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85bcbc78 DB |
1 | /* |
2 | * QEMU crypto TLS x509 credential support | |
3 | * | |
4 | * Copyright (c) 2015 Red Hat, Inc. | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | * | |
19 | */ | |
20 | ||
42f7a448 | 21 | #include "qemu/osdep.h" |
85bcbc78 DB |
22 | #include "crypto/tlscredsx509.h" |
23 | #include "crypto/tlscredspriv.h" | |
1d7b5b4a | 24 | #include "crypto/secret.h" |
da34e65c | 25 | #include "qapi/error.h" |
85bcbc78 DB |
26 | #include "qom/object_interfaces.h" |
27 | #include "trace.h" | |
28 | ||
29 | ||
30 | #ifdef CONFIG_GNUTLS | |
31 | ||
9a2fd434 DB |
32 | #include <gnutls/x509.h> |
33 | ||
34 | ||
35 | static int | |
36 | qcrypto_tls_creds_check_cert_times(gnutls_x509_crt_t cert, | |
37 | const char *certFile, | |
38 | bool isServer, | |
39 | bool isCA, | |
40 | Error **errp) | |
41 | { | |
42 | time_t now = time(NULL); | |
43 | ||
44 | if (now == ((time_t)-1)) { | |
45 | error_setg_errno(errp, errno, "cannot get current time"); | |
46 | return -1; | |
47 | } | |
48 | ||
49 | if (gnutls_x509_crt_get_expiration_time(cert) < now) { | |
50 | error_setg(errp, | |
51 | (isCA ? | |
52 | "The CA certificate %s has expired" : | |
53 | (isServer ? | |
54 | "The server certificate %s has expired" : | |
55 | "The client certificate %s has expired")), | |
56 | certFile); | |
57 | return -1; | |
58 | } | |
59 | ||
60 | if (gnutls_x509_crt_get_activation_time(cert) > now) { | |
61 | error_setg(errp, | |
62 | (isCA ? | |
63 | "The CA certificate %s is not yet active" : | |
64 | (isServer ? | |
65 | "The server certificate %s is not yet active" : | |
66 | "The client certificate %s is not yet active")), | |
67 | certFile); | |
68 | return -1; | |
69 | } | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | ||
75 | #if LIBGNUTLS_VERSION_NUMBER >= 2 | |
76 | /* | |
77 | * The gnutls_x509_crt_get_basic_constraints function isn't | |
78 | * available in GNUTLS 1.0.x branches. This isn't critical | |
79 | * though, since gnutls_certificate_verify_peers2 will do | |
80 | * pretty much the same check at runtime, so we can just | |
81 | * disable this code | |
82 | */ | |
83 | static int | |
84 | qcrypto_tls_creds_check_cert_basic_constraints(QCryptoTLSCredsX509 *creds, | |
85 | gnutls_x509_crt_t cert, | |
86 | const char *certFile, | |
87 | bool isServer, | |
88 | bool isCA, | |
89 | Error **errp) | |
90 | { | |
91 | int status; | |
92 | ||
93 | status = gnutls_x509_crt_get_basic_constraints(cert, NULL, NULL, NULL); | |
94 | trace_qcrypto_tls_creds_x509_check_basic_constraints( | |
95 | creds, certFile, status); | |
96 | ||
97 | if (status > 0) { /* It is a CA cert */ | |
98 | if (!isCA) { | |
99 | error_setg(errp, isServer ? | |
100 | "The certificate %s basic constraints show a CA, " | |
101 | "but we need one for a server" : | |
102 | "The certificate %s basic constraints show a CA, " | |
103 | "but we need one for a client", | |
104 | certFile); | |
105 | return -1; | |
106 | } | |
107 | } else if (status == 0) { /* It is not a CA cert */ | |
108 | if (isCA) { | |
109 | error_setg(errp, | |
110 | "The certificate %s basic constraints do not " | |
111 | "show a CA", | |
112 | certFile); | |
113 | return -1; | |
114 | } | |
