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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 #ifndef OPENSSL_NO_TLSEXT
70 static int ssl_set_authz(CERT *c, unsigned char *authz,
71 size_t authz_length);
72 #endif
73 int SSL_use_certificate(SSL *ssl, X509 *x)
74 {
75 if (x == NULL)
76 {
77 SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
78 return(0);
79 }
80 if (!ssl_cert_inst(&ssl->cert))
81 {
82 SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
83 return(0);
84 }
85 return(ssl_set_cert(ssl->cert,x));
86 }
87
88 #ifndef OPENSSL_NO_STDIO
89 int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
90 {
91 int j;
92 BIO *in;
93 int ret=0;
94 X509 *x=NULL;
95
96 in=BIO_new(BIO_s_file_internal());
97 if (in == NULL)
98 {
99 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
100 goto end;
101 }
102
103 if (BIO_read_filename(in,file) <= 0)
104 {
105 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
106 goto end;
107 }
108 if (type == SSL_FILETYPE_ASN1)
109 {
110 j=ERR_R_ASN1_LIB;
111 x=d2i_X509_bio(in,NULL);
112 }
113 else if (type == SSL_FILETYPE_PEM)
114 {
115 j=ERR_R_PEM_LIB;
116 x=PEM_read_bio_X509(in,NULL,ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
117 }
118 else
119 {
120 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
121 goto end;
122 }
123
124 if (x == NULL)
125 {
126 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,j);
127 goto end;
128 }
129
130 ret=SSL_use_certificate(ssl,x);
131 end:
132 if (x != NULL) X509_free(x);
133 if (in != NULL) BIO_free(in);
134 return(ret);
135 }
136 #endif
137
138 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
139 {
140 X509 *x;
141 int ret;
142
143 x=d2i_X509(NULL,&d,(long)len);
144 if (x == NULL)
145 {
146 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
147 return(0);
148 }
149
150 ret=SSL_use_certificate(ssl,x);
151 X509_free(x);
152 return(ret);
153 }
154
155 #ifndef OPENSSL_NO_RSA
156 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
157 {
158 EVP_PKEY *pkey;
159 int ret;
160
161 if (rsa == NULL)
162 {
163 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
164 return(0);
165 }
166 if (!ssl_cert_inst(&ssl->cert))
167 {
168 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
169 return(0);
170 }
171 if ((pkey=EVP_PKEY_new()) == NULL)
172 {
173 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
174 return(0);
175 }
176
177 RSA_up_ref(rsa);
178 EVP_PKEY_assign_RSA(pkey,rsa);
179
180 ret=ssl_set_pkey(ssl->cert,pkey);
181 EVP_PKEY_free(pkey);
182 return(ret);
183 }
184 #endif
185
186 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
187 {
188 int i;
189 /* Special case for DH: check two DH certificate types for a match.
190 * This means for DH certificates we must set the certificate first.
191 */
192 if (pkey->type == EVP_PKEY_DH)
193 {
194 X509 *x;
195 i = -1;
196 x = c->pkeys[SSL_PKEY_DH_RSA].x509;
197 if (x && X509_check_private_key(x, pkey))
198 i = SSL_PKEY_DH_RSA;
199 x = c->pkeys[SSL_PKEY_DH_DSA].x509;
200 if (i == -1 && x && X509_check_private_key(x, pkey))
201 i = SSL_PKEY_DH_DSA;
202 ERR_clear_error();
203 }
204 else
205 i=ssl_cert_type(NULL,pkey);
206 if (i < 0)
207 {
208 SSLerr(SSL_F_SSL_SET_PKEY,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
209 return(0);
210 }
211
212 if (c->pkeys[i].x509 != NULL)
213 {
214 EVP_PKEY *pktmp;
215 pktmp = X509_get_pubkey(c->pkeys[i].x509);
216 EVP_PKEY_copy_parameters(pktmp,pkey);
217 EVP_PKEY_free(pktmp);
218 ERR_clear_error();
219
220 #ifndef OPENSSL_NO_RSA
221 /* Don't check the public/private key, this is mostly
222 * for smart cards. */
223 if ((pkey->type == EVP_PKEY_RSA) &&
224 (RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
225 ;
226 else
227 #endif
228 if (!X509_check_private_key(c->pkeys[i].x509,pkey))
229 {
230 X509_free(c->pkeys[i].x509);
