libsecurity_codesigning/lib/bundlediskrep.h

   1 /*
   2  * Copyright (c) 2006-2011 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 #define STORE_RECEIPT_DIRECTORY         "_MASReceipt"
  39
  40
  41 //
  42 // A BundleDiskRep represents a standard Mac OS X bundle on disk.
  43 // The bundle is expected to have an Info.plist, and a "main executable file"
  44 // of some sort (as indicated therein).
  45 // The BundleDiskRep stores the necessary components in the main executable
  46 // if it is in Mach-O format, or in files in a _CodeSignature directory if not.
  47 // This DiskRep supports resource sealing.
  48 //
  49 class BundleDiskRep : public DiskRep {
  50 public:
  51         BundleDiskRep(const char *path, const Context *ctx = NULL);
  52         BundleDiskRep(CFBundleRef ref, const Context *ctx = NULL);
  53
  54         CFDataRef component(CodeDirectory::SpecialSlot slot);
  55         CFDataRef identification();
  56         std::string mainExecutablePath();
  57         CFURLRef canonicalPath();
  58         std::string resourcesRootPath();
  59         void adjustResources(ResourceBuilder &builder);
  60         Universal *mainExecutableImage();
  61         size_t signingBase();
  62         size_t signingLimit();
  63         std::string format();
  64         CFArrayRef modifiedFiles();
  65         UnixPlusPlus::FileDesc &fd();
  66         void flush();
  67
  68         std::string recommendedIdentifier(const SigningContext &ctx);
  69         CFDictionaryRef defaultResourceRules(const SigningContext &ctx);
  70         const Requirements *defaultRequirements(const Architecture *arch, const SigningContext &ctx);
  71         size_t pageSize(const SigningContext &ctx);
  72
  73         CFBundleRef bundle() const { return mBundle; }
  74
  75 public:
  76         Writer *writer();
  77         class Writer;
  78         friend class Writer;
  79
  80 protected:
  81         std::string metaPath(const char *name);
  82         CFDataRef metaData(const char *name) { return cfLoadFile(CFTempURL(metaPath(name))); }
  83         void createMeta();                                              // (try to) create the meta-file directory
  84
  85 private:
  86         void setup(const Context *ctx);                 // shared init
  87         void checkModifiedFile(CFMutableArrayRef files, CodeDirectory::SpecialSlot slot);
  88
  89 private:
  90         CFRef<CFBundleRef> mBundle;
  91         std::string mMetaPath;                                  // path to directory containing signing files
  92         bool mMetaExists;                                               // separate meta-file directory exists
  93         CFRef<CFURLRef> mMainExecutableURL;             // chosen main executable URL
  94         bool mInstallerPackage;                                 // is an installer (not executable) bundle
  95         string mFormat;                                                 // format description string
  96         RefPointer<DiskRep> mExecRep;                   // DiskRep for main executable file
  97 };
  98
  99
 100 //
 101 // Writers
 102 //
 103 //
 104 class BundleDiskRep::Writer : public DiskRep::Writer {
 105         friend class BundleDiskRep;
 106 public:
 107         Writer(BundleDiskRep *r);
 108
 109         void component(CodeDirectory::SpecialSlot slot, CFDataRef data);
 110         void remove();
 111         void flush();
 112
 113 protected:
 114         DiskRep *execRep() { return rep->mExecRep; }
 115         void remove(CodeDirectory::SpecialSlot slot);
 116
 117 protected:
 118         RefPointer<BundleDiskRep> rep;
 119         RefPointer<DiskRep::Writer> execWriter;
 120         bool mMadeMetaDirectory;
 121 };
 122
 123
 124 } // end namespace CodeSigning
 125 } // end namespace Security
 126
 127 #endif // !_H_BUNDLEDISKREP