2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
120 #include "ssl_locl.h"
121 #include <openssl/buffer.h>
122 #include <openssl/rand.h>
123 #include <openssl/objects.h>
124 #include <openssl/evp.h>
125 #include <openssl/x509.h>
128 * send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or
129 * SSL3_RT_CHANGE_CIPHER_SPEC)
131 int ssl3_do_write(SSL
*s
, int type
)
135 ret
= ssl3_write_bytes(s
, type
, &s
->init_buf
->data
[s
->init_off
],
139 if (type
== SSL3_RT_HANDSHAKE
)
141 * should not be done for 'Hello Request's, but in that case we'll
142 * ignore the result anyway
144 ssl3_finish_mac(s
, (unsigned char *)&s
->init_buf
->data
[s
->init_off
],
147 if (ret
== s
->init_num
) {
149 s
->msg_callback(1, s
->version
, type
, s
->init_buf
->data
,
150 (size_t)(s
->init_off
+ s
->init_num
), s
,
151 s
->msg_callback_arg
);
159 int ssl3_send_finished(SSL
*s
, int a
, int b
, const char *sender
, int slen
)
166 p
= ssl_handshake_start(s
);
168 i
= s
->method
->ssl3_enc
->final_finish_mac(s
,
170 s
->s3
->tmp
.finish_md
);
173 s
->s3
->tmp
.finish_md_len
= i
;
174 memcpy(p
, s
->s3
->tmp
.finish_md
, i
);
178 * Copy the finished so we can use it for renegotiation checks
180 if (s
->type
== SSL_ST_CONNECT
) {
181 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
182 memcpy(s
->s3
->previous_client_finished
, s
->s3
->tmp
.finish_md
, i
);
183 s
->s3
->previous_client_finished_len
= i
;
185 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
186 memcpy(s
->s3
->previous_server_finished
, s
->s3
->tmp
.finish_md
, i
);
187 s
->s3
->previous_server_finished_len
= i
;
190 if(!ssl_set_handshake_header(s
, SSL3_MT_FINISHED
, l
)) {
191 SSLerr(SSL_F_SSL3_SEND_FINISHED
, ERR_R_INTERNAL_ERROR
);
197 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
198 return ssl_do_write(s
);
201 #ifndef OPENSSL_NO_NEXTPROTONEG
203 * ssl3_take_mac calculates the Finished MAC for the handshakes messages seen
206 static void ssl3_take_mac(SSL
*s
)
211 * If no new cipher setup return immediately: other functions will set
212 * the appropriate error.
214 if (s
->s3
->tmp
.new_cipher
== NULL
)
216 if (s
->state
& SSL_ST_CONNECT
) {
217 sender
= s
->method
->ssl3_enc
->server_finished_label
;
218 slen
= s
->method
->ssl3_enc
->server_finished_label_len
;
220 sender
= s
->method
->ssl3_enc
->client_finished_label
;
221 slen
= s
->method
->ssl3_enc
->client_finished_label_len
;
224 s
->s3
->tmp
.peer_finish_md_len
= s
->method
->ssl3_enc
->final_finish_mac(s
,
227 s
->s3
->tmp
.peer_finish_md
);
231 int ssl3_get_finished(SSL
*s
, int a
, int b
)
237 #ifdef OPENSSL_NO_NEXTPROTONEG
239 * the mac has already been generated when we received the change cipher
240 * spec message and is in s->s3->tmp.peer_finish_md
244 /* 64 argument should actually be 36+4 :-) */
245 n
= s
->method
->ssl_get_message(s
, a
, b
, SSL3_MT_FINISHED
, 64, &ok
);
250 /* If this occurs, we have missed a message */
251 if (!s
->s3
->change_cipher_spec
) {
252 al
= SSL_AD_UNEXPECTED_MESSAGE
;
253 SSLerr(SSL_F_SSL3_GET_FINISHED
, SSL_R_GOT_A_FIN_BEFORE_A_CCS
);
256 s
->s3
->change_cipher_spec
= 0;
258 p
= (unsigned char *)s
->init_msg
;
259 i
= s
->s3
->tmp
.peer_finish_md_len
;
262 al
= SSL_AD_DECODE_ERROR
;
263 SSLerr(SSL_F_SSL3_GET_FINISHED
, SSL_R_BAD_DIGEST_LENGTH
);
267 if (CRYPTO_memcmp(p
, s
->s3
->tmp
.peer_finish_md
, i
) != 0) {
268 al
= SSL_AD_DECRYPT_ERROR
;
269 SSLerr(SSL_F_SSL3_GET_FINISHED
, SSL_R_DIGEST_CHECK_FAILED
);
274 * Copy the finished so we can use it for renegotiation checks
276 if (s
->type
== SSL_ST_ACCEPT
) {
277 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
278 memcpy(s
