Security/libsecurity_utilities/lib/muscle++.h

   1 /*
   2  * Copyright (c) 2004,2011,2014 Apple Inc. All Rights Reserved.
   3  *
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   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,
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  18  * Please see the License for the specific language governing rights and
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  24
  25
  26 //
  27 // C++ gate to "Muscle" smartcard interface layer
  28 //
  29 // Note: This is written to go together with <pcsc++.h>, rather than stand on
  30 // its own. It doesn't represent a "all Muscle" view of the card world.
  31 //
  32 #ifndef _H_MUSCLE_PP
  33 #define _H_MUSCLE_PP
  34
  35 #include <security_utilities/refcount.h>
  36 #include <security_utilities/pcsc++.h>
  37 #include <PCSC/musclecard.h>
  38 #include <set>
  39
  40
  41 namespace Security {
  42 namespace Muscle {
  43
  44
  45 //
  46 // Muscle-domain error exceptions
  47 //
  48 class Error : public CommonError {
  49 public:
  50         Error(MSC_RV err);
  51
  52     const MSC_RV error;
  53         OSStatus osStatus() const;
  54         int unixError() const;
  55         const char *what () const throw ();
  56
  57         static void check(MSC_RV err) { if (err != MSC_SUCCESS) throwMe(err); }
  58         static void throwMe(MSC_RV err);
  59 };
  60
  61
  62 //
  63 // Unified ACLs of the Muscle kind
  64 //
  65 class ACL {
  66 public:
  67         typedef MSCUShort16 Value;
  68
  69         ACL(Value write = MSC_AUT_ALL, Value read = MSC_AUT_ALL, Value erase = MSC_AUT_ALL);
  70
  71         ACL() { mRead = mWrite = mErase = MSC_AUT_ALL; }
  72
  73         operator MSCKeyACL () const;
  74         operator MSCObjectACL () const;
  75
  76         Value read() const      { return mRead; }
  77         bool read(Value mask) const { return mRead & mask; }
  78         Value &read()           { return mRead; }
  79         Value write() const     { return mWrite; }
  80         bool write(Value mask) const { return mWrite & mask; }
  81         Value &write()          { return mWrite; }
  82         Value erase() const { return mErase; }
  83         bool erase(Value mask) const { return mErase & mask; }
  84         Value &erase()          { return mErase; }
  85         // erase is "use" on keys; they're synonymous
  86         Value use() const { return mErase; }
  87         bool use(Value mask) const { return mErase & mask; }
  88         Value &use()            { return mErase; }
  89
  90         string form(char ue) const;
  91
  92 private:
  93         MSCUShort16 mRead;
  94         MSCUShort16 mWrite;
  95         MSCUShort16 mErase;
  96 };
  97
  98
  99 //
 100 // Muscle item representations (keys and objects unified, the cheap way)
 101 //
 102 class CardItem : public RefCount {
 103 protected:
 104         CardItem() { }
 105
 106 public:
 107         virtual ~CardItem();
 108
 109         virtual unsigned size() const = 0;
 110         virtual const char *name() const = 0;
 111
 112         virtual const ACL &acl() const = 0;
 113         virtual ACL &acl() = 0;
 114
 115         virtual void debugDump() = 0;
 116
 117         bool operator < (const CardItem &other) const { return this < &other; }
 118 };
 119
 120 class Key : public CardItem, public MSCKeyInfo {
 121 public:
 122         Key(const MSCKeyInfo &info);
 123
 124         unsigned id() const                             { return this->keyNum; }
 125         const char *name() const;
 126         unsigned type() const                   { return this->keyType; }
 127         unsigned size() const;
 128         unsigned mode() const                   { return this->keyPolicy.cipherMode; }
 129         unsigned operations() const             { return this->keyPolicy.cipherDirection; }
 130
 131         const ACL &acl() const;
 132         ACL &acl();
 133
 134         void debugDump();
 135
 136 private:
 137         char mKeyName[8];                               // made-up name "Kn"
 138 };
 139
 140 class Object : public CardItem, public MSCObjectInfo {
 141 public:
 142         Object(const MSCObjectInfo &info) : MSCObjectInfo(info) { }
 143
 144         const char *name() const;
 145         unsigned size() const;
 146
 147         const ACL &acl() const;
 148         ACL &acl();
 149
 150         void debugDump();
 151 };
 152
 153
 154 //
 155 // A Muscle connection to a card.
 156 // This is NOT a PodWrapper (for MSCTokenConnection or anything else).
 157 //
 158 class Transaction;
 159
 160 class Connection : public MSCTokenConnection, public MSCStatusInfo {
 161 public:
 162         Connection();
 163         ~Connection();
 164
 165         void open(const PCSC::ReaderState &reader, unsigned share = MSC_SHARE_EXCLUSIVE);
 166         void close();
 167
 168         operator bool () const { return mIsOpen; }
 169
 170         void begin(Transaction *trans = NULL);
 171         void end(Transaction *trans = NULL);
 172         Transaction *currentTransaction() const;
 173
 174         typedef set<RefPointer<CardItem> > ItemSet;
 175         void getItems(ItemSet &items, bool getKeys = true, bool getOthers = true);
 176
 177         void updateStatus();
 178
 179 private:
 180         bool mIsOpen;
 181         Transaction *mCurrentTransaction;
 182 };
 183
 184
 185 class Transaction {
 186 public:
 187         Transaction(Connection &con);
 188         ~Transaction();
 189
 190         Connection &connection;
 191 };
 192
 193
 194 }       // namespace Muscle
 195 }       // namespace Security
 196
 197
 198 #endif //_H_MUSCLE_PP