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1/* ssl/ssl2.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_SSL2_H
60#define HEADER_SSL2_H
61
62#ifdef __cplusplus
63extern "C" {
64#endif
65
66/* Protocol Version Codes */
67#define SSL2_VERSION 0x0002
68#define SSL2_VERSION_MAJOR 0x00
69#define SSL2_VERSION_MINOR 0x02
70/* #define SSL2_CLIENT_VERSION 0x0002 */
71/* #define SSL2_SERVER_VERSION 0x0002 */
72
73/* Protocol Message Codes */
74#define SSL2_MT_ERROR 0
75#define SSL2_MT_CLIENT_HELLO 1
76#define SSL2_MT_CLIENT_MASTER_KEY 2
77#define SSL2_MT_CLIENT_FINISHED 3
78#define SSL2_MT_SERVER_HELLO 4
79#define SSL2_MT_SERVER_VERIFY 5
80#define SSL2_MT_SERVER_FINISHED 6
81#define SSL2_MT_REQUEST_CERTIFICATE 7
82#define SSL2_MT_CLIENT_CERTIFICATE 8
83
84/* Error Message Codes */
85#define SSL2_PE_UNDEFINED_ERROR 0x0000
86#define SSL2_PE_NO_CIPHER 0x0001
87#define SSL2_PE_NO_CERTIFICATE 0x0002
88#define SSL2_PE_BAD_CERTIFICATE 0x0004
89#define SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE 0x0006
90
91/* Cipher Kind Values */
92#define SSL2_CK_NULL_WITH_MD5 0x02000000 /* v3 */
93#define SSL2_CK_RC4_128_WITH_MD5 0x02010080
94#define SSL2_CK_RC4_128_EXPORT40_WITH_MD5 0x02020080
95#define SSL2_CK_RC2_128_CBC_WITH_MD5 0x02030080
96#define SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5 0x02040080
97#define SSL2_CK_IDEA_128_CBC_WITH_MD5 0x02050080
98#define SSL2_CK_DES_64_CBC_WITH_MD5 0x02060040
99#define SSL2_CK_DES_64_CBC_WITH_SHA 0x02060140 /* v3 */
100#define SSL2_CK_DES_192_EDE3_CBC_WITH_MD5 0x020700c0
101#define SSL2_CK_DES_192_EDE3_CBC_WITH_SHA 0x020701c0 /* v3 */
102#define SSL2_CK_RC4_64_WITH_MD5 0x02080080 /* MS hack */
103
104#define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */
105#define SSL2_CK_NULL 0x02ff0810 /* SSLeay */
106
107#define SSL2_TXT_DES_64_CFB64_WITH_MD5_1 "DES-CFB-M1"
108#define SSL2_TXT_NULL_WITH_MD5 "NULL-MD5"
109#define SSL2_TXT_RC4_128_WITH_MD5 "RC4-MD5"
110#define SSL2_TXT_RC4_128_EXPORT40_WITH_MD5 "EXP-RC4-MD5"
111#define SSL2_TXT_RC2_128_CBC_WITH_MD5 "RC2-CBC-MD5"
112#define SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 "EXP-RC2-CBC-MD5"
113#define SSL2_TXT_IDEA_128_CBC_WITH_MD5 "IDEA-CBC-MD5"
114#define SSL2_TXT_DES_64_CBC_WITH_MD5 "DES-CBC-MD5"
115#define SSL2_TXT_DES_64_CBC_WITH_SHA "DES-CBC-SHA"
116#define SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5 "DES-CBC3-MD5"
117#define SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA "DES-CBC3-SHA"
118#define SSL2_TXT_RC4_64_WITH_MD5 "RC4-64-MD5"
119
120#define SSL2_TXT_NULL "NULL"
121
122/* Flags for the SSL_CIPHER.algorithm2 field */
123#define SSL2_CF_5_BYTE_ENC 0x01
124#define SSL2_CF_8_BYTE_ENC 0x02
125
126/* Certificate Type Codes */
127#define SSL2_CT_X509_CERTIFICATE 0x01
128
129/* Authentication Type Code */
130#define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01
131
132#define SSL2_MAX_SSL_SESSION_ID_LENGTH 32
133
134/* Upper/Lower Bounds */
135#define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256
136#ifdef MPE
137#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u
138#else
139#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */
140#endif
141#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */
142
143#define SSL2_CHALLENGE_LENGTH 16
144/*#define SSL2_CHALLENGE_LENGTH 32 */
145#define SSL2_MIN_CHALLENGE_LENGTH 16
146#define SSL2_MAX_CHALLENGE_LENGTH 32
147#define SSL2_CONNECTION_ID_LENGTH 16
148#define SSL2_MAX_CONNECTION_ID_LENGTH 16
149#define SSL2_SSL_SESSION_ID_LENGTH 16
150#define SSL2_MAX_CERT_CHALLENGE_LENGTH 32
151#define SSL2_MIN_CERT_CHALLENGE_LENGTH 16
152#define SSL2_MAX_KEY_MATERIAL_LENGTH 24
153
154#ifndef HEADER_SSL_LOCL_H
155#define CERT char
156#endif
157
158typedef struct ssl2_state_st
159 {
160 int three_byte_header;
161 int clear_text; /* clear text */
162 int escape; /* not used in SSLv2 */
163 int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */
164
165 /* non-blocking io info, used to make sure the same
166 * args were passwd */
167 unsigned int wnum; /* number of bytes sent so far */
168 int wpend_tot;
169 const unsigned char *wpend_buf;
170
171 int wpend_off; /* offset to data to write */