231 c->pkeys[i].x509 = NULL;
232 return 0;
233 }
234 }
235
236 if (c->pkeys[i].privatekey != NULL)
237 EVP_PKEY_free(c->pkeys[i].privatekey);
238 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
239 c->pkeys[i].privatekey=pkey;
240 c->key= &(c->pkeys[i]);
241
242 c->valid=0;
243 return(1);
244 }
245
246 #ifndef OPENSSL_NO_RSA
247 #ifndef OPENSSL_NO_STDIO
248 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
249 {
250 int j,ret=0;
251 BIO *in;
252 RSA *rsa=NULL;
253
254 in=BIO_new(BIO_s_file_internal());
255 if (in == NULL)
256 {
257 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
258 goto end;
259 }
260
261 if (BIO_read_filename(in,file) <= 0)
262 {
263 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
264 goto end;
265 }
266 if (type == SSL_FILETYPE_ASN1)
267 {
268 j=ERR_R_ASN1_LIB;
269 rsa=d2i_RSAPrivateKey_bio(in,NULL);
270 }
271 else if (type == SSL_FILETYPE_PEM)
272 {
273 j=ERR_R_PEM_LIB;
274 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
275 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
276 }
277 else
278 {
279 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
280 goto end;
281 }
282 if (rsa == NULL)
283 {
284 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,j);
285 goto end;
286 }
287 ret=SSL_use_RSAPrivateKey(ssl,rsa);
288 RSA_free(rsa);
289 end:
290 if (in != NULL) BIO_free(in);
291 return(ret);
292 }
293 #endif
294
295 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len)
296 {
297 int ret;
298 const unsigned char *p;
299 RSA *rsa;
300
301 p=d;
302 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
303 {
304 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
305 return(0);
306 }
307
308 ret=SSL_use_RSAPrivateKey(ssl,rsa);
309 RSA_free(rsa);
310 return(ret);
311 }
312 #endif /* !OPENSSL_NO_RSA */
313
314 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
315 {
316 int ret;
317
318 if (pkey == NULL)
319 {
320 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
321 return(0);
322 }
323 if (!ssl_cert_inst(&ssl->cert))
324 {
325 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
326 return(0);
327 }
328 ret=ssl_set_pkey(ssl->cert,pkey);
329 return(ret);
330 }
331
332 #ifndef OPENSSL_NO_STDIO
333 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
334 {
335 int j,ret=0;
336 BIO *in;
337 EVP_PKEY *pkey=NULL;
338
339 in=BIO_new(BIO_s_file_internal());
340 if (in == NULL)
341 {
342 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
343 goto end;
344 }
345
346 if (BIO_read_filename(in,file) <= 0)
347 {
348 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
349 goto end;
350 }
351 if (type == SSL_FILETYPE_PEM)
352 {
353 j=ERR_R_PEM_LIB;
354 pkey=PEM_read_bio_PrivateKey(in,NULL,
355 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
356 }
357 else if (type == SSL_FILETYPE_ASN1)
358 {
359 j = ERR_R_ASN1_LIB;
360 pkey = d2i_PrivateKey_bio(in,NULL);
361 }
362 else
363 {
364 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
365 goto end;
366 }
367 if (pkey == NULL)
368 {
369 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,j);
370 goto end;
371 }
372 ret=SSL_use_PrivateKey(ssl,pkey);
373 EVP_PKEY_free(pkey);
374 end:
375 if (in != NULL) BIO_free(in);
376 return(ret);
377 }
378 #endif
379
380 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d, long len)
381 {
382 int ret;
383 const unsigned char *p;
384 EVP_PKEY *pkey;
385
386 p=d;
387 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
388 {
389 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
390 return(0);
391 }
392
393 ret=SSL_use_PrivateKey(ssl,pkey);
394 EVP_PKEY_free(pkey);
395 return(ret);
396 }
397
398 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
399 {
400 if (x == NULL)
401 {
402 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
403 return(0);
404 }
405 if (!ssl_cert_inst(&ctx->cert))
