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hostapd: Update vendor branch to 0.6.10
[dragonfly.git] / contrib / hostapd / src / crypto / tls_openssl.c
blobb5a1d64f53bd1a1b01f14e7ce3b3b65b793ce4d1
1 /*
2 * WPA Supplicant / SSL/TLS interface functions for openssl
3 * Copyright (c) 2004-2008, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15 #include "includes.h"
16
17 #ifndef CONFIG_SMARTCARD
18 #ifndef OPENSSL_NO_ENGINE
19 #define OPENSSL_NO_ENGINE
20 #endif
21 #endif
22
23 #include <openssl/ssl.h>
24 #include <openssl/err.h>
25 #include <openssl/pkcs12.h>
26 #include <openssl/x509v3.h>
27 #ifndef OPENSSL_NO_ENGINE
28 #include <openssl/engine.h>
29 #endif /* OPENSSL_NO_ENGINE */
30
31 #include "common.h"
32 #include "tls.h"
33
34 #if OPENSSL_VERSION_NUMBER >= 0x0090800fL
35 #define OPENSSL_d2i_TYPE const unsigned char **
36 #else
37 #define OPENSSL_d2i_TYPE unsigned char **
38 #endif
39
40 #ifdef SSL_F_SSL_SET_SESSION_TICKET_EXT
41 #ifdef SSL_OP_NO_TICKET
42 /*
43 * Session ticket override patch was merged into OpenSSL 0.9.9 tree on
44 * 2008-11-15. This version uses a bit different API compared to the old patch.
45 */
46 #define CONFIG_OPENSSL_TICKET_OVERRIDE
47 #endif
48 #endif
49
50 static int tls_openssl_ref_count = 0;
51
52 struct tls_connection {
53 SSL *ssl;
54 BIO *ssl_in, *ssl_out;
55 #ifndef OPENSSL_NO_ENGINE
56 ENGINE *engine; /* functional reference to the engine */
57 EVP_PKEY *private_key; /* the private key if using engine */
58 #endif /* OPENSSL_NO_ENGINE */
59 char *subject_match, *altsubject_match;
60 int read_alerts, write_alerts, failed;
61
62 tls_session_ticket_cb session_ticket_cb;
63 void *session_ticket_cb_ctx;
64
65 /* SessionTicket received from OpenSSL hello_extension_cb (server) */
66 u8 *session_ticket;
67 size_t session_ticket_len;
68 };
69
70
71 #ifdef CONFIG_NO_STDOUT_DEBUG
72
73 static void _tls_show_errors(void)
74 {
75 unsigned long err;
76
77 while ((err = ERR_get_error())) {
78 /* Just ignore the errors, since stdout is disabled */
79 }
80 }
81 #define tls_show_errors(l, f, t) _tls_show_errors()
82
83 #else /* CONFIG_NO_STDOUT_DEBUG */
84
85 static void tls_show_errors(int level, const char *func, const char *txt)
86 {
87 unsigned long err;
88
89 wpa_printf(level, "OpenSSL: %s - %s %s",
90 func, txt, ERR_error_string(ERR_get_error(), NULL));
91
92 while ((err = ERR_get_error())) {
93 wpa_printf(MSG_INFO, "OpenSSL: pending error: %s",
94 ERR_error_string(err, NULL));
95 }
96 }
97
98 #endif /* CONFIG_NO_STDOUT_DEBUG */
99
100
101 #ifdef CONFIG_NATIVE_WINDOWS
102
103 /* Windows CryptoAPI and access to certificate stores */
104 #include <wincrypt.h>
105
106 #ifdef __MINGW32_VERSION
107 /*
108 * MinGW does not yet include all the needed definitions for CryptoAPI, so
109 * define here whatever extra is needed.
110 */
111 #define CERT_SYSTEM_STORE_CURRENT_USER (1 << 16)
112 #define CERT_STORE_READONLY_FLAG 0x00008000
113 #define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
114
115 #endif /* __MINGW32_VERSION */
116
117
118 struct cryptoapi_rsa_data {
119 const CERT_CONTEXT *cert;
120 HCRYPTPROV crypt_prov;
121 DWORD key_spec;
122 BOOL free_crypt_prov;
123 };
124
125
126 static void cryptoapi_error(const char *msg)
127 {
128 wpa_printf(MSG_INFO, "CryptoAPI: %s; err=%u",
129 msg, (unsigned int) GetLastError());
130 }
131
132
133 static int cryptoapi_rsa_pub_enc(int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding)
135 {
136 wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
137 return 0;
138 }
139
140
141 static int cryptoapi_rsa_pub_dec(int flen, const unsigned char *from,
142 unsigned char *to, RSA *rsa, int padding)
143 {
144 wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
145 return 0;
146 }
147
148
149 static int cryptoapi_rsa_priv_enc(int flen, const unsigned char *from,
150 unsigned char *to, RSA *rsa, int padding)
151 {
152 struct cryptoapi_rsa_data *priv =
153 (struct cryptoapi_rsa_data *) rsa->meth->app_data;
154 HCRYPTHASH hash;
155 DWORD hash_size, len, i;
156 unsigned char *buf = NULL;
157 int ret = 0;
158
159 if (priv == NULL) {
160 RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
161 ERR_R_PASSED_NULL_PARAMETER);
162 return 0;
163 }
164
165 if (padding != RSA_PKCS1_PADDING) {
166 RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
167 RSA_R_UNKNOWN_PADDING_TYPE);
168 return 0;
169 }
170
171 if (flen != 16 /* MD5 */ + 20 /* SHA-1 */) {
172 wpa_printf(MSG_INFO, "%s - only MD5-SHA1 hash supported",
173 __func__);
174 RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
175 RSA_R_INVALID_MESSAGE_LENGTH);
176 return 0;
177 }
178
179 if (!CryptCreateHash(priv->crypt_prov, CALG_SSL3_SHAMD5, 0, 0, &hash))
180 {
181 cryptoapi_error("CryptCreateHash failed");
182 return 0;
183 }
184
185 len = sizeof(hash_size);
186 if (!CryptGetHashParam(hash, HP_HASHSIZE, (BYTE *) &hash_size, &len,
187 0)) {
188 cryptoapi_error("CryptGetHashParam failed");
189 goto err;
190 }
191
192 if ((int) hash_size != flen) {
193 wpa_printf(MSG_INFO, "CryptoAPI: Invalid hash size (%u != %d)",
194 (unsigned) hash_size, flen);
195 RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
196 RSA_R_INVALID_MESSAGE_LENGTH);
197 goto err;
198 }
199 if (!CryptSetHashParam(hash, HP_HASHVAL, (BYTE * ) from, 0)) {
200 cryptoapi_error("CryptSetHashParam failed");
201 goto err;
202 }
203
204 len = RSA_size(rsa);
205 buf = os_malloc(len);
206 if (buf == NULL) {
207 RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);
208 goto err;
209 }
210
211 if (!CryptSignHash(hash, priv->key_spec, NULL, 0, buf, &len)) {
212 cryptoapi_error("CryptSignHash failed");
213 goto err;
214 }
215
216 for (i = 0; i < len; i++)
217 to[i] = buf[len - i - 1];
218 ret = len;
219
220 err:
221 os_free(buf);
222 CryptDestroyHash(hash);
223
224 return ret;
225 }
226
227
228 static int cryptoapi_rsa_priv_dec(int flen, const unsigned char *from,
229 unsigned char *to, RSA *rsa, int padding)
230 {
231 wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
232 return 0;
233 }
234
235
236 static void cryptoapi_free_data(struct cryptoapi_rsa_data *priv)
237 {
238 if (priv == NULL)
239 return;
240 if (priv->crypt_prov && priv->free_crypt_prov)
241 CryptReleaseContext(priv->crypt_prov, 0);
242 if (priv->cert)
243 CertFreeCertificateContext(priv->cert);
244 os_free(priv);
245 }
246
247
248 static int cryptoapi_finish(RSA *rsa)
249 {
250 cryptoapi_free_data((struct cryptoapi_rsa_data *) rsa->meth->app_data);
251 os_free((void *) rsa->meth);
252 rsa->meth = NULL;
253 return 1;
254 }
255
256
257 static const CERT_CONTEXT * cryptoapi_find_cert(const char *name, DWORD store)
258 {
259 HCERTSTORE cs;
260 const CERT_CONTEXT *ret = NULL;
261
262 cs = CertOpenStore((LPCSTR) CERT_STORE_PROV_SYSTEM, 0, 0,
263 store | CERT_STORE_OPEN_EXISTING_FLAG |
264 CERT_STORE_READONLY_FLAG, L"MY");
265 if (cs == NULL) {
266 cryptoapi_error("Failed to open 'My system store'");
267 return NULL;
268 }
269
270 if (strncmp(name, "cert://", 7) == 0) {
271 unsigned short wbuf[255];
272 MultiByteToWideChar(CP_ACP, 0, name + 7, -1, wbuf, 255);
273 ret = CertFindCertificateInStore(cs, X509_ASN_ENCODING |
274 PKCS_7_ASN_ENCODING,
275 0, CERT_FIND_SUBJECT_STR,
276 wbuf, NULL);
277 } else if (strncmp(name, "hash://", 7) == 0) {
278 CRYPT_HASH_BLOB blob;
279 int len;
280 const char *hash = name + 7;
281 unsigned char *buf;
282
283 len = os_strlen(hash) / 2;
284 buf = os_malloc(len);
285 if (buf && hexstr2bin(hash, buf, len) == 0) {
286 blob.cbData = len;
287 blob.pbData = buf;
288 ret = CertFindCertificateInStore(cs,
289 X509_ASN_ENCODING |
290 PKCS_7_ASN_ENCODING,
291 0, CERT_FIND_HASH,
292 &blob, NULL);
293 }
294 os_free(buf);
295 }
296
297 CertCloseStore(cs, 0);
298
299 return ret;
300 }
301
302
303 static int tls_cryptoapi_cert(SSL *ssl, const char *name)
304 {
305 X509 *cert = NULL;
306 RSA *rsa = NULL, *pub_rsa;
307 struct cryptoapi_rsa_data *priv;
308 RSA_METHOD *rsa_meth;
309
310 if (name == NULL ||
311 (strncmp(name, "cert://", 7) != 0 &&
312 strncmp(name, "hash://", 7) != 0))
313 return -1;
314
315 priv = os_zalloc(sizeof(*priv));
316 rsa_meth = os_zalloc(sizeof(*rsa_meth));
317 if (priv == NULL || rsa_meth == NULL) {
318 wpa_printf(MSG_WARNING, "CryptoAPI: Failed to allocate memory "
319 "for CryptoAPI RSA method");
320 os_free(priv);
321 os_free(rsa_meth);
322 return -1;
323 }
324
325 priv->cert = cryptoapi_find_cert(name, CERT_SYSTEM_STORE_CURRENT_USER);
326 if (priv->cert == NULL) {
327 priv->cert = cryptoapi_find_cert(
328 name, CERT_SYSTEM_STORE_LOCAL_MACHINE);
329 }
330 if (priv->cert == NULL) {
331 wpa_printf(MSG_INFO, "CryptoAPI: Could not find certificate "
332 "'%s'", name);
333 goto err;
334 }
335
336 cert = d2i_X509(NULL, (OPENSSL_d2i_TYPE) &priv->cert->pbCertEncoded,
337 priv->cert->cbCertEncoded);
338 if (cert == NULL) {
339 wpa_printf(MSG_INFO, "CryptoAPI: Could not process X509 DER "
340 "encoding");
341 goto err;
342 }
343
344 if (!CryptAcquireCertificatePrivateKey(priv->cert,
345 CRYPT_ACQUIRE_COMPARE_KEY_FLAG,
346 NULL, &priv->crypt_prov,
347 &priv->key_spec,
348 &priv->free_crypt_prov)) {
349 cryptoapi_error("Failed to acquire a private key for the "
