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.]
61 #include <openssl/rsa.h>
62 #include <openssl/objects.h>
65 static long ssl2_default_timeout(void );
66 const char *ssl2_version_str="SSLv2" OPENSSL_VERSION_PTEXT;
68 #define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
70 SSL_CIPHER ssl2_ciphers[]={
71 /* NULL_WITH_MD5 v3 */
75 SSL2_TXT_NULL_WITH_MD5,
76 SSL2_CK_NULL_WITH_MD5,
77 SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_EXP40|SSL_SSLV2,
82 /* RC4_128_EXPORT40_WITH_MD5 */
85 SSL2_TXT_RC4_128_EXPORT40_WITH_MD5,
86 SSL2_CK_RC4_128_EXPORT40_WITH_MD5,
87 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_EXP40|SSL_SSLV2,
91 /* RC4_128_WITH_MD5 */
94 SSL2_TXT_RC4_128_WITH_MD5,
95 SSL2_CK_RC4_128_WITH_MD5,
96 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
100 /* RC2_128_CBC_EXPORT40_WITH_MD5 */
103 SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5,
104 SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
105 SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_EXP40|SSL_SSLV2,
109 /* RC2_128_CBC_WITH_MD5 */
112 SSL2_TXT_RC2_128_CBC_WITH_MD5,
113 SSL2_CK_RC2_128_CBC_WITH_MD5,
114 SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
118 /* IDEA_128_CBC_WITH_MD5 */
121 SSL2_TXT_IDEA_128_CBC_WITH_MD5,
122 SSL2_CK_IDEA_128_CBC_WITH_MD5,
123 SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_MEDIUM,
127 /* DES_64_CBC_WITH_MD5 */
130 SSL2_TXT_DES_64_CBC_WITH_MD5,
131 SSL2_CK_DES_64_CBC_WITH_MD5,
132 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_LOW,
136 /* DES_192_EDE3_CBC_WITH_MD5 */
139 SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5,
140 SSL2_CK_DES_192_EDE3_CBC_WITH_MD5,
141 SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_NOT_EXP|SSL_SSLV2|SSL_HIGH,
145 /* RC4_64_WITH_MD5 */
149 SSL2_TXT_RC4_64_WITH_MD5,
150 SSL2_CK_RC4_64_WITH_MD5,
151 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2|SSL_LOW,
156 /* NULL SSLeay (testing) */
167 /* end of list :-) */
170 static SSL_METHOD SSLv2_data= {
172 ssl2_new, /* local */
173 ssl2_clear, /* local */
174 ssl2_free, /* local */
175 ssl_undefined_function,
176 ssl_undefined_function,
181 ssl_ok, /* NULL - renegotiate */
182 ssl_ok, /* NULL - check renegotiate */
183 ssl2_ctrl, /* local */
184 ssl2_ctx_ctrl, /* local */
185 ssl2_get_cipher_by_char,
186 ssl2_put_cipher_by_char,
191 ssl2_default_timeout,
192 &ssl3_undef_enc_method,
195 static long ssl2_default_timeout(void)
200 SSL_METHOD *sslv2_base_method(void)
205 int ssl2_num_ciphers(void)
207 return(SSL2_NUM_CIPHERS);
210 SSL_CIPHER *ssl2_get_cipher(unsigned int u)
212 if (u < SSL2_NUM_CIPHERS)
213 return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u]));
218 int ssl2_pending(SSL *s)
220 return(s->s2->ract_data_length);
227 if ((s2=(SSL2_CTX *)Malloc(sizeof(SSL2_CTX))) == NULL) goto err;
228 memset(s2,0,sizeof(SSL2_CTX));
230 if ((s2->rbuf=(unsigned char *)Malloc(
231 SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
232 if ((s2->wbuf=(unsigned char *)Malloc(
233 SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
241 if (s2->wbuf != NULL) Free(s2->wbuf);
242 if (s2->rbuf != NULL) Free(s2->rbuf);
248 void ssl2_free(SSL *s)
256 if (s2->rbuf != NULL) Free(s2->rbuf);
257 if (s2->wbuf != NULL) Free(s2->wbuf);
258 memset(s2,0,sizeof(SSL2_CTX));
263 void ssl2_clear(SSL *s)
266 unsigned char *rbuf,*wbuf;
273 memset(s2,0,sizeof(SSL2_CTX));
279 s->version=SSL2_VERSION;
283 long ssl2_ctrl(SSL *s, int cmd, long larg, char *parg)
289 case SSL_CTRL_GET_SESSION_REUSED:
298 long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
303 /* This function needs to check if the ciphers required are actually
305 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
308 static SSL_CIPHER *sorted[SSL2_NUM_CIPHERS];
309 SSL_CIPHER c,*cp= &c,**cpp;
315 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
317 for (i=0; i<SSL2_NUM_CIPHERS; i++)
318 sorted[i]= &(ssl2_ciphers[i]);
320 qsort( (char *)sorted,
321 SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
322 FP_ICC ssl_cipher_ptr_id_cmp);
324 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
328 id=0x02000000L|((unsigned long)p[0]<<16L)|
329 ((unsigned long)p[1]<<8L)|(unsigned long)p[2];
331 cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
333 SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
334 (int (*)())ssl_cipher_ptr_id_cmp);
335 if ((cpp == NULL) || !(*cpp)->valid)
341 int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
348 if ((l & 0xff000000) != 0x02000000) return(0);
349 p[0]=((unsigned char)(l>>16L))&0xFF;
350 p[1]=((unsigned char)(l>> 8L))&0xFF;
351 p[2]=((unsigned char)(l ))&0xFF;
356 void ssl2_generate_key_material(SSL *s)
363 km=s->s2->key_material;
364 for (i=0; i<s->s2->key_material_length; i+=MD5_DIGEST_LENGTH)
368 MD5_Update(&ctx,s->session->master_key,s->session->master_key_length);
369 MD5_Update(&ctx,(unsigned char *)&c,1);
371 MD5_Update(&ctx,s->s2->challenge,s->s2->challenge_length);
372 MD5_Update(&ctx,s->s2->conn_id,s->s2->conn_id_length);
374 km+=MD5_DIGEST_LENGTH;
378 void ssl2_return_error(SSL *s, int err)
390 void ssl2_write_error(SSL *s)
392 unsigned char buf[3];
395 buf[0]=SSL2_MT_ERROR;
396 buf[1]=(s->error_code>>8)&0xff;
397 buf[2]=(s->error_code)&0xff;
399 /* state=s->rwstate;*/
402 i=ssl2_write(s,&(buf[3-error]),error);
403 /* if (i == error) s->rwstate=state; */
407 else if (i != s->error)
413 int ssl2_shutdown(SSL *s)
415 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);