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d321e1e5 DB |
1 | /* |
2 | * QEMU crypto TLS session 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 | |
b7cbb874 | 9 | * version 2.1 of the License, or (at your option) any later version. |
d321e1e5 DB |
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" |
d321e1e5 DB |
22 | #include "crypto/tlssession.h" |
23 | #include "crypto/tlscredsanon.h" | |
e1a6dc91 | 24 | #include "crypto/tlscredspsk.h" |
d321e1e5 | 25 | #include "crypto/tlscredsx509.h" |
da34e65c | 26 | #include "qapi/error.h" |
b76806d4 | 27 | #include "authz/base.h" |
678bcc3c | 28 | #include "tlscredspriv.h" |
d321e1e5 DB |
29 | #include "trace.h" |
30 | ||
31 | #ifdef CONFIG_GNUTLS | |
32 | ||
33 | ||
34 | #include <gnutls/x509.h> | |
35 | ||
36 | ||
37 | struct QCryptoTLSSession { | |
38 | QCryptoTLSCreds *creds; | |
39 | gnutls_session_t handle; | |
40 | char *hostname; | |
b76806d4 | 41 | char *authzid; |
d321e1e5 DB |
42 | bool handshakeComplete; |
43 | QCryptoTLSSessionWriteFunc writeFunc; | |
44 | QCryptoTLSSessionReadFunc readFunc; | |
45 | void *opaque; | |
46 | char *peername; | |
47 | }; | |
48 | ||
49 | ||
50 | void | |
51 | qcrypto_tls_session_free(QCryptoTLSSession *session) | |
52 | { | |
53 | if (!session) { | |
54 | return; | |
55 | } | |
56 | ||
57 | gnutls_deinit(session->handle); | |
58 | g_free(session->hostname); | |
59 | g_free(session->peername); | |
b76806d4 | 60 | g_free(session->authzid); |
d321e1e5 DB |
61 | object_unref(OBJECT(session->creds)); |
62 | g_free(session); | |
63 | } | |
64 | ||
65 | ||
66 | static ssize_t | |
67 | qcrypto_tls_session_push(void *opaque, const void *buf, size_t len) | |
68 | { | |
69 | QCryptoTLSSession *session = opaque; | |
70 | ||
71 | if (!session->writeFunc) { | |
72 | errno = EIO; | |
73 | return -1; | |
74 | }; | |
75 | ||
76 | return session->writeFunc(buf, len, session->opaque); | |
77 | } | |
78 | ||
79 | ||
80 | static ssize_t | |
81 | qcrypto_tls_session_pull(void *opaque, void *buf, size_t len) | |
82 | { | |
83 | QCryptoTLSSession *session = opaque; | |
84 | ||
85 | if (!session->readFunc) { | |
86 | errno = EIO; | |
87 | return -1; | |
88 | }; | |
89 | ||
90 | return session->readFunc(buf, len, session->opaque); | |
91 | } | |
92 | ||
e1a6dc91 | 93 | #define TLS_PRIORITY_ADDITIONAL_ANON "+ANON-DH" |
a0722409 | 94 | #define TLS_PRIORITY_ADDITIONAL_PSK "+ECDHE-PSK:+DHE-PSK:+PSK" |
d321e1e5 DB |
95 | |
96 | QCryptoTLSSession * | |
97 | qcrypto_tls_session_new(QCryptoTLSCreds *creds, | |
98 | const char *hostname, | |
b76806d4 | 99 | const char *authzid, |
d321e1e5 DB |
100 | QCryptoTLSCredsEndpoint endpoint, |
101 | Error **errp) | |
102 | { | |
103 | QCryptoTLSSession *session; | |
104 | int ret; | |
105 | ||
106 | session = g_new0(QCryptoTLSSession, 1); | |
107 | trace_qcrypto_tls_session_new( | |
108 | session, creds, hostname ? hostname : "<none>", | |
b76806d4 | 109 | authzid ? authzid : "<none>", endpoint); |
d321e1e5 DB |
110 | |
111 | if (hostname) { | |
112 | session->hostname = g_strdup(hostname); | |
113 | } | |
b76806d4 DB |
114 | if (authzid) { |
115 | session->authzid = g_strdup(authzid); | |
d321e1e5 DB |
116 | } |
117 | session->creds = creds; | |
118 | object_ref(OBJECT(creds)); | |
119 | ||
120 | if (creds->endpoint != endpoint) { | |
