Security-57031.1.35.tar.gz

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

diff --git a/Security/libsecurity_codesigning/lib/slcrep.h b/Security/libsecurity_codesigning/lib/slcrep.h
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+/*
+ * Copyright (c) 2009,2011-2012 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@
+ */
+
+//
+// slcrep - DiskRep representing the Mac OS Shared Library Cache
+//
+#ifndef _H_SLCREP
+#define _H_SLCREP
+
+#include "singlediskrep.h"
+#include "sigblob.h"
+#include <security_utilities/unix++.h>
+#include <security_utilities/macho++.h>
+#include <security_utilities/dyldcache.h>
+
+namespace Security {
+namespace CodeSigning {
+
+
+//
+// DYLDCacheRep implements the on-disk format for the Mac OS X
+// Shared Library Cache, which coalesces a set of system libraries
+// and frameworks into one big (mappable) code blob in the sky.
+//
+class DYLDCacheRep : public SingleDiskRep {
+public:
+       DYLDCacheRep(const Context *ctx = NULL);
+       DYLDCacheRep(const char *path);
+       
+       CFDataRef component(CodeDirectory::SpecialSlot slot);
+       size_t pageSize(const SigningContext &ctx);
+       size_t signingLimit();
+       std::string format();
+       
+       static bool candidate(UnixPlusPlus::FileDesc &fd);
+       
+public:
+       static CFDataRef identificationFor(MachO *macho);
+       
+public:
+       DiskRep::Writer *writer();
+       class Writer;
+       friend class Writer;
+
+private:
+       void setup();
+
+private:
+       DYLDCache mCache;
+       const EmbeddedSignatureBlob *mSigningData;      // pointer to signature SuperBlob (in mapped memory)
+};
+
+
+//
+// The write side of a FileDiskRep
+//
+class DYLDCacheRep::Writer : public SingleDiskRep::Writer, private EmbeddedSignatureBlob::Maker {
+       friend class FileDiskRep;
+public:
+       Writer(DYLDCacheRep *r) : SingleDiskRep::Writer(r, writerNoGlobal), rep(r), mSigningData(NULL) { }
+       void component(CodeDirectory::SpecialSlot slot, CFDataRef data);
+       void flush();
+       void addDiscretionary(CodeDirectory::Builder &builder);
+       
+private:
+       DYLDCacheRep *rep;
+       EmbeddedSignatureBlob *mSigningData;
+};
+
+
+} // end namespace CodeSigning
+} // end namespace Security
+
+#endif // !_H_SLCREP