SOSTransport.c   [plain text]

#include <Security/SecureObjectSync/SOSInternal.h>
#include <Security/SecureObjectSync/SOSKVSKeys.h>
#include <Security/SecureObjectSync/SOSAccountPriv.h>
#include <Security/SecureObjectSync/SOSTransport.h>
#include <Security/SecureObjectSync/SOSTransportKeyParameterKVS.h>
#include <Security/SecureObjectSync/SOSTransportCircleKVS.h>
#include <Security/SecureObjectSync/SOSTransportMessageKVS.h>
#include <Security/SecureObjectSync/SOSTransportMessageIDS.h>
#include <Security/SecureObjectSync/SOSTransportMessage.h>
#include <Security/SecureObjectSync/SOSRing.h>

#include <SOSCloudKeychainClient.h>
#include <utilities/debugging.h>
#include <utilities/SecCFWrappers.h>
#include <CoreFoundation/CFBase.h>

CFStringRef kKeyParameter = CFSTR("KeyParameter");
CFStringRef kCircle = CFSTR("Circle");
CFStringRef kMessage = CFSTR("Message");
CFStringRef kAlwaysKeys = CFSTR("AlwaysKeys");
CFStringRef kFirstUnlocked = CFSTR("FirstUnlockKeys");
CFStringRef kUnlocked = CFSTR("UnlockedKeys");
extern CFStringRef kSOSAccountDebugScope;

#define DATE_LENGTH 18

CFStringRef SOSInterestListCopyDescription(CFArrayRef interests)
{
    CFMutableStringRef description = CFStringCreateMutable(kCFAllocatorDefault, 0);
    CFStringAppendFormat(description, NULL, CFSTR("<Interest: "));
    
    if (interests) {
        CFArrayForEach(interests, ^(const void* string) {
            if (isString(string))
             
                CFStringAppendFormat(description, NULL, CFSTR(" '%@'"), string);
        });
    }
    CFStringAppend(description, CFSTR(">"));

    return description;
}


//
// MARK: Key Interest Processing
//

CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportMessages, sTransportMessages,  ^{
    *sTransportMessages = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
});

CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportKeyParameters, sTransportKeyParameters,  ^{
    *sTransportKeyParameters = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
});

CFGiblisGetSingleton(CFMutableArrayRef, SOSGetTransportCircles, sTransportCircles,  ^{
    *sTransportCircles = CFArrayCreateMutable(kCFAllocatorDefault, 0, NULL);
});


void SOSRegisterTransportMessage(SOSTransportMessageRef additional) {
    CFArrayAppendValue(SOSGetTransportMessages(), additional);
}

void SOSUnregisterTransportMessage(SOSTransportMessageRef removal) {
    CFArrayRemoveAllValue(SOSGetTransportMessages(), removal);
}

void SOSUnregisterAllTransportMessages() {
    CFArrayRemoveAllValues(SOSGetTransportMessages());
}

void SOSRegisterTransportCircle(SOSTransportCircleRef additional) {
    CFArrayAppendValue(SOSGetTransportCircles(), additional);
}

void SOSUnregisterTransportCircle(SOSTransportCircleRef removal) {
    CFArrayRemoveAllValue(SOSGetTransportCircles(), removal);
}

void SOSUnregisterAllTransportCircles() {
    CFArrayRemoveAllValues(SOSGetTransportCircles());
}

void SOSRegisterTransportKeyParameter(SOSTransportKeyParameterRef additional) {
    CFArrayAppendValue(SOSGetTransportKeyParameters(), additional);
}

void SOSUnregisterTransportKeyParameter(SOSTransportKeyParameterRef removal) {
    CFArrayRemoveAllValue(SOSGetTransportKeyParameters(), removal);
}

void SOSUnregisterAllTransportKeyParameters() {
    CFArrayRemoveAllValues(SOSGetTransportKeyParameters());
}

//
// Should we be dispatching back to our queue to handle later
//
void SOSUpdateKeyInterest(void)
{
    CFMutableArrayRef alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableArrayRef afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableArrayRef whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef keyDict = CFDictionaryCreateMutableForCFTypes (kCFAllocatorDefault);
    
