0528588aa9f3ecfbb96f0cb229ad7a9f5531ee18
[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 OPENSSL_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(OPENSSL_SYS_WIN16) || \
169         (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32))
170 #define SSL3_RT_MAX_EXTRA                       (14000)
171 #else
172 #define SSL3_RT_MAX_EXTRA                       (16384)
173 #endif
174
175 #define SSL3_RT_MAX_PLAIN_LENGTH                16384
176 #define SSL3_RT_MAX_COMPRESSED_LENGTH   (1024+SSL3_RT_MAX_PLAIN_LENGTH)
177 #define SSL3_RT_MAX_ENCRYPTED_LENGTH    (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
178 #define SSL3_RT_MAX_PACKET_SIZE         (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
179 #define SSL3_RT_MAX_DATA_SIZE                   (1024*1024)
180
181 #define SSL3_MD_CLIENT_FINISHED_CONST   "\x43\x4C\x4E\x54"
182 #define SSL3_MD_SERVER_FINISHED_CONST   "\x53\x52\x56\x52"
183
184 #define SSL3_VERSION                    0x0300
185 #define SSL3_VERSION_MAJOR              0x03
186 #define SSL3_VERSION_MINOR              0x00
187
188 #define SSL3_RT_CHANGE_CIPHER_SPEC      20
189 #define SSL3_RT_ALERT                   21
190 #define SSL3_RT_HANDSHAKE               22
191 #define SSL3_RT_APPLICATION_DATA        23
192
193 #define SSL3_AL_WARNING                 1
194 #define SSL3_AL_FATAL                   2
195
196 #define SSL3_AD_CLOSE_NOTIFY             0
197 #define SSL3_AD_UNEXPECTED_MESSAGE      10      /* fatal */
198 #define SSL3_AD_BAD_RECORD_MAC          20      /* fatal */
199 #define SSL3_AD_DECOMPRESSION_FAILURE   30      /* fatal */
200 #define SSL3_AD_HANDSHAKE_FAILURE       40      /* fatal */
201 #define SSL3_AD_NO_CERTIFICATE          41
202 #define SSL3_AD_BAD_CERTIFICATE         42
203 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
204 #define SSL3_AD_CERTIFICATE_REVOKED     44
205 #define SSL3_AD_CERTIFICATE_EXPIRED     45
206 #define SSL3_AD_CERTIFICATE_UNKNOWN     46
207 #define SSL3_AD_ILLEGAL_PARAMETER       47      /* fatal */
208
209 typedef struct ssl3_record_st
210         {
211 /*r */  int type;               /* type of record */
212 /*rw*/  unsigned int length;    /* How many bytes available */
213 /*r */  unsigned int off;       /* read/write offset into 'buf' */
214 /*rw*/  unsigned char *data;    /* pointer to the record data */
215 /*rw*/  unsigned char *input;   /* where the decode bytes are */
216 /*r */  unsigned char *comp;    /* only used with decompression - malloc()ed */
217         } SSL3_RECORD;
218
219 typedef struct ssl3_buffer_st
220         {
221         unsigned char *buf;     /* SSL3_RT_MAX_PACKET_SIZE bytes (more if
222                                  * SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER is set) */
223         int offset;             /* where to 'copy from' */
224         int left;               /* how many bytes left */
225         } SSL3_BUFFER;
226
227 #define SSL3_CT_RSA_SIGN                        1
228 #define SSL3_CT_DSS_SIGN                        2
229 #define SSL3_CT_RSA_FIXED_DH                    3
230 #define SSL3_CT_DSS_FIXED_DH                    4
231 #define SSL3_CT_RSA_EPHEMERAL_DH                5
232 #define SSL3_CT_DSS_EPHEMERAL_DH                6
