xref: /openbsd-src/lib/libssl/ssl3.h (revision db3296cf5c1dd9058ceecc3a29fe4aaa0bd26000)
1 /* ssl/ssl3.h */
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 #ifndef HEADER_SSL3_H
113 #define HEADER_SSL3_H
114 
115 #ifndef OPENSSL_NO_COMP
116 #include <openssl/comp.h>
117 #endif
118 #include <openssl/buffer.h>
119 #include <openssl/evp.h>
120 #include <openssl/ssl.h>
121 
122 #ifdef  __cplusplus
123 extern "C" {
124 #endif
125 
126 #define SSL3_CK_RSA_NULL_MD5			0x03000001
127 #define SSL3_CK_RSA_NULL_SHA			0x03000002
128 #define SSL3_CK_RSA_RC4_40_MD5 			0x03000003
129 #define SSL3_CK_RSA_RC4_128_MD5			0x03000004
130 #define SSL3_CK_RSA_RC4_128_SHA			0x03000005
131 #define SSL3_CK_RSA_RC2_40_MD5			0x03000006
132 #define SSL3_CK_RSA_IDEA_128_SHA		0x03000007
133 #define SSL3_CK_RSA_DES_40_CBC_SHA		0x03000008
134 #define SSL3_CK_RSA_DES_64_CBC_SHA		0x03000009
135 #define SSL3_CK_RSA_DES_192_CBC3_SHA		0x0300000A
136 
137 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA		0x0300000B
138 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA		0x0300000C
139 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 	0x0300000D
140 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA		0x0300000E
141 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA		0x0300000F
142 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 	0x03000010
143 
144 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA		0x03000011
145 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA		0x03000012
146 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA	0x03000013
147 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA		0x03000014
148 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA		0x03000015
149 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA	0x03000016
150 
151 #define SSL3_CK_ADH_RC4_40_MD5			0x03000017
152 #define SSL3_CK_ADH_RC4_128_MD5			0x03000018
153 #define SSL3_CK_ADH_DES_40_CBC_SHA		0x03000019
154 #define SSL3_CK_ADH_DES_64_CBC_SHA		0x0300001A
155 #define SSL3_CK_ADH_DES_192_CBC_SHA		0x0300001B
156 
157 #define SSL3_CK_FZA_DMS_NULL_SHA		0x0300001C
158 #define SSL3_CK_FZA_DMS_FZA_SHA			0x0300001D
159 #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
160 	 to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
161 	 of the ietf-tls list */
162 #define SSL3_CK_FZA_DMS_RC4_SHA			0x0300001E
163 #endif
164 
165 /*    VRS Additional Kerberos5 entries
166  */
167 #define SSL3_CK_KRB5_DES_64_CBC_SHA		0x0300001E
168 #define SSL3_CK_KRB5_DES_192_CBC3_SHA		0x0300001F
169 #define SSL3_CK_KRB5_RC4_128_SHA		0x03000020
170 #define SSL3_CK_KRB5_IDEA_128_CBC_SHA	       	0x03000021
171 #define SSL3_CK_KRB5_DES_64_CBC_MD5       	0x03000022
172 #define SSL3_CK_KRB5_DES_192_CBC3_MD5       	0x03000023
173 #define SSL3_CK_KRB5_RC4_128_MD5	       	0x03000024
174 #define SSL3_CK_KRB5_IDEA_128_CBC_MD5 		0x03000025
175 
176 #define SSL3_CK_KRB5_DES_40_CBC_SHA 		0x03000026