406 {
407 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
408 return(0);
409 }
410 return(ssl_set_cert(ctx->cert, x));
411 }
412
413 static int ssl_set_cert(CERT *c, X509 *x)
414 {
415 EVP_PKEY *pkey;
416 int i;
417
418 pkey=X509_get_pubkey(x);
419 if (pkey == NULL)
420 {
421 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
422 return(0);
423 }
424
425 i=ssl_cert_type(x,pkey);
426 if (i < 0)
427 {
428 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
429 EVP_PKEY_free(pkey);
430 return(0);
431 }
432
433 if (c->pkeys[i].privatekey != NULL)
434 {
435 EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
436 ERR_clear_error();
437
438 #ifndef OPENSSL_NO_RSA
439 /* Don't check the public/private key, this is mostly
440 * for smart cards. */
441 if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
442 (RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
443 RSA_METHOD_FLAG_NO_CHECK))
444 ;
445 else
446 #endif /* OPENSSL_NO_RSA */
447 if (!X509_check_private_key(x,c->pkeys[i].privatekey))
448 {
449 /* don't fail for a cert/key mismatch, just free
450 * current private key (when switching to a different
451 * cert & key, first this function should be used,
452 * then ssl_set_pkey */
453 EVP_PKEY_free(c->pkeys[i].privatekey);
454 c->pkeys[i].privatekey=NULL;
455 /* clear error queue */
456 ERR_clear_error();
457 }
458 }
459
460 EVP_PKEY_free(pkey);
461
462 if (c->pkeys[i].x509 != NULL)
463 X509_free(c->pkeys[i].x509);
464 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
465 c->pkeys[i].x509=x;
466 #ifndef OPENSSL_NO_TLSEXT
467 /* Free the old authz data, if it exists. */
468 if (c->pkeys[i].authz != NULL)
469 {
470 OPENSSL_free(c->pkeys[i].authz);
471 c->pkeys[i].authz = NULL;
472 c->pkeys[i].authz_length = 0;
473 }
474
475 /* Free the old serverinfo data, if it exists. */
476 if (c->pkeys[i].serverinfo != NULL)
477 {
478 OPENSSL_free(c->pkeys[i].serverinfo);
479 c->pkeys[i].serverinfo = NULL;
480 c->pkeys[i].serverinfo_length = 0;
481 }
482 #endif
483 c->key= &(c->pkeys[i]);
484
485 c->valid=0;
486 return(1);
487 }
488
489 #ifndef OPENSSL_NO_STDIO
490 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
491 {
492 int j;
493 BIO *in;
494 int ret=0;
495 X509 *x=NULL;
496
497 in=BIO_new(BIO_s_file_internal());
498 if (in == NULL)
499 {
500 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
501 goto end;
502 }
503
504 if (BIO_read_filename(in,file) <= 0)
505 {
506 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
507 goto end;
508 }
509 if (type == SSL_FILETYPE_ASN1)
510 {
511 j=ERR_R_ASN1_LIB;
512 x=d2i_X509_bio(in,NULL);
513 }
514 else if (type == SSL_FILETYPE_PEM)
515 {
516 j=ERR_R_PEM_LIB;
517 x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
518 }
519 else
520 {
521 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
522 goto end;
523 }
524
525 if (x == NULL)
526 {
527 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
528 goto end;
529 }
530
531 ret=SSL_CTX_use_certificate(ctx,x);
532 end:
533 if (x != NULL) X509_free(x);
534 if (in != NULL) BIO_free(in);
535 return(ret);
536 }
537 #endif
538
539 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d)
540 {
541 X509 *x;
542 int ret;
543
544 x=d2i_X509(NULL,&d,(long)len);
545 if (x == NULL)
546 {
547 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
548 return(0);
549 }
550
551 ret=SSL_CTX_use_certificate(ctx,x);
552 X509_free(x);
553 return(ret);
554 }
555
556 #ifndef OPENSSL_NO_RSA
557 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
558 {
559 int ret;
560 EVP_PKEY *pkey;
561
562 if (rsa == NULL)
563 {
564 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
565 return(0);
566 }
567 if (!ssl_cert_inst(&ctx->cert))
568 {
569 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
570 return(0);
571 }
572 if ((pkey=EVP_PKEY_new()) == NULL)