115 | } else if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { | |
116 | /* Missing basicConstraints */ | |
117 | if (isCA) { | |
118 | error_setg(errp, | |
119 | "The certificate %s is missing basic constraints " | |
120 | "for a CA", | |
121 | certFile); | |
122 | return -1; | |
123 | } | |
124 | } else { /* General error */ | |
125 | error_setg(errp, | |
126 | "Unable to query certificate %s basic constraints: %s", | |
127 | certFile, gnutls_strerror(status)); | |
128 | return -1; | |
129 | } | |
130 | ||
131 | return 0; | |
132 | } | |
133 | #endif | |
134 | ||
135 | ||
136 | static int | |
137 | qcrypto_tls_creds_check_cert_key_usage(QCryptoTLSCredsX509 *creds, | |
138 | gnutls_x509_crt_t cert, | |
139 | const char *certFile, | |
140 | bool isCA, | |
141 | Error **errp) | |
142 | { | |
143 | int status; | |
144 | unsigned int usage = 0; | |
145 | unsigned int critical = 0; | |
146 | ||
147 | status = gnutls_x509_crt_get_key_usage(cert, &usage, &critical); | |
148 | trace_qcrypto_tls_creds_x509_check_key_usage( | |
149 | creds, certFile, status, usage, critical); | |
150 | ||
151 | if (status < 0) { | |
152 | if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { | |
153 | usage = isCA ? GNUTLS_KEY_KEY_CERT_SIGN : | |
154 | GNUTLS_KEY_DIGITAL_SIGNATURE|GNUTLS_KEY_KEY_ENCIPHERMENT; | |
155 | } else { | |
156 | error_setg(errp, | |
157 | "Unable to query certificate %s key usage: %s", | |
158 | certFile, gnutls_strerror(status)); | |
159 | return -1; | |
160 | } | |
161 | } | |
162 | ||
163 | if (isCA) { | |
164 | if (!(usage & GNUTLS_KEY_KEY_CERT_SIGN)) { | |
165 | if (critical) { | |
166 | error_setg(errp, | |
167 | "Certificate %s usage does not permit " | |
168 | "certificate signing", certFile); | |
169 | return -1; | |
170 | } | |
171 | } | |
172 | } else { | |
173 | if (!(usage & GNUTLS_KEY_DIGITAL_SIGNATURE)) { | |
174 | if (critical) { | |
175 | error_setg(errp, | |
176 | "Certificate %s usage does not permit digital " | |
177 | "signature", certFile); | |
178 | return -1; | |
179 | } | |
180 | } | |
181 | if (!(usage & GNUTLS_KEY_KEY_ENCIPHERMENT)) { | |
182 | if (critical) { | |
183 | error_setg(errp, | |
184 | "Certificate %s usage does not permit key " | |
185 | "encipherment", certFile); | |
186 | return -1; | |
187 | } | |
188 | } | |
189 | } | |
190 | ||
191 | return 0; | |
192 | } | |
193 | ||
194 | ||
195 | static int | |
196 | qcrypto_tls_creds_check_cert_key_purpose(QCryptoTLSCredsX509 *creds, | |
197 | gnutls_x509_crt_t cert, | |
198 | const char *certFile, | |
199 | bool isServer, | |
200 | Error **errp) | |
201 | { | |
202 | int status; | |
203 | size_t i; | |
204 | unsigned int purposeCritical; | |
205 | unsigned int critical; | |
206 | char *buffer = NULL; | |
207 | size_t size; | |
208 | bool allowClient = false, allowServer = false; | |
209 | ||
210 | critical = 0; | |
211 | for (i = 0; ; i++) { | |
212 | size = 0; | |
213 | status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer, | |
214 | &size, NULL); | |
215 | ||
216 | if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { | |
217 | ||
218 | /* If there is no data at all, then we must allow | |
219 | client/server to pass */ | |
220 | if (i == 0) { | |
221 | allowServer = allowClient = true; | |
222 | } | |
