Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright (c) 2018-2021 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 | | |
9 | | #include "fido.h" |
10 | | #include "fido/es256.h" |
11 | | #include "fido/rs256.h" |
12 | | #include "fido/eddsa.h" |
13 | | |
14 | | static int |
15 | | adjust_assert_count(const cbor_item_t *key, const cbor_item_t *val, void *arg) |
16 | 1.26k | { |
17 | 1.26k | fido_assert_t *assert = arg; |
18 | 1.26k | uint64_t n; |
19 | | |
20 | | /* numberOfCredentials; see section 6.2 */ |
21 | 1.26k | if (cbor_isa_uint(key) == false || |
22 | 1.26k | cbor_int_get_width(key) != CBOR_INT_8 || |
23 | 1.26k | cbor_get_uint8(key) != 5) { |
24 | 1.14k | fido_log_debug("%s: cbor_type", __func__); |
25 | 1.14k | return (0); /* ignore */ |
26 | 1.14k | } |
27 | | |
28 | 124 | if (cbor_decode_uint64(val, &n) < 0 || n > SIZE_MAX) { |
29 | 1 | fido_log_debug("%s: cbor_decode_uint64", __func__); |
30 | 1 | return (-1); |
31 | 1 | } |
32 | | |
33 | 123 | if (assert->stmt_len != 0 || assert->stmt_cnt != 1 || |
34 | 123 | (size_t)n < assert->stmt_cnt) { |
35 | 1 | fido_log_debug("%s: stmt_len=%zu, stmt_cnt=%zu, n=%zu", |
36 | 1 | __func__, assert->stmt_len, assert->stmt_cnt, (size_t)n); |
37 | 1 | return (-1); |
38 | 1 | } |
39 | | |
40 | 122 | if (fido_assert_set_count(assert, (size_t)n) != FIDO_OK) { |
41 | 44 | fido_log_debug("%s: fido_assert_set_count", __func__); |
42 | 44 | return (-1); |
43 | 44 | } |
44 | | |
45 | 78 | assert->stmt_len = 0; /* XXX */ |
46 | | |
47 | 78 | return (0); |
48 | 78 | } |
49 | | |
50 | | static int |
51 | | parse_assert_reply(const cbor_item_t *key, const cbor_item_t *val, void *arg) |
52 | 1.80k | { |
53 | 1.80k | fido_assert_stmt *stmt = arg; |
54 | | |
55 | 1.80k | if (cbor_isa_uint(key) == false || |
56 | 1.80k | cbor_int_get_width(key) != CBOR_INT_8) { |
57 | 59 | fido_log_debug("%s: cbor type", __func__); |
58 | 59 | return (0); /* ignore */ |
59 | 59 | } |
60 | | |
61 | 1.74k | switch (cbor_get_uint8(key)) { |
62 | 584 | case 1: /* credential id */ |
63 | 584 | return (cbor_decode_cred_id(val, &stmt->id)); |
64 | 424 | case 2: /* authdata */ |
65 | 424 | return (cbor_decode_assert_authdata(val, &stmt->authdata_cbor, |
66 | 424 | &stmt->authdata, &stmt->authdata_ext)); |
67 | 381 | case 3: /* signature */ |
68 | 381 | return (fido_blob_decode(val, &stmt->sig)); |
69 | 268 | case 4: /* user attributes */ |
70 | 268 | return (cbor_decode_user(val, &stmt->user)); |
71 | 1 | case 7: /* large blob key */ |
72 | 1 | return (fido_blob_decode(val, &stmt->largeblob_key)); |
73 | 83 | default: /* ignore */ |
74 | 83 | fido_log_debug("%s: cbor type", __func__); |
75 | 83 | return (0); |
76 | 1.74k | } |
77 | 1.74k | } |
78 | | |
79 | | static int |
80 | | fido_dev_get_assert_tx(fido_dev_t *dev, fido_assert_t *assert, |
81 | | const es256_pk_t *pk, const fido_blob_t *ecdh, const char *pin, int *ms) |
82 | 891 | { |
83 | 891 | fido_blob_t f; |
84 | 891 | fido_opt_t uv = assert->uv; |
85 | 891 | cbor_item_t *argv[7]; |
86 | 891 | const uint8_t cmd = CTAP_CBOR_ASSERT; |
87 | 891 | int r; |
88 | | |
89 | 891 | memset(argv, 0, sizeof(argv)); |
90 | 891 | memset(&f, 0, sizeof(f)); |
91 | | |
92 | | /* do we have everything we need? */ |
93 | 891 | if (assert->rp_id == NULL || assert->cdh.ptr == NULL) { |
94 | 0 | fido_log_debug("%s: rp_id=%p, cdh.ptr=%p", __func__, |
95 | 0 | (void *)assert->rp_id, (void *)assert->cdh.ptr); |
96 | 0 | r = FIDO_ERR_INVALID_ARGUMENT; |
97 | 0 | goto fail; |
98 | 0 | } |
99 | | |
100 | 891 | if ((argv[0] = cbor_build_string(assert->rp_id)) == NULL || |
101 | 891 | (argv[1] = fido_blob_encode(&assert->cdh)) == NULL) { |
102 | 3 | fido_log_debug("%s: cbor encode", __func__); |
103 | 3 | r = FIDO_ERR_INTERNAL; |
104 | 3 | goto fail; |
105 | 3 | } |
106 | | |
107 | | /* allowed credentials */ |
108 | 888 | if (assert->allow_list.len) { |
109 | 547 | const fido_blob_array_t *cl = &assert->allow_list; |
110 | 547 | if ((argv[2] = cbor_encode_pubkey_list(cl)) == NULL) { |
111 | 47 | fido_log_debug("%s: cbor_encode_pubkey_list", __func__); |
112 | 47 | r = FIDO_ERR_INTERNAL; |
113 | 47 | goto fail; |
114 | 47 | } |
115 | 841 | } |
116 | | |
117 | 841 | if (assert->ext.mask) |
118 | 425 | if ((argv[3] = cbor_encode_assert_ext(dev, &assert->ext, ecdh, |
119 | 425 | pk)) == NULL) { |
120 | 56 | fido_log_debug("%s: cbor_encode_assert_ext", __func__); |
121 | 56 | r = FIDO_ERR_INTERNAL; |
122 | 56 | goto fail; |
123 | 56 | } |
