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diff --git a/src/lib/libssl/s3_both.c b/src/lib/libssl/s3_both.c
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1/* $OpenBSD: s3_both.c,v 1.37 2014/12/14 21:49:29 bcook Exp $ */
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) 1998-2002 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 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116
117#include <limits.h>
118#include <stdio.h>
119#include <string.h>
120
121#include "ssl_locl.h"
122
123#include <openssl/buffer.h>
124#include <openssl/evp.h>
125#include <openssl/objects.h>
126#include <openssl/x509.h>
127
128/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
129int
130ssl3_do_write(SSL *s, int type)
131{
132 int ret;
133
134 ret = ssl3_write_bytes(s, type, &s->init_buf->data[s->init_off],
135 s->init_num);
136 if (ret < 0)
137 return (-1);
138 if (type == SSL3_RT_HANDSHAKE)
139 /* should not be done for 'Hello Request's, but in that case
140 * we'll ignore the result anyway */
141 ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off], ret);
142
143 if (ret == s->init_num) {
144 if (s->msg_callback)
145 s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
146 return (1);
147 }
148 s->init_off += ret;
149 s->init_num -= ret;
150 return (0);
151}
152
153int
154ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
155{
156 unsigned char *p, *d;
157 unsigned long l;
158 int md_len;
159
160 if (s->state == a) {
161 d = (unsigned char *)s->init_buf->data;
162 p = &(d[4]);
163
164 md_len = s->method->ssl3_enc->finish_mac_length;
165 if (s->method->ssl3_enc->final_finish_mac(s, sender, slen,
166 s->s3->tmp.finish_md) != md_len)
167 return (0);
168 s->s3->tmp.finish_md_len = md_len;
169 memcpy(p, s->s3->tmp.finish_md, md_len);
170 p += md_len;
171 l = md_len;
172
173 /* Copy finished so we can use it for renegotiation checks. */
174 OPENSSL_assert(md_len <= EVP_MAX_MD_SIZE);
175 if (s->type == SSL_ST_CONNECT) {
176 memcpy(s->s3->previous_client_finished,
177 s->s3->tmp.finish_md, md_len);
178 s->s3->previous_client_finished_len = md_len;
179 } else {
180 memcpy(s->s3->previous_server_finished,
181 s->s3->tmp.finish_md, md_len);
182 s->s3->previous_server_finished_len = md_len;
183 }
184
185 *(d++) = SSL3_MT_FINISHED;
186 l2n3(l, d);
187 s->init_num = (int)l + 4;
188 s->init_off = 0;
189
190 s->state = b;
191 }
192
193 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
194 return (ssl3_do_write(s, SSL3_RT_HANDSHAKE));
195}
196
197/* ssl3_take_mac calculates the Finished MAC for the handshakes messages seen to far. */
198static void
199ssl3_take_mac(SSL *s)
200{
201 const char *sender;
202 int slen;
203 /* If no new cipher setup return immediately: other functions will
204 * set the appropriate error.
205 */
206 if (s->s3->tmp.new_cipher == NULL)
207 return;
208 if (s->state & SSL_ST_CONNECT) {
209 sender = s->method->ssl3_enc->server_finished_label;
210 slen = s->method->ssl3_enc->server_finished_label_len;
211 } else {
212 sender = s->method->ssl3_enc->client_finished_label;
213 slen = s->method->ssl3_enc->client_finished_label_len;
214 }
215
216 s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s,
217 sender, slen, s->s3->tmp.peer_finish_md);
218}
219
220int
221ssl3_get_finished(SSL *s, int a, int b)
222{
223 int al, ok, md_len;
224 long n;
225 unsigned char *p;
226
227
228 n = s->method->ssl_get_message(s, a, b, SSL3_MT_FINISHED,
229 64, /* should actually be 36+4 :-) */ &ok);
230
231 if (!ok)
232 return ((int)n);
233
234 /* If this occurs, we have missed a message */
235 if (!s->s3->change_cipher_spec) {
236 al = SSL_AD_UNEXPECTED_MESSAGE;
237 SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_GOT_A_FIN_BEFORE_A_CCS);
238 goto f_err;
239 }
240 s->s3->change_cipher_spec = 0;
241
