OSX/sec/SOSCircle/SecureObjectSync/SOSTransport.m

   1
   2 #include <Security/SecureObjectSync/SOSInternal.h>
   3 #include <Security/SecureObjectSync/SOSKVSKeys.h>
   4 #include <Security/SecureObjectSync/SOSAccountPriv.h>
   5 #include <Security/SecureObjectSync/SOSTransport.h>
   6 #include <Security/SecureObjectSync/SOSTransportKeyParameter.h>
   7 #include <Security/SecureObjectSync/SOSTransportCircleKVS.h>
   8 #include <Security/SecureObjectSync/SOSTransportMessageKVS.h>
   9 #include <Security/SecureObjectSync/SOSTransportMessageIDS.h>
  10 #include <Security/SecureObjectSync/SOSTransportMessage.h>
  11 #include <Security/SecureObjectSync/SOSRing.h>
  12
  13 #include <SOSCloudKeychainClient.h>
  14 #include <utilities/debugging.h>
  15 #include <utilities/SecCFWrappers.h>
  16 #include <CoreFoundation/CFBase.h>
  17
  18 CFStringRef kKeyParameter = CFSTR("KeyParameter");
  19 CFStringRef kCircle = CFSTR("Circle");
  20 CFStringRef kMessage = CFSTR("Message");
  21 CFStringRef kAlwaysKeys = CFSTR("AlwaysKeys");
  22 CFStringRef kFirstUnlocked = CFSTR("FirstUnlockKeys");
  23 CFStringRef kUnlocked = CFSTR("UnlockedKeys");
  24 extern CFStringRef kSOSAccountDebugScope;
  25
  26 #define DATE_LENGTH 18
  27
  28 CFStringRef SOSInterestListCopyDescription(CFArrayRef interests)
  29 {
  30     CFMutableStringRef description = CFStringCreateMutable(kCFAllocatorDefault, 0);
  31     CFStringAppendFormat(description, NULL, CFSTR("<Interest: "));
  32
  33     if (interests) {
  34         CFArrayForEach(interests, ^(const void* string) {
  35             if (isString(string))
  36
  37                 CFStringAppendFormat(description, NULL, CFSTR(" '%@'"), string);
  38         });
  39     }
  40     CFStringAppend(description, CFSTR(">"));
  41
  42     return description;
  43 }
  44
  45
  46 //
  47 // MARK: Key Interest Processing
  48 //
  49
  50 CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportMessages, sTransportMessages,  ^{
  51     *sTransportMessages = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
  52 });
  53
  54 CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportKeyParameters, sTransportKeyParameters,  ^{
  55     *sTransportKeyParameters = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
  56 });
  57
  58 CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportCircles, sTransportCircles,  ^{
  59     *sTransportCircles = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
  60 });
  61
  62
  63 void SOSRegisterTransportMessage(SOSMessage* additional) {
  64     if(additional != nil)
  65         CFArrayAppendValue(SOSGetTransportMessages(), (__bridge CFTypeRef)(additional));
  66 }
  67
  68 void SOSUnregisterTransportMessage(SOSMessage* removal) {
  69     CFArrayRemoveAllValue(SOSGetTransportMessages(), (__bridge CFTypeRef)(removal));
  70 }
  71
  72 void SOSUnregisterAllTransportMessages() {
  73     CFArrayRemoveAllValues(SOSGetTransportMessages());
  74 }
  75
  76 void SOSRegisterTransportCircle(SOSCircleStorageTransport* additional) {
  77     if(additional != nil)
  78         CFArrayAppendValue(SOSGetTransportCircles(), (__bridge CFTypeRef)(additional));
  79 }
  80
  81 void SOSUnregisterTransportCircle(SOSCircleStorageTransport* removal) {
  82     CFArrayRemoveAllValue(SOSGetTransportCircles(), (__bridge CFTypeRef)removal);
  83 }
  84
  85 void SOSUnregisterAllTransportCircles() {
  86     CFArrayRemoveAllValues(SOSGetTransportCircles());
  87 }
  88
  89 void SOSRegisterTransportKeyParameter(CKKeyParameter* additional) {
  90     if(additional != nil)
  91         CFArrayAppendValue(SOSGetTransportKeyParameters(), (__bridge CFTypeRef)(additional));
