Security-57031.1.35.tar.gz

[apple/security.git] / securityd / src / tokenkey.cpp

diff --git a/securityd/src/tokenkey.cpp b/securityd/src/tokenkey.cpp
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+/*
+ * Copyright (c) 2004,2008 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The 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.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+//
+// tokenkey - remote reference key on an attached hardware token
+//
+#include "tokenkey.h"
+#include "tokendatabase.h"
+
+
+//
+// Construct a TokenKey from a reference handle and key header
+//
+TokenKey::TokenKey(TokenDatabase &db, KeyHandle tokenKey, const CssmKey::Header &hdr)
+       : Key(db), mKey(tokenKey), mHeader(hdr)
+{
+       db.addReference(*this);
+}
+
+
+//
+// Destruction of a TokenKey releases the reference from tokend
+//
+TokenKey::~TokenKey()
+{
+       try {
+               database().token().tokend().releaseKey(mKey);
+       } catch (...) {
+               secdebug("tokendb", "%p release key handle %u threw (ignored)",
+                       this, mKey);
+       }
+}
+
+
+//
+// Links through the object mesh
+//
+TokenDatabase &TokenKey::database() const
+{
+       return referent<TokenDatabase>();
+}
+
+Token &TokenKey::token()
+{
+       return database().token();
+}
+
+GenericHandle TokenKey::tokenHandle() const
+{
+       return mKey;    // tokend-side handle
+}
+
+
+//
+// Canonical external attributes (taken directly from the key header)
+//
+CSSM_KEYATTR_FLAGS TokenKey::attributes()
+{
+       return mHeader.attributes();
+}
+
+
+//
+// Return-to-caller processing (trivial in this case)
+//
+void TokenKey::returnKey(Handle &h, CssmKey::Header &hdr)
+{
+       h = this->handle();
+       hdr = mHeader;
+}
+
+
+//
+// We're a key (duh)
+//
+AclKind TokenKey::aclKind() const
+{
+       return keyAcl;
+}
+
+
+//
+// Right now, key ACLs are at the process level
+//
+SecurityServerAcl &TokenKey::acl()
+{
+       return *this;
+}
+
+
+//
+// The related database is, naturally enough, the TokenDatabase we're in
+//
+Database *TokenKey::relatedDatabase()
+{
+       return &database();
+}
+
+
+//
+// Generate the canonical key digest.
+// This is not currently supported through tokend. If we need it,
+// we'll have to force unlock and fake it (in tokend, most likely).
+//
+const CssmData &TokenKey::canonicalDigest()
+{
+       CssmError::throwMe(CSSM_ERRCODE_FUNCTION_NOT_IMPLEMENTED);
+}