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
)
162 if (tls_construct_finished(s
, sender
, slen
) == 0) {
169 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
170 return ssl_do_write(s
);
173 int tls_construct_finished(SSL
*s
, const char *sender
, int slen
)
179 p
= ssl_handshake_start(s
);
181 i
= s
->method
->ssl3_enc
->final_finish_mac(s
,
183 s
->s3
->tmp
.finish_md
);
186 s
->s3
->tmp
.finish_md_len
= i
;
187 memcpy(p
, s
->s3
->tmp
.finish_md
, i
);
191 * Copy the finished so we can use it for renegotiation checks
193 if (s
->type
== SSL_ST_CONNECT
) {
194 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
195 memcpy(s
->s3
->previous_client_finished
, s
->s3
->tmp
.finish_md
, i
);
196 s
->s3
->previous_client_finished_len
= i
;
198 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
199 memcpy(s
->s3
->previous_server_finished
, s
->s3
->tmp
.finish_md
, i
);
200 s
->s3
->previous_server_finished_len
= i
;
203 if (!ssl_set_handshake_header(s
, SSL3_MT_FINISHED
, l
)) {
204 SSLerr(SSL_F_TLS_CONSTRUCT_FINISHED
, ERR_R_INTERNAL_ERROR
);
211 #ifndef OPENSSL_NO_NEXTPROTONEG
213 * ssl3_take_mac calculates the Finished MAC for the handshakes messages seen
216 static void ssl3_take_mac(SSL
*s
)
221 * If no new cipher setup return immediately: other functions will set
222 * the appropriate error.
224 if (s
->s3
->tmp
.new_cipher
== NULL
)
226 if (s
->state
& SSL_ST_CONNECT
) {
227 sender
= s
->method
->ssl3_enc
->server_finished_label
;
228 slen
= s
->method
->ssl3_enc
->server_finished_label_len
;
230 sender
= s
->method
->ssl3_enc
->client_finished_label
;
231 slen
= s
->method
->ssl3_enc
->client_finished_label_len
;
234 s
->s3
->tmp
.peer_finish_md_len
= s
->method
->ssl3_enc
->final_finish_mac(s
,
237 s
->s3
->tmp
.peer_finish_md
);
241 int ssl3_get_change_cipher_spec(SSL
*s
, int a
, int b
)
246 n
= s
->method
->ssl_get_message(s
, a
, b
, SSL3_MT_CHANGE_CIPHER_SPEC
, 1, &ok
);
251 if (tls_process_change_cipher_spec(s
, n
) == 0) {
259 enum MSG_PROCESS_RETURN
tls_process_change_cipher_spec(SSL
*s
, long n
)
264 * 'Change Cipher Spec' is just a single byte, which should already have
265 * been consumed by ssl_get_message() so there should be no bytes left,
266 * unless we're using DTLS1_BAD_VER, which has an extra 2 bytes
268 if (SSL_IS_DTLS(s
)) {
269 if ((s
->version
== DTLS1_BAD_VER
&& n
!= DTLS1_CCS_HEADER_LENGTH
+ 1)
270 || (s
->version
!= DTLS1_BAD_VER
271 && n
!= DTLS1_CCS_HEADER_LENGTH
- 1)) {
272 al
= SSL_AD_ILLEGAL_PARAMETER
;
273 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC
,
274 SSL_R_BAD_CHANGE_CIPHER_SPEC
);
279 al
= SSL_AD_ILLEGAL_PARAMETER
;
280 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC
,
281 SSL_R_BAD_CHANGE_CIPHER_SPEC
);
286 /* Check we have a cipher to change to */
287 if (s
->s3
->tmp
.new_cipher
== NULL
) {
288 al
= SSL_AD_UNEXPECTED_MESSAGE
;
289 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC
, SSL_R_CCS_RECEIVED_EARLY
);
293 s
->s3
->change_cipher_spec
= 1;
294 if (!ssl3_do_change_cipher_spec(s
)) {
295 al
= SSL_AD_INTERNAL_ERROR
;
