90edd2e867
Qualcomm devices use a special `wrappedkey` mode for FBE. This is ported from CAF https://source.codeaurora.org/quic/la/platform/system/vold/commit/?h=LA.UM.7.8.r4-01000-SDM710.0&id=9229262d893a8592f7bc1b4e8a8dab7aad8df68c, originally by folks at Mokee for vold https://mokeedev.review/c/MoKee/android_system_vold/+/34102. This patch ports the above changes to `ext4crypt`, which we can use in recovery. Note that since we do not have `fs_mgr` in the recovery, we cannot read the `wrappedkey` flag from fstab. Instead, similar to `fbe.contents`, we use a special property `fbe.data.wrappedkey` to indicate support for wrappedkey mode. Devices that need to use this should set this property to `true` to activate corresponding code. Change-Id: I79c2855d577156670b45c10c7c7b1fcd9fece8d9
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_VOLD_KEYUTIL_H
|
|
#define ANDROID_VOLD_KEYUTIL_H
|
|
|
|
#include "KeyBuffer.h"
|
|
#include "KeyStorage4.h"
|
|
#include "Keymaster4.h"
|
|
|
|
#include <string>
|
|
#include <memory>
|
|
|
|
namespace android {
|
|
namespace vold {
|
|
|
|
bool randomKey(KeyBuffer* key);
|
|
bool installKey(const KeyBuffer& key, std::string* raw_ref);
|
|
bool evictKey(const std::string& raw_ref);
|
|
bool retrieveAndInstallKey(bool create_if_absent, const KeyAuthentication& key_authentication,
|
|
const std::string& key_path, const std::string& tmp_path,
|
|
std::string* key_ref, bool wrapped_key_supported);
|
|
bool retrieveKey(bool create_if_absent, const std::string& key_path,
|
|
const std::string& tmp_path, KeyBuffer* key);
|
|
|
|
} // namespace vold
|
|
} // namespace android
|
|
|
|
#endif
|