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.]
62 #include <openssl/rsa.h>
63 #include <openssl/objects.h>
64 #include <openssl/md5.h>
66 static long ssl2_default_timeout(void );
67 const char *ssl2_version_str
="SSLv2" OPENSSL_VERSION_PTEXT
;
69 #define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
71 OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers
[]={
72 /* NULL_WITH_MD5 v3 */
76 SSL2_TXT_NULL_WITH_MD5
,
77 SSL2_CK_NULL_WITH_MD5
,
78 SSL_kRSA
|SSL_aRSA
|SSL_eNULL
|SSL_MD5
|SSL_SSLV2
,
86 /* RC4_128_EXPORT40_WITH_MD5 */
89 SSL2_TXT_RC4_128_EXPORT40_WITH_MD5
,
90 SSL2_CK_RC4_128_EXPORT40_WITH_MD5
,
91 SSL_kRSA
|SSL_aRSA
|SSL_RC4
|SSL_MD5
|SSL_SSLV2
,
99 /* RC4_128_WITH_MD5 */
102 SSL2_TXT_RC4_128_WITH_MD5
,
103 SSL2_CK_RC4_128_WITH_MD5
,
104 SSL_kRSA
|SSL_aRSA
|SSL_RC4
|SSL_MD5
|SSL_SSLV2
,
105 SSL_NOT_EXP
|SSL_MEDIUM
,
112 /* RC2_128_CBC_EXPORT40_WITH_MD5 */
115 SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5
,
116 SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5
,
117 SSL_kRSA
|SSL_aRSA
|SSL_RC2
|SSL_MD5
|SSL_SSLV2
,
118 SSL_EXPORT
|SSL_EXP40
,
125 /* RC2_128_CBC_WITH_MD5 */
128 SSL2_TXT_RC2_128_CBC_WITH_MD5
,
129 SSL2_CK_RC2_128_CBC_WITH_MD5
,
130 SSL_kRSA
|SSL_aRSA
|SSL_RC2
|SSL_MD5
|SSL_SSLV2
,
131 SSL_NOT_EXP
|SSL_MEDIUM
,
138 /* IDEA_128_CBC_WITH_MD5 */
141 SSL2_TXT_IDEA_128_CBC_WITH_MD5
,
142 SSL2_CK_IDEA_128_CBC_WITH_MD5
,
143 SSL_kRSA
|SSL_aRSA
|SSL_IDEA
|SSL_MD5
|SSL_SSLV2
,
144 SSL_NOT_EXP
|SSL_MEDIUM
,
151 /* DES_64_CBC_WITH_MD5 */
154 SSL2_TXT_DES_64_CBC_WITH_MD5
,
155 SSL2_CK_DES_64_CBC_WITH_MD5
,
156 SSL_kRSA
|SSL_aRSA
|SSL_DES
|SSL_MD5
|SSL_SSLV2
,
164 /* DES_192_EDE3_CBC_WITH_MD5 */
167 SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5
,
168 SSL2_CK_DES_192_EDE3_CBC_WITH_MD5
,
169 SSL_kRSA
|SSL_aRSA
|SSL_3DES
|SSL_MD5
|SSL_SSLV2
,
170 SSL_NOT_EXP
|SSL_HIGH
,
177 /* RC4_64_WITH_MD5 */
181 SSL2_TXT_RC4_64_WITH_MD5
,
182 SSL2_CK_RC4_64_WITH_MD5
,
183 SSL_kRSA
|SSL_aRSA
|SSL_RC4
|SSL_MD5
|SSL_SSLV2
,
192 /* NULL SSLeay (testing) */
207 /* end of list :-) */
210 static SSL_METHOD SSLv2_data
= {
212 ssl2_new
, /* local */
213 ssl2_clear
, /* local */
214 ssl2_free
, /* local */
215 ssl_undefined_function
,
216 ssl_undefined_function
,
221 ssl_ok
, /* NULL - renegotiate */
222 ssl_ok
, /* NULL - check renegotiate */
223 ssl2_ctrl
, /* local */
224 ssl2_ctx_ctrl
, /* local */
225 ssl2_get_cipher_by_char
,
226 ssl2_put_cipher_by_char
,
231 ssl2_default_timeout
,
232 &ssl3_undef_enc_method
,
233 ssl_undefined_function
,
234 ssl2_callback_ctrl
, /* local */
235 ssl2_ctx_callback_ctrl
, /* local */
238 static long ssl2_default_timeout(void)
243 SSL_METHOD
*sslv2_base_method(void)
248 int ssl2_num_ciphers(void)
250 return(SSL2_NUM_CIPHERS
);
253 SSL_CIPHER
*ssl2_get_cipher(unsigned int u
)
255 if (u
< SSL2_NUM_CIPHERS
)
256 return(&(ssl2_ciphers
[SSL2_NUM_CIPHERS
-1-u
]));
261 int ssl2_pending(SSL
*s
)
263 return(s
->s2
->ract_data_length
);
270 if ((s2
=OPENSSL_malloc(sizeof *s2
)) == NULL
) goto err
;
271 memset(s2
,0,sizeof *s2
);