296 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC
, ERR_R_INTERNAL_ERROR
);
300 if (SSL_IS_DTLS(s
)) {
301 dtls1_reset_seq_numbers(s
, SSL3_CC_READ
);
303 if (s
->version
== DTLS1_BAD_VER
)
304 s
->d1
->handshake_read_seq
++;
306 #ifndef OPENSSL_NO_SCTP
308 * Remember that a CCS has been received, so that an old key of
309 * SCTP-Auth can be deleted when a CCS is sent. Will be ignored if no
312 BIO_ctrl(SSL_get_wbio(s
), BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD
, 1, NULL
);
316 return MSG_PROCESS_CONTINUE_READING
;
318 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
320 return MSG_PROCESS_ERROR
;
324 int ssl3_get_finished(SSL
*s
, int a
, int b
)
329 #ifdef OPENSSL_NO_NEXTPROTONEG
331 * the mac has already been generated when we received the change cipher
332 * spec message and is in s->s3->tmp.peer_finish_md
336 /* 64 argument should actually be 36+4 :-) */
337 n
= s
->method
->ssl_get_message(s
, a
, b
, SSL3_MT_FINISHED
, 64, &ok
);
342 return tls_process_finished(s
, (unsigned long)n
);
345 enum MSG_PROCESS_RETURN
tls_process_finished(SSL
*s
, unsigned long n
)
350 /* If this occurs, we have missed a message */
351 if (!s
->s3
->change_cipher_spec
) {
352 al
= SSL_AD_UNEXPECTED_MESSAGE
;
353 SSLerr(SSL_F_TLS_PROCESS_FINISHED
, SSL_R_GOT_A_FIN_BEFORE_A_CCS
);
356 s
->s3
->change_cipher_spec
= 0;
358 p
= (unsigned char *)s
->init_msg
;
359 i
= s
->s3
->tmp
.peer_finish_md_len
;
361 if (i
< 0 || (unsigned long)i
!= n
) {
362 al
= SSL_AD_DECODE_ERROR
;
363 SSLerr(SSL_F_TLS_PROCESS_FINISHED
, SSL_R_BAD_DIGEST_LENGTH
);
367 if (CRYPTO_memcmp(p
, s
->s3
->tmp
.peer_finish_md
, i
) != 0) {
368 al
= SSL_AD_DECRYPT_ERROR
;
369 SSLerr(SSL_F_TLS_PROCESS_FINISHED
, SSL_R_DIGEST_CHECK_FAILED
);
374 * Copy the finished so we can use it for renegotiation checks
376 if (s
->type
== SSL_ST_ACCEPT
) {
377 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
378 memcpy(s
->s3
->previous_client_finished
, s
->s3
->tmp
.peer_finish_md
, i
);
379 s
->s3
->previous_client_finished_len
= i
;
381 OPENSSL_assert(i
<= EVP_MAX_MD_SIZE
);
382 memcpy(s
->s3
->previous_server_finished
, s
->s3
->tmp
.peer_finish_md
, i
);
383 s
->s3
->previous_server_finished_len
= i
;
386 return MSG_PROCESS_CONTINUE_PROCESSING
;
388 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
390 return MSG_PROCESS_ERROR
;
394 * for these 2 messages, we need to
395 * ssl->enc_read_ctx re-init
396 * ssl->rlayer.read_sequence zero
397 * ssl->s3->read_mac_secret re-init
398 * ssl->session->read_sym_enc assign
399 * ssl->session->read_compression assign
400 * ssl->session->read_hash assign
402 int ssl3_send_change_cipher_spec(SSL
*s
, int a
, int b
)
405 if(tls_construct_change_cipher_spec(s
) == 0) {
413 /* SSL3_ST_CW_CHANGE_B */
414 return (ssl3_do_write(s
, SSL3_RT_CHANGE_CIPHER_SPEC
));
417 int tls_construct_change_cipher_spec(SSL
*s
)
421 p
= (unsigned char *)s
->init_buf
->data
;
429 unsigned long ssl3_output_cert_chain(SSL
*s
, CERT_PKEY
*cpk
)
432 unsigned long l
= 3 + SSL_HM_HEADER_LENGTH(s
);
434 if (!ssl_add_cert_chain(s
, cpk
