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 | 730 | { |
26 | 730 | *prev = NULL; |
27 | 730 | *curr = manifest_funcs; |
28 | 730 | |
29 | 1.09k | while (*curr != NULL && (*curr)->manifest_func != f) { |
30 | 365 | *prev = *curr; |
31 | 365 | *curr = (*curr)->next; |
32 | 365 | } |
33 | 730 | } |
34 | | |
35 | | #ifdef FIDO_FUZZ |
36 | | static void |
37 | | set_random_report_len(fido_dev_t *dev) |
38 | 53.7k | { |
39 | 53.7k | dev->rx_len = CTAP_MIN_REPORT_LEN + |
40 | 53.7k | uniform_random(CTAP_MAX_REPORT_LEN - CTAP_MIN_REPORT_LEN + 1); |
41 | 53.7k | dev->tx_len = CTAP_MIN_REPORT_LEN + |
42 | 53.7k | uniform_random(CTAP_MAX_REPORT_LEN - CTAP_MIN_REPORT_LEN + 1); |
43 | 53.7k | } |
44 | | #endif |
45 | | |
46 | | static void |
47 | | fido_dev_set_extension_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
48 | 7.03k | { |
49 | 7.03k | char * const *ptr = fido_cbor_info_extensions_ptr(info); |
50 | 7.03k | size_t len = fido_cbor_info_extensions_len(info); |
51 | 7.03k | |
52 | 20.7k | for (size_t i = 0; i < len; i++) |
53 | 13.7k | if (strcmp(ptr[i], "credProtect") == 0) |
54 | 3.19k | dev->flags |= FIDO_DEV_CRED_PROT; |
55 | 7.03k | } |
56 | | |
57 | | static void |
58 | | fido_dev_set_option_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
59 | 7.03k | { |
60 | 7.03k | char * const *ptr = fido_cbor_info_options_name_ptr(info); |
61 | 7.03k | const bool *val = fido_cbor_info_options_value_ptr(info); |
62 | 7.03k | size_t len = fido_cbor_info_options_len(info); |
63 | 7.03k | |
64 | 41.1k | for (size_t i = 0; i < len; i++) |
65 | 34.1k | if (strcmp(ptr[i], "clientPin") == 0) { |
66 | 3.11k | dev->flags |= val[i] ? FIDO_DEV_PIN_SET : FIDO_DEV_PIN_UNSET; |
67 | 31.0k | } else if (strcmp(ptr[i], "credMgmt") == 0 || |
68 | 31.0k | strcmp(ptr[i], "credentialMgmtPreview") == 0) { |
69 | 2.76k | if (val[i]) |
70 | 2.73k | dev->flags |= FIDO_DEV_CREDMAN; |
71 | 28.2k | } else if (strcmp(ptr[i], "uv") == 0) { |
72 | 526 | dev->flags |= val[i] ? FIDO_DEV_UV_SET : FIDO_DEV_UV_UNSET; |
73 | 27.7k | } else if (strcmp(ptr[i], "pinUvAuthToken") == 0) { |
74 | 445 | if (val[i]) |
75 | 427 | dev->flags |= FIDO_DEV_TOKEN_PERMS; |
76 | 445 | } |
77 | 7.03k | } |
78 | | |
79 | | static void |
80 | | fido_dev_set_protocol_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
81 | 7.03k | { |
82 | 7.03k | const uint8_t *ptr = fido_cbor_info_protocols_ptr(info); |
83 | 7.03k | size_t len = fido_cbor_info_protocols_len(info); |
84 | 7.03k | |
85 | 14.7k | for (size_t i = 0; i < len; i++) |
86 | 7.76k | switch (ptr[i]) { |
87 | 5.89k | case CTAP_PIN_PROTOCOL1: |
88 | 5.89k | dev->flags |= FIDO_DEV_PIN_PROTOCOL1; |
89 | 5.89k | break; |
90 | 1.06k | case CTAP_PIN_PROTOCOL2: |
91 | 1.06k | dev->flags |= FIDO_DEV_PIN_PROTOCOL2; |
92 | 1.06k | break; |
93 | 807 | default: |
94 | 807 | fido_log_debug("%s: unknown protocol %u", __func__, |
95 | 807 | ptr[i]); |
96 | 807 | break; |
97 | 7.76k | } |
98 | 7.03k | } |
99 | | |
100 | | static void |
