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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
128OPENSSL_GLOBAL SSL3_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/* XXXX */
1134 return((sk == NULL)?0:1);
1135 }
1136
1137/** specify the ciphers to be used by the SSL */
1138int SSL_set_cipher_list(SSL *s,const char *str)
1139 {
1140 STACK_OF(SSL_CIPHER) *sk;
1141
1142 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1143 &s->cipher_list_by_id,str);
1144/* XXXX */
1145 return((sk == NULL)?0:1);
1146 }
1147
1148/* works well for SSLv2, not so good for SSLv3 */
1149char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1150 {
1151 char *p;
1152 const char *cp;
1153 STACK_OF(SSL_CIPHER) *sk;
1154 SSL_CIPHER *c;
1155 int i;
1156
1157 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1158 (len < 2))
1159 return(NULL);
1160
1161 p=buf;
1162 sk=s->session->ciphers;
1163 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1164 {
1165 /* Decrement for either the ':' or a '\0' */
1166 len--;
1167 c=sk_SSL_CIPHER_value(sk,i);
1168 for (cp=c->name; *cp; )
1169 {
1170 if (len-- == 0)
1171 {
1172 *p='\0';
1173 return(buf);
1174 }
1175 else
1176 *(p++)= *(cp++);
1177 }
1178 *(p++)=':';
1179 }
1180 p[-1]='\0';
1181 return(buf);
1182 }
1183
1184int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1185 {
1186 int i,j=0;
1187 SSL_CIPHER *c;
1188 unsigned char *q;
1189#ifndef OPENSSL_NO_KRB5
1190 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1191#endif /* OPENSSL_NO_KRB5 */
1192
1193 if (sk == NULL) return(0);
1194 q=p;
1195
1196 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1197 {
1198 c=sk_SSL_CIPHER_value(sk,i);
1199#ifndef OPENSSL_NO_KRB5
1200 if ((c->algorithms & SSL_KRB5) && nokrb5)
1201 continue;
1202#endif /* OPENSSL_NO_KRB5 */
1203 j=ssl_put_cipher_by_char(s,c,p);
1204 p+=j;
1205 }
1206 return(p-q);
1207 }
1208
1209STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1210 STACK_OF(SSL_CIPHER) **skp)
1211 {
1212 SSL_CIPHER *c;
1213 STACK_OF(SSL_CIPHER) *sk;
1214 int i,n;
1215
1216 n=ssl_put_cipher_by_char(s,NULL,NULL);
1217 if ((num%n) != 0)
1218 {
1219 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1220 return(NULL);
1221 }
1222 if ((skp == NULL) || (*skp == NULL))
1223 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1224 else
1225 {
1226 sk= *skp;
1227 sk_SSL_CIPHER_zero(sk);
1228 }
1229
1230 for (i=0; i<num; i+=n)
1231 {
1232 c=ssl_get_cipher_by_char(s,p);
1233 p+=n;
1234 if (c != NULL)
1235 {
1236 if (!sk_SSL_CIPHER_push(sk,c))
1237 {
1238 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1239 goto err;
1240 }
1241 }
1242 }
1243
1244 if (skp != NULL)
1245 *skp=sk;
1246 return(sk);
1247err:
1248 if ((skp == NULL) || (*skp == NULL))
1249 sk_SSL_CIPHER_free(sk);
1250 return(NULL);
1251 }
1252
1253unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1254 {
1255 unsigned long l;
1256
1257 l=(unsigned long)
1258 ((unsigned int) a->session_id[0] )|
1259 ((unsigned int) a->session_id[1]<< 8L)|
1260 ((unsigned long)a->session_id[2]<<16L)|
1261 ((unsigned long)a->session_id[3]<<24L);
1262 return(l);
1263 }
1264
1265/* NB: If this function (or indeed the hash function which uses a sort of
1266 * coarser function than this one) is changed, ensure
1267 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1268 * able to construct an SSL_SESSION that will collide with any existing session
1269 * with a matching session ID. */
1270int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1271 {
1272 if (a->ssl_version != b->ssl_version)
1273 return(1);
1274 if (a->session_id_length != b->session_id_length)
1275 return(1);
1276 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1277 }
1278
1279/* These wrapper functions should remain rather than redeclaring
1280 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1281 * variable. The reason is that the functions aren't static, they're exposed via
1282 * ssl.h. */
1283static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1284static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1285