->s3
->previous_client_finished
, s
->s3
->tmp
.peer_finish_md
, i
);
279 s
->s3
->previous_client_finished_len
= i
;
281 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
282 memcpy(s
->s3
->previous_server_finished
, s
->s3
->tmp
.peer_finish_md
, i
);
283 s
->s3
->previous_server_finished_len
= i
;
288 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
293 * for these 2 messages, we need to
294 * ssl->enc_read_ctx re-init
295 * ssl->s3->read_sequence zero
296 * ssl->s3->read_mac_secret re-init
297 * ssl->session->read_sym_enc assign
298 * ssl->session->read_compression assign
299 * ssl->session->read_hash assign
301 int ssl3_send_change_cipher_spec(SSL
*s
, int a
, int b
)
306 p
= (unsigned char *)s
->init_buf
->data
;
314 /* SSL3_ST_CW_CHANGE_B */
315 return (ssl3_do_write(s
, SSL3_RT_CHANGE_CIPHER_SPEC
));
318 unsigned long ssl3_output_cert_chain(SSL
*s
, CERT_PKEY
*cpk
)
321 unsigned long l
= 3 + SSL_HM_HEADER_LENGTH(s
);
323 if (!ssl_add_cert_chain(s
, cpk
, &l
))
326 l
-= 3 + SSL_HM_HEADER_LENGTH(s
);
327 p
= ssl_handshake_start(s
);
331 if(!ssl_set_handshake_header(s
, SSL3_MT_CERTIFICATE
, l
)) {
332 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN
, ERR_R_INTERNAL_ERROR
);
335 return l
+ SSL_HM_HEADER_LENGTH(s
);
339 * Obtain handshake message of message type 'mt' (any if mt == -1), maximum
340 * acceptable body length 'max'. The first four bytes (msg_type and length)
341 * are read in state 'st1', the body is read in state 'stn'.
343 long ssl3_get_message(SSL
*s
, int st1
, int stn
, int mt
, long max
, int *ok
)
350 if (s
->s3
->tmp
.reuse_message
) {
351 s
->s3
->tmp
.reuse_message
= 0;
352 if ((mt
>= 0) && (s
->s3
->tmp
.message_type
!= mt
)) {
353 al
= SSL_AD_UNEXPECTED_MESSAGE
;
354 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_UNEXPECTED_MESSAGE
);
359 s
->init_msg
= s
->init_buf
->data
+ 4;
360 s
->init_num
= (int)s
->s3
->tmp
.message_size
;
364 p
= (unsigned char *)s
->init_buf
->data
;
366 if (s
->state
== st1
) { /* s->init_num < 4 */
370 while (s
->init_num
< 4) {
371 i
= s
->method
->ssl_read_bytes(s
, SSL3_RT_HANDSHAKE
,
375 s
->rwstate
= SSL_READING
;
384 if (p
[0] == SSL3_MT_HELLO_REQUEST
)
386 * The server may always send 'Hello Request' messages --
387 * we are doing a handshake anyway now, so ignore them if
388 * their format is correct. Does not count for 'Finished'
391 if (p
[1] == 0 && p
[2] == 0 && p
[3] == 0) {
396 s
->msg_callback(0, s
->version
, SSL3_RT_HANDSHAKE
,
397 p
, 4, s
, s
->msg_callback_arg
);
400 while (skip_message
);
402 /* s->init_num == 4 */
404 if ((mt
>= 0) && (*p
!= mt
)) {
405 al
= SSL_AD_UNEXPECTED_MESSAGE
;
406 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_UNEXPECTED_MESSAGE
);
410 s
->s3
->tmp
.message_type
= *(p
++);
413 if (l
> (unsigned long)max
) {
414 al
= SSL_AD_ILLEGAL_PARAMETER
;
415 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_EXCESSIVE_MESSAGE_SIZE
);
418 if (l
> (INT_MAX
- 4)) { /* BUF_MEM_grow takes an 'int' parameter */
419 al
= SSL_AD_ILLEGAL_PARAMETER
;
420 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_EXCESSIVE_MESSAGE_SIZE
);
423 if (l
&& !BUF_MEM_grow_clean(s
->init_buf
, (int)l
+ 4)) {
424 SSLerr(SSL_F_SSL3_GET_MESSAGE
, ERR_R_BUF_LIB
);
427 s
->s3
->tmp
.message_size
= l
;
430 s
->init_msg
= s
->init_buf
->data
+ 4;
434 /* next state (stn) */
436 n
= s
->s3
->tmp
.message_size
- s
->init_num
;
438 i
= s
->method
->ssl_read_bytes(s
, SSL3_RT_HANDSHAKE
, &p
[s
->init_num
],
441 s
->rwstate
= SSL_READING
;
449 #ifndef OPENSSL_NO_NEXTPROTONEG
451 * If receiving Finished, record MAC of prior handshake messages for
452 * Finished verification.
