Merge "liblog: return 0 from android_logger_list_read() when recv() returns 0"
diff --git a/fs_mgr/libsnapshot/Android.bp b/fs_mgr/libsnapshot/Android.bp
index 9256a16..1d72c70 100644
--- a/fs_mgr/libsnapshot/Android.bp
+++ b/fs_mgr/libsnapshot/Android.bp
@@ -72,6 +72,7 @@
name: "libsnapshot_sources",
srcs: [
"android/snapshot/snapshot.proto",
+ "device_info.cpp",
"snapshot.cpp",
"snapshot_metadata_updater.cpp",
"partition_cow_creator.cpp",
diff --git a/fs_mgr/libsnapshot/device_info.cpp b/fs_mgr/libsnapshot/device_info.cpp
new file mode 100644
index 0000000..bacb41c
--- /dev/null
+++ b/fs_mgr/libsnapshot/device_info.cpp
@@ -0,0 +1,123 @@
+// Copyright (C) 2019 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 "device_info.h"
+
+#include <android-base/logging.h>
+#include <fs_mgr.h>
+#include <fs_mgr_overlayfs.h>
+
+namespace android {
+namespace snapshot {
+
+#ifdef LIBSNAPSHOT_USE_HAL
+using android::hardware::boot::V1_0::CommandResult;
+#endif
+
+using namespace std::string_literals;
+
+#ifdef __ANDROID_RECOVERY__
+constexpr bool kIsRecovery = true;
+#else
+constexpr bool kIsRecovery = false;
+#endif
+
+std::string DeviceInfo::GetGsidDir() const {
+ return "ota"s;
+}
+
+std::string DeviceInfo::GetMetadataDir() const {
+ return "/metadata/ota"s;
+}
+
+std::string DeviceInfo::GetSlotSuffix() const {
+ return fs_mgr_get_slot_suffix();
+}
+
+std::string DeviceInfo::GetOtherSlotSuffix() const {
+ return fs_mgr_get_other_slot_suffix();
+}
+
+const android::fs_mgr::IPartitionOpener& DeviceInfo::GetPartitionOpener() const {
+ return opener_;
+}
+
+std::string DeviceInfo::GetSuperDevice(uint32_t slot) const {
+ return fs_mgr_get_super_partition_name(slot);
+}
+
+bool DeviceInfo::IsOverlayfsSetup() const {
+ return fs_mgr_overlayfs_is_setup();
+}
+
+#ifdef LIBSNAPSHOT_USE_HAL
+bool DeviceInfo::EnsureBootHal() {
+ if (!boot_control_) {
+ auto hal = android::hardware::boot::V1_0::IBootControl::getService();
+ if (!hal) {
+ LOG(ERROR) << "Could not find IBootControl HAL";
+ return false;
+ }
+ boot_control_ = android::hardware::boot::V1_1::IBootControl::castFrom(hal);
+ if (!boot_control_) {
+ LOG(ERROR) << "Could not find IBootControl 1.1 HAL";
+ return false;
+ }
+ }
+ return true;
+}
+#endif
+
+bool DeviceInfo::SetBootControlMergeStatus([[maybe_unused]] MergeStatus status) {
+#ifdef LIBSNAPSHOT_USE_HAL
+ if (!EnsureBootHal()) {
+ return false;
+ }
+ if (!boot_control_->setSnapshotMergeStatus(status)) {
+ LOG(ERROR) << "Unable to set the snapshot merge status";
+ return false;
+ }
+ return true;
+#else
+ LOG(ERROR) << "HAL support not enabled.";
+ return false;
+#endif
+}
+
+bool DeviceInfo::IsRecovery() const {
+ return kIsRecovery;
+}
+
+bool DeviceInfo::SetSlotAsUnbootable([[maybe_unused]] unsigned int slot) {
+#ifdef LIBSNAPSHOT_USE_HAL
+ if (!EnsureBootHal()) {
+ return false;
+ }
+
+ CommandResult result = {};
+ auto cb = [&](CommandResult r) -> void { result = r; };
+ boot_control_->setSlotAsUnbootable(slot, cb);
+ if (!result.success) {
+ LOG(ERROR) << "Error setting slot " << slot << " unbootable: " << result.errMsg;
+ return false;
+ }
+ return true;
+#else
+ LOG(ERROR) << "HAL support not enabled.";
+ return false;
+#endif
+}
+
+} // namespace snapshot
+} // namespace android
diff --git a/fs_mgr/libsnapshot/device_info.h b/fs_mgr/libsnapshot/device_info.h
new file mode 100644
index 0000000..d8d3d91
--- /dev/null
+++ b/fs_mgr/libsnapshot/device_info.h
@@ -0,0 +1,53 @@
+// Copyright (C) 2019 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.
+
+#pragma once
+
+#include <string>
+
+#ifdef LIBSNAPSHOT_USE_HAL
+#include <android/hardware/boot/1.1/IBootControl.h>
+#endif
+#include <liblp/partition_opener.h>
+#include <libsnapshot/snapshot.h>
+
+namespace android {
+namespace snapshot {
+
+class DeviceInfo final : public SnapshotManager::IDeviceInfo {
+ using MergeStatus = android::hardware::boot::V1_1::MergeStatus;
+
+ public:
+ std::string GetGsidDir() const override;
+ std::string GetMetadataDir() const override;
+ std::string GetSlotSuffix() const override;
+ std::string GetOtherSlotSuffix() const override;
+ const android::fs_mgr::IPartitionOpener& GetPartitionOpener() const override;
+ std::string GetSuperDevice(uint32_t slot) const override;
+ bool IsOverlayfsSetup() const override;
+ bool SetBootControlMergeStatus(MergeStatus status) override;
+ bool SetSlotAsUnbootable(unsigned int slot) override;
+ bool IsRecovery() const override;
+
+ private:
+ bool EnsureBootHal();
+
+ android::fs_mgr::PartitionOpener opener_;
+#ifdef LIBSNAPSHOT_USE_HAL
+ android::sp<android::hardware::boot::V1_1::IBootControl> boot_control_;
+#endif
+};
+
+} // namespace snapshot
+} // namespace android
diff --git a/fs_mgr/libsnapshot/include/libsnapshot/auto_device.h b/fs_mgr/libsnapshot/include/libsnapshot/auto_device.h
index d5ceb0e..73450db 100644
--- a/fs_mgr/libsnapshot/include/libsnapshot/auto_device.h
+++ b/fs_mgr/libsnapshot/include/libsnapshot/auto_device.h
@@ -27,6 +27,8 @@
virtual ~AutoDevice(){};
void Release();
+ bool HasDevice() const { return !name_.empty(); }
+
protected:
AutoDevice(const std::string& name) : name_(name) {}
std::string name_;
diff --git a/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h b/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
index c820395..8f24709 100644
--- a/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
+++ b/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
@@ -122,6 +122,7 @@
virtual const IPartitionOpener& GetPartitionOpener() const = 0;
virtual bool IsOverlayfsSetup() const = 0;
virtual bool SetBootControlMergeStatus(MergeStatus status) = 0;
+ virtual bool SetSlotAsUnbootable(unsigned int slot) = 0;
virtual bool IsRecovery() const = 0;
};
@@ -133,7 +134,7 @@
static std::unique_ptr<SnapshotManager> New(IDeviceInfo* device = nullptr);
// This is similar to New(), except designed specifically for first-stage
- // init.