350 "certificate");
351 goto err;
352 }
353
354 rsa_meth->name = "Microsoft CryptoAPI RSA Method";
355 rsa_meth->rsa_pub_enc = cryptoapi_rsa_pub_enc;
356 rsa_meth->rsa_pub_dec = cryptoapi_rsa_pub_dec;
357 rsa_meth->rsa_priv_enc = cryptoapi_rsa_priv_enc;
358 rsa_meth->rsa_priv_dec = cryptoapi_rsa_priv_dec;
359 rsa_meth->finish = cryptoapi_finish;
360 rsa_meth->flags = RSA_METHOD_FLAG_NO_CHECK;
361 rsa_meth->app_data = (char *) priv;
362
363 rsa = RSA_new();
364 if (rsa == NULL) {
365 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,
366 ERR_R_MALLOC_FAILURE);
367 goto err;
368 }
369
370 if (!SSL_use_certificate(ssl, cert)) {
371 RSA_free(rsa);
372 rsa = NULL;
373 goto err;
374 }
375 pub_rsa = cert->cert_info->key->pkey->pkey.rsa;
376 X509_free(cert);
377 cert = NULL;
378
379 rsa->n = BN_dup(pub_rsa->n);
380 rsa->e = BN_dup(pub_rsa->e);
381 if (!RSA_set_method(rsa, rsa_meth))
382 goto err;
383
384 if (!SSL_use_RSAPrivateKey(ssl, rsa))
385 goto err;
386 RSA_free(rsa);
387
388 return 0;
389
390 err:
391 if (cert)
392 X509_free(cert);
393 if (rsa)
394 RSA_free(rsa);
395 else {
396 os_free(rsa_meth);
397 cryptoapi_free_data(priv);
398 }
399 return -1;
400 }
401
402
403 static int tls_cryptoapi_ca_cert(SSL_CTX *ssl_ctx, SSL *ssl, const char *name)
404 {
405 HCERTSTORE cs;
406 PCCERT_CONTEXT ctx = NULL;
407 X509 *cert;
408 char buf[128];
409 const char *store;
410 #ifdef UNICODE
411 WCHAR *wstore;
412 #endif /* UNICODE */
413
414 if (name == NULL || strncmp(name, "cert_store://", 13) != 0)
415 return -1;
416
417 store = name + 13;
418 #ifdef UNICODE
419 wstore = os_malloc((os_strlen(store) + 1) * sizeof(WCHAR));
420 if (wstore == NULL)
421 return -1;
422 wsprintf(wstore, L"%S", store);
423 cs = CertOpenSystemStore(0, wstore);
424 os_free(wstore);
425 #else /* UNICODE */
426 cs = CertOpenSystemStore(0, store);
427 #endif /* UNICODE */
428 if (cs == NULL) {
429 wpa_printf(MSG_DEBUG, "%s: failed to open system cert store "
430 "'%s': error=%d", __func__, store,
431 (int) GetLastError());
432 return -1;
433 }
434
435 while ((ctx = CertEnumCertificatesInStore(cs, ctx))) {
436 cert = d2i_X509(NULL, (OPENSSL_d2i_TYPE) &ctx->pbCertEncoded,
437 ctx->cbCertEncoded);
438 if (cert == NULL) {
439 wpa_printf(MSG_INFO, "CryptoAPI: Could not process "
440 "X509 DER encoding for CA cert");
441 continue;
442 }
443
444 X509_NAME_oneline(X509_get_subject_name(cert), buf,
445 sizeof(buf));
446 wpa_printf(MSG_DEBUG, "OpenSSL: Loaded CA certificate for "
447 "system certificate store: subject='%s'", buf);
448
449 if (!X509_STORE_add_cert(ssl_ctx->cert_store, cert)) {
450 tls_show_errors(MSG_WARNING, __func__,
451 "Failed to add ca_cert to OpenSSL "
452 "certificate store");
453 }
454
455 X509_free(cert);
456 }
457
458 if (!CertCloseStore(cs, 0)) {
459 wpa_printf(MSG_DEBUG, "%s: failed to close system cert store "
460 "'%s': error=%d", __func__, name + 13,
461 (int) GetLastError());
462 }
463
464 return 0;
465 }
466
467
468 #else /* CONFIG_NATIVE_WINDOWS */
469
470 static int tls_cryptoapi_cert(SSL *ssl, const char *name)
471 {
472 return -1;
473 }
474
475 #endif /* CONFIG_NATIVE_WINDOWS */
476
477
478 static void ssl_info_cb(const SSL *ssl, int where, int ret)
479 {
480 const char *str;
481 int w;
482
483 wpa_printf(MSG_DEBUG, "SSL: (where=0x%x ret=0x%x)", where, ret);
484 w = where & ~SSL_ST_MASK;
485 if (w & SSL_ST_CONNECT)
486 str = "SSL_connect";
487 else if (w & SSL_ST_ACCEPT)
488 str = "SSL_accept";
489 else
490 str = "undefined";
491
492 if (where & SSL_CB_LOOP) {
493 wpa_printf(MSG_DEBUG, "SSL: %s:%s",
494 str, SSL_state_string_long(ssl));
495 } else if (where & SSL_CB_ALERT) {
496 wpa_printf(MSG_INFO, "SSL: SSL3 alert: %s:%s:%s",
497 where & SSL_CB_READ ?
498 "read (remote end reported an error)" :
499 "write (local SSL3 detected an error)",
500 SSL_alert_type_string_long(ret),
501 SSL_alert_desc_string_long(ret));
502 if ((ret >> 8) == SSL3_AL_FATAL) {
503 struct tls_connection *conn =
504 SSL_get_app_data((SSL *) ssl);
505 if (where & SSL_CB_READ)
506 conn->read_alerts++;
507 else
508 conn->write_alerts++;
509 }
510 } else if (where & SSL_CB_EXIT && ret <= 0) {
511 wpa_printf(MSG_DEBUG, "SSL: %s:%s in %s",
512 str, ret == 0 ? "failed" : "error",
513 SSL_state_string_long(ssl));
514 }
515 }
516
517
518 #ifndef OPENSSL_NO_ENGINE
519 /**
520 * tls_engine_load_dynamic_generic - load any openssl engine
521 * @pre: an array of commands and values that load an engine initialized
522 * in the engine specific function
523 * @post: an array of commands and values that initialize an already loaded
524 * engine (or %NULL if not required)
525 * @id: the engine id of the engine to load (only required if post is not %NULL
526 *
527 * This function is a generic function that loads any openssl engine.
528 *
529 * Returns: 0 on success, -1 on failure
530 */
531 static int tls_engine_load_dynamic_generic(const char *pre[],
532 const char *post[], const char *id)
533 {
534 ENGINE *engine;
535 const char *dynamic_id = "dynamic";
536
537 engine = ENGINE_by_id(id);
538 if (engine) {
539 ENGINE_free(engine);
540 wpa_printf(MSG_DEBUG, "ENGINE: engine '%s' is already "
541 "available", id);
542 return 0;
543 }
544 ERR_clear_error();
545
546 engine = ENGINE_by_id(dynamic_id);
547 if (engine == NULL) {
548 wpa_printf(MSG_INFO, "ENGINE: Can't find engine %s [%s]",
549 dynamic_id,
550 ERR_error_string(ERR_get_error(), NULL));
551 return -1;
552 }
553
554 /* Perform the pre commands. This will load the engine. */
555 while (pre && pre[0]) {
556 wpa_printf(MSG_DEBUG, "ENGINE: '%s' '%s'", pre[0], pre[1]);
557 if (ENGINE_ctrl_cmd_string(engine, pre[0], pre[1], 0) == 0) {
558 wpa_printf(MSG_INFO, "ENGINE: ctrl cmd_string failed: "
559 "%s %s [%s]", pre[0], pre[1],
560 ERR_error_string(ERR_get_error(), NULL));
561 ENGINE_free(engine);
562 return -1;
563 }
564 pre += 2;
565 }
566
567 /*
568 * Free the reference to the "dynamic" engine. The loaded engine can
569 * now be looked up using ENGINE_by_id().
570 */
571 ENGINE_free(engine);
572
573 engine = ENGINE_by_id(id);
574 if (engine == NULL) {
575 wpa_printf(MSG_INFO, "ENGINE: Can't find engine %s [%s]",
576 id, ERR_error_string(ERR_get_error(), NULL));
577 return -1;
578 }
579
580 while (post && post[0]) {
581 wpa_printf(MSG_DEBUG, "ENGINE: '%s' '%s'", post[0], post[1]);
582 if (ENGINE_ctrl_cmd_string(engine, post[0], post[1], 0) == 0) {
583 wpa_printf(MSG_DEBUG, "ENGINE: ctrl cmd_string failed:"
584 " %s %s [%s]", post[0], post[1],
585 ERR_error_string(ERR_get_error(), NULL));
586 ENGINE_remove(engine);
587 ENGINE_free(engine);
588 return -1;
589 }
590 post += 2;
591 }
592 ENGINE_free(engine);
593
594 return 0;
595 }
596
597
598 /**
599 * tls_engine_load_dynamic_pkcs11 - load the pkcs11 engine provided by opensc
600 * @pkcs11_so_path: pksc11_so_path from the configuration
601 * @pcks11_module_path: pkcs11_module_path from the configuration
602 */
603 static int tls_engine_load_dynamic_pkcs11(const char *pkcs11_so_path,
604 const char *pkcs11_module_path)
605 {
606 char *engine_id = "pkcs11";
607 const char *pre_cmd[] = {
608 "SO_PATH", NULL /* pkcs11_so_path */,
609 "ID", NULL /* engine_id */,
610 "LIST_ADD", "1",
611 /* "NO_VCHECK", "1", */
612 "LOAD", NULL,
613 NULL, NULL
614 };
615 const char *post_cmd[] = {
616 "MODULE_PATH", NULL /* pkcs11_module_path */,
617 NULL, NULL
618 };
619
620 if (!pkcs11_so_path || !pkcs11_module_path)
621 return 0;
622
623 pre_cmd[1] = pkcs11_so_path;
624 pre_cmd[3] = engine_id;
625 post_cmd[1] = pkcs11_module_path;
626
627 wpa_printf(MSG_DEBUG, "ENGINE: Loading pkcs11 Engine from %s",
628 pkcs11_so_path);
629
630 return tls_engine_load_dynamic_generic(pre_cmd, post_cmd, engine_id);
631 }
632
633
634 /**
635 * tls_engine_load_dynamic_opensc - load the opensc engine provided by opensc
636 * @opensc_so_path: opensc_so_path from the configuration
637 */
638 static int tls_engine_load_dynamic_opensc(const char *opensc_so_path)
639 {
640 char *engine_id = "opensc";
641 const char *pre_cmd[] = {
642 "SO_PATH", NULL /* opensc_so_path */,
643 "ID", NULL /* engine_id */,
644 "LIST_ADD", "1",
645 "LOAD", NULL,
646 NULL, NULL
647 };
648
649 if (!opensc_so_path)
650 return 0;
651
652 pre_cmd[1] = opensc_so_path;
653 pre_cmd[3] = engine_id;
654
655 wpa_printf(MSG_DEBUG, "ENGINE: Loading OpenSC Engine from %s",
656 opensc_so_path);
657
658 return tls_engine_load_dynamic_generic(pre_cmd, NULL, engine_id);
659 }
660 #endif /* OPENSSL_NO_ENGINE */
661
662
663 void * tls_init(const struct tls_config *conf)
664 {
665 SSL_CTX *ssl;
666
667 if (tls_openssl_ref_count == 0) {
668 SSL_load_error_strings();
669 SSL_library_init();
670 #ifndef OPENSSL_NO_SHA256
671 EVP_add_digest(EVP_sha256());
672 #endif /* OPENSSL_NO_SHA256 */
673 /* TODO: if /dev/urandom is available, PRNG is seeded
674 * automatically. If this is not the case, random data should
675 * be added here. */
676
677 #ifdef PKCS12_FUNCS
678 #ifndef OPENSSL_NO_RC2
679 /*
680 * 40-bit RC2 is commonly used in PKCS#12 files, so enable it.
681 * This is enabled by PKCS12_PBE_add() in OpenSSL 0.9.8
682 * versions, but it looks like OpenSSL 1.0.0 does not do that
683 * anymore.
