Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cdsa_utilities / lib / acl_protectedpw.cpp

diff --git a/Security/libsecurity_cdsa_utilities/lib/acl_protectedpw.cpp b/Security/libsecurity_cdsa_utilities/lib/acl_protectedpw.cpp
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+++ b/Security/libsecurity_cdsa_utilities/lib/acl_protectedpw.cpp
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+/*
+ * Copyright (c) 2000-2006,2011,2014 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@
+ */
+
+
+//
+// acl_protectedpw - protected-path password-based ACL subject types.
+//
+#include <security_cdsa_utilities/acl_protectedpw.h>
+#include <security_utilities/debugging.h>
+#include <algorithm>
+
+
+//
+// Construct a password ACL subject
+//
+ProtectedPasswordAclSubject::ProtectedPasswordAclSubject(Allocator &alloc, const CssmData &password)
+    : SimpleAclSubject(CSSM_ACL_SUBJECT_TYPE_PROTECTED_PASSWORD),
+    allocator(alloc), mPassword(alloc, password)
+{ }
+
+ProtectedPasswordAclSubject::ProtectedPasswordAclSubject(Allocator &alloc, CssmManagedData &password)
+    : SimpleAclSubject(CSSM_ACL_SUBJECT_TYPE_PROTECTED_PASSWORD),
+    allocator(alloc), mPassword(alloc, password)
+{ }
+
+
+//
+// Validate a credential set against this subject
+//
+bool ProtectedPasswordAclSubject::validate(const AclValidationContext &context,
+    const TypedList &sample) const
+{
+    if (sample.length() == 1) {
+        return true;   //@@@ validate against PP
+    } else if (sample.length() == 2 && sample[1].type() == CSSM_LIST_ELEMENT_DATUM) {
+        const CssmData &password = sample[1];
+        return password == mPassword;
+    } else
+               CssmError::throwMe(CSSM_ERRCODE_INVALID_SAMPLE_VALUE);
+}
+
+
+//
+// Make a copy of this subject in CSSM_LIST form
+//
+CssmList ProtectedPasswordAclSubject::toList(Allocator &alloc) const
+{
+    // the password itself is private and not exported to CSSM
+       return TypedList(alloc, CSSM_ACL_SUBJECT_TYPE_PROTECTED_PASSWORD);
+}
+
+
+//
+// Create a ProtectedPasswordAclSubject
+//
+ProtectedPasswordAclSubject *ProtectedPasswordAclSubject::Maker::make(const TypedList &list) const
+{
+    CssmAutoData password(Allocator::standard(Allocator::sensitive));
+    if (list.length() == 1) {
+        char pass[] = "secret";
+        CssmData password = CssmData::wrap(pass, 6);           //@@@ get password from PP
+        return new ProtectedPasswordAclSubject(Allocator::standard(Allocator::sensitive), password);
+    } else {
+        ListElement *password;
+        crack(list, 1, &password, CSSM_LIST_ELEMENT_DATUM);
+        return new ProtectedPasswordAclSubject(Allocator::standard(Allocator::sensitive), *password);
+    }
+}
+
+ProtectedPasswordAclSubject *ProtectedPasswordAclSubject::Maker::make(Version,
+       Reader &pub, Reader &priv) const
+{
+    Allocator &alloc = Allocator::standard(Allocator::sensitive);
+       const void *data; size_t length; priv.countedData(data, length);
+       return new ProtectedPasswordAclSubject(alloc, CssmAutoData(alloc, data, length));
+}
+
+
+//
+// Export the subject to a memory blob
+//
+void ProtectedPasswordAclSubject::exportBlob(Writer::Counter &pub, Writer::Counter &priv)
+{
+       priv.countedData(mPassword);
+}
+
+void ProtectedPasswordAclSubject::exportBlob(Writer &pub, Writer &priv)
+{
+       priv.countedData(mPassword);
+}
+
+
+#ifdef DEBUGDUMP
+
+void ProtectedPasswordAclSubject::debugDump() const
+{
+       Debug::dump("Protected Password ");
+       Debug::dumpData(mPassword.data(), mPassword.length());
+}
+
+#endif //DEBUGDUMP