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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
125const char *SSL_version_str=OPENSSL_VERSION_TEXT;
126
127OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
128 /* evil casts, but these functions are only called if there's a library bug */
129 (int (*)(SSL *,int))ssl_undefined_function,
130 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
131 ssl_undefined_function,
132 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
133 (int (*)(SSL*, int))ssl_undefined_function,
134 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
135 };
136
137int SSL_clear(SSL *s)
138 {
139
140 if (s->method == NULL)
141 {
142 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
143 return(0);
144 }
145
146 if (ssl_clear_bad_session(s))
147 {
148 SSL_SESSION_free(s->session);
149 s->session=NULL;
150 }
151
152 s->error=0;
153 s->hit=0;
154 s->shutdown=0;
155
156#if 0 /* Disabled since version 1.10 of this file (early return not
157 * needed because SSL_clear is not called when doing renegotiation) */
158 /* This is set if we are doing dynamic renegotiation so keep
159 * the old cipher. It is sort of a SSL_clear_lite :-) */
160 if (s->new_session) return(1);
161#else
162 if (s->new_session)
163 {
164 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
165 return 0;
166 }
167#endif
168
169 s->type=0;
170
171 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
172
173 s->version=s->method->version;
174 s->client_version=s->version;
175 s->rwstate=SSL_NOTHING;
176 s->rstate=SSL_ST_READ_HEADER;
177#if 0
178 s->read_ahead=s->ctx->read_ahead;
179#endif
180
181 if (s->init_buf != NULL)
182 {
183 BUF_MEM_free(s->init_buf);
184 s->init_buf=NULL;
185 }
186
187 ssl_clear_cipher_ctx(s);
188
189 s->first_packet=0;
190
191#if 1
192 /* Check to see if we were changed into a different method, if
193 * so, revert back if we are not doing session-id reuse. */
194 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
195 {
196 s->method->ssl_free(s);
197 s->method=s->ctx->method;
198 if (!s->method->ssl_new(s))
199 return(0);
200 }
201 else
202#endif
203 s->method->ssl_clear(s);
204 return(1);
205 }
206
207/** Used to change an SSL_CTXs default SSL method type */
208int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
209 {
210 STACK_OF(SSL_CIPHER) *sk;
211
212 ctx->method=meth;
213
214 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
215 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
216 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
217 {
218 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
219 return(0);
220 }
221 return(1);
222 }
223
224SSL *SSL_new(SSL_CTX *ctx)
225 {
226 SSL *s;
227
228 if (ctx == NULL)
229 {
230 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
231 return(NULL);
232 }
233 if (ctx->method == NULL)
234 {
235 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
236 return(NULL);
237 }
238
239 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
240 if (s == NULL) goto err;
241 memset(s,0,sizeof(SSL));
242
243#ifndef OPENSSL_NO_KRB5
244 s->kssl_ctx = kssl_ctx_new();
245#endif /* OPENSSL_NO_KRB5 */
246
247 s->options=ctx->options;
248 s->mode=ctx->mode;
249 s->max_cert_list=ctx->max_cert_list;
250
251 if (ctx->cert != NULL)
252 {
253 /* Earlier library versions used to copy the pointer to
254 * the CERT, not its contents; only when setting new
255 * parameters for the per-SSL copy, ssl_cert_new would be
256 * called (and the direct reference to the per-SSL_CTX
257 * settings would be lost, but those still were indirectly
258 * accessed for various purposes, and for that reason they
259 * used to be known as s->ctx->default_cert).
260 * Now we don't look at the SSL_CTX's CERT after having
261 * duplicated it once. */
262
263 s->cert = ssl_cert_dup(ctx->cert);
264 if (s->cert == NULL)
265 goto err;
266 }
267 else
268 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
269
270 s->read_ahead=ctx->read_ahead;
271 s->msg_callback=ctx->msg_callback;
272 s->msg_callback_arg=ctx->msg_callback_arg;
273 s->verify_mode=ctx->verify_mode;
274 s->verify_depth=ctx->verify_depth;
275 s->sid_ctx_length=ctx->sid_ctx_length;
276 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
277 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
278 s->verify_callback=ctx->default_verify_callback;
279 s->generate_session_id=ctx->generate_session_id;
280 s->purpose = ctx->purpose;
281 s->trust = ctx->trust;
282 s->quiet_shutdown=ctx->quiet_shutdown;
283
284 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
285 s->ctx=ctx;
286
287 s->verify_result=X509_V_OK;
288
289 s->method=ctx->method;
290
291 if (!s->method->ssl_new(s))
292 goto err;
293
294 s->references=1;
295 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
296
297 SSL_clear(s);
298
299 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
300
301 return(s);
302err:
303 if (s != NULL)
304 {
305 if (s->cert != NULL)
306 ssl_cert_free(s->cert);
307 if (s->ctx != NULL)
308 SSL_CTX_free(s->ctx); /* decrement reference count */
309 OPENSSL_free(s);
310 }
311 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
312 return(NULL);
313 }
314
315int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
316 unsigned int sid_ctx_len)
317 {
318 if(sid_ctx_len > sizeof ctx->sid_ctx)
319 {
320 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
321 return 0;
322 }
323 ctx->sid_ctx_length=sid_ctx_len;
324 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
325
326 return 1;
327 }
328
329int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
330 unsigned int sid_ctx_len)
331 {
332 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
333 {
334 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
335 return 0;
336 }
337 ssl->sid_ctx_length=sid_ctx_len;
338 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
339
340 return 1;
341 }
342
343int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
344 {
345 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
346 ctx->generate_session_id = cb;
347 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
348 return 1;
349 }
350
351int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
352 {
353 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
354 ssl->generate_session_id = cb;
355 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
356 return 1;
357 }
358
359int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
360 unsigned int id_len)
361 {
362 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
363 * we can "construct" a session to give us the desired check - ie. to
364 * find if there's a session in the hash table that would conflict with
365 * any new session built out of this id/id_len and the ssl_version in
366 * use by this SSL. */
367 SSL_SESSION r, *p;
368
369 if(id_len > sizeof r.session_id)
370 return 0;
371
372 r.ssl_version = ssl->version;
373 r.session_id_length = id_len;
374 memcpy(r.session_id, id, id_len);
375 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
376 * callback is calling us to check the uniqueness of a shorter ID, it
377 * must be compared as a padded-out ID because that is what it will be