101 | | fido_dev_set_flags(fido_dev_t *dev, const fido_cbor_info_t *info) |
102 | 7.03k | { |
103 | 7.03k | fido_dev_set_extension_flags(dev, info); |
104 | 7.03k | fido_dev_set_option_flags(dev, info); |
105 | 7.03k | fido_dev_set_protocol_flags(dev, info); |
106 | 7.03k | } |
107 | | |
108 | | static int |
109 | | fido_dev_open_tx(fido_dev_t *dev, const char *path) |
110 | 53.7k | { |
111 | 53.7k | int r; |
112 | 53.7k | |
113 | 53.7k | if (dev->io_handle != NULL) { |
114 | 0 | fido_log_debug("%s: handle=%p", __func__, dev->io_handle); |
115 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
116 | 0 | } |
117 | 53.7k | |
118 | 53.7k | if (dev->io.open == NULL || dev->io.close == NULL) { |
119 | 0 | fido_log_debug("%s: NULL open/close", __func__); |
120 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
121 | 0 | } |
122 | 53.7k | |
123 | 53.7k | if (dev->cid != CTAP_CID_BROADCAST) { |
124 | 0 | fido_log_debug("%s: cid=0x%x", __func__, dev->cid); |
125 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
126 | 0 | } |
127 | 53.7k | |
128 | 53.7k | if (fido_get_random(&dev->nonce, sizeof(dev->nonce)) < 0) { |
129 | 0 | fido_log_debug("%s: fido_get_random", __func__); |
130 | 0 | return (FIDO_ERR_INTERNAL); |
131 | 0 | } |
132 | 53.7k | |
133 | 53.7k | if ((dev->io_handle = dev->io.open(path)) == NULL) { |
134 | 0 | fido_log_debug("%s: dev->io.open", __func__); |
135 | 0 | return (FIDO_ERR_INTERNAL); |
136 | 0 | } |
137 | 53.7k | |
138 | 53.7k | if (dev->io_own) { |
139 | 53.7k | dev->rx_len = CTAP_MAX_REPORT_LEN; |
140 | 53.7k | dev->tx_len = CTAP_MAX_REPORT_LEN; |
141 | 53.7k | } else { |
142 | 0 | dev->rx_len = fido_hid_report_in_len(dev->io_handle); |
143 | 0 | dev->tx_len = fido_hid_report_out_len(dev->io_handle); |
144 | 0 | } |
145 | 53.7k | |
146 | 53.7k | #ifdef FIDO_FUZZ |
147 | 53.7k | set_random_report_len(dev); |
148 | 53.7k | #endif |
149 | 53.7k | |
150 | 53.7k | if (dev->rx_len < CTAP_MIN_REPORT_LEN || |
151 | 53.7k | dev->rx_len > CTAP_MAX_REPORT_LEN) { |
152 | 0 | fido_log_debug("%s: invalid rx_len %zu", __func__, dev->rx_len); |
153 | 0 | r = FIDO_ERR_RX; |
154 | 0 | goto fail; |
155 | 0 | } |
156 | 53.7k | |
157 | 53.7k | if (dev->tx_len < CTAP_MIN_REPORT_LEN || |
158 | 53.7k | dev->tx_len > CTAP_MAX_REPORT_LEN) { |
159 | 0 | fido_log_debug("%s: invalid tx_len %zu", __func__, dev->tx_len); |
160 | 0 | r = FIDO_ERR_TX; |
161 | 0 | goto fail; |
162 | 0 | } |
163 | 53.7k | |
164 | 53.7k | if (fido_tx(dev, CTAP_CMD_INIT, &dev->nonce, sizeof(dev->nonce)) < 0) { |
165 | 348 | fido_log_debug("%s: fido_tx", __func__); |
166 | 348 | r = FIDO_ERR_TX; |
167 | 348 | goto fail; |
168 | 348 | } |
169 | 53.3k | |
170 | 53.3k | return (FIDO_OK); |
171 | 348 | fail: |
172 | 348 | dev->io.close(dev->io_handle); |
173 | 348 | dev->io_handle = NULL; |
174 | 348 | |
175 | 348 | return (r); |
176 | 53.3k | } |
177 | | |
178 | | static int |
179 | | fido_dev_open_rx(fido_dev_t *dev, int ms) |
180 | 53.3k | { |
181 | 53.3k | fido_cbor_info_t *info = NULL; |
182 | 53.3k | int reply_len; |