684 */
685 EVP_add_cipher(EVP_rc2_40_cbc());
686 #endif /* OPENSSL_NO_RC2 */
687 PKCS12_PBE_add();
688 #endif /* PKCS12_FUNCS */
689 }
690 tls_openssl_ref_count++;
691
692 ssl = SSL_CTX_new(TLSv1_method());
693 if (ssl == NULL)
694 return NULL;
695
696 SSL_CTX_set_info_callback(ssl, ssl_info_cb);
697
698 #ifndef OPENSSL_NO_ENGINE
699 if (conf &&
700 (conf->opensc_engine_path || conf->pkcs11_engine_path ||
701 conf->pkcs11_module_path)) {
702 wpa_printf(MSG_DEBUG, "ENGINE: Loading dynamic engine");
703 ERR_load_ENGINE_strings();
704 ENGINE_load_dynamic();
705
706 if (tls_engine_load_dynamic_opensc(conf->opensc_engine_path) ||
707 tls_engine_load_dynamic_pkcs11(conf->pkcs11_engine_path,
708 conf->pkcs11_module_path)) {
709 tls_deinit(ssl);
710 return NULL;
711 }
712 }
713 #endif /* OPENSSL_NO_ENGINE */
714
715 return ssl;
716 }
717
718
719 void tls_deinit(void *ssl_ctx)
720 {
721 SSL_CTX *ssl = ssl_ctx;
722 SSL_CTX_free(ssl);
723
724 tls_openssl_ref_count--;
725 if (tls_openssl_ref_count == 0) {
726 #ifndef OPENSSL_NO_ENGINE
727 ENGINE_cleanup();
728 #endif /* OPENSSL_NO_ENGINE */
729 CRYPTO_cleanup_all_ex_data();
730 ERR_remove_state(0);
731 ERR_free_strings();
732 EVP_cleanup();
733 }
734 }
735
736
737 static int tls_engine_init(struct tls_connection *conn, const char *engine_id,
738 const char *pin, const char *key_id,
739 const char *cert_id, const char *ca_cert_id)
740 {
741 #ifndef OPENSSL_NO_ENGINE
742 int ret = -1;
743 if (engine_id == NULL) {
744 wpa_printf(MSG_ERROR, "ENGINE: Engine ID not set");
745 return -1;
746 }
747 if (pin == NULL) {
748 wpa_printf(MSG_ERROR, "ENGINE: Smartcard PIN not set");
749 return -1;
750 }
751 if (key_id == NULL) {
752 wpa_printf(MSG_ERROR, "ENGINE: Key Id not set");
753 return -1;
754 }
755
756 ERR_clear_error();
757 conn->engine = ENGINE_by_id(engine_id);
758 if (!conn->engine) {
759 wpa_printf(MSG_ERROR, "ENGINE: engine %s not available [%s]",
760 engine_id, ERR_error_string(ERR_get_error(), NULL));
761 goto err;
762 }
763 if (ENGINE_init(conn->engine) != 1) {
764 wpa_printf(MSG_ERROR, "ENGINE: engine init failed "
765 "(engine: %s) [%s]", engine_id,
766 ERR_error_string(ERR_get_error(), NULL));
767 goto err;
768 }
769 wpa_printf(MSG_DEBUG, "ENGINE: engine initialized");
770
771 if (ENGINE_ctrl_cmd_string(conn->engine, "PIN", pin, 0) == 0) {
772 wpa_printf(MSG_ERROR, "ENGINE: cannot set pin [%s]",
773 ERR_error_string(ERR_get_error(), NULL));
774 goto err;
775 }
776 /* load private key first in-case PIN is required for cert */
777 conn->private_key = ENGINE_load_private_key(conn->engine,
778 key_id, NULL, NULL);
779 if (!conn->private_key) {
780 wpa_printf(MSG_ERROR, "ENGINE: cannot load private key with id"
781 " '%s' [%s]", key_id,
782 ERR_error_string(ERR_get_error(), NULL));
783 ret = TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
784 goto err;
785 }
786
787 /* handle a certificate and/or CA certificate */
788 if (cert_id || ca_cert_id) {
789 const char *cmd_name = "LOAD_CERT_CTRL";
790
791 /* test if the engine supports a LOAD_CERT_CTRL */
792 if (!ENGINE_ctrl(conn->engine, ENGINE_CTRL_GET_CMD_FROM_NAME,
793 0, (void *)cmd_name, NULL)) {
794 wpa_printf(MSG_ERROR, "ENGINE: engine does not support"
795 " loading certificates");
796 ret = TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
797 goto err;
798 }
799 }
800
801 return 0;
802
803 err:
804 if (conn->engine) {
805 ENGINE_free(conn->engine);
806 conn->engine = NULL;
807 }
808
809 if (conn->private_key) {
810 EVP_PKEY_free(conn->private_key);
811 conn->private_key = NULL;
812 }
813
814 return ret;
815 #else /* OPENSSL_NO_ENGINE */
816 return 0;
817 #endif /* OPENSSL_NO_ENGINE */
818 }
819
820
821 static void tls_engine_deinit(struct tls_connection *conn)
822 {
823 #ifndef OPENSSL_NO_ENGINE
824 wpa_printf(MSG_DEBUG, "ENGINE: engine deinit");
825 if (conn->private_key) {
826 EVP_PKEY_free(conn->private_key);
827 conn->private_key = NULL;
828 }
829 if (conn->engine) {
830 ENGINE_finish(conn->engine);
831 conn->engine = NULL;
832 }
833 #endif /* OPENSSL_NO_ENGINE */
834 }
835
836
837 int tls_get_errors(void *ssl_ctx)
838 {
839 int count = 0;
840 unsigned long err;
841
842 while ((err = ERR_get_error())) {
843 wpa_printf(MSG_INFO, "TLS - SSL error: %s",
844 ERR_error_string(err, NULL));
845 count++;
846 }
847
848 return count;
849 }
850
851 struct tls_connection * tls_connection_init(void *ssl_ctx)
852 {
853 SSL_CTX *ssl = ssl_ctx;
854 struct tls_connection *conn;
855 long options;
856
857 conn = os_zalloc(sizeof(*conn));
858 if (conn == NULL)
859 return NULL;
860 conn->ssl = SSL_new(ssl);
861 if (conn->ssl == NULL) {
862 tls_show_errors(MSG_INFO, __func__,
863 "Failed to initialize new SSL connection");
864 os_free(conn);
865 return NULL;
866 }
867
868 SSL_set_app_data(conn->ssl, conn);
869 options = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
870 SSL_OP_SINGLE_DH_USE;
871 #ifdef SSL_OP_NO_COMPRESSION
872 options |= SSL_OP_NO_COMPRESSION;
873 #endif /* SSL_OP_NO_COMPRESSION */
874 SSL_set_options(conn->ssl, options);
875
876 conn->ssl_in = BIO_new(BIO_s_mem());
877 if (!conn->ssl_in) {
878 tls_show_errors(MSG_INFO, __func__,
879 "Failed to create a new BIO for ssl_in");
880 SSL_free(conn->ssl);
881 os_free(conn);
882 return NULL;
883 }
884
885 conn->ssl_out = BIO_new(BIO_s_mem());
886 if (!conn->ssl_out) {
887 tls_show_errors(MSG_INFO, __func__,
888 "Failed to create a new BIO for ssl_out");
889 SSL_free(conn->ssl);
890 BIO_free(conn->ssl_in);
891 os_free(conn);
892 return NULL;
893 }
894
895 SSL_set_bio(conn->ssl, conn->ssl_in, conn->ssl_out);
896
897 return conn;
898 }
899
900
901 void tls_connection_deinit(void *ssl_ctx, struct tls_connection *conn)
902 {
903 if (conn == NULL)
904 return;
905 SSL_free(conn->ssl);
906 tls_engine_deinit(conn);
907 os_free(conn->subject_match);
908 os_free(conn->altsubject_match);
909 os_free(conn->session_ticket);
910 os_free(conn);
911 }
912
913
914 int tls_connection_established(void *ssl_ctx, struct tls_connection *conn)
915 {
916 return conn ? SSL_is_init_finished(conn->ssl) : 0;
917 }
918
919
920 int tls_connection_shutdown(void *ssl_ctx, struct tls_connection *conn)
921 {
922 if (conn == NULL)
923 return -1;
924
925 /* Shutdown previous TLS connection without notifying the peer
926 * because the connection was already terminated in practice
927 * and "close notify" shutdown alert would confuse AS. */
928 SSL_set_quiet_shutdown(conn->ssl, 1);
929 SSL_shutdown(conn->ssl);
930 return 0;
931 }
932
933
934 static int tls_match_altsubject_component(X509 *cert, int type,
935 const char *value, size_t len)
936 {
937 GENERAL_NAME *gen;
938 void *ext;
939 int i, found = 0;
940
941 ext = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
942
943 for (i = 0; ext && i < sk_GENERAL_NAME_num(ext); i++) {
944 gen = sk_GENERAL_NAME_value(ext, i);
945 if (gen->type != type)
946 continue;
947 if (os_strlen((char *) gen->d.ia5->data) == len &&
948 os_memcmp(value, gen->d.ia5->data, len) == 0)
949 found++;
950 }
951
952 return found;
953 }
954
955
956 static int tls_match_altsubject(X509 *cert, const char *match)
957 {
958 int type;
959 const char *pos, *end;
960 size_t len;
961
962 pos = match;
963 do {
964 if (os_strncmp(pos, "EMAIL:", 6) == 0) {
965 type = GEN_EMAIL;
966 pos += 6;
967 } else if (os_strncmp(pos, "DNS:", 4) == 0) {
968 type = GEN_DNS;
969 pos += 4;
970 } else if (os_strncmp(pos, "URI:", 4) == 0) {
971 type = GEN_URI;
972 pos += 4;
973 } else {
974 wpa_printf(MSG_INFO, "TLS: Invalid altSubjectName "
975 "match '%s'", pos);
976 return 0;
977 }
978 end = os_strchr(pos, ';');
979 while (end) {
980 if (os_strncmp(end + 1, "EMAIL:", 6) == 0 ||
981 os_strncmp(end + 1, "DNS:", 4) == 0 ||
982 os_strncmp(end + 1, "URI:", 4) == 0)
983 break;
984 end = os_strchr(end + 1, ';');
985 }
986 if (end)
987 len = end - pos;
988 else
989 len = os_strlen(pos);
990 if (tls_match_altsubject_component(cert, type, pos, len) > 0)
991 return 1;
992 pos = end + 1;
993 } while (end);
994
995 return 0;
996 }
997
998
999 static int tls_verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
1000 {
1001 char buf[256];
1002 X509 *err_cert;
1003 int err, depth;
1004 SSL *ssl;
1005 struct tls_connection *conn;
1006 char *match, *altmatch;
1007
1008 err_cert = X509_STORE_CTX_get_current_cert(x509_ctx);
1009 err = X509_STORE_CTX_get_error(x509_ctx);
1010 depth = X509_STORE_CTX_get_error_depth(x509_ctx);
1011 ssl = X509_STORE_CTX_get_ex_data(x509_ctx,
1012 SSL_get_ex_data_X509_STORE_CTX_idx());
1013 X509_NAME_oneline(X509_get_subject_name(err_cert), buf, sizeof(buf));
1014
1015 conn = SSL_get_app_data(ssl);
1016 match = conn ? conn->subject_match : NULL;
1017 altmatch = conn ? conn->altsubject_match : NULL;
1018
1019 if (!preverify_ok) {
1020 wpa_printf(MSG_WARNING, "TLS: Certificate verification failed,"
1021 " error %d (%s) depth %d for '%s'", err,
1022 X509_verify_cert_error_string(err), depth, buf);
1023 } else {
1024 wpa_printf(MSG_DEBUG, "TLS: tls_verify_cb - "
1025 "preverify_ok=%d err=%d (%s) depth=%d buf='%s'",
1026 preverify_ok, err,
1027 X509_verify_cert_error_string(err), depth, buf);
1028 if (depth == 0 && match && os_strstr(buf, match) == NULL) {
1029 wpa_printf(MSG_WARNING, "TLS: Subject '%s' did not "
1030 "match with '%s'", buf, match);
1031 preverify_ok = 0;
1032 } else if (depth == 0 && altmatch &&
1033 !tls_match_altsubject(err_cert, altmatch)) {
1034 wpa_printf(MSG_WARNING, "TLS: altSubjectName match "
1035 "'%s' not found", altmatch);
1036 preverify_ok = 0;
1037 }
1038 }
1039
1040 return preverify_ok;
1041 }
1042
1043
1044 #ifndef OPENSSL_NO_STDIO
1045 static int tls_load_ca_der(void *_ssl_ctx, const char *ca_cert)
1046 {
1047 SSL_CTX *ssl_ctx = _ssl_ctx;
1048 X509_LOOKUP *lookup;
1049 int ret = 0;
1050
1051 lookup = X509_STORE_add_lookup(ssl_ctx->cert_store,
1052 X509_LOOKUP_file());
1053 if (lookup == NULL) {
1054 tls_show_errors(MSG_WARNING, __func__,
1055 "Failed add lookup for X509 store");
1056 return -1;
1057 }
1058
1059 if (!X509_LOOKUP_load_file(lookup, ca_cert, X509_FILETYPE_ASN1)) {
1060 unsigned long err = ERR_peek_error();
1061 tls_show_errors(MSG_WARNING, __func__,
1062 "Failed load CA in DER format");
1063 if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
1064 ERR_GET_REASON(err) == X509_R_CERT_ALREADY_IN_HASH_TABLE) {
1065 wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring "
1066 "cert already in hash table error",
1067 __func__);
1068 } else
1069 ret = -1;
1070 }
1071
1072 return ret;
1073 }
1074 #endif /* OPENSSL_NO_STDIO */
1075
1076
1077 static int tls_connection_ca_cert(void *_ssl_ctx, struct tls_connection *conn,
1078 const char *ca_cert, const u8 *ca_cert_blob,
1079 size_t ca_cert_blob_len, const char *ca_path)
1080 {
1081 SSL_CTX *ssl_ctx = _ssl_ctx;
1082
1083 /*
1084 * Remove previously configured trusted CA certificates before adding
1085 * new ones.
