Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 |
Thomas Huth | b7cbb87 | 2019-02-13 16:54:59 +0100 | [diff] [blame] | 9 | * version 2.1 of the License, or (at your option) any later version. |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 | |
Peter Maydell | 42f7a44 | 2016-01-26 18:16:55 +0000 | [diff] [blame] | 21 | #include "qemu/osdep.h" |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 22 | #include "crypto/tlscredsx509.h" |
Michael S. Tsirkin | 986bc8d | 2018-05-03 22:50:23 +0300 | [diff] [blame] | 23 | #include "tlscredspriv.h" |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 24 | #include "crypto/secret.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 25 | #include "qapi/error.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 26 | #include "qemu/module.h" |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 27 | #include "qom/object_interfaces.h" |
| 28 | #include "trace.h" |
| 29 | |
| 30 | |
| 31 | #ifdef CONFIG_GNUTLS |
| 32 | |
Philippe Mathieu-Daudé | 678bcc3 | 2021-06-28 18:09:14 +0200 | [diff] [blame] | 33 | #include <gnutls/gnutls.h> |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 34 | #include <gnutls/x509.h> |
| 35 | |
| 36 | |
| 37 | static int |
| 38 | qcrypto_tls_creds_check_cert_times(gnutls_x509_crt_t cert, |
| 39 | const char *certFile, |
| 40 | bool isServer, |
| 41 | bool isCA, |
| 42 | Error **errp) |
| 43 | { |
| 44 | time_t now = time(NULL); |
| 45 | |
| 46 | if (now == ((time_t)-1)) { |
| 47 | error_setg_errno(errp, errno, "cannot get current time"); |
| 48 | return -1; |
| 49 | } |
| 50 | |
| 51 | if (gnutls_x509_crt_get_expiration_time(cert) < now) { |
| 52 | error_setg(errp, |
| 53 | (isCA ? |
| 54 | "The CA certificate %s has expired" : |
| 55 | (isServer ? |
| 56 | "The server certificate %s has expired" : |
| 57 | "The client certificate %s has expired")), |
| 58 | certFile); |
| 59 | return -1; |
| 60 | } |
| 61 | |
| 62 | if (gnutls_x509_crt_get_activation_time(cert) > now) { |
| 63 | error_setg(errp, |
| 64 | (isCA ? |
| 65 | "The CA certificate %s is not yet active" : |
| 66 | (isServer ? |
| 67 | "The server certificate %s is not yet active" : |
| 68 | "The client certificate %s is not yet active")), |
| 69 | certFile); |
| 70 | return -1; |
| 71 | } |
| 72 | |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 77 | static int |
| 78 | qcrypto_tls_creds_check_cert_basic_constraints(QCryptoTLSCredsX509 *creds, |
| 79 | gnutls_x509_crt_t cert, |
| 80 | const char *certFile, |
| 81 | bool isServer, |
| 82 | bool isCA, |
| 83 | Error **errp) |
| 84 | { |
| 85 | int status; |
| 86 | |
| 87 | status = gnutls_x509_crt_get_basic_constraints(cert, NULL, NULL, NULL); |
| 88 | trace_qcrypto_tls_creds_x509_check_basic_constraints( |
| 89 | creds, certFile, status); |
| 90 | |
| 91 | if (status > 0) { /* It is a CA cert */ |
| 92 | if (!isCA) { |
| 93 | error_setg(errp, isServer ? |
| 94 | "The certificate %s basic constraints show a CA, " |
| 95 | "but we need one for a server" : |
| 96 | "The certificate %s basic constraints show a CA, " |
| 97 | "but we need one for a client", |
| 98 | certFile); |
| 99 | return -1; |
| 100 | } |
| 101 | } else if (status == 0) { /* It is not a CA cert */ |
| 102 | if (isCA) { |
| 103 | error_setg(errp, |
| 104 | "The certificate %s basic constraints do not " |
| 105 | "show a CA", |
| 106 | certFile); |
| 107 | return -1; |
| 108 | } |
| 109 | } else if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { |
| 110 | /* Missing basicConstraints */ |
| 111 | if (isCA) { |
| 112 | error_setg(errp, |
| 113 | "The certificate %s is missing basic constraints " |
