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[thirdparty/openssl.git] / ssl / ssl_rsa.c
1 /* ssl/ssl_rsa.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <stdio.h>
60 #include "ssl_locl.h"
61 #include <openssl/bio.h>
62 #include <openssl/objects.h>
63 #include <openssl/evp.h>
64 #include <openssl/x509.h>
65 #include <openssl/pem.h>
66
67 static int ssl_set_cert(CERT *c, X509 *x509);
68 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
69 int SSL_use_certificate(SSL *ssl, X509 *x)
70 {
71 int rv;
72 if (x == NULL) {
73 SSLerr(SSL_F_SSL_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
74 return (0);
75 }
76 rv = ssl_security_cert(ssl, NULL, x, 0, 1);
77 if (rv != 1) {
78 SSLerr(SSL_F_SSL_USE_CERTIFICATE, rv);
79 return 0;
80 }
81
82 return (ssl_set_cert(ssl->cert, x));
83 }
84
85 #ifndef OPENSSL_NO_STDIO
86 int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
87 {
88 int j;
89 BIO *in;
90 int ret = 0;
91 X509 *x = NULL;
92
93 in = BIO_new(BIO_s_file());
94 if (in == NULL) {
95 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
96 goto end;
97 }
98
99 if (BIO_read_filename(in, file) <= 0) {
100 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
101 goto end;
102 }
103 if (type == SSL_FILETYPE_ASN1) {
104 j = ERR_R_ASN1_LIB;
105 x = d2i_X509_bio(in, NULL);
106 } else if (type == SSL_FILETYPE_PEM) {
107 j = ERR_R_PEM_LIB;
108 x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback,
109 ssl->ctx->default_passwd_callback_userdata);
110 } else {
111 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
112 goto end;
113 }
114
115 if (x == NULL) {
116 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, j);
117 goto end;
118 }
119
120 ret = SSL_use_certificate(ssl, x);
121 end:
122 X509_free(x);
123 BIO_free(in);
124 return (ret);
125 }
126 #endif
127
128 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
129 {
130 X509 *x;
131 int ret;
132
133 x = d2i_X509(NULL, &d, (long)len);
134 if (x == NULL) {
135 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
136 return (0);
137 }
138
139 ret = SSL_use_certificate(ssl, x);
140 X509_free(x);
141 return (ret);
142 }
143
144 #ifndef OPENSSL_NO_RSA
145 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
146 {
147 EVP_PKEY *pkey;
148 int ret;
149
150 if (rsa == NULL) {
151 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
152 return (0);
153 }
154 if ((pkey = EVP_PKEY_new()) == NULL) {
155 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
156 return (0);
157 }
158
159 RSA_up_ref(rsa);
160 if (EVP_PKEY_assign_RSA(pkey, rsa) <= 0) {
161 RSA_free(rsa);
162 return 0;
163 }
164
165 ret = ssl_set_pkey(ssl->cert, pkey);
166 EVP_PKEY_free(pkey);
167 return (ret);
168 }
169 #endif
170
171 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
172 {
173 int i;
174 i = ssl_cert_type(NULL, pkey);
175 if (i < 0) {
176 SSLerr(SSL_F_SSL_SET_PKEY, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
177 return (0);
178 }
179
180 if (c->pkeys[i].x509 != NULL) {
181 EVP_PKEY *pktmp;
182 pktmp = X509_get0_pubkey(c->pkeys[i].x509);
183 if (pktmp == NULL) {
184 SSLerr(SSL_F_SSL_SET_PKEY, ERR_R_MALLOC_FAILURE);
185 return 0;
186 }
187 /*
188 * The return code from EVP_PKEY_copy_parameters is deliberately
189 * ignored. Some EVP_PKEY types cannot do this.
190 */
191 EVP_PKEY_copy_parameters(pktmp, pkey);
192 ERR_clear_error();
193
194 #ifndef OPENSSL_NO_RSA
195 /*
196 * Don't check the public/private key, this is mostly for smart
197 * cards.
