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
51const 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
85size_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
117uint8_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}
148