124 | | |
125 | | /* user verification */ |
126 | 785 | if (pin != NULL || (uv == FIDO_OPT_TRUE && |
127 | 439 | fido_dev_supports_permissions(dev))) { |
128 | 439 | if ((r = cbor_add_uv_params(dev, cmd, &assert->cdh, pk, ecdh, |
129 | 439 | pin, assert->rp_id, &argv[5], &argv[6], ms)) != FIDO_OK) { |
130 | 131 | fido_log_debug("%s: cbor_add_uv_params", __func__); |
131 | 131 | goto fail; |
132 | 131 | } |
133 | 308 | uv = FIDO_OPT_OMIT; |
134 | 308 | } |
135 | | |
136 | | /* options */ |
137 | 785 | if (assert->up != FIDO_OPT_OMIT || uv != FIDO_OPT_OMIT) |
138 | 349 | if ((argv[4] = cbor_encode_assert_opt(assert->up, uv)) == NULL) { |
139 | 4 | fido_log_debug("%s: cbor_encode_assert_opt", __func__); |
140 | 4 | r = FIDO_ERR_INTERNAL; |
141 | 4 | goto fail; |
142 | 4 | } |
143 | | |
144 | | /* frame and transmit */ |
145 | 650 | if (cbor_build_frame(cmd, argv, nitems(argv), &f) < 0 || |
146 | 650 | fido_tx(dev, CTAP_CMD_CBOR, f.ptr, f.len, ms) < 0) { |
147 | 114 | fido_log_debug("%s: fido_tx", __func__); |
148 | 114 | r = FIDO_ERR_TX; |
149 | 114 | goto fail; |
150 | 114 | } |
151 | | |
152 | 536 | r = FIDO_OK; |
153 | 891 | fail: |
154 | 891 | cbor_vector_free(argv, nitems(argv)); |
155 | 891 | free(f.ptr); |
156 | | |
157 | 891 | return (r); |
158 | 536 | } |
159 | | |
160 | | static int |
161 | | fido_dev_get_assert_rx(fido_dev_t *dev, fido_assert_t *assert, int *ms) |
162 | 536 | { |
163 | 536 | unsigned char reply[FIDO_MAXMSG]; |
164 | 536 | int reply_len; |
165 | 536 | int r; |
166 | | |
167 | 536 | fido_assert_reset_rx(assert); |
168 | | |
169 | 536 | if ((reply_len = fido_rx(dev, CTAP_CMD_CBOR, &reply, sizeof(reply), |
170 | 536 | ms)) < 0) { |
171 | 33 | fido_log_debug("%s: fido_rx", __func__); |
172 | 33 | return (FIDO_ERR_RX); |
173 | 33 | } |
174 | | |
175 | | /* start with room for a single assertion */ |
176 | 503 | if ((assert->stmt = calloc(1, sizeof(fido_assert_stmt))) == NULL) |
177 | 503 | return (FIDO_ERR_INTERNAL); |
178 | | |
179 | 500 | assert->stmt_len = 0; |
180 | 500 | assert->stmt_cnt = 1; |
181 | | |
182 | | /* adjust as needed */ |
183 | 500 | if ((r = cbor_parse_reply(reply, (size_t)reply_len, assert, |
184 | 500 | adjust_assert_count)) != FIDO_OK) { |
185 | 104 | fido_log_debug("%s: adjust_assert_count", __func__); |
186 | 104 | return (r); |
187 | 104 | } |
188 | | |
189 | | /* parse the first assertion */ |
190 | 396 | if ((r = cbor_parse_reply(reply, (size_t)reply_len, |
191 | 396 | &assert->stmt[assert->stmt_len], parse_assert_reply)) != FIDO_OK) { |
192 | 47 | fido_log_debug("%s: parse_assert_reply", __func__); |
193 | 47 | return (r); |
194 | 47 | } |
195 | | |
196 | 349 | assert->stmt_len++; |
197 | | |
198 | 349 | return (FIDO_OK); |
199 | 349 | } |
200 | | |
201 | | static int |
202 | | fido_get_next_assert_tx(fido_dev_t *dev, int *ms) |
203 | 228 | { |
204 | 228 | const unsigned char cbor[] = { CTAP_CBOR_NEXT_ASSERT }; |
205 | | |
206 | 228 | if (fido_tx(dev, CTAP_CMD_CBOR, cbor, sizeof(cbor), ms) < 0) { |
207 | 5 | fido_log_debug("%s: fido_tx", __func__); |
208 | 5 | return (FIDO_ERR_TX); |
209 | 5 | } |
210 | | |
211 | 223 | return (FIDO_OK); |
212 | 223 | } |
213 | | |
214 | | static int |
215 | | fido_get_next_assert_rx(fido_dev_t *dev, fido_assert_t *assert, int *ms) |
216 | 223 | { |
217 | 223 | unsigned char reply[FIDO_MAXMSG]; |
218 | 223 | int reply_len; |
219 | 223 | int r; |
220 | | |
221 | 223 | if ((reply_len = fido_rx(dev, CTAP_CMD_CBOR, &reply, sizeof(reply), |
222 | 223 | ms)) < 0) { |
223 | 7 | fido_log_debug("%s: fido_rx", __func__); |
224 | 7 | return (FIDO_ERR_RX); |
225 | 7 | } |
226 | | |
227 | | /* sanity check */ |
228 | 216 | if (assert->stmt_len >= assert->stmt_cnt) { |
229 | 0 | fido_log_debug("%s: stmt_len=%zu, stmt_cnt=%zu", __func__, |
230 | 0 | assert->stmt_len, assert->stmt_cnt); |
231 | 0 | return (FIDO_ERR_INTERNAL); |
232 | 0 | } |
233 | | |
234 | 216 | if ((r = cbor_parse_reply(reply, (size_t)reply_len, |
235 | 216 | &assert->stmt[assert->stmt_len], parse_assert_reply)) != FIDO_OK) { |
236 | 17 | fido_log_debug("%s: parse_assert_reply", __func__); |
237 | 17 | return (r); |
238 | 17 | } |
239 | | |
240 | 199 | return (FIDO_OK); |
241 | 199 | } |
242 | | |
243 | | static int |
244 | | fido_dev_get_assert_wait(fido_dev_t *dev, fido_assert_t *assert, |
245 | | const es256_pk_t *pk, const fido_blob_t *ecdh, const char *pin, int *ms) |
246 | 891 | { |
247 | 891 | int r; |
248 | | |
