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remove some functions from exported headers
[thirdparty/openssl.git] / ssl / ssl3.h
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d02b48c6 1/* ssl/ssl3.h */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE		 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 */
82b0bf0b
BM		 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 */
ea262260
BM		 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 */
d02b48c6
RE		 116
117#ifndef HEADER_SSL3_H
118#define HEADER_SSL3_H
119
cf1b7d96 120#ifndef OPENSSL_NO_COMP
ef33b970
RL		 121#include <openssl/comp.h>
122#endif
ec577822 123#include <openssl/buffer.h>
0b86eb3e
BM		 124#include <openssl/evp.h>
125#include <openssl/ssl.h>
d02b48c6
RE		 126
127#ifdef __cplusplus
128extern "C" {
129#endif
130
131#define SSL3_CK_RSA_NULL_MD5 0x03000001
132#define SSL3_CK_RSA_NULL_SHA 0x03000002
133#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
134#define SSL3_CK_RSA_RC4_128_MD5 0x03000004
135#define SSL3_CK_RSA_RC4_128_SHA 0x03000005
136#define SSL3_CK_RSA_RC2_40_MD5 0x03000006
137#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
138#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
139#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
140#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
141
142#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
143#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
144#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
145#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
146#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
147#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
148
149#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
150#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
151#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
152#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
153#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
154#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
155
156#define SSL3_CK_ADH_RC4_40_MD5 0x03000017
157#define SSL3_CK_ADH_RC4_128_MD5 0x03000018
158#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
159#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
58964a49 160#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
d02b48c6
RE		 161
162#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
163#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
7ba3a4c3
RL		 164#if 0 /* Because it clashes with KRB5, is never used any more, and is safe
165 to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
166 of the ietf-tls list */
d02b48c6 167#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
7ba3a4c3 168#endif
d02b48c6 169
f9b3bff6
RL		 170/* VRS Additional Kerberos5 entries
171 */
7ba3a4c3
RL		 172#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
173#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
174#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
175#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
176#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
ef0baf60 177#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
7ba3a4c3 178#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
ef0baf60 179#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
7ba3a4c3
RL		 180
181#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
182#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
183#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
184#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
185#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
186#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
f9b3bff6 187
d02b48c6
RE		 188#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
189#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
190#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
191#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
192#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
193#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
58964a49 194#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
d02b48c6
RE		 195#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
196#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
197#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
198
199#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
200#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
201#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
202#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
203#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
204#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
205
206#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
207#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
208#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
58964a49 209#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
d02b48c6
RE		 210#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
211#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
212
213#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
214#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
215#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
216#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
58964a49 217#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
d02b48c6
RE		 218
219#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
220#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
221#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
222
7ba3a4c3
RL		 223#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
224#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
225#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
226#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
227#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
28c8a911 228#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
7ba3a4c3 229#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
28c8a911 230#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
7ba3a4c3
RL		 231
232#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
233#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
234#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
235#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
