Security/utilities/src/der_plist.c

   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 #include <stdio.h>
  26
  27 #include "utilities/SecCFRelease.h"
  28 #include "utilities/der_plist.h"
  29 #include "utilities/der_plist_internal.h"
  30
  31 #include <corecrypto/ccder.h>
  32 #include <CoreFoundation/CoreFoundation.h>
  33
  34 //
  35 // der..CFPropertyList
  36 //
  37 // We support:
  38 //
  39 //   CFBoolean
  40 //   CFData
  41 //   CFDate
  42 //   CFString
  43 //   CFNumber
  44 //   CFNull
  45 //
  46 //   CFArray
  47 //   CFDictionary
  48 //
  49 //
  50
  51 const uint8_t* der_decode_plist(CFAllocatorRef allocator, CFOptionFlags mutability,
  52                                 CFPropertyListRef* pl, CFErrorRef *error,
  53                                 const uint8_t* der, const uint8_t *der_end)
  54 {    if (NULL == der)
  55     return NULL;
  56
  57     ccder_tag tag;
  58     if (NULL == ccder_decode_tag(&tag, der, der_end))
  59         return NULL;
  60
  61     switch (tag) {
  62                 case CCDER_NULL:
  63                         return der_decode_null(allocator, mutability, (CFNullRef*)pl, error, der, der_end);
  64         case CCDER_BOOLEAN:
  65             return der_decode_boolean(allocator, mutability, (CFBooleanRef*)pl, error, der, der_end);
  66         case CCDER_OCTET_STRING:
  67             return der_decode_data(allocator, mutability, (CFDataRef*)pl, error, der, der_end);
  68         case CCDER_GENERALIZED_TIME:
  69             return der_decode_date(allocator, mutability, (CFDateRef*)pl, error, der, der_end);
  70         case CCDER_CONSTRUCTED_SEQUENCE:
  71             return der_decode_array(allocator, mutability, (CFArrayRef*)pl, error, der, der_end);
  72         case CCDER_UTF8_STRING:
  73             return der_decode_string(allocator, mutability, (CFStringRef*)pl, error, der, der_end);
  74         case CCDER_INTEGER:
  75             return der_decode_number(allocator, mutability, (CFNumberRef*)pl, error, der, der_end);
  76         case CCDER_CONSTRUCTED_SET:
  77             return der_decode_dictionary(allocator, mutability, (CFDictionaryRef*)pl, error, der, der_end);
  78         default:
  79             SecCFDERCreateError(kSecDERErrorUnsupportedDERType, CFSTR("Unsupported DER Type"), NULL, error);
  80             return NULL;
  81     }
  82 }
  83
  84
  85 size_t der_sizeof_plist(CFPropertyListRef pl, CFErrorRef *error)
  86 {
  87     if (!pl) {
  88         SecCFDERCreateError(kSecDERErrorUnsupportedCFObject, CFSTR("Null CFType"), NULL, error);
  89         return 0;
  90     }
  91
  92     CFTypeID  dataType = CFGetTypeID(pl);
  93
  94     if (CFArrayGetTypeID() == dataType)
  95         return der_sizeof_array((CFArrayRef) pl, error);
  96     else if (CFBooleanGetTypeID() == dataType)
  97         return der_sizeof_boolean((CFBooleanRef) pl, error);
  98     else if (CFDataGetTypeID() == dataType)
  99         return der_sizeof_data((CFDataRef) pl, error);
 100     else if (CFDateGetTypeID() == dataType)
 101         return der_sizeof_date((CFDateRef) pl, error);
 102     else if (CFDictionaryGetTypeID() == dataType)
 103         return der_sizeof_dictionary((CFDictionaryRef) pl, error);
 104     else if (CFStringGetTypeID() == dataType)
 105         return der_sizeof_string((CFStringRef) pl, error);
 106     else if (CFNumberGetTypeID() == dataType)
 107         return der_sizeof_number((CFNumberRef) pl, error);
 108         if (CFNullGetTypeID() == dataType)
 109                 return der_sizeof_null((CFNullRef) pl, error);
 110         else {
 111         SecCFDERCreateError(kSecDERErrorUnsupportedCFObject, CFSTR("Unsupported CFType"), NULL, error);
 112         return 0;
 113     }
 114 }
 115
 116
 117 uint8_t* der_encode_plist(CFPropertyListRef pl, CFErrorRef *error,
 118                           const uint8_t *der, uint8_t *der_end)
 119 {
 120     if (!pl) {
 121         SecCFDERCreateError(kSecDERErrorUnsupportedCFObject, CFSTR("Null CFType"), NULL, error);
 122         return NULL;
 123     }
 124
 125     CFTypeID  dataType = CFGetTypeID(pl);
 126
 127     if (CFArrayGetTypeID() == dataType)
 128         return der_encode_array((CFArrayRef) pl, error, der, der_end);
 129     else if (CFBooleanGetTypeID() == dataType)
 130         return der_encode_boolean((CFBooleanRef) pl, error, der, der_end);
 131     else if (CFDataGetTypeID() == dataType)
 132         return der_encode_data((CFDataRef) pl, error, der, der_end);
 133     else if (CFDateGetTypeID() == dataType)
 134         return der_encode_date((CFDateRef) pl, error, der, der_end);
 135     else if (CFDictionaryGetTypeID() == dataType)
 136         return der_encode_dictionary((CFDictionaryRef) pl, error, der, der_end);
 137     else if (CFStringGetTypeID() == dataType)
 138         return der_encode_string((CFStringRef) pl, error, der, der_end);
 139     else if (CFNumberGetTypeID() == dataType)
 140         return der_encode_number((CFNumberRef) pl, error, der, der_end);
 141         else if (CFNullGetTypeID() == dataType)
 142                 return der_encode_null((CFNullRef) pl, error, der, der_end);
 143     else {
 144         SecCFDERCreateError(kSecDERErrorUnsupportedCFObject, CFSTR("Unsupported CFType"), NULL, error);
 145         return NULL;
 146     }
 147 }