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1/*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
3 */
4/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * All rights reserved.
6 *
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
10 *
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
17 *
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
24 *
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
42 *
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
54 *
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
59 */
60/* ====================================================================
61 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
62 *
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
65 * are met:
66 *
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 *
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
73 * distribution.
74 *
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
79 *
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
84 *
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
88 *
89 * 6. Redistributions of any form whatsoever must retain the following
90 * acknowledgment:
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
93 *
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
107 *
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
111 *
112 */
113
114
115#ifdef REF_CHECK
116# include <assert.h>
117#endif
118#include <stdio.h>
119#include "ssl_locl.h"
120#include "kssl_lcl.h"
121#include <openssl/objects.h>
122#include <openssl/lhash.h>
123#include <openssl/x509v3.h>
124#include <openssl/fips.h>
125
126const char *SSL_version_str=OPENSSL_VERSION_TEXT;
127
128SSL3_ENC_METHOD ssl3_undef_enc_method={
129 /* evil casts, but these functions are only called if there's a library bug */
130 (int (*)(SSL *,int))ssl_undefined_function,
131 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
132 ssl_undefined_function,
133 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
134 (int (*)(SSL*, int))ssl_undefined_function,
135 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
136 };
137
138int SSL_clear(SSL *s)
139 {
140
141 if (s->method == NULL)
142 {
143 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
144 return(0);
145 }
146
147 if (ssl_clear_bad_session(s))
148 {
149 SSL_SESSION_free(s->session);
150 s->session=NULL;
151 }
152
153 s->error=0;
154 s->hit=0;
155 s->shutdown=0;
156
157#if 0 /* Disabled since version 1.10 of this file (early return not
158 * needed because SSL_clear is not called when doing renegotiation) */
159 /* This is set if we are doing dynamic renegotiation so keep
160 * the old cipher. It is sort of a SSL_clear_lite :-) */
161 if (s->new_session) return(1);
162#else
163 if (s->new_session)
164 {
165 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
166 return 0;
167 }
168#endif
169
170 s->type=0;
171
172 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
173
174 s->version=s->method->version;
175 s->client_version=s->version;
176 s->rwstate=SSL_NOTHING;
177 s->rstate=SSL_ST_READ_HEADER;
178#if 0
179 s->read_ahead=s->ctx->read_ahead;
180#endif
181
182 if (s->init_buf != NULL)
183 {
184 BUF_MEM_free(s->init_buf);
185 s->init_buf=NULL;
186 }
187
188 ssl_clear_cipher_ctx(s);
189
190 s->first_packet=0;
191
192#if 1
193 /* Check to see if we were changed into a different method, if
194 * so, revert back if we are not doing session-id reuse. */
195 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
196 {
197 s->method->ssl_free(s);
198 s->method=s->ctx->method;
199 if (!s->method->ssl_new(s))
200 return(0);
201 }
202 else
203#endif
204 s->method->ssl_clear(s);
205 return(1);
206 }
207
208/** Used to change an SSL_CTXs default SSL method type */
209int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
210 {
211 STACK_OF(SSL_CIPHER) *sk;
212
213 ctx->method=meth;
214
215 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
216 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
217 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
218 {
219 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
220 return(0);
221 }
222 return(1);
223 }
224
225SSL *SSL_new(SSL_CTX *ctx)
226 {
227 SSL *s;
228
229 if (ctx == NULL)
230 {
231 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
232 return(NULL);
233 }
234 if (ctx->method == NULL)
235 {
236 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
237 return(NULL);
238 }
239
240 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
241 if (s == NULL) goto err;
242 memset(s,0,sizeof(SSL));
243
244#ifndef OPENSSL_NO_KRB5
245 s->kssl_ctx = kssl_ctx_new();
246#endif /* OPENSSL_NO_KRB5 */
247
248 s->options=ctx->options;
249 s->mode=ctx->mode;
250 s->max_cert_list=ctx->max_cert_list;
251
252 if (ctx->cert != NULL)
253 {
254 /* Earlier library versions used to copy the pointer to
255 * the CERT, not its contents; only when setting new
256 * parameters for the per-SSL copy, ssl_cert_new would be
257 * called (and the direct reference to the per-SSL_CTX
258 * settings would be lost, but those still were indirectly
259 * accessed for various purposes, and for that reason they
260 * used to be known as s->ctx->default_cert).
261 * Now we don't look at the SSL_CTX's CERT after having
262 * duplicated it once. */
263
264 s->cert = ssl_cert_dup(ctx->cert);
265 if (s->cert == NULL)
266 goto err;
267 }
268 else
269 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
270
271 s->read_ahead=ctx->read_ahead;
272 s->msg_callback=ctx->msg_callback;
273 s->msg_callback_arg=ctx->msg_callback_arg;
274 s->verify_mode=ctx->verify_mode;
275 s->verify_depth=ctx->verify_depth;
276 s->sid_ctx_length=ctx->sid_ctx_length;
277 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
278 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
279 s->verify_callback=ctx->default_verify_callback;
280 s->generate_session_id=ctx->generate_session_id;
281 s->purpose = ctx->purpose;
282 s->trust = ctx->trust;
283 s->quiet_shutdown=ctx->quiet_shutdown;
284
285 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
286 s->ctx=ctx;
287
288 s->verify_result=X509_V_OK;
289
290 s->method=ctx->method;
291
292 if (!s->method->ssl_new(s))
293 goto err;
294
295 s->references=1;
296 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
297
298 SSL_clear(s);
299
300 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
301
302 return(s);
303err:
304 if (s != NULL)
305 {
306 if (s->cert != NULL)
307 ssl_cert_free(s->cert);
308 if (s->ctx != NULL)
309 SSL_CTX_free(s->ctx); /* decrement reference count */
310 OPENSSL_free(s);
311 }
312 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
313 return(NULL);
314 }
315
316int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
317 unsigned int sid_ctx_len)
318 {
319 if(sid_ctx_len > sizeof ctx->sid_ctx)
320 {
321 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
322 return 0;
323 }
324 ctx->sid_ctx_length=sid_ctx_len;
325 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
326
327 return 1;
328 }
329
330int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
331 unsigned int sid_ctx_len)
332 {
333 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
334 {
335 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
336 return 0;
337 }
338 ssl->sid_ctx_length=sid_ctx_len;
339 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
340
341 return 1;
342 }
343
344int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
345 {
346 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
347 ctx->generate_session_id = cb;
348 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
349 return 1;
350 }
351
352int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
353 {
354 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
355 ssl->generate_session_id = cb;
356 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
357 return 1;
358 }
359
360int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