183 | 53.3k | int r; |
184 | 53.3k | |
185 | 53.3k | if ((reply_len = fido_rx(dev, CTAP_CMD_INIT, &dev->attr, |
186 | 53.3k | sizeof(dev->attr), ms)) < 0) { |
187 | 32.9k | fido_log_debug("%s: fido_rx", __func__); |
188 | 32.9k | r = FIDO_ERR_RX; |
189 | 32.9k | goto fail; |
190 | 32.9k | } |
191 | 20.4k | |
192 | 20.4k | #ifdef FIDO_FUZZ |
193 | 20.4k | dev->attr.nonce = dev->nonce; |
194 | 20.4k | #endif |
195 | 20.4k | |
196 | 20.4k | if ((size_t)reply_len != sizeof(dev->attr) || |
197 | 20.4k | dev->attr.nonce != dev->nonce) { |
198 | 336 | fido_log_debug("%s: invalid nonce", __func__); |
199 | 336 | r = FIDO_ERR_RX; |
200 | 336 | goto fail; |
201 | 336 | } |
202 | 20.1k | |
203 | 20.1k | dev->flags = 0; |
204 | 20.1k | dev->cid = dev->attr.cid; |
205 | 20.1k | |
206 | 20.1k | if (fido_dev_is_fido2(dev)) { |
207 | 16.5k | if ((info = fido_cbor_info_new()) == NULL) { |
208 | 52 | fido_log_debug("%s: fido_cbor_info_new", __func__); |
209 | 52 | r = FIDO_ERR_INTERNAL; |
210 | 52 | goto fail; |
211 | 52 | } |
212 | 16.4k | if ((r = fido_dev_get_cbor_info_wait(dev, info, |
213 | 16.4k | ms)) != FIDO_OK) { |
214 | 9.44k | fido_log_debug("%s: fido_dev_cbor_info_wait: %d", |
215 | 9.44k | __func__, r); |
216 | 9.44k | if (disable_u2f_fallback) |
217 | 0 | goto fail; |
218 | 9.44k | fido_log_debug("%s: falling back to u2f", __func__); |
219 | 9.44k | fido_dev_force_u2f(dev); |
220 | 9.44k | } else { |
221 | 7.03k | fido_dev_set_flags(dev, info); |
222 | 7.03k | } |
223 | 16.4k | } |
224 | 20.1k | |
225 | 20.1k | if (fido_dev_is_fido2(dev) && info != NULL) { |
226 | 7.03k | dev->maxmsgsize = fido_cbor_info_maxmsgsiz(info); |
227 | 7.03k | fido_log_debug("%s: FIDO_MAXMSG=%d, maxmsgsiz=%lu", __func__, |
228 | 7.03k | FIDO_MAXMSG, (unsigned long)dev->maxmsgsize); |
229 | 7.03k | } |
230 | 20.0k | |
231 | 20.0k | r = FIDO_OK; |
232 | 53.3k | fail: |
233 | 53.3k | fido_cbor_info_free(&info); |
234 | 53.3k | |
235 | 53.3k | if (r != FIDO_OK) { |
236 | 33.2k | dev->io.close(dev->io_handle); |
237 | 33.2k | dev->io_handle = NULL; |
238 | 33.2k | } |
239 | 53.3k | |
240 | 53.3k | return (r); |
241 | 20.0k | } |
242 | | |
243 | | static int |
244 | | fido_dev_open_wait(fido_dev_t *dev, const char *path, int ms) |
245 | 53.7k | { |
246 | 53.7k | int r; |
247 | 53.7k | |
248 | | #ifdef USE_WINHELLO |
249 | | if (strcmp(path, FIDO_WINHELLO_PATH) == 0) |
250 | | return (fido_winhello_open(dev)); |
251 | | #endif |
252 | 53.7k | if ((r = fido_dev_open_tx(dev, path)) != FIDO_OK || |
253 | 53.7k | (r = fido_dev_open_rx(dev, ms)) != FIDO_OK) |
254 | 53.7k | return (r); |
255 | 20.0k | |
256 | 20.0k | return (FIDO_OK); |
257 | 20.0k | } |
258 | | |
259 | | int |
260 | | fido_dev_register_manifest_func(const dev_manifest_func_t f) |
261 | 730 | { |
262 | 730 | dev_manifest_func_node_t *prev, *curr, *n; |
263 | 730 | |
264 | 730 | find_manifest_func_node(f, &curr, &prev); |
265 | 730 | if (curr != NULL) |
266 | 730 | return (FIDO_OK); |
267 | 2 | |
268 | 2 | if ((n = calloc(1, sizeof(*n))) == NULL) { |
