[thirdparty/openssl.git] / ssl / s23_lib.c

/* ssl/s23_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include "objects.h"
#include "ssl_locl.h"

#ifndef NOPROTO
static int ssl23_num_ciphers(void );
static SSL_CIPHER *ssl23_get_cipher(unsigned int u);
static int ssl23_read(SSL *s, char *buf, int len);
static int ssl23_write(SSL *s, char *buf, int len);
static long ssl23_default_timeout(void );
static int ssl23_put_cipher_by_char(SSL_CIPHER *c, unsigned char *p);
static SSL_CIPHER *ssl23_get_cipher_by_char(unsigned char *p);
#else
static int ssl23_num_ciphers();
static SSL_CIPHER *ssl23_get_cipher();
static int ssl23_read();
static int ssl23_write();
static long ssl23_default_timeout();
static int ssl23_put_cipher_by_char();
static SSL_CIPHER *ssl23_get_cipher_by_char();
#endif

char *SSL23_version_str="SSLv2/3 compatablity part of SSLeay 0.9.1a 06-Jul-1998";

static SSL_METHOD SSLv23_data= {
	TLS1_VERSION,
	tls1_new,
	tls1_clear,
	tls1_free,
	ssl_undefined_function,
	ssl_undefined_function,
	ssl23_read,
	ssl_undefined_function,
	ssl23_write,
	ssl_undefined_function,
	ssl_undefined_function,
	ssl_ok,
	ssl3_ctrl,
	ssl3_ctx_ctrl,
	ssl23_get_cipher_by_char,
	ssl23_put_cipher_by_char,
	ssl_undefined_function,
	ssl23_num_ciphers,
	ssl23_get_cipher,
	ssl_bad_method,
	ssl23_default_timeout,
	&ssl3_undef_enc_method,
	};

static long ssl23_default_timeout()
	{
	return(300);
	}

SSL_METHOD *sslv23_base_method()
	{
	return(&SSLv23_data);
	}

static int ssl23_num_ciphers()
	{
	return(ssl3_num_ciphers()+ssl2_num_ciphers());
	}

static SSL_CIPHER *ssl23_get_cipher(u)
unsigned int u;
	{
	unsigned int uu=ssl3_num_ciphers();

	if (u < uu)
		return(ssl3_get_cipher(u));
	else
		return(ssl2_get_cipher(u-uu));
	}

/* This function needs to check if the ciphers required are actually
 * available */
static SSL_CIPHER *ssl23_get_cipher_by_char(p)
unsigned char *p;
	{
	SSL_CIPHER c,*cp;
	unsigned long id;
	int n;

	n=ssl3_num_ciphers();
	id=0x03000000|((unsigned long)p[0]<<16L)|
		((unsigned long)p[1]<<8L)|(unsigned long)p[2];
	c.id=id;
	cp=ssl3_get_cipher_by_char(p);
	if (cp == NULL)
		cp=ssl2_get_cipher_by_char(p);
	return(cp);
	}

static int ssl23_put_cipher_by_char(c,p)
SSL_CIPHER *c;
unsigned char *p;
	{
	long l;

	/* We can write SSLv2 and SSLv3 ciphers */
	if (p != NULL)
		{
		l=c->id;
		p[0]=((unsigned char)(l>>16L))&0xFF;
		p[1]=((unsigned char)(l>> 8L))&0xFF;
		p[2]=((unsigned char)(l     ))&0xFF;
		}
	return(3);
	}

static int ssl23_read(s,buf,len)
SSL *s;
char *buf;
int len;
	{
	int n;

#if 0
	if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
		{
		s->rwstate=SSL_NOTHING;
		return(0);
		}
#endif
	clear_sys_error();
	if (SSL_in_init(s) && (!s->in_handshake))
		{
		n=s->handshake_func(s);
		if (n < 0) return(n);
		if (n == 0)
			{
			SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
			return(-1);
			}
		return(SSL_read(s,buf,len));
		}
	else
		{
		ssl_undefined_function(s);
		return(-1);
		}
	}

static int ssl23_write(s,buf,len)
SSL *s;
char *buf;
int len;
	{
	int n;