+ // init or recovery.
static std::unique_ptr<SnapshotManager> NewForFirstStageMount(IDeviceInfo* device = nullptr);
// Helper function for first-stage init to check whether a SnapshotManager
@@ -180,7 +181,10 @@
//
// MergeCompleted indicates that the update has fully completed.
// GetUpdateState will return None, and a new update can begin.
- UpdateState ProcessUpdateState();
+ //
+ // The optional callback allows the caller to periodically check the
+ // progress with GetUpdateState().
+ UpdateState ProcessUpdateState(const std::function<void()>& callback = {});
public:
// Initiate the merge if necessary, then wait for the merge to finish.
@@ -219,6 +223,18 @@
// call to CreateLogicalPartitions when snapshots are present.
bool CreateLogicalAndSnapshotPartitions(const std::string& super_device);
+ // This method should be called preceding any wipe or flash of metadata or
+ // userdata. It is only valid in recovery.
+ //
+ // When userdata will be wiped or flashed, it is necessary to clean up any
+ // snapshot state. If a merge is in progress, the merge must be finished.
+ // If a snapshot is present but not yet merged, the slot must be marked as
+ // unbootable.
+ //
+ // Returns true on success (or nothing to do), false on failure. The
+ // optional callback fires periodically to query progress via GetUpdateState.
+ bool HandleImminentDataWipe(const std::function<void()>& callback = {});
+
// Dump debug information.
bool Dump(std::ostream& os);
@@ -231,7 +247,7 @@
// is not found in fstab.
// Note: if this function is called the second time before the AutoDevice returned from the
// first call is destroyed, the device will be unmounted when any of these AutoDevices is
- // destroyed. FOr example:
+ // destroyed. For example:
// auto a = mgr->EnsureMetadataMounted(); // mounts
// auto b = mgr->EnsureMetadataMounted(); // does nothing
// b.reset() // unmounts
@@ -250,7 +266,10 @@
FRIEND_TEST(SnapshotTest, Merge);
FRIEND_TEST(SnapshotTest, NoMergeBeforeReboot);
FRIEND_TEST(SnapshotTest, UpdateBootControlHal);
+ FRIEND_TEST(SnapshotUpdateTest, DataWipeAfterRollback);
+ FRIEND_TEST(SnapshotUpdateTest, DataWipeRollbackInRecovery);
FRIEND_TEST(SnapshotUpdateTest, MergeCannotRemoveCow);
+ FRIEND_TEST(SnapshotUpdateTest, MergeInRecovery);
FRIEND_TEST(SnapshotUpdateTest, SnapshotStatusFileWithoutCow);
friend class SnapshotTest;
friend class SnapshotUpdateTest;
@@ -464,6 +483,10 @@
const LpMetadata* exported_target_metadata, const std::string& target_suffix,
const std::map<std::string, SnapshotStatus>& all_snapshot_status);
+ // Unmap all partitions that were mapped by CreateLogicalAndSnapshotPartitions.
+ // This should only be called in recovery.
+ bool UnmapAllPartitions();
+
std::string gsid_dir_;
std::string metadata_dir_;
std::unique_ptr<IDeviceInfo> device_;
diff --git a/fs_mgr/libsnapshot/snapshot.cpp b/fs_mgr/libsnapshot/snapshot.cpp
index 2c516a2..1de7008 100644
--- a/fs_mgr/libsnapshot/snapshot.cpp
+++ b/fs_mgr/libsnapshot/snapshot.cpp
@@ -29,19 +29,16 @@
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <android-base/unique_fd.h>
-#ifdef LIBSNAPSHOT_USE_HAL
-#include <android/hardware/boot/1.1/IBootControl.h>
-#endif
#include <ext4_utils/ext4_utils.h>
#include <fs_mgr.h>
#include <fs_mgr_dm_linear.h>
-#include <fs_mgr_overlayfs.h>
#include <fstab/fstab.h>
#include <libdm/dm.h>
#include <libfiemap/image_manager.h>
#include <liblp/liblp.h>
#include <android/snapshot/snapshot.pb.h>
+#include "device_info.h"
#include "partition_cow_creator.h"
#include "snapshot_metadata_updater.h"
#include "utility.h"
@@ -77,57 +74,6 @@
static constexpr char kBootIndicatorPath[] = "/metadata/ota/snapshot-boot";
-#ifdef __ANDROID_RECOVERY__
-constexpr bool kIsRecovery = true;
-#else
-constexpr bool kIsRecovery = false;
-#endif
-
-class DeviceInfo final : public SnapshotManager::IDeviceInfo {
- public:
- std::string GetGsidDir() const override { return "ota"s; }
- std::string GetMetadataDir() const override { return "/metadata/ota"s; }
- std::string GetSlotSuffix() const override { return fs_mgr_get_slot_suffix(); }
- std::string GetOtherSlotSuffix() const override { return fs_mgr_get_other_slot_suffix(); }
- const android::fs_mgr::IPartitionOpener& GetPartitionOpener() const { return opener_; }
- std::string GetSuperDevice(uint32_t slot) const override {
- return fs_mgr_get_super_partition_name(slot);
- }
- bool IsOverlayfsSetup() const override { return fs_mgr_overlayfs_is_setup(); }
- bool SetBootControlMergeStatus(MergeStatus status) override;
- bool IsRecovery() const override { return kIsRecovery; }
-
- private:
- android::fs_mgr::PartitionOpener opener_;
-#ifdef LIBSNAPSHOT_USE_HAL
- android::sp<android::hardware::boot::V1_1::IBootControl> boot_control_;
-#endif
-};
-
-bool DeviceInfo::SetBootControlMergeStatus([[maybe_unused]] MergeStatus status) {
-#ifdef LIBSNAPSHOT_USE_HAL
- if (!boot_control_) {
- auto hal = android::hardware::boot::V1_0::IBootControl::getService();
- if (!hal) {
- LOG(ERROR) << "Could not find IBootControl HAL";
- return false;
- }
- boot_control_ = android::hardware::boot::V1_1::IBootControl::castFrom(hal);
- if (!boot_control_) {
- LOG(ERROR) << "Could not find IBootControl 1.1 HAL";
- return false;
- }
- }
- if (!boot_control_->setSnapshotMergeStatus(status)) {
- LOG(ERROR) << "Unable to set the snapshot merge status";
- return false;
- }
- return true;
-#else
- return false;
-#endif
-}
-
// Note: IImageManager is an incomplete type in the header, so the default
// destructor doesn't work.
