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1/* ssl/s3_lib.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <openssl/md5.h>
61#include <openssl/sha.h>
62#include <openssl/objects.h>
63#include "ssl_locl.h"
64
65const char *ssl3_version_str="SSLv3" OPENSSL_VERSION_PTEXT;
66
67#define SSL3_NUM_CIPHERS (sizeof(ssl3_ciphers)/sizeof(SSL_CIPHER))
68
69static long ssl3_default_timeout(void );
70
71OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={
72/* The RSA ciphers */
73/* Cipher 01 */
74 {
75 1,
76 SSL3_TXT_RSA_NULL_MD5,
77 SSL3_CK_RSA_NULL_MD5,
78 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
79 0,
80 SSL_ALL_CIPHERS,
81 },
82/* Cipher 02 */
83 {
84 1,
85 SSL3_TXT_RSA_NULL_SHA,
86 SSL3_CK_RSA_NULL_SHA,
87 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
88 0,
89 SSL_ALL_CIPHERS,
90 },
91
92/* anon DH */
93/* Cipher 17 */
94 {
95 1,
96 SSL3_TXT_ADH_RC4_40_MD5,
97 SSL3_CK_ADH_RC4_40_MD5,
98 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
99 0,
100 SSL_ALL_CIPHERS,
101 },
102/* Cipher 18 */
103 {
104 1,
105 SSL3_TXT_ADH_RC4_128_MD5,
106 SSL3_CK_ADH_RC4_128_MD5,
107 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
108 0,
109 SSL_ALL_CIPHERS,
110 },
111/* Cipher 19 */
112 {
113 1,
114 SSL3_TXT_ADH_DES_40_CBC_SHA,
115 SSL3_CK_ADH_DES_40_CBC_SHA,
116 SSL_kEDH |SSL_aNULL|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
117 0,
118 SSL_ALL_CIPHERS,
119 },
120/* Cipher 1A */
121 {
122 1,
123 SSL3_TXT_ADH_DES_64_CBC_SHA,
124 SSL3_CK_ADH_DES_64_CBC_SHA,
125 SSL_kEDH |SSL_aNULL|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
126 0,
127 SSL_ALL_CIPHERS,
128 },
129/* Cipher 1B */
130 {
131 1,
132 SSL3_TXT_ADH_DES_192_CBC_SHA,
133 SSL3_CK_ADH_DES_192_CBC_SHA,
134 SSL_kEDH |SSL_aNULL|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
135 0,
136 SSL_ALL_CIPHERS,
137 },
138
139/* RSA again */
140/* Cipher 03 */
141 {
142 1,
143 SSL3_TXT_RSA_RC4_40_MD5,
144 SSL3_CK_RSA_RC4_40_MD5,
145 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
146 0,
147 SSL_ALL_CIPHERS,
148 },
149/* Cipher 04 */
150 {
151 1,
152 SSL3_TXT_RSA_RC4_128_MD5,
153 SSL3_CK_RSA_RC4_128_MD5,
154 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
155 0,
156 SSL_ALL_CIPHERS,
157 },
158/* Cipher 05 */
159 {
160 1,
161 SSL3_TXT_RSA_RC4_128_SHA,
162 SSL3_CK_RSA_RC4_128_SHA,
163 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
164 0,
165 SSL_ALL_CIPHERS,
166 },
167/* Cipher 06 */
168 {
169 1,
170 SSL3_TXT_RSA_RC2_40_MD5,
171 SSL3_CK_RSA_RC2_40_MD5,
172 SSL_kRSA|SSL_aRSA|SSL_RC2 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
173 0,
174 SSL_ALL_CIPHERS,
175 },
176/* Cipher 07 */
177 {
178 1,
179 SSL3_TXT_RSA_IDEA_128_SHA,
180 SSL3_CK_RSA_IDEA_128_SHA,
181 SSL_kRSA|SSL_aRSA|SSL_IDEA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
182 0,
183 SSL_ALL_CIPHERS,
184 },
185/* Cipher 08 */
186 {
187 1,
188 SSL3_TXT_RSA_DES_40_CBC_SHA,
189 SSL3_CK_RSA_DES_40_CBC_SHA,
190 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
191 0,