361 unsigned int id_len)
362 {
363 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
364 * we can "construct" a session to give us the desired check - ie. to
365 * find if there's a session in the hash table that would conflict with
366 * any new session built out of this id/id_len and the ssl_version in
367 * use by this SSL. */
368 SSL_SESSION r, *p;
369
370 if(id_len > sizeof r.session_id)
371 return 0;
372
373 r.ssl_version = ssl->version;
374 r.session_id_length = id_len;
375 memcpy(r.session_id, id, id_len);
376 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
377 * callback is calling us to check the uniqueness of a shorter ID, it
378 * must be compared as a padded-out ID because that is what it will be
379 * converted to when the callback has finished choosing it. */
380 if((r.ssl_version == SSL2_VERSION) &&
381 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
382 {
383 memset(r.session_id + id_len, 0,
384 SSL2_SSL_SESSION_ID_LENGTH - id_len);
385 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
386 }
387
388 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
389 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
390 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
391 return (p != NULL);
392 }
393
394int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
395 {
396 return X509_PURPOSE_set(&s->purpose, purpose);
397 }
398
399int SSL_set_purpose(SSL *s, int purpose)
400 {
401 return X509_PURPOSE_set(&s->purpose, purpose);
402 }
403
404int SSL_CTX_set_trust(SSL_CTX *s, int trust)
405 {
406 return X509_TRUST_set(&s->trust, trust);
407 }
408
409int SSL_set_trust(SSL *s, int trust)
410 {
411 return X509_TRUST_set(&s->trust, trust);
412 }
413
414void SSL_free(SSL *s)
415 {
416 int i;
417
418 if(s == NULL)
419 return;
420
421 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
422#ifdef REF_PRINT
423 REF_PRINT("SSL",s);
424#endif
425 if (i > 0) return;
426#ifdef REF_CHECK
427 if (i < 0)
428 {
429 fprintf(stderr,"SSL_free, bad reference count\n");
430 abort(); /* ok */
431 }
432#endif
433
434 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
435
436 if (s->bbio != NULL)
437 {
438 /* If the buffering BIO is in place, pop it off */
439 if (s->bbio == s->wbio)
440 {
441 s->wbio=BIO_pop(s->wbio);
442 }
443 BIO_free(s->bbio);
444 s->bbio=NULL;
445 }
446 if (s->rbio != NULL)
447 BIO_free_all(s->rbio);
448 if ((s->wbio != NULL) && (s->wbio != s->rbio))
449 BIO_free_all(s->wbio);
450
451 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
452
453 /* add extra stuff */
454 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
455 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
456
457 /* Make the next call work :-) */
458 if (s->session != NULL)
459 {
460 ssl_clear_bad_session(s);
461 SSL_SESSION_free(s->session);
462 }
463
464 ssl_clear_cipher_ctx(s);
465
466 if (s->cert != NULL) ssl_cert_free(s->cert);
467 /* Free up if allocated */
468
469 if (s->ctx) SSL_CTX_free(s->ctx);
470
471 if (s->client_CA != NULL)
472 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
473
474 if (s->method != NULL) s->method->ssl_free(s);
475
476#ifndef OPENSSL_NO_KRB5
477 if (s->kssl_ctx != NULL)
478 kssl_ctx_free(s->kssl_ctx);
479#endif /* OPENSSL_NO_KRB5 */
480
481 OPENSSL_free(s);
482 }
483
484void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
485 {
486 /* If the output buffering BIO is still in place, remove it
487 */
488 if (s->bbio != NULL)
489 {
490 if (s->wbio == s->bbio)
491 {
492 s->wbio=s->wbio->next_bio;
493 s->bbio->next_bio=NULL;
494 }
495 }
496 if ((s->rbio != NULL) && (s->rbio != rbio))
497 BIO_free_all(s->rbio);
498 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
499 BIO_free_all(s->wbio);
500 s->rbio=rbio;
501 s->wbio=wbio;
502 }
503
504BIO *SSL_get_rbio(const SSL *s)
505 { return(s->rbio); }
506
507BIO *SSL_get_wbio(const SSL *s)
508 { return(s->wbio); }
509
510int SSL_get_fd(const SSL *s)
511 {
512 return(SSL_get_rfd(s));
513 }
514
515int SSL_get_rfd(const SSL *s)
516 {
517 int ret= -1;
518 BIO *b,*r;
519
520 b=SSL_get_rbio(s);
521 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
522 if (r != NULL)
523 BIO_get_fd(r,&ret);
524 return(ret);
525 }
526
527int SSL_get_wfd(const SSL *s)
528 {
529 int ret= -1;
530 BIO *b,*r;
531
532 b=SSL_get_wbio(s);
533 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
534 if (r != NULL)
535 BIO_get_fd(r,&ret);
536 return(ret);
537 }
538
539#ifndef OPENSSL_NO_SOCK
540int SSL_set_fd(SSL *s,int fd)
541 {
542 int ret=0;
543 BIO *bio=NULL;
544
545 bio=BIO_new(BIO_s_socket());
546
547 if (bio == NULL)
548 {
549 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
550 goto err;
551 }
552 BIO_set_fd(bio,fd,BIO_NOCLOSE);
553 SSL_set_bio(s,bio,bio);
554 ret=1;
555err:
556 return(ret);
557 }
558
559int SSL_set_wfd(SSL *s,int fd)
560 {
561 int ret=0;
562 BIO *bio=NULL;
563
564 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
565 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
566 {
567 bio=BIO_new(BIO_s_socket());
568
569 if (bio == NULL)
570 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
571 BIO_set_fd(bio,fd,BIO_NOCLOSE);
572 SSL_set_bio(s,SSL_get_rbio(s),bio);
573 }
574 else
575 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
576 ret=1;
577err:
578 return(ret);
579 }
580
581int SSL_set_rfd(SSL *s,int fd)
582 {
583 int ret=0;
584 BIO *bio=NULL;
585
586 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
587 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
588 {
589 bio=BIO_new(BIO_s_socket());
590
591 if (bio == NULL)
592 {
593 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
594 goto err;
595 }
596 BIO_set_fd(bio,fd,BIO_NOCLOSE);
597 SSL_set_bio(s,bio,SSL_get_wbio(s));
598 }
599 else
600 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
601 ret=1;
602err:
603 return(ret);
604 }
605#endif
606
607
608/* return length of latest Finished message we sent, copy to 'buf' */
609size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
610 {
611 size_t ret = 0;
612
613 if (s->s3 != NULL)
614 {
615 ret = s->s3->tmp.finish_md_len;
616 if (count > ret)
617 count = ret;
618 memcpy(buf, s->s3->tmp.finish_md, count);
619 }
620 return ret;
621 }
622
623/* return length of latest Finished message we expected, copy to 'buf' */
624size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
625 {
626 size_t ret = 0;
627
628 if (s->s3 != NULL)
629 {
630 ret = s->s3->tmp.peer_finish_md_len;
631 if (count > ret)
632 count = ret;
633 memcpy(buf, s->s3->tmp.peer_finish_md, count);
634 }
635 return ret;
636 }
637
638
639int SSL_get_verify_mode(const SSL *s)
640 {
641 return(s->verify_mode);
642 }
643
644int SSL_get_verify_depth(const SSL *s)
645 {
646 return(s->verify_depth);
647 }
648
649int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
650 {
651 return(s->verify_callback);
652 }
653
654int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
655 {
656 return(ctx->verify_mode);
657 }
658
659int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
660 {
661 return(ctx->verify_depth);
662 }
663
664int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
665 {
666 return(ctx->default_verify_callback);
667 }
668
669void SSL_set_verify(SSL *s,int mode,
670 int (*callback)(int ok,X509_STORE_CTX *ctx))
671 {
672 s->verify_mode=mode;
673 if (callback != NULL)
674 s->verify_callback=callback;
675 }
676
677void SSL_set_verify_depth(SSL *s,int depth)
678 {
679 s->verify_depth=depth;
680 }
681
682void SSL_set_read_ahead(SSL *s,int yes)
683 {
684 s->read_ahead=yes;
685 }
686
687int SSL_get_read_ahead(const SSL *s)
688 {
689 return(s->read_ahead);
690 }
691
692int SSL_pending(const SSL *s)
693 {
694 /* SSL_pending cannot work properly if read-ahead is enabled
695 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
696 * and it is impossible to fix since SSL_pending cannot report
697 * errors that may be observed while scanning the new data.