249 | 891 | if ((r = fido_dev_get_assert_tx(dev, assert, pk, ecdh, pin, |
250 | 891 | ms)) != FIDO_OK || |
251 | 891 | (r = fido_dev_get_assert_rx(dev, assert, ms)) != FIDO_OK) |
252 | 891 | return (r); |
253 | | |
254 | 548 | while (assert->stmt_len < assert->stmt_cnt) { |
255 | 228 | if ((r = fido_get_next_assert_tx(dev, ms)) != FIDO_OK || |
256 | 228 | (r = fido_get_next_assert_rx(dev, assert, ms)) != FIDO_OK) |
257 | 228 | return (r); |
258 | 199 | assert->stmt_len++; |
259 | 199 | } |
260 | | |
261 | 349 | return (FIDO_OK); |
262 | 349 | } |
263 | | |
264 | | static int |
265 | | decrypt_hmac_secrets(const fido_dev_t *dev, fido_assert_t *assert, |
266 | | const fido_blob_t *key) |
267 | 12 | { |
268 | 28 | for (size_t i = 0; i < assert->stmt_cnt; i++) { |
269 | 17 | fido_assert_stmt *stmt = &assert->stmt[i]; |
270 | 17 | if (stmt->authdata_ext.hmac_secret_enc.ptr != NULL) { |
271 | 7 | if (aes256_cbc_dec(dev, key, |
272 | 7 | &stmt->authdata_ext.hmac_secret_enc, |
273 | 7 | &stmt->hmac_secret) < 0) { |
274 | 1 | fido_log_debug("%s: aes256_cbc_dec %zu", |
275 | 1 | __func__, i); |
276 | 1 | return (-1); |
277 | 1 | } |
278 | 7 | } |
279 | 17 | } |
280 | | |
281 | 12 | return (0); |
282 | 12 | } |
283 | | |
284 | | int |
285 | | fido_dev_get_assert(fido_dev_t *dev, fido_assert_t *assert, const char *pin) |
286 | 2.02k | { |
287 | 2.02k | fido_blob_t *ecdh = NULL; |
288 | 2.02k | es256_pk_t *pk = NULL; |
289 | 2.02k | int ms = dev->timeout_ms; |
290 | 2.02k | int r; |
291 | | |
292 | | #ifdef USE_WINHELLO |
293 | | if (dev->flags & FIDO_DEV_WINHELLO) |
294 | | return (fido_winhello_get_assert(dev, assert, pin, ms)); |
295 | | #endif |
296 | | |
297 | 2.02k | if (assert->rp_id == NULL || assert->cdh.ptr == NULL) { |
298 | 4 | fido_log_debug("%s: rp_id=%p, cdh.ptr=%p", __func__, |
299 | 4 | (void *)assert->rp_id, (void *)assert->cdh.ptr); |
300 | 4 | return (FIDO_ERR_INVALID_ARGUMENT); |
301 | 4 | } |
302 | | |
303 | 2.02k | if (fido_dev_is_fido2(dev) == false) { |
304 | 923 | if (pin != NULL || assert->ext.mask != 0) |
305 | 305 | return (FIDO_ERR_UNSUPPORTED_OPTION); |
306 | 618 | return (u2f_authenticate(dev, assert, &ms)); |
307 | 618 | } |
308 | | |
309 | 1.10k | if (pin != NULL || (assert->uv == FIDO_OPT_TRUE && |
310 | 514 | fido_dev_supports_permissions(dev)) || |
311 | 1.10k | (assert->ext.mask & FIDO_EXT_HMAC_SECRET)) { |
312 | 733 | if ((r = fido_do_ecdh(dev, &pk, &ecdh, &ms)) != FIDO_OK) { |
313 | 210 | fido_log_debug("%s: fido_do_ecdh", __func__); |
314 | 210 | goto fail; |
315 | 210 | } |
316 | 891 | } |
317 | | |
318 | 891 | r = fido_dev_get_assert_wait(dev, assert, pk, ecdh, pin, &ms); |
319 | 891 | if (r == FIDO_OK && (assert->ext.mask & FIDO_EXT_HMAC_SECRET)) |
320 | 12 | if (decrypt_hmac_secrets(dev, assert, ecdh) < 0) { |
321 | 1 | fido_log_debug("%s: decrypt_hmac_secrets", __func__); |
322 | 1 | r = FIDO_ERR_INTERNAL; |
323 | 1 | goto fail; |
324 | 1 | } |
325 | | |
326 | 1.10k | fail: |
327 | 1.10k | es256_pk_free(&pk); |
328 | 1.10k | fido_blob_free(&ecdh); |
329 | | |
330 | 1.10k | return (r); |
331 | 891 | } |
332 | | |
333 | | int |
334 | | fido_check_flags(uint8_t flags, fido_opt_t up, fido_opt_t uv) |
335 | 650 | { |
336 | 650 | fido_log_debug("%s: flags=%02x", __func__, flags); |
337 | 650 | fido_log_debug("%s: up=%d, uv=%d", __func__, up, uv); |
338 | | |
339 | 650 | if (up == FIDO_OPT_TRUE && |
340 | 650 | (flags & CTAP_AUTHDATA_USER_PRESENT) == 0) { |
341 | 34 | fido_log_debug("%s: CTAP_AUTHDATA_USER_PRESENT", __func__); |
342 | 34 | return (-1); /* user not present */ |
343 | 34 | } |
344 | | |
345 | 616 | if (uv == FIDO_OPT_TRUE && |
346 | 616 | (flags & CTAP_AUTHDATA_USER_VERIFIED) == 0) { |
347 | 40 | fido_log_debug("%s: CTAP_AUTHDATA_USER_VERIFIED", __func__); |
348 | 40 | return (-1); /* user not verified */ |
349 | 40 | } |
350 | | |
351 | 576 | return (0); |
352 | 576 | } |
353 | | |
354 | | static int |
355 | | check_extensions(int authdata_ext, int ext) |
356 | 402 | { |
357 | | /* XXX: largeBlobKey is not part of extensions map */ |
358 | 402 | ext &= ~FIDO_EXT_LARGEBLOB_KEY; |
359 | 402 | if (authdata_ext != ext) { |
360 | 16 | fido_log_debug("%s: authdata_ext=0x%x != ext=0x%x", __func__, |
361 | 16 | authdata_ext, ext); |
362 | 16 | return (-1); |
363 | 16 | } |
364 | | |
365 | 386 | return (0); |
366 | 386 | } |
367 | | |
368 | | int |
369 | | fido_get_signed_hash(int cose_alg, fido_blob_t *dgst, |
370 | | const fido_blob_t *clientdata, const fido_blob_t *authdata_cbor) |
371 | 380 | { |
372 | 380 | cbor_item_t *item = NULL; |
373 | 380 | unsigned char *authdata_ptr = NULL; |
374 | 380 | size_t authdata_len; |
375 | 380 | struct cbor_load_result cbor; |
376 | 380 | const EVP_MD *md = NULL; |
377 | 380 | EVP_MD_CTX *ctx = NULL; |
378 | 380 | int ok = -1; |
379 | | |
380 | 380 | if ((item = cbor_load(authdata_cbor->ptr, authdata_cbor->len, |
381 | 380 | &cbor)) == NULL || cbor_isa_bytestring(item) == false || |
382 | 380 | cbor_bytestring_is_definite(item) == false) { |
383 | 5 | fido_log_debug("%s: authdata", __func__); |
384 | 5 | goto fail; |
385 | 5 | } |
386 | | |
387 | 375 | authdata_ptr = cbor_bytestring_handle(item); |
388 | 375 | authdata_len = cbor_bytestring_length(item); |
389 | | |
390 | 375 | if (cose_alg != COSE_EDDSA) { |
391 | 263 | if (dgst->len < SHA256_DIGEST_LENGTH || |
392 | 263 | (md = EVP_sha256()) == NULL || |
393 | 263 | (ctx = EVP_MD_CTX_new()) == NULL || |
394 | 263 | EVP_DigestInit_ex(ctx, md, NULL) != 1 || |
395 | 263 | EVP_DigestUpdate(ctx, authdata_ptr, authdata_len) != 1 || |
396 | 263 | EVP_DigestUpdate(ctx, clientdata->ptr, clientdata->len) != 1 || |
397 | 263 | EVP_DigestFinal_ex(ctx, dgst->ptr, NULL) != 1) { |
398 | 34 | fido_log_debug("%s: sha256", __func__); |
399 | 34 | goto fail; |
400 | 34 | } |
401 | 229 | dgst->len = SHA256_DIGEST_LENGTH; |
402 | 229 | } else { |
403 | 112 | if (SIZE_MAX - authdata_len < clientdata->len || |
404 | 112 | dgst->len < authdata_len + clientdata->len) { |
405 | 15 | fido_log_debug("%s: memcpy", __func__); |
406 | 15 | goto fail; |
407 | 15 | } |
408 | 97 | memcpy(dgst->ptr, authdata_ptr, authdata_len); |
409 | 97 | memcpy(dgst->ptr + authdata_len, clientdata->ptr, |
410 | 97 | clientdata->len); |
411 | 97 | dgst->len = authdata_len + clientdata->len; |
412 | 97 | } |
413 | | |
414 | 375 | ok = 0; |
415 | 380 | fail: |
416 | 380 | if (item != NULL) |
417 | 380 | cbor_decref(&item); |
418 | | |
419 | 380 | EVP_MD_CTX_free(ctx); |
420 | | |
421 | 380 | return (ok); |
422 | 326 | } |
423 | | |
424 | | int |
425 | | fido_assert_verify(const fido_assert_t *assert, size_t idx, int cose_alg, |
426 | | const void *pk) |
427 | 32.4k | { |
428 | 32.4k | unsigned char buf[1024]; /* XXX */ |
429 | 32.4k | fido_blob_t dgst; |
430 | 32.4k | const fido_assert_stmt *stmt = NULL; |
431 | 32.4k | int ok = -1; |
432 | 32.4k | int r; |
433 | | |
434 | 32.4k | dgst.ptr = buf; |
435 | 32.4k | dgst.len = sizeof(buf); |
436 | | |
437 | 32.4k | if (idx >= assert->stmt_len || pk == NULL) { |
438 | 117 | r = FIDO_ERR_INVALID_ARGUMENT; |
439 | 117 | goto out; |
440 | 117 | } |
441 | | |
442 | 32.3k | stmt = &assert->stmt[idx]; |
443 | | |
444 | | /* do we have everything we need? */ |
445 | 32.3k | if (assert->cdh.ptr == NULL || assert->rp_id == NULL || |
446 | 32.3k | stmt->authdata_cbor.ptr == NULL || stmt->sig.ptr == NULL) { |
447 | 31.8k | fido_log_debug("%s: cdh=%p, rp_id=%s, authdata=%p, sig=%p", |
448 | 31.8k | __func__, (void *)assert->cdh.ptr, assert->rp_id, |
449 | 31.8k | (void *)stmt->authdata_cbor.ptr, (void *)stmt->sig.ptr); |
450 | 31.8k | r = FIDO_ERR_INVALID_ARGUMENT; |
451 | 31.8k | goto out; |
452 | 31.8k | } |
453 | | |
454 | 473 | if (fido_check_flags(stmt->authdata.flags, assert->up, |
455 | 473 | assert->uv) < 0) { |
456 | 71 | fido_log_debug("%s: fido_check_flags", __func__); |
457 | 71 | r = FIDO_ERR_INVALID_PARAM; |
458 | 71 | goto out; |
459 | 71 | } |
460 | | |
461 | 402 | if (check_extensions(stmt->authdata_ext.mask, assert->ext.mask) < 0) { |
462 | 16 | fido_log_debug("%s: check_extensions", __func__); |
463 | 16 | r = FIDO_ERR_INVALID_PARAM; |
464 | 16 | goto out; |
465 | 16 | } |
466 | | |
467 | 386 | if (fido_check_rp_id(assert->rp_id, stmt->authdata.rp_id_hash) != 0) { |
468 | 82 | fido_log_debug("%s: fido_check_rp_id", __func__); |
469 | 82 | r = FIDO_ERR_INVALID_PARAM; |
470 | 82 | goto out; |
471 | 82 | } |
472 | | |
473 | 304 | if (fido_get_signed_hash(cose_alg, &dgst, &assert->cdh, |
474 | 304 | &stmt->authdata_cbor) < 0) { |
475 | 46 | fido_log_debug("%s: fido_get_signed_hash", __func__); |
476 | 46 | r = FIDO_ERR_INTERNAL; |
477 | 46 | goto out; |
478 | 46 | } |
479 | | |
480 | 258 | switch (cose_alg) { |
481 | 42 | case COSE_ES256: |
482 | 42 | ok = es256_pk_verify_sig(&dgst, pk, &stmt->sig); |
483 | 42 | break; |
484 | 148 | case COSE_RS256: |
485 | 148 | ok = rs256_pk_verify_sig(&dgst, pk, &stmt->sig); |
486 | 148 | break; |
487 | 68 | case COSE_EDDSA: |