192 SSL_ALL_CIPHERS,
193 },
194/* Cipher 09 */
195 {
196 1,
197 SSL3_TXT_RSA_DES_64_CBC_SHA,
198 SSL3_CK_RSA_DES_64_CBC_SHA,
199 SSL_kRSA|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
200 0,
201 SSL_ALL_CIPHERS,
202 },
203/* Cipher 0A */
204 {
205 1,
206 SSL3_TXT_RSA_DES_192_CBC3_SHA,
207 SSL3_CK_RSA_DES_192_CBC3_SHA,
208 SSL_kRSA|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
209 0,
210 SSL_ALL_CIPHERS,
211 },
212
213/* The DH ciphers */
214/* Cipher 0B */
215 {
216 0,
217 SSL3_TXT_DH_DSS_DES_40_CBC_SHA,
218 SSL3_CK_DH_DSS_DES_40_CBC_SHA,
219 SSL_kDHd |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
220 0,
221 SSL_ALL_CIPHERS,
222 },
223/* Cipher 0C */
224 {
225 0,
226 SSL3_TXT_DH_DSS_DES_64_CBC_SHA,
227 SSL3_CK_DH_DSS_DES_64_CBC_SHA,
228 SSL_kDHd |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
229 0,
230 SSL_ALL_CIPHERS,
231 },
232/* Cipher 0D */
233 {
234 0,
235 SSL3_TXT_DH_DSS_DES_192_CBC3_SHA,
236 SSL3_CK_DH_DSS_DES_192_CBC3_SHA,
237 SSL_kDHd |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
238 0,
239 SSL_ALL_CIPHERS,
240 },
241/* Cipher 0E */
242 {
243 0,
244 SSL3_TXT_DH_RSA_DES_40_CBC_SHA,
245 SSL3_CK_DH_RSA_DES_40_CBC_SHA,
246 SSL_kDHr |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
247 0,
248 SSL_ALL_CIPHERS,
249 },
250/* Cipher 0F */
251 {
252 0,
253 SSL3_TXT_DH_RSA_DES_64_CBC_SHA,
254 SSL3_CK_DH_RSA_DES_64_CBC_SHA,
255 SSL_kDHr |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
256 0,
257 SSL_ALL_CIPHERS,
258 },
259/* Cipher 10 */
260 {
261 0,
262 SSL3_TXT_DH_RSA_DES_192_CBC3_SHA,
263 SSL3_CK_DH_RSA_DES_192_CBC3_SHA,
264 SSL_kDHr |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
265 0,
266 SSL_ALL_CIPHERS,
267 },
268
269/* The Ephemeral DH ciphers */
270/* Cipher 11 */
271 {
272 1,
273 SSL3_TXT_EDH_DSS_DES_40_CBC_SHA,
274 SSL3_CK_EDH_DSS_DES_40_CBC_SHA,
275 SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
276 0,
277 SSL_ALL_CIPHERS,
278 },
279/* Cipher 12 */
280 {
281 1,
282 SSL3_TXT_EDH_DSS_DES_64_CBC_SHA,
283 SSL3_CK_EDH_DSS_DES_64_CBC_SHA,
284 SSL_kEDH|SSL_aDSS|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
285 0,
286 SSL_ALL_CIPHERS,
287 },
288/* Cipher 13 */
289 {
290 1,
291 SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA,
292 SSL3_CK_EDH_DSS_DES_192_CBC3_SHA,
293 SSL_kEDH|SSL_aDSS|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
294 0,
295 SSL_ALL_CIPHERS,
296 },
297/* Cipher 14 */
298 {
299 1,
300 SSL3_TXT_EDH_RSA_DES_40_CBC_SHA,
301 SSL3_CK_EDH_RSA_DES_40_CBC_SHA,
302 SSL_kEDH|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
303 0,
304 SSL_ALL_CIPHERS,
305 },
306/* Cipher 15 */
307 {
308 1,
309 SSL3_TXT_EDH_RSA_DES_64_CBC_SHA,
310 SSL3_CK_EDH_RSA_DES_64_CBC_SHA,
311 SSL_kEDH|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
312 0,
313 SSL_ALL_CIPHERS,
314 },
315/* Cipher 16 */
316 {
317 1,
318 SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA,
319 SSL3_CK_EDH_RSA_DES_192_CBC3_SHA,
320 SSL_kEDH|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
