bigbiffandmauronofrio
7ba7500953
fscrypt aosp doc: https://source.android.com/security/encryption/file-based kernel fscrypt doc: https://www.kernel.org/doc/html/v4.18/filesystems/fscrypt.html This commit implements the ability for TWRP to use fscrypt to decrypt files on the fscrypt implementation. It has been implemented mostly in a new successor library to e4crypt called libtwrpfscrypt. Most of the code was ported from AOSP vold. Notable updates include: - updated policy storage by libtar - lookup of fbe policies by libtwrpfscrypt - threaded keystore operations Big thanks to Dees_Troy for the initial trailblazing of encryption in TWRP. Change-Id: I69cd2eba3693a9914e00213d4943229635d0cdae
43 lines
1.7 KiB
C++
Executable File
43 lines
1.7 KiB
C++
Executable File
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string>
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#include <map>
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#include <vector>
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#include <cutils/multiuser.h>
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bool fscrypt_initialize_systemwide_keys();
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bool fscrypt_init_user0();
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bool fscrypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral);
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bool fscrypt_destroy_user_key(userid_t user_id);
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bool fscrypt_add_user_key_auth(userid_t user_id, int serial, const std::string& token,
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const std::string& secret);
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bool fscrypt_fixate_newest_user_key_auth(userid_t user_id);
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bool fscrypt_unlock_user_key(userid_t user_id, int serial, const std::string& token,
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const std::string& secret);
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bool fscrypt_lock_user_key(userid_t user_id);
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bool fscrypt_prepare_user_storage(const std::string& volume_uuid, userid_t user_id, int serial,
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int flags);
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bool fscrypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags);
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bool fscrypt_destroy_volume_keys(const std::string& volume_uuid);
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bool lookup_key_ref(const std::map<userid_t, std::string>& key_map, userid_t user_id,
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std::string* raw_ref); |