488 | 68 | ok = eddsa_pk_verify_sig(&dgst, pk, &stmt->sig); |
489 | 68 | break; |
490 | 0 | default: |
491 | 0 | fido_log_debug("%s: unsupported cose_alg %d", __func__, |
492 | 0 | cose_alg); |
493 | 0 | r = FIDO_ERR_UNSUPPORTED_OPTION; |
494 | 0 | goto out; |
495 | 258 | } |
496 | | |
497 | 258 | if (ok < 0) |
498 | 258 | r = FIDO_ERR_INVALID_SIG; |
499 | 258 | else |
500 | 258 | r = FIDO_OK; |
501 | 32.4k | out: |
502 | 32.4k | explicit_bzero(buf, sizeof(buf)); |
503 | | |
504 | 32.4k | return (r); |
505 | 258 | } |
506 | | |
507 | | int |
508 | | fido_assert_set_clientdata(fido_assert_t *assert, const unsigned char *data, |
509 | | size_t data_len) |
510 | 0 | { |
511 | 0 | if (!fido_blob_is_empty(&assert->cdh) || |
512 | 0 | fido_blob_set(&assert->cd, data, data_len) < 0) { |
513 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
514 | 0 | } |
515 | 0 | if (fido_sha256(&assert->cdh, data, data_len) < 0) { |
516 | 0 | fido_blob_reset(&assert->cd); |
517 | 0 | return (FIDO_ERR_INTERNAL); |
518 | 0 | } |
519 | | |
520 | 0 | return (FIDO_OK); |
521 | 0 | } |
522 | | |
523 | | int |
524 | | fido_assert_set_clientdata_hash(fido_assert_t *assert, |
525 | | const unsigned char *hash, size_t hash_len) |
526 | 36.5k | { |
527 | 36.5k | if (!fido_blob_is_empty(&assert->cd) || |
528 | 36.5k | fido_blob_set(&assert->cdh, hash, hash_len) < 0) |
529 | 439 | return (FIDO_ERR_INVALID_ARGUMENT); |
530 | | |
531 | 36.0k | return (FIDO_OK); |
532 | 36.0k | } |
533 | | |
534 | | int |
535 | | fido_assert_set_hmac_salt(fido_assert_t *assert, const unsigned char *salt, |
536 | | size_t salt_len) |
537 | 4.05k | { |
538 | 4.05k | if ((salt_len != 32 && salt_len != 64) || |
539 | 4.05k | fido_blob_set(&assert->ext.hmac_salt, salt, salt_len) < 0) |
540 | 3.94k | return (FIDO_ERR_INVALID_ARGUMENT); |
541 | | |
542 | 111 | return (FIDO_OK); |
543 | 111 | } |
544 | | |
545 | | int |
546 | | fido_assert_set_hmac_secret(fido_assert_t *assert, size_t idx, |
547 | | const unsigned char *secret, size_t secret_len) |
548 | 0 | { |
549 | 0 | if (idx >= assert->stmt_len || (secret_len != 32 && secret_len != 64) || |
550 | 0 | fido_blob_set(&assert->stmt[idx].hmac_secret, secret, |
551 | 0 | secret_len) < 0) |
552 | 0 | return (FIDO_ERR_INVALID_ARGUMENT); |
553 | | |
554 | 0 | return (FIDO_OK); |
555 | 0 | } |
556 | | |
557 | | int |
558 | | fido_assert_set_rp(fido_assert_t *assert, const char *id) |
559 | 36.5k | { |
560 | 36.5k | if (assert->rp_id != NULL) { |
561 | 2.02k | free(assert->rp_id); |
562 | 2.02k | assert->rp_id = NULL; |
563 | 2.02k | } |
564 | | |
565 | 36.5k | if (id == NULL) |
566 | 36.5k | return (FIDO_ERR_INVALID_ARGUMENT); |
567 | | |
568 | 36.2k | if ((assert->rp_id = strdup(id)) == NULL) |
569 | 36.2k | return (FIDO_ERR_INTERNAL); |
570 | | |
571 | 36.1k | return (FIDO_OK); |
572 | 36.1k | } |
573 | | |
574 | | int |
575 | | fido_assert_allow_cred(fido_assert_t *assert, const unsigned char *ptr, |
576 | | size_t len) |
577 | 63.3k | { |
578 | 63.3k | fido_blob_t id; |
579 | 63.3k | fido_blob_t *list_ptr; |
580 | 63.3k | int r; |
581 | | |
582 | 63.3k | memset(&id, 0, sizeof(id)); |
583 | | |
584 | 63.3k | if (assert->allow_list.len == SIZE_MAX) { |
585 | 0 | r = FIDO_ERR_INVALID_ARGUMENT; |
586 | 0 | goto fail; |
587 | 0 | } |
588 | | |
589 | 63.3k | if (fido_blob_set(&id, ptr, len) < 0 || (list_ptr = |
590 | 62.8k | recallocarray(assert->allow_list.ptr, assert->allow_list.len, |
591 | 62.8k | assert->allow_list.len + 1, sizeof(fido_blob_t))) == NULL) { |
592 | 651 | r = FIDO_ERR_INVALID_ARGUMENT; |
593 | 651 | goto fail; |
594 | 651 | } |
595 | | |
596 | 62.7k | list_ptr[assert->allow_list.len++] = id; |
597 | 62.7k | assert->allow_list.ptr = list_ptr; |
598 | | |
599 | 62.7k | return (FIDO_OK); |
600 | 651 | fail: |
601 | 651 | free(id.ptr); |
602 | | |
603 | 651 | return (r); |
604 | | |
605 | 62.7k | } |
606 | | |
607 | | int |
608 | | fido_assert_set_extensions(fido_assert_t *assert, int ext) |
609 | 33.9k | { |
610 | 33.9k | if (ext == 0) |
611 | 1.18k | assert->ext.mask = 0; |
612 | 32.7k | else { |
613 | 32.7k | if ((ext & FIDO_EXT_ASSERT_MASK) != ext) |
614 | 31.2k | return (FIDO_ERR_INVALID_ARGUMENT); |
615 | 1.47k | assert->ext.mask |= ext; |
616 | 1.47k | } |
617 | | |
618 | 33.9k | return (FIDO_OK); |
619 | 33.9k | } |
620 | | |
621 | | int |
622 | | fido_assert_set_options(fido_assert_t *assert, bool up, bool uv) |
623 | 0 | { |
624 | 0 | assert->up = up ? FIDO_OPT_TRUE : FIDO_OPT_FALSE; |
