2
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23
* Redistribution and use in source and binary forms, with or without
24
* modification, are permitted provided that the following conditions
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)"
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
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.]
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 */
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
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
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 */
104
#define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */
105
#define SSL2_CK_NULL 0x02ff0810 /* SSLeay */
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"
120
#define SSL2_TXT_NULL "NULL"
122
/* Flags for the SSL_CIPHER.algorithm2 field */
123
#define SSL2_CF_5_BYTE_ENC 0x01
124
#define SSL2_CF_8_BYTE_ENC 0x02
126
/* Certificate Type Codes */
127
#define SSL2_CT_X509_CERTIFICATE 0x01
129
/* Authentication Type Code */
130
#define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01
132
#define SSL2_MAX_SSL_SESSION_ID_LENGTH 32
134
/* Upper/Lower Bounds */
135
#define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256
136
#ifdef OPENSSL_SYS_MPE
137
#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u
139
#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */
141
#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */
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
154
#ifndef HEADER_SSL_LOCL_H
158
typedef struct ssl2_state_st
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 */
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 */
169
const unsigned char *wpend_buf;
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 */
175
/* buffer raw data */
181
unsigned char *write_ptr;/* used to point to the start due to
182
* 2/3 byte header. */
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;
193
unsigned char *read_key;
194
unsigned char *write_key;
196
/* Stuff specifically to do with this SSL session */
197
unsigned int challenge_length;
198
unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH];
199
unsigned int conn_id_length;
200
unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH];
201
unsigned int key_material_length;
202
unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2];
204
unsigned long read_sequence;
205
unsigned long write_sequence;
208
unsigned int conn_id_length;
209
unsigned int cert_type;
210
unsigned int cert_length;
214
unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH];
215
unsigned int cipher_spec_length;
216
unsigned int session_id_length;
224
#define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT)
225
#define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT)
226
#define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT)
227
#define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT)
228
#define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT)
229
#define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT)
230
#define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT)
231
#define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT)
232
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT)
233
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT)
234
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT)
235
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT)
236
#define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT)
237
#define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT)
238
#define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT)
239
#define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT)
240
#define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT)
241
#define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT)
243
#define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT)
244
#define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT)
245
#define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT)
246
#define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT)
247
#define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT)
248
#define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT)
249
#define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT)
250
#define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT)
251
#define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT)
252
#define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT)
253
#define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT)
254
#define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT)
255
#define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT)
256
#define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT)
257
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT)
258
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT)
259
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT)
260
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT)
261
#define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT)
262
#define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT)