Security/libsecurity_apple_cspdl/lib/SSFactory.cpp

   1 /*
   2  * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // SSFactory -- The factory for Security Server context objects
  21 //
  22 #include "SSFactory.h"
  23
  24 #include "SSContext.h"
  25
  26
  27 //
  28 // SSFactory -- The factory for Security Server context objects
  29 //
  30 bool SSFactory::setup(SSCSPSession &session, CSPFullPluginSession::CSPContext * &cspCtx,
  31                                           const Context &context, bool encoding)
  32 {
  33         if (cspCtx)
  34                 return false;   // not ours or already set
  35
  36         switch (context.type())
  37         {
  38         case CSSM_ALGCLASS_SIGNATURE:
  39                 cspCtx = new SSSignatureContext(session);
  40                 return true;
  41         case CSSM_ALGCLASS_MAC:
  42                 cspCtx = new SSMACContext(session);
  43                 return true;
  44         case CSSM_ALGCLASS_DIGEST:
  45                 cspCtx = new SSDigestContext(session);
  46                 return true;
  47         case CSSM_ALGCLASS_SYMMETRIC:
  48         case CSSM_ALGCLASS_ASYMMETRIC:
  49                 cspCtx = new SSCryptContext(session); // @@@ Could also be wrap/unwrap
  50                 return true;
  51         case CSSM_ALGCLASS_RANDOMGEN:
  52                 cspCtx = new SSRandomContext(session); // @@@ Should go.
  53                 return true;
  54         }
  55
  56         return false;
  57
  58 #if 0
  59         /* FIXME - qualify by ALGCLASS as well to avoid MAC */
  60         switch (context.algorithm()) {
  61         case CSSM_ALGID_MD5:
  62                 cspCtx = new MD5Context(session);
  63                 return true;
  64         case CSSM_ALGID_SHA1:
  65                 cspCtx = new SHA1Context(session);
  66                 return true;
  67         }
  68         return false;
  69
  70     if (ctx)
  71         CssmError::throwMe(CSSM_ERRCODE_INTERNAL_ERROR);        // won't support re-definition
  72     switch (context.algorithm()) {
  73         case CSSM_ALGID_ROTTY_ROT_16:
  74             ctx = new SSContext(16);
  75             return true;
  76         case CSSM_ALGID_ROTTY_ROT_37:
  77             ctx = new SSContext(37);
  78             return true;
  79     }
  80 #endif
  81     return false;
  82 }