| 114 | "for a CA", |
| 115 | certFile); |
| 116 | return -1; |
| 117 | } |
| 118 | } else { /* General error */ |
| 119 | error_setg(errp, |
| 120 | "Unable to query certificate %s basic constraints: %s", |
| 121 | certFile, gnutls_strerror(status)); |
| 122 | return -1; |
| 123 | } |
| 124 | |
| 125 | return 0; |
| 126 | } |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 127 | |
| 128 | |
| 129 | static int |
| 130 | qcrypto_tls_creds_check_cert_key_usage(QCryptoTLSCredsX509 *creds, |
| 131 | gnutls_x509_crt_t cert, |
| 132 | const char *certFile, |
| 133 | bool isCA, |
| 134 | Error **errp) |
| 135 | { |
| 136 | int status; |
| 137 | unsigned int usage = 0; |
| 138 | unsigned int critical = 0; |
| 139 | |
| 140 | status = gnutls_x509_crt_get_key_usage(cert, &usage, &critical); |
| 141 | trace_qcrypto_tls_creds_x509_check_key_usage( |
| 142 | creds, certFile, status, usage, critical); |
| 143 | |
| 144 | if (status < 0) { |
| 145 | if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { |
| 146 | usage = isCA ? GNUTLS_KEY_KEY_CERT_SIGN : |
shiliyang | 8573431 | 2020-12-07 16:37:25 +0800 | [diff] [blame] | 147 | GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 148 | } else { |
| 149 | error_setg(errp, |
| 150 | "Unable to query certificate %s key usage: %s", |
| 151 | certFile, gnutls_strerror(status)); |
| 152 | return -1; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | if (isCA) { |
| 157 | if (!(usage & GNUTLS_KEY_KEY_CERT_SIGN)) { |
| 158 | if (critical) { |
| 159 | error_setg(errp, |
| 160 | "Certificate %s usage does not permit " |
| 161 | "certificate signing", certFile); |
| 162 | return -1; |
| 163 | } |
| 164 | } |
| 165 | } else { |
| 166 | if (!(usage & GNUTLS_KEY_DIGITAL_SIGNATURE)) { |
| 167 | if (critical) { |
| 168 | error_setg(errp, |
| 169 | "Certificate %s usage does not permit digital " |
| 170 | "signature", certFile); |
| 171 | return -1; |
| 172 | } |
| 173 | } |
| 174 | if (!(usage & GNUTLS_KEY_KEY_ENCIPHERMENT)) { |
| 175 | if (critical) { |
| 176 | error_setg(errp, |
| 177 | "Certificate %s usage does not permit key " |
| 178 | "encipherment", certFile); |
| 179 | return -1; |
| 180 | } |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | |
| 188 | static int |
| 189 | qcrypto_tls_creds_check_cert_key_purpose(QCryptoTLSCredsX509 *creds, |
| 190 | gnutls_x509_crt_t cert, |
| 191 | const char *certFile, |
| 192 | bool isServer, |
| 193 | Error **errp) |
| 194 | { |
| 195 | int status; |
| 196 | size_t i; |
| 197 | unsigned int purposeCritical; |
| 198 | unsigned int critical; |
| 199 | char *buffer = NULL; |
| 200 | size_t size; |
| 201 | bool allowClient = false, allowServer = false; |
| 202 | |
| 203 | critical = 0; |
| 204 | for (i = 0; ; i++) { |
| 205 | size = 0; |
| 206 | status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer, |
| 207 | &size, NULL); |
| 208 | |
| 209 | if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) { |
| 210 | |
| 211 | /* If there is no data at all, then we must allow |
| 212 | client/server to pass */ |
| 213 | if (i == 0) { |
| 214 | allowServer = allowClient = true; |
| 215 | } |
| 216 | break; |
| 217 | } |
| 218 | if (status != GNUTLS_E_SHORT_MEMORY_BUFFER) { |
| 219 | error_setg(errp, |
| 220 | "Unable to query certificate %s key purpose: %s", |
| 221 | certFile, gnutls_strerror(status)); |
| 222 | return -1; |
| 223 | } |
| 224 | |
| 225 | buffer = g_new0(char, size); |
| 226 | |
| 227 | status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer, |
| 228 | &size, &purposeCritical); |
| 229 | |
| 230 | if (status < 0) { |
| 231 | trace_qcrypto_tls_creds_x509_check_key_purpose( |