378 * converted to when the callback has finished choosing it. */
379 if((r.ssl_version == SSL2_VERSION) &&
380 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
381 {
382 memset(r.session_id + id_len, 0,
383 SSL2_SSL_SESSION_ID_LENGTH - id_len);
384 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
385 }
386
387 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
388 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
389 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
390 return (p != NULL);
391 }
392
393int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
394 {
395 return X509_PURPOSE_set(&s->purpose, purpose);
396 }
397
398int SSL_set_purpose(SSL *s, int purpose)
399 {
400 return X509_PURPOSE_set(&s->purpose, purpose);
401 }
402
403int SSL_CTX_set_trust(SSL_CTX *s, int trust)
404 {
405 return X509_TRUST_set(&s->trust, trust);
406 }
407
408int SSL_set_trust(SSL *s, int trust)
409 {
410 return X509_TRUST_set(&s->trust, trust);
411 }
412
413void SSL_free(SSL *s)
414 {
415 int i;
416
417 if(s == NULL)
418 return;
419
420 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
421#ifdef REF_PRINT
422 REF_PRINT("SSL",s);
423#endif
424 if (i > 0) return;
425#ifdef REF_CHECK
426 if (i < 0)
427 {
428 fprintf(stderr,"SSL_free, bad reference count\n");
429 abort(); /* ok */
430 }
431#endif
432
433 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
434
435 if (s->bbio != NULL)
436 {
437 /* If the buffering BIO is in place, pop it off */
438 if (s->bbio == s->wbio)
439 {
440 s->wbio=BIO_pop(s->wbio);
441 }
442 BIO_free(s->bbio);
443 s->bbio=NULL;
444 }
445 if (s->rbio != NULL)
446 BIO_free_all(s->rbio);
447 if ((s->wbio != NULL) && (s->wbio != s->rbio))
448 BIO_free_all(s->wbio);
449
450 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
451
452 /* add extra stuff */
453 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
454 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
455
456 /* Make the next call work :-) */
457 if (s->session != NULL)
458 {
459 ssl_clear_bad_session(s);
460 SSL_SESSION_free(s->session);
461 }
462
463 ssl_clear_cipher_ctx(s);
464
465 if (s->cert != NULL) ssl_cert_free(s->cert);
466 /* Free up if allocated */
467
468 if (s->ctx) SSL_CTX_free(s->ctx);
469
470 if (s->client_CA != NULL)
471 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
472
473 if (s->method != NULL) s->method->ssl_free(s);
474
475 OPENSSL_free(s);
476 }
477
478void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
479 {
480 /* If the output buffering BIO is still in place, remove it
481 */
482 if (s->bbio != NULL)
483 {
484 if (s->wbio == s->bbio)
485 {
486 s->wbio=s->wbio->next_bio;
487 s->bbio->next_bio=NULL;
488 }
489 }
490 if ((s->rbio != NULL) && (s->rbio != rbio))
491 BIO_free_all(s->rbio);
492 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
493 BIO_free_all(s->wbio);
494 s->rbio=rbio;
495 s->wbio=wbio;
496 }
497
498BIO *SSL_get_rbio(SSL *s)
499 { return(s->rbio); }
500
501BIO *SSL_get_wbio(SSL *s)
502 { return(s->wbio); }
503
504int SSL_get_fd(SSL *s)
505 {
506 return(SSL_get_rfd(s));
507 }
508
509int SSL_get_rfd(SSL *s)
510 {
511 int ret= -1;
512 BIO *b,*r;
513
514 b=SSL_get_rbio(s);
515 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
516 if (r != NULL)
517 BIO_get_fd(r,&ret);
518 return(ret);
519 }
520
521int SSL_get_wfd(SSL *s)
522 {
523 int ret= -1;
524 BIO *b,*r;
525
526 b=SSL_get_wbio(s);
527 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
528 if (r != NULL)
529 BIO_get_fd(r,&ret);
530 return(ret);
531 }
532
533#ifndef OPENSSL_NO_SOCK
534int SSL_set_fd(SSL *s,int fd)
535 {
536 int ret=0;
537 BIO *bio=NULL;
538
539 bio=BIO_new(BIO_s_socket());
540
541 if (bio == NULL)
542 {
543 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
544 goto err;
545 }
546 BIO_set_fd(bio,fd,BIO_NOCLOSE);
547 SSL_set_bio(s,bio,bio);
548 ret=1;
549err:
550 return(ret);
551 }
552
553int SSL_set_wfd(SSL *s,int fd)
554 {
555 int ret=0;
556 BIO *bio=NULL;
557
558 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
559 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
560 {
561 bio=BIO_new(BIO_s_socket());
562
563 if (bio == NULL)
564 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
565 BIO_set_fd(bio,fd,BIO_NOCLOSE);
566 SSL_set_bio(s,SSL_get_rbio(s),bio);
567 }
568 else
569 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
570 ret=1;
571err:
572 return(ret);
573 }
574
575int SSL_set_rfd(SSL *s,int fd)
576 {
577 int ret=0;
578 BIO *bio=NULL;
579
580 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
581 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
582 {
583 bio=BIO_new(BIO_s_socket());
584
585 if (bio == NULL)
586 {
587 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
588 goto err;
589 }
590 BIO_set_fd(bio,fd,BIO_NOCLOSE);
591 SSL_set_bio(s,bio,SSL_get_wbio(s));
592 }
593 else
594 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
595 ret=1;
596err:
597 return(ret);
598 }
599#endif
600
601
602/* return length of latest Finished message we sent, copy to 'buf' */
603size_t SSL_get_finished(SSL *s, void *buf, size_t count)
604 {
605 size_t ret = 0;
606
607 if (s->s3 != NULL)
608 {
609 ret = s->s3->tmp.finish_md_len;
610 if (count > ret)
611 count = ret;
612 memcpy(buf, s->s3->tmp.finish_md, count);
613 }
614 return ret;
615 }
616
617/* return length of latest Finished message we expected, copy to 'buf' */
618size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
619 {
620 size_t ret = 0;
621
622 if (s->s3 != NULL)
623 {
624 ret = s->s3->tmp.peer_finish_md_len;
625 if (count > ret)
626 count = ret;
627 memcpy(buf, s->s3->tmp.peer_finish_md, count);
628 }
629 return ret;
630 }
631
632
633int SSL_get_verify_mode(SSL *s)
634 {
635 return(s->verify_mode);
636 }
637
638int SSL_get_verify_depth(SSL *s)
639 {
640 return(s->verify_depth);
641 }
642
643int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
644 {
645 return(s->verify_callback);
646 }
647
648int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
649 {
650 return(ctx->verify_mode);
651 }
652
653int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
654 {
655 return(ctx->verify_depth);
656 }
657
658int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
659 {
660 return(ctx->default_verify_callback);
661 }
662
663void SSL_set_verify(SSL *s,int mode,
664 int (*callback)(int ok,X509_STORE_CTX *ctx))
665 {
666 s->verify_mode=mode;
667 if (callback != NULL)
668 s->verify_callback=callback;
669 }
670
671void SSL_set_verify_depth(SSL *s,int depth)
672 {
673 s->verify_depth=depth;
674 }
675
676void SSL_set_read_ahead(SSL *s,int yes)
677 {
678 s->read_ahead=yes;
679 }
680
681int SSL_get_read_ahead(SSL *s)
682 {
683 return(s->read_ahead);
684 }
685
686int SSL_pending(SSL *s)
687 {
688 /* SSL_pending cannot work properly if read-ahead is enabled
689 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
690 * and it is impossible to fix since SSL_pending cannot report
691 * errors that may be observed while scanning the new data.
692 * (Note that SSL_pending() is often used as a boolean value,
693 * so we'd better not return -1.)
