src/authority.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26
  27 //
  28 // authority - authorization manager
  29 //
  30 #ifndef _H_AUTHORITY
  31 #define _H_AUTHORITY
  32
  33 #include "securityserver.h"
  34 #include <security_cdsa_utilities/AuthorizationData.h>
  35 #include <security_cdsa_client/osxsigning.h>
  36 #include "database.h"
  37
  38 using Authorization::Credential;
  39 using Authorization::CredentialSet;
  40 using Authorization::AuthItemSet;
  41
  42 class Process;
  43 class Session;
  44
  45 class AuthorizationToken : public PerSession {
  46 public:
  47         AuthorizationToken(Session &ssn, const CredentialSet &base, const security_token_t &securityToken);
  48         ~AuthorizationToken();
  49
  50     Session &session() const;
  51
  52         const AuthorizationBlob &handle() const         { return mHandle; }
  53         const CredentialSet &baseCreds() const          { return mBaseCreds; }
  54         CredentialSet effectiveCreds() const;
  55
  56         typedef CredentialSet::iterator iterator;
  57         iterator begin()                { return mBaseCreds.begin(); }
  58         iterator end()                  { return mBaseCreds.end(); }
  59
  60         // add more credential dependencies
  61         void mergeCredentials(const CredentialSet &more);
  62
  63         // maintain process-owning links
  64         void addProcess(Process &proc);
  65         bool endProcess(Process &proc);
  66
  67         // access control for external representations
  68         bool mayExternalize(Process &proc) const;
  69         bool mayInternalize(Process &proc, bool countIt = true);
  70
  71         uid_t creatorUid() const        { return mCreatorUid; }
  72     CodeSigning::OSXCode *creatorCode() const { return mCreatorCode; }
  73         pid_t creatorPid() const        { return mCreatorPid; }
  74
  75         AuthItemSet infoSet(AuthorizationString tag = NULL);
  76     void setInfoSet(AuthItemSet &newInfoSet);
  77     void setCredentialInfo(const Credential &inCred);
  78     void clearInfoSet();
  79
  80 public:
  81         static AuthorizationToken &find(const AuthorizationBlob &blob);
  82
  83     class Deleter {
  84     public:
  85         Deleter(const AuthorizationBlob &blob);
  86
  87         void remove();
  88         operator AuthorizationToken &() const   { return *mAuth; }
  89
  90     private:
  91         AuthorizationToken *mAuth;
  92         StLock<Mutex> lock;
  93     };
  94
  95 private:
  96         Mutex mLock;                                    // object lock
  97         AuthorizationBlob mHandle;              // official randomized blob marker
  98         CredentialSet mBaseCreds;               // credentials we're based on
  99
 100         unsigned int mTransferCount;    // number of internalizations remaining
 101
 102         typedef set<Process *> ProcessSet;
 103         ProcessSet mUsingProcesses;             // set of process objects using this token
 104
 105         uid_t mCreatorUid;                              // Uid of proccess that created this authorization
 106     RefPointer<CodeSigning::OSXCode> mCreatorCode; // code id of creator
 107         pid_t mCreatorPid;                              // Pid of processs that created this authorization
 108
 109     AuthItemSet mInfoSet;                       // Side band info gathered from evaluations in this session
 110
 111 private:
 112         typedef map<AuthorizationBlob, RefPointer<AuthorizationToken> > AuthMap;
 113         static AuthMap authMap;                 // set of extant authorizations
 114     static Mutex authMapLock;           // lock for mAuthorizations (only)
 115 };
 116
 117
 118
 119
 120 #endif //_H_AUTHORITY