198 */
199 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA
200 && RSA_flags(EVP_PKEY_get0_RSA(pkey)) & RSA_METHOD_FLAG_NO_CHECK);
201 else
202 #endif
203 if (!X509_check_private_key(c->pkeys[i].x509, pkey)) {
204 X509_free(c->pkeys[i].x509);
205 c->pkeys[i].x509 = NULL;
206 return 0;
207 }
208 }
209
210 EVP_PKEY_free(c->pkeys[i].privatekey);
211 EVP_PKEY_up_ref(pkey);
212 c->pkeys[i].privatekey = pkey;
213 c->key = &(c->pkeys[i]);
214 return (1);
215 }
216
217 #ifndef OPENSSL_NO_RSA
218 # ifndef OPENSSL_NO_STDIO
219 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
220 {
221 int j, ret = 0;
222 BIO *in;
223 RSA *rsa = NULL;
224
225 in = BIO_new(BIO_s_file());
226 if (in == NULL) {
227 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
228 goto end;
229 }
230
231 if (BIO_read_filename(in, file) <= 0) {
232 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
233 goto end;
234 }
235 if (type == SSL_FILETYPE_ASN1) {
236 j = ERR_R_ASN1_LIB;
237 rsa = d2i_RSAPrivateKey_bio(in, NULL);
238 } else if (type == SSL_FILETYPE_PEM) {
239 j = ERR_R_PEM_LIB;
240 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
241 ssl->ctx->default_passwd_callback,
242 ssl->
243 ctx->default_passwd_callback_userdata);
244 } else {
245 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
246 goto end;
247 }
248 if (rsa == NULL) {
249 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, j);
250 goto end;
251 }
252 ret = SSL_use_RSAPrivateKey(ssl, rsa);
253 RSA_free(rsa);
254 end:
255 BIO_free(in);
256 return (ret);
257 }
258 # endif
259
260 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len)
261 {
262 int ret;
263 const unsigned char *p;
264 RSA *rsa;
265
266 p = d;
267 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
268 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
269 return (0);
270 }
271
272 ret = SSL_use_RSAPrivateKey(ssl, rsa);
273 RSA_free(rsa);
274 return (ret);
275 }
276 #endif /* !OPENSSL_NO_RSA */
277
278 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
279 {
280 int ret;
281
282 if (pkey == NULL) {
283 SSLerr(SSL_F_SSL_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
284 return (0);
285 }
286 ret = ssl_set_pkey(ssl->cert, pkey);
287 return (ret);
288 }
289
290 #ifndef OPENSSL_NO_STDIO
291 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
292 {
293 int j, ret = 0;
294 BIO *in;
295 EVP_PKEY *pkey = NULL;
296
297 in = BIO_new(BIO_s_file());
298 if (in == NULL) {
299 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
300 goto end;
301 }
302
303 if (BIO_read_filename(in, file) <= 0) {
304 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
305 goto end;
306 }
307 if (type == SSL_FILETYPE_PEM) {
308 j = ERR_R_PEM_LIB;
309 pkey = PEM_read_bio_PrivateKey(in, NULL,
310 ssl->ctx->default_passwd_callback,
311 ssl->
312 ctx->default_passwd_callback_userdata);
313 } else if (type == SSL_FILETYPE_ASN1) {
314 j = ERR_R_ASN1_LIB;
315 pkey = d2i_PrivateKey_bio(in, NULL);
316 } else {
317 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
318 goto end;
319 }
320 if (pkey == NULL) {
321 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, j);
322 goto end;
323 }
324 ret = SSL_use_PrivateKey(ssl, pkey);
325 EVP_PKEY_free(pkey);
326 end:
327 BIO_free(in);
328 return (ret);
329 }
330 #endif
331
332 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d,
333 long len)
334 {
335 int ret;
336 const unsigned char *p;
337 EVP_PKEY *pkey;
338
339 p = d;
340 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
341 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
342 return (0);
343 }
344
345 ret = SSL_use_PrivateKey(ssl, pkey);
346 EVP_PKEY_free(pkey);
347 return (ret);
348 }
349
350 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
351 {
352 int rv;
353 if (x == NULL) {
354 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
355 return (0);
356 }
357 rv = ssl_security_cert(NULL, ctx, x, 0, 1);
358 if (rv != 1) {
359 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, rv);
360 return 0;
361 }
362 return (ssl_set_cert(ctx->cert, x));
363 }
364
365 static int ssl_set_cert(CERT *c, X509 *x)
366 {
367 EVP_PKEY *pkey;
368 int i;
369
370 pkey = X509_get0_pubkey(x);
371 if (pkey == NULL) {
372 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_X509_LIB);
373 return (0);
374 }
375
376 i = ssl_cert_type(x, pkey);
377 if (i < 0) {
378 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
379 return 0;
380 }
381
382 if (c->pkeys[i].privatekey != NULL) {
383 /*
384 * The return code from EVP_PKEY_copy_parameters is deliberately
385 * ignored. Some EVP_PKEY types cannot do this.
