Locking issues.
[openssl.git] / ssl / ssl3.h
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 #ifndef HEADER_SSL3_H 
60 #define HEADER_SSL3_H 
61
62 #ifndef NO_COMP
63 #include <openssl/comp.h>
64 #endif
65 #include <openssl/buffer.h>
66 #include <openssl/evp.h>
67 #include <openssl/ssl.h>
68
69 #ifdef  __cplusplus
70 extern "C" {
71 #endif
72
73 #define SSL3_CK_RSA_NULL_MD5                    0x03000001
74 #define SSL3_CK_RSA_NULL_SHA                    0x03000002
75 #define SSL3_CK_RSA_RC4_40_MD5                  0x03000003
76 #define SSL3_CK_RSA_RC4_128_MD5                 0x03000004
77 #define SSL3_CK_RSA_RC4_128_SHA                 0x03000005
78 #define SSL3_CK_RSA_RC2_40_MD5                  0x03000006
79 #define SSL3_CK_RSA_IDEA_128_SHA                0x03000007
80 #define SSL3_CK_RSA_DES_40_CBC_SHA              0x03000008
81 #define SSL3_CK_RSA_DES_64_CBC_SHA              0x03000009
82 #define SSL3_CK_RSA_DES_192_CBC3_SHA            0x0300000A
83
84 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA           0x0300000B
85 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA           0x0300000C
86 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA         0x0300000D
87 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA           0x0300000E
88 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA           0x0300000F
89 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA         0x03000010
90
91 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA          0x03000011
92 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA          0x03000012
93 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA        0x03000013
94 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA          0x03000014
95 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA          0x03000015
96 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA        0x03000016
97
98 #define SSL3_CK_ADH_RC4_40_MD5                  0x03000017
99 #define SSL3_CK_ADH_RC4_128_MD5                 0x03000018
100 #define SSL3_CK_ADH_DES_40_CBC_SHA              0x03000019
101 #define SSL3_CK_ADH_DES_64_CBC_SHA              0x0300001A
102 #define SSL3_CK_ADH_DES_192_CBC_SHA             0x0300001B
103
104 #define SSL3_CK_FZA_DMS_NULL_SHA                0x0300001C
105 #define SSL3_CK_FZA_DMS_FZA_SHA                 0x0300001D
106 #define SSL3_CK_FZA_DMS_RC4_SHA                 0x0300001E
107
108 /*    VRS Additional Kerberos5 entries
109  */
110 #define SSL3_CK_KRB5_DES_40_CBC_SHA             0x03000021
111 #define SSL3_CK_KRB5_DES_40_CBC_MD5             0x03000022
112 #define SSL3_CK_KRB5_DES_64_CBC_SHA             0x03000023
113 #define SSL3_CK_KRB5_DES_64_CBC_MD5             0x03000024
114 #define SSL3_CK_KRB5_DES_192_CBC3_SHA           0x03000025
115 #define SSL3_CK_KRB5_DES_192_CBC3_MD5           0x03000026
116
117 #define SSL3_TXT_KRB5_DES_40_CBC_SHA            "EXP-KRB5-DES-CBC-SHA"
118 #define SSL3_TXT_KRB5_DES_40_CBC_MD5            "EXP-KRB5-DES-CBC-MD5"
119 #define SSL3_TXT_KRB5_DES_64_CBC_SHA            "KRB5-DES-CBC-SHA"
120 #define SSL3_TXT_KRB5_DES_64_CBC_MD5            "KRB5-DES-CBC-MD5"
121 #define SSL3_TXT_KRB5_DES_192_CBC3_SHA          "KRB5-DES-CBC3-SHA"
122 #define SSL3_TXT_KRB5_DES_192_CBC3_MD5          "KRB5-DES-CBC3-MD5"
123
124 #define SSL3_TXT_RSA_NULL_MD5                   "NULL-MD5"
125 #define SSL3_TXT_RSA_NULL_SHA                   "NULL-SHA"
126 #define SSL3_TXT_RSA_RC4_40_MD5                 "EXP-RC4-MD5"
127 #define SSL3_TXT_RSA_RC4_128_MD5                "RC4-MD5"
128 #define SSL3_TXT_RSA_RC4_128_SHA                "RC4-SHA"
129 #define SSL3_TXT_RSA_RC2_40_MD5                 "EXP-RC2-CBC-MD5"
130 #define SSL3_TXT_RSA_IDEA_128_SHA               "IDEA-CBC-SHA"
