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SecItemShimProxy.cpp
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130 lines (109 loc) · 4.9 KB
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/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "SecItemShimProxy.h"
#if ENABLE(SEC_ITEM_SHIM)
#include "Connection.h"
#include "Logging.h"
#include "SecItemRequestData.h"
#include "SecItemResponseData.h"
#include "SecItemShimProxyMessages.h"
#include <Security/SecBase.h>
#include <Security/SecItem.h>
namespace WebKit {
#define MESSAGE_CHECK_COMPLETION(assertion, connection, completion) MESSAGE_CHECK_COMPLETION_BASE(assertion, &connection, completion)
// We received these dictionaries over IPC so they shouldn't contain any "in-memory" objects (rdar://104253249).
static bool dictionaryContainsInMemoryObject(CFDictionaryRef dictionary)
{
if (!dictionary)
return false;
// kSecUseItemList is deprecated on iOS 12+.
ALLOW_DEPRECATED_DECLARATIONS_BEGIN
if (CFDictionaryContainsKey(dictionary, kSecUseItemList))
return true;
ALLOW_DEPRECATED_DECLARATIONS_END
return CFDictionaryContainsKey(dictionary, kSecValueRef);
}
SecItemShimProxy& SecItemShimProxy::singleton()
{
static SecItemShimProxy* proxy;
static dispatch_once_t once;
dispatch_once(&once, ^{
proxy = new SecItemShimProxy;
});
return *proxy;
}
SecItemShimProxy::SecItemShimProxy()
: m_queue(WorkQueue::create("com.apple.WebKit.SecItemShimProxy"_s))
{
}
SecItemShimProxy::~SecItemShimProxy()
{
ASSERT_NOT_REACHED();
}
void SecItemShimProxy::initializeConnection(IPC::Connection& connection)
{
connection.addMessageReceiver(m_queue.get(), *this, Messages::SecItemShimProxy::messageReceiverName());
}
void SecItemShimProxy::secItemRequest(IPC::Connection& connection, const SecItemRequestData& request, CompletionHandler<void(std::optional<SecItemResponseData>&&)>&& response)
{
MESSAGE_CHECK_COMPLETION(!dictionaryContainsInMemoryObject(request.query()), connection, response(SecItemResponseData { errSecParam, nullptr }));
MESSAGE_CHECK_COMPLETION(!dictionaryContainsInMemoryObject(request.attributesToMatch()), connection, response(SecItemResponseData { errSecParam, nullptr }));
switch (request.type()) {
case SecItemRequestData::Type::Invalid:
LOG_ERROR("SecItemShimProxy::secItemRequest received an invalid data request. Please file a bug if you know how you caused this.");
response(SecItemResponseData { errSecParam, nullptr });
break;
case SecItemRequestData::Type::CopyMatching: {
CFTypeRef resultObject = nullptr;
OSStatus resultCode = SecItemCopyMatching(request.query(), &resultObject);
response(SecItemResponseData { resultCode, adoptCF(resultObject) });
break;
}
case SecItemRequestData::Type::Add: {
// Return value of SecItemAdd is often ignored. Even if it isn't, we don't have the ability to
// serialize SecKeychainItemRef.
OSStatus resultCode = SecItemAdd(request.query(), nullptr);
response(SecItemResponseData { resultCode, nullptr });
break;
}
case SecItemRequestData::Type::Update: {
OSStatus resultCode = SecItemUpdate(request.query(), request.attributesToMatch());
response(SecItemResponseData { resultCode, nullptr });
break;
}
case SecItemRequestData::Type::Delete: {
OSStatus resultCode = SecItemDelete(request.query());
response(SecItemResponseData { resultCode, nullptr });
break;
}
}
}
void SecItemShimProxy::secItemRequestSync(IPC::Connection& connection, const SecItemRequestData& data, CompletionHandler<void(std::optional<SecItemResponseData>&&)>&& completionHandler)
{
secItemRequest(connection, data, WTFMove(completionHandler));
}
} // namespace WebKit
#endif // ENABLE(SEC_ITEM_SHIM)