121 | error_setg(errp, "Credentials endpoint doesn't match session"); | |
122 | goto error; | |
123 | } | |
124 | ||
125 | if (endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
126 | ret = gnutls_init(&session->handle, GNUTLS_SERVER); | |
127 | } else { | |
128 | ret = gnutls_init(&session->handle, GNUTLS_CLIENT); | |
129 | } | |
130 | if (ret < 0) { | |
131 | error_setg(errp, "Cannot initialize TLS session: %s", | |
132 | gnutls_strerror(ret)); | |
133 | goto error; | |
134 | } | |
135 | ||
136 | if (object_dynamic_cast(OBJECT(creds), | |
137 | TYPE_QCRYPTO_TLS_CREDS_ANON)) { | |
138 | QCryptoTLSCredsAnon *acreds = QCRYPTO_TLS_CREDS_ANON(creds); | |
13f12430 | 139 | char *prio; |
d321e1e5 | 140 | |
13f12430 | 141 | if (creds->priority != NULL) { |
e1a6dc91 RJ |
142 | prio = g_strdup_printf("%s:%s", |
143 | creds->priority, | |
144 | TLS_PRIORITY_ADDITIONAL_ANON); | |
13f12430 | 145 | } else { |
e1a6dc91 RJ |
146 | prio = g_strdup(CONFIG_TLS_PRIORITY ":" |
147 | TLS_PRIORITY_ADDITIONAL_ANON); | |
13f12430 DB |
148 | } |
149 | ||
150 | ret = gnutls_priority_set_direct(session->handle, prio, NULL); | |
d321e1e5 | 151 | if (ret < 0) { |
13f12430 DB |
152 | error_setg(errp, "Unable to set TLS session priority %s: %s", |
153 | prio, gnutls_strerror(ret)); | |
154 | g_free(prio); | |
d321e1e5 DB |
155 | goto error; |
156 | } | |
13f12430 | 157 | g_free(prio); |
d321e1e5 DB |
158 | if (creds->endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { |
159 | ret = gnutls_credentials_set(session->handle, | |
160 | GNUTLS_CRD_ANON, | |
161 | acreds->data.server); | |
162 | } else { | |
163 | ret = gnutls_credentials_set(session->handle, | |
164 | GNUTLS_CRD_ANON, | |
165 | acreds->data.client); | |
166 | } | |
167 | if (ret < 0) { | |
168 | error_setg(errp, "Cannot set session credentials: %s", | |
169 | gnutls_strerror(ret)); | |
170 | goto error; | |
171 | } | |
e1a6dc91 RJ |
172 | } else if (object_dynamic_cast(OBJECT(creds), |
173 | TYPE_QCRYPTO_TLS_CREDS_PSK)) { | |
174 | QCryptoTLSCredsPSK *pcreds = QCRYPTO_TLS_CREDS_PSK(creds); | |
175 | char *prio; | |
176 | ||
177 | if (creds->priority != NULL) { | |
178 | prio = g_strdup_printf("%s:%s", | |
179 | creds->priority, | |
180 | TLS_PRIORITY_ADDITIONAL_PSK); | |
181 | } else { | |
182 | prio = g_strdup(CONFIG_TLS_PRIORITY ":" | |
183 | TLS_PRIORITY_ADDITIONAL_PSK); | |
184 | } | |
185 | ||
186 | ret = gnutls_priority_set_direct(session->handle, prio, NULL); | |
187 | if (ret < 0) { | |
188 | error_setg(errp, "Unable to set TLS session priority %s: %s", | |
189 | prio, gnutls_strerror(ret)); | |
190 | g_free(prio); | |
191 | goto error; | |
192 | } | |
193 | g_free(prio); | |
194 | if (creds->endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
195 | ret = gnutls_credentials_set(session->handle, | |
196 | GNUTLS_CRD_PSK, | |
197 | pcreds->data.server); | |
198 | } else { | |
199 | ret = gnutls_credentials_set(session->handle, | |
200 | GNUTLS_CRD_PSK, | |
201 | pcreds->data.client); | |
202 | } | |
203 | if (ret < 0) { | |
204 | error_setg(errp, "Cannot set session credentials: %s", | |
205 | gnutls_strerror(ret)); | |
206 | goto error; | |
207 | } | |
d321e1e5 DB |
208 | } else if (object_dynamic_cast(OBJECT(creds), |
209 | TYPE_QCRYPTO_TLS_CREDS_X509)) { | |
210 | QCryptoTLSCredsX509 *tcreds = QCRYPTO_TLS_CREDS_X509(creds); | |