223 | break; | |
224 | } | |
225 | if (status != GNUTLS_E_SHORT_MEMORY_BUFFER) { | |
226 | error_setg(errp, | |
227 | "Unable to query certificate %s key purpose: %s", | |
228 | certFile, gnutls_strerror(status)); | |
229 | return -1; | |
230 | } | |
231 | ||
232 | buffer = g_new0(char, size); | |
233 | ||
234 | status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer, | |
235 | &size, &purposeCritical); | |
236 | ||
237 | if (status < 0) { | |
238 | trace_qcrypto_tls_creds_x509_check_key_purpose( | |
239 | creds, certFile, status, "<none>", purposeCritical); | |
240 | g_free(buffer); | |
241 | error_setg(errp, | |
242 | "Unable to query certificate %s key purpose: %s", | |
243 | certFile, gnutls_strerror(status)); | |
244 | return -1; | |
245 | } | |
246 | trace_qcrypto_tls_creds_x509_check_key_purpose( | |
247 | creds, certFile, status, buffer, purposeCritical); | |
248 | if (purposeCritical) { | |
249 | critical = true; | |
250 | } | |
251 | ||
252 | if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_SERVER)) { | |
253 | allowServer = true; | |
254 | } else if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_CLIENT)) { | |
255 | allowClient = true; | |
256 | } else if (g_str_equal(buffer, GNUTLS_KP_ANY)) { | |
257 | allowServer = allowClient = true; | |
258 | } | |
259 | ||
260 | g_free(buffer); | |
0e1d0245 | 261 | buffer = NULL; |
9a2fd434 DB |
262 | } |
263 | ||
264 | if (isServer) { | |
265 | if (!allowServer) { | |
266 | if (critical) { | |
267 | error_setg(errp, | |
268 | "Certificate %s purpose does not allow " | |
269 | "use with a TLS server", certFile); | |
270 | return -1; | |
271 | } | |
272 | } | |
273 | } else { | |
274 | if (!allowClient) { | |
275 | if (critical) { | |
276 | error_setg(errp, | |
277 | "Certificate %s purpose does not allow use " | |
278 | "with a TLS client", certFile); | |
279 | return -1; | |
280 | } | |
281 | } | |
282 | } | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
287 | ||
288 | static int | |
289 | qcrypto_tls_creds_check_cert(QCryptoTLSCredsX509 *creds, | |
290 | gnutls_x509_crt_t cert, | |
291 | const char *certFile, | |
292 | bool isServer, | |
293 | bool isCA, | |
294 | Error **errp) | |
295 | { | |
296 | if (qcrypto_tls_creds_check_cert_times(cert, certFile, | |
297 | isServer, isCA, | |
298 | errp) < 0) { | |
299 | return -1; | |
300 | } | |
301 | ||
302 | #if LIBGNUTLS_VERSION_NUMBER >= 2 | |
303 | if (qcrypto_tls_creds_check_cert_basic_constraints(creds, | |
304 | cert, certFile, | |
305 | isServer, isCA, | |
306 | errp) < 0) { | |
307 | return -1; | |
308 | } | |
309 | #endif | |
310 | ||
311 | if (qcrypto_tls_creds_check_cert_key_usage(creds, | |
312 | cert, certFile, | |
313 | isCA, errp) < 0) { | |
314 | return -1; | |
315 | } | |
316 | ||
317 | if (!isCA && | |
318 | qcrypto_tls_creds_check_cert_key_purpose(creds, | |
319 | cert, certFile, | |
320 | isServer, errp) < 0) { | |
321 | return -1; | |
322 | } | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | ||
328 | static int | |
329 | qcrypto_tls_creds_check_cert_pair(gnutls_x509_crt_t cert, | |
330 | const char *certFile, | |
331 | gnutls_x509_crt_t *cacerts, | |
332 | size_t ncacerts, | |
333 | const char *cacertFile, | |
334 | bool isServer, | |
335 | Error **errp) | |