    CFArrayForEach(SOSGetTransportKeyParameters(), ^(const void *value) {
        SOSTransportKeyParameterRef tKP = (SOSTransportKeyParameterRef) value;
        if (SOSTransportKeyParameterGetTransportType(tKP, NULL) == kKVS) {
            SOSTransportKeyParameterKVSRef tkvs = (SOSTransportKeyParameterKVSRef) value;
            CFErrorRef localError = NULL;
        
            if (!SOSTransportKeyParameterKVSAppendKeyInterests(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)) {
                secerror("Error getting key parameters interests %@", localError);
            }
            CFReleaseNull(localError);
        }
    });
    CFMutableDictionaryRef keyParamsDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFDictionarySetValue(keyParamsDict, kAlwaysKeys, alwaysKeys);
    CFDictionarySetValue(keyParamsDict, kFirstUnlocked, afterFirstUnlockKeys);
    CFDictionarySetValue(keyParamsDict, kUnlocked, whenUnlockedKeys);
    CFDictionarySetValue(keyDict, kKeyParameter, keyParamsDict);

    CFReleaseNull(alwaysKeys);
    CFReleaseNull(afterFirstUnlockKeys);
    CFReleaseNull(whenUnlockedKeys);
    alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    
    CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
        if (SOSTransportCircleGetTransportType((SOSTransportCircleRef)value, NULL) == kKVS) {
            SOSTransportCircleKVSRef tkvs = (SOSTransportCircleKVSRef) value;
            CFErrorRef localError = NULL;

            if(!SOSTransportCircleKVSAppendKeyInterest(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)){
                secerror("Error getting circle interests %@", localError);
            }
            if(!SOSTransportCircleKVSAppendPeerInfoKeyInterest(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)){
                secerror("Error getting peer info interests %@", localError);
            }
#if !ENABLE_V2_BACKUP
            if(!SOSTransportCircleKVSAppendRingKeyInterest(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)){
                secerror("Error getting ring interests %@", localError);
            }
#endif
            if(!SOSTransportCircleKVSAppendDebugKeyInterest(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)){
                secerror("Error getting debug key interests %@", localError);
            }
            CFReleaseNull(localError);
        }
        
    });
    CFMutableDictionaryRef circleDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFDictionarySetValue(circleDict, kAlwaysKeys, alwaysKeys);
    CFDictionarySetValue(circleDict, kFirstUnlocked, afterFirstUnlockKeys);
    CFDictionarySetValue(circleDict, kUnlocked, whenUnlockedKeys);
    CFDictionarySetValue(keyDict, kCircle, circleDict);
    
    CFReleaseNull(alwaysKeys);
    CFReleaseNull(afterFirstUnlockKeys);
    CFReleaseNull(whenUnlockedKeys);
    alwaysKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    afterFirstUnlockKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    whenUnlockedKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    
    CFArrayForEach(SOSGetTransportMessages(), ^(const void *value) {
        if (SOSTransportMessageGetTransportType((SOSTransportMessageRef) value, NULL) == kKVS) {
            SOSTransportMessageKVSRef tkvs = (SOSTransportMessageKVSRef) value;
            CFErrorRef localError = NULL;
        
            if(!SOSTransportMessageKVSAppendKeyInterest(tkvs, alwaysKeys, afterFirstUnlockKeys, whenUnlockedKeys, &localError)){
                secerror("Error getting message interests %@", localError);
            }
            CFReleaseNull(localError);
        }
    });
    
    CFMutableDictionaryRef messageDict = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFDictionarySetValue(messageDict, kAlwaysKeys, alwaysKeys);
    CFDictionarySetValue(messageDict, kFirstUnlocked, afterFirstUnlockKeys);
    CFDictionarySetValue(messageDict, kUnlocked, whenUnlockedKeys);
    CFDictionarySetValue(keyDict, kMessage, messageDict);
    
    //
    // Log what we are about to do.
    //
    if (CFArrayGetCount(whenUnlockedKeys) == 0) {
        secnotice("sync", "Unlocked keys were empty!");
    }
    CFStringRef alwaysKeysDesc = SOSInterestListCopyDescription(alwaysKeys);
    CFStringRef afterFirstUnlockKeysDesc = SOSInterestListCopyDescription(afterFirstUnlockKeys);
    CFStringRef unlockedKeysDesc = SOSInterestListCopyDescription(whenUnlockedKeys);
    secdebug("sync", "Updating interest: always: %@,\nfirstUnlock: %@,\nunlockedKeys: %@",
             alwaysKeysDesc,
             afterFirstUnlockKeysDesc,
             unlockedKeysDesc);
    CFReleaseNull(alwaysKeysDesc);
    CFReleaseNull(afterFirstUnlockKeysDesc);
    CFReleaseNull(unlockedKeysDesc);

