+++ /dev/null
-/* 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.]
- */
-/* ====================================================================
- * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#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 const SSL_CIPHER ssl2_ciphers[]={
-#if 0
-/* NULL_WITH_MD5 v3 */
- {
- 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,
- },
-#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,
- },
-
-/* 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,
- },
-
-/* 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,
- },
-
-/* 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,
- },
-
-#ifndef OPENSSL_NO_IDEA
-/* IDEA_128_CBC_WITH_MD5 */
- {
- 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,
- },
-#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,
- },
-
-/* 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,
- 112,
- 168,
- },
-
-#if 0
-/* RC4_64_WITH_MD5 */
- {
- 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,
- },
-#endif
-
-#if 0
-/* NULL SSLeay (testing) */
- {
- 0,
- SSL2_TXT_NULL,
- SSL2_CK_NULL,
- 0,
- 0,
- 0,
- 0,
- SSL_SSLV2,
- SSL_STRONG_NONE,
- 0,
- 0,
- 0,
- },
-#endif
-
-/* end of list :-) */
- };
-
-long ssl2_default_timeout(void)
- {
- return(300);
- }
-
-int ssl2_num_ciphers(void)
- {
- return(SSL2_NUM_CIPHERS);
- }
-
-const 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;
- case SSL_CTRL_CHECK_PROTO_VERSION:
- return ssl3_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, larg, parg);
- 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 */
-const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
- {
- SSL_CIPHER c;
- const SSL_CIPHER *cp;
- unsigned long id;
-
- id=0x02000000L|((unsigned long)p[0]<<16L)|
- ((unsigned long)p[1]<<8L)|(unsigned long)p[2];
- c.id=id;
- cp = OBJ_bsearch_ssl_cipher_id(&c, ssl2_ciphers, SSL2_NUM_CIPHERS);
- 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 && l != SSL3_CK_FALLBACK_SCSV) 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;
- int md_size;
-
- 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;
- }
- md_size = EVP_MD_size(md5);
- if (md_size < 0)
- return 0;
- for (i=0; i<s->s2->key_material_length; i += md_size)
- {
- if (((km - s->s2->key_material) + md_size) >
- (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 += md_size;
- }
-
- 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
projects / cassiopeia.git / blobdiff