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 |
| 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 | |
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" |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 26 | #include "qom/object_interfaces.h" |
| 27 | #include "trace.h" |
| 28 | |
| 29 | |
| 30 | #ifdef CONFIG_GNUTLS |
| 31 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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); |
Daniel P. Berrange | 0e1d024 | 2015-11-13 17:45:27 +0000 | [diff] [blame] | 261 | buffer = NULL; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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; |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 395 | int err; |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 396 | |
| 397 | trace_qcrypto_tls_creds_x509_load_cert(creds, isServer, certFile); |
| 398 | |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 399 | err = gnutls_x509_crt_init(&cert); |
| 400 | if (err < 0) { |
| 401 | error_setg(errp, "Unable to initialize certificate: %s", |
| 402 | gnutls_strerror(err)); |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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 | |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 416 | err = gnutls_x509_crt_import(cert, &data, GNUTLS_X509_FMT_PEM); |
| 417 | if (err < 0) { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 418 | error_setg(errp, isServer ? |
Alex Bligh | b7b6816 | 2016-04-05 20:33:48 +0100 | [diff] [blame] | 419 | "Unable to import server certificate %s: %s" : |
| 420 | "Unable to import client certificate %s: %s", |
| 421 | certFile, |
| 422 | gnutls_strerror(err)); |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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)); |
Daniel P. Berrange | 08cb175 | 2015-11-18 15:42:26 +0000 | [diff] [blame] | 497 | if (certFile && |
| 498 | access(certFile, R_OK) == 0) { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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 | |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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 | |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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) { |
Gonglei | d9269b2 | 2016-09-05 20:36:19 +0800 | [diff] [blame] | 618 | #if LIBGNUTLS_VERSION_NUMBER >= 0x030111 |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 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); |
Gonglei | d9269b2 | 2016-09-05 20:36:19 +0800 | [diff] [blame] | 633 | #else /* LIBGNUTLS_VERSION_NUMBER < 0x030111 */ |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 634 | if (creds->passwordid) { |
| 635 | error_setg(errp, "PKCS8 decryption requires GNUTLS >= 3.1.11"); |
| 636 | goto cleanup; |
| 637 | } |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 638 | ret = gnutls_certificate_set_x509_key_file(creds->data, |
| 639 | cert, key, |
| 640 | GNUTLS_X509_FMT_PEM); |
Gonglei | d9269b2 | 2016-09-05 20:36:19 +0800 | [diff] [blame] | 641 | #endif |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 | } |
Daniel P. Berrange | 61b9251 | 2015-11-18 14:41:35 +0000 | [diff] [blame] | 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 | } |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 | |
| 758 | static void |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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 | |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 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 | |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 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 | |
| 800 | static void |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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 | { |
Daniel P. Berrange | 9a2fd43 | 2015-04-13 14:01:39 +0100 | [diff] [blame] | 810 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 811 | |
| 812 | creds->sanityCheck = true; |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 813 | } |
| 814 | |
| 815 | |
| 816 | static void |
| 817 | qcrypto_tls_creds_x509_finalize(Object *obj) |
| 818 | { |
| 819 | QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj); |
| 820 | |
Daniel P. Berrange | 1d7b5b4 | 2015-10-15 16:14:42 +0100 | [diff] [blame] | 821 | g_free(creds->passwordid); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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; |
Daniel P. Berrange | 9884abe | 2015-08-24 18:46:57 +0100 | [diff] [blame] | 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); |
Daniel P. Berrange | 85bcbc7 | 2015-03-13 17:39:26 +0000 | [diff] [blame] | 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); |