321 0,
322 SSL_ALL_CIPHERS,
323 },
324
325/* Fortezza */
326/* Cipher 1C */
327 {
328 0,
329 SSL3_TXT_FZA_DMS_NULL_SHA,
330 SSL3_CK_FZA_DMS_NULL_SHA,
331 SSL_kFZA|SSL_aFZA |SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
332 0,
333 SSL_ALL_CIPHERS,
334 },
335
336/* Cipher 1D */
337 {
338 0,
339 SSL3_TXT_FZA_DMS_FZA_SHA,
340 SSL3_CK_FZA_DMS_FZA_SHA,
341 SSL_kFZA|SSL_aFZA |SSL_eFZA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
342 0,
343 SSL_ALL_CIPHERS,
344 },
345
346/* Cipher 1E */
347 {
348 0,
349 SSL3_TXT_FZA_DMS_RC4_SHA,
350 SSL3_CK_FZA_DMS_RC4_SHA,
351 SSL_kFZA|SSL_aFZA |SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
352 0,
353 SSL_ALL_CIPHERS,
354 },
355
356#if TLS1_ALLOW_EXPERIMENTAL_CIPHERSUITES
357 /* New TLS Export CipherSuites */
358 /* Cipher 60 */
359 {
360 1,
361 TLS1_TXT_RSA_EXPORT1024_WITH_RC4_56_MD5,
362 TLS1_CK_RSA_EXPORT1024_WITH_RC4_56_MD5,
363 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_EXP56|SSL_TLSV1,
364 0,
365 SSL_ALL_CIPHERS
366 },
367 /* Cipher 61 */
368 {
369 1,
370 TLS1_TXT_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5,
371 TLS1_CK_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5,
372 SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_EXP56|SSL_TLSV1,
373 0,
374 SSL_ALL_CIPHERS
375 },
376 /* Cipher 62 */
377 {
378 1,
379 TLS1_TXT_RSA_EXPORT1024_WITH_DES_CBC_SHA,
380 TLS1_CK_RSA_EXPORT1024_WITH_DES_CBC_SHA,
381 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA|SSL_EXP56|SSL_TLSV1,
382 0,
383 SSL_ALL_CIPHERS
384 },
385 /* Cipher 63 */
386 {
387 1,
388 TLS1_TXT_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA,
389 TLS1_CK_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA,
390 SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA|SSL_EXP56|SSL_TLSV1,
391 0,
392 SSL_ALL_CIPHERS
393 },
394 /* Cipher 64 */
395 {
396 1,
397 TLS1_TXT_RSA_EXPORT1024_WITH_RC4_56_SHA,
398 TLS1_CK_RSA_EXPORT1024_WITH_RC4_56_SHA,
399 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_SHA|SSL_EXP56|SSL_TLSV1,
400 0,
401 SSL_ALL_CIPHERS
402 },
403 /* Cipher 65 */
404 {
405 1,
406 TLS1_TXT_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA,
407 TLS1_CK_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA,
408 SSL_kEDH|SSL_aDSS|SSL_RC4|SSL_SHA|SSL_EXP56|SSL_TLSV1,
409 0,
410 SSL_ALL_CIPHERS
411 },
412 /* Cipher 66 */
413 {
414 1,
415 TLS1_TXT_DHE_DSS_WITH_RC4_128_SHA,
416 TLS1_CK_DHE_DSS_WITH_RC4_128_SHA,
417 SSL_kEDH|SSL_aDSS|SSL_RC4|SSL_SHA|SSL_TLSV1,
418 0,
419 SSL_ALL_CIPHERS
420 },
421#endif
422
423/* end of list */
424 };
425
426static SSL3_ENC_METHOD SSLv3_enc_data={
427 ssl3_enc,
428 ssl3_mac,
429 ssl3_setup_key_block,
430 ssl3_generate_master_secret,
431 ssl3_change_cipher_state,
432 ssl3_final_finish_mac,
433 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
434 ssl3_cert_verify_mac,
435 SSL3_MD_CLIENT_FINISHED_CONST,4,
436 SSL3_MD_SERVER_FINISHED_CONST,4,
437 ssl3_alert_code,
438 };
439
440static SSL_METHOD SSLv3_data= {
441 SSL3_VERSION,