, &l
))
437 l
-= 3 + SSL_HM_HEADER_LENGTH(s
);
438 p
= ssl_handshake_start(s
);
442 if (!ssl_set_handshake_header(s
, SSL3_MT_CERTIFICATE
, l
)) {
443 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN
, ERR_R_INTERNAL_ERROR
);
446 return l
+ SSL_HM_HEADER_LENGTH(s
);
449 enum WORK_STATE
tls_finish_handshake(SSL
*s
, enum WORK_STATE wst
)
451 void (*cb
) (const SSL
*ssl
, int type
, int val
) = NULL
;
453 #ifndef OPENSSL_NO_SCTP
454 if (SSL_IS_DTLS(s
) && BIO_dgram_is_sctp(SSL_get_wbio(s
))) {
456 ret
= dtls_wait_for_dry(s
);
457 if (ret
!= WORK_FINISHED_CONTINUE
)
462 /* clean a few things up */
463 ssl3_cleanup_key_block(s
);
464 BUF_MEM_free(s
->init_buf
);
467 ssl_free_wbio_buffer(s
);
471 if (!s
->server
|| s
->renegotiate
== 2) {
472 /* skipped if we just sent a HelloRequest */
480 ssl_update_cache(s
, SSL_SESS_CACHE_SERVER
);
482 s
->ctx
->stats
.sess_accept_good
++;
483 s
->handshake_func
= ssl3_accept
;
485 ssl_update_cache(s
, SSL_SESS_CACHE_CLIENT
);
487 s
->ctx
->stats
.sess_hit
++;
489 s
->handshake_func
= ssl3_connect
;
490 s
->ctx
->stats
.sess_connect_good
++;
493 if (s
->info_callback
!= NULL
)
494 cb
= s
->info_callback
;
495 else if (s
->ctx
->info_callback
!= NULL
)
496 cb
= s
->ctx
->info_callback
;
499 cb(s
, SSL_CB_HANDSHAKE_DONE
, 1);
501 if (SSL_IS_DTLS(s
)) {
502 /* done with handshaking */
503 s
->d1
->handshake_read_seq
= 0;
504 s
->d1
->handshake_write_seq
= 0;
505 s
->d1
->next_handshake_write_seq
= 0;
509 return WORK_FINISHED_STOP
;
514 * Obtain handshake message of message type 'mt' (any if mt == -1), maximum
515 * acceptable body length 'max'. The first four bytes (msg_type and length)
516 * are read in state 'st1', the body is read in state 'stn'.
518 long ssl3_get_message(SSL
*s
, int st1
, int stn
, int mt
, long max
, int *ok
)
524 if (s
->s3
->tmp
.reuse_message
) {
525 s
->s3
->tmp
.reuse_message
= 0;
526 if ((mt
>= 0) && (s
->s3
->tmp
.message_type
!= mt
)) {
527 al
= SSL_AD_UNEXPECTED_MESSAGE
;
528 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_UNEXPECTED_MESSAGE
);
533 s
->init_msg
= s
->init_buf
->data
+ SSL3_HM_HEADER_LENGTH
;
534 s
->init_num
= (int)s
->s3
->tmp
.message_size
;
538 p
= (unsigned char *)s
->init_buf
->data
;
540 if (s
->state
== st1
) {
541 if (tls_get_message_header(s
, &mtin
) == 0) {
548 && mtin
== SSL3_MT_CHANGE_CIPHER_SPEC
549 && (mt
< 0 || mt
== SSL3_MT_CHANGE_CIPHER_SPEC
)) {
550 if (*p
!= SSL3_MT_CCS
) {
551 al
= SSL_AD_UNEXPECTED_MESSAGE
;
552 SSLerr(SSL_F_SSL3_GET_MESSAGE
,
553 SSL_R_UNEXPECTED_MESSAGE
);
557 s
->s3
->tmp
.message_type
= SSL3_MT_CHANGE_CIPHER_SPEC
;
558 s
->s3
->tmp
.message_size
= s
->init_num
;
561 s
->msg_callback(0, s
->version
,
562 SSL3_RT_CHANGE_CIPHER_SPEC
, p
, 1, s
,
563 s
->msg_callback_arg
);
566 if (s
->s3
->tmp
.message_size
> (unsigned long)max
) {
567 al
= SSL_AD_ILLEGAL_PARAMETER
;
568 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_EXCESSIVE_MESSAGE_SIZE
);
571 if ((mt
>= 0) && (mtin
!= mt
)) {
572 al
= SSL_AD_UNEXPECTED_MESSAGE
;
573 SSLerr(SSL_F_SSL3_GET_MESSAGE
, SSL_R_UNEXPECTED_MESSAGE
);
