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authorcvs2svn <admin@example.com>2001-10-01 21:58:55 +0000
committercvs2svn <admin@example.com>2001-10-01 21:58:55 +0000
commit62efc4ddcbdcc8c9f4f29b7b5ae76aa66f0b96e2 (patch)
treeaa05f6be64877f76547f1b54ad84f7bfcb291f5d /src/lib/libssl/s3_both.c
parentd7b0aad33e28dafbbef67eb5b84ecb05a844fc88 (diff)
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This commit was manufactured by cvs2git to create branch 'OPENBSD_3_0'.
Diffstat (limited to '')
-rw-r--r--src/lib/libssl/s3_both.c588
1 files changed, 0 insertions, 588 deletions
diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c
deleted file mode 100644
index 10d8d3b15a..0000000000
--- a/src/lib/libssl/s3_both.c
+++ /dev/null
@@ -1,588 +0,0 @@
1/* ssl/s3_both.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 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#include <string.h>
113#include <stdio.h>
114#include <openssl/buffer.h>
115#include <openssl/rand.h>
116#include <openssl/objects.h>
117#include <openssl/evp.h>
118#include <openssl/x509.h>
119#include "ssl_locl.h"
120
121/* send s->init_buf in records of type 'type' */
122int ssl3_do_write(SSL *s, int type)
123 {
124 int ret;
125
126 ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
127 s->init_num);
128 if (ret < 0) return(-1);
129 if (type == SSL3_RT_HANDSHAKE)
130 /* should not be done for 'Hello Request's, but in that case
131 * we'll ignore the result anyway */
132 ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
133
134 if (ret == s->init_num)
135 return(1);
136 s->init_off+=ret;
137 s->init_num-=ret;
138 return(0);
139 }
140
141int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
142 {
143 unsigned char *p,*d;
144 int i;
145 unsigned long l;
146
147 if (s->state == a)
148 {
149 d=(unsigned char *)s->init_buf->data;
150 p= &(d[4]);
151
152 i=s->method->ssl3_enc->final_finish_mac(s,
153 &(s->s3->finish_dgst1),
154 &(s->s3->finish_dgst2),
155 sender,slen,s->s3->tmp.finish_md);
156 s->s3->tmp.finish_md_len = i;
157 memcpy(p, s->s3->tmp.finish_md, i);
158 p+=i;
159 l=i;
160
161#ifdef WIN16
162 /* MSVC 1.5 does not clear the top bytes of the word unless
163 * I do this.
164 */
165 l&=0xffff;
166#endif
167
168 *(d++)=SSL3_MT_FINISHED;
169 l2n3(l,d);
170 s->init_num=(int)l+4;
171 s->init_off=0;
172
173 s->state=b;
174 }
175
176 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
177 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
178 }
179
180int ssl3_get_finished(SSL *s, int a, int b)
181 {
182 int al,i,ok;
183 long n;
184 unsigned char *p;
185
186 /* the mac has already been generated when we received the
187 * change cipher spec message and is in s->s3->tmp.peer_finish_md
188 */
189
190 n=ssl3_get_message(s,
191 a,
192 b,
193 SSL3_MT_FINISHED,
194 64, /* should actually be 36+4 :-) */
195 &ok);
196
197 if (!ok) return((int)n);
198
199 /* If this occurs, we have missed a message */
200 if (!s->s3->change_cipher_spec)
201 {
202 al=SSL_AD_UNEXPECTED_MESSAGE;
203 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
204 goto f_err;
205 }
206 s->s3->change_cipher_spec=0;
207
208 p = (unsigned char *)s->init_buf->data;
209 i = s->s3->tmp.peer_finish_md_len;
210
211 if (i != n)
212 {
213 al=SSL_AD_DECODE_ERROR;
214 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
215 goto f_err;
216 }
217
218 if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
219 {
220 al=SSL_AD_DECRYPT_ERROR;
221 SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
222 goto f_err;
223 }
224
225 return(1);
226f_err:
227 ssl3_send_alert(s,SSL3_AL_FATAL,al);
228 return(0);
229 }
230
231/* for these 2 messages, we need to
232 * ssl->enc_read_ctx re-init
233 * ssl->s3->read_sequence zero
234 * ssl->s3->read_mac_secret re-init
235 * ssl->session->read_sym_enc assign
236 * ssl->session->read_compression assign
237 * ssl->session->read_hash assign
238 */
239int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
240 {
241 unsigned char *p;
242
