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+/*
+ * Copyright (c) 2000-2004 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@
+ */
+//
+// clientid - track and manage identity of securityd clients
+//
+#ifndef _H_CLIENTID
+#define _H_CLIENTID
+
+#include "codesigdb.h"
+#include <Security/SecCode.h>
+#include <security_utilities/cfutilities.h>
+#include <string>
+
+
+//
+// A ClientIdentification object is a mix-in class that tracks
+// the identity of associated client processes and their sub-entities
+// (aka Code Signing Guest objects).
+//
+class ClientIdentification : public CodeSignatures::Identity {
+public:
+	ClientIdentification();
+	
+	SecCodeRef processCode() const;
+	SecCodeRef currentGuest() const;
+
+	// CodeSignatures::Identity personality
+	string getPath() const;
+	const CssmData getHash() const;
+	
+protected:
+	void setup(pid_t pid);
+
+public:
+	IFDUMP(void dump());
+	
+private:
+	CFRef<SecCodeRef> mClientProcess;	// process-level client object
+
+	mutable Mutex mLock;				// protects everything below
+	
+	struct GuestState {
+		GuestState() : gotHash(false) { }
+		CFRef<SecCodeRef> code;
+		mutable bool gotHash;
+		mutable SHA1::Digest legacyHash;
+	};
+	typedef std::map<SecGuestRef, GuestState> GuestMap;
+	mutable GuestMap mGuests;
+	
+	GuestState *current() const;
+};
+
+
+//
+// Bonus function
+//
+std::string codePath(SecStaticCodeRef code);
+
+
+#endif //_H_CLIENTID