442 ssl3_new,
443 ssl3_clear,
444 ssl3_free,
445 ssl_undefined_function,
446 ssl_undefined_function,
447 ssl3_read,
448 ssl3_peek,
449 ssl3_write,
450 ssl3_shutdown,
451 ssl3_renegotiate,
452 ssl3_renegotiate_check,
453 ssl3_ctrl,
454 ssl3_ctx_ctrl,
455 ssl3_get_cipher_by_char,
456 ssl3_put_cipher_by_char,
457 ssl3_pending,
458 ssl3_num_ciphers,
459 ssl3_get_cipher,
460 ssl_bad_method,
461 ssl3_default_timeout,
462 &SSLv3_enc_data,
463 };
464
465static long ssl3_default_timeout(void)
466 {
467 /* 2 hours, the 24 hours mentioned in the SSLv3 spec
468 * is way too long for http, the cache would over fill */
469 return(60*60*2);
470 }
471
472SSL_METHOD *sslv3_base_method(void)
473 {
474 return(&SSLv3_data);
475 }
476
477int ssl3_num_ciphers(void)
478 {
479 return(SSL3_NUM_CIPHERS);
480 }
481
482SSL_CIPHER *ssl3_get_cipher(unsigned int u)
483 {
484 if (u < SSL3_NUM_CIPHERS)
485 return(&(ssl3_ciphers[SSL3_NUM_CIPHERS-1-u]));
486 else
487 return(NULL);
488 }
489
490/* The problem is that it may not be the correct record type */
491int ssl3_pending(SSL *s)
492 {
493 return(s->s3->rrec.length);
494 }
495
496int ssl3_new(SSL *s)
497 {
498 SSL3_CTX *s3;
499
500 if ((s3=(SSL3_CTX *)Malloc(sizeof(SSL3_CTX))) == NULL) goto err;
501 memset(s3,0,sizeof(SSL3_CTX));
502
503 s->s3=s3;
504 /*
505 s->s3->tmp.ca_names=NULL;
506 s->s3->tmp.key_block=NULL;
507 s->s3->tmp.key_block_length=0;
508 s->s3->rbuf.buf=NULL;
509 s->s3->wbuf.buf=NULL;
510 */
511
512 s->method->ssl_clear(s);
513 return(1);
514err:
515 return(0);
516 }
517
518void ssl3_free(SSL *s)
519 {
520 if(s == NULL)
521 return;
522
523 ssl3_cleanup_key_block(s);
524 if (s->s3->rbuf.buf != NULL)
525 Free(s->s3->rbuf.buf);
526 if (s->s3->wbuf.buf != NULL)
527 Free(s->s3->wbuf.buf);
528 if (s->s3->rrec.comp != NULL)
529 Free(s->s3->rrec.comp);
530#ifndef NO_DH
531 if (s->s3->tmp.dh != NULL)
532 DH_free(s->s3->tmp.dh);
533#endif
534 if (s->s3->tmp.ca_names != NULL)
535 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
536 memset(s->s3,0,sizeof(SSL3_CTX));
537 Free(s->s3);
538 s->s3=NULL;
539 }
540
541void ssl3_clear(SSL *s)
542 {
543 unsigned char *rp,*wp;
544
545 ssl3_cleanup_key_block(s);
546 if (s->s3->tmp.ca_names != NULL)
547 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
548
549 if (s->s3->rrec.comp != NULL)
550 {
551 Free(s->s3->rrec.comp);
552 s->s3->rrec.comp=NULL;
553 }
554
555 rp=s->s3->rbuf.buf;
556 wp=s->s3->wbuf.buf;
557
558 memset(s->s3,0,sizeof(SSL3_CTX));
559 if (rp != NULL) s->s3->rbuf.buf=rp;
560 if (wp != NULL) s->s3->wbuf.buf=wp;
561
562 ssl_free_wbio_buffer(s);
563
564 s->packet_length=0;
565 s->s3->renegotiate=0;
566 s->s3->total_renegotiations=0;
567 s->s3->num_renegotiations=0;
568 s->s3->in_read_app_data=0;
569 s->version=SSL3_VERSION;
570 }
571
572long ssl3_ctrl(SSL *s, int cmd, long larg, char *parg)
573 {
574 int ret=0;
575
576#if !defined(NO_DSA) || !defined(NO_RSA)
577 if (
578#ifndef NO_RSA
579 cmd == SSL_CTRL_SET_TMP_RSA ||
580 cmd == SSL_CTRL_SET_TMP_RSA_CB ||
