xref: /aosp_15_r20/system/extras/libfec/avb_utils.h (revision 288bf5226967eb3dac5cce6c939ccc2a7f2b4fe5)
1*288bf522SAndroid Build Coastguard Worker /*
2*288bf522SAndroid Build Coastguard Worker  * Copyright (C) 2020 The Android Open Source Project
3*288bf522SAndroid Build Coastguard Worker  *
4*288bf522SAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*288bf522SAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*288bf522SAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*288bf522SAndroid Build Coastguard Worker  *
8*288bf522SAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*288bf522SAndroid Build Coastguard Worker  *
10*288bf522SAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*288bf522SAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*288bf522SAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*288bf522SAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*288bf522SAndroid Build Coastguard Worker  * limitations under the License.
15*288bf522SAndroid Build Coastguard Worker  */
16*288bf522SAndroid Build Coastguard Worker 
17*288bf522SAndroid Build Coastguard Worker #pragma once
18*288bf522SAndroid Build Coastguard Worker 
19*288bf522SAndroid Build Coastguard Worker #include <stdint.h>
20*288bf522SAndroid Build Coastguard Worker #include <vector>
21*288bf522SAndroid Build Coastguard Worker 
22*288bf522SAndroid Build Coastguard Worker struct fec_handle;
23*288bf522SAndroid Build Coastguard Worker 
24*288bf522SAndroid Build Coastguard Worker // Checks if there is a valid AVB footer in the end of the image. If so, parses
25*288bf522SAndroid Build Coastguard Worker // the contents of vbmeta struct from the given AVB footer. Returns 0 on
26*288bf522SAndroid Build Coastguard Worker // success.
27*288bf522SAndroid Build Coastguard Worker int parse_vbmeta_from_footer(fec_handle *f, std::vector<uint8_t> *vbmeta);
28*288bf522SAndroid Build Coastguard Worker 
29*288bf522SAndroid Build Coastguard Worker // Parses the AVB vbmeta for the information of hashtree and fec data.
30*288bf522SAndroid Build Coastguard Worker int parse_avb_image(fec_handle *f, const std::vector<uint8_t> &vbmeta);
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