694 */
695 return(s->method->ssl_pending(s));
696 }
697
698X509 *SSL_get_peer_certificate(SSL *s)
699 {
700 X509 *r;
701
702 if ((s == NULL) || (s->session == NULL))
703 r=NULL;
704 else
705 r=s->session->peer;
706
707 if (r == NULL) return(r);
708
709 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
710
711 return(r);
712 }
713
714STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
715 {
716 STACK_OF(X509) *r;
717
718 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
719 r=NULL;
720 else
721 r=s->session->sess_cert->cert_chain;
722
723 /* If we are a client, cert_chain includes the peer's own
724 * certificate; if we are a server, it does not. */
725
726 return(r);
727 }
728
729/* Now in theory, since the calling process own 't' it should be safe to
730 * modify. We need to be able to read f without being hassled */
731void SSL_copy_session_id(SSL *t,SSL *f)
732 {
733 CERT *tmp;
734
735 /* Do we need to to SSL locking? */
736 SSL_set_session(t,SSL_get_session(f));
737
738 /* what if we are setup as SSLv2 but want to talk SSLv3 or
739 * vice-versa */
740 if (t->method != f->method)
741 {
742 t->method->ssl_free(t); /* cleanup current */
743 t->method=f->method; /* change method */
744 t->method->ssl_new(t); /* setup new */
745 }
746
747 tmp=t->cert;
748 if (f->cert != NULL)
749 {
750 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
751 t->cert=f->cert;
752 }
753 else
754 t->cert=NULL;
755 if (tmp != NULL) ssl_cert_free(tmp);
756 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
757 }
758
759/* Fix this so it checks all the valid key/cert options */
760int SSL_CTX_check_private_key(SSL_CTX *ctx)
761 {
762 if ( (ctx == NULL) ||
763 (ctx->cert == NULL) ||
764 (ctx->cert->key->x509 == NULL))
765 {
766 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
767 return(0);
768 }
769 if (ctx->cert->key->privatekey == NULL)
770 {
771 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
772 return(0);
773 }
774 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
775 }
776
777/* Fix this function so that it takes an optional type parameter */
778int SSL_check_private_key(SSL *ssl)
779 {
780 if (ssl == NULL)
781 {
782 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
783 return(0);
784 }
785 if (ssl->cert == NULL)
786 {
787 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
788 return 0;
789 }
790 if (ssl->cert->key->x509 == NULL)
791 {
792 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
793 return(0);
794 }
795 if (ssl->cert->key->privatekey == NULL)
796 {
797 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
798 return(0);
799 }
800 return(X509_check_private_key(ssl->cert->key->x509,
801 ssl->cert->key->privatekey));
802 }
803
804int SSL_accept(SSL *s)
805 {
806 if (s->handshake_func == 0)
807 /* Not properly initialized yet */
808 SSL_set_accept_state(s);
809
810 return(s->method->ssl_accept(s));
811 }
812
813int SSL_connect(SSL *s)
814 {
815 if (s->handshake_func == 0)
816 /* Not properly initialized yet */
817 SSL_set_connect_state(s);
818
819 return(s->method->ssl_connect(s));
820 }
821
822long SSL_get_default_timeout(SSL *s)
823 {
824 return(s->method->get_timeout());
825 }
826
827int SSL_read(SSL *s,void *buf,int num)
828 {
829 if (s->handshake_func == 0)
830 {
831 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
832 return -1;
833 }
834
835 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
836 {
837 s->rwstate=SSL_NOTHING;
838 return(0);
839 }
840 return(s->method->ssl_read(s,buf,num));
841 }
842
843int SSL_peek(SSL *s,void *buf,int num)
844 {
845 if (s->handshake_func == 0)
846 {
847 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
848 return -1;
849 }
850
851 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
852 {
853 return(0);
854 }
855 return(s->method->ssl_peek(s,buf,num));
856 }
857
858int SSL_write(SSL *s,const void *buf,int num)
859 {
860 if (s->handshake_func == 0)
861 {
862 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
863 return -1;
864 }
865
866 if (s->shutdown & SSL_SENT_SHUTDOWN)
867 {
868 s->rwstate=SSL_NOTHING;
869 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
870 return(-1);
871 }
872 return(s->method->ssl_write(s,buf,num));
873 }
874
875int SSL_shutdown(SSL *s)
876 {
877 /* Note that this function behaves differently from what one might
878 * expect. Return values are 0 for no success (yet),
879 * 1 for success; but calling it once is usually not enough,
880 * even if blocking I/O is used (see ssl3_shutdown).
881 */
882
883 if (s->handshake_func == 0)
884 {
885 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
886 return -1;
887 }
888
889 if ((s != NULL) && !SSL_in_init(s))
890 return(s->method->ssl_shutdown(s));
891 else
892 return(1);
893 }
894
895int SSL_renegotiate(SSL *s)
896 {
897 if (s->new_session == 0)
898 {
899 s->new_session=1;
900 }
901 return(s->method->ssl_renegotiate(s));
902 }
903
904int SSL_renegotiate_pending(SSL *s)
905 {
906 /* becomes true when negotiation is requested;
907 * false again once a handshake has finished */
908 return (s->new_session != 0);
909 }
910
911long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
912 {
913 long l;
914
915 switch (cmd)
916 {
917 case SSL_CTRL_GET_READ_AHEAD:
918 return(s->read_ahead);
919 case SSL_CTRL_SET_READ_AHEAD:
920 l=s->read_ahead;
921 s->read_ahead=larg;
922 return(l);
923
924 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
925 s->msg_callback_arg = parg;
926 return 1;
927
928 case SSL_CTRL_OPTIONS:
929 return(s->options|=larg);
930 case SSL_CTRL_MODE:
931 return(s->mode|=larg);
932 case SSL_CTRL_GET_MAX_CERT_LIST:
933 return(s->max_cert_list);
934 case SSL_CTRL_SET_MAX_CERT_LIST:
935 l=s->max_cert_list;
936 s->max_cert_list=larg;
937 return(l);
938 default:
939 return(s->method->ssl_ctrl(s,cmd,larg,parg));
940 }
941 }
942
943long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
944 {
945 switch(cmd)
946 {
947 case SSL_CTRL_SET_MSG_CALLBACK:
948 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
949 return 1;
950
951 default:
952 return(s->method->ssl_callback_ctrl(s,cmd,fp));
953 }
954 }
955
956struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
957 {
958 return ctx->sessions;
