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 audit_token_t &auditToken);
  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         uid_t creatorGid() const        { return mCreatorGid; }
  64     CodeSigning::OSXCode *creatorCode() const { return mCreatorCode; }
  65         pid_t creatorPid() const        { return mCreatorPid; }
  66
  67         audit_token_t creatorAuditToken() const {return mCreatorAuditToken; }
  68
  69         AuthItemSet infoSet(AuthorizationString tag = NULL);
  70     void setInfoSet(AuthItemSet &newInfoSet);
  71     void setCredentialInfo(const Credential &inCred);
  72     void clearInfoSet();
  73
  74 public:
  75         static AuthorizationToken &find(const AuthorizationBlob &blob);
  76
  77     class Deleter {
  78     public:
  79         Deleter(const AuthorizationBlob &blob);
  80
  81         void remove();
  82         operator AuthorizationToken &() const   { return *mAuth; }
  83
  84     private:
  85         AuthorizationToken *mAuth;
  86         StLock<Mutex> lock;
  87     };
  88
  89 private:
  90         Mutex mLock;                                    // object lock
  91         AuthorizationBlob mHandle;              // official randomized blob marker
  92         CredentialSet mBaseCreds;               // credentials we're based on
  93
  94         unsigned int mTransferCount;    // number of internalizations remaining
  95
  96         typedef set<Process *> ProcessSet;
  97         ProcessSet mUsingProcesses;             // set of process objects using this token
  98
  99         uid_t mCreatorUid;                              // Uid of proccess that created this authorization
 100         gid_t mCreatorGid;                              // Gid of proccess that created this authorization
 101     RefPointer<OSXCode> mCreatorCode; // code id of creator
 102         pid_t mCreatorPid;                              // Pid of processs that created this authorization
 103
 104         audit_token_t mCreatorAuditToken;       // Audit token of the process that created this authorization
 105
 106     AuthItemSet mInfoSet;                       // Side band info gathered from evaluations in this session
 107
 108 private:
 109         typedef map<AuthorizationBlob, AuthorizationToken *> AuthMap;
 110         static AuthMap authMap;                 // set of extant authorizations
 111     static Mutex authMapLock;           // lock for mAuthorizations (only)
 112 };
 113
 114
 115 //
 116 // The authority itself. You will usually only have one of these.
 117 //
 118 class Authority : public Authorization::Engine {
 119 public:
 120         Authority(const char *configFile);
 121         ~Authority();
 122 };
 123
 124
 125 #endif //_H_AUTHORITY