573 {
574 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
575 return(0);
576 }
577
578 RSA_up_ref(rsa);
579 EVP_PKEY_assign_RSA(pkey,rsa);
580
581 ret=ssl_set_pkey(ctx->cert, pkey);
582 EVP_PKEY_free(pkey);
583 return(ret);
584 }
585
586 #ifndef OPENSSL_NO_STDIO
587 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
588 {
589 int j,ret=0;
590 BIO *in;
591 RSA *rsa=NULL;
592
593 in=BIO_new(BIO_s_file_internal());
594 if (in == NULL)
595 {
596 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
597 goto end;
598 }
599
600 if (BIO_read_filename(in,file) <= 0)
601 {
602 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
603 goto end;
604 }
605 if (type == SSL_FILETYPE_ASN1)
606 {
607 j=ERR_R_ASN1_LIB;
608 rsa=d2i_RSAPrivateKey_bio(in,NULL);
609 }
610 else if (type == SSL_FILETYPE_PEM)
611 {
612 j=ERR_R_PEM_LIB;
613 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
614 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
615 }
616 else
617 {
618 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
619 goto end;
620 }
621 if (rsa == NULL)
622 {
623 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
624 goto end;
625 }
626 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
627 RSA_free(rsa);
628 end:
629 if (in != NULL) BIO_free(in);
630 return(ret);
631 }
632 #endif
633
634 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
635 {
636 int ret;
637 const unsigned char *p;
638 RSA *rsa;
639
640 p=d;
641 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
642 {
643 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
644 return(0);
645 }
646
647 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
648 RSA_free(rsa);
649 return(ret);
650 }
651 #endif /* !OPENSSL_NO_RSA */
652
653 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
654 {
655 if (pkey == NULL)
656 {
657 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
658 return(0);
659 }
660 if (!ssl_cert_inst(&ctx->cert))
661 {
662 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
663 return(0);
664 }
665 return(ssl_set_pkey(ctx->cert,pkey));
666 }
667
668 #ifndef OPENSSL_NO_STDIO
669 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
670 {
671 int j,ret=0;
672 BIO *in;
673 EVP_PKEY *pkey=NULL;
674
675 in=BIO_new(BIO_s_file_internal());
676 if (in == NULL)
677 {
678 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
679 goto end;
680 }
681
682 if (BIO_read_filename(in,file) <= 0)
683 {
684 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
685 goto end;
686 }
687 if (type == SSL_FILETYPE_PEM)
688 {
689 j=ERR_R_PEM_LIB;
690 pkey=PEM_read_bio_PrivateKey(in,NULL,
691 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
692 }
693 else if (type == SSL_FILETYPE_ASN1)
694 {
695 j = ERR_R_ASN1_LIB;
696 pkey = d2i_PrivateKey_bio(in,NULL);
697 }
698 else
699 {
700 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
701 goto end;
702 }
703 if (pkey == NULL)
704 {
705 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
706 goto end;
707 }
708 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
709 EVP_PKEY_free(pkey);
710 end:
711 if (in != NULL) BIO_free(in);
712 return(ret);
713 }
714 #endif
715
716 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const unsigned char *d,
717 long len)
718 {
719 int ret;
720 const unsigned char *p;
721 EVP_PKEY *pkey;
722
723 p=d;
724 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
725 {
726 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
727 return(0);
728 }
729
730 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
731 EVP_PKEY_free(pkey);
732 return(ret);
733 }
734
735
736 #ifndef OPENSSL_NO_STDIO
737 /* Read a file that contains our certificate in "PEM" format,
738 * possibly followed by a sequence of CA certificates that should be
739 * sent to the peer in the Certificate message.
