1 //
2 // Copyright (C) 2020 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #pragma once
18 
19 #include <optional>
20 #include <string>
21 
22 #include <kver/kernel_release.h>
23 #include <kver/kmi_version.h>
24 
25 namespace android::kver {
26 
27 // Check if new_release is a valid update against old_release.
28 bool IsKernelUpdateValid(const std::optional<KernelRelease>& old_kernel_release,
29                          const std::optional<KernelRelease>& new_kernel_release);
30 
31 // These functions defines how kernel releases and KMI versions are related to
32 // APEX package names and versions.
33 
34 // Defines how kernel release is mapped to APEX package names.
35 // e.g. "com.android.gki.kmi_5_4_android12_0"
36 std::string GetApexName(const KmiVersion& kmi_version);
37 
38 // Return the APEX version for a GKI APEX built from source.
39 uint64_t GetFactoryApexVersion();
40 
41 }  // namespace android::kver
42