1086 */
1087 X509_STORE_free(ssl_ctx->cert_store);
1088 ssl_ctx->cert_store = X509_STORE_new();
1089 if (ssl_ctx->cert_store == NULL) {
1090 wpa_printf(MSG_DEBUG, "OpenSSL: %s - failed to allocate new "
1091 "certificate store", __func__);
1092 return -1;
1093 }
1094
1095 if (ca_cert_blob) {
1096 X509 *cert = d2i_X509(NULL, (OPENSSL_d2i_TYPE) &ca_cert_blob,
1097 ca_cert_blob_len);
1098 if (cert == NULL) {
1099 tls_show_errors(MSG_WARNING, __func__,
1100 "Failed to parse ca_cert_blob");
1101 return -1;
1102 }
1103
1104 if (!X509_STORE_add_cert(ssl_ctx->cert_store, cert)) {
1105 unsigned long err = ERR_peek_error();
1106 tls_show_errors(MSG_WARNING, __func__,
1107 "Failed to add ca_cert_blob to "
1108 "certificate store");
1109 if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
1110 ERR_GET_REASON(err) ==
1111 X509_R_CERT_ALREADY_IN_HASH_TABLE) {
1112 wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring "
1113 "cert already in hash table error",
1114 __func__);
1115 } else {
1116 X509_free(cert);
1117 return -1;
1118 }
1119 }
1120 X509_free(cert);
1121 wpa_printf(MSG_DEBUG, "OpenSSL: %s - added ca_cert_blob "
1122 "to certificate store", __func__);
1123 SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
1124 return 0;
1125 }
1126
1127 #ifdef CONFIG_NATIVE_WINDOWS
1128 if (ca_cert && tls_cryptoapi_ca_cert(ssl_ctx, conn->ssl, ca_cert) ==
1129 0) {
1130 wpa_printf(MSG_DEBUG, "OpenSSL: Added CA certificates from "
1131 "system certificate store");
1132 SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
1133 return 0;
1134 }
1135 #endif /* CONFIG_NATIVE_WINDOWS */
1136
1137 if (ca_cert || ca_path) {
1138 #ifndef OPENSSL_NO_STDIO
1139 if (SSL_CTX_load_verify_locations(ssl_ctx, ca_cert, ca_path) !=
1140 1) {
1141 tls_show_errors(MSG_WARNING, __func__,
1142 "Failed to load root certificates");
1143 if (ca_cert &&
1144 tls_load_ca_der(ssl_ctx, ca_cert) == 0) {
1145 wpa_printf(MSG_DEBUG, "OpenSSL: %s - loaded "
1146 "DER format CA certificate",
1147 __func__);
1148 } else
1149 return -1;
1150 } else {
1151 wpa_printf(MSG_DEBUG, "TLS: Trusted root "
1152 "certificate(s) loaded");
1153 tls_get_errors(ssl_ctx);
1154 }
1155 SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
1156 #else /* OPENSSL_NO_STDIO */
1157 wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO",
1158 __func__);
1159 return -1;
1160 #endif /* OPENSSL_NO_STDIO */
1161 } else {
1162 /* No ca_cert configured - do not try to verify server
1163 * certificate */
1164 SSL_set_verify(conn->ssl, SSL_VERIFY_NONE, NULL);
1165 }
1166
1167 return 0;
1168 }
1169
1170
1171 static int tls_global_ca_cert(SSL_CTX *ssl_ctx, const char *ca_cert)
1172 {
1173 if (ca_cert) {
1174 if (SSL_CTX_load_verify_locations(ssl_ctx, ca_cert, NULL) != 1)
1175 {
1176 tls_show_errors(MSG_WARNING, __func__,
1177 "Failed to load root certificates");
1178 return -1;
1179 }
1180
1181 wpa_printf(MSG_DEBUG, "TLS: Trusted root "
1182 "certificate(s) loaded");
1183
1184 #ifndef OPENSSL_NO_STDIO
1185 /* Add the same CAs to the client certificate requests */
1186 SSL_CTX_set_client_CA_list(ssl_ctx,
1187 SSL_load_client_CA_file(ca_cert));
1188 #endif /* OPENSSL_NO_STDIO */
1189 }
1190
1191 return 0;
1192 }
1193
1194
1195 int tls_global_set_verify(void *ssl_ctx, int check_crl)
1196 {
1197 int flags;
1198
1199 if (check_crl) {
1200 X509_STORE *cs = SSL_CTX_get_cert_store(ssl_ctx);
1201 if (cs == NULL) {
1202 tls_show_errors(MSG_INFO, __func__, "Failed to get "
1203 "certificate store when enabling "
1204 "check_crl");
1205 return -1;
1206 }
1207 flags = X509_V_FLAG_CRL_CHECK;
1208 if (check_crl == 2)
1209 flags |= X509_V_FLAG_CRL_CHECK_ALL;
1210 X509_STORE_set_flags(cs, flags);
1211 }
1212 return 0;
1213 }
1214
1215
1216 static int tls_connection_set_subject_match(struct tls_connection *conn,
1217 const char *subject_match,
1218 const char *altsubject_match)
1219 {
1220 os_free(conn->subject_match);
1221 conn->subject_match = NULL;
1222 if (subject_match) {
1223 conn->subject_match = os_strdup(subject_match);
1224 if (conn->subject_match == NULL)
1225 return -1;
1226 }
1227
1228 os_free(conn->altsubject_match);
1229 conn->altsubject_match = NULL;
1230 if (altsubject_match) {
1231 conn->altsubject_match = os_strdup(altsubject_match);
1232 if (conn->altsubject_match == NULL)
1233 return -1;
1234 }
1235
1236 return 0;
1237 }
1238
1239
1240 int tls_connection_set_verify(void *ssl_ctx, struct tls_connection *conn,
1241 int verify_peer)
1242 {
1243 static int counter = 0;
1244
1245 if (conn == NULL)
1246 return -1;
1247
1248 if (verify_peer) {
1249 SSL_set_verify(conn->ssl, SSL_VERIFY_PEER |
1250 SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1251 SSL_VERIFY_CLIENT_ONCE, tls_verify_cb);
1252 } else {
1253 SSL_set_verify(conn->ssl, SSL_VERIFY_NONE, NULL);
1254 }
1255
1256 SSL_set_accept_state(conn->ssl);
1257
1258 /*
1259 * Set session id context in order to avoid fatal errors when client
1260 * tries to resume a session. However, set the context to a unique
1261 * value in order to effectively disable session resumption for now
1262 * since not all areas of the server code are ready for it (e.g.,
1263 * EAP-TTLS needs special handling for Phase 2 after abbreviated TLS
1264 * handshake).
1265 */
1266 counter++;
1267 SSL_set_session_id_context(conn->ssl,
1268 (const unsigned char *) &counter,
1269 sizeof(counter));
1270
1271 return 0;
1272 }
1273
1274
1275 static int tls_connection_client_cert(struct tls_connection *conn,
1276 const char *client_cert,
1277 const u8 *client_cert_blob,
1278 size_t client_cert_blob_len)
1279 {
1280 if (client_cert == NULL && client_cert_blob == NULL)
1281 return 0;
1282
1283 if (client_cert_blob &&
1284 SSL_use_certificate_ASN1(conn->ssl, (u8 *) client_cert_blob,
1285 client_cert_blob_len) == 1) {
1286 wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_ASN1 --> "
1287 "OK");
1288 return 0;
1289 } else if (client_cert_blob) {
1290 tls_show_errors(MSG_DEBUG, __func__,
1291 "SSL_use_certificate_ASN1 failed");
1292 }
1293
1294 if (client_cert == NULL)
1295 return -1;
1296
1297 #ifndef OPENSSL_NO_STDIO
1298 if (SSL_use_certificate_file(conn->ssl, client_cert,
1299 SSL_FILETYPE_ASN1) == 1) {
1300 wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_file (DER)"
1301 " --> OK");
1302 return 0;
1303 } else {
1304 tls_show_errors(MSG_DEBUG, __func__,
1305 "SSL_use_certificate_file (DER) failed");
1306 }
1307
1308 if (SSL_use_certificate_file(conn->ssl, client_cert,
1309 SSL_FILETYPE_PEM) == 1) {
1310 wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_file (PEM)"
1311 " --> OK");
1312 return 0;
1313 } else {
1314 tls_show_errors(MSG_DEBUG, __func__,
1315 "SSL_use_certificate_file (PEM) failed");
1316 }
1317 #else /* OPENSSL_NO_STDIO */
1318 wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO", __func__);
1319 #endif /* OPENSSL_NO_STDIO */
1320
1321 return -1;
1322 }
1323
1324
1325 static int tls_global_client_cert(SSL_CTX *ssl_ctx, const char *client_cert)
1326 {
1327 #ifndef OPENSSL_NO_STDIO
1328 if (client_cert == NULL)
1329 return 0;
1330
1331 if (SSL_CTX_use_certificate_file(ssl_ctx, client_cert,
1332 SSL_FILETYPE_ASN1) != 1 &&
1333 SSL_CTX_use_certificate_file(ssl_ctx, client_cert,
1334 SSL_FILETYPE_PEM) != 1) {
1335 tls_show_errors(MSG_INFO, __func__,
1336 "Failed to load client certificate");
1337 return -1;
1338 }
1339 return 0;
1340 #else /* OPENSSL_NO_STDIO */
1341 if (client_cert == NULL)
1342 return 0;
1343 wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO", __func__);
1344 return -1;
1345 #endif /* OPENSSL_NO_STDIO */
1346 }
1347
1348
1349 static int tls_passwd_cb(char *buf, int size, int rwflag, void *password)
1350 {
1351 if (password == NULL) {
1352 return 0;
1353 }
1354 os_strlcpy(buf, (char *) password, size);
1355 return os_strlen(buf);
1356 }
1357
1358
1359 #ifdef PKCS12_FUNCS
1360 static int tls_parse_pkcs12(SSL_CTX *ssl_ctx, SSL *ssl, PKCS12 *p12,
1361 const char *passwd)
1362 {
1363 EVP_PKEY *pkey;
1364 X509 *cert;
1365 STACK_OF(X509) *certs;
1366 int res = 0;
1367 char buf[256];
1368
1369 pkey = NULL;
1370 cert = NULL;
1371 certs = NULL;
1372 if (!PKCS12_parse(p12, passwd, &pkey, &cert, &certs)) {
1373 tls_show_errors(MSG_DEBUG, __func__,
1374 "Failed to parse PKCS12 file");
1375 PKCS12_free(p12);
1376 return -1;
1377 }
1378 wpa_printf(MSG_DEBUG, "TLS: Successfully parsed PKCS12 data");
1379
1380 if (cert) {
1381 X509_NAME_oneline(X509_get_subject_name(cert), buf,
1382 sizeof(buf));
1383 wpa_printf(MSG_DEBUG, "TLS: Got certificate from PKCS12: "
1384 "subject='%s'", buf);
1385 if (ssl) {
1386 if (SSL_use_certificate(ssl, cert) != 1)
1387 res = -1;
1388 } else {
1389 if (SSL_CTX_use_certificate(ssl_ctx, cert) != 1)
1390 res = -1;
1391 }
1392 X509_free(cert);
1393 }
1394
1395 if (pkey) {
1396 wpa_printf(MSG_DEBUG, "TLS: Got private key from PKCS12");
1397 if (ssl) {
1398 if (SSL_use_PrivateKey(ssl, pkey) != 1)
1399 res = -1;
1400 } else {
1401 if (SSL_CTX_use_PrivateKey(ssl_ctx, pkey) != 1)
1402 res = -1;
1403 }
1404 EVP_PKEY_free(pkey);
1405 }
1406
1407 if (certs) {
1408 while ((cert = sk_X509_pop(certs)) != NULL) {
1409 X509_NAME_oneline(X509_get_subject_name(cert), buf,
1410 sizeof(buf));
1411 wpa_printf(MSG_DEBUG, "TLS: additional certificate"
1412 " from PKCS12: subject='%s'", buf);
1413 /*
1414 * There is no SSL equivalent for the chain cert - so
1415 * always add it to the context...