625 | 0 | assert->uv = uv ? FIDO_OPT_TRUE : FIDO_OPT_FALSE; |
626 | |
|
627 | 0 | return (FIDO_OK); |
628 | 0 | } |
629 | | |
630 | | int |
631 | | fido_assert_set_up(fido_assert_t *assert, fido_opt_t up) |
632 | 15.7k | { |
633 | 15.7k | assert->up = up; |
634 | | |
635 | 15.7k | return (FIDO_OK); |
636 | 15.7k | } |
637 | | |
638 | | int |
639 | | fido_assert_set_uv(fido_assert_t *assert, fido_opt_t uv) |
640 | 1.26k | { |
641 | 1.26k | assert->uv = uv; |
642 | | |
643 | 1.26k | return (FIDO_OK); |
644 | 1.26k | } |
645 | | |
646 | | const unsigned char * |
647 | | fido_assert_clientdata_hash_ptr(const fido_assert_t *assert) |
648 | 32.5k | { |
649 | 32.5k | return (assert->cdh.ptr); |
650 | 32.5k | } |
651 | | |
652 | | size_t |
653 | | fido_assert_clientdata_hash_len(const fido_assert_t *assert) |
654 | 32.5k | { |
655 | 32.5k | return (assert->cdh.len); |
656 | 32.5k | } |
657 | | |
658 | | fido_assert_t * |
659 | | fido_assert_new(void) |
660 | 34.9k | { |
661 | 34.9k | return (calloc(1, sizeof(fido_assert_t))); |
662 | 34.9k | } |
663 | | |
664 | | void |
665 | | fido_assert_reset_tx(fido_assert_t *assert) |
666 | 34.8k | { |
667 | 34.8k | free(assert->rp_id); |
668 | 34.8k | fido_blob_reset(&assert->cd); |
669 | 34.8k | fido_blob_reset(&assert->cdh); |
670 | 34.8k | fido_blob_reset(&assert->ext.hmac_salt); |
671 | 34.8k | fido_free_blob_array(&assert->allow_list); |
672 | 34.8k | memset(&assert->ext, 0, sizeof(assert->ext)); |
673 | 34.8k | memset(&assert->allow_list, 0, sizeof(assert->allow_list)); |
674 | 34.8k | assert->rp_id = NULL; |
675 | 34.8k | assert->up = FIDO_OPT_OMIT; |
676 | 34.8k | assert->uv = FIDO_OPT_OMIT; |
677 | 34.8k | } |
678 | | |
679 | | static void fido_assert_reset_extattr(fido_assert_extattr_t *ext) |
680 | 65.2k | { |
681 | 65.2k | fido_blob_reset(&ext->hmac_secret_enc); |
682 | 65.2k | fido_blob_reset(&ext->blob); |
683 | 65.2k | memset(ext, 0, sizeof(*ext)); |
684 | 65.2k | } |
685 | | |
686 | | void |
687 | | fido_assert_reset_rx(fido_assert_t *assert) |
688 | 35.3k | { |
689 | 99.3k | for (size_t i = 0; i < assert->stmt_cnt; i++) { |
690 | 63.9k | free(assert->stmt[i].user.icon); |
691 | 63.9k | free(assert->stmt[i].user.name); |
692 | 63.9k | free(assert->stmt[i].user.display_name); |
693 | 63.9k | fido_blob_reset(&assert->stmt[i].user.id); |
694 | 63.9k | fido_blob_reset(&assert->stmt[i].id); |
695 | 63.9k | fido_blob_reset(&assert->stmt[i].hmac_secret); |
696 | 63.9k | fido_blob_reset(&assert->stmt[i].authdata_cbor); |
697 | 63.9k | fido_blob_reset(&assert->stmt[i].largeblob_key); |
698 | 63.9k | fido_blob_reset(&assert->stmt[i].sig); |
699 | 63.9k | fido_assert_reset_extattr(&assert->stmt[i].authdata_ext); |
700 | 63.9k | memset(&assert->stmt[i], 0, sizeof(assert->stmt[i])); |
701 | 63.9k | } |
702 | 35.3k | free(assert->stmt); |
703 | 35.3k | assert->stmt = NULL; |
704 | 35.3k | assert->stmt_len = 0; |
705 | 35.3k | assert->stmt_cnt = 0; |
706 | 35.3k | } |
707 | | |
708 | | void |
709 | | fido_assert_free(fido_assert_t **assert_p) |
710 | 34.8k | { |
711 | 34.8k | fido_assert_t *assert; |
712 | | |
713 | 34.8k | if (assert_p == NULL || (assert = *assert_p) == NULL) |
714 | 34.8k | return; |
715 | 34.8k | fido_assert_reset_tx(assert); |
716 | 34.8k | fido_assert_reset_rx(assert); |
717 | 34.8k | free(assert); |
718 | 34.8k | *assert_p = NULL; |
719 | 34.8k | } |
720 | | |
721 | | size_t |
722 | | fido_assert_count(const fido_assert_t *assert) |
723 | 34.9k | { |
724 | 34.9k | return (assert->stmt_len); |
725 | 34.9k | } |
726 | | |
727 | | const char * |
728 | | fido_assert_rp_id(const fido_assert_t *assert) |
729 | 32.5k | { |
730 | 32.5k | return (assert->rp_id); |
731 | 32.5k | } |
732 | | |
733 | | uint8_t |
734 | | fido_assert_flags(const fido_assert_t *assert, size_t idx) |
735 | 32.5k | { |
736 | 32.5k | if (idx >= assert->stmt_len) |
737 | 2.34k | return (0); |
738 | | |
739 | 30.2k | return (assert->stmt[idx].authdata.flags); |
740 | 30.2k | } |
741 | | |
742 | | uint32_t |
743 | | fido_assert_sigcount(const fido_assert_t *assert, size_t idx) |
744 | 32.5k | { |
745 | 32.5k | if (idx >= assert->stmt_len) |
746 | 2.34k | return (0); |
747 | | |
748 | 30.2k | return (assert->stmt[idx].authdata.sigcount); |
749 | 30.2k | } |
750 | | |
751 | | const unsigned char * |
752 | | fido_assert_authdata_ptr(const fido_assert_t *assert, size_t idx) |
753 | 32.5k | { |
754 | 32.5k | if (idx >= assert->stmt_len) |
755 | 2.34k | return (NULL); |