578 /* next state (stn) */
579 if (tls_get_message_body(s
, (unsigned long *)&n
) == 0) {
587 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
593 int tls_get_message_header(SSL
*s
, int *mt
)
595 /* s->init_num < SSL3_HM_HEADER_LENGTH */
596 int skip_message
, i
, recvd_type
, al
;
600 p
= (unsigned char *)s
->init_buf
->data
;
603 while (s
->init_num
< SSL3_HM_HEADER_LENGTH
) {
604 i
= s
->method
->ssl_read_bytes(s
, SSL3_RT_HANDSHAKE
, &recvd_type
,
605 &p
[s
->init_num
], SSL3_HM_HEADER_LENGTH
- s
->init_num
, 0);
607 s
->rwstate
= SSL_READING
;
610 if (recvd_type
== SSL3_RT_CHANGE_CIPHER_SPEC
) {
611 s
->s3
->tmp
.message_type
= *mt
= SSL3_MT_CHANGE_CIPHER_SPEC
;
613 s
->s3
->tmp
.message_size
= i
;
615 } else if (recvd_type
!= SSL3_RT_HANDSHAKE
) {
616 al
= SSL_AD_UNEXPECTED_MESSAGE
;
617 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER
, SSL_R_CCS_RECEIVED_EARLY
);
625 if (p
[0] == SSL3_MT_HELLO_REQUEST
)
627 * The server may always send 'Hello Request' messages --
628 * we are doing a handshake anyway now, so ignore them if
629 * their format is correct. Does not count for 'Finished'
632 if (p
[1] == 0 && p
[2] == 0 && p
[3] == 0) {
637 s
->msg_callback(0, s
->version
, SSL3_RT_HANDSHAKE
,
638 p
, SSL3_HM_HEADER_LENGTH
, s
,
639 s
->msg_callback_arg
);
641 } while (skip_message
);
642 /* s->init_num == SSL3_HM_HEADER_LENGTH */
645 s
->s3
->tmp
.message_type
= *(p
++);
647 if(RECORD_LAYER_is_sslv2_record(&s
->rlayer
)) {
649 * Only happens with SSLv3+ in an SSLv2 backward compatible
653 * Total message size is the remaining record bytes to read
654 * plus the SSL3_HM_HEADER_LENGTH bytes that we already read
656 l
= RECORD_LAYER_get_rrec_length(&s
->rlayer
)
657 + SSL3_HM_HEADER_LENGTH
;
658 if (l
&& !BUF_MEM_grow_clean(s
->init_buf
, (int)l
)) {
659 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER
, ERR_R_BUF_LIB
);
662 s
->s3
->tmp
.message_size
= l
;
664 s
->init_msg
= s
->init_buf
->data
;
665 s
->init_num
= SSL3_HM_HEADER_LENGTH
;
668 /* BUF_MEM_grow takes an 'int' parameter */
669 if (l
> (INT_MAX
- SSL3_HM_HEADER_LENGTH
)) {
670 al
= SSL_AD_ILLEGAL_PARAMETER
;
671 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER
, SSL_R_EXCESSIVE_MESSAGE_SIZE
);
674 if (l
&& !BUF_MEM_grow_clean(s
->init_buf
,
675 (int)l
+ SSL3_HM_HEADER_LENGTH
)) {
676 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER
, ERR_R_BUF_LIB
);
679 s
->s3
->tmp
.message_size
= l
;
681 s
->init_msg
= s
->init_buf
->data
+ SSL3_HM_HEADER_LENGTH
;
687 ssl3_send_alert(s
, SSL3_AL_FATAL
, al
);
692 int tls_get_message_body(SSL
*s
, unsigned long *len
)
698 if (s
->s3
->tmp
.message_type
== SSL3_MT_CHANGE_CIPHER_SPEC
) {
699 /* We've already read everything in */
700 *len
= (unsigned long)s
->init_num
;
705 n
= s
->s3
->tmp
.message_size
- s
->init_num
;
707 i
= s
->method
->ssl_read_bytes(s
, SSL3_RT_HANDSHAKE
, NULL
,
708 &p
[s
->init_num
], n
, 0);
710 s
->rwstate
= SSL_READING
;
718 #ifndef OPENSSL_NO_NEXTPROTONEG
720 * If receiving Finished, record MAC of prior handshake messages for
721 * Finished verification.