1416 */
1417 if (SSL_CTX_add_extra_chain_cert(ssl_ctx, cert) != 1) {
1418 res = -1;
1419 break;
1420 }
1421 }
1422 sk_X509_free(certs);
1423 }
1424
1425 PKCS12_free(p12);
1426
1427 if (res < 0)
1428 tls_get_errors(ssl_ctx);
1429
1430 return res;
1431 }
1432 #endif /* PKCS12_FUNCS */
1433
1434
1435 static int tls_read_pkcs12(SSL_CTX *ssl_ctx, SSL *ssl, const char *private_key,
1436 const char *passwd)
1437 {
1438 #ifdef PKCS12_FUNCS
1439 FILE *f;
1440 PKCS12 *p12;
1441
1442 f = fopen(private_key, "rb");
1443 if (f == NULL)
1444 return -1;
1445
1446 p12 = d2i_PKCS12_fp(f, NULL);
1447 fclose(f);
1448
1449 if (p12 == NULL) {
1450 tls_show_errors(MSG_INFO, __func__,
1451 "Failed to use PKCS#12 file");
1452 return -1;
1453 }
1454
1455 return tls_parse_pkcs12(ssl_ctx, ssl, p12, passwd);
1456
1457 #else /* PKCS12_FUNCS */
1458 wpa_printf(MSG_INFO, "TLS: PKCS12 support disabled - cannot read "
1459 "p12/pfx files");
1460 return -1;
1461 #endif /* PKCS12_FUNCS */
1462 }
1463
1464
1465 static int tls_read_pkcs12_blob(SSL_CTX *ssl_ctx, SSL *ssl,
1466 const u8 *blob, size_t len, const char *passwd)
1467 {
1468 #ifdef PKCS12_FUNCS
1469 PKCS12 *p12;
1470
1471 p12 = d2i_PKCS12(NULL, (OPENSSL_d2i_TYPE) &blob, len);
1472 if (p12 == NULL) {
1473 tls_show_errors(MSG_INFO, __func__,
1474 "Failed to use PKCS#12 blob");
1475 return -1;
1476 }
1477
1478 return tls_parse_pkcs12(ssl_ctx, ssl, p12, passwd);
1479
1480 #else /* PKCS12_FUNCS */
1481 wpa_printf(MSG_INFO, "TLS: PKCS12 support disabled - cannot parse "
1482 "p12/pfx blobs");
1483 return -1;
1484 #endif /* PKCS12_FUNCS */
1485 }
1486
1487
1488 #ifndef OPENSSL_NO_ENGINE
1489 static int tls_engine_get_cert(struct tls_connection *conn,
1490 const char *cert_id,
1491 X509 **cert)
1492 {
1493 /* this runs after the private key is loaded so no PIN is required */
1494 struct {
1495 const char *cert_id;
1496 X509 *cert;
1497 } params;
1498 params.cert_id = cert_id;
1499 params.cert = NULL;
1500
1501 if (!ENGINE_ctrl_cmd(conn->engine, "LOAD_CERT_CTRL",
1502 0, &params, NULL, 1)) {
1503 wpa_printf(MSG_ERROR, "ENGINE: cannot load client cert with id"
1504 " '%s' [%s]", cert_id,
1505 ERR_error_string(ERR_get_error(), NULL));
1506 return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
1507 }
1508 if (!params.cert) {
1509 wpa_printf(MSG_ERROR, "ENGINE: did not properly cert with id"
1510 " '%s'", cert_id);
1511 return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
1512 }
1513 *cert = params.cert;
1514 return 0;
1515 }
1516 #endif /* OPENSSL_NO_ENGINE */
1517
1518
1519 static int tls_connection_engine_client_cert(struct tls_connection *conn,
1520 const char *cert_id)
1521 {
1522 #ifndef OPENSSL_NO_ENGINE
1523 X509 *cert;
1524
1525 if (tls_engine_get_cert(conn, cert_id, &cert))
1526 return -1;
1527
1528 if (!SSL_use_certificate(conn->ssl, cert)) {
1529 tls_show_errors(MSG_ERROR, __func__,
1530 "SSL_use_certificate failed");
1531 X509_free(cert);
1532 return -1;
1533 }
1534 X509_free(cert);
1535 wpa_printf(MSG_DEBUG, "ENGINE: SSL_use_certificate --> "
1536 "OK");
1537 return 0;
1538
1539 #else /* OPENSSL_NO_ENGINE */
1540 return -1;
1541 #endif /* OPENSSL_NO_ENGINE */
1542 }
1543
1544
1545 static int tls_connection_engine_ca_cert(void *_ssl_ctx,
1546 struct tls_connection *conn,
1547 const char *ca_cert_id)
1548 {
1549 #ifndef OPENSSL_NO_ENGINE
1550 X509 *cert;
1551 SSL_CTX *ssl_ctx = _ssl_ctx;
1552
1553 if (tls_engine_get_cert(conn, ca_cert_id, &cert))
1554 return -1;
1555
1556 /* start off the same as tls_connection_ca_cert */
1557 X509_STORE_free(ssl_ctx->cert_store);
1558 ssl_ctx->cert_store = X509_STORE_new();
1559 if (ssl_ctx->cert_store == NULL) {
1560 wpa_printf(MSG_DEBUG, "OpenSSL: %s - failed to allocate new "
1561 "certificate store", __func__);
1562 X509_free(cert);
1563 return -1;
1564 }
1565 if (!X509_STORE_add_cert(ssl_ctx->cert_store, cert)) {
1566 unsigned long err = ERR_peek_error();
1567 tls_show_errors(MSG_WARNING, __func__,
1568 "Failed to add CA certificate from engine "
1569 "to certificate store");
1570 if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
1571 ERR_GET_REASON(err) == X509_R_CERT_ALREADY_IN_HASH_TABLE) {
1572 wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring cert"
1573 " already in hash table error",
1574 __func__);
1575 } else {
1576 X509_free(cert);
1577 return -1;
1578 }
1579 }
1580 X509_free(cert);
1581 wpa_printf(MSG_DEBUG, "OpenSSL: %s - added CA certificate from engine "
1582 "to certificate store", __func__);
1583 SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
1584 return 0;
1585
1586 #else /* OPENSSL_NO_ENGINE */
1587 return -1;
1588 #endif /* OPENSSL_NO_ENGINE */
1589 }
1590
1591
1592 static int tls_connection_engine_private_key(struct tls_connection *conn)
1593 {
1594 #ifndef OPENSSL_NO_ENGINE
1595 if (SSL_use_PrivateKey(conn->ssl, conn->private_key) != 1) {
1596 tls_show_errors(MSG_ERROR, __func__,
1597 "ENGINE: cannot use private key for TLS");
1598 return -1;
1599 }
1600 if (!SSL_check_private_key(conn->ssl)) {
1601 tls_show_errors(MSG_INFO, __func__,
1602 "Private key failed verification");
1603 return -1;
1604 }
1605 return 0;
1606 #else /* OPENSSL_NO_ENGINE */
1607 wpa_printf(MSG_ERROR, "SSL: Configuration uses engine, but "
1608 "engine support was not compiled in");
1609 return -1;
1610 #endif /* OPENSSL_NO_ENGINE */
1611 }
1612
1613
1614 static int tls_connection_private_key(void *_ssl_ctx,
1615 struct tls_connection *conn,
1616 const char *private_key,
1617 const char *private_key_passwd,
1618 const u8 *private_key_blob,
1619 size_t private_key_blob_len)
1620 {
1621 SSL_CTX *ssl_ctx = _ssl_ctx;
1622 char *passwd;
1623 int ok;
1624
1625 if (private_key == NULL && private_key_blob == NULL)
1626 return 0;
1627
1628 if (private_key_passwd) {
1629 passwd = os_strdup(private_key_passwd);
1630 if (passwd == NULL)
1631 return -1;
1632 } else
1633 passwd = NULL;
1634
1635 SSL_CTX_set_default_passwd_cb(ssl_ctx, tls_passwd_cb);
1636 SSL_CTX_set_default_passwd_cb_userdata(ssl_ctx, passwd);
1637
1638 ok = 0;
1639 while (private_key_blob) {
1640 if (SSL_use_PrivateKey_ASN1(EVP_PKEY_RSA, conn->ssl,
1641 (u8 *) private_key_blob,
1642 private_key_blob_len) == 1) {
1643 wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_PrivateKey_"
1644 "ASN1(EVP_PKEY_RSA) --> OK");
1645 ok = 1;
1646 break;
1647 } else {
1648 tls_show_errors(MSG_DEBUG, __func__,
1649 "SSL_use_PrivateKey_ASN1(EVP_PKEY_RSA)"
1650 " failed");
1651 }
1652
1653 if (SSL_use_PrivateKey_ASN1(EVP_PKEY_DSA, conn->ssl,
1654 (u8 *) private_key_blob,
1655 private_key_blob_len) == 1) {
1656 wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_PrivateKey_"
1657 "ASN1(EVP_PKEY_DSA) --> OK");
1658 ok = 1;
1659 break;
1660 } else {
1661 tls_show_errors(MSG_DEBUG, __func__,
1662 "SSL_use_PrivateKey_ASN1(EVP_PKEY_DSA)"
1663 " failed");
1664 }
1665
1666 if (SSL_use_RSAPrivateKey_ASN1(conn->ssl,
1667 (u8 *) private_key_blob,
1668 private_key_blob_len) == 1) {
1669 wpa_printf(MSG_DEBUG, "OpenSSL: "
1670 "SSL_use_RSAPrivateKey_ASN1 --> OK");
1671 ok = 1;
1672 break;
1673 } else {
1674 tls_show_errors(MSG_DEBUG, __func__,
1675 "SSL_use_RSAPrivateKey_ASN1 failed");
1676 }
1677
1678 if (tls_read_pkcs12_blob(ssl_ctx, conn->ssl, private_key_blob,
1679 private_key_blob_len, passwd) == 0) {
1680 wpa_printf(MSG_DEBUG, "OpenSSL: PKCS#12 as blob --> "
1681 "OK");
1682 ok = 1;
1683 break;
1684 }
1685
1686 break;
1687 }
1688
1689 while (!ok && private_key) {
1690 #ifndef OPENSSL_NO_STDIO
1691 if (SSL_use_PrivateKey_file(conn->ssl, private_key,
1692 SSL_FILETYPE_ASN1) == 1) {
1693 wpa_printf(MSG_DEBUG, "OpenSSL: "
1694 "SSL_use_PrivateKey_File (DER) --> OK");
1695 ok = 1;
1696 break;
1697 } else {
1698 tls_show_errors(MSG_DEBUG, __func__,
1699 "SSL_use_PrivateKey_File (DER) "
1700 "failed");
1701 }
1702
1703 if (SSL_use_PrivateKey_file(conn->ssl, private_key,
1704 SSL_FILETYPE_PEM) == 1) {