177 #define SSL3_CK_KRB5_RC2_40_CBC_SHA 		0x03000027
178 #define SSL3_CK_KRB5_RC4_40_SHA	 		0x03000028
179 #define SSL3_CK_KRB5_DES_40_CBC_MD5 		0x03000029
180 #define SSL3_CK_KRB5_RC2_40_CBC_MD5 		0x0300002A
181 #define SSL3_CK_KRB5_RC4_40_MD5	 		0x0300002B
182 
183 #define SSL3_TXT_RSA_NULL_MD5			"NULL-MD5"
184 #define SSL3_TXT_RSA_NULL_SHA			"NULL-SHA"
185 #define SSL3_TXT_RSA_RC4_40_MD5 		"EXP-RC4-MD5"
186 #define SSL3_TXT_RSA_RC4_128_MD5		"RC4-MD5"
187 #define SSL3_TXT_RSA_RC4_128_SHA		"RC4-SHA"
188 #define SSL3_TXT_RSA_RC2_40_MD5			"EXP-RC2-CBC-MD5"
189 #define SSL3_TXT_RSA_IDEA_128_SHA		"IDEA-CBC-SHA"
190 #define SSL3_TXT_RSA_DES_40_CBC_SHA		"EXP-DES-CBC-SHA"
191 #define SSL3_TXT_RSA_DES_64_CBC_SHA		"DES-CBC-SHA"
192 #define SSL3_TXT_RSA_DES_192_CBC3_SHA		"DES-CBC3-SHA"
193 
194 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA		"EXP-DH-DSS-DES-CBC-SHA"
195 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA		"DH-DSS-DES-CBC-SHA"
196 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA 	"DH-DSS-DES-CBC3-SHA"
197 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA		"EXP-DH-RSA-DES-CBC-SHA"
198 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA		"DH-RSA-DES-CBC-SHA"
199 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA 	"DH-RSA-DES-CBC3-SHA"
200 
201 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA		"EXP-EDH-DSS-DES-CBC-SHA"
202 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA		"EDH-DSS-DES-CBC-SHA"
203 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA	"EDH-DSS-DES-CBC3-SHA"
204 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA		"EXP-EDH-RSA-DES-CBC-SHA"
205 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA		"EDH-RSA-DES-CBC-SHA"
206 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA	"EDH-RSA-DES-CBC3-SHA"
207 
208 #define SSL3_TXT_ADH_RC4_40_MD5			"EXP-ADH-RC4-MD5"
209 #define SSL3_TXT_ADH_RC4_128_MD5		"ADH-RC4-MD5"
210 #define SSL3_TXT_ADH_DES_40_CBC_SHA		"EXP-ADH-DES-CBC-SHA"
211 #define SSL3_TXT_ADH_DES_64_CBC_SHA		"ADH-DES-CBC-SHA"
212 #define SSL3_TXT_ADH_DES_192_CBC_SHA		"ADH-DES-CBC3-SHA"
213 
214 #define SSL3_TXT_FZA_DMS_NULL_SHA		"FZA-NULL-SHA"
215 #define SSL3_TXT_FZA_DMS_FZA_SHA		"FZA-FZA-CBC-SHA"
216 #define SSL3_TXT_FZA_DMS_RC4_SHA		"FZA-RC4-SHA"
217 
218 #define SSL3_TXT_KRB5_DES_64_CBC_SHA		"KRB5-DES-CBC-SHA"
219 #define SSL3_TXT_KRB5_DES_192_CBC3_SHA		"KRB5-DES-CBC3-SHA"
220 #define SSL3_TXT_KRB5_RC4_128_SHA		"KRB5-RC4-SHA"
221 #define SSL3_TXT_KRB5_IDEA_128_CBC_SHA	       	"KRB5-IDEA-CBC-SHA"
222 #define SSL3_TXT_KRB5_DES_64_CBC_MD5       	"KRB5-DES-CBC-MD5"
223 #define SSL3_TXT_KRB5_DES_192_CBC3_MD5       	"KRB5-DES-CBC3-MD5"
224 #define SSL3_TXT_KRB5_RC4_128_MD5		"KRB5-RC4-MD5"
225 #define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 		"KRB5-IDEA-CBC-MD5"
226 
227 #define SSL3_TXT_KRB5_DES_40_CBC_SHA 		"EXP-KRB5-DES-CBC-SHA"