756 | | |
757 | 30.2k | return (assert->stmt[idx].authdata_cbor.ptr); |
758 | 30.2k | } |
759 | | |
760 | | size_t |
761 | | fido_assert_authdata_len(const fido_assert_t *assert, size_t idx) |
762 | 32.5k | { |
763 | 32.5k | if (idx >= assert->stmt_len) |
764 | 2.34k | return (0); |
765 | | |
766 | 30.2k | return (assert->stmt[idx].authdata_cbor.len); |
767 | 30.2k | } |
768 | | |
769 | | const unsigned char * |
770 | | fido_assert_sig_ptr(const fido_assert_t *assert, size_t idx) |
771 | 32.5k | { |
772 | 32.5k | if (idx >= assert->stmt_len) |
773 | 2.34k | return (NULL); |
774 | | |
775 | 30.2k | return (assert->stmt[idx].sig.ptr); |
776 | 30.2k | } |
777 | | |
778 | | size_t |
779 | | fido_assert_sig_len(const fido_assert_t *assert, size_t idx) |
780 | 32.5k | { |
781 | 32.5k | if (idx >= assert->stmt_len) |
782 | 2.34k | return (0); |
783 | | |
784 | 30.2k | return (assert->stmt[idx].sig.len); |
785 | 30.2k | } |
786 | | |
787 | | const unsigned char * |
788 | | fido_assert_id_ptr(const fido_assert_t *assert, size_t idx) |
789 | 32.5k | { |
790 | 32.5k | if (idx >= assert->stmt_len) |
791 | 2.34k | return (NULL); |
792 | | |
793 | 30.2k | return (assert->stmt[idx].id.ptr); |
794 | 30.2k | } |
795 | | |
796 | | size_t |
797 | | fido_assert_id_len(const fido_assert_t *assert, size_t idx) |
798 | 32.5k | { |
799 | 32.5k | if (idx >= assert->stmt_len) |
800 | 2.34k | return (0); |
801 | | |
802 | 30.2k | return (assert->stmt[idx].id.len); |
803 | 30.2k | } |
804 | | |
805 | | const unsigned char * |
806 | | fido_assert_user_id_ptr(const fido_assert_t *assert, size_t idx) |
807 | 32.5k | { |
808 | 32.5k | if (idx >= assert->stmt_len) |
809 | 2.34k | return (NULL); |
810 | | |
811 | 30.2k | return (assert->stmt[idx].user.id.ptr); |
812 | 30.2k | } |
813 | | |
814 | | size_t |
815 | | fido_assert_user_id_len(const fido_assert_t *assert, size_t idx) |
816 | 32.5k | { |
817 | 32.5k | if (idx >= assert->stmt_len) |
818 | 2.34k | return (0); |
819 | | |
820 | 30.2k | return (assert->stmt[idx].user.id.len); |
821 | 30.2k | } |
822 | | |
823 | | const char * |
824 | | fido_assert_user_icon(const fido_assert_t *assert, size_t idx) |
825 | 32.5k | { |
826 | 32.5k | if (idx >= assert->stmt_len) |
827 | 2.34k | return (NULL); |
828 | | |
829 | 30.2k | return (assert->stmt[idx].user.icon); |
830 | 30.2k | } |
831 | | |
832 | | const char * |
833 | | fido_assert_user_name(const fido_assert_t *assert, size_t idx) |
834 | 32.5k | { |
835 | 32.5k | if (idx >= assert->stmt_len) |
836 | 2.34k | return (NULL); |
837 | | |
838 | 30.2k | return (assert->stmt[idx].user.name); |
839 | 30.2k | } |
840 | | |
841 | | const char * |
842 | | fido_assert_user_display_name(const fido_assert_t *assert, size_t idx) |
843 | 32.5k | { |
844 | 32.5k | if (idx >= assert->stmt_len) |
845 | 2.34k | return (NULL); |
846 | | |
847 | 30.2k | return (assert->stmt[idx].user.display_name); |
848 | 30.2k | } |
849 | | |
850 | | const unsigned char * |
851 | | fido_assert_hmac_secret_ptr(const fido_assert_t *assert, size_t idx) |
852 | 32.5k | { |
853 | 32.5k | if (idx >= assert->stmt_len) |
854 | 2.34k | return (NULL); |
855 | | |
856 | 30.2k | return (assert->stmt[idx].hmac_secret.ptr); |
857 | 30.2k | } |
858 | | |
859 | | size_t |
860 | | fido_assert_hmac_secret_len(const fido_assert_t *assert, size_t idx) |
861 | 32.5k | { |
862 | 32.5k | if (idx >= assert->stmt_len) |
863 | 2.34k | return (0); |
864 | | |
865 | 30.2k | return (assert->stmt[idx].hmac_secret.len); |
866 | 30.2k | } |
867 | | |
868 | | const unsigned char * |
869 | | fido_assert_largeblob_key_ptr(const fido_assert_t *assert, size_t idx) |
870 | 32.5k | { |
871 | 32.5k | if (idx >= assert->stmt_len) |
872 | 2.34k | return (NULL); |
873 | | |
874 | 30.2k | return (assert->stmt[idx].largeblob_key.ptr); |
875 | 30.2k | } |
876 | | |
877 | | size_t |
878 | | fido_assert_largeblob_key_len(const fido_assert_t *assert, size_t idx) |
879 | 32.5k | { |
880 | 32.5k | if (idx >= assert->stmt_len) |
881 | 2.34k | return (0); |
882 | | |
883 | 30.2k | return (assert->stmt[idx].largeblob_key.len); |
884 | 30.2k | } |
885 | | |
886 | | const unsigned char * |
887 | | fido_assert_blob_ptr(const fido_assert_t *assert, size_t idx) |
888 | 32.5k | { |
889 | 32.5k | if (idx >= assert->stmt_len) |
890 | 2.34k | return (NULL); |
891 | | |
892 | 30.2k | return (assert->stmt[idx].authdata_ext.blob.ptr); |
893 | 30.2k | } |
894 | | |
895 | | size_t |
896 | | fido_assert_blob_len(const fido_assert_t *assert, size_t idx) |
