1  /*
 2   * Copyright (c) 2000-2004,2011,2014 Apple 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   * KCEventNotifier.cpp -- OS X CF Notifier for Keychain Events
24   */
25  
26  #include <securityd_client/ssclient.h>
27  #include "KCEventNotifier.h"
28  #include "KCExceptions.h"
29  #include "Keychains.h"
30  
31  using namespace KeychainCore;
32  
33  void KCEventNotifier::PostKeychainEvent(SecKeychainEvent whichEvent, const Keychain &keychain, const Item &kcItem)
34  {
35  	DLDbIdentifier dlDbIdentifier;
36  	PrimaryKey primaryKey;
37  
38  	if (keychain)
39  		dlDbIdentifier = keychain->dlDbIdentifier();
40  
41      if (kcItem)
42  		primaryKey = kcItem->primaryKey();
43  
44  	PostKeychainEvent(whichEvent, dlDbIdentifier, primaryKey);
45  }
46  
47  
48  void KCEventNotifier::PostKeychainEvent(SecKeychainEvent whichEvent,
49  										const DLDbIdentifier &dlDbIdentifier, 
50  										const PrimaryKey &primaryKey)
51  {
52  	NameValueDictionary nvd;
53  
54  	Endian<pid_t> thePid = getpid();
55  	nvd.Insert (new NameValuePair (PID_KEY, CssmData (reinterpret_cast<void*>(&thePid), sizeof (pid_t))));
56  
57  	if (dlDbIdentifier)
58  	{
59  		NameValueDictionary::MakeNameValueDictionaryFromDLDbIdentifier (dlDbIdentifier, nvd);
60  	}
61  
62  	CssmData* pKey = primaryKey;
63  	
64      if (primaryKey)
65      {
66  		nvd.Insert (new NameValuePair (ITEM_KEY, *pKey));
67      }
68  
69  	// flatten the dictionary
70  	CssmData data;
71  	nvd.Export (data);
72  
73      /* enforce a maximum size of 16k for notifications */
74      if (data.length() <= 16384) {
75          SecurityServer::ClientSession cs (Allocator::standard(), Allocator::standard());
76          cs.postNotification (SecurityServer::kNotificationDomainDatabase, whichEvent, data);
77  
78          secinfo("kcnotify", "KCEventNotifier::PostKeychainEvent posted event %u", (unsigned int) whichEvent);
79      }
80  
81  	free (data.data ());
82  }