269 | 0 | fido_log_debug("%s: calloc", __func__); |
270 | 0 | return (FIDO_ERR_INTERNAL); |
271 | 0 | } |
272 | 2 | |
273 | 2 | n->manifest_func = f; |
274 | 2 | n->next = manifest_funcs; |
275 | 2 | manifest_funcs = n; |
276 | 2 | |
277 | 2 | return (FIDO_OK); |
278 | 2 | } |
279 | | |
280 | | void |
281 | | fido_dev_unregister_manifest_func(const dev_manifest_func_t f) |
282 | 0 | { |
283 | 0 | dev_manifest_func_node_t *prev, *curr; |
284 | 0 |
|
285 | 0 | find_manifest_func_node(f, &curr, &prev); |
286 | 0 | if (curr == NULL) |
287 | 0 | return; |
288 | 0 | if (prev != NULL) |
289 | 0 | prev->next = curr->next; |
290 | 0 | else |
291 | 0 | manifest_funcs = curr->next; |
292 | 0 |
|
293 | 0 | free(curr); |
294 | 0 | } |
295 | | |
296 | | int |
297 | | fido_dev_info_manifest(fido_dev_info_t *devlist, size_t ilen, size_t *olen) |
298 | 365 | { |
299 | 365 | dev_manifest_func_node_t *curr = NULL; |
300 | 365 | dev_manifest_func_t m_func; |
301 | 365 | size_t curr_olen; |
302 | 365 | int r; |
303 | 365 | |
304 | 365 | *olen = 0; |
305 | 365 | |
306 | 365 | if (fido_dev_register_manifest_func(fido_hid_manifest) != FIDO_OK) |
307 | 365 | return (FIDO_ERR_INTERNAL); |
308 | 365 | #ifdef NFC_LINUX |
309 | 365 | if (fido_dev_register_manifest_func(fido_nfc_manifest) != FIDO_OK) |
310 | 365 | return (FIDO_ERR_INTERNAL); |
311 | 365 | #endif |
312 | | #ifdef USE_WINHELLO |
313 | | if (fido_dev_register_manifest_func(fido_winhello_manifest) != FIDO_OK) |
314 | | return (FIDO_ERR_INTERNAL); |
315 | | #endif |
316 | 365 | |
317 | 816 | for (curr = manifest_funcs; curr != NULL; curr = curr->next) { |
318 | 602 | curr_olen = 0; |
319 | 602 | m_func = curr->manifest_func; |
320 | 602 | r = m_func(devlist + *olen, ilen - *olen, &curr_olen); |
321 | 602 | if (r != FIDO_OK) |
322 | 602 | return (r); |
323 | 593 | *olen += curr_olen; |
324 | 593 | if (*olen == ilen) |
325 | 142 | break; |
326 | 593 | } |
327 | 365 | |
328 | 365 | return (FIDO_OK); |
329 | 365 | } |
330 | | |
331 | | int |
332 | | fido_dev_open_with_info(fido_dev_t *dev) |
333 | 0 | { |
334 | 0 | if (dev->path == NULL) |
335 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
336 | 0 |
|
337 | 0 | return (fido_dev_open_wait(dev, dev->path, -1)); |
338 | 0 | } |
339 | | |
340 | | int |
341 | | fido_dev_open(fido_dev_t *dev, const char *path) |
342 | 53.7k | { |
343 | 53.7k | #ifdef NFC_LINUX |
344 | 53.7k | /* |
345 | 53.7k | * this is a hack to get existing applications up and running with nfc; |
346 | 53.7k | * it will *NOT* be part of a libfido2 release. to support nfc in your |
347 | 53.7k | * application, please change it to use fido_dev_open_with_info(). |
348 | 53.7k | */ |
349 | 53.7k | if (strncmp(path, "/sys", strlen("/sys")) == 0 && strlen(path) > 4 && |
350 | 53.7k | path[strlen(path) - 4] == 'n' && path[strlen(path) - 3] == 'f' && |
351 | 53.7k | path[strlen(path) - 2] == 'c') { |
352 | 0 | dev->io_own = true; |
353 | 0 | dev->io = (fido_dev_io_t) { |
354 | 0 | fido_nfc_open, |
