Security-58286.240.4.tar.gz

[apple/security.git] / OSX / libsecurity_apple_cspdl / lib / SSFactory.cpp

/*
 * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
 * 
 * The contents of this file constitute Original Code as defined in and are
 * subject to the Apple Public Source License Version 1.2 (the 'License').
 * You may not use this file except in compliance with the License. Please obtain
 * a copy of the License at http://www.apple.com/publicsource and read it before
 * using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
 * specific language governing rights and limitations under the License.
 */


//
// SSFactory -- The factory for Security Server context objects
//
#include "SSFactory.h"

#include "SSContext.h"


//
// SSFactory -- The factory for Security Server context objects
//
bool SSFactory::setup(SSCSPSession &session, CSPFullPluginSession::CSPContext * &cspCtx,
					  const Context &context, bool encoding)
{
	if (cspCtx)
		return false;	// not ours or already set

	switch (context.type())
	{
	case CSSM_ALGCLASS_SIGNATURE:
		cspCtx = new SSSignatureContext(session);
		return true;
	case CSSM_ALGCLASS_MAC:
		cspCtx = new SSMACContext(session);
		return true;
	case CSSM_ALGCLASS_DIGEST:
		cspCtx = new SSDigestContext(session);
		return true;
	case CSSM_ALGCLASS_SYMMETRIC:
	case CSSM_ALGCLASS_ASYMMETRIC:
		cspCtx = new SSCryptContext(session); // @@@ Could also be wrap/unwrap
		return true;
	case CSSM_ALGCLASS_RANDOMGEN:
		cspCtx = new SSRandomContext(session); // @@@ Should go.
		return true;
	}

	return false;

#if 0
	/* FIXME - qualify by ALGCLASS as well to avoid MAC */
	switch (context.algorithm()) {
	case CSSM_ALGID_MD5:
		cspCtx = new MD5Context(session);
		return true;
	case CSSM_ALGID_SHA1:
		cspCtx = new SHA1Context(session);
		return true;
	}
	return false;

    if (ctx)
        CssmError::throwMe(CSSM_ERRCODE_INTERNAL_ERROR);	// won't support re-definition
    switch (context.algorithm()) {
        case CSSM_ALGID_ROTTY_ROT_16:
            ctx = new SSContext(16);
            return true;
        case CSSM_ALGID_ROTTY_ROT_37:
            ctx = new SSContext(37);
            return true;
    }
#endif
}