273 if ((s2
->rbuf
=OPENSSL_malloc(
274 SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
+2)) == NULL
) goto err
;
275 if ((s2
->wbuf
=OPENSSL_malloc(
276 SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER
+2)) == NULL
) goto err
;
284 if (s2
->wbuf
!= NULL
) OPENSSL_free(s2
->wbuf
);
285 if (s2
->rbuf
!= NULL
) OPENSSL_free(s2
->rbuf
);
291 void ssl2_free(SSL
*s
)
299 if (s2
->rbuf
!= NULL
) OPENSSL_free(s2
->rbuf
);
300 if (s2
->wbuf
!= NULL
) OPENSSL_free(s2
->wbuf
);
301 memset(s2
,0,sizeof *s2
);
306 void ssl2_clear(SSL
*s
)
309 unsigned char *rbuf
,*wbuf
;
316 memset(s2
,0,sizeof *s2
);
322 s
->version
=SSL2_VERSION
;
326 long ssl2_ctrl(SSL
*s
, int cmd
, long larg
, char *parg
)
332 case SSL_CTRL_GET_SESSION_REUSED
:
341 long ssl2_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)())
346 long ssl2_ctx_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, char *parg
)
351 long ssl2_ctx_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)())
356 /* This function needs to check if the ciphers required are actually
358 SSL_CIPHER
*ssl2_get_cipher_by_char(const unsigned char *p
)
361 static SSL_CIPHER
*sorted
[SSL2_NUM_CIPHERS
];
362 SSL_CIPHER c
,*cp
= &c
,**cpp
;
368 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
370 for (i
=0; i
<SSL2_NUM_CIPHERS
; i
++)
371 sorted
[i
]= &(ssl2_ciphers
[i
]);
373 qsort( (char *)sorted
,
374 SSL2_NUM_CIPHERS
,sizeof(SSL_CIPHER
*),
375 FP_ICC ssl_cipher_ptr_id_cmp
);
377 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
381 id
=0x02000000L
|((unsigned long)p
[0]<<16L)|
382 ((unsigned long)p
[1]<<8L)|(unsigned long)p
[2];
384 cpp
=(SSL_CIPHER
**)OBJ_bsearch((char *)&cp
,
386 SSL2_NUM_CIPHERS
,sizeof(SSL_CIPHER
*),
387 (int (*)())ssl_cipher_ptr_id_cmp
);
388 if ((cpp
== NULL
) || !(*cpp
)->valid
)
394 int ssl2_put_cipher_by_char(const SSL_CIPHER
*c
, unsigned char *p
)
401 if ((l
& 0xff000000) != 0x02000000) return(0);
402 p
[0]=((unsigned char)(l
>>16L))&0xFF;
403 p
[1]=((unsigned char)(l
>> 8L))&0xFF;
404 p
[2]=((unsigned char)(l
))&0xFF;
409 void ssl2_generate_key_material(SSL
*s
)
416 #ifdef CHARSET_EBCDIC
417 c
= os_toascii
['0']; /* Must be an ASCII '0', not EBCDIC '0',
421 km
=s
->s2
->key_material
;
422 for (i
=0; i
<s
->s2
->key_material_length
; i
+=MD5_DIGEST_LENGTH
)
426 MD5_Update(&ctx
,s
->session
->master_key
,s
->session
->master_key_length
);
427 MD5_Update(&ctx
,&c
,1);
429 MD5_Update(&ctx
,s
->s2
->challenge
,s
->s2
->challenge_length
);
430 MD5_Update(&ctx
,s
->s2
->conn_id
,s
->s2
->conn_id_length
);
432 km
+=MD5_DIGEST_LENGTH
;
436 void ssl2_return_error(SSL
*s
, int err
)
448 void ssl2_write_error(SSL
*s
)
450 unsigned char buf
[3];
453 buf
[0]=SSL2_MT_ERROR
;
454 buf
[1]=(s
->error_code
>>8)&0xff;
455 buf
[2]=(s
->error_code
)&0xff;
457 /* state=s->rwstate;*/
460 i
=ssl2_write(s
,&(buf
[3-error
]),error
);
461 /* if (i == error) s->rwstate=state; */
465 else if (i
!= s
->error
)
471 int ssl2_shutdown(SSL
*s
)
473 s
->shutdown
=(SSL_SENT_SHUTDOWN
|SSL_RECEIVED_SHUTDOWN
);
479 static void *dummy
=&dummy
;