740 */
741 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
742 {
743 BIO *in;
744 int ret=0;
745 X509 *x=NULL;
746
747 ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
748
749 in = BIO_new(BIO_s_file_internal());
750 if (in == NULL)
751 {
752 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
753 goto end;
754 }
755
756 if (BIO_read_filename(in,file) <= 0)
757 {
758 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
759 goto end;
760 }
761
762 x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback,
763 ctx->default_passwd_callback_userdata);
764 if (x == NULL)
765 {
766 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
767 goto end;
768 }
769
770 ret = SSL_CTX_use_certificate(ctx, x);
771
772 if (ERR_peek_error() != 0)
773 ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */
774 if (ret)
775 {
776 /* If we could set up our certificate, now proceed to
777 * the CA certificates.
778 */
779 X509 *ca;
780 int r;
781 unsigned long err;
782
783 if (ctx->extra_certs != NULL)
784 {
785 sk_X509_pop_free(ctx->extra_certs, X509_free);
786 ctx->extra_certs = NULL;
787 }
788
789 while ((ca = PEM_read_bio_X509(in, NULL,
790 ctx->default_passwd_callback,
791 ctx->default_passwd_callback_userdata))
792 != NULL)
793 {
794 r = SSL_CTX_add_extra_chain_cert(ctx, ca);
795 if (!r)
796 {
797 X509_free(ca);
798 ret = 0;
799 goto end;
800 }
801 /* Note that we must not free r if it was successfully
802 * added to the chain (while we must free the main
803 * certificate, since its reference count is increased
804 * by SSL_CTX_use_certificate). */
805 }
806 /* When the while loop ends, it's usually just EOF. */
807 err = ERR_peek_last_error();
808 if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
809 ERR_clear_error();
810 else
811 ret = 0; /* some real error */
812 }
813
814 end:
815 if (x != NULL) X509_free(x);
816 if (in != NULL) BIO_free(in);
817 return(ret);
818 }
819 #endif
820
821 #ifndef OPENSSL_NO_TLSEXT
822 /* authz_validate returns true iff authz is well formed, i.e. that it meets the
823 * wire format as documented in the CERT_PKEY structure and that there are no
824 * duplicate entries. */
825 static char authz_validate(const unsigned char *authz, size_t length)
826 {
827 unsigned char types_seen_bitmap[32];
828
829 if (!authz)
830 return 1;
831
832 memset(types_seen_bitmap, 0, sizeof(types_seen_bitmap));
833
834 for (;;)
835 {
836 unsigned char type, byte, bit;
837 unsigned short len;
838
839 if (!length)
840 return 1;
841
842 type = *(authz++);
843 length--;
844
845 byte = type / 8;
846 bit = type & 7;
847 if (types_seen_bitmap[byte] & (1 << bit))
848 return 0;
849 types_seen_bitmap[byte] |= (1 << bit);
850
851 if (length < 2)
852 return 0;
853 len = ((unsigned short) authz[0]) << 8 |
854 ((unsigned short) authz[1]);
855 authz += 2;
856 length -= 2;
857
858 if (length < len)
859 return 0;
860
861 authz += len;
862 length -= len;
863 }
864 }
865
866 static int serverinfo_find_extension(const unsigned char *serverinfo,
867 size_t serverinfo_length,
868 unsigned short extension_type,
869 const unsigned char **extension_data,
870 unsigned short *extension_length)
871 {
872 *extension_data = NULL;
873 *extension_length = 0;
874 if (serverinfo == NULL || serverinfo_length == 0)
875 return 0;
876 for (;;)
877 {
878 unsigned short type = 0; /* uint16 */
879 unsigned short len = 0; /* uint16 */
880
881 /* end of serverinfo */
882 if (serverinfo_length == 0)
883 return -1; /* Extension not found */
884
885 /* read 2-byte type field */
886 if (serverinfo_length < 2)
887 return 0; /* Error */
888 type = (serverinfo[0] << 8) + serverinfo[1];
889 serverinfo += 2;
890 serverinfo_length -= 2;
891
892 /* read 2-byte len field */