1705 wpa_printf(MSG_DEBUG, "OpenSSL: "
1706 "SSL_use_PrivateKey_File (PEM) --> OK");
1707 ok = 1;
1708 break;
1709 } else {
1710 tls_show_errors(MSG_DEBUG, __func__,
1711 "SSL_use_PrivateKey_File (PEM) "
1712 "failed");
1713 }
1714 #else /* OPENSSL_NO_STDIO */
1715 wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO",
1716 __func__);
1717 #endif /* OPENSSL_NO_STDIO */
1718
1719 if (tls_read_pkcs12(ssl_ctx, conn->ssl, private_key, passwd)
1720 == 0) {
1721 wpa_printf(MSG_DEBUG, "OpenSSL: Reading PKCS#12 file "
1722 "--> OK");
1723 ok = 1;
1724 break;
1725 }
1726
1727 if (tls_cryptoapi_cert(conn->ssl, private_key) == 0) {
1728 wpa_printf(MSG_DEBUG, "OpenSSL: Using CryptoAPI to "
1729 "access certificate store --> OK");
1730 ok = 1;
1731 break;
1732 }
1733
1734 break;
1735 }
1736
1737 if (!ok) {
1738 wpa_printf(MSG_INFO, "OpenSSL: Failed to load private key");
1739 os_free(passwd);
1740 ERR_clear_error();
1741 return -1;
1742 }
1743 ERR_clear_error();
1744 SSL_CTX_set_default_passwd_cb(ssl_ctx, NULL);
1745 os_free(passwd);
1746
1747 if (!SSL_check_private_key(conn->ssl)) {
1748 tls_show_errors(MSG_INFO, __func__, "Private key failed "
1749 "verification");
1750 return -1;
1751 }
1752
1753 wpa_printf(MSG_DEBUG, "SSL: Private key loaded successfully");
1754 return 0;
1755 }
1756
1757
1758 static int tls_global_private_key(SSL_CTX *ssl_ctx, const char *private_key,
1759 const char *private_key_passwd)
1760 {
1761 char *passwd;
1762
1763 if (private_key == NULL)
1764 return 0;
1765
1766 if (private_key_passwd) {
1767 passwd = os_strdup(private_key_passwd);
1768 if (passwd == NULL)
1769 return -1;
1770 } else
1771 passwd = NULL;
1772
1773 SSL_CTX_set_default_passwd_cb(ssl_ctx, tls_passwd_cb);
1774 SSL_CTX_set_default_passwd_cb_userdata(ssl_ctx, passwd);
1775 if (
1776 #ifndef OPENSSL_NO_STDIO
1777 SSL_CTX_use_PrivateKey_file(ssl_ctx, private_key,
1778 SSL_FILETYPE_ASN1) != 1 &&
1779 SSL_CTX_use_PrivateKey_file(ssl_ctx, private_key,
1780 SSL_FILETYPE_PEM) != 1 &&
1781 #endif /* OPENSSL_NO_STDIO */
1782 tls_read_pkcs12(ssl_ctx, NULL, private_key, passwd)) {
1783 tls_show_errors(MSG_INFO, __func__,
1784 "Failed to load private key");
1785 os_free(passwd);
1786 ERR_clear_error();
1787 return -1;
1788 }
1789 os_free(passwd);
1790 ERR_clear_error();
1791 SSL_CTX_set_default_passwd_cb(ssl_ctx, NULL);
1792
1793 if (!SSL_CTX_check_private_key(ssl_ctx)) {
1794 tls_show_errors(MSG_INFO, __func__,
1795 "Private key failed verification");
1796 return -1;
1797 }
1798
1799 return 0;
1800 }
1801
1802
1803 static int tls_connection_dh(struct tls_connection *conn, const char *dh_file)
1804 {
1805 #ifdef OPENSSL_NO_DH
1806 if (dh_file == NULL)
1807 return 0;
1808 wpa_printf(MSG_ERROR, "TLS: openssl does not include DH support, but "
1809 "dh_file specified");
1810 return -1;
1811 #else /* OPENSSL_NO_DH */
1812 DH *dh;
1813 BIO *bio;
1814
1815 /* TODO: add support for dh_blob */
1816 if (dh_file == NULL)
1817 return 0;
1818 if (conn == NULL)
1819 return -1;
1820
1821 bio = BIO_new_file(dh_file, "r");
1822 if (bio == NULL) {
1823 wpa_printf(MSG_INFO, "TLS: Failed to open DH file '%s': %s",
1824 dh_file, ERR_error_string(ERR_get_error(), NULL));
1825 return -1;
1826 }
1827 dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
1828 BIO_free(bio);
1829 #ifndef OPENSSL_NO_DSA
1830 while (dh == NULL) {
1831 DSA *dsa;
1832 wpa_printf(MSG_DEBUG, "TLS: Failed to parse DH file '%s': %s -"
1833 " trying to parse as DSA params", dh_file,
1834 ERR_error_string(ERR_get_error(), NULL));
1835 bio = BIO_new_file(dh_file, "r");
1836 if (bio == NULL)
1837 break;
1838 dsa = PEM_read_bio_DSAparams(bio, NULL, NULL, NULL);
1839 BIO_free(bio);
1840 if (!dsa) {
1841 wpa_printf(MSG_DEBUG, "TLS: Failed to parse DSA file "
1842 "'%s': %s", dh_file,
1843 ERR_error_string(ERR_get_error(), NULL));
1844 break;
1845 }
1846
1847 wpa_printf(MSG_DEBUG, "TLS: DH file in DSA param format");
1848 dh = DSA_dup_DH(dsa);
1849 DSA_free(dsa);
1850 if (dh == NULL) {
1851 wpa_printf(MSG_INFO, "TLS: Failed to convert DSA "
1852 "params into DH params");
1853 break;
1854 }
1855 break;
1856 }
1857 #endif /* !OPENSSL_NO_DSA */
1858 if (dh == NULL) {
1859 wpa_printf(MSG_INFO, "TLS: Failed to read/parse DH/DSA file "
1860 "'%s'", dh_file);
1861 return -1;
1862 }
1863
1864 if (SSL_set_tmp_dh(conn->ssl, dh) != 1) {
1865 wpa_printf(MSG_INFO, "TLS: Failed to set DH params from '%s': "
1866 "%s", dh_file,
1867 ERR_error_string(ERR_get_error(), NULL));
1868 DH_free(dh);
1869 return -1;
1870 }
1871 DH_free(dh);
1872 return 0;
1873 #endif /* OPENSSL_NO_DH */
1874 }
1875
1876
1877 static int tls_global_dh(SSL_CTX *ssl_ctx, const char *dh_file)
1878 {
1879 #ifdef OPENSSL_NO_DH
1880 if (dh_file == NULL)
1881 return 0;
1882 wpa_printf(MSG_ERROR, "TLS: openssl does not include DH support, but "
1883 "dh_file specified");
1884 return -1;
1885 #else /* OPENSSL_NO_DH */
1886 DH *dh;
1887 BIO *bio;
1888
1889 /* TODO: add support for dh_blob */
1890 if (dh_file == NULL)
1891 return 0;
1892 if (ssl_ctx == NULL)
1893 return -1;
1894
1895 bio = BIO_new_file(dh_file, "r");
1896 if (bio == NULL) {
1897 wpa_printf(MSG_INFO, "TLS: Failed to open DH file '%s': %s",
1898 dh_file, ERR_error_string(ERR_get_error(), NULL));
1899 return -1;
1900 }
1901 dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
1902 BIO_free(bio);
1903 #ifndef OPENSSL_NO_DSA
1904 while (dh == NULL) {
1905 DSA *dsa;
1906 wpa_printf(MSG_DEBUG, "TLS: Failed to parse DH file '%s': %s -"
1907 " trying to parse as DSA params", dh_file,
1908 ERR_error_string(ERR_get_error(), NULL));
1909 bio = BIO_new_file(dh_file, "r");
1910 if (bio == NULL)
1911 break;
1912 dsa = PEM_read_bio_DSAparams(bio, NULL, NULL, NULL);
1913 BIO_free(bio);
1914 if (!dsa) {
1915 wpa_printf(MSG_DEBUG, "TLS: Failed to parse DSA file "
1916 "'%s': %s", dh_file,
1917 ERR_error_string(ERR_get_error(), NULL));
1918 break;
1919 }
1920
1921 wpa_printf(MSG_DEBUG, "TLS: DH file in DSA param format");
1922 dh = DSA_dup_DH(dsa);
1923 DSA_free(dsa);
1924 if (dh == NULL) {
1925 wpa_printf(MSG_INFO, "TLS: Failed to convert DSA "
1926 "params into DH params");
1927 break;
1928 }
1929 break;
1930 }
1931 #endif /* !OPENSSL_NO_DSA */
1932 if (dh == NULL) {
1933 wpa_printf(MSG_INFO, "TLS: Failed to read/parse DH/DSA file "
1934 "'%s'", dh_file);
1935 return -1;
1936 }
1937
1938 if (SSL_CTX_set_tmp_dh(ssl_ctx, dh) != 1) {
1939 wpa_printf(MSG_INFO, "TLS: Failed to set DH params from '%s': "
1940 "%s", dh_file,
1941 ERR_error_string(ERR_get_error(), NULL));
1942 DH_free(dh);
1943 return -1;
1944 }
1945 DH_free(dh);
1946 return 0;
1947 #endif /* OPENSSL_NO_DH */
1948 }
1949
1950
1951 int tls_connection_get_keys(void *ssl_ctx, struct tls_connection *conn,
1952 struct tls_keys *keys)
1953 {
1954 SSL *ssl;
1955
1956 if (conn == NULL || keys == NULL)
1957 return -1;
1958 ssl = conn->ssl;
1959 if (ssl == NULL || ssl->s3 == NULL || ssl->session == NULL)
1960 return -1;
1961
1962 os_memset(keys, 0, sizeof(*keys));
1963 keys->master_key = ssl->session->master_key;
1964 keys->master_key_len = ssl->session->master_key_length;
1965 keys->client_random = ssl->s3->client_random;
1966 keys->client_random_len = SSL3_RANDOM_SIZE;
1967 keys->server_random = ssl->s3->server_random;
1968 keys->server_random_len = SSL3_RANDOM_SIZE;
1969
1970 return 0;
1971 }
1972
1973
1974 int tls_connection_prf(void *tls_ctx, struct tls_connection *conn,
1975 const char *label, int server_random_first,
1976 u8 *out, size_t out_len)
1977 {
1978 return -1;
1979 }
1980
1981
1982 u8 * tls_connection_handshake(void *ssl_ctx, struct tls_connection *conn,
1983 const u8 *in_data, size_t in_len,
1984 size_t *out_len, u8 **appl_data,
1985 size_t *appl_data_len)
1986 {
1987 int res;
1988 u8 *out_data;
1989
1990 if (appl_data)
1991 *appl_data = NULL;
1992
1993 /*
1994 * Give TLS handshake data from the server (if available) to OpenSSL
1995 * for processing.