386 */
387 EVP_PKEY_copy_parameters(pkey, c->pkeys[i].privatekey);
388 ERR_clear_error();
389
390 #ifndef OPENSSL_NO_RSA
391 /*
392 * Don't check the public/private key, this is mostly for smart
393 * cards.
394 */
395 if (EVP_PKEY_id(c->pkeys[i].privatekey) == EVP_PKEY_RSA
396 && RSA_flags(EVP_PKEY_get0_RSA(c->pkeys[i].privatekey)) &
397 RSA_METHOD_FLAG_NO_CHECK) ;
398 else
399 #endif /* OPENSSL_NO_RSA */
400 if (!X509_check_private_key(x, c->pkeys[i].privatekey)) {
401 /*
402 * don't fail for a cert/key mismatch, just free current private
403 * key (when switching to a different cert & key, first this
404 * function should be used, then ssl_set_pkey
405 */
406 EVP_PKEY_free(c->pkeys[i].privatekey);
407 c->pkeys[i].privatekey = NULL;
408 /* clear error queue */
409 ERR_clear_error();
410 }
411 }
412
413 X509_free(c->pkeys[i].x509);
414 X509_up_ref(x);
415 c->pkeys[i].x509 = x;
416 c->key = &(c->pkeys[i]);
417
418 return 1;
419 }
420
421 #ifndef OPENSSL_NO_STDIO
422 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
423 {
424 int j;
425 BIO *in;
426 int ret = 0;
427 X509 *x = NULL;
428
429 in = BIO_new(BIO_s_file());
430 if (in == NULL) {
431 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
432 goto end;
433 }
434
435 if (BIO_read_filename(in, file) <= 0) {
436 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
437 goto end;
438 }
439 if (type == SSL_FILETYPE_ASN1) {
440 j = ERR_R_ASN1_LIB;
441 x = d2i_X509_bio(in, NULL);
442 } else if (type == SSL_FILETYPE_PEM) {
443 j = ERR_R_PEM_LIB;
444 x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
445 ctx->default_passwd_callback_userdata);
446 } else {
447 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
448 goto end;
449 }
450
451 if (x == NULL) {
452 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, j);
453 goto end;
454 }
455
456 ret = SSL_CTX_use_certificate(ctx, x);
457 end:
458 X509_free(x);
459 BIO_free(in);
460 return (ret);
461 }
462 #endif
463
464 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
465 const unsigned char *d)
466 {
467 X509 *x;
468 int ret;
469
470 x = d2i_X509(NULL, &d, (long)len);
471 if (x == NULL) {
472 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
473 return (0);
474 }
475
476 ret = SSL_CTX_use_certificate(ctx, x);
477 X509_free(x);
478 return (ret);
479 }
480
481 #ifndef OPENSSL_NO_RSA
482 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
483 {
484 int ret;
485 EVP_PKEY *pkey;
486
487 if (rsa == NULL) {
488 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
489 return (0);
490 }
491 if ((pkey = EVP_PKEY_new()) == NULL) {
492 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
493 return (0);
494 }
495
496 RSA_up_ref(rsa);
497 if (EVP_PKEY_assign_RSA(pkey, rsa) <= 0) {
498 RSA_free(rsa);
499 return 0;
500 }
501
502 ret = ssl_set_pkey(ctx->cert, pkey);
503 EVP_PKEY_free(pkey);
504 return (ret);
505 }
506
507 # ifndef OPENSSL_NO_STDIO
508 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
509 {
510 int j, ret = 0;
511 BIO *in;
512 RSA *rsa = NULL;
513
514 in = BIO_new(BIO_s_file());
515 if (in == NULL) {
516 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
517 goto end;
518 }
519
520 if (BIO_read_filename(in, file) <= 0) {
521 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
522 goto end;
523 }
524 if (type == SSL_FILETYPE_ASN1) {
525 j = ERR_R_ASN1_LIB;
526 rsa = d2i_RSAPrivateKey_bio(in, NULL);
527 } else if (type == SSL_FILETYPE_PEM) {
528 j = ERR_R_PEM_LIB;
529 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
530 ctx->default_passwd_callback,
531 ctx->default_passwd_callback_userdata);
532 } else {
533 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
534 goto end;
535 }
536 if (rsa == NULL) {
537 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, j);
538 goto end;
539 }
540 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