228 #define SSL3_TXT_KRB5_RC2_40_CBC_SHA 		"EXP-KRB5-RC2-CBC-SHA"
229 #define SSL3_TXT_KRB5_RC4_40_SHA	 	"EXP-KRB5-RC4-SHA"
230 #define SSL3_TXT_KRB5_DES_40_CBC_MD5 		"EXP-KRB5-DES-CBC-MD5"
231 #define SSL3_TXT_KRB5_RC2_40_CBC_MD5 		"EXP-KRB5-RC2-CBC-MD5"
232 #define SSL3_TXT_KRB5_RC4_40_MD5	 	"EXP-KRB5-RC4-MD5"
233 
234 #define SSL3_SSL_SESSION_ID_LENGTH		32
235 #define SSL3_MAX_SSL_SESSION_ID_LENGTH		32
236 
237 #define SSL3_MASTER_SECRET_SIZE			48
238 #define SSL3_RANDOM_SIZE			32
239 #define SSL3_SESSION_ID_SIZE			32
240 #define SSL3_RT_HEADER_LENGTH			5
241 
242 /* Due to MS stuffing up, this can change.... */
243 #if defined(OPENSSL_SYS_WIN16) || \
244 	(defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32))
245 #define SSL3_RT_MAX_EXTRA			(14000)
246 #else
247 #define SSL3_RT_MAX_EXTRA			(16384)
248 #endif
249 
250 #define SSL3_RT_MAX_PLAIN_LENGTH		16384
251 #define SSL3_RT_MAX_COMPRESSED_LENGTH	(1024+SSL3_RT_MAX_PLAIN_LENGTH)
252 #define SSL3_RT_MAX_ENCRYPTED_LENGTH	(1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
253 #define SSL3_RT_MAX_PACKET_SIZE		(SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
254 #define SSL3_RT_MAX_DATA_SIZE			(1024*1024)
255 
256 #define SSL3_MD_CLIENT_FINISHED_CONST	"\x43\x4C\x4E\x54"
257 #define SSL3_MD_SERVER_FINISHED_CONST	"\x53\x52\x56\x52"
258 
259 #define SSL3_VERSION			0x0300
260 #define SSL3_VERSION_MAJOR		0x03
261 #define SSL3_VERSION_MINOR		0x00
262 
263 #define SSL3_RT_CHANGE_CIPHER_SPEC	20
264 #define SSL3_RT_ALERT			21
265 #define SSL3_RT_HANDSHAKE		22
266 #define SSL3_RT_APPLICATION_DATA	23
267 
268 #define SSL3_AL_WARNING			1
269 #define SSL3_AL_FATAL			2
270 
271 #define SSL3_AD_CLOSE_NOTIFY		 0
272 #define SSL3_AD_UNEXPECTED_MESSAGE	10	/* fatal */
273 #define SSL3_AD_BAD_RECORD_MAC		20	/* fatal */
274 #define SSL3_AD_DECOMPRESSION_FAILURE	30	/* fatal */
275 #define SSL3_AD_HANDSHAKE_FAILURE	40	/* fatal */
276 #define SSL3_AD_NO_CERTIFICATE		41
277 #define SSL3_AD_BAD_CERTIFICATE		42
278 #define SSL3_AD_UNSUPPORTED_CERTIFICATE	43
279 #define SSL3_AD_CERTIFICATE_REVOKED	44
280 #define SSL3_AD_CERTIFICATE_EXPIRED	45
281 #define SSL3_AD_CERTIFICATE_UNKNOWN	46
282 #define SSL3_AD_ILLEGAL_PARAMETER	47	/* fatal */
283 
284 typedef struct ssl3_record_st
285 	{
286 /*r */	int type;               /* type of record */
287 /*rw*/	unsigned int length;    /* How many bytes available */
288 /*r */	unsigned int off;       /* read/write offset into 'buf' */
289 /*rw*/	unsigned char *data;    /* pointer to the record data */
290 /*rw*/	unsigned char *input;   /* where the decode bytes are */
291 /*r */	unsigned char *comp;    /* only used with decompression - malloc()ed */
292 	} SSL3_RECORD;
293 
294 typedef struct ssl3_buffer_st
295 	{
296 	unsigned char *buf;     /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
297 	                         * see ssl3_setup_buffers() */
298 	size_t len;             /* buffer size */
