lib/bundlediskrep.h

   1 /*
   2  * Copyright (c) 2006-2007 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 //
  25 // bundlediskrep - bundle directory disk representation
  26 //
  27 #ifndef _H_BUNDLEDISKREP
  28 #define _H_BUNDLEDISKREP
  29
  30 #include "diskrep.h"
  31 #include "machorep.h"
  32
  33 namespace Security {
  34 namespace CodeSigning {
  35
  36
  37 #define BUNDLEDISKREP_DIRECTORY         "_CodeSignature"
  38
  39
  40 //
  41 // A BundleDiskRep represents a standard Mac OS X bundle on disk.
  42 // The bundle is expected to have an Info.plist, and a "main executable file"
  43 // of some sort (as indicated therein).
  44 // The BundleDiskRep stores the necessary components in the main executable
  45 // if it is in Mach-O format, or in Contents files if not.
  46 // This DiskRep supports resource sealing.
  47 //
  48 class BundleDiskRep : public DiskRep {
  49 public:
  50         BundleDiskRep(const char *path, const Context *ctx = NULL);
  51         BundleDiskRep(CFBundleRef ref, const Context *ctx = NULL);
  52
  53         CFDataRef component(CodeDirectory::SpecialSlot slot);
  54         CFDataRef identification();
  55         std::string mainExecutablePath();
  56         CFURLRef canonicalPath();
  57         std::string resourcesRootPath();
  58         void adjustResources(ResourceBuilder &builder);
  59         Universal *mainExecutableImage();
  60         size_t signingBase();
  61         size_t signingLimit();
  62         std::string format();
  63         CFArrayRef modifiedFiles();
  64         UnixPlusPlus::FileDesc &fd();
  65         void flush();
  66
  67         std::string recommendedIdentifier(const SigningContext &ctx);
  68         CFDictionaryRef defaultResourceRules(const SigningContext &ctx);
  69         const Requirements *defaultRequirements(const Architecture *arch, const SigningContext &ctx);
  70         size_t pageSize(const SigningContext &ctx);
  71
  72         CFBundleRef bundle() const { return mBundle; }
  73
  74 public:
  75         Writer *writer();
  76         class Writer;
  77         friend class Writer;
  78
  79 protected:
  80         std::string metaPath(const char *name);
  81         CFDataRef metaData(const char *name) { return cfLoadFile(CFTempURL(metaPath(name))); }
  82         void createMeta();                                              // (try to) create the meta-file directory
  83
  84 private:
  85         void setup(const Context *ctx);                 // shared init
  86         void checkModifiedFile(CFMutableArrayRef files, CodeDirectory::SpecialSlot slot);
  87
  88 private:
  89         CFRef<CFBundleRef> mBundle;
  90         std::string mMetaPath;                                  // path to directory containing signing files
  91         bool mMetaExists;                                               // separate meta-file directory exists
  92         RefPointer<DiskRep> mExecRep;                   // DiskRep for main executable file
  93 };
  94
  95
  96 //
  97 // Writers
  98 //
  99 //
 100 class BundleDiskRep::Writer : public DiskRep::Writer {
 101         friend class BundleDiskRep;
 102 public:
 103         Writer(BundleDiskRep *r);
 104
 105         void component(CodeDirectory::SpecialSlot slot, CFDataRef data);
 106         void remove();
 107         void flush();
 108
 109 protected:
 110         DiskRep *execRep() { return rep->mExecRep; }
 111         void remove(CodeDirectory::SpecialSlot slot);
 112
 113 protected:
 114         RefPointer<BundleDiskRep> rep;
 115         RefPointer<DiskRep::Writer> execWriter;
 116         bool mMadeMetaDirectory;
 117 };
 118
 119
 120 } // end namespace CodeSigning
 121 } // end namespace Security
 122
 123 #endif // !_H_BUNDLEDISKREP