336 | { | |
337 | unsigned int status; | |
338 | ||
339 | if (gnutls_x509_crt_list_verify(&cert, 1, | |
340 | cacerts, ncacerts, | |
341 | NULL, 0, | |
342 | 0, &status) < 0) { | |
343 | error_setg(errp, isServer ? | |
344 | "Unable to verify server certificate %s against " | |
345 | "CA certificate %s" : | |
346 | "Unable to verify client certificate %s against " | |
347 | "CA certificate %s", | |
348 | certFile, cacertFile); | |
349 | return -1; | |
350 | } | |
351 | ||
352 | if (status != 0) { | |
353 | const char *reason = "Invalid certificate"; | |
354 | ||
355 | if (status & GNUTLS_CERT_INVALID) { | |
356 | reason = "The certificate is not trusted"; | |
357 | } | |
358 | ||
359 | if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) { | |
360 | reason = "The certificate hasn't got a known issuer"; | |
361 | } | |
362 | ||
363 | if (status & GNUTLS_CERT_REVOKED) { | |
364 | reason = "The certificate has been revoked"; | |
365 | } | |
366 | ||
367 | #ifndef GNUTLS_1_0_COMPAT | |
368 | if (status & GNUTLS_CERT_INSECURE_ALGORITHM) { | |
369 | reason = "The certificate uses an insecure algorithm"; | |
370 | } | |
371 | #endif | |
372 | ||
373 | error_setg(errp, | |
374 | "Our own certificate %s failed validation against %s: %s", | |
375 | certFile, cacertFile, reason); | |
376 | return -1; | |
377 | } | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | ||
383 | static gnutls_x509_crt_t | |
384 | qcrypto_tls_creds_load_cert(QCryptoTLSCredsX509 *creds, | |
385 | const char *certFile, | |
386 | bool isServer, | |
387 | Error **errp) | |
388 | { | |
389 | gnutls_datum_t data; | |
390 | gnutls_x509_crt_t cert = NULL; | |
391 | char *buf = NULL; | |
392 | gsize buflen; | |
393 | GError *gerr; | |
394 | int ret = -1; | |
b7b68166 | 395 | int err; |
9a2fd434 DB |
396 | |
397 | trace_qcrypto_tls_creds_x509_load_cert(creds, isServer, certFile); | |
398 | ||
b7b68166 AB |
399 | err = gnutls_x509_crt_init(&cert); |
400 | if (err < 0) { | |
401 | error_setg(errp, "Unable to initialize certificate: %s", | |
402 | gnutls_strerror(err)); | |
9a2fd434 DB |
403 | goto cleanup; |
404 | } | |
405 | ||
406 | if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) { | |
407 | error_setg(errp, "Cannot load CA cert list %s: %s", | |
408 | certFile, gerr->message); | |
409 | g_error_free(gerr); | |
410 | goto cleanup; | |
411 | } | |
412 | ||
413 | data.data = (unsigned char *)buf; | |
414 | data.size = strlen(buf); | |
415 | ||
b7b68166 AB |
416 | err = gnutls_x509_crt_import(cert, &data, GNUTLS_X509_FMT_PEM); |
417 | if (err < 0) { | |
9a2fd434 | 418 | error_setg(errp, isServer ? |
b7b68166 AB |
419 | "Unable to import server certificate %s: %s" : |
420 | "Unable to import client certificate %s: %s", | |
421 | certFile, | |
422 | gnutls_strerror(err)); | |
9a2fd434 DB |
423 | goto cleanup; |
424 | } | |
425 | ||
426 | ret = 0; | |
427 | ||
428 | cleanup: | |
429 | if (ret != 0) { | |
430 | gnutls_x509_crt_deinit(cert); | |
431 | cert = NULL; | |
432 | } | |
433 | g_free(buf); | |
434 | return cert; | |
435 | } | |
436 | ||
437 | ||
438 | static int | |
439 | qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX509 *creds, | |
440 | const char *certFile, | |
441 | gnutls_x509_crt_t *certs, | |
442 | unsigned int certMax, | |
