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b9a85effa0058b1ad7b84e7ae7193057a8c4e372
[msysgit.git] / mingw / include / openssl / ssl3.h
blobb9a85effa0058b1ad7b84e7ae7193057a8c4e372
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 * 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 #ifndef HEADER_SSL3_H
118 #define HEADER_SSL3_H
119
120 #ifndef OPENSSL_NO_COMP
121 #include <openssl/comp.h>
122 #endif
123 #include <openssl/buffer.h>
124 #include <openssl/evp.h>
125 #include <openssl/ssl.h>
126 #include <openssl/pq_compat.h>
127
128 #ifdef __cplusplus
129 extern "C" {
130 #endif
131
132 /* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
133 #define SSL3_CK_SCSV 0x030000FF
134
135 #define SSL3_CK_RSA_NULL_MD5 0x03000001
136 #define SSL3_CK_RSA_NULL_SHA 0x03000002
137 #define SSL3_CK_RSA_RC4_40_MD5 0x03000003
138 #define SSL3_CK_RSA_RC4_128_MD5 0x03000004
139 #define SSL3_CK_RSA_RC4_128_SHA 0x03000005
140 #define SSL3_CK_RSA_RC2_40_MD5 0x03000006
141 #define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
142 #define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
143 #define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
144 #define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
145
146 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
147 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
148 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
149 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
150 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
151 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
152
153 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
154 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
155 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
156 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
157 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
158 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
159
160 #define SSL3_CK_ADH_RC4_40_MD5 0x03000017
161 #define SSL3_CK_ADH_RC4_128_MD5 0x03000018
162 #define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
163 #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
164 #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
165
166 #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
167 #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
168 #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
169 to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
170 of the ietf-tls list */
171 #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
172 #endif
173
174 /* VRS Additional Kerberos5 entries
175 */
176 #define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
177 #define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
178 #define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
179 #define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
180 #define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
181 #define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
182 #define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
183 #define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
184
185 #define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
186 #define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
187 #define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
188 #define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
189 #define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
190 #define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
191
192 #define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
193 #define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
194 #define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
195 #define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
196 #define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
197 #define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
198 #define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
199 #define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
200 #define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
201 #define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
202
203 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
204 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
205 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
206 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
207 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
208 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
209
210 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
211 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
212 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
213 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
214 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
215 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
216
217 #define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
218 #define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
219 #define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
220 #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
221 #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
222
223 #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
224 #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
225 #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
226
227 #define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
228 #define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
229 #define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
230 #define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
231 #define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
232 #define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
233 #define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
234 #define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
235
236 #define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
237 #define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
238 #define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
239 #define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
240 #define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
241 #define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
242
243 #define SSL3_SSL_SESSION_ID_LENGTH 32
244 #define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
245
246 #define SSL3_MASTER_SECRET_SIZE 48
247 #define SSL3_RANDOM_SIZE 32
248 #define SSL3_SESSION_ID_SIZE 32
249 #define SSL3_RT_HEADER_LENGTH 5
250
251 /* Due to MS stuffing up, this can change.... */