13f12430 DB |
211 | const char *prio = creds->priority; |
212 | if (!prio) { | |
a1c5e949 | 213 | prio = CONFIG_TLS_PRIORITY; |
13f12430 | 214 | } |
d321e1e5 | 215 | |
13f12430 | 216 | ret = gnutls_priority_set_direct(session->handle, prio, NULL); |
d321e1e5 | 217 | if (ret < 0) { |
13f12430 DB |
218 | error_setg(errp, "Cannot set default TLS session priority %s: %s", |
219 | prio, gnutls_strerror(ret)); | |
d321e1e5 DB |
220 | goto error; |
221 | } | |
222 | ret = gnutls_credentials_set(session->handle, | |
223 | GNUTLS_CRD_CERTIFICATE, | |
224 | tcreds->data); | |
225 | if (ret < 0) { | |
226 | error_setg(errp, "Cannot set session credentials: %s", | |
227 | gnutls_strerror(ret)); | |
228 | goto error; | |
229 | } | |
230 | ||
231 | if (creds->endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
232 | /* This requests, but does not enforce a client cert. | |
233 | * The cert checking code later does enforcement */ | |
234 | gnutls_certificate_server_set_request(session->handle, | |
235 | GNUTLS_CERT_REQUEST); | |
236 | } | |
237 | } else { | |
238 | error_setg(errp, "Unsupported TLS credentials type %s", | |
239 | object_get_typename(OBJECT(creds))); | |
240 | goto error; | |
241 | } | |
242 | ||
243 | gnutls_transport_set_ptr(session->handle, session); | |
244 | gnutls_transport_set_push_function(session->handle, | |
245 | qcrypto_tls_session_push); | |
246 | gnutls_transport_set_pull_function(session->handle, | |
247 | qcrypto_tls_session_pull); | |
248 | ||
249 | return session; | |
250 | ||
251 | error: | |
252 | qcrypto_tls_session_free(session); | |
253 | return NULL; | |
254 | } | |
255 | ||
256 | static int | |
257 | qcrypto_tls_session_check_certificate(QCryptoTLSSession *session, | |
258 | Error **errp) | |
259 | { | |
260 | int ret; | |
261 | unsigned int status; | |
262 | const gnutls_datum_t *certs; | |
263 | unsigned int nCerts, i; | |
264 | time_t now; | |
265 | gnutls_x509_crt_t cert = NULL; | |
b76806d4 | 266 | Error *err = NULL; |
d321e1e5 DB |
267 | |
268 | now = time(NULL); | |
269 | if (now == ((time_t)-1)) { | |
270 | error_setg_errno(errp, errno, "Cannot get current time"); | |
271 | return -1; | |
272 | } | |
273 | ||
274 | ret = gnutls_certificate_verify_peers2(session->handle, &status); | |
275 | if (ret < 0) { | |
276 | error_setg(errp, "Verify failed: %s", gnutls_strerror(ret)); | |
277 | return -1; | |
278 | } | |
279 | ||
280 | if (status != 0) { | |
281 | const char *reason = "Invalid certificate"; | |
282 | ||
283 | if (status & GNUTLS_CERT_INVALID) { | |
284 | reason = "The certificate is not trusted"; | |
285 | } | |
286 | ||
287 | if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) { | |
288 | reason = "The certificate hasn't got a known issuer"; | |
289 | } | |
290 | ||
291 | if (status & GNUTLS_CERT_REVOKED) { | |
292 | reason = "The certificate has been revoked"; | |
293 | } | |
294 | ||
295 | if (status & GNUTLS_CERT_INSECURE_ALGORITHM) { | |
296 | reason = "The certificate uses an insecure algorithm"; | |
297 | } | |
298 | ||
299 | error_setg(errp, "%s", reason); | |
300 | return -1; | |
301 | } | |
302 | ||
303 | certs = gnutls_certificate_get_peers(session->handle, &nCerts); | |
304 | if (!certs) { | |
305 | error_setg(errp, "No certificate peers"); | |
306 | return -1; | |
307 | } | |
308 | ||