172 int wpend_len; /* number of bytes passwd to write */
173 int wpend_ret; /* number of bytes to return to caller */
174
175 /* buffer raw data */
176 int rbuf_left;
177 int rbuf_offs;
178 unsigned char *rbuf;
179 unsigned char *wbuf;
180
181 unsigned char *write_ptr;/* used to point to the start due to
182 * 2/3 byte header. */
183
184 unsigned int padding;
185 unsigned int rlength; /* passed to ssl2_enc */
186 int ract_data_length; /* Set when things are encrypted. */
187 unsigned int wlength; /* passed to ssl2_enc */
188 int wact_data_length; /* Set when things are decrypted. */
189 unsigned char *ract_data;
190 unsigned char *wact_data;
191 unsigned char *mac_data;
192 unsigned char *pad_data;
193
194 unsigned char *read_key;
195 unsigned char *write_key;
196
197 /* Stuff specifically to do with this SSL session */
198 unsigned int challenge_length;
199 unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH];
200 unsigned int conn_id_length;
201 unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH];
202 unsigned int key_material_length;
203 unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2];
204
205 unsigned long read_sequence;
206 unsigned long write_sequence;
207
208 struct {
209 unsigned int conn_id_length;
210 unsigned int cert_type;
211 unsigned int cert_length;
212 int csl;
213 int clear;
214 unsigned int enc;
215 unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH];
216 int cipher_spec_length;
217 unsigned int session_id_length;
218 unsigned int clen;
219 unsigned int rlen;
220 } tmp;
221 } SSL2_STATE;
222
223/* SSLv2 */
224/* client */
225#define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT)
226#define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT)
227#define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT)
228#define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT)
229#define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT)
230#define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT)
231#define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT)
232#define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT)
233#define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT)
234#define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT)
235#define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT)
236#define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT)
237#define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT)
238#define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT)
239#define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT)
240#define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT)
241#define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT)
242#define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT)
243/* server */
244#define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT)
245#define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT)
246#define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT)
247#define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT)
248#define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT)
249#define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT)
250#define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT)
251#define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT)
252#define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT)
253#define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT)
254#define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT)
255#define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT)
256#define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT)
257#define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT)
258#define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT)
259#define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT)
260#define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT)
261#define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT)
262#define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT)
263#define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT)
264
265#ifdef __cplusplus
266}
267#endif
268#endif
269
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