541 RSA_free(rsa);
542 end:
543 BIO_free(in);
544 return (ret);
545 }
546 # endif
547
548 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
549 long len)
550 {
551 int ret;
552 const unsigned char *p;
553 RSA *rsa;
554
555 p = d;
556 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
557 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
558 return (0);
559 }
560
561 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
562 RSA_free(rsa);
563 return (ret);
564 }
565 #endif /* !OPENSSL_NO_RSA */
566
567 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
568 {
569 if (pkey == NULL) {
570 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
571 return (0);
572 }
573 return (ssl_set_pkey(ctx->cert, pkey));
574 }
575
576 #ifndef OPENSSL_NO_STDIO
577 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
578 {
579 int j, ret = 0;
580 BIO *in;
581 EVP_PKEY *pkey = NULL;
582
583 in = BIO_new(BIO_s_file());
584 if (in == NULL) {
585 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
586 goto end;
587 }
588
589 if (BIO_read_filename(in, file) <= 0) {
590 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
591 goto end;
592 }
593 if (type == SSL_FILETYPE_PEM) {
594 j = ERR_R_PEM_LIB;
595 pkey = PEM_read_bio_PrivateKey(in, NULL,
596 ctx->default_passwd_callback,
597 ctx->default_passwd_callback_userdata);
598 } else if (type == SSL_FILETYPE_ASN1) {
599 j = ERR_R_ASN1_LIB;
600 pkey = d2i_PrivateKey_bio(in, NULL);
601 } else {
602 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
603 goto end;
604 }
605 if (pkey == NULL) {
606 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, j);
607 goto end;
608 }
609 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
610 EVP_PKEY_free(pkey);
611 end:
612 BIO_free(in);
613 return (ret);
614 }
615 #endif
616
617 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx,
618 const unsigned char *d, long len)
619 {
620 int ret;
621 const unsigned char *p;
622 EVP_PKEY *pkey;
623
624 p = d;
625 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
626 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
627 return (0);
628 }
629
630 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
631 EVP_PKEY_free(pkey);
632 return (ret);
633 }
634
635 #ifndef OPENSSL_NO_STDIO
636 /*
637 * Read a file that contains our certificate in "PEM" format, possibly
638 * followed by a sequence of CA certificates that should be sent to the peer
639 * in the Certificate message.
640 */
641 static int use_certificate_chain_file(SSL_CTX *ctx, SSL *ssl, const char *file)
642 {
643 BIO *in;
644 int ret = 0;
645 X509 *x = NULL;
646 pem_password_cb *passwd_callback;
647 void *passwd_callback_userdata;
648
649 ERR_clear_error(); /* clear error stack for
650 * SSL_CTX_use_certificate() */
651
652 if (ctx != NULL) {
653 passwd_callback = ctx->default_passwd_callback;
654 passwd_callback_userdata = ctx->default_passwd_callback_userdata;
655 } else {
656 passwd_callback = ssl->default_passwd_callback;
657 passwd_callback_userdata = ssl->default_passwd_callback_userdata;
658 }
659
660 in = BIO_new(BIO_s_file());
661 if (in == NULL) {
662 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_BUF_LIB);
663 goto end;
664 }
665
666 if (BIO_read_filename(in, file) <= 0) {
667 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_SYS_LIB);
668 goto end;
669 }
670
671 x = PEM_read_bio_X509_AUX(in, NULL, passwd_callback,
672 passwd_callback_userdata);
673 if (x == NULL) {
674 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
675 goto end;
676 }
677
678 if (ctx)
679 ret = SSL_CTX_use_certificate(ctx, x);
680 else
681 ret = SSL_use_certificate(ssl, x);
682
683 if (ERR_peek_error() != 0)
684 ret = 0; /* Key/certificate mismatch doesn't imply
685 * ret==0 ... */
686 if (ret) {
687 /*
688 * If we could set up our certificate, now proceed to the CA
689 * certificates.