581#endif
582#ifndef NO_DSA
583 cmd == SSL_CTRL_SET_TMP_DH ||
584 cmd == SSL_CTRL_SET_TMP_DH_CB ||
585#endif
586 0)
587 {
588 if (!ssl_cert_inst(&s->cert))
589 {
590 SSLerr(SSL_F_SSL3_CTRL, ERR_R_MALLOC_FAILURE);
591 return(0);
592 }
593 }
594#endif
595
596 switch (cmd)
597 {
598 case SSL_CTRL_GET_SESSION_REUSED:
599 ret=s->hit;
600 break;
601 case SSL_CTRL_GET_CLIENT_CERT_REQUEST:
602 break;
603 case SSL_CTRL_GET_NUM_RENEGOTIATIONS:
604 ret=s->s3->num_renegotiations;
605 break;
606 case SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS:
607 ret=s->s3->num_renegotiations;
608 s->s3->num_renegotiations=0;
609 break;
610 case SSL_CTRL_GET_TOTAL_RENEGOTIATIONS:
611 ret=s->s3->total_renegotiations;
612 break;
613 case SSL_CTRL_GET_FLAGS:
614 ret=(int)(s->s3->flags);
615 break;
616#ifndef NO_RSA
617 case SSL_CTRL_NEED_TMP_RSA:
618 if ((s->cert != NULL) && (s->cert->rsa_tmp == NULL) &&
619 ((s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
620 (EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8))))
621 ret = 1;
622 break;
623 case SSL_CTRL_SET_TMP_RSA:
624 {
625 RSA *rsa = (RSA *)parg;
626 if (rsa == NULL) {
627 SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
628 return(ret);
629 }
630 if ((rsa = RSAPrivateKey_dup(rsa)) == NULL) {
631 SSLerr(SSL_F_SSL3_CTRL, ERR_R_RSA_LIB);
632 return(ret);
633 }
634 if (s->cert->rsa_tmp != NULL)
635 RSA_free(s->cert->rsa_tmp);
636 s->cert->rsa_tmp = rsa;
637 ret = 1;
638 }
639 break;
640 case SSL_CTRL_SET_TMP_RSA_CB:
641 s->cert->rsa_tmp_cb = (RSA *(*)(SSL *, int, int))parg;
642 break;
643#endif
644#ifndef NO_DH
645 case SSL_CTRL_SET_TMP_DH:
646 {
647 DH *dh = (DH *)parg;
648 if (dh == NULL) {
649 SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
650 return(ret);
651 }
652 if ((dh = DHparams_dup(dh)) == NULL) {
653 SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
654 return(ret);
655 }
656 if (!DH_generate_key(dh)) {
657 DH_free(dh);
658 SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
659 return(ret);
660 }
661 if (s->cert->dh_tmp != NULL)
662 DH_free(s->cert->dh_tmp);
663 s->cert->dh_tmp = dh;
664 ret = 1;
665 }
666 break;
667 case SSL_CTRL_SET_TMP_DH_CB:
668 s->cert->dh_tmp_cb = (DH *(*)(SSL *, int, int))parg;
669 break;
670#endif
671 default:
672 break;
673 }
674 return(ret);
675 }
676
677long ssl3_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
678 {
679 CERT *cert;
680
681 cert=ctx->cert;
682
683 switch (cmd)
684 {
685#ifndef NO_RSA
686 case SSL_CTRL_NEED_TMP_RSA:
687 if ( (cert->rsa_tmp == NULL) &&
688 ((cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
689 (EVP_PKEY_size(cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8)))
690 )
691 return(1);
692 else
693 return(0);
694 /* break; */
695 case SSL_CTRL_SET_TMP_RSA:
696 {
697 RSA *rsa;
698 int i;
699
700 rsa=(RSA *)parg;
701 i=1;
702 if (rsa == NULL)
703 i=0;
704 else
705 {
706 if ((rsa=RSAPrivateKey_dup(rsa)) == NULL)
707 i=0;
708 }
709 if (!i)
710 {
