lib/resources.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, 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 // resource directory construction and verification
  26 //
  27 #ifndef _H_RSIGN
  28 #define _H_RSIGN
  29
  30 #include "CodeSigner.h"
  31 #include "renum.h"
  32 #include <security_utilities/utilities.h>
  33 #include "regex.h"
  34 #include <vector>
  35
  36 namespace Security {
  37 namespace CodeSigning {
  38
  39
  40 //
  41 // The builder of ResourceDirectories.
  42 //
  43 // Note that this *is* a ResourceEnumerate, which can enumerate
  44 // its source directory once (only).
  45 //
  46 class ResourceBuilder : public ResourceEnumerator {
  47 public:
  48         ResourceBuilder(const std::string &root, CFDictionaryRef rules);
  49         ~ResourceBuilder();
  50
  51         CFDictionaryRef build();
  52
  53         enum Action {
  54                 optional = 0x01,                                // may be absent at runtime
  55                 omitted = 0x02,                                 // do not seal even if present
  56         };
  57
  58         typedef unsigned int Weight;
  59
  60 public:
  61         class Rule : private regex_t {
  62         public:
  63                 Rule(const std::string &pattern, Weight weight, uint32_t flags);
  64                 ~Rule();
  65
  66                 bool match(const char *s) const;
  67
  68                 const Weight weight;
  69                 const uint32_t flags;
  70         };
  71         void addRule(Rule *rule) { mRules.push_back(rule); }
  72
  73         FTSENT *next(std::string &path, Rule * &rule);  // enumerate next file and match rule
  74
  75 protected:
  76         void addRule(CFTypeRef key, CFTypeRef value);
  77         CFDataRef hashFile(const char *path);
  78
  79 private:
  80         CFCopyRef<CFDictionaryRef> mRawRules;
  81         typedef std::vector<Rule *> Rules;
  82         Rules mRules;
  83 };
  84
  85
  86 //
  87 // The "seal" on a single resource.
  88 //
  89 class ResourceSeal {
  90 public:
  91         ResourceSeal(CFTypeRef ref);
  92
  93 public:
  94         operator bool () const { return mHash; }
  95         bool operator ! () const { return mHash == NULL; }
  96
  97         const SHA1::Byte *hash() const { return CFDataGetBytePtr(mHash); }
  98         bool optional() const { return mOptional; }
  99
 100 private:
 101         CFDataRef mHash;
 102         int mOptional;
 103 };
 104
 105
 106 } // end namespace CodeSigning
 107 } // end namespace Security
 108
 109 #endif // !_H_RSIGN