243 if (s->state == a)
244 {
245 p=(unsigned char *)s->init_buf->data;
246 *p=SSL3_MT_CCS;
247 s->init_num=1;
248 s->init_off=0;
249
250 s->state=b;
251 }
252
253 /* SSL3_ST_CW_CHANGE_B */
254 return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
255 }
256
257unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
258 {
259 unsigned char *p;
260 int n,i;
261 unsigned long l=7;
262 BUF_MEM *buf;
263 X509_STORE_CTX xs_ctx;
264 X509_OBJECT obj;
265
266 /* TLSv1 sends a chain with nothing in it, instead of an alert */
267 buf=s->init_buf;
268 if (!BUF_MEM_grow(buf,(int)(10)))
269 {
270 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
271 return(0);
272 }
273 if (x != NULL)
274 {
275 X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
276
277 for (;;)
278 {
279 n=i2d_X509(x,NULL);
280 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
281 {
282 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
283 return(0);
284 }
285 p=(unsigned char *)&(buf->data[l]);
286 l2n3(n,p);
287 i2d_X509(x,&p);
288 l+=n+3;
289 if (X509_NAME_cmp(X509_get_subject_name(x),
290 X509_get_issuer_name(x)) == 0) break;
291
292 i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
293 X509_get_issuer_name(x),&obj);
294 if (i <= 0) break;
295 x=obj.data.x509;
296 /* Count is one too high since the X509_STORE_get uped the
297 * ref count */
298 X509_free(x);
299 }
300
301 X509_STORE_CTX_cleanup(&xs_ctx);
302 }
303
304 /* Thawte special :-) */
305 if (s->ctx->extra_certs != NULL)
306 for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
307 {
308 x=sk_X509_value(s->ctx->extra_certs,i);
309 n=i2d_X509(x,NULL);
310 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
311 {
312 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
313 return(0);
314 }
315 p=(unsigned char *)&(buf->data[l]);
316 l2n3(n,p);
317 i2d_X509(x,&p);
318 l+=n+3;
319 }
320
321 l-=7;
322 p=(unsigned char *)&(buf->data[4]);
323 l2n3(l,p);
324 l+=3;
325 p=(unsigned char *)&(buf->data[0]);
326 *(p++)=SSL3_MT_CERTIFICATE;
327 l2n3(l,p);
328 l+=4;
329 return(l);
330 }
331
332/* Obtain handshake message of message type 'mt' (any if mt == -1),
333 * maximum acceptable body length 'max'.
334 * The first four bytes (msg_type and length) are read in state 'st1',
335 * the body is read in state 'stn'.
336 */
337long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
338 {
339 unsigned char *p;
340 unsigned long l;
341 long n;
342 int i,al;
343
344 if (s->s3->tmp.reuse_message)
345 {
346 s->s3->tmp.reuse_message=0;
347 if ((mt >= 0) && (s->s3->tmp.message_type != mt))
348 {
349 al=SSL_AD_UNEXPECTED_MESSAGE;
350 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
351 goto f_err;
352 }
353 *ok=1;
354 return((int)s->s3->tmp.message_size);
355 }
356
357 p=(unsigned char *)s->init_buf->data;
358
359 if (s->state == st1) /* s->init_num < 4 */
360 {
361 int skip_message;
362
363 do
364 {
365 while (s->init_num < 4)
366 {
367 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
368 4 - s->init_num, 0);
369 if (i <= 0)
370 {
371 s->rwstate=SSL_READING;
372 *ok = 0;
373 return i;
374 }
375 s->init_num+=i;
376 }
377
378 skip_message = 0;
379 if (!s->server)
380 if (p[0] == SSL3_MT_HELLO_REQUEST)
381 /* The server may always send 'Hello Request' messages --
382 * we are doing a handshake anyway now, so ignore them
383 * if their format is correct. Does not count for
384 * 'Finished' MAC. */
385 if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
386 skip_message = 1;
387 }
388 while (skip_message);
389
390 /* s->init_num == 4 */
391
392 if ((mt >= 0) && (*p != mt))
393 {
394 al=SSL_AD_UNEXPECTED_MESSAGE;
395 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
396 goto f_err;
397 }
398 if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
399 (st1 == SSL3_ST_SR_CERT_A) &&
400 (stn == SSL3_ST_SR_CERT_B))
401 {
402 /* At this point we have got an MS SGC second client
403 * hello (maybe we should always allow the client to
404 * start a new handshake?). We need to restart the mac.