299 	int offset;             /* where to 'copy from' */
300 	int left;               /* how many bytes left */
301 	} SSL3_BUFFER;
302 
303 #define SSL3_CT_RSA_SIGN			1
304 #define SSL3_CT_DSS_SIGN			2
305 #define SSL3_CT_RSA_FIXED_DH			3
306 #define SSL3_CT_DSS_FIXED_DH			4
307 #define SSL3_CT_RSA_EPHEMERAL_DH		5
308 #define SSL3_CT_DSS_EPHEMERAL_DH		6
309 #define SSL3_CT_FORTEZZA_DMS			20
310 #define SSL3_CT_NUMBER				7
311 
312 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS	0x0001
313 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED	0x0002
314 #define SSL3_FLAGS_POP_BUFFER			0x0004
315 #define TLS1_FLAGS_TLS_PADDING_BUG		0x0008
316 
317 typedef struct ssl3_state_st
318 	{
319 	long flags;
320 	int delay_buf_pop_ret;
321 
322 	unsigned char read_sequence[8];
323 	unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
324 	unsigned char write_sequence[8];
325 	unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
326 
327 	unsigned char server_random[SSL3_RANDOM_SIZE];
328 	unsigned char client_random[SSL3_RANDOM_SIZE];
329 
330 	/* flags for countermeasure against known-IV weakness */
331 	int need_empty_fragments;
332 	int empty_fragment_done;
333 
334 	SSL3_BUFFER rbuf;	/* read IO goes into here */
335 	SSL3_BUFFER wbuf;	/* write IO goes into here */
336 
337 	SSL3_RECORD rrec;	/* each decoded record goes in here */
338 	SSL3_RECORD wrec;	/* goes out from here */
339 
340 	/* storage for Alert/Handshake protocol data received but not
341 	 * yet processed by ssl3_read_bytes: */
342 	unsigned char alert_fragment[2];
343 	unsigned int alert_fragment_len;
344 	unsigned char handshake_fragment[4];
345 	unsigned int handshake_fragment_len;
346 
347 	/* partial write - check the numbers match */
348 	unsigned int wnum;	/* number of bytes sent so far */
349 	int wpend_tot;		/* number bytes written */
350 	int wpend_type;
351 	int wpend_ret;		/* number of bytes submitted */
352 	const unsigned char *wpend_buf;
353 
354 	/* used during startup, digest all incoming/outgoing packets */
355 	EVP_MD_CTX finish_dgst1;
356 	EVP_MD_CTX finish_dgst2;
357 
358 	/* this is set whenerver we see a change_cipher_spec message
359 	 * come in when we are not looking for one */
360 	int change_cipher_spec;
361 
362 	int warn_alert;
363 	int fatal_alert;
364 	/* we allow one fatal and one warning alert to be outstanding,
365 	 * send close alert via the warning alert */
366 	int alert_dispatch;
367 	unsigned char send_alert[2];
368 
369 	/* This flag is set when we should renegotiate ASAP, basically when
370 	 * there is no more data in the read or write buffers */
371 	int renegotiate;
372 	int total_renegotiations;
373 	int num_renegotiations;
374 
375 	int in_read_app_data;
376 
377 	struct	{
378 		/* actually only needs to be 16+20 */
379 		unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
380 
381 		/* actually only need to be 16+20 for SSLv3 and 12 for TLS */