233 #define SSL3_CT_FORTEZZA_DMS                    20
234 #define SSL3_CT_NUMBER                          7
235
236 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS       0x0001
237 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED        0x0002
238 #define SSL3_FLAGS_POP_BUFFER                   0x0004
239 #define TLS1_FLAGS_TLS_PADDING_BUG              0x0008
240
241 typedef struct ssl3_state_st
242         {
243         long flags;
244         int delay_buf_pop_ret;
245
246         unsigned char read_sequence[8];
247         unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
248         unsigned char write_sequence[8];
249         unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
250
251         unsigned char server_random[SSL3_RANDOM_SIZE];
252         unsigned char client_random[SSL3_RANDOM_SIZE];
253
254         SSL3_BUFFER rbuf;       /* read IO goes into here */
255         SSL3_BUFFER wbuf;       /* write IO goes into here */
256
257         SSL3_RECORD rrec;       /* each decoded record goes in here */
258         SSL3_RECORD wrec;       /* goes out from here */
259
260         /* storage for Alert/Handshake protocol data received but not
261          * yet processed by ssl3_read_bytes: */
262         unsigned char alert_fragment[2];
263         unsigned int alert_fragment_len;
264         unsigned char handshake_fragment[4];
265         unsigned int handshake_fragment_len;
266
267         /* partial write - check the numbers match */
268         unsigned int wnum;      /* number of bytes sent so far */
269         int wpend_tot;          /* number bytes written */
270         int wpend_type;
271         int wpend_ret;          /* number of bytes submitted */
272         const unsigned char *wpend_buf;
273
274         /* used during startup, digest all incoming/outgoing packets */
275         EVP_MD_CTX finish_dgst1;
276         EVP_MD_CTX finish_dgst2;
277
278         /* this is set whenerver we see a change_cipher_spec message
279          * come in when we are not looking for one */
280         int change_cipher_spec;
281
282         int warn_alert;
283         int fatal_alert;
284         /* we allow one fatal and one warning alert to be outstanding,
285          * send close alert via the warning alert */
286         int alert_dispatch;
287         unsigned char send_alert[2];
288
289         /* This flag is set when we should renegotiate ASAP, basically when
290          * there is no more data in the read or write buffers */
291         int renegotiate;
292         int total_renegotiations;
293         int num_renegotiations;
294
295         int in_read_app_data;
296
297         struct  {
298                 /* actually only needs to be 16+20 */
299                 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
300
301                 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
302                 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
303                 int finish_md_len;
304                 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
305                 int peer_finish_md_len;
306                 
307                 unsigned long message_size;
308                 int message_type;
309
310                 /* used to hold the new cipher we are going to use */