723 if (*s
->init_buf
->data
== SSL3_MT_FINISHED
)
727 /* Feed this message into MAC computation. */
728 if(RECORD_LAYER_is_sslv2_record(&s
->rlayer
)) {
729 ssl3_finish_mac(s
, (unsigned char *)s
->init_buf
->data
, s
->init_num
);
731 s
->msg_callback(0, SSL2_VERSION
, 0, s
->init_buf
->data
,
732 (size_t)s
->init_num
, s
, s
->msg_callback_arg
);
734 ssl3_finish_mac(s
, (unsigned char *)s
->init_buf
->data
,
735 s
->init_num
+ SSL3_HM_HEADER_LENGTH
);
737 s
->msg_callback(0, s
->version
, SSL3_RT_HANDSHAKE
, s
->init_buf
->data
,
738 (size_t)s
->init_num
+ SSL3_HM_HEADER_LENGTH
, s
,
739 s
->msg_callback_arg
);
743 * init_num should never be negative...should probably be declared
746 if (s
->init_num
< 0) {
747 SSLerr(SSL_F_TLS_GET_MESSAGE_BODY
, ERR_R_INTERNAL_ERROR
);
748 ssl3_send_alert(s
, SSL3_AL_FATAL
, SSL_AD_INTERNAL_ERROR
);
752 *len
= (unsigned long)s
->init_num
;
756 int ssl_cert_type(X509
*x
, EVP_PKEY
*pkey
)
762 pk
= X509_get_pubkey(x
);
769 if (i
== EVP_PKEY_RSA
) {
770 ret
= SSL_PKEY_RSA_ENC
;
771 } else if (i
== EVP_PKEY_DSA
) {
772 ret
= SSL_PKEY_DSA_SIGN
;
774 #ifndef OPENSSL_NO_EC
775 else if (i
== EVP_PKEY_EC
) {
779 else if (i
== NID_id_GostR3410_2001
) {
780 ret
= SSL_PKEY_GOST01
;
781 } else if (x
&& (i
== EVP_PKEY_DH
|| i
== EVP_PKEY_DHX
)) {
783 * For DH two cases: DH certificate signed with RSA and DH
784 * certificate signed with DSA.
786 i
= X509_certificate_type(x
, pk
);
788 ret
= SSL_PKEY_DH_RSA
;
789 else if (i
& EVP_PKS_DSA
)
790 ret
= SSL_PKEY_DH_DSA
;
799 int ssl_verify_alarm_type(long type
)
804 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
:
805 case X509_V_ERR_UNABLE_TO_GET_CRL
:
806 case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
:
807 al
= SSL_AD_UNKNOWN_CA
;
809 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE
:
810 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE
:
811 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY
:
812 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD
:
813 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD
:
814 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD
:
815 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD
:
816 case X509_V_ERR_CERT_NOT_YET_VALID
:
817 case X509_V_ERR_CRL_NOT_YET_VALID
:
818 case X509_V_ERR_CERT_UNTRUSTED
:
819 case X509_V_ERR_CERT_REJECTED
:
820 al
= SSL_AD_BAD_CERTIFICATE
;
822 case X509_V_ERR_CERT_SIGNATURE_FAILURE
:
823 case X509_V_ERR_CRL_SIGNATURE_FAILURE
:
824 al
= SSL_AD_DECRYPT_ERROR
;
826 case X509_V_ERR_CERT_HAS_EXPIRED
:
827 case X509_V_ERR_CRL_HAS_EXPIRED
:
828 al
= SSL_AD_CERTIFICATE_EXPIRED
;
830 case X509_V_ERR_CERT_REVOKED
:
831 al
= SSL_AD_CERTIFICATE_REVOKED
;
833 case X509_V_ERR_OUT_OF_MEM
:
834 al
= SSL_AD_INTERNAL_ERROR
;
836 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
:
837 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
:
838 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
:
839 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE
:
840 case X509_V_ERR_CERT_CHAIN_TOO_LONG
:
841 case X509_V_ERR_PATH_LENGTH_EXCEEDED
:
842 case X509_V_ERR_INVALID_CA
:
843 al
= SSL_AD_UNKNOWN_CA
;
845 case X509_V_ERR_APPLICATION_VERIFICATION
:
846 al
= SSL_AD_HANDSHAKE_FAILURE
;
848 case X509_V_ERR_INVALID_PURPOSE
:
849 al
= SSL_AD_UNSUPPORTED_CERTIFICATE
;
852 al
= SSL_AD_CERTIFICATE_UNKNOWN
;
858 int ssl_allow_compression(SSL
*s
)
860 if (s
->options
& SSL_OP_NO_COMPRESSION
)
862 return ssl_security(s
, SSL_SECOP_COMPRESSION
, 0, 0, NULL
);