711 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_RSA_LIB);
712 return(0);
713 }
714 else
715 {
716 if (cert->rsa_tmp != NULL)
717 RSA_free(cert->rsa_tmp);
718 cert->rsa_tmp=rsa;
719 return(1);
720 }
721 }
722 /* break; */
723 case SSL_CTRL_SET_TMP_RSA_CB:
724 cert->rsa_tmp_cb=(RSA *(*)(SSL *, int, int))parg;
725 break;
726#endif
727#ifndef NO_DH
728 case SSL_CTRL_SET_TMP_DH:
729 {
730 DH *new=NULL,*dh;
731 int rret=0;
732
733 dh=(DH *)parg;
734 if ( ((new=DHparams_dup(dh)) == NULL) ||
735 (!DH_generate_key(new)))
736 {
737 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_DH_LIB);
738 if (new != NULL) DH_free(new);
739 }
740 else
741 {
742 if (cert->dh_tmp != NULL)
743 DH_free(cert->dh_tmp);
744 cert->dh_tmp=new;
745 rret=1;
746 }
747 return(rret);
748 }
749 /*break; */
750 case SSL_CTRL_SET_TMP_DH_CB:
751 cert->dh_tmp_cb=(DH *(*)(SSL *, int, int))parg;
752 break;
753#endif
754 /* A Thawte special :-) */
755 case SSL_CTRL_EXTRA_CHAIN_CERT:
756 if (ctx->extra_certs == NULL)
757 {
758 if ((ctx->extra_certs=sk_X509_new_null()) == NULL)
759 return(0);
760 }
761 sk_X509_push(ctx->extra_certs,(X509 *)parg);
762 break;
763
764 default:
765 return(0);
766 }
767 return(1);
768 }
769
770/* This function needs to check if the ciphers required are actually
771 * available */
772SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p)
773 {
774 static int init=1;
775 static SSL_CIPHER *sorted[SSL3_NUM_CIPHERS];
776 SSL_CIPHER c,*cp= &c,**cpp;
777 unsigned long id;
778 int i;
779
780 if (init)
781 {
782 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
783
784 for (i=0; i<SSL3_NUM_CIPHERS; i++)
785 sorted[i]= &(ssl3_ciphers[i]);
786
787 qsort( (char *)sorted,
788 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
789 FP_ICC ssl_cipher_ptr_id_cmp);
790
791 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
792
793 init=0;
794 }
795
796 id=0x03000000L|((unsigned long)p[0]<<8L)|(unsigned long)p[1];
797 c.id=id;
798 cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
799 (char *)sorted,
800 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
801 (int (*)())ssl_cipher_ptr_id_cmp);
802 if ((cpp == NULL) || !(*cpp)->valid)
803 return(NULL);
804 else
805 return(*cpp);
806 }
807
808int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
809 {
810 long l;
811
812 if (p != NULL)
813 {
814 l=c->id;
815 if ((l & 0xff000000) != 0x03000000) return(0);
816 p[0]=((unsigned char)(l>> 8L))&0xFF;
817 p[1]=((unsigned char)(l ))&0xFF;
818 }
819 return(2);
820 }
821
822int ssl3_part_read(SSL *s, int i)
823 {
824 s->rwstate=SSL_READING;
825
826 if (i < 0)
827 {
828 return(i);
829 }
830 else
831 {
832 s->init_num+=i;
833 return(0);
834 }
835 }
836
837SSL_CIPHER *ssl3_choose_cipher(SSL *s, STACK_OF(SSL_CIPHER) *have,
838 STACK_OF(SSL_CIPHER) *pref)
839 {
840 SSL_CIPHER *c,*ret=NULL;
841 int i,j,ok;
842 CERT *cert;
843 unsigned long alg,mask,emask;
844
845 /* Let's see which ciphers we can support */
846 cert=s->cert;
847
848 sk_SSL_CIPHER_set_cmp_func(pref,ssl_cipher_ptr_id_cmp);