698 * (Note that SSL_pending() is often used as a boolean value,
699 * so we'd better not return -1.)
700 */
701 return(s->method->ssl_pending(s));
702 }
703
704X509 *SSL_get_peer_certificate(const SSL *s)
705 {
706 X509 *r;
707
708 if ((s == NULL) || (s->session == NULL))
709 r=NULL;
710 else
711 r=s->session->peer;
712
713 if (r == NULL) return(r);
714
715 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
716
717 return(r);
718 }
719
720STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
721 {
722 STACK_OF(X509) *r;
723
724 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
725 r=NULL;
726 else
727 r=s->session->sess_cert->cert_chain;
728
729 /* If we are a client, cert_chain includes the peer's own
730 * certificate; if we are a server, it does not. */
731
732 return(r);
733 }
734
735/* Now in theory, since the calling process own 't' it should be safe to
736 * modify. We need to be able to read f without being hassled */
737void SSL_copy_session_id(SSL *t,const SSL *f)
738 {
739 CERT *tmp;
740
741 /* Do we need to to SSL locking? */
742 SSL_set_session(t,SSL_get_session(f));
743
744 /* what if we are setup as SSLv2 but want to talk SSLv3 or
745 * vice-versa */
746 if (t->method != f->method)
747 {
748 t->method->ssl_free(t); /* cleanup current */
749 t->method=f->method; /* change method */
750 t->method->ssl_new(t); /* setup new */
751 }
752
753 tmp=t->cert;
754 if (f->cert != NULL)
755 {
756 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
757 t->cert=f->cert;
758 }
759 else
760 t->cert=NULL;
761 if (tmp != NULL) ssl_cert_free(tmp);
762 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
763 }
764
765/* Fix this so it checks all the valid key/cert options */
766int SSL_CTX_check_private_key(const SSL_CTX *ctx)
767 {
768 if ( (ctx == NULL) ||
769 (ctx->cert == NULL) ||
770 (ctx->cert->key->x509 == NULL))
771 {
772 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
773 return(0);
774 }
775 if (ctx->cert->key->privatekey == NULL)
776 {
777 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
778 return(0);
779 }
780 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
781 }
782
783/* Fix this function so that it takes an optional type parameter */
784int SSL_check_private_key(const SSL *ssl)
785 {
786 if (ssl == NULL)
787 {
788 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
789 return(0);
790 }
791 if (ssl->cert == NULL)
792 {
793 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
794 return 0;
795 }
796 if (ssl->cert->key->x509 == NULL)
797 {
798 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
799 return(0);
800 }
801 if (ssl->cert->key->privatekey == NULL)
802 {
803 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
804 return(0);
805 }
806 return(X509_check_private_key(ssl->cert->key->x509,
807 ssl->cert->key->privatekey));
808 }
809
810int SSL_accept(SSL *s)
811 {
812 if (s->handshake_func == 0)
813 /* Not properly initialized yet */
814 SSL_set_accept_state(s);
815
816 return(s->method->ssl_accept(s));
817 }
818
819int SSL_connect(SSL *s)
820 {
821 if (s->handshake_func == 0)
822 /* Not properly initialized yet */
823 SSL_set_connect_state(s);
824
825 return(s->method->ssl_connect(s));
826 }
827
828long SSL_get_default_timeout(const SSL *s)
829 {
830 return(s->method->get_timeout());
831 }
832
833int SSL_read(SSL *s,void *buf,int num)
834 {
835 if (s->handshake_func == 0)
836 {
837 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
838 return -1;
839 }
840
841 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
842 {
843 s->rwstate=SSL_NOTHING;
844 return(0);
845 }
846 return(s->method->ssl_read(s,buf,num));
847 }
848
849int SSL_peek(SSL *s,void *buf,int num)
850 {
851 if (s->handshake_func == 0)
852 {
853 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
854 return -1;
855 }
856
857 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
858 {
859 return(0);
860 }
861 return(s->method->ssl_peek(s,buf,num));
862 }
863
864int SSL_write(SSL *s,const void *buf,int num)
865 {
866 if (s->handshake_func == 0)
867 {
868 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
869 return -1;
870 }
871
872 if (s->shutdown & SSL_SENT_SHUTDOWN)
873 {
874 s->rwstate=SSL_NOTHING;
875 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
876 return(-1);
877 }
878 return(s->method->ssl_write(s,buf,num));
879 }
880
881int SSL_shutdown(SSL *s)
882 {
883 /* Note that this function behaves differently from what one might
884 * expect. Return values are 0 for no success (yet),
885 * 1 for success; but calling it once is usually not enough,
886 * even if blocking I/O is used (see ssl3_shutdown).
887 */
888
889 if (s->handshake_func == 0)
890 {
891 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
892 return -1;
893 }
894
895 if ((s != NULL) && !SSL_in_init(s))
896 return(s->method->ssl_shutdown(s));
897 else
898 return(1);
899 }
900
901int SSL_renegotiate(SSL *s)
902 {
903 if (s->new_session == 0)
904 {
905 s->new_session=1;
906 }
907 return(s->method->ssl_renegotiate(s));
908 }
909
910int SSL_renegotiate_pending(SSL *s)
911 {
912 /* becomes true when negotiation is requested;
913 * false again once a handshake has finished */
914 return (s->new_session != 0);
915 }
916
917long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
918 {
919 long l;
920
921 switch (cmd)
922 {
923 case SSL_CTRL_GET_READ_AHEAD:
924 return(s->read_ahead);
925 case SSL_CTRL_SET_READ_AHEAD:
926 l=s->read_ahead;
927 s->read_ahead=larg;
928 return(l);
929
930 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
931 s->msg_callback_arg = parg;
932 return 1;
933
934 case SSL_CTRL_OPTIONS:
935 return(s->options|=larg);
936 case SSL_CTRL_MODE:
937 return(s->mode|=larg);
938 case SSL_CTRL_GET_MAX_CERT_LIST:
939 return(s->max_cert_list);
940 case SSL_CTRL_SET_MAX_CERT_LIST:
941 l=s->max_cert_list;
942 s->max_cert_list=larg;
943 return(l);
944 default:
945 return(s->method->ssl_ctrl(s,cmd,larg,parg));
946 }
947 }
948
949long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
950 {
951 switch(cmd)
952 {
953 case SSL_CTRL_SET_MSG_CALLBACK:
954 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
955 return 1;
956
957 default:
958 return(s->method->ssl_callback_ctrl(s,cmd,fp));
959 }
960 }
961
962struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
963 {
964 return ctx->sessions;
965 }
966
967long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
968 {
969 long l;
970
971 switch (cmd)
972 {
973 case SSL_CTRL_GET_READ_AHEAD:
974 return(ctx->read_ahead);
975 case SSL_CTRL_SET_READ_AHEAD:
976 l=ctx->read_ahead;
977 ctx->read_ahead=larg;