    
    //
    //
    
    SOSCloudKeychainUpdateKeys(keyDict, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(CFDictionaryRef returnedValues, CFErrorRef error) {
        if (error) {
            secerror("Error updating keys: %@", error);
        }
    });
    
    CFReleaseNull(alwaysKeys);
    CFReleaseNull(afterFirstUnlockKeys);
    CFReleaseNull(whenUnlockedKeys);
    CFReleaseNull(keyParamsDict);
    CFReleaseNull(circleDict);
    CFReleaseNull(messageDict);
    CFReleaseNull(keyDict);
}


static void showWhatWasHandled(CFDictionaryRef updates, CFMutableArrayRef handledKeys) {
    
    CFMutableStringRef updateStr = CFStringCreateMutable(kCFAllocatorDefault, 0);
    CFMutableStringRef handledKeysStr = CFStringCreateMutable(kCFAllocatorDefault, 0);
    
    CFDictionaryForEach(updates, ^(const void *key, const void *value) {
        if (isString(key)) {
            CFStringAppendFormat(updateStr, NULL, CFSTR("%@ "), (CFStringRef)key);
        }
    });
    CFArrayForEach(handledKeys, ^(const void *value) {
        if (isString(value)) {
            CFStringAppendFormat(handledKeysStr, NULL, CFSTR("%@ "), (CFStringRef)value);
        }
    });
    secinfo("updates", "Updates [%ld]: %@", CFDictionaryGetCount(updates), updateStr);
    secinfo("updates", "Handled [%ld]: %@", CFArrayGetCount(handledKeys), handledKeysStr);
    
    CFReleaseSafe(updateStr);
    CFReleaseSafe(handledKeysStr);
}

CF_RETURNS_RETAINED
CFMutableArrayRef SOSTransportDispatchMessages(SOSAccountRef account, CFDictionaryRef updates, CFErrorRef *error){
    
    CFMutableArrayRef handledKeys = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);
    
    if(CFDictionaryContainsKey(updates, kSOSKVSAccountChangedKey)){
        secnotice("accountChange", "SOSTransportDispatchMessages received kSOSKVSAccountChangedKey");
        // While changing accounts we may modify the key params array. To avoid stepping on ourselves we
        // copy the list for iteration.  Now modifying the transport outside of the list iteration.
        __block SOSTransportKeyParameterRef tempTransport = NULL;
        CFMutableArrayRef originalKeyParams = CFArrayCreateMutableCopy(kCFAllocatorDefault, CFArrayGetCount(SOSGetTransportKeyParameters()), SOSGetTransportKeyParameters());
        do{
            tempTransport = NULL;
            CFArrayForEach(originalKeyParams, ^(const void *value) {
                SOSTransportKeyParameterRef transport = (SOSTransportKeyParameterRef) value;
                if(CFEqualSafe(SOSTransportKeyParameterGetAccount(transport), account)){
                    tempTransport = transport;
                }
            });
            if(tempTransport != NULL){
                SOSTransportKeyParameterHandleNewAccount(tempTransport, account);
                CFStringRef dsid = NULL;
                if(CFDictionaryGetValueIfPresent(updates, kSOSKVSAccountChangedKey, (const void**)&dsid)){
                    if(dsid != NULL){
                        CFStringRef accountDSID = (CFStringRef)SOSAccountGetValue(account, kSOSDSIDKey, error);

                        if(accountDSID == NULL){
                            SOSAccountSetValue(account, kSOSDSIDKey, dsid, error);
                            secdebug("dsid", "Assigning new DSID: %@", dsid);
                        }
                        else if(accountDSID != NULL && CFStringCompare(accountDSID, dsid, 0) != 0 ){
                            SOSAccountSetValue(account, kSOSDSIDKey, dsid, error);
                            secdebug("dsid", "Assigning new DSID: %@", dsid);
                        }
                        else
                            secdebug("dsid", "DSIDs are the same!");
                    }
                }
                CFArrayRemoveAllValue(originalKeyParams, tempTransport);
            }
        }while(tempTransport != NULL);
        CFArrayAppendValue(handledKeys, kSOSKVSAccountChangedKey);
        CFReleaseNull(originalKeyParams);
        