382 		unsigned char finish_md[EVP_MAX_MD_SIZE*2];
383 		int finish_md_len;
384 		unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
385 		int peer_finish_md_len;
386 
387 		unsigned long message_size;
388 		int message_type;
389 
390 		/* used to hold the new cipher we are going to use */
391 		SSL_CIPHER *new_cipher;
392 #ifndef OPENSSL_NO_DH
393 		DH *dh;
394 #endif
395 		/* used when SSL_ST_FLUSH_DATA is entered */
396 		int next_state;
397 
398 		int reuse_message;
399 
400 		/* used for certificate requests */
401 		int cert_req;
402 		int ctype_num;
403 		char ctype[SSL3_CT_NUMBER];
404 		STACK_OF(X509_NAME) *ca_names;
405 
406 		int use_rsa_tmp;
407 
408 		int key_block_length;
409 		unsigned char *key_block;
410 
411 		const EVP_CIPHER *new_sym_enc;
412 		const EVP_MD *new_hash;
413 #ifndef OPENSSL_NO_COMP
414 		const SSL_COMP *new_compression;
415 #else
416 		char *new_compression;
417 #endif
418 		int cert_request;
419 		} tmp;
420 
421 	} SSL3_STATE;
422 
423 /* SSLv3 */
424 /*client */
425 /* extra state */
426 #define SSL3_ST_CW_FLUSH		(0x100|SSL_ST_CONNECT)
427 /* write to server */
428 #define SSL3_ST_CW_CLNT_HELLO_A		(0x110|SSL_ST_CONNECT)
429 #define SSL3_ST_CW_CLNT_HELLO_B		(0x111|SSL_ST_CONNECT)
430 /* read from server */
431 #define SSL3_ST_CR_SRVR_HELLO_A		(0x120|SSL_ST_CONNECT)
432 #define SSL3_ST_CR_SRVR_HELLO_B		(0x121|SSL_ST_CONNECT)
433 #define SSL3_ST_CR_CERT_A		(0x130|SSL_ST_CONNECT)
434 #define SSL3_ST_CR_CERT_B		(0x131|SSL_ST_CONNECT)
435 #define SSL3_ST_CR_KEY_EXCH_A		(0x140|SSL_ST_CONNECT)
436 #define SSL3_ST_CR_KEY_EXCH_B		(0x141|SSL_ST_CONNECT)
437 #define SSL3_ST_CR_CERT_REQ_A		(0x150|SSL_ST_CONNECT)
438 #define SSL3_ST_CR_CERT_REQ_B		(0x151|SSL_ST_CONNECT)
439 #define SSL3_ST_CR_SRVR_DONE_A		(0x160|SSL_ST_CONNECT)
440 #define SSL3_ST_CR_SRVR_DONE_B		(0x161|SSL_ST_CONNECT)
441 /* write to server */
442 #define SSL3_ST_CW_CERT_A		(0x170|SSL_ST_CONNECT)
443 #define SSL3_ST_CW_CERT_B		(0x171|SSL_ST_CONNECT)
444 #define SSL3_ST_CW_CERT_C		(0x172|SSL_ST_CONNECT)
445 #define SSL3_ST_CW_CERT_D		(0x173|SSL_ST_CONNECT)
446 #define SSL3_ST_CW_KEY_EXCH_A		(0x180|SSL_ST_CONNECT)
447 #define SSL3_ST_CW_KEY_EXCH_B		(0x181|SSL_ST_CONNECT)
448 #define SSL3_ST_CW_CERT_VRFY_A		(0x190|SSL_ST_CONNECT)
449 #define SSL3_ST_CW_CERT_VRFY_B		(0x191|SSL_ST_CONNECT)
450 #define SSL3_ST_CW_CHANGE_A		(0x1A0|SSL_ST_CONNECT)
451 #define SSL3_ST_CW_CHANGE_B		(0x1A1|SSL_ST_CONNECT)
452 #define SSL3_ST_CW_FINISHED_A		(0x1B0|SSL_ST_CONNECT)
453 #define SSL3_ST_CW_FINISHED_B		(0x1B1|SSL_ST_CONNECT)
454 /* read from server */
455 #define SSL3_ST_CR_CHANGE_A		(0x1C0|SSL_ST_CONNECT)
456 #define SSL3_ST_CR_CHANGE_B		(0x1C1|SSL_ST_CONNECT)
457 #define SSL3_ST_CR_FINISHED_A		(0x1D0|SSL_ST_CONNECT)
458 #define SSL3_ST_CR_FINISHED_B		(0x1D1|SSL_ST_CONNECT)
459 
460 /* server */
461 /* extra state */