1286SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1287 {
1288 SSL_CTX *ret=NULL;
1289
1290 if (meth == NULL)
1291 {
1292 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1293 return(NULL);
1294 }
1295
1296#ifdef OPENSSL_FIPS
1297 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1298 {
1299 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1300 return NULL;
1301 }
1302#endif
1303
1304 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1305 {
1306 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1307 goto err;
1308 }
1309 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1310 if (ret == NULL)
1311 goto err;
1312
1313 memset(ret,0,sizeof(SSL_CTX));
1314
1315 ret->method=meth;
1316
1317 ret->cert_store=NULL;
1318 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1319 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1320 ret->session_cache_head=NULL;
1321 ret->session_cache_tail=NULL;
1322
1323 /* We take the system default */
1324 ret->session_timeout=meth->get_timeout();
1325
1326 ret->new_session_cb=0;
1327 ret->remove_session_cb=0;
1328 ret->get_session_cb=0;
1329 ret->generate_session_id=0;
1330
1331 memset((char *)&ret->stats,0,sizeof(ret->stats));
1332
1333 ret->references=1;
1334 ret->quiet_shutdown=0;
1335
1336/* ret->cipher=NULL;*/
1337/* ret->s2->challenge=NULL;
1338 ret->master_key=NULL;
1339 ret->key_arg=NULL;
1340 ret->s2->conn_id=NULL; */
1341
1342 ret->info_callback=NULL;
1343
1344 ret->app_verify_callback=0;
1345 ret->app_verify_arg=NULL;
1346
1347 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1348 ret->read_ahead=0;
1349 ret->msg_callback=0;
1350 ret->msg_callback_arg=NULL;
1351 ret->verify_mode=SSL_VERIFY_NONE;
1352 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1353 ret->sid_ctx_length=0;
1354 ret->default_verify_callback=NULL;
1355 if ((ret->cert=ssl_cert_new()) == NULL)
1356 goto err;
1357
1358 ret->default_passwd_callback=0;
1359 ret->default_passwd_callback_userdata=NULL;
1360 ret->client_cert_cb=0;
1361
1362 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1363 LHASH_COMP_FN(SSL_SESSION_cmp));
1364 if (ret->sessions == NULL) goto err;
1365 ret->cert_store=X509_STORE_new();
1366 if (ret->cert_store == NULL) goto err;
1367
1368 ssl_create_cipher_list(ret->method,
1369 &ret->cipher_list,&ret->cipher_list_by_id,
1370 SSL_DEFAULT_CIPHER_LIST);
1371 if (ret->cipher_list == NULL
1372 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1373 {
1374 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1375 goto err2;
1376 }
1377
1378 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1379 {
1380 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1381 goto err2;
1382 }
1383 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1384 {
1385 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1386 goto err2;
1387 }
1388 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1389 {
1390 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1391 goto err2;
1392 }
1393
1394 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1395 goto err;
1396
1397 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1398
1399 ret->extra_certs=NULL;
1400 ret->comp_methods=SSL_COMP_get_compression_methods();
1401
1402 return(ret);
1403err:
1404 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1405err2:
1406 if (ret != NULL) SSL_CTX_free(ret);
1407 return(NULL);
1408 }
1409
1410#if 0
1411static void SSL_COMP_free(SSL_COMP *comp)
1412 { OPENSSL_free(comp); }
1413#endif
1414
1415void SSL_CTX_free(SSL_CTX *a)
1416 {
1417 int i;
1418
1419 if (a == NULL) return;
1420
1421 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1422#ifdef REF_PRINT
1423 REF_PRINT("SSL_CTX",a);
1424#endif
1425 if (i > 0) return;
1426#ifdef REF_CHECK
1427 if (i < 0)
1428 {
1429 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1430 abort(); /* ok */
1431 }
1432#endif
1433
1434 /*
1435 * Free internal session cache. However: the remove_cb() may reference
1436 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1437 * after the sessions were flushed.