454 if (*s
->init_buf
->data
== SSL3_MT_FINISHED
)
458 /* Feed this message into MAC computation. */
459 ssl3_finish_mac(s
, (unsigned char *)s
->init_buf
->data
, s
->init_num
+ 4);
461 s
->msg_callback(0, s
->version
, SSL3_RT_HANDSHAKE
, s
->init_buf
->data
,
462 (size_t)s
->init_num
+ 4, s
, s
->msg_callback_arg
);
466 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
472 int ssl_cert_type(X509
*x
, EVP_PKEY
*pkey
)
478 pk
= X509_get_pubkey(x
);
485 if (i
== EVP_PKEY_RSA
) {
486 ret
= SSL_PKEY_RSA_ENC
;
487 } else if (i
== EVP_PKEY_DSA
) {
488 ret
= SSL_PKEY_DSA_SIGN
;
490 #ifndef OPENSSL_NO_EC
491 else if (i
== EVP_PKEY_EC
) {
495 else if (i
== NID_id_GostR3410_94
|| i
== NID_id_GostR3410_94_cc
) {
496 ret
= SSL_PKEY_GOST94
;
497 } else if (i
== NID_id_GostR3410_2001
|| i
== NID_id_GostR3410_2001_cc
) {
498 ret
= SSL_PKEY_GOST01
;
499 } else if (x
&& (i
== EVP_PKEY_DH
|| i
== EVP_PKEY_DHX
)) {
501 * For DH two cases: DH certificate signed with RSA and DH
502 * certificate signed with DSA.
504 i
= X509_certificate_type(x
, pk
);
506 ret
= SSL_PKEY_DH_RSA
;
507 else if (i
& EVP_PKS_DSA
)
508 ret
= SSL_PKEY_DH_DSA
;
517 int ssl_verify_alarm_type(long type
)
522 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
:
523 case X509_V_ERR_UNABLE_TO_GET_CRL
:
524 case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
:
525 al
= SSL_AD_UNKNOWN_CA
;
527 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE
:
528 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE
:
529 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY
:
530 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD
:
531 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD
:
532 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD
:
533 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD
:
534 case X509_V_ERR_CERT_NOT_YET_VALID
:
535 case X509_V_ERR_CRL_NOT_YET_VALID
:
536 case X509_V_ERR_CERT_UNTRUSTED
:
537 case X509_V_ERR_CERT_REJECTED
:
538 al
= SSL_AD_BAD_CERTIFICATE
;
540 case X509_V_ERR_CERT_SIGNATURE_FAILURE
:
541 case X509_V_ERR_CRL_SIGNATURE_FAILURE
:
542 al
= SSL_AD_DECRYPT_ERROR
;
544 case X509_V_ERR_CERT_HAS_EXPIRED
:
545 case X509_V_ERR_CRL_HAS_EXPIRED
:
546 al
= SSL_AD_CERTIFICATE_EXPIRED
;
548 case X509_V_ERR_CERT_REVOKED
:
549 al
= SSL_AD_CERTIFICATE_REVOKED
;
551 case X509_V_ERR_OUT_OF_MEM
:
552 al
= SSL_AD_INTERNAL_ERROR
;
554 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
:
555 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
:
556 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
:
557 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE
:
558 case X509_V_ERR_CERT_CHAIN_TOO_LONG
:
559 case X509_V_ERR_PATH_LENGTH_EXCEEDED
:
560 case X509_V_ERR_INVALID_CA