893 if (serverinfo_length < 2)
894 return 0; /* Error */
895 len = (serverinfo[0] << 8) + serverinfo[1];
896 serverinfo += 2;
897 serverinfo_length -= 2;
898
899 if (len > serverinfo_length)
900 return 0; /* Error */
901
902 if (type == extension_type)
903 {
904 *extension_data = serverinfo;
905 *extension_length = len;
906 return 1; /* Success */
907 }
908
909 serverinfo += len;
910 serverinfo_length -= len;
911 }
912 return 0; /* Error */
913 }
914
915 static int serverinfo_srv_first_cb(SSL *s, unsigned short ext_type,
916 const unsigned char *in,
917 unsigned short inlen, int *al,
918 void *arg)
919 {
920 if (inlen != 0)
921 {
922 *al = SSL_AD_DECODE_ERROR;
923 return 0;
924 }
925 return 1;
926 }
927
928 static int serverinfo_srv_second_cb(SSL *s, unsigned short ext_type,
929 const unsigned char **out, unsigned short *outlen,
930 void *arg)
931 {
932 const unsigned char *serverinfo = NULL;
933 size_t serverinfo_length = 0;
934
935 /* Is there serverinfo data for the chosen server cert? */
936 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
937 &serverinfo_length)) != 0)
938 {
939 /* Find the relevant extension from the serverinfo */
940 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
941 ext_type, out, outlen);
942 if (retval == 0)
943 return 0; /* Error */
944 if (retval == -1)
945 return -1; /* No extension found, don't send extension */
946 return 1; /* Send extension */
947 }
948 return -1; /* No serverinfo data found, don't send extension */
949 }
950
951 /* With a NULL context, this function just checks that the serverinfo data
952 parses correctly. With a non-NULL context, it registers callbacks for
953 the included extensions. */
954 static int serverinfo_process_buffer(const unsigned char *serverinfo,
955 size_t serverinfo_length, SSL_CTX *ctx)
956 {
957 if (serverinfo == NULL || serverinfo_length == 0)
958 return 0;
959 for (;;)
960 {
961 unsigned short ext_type = 0; /* uint16 */
962 unsigned short len = 0; /* uint16 */
963
964 /* end of serverinfo */
965 if (serverinfo_length == 0)
966 return 1;
967
968 /* read 2-byte type field */
969 if (serverinfo_length < 2)
970 return 0;
971 /* FIXME: check for types we understand explicitly? */
972
973 /* Register callbacks for extensions */
974 ext_type = (serverinfo[0] << 8) + serverinfo[1];
975 if (ctx && !SSL_CTX_set_custom_srv_ext(ctx, ext_type,
976 serverinfo_srv_first_cb,
977 serverinfo_srv_second_cb, NULL))
978 return 0;
979
980 serverinfo += 2;
981 serverinfo_length -= 2;
982
983 /* read 2-byte len field */
984 if (serverinfo_length < 2)
985 return 0;
986 len = (serverinfo[0] << 8) + serverinfo[1];
987 serverinfo += 2;
988 serverinfo_length -= 2;
989
990 if (len > serverinfo_length)
991 return 0;
992
993 serverinfo += len;
994 serverinfo_length -= len;
995 }
996 }
997
998 static const unsigned char *authz_find_data(const unsigned char *authz,
999 size_t authz_length,
1000 unsigned char data_type,
1001 size_t *data_length)
1002 {
1003 if (authz == NULL) return NULL;
1004 if (!authz_validate(authz, authz_length))
1005 {
1006 SSLerr(SSL_F_AUTHZ_FIND_DATA,SSL_R_INVALID_AUTHZ_DATA);
1007 return NULL;
1008 }
1009
1010 for (;;)
1011 {
1012 unsigned char type;
1013 unsigned short len;
1014 if (!authz_length)
1015 return NULL;
1016
1017 type = *(authz++);
1018 authz_length--;
1019
1020 /* We've validated the authz data, so we don't have to
1021 * check again that we have enough bytes left. */
1022 len = ((unsigned short) authz[0]) << 8 |
1023 ((unsigned short) authz[1]);
1024 authz += 2;
1025 authz_length -= 2;
1026 if (type == data_type)
1027 {
1028 *data_length = len;
1029 return authz;
1030 }
1031 authz += len;
1032 authz_length -= len;
1033 }
1034 /* No match */
1035 return NULL;