690 */
691 X509 *ca;
692 int r;
693 unsigned long err;
694
695 if (ctx)
696 r = SSL_CTX_clear_chain_certs(ctx);
697 else
698 r = SSL_clear_chain_certs(ssl);
699
700 if (r == 0) {
701 ret = 0;
702 goto end;
703 }
704
705 while ((ca = PEM_read_bio_X509(in, NULL, passwd_callback,
706 passwd_callback_userdata))
707 != NULL) {
708 if (ctx)
709 r = SSL_CTX_add0_chain_cert(ctx, ca);
710 else
711 r = SSL_add0_chain_cert(ssl, ca);
712 /*
713 * Note that we must not free ca if it was successfully added to
714 * the chain (while we must free the main certificate, since its
715 * reference count is increased by SSL_CTX_use_certificate).
716 */
717 if (!r) {
718 X509_free(ca);
719 ret = 0;
720 goto end;
721 }
722 }
723 /* When the while loop ends, it's usually just EOF. */
724 err = ERR_peek_last_error();
725 if (ERR_GET_LIB(err) == ERR_LIB_PEM
726 && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
727 ERR_clear_error();
728 else
729 ret = 0; /* some real error */
730 }
731
732 end:
733 X509_free(x);
734 BIO_free(in);
735 return (ret);
736 }
737
738 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
739 {
740 return use_certificate_chain_file(ctx, NULL, file);
741 }
742
743 int SSL_use_certificate_chain_file(SSL *ssl, const char *file)
744 {
745 return use_certificate_chain_file(NULL, ssl, file);
746 }
747 #endif
748
749 static int serverinfo_find_extension(const unsigned char *serverinfo,
750 size_t serverinfo_length,
751 unsigned int extension_type,
752 const unsigned char **extension_data,
753 size_t *extension_length)
754 {
755 *extension_data = NULL;
756 *extension_length = 0;
757 if (serverinfo == NULL || serverinfo_length == 0)
758 return -1;
759 for (;;) {
760 unsigned int type = 0;
761 size_t len = 0;
762
763 /* end of serverinfo */
764 if (serverinfo_length == 0)
765 return 0; /* Extension not found */
766
767 /* read 2-byte type field */
768 if (serverinfo_length < 2)
769 return -1; /* Error */
770 type = (serverinfo[0] << 8) + serverinfo[1];
771 serverinfo += 2;
772 serverinfo_length -= 2;
773
774 /* read 2-byte len field */
775 if (serverinfo_length < 2)
776 return -1; /* Error */
777 len = (serverinfo[0] << 8) + serverinfo[1];
778 serverinfo += 2;
779 serverinfo_length -= 2;
780
781 if (len > serverinfo_length)
782 return -1; /* Error */
783
784 if (type == extension_type) {
785 *extension_data = serverinfo;
786 *extension_length = len;
787 return 1; /* Success */
788 }
789
790 serverinfo += len;
791 serverinfo_length -= len;
792 }
793 /* Unreachable */
794 }
795
796 static int serverinfo_srv_parse_cb(SSL *s, unsigned int ext_type,
797 const unsigned char *in,
798 size_t inlen, int *al, void *arg)
799 {
800
801 if (inlen != 0) {
802 *al = SSL_AD_DECODE_ERROR;
803 return 0;
804 }
805
806 return 1;
807 }
808
809 static int serverinfo_srv_add_cb(SSL *s, unsigned int ext_type,
810 const unsigned char **out, size_t *outlen,
811 int *al, void *arg)
812 {
813 const unsigned char *serverinfo = NULL;
814 size_t serverinfo_length = 0;
815
816 /* Is there serverinfo data for the chosen server cert? */
817 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
818 &serverinfo_length)) != 0) {
819 /* Find the relevant extension from the serverinfo */
820 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
821 ext_type, out, outlen);
822 if (retval == -1) {
823 *al = SSL_AD_DECODE_ERROR;
824 return -1; /* Error */
825 }
826 if (retval == 0)
827 return 0; /* No extension found, don't send extension */
828 return 1; /* Send extension */
829 }
830 return -1; /* No serverinfo data found, don't send
831 * extension */
832 }
833
834 /*
835 * With a NULL context, this function just checks that the serverinfo data
836 * parses correctly. With a non-NULL context, it registers callbacks for
837 * the included extensions.
