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//
// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "update_engine/boot_control_android.h"
#include <set>
#include <vector>
#include <base/logging.h>
#include <base/strings/string_util.h>
#include <fs_mgr.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <libdm/dm.h>
#include "update_engine/dynamic_partition_test_utils.h"
#include "update_engine/mock_boot_control_hal.h"
#include "update_engine/mock_dynamic_partition_control.h"
using android::dm::DmDeviceState;
using android::hardware::Void;
using std::string;
using testing::_;
using testing::AnyNumber;
using testing::Invoke;
using testing::NiceMock;
using testing::Not;
using testing::Return;
namespace chromeos_update_engine {
class BootControlAndroidTest : public ::testing::Test {
protected:
void SetUp() override {
// Fake init bootctl_
bootctl_.module_ = new NiceMock<MockBootControlHal>();
bootctl_.dynamic_control_ =
std::make_unique<NiceMock<MockDynamicPartitionControl>>();
ON_CALL(module(), getNumberSlots()).WillByDefault(Invoke([] {
return kMaxNumSlots;
}));
ON_CALL(module(), getSuffix(_, _))
.WillByDefault(Invoke([](auto slot, auto cb) {
EXPECT_LE(slot, kMaxNumSlots);
cb(slot < kMaxNumSlots ? kSlotSuffixes[slot] : "");
return Void();
}));
ON_CALL(dynamicControl(), GetDynamicPartitionsFeatureFlag())
.WillByDefault(Return(FeatureFlag(FeatureFlag::Value::LAUNCH)));
ON_CALL(dynamicControl(), DeviceExists(_)).WillByDefault(Return(true));
ON_CALL(dynamicControl(), GetDeviceDir(_))
.WillByDefault(Invoke([](auto path) {
*path = kFakeDevicePath;
return true;
}));
ON_CALL(dynamicControl(), GetDmDevicePathByName(_, _))
.WillByDefault(Invoke([](auto partition_name_suffix, auto device) {
*device = GetDmDevice(partition_name_suffix);
return true;
}));
ON_CALL(dynamicControl(), GetSuperPartitionName(_))
.WillByDefault(Return(kFakeSuper));
}
std::string GetSuperDevice(uint32_t slot) {
return GetDevice(dynamicControl().GetSuperPartitionName(slot));
}
// Return the mocked HAL module.
NiceMock<MockBootControlHal>& module() {
return static_cast<NiceMock<MockBootControlHal>&>(*bootctl_.module_);
}
// Return the mocked DynamicPartitionControlInterface.
NiceMock<MockDynamicPartitionControl>& dynamicControl() {
return static_cast<NiceMock<MockDynamicPartitionControl>&>(
*bootctl_.dynamic_control_);
}
// Set the fake metadata to return when LoadMetadataBuilder is called on
// |slot|.
void SetMetadata(uint32_t slot, const PartitionSuffixSizes& sizes) {
EXPECT_CALL(dynamicControl(),
LoadMetadataBuilder(GetSuperDevice(slot), slot))
.Times(AnyNumber())
.WillRepeatedly(Invoke([sizes](auto, auto) {
return NewFakeMetadata(PartitionSuffixSizesToMetadata(sizes));
}));
}
uint32_t source() { return slots_.source; }
uint32_t target() { return slots_.target; }
// Return partition names with suffix of source().
string S(const string& name) { return name + kSlotSuffixes[source()]; }
// Return partition names with suffix of target().
string T(const string& name) { return name + kSlotSuffixes[target()]; }
// Set source and target slots to use before testing.
void SetSlots(const TestParam& slots) {
slots_ = slots;
ON_CALL(module(), getCurrentSlot()).WillByDefault(Invoke([this] {
return source();
}));
}
bool InitPartitionMetadata(uint32_t slot,
PartitionSizes partition_sizes,
bool update_metadata = true) {
auto m = PartitionSizesToMetadata(partition_sizes);
return bootctl_.InitPartitionMetadata(slot, m, update_metadata);
}
BootControlAndroid bootctl_; // BootControlAndroid under test.
TestParam slots_;
};
class BootControlAndroidTestP
: public BootControlAndroidTest,
public ::testing::WithParamInterface<TestParam> {
public:
void SetUp() override {
BootControlAndroidTest::SetUp();
SetSlots(GetParam());
}
};
// Test applying retrofit update on a build with dynamic partitions enabled.
