libsecurity_keychain/lib/CCallbackMgr.h

   1 /*
   2  * Copyright (c) 1998-2004 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 /*
  26  *  CCallbackMgr.h -- Code that communicates with processes that install a callback
  27  *  with the Keychain Manager to receive keychain events.
  28  */
  29 #ifndef _SECURITY_CCALLBACKMGR_H_
  30 #define _SECURITY_CCALLBACKMGR_H_
  31
  32 #include <security_keychain/Keychains.h>
  33 #include <security_utilities/cfmach++.h>
  34 #include <securityd_client/ssnotify.h>
  35 #include <securityd_client/dictionary.h>
  36 #include <securityd_client/eventlistener.h>
  37 #include <list>
  38 #include "KCEventNotifier.h"
  39
  40 namespace Security
  41 {
  42
  43 namespace KeychainCore
  44 {
  45
  46 class CallbackInfo;
  47 class CCallbackMgr;
  48
  49 class CallbackInfo
  50 {
  51 public:
  52         ~CallbackInfo();
  53         CallbackInfo();
  54         CallbackInfo(SecKeychainCallback inCallbackFunction,SecKeychainEventMask inEventMask,void *inContext);
  55
  56         bool operator ==(const CallbackInfo& other) const;
  57         bool operator !=(const CallbackInfo& other) const;
  58
  59         SecKeychainCallback mCallback;
  60         SecKeychainEventMask mEventMask;
  61         void *mContext;
  62 };
  63
  64 // typedefs
  65 typedef CallbackInfo *CallbackInfoPtr;
  66 typedef CallbackInfo const *ConstCallbackInfoPtr;
  67
  68 typedef list<CallbackInfo>::iterator CallbackInfoListIterator;
  69 typedef list<CallbackInfo>::const_iterator ConstCallbackInfoListIterator;
  70
  71
  72 class CCallbackMgr : public SecurityServer::EventListener
  73 {
  74 public:
  75         CCallbackMgr();
  76         ~CCallbackMgr();
  77
  78         static CCallbackMgr& Instance();
  79
  80         static void AddCallback( SecKeychainCallback inCallbackFunction, SecKeychainEventMask inEventMask, void* inContext);
  81
  82         static void RemoveCallback( SecKeychainCallback inCallbackFunction );
  83     //static void RemoveCallbackUPP(KCCallbackUPP inCallbackFunction);
  84         static bool HasCallbacks()
  85         { return CCallbackMgr::Instance().mEventCallbacks.size() > 0; };
  86
  87 private:
  88
  89         void consume (SecurityServer::NotificationDomain domain, SecurityServer::NotificationEvent whichEvent,
  90                                   const CssmData &data);
  91
  92         static void AlertClients(const list<CallbackInfo> &eventCallbacks, SecKeychainEvent inEvent, pid_t inPid,
  93                                                          const Keychain& inKeychain, const Item &inItem);
  94
  95         list<CallbackInfo>              mEventCallbacks;
  96 };
  97
  98 } // end namespace KeychainCore
  99
 100 } // end namespace Security
 101
 102 #endif // !_SECURITY_CCALLBACKMGR_H_