OSX/sec/SOSCircle/SecureObjectSync/SOSInternal.h

   1 /*
   2  * Copyright (c) 2012-2014 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 #ifndef _SOSINTERNAL_H_
  26 #define _SOSINTERNAL_H_
  27
  28 #include <CoreFoundation/CoreFoundation.h>
  29
  30 #include <Security/SecKey.h>
  31
  32 #include <Security/SecureObjectSync/SOSCloudCircle.h>
  33
  34 #include <utilities/SecCFWrappers.h>
  35
  36 #include <corecrypto/ccec.h>
  37
  38 __BEGIN_DECLS
  39
  40 enum {
  41     // Public errors are first (See SOSCloudCircle)
  42
  43     kSOSErrorFirstPrivateError = 1024,
  44
  45     kSOSErrorAllocationFailure  = 1024,
  46     kSOSErrorEncodeFailure      = 1025,
  47     kSOSErrorNameMismatch       = 1026,
  48     kSOSErrorSendFailure        = 1027,
  49     kSOSErrorProcessingFailure  = 1028,
  50     kSOSErrorDecodeFailure      = 1029,
  51
  52     kSOSErrorAlreadyPeer        = 1030,
  53     kSOSErrorNotApplicant       = 1031,
  54     kSOSErrorPeerNotFound       = 1032,
  55
  56     kSOSErrorNoKey              = 1033,
  57     kSOSErrorBadKey             = 1034,
  58     kSOSErrorBadFormat          = 1035,
  59     kSOSErrorNoCircleName       = 1036,
  60     kSOSErrorNoCircle           = 1037,
  61     kSOSErrorBadSignature       = 1038,
  62     kSOSErrorReplay             = 1039,
  63
  64     kSOSErrorUnexpectedType     = 1040,
  65
  66     kSOSErrorUnsupported        = 1041,
  67     kSOSErrorInvalidMessage     = 1042,
  68     kSOSErrorNoRing             = 1043,
  69
  70     kSOSErrorNoiCloudPeer       = 1044,
  71 };
  72
  73 extern CFStringRef kSOSErrorDomain;
  74
  75 // Returns false unless errorCode is 0.
  76 bool SOSErrorCreate(CFIndex errorCode, CFErrorRef *error, CFDictionaryRef formatOptions, CFStringRef descriptionString, ...);
  77
  78 bool SOSCreateError(CFIndex errorCode, CFStringRef descriptionString, CFErrorRef previousError, CFErrorRef *newError);
  79
  80 bool SOSCreateErrorWithFormat(CFIndex errorCode, CFErrorRef previousError, CFErrorRef *newError,
  81                               CFDictionaryRef formatOptions, CFStringRef formatString, ...)
  82                         CF_FORMAT_FUNCTION(5,6);
  83
  84 bool SOSCreateErrorWithFormatAndArguments(CFIndex errorCode, CFErrorRef previousError, CFErrorRef *newError,
  85                                           CFDictionaryRef formatOptions, CFStringRef formatString, va_list args)
  86                                 CF_FORMAT_FUNCTION(5,0);
  87
  88 static inline bool isSOSErrorCoded(CFErrorRef error, CFIndex sosErrorCode) {
  89     return error && CFErrorGetCode(error) == sosErrorCode && CFEqualSafe(CFErrorGetDomain(error), kSOSErrorDomain);
  90 }
  91
  92 //
  93 // Backup Key handling
  94 //
  95 ccec_const_cp_t SOSGetBackupKeyCurveParameters(void);
  96 bool SOSGenerateDeviceBackupFullKey(ccec_full_ctx_t generatedKey, ccec_const_cp_t cp, CFDataRef entropy, CFErrorRef* error);
  97
  98 bool SOSPerformWithDeviceBackupFullKey(ccec_const_cp_t cp, CFDataRef entropy, CFErrorRef *error, void (^operation)(ccec_full_ctx_t fullKey));
  99 CFDataRef SOSCopyDeviceBackupPublicKey(CFDataRef entropy, CFErrorRef *error);
 100
 101 //
 102 // Wrapping and Unwrapping
 103 //
 104
 105 CFMutableDataRef SOSCopyECWrappedData(ccec_pub_ctx *ec_ctx, CFDataRef data, CFErrorRef *error);
 106 bool             SOSPerformWithUnwrappedData(ccec_full_ctx_t ec_ctx, CFDataRef data, CFErrorRef *error,
 107                                              void (^operation)(size_t size, uint8_t *buffer));
 108 CFMutableDataRef SOSCopyECUnwrappedData(ccec_full_ctx_t ec_ctx, CFDataRef data, CFErrorRef *error);
 109 //
 110 // Utility Functions
 111 //
 112 OSStatus GenerateECPair(int keySize, SecKeyRef* public, SecKeyRef *full);
 113 OSStatus GeneratePermanentECPair(int keySize, SecKeyRef* public, SecKeyRef *full);
 114
 115 CFStringRef SOSItemsChangedCopyDescription(CFDictionaryRef changes, bool is_sender);
 116
 117 CFStringRef SOSCopyIDOfKey(SecKeyRef key, CFErrorRef *error);
 118 CFStringRef SOSCopyIDOfKeyWithLength(SecKeyRef key, CFIndex len, CFErrorRef *error);
 119
 120 //
 121 // Der encoding accumulation
 122 //
 123 static inline bool accumulate_size(size_t *accumulator, size_t size) {
 124     *accumulator += size;
 125     return size != 0;
 126 }
 127
 128 // Used for simple timestamping that's DERable (not durable)
 129 CFDataRef SOSDateCreate(void);
 130
 131 CFDataRef CFDataCreateWithDER(CFAllocatorRef allocator, CFIndex size, uint8_t*(^operation)(size_t size, uint8_t *buffer));
 132
 133
 134 __END_DECLS
 135
 136 #endif