131 #define SSL3_TXT_RSA_DES_40_CBC_SHA             "EXP-DES-CBC-SHA"
132 #define SSL3_TXT_RSA_DES_64_CBC_SHA             "DES-CBC-SHA"
133 #define SSL3_TXT_RSA_DES_192_CBC3_SHA           "DES-CBC3-SHA"
134
135 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA          "EXP-DH-DSS-DES-CBC-SHA"
136 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA          "DH-DSS-DES-CBC-SHA"
137 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA        "DH-DSS-DES-CBC3-SHA"
138 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA          "EXP-DH-RSA-DES-CBC-SHA"
139 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA          "DH-RSA-DES-CBC-SHA"
140 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA        "DH-RSA-DES-CBC3-SHA"
141
142 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA         "EXP-EDH-DSS-DES-CBC-SHA"
143 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA         "EDH-DSS-DES-CBC-SHA"
144 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA       "EDH-DSS-DES-CBC3-SHA"
145 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA         "EXP-EDH-RSA-DES-CBC-SHA"
146 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA         "EDH-RSA-DES-CBC-SHA"
147 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA       "EDH-RSA-DES-CBC3-SHA"
148
149 #define SSL3_TXT_ADH_RC4_40_MD5                 "EXP-ADH-RC4-MD5"
150 #define SSL3_TXT_ADH_RC4_128_MD5                "ADH-RC4-MD5"
151 #define SSL3_TXT_ADH_DES_40_CBC_SHA             "EXP-ADH-DES-CBC-SHA"
152 #define SSL3_TXT_ADH_DES_64_CBC_SHA             "ADH-DES-CBC-SHA"
153 #define SSL3_TXT_ADH_DES_192_CBC_SHA            "ADH-DES-CBC3-SHA"
154
155 #define SSL3_TXT_FZA_DMS_NULL_SHA               "FZA-NULL-SHA"
156 #define SSL3_TXT_FZA_DMS_FZA_SHA                "FZA-FZA-CBC-SHA"
157 #define SSL3_TXT_FZA_DMS_RC4_SHA                "FZA-RC4-SHA"
158
159 #define SSL3_SSL_SESSION_ID_LENGTH              32
160 #define SSL3_MAX_SSL_SESSION_ID_LENGTH          32
161
162 #define SSL3_MASTER_SECRET_SIZE                 48
163 #define SSL3_RANDOM_SIZE                        32
164 #define SSL3_SESSION_ID_SIZE                    32
165 #define SSL3_RT_HEADER_LENGTH                   5
166
167 /* Due to MS stuffing up, this can change.... */
168 #if defined(WIN16) || (defined(MSDOS) && !defined(WIN32))
169 #define SSL3_RT_MAX_EXTRA                       (14000)
170 #else
171 #define SSL3_RT_MAX_EXTRA                       (16384)
172 #endif
173
174 #define SSL3_RT_MAX_PLAIN_LENGTH                16384
175 #define SSL3_RT_MAX_COMPRESSED_LENGTH   (1024+SSL3_RT_MAX_PLAIN_LENGTH)
176 #define SSL3_RT_MAX_ENCRYPTED_LENGTH    (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
177 #define SSL3_RT_MAX_PACKET_SIZE         (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
178 #define SSL3_RT_MAX_DATA_SIZE                   (1024*1024)
179
180 #define SSL3_MD_CLIENT_FINISHED_CONST   "\x43\x4C\x4E\x54"
181 #define SSL3_MD_SERVER_FINISHED_CONST   "\x53\x52\x56\x52"
182
183 #define SSL3_VERSION                    0x0300
184 #define SSL3_VERSION_MAJOR              0x03
185 #define SSL3_VERSION_MINOR              0x00
186
187 #define SSL3_RT_CHANGE_CIPHER_SPEC      20
188 #define SSL3_RT_ALERT                   21
189 #define SSL3_RT_HANDSHAKE               22
190 #define SSL3_RT_APPLICATION_DATA        23
191
192 #define SSL3_AL_WARNING                 1
193 #define SSL3_AL_FATAL                   2
194
195 #define SSL3_AD_CLOSE_NOTIFY             0
196 #define SSL3_AD_UNEXPECTED_MESSAGE      10      /* fatal */
197 #define SSL3_AD_BAD_RECORD_MAC          20      /* fatal */
198 #define SSL3_AD_DECOMPRESSION_FAILURE   30      /* fatal */
199 #define SSL3_AD_HANDSHAKE_FAILURE       40      /* fatal */
200 #define SSL3_AD_NO_CERTIFICATE          41