#if 0
	if (s->shutdown & SSL_SENT_SHUTDOWN)
		{
		s->rwstate=SSL_NOTHING;
		return(0);
		}
#endif
	clear_sys_error();
	if (SSL_in_init(s) && (!s->in_handshake))
		{
		n=s->handshake_func(s);
		if (n < 0) return(n);
		if (n == 0)
			{
			SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
			return(-1);
			}
		return(SSL_write(s,buf,len));
		}
	else
		{
		ssl_undefined_function(s);
		return(-1);
		}
	}
Commit	Line	Data
d02b48c6	1	/* ssl/s23_lib.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	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	#include <stdio.h>
	60	#include "objects.h"
	61	#include "ssl_locl.h"
	62
	63	#ifndef NOPROTO
	64	static int ssl23_num_ciphers(void );
	65	static SSL_CIPHER *ssl23_get_cipher(unsigned int u);
	66	static int ssl23_read(SSL s, char buf, int len);
67	static int ssl23_write(SSL s, char buf, int len);
68	static long ssl23_default_timeout(void );
69	static int ssl23_put_cipher_by_char(SSL_CIPHER c, unsigned char p);
70	static SSL_CIPHER ssl23_get_cipher_by_char(unsigned char p);
71	#else
72	static int ssl23_num_ciphers();
73	static SSL_CIPHER *ssl23_get_cipher();
74	static int ssl23_read();
75	static int ssl23_write();
76	static long ssl23_default_timeout();
77	static int ssl23_put_cipher_by_char();
78	static SSL_CIPHER *ssl23_get_cipher_by_char();
79	#endif
80
dfeab068	81	char *SSL23_version_str="SSLv2/3 compatablity part of SSLeay 0.9.1a 06-Jul-1998";
d02b48c6 RE	82
d02b48c6 RE	83	static SSL_METHOD SSLv23_data= {
58964a49 RE	84	TLS1_VERSION,
	85	tls1_new,
	86	tls1_clear,
	87	tls1_free,
d02b48c6 RE	88	ssl_undefined_function,
	89	ssl_undefined_function,
	90	ssl23_read,
	91	ssl_undefined_function,
	92	ssl23_write,
	93	ssl_undefined_function,
	94	ssl_undefined_function,
dfeab068	95	ssl_ok,
d02b48c6 RE	96	ssl3_ctrl,
	97	ssl3_ctx_ctrl,
	98	ssl23_get_cipher_by_char,
	99	ssl23_put_cipher_by_char,
	100	ssl_undefined_function,
	101	ssl23_num_ciphers,
	102	ssl23_get_cipher,
	103	ssl_bad_method,
	104	ssl23_default_timeout,
58964a49	105	&ssl3_undef_enc_method,
d02b48c6 RE	106	};
	107
	108	static long ssl23_default_timeout()
	109	{
	110	return(300);
	111	}
	112
	113	SSL_METHOD *sslv23_base_method()
	114	{
	115	return(&SSLv23_data);
	116	}
	117
	118	static int ssl23_num_ciphers()
	119	{
	120	return(ssl3_num_ciphers()+ssl2_num_ciphers());
	121	}
	122
	123	static SSL_CIPHER *ssl23_get_cipher(u)
	124	unsigned int u;
	125	{
	126	unsigned int uu=ssl3_num_ciphers();
	127
	128	if (u < uu)
	129	return(ssl3_get_cipher(u));
	130	else
	131	return(ssl2_get_cipher(u-uu));
	132	}
	133
	134	/* This function needs to check if the ciphers required are actually
	135	* available */
	136	static SSL_CIPHER *ssl23_get_cipher_by_char(p)
	137	unsigned char *p;
	138	{
	139	SSL_CIPHER c,*cp;
	140	unsigned long id;
	141	int n;
	142
	143	n=ssl3_num_ciphers();
	144	id=0x03000000\|((unsigned long)p[0]<<16L)\|
	145	((unsigned long)p[1]<<8L)\|(unsigned long)p[2];
	146	c.id=id;
	147	cp=ssl3_get_cipher_by_char(p);
	148	if (cp == NULL)
	149	cp=ssl2_get_cipher_by_char(p);
	150	return(cp);
	151	}
	152
	153	static int ssl23_put_cipher_by_char(c,p)
	154	SSL_CIPHER *c;
	155	unsigned char *p;
	156	{
	157	long l;
	158
	159	/* We can write SSLv2 and SSLv3 ciphers */
	160	if (p != NULL)
	161	{
	162	l=c->id;
	163	p[0]=((unsigned char)(l>>16L))&0xFF;
	164	p[1]=((unsigned char)(l>> 8L))&0xFF;
	165	p[2]=((unsigned char)(l ))&0xFF;
	166	}
	167	return(3);
	168	}
	169
170	static int ssl23_read(s,buf,len)
171	SSL *s;
172	char *buf;
173	int len;
174	{
175	int n;
176
177	#if 0
178	if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
179	{
180	s->rwstate=SSL_NOTHING;
181	return(0);
182	}
183	#endif
58964a49	184	clear_sys_error();
d02b48c6 RE	185	if (SSL_in_init(s) && (!s->in_handshake))
	186	{
	187	n=s->handshake_func(s);
	188	if (n < 0) return(n);
	189	if (n == 0)
	190	{
	191	SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE);
	192	return(-1);
	193	}
	194	return(SSL_read(s,buf,len));
	195	}
	196	else
	197	{
	198	ssl_undefined_function(s);
	199	return(-1);
	200	}
	201	}
	202
	203	static int ssl23_write(s,buf,len)
	204	SSL *s;
	205	char *buf;
	206	int len;
	207	{
	208	int n;
	209
	210	#if 0
	211	if (s->shutdown & SSL_SENT_SHUTDOWN)
	212	{
	213	s->rwstate=SSL_NOTHING;
	214	return(0);
	215	}
	216	#endif
58964a49	217	clear_sys_error();
d02b48c6 RE	218	if (SSL_in_init(s) && (!s->in_handshake))
	219	{
	220	n=s->handshake_func(s);
	221	if (n < 0) return(n);
	222	if (n == 0)
	223	{
	224	SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE);
	225	return(-1);
	226	}
	227	return(SSL_write(s,buf,len));
	228	}
	229	else
	230	{
	231	ssl_undefined_function(s);
	232	return(-1);
	233	}
	234	}