1438 * As the ex_data handling routines might also touch the session cache,
1439 * the most secure solution seems to be: empty (flush) the cache, then
1440 * free ex_data, then finally free the cache.
1441 * (See ticket [openssl.org #212].)
1442 */
1443 if (a->sessions != NULL)
1444 SSL_CTX_flush_sessions(a,0);
1445
1446 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1447
1448 if (a->sessions != NULL)
1449 lh_free(a->sessions);
1450
1451 if (a->cert_store != NULL)
1452 X509_STORE_free(a->cert_store);
1453 if (a->cipher_list != NULL)
1454 sk_SSL_CIPHER_free(a->cipher_list);
1455 if (a->cipher_list_by_id != NULL)
1456 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1457 if (a->cert != NULL)
1458 ssl_cert_free(a->cert);
1459 if (a->client_CA != NULL)
1460 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1461 if (a->extra_certs != NULL)
1462 sk_X509_pop_free(a->extra_certs,X509_free);
1463#if 0 /* This should never be done, since it removes a global database */
1464 if (a->comp_methods != NULL)
1465 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1466#else
1467 a->comp_methods = NULL;
1468#endif
1469 OPENSSL_free(a);
1470 }
1471
1472void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1473 {
1474 ctx->default_passwd_callback=cb;
1475 }
1476
1477void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1478 {
1479 ctx->default_passwd_callback_userdata=u;
1480 }
1481
1482void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1483 {
1484 ctx->app_verify_callback=cb;
1485 ctx->app_verify_arg=arg;
1486 }
1487
1488void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1489 {
1490 ctx->verify_mode=mode;
1491 ctx->default_verify_callback=cb;
1492 }
1493
1494void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1495 {
1496 ctx->verify_depth=depth;
1497 }
1498
1499void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1500 {
1501 CERT_PKEY *cpk;
1502 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1503 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1504 int rsa_tmp_export,dh_tmp_export,kl;
1505 unsigned long mask,emask;
1506
1507 if (c == NULL) return;
1508
1509 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1510
1511#ifndef OPENSSL_NO_RSA
1512 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1513 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1514 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1515#else
1516 rsa_tmp=rsa_tmp_export=0;
1517#endif
1518#ifndef OPENSSL_NO_DH
1519 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1520 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1521 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1522#else
1523 dh_tmp=dh_tmp_export=0;
1524#endif
1525
1526 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1527 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1528 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1529 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1530 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1531 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1532 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1533 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1534 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1535 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1536 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1537/* FIX THIS EAY EAY EAY */
1538 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1539 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1540
1541 mask=0;
1542 emask=0;
1543
1544#ifdef CIPHER_DEBUG
1545 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1546 rsa_tmp,rsa_tmp_export,dh_tmp,
1547 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1548#endif
1549
1550 if (rsa_enc || (rsa_tmp && rsa_sign))
1551 mask|=SSL_kRSA;
1552 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1553 emask|=SSL_kRSA;
1554
1555#if 0
1556 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1557 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1558 (rsa_enc || rsa_sign || dsa_sign))
1559 mask|=SSL_kEDH;
1560 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1561 (rsa_enc || rsa_sign || dsa_sign))
1562 emask|=SSL_kEDH;
1563#endif
1564
1565 if (dh_tmp_export)
1566 emask|=SSL_kEDH;
1567
1568 if (dh_tmp)
1569 mask|=SSL_kEDH;
1570
1571 if (dh_rsa) mask|=SSL_kDHr;
1572 if (dh_rsa_export) emask|=SSL_kDHr;
1573
1574 if (dh_dsa) mask|=SSL_kDHd;
1575 if (dh_dsa_export) emask|=SSL_kDHd;
1576
1577 if (rsa_enc || rsa_sign)
1578 {
1579 mask|=SSL_aRSA;
1580 emask|=SSL_aRSA;
1581 }
1582
1583 if (dsa_sign)
1584 {
1585 mask|=SSL_aDSS;
1586 emask|=SSL_aDSS;