959 }
960
961long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
962 {
963 long l;
964
965 switch (cmd)
966 {
967 case SSL_CTRL_GET_READ_AHEAD:
968 return(ctx->read_ahead);
969 case SSL_CTRL_SET_READ_AHEAD:
970 l=ctx->read_ahead;
971 ctx->read_ahead=larg;
972 return(l);
973
974 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
975 ctx->msg_callback_arg = parg;
976 return 1;
977
978 case SSL_CTRL_GET_MAX_CERT_LIST:
979 return(ctx->max_cert_list);
980 case SSL_CTRL_SET_MAX_CERT_LIST:
981 l=ctx->max_cert_list;
982 ctx->max_cert_list=larg;
983 return(l);
984
985 case SSL_CTRL_SET_SESS_CACHE_SIZE:
986 l=ctx->session_cache_size;
987 ctx->session_cache_size=larg;
988 return(l);
989 case SSL_CTRL_GET_SESS_CACHE_SIZE:
990 return(ctx->session_cache_size);
991 case SSL_CTRL_SET_SESS_CACHE_MODE:
992 l=ctx->session_cache_mode;
993 ctx->session_cache_mode=larg;
994 return(l);
995 case SSL_CTRL_GET_SESS_CACHE_MODE:
996 return(ctx->session_cache_mode);
997
998 case SSL_CTRL_SESS_NUMBER:
999 return(ctx->sessions->num_items);
1000 case SSL_CTRL_SESS_CONNECT:
1001 return(ctx->stats.sess_connect);
1002 case SSL_CTRL_SESS_CONNECT_GOOD:
1003 return(ctx->stats.sess_connect_good);
1004 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1005 return(ctx->stats.sess_connect_renegotiate);
1006 case SSL_CTRL_SESS_ACCEPT:
1007 return(ctx->stats.sess_accept);
1008 case SSL_CTRL_SESS_ACCEPT_GOOD:
1009 return(ctx->stats.sess_accept_good);
1010 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1011 return(ctx->stats.sess_accept_renegotiate);
1012 case SSL_CTRL_SESS_HIT:
1013 return(ctx->stats.sess_hit);
1014 case SSL_CTRL_SESS_CB_HIT:
1015 return(ctx->stats.sess_cb_hit);
1016 case SSL_CTRL_SESS_MISSES:
1017 return(ctx->stats.sess_miss);
1018 case SSL_CTRL_SESS_TIMEOUTS:
1019 return(ctx->stats.sess_timeout);
1020 case SSL_CTRL_SESS_CACHE_FULL:
1021 return(ctx->stats.sess_cache_full);
1022 case SSL_CTRL_OPTIONS:
1023 return(ctx->options|=larg);
1024 case SSL_CTRL_MODE:
1025 return(ctx->mode|=larg);
1026 default:
1027 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1028 }
1029 }
1030
1031long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1032 {
1033 switch(cmd)
1034 {
1035 case SSL_CTRL_SET_MSG_CALLBACK:
1036 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1037 return 1;
1038
1039 default:
1040 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1041 }
1042 }
1043
1044int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1045 {
1046 long l;
1047
1048 l=a->id-b->id;
1049 if (l == 0L)
1050 return(0);
1051 else
1052 return((l > 0)?1:-1);
1053 }
1054
1055int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1056 const SSL_CIPHER * const *bp)
1057 {
1058 long l;
1059
1060 l=(*ap)->id-(*bp)->id;
1061 if (l == 0L)
1062 return(0);
1063 else
1064 return((l > 0)?1:-1);
1065 }
1066
1067/** return a STACK of the ciphers available for the SSL and in order of
1068 * preference */
1069STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
1070 {
1071 if (s != NULL)
1072 {
1073 if (s->cipher_list != NULL)
1074 {
1075 return(s->cipher_list);
1076 }
1077 else if ((s->ctx != NULL) &&
1078 (s->ctx->cipher_list != NULL))
1079 {
1080 return(s->ctx->cipher_list);
1081 }
1082 }
1083 return(NULL);
1084 }
1085
1086/** return a STACK of the ciphers available for the SSL and in order of
1087 * algorithm id */
1088STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1089 {
1090 if (s != NULL)
1091 {
1092 if (s->cipher_list_by_id != NULL)
1093 {
1094 return(s->cipher_list_by_id);
1095 }
1096 else if ((s->ctx != NULL) &&
1097 (s->ctx->cipher_list_by_id != NULL))
1098 {
1099 return(s->ctx->cipher_list_by_id);
1100 }
1101 }
1102 return(NULL);
1103 }
1104
1105/** The old interface to get the same thing as SSL_get_ciphers() */
1106const char *SSL_get_cipher_list(SSL *s,int n)
1107 {
1108 SSL_CIPHER *c;
1109 STACK_OF(SSL_CIPHER) *sk;
1110
1111 if (s == NULL) return(NULL);
1112 sk=SSL_get_ciphers(s);
1113 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1114 return(NULL);
1115 c=sk_SSL_CIPHER_value(sk,n);
1116 if (c == NULL) return(NULL);
1117 return(c->name);
1118 }
1119
1120/** specify the ciphers to be used by default by the SSL_CTX */
1121int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1122 {
1123 STACK_OF(SSL_CIPHER) *sk;
1124
1125 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1126 &ctx->cipher_list_by_id,str);
1127/* XXXX */
1128 return((sk == NULL)?0:1);
1129 }
1130
1131/** specify the ciphers to be used by the SSL */
1132int SSL_set_cipher_list(SSL *s,const char *str)
1133 {
1134 STACK_OF(SSL_CIPHER) *sk;
1135
1136 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1137 &s->cipher_list_by_id,str);
1138/* XXXX */
1139 return((sk == NULL)?0:1);
1140 }
1141
1142/* works well for SSLv2, not so good for SSLv3 */
1143char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
1144 {
1145 char *p;
1146 const char *cp;
1147 STACK_OF(SSL_CIPHER) *sk;
1148 SSL_CIPHER *c;
1149 int i;
1150
1151 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1152 (len < 2))
1153 return(NULL);
1154
1155 p=buf;
1156 sk=s->session->ciphers;
1157 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1158 {
1159 /* Decrement for either the ':' or a '\0' */
1160 len--;
1161 c=sk_SSL_CIPHER_value(sk,i);
1162 for (cp=c->name; *cp; )
1163 {
1164 if (len-- == 0)
1165 {
1166 *p='\0';
1167 return(buf);
1168 }
1169 else
1170 *(p++)= *(cp++);
1171 }
1172 *(p++)=':';
1173 }
1174 p[-1]='\0';
1175 return(buf);
1176 }
1177
1178int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1179 {
1180 int i,j=0;
1181 SSL_CIPHER *c;
1182 unsigned char *q;
1183#ifndef OPENSSL_NO_KRB5
1184 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1185#endif /* OPENSSL_NO_KRB5 */
1186
1187 if (sk == NULL) return(0);
1188 q=p;
1189
1190 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1191 {
1192 c=sk_SSL_CIPHER_value(sk,i);
1193#ifndef OPENSSL_NO_KRB5
1194 if ((c->algorithms & SSL_KRB5) && nokrb5)
1195 continue;
1196#endif /* OPENSSL_NO_KRB5 */
1197 j=ssl_put_cipher_by_char(s,c,p);
1198 p+=j;
1199 }
1200 return(p-q);
1201 }
1202
1203STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1204 STACK_OF(SSL_CIPHER) **skp)
1205 {
