flags) |
535 | 11.5k | { |
536 | 11.5k | if (flags & FIDO_DEBUG || getenv("FIDO_DEBUG") != NULL) |
537 | 11.5k | fido_log_init(); |
538 | 11.5k | |
539 | 11.5k | disable_u2f_fallback = (flags & FIDO_DISABLE_U2F_FALLBACK); |
540 | 11.5k | } |
541 | | |
542 | | fido_dev_t * |
543 | | fido_dev_new(void) |
544 | 45.6k | { |
545 | 45.6k | fido_dev_t *dev; |
546 | 45.6k | |
547 | 45.6k | if ((dev = calloc(1, sizeof(*dev))) == NULL) |
548 | 45.6k | return (NULL); |
549 | 45.5k | |
550 | 45.5k | dev->cid = CTAP_CID_BROADCAST; |
551 | 45.5k | dev->io = (fido_dev_io_t) { |
552 | 45.5k | &fido_hid_open, |
553 | 45.5k | &fido_hid_close, |
554 | 45.5k | &fido_hid_read, |
555 | 45.5k | &fido_hid_write, |
556 | 45.5k | }; |
557 | 45.5k | |
558 | 45.5k | return (dev); |
559 | 45.5k | } |
560 | | |
561 | | fido_dev_t * |
562 | | fido_dev_new_with_info(const fido_dev_info_t *di) |
563 | 0 | { |
564 | 0 | fido_dev_t *dev; |
565 | 0 |
|
566 | 0 | if ((dev = calloc(1, sizeof(*dev))) == NULL) |
567 | 0 | return (NULL); |
568 | 0 | |
569 | 0 | if (di->io.open == NULL || di->io.close == NULL || |
570 | 0 | di->io.read == NULL || di->io.write == NULL) { |
571 | 0 | fido_log_debug("%s: NULL function", __func__); |
572 | 0 | fido_dev_free(&dev); |
573 | 0 | return (NULL); |
574 | 0 | } |
575 | 0 | |
576 | 0 | dev->io = di->io; |
577 | 0 | dev->io_own = di->transport.tx != NULL || di->transport.rx != NULL; |
578 | 0 | dev->transport = di->transport; |
579 | 0 | dev->cid = CTAP_CID_BROADCAST; |
580 | 0 |
|
581 | 0 | if ((dev->path = strdup(di->path)) == NULL) { |
582 | 0 | fido_log_debug("%s: strdup", __func__); |
583 | 0 | fido_dev_free(&dev); |
584 | 0 | return (NULL); |
585 | 0 | } |
586 | 0 | |
587 | 0 | return (dev); |
588 | 0 | } |
589 | | |
590 | | void |
591 | | fido_dev_free(fido_dev_t **dev_p) |
592 | 52.2k | { |
593 | 52.2k | fido_dev_t *dev; |
594 | 52.2k | |
595 | 52.2k | if (dev_p == NULL || (dev = *dev_p) == NULL) |
596 | 52.2k | return; |
597 | 45.5k | |
598 | 45.5k | free(dev->path); |
599 | 45.5k | free(dev); |
600 | 45.5k | |
601 | 45.5k | *dev_p = NULL; |
602 | 45.5k | } |
603 | | |
604 | | uint8_t |
605 | | fido_dev_protocol(const fido_dev_t *dev) |
606 | 224 | { |
607 | 224 | return (dev->attr.protocol); |
608 | 224 | } |
609 | | |
610 | | uint8_t |
611 | | fido_dev_major(const fido_dev_t *dev) |
612 | 224 | { |
613 | 224 | return (dev->attr.major); |
614 | 224 | } |
615 | | |
616 | | uint8_t |
617 | | fido_dev_minor(const fido_dev_t *dev) |
618 | 224 | { |
619 | 224 | return (dev->attr.minor); |
620 | 224 | } |
621 | | |
622 | | uint8_t |