  92 }
  93
  94 void SOSUnregisterTransportKeyParameter(CKKeyParameter* removal) {
  95     CFArrayRemoveAllValue(SOSGetTransportKeyParameters(), (__bridge CFTypeRef)(removal));
  96 }
  97
  98 void SOSUnregisterAllTransportKeyParameters() {
  99     CFArrayRemoveAllValues(SOSGetTransportKeyParameters());
 100 }
 101
 102 //
 103 // Should we be dispatching back to our queue to handle later
 104 //
 105 void SOSUpdateKeyInterest(SOSAccount* account)
 106 {
 107     CFMutableArrayRef alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 108     CFMutableArrayRef afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 109     CFMutableArrayRef whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 110     CFMutableDictionaryRef keyDict = CFDictionaryCreateMutableForCFTypes (kCFAllocatorDefault);
 111
 112     NSMutableArray *temp = (__bridge NSMutableArray *)(SOSGetTransportKeyParameters());
 113
 114     [temp enumerateObjectsUsingBlock:^(CKKeyParameter *value, NSUInteger idx, BOOL * _Nonnull stop) {
 115         CKKeyParameter* tKP = (CKKeyParameter*) value;
 116         if ([tKP SOSTransportKeyParameterGetAccount:tKP] == account && [tKP SOSTransportKeyParameterGetTransportType:tKP err:NULL] == kKVS) {
 117             CKKeyParameter* tkvs = (CKKeyParameter*) value;
 118             CFErrorRef localError = NULL;
 119
 120             if (![tkvs SOSTransportKeyParameterKVSAppendKeyInterests:tkvs ak:alwaysKeys firstUnLock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]) {
 121                 secerror("Error getting key parameters interests %@", localError);
 122             }
 123             CFReleaseNull(localError);
 124         }
 125
 126     }];
 127
 128     CFMutableDictionaryRef keyParamsDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 129     CFDictionarySetValue(keyParamsDict, kAlwaysKeys, alwaysKeys);
 130     CFDictionarySetValue(keyParamsDict, kFirstUnlocked, afterFirstUnlockKeys);
 131     CFDictionarySetValue(keyParamsDict, kUnlocked, whenUnlockedKeys);
 132     CFDictionarySetValue(keyDict, kKeyParameter, keyParamsDict);
 133
 134     CFReleaseNull(alwaysKeys);
 135     CFReleaseNull(afterFirstUnlockKeys);
 136     CFReleaseNull(whenUnlockedKeys);
 137     alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 138     afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 139     whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 140
 141     CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
 142         SOSKVSCircleStorageTransport *transport = (__bridge SOSKVSCircleStorageTransport*)value;
 143         if ( [[transport getAccount] isEqual: account] ) {
 144             SOSKVSCircleStorageTransport* tkvs = (__bridge SOSKVSCircleStorageTransport*) value;
 145             CFErrorRef localError = NULL;
 146
 147             if(! [tkvs kvsAppendKeyInterest:alwaysKeys firstUnlock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]){
 148                 secerror("Error getting circle interests %@", localError);
 149             }
 150             if(![tkvs kvsAppendRingKeyInterest:alwaysKeys firstUnlock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]){
 151                 secerror("Error getting ring interests %@", localError);
 152             }
 153             if(![tkvs kvsAppendDebugKeyInterest:alwaysKeys firstUnlock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]) {
 154                 secerror("Error getting debug key interests %@", localError);
 155             }
 156
 157             if(![tkvs kvsAppendConfigKeyInterest:alwaysKeys firstUnlock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]) {