SnapshotManager::~SnapshotManager() {}
@@ -512,6 +458,14 @@
return false;
}
+ // We can't delete snapshots in recovery. The only way we'd try is it we're
+ // completing or canceling a merge in preparation for a data wipe, in which
+ // case, we don't care if the file sticks around.
+ if (device_->IsRecovery()) {
+ LOG(INFO) << "Skipping delete of snapshot " << name << " in recovery.";
+ return true;
+ }
+
auto cow_image_name = GetCowImageDeviceName(name);
if (images_->BackingImageExists(cow_image_name)) {
if (!images_->DeleteBackingImage(cow_image_name)) {
@@ -744,7 +698,7 @@
// Note that when a merge fails, we will *always* try again to complete the
// merge each time the device boots. There is no harm in doing so, and if
// the problem was transient, we might manage to get a new outcome.
-UpdateState SnapshotManager::ProcessUpdateState() {
+UpdateState SnapshotManager::ProcessUpdateState(const std::function<void()>& callback) {
while (true) {
UpdateState state = CheckMergeState();
if (state == UpdateState::MergeFailed) {
@@ -756,6 +710,10 @@
return state;
}
+ if (callback) {
+ callback();
+ }
+
// This wait is not super time sensitive, so we have a relatively
// low polling frequency.
std::this_thread::sleep_for(2s);
@@ -1718,9 +1676,9 @@
case UpdateState::None:
case UpdateState::MergeNeedsReboot:
case UpdateState::MergeCompleted:
+ case UpdateState::Initiated:
merge_status = MergeStatus::NONE;
break;
- case UpdateState::Initiated:
case UpdateState::Unverified:
merge_status = MergeStatus::SNAPSHOTTED;
break;
@@ -2119,6 +2077,27 @@
return UnmapPartitionWithSnapshot(lock.get(), target_partition_name);
}
+bool SnapshotManager::UnmapAllPartitions() {
+ auto lock = LockExclusive();
+ if (!lock) return false;
+
+ const auto& opener = device_->GetPartitionOpener();
+ uint32_t slot = SlotNumberForSlotSuffix(device_->GetSlotSuffix());
+ auto super_device = device_->GetSuperDevice(slot);
+ auto metadata = android::fs_mgr::ReadMetadata(opener, super_device, slot);
+ if (!metadata) {
+ LOG(ERROR) << "Could not read dynamic partition metadata for device: " << super_device;
+ return false;
+ }
+
+ bool ok = true;
+ for (const auto& partition : metadata->partitions) {
+ auto partition_name = GetPartitionName(partition);
+ ok &= UnmapPartitionWithSnapshot(lock.get(), partition_name);
+ }
+ return ok;
+}
+
bool SnapshotManager::Dump(std::ostream& os) {
// Don't actually lock. Dump() is for debugging purposes only, so it is okay
// if it is racy.
@@ -2192,5 +2171,66 @@
return state;
}
+bool SnapshotManager::HandleImminentDataWipe(const std::function<void()>& callback) {
+ if (!device_->IsRecovery()) {
+ LOG(ERROR) << "Data wipes are only allowed in recovery.";
+ return false;
+ }
+
+ auto mount = EnsureMetadataMounted();
+ if (!mount || !mount->HasDevice()) {
+ // We allow the wipe to continue, because if we can't mount /metadata,
+ // it is unlikely the device would have booted anyway. If there is no
+ // metadata partition, then the device predates Virtual A/B.
+ return true;
+ }
+
+ auto slot_number = SlotNumberForSlotSuffix(device_->GetSlotSuffix());
+ auto super_path = device_->GetSuperDevice(slot_number);
+ if (!CreateLogicalAndSnapshotPartitions(super_path)) {
+ LOG(ERROR) << "Unable to map partitions to complete merge.";
+ return false;
+ }
+
+ UpdateState state = ProcessUpdateState(callback);
+ LOG(INFO) << "Update state in recovery: " << state;
+ switch (state) {
+ case UpdateState::MergeFailed:
+ LOG(ERROR) << "Unrecoverable merge failure detected.";
+ return false;
+ case UpdateState::Unverified: {
+ // If an OTA was just applied but has not yet started merging, we
+ // have no choice but to revert slots, because the current slot will
+ // immediately become unbootable. Rather than wait for the device
+ // to reboot N times until a rollback, we proactively disable the
+ // new slot instead.
+ //
+ // Since the rollback is inevitable, we don't treat a HAL failure
+ // as an error here.
+ std::string old_slot;
+ auto boot_file = GetSnapshotBootIndicatorPath();
+ if (android::base::ReadFileToString(boot_file, &old_slot) &&
+ device_->GetSlotSuffix() != old_slot) {
+ LOG(ERROR) << "Reverting to slot " << old_slot << " since update will be deleted.";
+ device_->SetSlotAsUnbootable(slot_number);
+ }
+ break;
+ }
+ case UpdateState::MergeNeedsReboot:
+ // We shouldn't get here, because nothing is depending on
+ // logical partitions.
+ LOG(ERROR) << "Unexpected merge-needs-reboot state in recovery.";
+ break;
+ default:
+ break;
+ }
+
+ // Nothing should be depending on partitions now, so unmap them all.
