1 /*
2 * Copyright (C) 2023 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 #include "host/commands/assemble_cvd/disk/disk.h"
18
19 #include <string>
20
21 #include "common/libs/utils/files.h"
22 #include "common/libs/utils/subprocess.h"
23 #include "host/commands/assemble_cvd/boot_config.h"
24 #include "host/commands/assemble_cvd/boot_image_utils.h"
25 #include "host/libs/config/known_paths.h"
26
27 namespace cuttlefish {
28
29 using APBootFlow = CuttlefishConfig::InstanceSpecific::APBootFlow;
30
PrepareVBMetaImage(const std::string & path,bool has_boot_config)31 static bool PrepareVBMetaImage(const std::string& path, bool has_boot_config) {
32 std::unique_ptr<Avb> avbtool = GetDefaultAvb();
33 std::vector<ChainPartition> chained_partitions = {ChainPartition{
34 .name = "uboot_env",
35 .rollback_index = "1",
36 .key_path = TestPubKeyRsa4096(),
37 }};
38 if (has_boot_config) {
39 chained_partitions.emplace_back(ChainPartition{
40 .name = "bootconfig",
41 .rollback_index = "2",
42 .key_path = TestPubKeyRsa4096(),
43 });
44 }
45 Result<void> result =
46 avbtool->MakeVbMetaImage(path, chained_partitions, {}, {});
47 if (!result.ok()) {
48 LOG(ERROR) << result.error().Trace();
49 return false;
50 }
51 return true;
52 }
53
GeneratePersistentVbmeta(const CuttlefishConfig::InstanceSpecific & instance,AutoSetup<InitBootloaderEnvPartition>::Type &,AutoSetup<GeneratePersistentBootconfig>::Type &)54 Result<void> GeneratePersistentVbmeta(
55 const CuttlefishConfig::InstanceSpecific& instance,
56 AutoSetup<InitBootloaderEnvPartition>::Type& /* dependency */,
57 AutoSetup<GeneratePersistentBootconfig>::Type& /* dependency */) {
58 if (!instance.protected_vm()) {
59 CF_EXPECT(PrepareVBMetaImage(instance.vbmeta_path(),
60 instance.bootconfig_supported()));
61 }
62 if (instance.ap_boot_flow() == APBootFlow::Grub) {
63 CF_EXPECT(PrepareVBMetaImage(instance.ap_vbmeta_path(), false));
64 }
65 return {};
66 }
67
68 } // namespace cuttlefish
69