Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_codesigning / lib / filediskrep.h

diff --git a/Security/libsecurity_codesigning/lib/filediskrep.h b/Security/libsecurity_codesigning/lib/filediskrep.h
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+/*
+ * Copyright (c) 2006-2007,2011 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@
+ */
+
+//
+// filediskrep - single-file executable disk representation
+//
+#ifndef _H_FILEDISKREP
+#define _H_FILEDISKREP
+
+#include "singlediskrep.h"
+#include "machorep.h"
+#include <security_utilities/cfutilities.h>
+
+namespace Security {
+namespace CodeSigning {
+
+
+//
+// A FileDiskRep represents a single code file on disk. We assume nothing about
+// the format or contents of the file and impose no structure on it, other than
+// assuming that all relevant code is contained in the file's data bytes.
+// By default, we seal the entire file data as a single page.
+//
+// This is the ultimate fallback disk format. It is used if no other pattern
+// applies. As such it is important that we do not introduce any assumptions
+// here. Know that you do not know what any of the file means.
+//
+// FileDiskrep stores components in extended file attributes, one attribute
+// per component. Note that this imposes size limitations on component size
+// that may well be prohibitive in some applications.
+//
+// This DiskRep does not support resource sealing.
+//
+class FileDiskRep : public SingleDiskRep {
+public:
+       FileDiskRep(const char *path);
+       
+       CFDataRef component(CodeDirectory::SpecialSlot slot);
+       std::string format();
+       
+       const Requirements *defaultRequirements(const Architecture *arch, const SigningContext &ctx);
+       
+public:
+       DiskRep::Writer *writer();
+       class Writer;
+       friend class Writer;
+       
+protected:
+       CFDataRef getAttribute(const char *name);
+       static std::string attrName(const char *name);
+};
+
+
+//
+// The write side of a FileDiskRep
+//
+class FileDiskRep::Writer : public SingleDiskRep::Writer {
+       friend class FileDiskRep;
+public:
+       void component(CodeDirectory::SpecialSlot slot, CFDataRef data);
+       void remove();
+       bool preferredStore();
+
+protected:
+       Writer(FileDiskRep *r) : SingleDiskRep::Writer(r, writerLastResort) { }
+       RefPointer<FileDiskRep> rep;
+};
+
+
+} // end namespace CodeSigning
+} // end namespace Security
+
+#endif // !_H_FILEDISKREP