849
850#ifdef CIPHER_DEBUG
851 printf("Have:\n");
852 for(i=0 ; i < sk_num(pref) ; ++i)
853 {
854 c=(SSL_CIPHER *)sk_value(pref,i);
855 printf("%p:%s\n",c,c->name);
856 }
857#endif
858
859 for (i=0; i<sk_SSL_CIPHER_num(have); i++)
860 {
861 c=sk_SSL_CIPHER_value(have,i);
862
863 ssl_set_cert_masks(cert,c);
864 mask=cert->mask;
865 emask=cert->export_mask;
866
867 alg=c->algorithms&(SSL_MKEY_MASK|SSL_AUTH_MASK);
868 if (SSL_IS_EXPORT(c->algorithms))
869 {
870 ok=((alg & emask) == alg)?1:0;
871#ifdef CIPHER_DEBUG
872 printf("%d:[%08lX:%08lX]%p:%s (export)\n",ok,alg,emask,
873 c,c->name);
874#endif
875 }
876 else
877 {
878 ok=((alg & mask) == alg)?1:0;
879#ifdef CIPHER_DEBUG
880 printf("%d:[%08lX:%08lX]%p:%s\n",ok,alg,mask,c,
881 c->name);
882#endif
883 }
884
885 if (!ok) continue;
886
887 j=sk_SSL_CIPHER_find(pref,c);
888 if (j >= 0)
889 {
890 ret=sk_SSL_CIPHER_value(pref,j);
891 break;
892 }
893 }
894 return(ret);
895 }
896
897int ssl3_get_req_cert_type(SSL *s, unsigned char *p)
898 {
899 int ret=0;
900 unsigned long alg;
901
902 alg=s->s3->tmp.new_cipher->algorithms;
903
904#ifndef NO_DH
905 if (alg & (SSL_kDHr|SSL_kEDH))
906 {
907# ifndef NO_RSA
908 p[ret++]=SSL3_CT_RSA_FIXED_DH;
909# endif
910# ifndef NO_DSA
911 p[ret++]=SSL3_CT_DSS_FIXED_DH;
912# endif
913 }
914 if ((s->version == SSL3_VERSION) &&
915 (alg & (SSL_kEDH|SSL_kDHd|SSL_kDHr)))
916 {
917# ifndef NO_RSA
918 p[ret++]=SSL3_CT_RSA_EPHEMERAL_DH;
919# endif
920# ifndef NO_DSA
921 p[ret++]=SSL3_CT_DSS_EPHEMERAL_DH;
922# endif
923 }
924#endif /* !NO_DH */
925#ifndef NO_RSA
926 p[ret++]=SSL3_CT_RSA_SIGN;
927#endif
928#ifndef NO_DSA
929 p[ret++]=SSL3_CT_DSS_SIGN;
930#endif
931 return(ret);
932 }
933
934int ssl3_shutdown(SSL *s)
935 {
936
937 /* Don't do anything much if we have not done the handshake or
938 * we don't want to send messages :-) */
939 if ((s->quiet_shutdown) || (s->state == SSL_ST_BEFORE))
940 {
941 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
942 return(1);
943 }
944
945 if (!(s->shutdown & SSL_SENT_SHUTDOWN))
946 {
947 s->shutdown|=SSL_SENT_SHUTDOWN;
948#if 1
949 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_CLOSE_NOTIFY);
950#endif
951 /* our shutdown alert has been sent now, and if it still needs
952 * to be written, s->s3->alert_dispatch will be true */
953 }
954 else if (s->s3->alert_dispatch)
955 {
956 /* resend it if not sent */
957#if 1
958 ssl3_dispatch_alert(s);
959#endif
960 }
961 else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN))
962 {
963 /* If we are waiting for a close from our peer, we are closed */
964 ssl3_read_bytes(s,0,NULL,0);
965 }
966
967 if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) &&
968 !s->s3->alert_dispatch)
969 return(1);
970 else
971 return(0);
972 }
973
974int ssl3_write(SSL *s, const void *buf, int len)
975 {
976 int ret,n;
977
978#if 0
979 if (s->shutdown & SSL_SEND_SHUTDOWN)
980 {
981 s->rwstate=SSL_NOTHING;
982 return(0);
983 }
984#endif
985 clear_sys_error();
986 if (s->s3->renegotiate) ssl3_renegotiate_check(s);