252 #if defined(OPENSSL_SYS_WIN16) || \
253 (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32))
254 #define SSL3_RT_MAX_EXTRA (14000)
255 #else
256 #define SSL3_RT_MAX_EXTRA (16384)
257 #endif
258
259 #define SSL3_RT_MAX_PLAIN_LENGTH 16384
260 #ifdef OPENSSL_NO_COMP
261 #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
262 #else
263 #define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH)
264 #endif
265 #define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
266 #define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
267 #define SSL3_RT_MAX_DATA_SIZE (1024*1024)
268
269 #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
270 #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
271
272 #define SSL3_VERSION 0x0300
273 #define SSL3_VERSION_MAJOR 0x03
274 #define SSL3_VERSION_MINOR 0x00
275
276 #define SSL3_RT_CHANGE_CIPHER_SPEC 20
277 #define SSL3_RT_ALERT 21
278 #define SSL3_RT_HANDSHAKE 22
279 #define SSL3_RT_APPLICATION_DATA 23
280
281 #define SSL3_AL_WARNING 1
282 #define SSL3_AL_FATAL 2
283
284 #define SSL3_AD_CLOSE_NOTIFY 0
285 #define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
286 #define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
287 #define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
288 #define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
289 #define SSL3_AD_NO_CERTIFICATE 41
290 #define SSL3_AD_BAD_CERTIFICATE 42
291 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
292 #define SSL3_AD_CERTIFICATE_REVOKED 44
293 #define SSL3_AD_CERTIFICATE_EXPIRED 45
294 #define SSL3_AD_CERTIFICATE_UNKNOWN 46
295 #define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
296
297 typedef struct ssl3_record_st
298 {
299 /*r */ int type; /* type of record */
300 /*rw*/ unsigned int length; /* How many bytes available */
301 /*r */ unsigned int off; /* read/write offset into 'buf' */
302 /*rw*/ unsigned char *data; /* pointer to the record data */
303 /*rw*/ unsigned char *input; /* where the decode bytes are */
304 /*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
305 /*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
306 /*r */ PQ_64BIT seq_num; /* sequence number, needed by DTLS1 */
307 } SSL3_RECORD;
308
309 typedef struct ssl3_buffer_st
310 {
311 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
312 * see ssl3_setup_buffers() */
313 size_t len; /* buffer size */
314 int offset; /* where to 'copy from' */
315 int left; /* how many bytes left */
316 } SSL3_BUFFER;
317
318 #define SSL3_CT_RSA_SIGN 1
319 #define SSL3_CT_DSS_SIGN 2
320 #define SSL3_CT_RSA_FIXED_DH 3
321 #define SSL3_CT_DSS_FIXED_DH 4
322 #define SSL3_CT_RSA_EPHEMERAL_DH 5
323 #define SSL3_CT_DSS_EPHEMERAL_DH 6
324 #define SSL3_CT_FORTEZZA_DMS 20
325 /* SSL3_CT_NUMBER is used to size arrays and it must be large
326 * enough to contain all of the cert types defined either for
327 * SSLv3 and TLSv1.
328 */
329 #define SSL3_CT_NUMBER 7
330
331
332 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
333 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
334 #define SSL3_FLAGS_POP_BUFFER 0x0004
335 #define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
336
337 /* SSL3_FLAGS_SGC_RESTART_DONE is set when we
338 * restart a handshake because of MS SGC and so prevents us
339 * from restarting the handshake in a loop. It's reset on a
340 * renegotiation, so effectively limits the client to one restart
341 * per negotiation. This limits the possibility of a DDoS
342 * attack where the client handshakes in a loop using SGC to
343 * restart. Servers which permit renegotiation can still be
344 * effected, but we can't prevent that.
345 */
346 #define SSL3_FLAGS_SGC_RESTART_DONE 0x0040
347
348 typedef struct ssl3_state_st
349 {
350 long flags;
351 int delay_buf_pop_ret;
352
353 unsigned char read_sequence[8];
354 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
355 unsigned char write_sequence[8];
356 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
357
358 unsigned char server_random[SSL3_RANDOM_SIZE];
359 unsigned char client_random[SSL3_RANDOM_SIZE];
360
361 /* flags for countermeasure against known-IV weakness */
362 int need_empty_fragments;
363 int empty_fragment_done;
364
365 SSL3_BUFFER rbuf; /* read IO goes into here */
366 SSL3_BUFFER wbuf; /* write IO goes into here */
367
368 SSL3_RECORD rrec; /* each decoded record goes in here */
369 SSL3_RECORD wrec; /* goes out from here */
370
371 /* storage for Alert/Handshake protocol data received but not
372 * yet processed by ssl3_read_bytes: */
373 unsigned char alert_fragment[2];
374 unsigned int alert_fragment_len;
375 unsigned char handshake_fragment[4];
376 unsigned int handshake_fragment_len;
377
378 /* partial write - check the numbers match */
379 unsigned int wnum; /* number of bytes sent so far */
380 int wpend_tot; /* number bytes written */
381 int wpend_type;
382 int wpend_ret; /* number of bytes submitted */
383 const unsigned char *wpend_buf;
384
385 /* used during startup, digest all incoming/outgoing packets */
386 EVP_MD_CTX finish_dgst1;
387 EVP_MD_CTX finish_dgst2;
388
389 /* this is set whenerver we see a change_cipher_spec message
390 * come in when we are not looking for one */
391 int change_cipher_spec;
392
393 int warn_alert;
394 int fatal_alert;
395 /* we allow one fatal and one warning alert to be outstanding,
396 * send close alert via the warning alert */
397 int alert_dispatch;
398 unsigned char send_alert[2];
399
400 /* This flag is set when we should renegotiate ASAP, basically when
401 * there is no more data in the read or write buffers */
402 int renegotiate;
403 int total_renegotiations;
404 int num_renegotiations;
405
406 int in_read_app_data;
407
408 struct {
409 /* actually only needs to be 16+20 */
410 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
411
412 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
413 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
414 int finish_md_len;
415 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
416 int peer_finish_md_len;
417
418 unsigned long message_size;
419 int message_type;
420
421 /* used to hold the new cipher we are going to use */
422 SSL_CIPHER *new_cipher;
423 #ifndef OPENSSL_NO_DH
424 DH *dh;
425 #endif
426
427 #ifndef OPENSSL_NO_ECDH
428 EC_KEY *ecdh; /* holds short lived ECDH key */
429 #endif
430
431 /* used when SSL_ST_FLUSH_DATA is entered */
432 int next_state;
433
434 int reuse_message;
435
436 /* used for certificate requests */
437 int cert_req;
438 int ctype_num;
439 char ctype[SSL3_CT_NUMBER];
440 STACK_OF(X509_NAME) *ca_names;
441
442 int use_rsa_tmp;
443
444 int key_block_length;
445 unsigned char *key_block;
