OSX/sec/SOSCircle/SecureObjectSync/SOSPeer.h

   1 /*
   2  * Copyright (c) 2012-2014 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
  24
  25 /*!
  26  @header SOSPeer
  27  The functions provided in SOSPeer provide an interface to a
  28  secure object syncing peer in a circle
  29  */
  30
  31 #ifndef _SOSPEER_H_
  32 #define _SOSPEER_H_
  33
  34 #include <Security/SecureObjectSync/SOSCoder.h>
  35 #include <Security/SecureObjectSync/SOSDataSource.h> // For SOSEngineRef
  36 #include <utilities/SecAKSWrappers.h> // TODO: Layer violation -> move to datasource or make schema based
  37
  38 __BEGIN_DECLS
  39
  40 // PeerMetaRef are used to paas info about peers between accout and engine as well as to serialize in the peerstate.
  41 typedef CFTypeRef SOSPeerMetaRef;
  42
  43
  44 // peerID is not optional everything else is.
  45 SOSPeerMetaRef SOSPeerMetaCreateWithComponents(CFStringRef peerID, CFSetRef views, CFDataRef keybag);
  46
  47 // peerID and state are both required.  State is excepted to contain the set of views for this peer.
  48 SOSPeerMetaRef SOSPeerMetaCreateWithState(CFStringRef peerID, CFDictionaryRef state);
  49
  50 CFTypeRef SOSPeerOrStateSetViewsKeyBagAndCreateCopy(CFTypeRef peerOrState, CFSetRef views, CFDataRef keyBag);
  51 CFTypeRef SOSPeerOrStateSetViewsAndCopyState(CFTypeRef peerOrState, CFSetRef views);
  52 bool SOSPeerMapEntryIsBackup(const void *mapEntry);
  53
  54 // peerID will always be returned, views, and publicKey might not be.
  55 CFStringRef SOSPeerMetaGetComponents(SOSPeerMetaRef peerMeta, CFSetRef *views, CFDataRef *keybag, CFErrorRef *error);
  56
  57
  58 typedef struct __OpaqueSOSPeer *SOSPeerRef;
  59
  60 CFTypeID SOSPeerGetTypeID(void);
  61
  62 void SOSPeerMarkDigestsInUse(SOSPeerRef peer, struct SOSDigestVector *mdInUse);
  63 void SOSPeerAddManifestsInUse(SOSPeerRef peer, CFMutableDictionaryRef mfc);
  64 bool SOSPeerDidReceiveRemovalsAndAdditions(SOSPeerRef peer, SOSManifestRef absentFromRemote, SOSManifestRef additionsFromRemote,
  65                                            SOSManifestRef unwantedFromRemote, SOSManifestRef local, CFErrorRef *error);
  66 bool SOSPeerDataSourceWillCommit(SOSPeerRef peer, SOSDataSourceTransactionSource source, SOSManifestRef removals, SOSManifestRef additions, CFErrorRef *error);
  67 bool SOSPeerDataSourceWillChange(SOSPeerRef peer, SOSDataSourceRef dataSource, SOSDataSourceTransactionSource source, CFArrayRef changes, CFErrorRef *error);
  68 bool SOSPeerWriteAddEvent(FILE *journalFile, keybag_handle_t kbhandle, SOSDataSourceRef dataSource, SOSObjectRef object, CFErrorRef *error);
  69
  70 // Create a peer from an archived state.
  71 SOSPeerRef SOSPeerCreateWithState(SOSEngineRef engine, CFStringRef peer_id, CFDictionaryRef state, CFErrorRef *error);
  72
  73 // Return encoded peerState dictionary
  74 CFDictionaryRef SOSPeerCopyState(SOSPeerRef peer, CFErrorRef *error);
  75
  76 // (Re)initialize from a peerState dictionary
  77 bool SOSPeerSetState(SOSPeerRef peer, SOSEngineRef engine, CFDictionaryRef state, CFErrorRef *error);
  78
  79 //
  80 //
  81 //
  82
  83 CFIndex SOSPeerGetVersion(SOSPeerRef peer);
  84 CFStringRef SOSPeerGetID(SOSPeerRef peer);
  85 bool SOSPeersEqual(SOSPeerRef peerA, SOSPeerRef peerB);
  86
  87 uint64_t SOSPeerNextSequenceNumber(SOSPeerRef peer);
  88 uint64_t SOSPeerGetMessageVersion(SOSPeerRef peer);
  89
  90 //
  91 // MARK: State tracking helpers
  92 //
  93
  94 // Return true if the peer needs saving.
  95 bool SOSPeerDidConnect(SOSPeerRef peer);
  96 bool SOSPeerMustSendMessage(SOSPeerRef peer);
  97 void SOSPeerSetMustSendMessage(SOSPeerRef peer, bool must);
  98
  99 bool SOSPeerSendObjects(SOSPeerRef peer);
 100 void SOSPeerSetSendObjects(SOSPeerRef peer, bool sendObjects);
 101
 102 SOSManifestRef SOSPeerGetProposedManifest(SOSPeerRef peer);
 103 SOSManifestRef SOSPeerGetConfirmedManifest(SOSPeerRef peer);
 104 void SOSPeerSetConfirmedManifest(SOSPeerRef peer, SOSManifestRef confirmed);
 105 void SOSPeerAddProposedManifest(SOSPeerRef peer, SOSManifestRef pending);
 106 void SOSPeerSetProposedManifest(SOSPeerRef peer, SOSManifestRef pending);
 107 void SOSPeerAddLocalManifest(SOSPeerRef peer, SOSManifestRef local);
 108 SOSManifestRef SOSPeerGetPendingObjects(SOSPeerRef peer);
 109 void SOSPeerSetPendingObjects(SOSPeerRef peer, SOSManifestRef pendingObjects);
 110 SOSManifestRef SOSPeerGetUnwantedManifest(SOSPeerRef peer);
 111 void SOSPeerSetUnwantedManifest(SOSPeerRef peer, SOSManifestRef unwantedManifest);
 112
 113 SOSManifestRef SOSPeerCopyManifestForDigest(SOSPeerRef peer, CFDataRef digest);
 114
 115 CFSetRef SOSPeerGetViewNameSet(SOSPeerRef peer);
 116 void SOSPeerSetViewNameSet(SOSPeerRef peer, CFSetRef views);
 117
 118 CFDataRef SOSPeerGetKeyBag(SOSPeerRef peer);
 119 void SOSPeerKeyBagDidChange(SOSPeerRef peer);
 120 void SOSPeerSetKeyBag(SOSPeerRef peer, CFDataRef keyBag);
 121 // Write a reset event to the journal if mustSendMessage is true.
 122 bool SOSPeerWritePendingReset(SOSPeerRef peer, CFErrorRef *error);
 123
 124 //
 125 // MARK: Backup Peers
 126 //
 127
 128 // TODO: Layer violation -> move to datasource or make schema based
 129 bool SOSPeerAppendToJournal(SOSPeerRef peer, CFErrorRef *error, void(^with)(FILE *journalFile, keybag_handle_t kbhandle));
 130 int SOSPeerHandoffFD(SOSPeerRef peer, CFErrorRef *error);
 131
 132 void SOSBackupPeerPostNotification(const char *reason);
 133
 134 __END_DECLS
 135
 136 #endif /* !_SOSPEER_H_ */