:
561 al
= SSL_AD_UNKNOWN_CA
;
563 case X509_V_ERR_APPLICATION_VERIFICATION
:
564 al
= SSL_AD_HANDSHAKE_FAILURE
;
566 case X509_V_ERR_INVALID_PURPOSE
:
567 al
= SSL_AD_UNSUPPORTED_CERTIFICATE
;
570 al
= SSL_AD_CERTIFICATE_UNKNOWN
;
576 int ssl3_setup_read_buffer(SSL
*s
)
579 size_t len
, align
= 0, headerlen
;
582 b
= RECORD_LAYER_get_rbuf(&s
->rlayer
);
584 if (SSL_version(s
) == DTLS1_VERSION
|| SSL_version(s
) == DTLS1_BAD_VER
)
585 headerlen
= DTLS1_RT_HEADER_LENGTH
;
587 headerlen
= SSL3_RT_HEADER_LENGTH
;
589 #if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
590 align
= (-SSL3_RT_HEADER_LENGTH
) & (SSL3_ALIGN_PAYLOAD
- 1);
593 if (b
->buf
== NULL
) {
594 len
= SSL3_RT_MAX_PLAIN_LENGTH
595 + SSL3_RT_MAX_ENCRYPTED_OVERHEAD
+ headerlen
+ align
;
596 if (s
->options
& SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER
) {
597 s
->s3
->init_extra
= 1;
598 len
+= SSL3_RT_MAX_EXTRA
;
600 #ifndef OPENSSL_NO_COMP
601 if (ssl_allow_compression(s
))
602 len
+= SSL3_RT_MAX_COMPRESSED_OVERHEAD
;
604 if ((p
= OPENSSL_malloc(len
)) == NULL
)
610 s
->packet
= &(b
->buf
[0]);
614 SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER
, ERR_R_MALLOC_FAILURE
);
618 int ssl3_setup_write_buffer(SSL
*s
)
621 size_t len
, align
= 0, headerlen
;
624 wb
= RECORD_LAYER_get_wbuf(&s
->rlayer
);
626 if (SSL_version(s
) == DTLS1_VERSION
|| SSL_version(s
) == DTLS1_BAD_VER
)
627 headerlen
= DTLS1_RT_HEADER_LENGTH
+ 1;
629 headerlen
= SSL3_RT_HEADER_LENGTH
;
631 #if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
632 align
= (-SSL3_RT_HEADER_LENGTH
) & (SSL3_ALIGN_PAYLOAD
- 1);
635 if (wb
->buf
== NULL
) {
636 len
= s
->max_send_fragment
637 + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD
+ headerlen
+ align
;
638 #ifndef OPENSSL_NO_COMP
639 if (ssl_allow_compression(s
))
640 len
+= SSL3_RT_MAX_COMPRESSED_OVERHEAD
;
642 if (!(s
->options
& SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
))
643 len
+= headerlen
+ align
+ SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD
;
645 if ((p
= OPENSSL_malloc(len
)) == NULL
)
654 SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER
, ERR_R_MALLOC_FAILURE
);
658 int ssl3_setup_buffers(SSL
*s
)
660 if (!ssl3_setup_read_buffer(s
))
662 if (!ssl3_setup_write_buffer(s
))
667 int ssl3_release_write_buffer(SSL
*s
)
671 wb
= RECORD_LAYER_get_wbuf(&s
->rlayer
);
673 if (wb
->buf
!= NULL
) {
674 OPENSSL_free(wb
->buf
);
680 int ssl3_release_read_buffer(SSL
*s
)
684 b
= RECORD_LAYER_get_rbuf(&s
->rlayer
);
685 if (b
->buf
!= NULL
) {
686 OPENSSL_free(b
->buf
);
692 int ssl_allow_compression(SSL
*s
)
694 if (s
->options
& SSL_OP_NO_COMPRESSION
)
696 return ssl_security(s
, SSL_SECOP_COMPRESSION
, 0, 0, NULL
);