311                 SSL_CIPHER *new_cipher;
312 #ifndef OPENSSL_NO_DH
313                 DH *dh;
314 #endif
315                 /* used when SSL_ST_FLUSH_DATA is entered */
316                 int next_state;                 
317
318                 int reuse_message;
319
320                 /* used for certificate requests */
321                 int cert_req;
322                 int ctype_num;
323                 char ctype[SSL3_CT_NUMBER];
324                 STACK_OF(X509_NAME) *ca_names;
325
326                 int use_rsa_tmp;
327
328                 int key_block_length;
329                 unsigned char *key_block;
330
331                 const EVP_CIPHER *new_sym_enc;
332                 const EVP_MD *new_hash;
333 #ifndef OPENSSL_NO_COMP
334                 const SSL_COMP *new_compression;
335 #else
336                 char *new_compression;
337 #endif
338                 int cert_request;
339                 } tmp;
340
341         } SSL3_STATE;
342
343 /* SSLv3 */
344 /*client */
345 /* extra state */
346 #define SSL3_ST_CW_FLUSH                (0x100|SSL_ST_CONNECT)
347 /* write to server */
348 #define SSL3_ST_CW_CLNT_HELLO_A         (0x110|SSL_ST_CONNECT)
349 #define SSL3_ST_CW_CLNT_HELLO_B         (0x111|SSL_ST_CONNECT)
350 /* read from server */
351 #define SSL3_ST_CR_SRVR_HELLO_A         (0x120|SSL_ST_CONNECT)
352 #define SSL3_ST_CR_SRVR_HELLO_B         (0x121|SSL_ST_CONNECT)
353 #define SSL3_ST_CR_CERT_A               (0x130|SSL_ST_CONNECT)
354 #define SSL3_ST_CR_CERT_B               (0x131|SSL_ST_CONNECT)
355 #define SSL3_ST_CR_KEY_EXCH_A           (0x140|SSL_ST_CONNECT)
356 #define SSL3_ST_CR_KEY_EXCH_B           (0x141|SSL_ST_CONNECT)
357 #define SSL3_ST_CR_CERT_REQ_A           (0x150|SSL_ST_CONNECT)
358 #define SSL3_ST_CR_CERT_REQ_B           (0x151|SSL_ST_CONNECT)
359 #define SSL3_ST_CR_SRVR_DONE_A          (0x160|SSL_ST_CONNECT)
360 #define SSL3_ST_CR_SRVR_DONE_B          (0x161|SSL_ST_CONNECT)
361 /* write to server */
362 #define SSL3_ST_CW_CERT_A               (0x170|SSL_ST_CONNECT)
363 #define SSL3_ST_CW_CERT_B               (0x171|SSL_ST_CONNECT)
364 #define SSL3_ST_CW_CERT_C               (0x172|SSL_ST_CONNECT)
365 #define SSL3_ST_CW_CERT_D               (0x173|SSL_ST_CONNECT)
366 #define SSL3_ST_CW_KEY_EXCH_A           (0x180|SSL_ST_CONNECT)
367 #define SSL3_ST_CW_KEY_EXCH_B           (0x181|SSL_ST_CONNECT)
368 #define SSL3_ST_CW_CERT_VRFY_A          (0x190|SSL_ST_CONNECT)
369 #define SSL3_ST_CW_CERT_VRFY_B          (0x191|SSL_ST_CONNECT)
370 #define SSL3_ST_CW_CHANGE_A             (0x1A0|SSL_ST_CONNECT)
371 #define SSL3_ST_CW_CHANGE_B             (0x1A1|SSL_ST_CONNECT)
372 #define SSL3_ST_CW_FINISHED_A           (0x1B0|SSL_ST_CONNECT)
373 #define SSL3_ST_CW_FINISHED_B           (0x1B1|SSL_ST_CONNECT)
374 /* read from server */
375 #define SSL3_ST_CR_CHANGE_A             (0x1C0|SSL_ST_CONNECT)
376 #define SSL3_ST_CR_CHANGE_B             (0x1C1|SSL_ST_CONNECT)
377 #define SSL3_ST_CR_FINISHED_A           (0x1D0|SSL_ST_CONNECT)
378 #define SSL3_ST_CR_FINISHED_B           (0x1D1|SSL_ST_CONNECT)
379
380 /* server */
381 /* extra state */
382 #define SSL3_ST_SW_FLUSH                (0x100|SSL_ST_ACCEPT)
383 /* read from client */