443 | size_t *ncerts, | |
444 | Error **errp) | |
445 | { | |
446 | gnutls_datum_t data; | |
447 | char *buf = NULL; | |
448 | gsize buflen; | |
449 | int ret = -1; | |
450 | GError *gerr = NULL; | |
451 | ||
452 | *ncerts = 0; | |
453 | trace_qcrypto_tls_creds_x509_load_cert_list(creds, certFile); | |
454 | ||
455 | if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) { | |
456 | error_setg(errp, "Cannot load CA cert list %s: %s", | |
457 | certFile, gerr->message); | |
458 | g_error_free(gerr); | |
459 | goto cleanup; | |
460 | } | |
461 | ||
462 | data.data = (unsigned char *)buf; | |
463 | data.size = strlen(buf); | |
464 | ||
465 | if (gnutls_x509_crt_list_import(certs, &certMax, &data, | |
466 | GNUTLS_X509_FMT_PEM, 0) < 0) { | |
467 | error_setg(errp, | |
468 | "Unable to import CA certificate list %s", | |
469 | certFile); | |
470 | goto cleanup; | |
471 | } | |
472 | *ncerts = certMax; | |
473 | ||
474 | ret = 0; | |
475 | ||
476 | cleanup: | |
477 | g_free(buf); | |
478 | return ret; | |
479 | } | |
480 | ||
481 | ||
482 | #define MAX_CERTS 16 | |
483 | static int | |
484 | qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509 *creds, | |
485 | bool isServer, | |
486 | const char *cacertFile, | |
487 | const char *certFile, | |
488 | Error **errp) | |
489 | { | |
490 | gnutls_x509_crt_t cert = NULL; | |
491 | gnutls_x509_crt_t cacerts[MAX_CERTS]; | |
492 | size_t ncacerts = 0; | |
493 | size_t i; | |
494 | int ret = -1; | |
495 | ||
496 | memset(cacerts, 0, sizeof(cacerts)); | |
08cb175a DB |
497 | if (certFile && |
498 | access(certFile, R_OK) == 0) { | |
9a2fd434 DB |
499 | cert = qcrypto_tls_creds_load_cert(creds, |
500 | certFile, isServer, | |
501 | errp); | |
502 | if (!cert) { | |
503 | goto cleanup; | |
504 | } | |
505 | } | |
506 | if (access(cacertFile, R_OK) == 0) { | |
507 | if (qcrypto_tls_creds_load_ca_cert_list(creds, | |
508 | cacertFile, cacerts, | |
509 | MAX_CERTS, &ncacerts, | |
510 | errp) < 0) { | |
511 | goto cleanup; | |
512 | } | |
513 | } | |
514 | ||
515 | if (cert && | |
516 | qcrypto_tls_creds_check_cert(creds, | |
517 | cert, certFile, isServer, | |
518 | false, errp) < 0) { | |
519 | goto cleanup; | |
520 | } | |
521 | ||
522 | for (i = 0; i < ncacerts; i++) { | |
523 | if (qcrypto_tls_creds_check_cert(creds, | |
524 | cacerts[i], cacertFile, | |
525 | isServer, true, errp) < 0) { | |
526 | goto cleanup; | |
527 | } | |
528 | } | |
529 | ||
530 | if (cert && ncacerts && | |
531 | qcrypto_tls_creds_check_cert_pair(cert, certFile, cacerts, | |
532 | ncacerts, cacertFile, | |
533 | isServer, errp) < 0) { | |
534 | goto cleanup; | |
535 | } | |
536 | ||
537 | ret = 0; | |
538 | ||
539 | cleanup: | |
540 | if (cert) { | |
541 | gnutls_x509_crt_deinit(cert); | |
542 | } | |
543 | for (i = 0; i < ncacerts; i++) { | |
544 | gnutls_x509_crt_deinit(cacerts[i]); | |
545 | } | |
546 | return ret; | |
547 | } | |
548 | ||
85bcbc78 DB |
549 | |
550 | static int | |
551 | qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds, | |
552 | Error **errp) | |
553 | { | |
554 | char *cacert = NULL, *cacrl = NULL, *cert = NULL, | |
555 | *key = NULL, *dhparams = NULL; | |
556 | int ret; | |
557 | int rv = -1; | |
558 | ||
559 | trace_qcrypto_tls_creds_x509_load(creds, | |