 158                 secerror("Error getting config key interests %@", localError);
 159             }
 160             CFReleaseNull(localError);
 161         }
 162
 163     });
 164     CFMutableDictionaryRef circleDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 165     CFDictionarySetValue(circleDict, kAlwaysKeys, alwaysKeys);
 166     CFDictionarySetValue(circleDict, kFirstUnlocked, afterFirstUnlockKeys);
 167     CFDictionarySetValue(circleDict, kUnlocked, whenUnlockedKeys);
 168     CFDictionarySetValue(keyDict, kCircle, circleDict);
 169
 170     CFReleaseNull(alwaysKeys);
 171     CFReleaseNull(afterFirstUnlockKeys);
 172     CFReleaseNull(whenUnlockedKeys);
 173     alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 174     afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 175     whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 176
 177     CFArrayForEach(SOSGetTransportMessages(), ^(const void *value) {
 178         SOSMessage* transport = (__bridge SOSMessage*)value;
 179         if ([transport SOSTransportMessageGetAccount] == account && [transport SOSTransportMessageGetTransportType] == kKVS) {
 180             CFErrorRef localError = NULL;
 181             SOSMessageKVS* tks = (__bridge SOSMessageKVS*)value;
 182             if(![tks SOSTransportMessageKVSAppendKeyInterest:tks ak:alwaysKeys firstUnlock:afterFirstUnlockKeys unlocked:whenUnlockedKeys err:&localError]){
 183                 secerror("Error getting message interests %@", localError);
 184             }
 185             CFReleaseNull(localError);
 186         }
 187     });
 188
 189     CFMutableDictionaryRef messageDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 190     CFDictionarySetValue(messageDict, kAlwaysKeys, alwaysKeys);
 191     CFDictionarySetValue(messageDict, kFirstUnlocked, afterFirstUnlockKeys);
 192     CFDictionarySetValue(messageDict, kUnlocked, whenUnlockedKeys);
 193     CFDictionarySetValue(keyDict, kMessage, messageDict);
 194
 195     //
 196     // Log what we are about to do.
 197     //
 198     NSUInteger itemCount = 0;
 199     for (NSString *subsystem in @[(__bridge id)kMessage, (__bridge id)kCircle, (__bridge id)kKeyParameter]) {
 200         secnotice("key-interests", "Updating interests: %@", subsystem);
 201         for (NSString *lockState in @[(__bridge id)kAlwaysKeys, (__bridge id)kFirstUnlocked, (__bridge id)kUnlocked]) {
 202             NSArray *items = ((__bridge NSDictionary *)keyDict)[subsystem][lockState];
 203             itemCount += items.count;
 204             for (NSString *item in items) {
 205                 secnotice("key-interests", " key-intrest: %@->%@: %@", subsystem, lockState, item);
 206             }
 207         }
 208     }
 209     secnotice("key-interests", "Updating interests done: %lu", (unsigned long)itemCount);
 210
 211     CFStringRef uuid = SOSAccountCopyUUID(account);
 212     SOSCloudKeychainUpdateKeys(keyDict, uuid, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(CFDictionaryRef returnedValues, CFErrorRef error) {
 213         if (error) {
 214             secerror("Error updating keys: %@", error);
 215         }
 216     });
 217     CFReleaseNull(uuid);
 218
 219     CFReleaseNull(alwaysKeys);
 220     CFReleaseNull(afterFirstUnlockKeys);
 221     CFReleaseNull(whenUnlockedKeys);
 222     CFReleaseNull(keyParamsDict);
 223     CFReleaseNull(circleDict);
 224     CFReleaseNull(messageDict);
 225     CFReleaseNull(keyDict);
 226 }
 227
 228
 229 static void showWhatWasHandled(CFDictionaryRef updates, CFMutableArrayRef handledKeys) {
 230