+ if (!UnmapAllPartitions()) {
+ LOG(ERROR) << "Unable to unmap all partitions; fastboot may fail to flash.";
+ }
+ return true;
+}
+
} // namespace snapshot
} // namespace android
diff --git a/fs_mgr/libsnapshot/snapshot_test.cpp b/fs_mgr/libsnapshot/snapshot_test.cpp
index af268f9..8783526 100644
--- a/fs_mgr/libsnapshot/snapshot_test.cpp
+++ b/fs_mgr/libsnapshot/snapshot_test.cpp
@@ -1230,6 +1230,80 @@
EXPECT_FALSE(IsMetadataMounted());
}
+// Test that during a merge, we can wipe data in recovery.
+TEST_F(SnapshotUpdateTest, MergeInRecovery) {
+ // Execute the first update.
+ ASSERT_TRUE(sm->BeginUpdate());
+ ASSERT_TRUE(sm->CreateUpdateSnapshots(manifest_));
+ ASSERT_TRUE(sm->FinishedSnapshotWrites());
+
+ // Simulate shutting down the device.
+ ASSERT_TRUE(UnmapAll());
+
+ // After reboot, init does first stage mount.
+ auto init = SnapshotManager::NewForFirstStageMount(new TestDeviceInfo(fake_super, "_b"));
+ ASSERT_NE(init, nullptr);
+ ASSERT_TRUE(init->NeedSnapshotsInFirstStageMount());
+ ASSERT_TRUE(init->CreateLogicalAndSnapshotPartitions("super"));
+ init = nullptr;
+
+ // Initiate the merge and then immediately stop it to simulate a reboot.
+ auto new_sm = SnapshotManager::New(new TestDeviceInfo(fake_super, "_b"));
+ ASSERT_TRUE(new_sm->InitiateMerge());
+ ASSERT_TRUE(UnmapAll());
+
+ // Simulate a reboot into recovery.
+ auto test_device = std::make_unique<TestDeviceInfo>(fake_super, "_b");
+ test_device->set_recovery(true);
+ new_sm = SnapshotManager::NewForFirstStageMount(test_device.release());
+
+ ASSERT_TRUE(new_sm->HandleImminentDataWipe());
+ ASSERT_EQ(new_sm->GetUpdateState(), UpdateState::None);
+}
+
+// Test that after an OTA, before a merge, we can wipe data in recovery.
+TEST_F(SnapshotUpdateTest, DataWipeRollbackInRecovery) {
+ // Execute the first update.
+ ASSERT_TRUE(sm->BeginUpdate());
+ ASSERT_TRUE(sm->CreateUpdateSnapshots(manifest_));
+ ASSERT_TRUE(sm->FinishedSnapshotWrites());
+
+ // Simulate shutting down the device.
+ ASSERT_TRUE(UnmapAll());
+
+ // Simulate a reboot into recovery.
+ auto test_device = new TestDeviceInfo(fake_super, "_b");
+ test_device->set_recovery(true);
+ auto new_sm = SnapshotManager::NewForFirstStageMount(test_device);
+
+ ASSERT_TRUE(new_sm->HandleImminentDataWipe());
+ EXPECT_EQ(new_sm->GetUpdateState(), UpdateState::Unverified);
+ EXPECT_TRUE(test_device->IsSlotUnbootable(1));
+ EXPECT_FALSE(test_device->IsSlotUnbootable(0));
+}
+
+// Test that after an OTA and a bootloader rollback with no merge, we can wipe
+// data in recovery.
+TEST_F(SnapshotUpdateTest, DataWipeAfterRollback) {
+ // Execute the first update.
+ ASSERT_TRUE(sm->BeginUpdate());
+ ASSERT_TRUE(sm->CreateUpdateSnapshots(manifest_));
+ ASSERT_TRUE(sm->FinishedSnapshotWrites());
+
+ // Simulate shutting down the device.
+ ASSERT_TRUE(UnmapAll());
+
+ // Simulate a rollback, with reboot into recovery.
+ auto test_device = new TestDeviceInfo(fake_super, "_a");
+ test_device->set_recovery(true);
+ auto new_sm = SnapshotManager::NewForFirstStageMount(test_device);
+
+ ASSERT_TRUE(new_sm->HandleImminentDataWipe());
+ EXPECT_EQ(new_sm->GetUpdateState(), UpdateState::None);
+ EXPECT_FALSE(test_device->IsSlotUnbootable(0));
+ EXPECT_FALSE(test_device->IsSlotUnbootable(0));
+}
+
class FlashAfterUpdateTest : public SnapshotUpdateTest,
public WithParamInterface<std::tuple<uint32_t, bool>> {
public:
diff --git a/fs_mgr/libsnapshot/test_helpers.h b/fs_mgr/libsnapshot/test_helpers.h
index 0f70afe..9083843 100644
--- a/fs_mgr/libsnapshot/test_helpers.h
+++ b/fs_mgr/libsnapshot/test_helpers.h
@@ -16,6 +16,7 @@
#include <optional>
#include <string>
+#include <unordered_set>
#include <android/hardware/boot/1.1/IBootControl.h>
#include <gmock/gmock.h>
@@ -89,6 +90,12 @@
}
bool IsOverlayfsSetup() const override { return false; }
bool IsRecovery() const override { return recovery_; }
+ bool SetSlotAsUnbootable(unsigned int slot) override {
+ unbootable_slots_.insert(slot);
+ return true;
+ }
+
+ bool IsSlotUnbootable(uint32_t slot) { return unbootable_slots_.count(slot) != 0; }
void set_slot_suffix(const std::string& suffix) { slot_suffix_ = suffix; }
void set_fake_super(const std::string& path) {
@@ -102,6 +109,7 @@
std::unique_ptr<TestPartitionOpener> opener_;
MergeStatus merge_status_;
bool recovery_ = false;
+ std::unordered_set<uint32_t> unbootable_slots_;
};
class SnapshotTestPropertyFetcher : public android::fs_mgr::testing::MockPropertyFetcher {
diff --git a/init/action.cpp b/init/action.cpp
index 69e40d0..f05fa7c 100644
--- a/init/action.cpp
+++ b/init/action.cpp
@@ -180,21 +180,24 @@
// It takes an optional (name, value) pair, which if provided must
// be present in property_triggers_; it skips the check of the current
// property value for this pair.