838 */
839 static int serverinfo_process_buffer(const unsigned char *serverinfo,
840 size_t serverinfo_length, SSL_CTX *ctx)
841 {
842 if (serverinfo == NULL || serverinfo_length == 0)
843 return 0;
844 for (;;) {
845 unsigned int ext_type = 0;
846 size_t len = 0;
847
848 /* end of serverinfo */
849 if (serverinfo_length == 0)
850 return 1;
851
852 /* read 2-byte type field */
853 if (serverinfo_length < 2)
854 return 0;
855 /* FIXME: check for types we understand explicitly? */
856
857 /* Register callbacks for extensions */
858 ext_type = (serverinfo[0] << 8) + serverinfo[1];
859 if (ctx && !SSL_CTX_add_server_custom_ext(ctx, ext_type,
860 serverinfo_srv_add_cb,
861 NULL, NULL,
862 serverinfo_srv_parse_cb,
863 NULL))
864 return 0;
865
866 serverinfo += 2;
867 serverinfo_length -= 2;
868
869 /* read 2-byte len field */
870 if (serverinfo_length < 2)
871 return 0;
872 len = (serverinfo[0] << 8) + serverinfo[1];
873 serverinfo += 2;
874 serverinfo_length -= 2;
875
876 if (len > serverinfo_length)
877 return 0;
878
879 serverinfo += len;
880 serverinfo_length -= len;
881 }
882 }
883
884 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
885 size_t serverinfo_length)
886 {
887 unsigned char *new_serverinfo;
888
889 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0) {
890 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_PASSED_NULL_PARAMETER);
891 return 0;
892 }
893 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL)) {
894 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
895 return 0;
896 }
897 if (ctx->cert->key == NULL) {
898 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_INTERNAL_ERROR);
899 return 0;
900 }
901 new_serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
902 serverinfo_length);
903 if (new_serverinfo == NULL) {
904 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_MALLOC_FAILURE);
905 return 0;
906 }
907 ctx->cert->key->serverinfo = new_serverinfo;
908 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
909 ctx->cert->key->serverinfo_length = serverinfo_length;
910
911 /*
912 * Now that the serverinfo is validated and stored, go ahead and
913 * register callbacks.
914 */
915 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx)) {
916 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
917 return 0;
918 }
919 return 1;
920 }
921
922 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
923 {
924 unsigned char *serverinfo = NULL;
925 size_t serverinfo_length = 0;
926 unsigned char *extension = 0;
927 long extension_length = 0;
928 char *name = NULL;
929 char *header = NULL;
930 char namePrefix[] = "SERVERINFO FOR ";
931 int ret = 0;
932 BIO *bin = NULL;
933 size_t num_extensions = 0;
934
935 if (ctx == NULL || file == NULL) {
936 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
937 ERR_R_PASSED_NULL_PARAMETER);
938 goto end;
939 }
940
941 bin = BIO_new(BIO_s_file());
942 if (bin == NULL) {
943 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
944 goto end;
945 }
946 if (BIO_read_filename(bin, file) <= 0) {
947 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
948 goto end;
949 }
950
951 for (num_extensions = 0;; num_extensions++) {
952 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length)
953 == 0) {
954 /*
955 * There must be at least one extension in this file
956 */
957 if (num_extensions == 0) {
958 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
959 SSL_R_NO_PEM_EXTENSIONS);
960 goto end;
961 } else /* End of file, we're done */
962 break;
963 }
964 /* Check that PEM name starts with "BEGIN SERVERINFO FOR " */
965 if (strlen(name) < strlen(namePrefix)) {
966 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
967 SSL_R_PEM_NAME_TOO_SHORT);
968 goto end;
969 }
970 if (strncmp(name, namePrefix, strlen(namePrefix)) != 0) {
971 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
972 SSL_R_PEM_NAME_BAD_PREFIX);
973 goto end;
974 }
975 /*
976 * Check that the decoded PEM data is plausible (valid length field)
977 */
978 if (extension_length < 4
979 || (extension[2] << 8) + extension[3] != extension_length - 4) {
980 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
981 goto end;
982 }
983 /* Append the decoded extension to the serverinfo buffer */
984 serverinfo =
985 OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
986 if (serverinfo == NULL) {
987 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
988 goto end;
989 }
990 memcpy(serverinfo + serverinfo_length, extension, extension_length);
991 serverinfo_length += extension_length;
992
993 OPENSSL_free(name);
994 name = NULL;
995 OPENSSL_free(header);
996 header = NULL;
997 OPENSSL_free(extension);
998 extension = NULL;
999 }
1000
1001 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1002 end:
1003 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1004 OPENSSL_free(name);
1005 OPENSSL_free(header);
1006 OPENSSL_free(extension);
1007 OPENSSL_free(serverinfo);
1008 BIO_free(bin);
1009 return ret;
1010 }
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