 231     CFMutableStringRef updateStr = CFStringCreateMutable(kCFAllocatorDefault, 0);
 232     CFMutableStringRef handledKeysStr = CFStringCreateMutable(kCFAllocatorDefault, 0);
 233
 234     CFDictionaryForEach(updates, ^(const void *key, const void *value) {
 235         if (isString(key)) {
 236             CFStringAppendFormat(updateStr, NULL, CFSTR("%@ "), (CFStringRef)key);
 237         }
 238     });
 239     CFArrayForEach(handledKeys, ^(const void *value) {
 240         if (isString(value)) {
 241             CFStringAppendFormat(handledKeysStr, NULL, CFSTR("%@ "), (CFStringRef)value);
 242         }
 243     });
 244     secinfo("updates", "Updates [%ld]: %@", CFDictionaryGetCount(updates), updateStr);
 245     secinfo("updates", "Handled [%ld]: %@", CFArrayGetCount(handledKeys), handledKeysStr);
 246
 247     CFReleaseSafe(updateStr);
 248     CFReleaseSafe(handledKeysStr);
 249 }
 250
 251 #define KVS_STATE_INTERVAL 50
 252
 253 CF_RETURNS_RETAINED
 254 CFMutableArrayRef SOSTransportDispatchMessages(SOSAccountTransaction* txn, CFDictionaryRef updates, CFErrorRef *error){
 255     __block SOSAccount* account = txn.account;
 256
 257     CFMutableArrayRef handledKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 258     CFStringRef dsid = NULL;
 259
 260     if(CFDictionaryGetValueIfPresent(updates, kSOSKVSAccountChangedKey, (const void**)&dsid)){
 261         secnotice("accountChange", "SOSTransportDispatchMessages received kSOSKVSAccountChangedKey");
 262         // While changing accounts we may modify the key params array. To avoid stepping on ourselves we
 263         // copy the list for iteration.  Now modifying the transport outside of the list iteration.
 264         CFMutableArrayRef transportsToUse = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 265
 266         CFArrayForEach(SOSGetTransportKeyParameters(), ^(const void *value) {
 267             CKKeyParameter* transport = (__bridge CKKeyParameter*) value;
 268
 269             if(CFEqualSafe((__bridge CFTypeRef)([transport SOSTransportKeyParameterGetAccount:transport]), (__bridge CFTypeRef)(account))){
 270                 CFArrayAppendValue(transportsToUse, (__bridge const void *)(transport));
 271             }
 272         });
 273
 274         CFArrayForEach(transportsToUse, ^(const void *value) {
 275             CKKeyParameter* tempTransport = (__bridge CKKeyParameter*) value;
 276
 277             CFStringRef accountDSID = (CFStringRef)SOSAccountGetValue(account, kSOSDSIDKey, error);
 278
 279             if(accountDSID == NULL){
 280                 [tempTransport SOSTransportKeyParameterHandleNewAccount:tempTransport acct:account];
 281                 SOSAccountSetValue(account, kSOSDSIDKey, dsid, error);
 282                 secdebug("dsid", "Assigning new DSID: %@", dsid);
 283             } else if(accountDSID != NULL && CFStringCompare(accountDSID, dsid, 0) != 0 ) {
 284                 [tempTransport SOSTransportKeyParameterHandleNewAccount:tempTransport acct:account];
 285                 SOSAccountSetValue(account, kSOSDSIDKey, dsid, error);
 286                 secdebug("dsid", "Assigning new DSID: %@", dsid);
 287             } else {
 288                 secdebug("dsid", "DSIDs are the same!");
 289             }
 290         });
 291
 292         CFReleaseNull(transportsToUse);
 293
 294         CFArrayAppendValue(handledKeys, kSOSKVSAccountChangedKey);
 295     }
 296
 297
 298     // Iterate through keys in updates.  Perform circle change update.
 299     // Then instantiate circles and engines and peers for all peers that
 300     // are receiving a message in updates.