1996 */
1997 if (in_data &&
1998 BIO_write(conn->ssl_in, in_data, in_len) < 0) {
1999 tls_show_errors(MSG_INFO, __func__,
2000 "Handshake failed - BIO_write");
2001 return NULL;
2002 }
2003
2004 /* Initiate TLS handshake or continue the existing handshake */
2005 res = SSL_connect(conn->ssl);
2006 if (res != 1) {
2007 int err = SSL_get_error(conn->ssl, res);
2008 if (err == SSL_ERROR_WANT_READ)
2009 wpa_printf(MSG_DEBUG, "SSL: SSL_connect - want "
2010 "more data");
2011 else if (err == SSL_ERROR_WANT_WRITE)
2012 wpa_printf(MSG_DEBUG, "SSL: SSL_connect - want to "
2013 "write");
2014 else {
2015 tls_show_errors(MSG_INFO, __func__, "SSL_connect");
2016 conn->failed++;
2017 }
2018 }
2019
2020 /* Get the TLS handshake data to be sent to the server */
2021 res = BIO_ctrl_pending(conn->ssl_out);
2022 wpa_printf(MSG_DEBUG, "SSL: %d bytes pending from ssl_out", res);
2023 out_data = os_malloc(res == 0 ? 1 : res);
2024 if (out_data == NULL) {
2025 wpa_printf(MSG_DEBUG, "SSL: Failed to allocate memory for "
2026 "handshake output (%d bytes)", res);
2027 if (BIO_reset(conn->ssl_out) < 0) {
2028 tls_show_errors(MSG_INFO, __func__,
2029 "BIO_reset failed");
2030 }
2031 *out_len = 0;
2032 return NULL;
2033 }
2034 res = res == 0 ? 0 : BIO_read(conn->ssl_out, out_data, res);
2035 if (res < 0) {
2036 tls_show_errors(MSG_INFO, __func__,
2037 "Handshake failed - BIO_read");
2038 if (BIO_reset(conn->ssl_out) < 0) {
2039 tls_show_errors(MSG_INFO, __func__,
2040 "BIO_reset failed");
2041 }
2042 *out_len = 0;
2043 return NULL;
2044 }
2045 *out_len = res;
2046
2047 if (SSL_is_init_finished(conn->ssl) && appl_data) {
2048 *appl_data = os_malloc(in_len);
2049 if (*appl_data) {
2050 res = SSL_read(conn->ssl, *appl_data, in_len);
2051 if (res < 0) {
2052 int err = SSL_get_error(conn->ssl, res);
2053 if (err == SSL_ERROR_WANT_READ ||
2054 err == SSL_ERROR_WANT_WRITE) {
2055 wpa_printf(MSG_DEBUG,
2056 "SSL: No Application Data "
2057 "included");
2058 } else {
2059 tls_show_errors(MSG_INFO, __func__,
2060 "Failed to read "
2061 "possible "
2062 "Application Data");
2063 }
2064 os_free(*appl_data);
2065 *appl_data = NULL;
2066 } else {
2067 *appl_data_len = res;
2068 wpa_hexdump_key(MSG_MSGDUMP, "SSL: Application"
2069 " Data in Finish message",
2070 *appl_data, *appl_data_len);
2071 }
2072 }
2073 }
2074
2075 return out_data;
2076 }
2077
2078
2079 u8 * tls_connection_server_handshake(void *ssl_ctx,
2080 struct tls_connection *conn,
2081 const u8 *in_data, size_t in_len,
2082 size_t *out_len)
2083 {
2084 int res;
2085 u8 *out_data;
2086
2087 /*
2088 * Give TLS handshake data from the client (if available) to OpenSSL
2089 * for processing.
2090 */
2091 if (in_data &&
2092 BIO_write(conn->ssl_in, in_data, in_len) < 0) {
2093 tls_show_errors(MSG_INFO, __func__,
2094 "Handshake failed - BIO_write");
2095 return NULL;
2096 }
2097
2098 /* Initiate TLS handshake or continue the existing handshake */
2099 res = SSL_accept(conn->ssl);
2100 if (res != 1) {
2101 int err = SSL_get_error(conn->ssl, res);
2102 if (err == SSL_ERROR_WANT_READ)
2103 wpa_printf(MSG_DEBUG, "SSL: SSL_accept - want "
2104 "more data");
2105 else if (err == SSL_ERROR_WANT_WRITE)
2106 wpa_printf(MSG_DEBUG, "SSL: SSL_accept - want to "
2107 "write");
2108 else {
2109 tls_show_errors(MSG_INFO, __func__, "SSL_accept");
2110 return NULL;
2111 }
2112 }
2113
2114 /* Get the TLS handshake data to be sent to the client */
2115 res = BIO_ctrl_pending(conn->ssl_out);
2116 wpa_printf(MSG_DEBUG, "SSL: %d bytes pending from ssl_out", res);
2117 out_data = os_malloc(res == 0 ? 1 : res);
2118 if (out_data == NULL) {
2119 wpa_printf(MSG_DEBUG, "SSL: Failed to allocate memory for "
2120 "handshake output (%d bytes)", res);
2121 if (BIO_reset(conn->ssl_out) < 0) {
2122 tls_show_errors(MSG_INFO, __func__,
2123 "BIO_reset failed");
2124 }
2125 *out_len = 0;
2126 return NULL;
2127 }
2128 res = res == 0 ? 0 : BIO_read(conn->ssl_out, out_data, res);
2129 if (res < 0) {
2130 tls_show_errors(MSG_INFO, __func__,
2131 "Handshake failed - BIO_read");
2132 if (BIO_reset(conn->ssl_out) < 0) {
2133 tls_show_errors(MSG_INFO, __func__,
2134 "BIO_reset failed");
2135 }
2136 *out_len = 0;
2137 return NULL;
2138 }
2139 *out_len = res;
2140 return out_data;
2141 }
2142
2143
2144 int tls_connection_encrypt(void *ssl_ctx, struct tls_connection *conn,
2145 const u8 *in_data, size_t in_len,
2146 u8 *out_data, size_t out_len)
2147 {
2148 int res;
2149
2150 if (conn == NULL)
2151 return -1;
2152
2153 /* Give plaintext data for OpenSSL to encrypt into the TLS tunnel. */
2154 if ((res = BIO_reset(conn->ssl_in)) < 0 ||
2155 (res = BIO_reset(conn->ssl_out)) < 0) {
2156 tls_show_errors(MSG_INFO, __func__, "BIO_reset failed");
2157 return res;
2158 }
2159 res = SSL_write(conn->ssl, in_data, in_len);
2160 if (res < 0) {
2161 tls_show_errors(MSG_INFO, __func__,
2162 "Encryption failed - SSL_write");
2163 return res;
2164 }
2165
2166 /* Read encrypted data to be sent to the server */
2167 res = BIO_read(conn->ssl_out, out_data, out_len);
2168 if (res < 0) {
2169 tls_show_errors(MSG_INFO, __func__,
2170 "Encryption failed - BIO_read");
2171 return res;
2172 }
2173
2174 return res;
2175 }
2176
2177
2178 int tls_connection_decrypt(void *ssl_ctx, struct tls_connection *conn,
2179 const u8 *in_data, size_t in_len,
2180 u8 *out_data, size_t out_len)
2181 {
2182 int res;
2183
2184 /* Give encrypted data from TLS tunnel for OpenSSL to decrypt. */
2185 res = BIO_write(conn->ssl_in, in_data, in_len);
2186 if (res < 0) {
2187 tls_show_errors(MSG_INFO, __func__,
2188 "Decryption failed - BIO_write");
2189 return res;
2190 }
2191 if (BIO_reset(conn->ssl_out) < 0) {
2192 tls_show_errors(MSG_INFO, __func__, "BIO_reset failed");
2193 return res;
2194 }
2195
2196 /* Read decrypted data for further processing */
2197 res = SSL_read(conn->ssl, out_data, out_len);
2198 if (res < 0) {
2199 tls_show_errors(MSG_INFO, __func__,
2200 "Decryption failed - SSL_read");
2201 return res;
2202 }
2203
2204 return res;
2205 }
2206
2207
2208 int tls_connection_resumed(void *ssl_ctx, struct tls_connection *conn)
2209 {
2210 return conn ? conn->ssl->hit : 0;
2211 }
2212
2213
2214 int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn,
2215 u8 *ciphers)
2216 {
2217 char buf[100], *pos, *end;
2218 u8 *c;
2219 int ret;
2220
2221 if (conn == NULL || conn->ssl == NULL || ciphers == NULL)
2222 return -1;
2223
2224 buf[0] = '\0';
2225 pos = buf;
2226 end = pos + sizeof(buf);
2227
2228 c = ciphers;
2229 while (*c != TLS_CIPHER_NONE) {
2230 const char *suite;
2231
2232 switch (*c) {
2233 case TLS_CIPHER_RC4_SHA:
2234 suite = "RC4-SHA";
2235 break;
2236 case TLS_CIPHER_AES128_SHA:
2237 suite = "AES128-SHA";
2238 break;
2239 case TLS_CIPHER_RSA_DHE_AES128_SHA:
2240 suite = "DHE-RSA-AES128-SHA";
2241 break;
2242 case TLS_CIPHER_ANON_DH_AES128_SHA:
2243 suite = "ADH-AES128-SHA";
2244 break;
2245 default:
2246 wpa_printf(MSG_DEBUG, "TLS: Unsupported "
2247 "cipher selection: %d", *c);
2248 return -1;
2249 }
2250 ret = os_snprintf(pos, end - pos, ":%s", suite);
2251 if (ret < 0 || ret >= end - pos)
2252 break;
2253 pos += ret;
2254
2255 c++;
2256 }
2257
2258 wpa_printf(MSG_DEBUG, "OpenSSL: cipher suites: %s", buf + 1);
2259
2260 if (SSL_set_cipher_list(conn->ssl, buf + 1) != 1) {
2261 tls_show_errors(MSG_INFO, __func__,
2262 "Cipher suite configuration failed");
2263 return -1;
2264 }
2265
2266 return 0;
2267 }
2268
2269
2270 int tls_get_cipher(void *ssl_ctx, struct tls_connection *conn,
2271 char *buf, size_t buflen)
2272 {
2273 const char *name;
2274 if (conn == NULL || conn->ssl == NULL)
2275 return -1;
2276
2277 name = SSL_get_cipher(conn->ssl);
2278 if (name == NULL)
2279 return -1;
2280
2281 os_strlcpy(buf, name, buflen);
2282 return 0;
2283 }
2284
2285
2286 int tls_connection_enable_workaround(void *ssl_ctx,
2287 struct tls_connection *conn)
2288 {
2289 SSL_set_options(conn->ssl, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
2290
2291 return 0;
2292 }
2293
2294
2295 #if defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC)
2296 /* ClientHello TLS extensions require a patch to openssl, so this function is
2297 * commented out unless explicitly needed for EAP-FAST in order to be able to
2298 * build this file with unmodified openssl. */
2299 int tls_connection_client_hello_ext(void *ssl_ctx, struct tls_connection *conn,
2300 int ext_type, const u8 *data,
2301 size_t data_len)
2302 {
2303 if (conn == NULL || conn->ssl == NULL || ext_type != 35)
2304 return -1;
2305
2306 #ifdef CONFIG_OPENSSL_TICKET_OVERRIDE
2307 if (SSL_set_session_ticket_ext(conn->ssl, (void *) data,
2308 data_len) != 1)
2309 return -1;
2310 #else /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2311 if (SSL_set_hello_extension(conn->ssl, ext_type, (void *) data,
2312 data_len) != 1)
2313 return -1;
2314 #endif /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2315
2316 return 0;
2317 }
2318 #endif /* EAP_FAST || EAP_FAST_DYNAMIC */
2319
2320
2321 int tls_connection_get_failed(void *ssl_ctx, struct tls_connection *conn)
2322 {
2323 if (conn == NULL)
2324 return -1;
2325 return conn->failed;
2326 }
2327
2328
2329 int tls_connection_get_read_alerts(void *ssl_ctx, struct tls_connection *conn)
2330 {
2331 if (conn == NULL)
2332 return -1;
2333 return conn->read_alerts;
2334 }
2335
2336
2337 int tls_connection_get_write_alerts(void *ssl_ctx, struct tls_connection *conn)
2338 {
2339 if (conn == NULL)
2340 return -1;
2341 return conn->write_alerts;
2342 }
2343
2344
2345 int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
2346 const struct tls_connection_params *params)