| 232 | creds, certFile, status, "<none>", purposeCritical); |
| 233 | g_free(buffer); |
| 234 | error_setg(errp, |
| 235 | "Unable to query certificate %s key purpose: %s", |
| 236 | certFile, gnutls_strerror(status)); |
| 237 | return -1; |
| 238 | } |
| 239 | trace_qcrypto_tls_creds_x509_check_key_purpose( |
| 240 | creds, certFile, status, buffer, purposeCritical); |
| 241 | if (purposeCritical) { |
| 242 | critical = true; |
| 243 | } |
| 244 | |
| 245 | if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_SERVER)) { |
| 246 | allowServer = true; |
| 247 | } else if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_CLIENT)) { |
| 248 | allowClient = true; |
| 249 | } else if (g_str_equal(buffer, GNUTLS_KP_ANY)) { |
| 250 | allowServer = allowClient = true; |
| 251 | } |
| 252 | |
| 253 | g_free(buffer); |
Daniel P. Berrange | 0e1d024 | 2015-11-13 17:45:27 +0000 | [diff] [blame] | 254 | buffer = NULL; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | if (isServer) { |
| 258 | if (!allowServer) { |
| 259 | if (critical) { |
| 260 | error_setg(errp, |
| 261 | "Certificate %s purpose does not allow " |
| 262 | "use with a TLS server", certFile); |
| 263 | return -1; |
| 264 | } |
| 265 | } |
| 266 | } else { |
| 267 | if (!allowClient) { |
| 268 | if (critical) { |
| 269 | error_setg(errp, |
| 270 | "Certificate %s purpose does not allow use " |
| 271 | "with a TLS client", certFile); |
| 272 | return -1; |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | |
| 281 | static int |
| 282 | qcrypto_tls_creds_check_cert(QCryptoTLSCredsX509 *creds, |
| 283 | gnutls_x509_crt_t cert, |
| 284 | const char *certFile, |
| 285 | bool isServer, |
| 286 | bool isCA, |
| 287 | Error **errp) |
| 288 | { |
| 289 | if (qcrypto_tls_creds_check_cert_times(cert, certFile, |
| 290 | isServer, isCA, |
| 291 | errp) < 0) { |
| 292 | return -1; |
| 293 | } |
| 294 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 295 | if (qcrypto_tls_creds_check_cert_basic_constraints(creds, |
| 296 | cert, certFile, |
| 297 | isServer, isCA, |
| 298 | errp) < 0) { |
| 299 | return -1; |
| 300 | } |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 301 | |
| 302 | if (qcrypto_tls_creds_check_cert_key_usage(creds, |
| 303 | cert, certFile, |
| 304 | isCA, errp) < 0) { |
| 305 | return -1; |
| 306 | } |
| 307 | |
| 308 | if (!isCA && |
| 309 | qcrypto_tls_creds_check_cert_key_purpose(creds, |
| 310 | cert, certFile, |
| 311 | isServer, errp) < 0) { |
| 312 | return -1; |
| 313 | } |
| 314 | |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | |
| 319 | static int |
| 320 | qcrypto_tls_creds_check_cert_pair(gnutls_x509_crt_t cert, |
| 321 | const char *certFile, |
| 322 | gnutls_x509_crt_t *cacerts, |
| 323 | size_t ncacerts, |
| 324 | const char *cacertFile, |
| 325 | bool isServer, |
| 326 | Error **errp) |
| 327 | { |
| 328 | unsigned int status; |
| 329 | |
| 330 | if (gnutls_x509_crt_list_verify(&cert, 1, |
| 331 | cacerts, ncacerts, |
| 332 | NULL, 0, |
| 333 | 0, &status) < 0) { |
| 334 | error_setg(errp, isServer ? |
| 335 | "Unable to verify server certificate %s against " |
| 336 | "CA certificate %s" : |
| 337 | "Unable to verify client certificate %s against " |
| 338 | "CA certificate %s", |
| 339 | certFile, cacertFile); |
| 340 | return -1; |
| 341 | } |
| 342 | |
| 343 | if (status != 0) { |
| 344 | const char *reason = "Invalid certificate"; |
| 345 | |
| 346 | if (status & GNUTLS_CERT_INVALID) { |
| 347 | reason = "The certificate is not trusted"; |
| 348 | } |
| 349 | |
| 350 | if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) { |
| 351 | reason = "The certificate hasn't got a known issuer"; |