446
447 const EVP_CIPHER *new_sym_enc;
448 const EVP_MD *new_hash;
449 #ifndef OPENSSL_NO_COMP
450 const SSL_COMP *new_compression;
451 #else
452 char *new_compression;
453 #endif
454 int cert_request;
455 } tmp;
456
457 /* Connection binding to prevent renegotiation attacks */
458 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
459 unsigned char previous_client_finished_len;
460 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
461 unsigned char previous_server_finished_len;
462 int send_connection_binding; /* TODOEKR */
463 } SSL3_STATE;
464
465
466 /* SSLv3 */
467 /*client */
468 /* extra state */
469 #define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
470 /* write to server */
471 #define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
472 #define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
473 /* read from server */
474 #define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
475 #define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
476 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
477 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
478 #define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
479 #define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
480 #define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
481 #define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
482 #define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
483 #define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
484 #define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
485 #define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
486 /* write to server */
487 #define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
488 #define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
489 #define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
490 #define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
491 #define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
492 #define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
493 #define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
494 #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
495 #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
496 #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
497 #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
498 #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
499 /* read from server */
500 #define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
501 #define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
502 #define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
503 #define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
504 #define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT)
505 #define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT)
506 #define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT)
507 #define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT)
508
509 /* server */
510 /* extra state */
511 #define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
512 /* read from client */
513 /* Do not change the number values, they do matter */
514 #define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
515 #define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
516 #define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
517 /* write to client */
518 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
519 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
520 #define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
521 #define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
522 #define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
523 #define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
524 #define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
525 #define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
526 #define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
527 #define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
528 #define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
529 #define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
530 #define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
531 #define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
532 #define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
533 /* read from client */
534 #define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
535 #define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
536 #define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
537 #define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
538 #define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
539 #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
540 #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
541 #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
542 #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
543 #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
544 /* write to client */
545 #define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
546 #define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
547 #define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
548 #define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
549 #define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT)
550 #define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT)
551 #define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT)
552 #define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT)
553
554 #define SSL3_MT_HELLO_REQUEST 0
555 #define SSL3_MT_CLIENT_HELLO 1
556 #define SSL3_MT_SERVER_HELLO 2
557 #define SSL3_MT_NEWSESSION_TICKET 4
558 #define SSL3_MT_CERTIFICATE 11
559 #define SSL3_MT_SERVER_KEY_EXCHANGE 12
560 #define SSL3_MT_CERTIFICATE_REQUEST 13
561 #define SSL3_MT_SERVER_DONE 14
562 #define SSL3_MT_CERTIFICATE_VERIFY 15
563 #define SSL3_MT_CLIENT_KEY_EXCHANGE 16
564 #define SSL3_MT_FINISHED 20
565 #define SSL3_MT_CERTIFICATE_STATUS 22
566 #define DTLS1_MT_HELLO_VERIFY_REQUEST 3
567
568
569 #define SSL3_MT_CCS 1
570
571 /* These are used when changing over to a new cipher */
572 #define SSL3_CC_READ 0x01
573 #define SSL3_CC_WRITE 0x02
574 #define SSL3_CC_CLIENT 0x10
575 #define SSL3_CC_SERVER 0x20
576 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
577 #define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
578 #define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
579 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
580
581 #ifdef __cplusplus
582 }
583 #endif
584 #endif
585
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