1587 }
1588
1589 mask|=SSL_aNULL;
1590 emask|=SSL_aNULL;
1591
1592#ifndef OPENSSL_NO_KRB5
1593 mask|=SSL_kKRB5|SSL_aKRB5;
1594 emask|=SSL_kKRB5|SSL_aKRB5;
1595#endif
1596
1597 c->mask=mask;
1598 c->export_mask=emask;
1599 c->valid=1;
1600 }
1601
1602/* THIS NEEDS CLEANING UP */
1603X509 *ssl_get_server_send_cert(SSL *s)
1604 {
1605 unsigned long alg,mask,kalg;
1606 CERT *c;
1607 int i,is_export;
1608
1609 c=s->cert;
1610 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1611 alg=s->s3->tmp.new_cipher->algorithms;
1612 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1613 mask=is_export?c->export_mask:c->mask;
1614 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1615
1616 if (kalg & SSL_kDHr)
1617 i=SSL_PKEY_DH_RSA;
1618 else if (kalg & SSL_kDHd)
1619 i=SSL_PKEY_DH_DSA;
1620 else if (kalg & SSL_aDSS)
1621 i=SSL_PKEY_DSA_SIGN;
1622 else if (kalg & SSL_aRSA)
1623 {
1624 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1625 i=SSL_PKEY_RSA_SIGN;
1626 else
1627 i=SSL_PKEY_RSA_ENC;
1628 }
1629 else if (kalg & SSL_aKRB5)
1630 {
1631 /* VRS something else here? */
1632 return(NULL);
1633 }
1634 else /* if (kalg & SSL_aNULL) */
1635 {
1636 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1637 return(NULL);
1638 }
1639 if (c->pkeys[i].x509 == NULL) return(NULL);
1640 return(c->pkeys[i].x509);
1641 }
1642
1643EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1644 {
1645 unsigned long alg;
1646 CERT *c;
1647
1648 alg=cipher->algorithms;
1649 c=s->cert;
1650
1651 if ((alg & SSL_aDSS) &&
1652 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1653 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1654 else if (alg & SSL_aRSA)
1655 {
1656 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1657 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1658 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1659 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1660 else
1661 return(NULL);
1662 }
1663 else /* if (alg & SSL_aNULL) */
1664 {
1665 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1666 return(NULL);
1667 }
1668 }
1669
1670void ssl_update_cache(SSL *s,int mode)
1671 {
1672 int i;
1673
1674 /* If the session_id_length is 0, we are not supposed to cache it,
1675 * and it would be rather hard to do anyway :-) */
1676 if (s->session->session_id_length == 0) return;
1677
1678 i=s->ctx->session_cache_mode;
1679 if ((i & mode) && (!s->hit)
1680 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1681 || SSL_CTX_add_session(s->ctx,s->session))
1682 && (s->ctx->new_session_cb != NULL))
1683 {
1684 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1685 if (!s->ctx->new_session_cb(s,s->session))
1686 SSL_SESSION_free(s->session);
1687 }
1688
1689 /* auto flush every 255 connections */
1690 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1691 ((i & mode) == mode))
1692 {
1693 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1694 ?s->ctx->stats.sess_connect_good
1695 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1696 {
1697 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1698 }
1699 }
1700 }
1701
1702SSL_METHOD *SSL_get_ssl_method(SSL *s)
1703 {
1704 return(s->method);
1705 }
1706
1707int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1708 {
1709 int conn= -1;
1710 int ret=1;
1711
1712 if (s->method != meth)
1713 {
1714 if (s->handshake_func != NULL)
1715 conn=(s->handshake_func == s->method->ssl_connect);
1716
1717 if (s->method->version == meth->version)
1718 s->method=meth;
1719 else
1720 {
1721 s->method->ssl_free(s);
1722 s->method=meth;
1723 ret=s->method->ssl_new(s);
1724 }
1725
1726 if (conn == 1)
1727 s->handshake_func=meth->ssl_connect;
1728 else if (conn == 0)
1729 s->handshake_func=meth->ssl_accept;
1730 }
1731 return(ret);
1732 }
1733
1734int SSL_get_error(const SSL *s,int i)
1735 {
1736 int reason;
1737 unsigned long l;
1738 BIO *bio;
1739
1740 if (i > 0) return(SSL_ERROR_NONE);
1741
1742 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1743 * etc, where we do encode the error */
1744 if ((l=ERR_peek_error()) != 0)
1745 {
1746 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1747 return(SSL_ERROR_SYSCALL);
1748 else
1749 return(SSL_ERROR_SSL);
1750 }
1751
1752 if ((i < 0) && SSL_want_read(s))
1753 {
1754 bio=SSL_get_rbio(s);
1755 if (BIO_should_read(bio))
1756 return(SSL_ERROR_WANT_READ);
1757 else if (BIO_should_write(bio))
1758 /* This one doesn't make too much sense ... We never try
1759 * to write to the rbio, and an application program where
1760 * rbio and wbio are separate couldn't even know what it
1761 * should wait for.