201 #define SSL3_AD_BAD_CERTIFICATE         42
202 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
203 #define SSL3_AD_CERTIFICATE_REVOKED     44
204 #define SSL3_AD_CERTIFICATE_EXPIRED     45
205 #define SSL3_AD_CERTIFICATE_UNKNOWN     46
206 #define SSL3_AD_ILLEGAL_PARAMETER       47      /* fatal */
207
208 typedef struct ssl3_record_st
209         {
210 /*r */  int type;               /* type of record */
211 /*rw*/  unsigned int length;    /* How many bytes available */
212 /*r */  unsigned int off;       /* read/write offset into 'buf' */
213 /*rw*/  unsigned char *data;    /* pointer to the record data */
214 /*rw*/  unsigned char *input;   /* where the decode bytes are */
215 /*r */  unsigned char *comp;    /* only used with decompression - malloc()ed */
216         } SSL3_RECORD;
217
218 typedef struct ssl3_buffer_st
219         {
220         unsigned char *buf;     /* SSL3_RT_MAX_PACKET_SIZE bytes (more if
221                                  * SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER is set) */
222         int offset;             /* where to 'copy from' */
223         int left;               /* how many bytes left */
224         } SSL3_BUFFER;
225
226 #define SSL3_CT_RSA_SIGN                        1
227 #define SSL3_CT_DSS_SIGN                        2
228 #define SSL3_CT_RSA_FIXED_DH                    3
229 #define SSL3_CT_DSS_FIXED_DH                    4
230 #define SSL3_CT_RSA_EPHEMERAL_DH                5
231 #define SSL3_CT_DSS_EPHEMERAL_DH                6
232 #define SSL3_CT_FORTEZZA_DMS                    20
233 #define SSL3_CT_NUMBER                          7
234
235 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS       0x0001
236 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED        0x0002
237 #define SSL3_FLAGS_POP_BUFFER                   0x0004
238 #define TLS1_FLAGS_TLS_PADDING_BUG              0x0008
239
240 typedef struct ssl3_state_st
241         {
242         long flags;
243         int delay_buf_pop_ret;
244
245         unsigned char read_sequence[8];
246         unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
247         unsigned char write_sequence[8];
248         unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
249
250         unsigned char server_random[SSL3_RANDOM_SIZE];
251         unsigned char client_random[SSL3_RANDOM_SIZE];
252
253         SSL3_BUFFER rbuf;       /* read IO goes into here */
254         SSL3_BUFFER wbuf;       /* write IO goes into here */
255
256         SSL3_RECORD rrec;       /* each decoded record goes in here */
257         SSL3_RECORD wrec;       /* goes out from here */
258
259         /* storage for Alert/Handshake protocol data received but not
260          * yet processed by ssl3_read_bytes: */
261         unsigned char alert_fragment[2];
262         unsigned int alert_fragment_len;
263         unsigned char handshake_fragment[4];
264         unsigned int handshake_fragment_len;
265
266         /* partial write - check the numbers match */
267         unsigned int wnum;      /* number of bytes sent so far */
268         int wpend_tot;          /* number bytes written */
269         int wpend_type;
270         int wpend_ret;          /* number of bytes submitted */
271         const unsigned char *wpend_buf;
272
273         /* used during startup, digest all incoming/outgoing packets */
274         EVP_MD_CTX finish_dgst1;
275         EVP_MD_CTX finish_dgst2;
276
277         /* this is set whenerver we see a change_cipher_spec message
278          * come in when we are not looking for one */
279         int change_cipher_spec;
280
281         int warn_alert;
282         int fatal_alert;
283         /* we allow one fatal and one warning alert to be outstanding,