355 | 0 | fido_nfc_close, |
356 | 0 | fido_nfc_read, |
357 | 0 | fido_nfc_write, |
358 | 0 | }; |
359 | 0 | dev->transport = (fido_dev_transport_t) { |
360 | 0 | fido_nfc_rx, |
361 | 0 | fido_nfc_tx, |
362 | 0 | }; |
363 | 0 | } |
364 | 53.7k | #endif |
365 | 53.7k | |
366 | 53.7k | return (fido_dev_open_wait(dev, path, -1)); |
367 | 53.7k | } |
368 | | |
369 | | int |
370 | | fido_dev_close(fido_dev_t *dev) |
371 | 20.0k | { |
372 | | #ifdef USE_WINHELLO |
373 | | if (dev->flags & FIDO_DEV_WINHELLO) |
374 | | return (fido_winhello_close(dev)); |
375 | | #endif |
376 | 20.0k | if (dev->io_handle == NULL || dev->io.close == NULL) |
377 | 20.0k | return (FIDO_ERR_INVALID_ARGUMENT); |
378 | 20.0k | |
379 | 20.0k | dev->io.close(dev->io_handle); |
380 | 20.0k | dev->io_handle = NULL; |
381 | 20.0k | dev->cid = CTAP_CID_BROADCAST; |
382 | 20.0k | |
383 | 20.0k | return (FIDO_OK); |
384 | 20.0k | } |
385 | | |
386 | | int |
387 | | fido_dev_set_sigmask(fido_dev_t *dev, const fido_sigset_t *sigmask) |
388 | 0 | { |
389 | 0 | if (dev->io_own || dev->io_handle == NULL || sigmask == NULL) |
390 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
391 | 0 |
|
392 | 0 | #ifdef NFC_LINUX |
393 | 0 | if (dev->transport.rx == fido_nfc_rx) |
394 | 0 | return (fido_nfc_set_sigmask(dev->io_handle, sigmask)); |
395 | 0 | #endif |
396 | 0 | return (fido_hid_set_sigmask(dev->io_handle, sigmask)); |
397 | 0 | } |
398 | | |
399 | | int |
400 | | fido_dev_cancel(fido_dev_t *dev) |
401 | 5.14k | { |
402 | | #ifdef USE_WINHELLO |
403 | | if (dev->flags & FIDO_DEV_WINHELLO) |
404 | | return (fido_winhello_cancel(dev)); |
405 | | #endif |
406 | 5.14k | if (fido_dev_is_fido2(dev) == false) |
407 | 5.14k | return (FIDO_ERR_INVALID_ARGUMENT); |
408 | 1.94k | if (fido_tx(dev, CTAP_CMD_CANCEL, NULL, 0) < 0) |
409 | 83 | return (FIDO_ERR_TX); |
410 | 1.85k | |
411 | 1.85k | return (FIDO_OK); |
412 | 1.85k | } |
413 | | |
414 | | int |
415 | | fido_dev_get_touch_begin(fido_dev_t *dev) |
416 | 1.72k | { |
417 | 1.72k | fido_blob_t f; |
418 | 1.72k | cbor_item_t *argv[9]; |
419 | 1.72k | const char *clientdata = FIDO_DUMMY_CLIENTDATA; |
420 | 1.72k | const uint8_t user_id = FIDO_DUMMY_USER_ID; |
421 | 1.72k | unsigned char cdh[SHA256_DIGEST_LENGTH]; |
422 | 1.72k | fido_rp_t rp; |
423 | 1.72k | fido_user_t user; |
424 | 1.72k | int r = FIDO_ERR_INTERNAL; |
425 | 1.72k | |
426 | 1.72k | memset(&f, 0, sizeof(f)); |
427 | 1.72k | memset(argv, 0, sizeof(argv)); |
428 | 1.72k | memset(cdh, 0, sizeof(cdh)); |
429 | 1.72k | memset(&rp, 0, sizeof(rp)); |
430 | 1.72k | memset(&user, 0, sizeof(user)); |
431 | 1.72k | |
432 | 1.72k | if (fido_dev_is_fido2(dev) == false) |
433 | 1.72k | return (u2f_get_touch_begin(dev)); |
434 | 154 | |
435 | 154 | if (SHA256((const void *)clientdata, strlen(clientdata), cdh) != cdh) { |
436 | 1 | fido_log_debug("%s: sha256", __func__); |
437 | 1 | return (FIDO_ERR_INTERNAL); |
438 | 1 | } |
439 | 153 | |
440 | 153 | if ((rp.id = strdup(FIDO_DUMMY_RP_ID)) == NULL || |