-bool Action::CheckPropertyTriggers(const std::string& name,
- const std::string& value) const {
+bool Action::CheckPropertyTriggers(const std::string& name, const std::string& value) const {
if (property_triggers_.empty()) {
return true;
}
- bool found = name.empty();
+ if (!name.empty()) {
+ auto it = property_triggers_.find(name);
+ if (it == property_triggers_.end()) {
+ return false;
+ }
+ const auto& trigger_value = it->second;
+ if (trigger_value != "*" && trigger_value != value) {
+ return false;
+ }
+ }
+
for (const auto& [trigger_name, trigger_value] : property_triggers_) {
- if (trigger_name == name) {
- if (trigger_value != "*" && trigger_value != value) {
- return false;
- } else {
- found = true;
- }
- } else {
+ if (trigger_name != name) {
std::string prop_value = android::base::GetProperty(trigger_name, "");
if (trigger_value == "*" && !prop_value.empty()) {
continue;
@@ -202,7 +205,7 @@
if (trigger_value != prop_value) return false;
}
}
- return found;
+ return true;
}
bool Action::CheckEvent(const EventTrigger& event_trigger) const {
diff --git a/init/builtins.cpp b/init/builtins.cpp
index a55514b..8f58145 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -65,6 +65,7 @@
#include "action_manager.h"
#include "bootchart.h"
+#include "builtin_arguments.h"
#include "fscrypt_init_extensions.h"
#include "init.h"
#include "mount_namespace.h"
@@ -1216,6 +1217,15 @@
}
}
+static Result<void> do_finish_userspace_reboot(const BuiltinArguments&) {
+ LOG(INFO) << "Userspace reboot successfully finished";
+ boot_clock::time_point now = boot_clock::now();
+ property_set("sys.init.userspace_reboot.last_finished",
+ std::to_string(now.time_since_epoch().count()));
+ property_set(kUserspaceRebootInProgress, "0");
+ return {};
+}
+
// Builtin-function-map start
const BuiltinFunctionMap& GetBuiltinFunctionMap() {
constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max();
@@ -1237,6 +1247,7 @@
{"exec_background", {1, kMax, {false, do_exec_background}}},
{"exec_start", {1, 1, {false, do_exec_start}}},
{"export", {2, 2, {false, do_export}}},
+ {"finish_userspace_reboot", {0, 0, {false, do_finish_userspace_reboot}}},
{"hostname", {1, 1, {true, do_hostname}}},
{"ifup", {1, 1, {true, do_ifup}}},
{"init_user0", {0, 0, {false, do_init_user0}}},
diff --git a/init/reboot.cpp b/init/reboot.cpp
index 64ec1fb..7167672 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -69,10 +69,13 @@
using namespace std::literals;
+using android::base::boot_clock;
using android::base::GetBoolProperty;
+using android::base::SetProperty;
using android::base::Split;
using android::base::Timer;
using android::base::unique_fd;
+using android::base::WaitForProperty;
using android::base::WriteStringToFile;
namespace android {
@@ -728,16 +731,21 @@
static Result<void> DoUserspaceReboot() {
LOG(INFO) << "Userspace reboot initiated";
+ boot_clock::time_point now = boot_clock::now();
+ property_set("sys.init.userspace_reboot.last_started",
+ std::to_string(now.time_since_epoch().count()));
auto guard = android::base::make_scope_guard([] {
// Leave shutdown so that we can handle a full reboot.
LeaveShutdown();
trigger_shutdown("reboot,abort-userspace-reboot");
});
- // Triggering userspace-reboot-requested will result in a bunch of set_prop
+ // Triggering userspace-reboot-requested will result in a bunch of setprop
// actions. We should make sure, that all of them are propagated before
- // proceeding with userspace reboot.
- // TODO(b/135984674): implement proper synchronization logic.
- std::this_thread::sleep_for(500ms);
+ // proceeding with userspace reboot. Synchronously setting kUserspaceRebootInProgress property
+ // is not perfect, but it should do the trick.
+ if (property_set(kUserspaceRebootInProgress, "1") != 0) {
+ return Error() << "Failed to set property " << kUserspaceRebootInProgress;
+ }
EnterShutdown();
std::vector<Service*> stop_first;
// Remember the services that were enabled. We will need to manually enable them again otherwise
@@ -752,6 +760,12 @@
were_enabled.push_back(s);
}
}
+ {
+ Timer sync_timer;
+ LOG(INFO) << "sync() before terminating services...";
+ sync();
+ LOG(INFO) << "sync() took " << sync_timer;
+ }
// TODO(b/135984674): do we need shutdown animation for userspace reboot?
// TODO(b/135984674): control userspace timeout via read-only property?
StopServicesAndLogViolations(stop_first, 10s, true /* SIGTERM */);
@@ -767,6 +781,12 @@
// TODO(b/135984674): store information about offending services for debugging.
return Error() << r << " debugging services are still running";
}
+ {
+ Timer sync_timer;
+ LOG(INFO) << "sync() after stopping services...";
+ sync();
+ LOG(INFO) << "sync() took " << sync_timer;
+ }
if (auto result = UnmountAllApexes(); !result) {
return result;
}
@@ -784,7 +804,38 @@
return {};
}
+static void UserspaceRebootWatchdogThread() {
+ if (!WaitForProperty("sys.init.userspace_reboot_in_progress", "1", 20s)) {
+ // TODO(b/135984674): should we reboot instead?
+ LOG(WARNING) << "Userspace reboot didn't start in 20 seconds. Stopping watchdog";
+ return;
+ }
+ LOG(INFO) << "Starting userspace reboot watchdog";
+ // TODO(b/135984674): this should be configured via a read-only sysprop.
+ std::chrono::milliseconds timeout = 60s;
+ if (!WaitForProperty("sys.boot_completed", "1", timeout)) {
+ LOG(ERROR) << "Failed to boot in " << timeout.count() << "ms. Switching to full reboot";
+ // In this case device is in a boot loop. Only way to recover is to do dirty reboot.
+ RebootSystem(ANDROID_RB_RESTART2, "userspace-reboot-watchdog-triggered");
+ }
+ LOG(INFO) << "Device booted, stopping userspace reboot watchdog";
+}
+
static void HandleUserspaceReboot() {
+ // Spinnig up a separate thread will fail the setns call later in the boot sequence.
+ // Fork a new process to monitor userspace reboot while we are investigating a better solution.
