acl_password.cpp   [plain text]

/*
 * Copyright (c) 2000-2004 Apple Computer, Inc. All Rights Reserved.
 * 
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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
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 */


//
// acl_password - password-based ACL subject types
//
#ifdef __MWERKS__
#define _CPP_ACL_PASSWORD
#endif

#include <security_cdsa_utilities/acl_password.h>
#include <security_utilities/debugging.h>
#include <security_utilities/endian.h>
#include <algorithm>


//
// Construct a password ACL subject
//
PasswordAclSubject::PasswordAclSubject(Allocator &alloc, const CssmData &password)
    : SimpleAclSubject(CSSM_ACL_SUBJECT_TYPE_PASSWORD, CSSM_SAMPLE_TYPE_PASSWORD),
    allocator(alloc), mPassword(alloc, password)
{ }

PasswordAclSubject::PasswordAclSubject(Allocator &alloc, CssmManagedData &password)
    : SimpleAclSubject(CSSM_ACL_SUBJECT_TYPE_PASSWORD, CSSM_SAMPLE_TYPE_PASSWORD),
    allocator(alloc), mPassword(alloc, password)
{ }


//
// Validate a credential set against this subject
//
bool PasswordAclSubject::validate(const AclValidationContext &context,
    const TypedList &sample) const
{
	if (sample[1].type() != CSSM_LIST_ELEMENT_DATUM)
		CssmError::throwMe(CSSM_ERRCODE_INVALID_SAMPLE_VALUE);
    const CssmData &password = sample[1];
    return password == mPassword;
}


//
// Make a copy of this subject in CSSM_LIST form
//
CssmList PasswordAclSubject::toList(Allocator &alloc) const
{
    // the password itself is private and not exported to CSSM
	return TypedList(alloc, CSSM_ACL_SUBJECT_TYPE_PASSWORD);
}


//
// Create a PasswordAclSubject
//
PasswordAclSubject *PasswordAclSubject::Maker::make(const TypedList &list) const
{
	ListElement *password;
	crack(list, 1, &password, CSSM_LIST_ELEMENT_DATUM);
	return new PasswordAclSubject(Allocator::standard(Allocator::sensitive), *password);
}

PasswordAclSubject *PasswordAclSubject::Maker::make(Version, Reader &pub, Reader &priv) const
{
    Allocator &alloc = Allocator::standard(Allocator::sensitive);
	const void *data; uint32 length; priv.countedData(data, length);
	return new PasswordAclSubject(alloc, CssmAutoData(alloc, data, length));
}


//
// Export the subject to a memory blob
//
void PasswordAclSubject::exportBlob(Writer::Counter &pub, Writer::Counter &priv)
{
	priv.countedData(mPassword);
}

void PasswordAclSubject::exportBlob(Writer &pub, Writer &priv)
{
	priv.countedData(mPassword);
}


#ifdef DEBUGDUMP

void PasswordAclSubject::debugDump() const
{
	Debug::dump("Password ");
	Debug::dumpData(mPassword.data(), mPassword.length());
}

#endif //DEBUGDUMP