978 return(l);
979
980 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
981 ctx->msg_callback_arg = parg;
982 return 1;
983
984 case SSL_CTRL_GET_MAX_CERT_LIST:
985 return(ctx->max_cert_list);
986 case SSL_CTRL_SET_MAX_CERT_LIST:
987 l=ctx->max_cert_list;
988 ctx->max_cert_list=larg;
989 return(l);
990
991 case SSL_CTRL_SET_SESS_CACHE_SIZE:
992 l=ctx->session_cache_size;
993 ctx->session_cache_size=larg;
994 return(l);
995 case SSL_CTRL_GET_SESS_CACHE_SIZE:
996 return(ctx->session_cache_size);
997 case SSL_CTRL_SET_SESS_CACHE_MODE:
998 l=ctx->session_cache_mode;
999 ctx->session_cache_mode=larg;
1000 return(l);
1001 case SSL_CTRL_GET_SESS_CACHE_MODE:
1002 return(ctx->session_cache_mode);
1003
1004 case SSL_CTRL_SESS_NUMBER:
1005 return(ctx->sessions->num_items);
1006 case SSL_CTRL_SESS_CONNECT:
1007 return(ctx->stats.sess_connect);
1008 case SSL_CTRL_SESS_CONNECT_GOOD:
1009 return(ctx->stats.sess_connect_good);
1010 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1011 return(ctx->stats.sess_connect_renegotiate);
1012 case SSL_CTRL_SESS_ACCEPT:
1013 return(ctx->stats.sess_accept);
1014 case SSL_CTRL_SESS_ACCEPT_GOOD:
1015 return(ctx->stats.sess_accept_good);
1016 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1017 return(ctx->stats.sess_accept_renegotiate);
1018 case SSL_CTRL_SESS_HIT:
1019 return(ctx->stats.sess_hit);
1020 case SSL_CTRL_SESS_CB_HIT:
1021 return(ctx->stats.sess_cb_hit);
1022 case SSL_CTRL_SESS_MISSES:
1023 return(ctx->stats.sess_miss);
1024 case SSL_CTRL_SESS_TIMEOUTS:
1025 return(ctx->stats.sess_timeout);
1026 case SSL_CTRL_SESS_CACHE_FULL:
1027 return(ctx->stats.sess_cache_full);
1028 case SSL_CTRL_OPTIONS:
1029 return(ctx->options|=larg);
1030 case SSL_CTRL_MODE:
1031 return(ctx->mode|=larg);
1032 default:
1033 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1034 }
1035 }
1036
1037long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1038 {
1039 switch(cmd)
1040 {
1041 case SSL_CTRL_SET_MSG_CALLBACK:
1042 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1043 return 1;
1044
1045 default:
1046 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1047 }
1048 }
1049
1050int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1051 {
1052 long l;
1053
1054 l=a->id-b->id;
1055 if (l == 0L)
1056 return(0);
1057 else
1058 return((l > 0)?1:-1);
1059 }
1060
1061int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1062 const SSL_CIPHER * const *bp)
1063 {
1064 long l;
1065
1066 l=(*ap)->id-(*bp)->id;
1067 if (l == 0L)
1068 return(0);
1069 else
1070 return((l > 0)?1:-1);
1071 }
1072
1073/** return a STACK of the ciphers available for the SSL and in order of
1074 * preference */
1075STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1076 {
1077 if (s != NULL)
1078 {
1079 if (s->cipher_list != NULL)
1080 {
1081 return(s->cipher_list);
1082 }
1083 else if ((s->ctx != NULL) &&
1084 (s->ctx->cipher_list != NULL))
1085 {
1086 return(s->ctx->cipher_list);
1087 }
1088 }
1089 return(NULL);
1090 }
1091
1092/** return a STACK of the ciphers available for the SSL and in order of
1093 * algorithm id */
1094STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1095 {
1096 if (s != NULL)
1097 {
1098 if (s->cipher_list_by_id != NULL)
1099 {
1100 return(s->cipher_list_by_id);
1101 }
1102 else if ((s->ctx != NULL) &&
1103 (s->ctx->cipher_list_by_id != NULL))
1104 {
1105 return(s->ctx->cipher_list_by_id);
1106 }
1107 }
1108 return(NULL);
1109 }
1110
1111/** The old interface to get the same thing as SSL_get_ciphers() */
1112const char *SSL_get_cipher_list(const SSL *s,int n)
1113 {
1114 SSL_CIPHER *c;
1115 STACK_OF(SSL_CIPHER) *sk;
1116
1117 if (s == NULL) return(NULL);
1118 sk=SSL_get_ciphers(s);
1119 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1120 return(NULL);
1121 c=sk_SSL_CIPHER_value(sk,n);
1122 if (c == NULL) return(NULL);
1123 return(c->name);
1124 }
1125
1126/** specify the ciphers to be used by default by the SSL_CTX */
1127int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1128 {
1129 STACK_OF(SSL_CIPHER) *sk;
1130
1131 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1132 &ctx->cipher_list_by_id,str);
1133 /* ssl_create_cipher_list may return an empty stack if it
1134 * was unable to find a cipher matching the given rule string
1135 * (for example if the rule string specifies a cipher which
1136 * has been disabled). This is not an error as far as
1137 * ssl_create_cipher_list is concerned, and hence
1138 * ctx->cipher_list and ctx->cipher_list_by_id has been
1139 * updated. */
1140 if (sk == NULL)
1141 return 0;
1142 else if (sk_SSL_CIPHER_num(sk) == 0)
1143 {
1144 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1145 return 0;
1146 }
1147 return 1;
1148 }
1149
1150/** specify the ciphers to be used by the SSL */
1151int SSL_set_cipher_list(SSL *s,const char *str)
1152 {
1153 STACK_OF(SSL_CIPHER) *sk;
1154
1155 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1156 &s->cipher_list_by_id,str);
1157 /* see comment in SSL_CTX_set_cipher_list */
1158 if (sk == NULL)
1159 return 0;
1160 else if (sk_SSL_CIPHER_num(sk) == 0)
1161 {
1162 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1163 return 0;
1164 }
1165 return 1;
1166 }
1167
1168/* works well for SSLv2, not so good for SSLv3 */
1169char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1170 {
1171 char *end;
1172 STACK_OF(SSL_CIPHER) *sk;
1173 SSL_CIPHER *c;
1174 size_t curlen = 0;
1175 int i;
1176
1177 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1178 (len < 2))
1179 return(NULL);
1180
1181 sk=s->session->ciphers;
1182 buf[0] = '\0';
1183 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1184 {
1185 c=sk_SSL_CIPHER_value(sk,i);
1186 end = buf + curlen;
1187 if (strlcat(buf, c->name, len) >= len ||
1188 (curlen = strlcat(buf, ":", len)) >= len)
1189 {
1190 /* remove truncated cipher from list */
1191 *end = '\0';
1192 break;
1193 }
1194 }
1195 /* remove trailing colon */
1196 if ((end = strrchr(buf, ':')) != NULL)
1197 *end = '\0';
1198 return(buf);
1199 }
1200
1201int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1202 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1203 {
1204 int i,j=0;
1205 SSL_CIPHER *c;
1206 unsigned char *q;
1207#ifndef OPENSSL_NO_KRB5
1208 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1209#endif /* OPENSSL_NO_KRB5 */
1210
1211 if (sk == NULL) return(0);
1212 q=p;
1213
1214 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1215 {
1216 c=sk_SSL_CIPHER_value(sk,i);
1217#ifndef OPENSSL_NO_KRB5
1218 if ((c->algorithms & SSL_KRB5) && nokrb5)
1219 continue;
1220#endif /* OPENSSL_NO_KRB5 */