| 352 | } |
| 353 | |
| 354 | if (status & GNUTLS_CERT_REVOKED) { |
| 355 | reason = "The certificate has been revoked"; |
| 356 | } |
| 357 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 358 | if (status & GNUTLS_CERT_INSECURE_ALGORITHM) { |
| 359 | reason = "The certificate uses an insecure algorithm"; |
| 360 | } |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 361 | |
| 362 | error_setg(errp, |
| 363 | "Our own certificate %s failed validation against %s: %s", |
| 364 | certFile, cacertFile, reason); |
| 365 | return -1; |
| 366 | } |
| 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | |
| 372 | static gnutls_x509_crt_t |
| 373 | qcrypto_tls_creds_load_cert(QCryptoTLSCredsX509 *creds, |
| 374 | const char *certFile, |
| 375 | bool isServer, |
| 376 | Error **errp) |
| 377 | { |
| 378 | gnutls_datum_t data; |
| 379 | gnutls_x509_crt_t cert = NULL; |
Daniel P. Berrangé | 57b9f11 | 2019-07-23 16:22:36 +0100 | [diff] [blame] | 380 | g_autofree char *buf = NULL; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 381 | gsize buflen; |
Markus Armbruster | 8cb846d | 2019-12-04 10:36:08 +0100 | [diff] [blame] | 382 | GError *gerr = NULL; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 383 | int ret = -1; |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 384 | int err; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 385 | |
| 386 | trace_qcrypto_tls_creds_x509_load_cert(creds, isServer, certFile); |
| 387 | |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 388 | err = gnutls_x509_crt_init(&cert); |
| 389 | if (err < 0) { |
| 390 | error_setg(errp, "Unable to initialize certificate: %s", |
| 391 | gnutls_strerror(err)); |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 392 | goto cleanup; |
| 393 | } |
| 394 | |
| 395 | if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) { |
| 396 | error_setg(errp, "Cannot load CA cert list %s: %s", |
| 397 | certFile, gerr->message); |
| 398 | g_error_free(gerr); |
| 399 | goto cleanup; |
| 400 | } |
| 401 | |
| 402 | data.data = (unsigned char *)buf; |
| 403 | data.size = strlen(buf); |
| 404 | |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 405 | err = gnutls_x509_crt_import(cert, &data, GNUTLS_X509_FMT_PEM); |
| 406 | if (err < 0) { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 407 | error_setg(errp, isServer ? |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 408 | "Unable to import server certificate %s: %s" : |
| 409 | "Unable to import client certificate %s: %s", |
| 410 | certFile, |
| 411 | gnutls_strerror(err)); |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 412 | goto cleanup; |
| 413 | } |
| 414 | |
| 415 | ret = 0; |
| 416 | |
| 417 | cleanup: |
| 418 | if (ret != 0) { |
| 419 | gnutls_x509_crt_deinit(cert); |
| 420 | cert = NULL; |
| 421 | } |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 422 | return cert; |
| 423 | } |
| 424 | |
| 425 | |
| 426 | static int |
| 427 | qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX509 *creds, |
| 428 | const char *certFile, |
| 429 | gnutls_x509_crt_t *certs, |
| 430 | unsigned int certMax, |
| 431 | size_t *ncerts, |
| 432 | Error **errp) |
| 433 | { |
| 434 | gnutls_datum_t data; |
Daniel P. Berrangé | 57b9f11 | 2019-07-23 16:22:36 +0100 | [diff] [blame] | 435 | g_autofree char *buf = NULL; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 436 | gsize buflen; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 437 | GError *gerr = NULL; |
| 438 | |
| 439 | *ncerts = 0; |
| 440 | trace_qcrypto_tls_creds_x509_load_cert_list(creds, certFile); |
| 441 | |