462 #define SSL3_ST_SW_FLUSH		(0x100|SSL_ST_ACCEPT)
463 /* read from client */
464 /* Do not change the number values, they do matter */
465 #define SSL3_ST_SR_CLNT_HELLO_A		(0x110|SSL_ST_ACCEPT)
466 #define SSL3_ST_SR_CLNT_HELLO_B		(0x111|SSL_ST_ACCEPT)
467 #define SSL3_ST_SR_CLNT_HELLO_C		(0x112|SSL_ST_ACCEPT)
468 /* write to client */
469 #define SSL3_ST_SW_HELLO_REQ_A		(0x120|SSL_ST_ACCEPT)
470 #define SSL3_ST_SW_HELLO_REQ_B		(0x121|SSL_ST_ACCEPT)
471 #define SSL3_ST_SW_HELLO_REQ_C		(0x122|SSL_ST_ACCEPT)
472 #define SSL3_ST_SW_SRVR_HELLO_A		(0x130|SSL_ST_ACCEPT)
473 #define SSL3_ST_SW_SRVR_HELLO_B		(0x131|SSL_ST_ACCEPT)
474 #define SSL3_ST_SW_CERT_A		(0x140|SSL_ST_ACCEPT)
475 #define SSL3_ST_SW_CERT_B		(0x141|SSL_ST_ACCEPT)
476 #define SSL3_ST_SW_KEY_EXCH_A		(0x150|SSL_ST_ACCEPT)
477 #define SSL3_ST_SW_KEY_EXCH_B		(0x151|SSL_ST_ACCEPT)
478 #define SSL3_ST_SW_CERT_REQ_A		(0x160|SSL_ST_ACCEPT)
479 #define SSL3_ST_SW_CERT_REQ_B		(0x161|SSL_ST_ACCEPT)
480 #define SSL3_ST_SW_SRVR_DONE_A		(0x170|SSL_ST_ACCEPT)
481 #define SSL3_ST_SW_SRVR_DONE_B		(0x171|SSL_ST_ACCEPT)
482 /* read from client */
483 #define SSL3_ST_SR_CERT_A		(0x180|SSL_ST_ACCEPT)
484 #define SSL3_ST_SR_CERT_B		(0x181|SSL_ST_ACCEPT)
485 #define SSL3_ST_SR_KEY_EXCH_A		(0x190|SSL_ST_ACCEPT)
486 #define SSL3_ST_SR_KEY_EXCH_B		(0x191|SSL_ST_ACCEPT)
487 #define SSL3_ST_SR_CERT_VRFY_A		(0x1A0|SSL_ST_ACCEPT)
488 #define SSL3_ST_SR_CERT_VRFY_B		(0x1A1|SSL_ST_ACCEPT)
489 #define SSL3_ST_SR_CHANGE_A		(0x1B0|SSL_ST_ACCEPT)
490 #define SSL3_ST_SR_CHANGE_B		(0x1B1|SSL_ST_ACCEPT)
491 #define SSL3_ST_SR_FINISHED_A		(0x1C0|SSL_ST_ACCEPT)
492 #define SSL3_ST_SR_FINISHED_B		(0x1C1|SSL_ST_ACCEPT)
493 /* write to client */
494 #define SSL3_ST_SW_CHANGE_A		(0x1D0|SSL_ST_ACCEPT)
495 #define SSL3_ST_SW_CHANGE_B		(0x1D1|SSL_ST_ACCEPT)
496 #define SSL3_ST_SW_FINISHED_A		(0x1E0|SSL_ST_ACCEPT)
497 #define SSL3_ST_SW_FINISHED_B		(0x1E1|SSL_ST_ACCEPT)
498 
499 #define SSL3_MT_HELLO_REQUEST			0
500 #define SSL3_MT_CLIENT_HELLO			1
501 #define SSL3_MT_SERVER_HELLO			2
502 #define SSL3_MT_CERTIFICATE			11
503 #define SSL3_MT_SERVER_KEY_EXCHANGE		12
504 #define SSL3_MT_CERTIFICATE_REQUEST		13
505 #define SSL3_MT_SERVER_DONE			14
506 #define SSL3_MT_CERTIFICATE_VERIFY		15
507 #define SSL3_MT_CLIENT_KEY_EXCHANGE		16
508 #define SSL3_MT_FINISHED			20
509 
510 #define SSL3_MT_CCS				1
511 
512 /* These are used when changing over to a new cipher */
513 #define SSL3_CC_READ		0x01
514 #define SSL3_CC_WRITE		0x02
515 #define SSL3_CC_CLIENT		0x10
516 #define SSL3_CC_SERVER		0x20
517 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE	(SSL3_CC_CLIENT|SSL3_CC_WRITE)
518 #define SSL3_CHANGE_CIPHER_SERVER_READ	(SSL3_CC_SERVER|SSL3_CC_READ)
519 #define SSL3_CHANGE_CIPHER_CLIENT_READ	(SSL3_CC_CLIENT|SSL3_CC_READ)
520 #define SSL3_CHANGE_CIPHER_SERVER_WRITE	(SSL3_CC_SERVER|SSL3_CC_WRITE)
521 
522 #ifdef  __cplusplus
523 }
524 #endif
525 #endif
526 
527