31be2daa 236#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
7ba3a4c3
RL		 237#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
238
d02b48c6
RE		 239#define SSL3_SSL_SESSION_ID_LENGTH 32
240#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
241
242#define SSL3_MASTER_SECRET_SIZE 48
243#define SSL3_RANDOM_SIZE 32
244#define SSL3_SESSION_ID_SIZE 32
245#define SSL3_RT_HEADER_LENGTH 5
246
247/* Due to MS stuffing up, this can change.... */
cf1b7d96
RL		 248#if defined(OPENSSL_SYS_WIN16) || \
249 (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32))
d02b48c6
RE		 250#define SSL3_RT_MAX_EXTRA (14000)
251#else
252#define SSL3_RT_MAX_EXTRA (16384)
253#endif
254
255#define SSL3_RT_MAX_PLAIN_LENGTH 16384
256#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH)
257#define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
258#define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
259#define SSL3_RT_MAX_DATA_SIZE (1024*1024)
260
c44f7540
BM		 261#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
262#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
d02b48c6
RE		 263
264#define SSL3_VERSION 0x0300
265#define SSL3_VERSION_MAJOR 0x03
266#define SSL3_VERSION_MINOR 0x00
267
268#define SSL3_RT_CHANGE_CIPHER_SPEC 20
269#define SSL3_RT_ALERT 21
270#define SSL3_RT_HANDSHAKE 22
271#define SSL3_RT_APPLICATION_DATA 23
272
273#define SSL3_AL_WARNING 1
274#define SSL3_AL_FATAL 2
275
276#define SSL3_AD_CLOSE_NOTIFY 0
277#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
278#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
279#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
280#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
281#define SSL3_AD_NO_CERTIFICATE 41
282#define SSL3_AD_BAD_CERTIFICATE 42
283#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
284#define SSL3_AD_CERTIFICATE_REVOKED 44
285#define SSL3_AD_CERTIFICATE_EXPIRED 45
286#define SSL3_AD_CERTIFICATE_UNKNOWN 46
287#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
288
289typedef struct ssl3_record_st
290 {
b35e9050
BM		 291/*r */ int type; /* type of record */
292/*rw*/ unsigned int length; /* How many bytes available */
293/*r */ unsigned int off; /* read/write offset into 'buf' */
294/*rw*/ unsigned char *data; /* pointer to the record data */
295/*rw*/ unsigned char *input; /* where the decode bytes are */
296/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
36d16f8e
BL		 297/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
298/*r */ unsigned long long seq_num; /* sequence number, needed by DTLS1 */
d02b48c6
RE		 299 } SSL3_RECORD;
300
301typedef struct ssl3_buffer_st
302 {
82b0bf0b
BM		 303 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
304 * see ssl3_setup_buffers() */
305 size_t len; /* buffer size */
306 int offset; /* where to 'copy from' */
307 int left; /* how many bytes left */
d02b48c6
RE		 308 } SSL3_BUFFER;
309
d02b48c6
RE		 310#define SSL3_CT_RSA_SIGN 1
311#define SSL3_CT_DSS_SIGN 2
312#define SSL3_CT_RSA_FIXED_DH 3
313#define SSL3_CT_DSS_FIXED_DH 4
314#define SSL3_CT_RSA_EPHEMERAL_DH 5
315#define SSL3_CT_DSS_EPHEMERAL_DH 6
316#define SSL3_CT_FORTEZZA_DMS 20
ea262260
BM		 317/* SSL3_CT_NUMBER is used to size arrays and it must be large
318 * enough to contain all of the cert types defined either for
319 * SSLv3 and TLSv1.
320 */
321#define SSL3_CT_NUMBER 7
322
d02b48c6
RE		 323
324#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
325#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
326#define SSL3_FLAGS_POP_BUFFER 0x0004
dfeab068 327#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
58964a49 328
b35e9050 329typedef struct ssl3_state_st
d02b48c6
RE		 330 {
331 long flags;
332 int delay_buf_pop_ret;
333
334 unsigned char read_sequence[8];
335 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
336 unsigned char write_sequence[8];
337 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
338
339 unsigned char server_random[SSL3_RANDOM_SIZE];
340 unsigned char client_random[SSL3_RANDOM_SIZE];
341
82b0bf0b
BM		 342 /* flags for countermeasure against known-IV weakness */
343 int need_empty_fragments;
344 int empty_fragment_done;
345
d02b48c6
RE		 346 SSL3_BUFFER rbuf; /* read IO goes into here */
347 SSL3_BUFFER wbuf; /* write IO goes into here */
b35e9050 348
d02b48c6
RE		 349 SSL3_RECORD rrec; /* each decoded record goes in here */
350 SSL3_RECORD wrec; /* goes out from here */
b35e9050
BM		 351
352 /* storage for Alert/Handshake protocol data received but not
353 * yet processed by ssl3_read_bytes: */
354 unsigned char alert_fragment[2];
e5599db4 355 unsigned int alert_fragment_len;
b35e9050 356 unsigned char handshake_fragment[4];
e5599db4 357 unsigned int handshake_fragment_len;
d02b48c6
RE		 358
359 /* partial write - check the numbers match */
360 unsigned int wnum; /* number of bytes sent so far */
361 int wpend_tot; /* number bytes written */
362 int wpend_type;
363 int wpend_ret; /* number of bytes submitted */
61f5b6f3 364 const unsigned char *wpend_buf;
d02b48c6
RE		 365
366 /* used during startup, digest all incoming/outgoing packets */
367 EVP_MD_CTX finish_dgst1;
368 EVP_MD_CTX finish_dgst2;
369
370 /* this is set whenerver we see a change_cipher_spec message
371 * come in when we are not looking for one */
372 int change_cipher_spec;
373
374 int warn_alert;
375 int fatal_alert;
657e60fa 376 /* we allow one fatal and one warning alert to be outstanding,
d02b48c6
RE		 377 * send close alert via the warning alert */
378 int alert_dispatch;
61f5b6f3 379 unsigned char send_alert[2];
d02b48c6 380
58964a49
RE		 381 /* This flag is set when we should renegotiate ASAP, basically when
382 * there is no more data in the read or write buffers */
383 int renegotiate;
384 int total_renegotiations;
385 int num_renegotiations;
386
387 int in_read_app_data;
388
d02b48c6 389 struct {
f2d9a32c
BM		 390 /* actually only needs to be 16+20 */
391 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
392
393 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
9fb617e2
BM		 394 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
395 int finish_md_len;
396 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
397 int peer_finish_md_len;
d02b48c6
RE		 398