| 442 | if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) { |
| 443 | error_setg(errp, "Cannot load CA cert list %s: %s", |
| 444 | certFile, gerr->message); |
| 445 | g_error_free(gerr); |
Daniel P. Berrangé | 57b9f11 | 2019-07-23 16:22:36 +0100 | [diff] [blame] | 446 | return -1; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | data.data = (unsigned char *)buf; |
| 450 | data.size = strlen(buf); |
| 451 | |
| 452 | if (gnutls_x509_crt_list_import(certs, &certMax, &data, |
| 453 | GNUTLS_X509_FMT_PEM, 0) < 0) { |
| 454 | error_setg(errp, |
| 455 | "Unable to import CA certificate list %s", |
| 456 | certFile); |
Daniel P. Berrangé | 57b9f11 | 2019-07-23 16:22:36 +0100 | [diff] [blame] | 457 | return -1; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 458 | } |
| 459 | *ncerts = certMax; |
| 460 | |
Daniel P. Berrangé | 57b9f11 | 2019-07-23 16:22:36 +0100 | [diff] [blame] | 461 | return 0; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | |
| 465 | #define MAX_CERTS 16 |
| 466 | static int |
| 467 | qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509 *creds, |
| 468 | bool isServer, |
| 469 | const char *cacertFile, |
| 470 | const char *certFile, |
| 471 | Error **errp) |
| 472 | { |
| 473 | gnutls_x509_crt_t cert = NULL; |
| 474 | gnutls_x509_crt_t cacerts[MAX_CERTS]; |
| 475 | size_t ncacerts = 0; |
| 476 | size_t i; |
| 477 | int ret = -1; |
| 478 | |
| 479 | memset(cacerts, 0, sizeof(cacerts)); |
Daniel P. Berrange | 08cb175 | 2015-11-18 15:42:26 +0000 | [diff] [blame] | 480 | if (certFile && |
| 481 | access(certFile, R_OK) == 0) { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 482 | cert = qcrypto_tls_creds_load_cert(creds, |
| 483 | certFile, isServer, |
| 484 | errp); |
| 485 | if (!cert) { |
| 486 | goto cleanup; |
| 487 | } |
| 488 | } |
| 489 | if (access(cacertFile, R_OK) == 0) { |
| 490 | if (qcrypto_tls_creds_load_ca_cert_list(creds, |
| 491 | cacertFile, cacerts, |
| 492 | MAX_CERTS, &ncacerts, |
| 493 | errp) < 0) { |
| 494 | goto cleanup; |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | if (cert && |
| 499 | qcrypto_tls_creds_check_cert(creds, |
| 500 | cert, certFile, isServer, |
| 501 | false, errp) < 0) { |
| 502 | goto cleanup; |
| 503 | } |
| 504 | |
| 505 | for (i = 0; i < ncacerts; i++) { |
| 506 | if (qcrypto_tls_creds_check_cert(creds, |
| 507 | cacerts[i], cacertFile, |
| 508 | isServer, true, errp) < 0) { |
| 509 | goto cleanup; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | if (cert && ncacerts && |
| 514 | qcrypto_tls_creds_check_cert_pair(cert, certFile, cacerts, |
| 515 | ncacerts, cacertFile, |
| 516 | isServer, errp) < 0) { |
| 517 | goto cleanup; |
| 518 | } |
| 519 | |
| 520 | ret = 0; |
| 521 | |
| 522 | cleanup: |
| 523 | if (cert) { |
| 524 | gnutls_x509_crt_deinit(cert); |
| 525 | } |
| 526 | for (i = 0; i < ncacerts; i++) { |
| 527 | gnutls_x509_crt_deinit(cacerts[i]); |
| 528 | } |
| 529 | return ret; |
| 530 | } |
| 531 | |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 532 | |
| 533 | static int |
| 534 | qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds, |
| 535 | Error **errp) |
| 536 | { |
| 537 | char *cacert = NULL, *cacrl = NULL, *cert = NULL, |
| 538 | *key = NULL, *dhparams = NULL; |
| 539 | int ret; |
| 540 | int rv = -1; |
| 541 | |
| 542 | trace_qcrypto_tls_creds_x509_load(creds, |
| 543 | creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>"); |
| 544 | |
| 545 | if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { |
| 546 | if (qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 547 | QCRYPTO_TLS_CREDS_X509_CA_CERT, |
| 548 | true, &cacert, errp) < 0 || |