+ pid_t pid = fork();
+ if (pid < 0) {
+ PLOG(ERROR) << "Failed to fork process for userspace reboot watchdog. Switching to full "
+ << "reboot";
+ trigger_shutdown("reboot,userspace-reboot-failed-to-fork");
+ return;
+ }
+ if (pid == 0) {
+ // Child
+ UserspaceRebootWatchdogThread();
+ _exit(EXIT_SUCCESS);
+ }
LOG(INFO) << "Clearing queue and starting userspace-reboot-requested trigger";
auto& am = ActionManager::GetInstance();
am.ClearQueue();
diff --git a/init/reboot.h b/init/reboot.h
index 81c3edc..cdfa024 100644
--- a/init/reboot.h
+++ b/init/reboot.h
@@ -22,6 +22,8 @@
namespace android {
namespace init {
+static const constexpr char* kUserspaceRebootInProgress = "sys.init.userspace_reboot.in_progress";
+
// Parses and handles a setprop sys.powerctl message.
void HandlePowerctlMessage(const std::string& command);
diff --git a/liblog/log_event_list.cpp b/liblog/log_event_list.cpp
index 7882c96..e9f4a32 100644
--- a/liblog/log_event_list.cpp
+++ b/liblog/log_event_list.cpp
@@ -47,9 +47,6 @@
uint8_t storage[LOGGER_ENTRY_MAX_PAYLOAD];
};
-// TODO(tomcherry): real C++ structs.
-typedef struct android_log_context_internal android_log_context_internal;
-
static void init_context(android_log_context_internal* context, uint32_t tag) {
context->tag = tag;
context->read_write_flag = kAndroidLoggerWrite;
@@ -110,11 +107,9 @@
return 0;
}
-int android_log_reset(android_log_context ctx) {
- android_log_context_internal* context;
+int android_log_reset(android_log_context context) {
uint32_t tag;
- context = (android_log_context_internal*)ctx;
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -126,10 +121,7 @@
return 0;
}
-int android_log_parser_reset(android_log_context ctx, const char* msg, size_t len) {
- android_log_context_internal* context;
-
- context = (android_log_context_internal*)ctx;
+int android_log_parser_reset(android_log_context context, const char* msg, size_t len) {
if (!context || (kAndroidLoggerRead != context->read_write_flag)) {
return -EBADF;
}
@@ -140,10 +132,7 @@
return 0;
}
-int android_log_write_list_begin(android_log_context ctx) {
- android_log_context_internal* context;
-
- context = (android_log_context_internal*)ctx;
+int android_log_write_list_begin(android_log_context context) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -174,8 +163,7 @@
return 0;
}
-int android_log_write_int32(android_log_context ctx, int32_t value) {
- android_log_context_internal* context = (android_log_context_internal*)ctx;
+int android_log_write_int32(android_log_context context, int32_t value) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -195,8 +183,7 @@
return 0;
}
-int android_log_write_int64(android_log_context ctx, int64_t value) {
- android_log_context_internal* context = (android_log_context_internal*)ctx;
+int android_log_write_int64(android_log_context context, int64_t value) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -216,8 +203,7 @@
return 0;
}
-int android_log_write_string8_len(android_log_context ctx, const char* value, size_t maxlen) {
- android_log_context_internal* context = (android_log_context_internal*)ctx;
+int android_log_write_string8_len(android_log_context context, const char* value, size_t maxlen) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -252,8 +238,7 @@
return android_log_write_string8_len(ctx, value, MAX_EVENT_PAYLOAD);
}
-int android_log_write_float32(android_log_context ctx, float value) {
- android_log_context_internal* context = (android_log_context_internal*)ctx;
+int android_log_write_float32(android_log_context context, float value) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -273,10 +258,7 @@
return 0;
}
-int android_log_write_list_end(android_log_context ctx) {
- android_log_context_internal* context;
-
- context = (android_log_context_internal*)ctx;
+int android_log_write_list_end(android_log_context context) {
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -303,8 +285,7 @@
/*
* Logs the list of elements to the event log.
*/
-int android_log_write_list(android_log_context ctx, log_id_t id) {
- android_log_context_internal* context;
+int android_log_write_list(android_log_context context, log_id_t id) {
const char* msg;
ssize_t len;
@@ -312,7 +293,6 @@
return -EINVAL;
}
- context = (android_log_context_internal*)ctx;
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -337,12 +317,10 @@
: __android_log_security_bwrite(context->tag, msg, len));
}
-int android_log_write_list_buffer(android_log_context ctx, const char** buffer) {
- android_log_context_internal* context;
+int android_log_write_list_buffer(android_log_context context, const char** buffer) {
const char* msg;
ssize_t len;
- context = (android_log_context_internal*)ctx;
if (!context || (kAndroidLoggerWrite != context->read_write_flag)) {
return -EBADF;
}
@@ -375,12 +353,10 @@
* this and continues to call this function, the behavior is undefined
* (although it won't crash).
*/
-static android_log_list_element android_log_read_next_internal(android_log_context ctx, int peek) {
+static android_log_list_element android_log_read_next_internal(android_log_context context,
+ int peek) {
android_log_list_element elem;
unsigned pos;
- android_log_context_internal* context;
-
- context = (android_log_context_internal*)ctx;
memset(&elem, 0, sizeof(elem));
diff --git a/liblog/logd_reader.cpp b/liblog/logd_reader.cpp
index 619cf8c..eaa157a 100644
--- a/liblog/logd_reader.cpp
+++ b/liblog/logd_reader.cpp
@@ -39,47 +39,43 @@
#include "logd_reader.h"
#include "logger.h"
-static int logdAvailable(log_id_t LogId);
-static int logdVersion(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
-static int logdRead(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, struct log_msg* log_msg);
-static int logdPoll(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp);
-static void logdClose(struct android_log_logger_list* logger_list,
+static int LogdAvailable(log_id_t LogId);
+static int LogdVersion(struct logger* logger, struct android_log_transport_context* transp);
+static int LogdRead(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ struct log_msg* log_msg);
+static int LogdPoll(struct logger_list* logger_list, struct android_log_transport_context* transp);
+static void LogdClose(struct logger_list* logger_list,
struct android_log_transport_context* transp);
-static int logdClear(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
-static ssize_t logdSetSize(struct android_log_logger* logger,
- struct android_log_transport_context* transp, size_t size);
-static ssize_t logdGetSize(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
-static ssize_t logdGetReadableSize(struct android_log_logger* logger,
+static int LogdClear(struct logger* logger, struct android_log_transport_context* transp);
+static ssize_t LogdSetSize(struct logger* logger, struct android_log_transport_context* transp,
+ size_t size);
+static ssize_t LogdGetSize(struct logger* logger, struct android_log_transport_context* transp);
+static ssize_t LogdGetReadableSize(struct logger* logger,