1206 SSL_CIPHER *c;
1207 STACK_OF(SSL_CIPHER) *sk;
1208 int i,n;
1209
1210 n=ssl_put_cipher_by_char(s,NULL,NULL);
1211 if ((num%n) != 0)
1212 {
1213 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1214 return(NULL);
1215 }
1216 if ((skp == NULL) || (*skp == NULL))
1217 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1218 else
1219 {
1220 sk= *skp;
1221 sk_SSL_CIPHER_zero(sk);
1222 }
1223
1224 for (i=0; i<num; i+=n)
1225 {
1226 c=ssl_get_cipher_by_char(s,p);
1227 p+=n;
1228 if (c != NULL)
1229 {
1230 if (!sk_SSL_CIPHER_push(sk,c))
1231 {
1232 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1233 goto err;
1234 }
1235 }
1236 }
1237
1238 if (skp != NULL)
1239 *skp=sk;
1240 return(sk);
1241err:
1242 if ((skp == NULL) || (*skp == NULL))
1243 sk_SSL_CIPHER_free(sk);
1244 return(NULL);
1245 }
1246
1247unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1248 {
1249 unsigned long l;
1250
1251 l=(unsigned long)
1252 ((unsigned int) a->session_id[0] )|
1253 ((unsigned int) a->session_id[1]<< 8L)|
1254 ((unsigned long)a->session_id[2]<<16L)|
1255 ((unsigned long)a->session_id[3]<<24L);
1256 return(l);
1257 }
1258
1259/* NB: If this function (or indeed the hash function which uses a sort of
1260 * coarser function than this one) is changed, ensure
1261 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1262 * able to construct an SSL_SESSION that will collide with any existing session
1263 * with a matching session ID. */
1264int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1265 {
1266 if (a->ssl_version != b->ssl_version)
1267 return(1);
1268 if (a->session_id_length != b->session_id_length)
1269 return(1);
1270 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1271 }
1272
1273/* These wrapper functions should remain rather than redeclaring
1274 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1275 * variable. The reason is that the functions aren't static, they're exposed via
1276 * ssl.h. */
1277static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1278static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1279
1280SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1281 {
1282 SSL_CTX *ret=NULL;
1283
1284 if (meth == NULL)
1285 {
1286 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1287 return(NULL);
1288 }
1289
1290 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1291 {
1292 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1293 goto err;
1294 }
1295 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1296 if (ret == NULL)
1297 goto err;
1298
1299 memset(ret,0,sizeof(SSL_CTX));
1300
1301 ret->method=meth;
1302
1303 ret->cert_store=NULL;
1304 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1305 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1306 ret->session_cache_head=NULL;
1307 ret->session_cache_tail=NULL;
1308
1309 /* We take the system default */
1310 ret->session_timeout=meth->get_timeout();
1311
1312 ret->new_session_cb=0;
1313 ret->remove_session_cb=0;
1314 ret->get_session_cb=0;
1315 ret->generate_session_id=0;
1316
1317 memset((char *)&ret->stats,0,sizeof(ret->stats));
1318
1319 ret->references=1;
1320 ret->quiet_shutdown=0;
1321
1322/* ret->cipher=NULL;*/
1323/* ret->s2->challenge=NULL;
1324 ret->master_key=NULL;
1325 ret->key_arg=NULL;
1326 ret->s2->conn_id=NULL; */
1327
1328 ret->info_callback=NULL;
1329
1330 ret->app_verify_callback=0;
1331 ret->app_verify_arg=NULL;
1332
1333 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1334 ret->read_ahead=0;
1335 ret->msg_callback=0;
1336 ret->msg_callback_arg=NULL;
1337 ret->verify_mode=SSL_VERIFY_NONE;
1338 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1339 ret->sid_ctx_length=0;
1340 ret->default_verify_callback=NULL;
1341 if ((ret->cert=ssl_cert_new()) == NULL)
1342 goto err;
1343
1344 ret->default_passwd_callback=0;
1345 ret->default_passwd_callback_userdata=NULL;
1346 ret->client_cert_cb=0;
1347
1348 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1349 LHASH_COMP_FN(SSL_SESSION_cmp));
1350 if (ret->sessions == NULL) goto err;
1351 ret->cert_store=X509_STORE_new();
1352 if (ret->cert_store == NULL) goto err;
1353
1354 ssl_create_cipher_list(ret->method,
1355 &ret->cipher_list,&ret->cipher_list_by_id,
1356 SSL_DEFAULT_CIPHER_LIST);
1357 if (ret->cipher_list == NULL
1358 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1359 {
1360 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1361 goto err2;
1362 }
1363
1364 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1365 {
1366 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1367 goto err2;
1368 }
1369 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1370 {
1371 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1372 goto err2;
1373 }
1374 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1375 {
1376 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1377 goto err2;
1378 }
1379
1380 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1381 goto err;
1382
1383 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1384
1385 ret->extra_certs=NULL;
1386 ret->comp_methods=SSL_COMP_get_compression_methods();
1387
1388 return(ret);
1389err:
1390 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1391err2:
1392 if (ret != NULL) SSL_CTX_free(ret);
1393 return(NULL);
1394 }
1395
1396#if 0
1397static void SSL_COMP_free(SSL_COMP *comp)
1398 { OPENSSL_free(comp); }
1399#endif
1400
1401void SSL_CTX_free(SSL_CTX *a)
1402 {
1403 int i;
1404
1405 if (a == NULL) return;
1406
1407 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1408#ifdef REF_PRINT
1409 REF_PRINT("SSL_CTX",a);
1410#endif
1411 if (i > 0) return;
1412#ifdef REF_CHECK
1413 if (i < 0)
1414 {
1415 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1416 abort(); /* ok */
1417 }
1418#endif
1419
1420 /*
1421 * Free internal session cache. However: the remove_cb() may reference
1422 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1423 * after the sessions were flushed.
1424 * As the ex_data handling routines might also touch the session cache,
1425 * the most secure solution seems to be: empty (flush) the cache, then
1426 * free ex_data, then finally free the cache.
1427 * (See ticket [openssl.org #212].)