441 | 153 | (user.name = strdup(FIDO_DUMMY_USER_NAME)) == NULL) { |
442 | 5 | fido_log_debug("%s: strdup", __func__); |
443 | 5 | goto fail; |
444 | 5 | } |
445 | 148 | |
446 | 148 | if (fido_blob_set(&user.id, &user_id, sizeof(user_id)) < 0) { |
447 | 1 | fido_log_debug("%s: fido_blob_set", __func__); |
448 | 1 | goto fail; |
449 | 1 | } |
450 | 147 | |
451 | 147 | if ((argv[0] = cbor_build_bytestring(cdh, sizeof(cdh))) == NULL || |
452 | 147 | (argv[1] = cbor_encode_rp_entity(&rp)) == NULL || |
453 | 147 | (argv[2] = cbor_encode_user_entity(&user)) == NULL || |
454 | 147 | (argv[3] = cbor_encode_pubkey_param(COSE_ES256)) == NULL) { |
455 | 47 | fido_log_debug("%s: cbor encode", __func__); |
456 | 47 | goto fail; |
457 | 47 | } |
458 | 100 | |
459 | 100 | if (fido_dev_supports_pin(dev)) { |
460 | 95 | if ((argv[7] = cbor_new_definite_bytestring()) == NULL || |
461 | 95 | (argv[8] = cbor_encode_pin_opt(dev)) == NULL) { |
462 | 3 | fido_log_debug("%s: cbor encode", __func__); |
463 | 3 | goto fail; |
464 | 3 | } |
465 | 97 | } |
466 | 97 | |
467 | 97 | if (cbor_build_frame(CTAP_CBOR_MAKECRED, argv, nitems(argv), &f) < 0 || |
468 | 97 | fido_tx(dev, CTAP_CMD_CBOR, f.ptr, f.len) < 0) { |
469 | 14 | fido_log_debug("%s: fido_tx", __func__); |
470 | 14 | r = FIDO_ERR_TX; |
471 | 14 | goto fail; |
472 | 14 | } |
473 | 83 | |
474 | 83 | r = FIDO_OK; |
475 | 153 | fail: |
476 | 153 | cbor_vector_free(argv, nitems(argv)); |
477 | 153 | free(f.ptr); |
478 | 153 | free(rp.id); |
479 | 153 | free(user.name); |
480 | 153 | free(user.id.ptr); |
481 | 153 | |
482 | 153 | return (r); |
483 | 83 | } |
484 | | |
485 | | int |
486 | | fido_dev_get_touch_status(fido_dev_t *dev, int *touched, int ms) |
487 | 1.72k | { |
488 | 1.72k | int r; |
489 | 1.72k | |
490 | 1.72k | *touched = 0; |
491 | 1.72k | |
492 | 1.72k | if (fido_dev_is_fido2(dev) == false) |
493 | 1.72k | return (u2f_get_touch_status(dev, touched, ms)); |
494 | 154 | |
495 | 154 | switch ((r = fido_rx_cbor_status(dev, ms))) { |
496 | 48 | case FIDO_ERR_PIN_AUTH_INVALID: |
497 | 48 | case FIDO_ERR_PIN_INVALID: |
498 | 48 | case FIDO_ERR_PIN_NOT_SET: |
499 | 48 | case FIDO_ERR_SUCCESS: |
500 | 48 | *touched = 1; |
501 | 48 | break; |
502 | 54 | case FIDO_ERR_RX: |
503 | 54 | /* ignore */ |
504 | 54 | break; |
505 | 52 | default: |
506 | 52 | fido_log_debug("%s: fido_rx_cbor_status", __func__); |
507 | 52 | return (r); |
508 | 102 | } |
509 | 102 | |
510 | 102 | return (FIDO_OK); |
511 | 102 | } |
512 | | |
513 | | int |
514 | | fido_dev_set_io_functions(fido_dev_t *dev, const fido_dev_io_t *io) |
515 | 53.7k | { |
516 | 53.7k | if (dev->io_handle != NULL) { |
517 | 0 | fido_log_debug("%s: non-NULL handle", __func__); |
518 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
519 | 0 | } |
520 | 53.7k | |
521 | 53.7k | if (io == NULL || io->open == NULL || io->close == NULL || |
522 | 53.7k | io->read == NULL || io->write == NULL) { |
523 | 0 | fido_log_debug("%s: NULL function", __func__); |
524 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