309 | for (i = 0; i < nCerts; i++) { | |
310 | ret = gnutls_x509_crt_init(&cert); | |
311 | if (ret < 0) { | |
312 | error_setg(errp, "Cannot initialize certificate: %s", | |
313 | gnutls_strerror(ret)); | |
314 | return -1; | |
315 | } | |
316 | ||
317 | ret = gnutls_x509_crt_import(cert, &certs[i], GNUTLS_X509_FMT_DER); | |
318 | if (ret < 0) { | |
319 | error_setg(errp, "Cannot import certificate: %s", | |
320 | gnutls_strerror(ret)); | |
321 | goto error; | |
322 | } | |
323 | ||
324 | if (gnutls_x509_crt_get_expiration_time(cert) < now) { | |
325 | error_setg(errp, "The certificate has expired"); | |
326 | goto error; | |
327 | } | |
328 | ||
329 | if (gnutls_x509_crt_get_activation_time(cert) > now) { | |
330 | error_setg(errp, "The certificate is not yet activated"); | |
331 | goto error; | |
332 | } | |
333 | ||
334 | if (gnutls_x509_crt_get_activation_time(cert) > now) { | |
335 | error_setg(errp, "The certificate is not yet activated"); | |
336 | goto error; | |
337 | } | |
338 | ||
339 | if (i == 0) { | |
340 | size_t dnameSize = 1024; | |
341 | session->peername = g_malloc(dnameSize); | |
342 | requery: | |
343 | ret = gnutls_x509_crt_get_dn(cert, session->peername, &dnameSize); | |
344 | if (ret < 0) { | |
345 | if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER) { | |
346 | session->peername = g_realloc(session->peername, | |
347 | dnameSize); | |
348 | goto requery; | |
349 | } | |
350 | error_setg(errp, "Cannot get client distinguished name: %s", | |
351 | gnutls_strerror(ret)); | |
352 | goto error; | |
353 | } | |
b76806d4 DB |
354 | if (session->authzid) { |
355 | bool allow; | |
356 | ||
357 | allow = qauthz_is_allowed_by_id(session->authzid, | |
358 | session->peername, &err); | |
359 | if (err) { | |
360 | error_propagate(errp, err); | |
d321e1e5 DB |
361 | goto error; |
362 | } | |
d321e1e5 | 363 | if (!allow) { |
b76806d4 | 364 | error_setg(errp, "TLS x509 authz check for %s is denied", |
6ef8cd7a | 365 | session->peername); |
d321e1e5 DB |
366 | goto error; |
367 | } | |
368 | } | |
369 | if (session->hostname) { | |
370 | if (!gnutls_x509_crt_check_hostname(cert, session->hostname)) { | |
371 | error_setg(errp, | |
372 | "Certificate does not match the hostname %s", | |
373 | session->hostname); | |
374 | goto error; | |
375 | } | |
d41997e4 DB |
376 | } else { |
377 | if (session->creds->endpoint == | |
378 | QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) { | |
379 | error_setg(errp, "No hostname for certificate validation"); | |
380 | goto error; | |
381 | } | |
d321e1e5 DB |
382 | } |
383 | } | |
384 | ||
385 | gnutls_x509_crt_deinit(cert); | |
386 | } | |
387 | ||
388 | return 0; | |
389 | ||
390 | error: | |
391 | gnutls_x509_crt_deinit(cert); | |
392 | return -1; | |
393 | } | |
394 | ||
395 | ||
396 | int | |
397 | qcrypto_tls_session_check_credentials(QCryptoTLSSession *session, | |
398 | Error **errp) | |
399 | { | |
400 | if (object_dynamic_cast(OBJECT(session->creds), | |
401 | TYPE_QCRYPTO_TLS_CREDS_ANON)) { | |
b57482d7 | 402 | trace_qcrypto_tls_session_check_creds(session, "nop"); |
d321e1e5 | 403 | return 0; |
e1a6dc91 RJ |
404 | } else if (object_dynamic_cast(OBJECT(session->creds), |
405 | TYPE_QCRYPTO_TLS_CREDS_PSK)) { | |
406 | trace_qcrypto_tls_session_check_creds(session, "nop"); | |