1221
1222 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1223 p+=j;
1224 }
1225 return(p-q);
1226 }
1227
1228STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1229 STACK_OF(SSL_CIPHER) **skp)
1230 {
1231 SSL_CIPHER *c;
1232 STACK_OF(SSL_CIPHER) *sk;
1233 int i,n;
1234
1235 n=ssl_put_cipher_by_char(s,NULL,NULL);
1236 if ((num%n) != 0)
1237 {
1238 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1239 return(NULL);
1240 }
1241 if ((skp == NULL) || (*skp == NULL))
1242 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1243 else
1244 {
1245 sk= *skp;
1246 sk_SSL_CIPHER_zero(sk);
1247 }
1248
1249 for (i=0; i<num; i+=n)
1250 {
1251 c=ssl_get_cipher_by_char(s,p);
1252 p+=n;
1253 if (c != NULL)
1254 {
1255 if (!sk_SSL_CIPHER_push(sk,c))
1256 {
1257 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1258 goto err;
1259 }
1260 }
1261 }
1262
1263 if (skp != NULL)
1264 *skp=sk;
1265 return(sk);
1266err:
1267 if ((skp == NULL) || (*skp == NULL))
1268 sk_SSL_CIPHER_free(sk);
1269 return(NULL);
1270 }
1271
1272unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1273 {
1274 unsigned long l;
1275
1276 l=(unsigned long)
1277 ((unsigned int) a->session_id[0] )|
1278 ((unsigned int) a->session_id[1]<< 8L)|
1279 ((unsigned long)a->session_id[2]<<16L)|
1280 ((unsigned long)a->session_id[3]<<24L);
1281 return(l);
1282 }
1283
1284/* NB: If this function (or indeed the hash function which uses a sort of
1285 * coarser function than this one) is changed, ensure
1286 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1287 * able to construct an SSL_SESSION that will collide with any existing session
1288 * with a matching session ID. */
1289int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1290 {
1291 if (a->ssl_version != b->ssl_version)
1292 return(1);
1293 if (a->session_id_length != b->session_id_length)
1294 return(1);
1295 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1296 }
1297
1298/* These wrapper functions should remain rather than redeclaring
1299 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1300 * variable. The reason is that the functions aren't static, they're exposed via
1301 * ssl.h. */
1302static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1303static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1304
1305SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1306 {
1307 SSL_CTX *ret=NULL;
1308
1309 if (meth == NULL)
1310 {
1311 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1312 return(NULL);
1313 }
1314
1315#ifdef OPENSSL_FIPS
1316 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1317 {
1318 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1319 return NULL;
1320 }
1321#endif
1322
1323 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1324 {
1325 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1326 goto err;
1327 }
1328 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1329 if (ret == NULL)
1330 goto err;
1331
1332 memset(ret,0,sizeof(SSL_CTX));
1333
1334 ret->method=meth;
1335
1336 ret->cert_store=NULL;
1337 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1338 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1339 ret->session_cache_head=NULL;
1340 ret->session_cache_tail=NULL;
1341
1342 /* We take the system default */
1343 ret->session_timeout=meth->get_timeout();
1344
1345 ret->new_session_cb=0;
1346 ret->remove_session_cb=0;
1347 ret->get_session_cb=0;
1348 ret->generate_session_id=0;
1349
1350 memset((char *)&ret->stats,0,sizeof(ret->stats));
1351
1352 ret->references=1;
1353 ret->quiet_shutdown=0;
1354
1355/* ret->cipher=NULL;*/
1356/* ret->s2->challenge=NULL;
1357 ret->master_key=NULL;
1358 ret->key_arg=NULL;
1359 ret->s2->conn_id=NULL; */
1360
1361 ret->info_callback=NULL;
1362
1363 ret->app_verify_callback=0;
1364 ret->app_verify_arg=NULL;
1365
1366 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1367 ret->read_ahead=0;
1368 ret->msg_callback=0;
1369 ret->msg_callback_arg=NULL;
1370 ret->verify_mode=SSL_VERIFY_NONE;
1371 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1372 ret->sid_ctx_length=0;
1373 ret->default_verify_callback=NULL;
1374 if ((ret->cert=ssl_cert_new()) == NULL)
1375 goto err;
1376
1377 ret->default_passwd_callback=0;
1378 ret->default_passwd_callback_userdata=NULL;
1379 ret->client_cert_cb=0;
1380
1381 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1382 LHASH_COMP_FN(SSL_SESSION_cmp));
1383 if (ret->sessions == NULL) goto err;
1384 ret->cert_store=X509_STORE_new();
1385 if (ret->cert_store == NULL) goto err;
1386
1387 ssl_create_cipher_list(ret->method,
1388 &ret->cipher_list,&ret->cipher_list_by_id,
1389 SSL_DEFAULT_CIPHER_LIST);
1390 if (ret->cipher_list == NULL
1391 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1392 {
1393 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1394 goto err2;
1395 }
1396
1397 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1398 {
1399 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1400 goto err2;
1401 }
1402 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1403 {
1404 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1405 goto err2;
1406 }
1407 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1408 {
1409 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1410 goto err2;
1411 }
1412
1413 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1414 goto err;
1415
1416 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1417
1418 ret->extra_certs=NULL;
1419 ret->comp_methods=SSL_COMP_get_compression_methods();
1420
1421 return(ret);
1422err:
1423 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1424err2:
1425 if (ret != NULL) SSL_CTX_free(ret);
1426 return(NULL);
1427 }
1428
1429#if 0
1430static void SSL_COMP_free(SSL_COMP *comp)
1431 { OPENSSL_free(comp); }
1432#endif
1433
1434void SSL_CTX_free(SSL_CTX *a)
1435 {
1436 int i;
1437
1438 if (a == NULL) return;
1439
1440 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1441#ifdef REF_PRINT
1442 REF_PRINT("SSL_CTX",a);
1443#endif
1444 if (i > 0) return;
1445#ifdef REF_CHECK
1446 if (i < 0)
1447 {
1448 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1449 abort(); /* ok */
1450 }
1451#endif
1452
1453 /*
1454 * Free internal session cache. However: the remove_cb() may reference
1455 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1456 * after the sessions were flushed.
1457 * As the ex_data handling routines might also touch the session cache,
1458 * the most secure solution seems to be: empty (flush) the cache, then
1459 * free ex_data, then finally free the cache.
1460 * (See ticket [openssl.org #212].)