1428 */
1429 if (a->sessions != NULL)
1430 SSL_CTX_flush_sessions(a,0);
1431
1432 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1433
1434 if (a->sessions != NULL)
1435 lh_free(a->sessions);
1436
1437 if (a->cert_store != NULL)
1438 X509_STORE_free(a->cert_store);
1439 if (a->cipher_list != NULL)
1440 sk_SSL_CIPHER_free(a->cipher_list);
1441 if (a->cipher_list_by_id != NULL)
1442 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1443 if (a->cert != NULL)
1444 ssl_cert_free(a->cert);
1445 if (a->client_CA != NULL)
1446 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1447 if (a->extra_certs != NULL)
1448 sk_X509_pop_free(a->extra_certs,X509_free);
1449#if 0 /* This should never be done, since it removes a global database */
1450 if (a->comp_methods != NULL)
1451 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1452#else
1453 a->comp_methods = NULL;
1454#endif
1455 OPENSSL_free(a);
1456 }
1457
1458void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1459 {
1460 ctx->default_passwd_callback=cb;
1461 }
1462
1463void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1464 {
1465 ctx->default_passwd_callback_userdata=u;
1466 }
1467
1468void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1469 {
1470 ctx->app_verify_callback=cb;
1471 ctx->app_verify_arg=arg;
1472 }
1473
1474void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1475 {
1476 ctx->verify_mode=mode;
1477 ctx->default_verify_callback=cb;
1478 }
1479
1480void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1481 {
1482 ctx->verify_depth=depth;
1483 }
1484
1485void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1486 {
1487 CERT_PKEY *cpk;
1488 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1489 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1490 int rsa_tmp_export,dh_tmp_export,kl;
1491 unsigned long mask,emask;
1492
1493 if (c == NULL) return;
1494
1495 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1496
1497#ifndef OPENSSL_NO_RSA
1498 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1499 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1500 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1501#else
1502 rsa_tmp=rsa_tmp_export=0;
1503#endif
1504#ifndef OPENSSL_NO_DH
1505 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1506 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1507 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1508#else
1509 dh_tmp=dh_tmp_export=0;
1510#endif
1511
1512 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1513 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1514 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1515 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1516 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1517 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1518 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1519 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1520 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1521 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1522 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1523/* FIX THIS EAY EAY EAY */
1524 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1525 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1526
1527 mask=0;
1528 emask=0;
1529
1530#ifdef CIPHER_DEBUG
1531 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1532 rsa_tmp,rsa_tmp_export,dh_tmp,
1533 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1534#endif
1535
1536 if (rsa_enc || (rsa_tmp && rsa_sign))
1537 mask|=SSL_kRSA;
1538 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1539 emask|=SSL_kRSA;
1540
1541#if 0
1542 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1543 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1544 (rsa_enc || rsa_sign || dsa_sign))
1545 mask|=SSL_kEDH;
1546 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1547 (rsa_enc || rsa_sign || dsa_sign))
1548 emask|=SSL_kEDH;
1549#endif
1550
1551 if (dh_tmp_export)
1552 emask|=SSL_kEDH;
1553
1554 if (dh_tmp)
1555 mask|=SSL_kEDH;
1556
1557 if (dh_rsa) mask|=SSL_kDHr;
1558 if (dh_rsa_export) emask|=SSL_kDHr;
1559
1560 if (dh_dsa) mask|=SSL_kDHd;
1561 if (dh_dsa_export) emask|=SSL_kDHd;
1562
1563 if (rsa_enc || rsa_sign)
1564 {
1565 mask|=SSL_aRSA;
1566 emask|=SSL_aRSA;
1567 }
1568
1569 if (dsa_sign)
1570 {
1571 mask|=SSL_aDSS;
1572 emask|=SSL_aDSS;
1573 }
1574
1575 mask|=SSL_aNULL;
1576 emask|=SSL_aNULL;
1577
1578#ifndef OPENSSL_NO_KRB5
1579 mask|=SSL_kKRB5|SSL_aKRB5;
1580 emask|=SSL_kKRB5|SSL_aKRB5;
1581#endif
1582
1583 c->mask=mask;
1584 c->export_mask=emask;
1585 c->valid=1;
1586 }
1587
1588/* THIS NEEDS CLEANING UP */
1589X509 *ssl_get_server_send_cert(SSL *s)
1590 {
1591 unsigned long alg,mask,kalg;
1592 CERT *c;
1593 int i,is_export;
1594
1595 c=s->cert;
1596 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1597 alg=s->s3->tmp.new_cipher->algorithms;
1598 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1599 mask=is_export?c->export_mask:c->mask;
1600 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1601
1602 if (kalg & SSL_kDHr)
1603 i=SSL_PKEY_DH_RSA;
1604 else if (kalg & SSL_kDHd)
1605 i=SSL_PKEY_DH_DSA;
1606 else if (kalg & SSL_aDSS)
1607 i=SSL_PKEY_DSA_SIGN;
1608 else if (kalg & SSL_aRSA)
1609 {
1610 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1611 i=SSL_PKEY_RSA_SIGN;
1612 else
1613 i=SSL_PKEY_RSA_ENC;
1614 }
1615 else if (kalg & SSL_aKRB5)
1616 {
1617 /* VRS something else here? */
1618 return(NULL);
1619 }
1620 else /* if (kalg & SSL_aNULL) */
1621 {
1622 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1623 return(NULL);
1624 }
1625 if (c->pkeys[i].x509 == NULL) return(NULL);
1626 return(c->pkeys[i].x509);
1627 }
1628
1629EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1630 {
1631 unsigned long alg;
1632 CERT *c;
1633
1634 alg=cipher->algorithms;
1635 c=s->cert;
1636
1637 if ((alg & SSL_aDSS) &&
1638 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1639 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1640 else if (alg & SSL_aRSA)
1641 {
1642 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1643 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1644 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1645 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1646 else
1647 return(NULL);
1648 }
1649 else /* if (alg & SSL_aNULL) */
1650 {
1651 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1652 return(NULL);
1653 }
1654 }
1655
1656void ssl_update_cache(SSL *s,int mode)
1657 {
1658 int i;
1659
1660 /* If the session_id_length is 0, we are not supposed to cache it,
1661 * and it would be rather hard to do anyway :-) */
1662 if (s->session->session_id_length == 0) return;
1663
1664 i=s->ctx->session_cache_mode;
1665 if ((i & mode) && (!s->hit)
1666 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1667 || SSL_CTX_add_session(s->ctx,s->session))
1668 && (s->ctx->new_session_cb != NULL))
1669 {
1670 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1671 if (!s->ctx->new_session_cb(s,s->session))
1672 SSL_SESSION_free(s->session);
1673 }
1674
1675 /* auto flush every 255 connections */
1676 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1677 ((i & mode) == mode))
1678 {
1679 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1680 ?s->ctx->stats.sess_connect_good
1681 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1682 {
1683 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1684 }
1685 }
1686 }
1687
1688SSL_METHOD *SSL_get_ssl_method(SSL *s)
1689 {
1690 return(s->method);
1691 }
1692
1693int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1694 {
1695 int conn= -1;
1696 int ret=1;
1697
1698 if (s->method != meth)
1699 {
1700 if (s->handshake_func != NULL)
1701 conn=(s->handshake_func == s->method->ssl_connect);
1702
1703 if (s->method->version == meth->version)
1704 s->method=meth;
1705 else
1706 {
1707 s->method->ssl_free(s);
1708 s->method=meth;
1709 ret=s->method->ssl_new(s);
1710 }
1711
1712 if (conn == 1)
1713 s->handshake_func=meth->ssl_connect;
1714 else if (conn == 0)
1715 s->handshake_func=meth->ssl_accept;
1716 }
1717 return(ret);
1718 }
1719
1720int SSL_get_error(SSL *s,int i)
1721 {
1722 int reason;
1723 unsigned long l;
1724 BIO *bio;
1725
1726 if (i > 0) return(SSL_ERROR_NONE);
1727
1728 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1729 * etc, where we do encode the error */
1730 if ((l=ERR_peek_error()) != 0)
1731 {
1732 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1733 return(SSL_ERROR_SYSCALL);
1734 else
1735 return(SSL_ERROR_SSL);
1736 }
1737
1738 if ((i < 0) && SSL_want_read(s))
1739 {
1740 bio=SSL_get_rbio(s);
1741 if (BIO_should_read(bio))
1742 return(SSL_ERROR_WANT_READ);
1743 else if (BIO_should_write(bio))
1744 /* This one doesn't make too much sense ... We never try
1745 * to write to the rbio, and an application program where
1746 * rbio and wbio are separate couldn't even know what it
1747 * should wait for.