2347 {
2348 int ret;
2349 unsigned long err;
2350
2351 if (conn == NULL)
2352 return -1;
2353
2354 while ((err = ERR_get_error())) {
2355 wpa_printf(MSG_INFO, "%s: Clearing pending SSL error: %s",
2356 __func__, ERR_error_string(err, NULL));
2357 }
2358
2359 if (params->engine) {
2360 wpa_printf(MSG_DEBUG, "SSL: Initializing TLS engine");
2361 ret = tls_engine_init(conn, params->engine_id, params->pin,
2362 params->key_id, params->cert_id,
2363 params->ca_cert_id);
2364 if (ret)
2365 return ret;
2366 }
2367 if (tls_connection_set_subject_match(conn,
2368 params->subject_match,
2369 params->altsubject_match))
2370 return -1;
2371
2372 if (params->engine && params->ca_cert_id) {
2373 if (tls_connection_engine_ca_cert(tls_ctx, conn,
2374 params->ca_cert_id))
2375 return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
2376 } else if (tls_connection_ca_cert(tls_ctx, conn, params->ca_cert,
2377 params->ca_cert_blob,
2378 params->ca_cert_blob_len,
2379 params->ca_path))
2380 return -1;
2381
2382 if (params->engine && params->cert_id) {
2383 if (tls_connection_engine_client_cert(conn, params->cert_id))
2384 return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
2385 } else if (tls_connection_client_cert(conn, params->client_cert,
2386 params->client_cert_blob,
2387 params->client_cert_blob_len))
2388 return -1;
2389
2390 if (params->engine && params->key_id) {
2391 wpa_printf(MSG_DEBUG, "TLS: Using private key from engine");
2392 if (tls_connection_engine_private_key(conn))
2393 return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
2394 } else if (tls_connection_private_key(tls_ctx, conn,
2395 params->private_key,
2396 params->private_key_passwd,
2397 params->private_key_blob,
2398 params->private_key_blob_len)) {
2399 wpa_printf(MSG_INFO, "TLS: Failed to load private key '%s'",
2400 params->private_key);
2401 return -1;
2402 }
2403
2404 if (tls_connection_dh(conn, params->dh_file)) {
2405 wpa_printf(MSG_INFO, "TLS: Failed to load DH file '%s'",
2406 params->dh_file);
2407 return -1;
2408 }
2409
2410 tls_get_errors(tls_ctx);
2411
2412 return 0;
2413 }
2414
2415
2416 int tls_global_set_params(void *tls_ctx,
2417 const struct tls_connection_params *params)
2418 {
2419 SSL_CTX *ssl_ctx = tls_ctx;
2420 unsigned long err;
2421
2422 while ((err = ERR_get_error())) {
2423 wpa_printf(MSG_INFO, "%s: Clearing pending SSL error: %s",
2424 __func__, ERR_error_string(err, NULL));
2425 }
2426
2427 if (tls_global_ca_cert(ssl_ctx, params->ca_cert))
2428 return -1;
2429
2430 if (tls_global_client_cert(ssl_ctx, params->client_cert))
2431 return -1;
2432
2433 if (tls_global_private_key(ssl_ctx, params->private_key,
2434 params->private_key_passwd))
2435 return -1;
2436
2437 if (tls_global_dh(ssl_ctx, params->dh_file)) {
2438 wpa_printf(MSG_INFO, "TLS: Failed to load DH file '%s'",
2439 params->dh_file);
2440 return -1;
2441 }
2442
2443 return 0;
2444 }
2445
2446
2447 int tls_connection_get_keyblock_size(void *tls_ctx,
2448 struct tls_connection *conn)
2449 {
2450 const EVP_CIPHER *c;
2451 const EVP_MD *h;
2452
2453 if (conn == NULL || conn->ssl == NULL ||
2454 conn->ssl->enc_read_ctx == NULL ||
2455 conn->ssl->enc_read_ctx->cipher == NULL ||
2456 conn->ssl->read_hash == NULL)
2457 return -1;
2458
2459 c = conn->ssl->enc_read_ctx->cipher;
2460 #if OPENSSL_VERSION_NUMBER >= 0x00909000L
2461 h = EVP_MD_CTX_md(conn->ssl->read_hash);
2462 #else
2463 h = conn->ssl->read_hash;
2464 #endif
2465
2466 return 2 * (EVP_CIPHER_key_length(c) +
2467 EVP_MD_size(h) +
2468 EVP_CIPHER_iv_length(c));
2469 }
2470
2471
2472 unsigned int tls_capabilities(void *tls_ctx)
2473 {
2474 return 0;
2475 }
2476
2477
2478 int tls_connection_set_ia(void *tls_ctx, struct tls_connection *conn,
2479 int tls_ia)
2480 {
2481 return -1;
2482 }
2483
2484
2485 int tls_connection_ia_send_phase_finished(void *tls_ctx,
2486 struct tls_connection *conn,
2487 int final,
2488 u8 *out_data, size_t out_len)
2489 {
2490 return -1;
2491 }
2492
2493
2494 int tls_connection_ia_final_phase_finished(void *tls_ctx,
2495 struct tls_connection *conn)
2496 {
2497 return -1;
2498 }
2499
2500
2501 int tls_connection_ia_permute_inner_secret(void *tls_ctx,
2502 struct tls_connection *conn,
2503 const u8 *key, size_t key_len)
2504 {
2505 return -1;
2506 }
2507
2508
2509 #if defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC)
2510 /* Pre-shared secred requires a patch to openssl, so this function is
2511 * commented out unless explicitly needed for EAP-FAST in order to be able to
2512 * build this file with unmodified openssl. */
2513
2514 static int tls_sess_sec_cb(SSL *s, void *secret, int *secret_len,
2515 STACK_OF(SSL_CIPHER) *peer_ciphers,
2516 SSL_CIPHER **cipher, void *arg)
2517 {
2518 struct tls_connection *conn = arg;
2519 int ret;
2520
2521 if (conn == NULL || conn->session_ticket_cb == NULL)
2522 return 0;
2523
2524 ret = conn->session_ticket_cb(conn->session_ticket_cb_ctx,
2525 conn->session_ticket,
2526 conn->session_ticket_len,
2527 s->s3->client_random,
2528 s->s3->server_random, secret);
2529 os_free(conn->session_ticket);
2530 conn->session_ticket = NULL;
2531
2532 if (ret <= 0)
2533 return 0;
2534
2535 *secret_len = SSL_MAX_MASTER_KEY_LENGTH;
2536 return 1;
2537 }
2538
2539
2540 #ifdef CONFIG_OPENSSL_TICKET_OVERRIDE
2541 static int tls_session_ticket_ext_cb(SSL *s, const unsigned char *data,
2542 int len, void *arg)
2543 {
2544 struct tls_connection *conn = arg;
2545
2546 if (conn == NULL || conn->session_ticket_cb == NULL)
2547 return 0;
2548
2549 wpa_printf(MSG_DEBUG, "OpenSSL: %s: length=%d", __func__, len);
2550
2551 os_free(conn->session_ticket);
2552 conn->session_ticket = NULL;
2553
2554 wpa_hexdump(MSG_DEBUG, "OpenSSL: ClientHello SessionTicket "
2555 "extension", data, len);
2556
2557 conn->session_ticket = os_malloc(len);
2558 if (conn->session_ticket == NULL)
2559 return 0;
2560
2561 os_memcpy(conn->session_ticket, data, len);
2562 conn->session_ticket_len = len;
2563
2564 return 1;
2565 }
2566 #else /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2567 #ifdef SSL_OP_NO_TICKET
2568 static void tls_hello_ext_cb(SSL *s, int client_server, int type,
2569 unsigned char *data, int len, void *arg)
2570 {
2571 struct tls_connection *conn = arg;
2572
2573 if (conn == NULL || conn->session_ticket_cb == NULL)
2574 return;
2575
2576 wpa_printf(MSG_DEBUG, "OpenSSL: %s: type=%d length=%d", __func__,
2577 type, len);
2578
2579 if (type == TLSEXT_TYPE_session_ticket && !client_server) {
2580 os_free(conn->session_ticket);
2581 conn->session_ticket = NULL;
2582
2583 wpa_hexdump(MSG_DEBUG, "OpenSSL: ClientHello SessionTicket "
2584 "extension", data, len);
2585 conn->session_ticket = os_malloc(len);
2586 if (conn->session_ticket == NULL)
2587 return;
2588
2589 os_memcpy(conn->session_ticket, data, len);
2590 conn->session_ticket_len = len;
2591 }
2592 }
2593 #else /* SSL_OP_NO_TICKET */
2594 static int tls_hello_ext_cb(SSL *s, TLS_EXTENSION *ext, void *arg)
2595 {
2596 struct tls_connection *conn = arg;
2597
2598 if (conn == NULL || conn->session_ticket_cb == NULL)
2599 return 0;
2600
2601 wpa_printf(MSG_DEBUG, "OpenSSL: %s: type=%d length=%d", __func__,
2602 ext->type, ext->length);
2603
2604 os_free(conn->session_ticket);
2605 conn->session_ticket = NULL;
2606
2607 if (ext->type == 35) {
2608 wpa_hexdump(MSG_DEBUG, "OpenSSL: ClientHello SessionTicket "
2609 "extension", ext->data, ext->length);
2610 conn->session_ticket = os_malloc(ext->length);
2611 if (conn->session_ticket == NULL)
2612 return SSL_AD_INTERNAL_ERROR;
2613
2614 os_memcpy(conn->session_ticket, ext->data, ext->length);
2615 conn->session_ticket_len = ext->length;
2616 }
2617
2618 return 0;
2619 }
2620 #endif /* SSL_OP_NO_TICKET */
2621 #endif /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2622 #endif /* EAP_FAST || EAP_FAST_DYNAMIC */
2623
2624
2625 int tls_connection_set_session_ticket_cb(void *tls_ctx,
2626 struct tls_connection *conn,
2627 tls_session_ticket_cb cb,
2628 void *ctx)
2629 {
2630 #if defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC)
2631 conn->session_ticket_cb = cb;
2632 conn->session_ticket_cb_ctx = ctx;
2633
2634 if (cb) {
2635 if (SSL_set_session_secret_cb(conn->ssl, tls_sess_sec_cb,
2636 conn) != 1)
2637 return -1;
2638 #ifdef CONFIG_OPENSSL_TICKET_OVERRIDE
2639 SSL_set_session_ticket_ext_cb(conn->ssl,
2640 tls_session_ticket_ext_cb, conn);
2641 #else /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2642 #ifdef SSL_OP_NO_TICKET
2643 SSL_set_tlsext_debug_callback(conn->ssl, tls_hello_ext_cb);
2644 SSL_set_tlsext_debug_arg(conn->ssl, conn);
2645 #else /* SSL_OP_NO_TICKET */
2646 if (SSL_set_hello_extension_cb(conn->ssl, tls_hello_ext_cb,
2647 conn) != 1)
2648 return -1;
2649 #endif /* SSL_OP_NO_TICKET */
2650 #endif /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2651 } else {
2652 if (SSL_set_session_secret_cb(conn->ssl, NULL, NULL) != 1)
2653 return -1;
2654 #ifdef CONFIG_OPENSSL_TICKET_OVERRIDE
2655 SSL_set_session_ticket_ext_cb(conn->ssl, NULL, NULL);
2656 #else /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2657 #ifdef SSL_OP_NO_TICKET
2658 SSL_set_tlsext_debug_callback(conn->ssl, NULL);
2659 SSL_set_tlsext_debug_arg(conn->ssl, conn);
2660 #else /* SSL_OP_NO_TICKET */
2661 if (SSL_set_hello_extension_cb(conn->ssl, NULL, NULL) != 1)
2662 return -1;
2663 #endif /* SSL_OP_NO_TICKET */
2664 #endif /* CONFIG_OPENSSL_TICKET_OVERRIDE */
2665 }
2666
2667 return 0;
2668 #else /* EAP_FAST || EAP_FAST_DYNAMIC */
2669 return -1;
2670 #endif /* EAP_FAST || EAP_FAST_DYNAMIC */
2671 }
DragonFly BSD