TEST_P(BootControlAndroidTestP,
ApplyRetrofitUpdateOnDynamicPartitionsEnabledBuild) {
SetMetadata(source(),
{{S("system"), 2_GiB},
{S("vendor"), 1_GiB},
{T("system"), 2_GiB},
{T("vendor"), 1_GiB}});
// Not calling through BootControlAndroidTest::InitPartitionMetadata(), since
// we don't want any default group in the PartitionMetadata.
EXPECT_TRUE(bootctl_.InitPartitionMetadata(target(), {}, true));
// Should use dynamic source partitions.
EXPECT_CALL(dynamicControl(), GetState(S("system")))
.Times(1)
.WillOnce(Return(DmDeviceState::ACTIVE));
string system_device;
EXPECT_TRUE(bootctl_.GetPartitionDevice("system", source(), &system_device));
EXPECT_EQ(GetDmDevice(S("system")), system_device);
// Should use static target partitions without querying dynamic control.
EXPECT_CALL(dynamicControl(), GetState(T("system"))).Times(0);
EXPECT_TRUE(bootctl_.GetPartitionDevice("system", target(), &system_device));
EXPECT_EQ(GetDevice(T("system")), system_device);
// Static partition "bar".
EXPECT_CALL(dynamicControl(), GetState(S("bar"))).Times(0);
std::string bar_device;
EXPECT_TRUE(bootctl_.GetPartitionDevice("bar", source(), &bar_device));
EXPECT_EQ(GetDevice(S("bar")), bar_device);
EXPECT_CALL(dynamicControl(), GetState(T("bar"))).Times(0);
EXPECT_TRUE(bootctl_.GetPartitionDevice("bar", target(), &bar_device));
EXPECT_EQ(GetDevice(T("bar")), bar_device);
}
TEST_P(BootControlAndroidTestP, GetPartitionDeviceWhenResumingUpdate) {
// Both of the two slots contain valid partition metadata, since this is
// resuming an update.
SetMetadata(source(),
{{S("system"), 2_GiB},
{S("vendor"), 1_GiB},
{T("system"), 2_GiB},
{T("vendor"), 1_GiB}});
SetMetadata(target(),
{{S("system"), 2_GiB},
{S("vendor"), 1_GiB},
{T("system"), 2_GiB},
{T("vendor"), 1_GiB}});
EXPECT_TRUE(InitPartitionMetadata(
target(), {{"system", 2_GiB}, {"vendor", 1_GiB}}, false));
// Dynamic partition "system".
EXPECT_CALL(dynamicControl(), GetState(S("system")))
.Times(1)
.WillOnce(Return(DmDeviceState::ACTIVE));
string system_device;
EXPECT_TRUE(bootctl_.GetPartitionDevice("system", source(), &system_device));
EXPECT_EQ(GetDmDevice(S("system")), system_device);
EXPECT_CALL(dynamicControl(), GetState(T("system")))
.Times(AnyNumber())
.WillOnce(Return(DmDeviceState::ACTIVE));
EXPECT_CALL(dynamicControl(),
MapPartitionOnDeviceMapper(
GetSuperDevice(target()), T("system"), target(), _, _))
.Times(AnyNumber())
.WillRepeatedly(
Invoke([](const auto&, const auto& name, auto, auto, auto* device) {
*device = "/fake/remapped/" + name;
return true;
}));
EXPECT_TRUE(bootctl_.GetPartitionDevice("system", target(), &system_device));
EXPECT_EQ("/fake/remapped/" + T("system"), system_device);
// Static partition "bar".
EXPECT_CALL(dynamicControl(), GetState(S("bar"))).Times(0);
std::string bar_device;
EXPECT_TRUE(bootctl_.GetPartitionDevice("bar", source(), &bar_device));
EXPECT_EQ(GetDevice(S("bar")), bar_device);
EXPECT_CALL(dynamicControl(), GetState(T("bar"))).Times(0);
EXPECT_TRUE(bootctl_.GetPartitionDevice("bar", target(), &bar_device));
EXPECT_EQ(GetDevice(T("bar")), bar_device);
}
INSTANTIATE_TEST_CASE_P(BootControlAndroidTest,
BootControlAndroidTestP,
testing::Values(TestParam{0, 1}, TestParam{1, 0}));
TEST_F(BootControlAndroidTest, ApplyingToCurrentSlot) {
SetSlots({1, 1});
EXPECT_FALSE(InitPartitionMetadata(target(), {}))
<< "Should not be able to apply to current slot.";
}
} // namespace chromeos_update_engine
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