1 files changed, 478 insertions, 0 deletions
diff --git a/ssl/s2_lib.c b/ssl/s2_lib.c
new file mode 100644
index 000000000000..10751b22baf8
--- /dev/null
+++ b/ssl/s2_lib.c
@@ -0,0 +1,478 @@
+/* ssl/s2_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 "ssl_locl.h"
+#ifndef OPENSSL_NO_SSL2
+#include <stdio.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/md5.h>
+
+const char ssl2_version_str[]="SSLv2" OPENSSL_VERSION_PTEXT;
+
+#define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
+
+/* list of available SSLv2 ciphers (sorted by id) */
+OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
+/* NULL_WITH_MD5 v3 */
+#if 0
+	{
+	1,
+	SSL2_TXT_NULL_WITH_MD5,
+	SSL2_CK_NULL_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_SSLV2,
+	SSL_EXPORT|SSL_EXP40|SSL_STRONG_NONE,
+	0,
+	0,
+	0,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+#endif
+/* RC4_128_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_RC4_128_WITH_MD5,
+	SSL2_CK_RC4_128_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_MEDIUM,
+	0,
+	128,
+	128,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* RC4_128_EXPORT40_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_RC4_128_EXPORT40_WITH_MD5,
+	SSL2_CK_RC4_128_EXPORT40_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+	SSL_EXPORT|SSL_EXP40,
+	SSL2_CF_5_BYTE_ENC,
+	40,
+	128,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* RC2_128_CBC_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_RC2_128_CBC_WITH_MD5,
+	SSL2_CK_RC2_128_CBC_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_MEDIUM,
+	0,
+	128,
+	128,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* RC2_128_CBC_EXPORT40_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5,
+	SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
+	SSL_EXPORT|SSL_EXP40,
+	SSL2_CF_5_BYTE_ENC,
+	40,
+	128,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* IDEA_128_CBC_WITH_MD5 */
+#ifndef OPENSSL_NO_IDEA
+	{
+	1,
+	SSL2_TXT_IDEA_128_CBC_WITH_MD5,
+	SSL2_CK_IDEA_128_CBC_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_MEDIUM,
+	0,
+	128,
+	128,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+#endif
+/* DES_64_CBC_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_DES_64_CBC_WITH_MD5,
+	SSL2_CK_DES_64_CBC_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_LOW,
+	0,
+	56,
+	56,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* DES_192_EDE3_CBC_WITH_MD5 */
+	{
+	1,
+	SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5,
+	SSL2_CK_DES_192_EDE3_CBC_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_HIGH,
+	0,
+	168,
+	168,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+/* RC4_64_WITH_MD5 */
+#if 0
+	{
+	1,
+	SSL2_TXT_RC4_64_WITH_MD5,
+	SSL2_CK_RC4_64_WITH_MD5,
+	SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
+	SSL_NOT_EXP|SSL_LOW,
+	SSL2_CF_8_BYTE_ENC,
+	64,
+	64,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+#endif
+/* NULL SSLeay (testing) */
+#if 0
+	{	
+	0,
+	SSL2_TXT_NULL,
+	SSL2_CK_NULL,
+	0,
+	SSL_STRONG_NONE,
+	0,
+	0,
+	0,
+	SSL_ALL_CIPHERS,
+	SSL_ALL_STRENGTHS,
+	},
+#endif
+
+/* end of list :-) */
+	};
+
+long ssl2_default_timeout(void)
+	{
+	return(300);
+	}
+
+IMPLEMENT_ssl2_meth_func(sslv2_base_method,
+			ssl_undefined_function,
+			ssl_undefined_function,
+			ssl_bad_method)
+
+int ssl2_num_ciphers(void)
+	{
+	return(SSL2_NUM_CIPHERS);
+	}
+
+SSL_CIPHER *ssl2_get_cipher(unsigned int u)
+	{
+	if (u < SSL2_NUM_CIPHERS)
+		return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u]));
+	else
+		return(NULL);
+	}
+
+int ssl2_pending(const SSL *s)
+	{
+	return SSL_in_init(s) ? 0 : s->s2->ract_data_length;
+	}
+
+int ssl2_new(SSL *s)
+	{
+	SSL2_STATE *s2;
+
+	if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err;
+	memset(s2,0,sizeof *s2);
+
+#if SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER + 3 > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2
+#  error "assertion failed"
+#endif
+
+	if ((s2->rbuf=OPENSSL_malloc(
+		SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
+	/* wbuf needs one byte more because when using two-byte headers,
+	 * we leave the first byte unused in do_ssl_write (s2_pkt.c) */
+	if ((s2->wbuf=OPENSSL_malloc(
+		SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+3)) == NULL) goto err;
+	s->s2=s2;
+
+	ssl2_clear(s);
+	return(1);
+err:
+	if (s2 != NULL)
+		{
