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
46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
/*
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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 <map>
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#include <string>
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#include <cutils/multiuser.h>
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bool e4crypt_initialize_global_de();
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bool e4crypt_init_user0();
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/*bool e4crypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral);
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bool e4crypt_destroy_user_key(userid_t user_id);
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bool e4crypt_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 e4crypt_fixate_newest_user_key_auth(userid_t user_id);*/
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bool e4crypt_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 e4crypt_lock_user_key(userid_t user_id);
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bool e4crypt_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 e4crypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags);
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bool e4crypt_destroy_volume_keys(const std::string& volume_uuid);*/
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bool is_wrapped_key_supported();
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bool is_wrapped_key_supported_external();
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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);
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