 301     CFMutableDictionaryRef circle_peer_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 302     CFMutableDictionaryRef circle_circle_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 303     CFMutableDictionaryRef circle_retirement_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 304     CFMutableDictionaryRef ring_update_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 305     CFMutableDictionaryRef debug_info_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 306     __block CFMutableDictionaryRef config_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
 307
 308     __block CFDataRef newParameters = NULL;
 309     __block bool initial_sync = false;
 310     __block bool new_account = false;
 311
 312     CFDictionaryForEach(updates, ^(const void *key, const void *value) {
 313         CFErrorRef localError = NULL;
 314         CFStringRef circle_name = NULL;
 315         CFStringRef ring_name = NULL;
 316         CFStringRef peer_info_name = NULL;
 317         CFStringRef from_name = NULL;
 318         CFStringRef to_name = NULL;
 319         CFStringRef backup_name = NULL;
 320
 321         require_quiet(isString(key), errOut);
 322         switch (SOSKVSKeyGetKeyTypeAndParse(key, &circle_name, &peer_info_name, &ring_name, &backup_name, &from_name, &to_name)) {
 323             case kCircleKey:
 324                 CFDictionarySetValue(circle_circle_messages_table, circle_name, value);
 325                 break;
 326             case kInitialSyncKey:
 327                 initial_sync = true;
 328                 break;
 329             case kParametersKey:
 330                 if (isData(value)) {
 331                     newParameters = (CFDataRef) CFRetainSafe(value);
 332                 }
 333                 break;
 334             case kMessageKey: {
 335                 CFMutableDictionaryRef circle_messages = CFDictionaryEnsureCFDictionaryAndGetCurrentValue(circle_peer_messages_table, circle_name);
 336                 CFDictionarySetValue(circle_messages, from_name, value);
 337                 break;
 338             }
 339             case kRetirementKey: {
 340                 CFMutableDictionaryRef circle_retirements = CFDictionaryEnsureCFDictionaryAndGetCurrentValue(circle_retirement_messages_table, circle_name);
 341                 CFDictionarySetValue(circle_retirements, from_name, value);
 342                 break;
 343             }
 344             case kAccountChangedKey:
 345                 new_account = true;
 346                 break;
 347             case kRingKey:
 348                 if(isString(ring_name))
 349                     CFDictionarySetValue(ring_update_message_table, ring_name, value);
 350                 break;
 351             case kDebugInfoKey:
 352                 CFDictionarySetValue(debug_info_message_table, peer_info_name, value);
 353                 break;
 354             case kOTRConfig:
 355                 if(isDictionary(value)){
 356                     config_message_table = CFRetainSafe((CFMutableDictionaryRef)(value));
 357                 }
 358                 break;
 359             case kLastCircleKey:
 360             case kLastKeyParameterKey:
 361             case kUnknownKey:
 362                 secnotice("updates", "Unknown key '%@', ignoring", key);
 363                 break;
 364         }
 365
 366     errOut:
 367         CFReleaseNull(circle_name);
 368         CFReleaseNull(from_name);
 369         CFReleaseNull(to_name);
 370         CFReleaseNull(ring_name);
 371         CFReleaseNull(peer_info_name);
 372         CFReleaseNull(backup_name);
 373
 374         if (error && *error)
 375             secerror("Peer message processing error for: %@ -> %@ (%@)", key, value, *error);
 376         if (localError)
 377             secerror("Peer message local processing error for: %@ -> %@ (%@)", key, value, localError);
 378
 379         CFReleaseNull(localError);
 380     });
 381
 382
 383     if (newParameters) {
 384         CFArrayForEach(SOSGetTransportKeyParameters(), ^(const void *value) {
 385             CKKeyParameter* tkvs = (__bridge CKKeyParameter*) value;
 386             CFErrorRef localError = NULL;
 387             if([[tkvs SOSTransportKeyParameterGetAccount:tkvs] isEqual:account]){
 388                 if(![tkvs SOSTransportKeyParameterHandleKeyParameterChanges:tkvs data:newParameters err:localError])
 389                     secerror("Transport failed to handle new key parameters: %@", localError);
 390             }
 391         });