987
988 /* This is an experimental flag that sends the
989 * last handshake message in the same packet as the first
990 * use data - used to see if it helps the TCP protocol during
991 * session-id reuse */
992 /* The second test is because the buffer may have been removed */
993 if ((s->s3->flags & SSL3_FLAGS_POP_BUFFER) && (s->wbio == s->bbio))
994 {
995 /* First time through, we write into the buffer */
996 if (s->s3->delay_buf_pop_ret == 0)
997 {
998 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
999 buf,len);
1000 if (ret <= 0) return(ret);
1001
1002 s->s3->delay_buf_pop_ret=ret;
1003 }
1004
1005 s->rwstate=SSL_WRITING;
1006 n=BIO_flush(s->wbio);
1007 if (n <= 0) return(n);
1008 s->rwstate=SSL_NOTHING;
1009
1010 /* We have flushed the buffer, so remove it */
1011 ssl_free_wbio_buffer(s);
1012 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
1013
1014 ret=s->s3->delay_buf_pop_ret;
1015 s->s3->delay_buf_pop_ret=0;
1016 }
1017 else
1018 {
1019 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
1020 buf,len);
1021 if (ret <= 0) return(ret);
1022 }
1023
1024 return(ret);
1025 }
1026
1027int ssl3_read(SSL *s, void *buf, int len)
1028 {
1029 int ret;
1030
1031 clear_sys_error();
1032 if (s->s3->renegotiate) ssl3_renegotiate_check(s);
1033 s->s3->in_read_app_data=1;
1034 ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
1035 if ((ret == -1) && (s->s3->in_read_app_data == 0))
1036 {
1037 ERR_get_error(); /* clear the error */
1038 s->s3->in_read_app_data=0;
1039 s->in_handshake++;
1040 ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
1041 s->in_handshake--;
1042 }
1043 else
1044 s->s3->in_read_app_data=0;
1045
1046 return(ret);
1047 }
1048
1049int ssl3_peek(SSL *s, char *buf, int len)
1050 {
1051 SSL3_RECORD *rr;
1052 int n;
1053
1054 rr= &(s->s3->rrec);
1055 if ((rr->length == 0) || (rr->type != SSL3_RT_APPLICATION_DATA))
1056 {
1057 n=ssl3_read(s,buf,1);
1058 if (n <= 0) return(n);
1059 rr->length++;
1060 rr->off--;
1061 }
1062
1063 if ((unsigned int)len > rr->length)
1064 n=rr->length;
1065 else
1066 n=len;
1067 memcpy(buf,&(rr->data[rr->off]),(unsigned int)n);
1068 return(n);
1069 }
1070
1071int ssl3_renegotiate(SSL *s)
1072 {
1073 if (s->handshake_func == NULL)
1074 return(1);
1075
1076 if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)
1077 return(0);
1078
1079 s->s3->renegotiate=1;
1080 return(1);
1081 }
1082
1083int ssl3_renegotiate_check(SSL *s)
1084 {
1085 int ret=0;
1086
1087 if (s->s3->renegotiate)
1088 {
1089 if ( (s->s3->rbuf.left == 0) &&
1090 (s->s3->wbuf.left == 0) &&
1091 !SSL_in_init(s))
1092 {
1093/*
1094if we are the server, and we have sent a 'RENEGOTIATE' message, we
1095need to go to SSL_ST_ACCEPT.
1096*/
1097 /* SSL_ST_ACCEPT */
1098 s->state=SSL_ST_RENEGOTIATE;
1099 s->s3->renegotiate=0;
1100 s->s3->num_renegotiations++;
1101 s->s3->total_renegotiations++;
1102 ret=1;
1103 }
1104 }
1105 return(ret);
1106 }
1107
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