623 | | fido_dev_build(const fido_dev_t *dev) |
624 | 224 | { |
625 | 224 | return (dev->attr.build); |
626 | 224 | } |
627 | | |
628 | | uint8_t |
629 | | fido_dev_flags(const fido_dev_t *dev) |
630 | 224 | { |
631 | 224 | return (dev->attr.flags); |
632 | 224 | } |
633 | | |
634 | | bool |
635 | | fido_dev_is_fido2(const fido_dev_t *dev) |
636 | 51.3k | { |
637 | 51.3k | return (dev->attr.flags & FIDO_CAP_CBOR); |
638 | 51.3k | } |
639 | | |
640 | | bool |
641 | | fido_dev_supports_pin(const fido_dev_t *dev) |
642 | 2.38k | { |
643 | 2.38k | return (dev->flags & (FIDO_DEV_PIN_SET|FIDO_DEV_PIN_UNSET)); |
644 | 2.38k | } |
645 | | |
646 | | bool |
647 | | fido_dev_has_pin(const fido_dev_t *dev) |
648 | 2.28k | { |
649 | 2.28k | return (dev->flags & FIDO_DEV_PIN_SET); |
650 | 2.28k | } |
651 | | |
652 | | bool |
653 | | fido_dev_supports_cred_prot(const fido_dev_t *dev) |
654 | 2.41k | { |
655 | 2.41k | return (dev->flags & FIDO_DEV_CRED_PROT); |
656 | 2.41k | } |
657 | | |
658 | | bool |
659 | | fido_dev_supports_credman(const fido_dev_t *dev) |
660 | 2.41k | { |
661 | 2.41k | return (dev->flags & FIDO_DEV_CREDMAN); |
662 | 2.41k | } |
663 | | |
664 | | bool |
665 | | fido_dev_supports_uv(const fido_dev_t *dev) |
666 | 2.28k | { |
667 | 2.28k | return (dev->flags & (FIDO_DEV_UV_SET|FIDO_DEV_UV_UNSET)); |
668 | 2.28k | } |
669 | | |
670 | | bool |
671 | | fido_dev_has_uv(const fido_dev_t *dev) |
672 | 2.31k | { |
673 | 2.31k | return (dev->flags & FIDO_DEV_UV_SET); |
674 | 2.31k | } |
675 | | |
676 | | bool |
677 | | fido_dev_supports_permissions(const fido_dev_t *dev) |
678 | 5.15k | { |
679 | 5.15k | return (dev->flags & FIDO_DEV_TOKEN_PERMS); |
680 | 5.15k | } |
681 | | |
682 | | void |
683 | | fido_dev_force_u2f(fido_dev_t *dev) |
684 | 8.38k | { |
685 | 8.38k | dev->attr.flags &= (uint8_t)~FIDO_CAP_CBOR; |
686 | 8.38k | dev->flags = 0; |
687 | 8.38k | } |
688 | | |
689 | | void |
690 | | fido_dev_force_fido2(fido_dev_t *dev) |
691 | 0 | { |
692 | 0 | dev->attr.flags |= FIDO_CAP_CBOR; |
693 | 0 | } |
694 | | |
695 | | uint8_t |
696 | | fido_dev_get_pin_protocol(const fido_dev_t *dev) |
697 | 22.1k | { |
698 | 22.1k | if (dev->flags & FIDO_DEV_PIN_PROTOCOL2) |
699 | 22.1k | return (CTAP_PIN_PROTOCOL2); |
700 | 20.5k | else if (dev->flags & FIDO_DEV_PIN_PROTOCOL1) |
701 | 20.5k | return (CTAP_PIN_PROTOCOL1); |
702 | 1.24k | |
703 | 1.24k | return (0); |
704 | 1.24k | } |
705 | | |
706 | | uint64_t |
707 | | fido_dev_maxmsgsize(const fido_dev_t *dev) |
708 | 2.45k | { |
709 | 2.45k | return (dev->maxmsgsize); |
710 | 2.45k | } |