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 <fruit/fruit.h>
22
23 #include "common/libs/utils/files.h"
24 #include "common/libs/utils/subprocess.h"
25 #include "host/commands/assemble_cvd/boot_config.h"
26 #include "host/commands/assemble_cvd/boot_image_utils.h"
27 #include "host/libs/config/known_paths.h"
28
29 namespace cuttlefish {
30
31 using APBootFlow = CuttlefishConfig::InstanceSpecific::APBootFlow;
32
PrepareVBMetaImage(const std::string & path,bool has_boot_config)33 static bool PrepareVBMetaImage(const std::string& path, bool has_boot_config) {
34 std::unique_ptr<Avb> avbtool = GetDefaultAvb();
35 std::vector<ChainPartition> chained_partitions = {ChainPartition{
36 .name = "uboot_env",
37 .rollback_index = "1",
38 .key_path = TestPubKeyRsa4096(),
39 }};
40 if (has_boot_config) {
41 chained_partitions.emplace_back(ChainPartition{
42 .name = "bootconfig",
43 .rollback_index = "2",
44 .key_path = TestPubKeyRsa4096(),
45 });
46 }
47 Result<void> result =
48 avbtool->MakeVbMetaImage(path, chained_partitions, {}, {});
49 if (!result.ok()) {
50 LOG(ERROR) << result.error().Trace();
51 return false;
52 }
53 return true;
54 }
55
GeneratePersistentVbmeta(const CuttlefishConfig::InstanceSpecific & instance,AutoSetup<InitBootloaderEnvPartition>::Type &,AutoSetup<GeneratePersistentBootconfig>::Type &)56 Result<void> GeneratePersistentVbmeta(
57 const CuttlefishConfig::InstanceSpecific& instance,
58 AutoSetup<InitBootloaderEnvPartition>::Type& /* dependency */,
59 AutoSetup<GeneratePersistentBootconfig>::Type& /* dependency */) {
60 if (!instance.protected_vm()) {
61 CF_EXPECT(PrepareVBMetaImage(instance.vbmeta_path(),
62 instance.bootconfig_supported()));
63 }
64 if (instance.ap_boot_flow() == APBootFlow::Grub) {
65 CF_EXPECT(PrepareVBMetaImage(instance.ap_vbmeta_path(), false));
66 }
67 return {};
68 }
69
70 } // namespace cuttlefish
71