560 | creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>"); | |
561 | ||
562 | if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
563 | if (qcrypto_tls_creds_get_path(&creds->parent_obj, | |
564 | QCRYPTO_TLS_CREDS_X509_CA_CERT, | |
565 | true, &cacert, errp) < 0 || | |
566 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
567 | QCRYPTO_TLS_CREDS_X509_CA_CRL, | |
568 | false, &cacrl, errp) < 0 || | |
569 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
570 | QCRYPTO_TLS_CREDS_X509_SERVER_CERT, | |
571 | true, &cert, errp) < 0 || | |
572 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
573 | QCRYPTO_TLS_CREDS_X509_SERVER_KEY, | |
574 | true, &key, errp) < 0 || | |
575 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
576 | QCRYPTO_TLS_CREDS_DH_PARAMS, | |
577 | false, &dhparams, errp) < 0) { | |
578 | goto cleanup; | |
579 | } | |
580 | } else { | |
581 | if (qcrypto_tls_creds_get_path(&creds->parent_obj, | |
582 | QCRYPTO_TLS_CREDS_X509_CA_CERT, | |
583 | true, &cacert, errp) < 0 || | |
584 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
585 | QCRYPTO_TLS_CREDS_X509_CLIENT_CERT, | |
586 | false, &cert, errp) < 0 || | |
587 | qcrypto_tls_creds_get_path(&creds->parent_obj, | |
588 | QCRYPTO_TLS_CREDS_X509_CLIENT_KEY, | |
589 | false, &key, errp) < 0) { | |
590 | goto cleanup; | |
591 | } | |
592 | } | |
593 | ||
9a2fd434 DB |
594 | if (creds->sanityCheck && |
595 | qcrypto_tls_creds_x509_sanity_check(creds, | |
596 | creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, | |
597 | cacert, cert, errp) < 0) { | |
598 | goto cleanup; | |
599 | } | |
600 | ||
85bcbc78 DB |
601 | ret = gnutls_certificate_allocate_credentials(&creds->data); |
602 | if (ret < 0) { | |
603 | error_setg(errp, "Cannot allocate credentials: '%s'", | |
604 | gnutls_strerror(ret)); | |
605 | goto cleanup; | |
606 | } | |
607 | ||
608 | ret = gnutls_certificate_set_x509_trust_file(creds->data, | |
609 | cacert, | |
610 | GNUTLS_X509_FMT_PEM); | |
611 | if (ret < 0) { | |
612 | error_setg(errp, "Cannot load CA certificate '%s': %s", | |
613 | cacert, gnutls_strerror(ret)); | |
614 | goto cleanup; | |
615 | } | |
616 | ||
617 | if (cert != NULL && key != NULL) { | |
d9269b27 | 618 | #if LIBGNUTLS_VERSION_NUMBER >= 0x030111 |
1d7b5b4a DB |
619 | char *password = NULL; |
620 | if (creds->passwordid) { | |
621 | password = qcrypto_secret_lookup_as_utf8(creds->passwordid, | |
622 | errp); | |
623 | if (!password) { | |
624 | goto cleanup; | |
625 | } | |
626 | } | |
627 | ret = gnutls_certificate_set_x509_key_file2(creds->data, | |
628 | cert, key, | |
629 | GNUTLS_X509_FMT_PEM, | |
630 | password, | |
631 | 0); | |
632 | g_free(password); | |
d9269b27 | 633 | #else /* LIBGNUTLS_VERSION_NUMBER < 0x030111 */ |
1d7b5b4a DB |
634 | if (creds->passwordid) { |
635 | error_setg(errp, "PKCS8 decryption requires GNUTLS >= 3.1.11"); | |
636 | goto cleanup; | |
637 | } | |
85bcbc78 DB |
638 | ret = gnutls_certificate_set_x509_key_file(creds->data, |
639 | cert, key, | |
640 | GNUTLS_X509_FMT_PEM); | |
d9269b27 | 641 | #endif |
85bcbc78 DB |
642 | if (ret < 0) { |
643 | error_setg(errp, "Cannot load certificate '%s' & key '%s': %s", | |
644 | cert, key, gnutls_strerror(ret)); | |
645 | goto cleanup; | |
