Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_keychain / lib / PolicyCursor.cpp

diff --git a/Security/libsecurity_keychain/lib/PolicyCursor.cpp b/Security/libsecurity_keychain/lib/PolicyCursor.cpp
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+/*
+ * Copyright (c) 2002-2004,2011-2012,2014 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@
+ */
+
+//
+// PolicyCursor.cpp
+//
+#include <security_keychain/PolicyCursor.h>
+#include <security_keychain/Policies.h>
+#include <Security/oidsalg.h>
+#include <security_cdsa_client/tpclient.h>
+
+using namespace KeychainCore;
+using namespace CssmClient;
+
+
+//
+// This preliminary implementation bypasses MDS and uses
+// a fixed set of policies known to exist in the one known TP.
+//
+struct TheOneTP : public TP {
+       TheOneTP() : TP(gGuidAppleX509TP) { }
+};
+
+static ModuleNexus<TheOneTP> theOneTP;
+static const CssmOid *theOidList[] = {
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_ISIGN),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_X509_BASIC),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_SSL),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_SMIME),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_EAP),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_SW_UPDATE_SIGNING),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_IP_SEC),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_ICHAT),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_RESOURCE_SIGN),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_PKINIT_CLIENT),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_PKINIT_SERVER),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_CODE_SIGNING),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_PACKAGE_SIGNING),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_REVOCATION_CRL),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_REVOCATION_OCSP),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_MACAPPSTORE_RECEIPT),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_APPLEID_SHARING),
+       static_cast<const CssmOid *>(&CSSMOID_APPLE_TP_TIMESTAMPING),
+       NULL    // sentinel
+};
+
+
+//
+// Canonical Construction
+//
+PolicyCursor::PolicyCursor(const CSSM_OID* oid, const CSSM_DATA* value)
+    : mOid(Allocator::standard()), mOidGiven(false), mMutex(Mutex::recursive)
+{
+    if (oid) {
+        mOid = CssmOid::required(oid);
+        mOidGiven = true;
+    }
+    mSearchPos = 0;
+}
+
+
+//
+// Destroy
+//
+PolicyCursor::~PolicyCursor() throw()
+{
+}
+
+
+//
+// Crank the iterator
+//
+bool PolicyCursor::next(SecPointer<Policy> &policy)
+{
+       StLock<Mutex>_(mMutex);
+
+    while (theOidList[mSearchPos]) {
+        if (mOidGiven && mOid != *theOidList[mSearchPos]) {
+            mSearchPos++;
+            continue;  // no oid match
+        }
+        // ignoring mValue - not used by current TP
+        policy = new Policy(theOneTP(), *theOidList[mSearchPos]);
+        mSearchPos++;  // advance cursor
+        return true;   // return next match
+    }
+    return false;      // end of table, no more matches
+}
+
+//
+// Return a new policy instance for an OID, outside of cursor iteration
+//
+void PolicyCursor::policy(const CSSM_OID* oid, SecPointer<Policy> &policy)
+{
+       const CssmOid *policyOid = static_cast<const CssmOid *>(oid);
+       policy = new Policy(theOneTP(), *policyOid);
+}
+