1  /*
 2   * Copyright (c) 2006,2011-2014 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  // sigblob - signature (Super)Blob types
26  //
27  #include "sigblob.h"
28  #include "CSCommon.h"
29  
30  
31  namespace Security {
32  namespace CodeSigning {
33  
34  
35  CFDataRef EmbeddedSignatureBlob::component(CodeDirectory::SpecialSlot slot) const
36  {
37  	const BlobCore *blob = this->find(slot);
38  	
39  	if (blob) {
40  		return blobData(slot, blob);
41  	}
42  	return NULL;
43  }
44  	
45  CFDataRef EmbeddedSignatureBlob::blobData(CodeDirectory::SpecialSlot slot, BlobCore const *blob)
46  {
47  	if (CodeDirectory::slotAttributes(slot) & cdComponentIsBlob) {
48  		return makeCFData(*blob);	// is a native Blob
49  	} else if (const BlobWrapper *wrap = BlobWrapper::specific(blob)) {
50  		return makeCFData(*wrap);
51  	} else {
52  		MacOSError::throwMe(errSecCSSignatureInvalid);
53  	}
54  }
55  
56  
57  void EmbeddedSignatureBlob::Maker::component(CodeDirectory::SpecialSlot slot, CFDataRef data)
58  {
59  	if (CodeDirectory::slotAttributes(slot) & cdComponentIsBlob)
60  		add(slot, reinterpret_cast<const BlobCore *>(CFDataGetBytePtr(data))->clone());
61  	else
62  		add(slot, BlobWrapper::alloc(CFDataGetBytePtr(data), CFDataGetLength(data)));
63  }
64  
65  
66  CFDictionaryRef EntitlementBlob::entitlements() const
67  {
68  	return makeCFDictionaryFrom(this->at<const UInt8 *>(sizeof(EntitlementBlob)),
69  		this->length() - sizeof(EntitlementBlob));
70  }
71  
72  EntitlementDERBlob *EntitlementDERBlob::alloc(size_t length) {
73  	size_t blobLength = length + sizeof(BlobCore);
74  	if (blobLength < length) {
75  		// overflow
76  		return NULL;
77  	}
78  
79  	EntitlementDERBlob *b = (EntitlementDERBlob *)malloc(blobLength);
80  
81  	if (b != NULL) {
82  		b->BlobCore::initialize(kSecCodeMagicEntitlementDER, blobLength);
83  	}
84  
85  	return b;
86  }
87  
88  } // end namespace CodeSigning
89  } // end namespace Security