1461 */
1462 if (a->sessions != NULL)
1463 SSL_CTX_flush_sessions(a,0);
1464
1465 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1466
1467 if (a->sessions != NULL)
1468 lh_free(a->sessions);
1469
1470 if (a->cert_store != NULL)
1471 X509_STORE_free(a->cert_store);
1472 if (a->cipher_list != NULL)
1473 sk_SSL_CIPHER_free(a->cipher_list);
1474 if (a->cipher_list_by_id != NULL)
1475 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1476 if (a->cert != NULL)
1477 ssl_cert_free(a->cert);
1478 if (a->client_CA != NULL)
1479 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1480 if (a->extra_certs != NULL)
1481 sk_X509_pop_free(a->extra_certs,X509_free);
1482#if 0 /* This should never be done, since it removes a global database */
1483 if (a->comp_methods != NULL)
1484 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1485#else
1486 a->comp_methods = NULL;
1487#endif
1488 OPENSSL_free(a);
1489 }
1490
1491void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1492 {
1493 ctx->default_passwd_callback=cb;
1494 }
1495
1496void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1497 {
1498 ctx->default_passwd_callback_userdata=u;
1499 }
1500
1501void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1502 {
1503 ctx->app_verify_callback=cb;
1504 ctx->app_verify_arg=arg;
1505 }
1506
1507void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1508 {
1509 ctx->verify_mode=mode;
1510 ctx->default_verify_callback=cb;
1511 }
1512
1513void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1514 {
1515 ctx->verify_depth=depth;
1516 }
1517
1518void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1519 {
1520 CERT_PKEY *cpk;
1521 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1522 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1523 int rsa_tmp_export,dh_tmp_export,kl;
1524 unsigned long mask,emask;
1525
1526 if (c == NULL) return;
1527
1528 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1529
1530#ifndef OPENSSL_NO_RSA
1531 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1532 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1533 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1534#else
1535 rsa_tmp=rsa_tmp_export=0;
1536#endif
1537#ifndef OPENSSL_NO_DH
1538 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1539 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1540 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1541#else
1542 dh_tmp=dh_tmp_export=0;
1543#endif
1544
1545 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1546 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1547 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1548 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1549 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1550 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1551 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1552 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1553 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1554 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1555 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1556/* FIX THIS EAY EAY EAY */
1557 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1558 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1559
1560 mask=0;
1561 emask=0;
1562
1563#ifdef CIPHER_DEBUG
1564 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1565 rsa_tmp,rsa_tmp_export,dh_tmp,
1566 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1567#endif
1568
1569 if (rsa_enc || (rsa_tmp && rsa_sign))
1570 mask|=SSL_kRSA;
1571 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1572 emask|=SSL_kRSA;
1573
1574#if 0
1575 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1576 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1577 (rsa_enc || rsa_sign || dsa_sign))
1578 mask|=SSL_kEDH;
1579 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1580 (rsa_enc || rsa_sign || dsa_sign))
1581 emask|=SSL_kEDH;
1582#endif
1583
1584 if (dh_tmp_export)
1585 emask|=SSL_kEDH;
1586
1587 if (dh_tmp)
1588 mask|=SSL_kEDH;
1589
1590 if (dh_rsa) mask|=SSL_kDHr;
1591 if (dh_rsa_export) emask|=SSL_kDHr;
1592
1593 if (dh_dsa) mask|=SSL_kDHd;
1594 if (dh_dsa_export) emask|=SSL_kDHd;
1595
1596 if (rsa_enc || rsa_sign)
1597 {
1598 mask|=SSL_aRSA;
1599 emask|=SSL_aRSA;
1600 }
1601
1602 if (dsa_sign)
1603 {
1604 mask|=SSL_aDSS;
1605 emask|=SSL_aDSS;
1606 }
1607
1608 mask|=SSL_aNULL;
1609 emask|=SSL_aNULL;
1610
1611#ifndef OPENSSL_NO_KRB5
1612 mask|=SSL_kKRB5|SSL_aKRB5;
1613 emask|=SSL_kKRB5|SSL_aKRB5;
1614#endif
1615
1616 c->mask=mask;
1617 c->export_mask=emask;
1618 c->valid=1;
1619 }
1620
1621/* THIS NEEDS CLEANING UP */
1622X509 *ssl_get_server_send_cert(SSL *s)
1623 {
1624 unsigned long alg,mask,kalg;
1625 CERT *c;
1626 int i,is_export;
1627
1628 c=s->cert;
1629 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1630 alg=s->s3->tmp.new_cipher->algorithms;
1631 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1632 mask=is_export?c->export_mask:c->mask;
1633 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1634
1635 if (kalg & SSL_kDHr)
1636 i=SSL_PKEY_DH_RSA;
1637 else if (kalg & SSL_kDHd)
1638 i=SSL_PKEY_DH_DSA;
1639 else if (kalg & SSL_aDSS)
1640 i=SSL_PKEY_DSA_SIGN;
1641 else if (kalg & SSL_aRSA)
1642 {
1643 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1644 i=SSL_PKEY_RSA_SIGN;
1645 else
1646 i=SSL_PKEY_RSA_ENC;
1647 }
1648 else if (kalg & SSL_aKRB5)
1649 {
1650 /* VRS something else here? */
1651 return(NULL);
1652 }
1653 else /* if (kalg & SSL_aNULL) */
1654 {
1655 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1656 return(NULL);
1657 }
1658 if (c->pkeys[i].x509 == NULL) return(NULL);
1659 return(c->pkeys[i].x509);
1660 }
1661
1662EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1663 {
1664 unsigned long alg;
1665 CERT *c;
1666
1667 alg=cipher->algorithms;
1668 c=s->cert;
1669
1670 if ((alg & SSL_aDSS) &&
1671 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1672 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1673 else if (alg & SSL_aRSA)
1674 {
1675 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1676 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1677 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1678 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1679 else
1680 return(NULL);
1681 }
1682 else /* if (alg & SSL_aNULL) */
1683 {
1684 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1685 return(NULL);
1686 }
1687 }
1688
1689void ssl_update_cache(SSL *s,int mode)
1690 {
1691 int i;
1692
1693 /* If the session_id_length is 0, we are not supposed to cache it,
1694 * and it would be rather hard to do anyway :-) */
1695 if (s->session->session_id_length == 0) return;
1696
1697 i=s->ctx->session_cache_mode;
1698 if ((i & mode) && (!s->hit)
1699 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1700 || SSL_CTX_add_session(s->ctx,s->session))
1701 && (s->ctx->new_session_cb != NULL))
1702 {
1703 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1704 if (!s->ctx->new_session_cb(s,s->session))
1705 SSL_SESSION_free(s->session);
1706 }
1707
1708 /* auto flush every 255 connections */
1709 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1710 ((i & mode) == mode))
1711 {
1712 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1713 ?s->ctx->stats.sess_connect_good
1714 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1715 {
1716 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
1717 }
1718 }
1719 }
1720
1721SSL_METHOD *SSL_get_ssl_method(SSL *s)
1722 {
1723 return(s->method);
1724 }
1725
1726int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1727 {
1728 int conn= -1;
1729 int ret=1;
1730
1731 if (s->method != meth)
1732 {
1733 if (s->handshake_func != NULL)
1734 conn=(s->handshake_func == s->method->ssl_connect);
1735
1736 if (s->method->version == meth->version)
1737 s->method=meth;
1738 else
1739 {
1740 s->method->ssl_free(s);
1741 s->method=meth;
1742 ret=s->method->ssl_new(s);
1743 }
1744
1745 if (conn == 1)
1746 s->handshake_func=meth->ssl_connect;
1747 else if (conn == 0)
1748 s->handshake_func=meth->ssl_accept;
1749 }
1750 return(ret);
1751 }
1752
1753int SSL_get_error(const SSL *s,int i)
1754 {
1755 int reason;
1756 unsigned long l;
1757 BIO *bio;
1758
1759 if (i > 0) return(SSL_ERROR_NONE);
1760
1761 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1762 * etc, where we do encode the error */
1763 if ((l=ERR_peek_error()) != 0)
1764 {
1765 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1766 return(SSL_ERROR_SYSCALL);
1767 else
1768 return(SSL_ERROR_SSL);
1769 }
1770
1771 if ((i < 0) && SSL_want_read(s))
1772 {
1773 bio=SSL_get_rbio(s);
1774 if (BIO_should_read(bio))
1775 return(SSL_ERROR_WANT_READ);
1776 else if (BIO_should_write(bio))
1777 /* This one doesn't make too much sense ... We never try
1778 * to write to the rbio, and an application program where
1779 * rbio and wbio are separate couldn't even know what it
1780 * should wait for.
