Security-57031.1.35.tar.gz

[apple/security.git] / securityd / src / tempdatabase.h

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+/*
+ * Copyright (c) 2004 Apple Computer, 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@
+ */
+
+
+//
+// tempdatabase - temporary (scratch) storage for keys
+//
+// A TempDatabase locally manages keys using the AppleCSP while providing
+// no persistent storage. Keys live until they are no longer referenced in
+// client space, at which point they are destroyed.
+//
+#ifndef _H_TEMPDATABASE
+#define _H_TEMPDATABASE
+
+#include "localdatabase.h"
+
+
+//
+// A TempDatabase is simply a container of (a subclass of) LocalKey.
+// When it dies, all its contents irretrievably vanish. There is no DbCommon
+// or global object; each TempDatabase is completely distinct.
+// Database ACLs are not (currently) supported on TempDatabases.
+//
+class TempDatabase : public LocalDatabase {
+public:
+       TempDatabase(Process &proc);
+
+       const char *dbName() const;
+       bool transient() const;
+       
+       RefPointer<Key> makeKey(const CssmKey &newKey, uint32 moreAttributes,
+               const AclEntryPrototype *owner);
+       
+       void generateKey(const Context &context,
+                const AccessCredentials *cred, 
+                const AclEntryPrototype *owner, uint32 usage, 
+                uint32 attrs, RefPointer<Key> &newKey);
+       
+protected:
+       void getSecurePassphrase(const Context &context, string &passphrase);
+       void makeSecurePassphraseKey(const Context &context, const AccessCredentials *cred, 
+                                                                const AclEntryPrototype *owner, uint32 usage, 
+                                                                uint32 attrs, RefPointer<Key> &newKey);
+};
+
+#endif //_H_TEMPDATABASE