OSX/libsecurity_sd_cspdl/lib/SDCSPDLSession.cpp

   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 }