1762 * However if we ever set s->rwstate incorrectly
1763 * (so that we have SSL_want_read(s) instead of
1764 * SSL_want_write(s)) and rbio and wbio *are* the same,
1765 * this test works around that bug; so it might be safer
1766 * to keep it. */
1767 return(SSL_ERROR_WANT_WRITE);
1768 else if (BIO_should_io_special(bio))
1769 {
1770 reason=BIO_get_retry_reason(bio);
1771 if (reason == BIO_RR_CONNECT)
1772 return(SSL_ERROR_WANT_CONNECT);
1773 else if (reason == BIO_RR_ACCEPT)
1774 return(SSL_ERROR_WANT_ACCEPT);
1775 else
1776 return(SSL_ERROR_SYSCALL); /* unknown */
1777 }
1778 }
1779
1780 if ((i < 0) && SSL_want_write(s))
1781 {
1782 bio=SSL_get_wbio(s);
1783 if (BIO_should_write(bio))
1784 return(SSL_ERROR_WANT_WRITE);
1785 else if (BIO_should_read(bio))
1786 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1787 return(SSL_ERROR_WANT_READ);
1788 else if (BIO_should_io_special(bio))
1789 {
1790 reason=BIO_get_retry_reason(bio);
1791 if (reason == BIO_RR_CONNECT)
1792 return(SSL_ERROR_WANT_CONNECT);
1793 else if (reason == BIO_RR_ACCEPT)
1794 return(SSL_ERROR_WANT_ACCEPT);
1795 else
1796 return(SSL_ERROR_SYSCALL);
1797 }
1798 }
1799 if ((i < 0) && SSL_want_x509_lookup(s))
1800 {
1801 return(SSL_ERROR_WANT_X509_LOOKUP);
1802 }
1803
1804 if (i == 0)
1805 {
1806 if (s->version == SSL2_VERSION)
1807 {
1808 /* assume it is the socket being closed */
1809 return(SSL_ERROR_ZERO_RETURN);
1810 }
1811 else
1812 {
1813 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1814 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1815 return(SSL_ERROR_ZERO_RETURN);
1816 }
1817 }
1818 return(SSL_ERROR_SYSCALL);
1819 }
1820
1821int SSL_do_handshake(SSL *s)
1822 {
1823 int ret=1;
1824
1825 if (s->handshake_func == NULL)
1826 {
1827 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1828 return(-1);
1829 }
1830
1831 s->method->ssl_renegotiate_check(s);
1832
1833 if (SSL_in_init(s) || SSL_in_before(s))
1834 {
1835 ret=s->handshake_func(s);
1836 }
1837 return(ret);
1838 }
1839
1840/* For the next 2 functions, SSL_clear() sets shutdown and so
1841 * one of these calls will reset it */
1842void SSL_set_accept_state(SSL *s)
1843 {
1844 s->server=1;
1845 s->shutdown=0;
1846 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1847 s->handshake_func=s->method->ssl_accept;
1848 /* clear the current cipher */
1849 ssl_clear_cipher_ctx(s);
1850 }
1851
1852void SSL_set_connect_state(SSL *s)
1853 {
1854 s->server=0;
1855 s->shutdown=0;
1856 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1857 s->handshake_func=s->method->ssl_connect;
1858 /* clear the current cipher */
1859 ssl_clear_cipher_ctx(s);
1860 }
1861
1862int ssl_undefined_function(SSL *s)
1863 {
1864 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1865 return(0);
1866 }
1867
1868int ssl_undefined_const_function(const SSL *s)
1869 {
1870 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1871 return(0);
1872 }
1873
1874SSL_METHOD *ssl_bad_method(int ver)
1875 {
1876 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1877 return(NULL);
1878 }
1879
1880const char *SSL_get_version(const SSL *s)
1881 {
1882 if (s->version == TLS1_VERSION)
1883 return("TLSv1");
1884 else if (s->version == SSL3_VERSION)
1885 return("SSLv3");
1886 else if (s->version == SSL2_VERSION)
1887 return("SSLv2");
1888 else
1889 return("unknown");
1890 }
1891
1892SSL *SSL_dup(SSL *s)
1893 {
1894 STACK_OF(X509_NAME) *sk;
1895 X509_NAME *xn;
1896 SSL *ret;
1897 int i;
1898
1899 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1900 return(NULL);
1901
