libsecurity_ssl/lib/sslRecord.h

   1 /*
   2  * Copyright (c) 2000-2001,2005-2007,2010-2012 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * sslRecord.h - SSL Record Layer
  26  */
  27
  28 #ifndef _SSLRECORD_H_
  29 #define _SSLRECORD_H_ 1
  30
  31 #include "sslPriv.h"
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 enum
  38 {   SSL_RecordTypeV2_0,
  39     SSL_RecordTypeV3_Smallest = 20,
  40     SSL_RecordTypeChangeCipher = 20,
  41     SSL_RecordTypeAlert = 21,
  42     SSL_RecordTypeHandshake = 22,
  43     SSL_RecordTypeAppData = 23,
  44     SSL_RecordTypeV3_Largest = 23
  45 };
  46
  47 typedef struct
  48 {   UInt8                   contentType;
  49     SSLProtocolVersion      protocolVersion;
  50     SSLBuffer               contents;
  51 } SSLRecord;
  52
  53 /*
  54  * Slightly smaller that 16384 to make room for a MAC in an SSL 2.0
  55  * 3-byte header record
  56  */
  57 #define MAX_RECORD_LENGTH   16300
  58
  59 #define DEFAULT_BUFFER_SIZE 4096
  60
  61 OSStatus SSLReadRecord(
  62         SSLRecord       *rec,
  63         SSLContext      *ctx);
  64
  65 OSStatus SSLVerifyMac(
  66         UInt8           type,
  67         SSLBuffer       *data,
  68         UInt8           *compareMAC,
  69         SSLContext      *ctx);
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 #endif /* _SSLRECORD_H_ */