Fix bogus warnings

[openssl.git] / crypto / evp / e_rc4_hmac_md5.c

diff --git a/crypto/evp/e_rc4_hmac_md5.c b/crypto/evp/e_rc4_hmac_md5.c
index 1ba690da11c48c00d6b187ddb252254ec5c0d3ac..832daef1789cbdd6cabb337c716d8736bc87f1ca 100644 (file)
--- a/crypto/evp/e_rc4_hmac_md5.c
+++ b/crypto/evp/e_rc4_hmac_md5.c
@@ -1,50 +1,10 @@
-/* ====================================================================
- * Copyright (c) 2011 The OpenSSL Project.  All rights reserved.
+/*
+ * Copyright 2011-2016 The OpenSSL Project Authors. 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
- *    licensing@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.
- * ====================================================================
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
 #include <openssl/opensslconf.h>
@@ -54,10 +14,12 @@
 
 #if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_MD5)
 
+# include <openssl/crypto.h>
 # include <openssl/evp.h>
 # include <openssl/objects.h>
 # include <openssl/rc4.h>
 # include <openssl/md5.h>
+# include "internal/evp_int.h"
 
 # ifndef EVP_CIPH_FLAG_AEAD_CIPHER
 #  define EVP_CIPH_FLAG_AEAD_CIPHER       0x200000
@@ -79,7 +41,7 @@ typedef struct {
 void rc4_md5_enc(RC4_KEY *key, const void *in0, void *out,
                  MD5_CTX *ctx, const void *inp, size_t blocks);
 
-# define data(ctx) ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data)
+# define data(ctx) ((EVP_RC4_HMAC_MD5 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
 
 static int rc4_hmac_md5_init_key(EVP_CIPHER_CTX *ctx,
                                  const unsigned char *inkey,
@@ -100,8 +62,7 @@ static int rc4_hmac_md5_init_key(EVP_CIPHER_CTX *ctx,
 
 # if     !defined(OPENSSL_NO_ASM) &&     ( \
         defined(__x86_64)       || defined(__x86_64__)  || \
-        defined(_M_AMD64)       || defined(_M_X64)      || \
-        defined(__INTEL__)              )
+        defined(_M_AMD64)       || defined(_M_X64)      )
 #  define STITCHED_CALL
 # endif
 
@@ -126,7 +87,7 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
     if (plen != NO_PAYLOAD_LENGTH && len != (plen + MD5_DIGEST_LENGTH))
         return 0;
 
-    if (ctx->encrypt) {
+    if (EVP_CIPHER_CTX_encrypting(ctx)) {
         if (plen == NO_PAYLOAD_LENGTH)
             plen = len;
 # if defined(STITCHED_CALL)
@@ -209,7 +170,7 @@ static int rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
             MD5_Update(&key->md, mac, MD5_DIGEST_LENGTH);
             MD5_Final(mac, &key->md);
 
-            if (memcmp(out + plen, mac, MD5_DIGEST_LENGTH))
+            if (CRYPTO_memcmp(out + plen, mac, MD5_DIGEST_LENGTH))
                 return 0;
         } else {
             MD5_Update(&key->md, out + md5_off, len - md5_off);
@@ -252,6 +213,8 @@ static int rc4_hmac_md5_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
             MD5_Init(&key->tail);
             MD5_Update(&key->tail, hmac_key, sizeof(hmac_key));
 
+            OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
+
             return 1;
         }
     case EVP_CTRL_AEAD_TLS1_AAD:
@@ -264,7 +227,7 @@ static int rc4_hmac_md5_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
 
             len = p[arg - 2] << 8 | p[arg - 1];
 
-            if (!ctx->encrypt) {
+            if (!EVP_CIPHER_CTX_encrypting(ctx)) {
                 len -= MD5_DIGEST_LENGTH;
                 p[arg - 2] = len >> 8;
                 p[arg - 1] = len;