646 | } | |
647 | } | |
648 | ||
649 | if (cacrl != NULL) { | |
650 | ret = gnutls_certificate_set_x509_crl_file(creds->data, | |
651 | cacrl, | |
652 | GNUTLS_X509_FMT_PEM); | |
653 | if (ret < 0) { | |
654 | error_setg(errp, "Cannot load CRL '%s': %s", | |
655 | cacrl, gnutls_strerror(ret)); | |
656 | goto cleanup; | |
657 | } | |
658 | } | |
659 | ||
660 | if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
661 | if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams, | |
662 | &creds->parent_obj.dh_params, | |
663 | errp) < 0) { | |
664 | goto cleanup; | |
665 | } | |
666 | gnutls_certificate_set_dh_params(creds->data, | |
667 | creds->parent_obj.dh_params); | |
668 | } | |
669 | ||
670 | rv = 0; | |
671 | cleanup: | |
672 | g_free(cacert); | |
673 | g_free(cacrl); | |
674 | g_free(cert); | |
675 | g_free(key); | |
676 | g_free(dhparams); | |
677 | return rv; | |
678 | } | |
679 | ||
680 | ||
681 | static void | |
682 | qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds) | |
683 | { | |
684 | if (creds->data) { | |
685 | gnutls_certificate_free_credentials(creds->data); | |
686 | creds->data = NULL; | |
687 | } | |
61b9251a DB |
688 | if (creds->parent_obj.dh_params) { |
689 | gnutls_dh_params_deinit(creds->parent_obj.dh_params); | |
690 | creds->parent_obj.dh_params = NULL; | |
691 | } | |
85bcbc78 DB |
692 | } |
693 | ||
694 | ||
695 | #else /* ! CONFIG_GNUTLS */ | |
696 | ||
697 | ||
698 | static void | |
699 | qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED, | |
700 | Error **errp) | |
701 | { | |
702 | error_setg(errp, "TLS credentials support requires GNUTLS"); | |
703 | } | |
704 | ||
705 | ||
706 | static void | |
707 | qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED) | |
708 | { | |
709 | /* nada */ | |
710 | } | |
711 | ||
712 | ||
713 | #endif /* ! CONFIG_GNUTLS */ | |
714 | ||
715 | ||
716 | static void | |
717 | qcrypto_tls_creds_x509_prop_set_loaded(Object *obj, | |
718 | bool value, | |
719 | Error **errp) | |
720 | { | |
721 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
722 | ||
723 | if (value) { | |
724 | qcrypto_tls_creds_x509_load(creds, errp); | |
725 | } else { | |
726 | qcrypto_tls_creds_x509_unload(creds); | |
727 | } | |
728 | } | |
729 | ||
730 | ||
731 | #ifdef CONFIG_GNUTLS | |
732 | ||
733 | ||
734 | static bool | |
735 | qcrypto_tls_creds_x509_prop_get_loaded(Object *obj, | |
736 | Error **errp G_GNUC_UNUSED) | |
737 | { | |
738 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
739 | ||
740 | return creds->data != NULL; | |
741 | } | |
742 | ||
743 | ||
744 | #else /* ! CONFIG_GNUTLS */ | |
745 | ||
746 | ||
747 | static bool | |
748 | qcrypto_tls_creds_x509_prop_get_loaded(Object *obj G_GNUC_UNUSED, | |
749 | Error **errp G_GNUC_UNUSED) | |
750 | { | |
751 | return false; | |
752 | } | |
753 | ||
754 | ||
755 | #endif /* ! CONFIG_GNUTLS */ | |
756 | ||
757 | ||
9a2fd434 DB |
758 | static void |
759 | qcrypto_tls_creds_x509_prop_set_sanity(Object *obj, | |
760 | bool value, | |
761 | Error **errp G_GNUC_UNUSED) | |
762 | { | |
763 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
764 | ||
765 | creds->sanityCheck = value; | |
766 | } | |
767 | ||
768 | ||
1d7b5b4a DB |
769 | static void |