1781 * However if we ever set s->rwstate incorrectly
1782 * (so that we have SSL_want_read(s) instead of
1783 * SSL_want_write(s)) and rbio and wbio *are* the same,
1784 * this test works around that bug; so it might be safer
1785 * to keep it. */
1786 return(SSL_ERROR_WANT_WRITE);
1787 else if (BIO_should_io_special(bio))
1788 {
1789 reason=BIO_get_retry_reason(bio);
1790 if (reason == BIO_RR_CONNECT)
1791 return(SSL_ERROR_WANT_CONNECT);
1792 else if (reason == BIO_RR_ACCEPT)
1793 return(SSL_ERROR_WANT_ACCEPT);
1794 else
1795 return(SSL_ERROR_SYSCALL); /* unknown */
1796 }
1797 }
1798
1799 if ((i < 0) && SSL_want_write(s))
1800 {
1801 bio=SSL_get_wbio(s);
1802 if (BIO_should_write(bio))
1803 return(SSL_ERROR_WANT_WRITE);
1804 else if (BIO_should_read(bio))
1805 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1806 return(SSL_ERROR_WANT_READ);
1807 else if (BIO_should_io_special(bio))
1808 {
1809 reason=BIO_get_retry_reason(bio);
1810 if (reason == BIO_RR_CONNECT)
1811 return(SSL_ERROR_WANT_CONNECT);
1812 else if (reason == BIO_RR_ACCEPT)
1813 return(SSL_ERROR_WANT_ACCEPT);
1814 else
1815 return(SSL_ERROR_SYSCALL);
1816 }
1817 }
1818 if ((i < 0) && SSL_want_x509_lookup(s))
1819 {
1820 return(SSL_ERROR_WANT_X509_LOOKUP);
1821 }
1822
1823 if (i == 0)
1824 {
1825 if (s->version == SSL2_VERSION)
1826 {
1827 /* assume it is the socket being closed */
1828 return(SSL_ERROR_ZERO_RETURN);
1829 }
1830 else
1831 {
1832 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1833 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1834 return(SSL_ERROR_ZERO_RETURN);
1835 }
1836 }
1837 return(SSL_ERROR_SYSCALL);
1838 }
1839
1840int SSL_do_handshake(SSL *s)
1841 {
1842 int ret=1;
1843
1844 if (s->handshake_func == NULL)
1845 {
1846 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1847 return(-1);
1848 }
1849
1850 s->method->ssl_renegotiate_check(s);
1851
1852 if (SSL_in_init(s) || SSL_in_before(s))
1853 {
1854 ret=s->handshake_func(s);
1855 }
1856 return(ret);
1857 }
1858
1859/* For the next 2 functions, SSL_clear() sets shutdown and so
1860 * one of these calls will reset it */
1861void SSL_set_accept_state(SSL *s)
1862 {
1863 s->server=1;
1864 s->shutdown=0;
1865 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1866 s->handshake_func=s->method->ssl_accept;
1867 /* clear the current cipher */
1868 ssl_clear_cipher_ctx(s);
1869 }
1870
1871void SSL_set_connect_state(SSL *s)
1872 {
1873 s->server=0;
1874 s->shutdown=0;
1875 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1876 s->handshake_func=s->method->ssl_connect;
1877 /* clear the current cipher */
1878 ssl_clear_cipher_ctx(s);
1879 }
1880
1881int ssl_undefined_function(SSL *s)
1882 {
1883 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1884 return(0);
1885 }
1886
1887int ssl_undefined_const_function(const SSL *s)
1888 {
1889 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1890 return(0);
1891 }
1892
1893SSL_METHOD *ssl_bad_method(int ver)
1894 {
1895 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1896 return(NULL);
1897 }
1898
1899const char *SSL_get_version(const SSL *s)
1900 {
1901 if (s->version == TLS1_VERSION)
1902 return("TLSv1");
1903 else if (s->version == SSL3_VERSION)
1904 return("SSLv3");
1905 else if (s->version == SSL2_VERSION)
1906 return("SSLv2");
1907 else
1908 return("unknown");
1909 }
1910
1911SSL *SSL_dup(SSL *s)
1912 {
1913 STACK_OF(X509_NAME) *sk;
1914 X509_NAME *xn;
1915 SSL *ret;
1916 int i;
1917
1918 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1919 return(NULL);
1920
1921 ret->version = s->version;
1922 ret->type = s->type;
1923 ret->method = s->method;
1924
1925 if (s->session != NULL)
1926 {
1927 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1928 SSL_copy_session_id(ret,s);
1929 }
1930 else
1931 {
1932 /* No session has been established yet, so we have to expect
1933 * that s->cert or ret->cert will be changed later --
1934 * they should not both point to the same object,
1935 * and thus we can't use SSL_copy_session_id. */
1936
1937 ret->method->ssl_free(ret);
1938 ret->method = s->method;
1939 ret->method->ssl_new(ret);
1940
1941 if (s->cert != NULL)
1942 {
1943 if (ret->cert != NULL)
1944 {
1945 ssl_cert_free(ret->cert);
1946 }
1947 ret->cert = ssl_cert_dup(s->cert);
1948 if (ret->cert == NULL)
1949 goto err;
1950 }
1951
1952 SSL_set_session_id_context(ret,
1953 s->sid_ctx, s->sid_ctx_length);
1954 }
1955
1956 ret->options=s->options;
1957 ret->mode=s->mode;
1958 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
1959 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1960 ret->msg_callback = s->msg_callback;
1961 ret->msg_callback_arg = s->msg_callback_arg;
1962 SSL_set_verify(ret,SSL_get_verify_mode(s),
1963 SSL_get_verify_callback(s));
1964 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1965 ret->generate_session_id = s->generate_session_id;
1966
1967 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1968
1969 ret->debug=s->debug;
1970
1971 /* copy app data, a little dangerous perhaps */
1972 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
1973 goto err;
1974
1975 /* setup rbio, and wbio */
1976 if (s->rbio != NULL)
1977 {
1978 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1979 goto err;
1980 }
1981 if (s->wbio != NULL)
1982 {
1983 if (s->wbio != s->rbio)
1984 {
1985 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1986 goto err;
1987 }
1988 else
1989 ret->wbio=ret->rbio;
1990 }
1991 ret->rwstate = s->rwstate;
1992 ret->in_handshake = s->in_handshake;
1993 ret->handshake_func = s->handshake_func;
1994 ret->server = s->server;
1995 ret->new_session = s->new_session;
1996 ret->quiet_shutdown = s->quiet_shutdown;
1997 ret->shutdown=s->shutdown;
1998 ret->state=s->state; /* SSL_dup does not really work at any state, though */
1999 ret->rstate=s->rstate;
2000 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2001 ret->hit=s->hit;
2002 ret->purpose=s->purpose;
2003 ret->trust=s->trust;
2004
2005 /* dup the cipher_list and cipher_list_by_id stacks */
2006 if (s->cipher_list != NULL)
2007 {
2008 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2009 goto err;
2010 }
2011 if (s->cipher_list_by_id != NULL)
2012 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2013 == NULL)
2014 goto err;
2015
2016 /* Dup the client_CA list */
2017 if (s->client_CA != NULL)
2018 {
2019 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2020 ret->client_CA=sk;
2021 for (i=0; i<sk_X509_NAME_num(sk); i++)
2022 {
2023 xn=sk_X509_NAME_value(sk,i);
2024 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2025 {
2026 X509_NAME_free(xn);
2027 goto err;
2028 }
2029 }
2030 }
2031
2032 if (0)
2033 {
2034err:
2035 if (ret != NULL) SSL_free(ret);
2036 ret=NULL;
2037 }
2038 return(ret);
2039 }
2040
2041void ssl_clear_cipher_ctx(SSL *s)
2042 {
2043 if (s->enc_read_ctx != NULL)
2044 {
2045 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2046 OPENSSL_free(s->enc_read_ctx);
2047 s->enc_read_ctx=NULL;
2048 }
2049 if (s->enc_write_ctx != NULL)
2050 {
2051 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2052 OPENSSL_free(s->enc_write_ctx);