    }

    
    // Iterate through keys in updates.  Perform circle change update.
    // Then instantiate circles and engines and peers for all peers that
    // are receiving a message in updates.
    CFMutableDictionaryRef circle_peer_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef circle_circle_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef circle_retirement_messages_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef ring_update_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef peer_info_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    CFMutableDictionaryRef debug_info_message_table = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
    
    __block CFDataRef newParameters = NULL;
    __block bool initial_sync = false;
    __block bool new_account = false;
    
    CFDictionaryForEach(updates, ^(const void *key, const void *value) {
        CFErrorRef localError = NULL;
        CFStringRef circle_name = NULL;
        CFStringRef ring_name = NULL;
        CFStringRef peer_info_name = NULL;
        CFStringRef from_name = NULL;
        CFStringRef to_name = NULL;
        CFStringRef backup_name = NULL;
        
        switch (SOSKVSKeyGetKeyTypeAndParse(key, &circle_name, &peer_info_name, &ring_name, &backup_name, &from_name, &to_name)) {
            case kCircleKey:
                CFDictionarySetValue(circle_circle_messages_table, circle_name, value);
                break;
            case kInitialSyncKey:
                initial_sync = true;
                break;
            case kParametersKey:
                if (isData(value)) {
                    newParameters = (CFDataRef) CFRetainSafe(value);
                }
                break;
            case kMessageKey: {
                CFMutableDictionaryRef circle_messages = CFDictionaryEnsureCFDictionaryAndGetCurrentValue(circle_peer_messages_table, circle_name);
                CFDictionarySetValue(circle_messages, from_name, value);
                break;
            }
            case kRetirementKey: {
                CFMutableDictionaryRef circle_retirements = CFDictionaryEnsureCFDictionaryAndGetCurrentValue(circle_retirement_messages_table, circle_name);
                CFDictionarySetValue(circle_retirements, from_name, value);
                break;
            }
            case kAccountChangedKey:
                new_account = true;
                break;
            case kPeerInfoKey:
                CFDictionarySetValue(peer_info_message_table, peer_info_name, value);
                break;
            case kRingKey:
                if(isString(ring_name))
                    CFDictionarySetValue(ring_update_message_table, ring_name, value);
                break;
            case kDebugInfoKey:
                CFDictionarySetValue(debug_info_message_table, peer_info_name, value);
                break;
            case kLastCircleKey:
            case kLastKeyParameterKey:
            case kUnknownKey:
                secnotice("updates", "Unknown key '%@', ignoring", key);
                break;
                
        }
        
        CFReleaseNull(circle_name);
        CFReleaseNull(from_name);
        CFReleaseNull(to_name);
        CFReleaseNull(ring_name);
        CFReleaseNull(peer_info_name);
        CFReleaseNull(backup_name);
        
        if (error && *error)
            secerror("Peer message processing error for: %@ -> %@ (%@)", key, value, *error);
        if (localError)
            secerror("Peer message local processing error for: %@ -> %@ (%@)", key, value, localError);
        
        CFReleaseNull(localError);
    });
    
    
    if (newParameters) {
        CFArrayForEach(SOSGetTransportKeyParameters(), ^(const void *value) {
            SOSTransportKeyParameterRef tkvs = (SOSTransportKeyParameterRef) value;
            CFErrorRef localError = NULL;
            if(CFEqualSafe(SOSTransportKeyParameterGetAccount(tkvs), account)){
                if(!SOSTransportKeyParameterHandleKeyParameterChanges(tkvs, newParameters, localError))
                    secerror("Transport failed to handle new key parameters: %@", localError);
            }
        });
        CFArrayAppendValue(handledKeys, kSOSKVSKeyParametersKey);
    }
    CFReleaseNull(newParameters);
    
    if(initial_sync){
        CFArrayAppendValue(handledKeys, kSOSKVSInitialSyncKey);
    }
    
    if(CFDictionaryGetCount(debug_info_message_table)) {
        /* check for a newly set circle debug scope */
        CFTypeRef debugScope = CFDictionaryGetValue(debug_info_message_table, kSOSAccountDebugScope);
        if (debugScope) {
            if(isString(debugScope)){
                ApplyScopeListForID(debugScope, kScopeIDCircle);
            }else if(isDictionary(debugScope)){
                ApplyScopeDictionaryForID(debugScope, kScopeIDCircle);
            }
        }