 392         CFArrayAppendValue(handledKeys, kSOSKVSKeyParametersKey);
 393     }
 394     CFReleaseNull(newParameters);
 395
 396     if(initial_sync){
 397         CFArrayAppendValue(handledKeys, kSOSKVSInitialSyncKey);
 398     }
 399
 400     if(CFDictionaryGetCount(config_message_table)){
 401         secnotice("otrtimer","got the config table: %@", config_message_table);
 402         CFArrayAppendValue(handledKeys, kOTRConfigVersion);
 403     }
 404
 405     if(CFDictionaryGetCount(debug_info_message_table)) {
 406         /* check for a newly set circle debug scope */
 407         CFTypeRef debugScope = CFDictionaryGetValue(debug_info_message_table, kSOSAccountDebugScope);
 408         if (debugScope) {
 409             if(isString(debugScope)){
 410                 ApplyScopeListForID(debugScope, kScopeIDCircle);
 411             }else if(isDictionary(debugScope)){
 412                 ApplyScopeDictionaryForID(debugScope, kScopeIDCircle);
 413             }
 414         }
 415         CFStringRef debugInfoKey = SOSDebugInfoKeyCreateWithTypeName(kSOSAccountDebugScope);
 416         CFArrayAppendValue(handledKeys, debugInfoKey);
 417         CFReleaseNull(debugInfoKey);
 418     }
 419
 420     if(CFDictionaryGetCount(circle_retirement_messages_table)) {
 421         CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
 422             SOSKVSCircleStorageTransport* tkvs = (__bridge SOSKVSCircleStorageTransport*) value;
 423             if([[tkvs getAccount] isEqual:account]){
 424                 CFErrorRef localError = NULL;
 425                 CFDictionaryRef handledRetirementKeys = [tkvs handleRetirementMessages:circle_retirement_messages_table err:error];
 426                 if(handledRetirementKeys == NULL){
 427                     secerror("Transport failed to handle retirement messages: %@", localError);
 428                 } else {
 429                     CFDictionaryForEach(handledRetirementKeys, ^(const void *key, const void *value) {
 430                         CFStringRef circle_name = (CFStringRef)key;
 431                         CFArrayRef handledPeerIDs = (CFArrayRef)value;
 432                         CFArrayForEach(handledPeerIDs, ^(const void *value) {
 433                             CFStringRef peer_id = (CFStringRef)value;
 434                             CFStringRef keyHandled = SOSRetirementKeyCreateWithCircleNameAndPeer(circle_name, peer_id);
 435                             CFArrayAppendValue(handledKeys, keyHandled);
 436                             CFReleaseNull(keyHandled);
 437                         });
 438                     });
 439                 }
 440                 CFReleaseNull(handledRetirementKeys);
 441                 CFReleaseNull(localError);
 442             }
 443         });
 444     }
 445     if(CFDictionaryGetCount(circle_peer_messages_table)) {
 446         CFArrayForEach(SOSGetTransportMessages(), ^(const void *value) {
 447             SOSMessage* tmsg = (__bridge SOSMessage*) value;
 448             CFDictionaryRef circleToPeersHandled = NULL;
 449             CFErrorRef handleMessagesError = NULL;
 450             CFErrorRef flushError = NULL;
 451
 452             if(!([([tmsg SOSTransportMessageGetAccount]) isEqual:account])){
 453                 CFReleaseNull(flushError);
 454                 CFReleaseNull(circleToPeersHandled);
 455                 CFReleaseNull(handleMessagesError);
 456                 return;
 457             }
 458             circleToPeersHandled = [tmsg SOSTransportMessageHandlePeerMessageReturnsHandledCopy:tmsg peerMessages:circle_peer_messages_table err:&handleMessagesError];
 459             if(!circleToPeersHandled){
 460                 secnotice("msg", "No messages handled: %@", handleMessagesError);
 461                 CFReleaseNull(flushError);
 462                 CFReleaseNull(circleToPeersHandled);
 463                 CFReleaseNull(handleMessagesError);
 464                 return;
 465             }
 466             CFArrayRef handledPeers = asArray(CFDictionaryGetValue(circleToPeersHandled, [tmsg SOSTransportMessageGetCircleName]), NULL);
 467
 468             if (handledPeers) {
 469                 CFArrayForEach(handledPeers, ^(const void *value) {
 470                     CFStringRef peerID = asString(value, NULL);
 471                     if (peerID) {
 472                         CFStringRef kvsHandledKey = SOSMessageKeyCreateFromPeerToTransport(tmsg, (__bridge CFStringRef) account.peerID, peerID);
 473                         if (kvsHandledKey) {