struct android_log_transport_context* transp);
-static ssize_t logdGetPrune(struct android_log_logger_list* logger,
+static ssize_t LogdGetPrune(struct logger_list* logger,
struct android_log_transport_context* transp, char* buf, size_t len);
-static ssize_t logdSetPrune(struct android_log_logger_list* logger,
+static ssize_t LogdSetPrune(struct logger_list* logger,
struct android_log_transport_context* transp, char* buf, size_t len);
-static ssize_t logdGetStats(struct android_log_logger_list* logger,
+static ssize_t LogdGetStats(struct logger_list* logger,
struct android_log_transport_context* transp, char* buf, size_t len);
struct android_log_transport_read logdLoggerRead = {
.name = "logd",
- .available = logdAvailable,
- .version = logdVersion,
- .close = logdClose,
- .read = logdRead,
- .poll = logdPoll,
- .clear = logdClear,
- .setSize = logdSetSize,
- .getSize = logdGetSize,
- .getReadableSize = logdGetReadableSize,
- .getPrune = logdGetPrune,
- .setPrune = logdSetPrune,
- .getStats = logdGetStats,
+ .available = LogdAvailable,
+ .version = LogdVersion,
+ .close = LogdClose,
+ .read = LogdRead,
+ .poll = LogdPoll,
+ .clear = LogdClear,
+ .setSize = LogdSetSize,
+ .getSize = LogdGetSize,
+ .getReadableSize = LogdGetReadableSize,
+ .getPrune = LogdGetPrune,
+ .setPrune = LogdSetPrune,
+ .getStats = LogdGetStats,
};
-static int logdAvailable(log_id_t logId) {
+static int LogdAvailable(log_id_t logId) {
if (logId >= LOG_ID_MAX) {
return -EINVAL;
}
@@ -120,8 +116,7 @@
}
/* worker for sending the command to the logger */
-static ssize_t send_log_msg(struct android_log_logger* logger, const char* msg, char* buf,
- size_t buf_size) {
+static ssize_t send_log_msg(struct logger* logger, const char* msg, char* buf, size_t buf_size) {
ssize_t ret;
size_t len;
char* cp;
@@ -202,16 +197,14 @@
return 0;
}
-static int logdClear(struct android_log_logger* logger,
- struct android_log_transport_context* transp __unused) {
+static int LogdClear(struct logger* logger, struct android_log_transport_context*) {
char buf[512];
return check_log_success(buf, send_log_msg(logger, "clear %d", buf, sizeof(buf)));
}
/* returns the total size of the log's ring buffer */
-static ssize_t logdGetSize(struct android_log_logger* logger,
- struct android_log_transport_context* transp __unused) {
+static ssize_t LogdGetSize(struct logger* logger, struct android_log_transport_context*) {
char buf[512];
ssize_t ret = send_log_msg(logger, "getLogSize %d", buf, sizeof(buf));
@@ -226,8 +219,8 @@
return atol(buf);
}
-static ssize_t logdSetSize(struct android_log_logger* logger,
- struct android_log_transport_context* transp __unused, size_t size) {
+static ssize_t LogdSetSize(struct logger* logger, struct android_log_transport_context*,
+ size_t size) {
char buf[512];
snprintf(buf, sizeof(buf), "setLogSize %d %zu", logger->logId, size);
@@ -239,8 +232,7 @@
* returns the readable size of the log's ring buffer (that is, amount of the
* log consumed)
*/
-static ssize_t logdGetReadableSize(struct android_log_logger* logger,
- struct android_log_transport_context* transp __unused) {
+static ssize_t LogdGetReadableSize(struct logger* logger, struct android_log_transport_context*) {
char buf[512];
ssize_t ret = send_log_msg(logger, "getLogSizeUsed %d", buf, sizeof(buf));
@@ -258,8 +250,7 @@
/*
* returns the logger version
*/
-static int logdVersion(struct android_log_logger* logger __unused,
- struct android_log_transport_context* transp __unused) {
+static int LogdVersion(struct logger*, struct android_log_transport_context*) {
uid_t uid = __android_log_uid();
return ((uid != AID_ROOT) && (uid != AID_LOG) && (uid != AID_SYSTEM)) ? 3 : 4;
}
@@ -267,10 +258,9 @@
/*
* returns statistics
*/
-static ssize_t logdGetStats(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp __unused, char* buf,
- size_t len) {
- struct android_log_logger* logger;
+static ssize_t LogdGetStats(struct logger_list* logger_list, struct android_log_transport_context*,
+ char* buf, size_t len) {
+ struct logger* logger;
char* cp = buf;
size_t remaining = len;
size_t n;
@@ -294,14 +284,12 @@
return send_log_msg(NULL, NULL, buf, len);
}
-static ssize_t logdGetPrune(struct android_log_logger_list* logger_list __unused,
- struct android_log_transport_context* transp __unused, char* buf,
+static ssize_t LogdGetPrune(struct logger_list*, struct android_log_transport_context*, char* buf,
size_t len) {
return send_log_msg(NULL, "getPruneList", buf, len);
}
-static ssize_t logdSetPrune(struct android_log_logger_list* logger_list __unused,
- struct android_log_transport_context* transp __unused, char* buf,
+static ssize_t LogdSetPrune(struct logger_list*, struct android_log_transport_context*, char* buf,
size_t len) {
const char cmd[] = "setPruneList ";
const size_t cmdlen = sizeof(cmd) - 1;
@@ -316,9 +304,8 @@
return check_log_success(buf, send_log_msg(NULL, NULL, buf, len));
}
-static int logdOpen(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp) {
- struct android_log_logger* logger;
+static int logdOpen(struct logger_list* logger_list, struct android_log_transport_context* transp) {
+ struct logger* logger;
char buffer[256], *cp, c;
int ret, remaining, sock;
@@ -404,8 +391,8 @@
}
/* Read from the selected logs */
-static int logdRead(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, struct log_msg* log_msg) {
+static int LogdRead(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ struct log_msg* log_msg) {
int ret = logdOpen(logger_list, transp);
if (ret < 0) {
return ret;
@@ -425,8 +412,7 @@
return ret;
}
-static int logdPoll(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp) {
+static int LogdPoll(struct logger_list* logger_list, struct android_log_transport_context* transp) {
struct pollfd p;
int ret = logdOpen(logger_list, transp);
@@ -448,8 +434,7 @@
}
/* Close all the logs */
-static void logdClose(struct android_log_logger_list* logger_list __unused,
- struct android_log_transport_context* transp) {
+static void LogdClose(struct logger_list*, struct android_log_transport_context* transp) {
int sock = atomic_exchange(&transp->context.sock, -1);
if (sock > 0) {
close(sock);
diff --git a/liblog/logger.h b/liblog/logger.h
index 02cad22..9c488b6 100644
--- a/liblog/logger.h
+++ b/liblog/logger.h
@@ -46,49 +46,37 @@
size_t nr);
};
-struct android_log_logger_list;
struct android_log_transport_context;
-struct android_log_logger;
struct android_log_transport_read {
const char* name; /* human name to describe the transport */
/* Does not cause resources to be taken */
int (*available)(log_id_t logId);
- int (*version)(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
+ int (*version)(struct logger* logger, struct android_log_transport_context* transp);
/* Release resources taken by the following interfaces */
- void (*close)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp);
+ void (*close)(struct logger_list* logger_list, struct android_log_transport_context* transp);
/*
* Expect all to instantiate open automagically on any call,
* so we do not have an explicit open call.