407 | return 0; | |
d321e1e5 DB |
408 | } else if (object_dynamic_cast(OBJECT(session->creds), |
409 | TYPE_QCRYPTO_TLS_CREDS_X509)) { | |
410 | if (session->creds->verifyPeer) { | |
b57482d7 DB |
411 | int ret = qcrypto_tls_session_check_certificate(session, |
412 | errp); | |
413 | trace_qcrypto_tls_session_check_creds(session, | |
414 | ret == 0 ? "pass" : "fail"); | |
415 | return ret; | |
d321e1e5 | 416 | } else { |
b57482d7 | 417 | trace_qcrypto_tls_session_check_creds(session, "skip"); |
d321e1e5 DB |
418 | return 0; |
419 | } | |
420 | } else { | |
b57482d7 | 421 | trace_qcrypto_tls_session_check_creds(session, "error"); |
d321e1e5 DB |
422 | error_setg(errp, "Unexpected credential type %s", |
423 | object_get_typename(OBJECT(session->creds))); | |
424 | return -1; | |
425 | } | |
426 | } | |
427 | ||
428 | ||
429 | void | |
430 | qcrypto_tls_session_set_callbacks(QCryptoTLSSession *session, | |
431 | QCryptoTLSSessionWriteFunc writeFunc, | |
432 | QCryptoTLSSessionReadFunc readFunc, | |
433 | void *opaque) | |
434 | { | |
435 | session->writeFunc = writeFunc; | |
436 | session->readFunc = readFunc; | |
437 | session->opaque = opaque; | |
438 | } | |
439 | ||
440 | ||
441 | ssize_t | |
442 | qcrypto_tls_session_write(QCryptoTLSSession *session, | |
443 | const char *buf, | |
444 | size_t len) | |
445 | { | |
446 | ssize_t ret = gnutls_record_send(session->handle, buf, len); | |
447 | ||
448 | if (ret < 0) { | |
449 | switch (ret) { | |
450 | case GNUTLS_E_AGAIN: | |
451 | errno = EAGAIN; | |
452 | break; | |
453 | case GNUTLS_E_INTERRUPTED: | |
454 | errno = EINTR; | |
455 | break; | |
456 | default: | |
457 | errno = EIO; | |
458 | break; | |
459 | } | |
460 | ret = -1; | |
461 | } | |
462 | ||
463 | return ret; | |
464 | } | |
465 | ||
466 | ||
467 | ssize_t | |
468 | qcrypto_tls_session_read(QCryptoTLSSession *session, | |
469 | char *buf, | |
470 | size_t len) | |
471 | { | |
472 | ssize_t ret = gnutls_record_recv(session->handle, buf, len); | |
473 | ||
474 | if (ret < 0) { | |
475 | switch (ret) { | |
476 | case GNUTLS_E_AGAIN: | |
477 | errno = EAGAIN; | |
478 | break; | |
479 | case GNUTLS_E_INTERRUPTED: | |
480 | errno = EINTR; | |
481 | break; | |
a2458b6f DB |
482 | case GNUTLS_E_PREMATURE_TERMINATION: |
483 | errno = ECONNABORTED; | |
484 | break; | |
d321e1e5 DB |
485 | default: |
486 | errno = EIO; | |
487 | break; | |
488 | } | |
489 | ret = -1; | |
490 | } | |
491 | ||
492 | return ret; | |
493 | } | |
494 | ||
495 | ||
496 | int | |
497 | qcrypto_tls_session_handshake(QCryptoTLSSession *session, | |
498 | Error **errp) | |
499 | { | |
500 | int ret = gnutls_handshake(session->handle); | |
501 | if (ret == 0) { | |
502 | session->handshakeComplete = true; | |
503 | } else { | |
504 | if (ret == GNUTLS_E_INTERRUPTED || | |
505 | ret == GNUTLS_E_AGAIN) { | |
506 | ret = 1; | |
507 | } else { | |
508 | error_setg(errp, "TLS handshake failed: %s", | |
509 | gnutls_strerror(ret)); | |
510 | ret = -1; | |
511 | } | |
512 | } | |
513 | ||
514 | return ret; | |
515 | } | |
516 | ||
517 | ||
518 | QCryptoTLSSessionHandshakeStatus | |
519 | qcrypto_tls_session_get_handshake_status(QCryptoTLSSession *session) | |
520 | { | |
521 | if (session->handshakeComplete) { | |
522 | return QCRYPTO_TLS_HANDSHAKE_COMPLETE; | |
523 | } else if (gnutls_record_get_direction(session->handle) == 0) { | |