242 md_len = s->method->ssl3_enc->finish_mac_length;
243 p = (unsigned char *)s->init_msg;
244
245 if (s->s3->tmp.peer_finish_md_len != md_len || n != md_len) {
246 al = SSL_AD_DECODE_ERROR;
247 SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_BAD_DIGEST_LENGTH);
248 goto f_err;
249 }
250
251 if (timingsafe_memcmp(p, s->s3->tmp.peer_finish_md, md_len) != 0) {
252 al = SSL_AD_DECRYPT_ERROR;
253 SSLerr(SSL_F_SSL3_GET_FINISHED, SSL_R_DIGEST_CHECK_FAILED);
254 goto f_err;
255 }
256
257 /* Copy finished so we can use it for renegotiation checks. */
258 OPENSSL_assert(md_len <= EVP_MAX_MD_SIZE);
259 if (s->type == SSL_ST_ACCEPT) {
260 memcpy(s->s3->previous_client_finished,
261 s->s3->tmp.peer_finish_md, md_len);
262 s->s3->previous_client_finished_len = md_len;
263 } else {
264 memcpy(s->s3->previous_server_finished,
265 s->s3->tmp.peer_finish_md, md_len);
266 s->s3->previous_server_finished_len = md_len;
267 }
268
269 return (1);
270f_err:
271 ssl3_send_alert(s, SSL3_AL_FATAL, al);
272 return (0);
273}
274
275/* for these 2 messages, we need to
276 * ssl->enc_read_ctx re-init
277 * ssl->s3->read_sequence zero
278 * ssl->s3->read_mac_secret re-init
279 * ssl->session->read_sym_enc assign
280 * ssl->session->read_hash assign
281 */
282int
283ssl3_send_change_cipher_spec(SSL *s, int a, int b)
284{
285 unsigned char *p;
286
287 if (s->state == a) {
288 p = (unsigned char *)s->init_buf->data;
289 *p = SSL3_MT_CCS;
290 s->init_num = 1;
291 s->init_off = 0;
292
293 s->state = b;
294 }
295
296 /* SSL3_ST_CW_CHANGE_B */
297 return (ssl3_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC));
298}
299
300static int
301ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x)
302{
303 int n;
304 unsigned char *p;
305
306 n = i2d_X509(x, NULL);
307 if (!BUF_MEM_grow_clean(buf, n + (*l) + 3)) {
308 SSLerr(SSL_F_SSL3_ADD_CERT_TO_BUF, ERR_R_BUF_LIB);
309 return (-1);
310 }
311 p = (unsigned char *)&(buf->data[*l]);
312 l2n3(n, p);
313 i2d_X509(x, &p);
314 *l += n + 3;
315
316 return (0);
317}
318
319unsigned long
320ssl3_output_cert_chain(SSL *s, X509 *x)
321{
322 unsigned char *p;
323 int i;
324 unsigned long l = 7;
325 BUF_MEM *buf;
326 int no_chain;
327
328 if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs)
329 no_chain = 1;
330 else
331 no_chain = 0;
332
333 /* TLSv1 sends a chain with nothing in it, instead of an alert */
334 buf = s->init_buf;
335 if (!BUF_MEM_grow_clean(buf, 10)) {
336 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_BUF_LIB);
337 return (0);
338 }
339 if (x != NULL) {
340 if (no_chain) {
341 if (ssl3_add_cert_to_buf(buf, &l, x))
342 return (0);
343 } else {
344 X509_STORE_CTX xs_ctx;
345
346 if (!X509_STORE_CTX_init(&xs_ctx, s->ctx->cert_store, x, NULL)) {
347 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_X509_LIB);
348 return (0);
349 }
350 X509_verify_cert(&xs_ctx);
351 /* Don't leave errors in the queue */
352 ERR_clear_error();
353 for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) {
354 x = sk_X509_value(xs_ctx.chain, i);
355
356 if (ssl3_add_cert_to_buf(buf, &l, x)) {
357 X509_STORE_CTX_cleanup(&xs_ctx);
358 return 0;
359 }
360 }
361 X509_STORE_CTX_cleanup(&xs_ctx);
362 }
363 }
364 /* Thawte special :-) */
365 for (i = 0; i < sk_X509_num(s->ctx->extra_certs); i++) {
366 x = sk_X509_value(s->ctx->extra_certs, i);
367 if (ssl3_add_cert_to_buf(buf, &l, x))
368 return (0);
369 }
370
371 l -= 7;
372 p = (unsigned char *)&(buf->data[4]);
373 l2n3(l, p);
374 l += 3;
375 p = (unsigned char *)&(buf->data[0]);
376 *(p++) = SSL3_MT_CERTIFICATE;
377 l2n3(l, p);
378 l += 4;
379 return (l);
380}
381
382/* Obtain handshake message of message type 'mt' (any if mt == -1),
383 * maximum acceptable body length 'max'.
384 * The first four bytes (msg_type and length) are read in state 'st1',
385 * the body is read in state 'stn'.