+		if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+		if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+		OPENSSL_free(s2);
+		}
+	return(0);
+	}
+
+void ssl2_free(SSL *s)
+	{
+	SSL2_STATE *s2;
+
+	if(s == NULL)
+	    return;
+
+	s2=s->s2;
+	if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
+	if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
+	OPENSSL_cleanse(s2,sizeof *s2);
+	OPENSSL_free(s2);
+	s->s2=NULL;
+	}
+
+void ssl2_clear(SSL *s)
+	{
+	SSL2_STATE *s2;
+	unsigned char *rbuf,*wbuf;
+
+	s2=s->s2;
+
+	rbuf=s2->rbuf;
+	wbuf=s2->wbuf;
+
+	memset(s2,0,sizeof *s2);
+
+	s2->rbuf=rbuf;
+	s2->wbuf=wbuf;
+	s2->clear_text=1;
+	s->packet=s2->rbuf;
+	s->version=SSL2_VERSION;
+	s->packet_length=0;
+	}
+
+long ssl2_ctrl(SSL *s, int cmd, long larg, void *parg)
+	{
+	int ret=0;
+
+	switch(cmd)
+		{
+	case SSL_CTRL_GET_SESSION_REUSED:
+		ret=s->hit;
+		break;
+	default:
+		break;
+		}
+	return(ret);
+	}
+
+long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
+	{
+	return(0);
+	}
+
+long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
+	{
+	return(0);
+	}
+
+long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
+	{
+	return(0);
+	}
+
+/* This function needs to check if the ciphers required are actually
+ * available */
+SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
+	{
+	SSL_CIPHER c,*cp;
+	unsigned long id;
+
+	id=0x02000000L|((unsigned long)p[0]<<16L)|
+		((unsigned long)p[1]<<8L)|(unsigned long)p[2];
+	c.id=id;
+	cp = (SSL_CIPHER *)OBJ_bsearch((char *)&c,
+		(char *)ssl2_ciphers,
+		SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER),
+		FP_ICC ssl_cipher_id_cmp);
+	if ((cp == NULL) || (cp->valid == 0))
+		return NULL;
+	else
+		return cp;
+	}
+
+int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
+	{
+	long l;
+
+	if (p != NULL)
+		{
+		l=c->id;
+		if ((l & 0xff000000) != 0x02000000) return(0);
+		p[0]=((unsigned char)(l>>16L))&0xFF;
+		p[1]=((unsigned char)(l>> 8L))&0xFF;
+		p[2]=((unsigned char)(l     ))&0xFF;
+		}
+	return(3);
+	}
+
+int ssl2_generate_key_material(SSL *s)
+	{
+	unsigned int i;
+	EVP_MD_CTX ctx;
+	unsigned char *km;
+	unsigned char c='0';
+	const EVP_MD *md5;
+
+	md5 = EVP_md5();
+
+#ifdef CHARSET_EBCDIC
+	c = os_toascii['0']; /* Must be an ASCII '0', not EBCDIC '0',
+				see SSLv2 docu */
+#endif
+	EVP_MD_CTX_init(&ctx);
+	km=s->s2->key_material;
+
+ 	if (s->session->master_key_length < 0 ||
+			s->session->master_key_length > (int)sizeof(s->session->master_key))
+ 		{
+ 		SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR);
+ 		return 0;
+ 		}
+
+	for (i=0; i<s->s2->key_material_length; i += EVP_MD_size(md5))
+		{
+		if (((km - s->s2->key_material) + EVP_MD_size(md5)) >
+				(int)sizeof(s->s2->key_material))
+			{
+			/* EVP_DigestFinal_ex() below would write beyond buffer */
+			SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR);
+			return 0;
+			}
+
+		EVP_DigestInit_ex(&ctx, md5, NULL);
+
+		OPENSSL_assert(s->session->master_key_length >= 0
+		    && s->session->master_key_length
+		    < (int)sizeof(s->session->master_key));
+		EVP_DigestUpdate(&ctx,s->session->master_key,s->session->master_key_length);
+		EVP_DigestUpdate(&ctx,&c,1);
+		c++;
+		EVP_DigestUpdate(&ctx,s->s2->challenge,s->s2->challenge_length);
+		EVP_DigestUpdate(&ctx,s->s2->conn_id,s->s2->conn_id_length);
+		EVP_DigestFinal_ex(&ctx,km,NULL);
+		km += EVP_MD_size(md5);
+		}
+
+	EVP_MD_CTX_cleanup(&ctx);
+	return 1;
+	}
+
+void ssl2_return_error(SSL *s, int err)
+	{
+	if (!s->error)
+		{
+		s->error=3;
+		s->error_code=err;
+
+		ssl2_write_error(s);
+		}
+	}
+
+
+void ssl2_write_error(SSL *s)
+	{
+	unsigned char buf[3];
+	int i,error;
+
+	buf[0]=SSL2_MT_ERROR;
+	buf[1]=(s->error_code>>8)&0xff;
+	buf[2]=(s->error_code)&0xff;
+
+/*	state=s->rwstate;*/
+
+	error=s->error; /* number of bytes left to write */
+	s->error=0;
+	OPENSSL_assert(error >= 0 && error <= (int)sizeof(buf));
+	i=ssl2_write(s,&(buf[3-error]),error);
+
+/*	if (i == error) s->rwstate=state; */
+
+	if (i < 0)
+		s->error=error;
+	else
+		{
+		s->error=error-i;
+
+		if (s->error == 0)
+			if (s->msg_callback)
+				s->msg_callback(1, s->version, 0, buf, 3, s, s->msg_callback_arg); /* ERROR */
+		}
+	}
+
+int ssl2_shutdown(SSL *s)
+	{
+	s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
+	return(1);
+	}
+#else /* !OPENSSL_NO_SSL2 */
+
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
+
+#endif