        CFArrayAppendValue(handledKeys, SOSDebugInfoKeyCreateWithTypeName(kSOSAccountDebugScope));
    }
    
    if(CFDictionaryGetCount(circle_retirement_messages_table)) {
        CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
            SOSTransportCircleRef tkvs = (SOSTransportCircleRef) value;
            if(CFEqualSafe(SOSTransportCircleGetAccount((SOSTransportCircleRef)value), account)){
                CFErrorRef localError = NULL;
                CFDictionaryRef handledRetirementKeys = SOSTransportCircleHandleRetirementMessages(tkvs, circle_retirement_messages_table, error);
                if(handledRetirementKeys == NULL){
                    secerror("Transport failed to handle retirement messages: %@", localError);
                } else {
                    CFDictionaryForEach(handledRetirementKeys, ^(const void *key, const void *value) {
                        CFStringRef circle_name = (CFStringRef)key;
                        CFArrayRef handledPeerIDs = (CFArrayRef)value;
                        CFArrayForEach(handledPeerIDs, ^(const void *value) {
                            CFStringRef peer_id = (CFStringRef)value;
                            CFStringRef keyHandled = SOSRetirementKeyCreateWithCircleNameAndPeer(circle_name, peer_id);
                            CFArrayAppendValue(handledKeys, keyHandled);
                            CFReleaseNull(keyHandled);
                        });
                    });
                }
                CFReleaseNull(handledRetirementKeys);
                CFReleaseNull(localError);
            }
        });
    }
    if(CFDictionaryGetCount(peer_info_message_table)){
        CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
            SOSTransportCircleRef tkvs = (SOSTransportCircleRef) value;
            if(CFEqualSafe(SOSTransportCircleGetAccount((SOSTransportCircleRef)value), account)){
                CFErrorRef localError = NULL;
                CFArrayRef handledPeerInfoMessages = SOSTransportCircleKVSHandlePeerInfoV2Messages(tkvs, peer_info_message_table, error);
                if(handledPeerInfoMessages == NULL){
                    secerror("Transport failed to handle peer info messages: %@", localError);
                } else {
                    CFArrayForEach(handledPeerInfoMessages, ^(const void *value) {
                        CFStringRef peer_id = (CFStringRef)value;
                        CFStringRef keyHandled = SOSPeerInfoV2KeyCreateWithPeerName(peer_id);
                        CFArrayAppendValue(handledKeys, keyHandled);
                        CFReleaseNull(keyHandled);
                    });
                }
                CFReleaseNull(handledPeerInfoMessages);
                CFReleaseNull(localError);
            }
        });
    }
    if(CFDictionaryGetCount(circle_peer_messages_table)) {
        CFArrayForEach(SOSGetTransportMessages(), ^(const void *value) {
            SOSTransportMessageRef tkvs = (SOSTransportMessageRef) value;
            if(SOSTransportMessageGetTransportType(tkvs, error) != kIDS){
                if(CFEqualSafe(SOSTransportMessageGetAccount((SOSTransportMessageRef)value), account)){
                    CFErrorRef handleMessagesError = NULL;
                    CFDictionaryRef handledPeers = SOSTransportMessageHandleMessages(account->kvs_message_transport, circle_peer_messages_table, &handleMessagesError);

                    if (handledPeers) {
                        // We need to look for and send responses.