1902 ret->version = s->version;
1903 ret->type = s->type;
1904 ret->method = s->method;
1905
1906 if (s->session != NULL)
1907 {
1908 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1909 SSL_copy_session_id(ret,s);
1910 }
1911 else
1912 {
1913 /* No session has been established yet, so we have to expect
1914 * that s->cert or ret->cert will be changed later --
1915 * they should not both point to the same object,
1916 * and thus we can't use SSL_copy_session_id. */
1917
1918 ret->method->ssl_free(ret);
1919 ret->method = s->method;
1920 ret->method->ssl_new(ret);
1921
1922 if (s->cert != NULL)
1923 {
1924 if (ret->cert != NULL)
1925 {
1926 ssl_cert_free(ret->cert);
1927 }
1928 ret->cert = ssl_cert_dup(s->cert);
1929 if (ret->cert == NULL)
1930 goto err;
1931 }
1932
1933 SSL_set_session_id_context(ret,
1934 s->sid_ctx, s->sid_ctx_length);
1935 }
1936
1937 ret->options=s->options;
1938 ret->mode=s->mode;
1939 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
1940 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1941 ret->msg_callback = s->msg_callback;
1942 ret->msg_callback_arg = s->msg_callback_arg;
1943 SSL_set_verify(ret,SSL_get_verify_mode(s),
1944 SSL_get_verify_callback(s));
1945 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1946 ret->generate_session_id = s->generate_session_id;
1947
1948 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1949
1950 ret->debug=s->debug;
1951
1952 /* copy app data, a little dangerous perhaps */
1953 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
1954 goto err;
1955
1956 /* setup rbio, and wbio */
1957 if (s->rbio != NULL)
1958 {
1959 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1960 goto err;
1961 }
1962 if (s->wbio != NULL)
1963 {
1964 if (s->wbio != s->rbio)
1965 {
1966 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1967 goto err;
1968 }
1969 else
1970 ret->wbio=ret->rbio;
1971 }
1972 ret->rwstate = s->rwstate;
1973 ret->in_handshake = s->in_handshake;
1974 ret->handshake_func = s->handshake_func;
1975 ret->server = s->server;
1976 ret->new_session = s->new_session;
1977 ret->quiet_shutdown = s->quiet_shutdown;
1978 ret->shutdown=s->shutdown;
1979 ret->state=s->state; /* SSL_dup does not really work at any state, though */
1980 ret->rstate=s->rstate;
1981 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
1982 ret->hit=s->hit;
1983 ret->purpose=s->purpose;
1984 ret->trust=s->trust;
1985
1986 /* dup the cipher_list and cipher_list_by_id stacks */
1987 if (s->cipher_list != NULL)
1988 {
1989 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1990 goto err;
1991 }
1992 if (s->cipher_list_by_id != NULL)
1993 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1994 == NULL)
1995 goto err;
1996
1997 /* Dup the client_CA list */
1998 if (s->client_CA != NULL)
1999 {
2000 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2001 ret->client_CA=sk;
2002 for (i=0; i<sk_X509_NAME_num(sk); i++)
2003 {
2004 xn=sk_X509_NAME_value(sk,i);
2005 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2006 {
2007 X509_NAME_free(xn);
2008 goto err;
2009 }
2010 }
2011 }
2012
2013 if (0)
2014 {
2015err:
2016 if (ret != NULL) SSL_free(ret);
2017 ret=NULL;
2018 }
2019 return(ret);
2020 }
2021
2022void ssl_clear_cipher_ctx(SSL *s)
2023 {
2024 if (s->enc_read_ctx != NULL)
2025 {
2026 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2027 OPENSSL_free(s->enc_read_ctx);
2028 s->enc_read_ctx=NULL;
2029 }
2030 if (s->enc_write_ctx != NULL)
2031 {
2032 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2033 OPENSSL_free(s->enc_write_ctx);