2053 s->enc_write_ctx=NULL;
2054 }
2055 if (s->expand != NULL)
2056 {
2057 COMP_CTX_free(s->expand);
2058 s->expand=NULL;
2059 }
2060 if (s->compress != NULL)
2061 {
2062 COMP_CTX_free(s->compress);
2063 s->compress=NULL;
2064 }
2065 }
2066
2067/* Fix this function so that it takes an optional type parameter */
2068X509 *SSL_get_certificate(const SSL *s)
2069 {
2070 if (s->cert != NULL)
2071 return(s->cert->key->x509);
2072 else
2073 return(NULL);
2074 }
2075
2076/* Fix this function so that it takes an optional type parameter */
2077EVP_PKEY *SSL_get_privatekey(SSL *s)
2078 {
2079 if (s->cert != NULL)
2080 return(s->cert->key->privatekey);
2081 else
2082 return(NULL);
2083 }
2084
2085SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2086 {
2087 if ((s->session != NULL) && (s->session->cipher != NULL))
2088 return(s->session->cipher);
2089 return(NULL);
2090 }
2091
2092int ssl_init_wbio_buffer(SSL *s,int push)
2093 {
2094 BIO *bbio;
2095
2096 if (s->bbio == NULL)
2097 {
2098 bbio=BIO_new(BIO_f_buffer());
2099 if (bbio == NULL) return(0);
2100 s->bbio=bbio;
2101 }
2102 else
2103 {
2104 bbio=s->bbio;
2105 if (s->bbio == s->wbio)
2106 s->wbio=BIO_pop(s->wbio);
2107 }
2108 (void)BIO_reset(bbio);
2109/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2110 if (!BIO_set_read_buffer_size(bbio,1))
2111 {
2112 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2113 return(0);
2114 }
2115 if (push)
2116 {
2117 if (s->wbio != bbio)
2118 s->wbio=BIO_push(bbio,s->wbio);
2119 }
2120 else
2121 {
2122 if (s->wbio == bbio)
2123 s->wbio=BIO_pop(bbio);
2124 }
2125 return(1);
2126 }
2127
2128void ssl_free_wbio_buffer(SSL *s)
2129 {
2130 if (s->bbio == NULL) return;
2131
2132 if (s->bbio == s->wbio)
2133 {
2134 /* remove buffering */
2135 s->wbio=BIO_pop(s->wbio);
2136#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2137 assert(s->wbio != NULL);
2138#endif
2139 }
2140 BIO_free(s->bbio);
2141 s->bbio=NULL;
2142 }
2143
2144void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2145 {
2146 ctx->quiet_shutdown=mode;
2147 }
2148
2149int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2150 {
2151 return(ctx->quiet_shutdown);
2152 }
2153
2154void SSL_set_quiet_shutdown(SSL *s,int mode)
2155 {
2156 s->quiet_shutdown=mode;
2157 }
2158
2159int SSL_get_quiet_shutdown(const SSL *s)
2160 {
2161 return(s->quiet_shutdown);
2162 }
2163
2164void SSL_set_shutdown(SSL *s,int mode)
2165 {
2166 s->shutdown=mode;
2167 }
2168
2169int SSL_get_shutdown(const SSL *s)
2170 {
2171 return(s->shutdown);
2172 }
2173
2174int SSL_version(const SSL *s)
2175 {
2176 return(s->version);
2177 }
2178
2179SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2180 {
2181 return(ssl->ctx);
2182 }
2183
2184#ifndef OPENSSL_NO_STDIO
2185int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2186 {
2187 return(X509_STORE_set_default_paths(ctx->cert_store));
2188 }
2189
2190int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2191 const char *CApath)
2192 {
2193 int r;
2194 r=X509_STORE_load_locations(ctx->cert_store,CAfile,CApath);
2195 return r;
2196 }
2197#endif
2198
2199void SSL_set_info_callback(SSL *ssl,
2200 void (*cb)(const SSL *ssl,int type,int val))
2201 {
2202 ssl->info_callback=cb;
2203 }
2204
2205void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,int type,int val)
2206 {
2207 return ssl->info_callback;
2208 }
2209
2210int SSL_state(const SSL *ssl)
2211 {
2212 return(ssl->state);
2213 }
2214
2215void SSL_set_verify_result(SSL *ssl,long arg)
2216 {
2217 ssl->verify_result=arg;
2218 }
2219
2220long SSL_get_verify_result(const SSL *ssl)
2221 {
2222 return(ssl->verify_result);
2223 }
2224
2225int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2226 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2227 {
2228 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2229 new_func, dup_func, free_func);
2230 }
2231
2232int SSL_set_ex_data(SSL *s,int idx,void *arg)
2233 {
2234 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2235 }
2236
2237void *SSL_get_ex_data(const SSL *s,int idx)
2238 {
2239 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2240 }
2241
2242int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2243 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2244 {
2245 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2246 new_func, dup_func, free_func);
2247 }
2248
2249int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2250 {
2251 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2252 }
2253
2254void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2255 {
2256 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2257 }
2258
2259int ssl_ok(SSL *s)
2260 {
2261 return(1);
2262 }
2263
2264X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2265 {
2266 return(ctx->cert_store);
2267 }
2268
2269void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2270 {
2271 if (ctx->cert_store != NULL)
2272 X509_STORE_free(ctx->cert_store);
2273 ctx->cert_store=store;
2274 }
2275
2276int SSL_want(const SSL *s)
2277 {
2278 return(s->rwstate);
2279 }
2280
2281/*!
2282 * \brief Set the callback for generating temporary RSA keys.
2283 * \param ctx the SSL context.
2284 * \param cb the callback
2285 */
2286
2287#ifndef OPENSSL_NO_RSA
2288void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2289 int is_export,
2290 int keylength))
2291 {
2292 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2293 }
2294
2295void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2296 int is_export,
2297 int keylength))
2298 {
2299 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2300 }
2301#endif
2302
2303#ifdef DOXYGEN
2304/*!
2305 * \brief The RSA temporary key callback function.
2306 * \param ssl the SSL session.
2307 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2308 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2309 * of the required key in bits.
2310 * \return the temporary RSA key.
2311 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2312 */
2313
2314RSA *cb(SSL *ssl,int is_export,int keylength)
2315 {}
2316#endif
2317
2318/*!
2319 * \brief Set the callback for generating temporary DH keys.
2320 * \param ctx the SSL context.
2321 * \param dh the callback
2322 */
2323
2324#ifndef OPENSSL_NO_DH
2325void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2326 int keylength))
2327 {
2328 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2329 }
2330
2331void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2332 int keylength))
2333 {
2334 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2335 }
2336#endif
2337
2338
2339void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2340 {
2341 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2342 }
2343void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2344 {
2345 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2346 }
2347
2348
2349
2350#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2351#include "../crypto/bio/bss_file.c"
2352#endif
2353
2354IMPLEMENT_STACK_OF(SSL_CIPHER)
2355IMPLEMENT_STACK_OF(SSL_COMP)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-10-26 23:04:21 +0000