--- /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