2034 s->enc_write_ctx=NULL;
2035 }
2036 if (s->expand != NULL)
2037 {
2038 COMP_CTX_free(s->expand);
2039 s->expand=NULL;
2040 }
2041 if (s->compress != NULL)
2042 {
2043 COMP_CTX_free(s->compress);
2044 s->compress=NULL;
2045 }
2046 }
2047
2048/* Fix this function so that it takes an optional type parameter */
2049X509 *SSL_get_certificate(const SSL *s)
2050 {
2051 if (s->cert != NULL)
2052 return(s->cert->key->x509);
2053 else
2054 return(NULL);
2055 }
2056
2057/* Fix this function so that it takes an optional type parameter */
2058EVP_PKEY *SSL_get_privatekey(SSL *s)
2059 {
2060 if (s->cert != NULL)
2061 return(s->cert->key->privatekey);
2062 else
2063 return(NULL);
2064 }
2065
2066SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2067 {
2068 if ((s->session != NULL) && (s->session->cipher != NULL))
2069 return(s->session->cipher);
2070 return(NULL);
2071 }
2072
2073int ssl_init_wbio_buffer(SSL *s,int push)
2074 {
2075 BIO *bbio;
2076
2077 if (s->bbio == NULL)
2078 {
2079 bbio=BIO_new(BIO_f_buffer());
2080 if (bbio == NULL) return(0);
2081 s->bbio=bbio;
2082 }
2083 else
2084 {
2085 bbio=s->bbio;
2086 if (s->bbio == s->wbio)
2087 s->wbio=BIO_pop(s->wbio);
2088 }
2089 (void)BIO_reset(bbio);
2090/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2091 if (!BIO_set_read_buffer_size(bbio,1))
2092 {
2093 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2094 return(0);
2095 }
2096 if (push)
2097 {
2098 if (s->wbio != bbio)
2099 s->wbio=BIO_push(bbio,s->wbio);
2100 }
2101 else
2102 {
2103 if (s->wbio == bbio)
2104 s->wbio=BIO_pop(bbio);
2105 }
2106 return(1);
2107 }
2108
2109void ssl_free_wbio_buffer(SSL *s)
2110 {
2111 if (s->bbio == NULL) return;
2112
2113 if (s->bbio == s->wbio)
2114 {
2115 /* remove buffering */
2116 s->wbio=BIO_pop(s->wbio);
2117#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2118 assert(s->wbio != NULL);
2119#endif
2120 }
2121 BIO_free(s->bbio);
2122 s->bbio=NULL;
2123 }
2124
2125void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2126 {
2127 ctx->quiet_shutdown=mode;
2128 }
2129
2130int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2131 {
2132 return(ctx->quiet_shutdown);
2133 }
2134
2135void SSL_set_quiet_shutdown(SSL *s,int mode)
2136 {
2137 s->quiet_shutdown=mode;
2138 }
2139
2140int SSL_get_quiet_shutdown(const SSL *s)
2141 {
2142 return(s->quiet_shutdown);
2143 }
2144
2145void SSL_set_shutdown(SSL *s,int mode)
2146 {
2147 s->shutdown=mode;
2148 }
2149
2150int SSL_get_shutdown(const SSL *s)
2151 {
2152 return(s->shutdown);
2153 }
2154
2155int SSL_version(const SSL *s)
2156 {
2157 return(s->version);
2158 }
2159
2160SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2161 {
2162 return(ssl->ctx);
2163 }
2164
2165#ifndef OPENSSL_NO_STDIO
2166int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2167 {
2168 return(X509_STORE_set_default_paths(ctx->cert_store));
2169 }
2170
2171int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2172 const char *CApath)
2173 {
2174 int r;
2175 r=X509_STORE_load_locations(ctx->cert_store,CAfile,CApath);
2176 return r;
2177 }
2178#endif
2179
2180void SSL_set_info_callback(SSL *ssl,
2181 void (*cb)(const SSL *ssl,int type,int val))
2182 {
2183 ssl->info_callback=cb;
2184 }
2185
2186void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,int type,int val)
2187 {
2188 return ssl->info_callback;
2189 }
2190
2191int SSL_state(const SSL *ssl)
2192 {
2193 return(ssl->state);
2194 }
2195
2196void SSL_set_verify_result(SSL *ssl,long arg)
2197 {
2198 ssl->verify_result=arg;
2199 }
2200