                        CFErrorRef syncError = NULL;
                        if (!SOSTransportMessageSyncWithPeers((SOSTransportMessageRef)account->kvs_message_transport, handledPeers, &syncError)) {
                            secerror("Sync with peers failed: %@", syncError);
                        }

                        CFDictionaryForEach(handledPeers, ^(const void *key, const void *value) {
                            if (isString(key) && isArray(value)) {
                                CFArrayForEach(value, ^(const void *value) {
                                    if (isString(value)) {
                                        CFStringRef peerID = (CFStringRef) value;

                                        CFStringRef kvsHandledKey = SOSMessageKeyCreateFromPeerToTransport((SOSTransportMessageKVSRef)account->kvs_message_transport, peerID);
                                        CFArrayAppendValue(handledKeys, kvsHandledKey);
                                        CFReleaseSafe(kvsHandledKey);
                                    }
                                });
                            }
                        });

                        CFErrorRef flushError = NULL;
                        if (!SOSTransportMessageFlushChanges((SOSTransportMessageRef)account->kvs_message_transport, &flushError)) {
                            secerror("Flush failed: %@", flushError);
                        }
                    }
                    else {
                        secerror("Didn't handle? : %@", handleMessagesError);
                    }
                    CFReleaseNull(handledPeers);
                    CFReleaseNull(handleMessagesError);
                }
            }
        });

    }
    if(CFDictionaryGetCount(circle_circle_messages_table)) {
        CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
            SOSTransportCircleRef tkvs = (SOSTransportCircleRef) value;
            if(CFEqualSafe(SOSTransportCircleGetAccount((SOSTransportCircleRef)value), account)){
                CFArrayRef handleCircleMessages = SOSTransportCircleHandleCircleMessages(tkvs, circle_circle_messages_table, error);
                CFErrorRef localError = NULL;
                if(handleCircleMessages == NULL){
                    secerror("Transport failed to handle circle messages: %@", localError);
                } else if(CFArrayGetCount(handleCircleMessages) == 0) {
                    if(CFDictionaryGetCount(circle_circle_messages_table) != 0) {
                        secerror("Transport failed to process all circle messages: (%ld/%ld) %@",
                                 CFArrayGetCount(handleCircleMessages),
                                 CFDictionaryGetCount(circle_circle_messages_table), localError);
                    } else {
                        secnotice("circle", "Transport handled no circle messages");
                    }
                } else {
                    CFArrayForEach(handleCircleMessages, ^(const void *value) {
                        CFStringRef keyHandled = SOSCircleKeyCreateWithName((CFStringRef)value, error);
                        CFArrayAppendValue(handledKeys, keyHandled);
                        CFReleaseNull(keyHandled);
                    });
                }
    
                CFReleaseNull(localError);
                CFReleaseNull(handleCircleMessages);
            }
            
        });
    }
    if(CFDictionaryGetCount(ring_update_message_table)){
        CFArrayForEach(SOSGetTransportCircles(), ^(const void *value) {
            if(CFEqualSafe(SOSTransportCircleGetAccount((SOSTransportCircleRef)value), account)){
                CFErrorRef localError = NULL;
                CFMutableArrayRef handledRingMessages = CFArrayCreateMutableForCFTypes(kCFAllocatorDefault);

                CFDictionaryForEach(ring_update_message_table, ^(const void *key, const void *value) {
                    CFDataRef ringData = (CFDataRef)value;
                    SOSRingRef ring = SOSRingCreateFromData(error, ringData);

                    if(SOSAccountUpdateRingFromRemote(account, ring, error)){
                        CFArrayAppendValue(handledRingMessages, key);
                    }
                    CFReleaseNull(ring);
                });
                if(CFArrayGetCount(handledRingMessages) == 0){
                    secerror("Transport failed to handle ring messages: %@", localError);
                } else {
                    CFArrayForEach(handledRingMessages, ^(const void *value) {
                        CFStringRef ring_name = (CFStringRef)value;
                        CFStringRef keyHandled = SOSRingKeyCreateWithRingName(ring_name);
                        CFArrayAppendValue(handledKeys, keyHandled);
                        CFReleaseNull(keyHandled);
                    });
                }
                CFReleaseNull(handledRingMessages);
                CFReleaseNull(localError);
            }
        });
    }

    CFReleaseNull(circle_retirement_messages_table);
    CFReleaseNull(circle_circle_messages_table);
    CFReleaseNull(circle_peer_messages_table);
    CFReleaseNull(debug_info_message_table);
    CFReleaseNull(ring_update_message_table);
    CFReleaseNull(peer_info_message_table);
    CFReleaseNull(debug_info_message_table);

    showWhatWasHandled(updates, handledKeys);
    
    return handledKeys;
}