284          * send close alert via the warning alert */
285         int alert_dispatch;
286         unsigned char send_alert[2];
287
288         /* This flag is set when we should renegotiate ASAP, basically when
289          * there is no more data in the read or write buffers */
290         int renegotiate;
291         int total_renegotiations;
292         int num_renegotiations;
293
294         int in_read_app_data;
295
296         struct  {
297                 /* actually only needs to be 16+20 */
298                 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
299
300                 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
301                 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
302                 int finish_md_len;
303                 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
304                 int peer_finish_md_len;
305                 
306                 unsigned long message_size;
307                 int message_type;
308
309                 /* used to hold the new cipher we are going to use */
310                 SSL_CIPHER *new_cipher;
311 #ifndef NO_DH
312                 DH *dh;
313 #endif
314                 /* used when SSL_ST_FLUSH_DATA is entered */
315                 int next_state;                 
316
317                 int reuse_message;
318
319                 /* used for certificate requests */
320                 int cert_req;
321                 int ctype_num;
322                 char ctype[SSL3_CT_NUMBER];
323                 STACK_OF(X509_NAME) *ca_names;
324
325                 int use_rsa_tmp;
326
327                 int key_block_length;
328                 unsigned char *key_block;
329
330                 const EVP_CIPHER *new_sym_enc;
331                 const EVP_MD *new_hash;
332 #ifndef NO_COMP
333                 const SSL_COMP *new_compression;
334 #else
335                 char *new_compression;
336 #endif
337                 int cert_request;
338                 } tmp;
339
340         } SSL3_STATE;
341
342 /* SSLv3 */
343 /*client */
344 /* extra state */
345 #define SSL3_ST_CW_FLUSH                (0x100|SSL_ST_CONNECT)
346 /* write to server */
347 #define SSL3_ST_CW_CLNT_HELLO_A         (0x110|SSL_ST_CONNECT)
348 #define SSL3_ST_CW_CLNT_HELLO_B         (0x111|SSL_ST_CONNECT)
349 /* read from server */
350 #define SSL3_ST_CR_SRVR_HELLO_A         (0x120|SSL_ST_CONNECT)
351 #define SSL3_ST_CR_SRVR_HELLO_B         (0x121|SSL_ST_CONNECT)
352 #define SSL3_ST_CR_CERT_A               (0x130|SSL_ST_CONNECT)
353 #define SSL3_ST_CR_CERT_B               (0x131|SSL_ST_CONNECT)
354 #define SSL3_ST_CR_KEY_EXCH_A           (0x140|SSL_ST_CONNECT)
355 #define SSL3_ST_CR_KEY_EXCH_B           (0x141|SSL_ST_CONNECT)
356 #define SSL3_ST_CR_CERT_REQ_A           (0x150|SSL_ST_CONNECT)
357 #define SSL3_ST_CR_CERT_REQ_B           (0x151|SSL_ST_CONNECT)
358 #define SSL3_ST_CR_SRVR_DONE_A          (0x160|SSL_ST_CONNECT)
359 #define SSL3_ST_CR_SRVR_DONE_B          (0x161|SSL_ST_CONNECT)
360 /* write to server */
361 #define SSL3_ST_CW_CERT_A               (0x170|SSL_ST_CONNECT)
362 #define SSL3_ST_CW_CERT_B               (0x171|SSL_ST_CONNECT)
363 #define SSL3_ST_CW_CERT_C               (0x172|SSL_ST_CONNECT)
364 #define SSL3_ST_CW_CERT_D               (0x173|SSL_ST_CONNECT)
365 #define SSL3_ST_CW_KEY_EXCH_A           (0x180|SSL_ST_CONNECT)
366 #define SSL3_ST_CW_KEY_EXCH_B           (0x181|SSL_ST_CONNECT)
367 #define SSL3_ST_CW_CERT_VRFY_A          (0x190|SSL_ST_CONNECT)
368 #define SSL3_ST_CW_CERT_VRFY_B          (0x191|SSL_ST_CONNECT)
369 #define SSL3_ST_CW_CHANGE_A             (0x1A0|SSL_ST_CONNECT)
370 #define SSL3_ST_CW_CHANGE_B             (0x1A1|SSL_ST_CONNECT)
371 #define SSL3_ST_CW_FINISHED_A           (0x1B0|SSL_ST_CONNECT)