| 549 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 550 | QCRYPTO_TLS_CREDS_X509_CA_CRL, |
| 551 | false, &cacrl, errp) < 0 || |
| 552 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 553 | QCRYPTO_TLS_CREDS_X509_SERVER_CERT, |
| 554 | true, &cert, errp) < 0 || |
| 555 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 556 | QCRYPTO_TLS_CREDS_X509_SERVER_KEY, |
| 557 | true, &key, errp) < 0 || |
| 558 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 559 | QCRYPTO_TLS_CREDS_DH_PARAMS, |
| 560 | false, &dhparams, errp) < 0) { |
| 561 | goto cleanup; |
| 562 | } |
| 563 | } else { |
| 564 | if (qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 565 | QCRYPTO_TLS_CREDS_X509_CA_CERT, |
| 566 | true, &cacert, errp) < 0 || |
| 567 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 568 | QCRYPTO_TLS_CREDS_X509_CLIENT_CERT, |
| 569 | false, &cert, errp) < 0 || |
| 570 | qcrypto_tls_creds_get_path(&creds->parent_obj, |
| 571 | QCRYPTO_TLS_CREDS_X509_CLIENT_KEY, |
| 572 | false, &key, errp) < 0) { |
| 573 | goto cleanup; |
| 574 | } |
| 575 | } |
| 576 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 577 | if (creds->sanityCheck && |
| 578 | qcrypto_tls_creds_x509_sanity_check(creds, |
| 579 | creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER, |
| 580 | cacert, cert, errp) < 0) { |
| 581 | goto cleanup; |
| 582 | } |
| 583 | |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 584 | ret = gnutls_certificate_allocate_credentials(&creds->data); |
| 585 | if (ret < 0) { |
| 586 | error_setg(errp, "Cannot allocate credentials: '%s'", |
| 587 | gnutls_strerror(ret)); |
| 588 | goto cleanup; |
| 589 | } |
| 590 | |
| 591 | ret = gnutls_certificate_set_x509_trust_file(creds->data, |
| 592 | cacert, |
| 593 | GNUTLS_X509_FMT_PEM); |
| 594 | if (ret < 0) { |
| 595 | error_setg(errp, "Cannot load CA certificate '%s': %s", |
| 596 | cacert, gnutls_strerror(ret)); |
| 597 | goto cleanup; |
| 598 | } |
| 599 | |
| 600 | if (cert != NULL && key != NULL) { |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 601 | char *password = NULL; |
| 602 | if (creds->passwordid) { |
| 603 | password = qcrypto_secret_lookup_as_utf8(creds->passwordid, |
| 604 | errp); |
| 605 | if (!password) { |
| 606 | goto cleanup; |
| 607 | } |
| 608 | } |
| 609 | ret = gnutls_certificate_set_x509_key_file2(creds->data, |
| 610 | cert, key, |
| 611 | GNUTLS_X509_FMT_PEM, |
| 612 | password, |
| 613 | 0); |
| 614 | g_free(password); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 615 | if (ret < 0) { |
| 616 | error_setg(errp, "Cannot load certificate '%s' & key '%s': %s", |
| 617 | cert, key, gnutls_strerror(ret)); |
| 618 | goto cleanup; |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | if (cacrl != NULL) { |
| 623 | ret = gnutls_certificate_set_x509_crl_file(creds->data, |
| 624 | cacrl, |
| 625 | GNUTLS_X509_FMT_PEM); |
| 626 | if (ret < 0) { |
| 627 | error_setg(errp, "Cannot load CRL '%s': %s", |
| 628 | cacrl, gnutls_strerror(ret)); |
| 629 | goto cleanup; |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { |
| 634 | if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams, |
| 635 | &creds->parent_obj.dh_params, |
| 636 | errp) < 0) { |
| 637 | goto cleanup; |
| 638 | } |
| 639 | gnutls_certificate_set_dh_params(creds->data, |
| 640 | creds->parent_obj.dh_params); |
| 641 | } |
| 642 | |
| 643 | rv = 0; |
| 644 | cleanup: |
| 645 | g_free(cacert); |
| 646 | g_free(cacrl); |
| 647 | g_free(cert); |
| 648 | g_free(key); |
| 649 | g_free(dhparams); |
| 650 | return rv; |
| 651 | } |
| 652 | |
| 653 | |
| 654 | static void |
| 655 | qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds) |