386 */
387long
388ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
389{
390 unsigned char *p;
391 unsigned long l;
392 long n;
393 int i, al;
394
395 if (s->s3->tmp.reuse_message) {
396 s->s3->tmp.reuse_message = 0;
397 if ((mt >= 0) && (s->s3->tmp.message_type != mt)) {
398 al = SSL_AD_UNEXPECTED_MESSAGE;
399 SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_UNEXPECTED_MESSAGE);
400 goto f_err;
401 }
402 *ok = 1;
403 s->init_msg = s->init_buf->data + 4;
404 s->init_num = (int)s->s3->tmp.message_size;
405 return s->init_num;
406 }
407
408 p = (unsigned char *)s->init_buf->data;
409
410 if (s->state == st1) /* s->init_num < 4 */
411 {
412 int skip_message;
413
414 do {
415 while (s->init_num < 4) {
416 i = s->method->ssl_read_bytes(s,
417 SSL3_RT_HANDSHAKE, &p[s->init_num],
418 4 - s->init_num, 0);
419 if (i <= 0) {
420 s->rwstate = SSL_READING;
421 *ok = 0;
422 return i;
423 }
424 s->init_num += i;
425 }
426
427 skip_message = 0;
428 if (!s->server && p[0] == SSL3_MT_HELLO_REQUEST) {
429 /*
430 * The server may always send 'Hello Request'
431 * messages -- we are doing a handshake anyway
432 * now, so ignore them if their format is
433 * correct. Does not count for 'Finished' MAC.
434 */
435 if (p[1] == 0 && p[2] == 0 &&p[3] == 0) {
436 s->init_num = 0;
437 skip_message = 1;
438
439 if (s->msg_callback)
440 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
441 }
442 }
443 }
444 while (skip_message);
445
446 /* s->init_num == 4 */
447
448 if ((mt >= 0) && (*p != mt)) {
449 al = SSL_AD_UNEXPECTED_MESSAGE;
450 SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_UNEXPECTED_MESSAGE);
451 goto f_err;
452 }
453 if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
454 (st1 == SSL3_ST_SR_CERT_A) && (stn == SSL3_ST_SR_CERT_B)) {
455 /* At this point we have got an MS SGC second client
456 * hello (maybe we should always allow the client to
457 * start a new handshake?). We need to restart the mac.
458 * Don't increment {num,total}_renegotiations because
459 * we have not completed the handshake. */
460 if (!ssl3_init_finished_mac(s)) {
461 SSLerr(SSL_F_SSL3_GET_MESSAGE,
462 ERR_R_MALLOC_FAILURE);
463 goto err;
464 }
465 }
466
467 s->s3->tmp.message_type= *(p++);
468
469 n2l3(p, l);
470 if (l > (unsigned long)max) {
471 al = SSL_AD_ILLEGAL_PARAMETER;
472 SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE);
473 goto f_err;
474 }
475 if (l && !BUF_MEM_grow_clean(s->init_buf, l + 4)) {
476 SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB);
477 goto err;
478 }
479 s->s3->tmp.message_size = l;
480 s->state = stn;
481
482 s->init_msg = s->init_buf->data + 4;
483 s->init_num = 0;
484 }
485
486 /* next state (stn) */
487 p = s->init_msg;
488 n = s->s3->tmp.message_size - s->init_num;
489 while (n > 0) {
490 i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE,
491 &p[s->init_num], n, 0);
492 if (i <= 0) {
493 s->rwstate = SSL_READING;
494 *ok = 0;
495 return i;
496 }
497 s->init_num += i;
498 n -= i;
499 }
500
501 /* If receiving Finished, record MAC of prior handshake messages for
502 * Finished verification. */
503 if (*s->init_buf->data == SSL3_MT_FINISHED)
504 ssl3_take_mac(s);
505
506 /* Feed this message into MAC computation. */
507 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
508 if (s->msg_callback)
509 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
510 *ok = 1;
511 return s->init_num;
512f_err:
513 ssl3_send_alert(s, SSL3_AL_FATAL, al);
514err:
515 *ok = 0;
516 return (-1);
517}
518
519int
520ssl_cert_type(X509 *x, EVP_PKEY *pkey)
521{
522 EVP_PKEY *pk;
523 int ret = -1, i;
524
525 if (pkey == NULL)
526 pk = X509_get_pubkey(x);
527 else
528 pk = pkey;
529 if (pk == NULL)
530 goto err;
531
532 i = pk->type;
533 if (i == EVP_PKEY_RSA) {
534 ret = SSL_PKEY_RSA_ENC;
535 } else if (i == EVP_PKEY_DSA) {
536 ret = SSL_PKEY_DSA_SIGN;
537 }
538 else if (i == EVP_PKEY_EC) {
539 ret = SSL_PKEY_ECC;
540 } else if (i == NID_id_GostR3410_2001 || i == NID_id_GostR3410_2001_cc) {
541 ret = SSL_PKEY_GOST01;
542 }
543err:
544 if (!pkey)
545 EVP_PKEY_free(pk);
546 return (ret);
547}
548
549int
550ssl_verify_alarm_type(long type)