525 | 0 | } |
526 | 53.7k | |
527 | 53.7k | dev->io = *io; |
528 | 53.7k | dev->io_own = true; |
529 | 53.7k | |
530 | 53.7k | return (FIDO_OK); |
531 | 53.7k | } |
532 | | |
533 | | int |
534 | | fido_dev_set_transport_functions(fido_dev_t *dev, const fido_dev_transport_t *t) |
535 | 624 | { |
536 | 624 | if (dev->io_handle != NULL) { |
537 | 0 | fido_log_debug("%s: non-NULL handle", __func__); |
538 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
539 | 0 | } |
540 | 624 | |
541 | 624 | dev->transport = *t; |
542 | 624 | dev->io_own = true; |
543 | 624 | |
544 | 624 | return (FIDO_OK); |
545 | 624 | } |
546 | | |
547 | | void |
548 | | fido_init(int flags) |
549 | 13.1k | { |
550 | 13.1k | if (flags & FIDO_DEBUG || getenv("FIDO_DEBUG") != NULL) |
551 | 13.1k | fido_log_init(); |
552 | 13.1k | |
553 | 13.1k | disable_u2f_fallback = (flags & FIDO_DISABLE_U2F_FALLBACK); |
554 | 13.1k | } |
555 | | |
556 | | fido_dev_t * |
557 | | fido_dev_new(void) |
558 | 53.8k | { |
559 | 53.8k | fido_dev_t *dev; |
560 | 53.8k | |
561 | 53.8k | if ((dev = calloc(1, sizeof(*dev))) == NULL) |
562 | 53.8k | return (NULL); |
563 | 53.7k | |
564 | 53.7k | dev->cid = CTAP_CID_BROADCAST; |
565 | 53.7k | dev->io = (fido_dev_io_t) { |
566 | 53.7k | &fido_hid_open, |
567 | 53.7k | &fido_hid_close, |
568 | 53.7k | &fido_hid_read, |
569 | 53.7k | &fido_hid_write, |
570 | 53.7k | }; |
571 | 53.7k | |
572 | 53.7k | return (dev); |
573 | 53.7k | } |
574 | | |
575 | | fido_dev_t * |
576 | | fido_dev_new_with_info(const fido_dev_info_t *di) |
577 | 0 | { |
578 | 0 | fido_dev_t *dev; |
579 | 0 |
|
580 | 0 | if ((dev = calloc(1, sizeof(*dev))) == NULL) |
581 | 0 | return (NULL); |
582 | 0 | |
583 | | #if 0 |
584 | | if (di->io.open == NULL || di->io.close == NULL || |
585 | | di->io.read == NULL || di->io.write == NULL) { |
586 | | fido_log_debug("%s: NULL function", __func__); |
587 | | fido_dev_free(&dev); |
588 | | return (NULL); |
589 | | } |
590 | | #endif |
591 | 0 | |
592 | 0 | dev->io = di->io; |
593 | 0 | dev->io_own = di->transport.tx != NULL || di->transport.rx != NULL; |
594 | 0 | dev->transport = di->transport; |
595 | 0 | dev->cid = CTAP_CID_BROADCAST; |
596 | 0 |
|
597 | 0 | if ((dev->path = strdup(di->path)) == NULL) { |
598 | 0 | fido_log_debug("%s: strdup", __func__); |
599 | 0 | fido_dev_free(&dev); |
600 | 0 | return (NULL); |
601 | 0 | } |
602 | 0 | |
603 | 0 | return (dev); |
604 | 0 | } |
605 | | |
606 | | void |
607 | | fido_dev_free(fido_dev_t **dev_p) |
608 | 60.9k | { |
609 | 60.9k | fido_dev_t *dev; |
610 | 60.9k | |
611 | 60.9k | if (dev_p == NULL || (dev = *dev_p) == NULL) |
612 | 60.9k | return; |
613 | 53.7k | |
614 | 53.7k | free(dev->path); |
615 | 53.7k | free(dev); |
616 | 53.7k | |
617 | 53.7k | *dev_p = NULL; |
618 | 53.7k | } |
619 | | |
620 | | uint8_t |
621 | | fido_dev_protocol(const fido_dev_t *dev) |
622 | 307 | { |
623 | 307 | return (dev->attr.protocol); |
624 | 307 | } |
625 | | |
626 | | uint8_t |