405 * Don't increment {num,total}_renegotiations because
406 * we have not completed the handshake. */
407 ssl3_init_finished_mac(s);
408 }
409
410 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, 4);
411
412 s->s3->tmp.message_type= *(p++);
413
414 n2l3(p,l);
415 if (l > (unsigned long)max)
416 {
417 al=SSL_AD_ILLEGAL_PARAMETER;
418 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
419 goto f_err;
420 }
421 if (l && !BUF_MEM_grow(s->init_buf,(int)l))
422 {
423 SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
424 goto err;
425 }
426 s->s3->tmp.message_size=l;
427 s->state=stn;
428
429 s->init_num=0;
430 }
431
432 /* next state (stn) */
433 p=(unsigned char *)s->init_buf->data;
434 n=s->s3->tmp.message_size;
435 while (n > 0)
436 {
437 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
438 if (i <= 0)
439 {
440 s->rwstate=SSL_READING;
441 *ok = 0;
442 return i;
443 }
444 s->init_num += i;
445 n -= i;
446 }
447 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num);
448 *ok=1;
449 return s->init_num;
450f_err:
451 ssl3_send_alert(s,SSL3_AL_FATAL,al);
452err:
453 *ok=0;
454 return(-1);
455 }
456
457int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
458 {
459 EVP_PKEY *pk;
460 int ret= -1,i,j;
461
462 if (pkey == NULL)
463 pk=X509_get_pubkey(x);
464 else
465 pk=pkey;
466 if (pk == NULL) goto err;
467
468 i=pk->type;
469 if (i == EVP_PKEY_RSA)
470 {
471 ret=SSL_PKEY_RSA_ENC;
472 if (x != NULL)
473 {
474 j=X509_get_ext_count(x);
475 /* check to see if this is a signing only certificate */
476 /* EAY EAY EAY EAY */
477 }
478 }
479 else if (i == EVP_PKEY_DSA)
480 {
481 ret=SSL_PKEY_DSA_SIGN;
482 }
483 else if (i == EVP_PKEY_DH)
484 {
485 /* if we just have a key, we needs to be guess */
486
487 if (x == NULL)
488 ret=SSL_PKEY_DH_DSA;
489 else
490 {
491 j=X509_get_signature_type(x);
492 if (j == EVP_PKEY_RSA)
493 ret=SSL_PKEY_DH_RSA;
494 else if (j== EVP_PKEY_DSA)
495 ret=SSL_PKEY_DH_DSA;
496 else ret= -1;
497 }
498 }
499 else
500 ret= -1;
501
502err:
503 if(!pkey) EVP_PKEY_free(pk);
504 return(ret);
505 }
506
507int ssl_verify_alarm_type(long type)
508 {
509 int al;
510
511 switch(type)
512 {
513 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
514 case X509_V_ERR_UNABLE_TO_GET_CRL:
515 al=SSL_AD_UNKNOWN_CA;
516 break;
517 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
518 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
519 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
520 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
521 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
522 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
523 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
524 case X509_V_ERR_CERT_NOT_YET_VALID:
525 case X509_V_ERR_CRL_NOT_YET_VALID:
526 al=SSL_AD_BAD_CERTIFICATE;
527 break;
528 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
529 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
530 al=SSL_AD_DECRYPT_ERROR;
531 break;
532 case X509_V_ERR_CERT_HAS_EXPIRED:
533 case X509_V_ERR_CRL_HAS_EXPIRED:
534 al=SSL_AD_CERTIFICATE_EXPIRED;
535 break;
536 case X509_V_ERR_CERT_REVOKED:
537 al=SSL_AD_CERTIFICATE_REVOKED;
538 break;
539 case X509_V_ERR_OUT_OF_MEM:
540 al=SSL_AD_INTERNAL_ERROR;
541 break;
542 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
543 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
544 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
545 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
546 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
547 al=SSL_AD_UNKNOWN_CA;
548 break;
549 case X509_V_ERR_APPLICATION_VERIFICATION:
550 al=SSL_AD_HANDSHAKE_FAILURE;
551 break;
552 default:
553 al=SSL_AD_CERTIFICATE_UNKNOWN;
554 break;
555 }
556 return(al);
557 }
558
559int ssl3_setup_buffers(SSL *s)
560 {
561 unsigned char *p;
562 unsigned int extra;
563
564 if (s->s3->rbuf.buf == NULL)
565 {
566 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
567 extra=SSL3_RT_MAX_EXTRA;
568 else
569 extra=0;
570 if ((p=OPENSSL_malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
571 == NULL)
572 goto err;
573 s->s3->rbuf.buf=p;
574 }
575
576 if (s->s3->wbuf.buf == NULL)
577 {
578 if ((p=OPENSSL_malloc(SSL3_RT_MAX_PACKET_SIZE))
579 == NULL)
580 goto err;
581 s->s3->wbuf.buf=p;
582 }
583 s->packet= &(s->s3->rbuf.buf[0]);
584 return(1);
585err:
586 SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
587 return(0);
588 }
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