1036 }
1037
1038 static int ssl_set_authz(CERT *c, unsigned char *authz, size_t authz_length)
1039 {
1040 CERT_PKEY *current_key = c->key;
1041 if (current_key == NULL)
1042 return 0;
1043 if (!authz_validate(authz, authz_length))
1044 {
1045 SSLerr(SSL_F_SSL_SET_AUTHZ,SSL_R_INVALID_AUTHZ_DATA);
1046 return(0);
1047 }
1048 current_key->authz = OPENSSL_realloc(current_key->authz, authz_length);
1049 if (current_key->authz == NULL)
1050 {
1051 SSLerr(SSL_F_SSL_SET_AUTHZ,ERR_R_MALLOC_FAILURE);
1052 return 0;
1053 }
1054 current_key->authz_length = authz_length;
1055 memcpy(current_key->authz, authz, authz_length);
1056 return 1;
1057 }
1058
1059 int SSL_CTX_use_authz(SSL_CTX *ctx, unsigned char *authz,
1060 size_t authz_length)
1061 {
1062 if (authz == NULL)
1063 {
1064 SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
1065 return 0;
1066 }
1067 if (!ssl_cert_inst(&ctx->cert))
1068 {
1069 SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
1070 return 0;
1071 }
1072 return ssl_set_authz(ctx->cert, authz, authz_length);
1073 }
1074
1075 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
1076 size_t serverinfo_length)
1077 {
1078 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0)
1079 {
1080 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_PASSED_NULL_PARAMETER);
1081 return 0;
1082 }
1083 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL))
1084 {
1085 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
1086 return(0);
1087 }
1088 if (!ssl_cert_inst(&ctx->cert))
1089 {
1090 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
1091 return 0;
1092 }
1093 if (ctx->cert->key == NULL)
1094 {
1095 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_INTERNAL_ERROR);
1096 return 0;
1097 }
1098 ctx->cert->key->serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
1099 serverinfo_length);
1100 if (ctx->cert->key->serverinfo == NULL)
1101 {
1102 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
1103 return 0;
1104 }
1105 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
1106 ctx->cert->key->serverinfo_length = serverinfo_length;
1107
1108 /* Now that the serverinfo is validated and stored, go ahead and
1109 * register callbacks. */
1110 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx))
1111 {
1112 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
1113 return(0);
1114 }
1115 return 1;
1116 }
1117
1118 int SSL_use_authz(SSL *ssl, unsigned char *authz, size_t authz_length)
1119 {
1120 if (authz == NULL)
1121 {
1122 SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
1123 return 0;
1124 }
1125 if (!ssl_cert_inst(&ssl->cert))
1126 {
1127 SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
1128 return 0;
1129 }
1130 return ssl_set_authz(ssl->cert, authz, authz_length);
1131 }
1132
1133 const unsigned char *SSL_CTX_get_authz_data(SSL_CTX *ctx, unsigned char type,
1134 size_t *data_length)
1135 {
1136 CERT_PKEY *current_key;
1137
1138 if (ctx->cert == NULL)
1139 return NULL;
1140 current_key = ctx->cert->key;
1141 if (current_key->authz == NULL)
1142 return NULL;
1143 return authz_find_data(current_key->authz,
1144 current_key->authz_length, type, data_length);
1145 }
1146
1147 #ifndef OPENSSL_NO_STDIO
1148 /* read_authz returns a newly allocated buffer with authz data */
1149 static unsigned char *read_authz(const char *file, size_t *authz_length)
1150 {
1151 BIO *authz_in = NULL;
1152 unsigned char *authz = NULL;
1153 /* Allow authzs up to 64KB. */
1154 static const size_t authz_limit = 65536;
1155 size_t read_length;
1156 unsigned char *ret = NULL;
1157
1158 authz_in = BIO_new(BIO_s_file_internal());
1159 if (authz_in == NULL)
1160 {
1161 SSLerr(SSL_F_READ_AUTHZ,ERR_R_BUF_LIB);
1162 goto end;
1163 }
1164
