fefe5915b0
Includes various minor fixes for building in Android 8 trees with r23+ tag Update FBE extended header in libtar to version 2 and include the entire ext4_encryption_policy structure now after translating the policy. See this post for more details: https://plus.google.com/u/1/+DeesTroy/posts/i33ygUi7tiu Change-Id: I2af981e51f459b17fcd895fb8c2d3f6c8200e24b
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Copyright (C) 2016 Team Win Recovery 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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#ifndef __EXT4CRYPT_TAR_H
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#define __EXT4CRYPT_TAR_H
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#include <sys/cdefs.h>
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#include <stdbool.h>
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#include <cutils/multiuser.h>
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// ext4enc:TODO Include structure from somewhere sensible
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// MUST be in sync with ext4_crypto.c in kernel
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#define EXT4_KEY_DESCRIPTOR_SIZE 8
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#define EXT4_KEY_DESCRIPTOR_SIZE_HEX 17
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// ext4enc:TODO Get value from somewhere sensible
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#define EXT4_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct ext4_encryption_policy)
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#define EXT4_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct ext4_encryption_policy)
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__BEGIN_DECLS
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struct ext4_encryption_policy {
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char version;
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char contents_encryption_mode;
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char filenames_encryption_mode;
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char flags;
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char master_key_descriptor[EXT4_KEY_DESCRIPTOR_SIZE];
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} __attribute__((__packed__));
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bool lookup_ref_key(const char* policy, char* policy_type);
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bool lookup_ref_tar(const char* policy_type, char* policy);
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void policy_to_hex(const char* policy, char* hex);
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bool e4crypt_policy_set(const char *directory, const char *policy,
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size_t policy_length, int contents_encryption_mode);
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bool e4crypt_policy_get(const char *directory, char *policy,
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size_t policy_length, int contents_encryption_mode);
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void e4crypt_policy_fill_default_struct(struct ext4_encryption_policy *eep);
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bool e4crypt_policy_set_struct(const char *directory, const struct ext4_encryption_policy *eep);
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bool e4crypt_policy_get_struct(const char *directory, struct ext4_encryption_policy *eep);
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bool e4crypt_set_mode();
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__END_DECLS
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#endif
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