2201long SSL_get_verify_result(const SSL *ssl)
2202 {
2203 return(ssl->verify_result);
2204 }
2205
2206int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2207 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2208 {
2209 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2210 new_func, dup_func, free_func);
2211 }
2212
2213int SSL_set_ex_data(SSL *s,int idx,void *arg)
2214 {
2215 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2216 }
2217
2218void *SSL_get_ex_data(const SSL *s,int idx)
2219 {
2220 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2221 }
2222
2223int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2224 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2225 {
2226 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2227 new_func, dup_func, free_func);
2228 }
2229
2230int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2231 {
2232 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2233 }
2234
2235void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2236 {
2237 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2238 }
2239
2240int ssl_ok(SSL *s)
2241 {
2242 return(1);
2243 }
2244
2245X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2246 {
2247 return(ctx->cert_store);
2248 }
2249
2250void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2251 {
2252 if (ctx->cert_store != NULL)
2253 X509_STORE_free(ctx->cert_store);
2254 ctx->cert_store=store;
2255 }
2256
2257int SSL_want(const SSL *s)
2258 {
2259 return(s->rwstate);
2260 }
2261
2262/*!
2263 * \brief Set the callback for generating temporary RSA keys.
2264 * \param ctx the SSL context.
2265 * \param cb the callback
2266 */
2267
2268#ifndef OPENSSL_NO_RSA
2269void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2270 int is_export,
2271 int keylength))
2272 {
2273 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2274 }
2275
2276void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2277 int is_export,
2278 int keylength))
2279 {
2280 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2281 }
2282#endif
2283
2284#ifdef DOXYGEN
2285/*!
2286 * \brief The RSA temporary key callback function.
2287 * \param ssl the SSL session.
2288 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2289 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2290 * of the required key in bits.
2291 * \return the temporary RSA key.
2292 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2293 */
2294
2295RSA *cb(SSL *ssl,int is_export,int keylength)
2296 {}
2297#endif
2298
2299/*!
2300 * \brief Set the callback for generating temporary DH keys.
2301 * \param ctx the SSL context.
2302 * \param dh the callback
2303 */
2304
2305#ifndef OPENSSL_NO_DH
2306void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2307 int keylength))
2308 {
2309 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2310 }
2311
2312void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2313 int keylength))
2314 {
2315 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2316 }
2317#endif
2318
2319
2320void 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))
2321 {
2322 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2323 }
2324void 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))
2325 {
2326 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2327 }
2328
2329
2330
2331#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2332#include "../crypto/bio/bss_file.c"
2333#endif
2334
2335IMPLEMENT_STACK_OF(SSL_CIPHER)
2336IMPLEMENT_STACK_OF(SSL_COMP)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-08 08:18:50 +0000