| 656 | { |
| 657 | if (creds->data) { |
| 658 | gnutls_certificate_free_credentials(creds->data); |
| 659 | creds->data = NULL; |
| 660 | } |
Daniel P. Berrange | 61b9251 | 2015-11-18 14:41:35 +0000 | [diff] [blame] | 661 | if (creds->parent_obj.dh_params) { |
| 662 | gnutls_dh_params_deinit(creds->parent_obj.dh_params); |
| 663 | creds->parent_obj.dh_params = NULL; |
| 664 | } |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | |
| 668 | #else /* ! CONFIG_GNUTLS */ |
| 669 | |
| 670 | |
| 671 | static void |
| 672 | qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED, |
| 673 | Error **errp) |
| 674 | { |
| 675 | error_setg(errp, "TLS credentials support requires GNUTLS"); |
| 676 | } |
| 677 | |
| 678 | |
| 679 | static void |
| 680 | qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED) |
| 681 | { |
| 682 | /* nada */ |
| 683 | } |
| 684 | |
| 685 | |
| 686 | #endif /* ! CONFIG_GNUTLS */ |
| 687 | |
| 688 | |
| 689 | static void |
Paolo Bonzini | 0310641 | 2022-05-09 11:42:23 +0200 | [diff] [blame] | 690 | qcrypto_tls_creds_x509_complete(UserCreatable *uc, Error **errp) |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 691 | { |
Paolo Bonzini | 0310641 | 2022-05-09 11:42:23 +0200 | [diff] [blame] | 692 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(uc); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 693 | |
Paolo Bonzini | 0310641 | 2022-05-09 11:42:23 +0200 | [diff] [blame] | 694 | qcrypto_tls_creds_x509_load(creds, errp); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 695 | } |
| 696 | |
| 697 | |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 698 | static void |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 699 | qcrypto_tls_creds_x509_prop_set_sanity(Object *obj, |
| 700 | bool value, |
| 701 | Error **errp G_GNUC_UNUSED) |
| 702 | { |
| 703 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 704 | |
| 705 | creds->sanityCheck = value; |
| 706 | } |
| 707 | |
| 708 | |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 709 | static void |
| 710 | qcrypto_tls_creds_x509_prop_set_passwordid(Object *obj, |
| 711 | const char *value, |
| 712 | Error **errp G_GNUC_UNUSED) |
| 713 | { |
| 714 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 715 | |
| 716 | creds->passwordid = g_strdup(value); |
| 717 | } |
| 718 | |
| 719 | |
| 720 | static char * |
| 721 | qcrypto_tls_creds_x509_prop_get_passwordid(Object *obj, |
| 722 | Error **errp G_GNUC_UNUSED) |
| 723 | { |
| 724 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 725 | |
| 726 | return g_strdup(creds->passwordid); |
| 727 | } |
| 728 | |
| 729 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 730 | static bool |
| 731 | qcrypto_tls_creds_x509_prop_get_sanity(Object *obj, |
| 732 | Error **errp G_GNUC_UNUSED) |
| 733 | { |
| 734 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 735 | |
| 736 | return creds->sanityCheck; |
| 737 | } |
| 738 | |
| 739 | |
Zihao Chang | a29acc9 | 2021-03-16 15:58:43 +0800 | [diff] [blame] | 740 | #ifdef CONFIG_GNUTLS |
| 741 | |
| 742 | |
| 743 | static bool |
| 744 | qcrypto_tls_creds_x509_reload(QCryptoTLSCreds *creds, Error **errp) |
| 745 | { |
| 746 | QCryptoTLSCredsX509 *x509_creds = QCRYPTO_TLS_CREDS_X509(creds); |
| 747 | Error *local_err = NULL; |
| 748 | gnutls_certificate_credentials_t creds_data = x509_creds->data; |
| 749 | gnutls_dh_params_t creds_dh_params = x509_creds->parent_obj.dh_params; |
| 750 | |
| 751 | x509_creds->data = NULL; |
| 752 | x509_creds->parent_obj.dh_params = NULL; |
| 753 | qcrypto_tls_creds_x509_load(x509_creds, &local_err); |
| 754 | if (local_err) { |