551{
552 int al;
553
554 switch (type) {
555 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
556 case X509_V_ERR_UNABLE_TO_GET_CRL:
557 case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
558 al = SSL_AD_UNKNOWN_CA;
559 break;
560 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
561 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
562 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
563 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
564 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
565 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
566 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
567 case X509_V_ERR_CERT_NOT_YET_VALID:
568 case X509_V_ERR_CRL_NOT_YET_VALID:
569 case X509_V_ERR_CERT_UNTRUSTED:
570 case X509_V_ERR_CERT_REJECTED:
571 al = SSL_AD_BAD_CERTIFICATE;
572 break;
573 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
574 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
575 al = SSL_AD_DECRYPT_ERROR;
576 break;
577 case X509_V_ERR_CERT_HAS_EXPIRED:
578 case X509_V_ERR_CRL_HAS_EXPIRED:
579 al = SSL_AD_CERTIFICATE_EXPIRED;
580 break;
581 case X509_V_ERR_CERT_REVOKED:
582 al = SSL_AD_CERTIFICATE_REVOKED;
583 break;
584 case X509_V_ERR_OUT_OF_MEM:
585 al = SSL_AD_INTERNAL_ERROR;
586 break;
587 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
588 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
589 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
590 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
591 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
592 case X509_V_ERR_PATH_LENGTH_EXCEEDED:
593 case X509_V_ERR_INVALID_CA:
594 al = SSL_AD_UNKNOWN_CA;
595 break;
596 case X509_V_ERR_APPLICATION_VERIFICATION:
597 al = SSL_AD_HANDSHAKE_FAILURE;
598 break;
599 case X509_V_ERR_INVALID_PURPOSE:
600 al = SSL_AD_UNSUPPORTED_CERTIFICATE;
601 break;
602 default:
603 al = SSL_AD_CERTIFICATE_UNKNOWN;
604 break;
605 }
606 return (al);
607}
608
609int
610ssl3_setup_read_buffer(SSL *s)
611{
612 unsigned char *p;
613 size_t len, align, headerlen;
614
615 if (SSL_IS_DTLS(s))
616 headerlen = DTLS1_RT_HEADER_LENGTH;
617 else
618 headerlen = SSL3_RT_HEADER_LENGTH;
619
620 align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
621
622 if (s->s3->rbuf.buf == NULL) {
623 len = SSL3_RT_MAX_PLAIN_LENGTH +
624 SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
625 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) {
626 s->s3->init_extra = 1;
627 len += SSL3_RT_MAX_EXTRA;
628 }
629 if ((p = malloc(len)) == NULL)
630 goto err;
631 s->s3->rbuf.buf = p;
632 s->s3->rbuf.len = len;
633 }
634
635 s->packet = &(s->s3->rbuf.buf[0]);
636 return 1;
637
638err:
639 SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER, ERR_R_MALLOC_FAILURE);
640 return 0;
641}
642
643int
644ssl3_setup_write_buffer(SSL *s)
645{
646 unsigned char *p;
647 size_t len, align, headerlen;
648
649 if (SSL_IS_DTLS(s))
650 headerlen = DTLS1_RT_HEADER_LENGTH + 1;
651 else
652 headerlen = SSL3_RT_HEADER_LENGTH;
653
654 align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
655
656 if (s->s3->wbuf.buf == NULL) {
657 len = s->max_send_fragment +
658 SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
659 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
660 len += headerlen + align +
661 SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
662
663 if ((p = malloc(len)) == NULL)
664 goto err;
665 s->s3->wbuf.buf = p;
666 s->s3->wbuf.len = len;
667 }
668
669 return 1;
670
671err:
672 SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER, ERR_R_MALLOC_FAILURE);
673 return 0;
674}
675
676
677int
678ssl3_setup_buffers(SSL *s)
679{
680 if (!ssl3_setup_read_buffer(s))
681 return 0;
682 if (!ssl3_setup_write_buffer(s))
683 return 0;
684 return 1;
685}
686
687int
688ssl3_release_write_buffer(SSL *s)
689{
690 free(s->s3->wbuf.buf);
691 s->s3->wbuf.buf = NULL;
692 return 1;
693}
694
695int
696ssl3_release_read_buffer(SSL *s)
697{
698 free(s->s3->rbuf.buf);
699 s->s3->rbuf.buf = NULL;
700 return 1;
701}
702
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-15 00:53:17 +0000