384 /* Do not change the number values, they do matter */
385 #define SSL3_ST_SR_CLNT_HELLO_A         (0x110|SSL_ST_ACCEPT)
386 #define SSL3_ST_SR_CLNT_HELLO_B         (0x111|SSL_ST_ACCEPT)
387 #define SSL3_ST_SR_CLNT_HELLO_C         (0x112|SSL_ST_ACCEPT)
388 /* write to client */
389 #define SSL3_ST_SW_HELLO_REQ_A          (0x120|SSL_ST_ACCEPT)
390 #define SSL3_ST_SW_HELLO_REQ_B          (0x121|SSL_ST_ACCEPT)
391 #define SSL3_ST_SW_HELLO_REQ_C          (0x122|SSL_ST_ACCEPT)
392 #define SSL3_ST_SW_SRVR_HELLO_A         (0x130|SSL_ST_ACCEPT)
393 #define SSL3_ST_SW_SRVR_HELLO_B         (0x131|SSL_ST_ACCEPT)
394 #define SSL3_ST_SW_CERT_A               (0x140|SSL_ST_ACCEPT)
395 #define SSL3_ST_SW_CERT_B               (0x141|SSL_ST_ACCEPT)
396 #define SSL3_ST_SW_KEY_EXCH_A           (0x150|SSL_ST_ACCEPT)
397 #define SSL3_ST_SW_KEY_EXCH_B           (0x151|SSL_ST_ACCEPT)
398 #define SSL3_ST_SW_CERT_REQ_A           (0x160|SSL_ST_ACCEPT)
399 #define SSL3_ST_SW_CERT_REQ_B           (0x161|SSL_ST_ACCEPT)
400 #define SSL3_ST_SW_SRVR_DONE_A          (0x170|SSL_ST_ACCEPT)
401 #define SSL3_ST_SW_SRVR_DONE_B          (0x171|SSL_ST_ACCEPT)
402 /* read from client */
403 #define SSL3_ST_SR_CERT_A               (0x180|SSL_ST_ACCEPT)
404 #define SSL3_ST_SR_CERT_B               (0x181|SSL_ST_ACCEPT)
405 #define SSL3_ST_SR_KEY_EXCH_A           (0x190|SSL_ST_ACCEPT)
406 #define SSL3_ST_SR_KEY_EXCH_B           (0x191|SSL_ST_ACCEPT)
407 #define SSL3_ST_SR_CERT_VRFY_A          (0x1A0|SSL_ST_ACCEPT)
408 #define SSL3_ST_SR_CERT_VRFY_B          (0x1A1|SSL_ST_ACCEPT)
409 #define SSL3_ST_SR_CHANGE_A             (0x1B0|SSL_ST_ACCEPT)
410 #define SSL3_ST_SR_CHANGE_B             (0x1B1|SSL_ST_ACCEPT)
411 #define SSL3_ST_SR_FINISHED_A           (0x1C0|SSL_ST_ACCEPT)
412 #define SSL3_ST_SR_FINISHED_B           (0x1C1|SSL_ST_ACCEPT)
413 /* write to client */
414 #define SSL3_ST_SW_CHANGE_A             (0x1D0|SSL_ST_ACCEPT)
415 #define SSL3_ST_SW_CHANGE_B             (0x1D1|SSL_ST_ACCEPT)
416 #define SSL3_ST_SW_FINISHED_A           (0x1E0|SSL_ST_ACCEPT)
417 #define SSL3_ST_SW_FINISHED_B           (0x1E1|SSL_ST_ACCEPT)
418
419 #define SSL3_MT_HELLO_REQUEST                   0
420 #define SSL3_MT_CLIENT_HELLO                    1
421 #define SSL3_MT_SERVER_HELLO                    2
422 #define SSL3_MT_CERTIFICATE                     11
423 #define SSL3_MT_SERVER_KEY_EXCHANGE             12
424 #define SSL3_MT_CERTIFICATE_REQUEST             13
425 #define SSL3_MT_SERVER_DONE                     14
426 #define SSL3_MT_CERTIFICATE_VERIFY              15
427 #define SSL3_MT_CLIENT_KEY_EXCHANGE             16
428 #define SSL3_MT_FINISHED                        20
429
430 #define SSL3_MT_CCS                             1
431
432 /* These are used when changing over to a new cipher */
433 #define SSL3_CC_READ            0x01
434 #define SSL3_CC_WRITE           0x02
435 #define SSL3_CC_CLIENT          0x10
436 #define SSL3_CC_SERVER          0x20
437 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)  
438 #define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
439 #define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
440 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
441
442 #ifdef  __cplusplus
443 }
444 #endif
445 #endif
446