627 | | fido_dev_major(const fido_dev_t *dev) |
628 | 307 | { |
629 | 307 | return (dev->attr.major); |
630 | 307 | } |
631 | | |
632 | | uint8_t |
633 | | fido_dev_minor(const fido_dev_t *dev) |
634 | 307 | { |
635 | 307 | return (dev->attr.minor); |
636 | 307 | } |
637 | | |
638 | | uint8_t |
639 | | fido_dev_build(const fido_dev_t *dev) |
640 | 307 | { |
641 | 307 | return (dev->attr.build); |
642 | 307 | } |
643 | | |
644 | | uint8_t |
645 | | fido_dev_flags(const fido_dev_t *dev) |
646 | 307 | { |
647 | 307 | return (dev->attr.flags); |
648 | 307 | } |
649 | | |
650 | | bool |
651 | | fido_dev_is_fido2(const fido_dev_t *dev) |
652 | 62.0k | { |
653 | 62.0k | return (dev->attr.flags & FIDO_CAP_CBOR); |
654 | 62.0k | } |
655 | | |
656 | | bool |
657 | | fido_dev_is_winhello(const fido_dev_t *dev) |
658 | 0 | { |
659 | 0 | return (dev->flags & FIDO_DEV_WINHELLO); |
660 | 0 | } |
661 | | |
662 | | bool |
663 | | fido_dev_supports_pin(const fido_dev_t *dev) |
664 | 2.63k | { |
665 | 2.63k | return (dev->flags & (FIDO_DEV_PIN_SET|FIDO_DEV_PIN_UNSET)); |
666 | 2.63k | } |
667 | | |
668 | | bool |
669 | | fido_dev_has_pin(const fido_dev_t *dev) |
670 | 2.53k | { |
671 | 2.53k | return (dev->flags & FIDO_DEV_PIN_SET); |
672 | 2.53k | } |
673 | | |
674 | | bool |
675 | | fido_dev_supports_cred_prot(const fido_dev_t *dev) |
676 | 3.15k | { |
677 | 3.15k | return (dev->flags & FIDO_DEV_CRED_PROT); |
678 | 3.15k | } |
679 | | |
680 | | bool |
681 | | fido_dev_supports_credman(const fido_dev_t *dev) |
682 | 3.15k | { |
683 | 3.15k | return (dev->flags & FIDO_DEV_CREDMAN); |
684 | 3.15k | } |
685 | | |
686 | | bool |
687 | | fido_dev_supports_uv(const fido_dev_t *dev) |
688 | 2.53k | { |
689 | 2.53k | return (dev->flags & (FIDO_DEV_UV_SET|FIDO_DEV_UV_UNSET)); |
690 | 2.53k | } |
691 | | |
692 | | bool |
693 | | fido_dev_has_uv(const fido_dev_t *dev) |
694 | 2.58k | { |
695 | 2.58k | return (dev->flags & FIDO_DEV_UV_SET); |
696 | 2.58k | } |
697 | | |
698 | | bool |
699 | | fido_dev_supports_permissions(const fido_dev_t *dev) |
700 | 4.40k | { |
701 | 4.40k | return (dev->flags & FIDO_DEV_TOKEN_PERMS); |
702 | 4.40k | } |
703 | | |
704 | | void |
705 | | fido_dev_force_u2f(fido_dev_t *dev) |
706 | 10.6k | { |
707 | 10.6k | dev->attr.flags &= (uint8_t)~FIDO_CAP_CBOR; |
708 | 10.6k | dev->flags = 0; |
709 | 10.6k | } |
710 | | |
711 | | void |
712 | | fido_dev_force_fido2(fido_dev_t *dev) |
713 | 0 | { |
714 | 0 | dev->attr.flags |= FIDO_CAP_CBOR; |
715 | 0 | } |
716 | | |
717 | | uint8_t |
718 | | fido_dev_get_pin_protocol(const fido_dev_t *dev) |
719 | 24.1k | { |
720 | 24.1k | if (dev->flags & FIDO_DEV_PIN_PROTOCOL2) |
721 | 24.1k | return (CTAP_PIN_PROTOCOL2); |
722 | 22.3k | else if (dev->flags & FIDO_DEV_PIN_PROTOCOL1) |
723 | 22.3k | return (CTAP_PIN_PROTOCOL1); |
724 | 1.77k | |
725 | 1.77k | return (0); |
726 | 1.77k | } |
727 | | |
728 | | uint64_t |
729 | | fido_dev_maxmsgsize(const fido_dev_t *dev) |
730 | 2.77k | { |
731 | 2.77k | return (dev->maxmsgsize); |
732 | 2.77k | } |