770 | qcrypto_tls_creds_x509_prop_set_passwordid(Object *obj, | |
771 | const char *value, | |
772 | Error **errp G_GNUC_UNUSED) | |
773 | { | |
774 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
775 | ||
776 | creds->passwordid = g_strdup(value); | |
777 | } | |
778 | ||
779 | ||
780 | static char * | |
781 | qcrypto_tls_creds_x509_prop_get_passwordid(Object *obj, | |
782 | Error **errp G_GNUC_UNUSED) | |
783 | { | |
784 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
785 | ||
786 | return g_strdup(creds->passwordid); | |
787 | } | |
788 | ||
789 | ||
9a2fd434 DB |
790 | static bool |
791 | qcrypto_tls_creds_x509_prop_get_sanity(Object *obj, | |
792 | Error **errp G_GNUC_UNUSED) | |
793 | { | |
794 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
795 | ||
796 | return creds->sanityCheck; | |
797 | } | |
798 | ||
799 | ||
85bcbc78 DB |
800 | static void |
801 | qcrypto_tls_creds_x509_complete(UserCreatable *uc, Error **errp) | |
802 | { | |
803 | object_property_set_bool(OBJECT(uc), true, "loaded", errp); | |
804 | } | |
805 | ||
806 | ||
807 | static void | |
808 | qcrypto_tls_creds_x509_init(Object *obj) | |
809 | { | |
9a2fd434 DB |
810 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
811 | ||
812 | creds->sanityCheck = true; | |
85bcbc78 DB |
813 | } |
814 | ||
815 | ||
816 | static void | |
817 | qcrypto_tls_creds_x509_finalize(Object *obj) | |
818 | { | |
819 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); | |
820 | ||
1d7b5b4a | 821 | g_free(creds->passwordid); |
85bcbc78 DB |
822 | qcrypto_tls_creds_x509_unload(creds); |
823 | } | |
824 | ||
825 | ||
826 | static void | |
827 | qcrypto_tls_creds_x509_class_init(ObjectClass *oc, void *data) | |
828 | { | |
829 | UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); | |
830 | ||
831 | ucc->complete = qcrypto_tls_creds_x509_complete; | |
9884abee DB |
832 | |
833 | object_class_property_add_bool(oc, "loaded", | |
834 | qcrypto_tls_creds_x509_prop_get_loaded, | |
835 | qcrypto_tls_creds_x509_prop_set_loaded, | |
836 | NULL); | |
837 | object_class_property_add_bool(oc, "sanity-check", | |
838 | qcrypto_tls_creds_x509_prop_get_sanity, | |
839 | qcrypto_tls_creds_x509_prop_set_sanity, | |
840 | NULL); | |
841 | object_class_property_add_str(oc, "passwordid", | |
842 | qcrypto_tls_creds_x509_prop_get_passwordid, | |
843 | qcrypto_tls_creds_x509_prop_set_passwordid, | |
844 | NULL); | |
85bcbc78 DB |
845 | } |
846 | ||
847 | ||
848 | static const TypeInfo qcrypto_tls_creds_x509_info = { | |
849 | .parent = TYPE_QCRYPTO_TLS_CREDS, | |
850 | .name = TYPE_QCRYPTO_TLS_CREDS_X509, | |
851 | .instance_size = sizeof(QCryptoTLSCredsX509), | |
852 | .instance_init = qcrypto_tls_creds_x509_init, | |
853 | .instance_finalize = qcrypto_tls_creds_x509_finalize, | |
854 | .class_size = sizeof(QCryptoTLSCredsX509Class), | |
855 | .class_init = qcrypto_tls_creds_x509_class_init, | |
856 | .interfaces = (InterfaceInfo[]) { | |
857 | { TYPE_USER_CREATABLE }, | |
858 | { } | |
859 | } | |
860 | }; | |
861 | ||
862 | ||
863 | static void | |
864 | qcrypto_tls_creds_x509_register_types(void) | |
865 | { | |
866 | type_register_static(&qcrypto_tls_creds_x509_info); | |
867 | } | |
868 | ||
869 | ||
870 | type_init(qcrypto_tls_creds_x509_register_types); |