| 755 | qcrypto_tls_creds_x509_unload(x509_creds); |
| 756 | x509_creds->data = creds_data; |
| 757 | x509_creds->parent_obj.dh_params = creds_dh_params; |
| 758 | error_propagate(errp, local_err); |
| 759 | return false; |
| 760 | } |
| 761 | |
| 762 | if (creds_data) { |
| 763 | gnutls_certificate_free_credentials(creds_data); |
| 764 | } |
| 765 | if (creds_dh_params) { |
| 766 | gnutls_dh_params_deinit(creds_dh_params); |
| 767 | } |
| 768 | return true; |
| 769 | } |
| 770 | |
| 771 | |
| 772 | #else /* ! CONFIG_GNUTLS */ |
| 773 | |
| 774 | |
| 775 | static bool |
| 776 | qcrypto_tls_creds_x509_reload(QCryptoTLSCreds *creds, Error **errp) |
| 777 | { |
| 778 | return false; |
| 779 | } |
| 780 | |
| 781 | |
| 782 | #endif /* ! CONFIG_GNUTLS */ |
| 783 | |
| 784 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 785 | static void |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 786 | qcrypto_tls_creds_x509_init(Object *obj) |
| 787 | { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 788 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 789 | |
| 790 | creds->sanityCheck = true; |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 791 | } |
| 792 | |
| 793 | |
| 794 | static void |
| 795 | qcrypto_tls_creds_x509_finalize(Object *obj) |
| 796 | { |
| 797 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 798 | |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 799 | g_free(creds->passwordid); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 800 | qcrypto_tls_creds_x509_unload(creds); |
| 801 | } |
| 802 | |
| 803 | |
| 804 | static void |
| 805 | qcrypto_tls_creds_x509_class_init(ObjectClass *oc, void *data) |
| 806 | { |
| 807 | UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); |
Zihao Chang | a29acc9 | 2021-03-16 15:58:43 +0800 | [diff] [blame] | 808 | QCryptoTLSCredsClass *ctcc = QCRYPTO_TLS_CREDS_CLASS(oc); |
| 809 | |
| 810 | ctcc->reload = qcrypto_tls_creds_x509_reload; |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 811 | |
| 812 | ucc->complete = qcrypto_tls_creds_x509_complete; |
Daniel P. Berrange | 9884abe | 2015-08-24 18:46:57 +0100 | [diff] [blame] | 813 | |
Daniel P. Berrange | 9884abe | 2015-08-24 18:46:57 +0100 | [diff] [blame] | 814 | object_class_property_add_bool(oc, "sanity-check", |
| 815 | qcrypto_tls_creds_x509_prop_get_sanity, |
Markus Armbruster | d262312 | 2020-05-05 17:29:22 +0200 | [diff] [blame] | 816 | qcrypto_tls_creds_x509_prop_set_sanity); |
Daniel P. Berrange | 9884abe | 2015-08-24 18:46:57 +0100 | [diff] [blame] | 817 | object_class_property_add_str(oc, "passwordid", |
| 818 | qcrypto_tls_creds_x509_prop_get_passwordid, |
Markus Armbruster | d262312 | 2020-05-05 17:29:22 +0200 | [diff] [blame] | 819 | qcrypto_tls_creds_x509_prop_set_passwordid); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | |
| 823 | static const TypeInfo qcrypto_tls_creds_x509_info = { |
| 824 | .parent = TYPE_QCRYPTO_TLS_CREDS, |
| 825 | .name = TYPE_QCRYPTO_TLS_CREDS_X509, |
| 826 | .instance_size = sizeof(QCryptoTLSCredsX509), |
| 827 | .instance_init = qcrypto_tls_creds_x509_init, |
| 828 | .instance_finalize = qcrypto_tls_creds_x509_finalize, |
| 829 | .class_size = sizeof(QCryptoTLSCredsX509Class), |
| 830 | .class_init = qcrypto_tls_creds_x509_class_init, |
| 831 | .interfaces = (InterfaceInfo[]) { |
| 832 | { TYPE_USER_CREATABLE }, |
| 833 | { } |
| 834 | } |
| 835 | }; |
| 836 | |
| 837 | |
| 838 | static void |
| 839 | qcrypto_tls_creds_x509_register_types(void) |
| 840 | { |
| 841 | type_register_static(&qcrypto_tls_creds_x509_info); |
| 842 | } |
| 843 | |
| 844 | |
| 845 | type_init(qcrypto_tls_creds_x509_register_types); |