897 | 32.5k | { |
898 | 32.5k | if (idx >= assert->stmt_len) |
899 | 2.34k | return (0); |
900 | | |
901 | 30.2k | return (assert->stmt[idx].authdata_ext.blob.len); |
902 | 30.2k | } |
903 | | |
904 | | static void |
905 | | fido_assert_clean_authdata(fido_assert_stmt *stmt) |
906 | 1.32k | { |
907 | 1.32k | fido_blob_reset(&stmt->authdata_cbor); |
908 | 1.32k | fido_assert_reset_extattr(&stmt->authdata_ext); |
909 | 1.32k | memset(&stmt->authdata, 0, sizeof(stmt->authdata)); |
910 | 1.32k | } |
911 | | |
912 | | int |
913 | | fido_assert_set_authdata(fido_assert_t *assert, size_t idx, |
914 | | const unsigned char *ptr, size_t len) |
915 | 65.0k | { |
916 | 65.0k | cbor_item_t *item = NULL; |
917 | 65.0k | fido_assert_stmt *stmt = NULL; |
918 | 65.0k | struct cbor_load_result cbor; |
919 | 65.0k | int r; |
920 | | |
921 | 65.0k | if (idx >= assert->stmt_len || ptr == NULL || len == 0) |
922 | 63.9k | return (FIDO_ERR_INVALID_ARGUMENT); |
923 | | |
924 | 1.17k | stmt = &assert->stmt[idx]; |
925 | 1.17k | fido_assert_clean_authdata(stmt); |
926 | | |
927 | 1.17k | if ((item = cbor_load(ptr, len, &cbor)) == NULL) { |
928 | 22 | fido_log_debug("%s: cbor_load", __func__); |
929 | 22 | r = FIDO_ERR_INVALID_ARGUMENT; |
930 | 22 | goto fail; |
931 | 22 | } |
932 | | |
933 | 1.15k | if (cbor_decode_assert_authdata(item, &stmt->authdata_cbor, |
934 | 1.15k | &stmt->authdata, &stmt->authdata_ext) < 0) { |
935 | 30 | fido_log_debug("%s: cbor_decode_assert_authdata", __func__); |
936 | 30 | r = FIDO_ERR_INVALID_ARGUMENT; |
937 | 30 | goto fail; |
938 | 30 | } |
939 | | |
940 | 1.12k | r = FIDO_OK; |
941 | 1.17k | fail: |
942 | 1.17k | if (item != NULL) |
943 | 1.17k | cbor_decref(&item); |
944 | | |
945 | 1.17k | if (r != FIDO_OK) |
946 | 1.17k | fido_assert_clean_authdata(stmt); |
947 | | |
948 | 1.17k | return (r); |
949 | 1.12k | } |
950 | | |
951 | | int |
952 | | fido_assert_set_authdata_raw(fido_assert_t *assert, size_t idx, |
953 | | const unsigned char *ptr, size_t len) |
954 | 63.9k | { |
955 | 63.9k | cbor_item_t *item = NULL; |
956 | 63.9k | fido_assert_stmt *stmt = NULL; |
957 | 63.9k | int r; |
958 | | |
959 | 63.9k | if (idx >= assert->stmt_len || ptr == NULL || len == 0) |
960 | 63.9k | return (FIDO_ERR_INVALID_ARGUMENT); |
961 | | |
962 | 50 | stmt = &assert->stmt[idx]; |
963 | 50 | fido_assert_clean_authdata(stmt); |
964 | | |
965 | 50 | if ((item = cbor_build_bytestring(ptr, len)) == NULL) { |
966 | 2 | fido_log_debug("%s: cbor_build_bytestring", __func__); |
967 | 2 | r = FIDO_ERR_INTERNAL; |
968 | 2 | goto fail; |
969 | 2 | } |
970 | | |
971 | 48 | if (cbor_decode_assert_authdata(item, &stmt->authdata_cbor, |
972 | 48 | &stmt->authdata, &stmt->authdata_ext) < 0) { |
973 | 38 | fido_log_debug("%s: cbor_decode_assert_authdata", __func__); |
974 | 38 | r = FIDO_ERR_INVALID_ARGUMENT; |
975 | 38 | goto fail; |
976 | 38 | } |
977 | | |
978 | 10 | r = FIDO_OK; |
979 | 50 | fail: |
980 | 50 | if (item != NULL) |
981 | 50 | cbor_decref(&item); |
982 | | |
983 | 50 | if (r != FIDO_OK) |
984 | 50 | fido_assert_clean_authdata(stmt); |
985 | | |
986 | 50 | return (r); |
987 | 10 | } |
988 | | |
989 | | int |
990 | | fido_assert_set_sig(fido_assert_t *a, size_t idx, const unsigned char *ptr, |
991 | | size_t len) |
992 | 65.0k | { |
993 | 65.0k | if (idx >= a->stmt_len || ptr == NULL || len == 0) |
994 | 63.9k | return (FIDO_ERR_INVALID_ARGUMENT); |
995 | 1.11k | if (fido_blob_set(&a->stmt[idx].sig, ptr, len) < 0) |
996 | 14 | return (FIDO_ERR_INTERNAL); |
997 | | |
998 | 1.10k | return (FIDO_OK); |
999 | 1.10k | } |
1000 | | |
1001 | | /* XXX shrinking leaks memory; fortunately that shouldn't happen */ |
1002 | | int |
1003 | | fido_assert_set_count(fido_assert_t *assert, size_t n) |
1004 | 33.1k | { |
1005 | 33.1k | void *new_stmt; |
1006 | | |
1007 | 33.1k | #ifdef FIDO_FUZZ |
1008 | 33.1k | if (n > UINT8_MAX) { |
1009 | 44 | fido_log_debug("%s: n > UINT8_MAX", __func__); |
1010 | 44 | return (FIDO_ERR_INTERNAL); |
1011 | 44 | } |
1012 | 33.1k | #endif |
1013 | | |
1014 | 33.1k | new_stmt = recallocarray(assert->stmt, assert->stmt_cnt, n, |
1015 | 33.1k | sizeof(fido_assert_stmt)); |
1016 | 33.1k | if (new_stmt == NULL) |
1017 | 33.1k | return (FIDO_ERR_INTERNAL); |
1018 | | |
1019 | 33.0k | assert->stmt = new_stmt; |
1020 | 33.0k | assert->stmt_cnt = n; |
1021 | 33.0k | assert->stmt_len = n; |
1022 | | |
1023 | 33.0k | return (FIDO_OK); |
1024 | 33.0k | } |