1748 * However if we ever set s->rwstate incorrectly
1749 * (so that we have SSL_want_read(s) instead of
1750 * SSL_want_write(s)) and rbio and wbio *are* the same,
1751 * this test works around that bug; so it might be safer
1752 * to keep it. */
1753 return(SSL_ERROR_WANT_WRITE);
1754 else if (BIO_should_io_special(bio))
1755 {
1756 reason=BIO_get_retry_reason(bio);
1757 if (reason == BIO_RR_CONNECT)
1758 return(SSL_ERROR_WANT_CONNECT);
1759 else if (reason == BIO_RR_ACCEPT)
1760 return(SSL_ERROR_WANT_ACCEPT);
1761 else
1762 return(SSL_ERROR_SYSCALL); /* unknown */
1763 }
1764 }
1765
1766 if ((i < 0) && SSL_want_write(s))
1767 {
1768 bio=SSL_get_wbio(s);
1769 if (BIO_should_write(bio))
1770 return(SSL_ERROR_WANT_WRITE);
1771 else if (BIO_should_read(bio))
1772 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1773 return(SSL_ERROR_WANT_READ);
1774 else if (BIO_should_io_special(bio))
1775 {
1776 reason=BIO_get_retry_reason(bio);
1777 if (reason == BIO_RR_CONNECT)
1778 return(SSL_ERROR_WANT_CONNECT);
1779 else if (reason == BIO_RR_ACCEPT)
1780 return(SSL_ERROR_WANT_ACCEPT);
1781 else
1782 return(SSL_ERROR_SYSCALL);
1783 }
1784 }
1785 if ((i < 0) && SSL_want_x509_lookup(s))
1786 {
1787 return(SSL_ERROR_WANT_X509_LOOKUP);
1788 }
1789
1790 if (i == 0)
1791 {
1792 if (s->version == SSL2_VERSION)
1793 {
1794 /* assume it is the socket being closed */
1795 return(SSL_ERROR_ZERO_RETURN);
1796 }
1797 else
1798 {
1799 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1800 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1801 return(SSL_ERROR_ZERO_RETURN);
1802 }
1803 }
1804 return(SSL_ERROR_SYSCALL);
1805 }
1806
1807int SSL_do_handshake(SSL *s)
1808 {
1809 int ret=1;
1810
1811 if (s->handshake_func == NULL)
1812 {
1813 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1814 return(-1);
1815 }
1816
1817 s->method->ssl_renegotiate_check(s);
1818
1819 if (SSL_in_init(s) || SSL_in_before(s))
1820 {
1821 ret=s->handshake_func(s);
1822 }
1823 return(ret);
1824 }
1825
1826/* For the next 2 functions, SSL_clear() sets shutdown and so
1827 * one of these calls will reset it */
1828void SSL_set_accept_state(SSL *s)
1829 {
1830 s->server=1;
1831 s->shutdown=0;
1832 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1833 s->handshake_func=s->method->ssl_accept;
1834 /* clear the current cipher */
1835 ssl_clear_cipher_ctx(s);
1836 }
1837
1838void SSL_set_connect_state(SSL *s)
1839 {
1840 s->server=0;
1841 s->shutdown=0;
1842 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1843 s->handshake_func=s->method->ssl_connect;
1844 /* clear the current cipher */
1845 ssl_clear_cipher_ctx(s);
1846 }
1847
1848int ssl_undefined_function(SSL *s)
1849 {
1850 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1851 return(0);
1852 }
1853
1854SSL_METHOD *ssl_bad_method(int ver)
1855 {
1856 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1857 return(NULL);
1858 }
1859
1860const char *SSL_get_version(SSL *s)
1861 {
1862 if (s->version == TLS1_VERSION)
1863 return("TLSv1");
1864 else if (s->version == SSL3_VERSION)
1865 return("SSLv3");
1866 else if (s->version == SSL2_VERSION)
1867 return("SSLv2");
1868 else
1869 return("unknown");
1870 }
1871
1872SSL *SSL_dup(SSL *s)
1873 {
1874 STACK_OF(X509_NAME) *sk;
1875 X509_NAME *xn;
1876 SSL *ret;
1877 int i;
1878
1879 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1880 return(NULL);
1881
1882 ret->version = s->version;
1883 ret->type = s->type;
1884 ret->method = s->method;
1885
1886 if (s->session != NULL)
1887 {
1888 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1889 SSL_copy_session_id(ret,s);
1890 }
1891 else
1892 {
1893 /* No session has been established yet, so we have to expect
1894 * that s->cert or ret->cert will be changed later --
1895 * they should not both point to the same object,
1896 * and thus we can't use SSL_copy_session_id. */
1897
1898 ret->method->ssl_free(ret);
1899 ret->method = s->method;
1900 ret->method->ssl_new(ret);
1901
1902 if (s->cert != NULL)
1903 {
1904 if (ret->cert != NULL)
1905 {
1906 ssl_cert_free(ret->cert);
1907 }
1908 ret->cert = ssl_cert_dup(s->cert);
1909 if (ret->cert == NULL)
1910 goto err;
1911 }
1912
1913 SSL_set_session_id_context(ret,
1914 s->sid_ctx, s->sid_ctx_length);
1915 }
1916
1917 ret->options=s->options;
1918 ret->mode=s->mode;
1919 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
1920 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1921 ret->msg_callback = s->msg_callback;
1922 ret->msg_callback_arg = s->msg_callback_arg;
1923 SSL_set_verify(ret,SSL_get_verify_mode(s),
1924 SSL_get_verify_callback(s));
1925 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1926 ret->generate_session_id = s->generate_session_id;
1927
1928 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1929
1930 ret->debug=s->debug;
1931
1932 /* copy app data, a little dangerous perhaps */
1933 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
1934 goto err;
1935
1936 /* setup rbio, and wbio */
1937 if (s->rbio != NULL)
1938 {
1939 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1940 goto err;
1941 }
1942 if (s->wbio != NULL)
1943 {
1944 if (s->wbio != s->rbio)
1945 {
1946 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1947 goto err;
1948 }
1949 else
1950 ret->wbio=ret->rbio;
1951 }
1952 ret->rwstate = s->rwstate;
1953 ret->in_handshake = s->in_handshake;
1954 ret->handshake_func = s->handshake_func;
1955 ret->server = s->server;
1956 ret->new_session = s->new_session;
1957 ret->quiet_shutdown = s->quiet_shutdown;
1958 ret->shutdown=s->shutdown;
1959 ret->state=s->state; /* SSL_dup does not really work at any state, though */
1960 ret->rstate=s->rstate;
1961 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
1962 ret->hit=s->hit;
1963 ret->purpose=s->purpose;
1964 ret->trust=s->trust;
1965
1966 /* dup the cipher_list and cipher_list_by_id stacks */
1967 if (s->cipher_list != NULL)
1968 {
1969 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1970 goto err;
1971 }
1972 if (s->cipher_list_by_id != NULL)
1973 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1974 == NULL)
1975 goto err;
1976
1977 /* Dup the client_CA list */
1978 if (s->client_CA != NULL)
1979 {
1980 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1981 ret->client_CA=sk;
1982 for (i=0; i<sk_X509_NAME_num(sk); i++)
1983 {
1984 xn=sk_X509_NAME_value(sk,i);
1985 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1986 {
1987 X509_NAME_free(xn);
1988 goto err;
1989 }
1990 }
1991 }
1992
1993 if (0)
1994 {
1995err:
1996 if (ret != NULL) SSL_free(ret);
1997 ret=NULL;
1998 }
1999 return(ret);
2000 }
2001
2002void ssl_clear_cipher_ctx(SSL *s)
2003 {
2004 if (s->enc_read_ctx != NULL)
2005 {
2006 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2007 OPENSSL_free(s->enc_read_ctx);
2008 s->enc_read_ctx=NULL;
2009 }
2010 if (s->enc_write_ctx != NULL)
2011 {
2012 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2013 OPENSSL_free(s->enc_write_ctx);
2014 s->enc_write_ctx=NULL;