 474                             CFArrayAppendValue(handledKeys, kvsHandledKey);
 475                         }
 476                         CFReleaseNull(kvsHandledKey);
 477                     }
 478                 });
 479             }
 480
 481             if(![tmsg SOSTransportMessageFlushChanges:tmsg err:&flushError])
 482                 secnotice("msg", "Flush failed: %@", flushError);
 483
 484             CFReleaseNull(flushError);
 485             CFReleaseNull(circleToPeersHandled);
 486             CFReleaseNull(handleMessagesError);
 487         });
 488     }
 489     if(CFDictionaryGetCount(circle_circle_messages_table)) {
 490         CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
 491             SOSKVSCircleStorageTransport* tkvs = (__bridge SOSKVSCircleStorageTransport*) value;
 492             if([[tkvs getAccount] isEqual: account]){
 493                 CFArrayRef handleCircleMessages = [tkvs handleCircleMessagesAndReturnHandledCopy:circle_circle_messages_table err:error];
 494                 CFErrorRef localError = NULL;
 495                 if(handleCircleMessages == NULL){
 496                     secerror("Transport failed to handle circle messages: %@", localError);
 497                 } else if(CFArrayGetCount(handleCircleMessages) == 0) {
 498                     if(CFDictionaryGetCount(circle_circle_messages_table) != 0) {
 499                         secerror("Transport failed to process all circle messages: (%ld/%ld) %@",
 500                                  CFArrayGetCount(handleCircleMessages),
 501                                  CFDictionaryGetCount(circle_circle_messages_table), localError);
 502                     } else {
 503                         secnotice("circle", "Transport handled no circle messages");
 504                     }
 505                 } else {
 506                     CFArrayForEach(handleCircleMessages, ^(const void *value) {
 507                         CFStringRef keyHandled = SOSCircleKeyCreateWithName((CFStringRef)value, error);
 508                         CFArrayAppendValue(handledKeys, keyHandled);
 509                         CFReleaseNull(keyHandled);
 510                     });
 511                 }
 512
 513                 CFReleaseNull(localError);
 514             }
 515
 516         });
 517     }
 518     if(CFDictionaryGetCount(ring_update_message_table)){
 519         CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
 520             SOSKVSCircleStorageTransport* tkvs = (__bridge SOSKVSCircleStorageTransport*) value;
 521             if([[tkvs getAccount] isEqual:account]){
 522                 CFErrorRef localError = NULL;
 523                 CFMutableArrayRef handledRingMessages = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
 524
 525                 CFDictionaryForEach(ring_update_message_table, ^(const void *key, const void *value) {
 526                     CFDataRef ringData = asData(value, NULL);
 527                     SOSRingRef ring = SOSRingCreateFromData(error, ringData);
 528
 529                     if(SOSAccountUpdateRingFromRemote(account, ring, error)){
 530                         CFArrayAppendValue(handledRingMessages, key);
 531                     }
 532                     CFReleaseNull(ring);
 533                 });
 534                 if(CFArrayGetCount(handledRingMessages) == 0){
 535                     secerror("Transport failed to handle ring messages: %@", localError);
 536                 } else {
 537                     CFArrayForEach(handledRingMessages, ^(const void *value) {
 538                         CFStringRef ring_name = (CFStringRef)value;
 539                         CFStringRef keyHandled = SOSRingKeyCreateWithRingName(ring_name);
 540                         CFArrayAppendValue(handledKeys, keyHandled);
 541                         CFReleaseNull(keyHandled);
 542                     });
 543                 }
 544                 CFReleaseNull(handledRingMessages);
 545                 CFReleaseNull(localError);
 546             }
 547         });
 548     }
 549
 550     CFReleaseNull(circle_retirement_messages_table);
 551     CFReleaseNull(circle_circle_messages_table);
 552     CFReleaseNull(circle_peer_messages_table);
 553     CFReleaseNull(debug_info_message_table);
 554     CFReleaseNull(ring_update_message_table);
 555     CFReleaseNull(debug_info_message_table);
 556     CFReleaseNull(config_message_table);
 557     showWhatWasHandled(updates, handledKeys);
 558
 559     return handledKeys;
 560 }
 561