1165 if (BIO_read_filename(authz_in,file) <= 0)
1166 {
1167 SSLerr(SSL_F_READ_AUTHZ,ERR_R_SYS_LIB);
1168 goto end;
1169 }
1170
1171 authz = OPENSSL_malloc(authz_limit);
1172 read_length = BIO_read(authz_in, authz, authz_limit);
1173 if (read_length == authz_limit || read_length <= 0)
1174 {
1175 SSLerr(SSL_F_READ_AUTHZ,SSL_R_AUTHZ_DATA_TOO_LARGE);
1176 OPENSSL_free(authz);
1177 goto end;
1178 }
1179 *authz_length = read_length;
1180 ret = authz;
1181 end:
1182 if (authz_in != NULL) BIO_free(authz_in);
1183 return ret;
1184 }
1185
1186 int SSL_CTX_use_authz_file(SSL_CTX *ctx, const char *file)
1187 {
1188 unsigned char *authz = NULL;
1189 size_t authz_length = 0;
1190 int ret;
1191
1192 authz = read_authz(file, &authz_length);
1193 if (authz == NULL)
1194 return 0;
1195
1196 ret = SSL_CTX_use_authz(ctx, authz, authz_length);
1197 /* SSL_CTX_use_authz makes a local copy of the authz. */
1198 OPENSSL_free(authz);
1199 return ret;
1200 }
1201
1202 int SSL_use_authz_file(SSL *ssl, const char *file)
1203 {
1204 unsigned char *authz = NULL;
1205 size_t authz_length = 0;
1206 int ret;
1207
1208 authz = read_authz(file, &authz_length);
1209 if (authz == NULL)
1210 return 0;
1211
1212 ret = SSL_use_authz(ssl, authz, authz_length);
1213 /* SSL_use_authz makes a local copy of the authz. */
1214 OPENSSL_free(authz);
1215 return ret;
1216 }
1217
1218 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
1219 {
1220 unsigned char *serverinfo = NULL;
1221 size_t serverinfo_length = 0;
1222 unsigned char* extension = 0;
1223 long extension_length = 0;
1224 char* name = NULL;
1225 char* header = NULL;
1226 int ret = 0;
1227 BIO *bin = NULL;
1228 size_t num_extensions = 0;
1229
1230 if (ctx == NULL || file == NULL)
1231 {
1232 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,ERR_R_PASSED_NULL_PARAMETER);
1233 goto end;
1234 }
1235
1236 bin = BIO_new(BIO_s_file_internal());
1237 if (bin == NULL)
1238 {
1239 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
1240 goto end;
1241 }
1242 if (BIO_read_filename(bin, file) <= 0)
1243 {
1244 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
1245 goto end;
1246 }
1247
1248 for (num_extensions=0;; num_extensions++)
1249 {
1250 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length) == 0)
1251 {
1252 /* There must be at least one extension in this file */
1253 if (num_extensions == 0)
1254 {
1255 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
1256 goto end;
1257 }
1258 else /* End of file, we're done */
1259 break;
1260 }
1261 /* Check that the decoded PEM data is plausible (valid length field) */
1262 if (extension_length < 4 || (extension[2] << 8) + extension[3] != extension_length - 4)
1263 {
1264 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
1265 goto end;
1266 }
1267 /* Append the decoded extension to the serverinfo buffer */
1268 serverinfo = OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
1269 if (serverinfo == NULL)
1270 {
1271 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
1272 goto end;
1273 }
1274 memcpy(serverinfo + serverinfo_length, extension, extension_length);
1275 serverinfo_length += extension_length;
1276
1277 OPENSSL_free(name); name = NULL;
1278 OPENSSL_free(header); header = NULL;
1279 OPENSSL_free(extension); extension = NULL;
1280 }
1281
1282 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1283 end:
1284 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1285 OPENSSL_free(name);
1286 OPENSSL_free(header);
1287 OPENSSL_free(extension);
1288 OPENSSL_free(serverinfo);
1289 if (bin != NULL)
1290 BIO_free(bin);
1291 return ret;
1292 }
1293 #endif /* OPENSSL_NO_STDIO */
1294 #endif /* OPENSSL_NO_TLSEXT */
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