399 unsigned long message_size;
400 int message_type;
401
402 /* used to hold the new cipher we are going to use */
403 SSL_CIPHER *new_cipher;
cf1b7d96 404#ifndef OPENSSL_NO_DH
d02b48c6 405 DH *dh;
79df9d62 406#endif
ea262260
BM		 407
408#ifndef OPENSSL_NO_ECDH
409 EC_KEY *ecdh; /* holds short lived ECDH key */
410#endif
411
d02b48c6
RE		 412 /* used when SSL_ST_FLUSH_DATA is entered */
413 int next_state;
414
415 int reuse_message;
416
417 /* used for certificate requests */
418 int cert_req;
419 int ctype_num;
420 char ctype[SSL3_CT_NUMBER];
f73e07cf 421 STACK_OF(X509_NAME) *ca_names;
d02b48c6
RE		 422
423 int use_rsa_tmp;
424
425 int key_block_length;
426 unsigned char *key_block;
427
e778802f
BL		 428 const EVP_CIPHER *new_sym_enc;
429 const EVP_MD *new_hash;
cf1b7d96 430#ifndef OPENSSL_NO_COMP
e778802f 431 const SSL_COMP *new_compression;
dfeab068
RE		 432#else
433 char *new_compression;
434#endif
58964a49 435 int cert_request;
d02b48c6 436 } tmp;
413c4f45 437
b35e9050 438 } SSL3_STATE;
d02b48c6 439
36d16f8e 440
d02b48c6
RE		 441/* SSLv3 */
442/*client */
443/* extra state */
444#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
445/* write to server */
446#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
447#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
448/* read from server */
449#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
450#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
36d16f8e
BL		 451#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
452#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
d02b48c6
RE		 453#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
454#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
455#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
456#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
457#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
458#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
459#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
460#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
461/* write to server */
462#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
463#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
464#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
465#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
466#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
467#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
468#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
469#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
470#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
471#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
472#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
473#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
474/* read from server */
475#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
476#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
477#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
478#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
479
480/* server */
481/* extra state */
482#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
483/* read from client */
58964a49 484/* Do not change the number values, they do matter */
d02b48c6
RE		 485#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
486#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
487#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
488/* write to client */
36d16f8e
BL		 489#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
490#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
d02b48c6
RE		 491#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
492#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
493#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
494#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
495#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
496#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
497#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
498#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
499#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
500#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
501#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
502#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
503#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
504/* read from client */
505#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
506#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
507#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
508#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
509#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
510#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
511#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
512#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
513#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
514#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
515/* write to client */
516#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
517#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
518#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
519#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
520
c51ae173 521#define SSL3_MT_HELLO_REQUEST 0
d02b48c6
RE		 522#define SSL3_MT_CLIENT_HELLO 1
523#define SSL3_MT_SERVER_HELLO 2
524#define SSL3_MT_CERTIFICATE 11
525#define SSL3_MT_SERVER_KEY_EXCHANGE 12
526#define SSL3_MT_CERTIFICATE_REQUEST 13
527#define SSL3_MT_SERVER_DONE 14
528#define SSL3_MT_CERTIFICATE_VERIFY 15
529#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
530#define SSL3_MT_FINISHED 20
36d16f8e
BL		 531#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
532
d02b48c6
RE		 533
534#define SSL3_MT_CCS 1
535
536/* These are used when changing over to a new cipher */
537#define SSL3_CC_READ 0x01
538#define SSL3_CC_WRITE 0x02
539#define SSL3_CC_CLIENT 0x10
540#define SSL3_CC_SERVER 0x20
541#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
542#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
543#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
544#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
545
546#ifdef __cplusplus
547}
548#endif
549#endif
550
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