372 #define SSL3_ST_CW_FINISHED_B           (0x1B1|SSL_ST_CONNECT)
373 /* read from server */
374 #define SSL3_ST_CR_CHANGE_A             (0x1C0|SSL_ST_CONNECT)
375 #define SSL3_ST_CR_CHANGE_B             (0x1C1|SSL_ST_CONNECT)
376 #define SSL3_ST_CR_FINISHED_A           (0x1D0|SSL_ST_CONNECT)
377 #define SSL3_ST_CR_FINISHED_B           (0x1D1|SSL_ST_CONNECT)
378
379 /* server */
380 /* extra state */
381 #define SSL3_ST_SW_FLUSH                (0x100|SSL_ST_ACCEPT)
382 /* read from client */
383 /* Do not change the number values, they do matter */
384 #define SSL3_ST_SR_CLNT_HELLO_A         (0x110|SSL_ST_ACCEPT)
385 #define SSL3_ST_SR_CLNT_HELLO_B         (0x111|SSL_ST_ACCEPT)
386 #define SSL3_ST_SR_CLNT_HELLO_C         (0x112|SSL_ST_ACCEPT)
387 /* write to client */
388 #define SSL3_ST_SW_HELLO_REQ_A          (0x120|SSL_ST_ACCEPT)
389 #define SSL3_ST_SW_HELLO_REQ_B          (0x121|SSL_ST_ACCEPT)
390 #define SSL3_ST_SW_HELLO_REQ_C          (0x122|SSL_ST_ACCEPT)
391 #define SSL3_ST_SW_SRVR_HELLO_A         (0x130|SSL_ST_ACCEPT)
392 #define SSL3_ST_SW_SRVR_HELLO_B         (0x131|SSL_ST_ACCEPT)
393 #define SSL3_ST_SW_CERT_A               (0x140|SSL_ST_ACCEPT)
394 #define SSL3_ST_SW_CERT_B               (0x141|SSL_ST_ACCEPT)
395 #define SSL3_ST_SW_KEY_EXCH_A           (0x150|SSL_ST_ACCEPT)
396 #define SSL3_ST_SW_KEY_EXCH_B           (0x151|SSL_ST_ACCEPT)
397 #define SSL3_ST_SW_CERT_REQ_A           (0x160|SSL_ST_ACCEPT)
398 #define SSL3_ST_SW_CERT_REQ_B           (0x161|SSL_ST_ACCEPT)
399 #define SSL3_ST_SW_SRVR_DONE_A          (0x170|SSL_ST_ACCEPT)
400 #define SSL3_ST_SW_SRVR_DONE_B          (0x171|SSL_ST_ACCEPT)
401 /* read from client */
402 #define SSL3_ST_SR_CERT_A               (0x180|SSL_ST_ACCEPT)
403 #define SSL3_ST_SR_CERT_B               (0x181|SSL_ST_ACCEPT)
404 #define SSL3_ST_SR_KEY_EXCH_A           (0x190|SSL_ST_ACCEPT)
405 #define SSL3_ST_SR_KEY_EXCH_B           (0x191|SSL_ST_ACCEPT)
406 #define SSL3_ST_SR_CERT_VRFY_A          (0x1A0|SSL_ST_ACCEPT)
407 #define SSL3_ST_SR_CERT_VRFY_B          (0x1A1|SSL_ST_ACCEPT)
408 #define SSL3_ST_SR_CHANGE_A             (0x1B0|SSL_ST_ACCEPT)
409 #define SSL3_ST_SR_CHANGE_B             (0x1B1|SSL_ST_ACCEPT)
410 #define SSL3_ST_SR_FINISHED_A           (0x1C0|SSL_ST_ACCEPT)
411 #define SSL3_ST_SR_FINISHED_B           (0x1C1|SSL_ST_ACCEPT)
412 /* write to client */
413 #define SSL3_ST_SW_CHANGE_A             (0x1D0|SSL_ST_ACCEPT)
414 #define SSL3_ST_SW_CHANGE_B             (0x1D1|SSL_ST_ACCEPT)
415 #define SSL3_ST_SW_FINISHED_A           (0x1E0|SSL_ST_ACCEPT)
416 #define SSL3_ST_SW_FINISHED_B           (0x1E1|SSL_ST_ACCEPT)
417
418 #define SSL3_MT_HELLO_REQUEST                   0
419 #define SSL3_MT_CLIENT_HELLO                    1
420 #define SSL3_MT_SERVER_HELLO                    2
421 #define SSL3_MT_CERTIFICATE                     11
422 #define SSL3_MT_SERVER_KEY_EXCHANGE             12
423 #define SSL3_MT_CERTIFICATE_REQUEST             13
424 #define SSL3_MT_SERVER_DONE                     14
425 #define SSL3_MT_CERTIFICATE_VERIFY              15
426 #define SSL3_MT_CLIENT_KEY_EXCHANGE             16
427 #define SSL3_MT_FINISHED                        20
428
429 #define SSL3_MT_CCS                             1
430
431 /* These are used when changing over to a new cipher */
432 #define SSL3_CC_READ            0x01
433 #define SSL3_CC_WRITE           0x02
434 #define SSL3_CC_CLIENT          0x10
435 #define SSL3_CC_SERVER          0x20
436 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)  
437 #define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
438 #define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
439 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
440
441 #ifdef  __cplusplus
442 }
443 #endif
444 #endif
445