2015 }
2016 if (s->expand != NULL)
2017 {
2018 COMP_CTX_free(s->expand);
2019 s->expand=NULL;
2020 }
2021 if (s->compress != NULL)
2022 {
2023 COMP_CTX_free(s->compress);
2024 s->compress=NULL;
2025 }
2026 }
2027
2028/* Fix this function so that it takes an optional type parameter */
2029X509 *SSL_get_certificate(SSL *s)
2030 {
2031 if (s->cert != NULL)
2032 return(s->cert->key->x509);
2033 else
2034 return(NULL);
2035 }
2036
2037/* Fix this function so that it takes an optional type parameter */
2038EVP_PKEY *SSL_get_privatekey(SSL *s)
2039 {
2040 if (s->cert != NULL)
2041 return(s->cert->key->privatekey);
2042 else
2043 return(NULL);
2044 }
2045
2046SSL_CIPHER *SSL_get_current_cipher(SSL *s)
2047 {
2048 if ((s->session != NULL) && (s->session->cipher != NULL))
2049 return(s->session->cipher);
2050 return(NULL);
2051 }
2052
2053int ssl_init_wbio_buffer(SSL *s,int push)
2054 {
2055 BIO *bbio;
2056
2057 if (s->bbio == NULL)
2058 {
2059 bbio=BIO_new(BIO_f_buffer());
2060 if (bbio == NULL) return(0);
2061 s->bbio=bbio;
2062 }
2063 else
2064 {
2065 bbio=s->bbio;
2066 if (s->bbio == s->wbio)
2067 s->wbio=BIO_pop(s->wbio);
2068 }
2069 (void)BIO_reset(bbio);
2070/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2071 if (!BIO_set_read_buffer_size(bbio,1))
2072 {
2073 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2074 return(0);
2075 }
2076 if (push)
2077 {
2078 if (s->wbio != bbio)
2079 s->wbio=BIO_push(bbio,s->wbio);
2080 }
2081 else
2082 {
2083 if (s->wbio == bbio)
2084 s->wbio=BIO_pop(bbio);
2085 }
2086 return(1);
2087 }
2088
2089void ssl_free_wbio_buffer(SSL *s)
2090 {
2091 if (s->bbio == NULL) return;
2092
2093 if (s->bbio == s->wbio)
2094 {
2095 /* remove buffering */
2096 s->wbio=BIO_pop(s->wbio);
2097#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2098 assert(s->wbio != NULL);
2099#endif
2100 }
2101 BIO_free(s->bbio);
2102 s->bbio=NULL;
2103 }
2104
2105void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2106 {
2107 ctx->quiet_shutdown=mode;
2108 }
2109
2110int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
2111 {
2112 return(ctx->quiet_shutdown);
2113 }
2114
2115void SSL_set_quiet_shutdown(SSL *s,int mode)
2116 {
2117 s->quiet_shutdown=mode;
2118 }
2119
2120int SSL_get_quiet_shutdown(SSL *s)
2121 {
2122 return(s->quiet_shutdown);
2123 }
2124
2125void SSL_set_shutdown(SSL *s,int mode)
2126 {
2127 s->shutdown=mode;
2128 }
2129
2130int SSL_get_shutdown(SSL *s)
2131 {
2132 return(s->shutdown);
2133 }
2134
2135int SSL_version(SSL *s)
2136 {
2137 return(s->version);
2138 }
2139
2140SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
2141 {
2142 return(ssl->ctx);
2143 }
2144
2145#ifndef OPENSSL_NO_STDIO
2146int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2147 {
2148 return(X509_STORE_set_default_paths(ctx->cert_store));
2149 }
2150
2151int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2152 const char *CApath)
2153 {
2154 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2155 }
2156#endif
2157
2158void SSL_set_info_callback(SSL *ssl,
2159 void (*cb)(const SSL *ssl,int type,int val))
2160 {
2161 ssl->info_callback=cb;
2162 }
2163
2164void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
2165 {
2166 return ssl->info_callback;
2167 }
2168
2169int SSL_state(SSL *ssl)
2170 {
2171 return(ssl->state);
2172 }
2173
2174void SSL_set_verify_result(SSL *ssl,long arg)
2175 {
2176 ssl->verify_result=arg;
2177 }
2178
2179long SSL_get_verify_result(SSL *ssl)
2180 {
2181 return(ssl->verify_result);
2182 }
2183
2184int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2185 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2186 {
2187 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2188 new_func, dup_func, free_func);
2189 }
2190
2191int SSL_set_ex_data(SSL *s,int idx,void *arg)
2192 {
2193 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2194 }
2195
2196void *SSL_get_ex_data(SSL *s,int idx)
2197 {
2198 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2199 }
2200
2201int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2202 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2203 {
2204 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2205 new_func, dup_func, free_func);
2206 }
2207
2208int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2209 {
2210 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2211 }
2212
2213void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2214 {
2215 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2216 }
2217
2218int ssl_ok(SSL *s)
2219 {
2220 return(1);
2221 }
2222
2223X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2224 {
2225 return(ctx->cert_store);
2226 }
2227
2228void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2229 {
2230 if (ctx->cert_store != NULL)
2231 X509_STORE_free(ctx->cert_store);
2232 ctx->cert_store=store;
2233 }
2234
2235int SSL_want(SSL *s)
2236 {
2237 return(s->rwstate);
2238 }
2239
2240/*!
2241 * \brief Set the callback for generating temporary RSA keys.
2242 * \param ctx the SSL context.
2243 * \param cb the callback
2244 */
2245
2246#ifndef OPENSSL_NO_RSA
2247void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2248 int is_export,
2249 int keylength))
2250 {
2251 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2252 }
2253
2254void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2255 int is_export,
2256 int keylength))
2257 {
2258 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2259 }
2260#endif
2261
2262#ifdef DOXYGEN
2263/*!
2264 * \brief The RSA temporary key callback function.
2265 * \param ssl the SSL session.
2266 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2267 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2268 * of the required key in bits.
2269 * \return the temporary RSA key.
2270 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2271 */
2272
2273RSA *cb(SSL *ssl,int is_export,int keylength)
2274 {}
2275#endif
2276
2277/*!
2278 * \brief Set the callback for generating temporary DH keys.
2279 * \param ctx the SSL context.
2280 * \param dh the callback
2281 */
2282
2283#ifndef OPENSSL_NO_DH
2284void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2285 int keylength))
2286 {
2287 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2288 }
2289
2290void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2291 int keylength))
2292 {
2293 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2294 }
2295#endif
2296
2297
2298void 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))
2299 {
2300 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2301 }
2302void 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))
2303 {
2304 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2305 }
2306
2307
2308
2309#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2310#include "../crypto/bio/bss_file.c"
2311#endif
2312
2313IMPLEMENT_STACK_OF(SSL_CIPHER)
2314IMPLEMENT_STACK_OF(SSL_COMP)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-27 02:33:06 +0000