1  /*
 2   * Copyright (c) 2004,2011,2014 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  //
26  // SDCSPDLSession.cpp - Security Server CSP/DL session.
27  //
28  #include "SDCSPDLSession.h"
29  
30  #include "SDCSPDLPlugin.h"
31  #include "SDKey.h"
32  
33  using namespace SecurityServer;
34  
35  //
36  // SDCSPDLSession -- Security Server CSP session
37  //
38  SDCSPDLSession::SDCSPDLSession()
39  {
40  }
41  
42  
43  //
44  // Reference Key management
45  //
46  void
47  SDCSPDLSession::makeReferenceKey(SDCSPSession &session, KeyHandle inKeyHandle,
48  								 CssmKey &outKey, CSSM_DB_HANDLE inDBHandle,
49  								 uint32 inKeyAttr, const CssmData *inKeyLabel)
50  {
51  	new SDKey(session, inKeyHandle, outKey, inDBHandle, inKeyAttr,
52  			  inKeyLabel);
53  }
54  
55  SDKey &
56  SDCSPDLSession::lookupKey(const CssmKey &inKey)
57  {
58  	/* for now we only allow ref keys */
59  	if(inKey.blobType() != CSSM_KEYBLOB_REFERENCE) {
60  		CssmError::throwMe(CSSMERR_CSP_INVALID_KEY);
61  	}
62  	
63  	/* fetch key (this is just mapping the value in inKey.KeyData to an SDKey) */
64  	SDKey &theKey = find<SDKey>(inKey);
65  	
66  	#ifdef someday 
67  	/* 
68  	 * Make sure caller hasn't changed any crucial header fields.
69  	 * Some fields were changed by makeReferenceKey, so make a local copy....
70  	 */
71  	CSSM_KEYHEADER localHdr = cssmKey.KeyHeader;
72  	get binKey-like thing from SDKey, maybe SDKey should keep a copy of 
73  	hdr...but that's' not supersecure....;
74  	
75  	localHdr.BlobType = binKey->mKeyHeader.BlobType;
76  	localHdr.Format = binKey->mKeyHeader.Format;
77  	if(memcmp(&localHdr, &binKey->mKeyHeader, sizeof(CSSM_KEYHEADER))) {
78  		CssmError::throwMe(CSSMERR_CSP_INVALID_KEY_REFERENCE);
79  	}
80  	#endif
81  	return theKey;
82  }