SecurityServer/authority.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // authority - authorization manager
  21 //
  22 #ifndef _H_AUTHORITY
  23 #define _H_AUTHORITY
  24
  25 #include "securityserver.h"
  26 #include "AuthorizationEngine.h"
  27
  28 using Authorization::Credential;
  29 using Authorization::CredentialSet;
  30 using Authorization::AuthItemSet;
  31
  32 class Process;
  33 class Session;
  34
  35
  36 class AuthorizationToken {
  37 public:
  38         AuthorizationToken(Session &ssn, const CredentialSet &base, const security_token_t &securityToken);
  39         ~AuthorizationToken();
  40
  41     Session &session;
  42
  43         const AuthorizationBlob &handle() const         { return mHandle; }
  44         const CredentialSet &baseCreds() const          { return mBaseCreds; }
  45         CredentialSet effectiveCreds() const;
  46
  47         typedef CredentialSet::iterator iterator;
  48         iterator begin()                { return mBaseCreds.begin(); }
  49         iterator end()                  { return mBaseCreds.end(); }
  50
  51         // add more credential dependencies
  52         void mergeCredentials(const CredentialSet &more);
  53
  54         // maintain process-owning links
  55         void addProcess(Process &proc);
  56         bool endProcess(Process &proc);
  57
  58         // access control for external representations
  59         bool mayExternalize(Process &proc) const;
  60         bool mayInternalize(Process &proc, bool countIt = true);
  61
  62         uid_t creatorUid() const        { return mCreatorUid; }
  63     CodeSigning::OSXCode *creatorCode() const { return mCreatorCode; }
  64         pid_t creatorPid() const        { return mCreatorPid; }
  65
  66         AuthItemSet infoSet(AuthorizationString tag = NULL);
  67     void setInfoSet(AuthItemSet &newInfoSet);
  68     void setCredentialInfo(const Credential &inCred);
  69
  70 public:
  71         static AuthorizationToken &find(const AuthorizationBlob &blob);
  72
  73     class Deleter {
  74     public:
  75         Deleter(const AuthorizationBlob &blob);
  76
  77         void remove();
  78         operator AuthorizationToken &() const   { return *mAuth; }
  79
  80     private:
  81         AuthorizationToken *mAuth;
  82         StLock<Mutex> lock;
  83     };
  84
  85 private:
  86         Mutex mLock;                                    // object lock
  87         AuthorizationBlob mHandle;              // official randomized blob marker
  88         CredentialSet mBaseCreds;               // credentials we're based on
  89
  90         unsigned int mTransferCount;    // number of internalizations remaining
  91
  92         typedef set<Process *> ProcessSet;
  93         ProcessSet mUsingProcesses;             // set of process objects using this token
  94
  95         uid_t mCreatorUid;                              // Uid of proccess that created this authorization
  96     RefPointer<OSXCode> mCreatorCode; // code id of creator
  97         pid_t mCreatorPid;                              // Pid of processs that created this authorization
  98
  99     AuthItemSet mInfoSet;                       // Side band info gathered from evaluations in this session
 100
 101 private:
 102         typedef map<AuthorizationBlob, AuthorizationToken *> AuthMap;
 103         static AuthMap authMap;                 // set of extant authorizations
 104     static Mutex authMapLock;           // lock for mAuthorizations (only)
 105 };
 106
 107
 108 //
 109 // The authority itself. You will usually only have one of these.
 110 //
 111 class Authority : public Authorization::Engine {
 112 public:
 113         Authority(const char *configFile);
 114         ~Authority();
 115 };
 116
 117
 118 #endif //_H_AUTHORITY