524 | return QCRYPTO_TLS_HANDSHAKE_RECVING; | |
525 | } else { | |
526 | return QCRYPTO_TLS_HANDSHAKE_SENDING; | |
527 | } | |
528 | } | |
529 | ||
530 | ||
531 | int | |
532 | qcrypto_tls_session_get_key_size(QCryptoTLSSession *session, | |
533 | Error **errp) | |
534 | { | |
535 | gnutls_cipher_algorithm_t cipher; | |
536 | int ssf; | |
537 | ||
538 | cipher = gnutls_cipher_get(session->handle); | |
539 | ssf = gnutls_cipher_get_key_size(cipher); | |
540 | if (!ssf) { | |
541 | error_setg(errp, "Cannot get TLS cipher key size"); | |
542 | return -1; | |
543 | } | |
544 | return ssf; | |
545 | } | |
546 | ||
547 | ||
548 | char * | |
549 | qcrypto_tls_session_get_peer_name(QCryptoTLSSession *session) | |
550 | { | |
551 | if (session->peername) { | |
552 | return g_strdup(session->peername); | |
553 | } | |
554 | return NULL; | |
555 | } | |
556 | ||
557 | ||
558 | #else /* ! CONFIG_GNUTLS */ | |
559 | ||
560 | ||
561 | QCryptoTLSSession * | |
562 | qcrypto_tls_session_new(QCryptoTLSCreds *creds G_GNUC_UNUSED, | |
563 | const char *hostname G_GNUC_UNUSED, | |
b76806d4 | 564 | const char *authzid G_GNUC_UNUSED, |
d321e1e5 DB |
565 | QCryptoTLSCredsEndpoint endpoint G_GNUC_UNUSED, |
566 | Error **errp) | |
567 | { | |
568 | error_setg(errp, "TLS requires GNUTLS support"); | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | ||
573 | void | |
574 | qcrypto_tls_session_free(QCryptoTLSSession *sess G_GNUC_UNUSED) | |
575 | { | |
576 | } | |
577 | ||
578 | ||
579 | int | |
580 | qcrypto_tls_session_check_credentials(QCryptoTLSSession *sess G_GNUC_UNUSED, | |
581 | Error **errp) | |
582 | { | |
583 | error_setg(errp, "TLS requires GNUTLS support"); | |
584 | return -1; | |
585 | } | |
586 | ||
587 | ||
588 | void | |
589 | qcrypto_tls_session_set_callbacks( | |
590 | QCryptoTLSSession *sess G_GNUC_UNUSED, | |
591 | QCryptoTLSSessionWriteFunc writeFunc G_GNUC_UNUSED, | |
592 | QCryptoTLSSessionReadFunc readFunc G_GNUC_UNUSED, | |
593 | void *opaque G_GNUC_UNUSED) | |
594 | { | |
595 | } | |
596 | ||
597 | ||
598 | ssize_t | |
599 | qcrypto_tls_session_write(QCryptoTLSSession *sess, | |
600 | const char *buf, | |
601 | size_t len) | |
602 | { | |
603 | errno = -EIO; | |
604 | return -1; | |
605 | } | |
606 | ||
607 | ||
608 | ssize_t | |
609 | qcrypto_tls_session_read(QCryptoTLSSession *sess, | |
610 | char *buf, | |
611 | size_t len) | |
612 | { | |
613 | errno = -EIO; | |
614 | return -1; | |
615 | } | |
616 | ||
617 | ||
618 | int | |
619 | qcrypto_tls_session_handshake(QCryptoTLSSession *sess, | |
620 | Error **errp) | |
621 | { | |
622 | error_setg(errp, "TLS requires GNUTLS support"); | |
623 | return -1; | |
624 | } | |
625 | ||
626 | ||
627 | QCryptoTLSSessionHandshakeStatus | |
628 | qcrypto_tls_session_get_handshake_status(QCryptoTLSSession *sess) | |
629 | { | |
630 | return QCRYPTO_TLS_HANDSHAKE_COMPLETE; | |
631 | } | |
632 | ||
633 | ||
634 | int | |
635 | qcrypto_tls_session_get_key_size(QCryptoTLSSession *sess, | |
636 | Error **errp) | |
637 | { | |
638 | error_setg(errp, "TLS requires GNUTLS support"); | |
639 | return -1; | |
640 | } | |
641 | ||
642 | ||
643 | char * | |
644 | qcrypto_tls_session_get_peer_name(QCryptoTLSSession *sess) | |
645 | { | |
646 | return NULL; | |
647 | } | |
648 | ||
649 | #endif |