Security-57740.51.3.tar.gz

[apple/security.git] / OSX / sec / SOSCircle / SecureObjectSync / SOSBackupInformation.c

diff --git a/OSX/sec/SOSCircle/SecureObjectSync/SOSBackupInformation.c b/OSX/sec/SOSCircle/SecureObjectSync/SOSBackupInformation.c
new file mode 100644 (file)
index 0000000..7f4e28a
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+++ b/OSX/sec/SOSCircle/SecureObjectSync/SOSBackupInformation.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2016 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+//
+//  SOSBackupInformation.c
+//  Security
+//
+
+#include "SOSBackupInformation.h"
+#include "SOSAccountPriv.h"
+#include <CoreFoundation/CFNumber.h>
+#include <utilities/SecCFWrappers.h>
+
+const CFStringRef kSOSBkpInfoStatus   = CFSTR("BkpInfoStatus");
+const CFStringRef kSOSBkpInfoBSKB   = CFSTR("BkpInfoBSKB");
+const CFStringRef kSOSBkpInfoRKBG   = CFSTR("BkpInfoRKBG");
+
+CFDictionaryRef SOSBackupInformation(SOSAccountTransactionRef txn, CFErrorRef *error) {
+    CFNumberRef status = NULL;
+    int ibkpInfoStatus;
+    __block bool havebskbcontent = false;
+    CFMutableDictionaryRef retval = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
+    require_action_quiet(txn && txn->account, errOut, ibkpInfoStatus = noTxnorAcct);
+    require_action_quiet(retval, errOut, ibkpInfoStatus = noAlloc);
+    require_action_quiet(txn, errOut, ibkpInfoStatus = noTxnorAcct);
+    SOSAccountRef account = txn->account;
+    require_action_quiet(account->user_public && account->user_public_trusted, errOut, ibkpInfoStatus = noTrustedPubKey);
+    CFMutableDictionaryRef bskbders = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
+    SOSAccountForEachRing(account, ^SOSRingRef(CFStringRef name, SOSRingRef ring) {
+        if(SOSRingGetType(ring) == kSOSRingBackup) {
+            CFDataRef bskbder = SOSRingGetPayload(ring, NULL);
+            if(bskbder) CFDictionaryAddValue(bskbders, name, bskbder);
+            havebskbcontent = true;
+        } else if(SOSRingGetType(ring) == kSOSRingRecovery) {
+            CFDataRef rkbgder = SOSRingGetPayload(ring, NULL);
+            if(rkbgder) CFDictionaryAddValue(retval, kSOSBkpInfoRKBG, rkbgder);
+        }
+        return NULL; // we're reporting -  never changing the ring
+    });
+    if(havebskbcontent) {
+        ibkpInfoStatus = noError;
+        CFDictionaryAddValue(retval, kSOSBkpInfoBSKB, bskbders);
+    } else {
+        ibkpInfoStatus = noBSKBs;
+    }
+    CFReleaseNull(bskbders);
+    
+errOut:
+    status = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &ibkpInfoStatus);
+    CFDictionaryAddValue(retval, kSOSBkpInfoStatus, status);
+    CFReleaseNull(status);
+    return retval;
+}