*/
- int (*read)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp,
+ int (*read)(struct logger_list* logger_list, struct android_log_transport_context* transp,
struct log_msg* log_msg);
/* Must only be called if not ANDROID_LOG_NONBLOCK (blocking) */
- int (*poll)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp);
+ int (*poll)(struct logger_list* logger_list, struct android_log_transport_context* transp);
- int (*clear)(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
- ssize_t (*setSize)(struct android_log_logger* logger,
- struct android_log_transport_context* transp, size_t size);
- ssize_t (*getSize)(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
- ssize_t (*getReadableSize)(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
+ int (*clear)(struct logger* logger, struct android_log_transport_context* transp);
+ ssize_t (*setSize)(struct logger* logger, struct android_log_transport_context* transp,
+ size_t size);
+ ssize_t (*getSize)(struct logger* logger, struct android_log_transport_context* transp);
+ ssize_t (*getReadableSize)(struct logger* logger, struct android_log_transport_context* transp);
- ssize_t (*getPrune)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, char* buf,
- size_t len);
- ssize_t (*setPrune)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, char* buf,
- size_t len);
- ssize_t (*getStats)(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, char* buf,
- size_t len);
+ ssize_t (*getPrune)(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ char* buf, size_t len);
+ ssize_t (*setPrune)(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ char* buf, size_t len);
+ ssize_t (*getStats)(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ char* buf, size_t len);
};
struct android_log_transport_context {
@@ -98,7 +86,7 @@
unsigned logMask; /* mask of requested log buffers */
};
-struct android_log_logger_list {
+struct logger_list {
struct listnode logger;
android_log_transport_context transport_context;
bool transport_initialized;
@@ -108,22 +96,19 @@
pid_t pid;
};
-struct android_log_logger {
+struct logger {
struct listnode node;
- struct android_log_logger_list* parent;
+ struct logger_list* parent;
log_id_t logId;
};
/* assumes caller has structures read-locked, single threaded, or fenced */
-#define logger_for_each(logp, logger_list) \
- for ((logp) = node_to_item((logger_list)->logger.next, \
- struct android_log_logger, node); \
- ((logp) != node_to_item(&(logger_list)->logger, \
- struct android_log_logger, node)) && \
- ((logp)->parent == (logger_list)); \
- (logp) = \
- node_to_item((logp)->node.next, struct android_log_logger, node))
+#define logger_for_each(logp, logger_list) \
+ for ((logp) = node_to_item((logger_list)->logger.next, struct logger, node); \
+ ((logp) != node_to_item(&(logger_list)->logger, struct logger, node)) && \
+ ((logp)->parent == (logger_list)); \
+ (logp) = node_to_item((logp)->node.next, struct logger, node))
/* OS specific dribs and drabs */
diff --git a/liblog/logger_read.cpp b/liblog/logger_read.cpp
index e8a89eb..71362bb 100644
--- a/liblog/logger_read.cpp
+++ b/liblog/logger_read.cpp
@@ -35,25 +35,23 @@
/* android_logger_alloc unimplemented, no use case */
/* android_logger_free not exported */
static void android_logger_free(struct logger* logger) {
- struct android_log_logger* logger_internal = (struct android_log_logger*)logger;
-
- if (!logger_internal) {
+ if (!logger) {
return;
}
- list_remove(&logger_internal->node);
+ list_remove(&logger->node);
- free(logger_internal);
+ free(logger);
}
/* android_logger_alloc unimplemented, no use case */
/* method for getting the associated sublog id */
log_id_t android_logger_get_id(struct logger* logger) {
- return ((struct android_log_logger*)logger)->logId;
+ return ((struct logger*)logger)->logId;
}
-static int init_transport_context(struct android_log_logger_list* logger_list) {
+static int init_transport_context(struct logger_list* logger_list) {
if (!logger_list) {
return -EINVAL;
}
@@ -73,7 +71,7 @@
struct android_log_transport_read* transport;
transport = (logger_list->mode & ANDROID_LOG_PSTORE) ? &pmsgLoggerRead : &logdLoggerRead;
- struct android_log_logger* logger;
+ struct logger* logger;
unsigned logMask = 0;
logger_for_each(logger, logger_list) {
@@ -96,28 +94,26 @@
return 0;
}
-#define LOGGER_FUNCTION(logger, def, func, args...) \
- ssize_t ret = -EINVAL; \
- android_log_logger* logger_internal = reinterpret_cast<android_log_logger*>(logger); \
- \
- if (!logger_internal) { \
- return ret; \
- } \
- ret = init_transport_context(logger_internal->parent); \
- if (ret < 0) { \
- return ret; \
- } \
- \
- ret = (def); \
- android_log_transport_context* transport_context = &logger_internal->parent->transport_context; \
- if (transport_context->logMask & (1 << logger_internal->logId) && \
- transport_context->transport && transport_context->transport->func) { \
- ssize_t retval = \
- (transport_context->transport->func)(logger_internal, transport_context, ##args); \
- if (ret >= 0 || ret == (def)) { \
- ret = retval; \
- } \
- } \
+#define LOGGER_FUNCTION(logger, def, func, args...) \
+ ssize_t ret = -EINVAL; \
+ \
+ if (!logger) { \
+ return ret; \
+ } \
+ ret = init_transport_context(logger->parent); \
+ if (ret < 0) { \
+ return ret; \
+ } \
+ \
+ ret = (def); \
+ android_log_transport_context* transport_context = &logger->parent->transport_context; \
+ if (transport_context->logMask & (1 << logger->logId) && transport_context->transport && \
+ transport_context->transport->func) { \
+ ssize_t retval = (transport_context->transport->func)(logger, transport_context, ##args); \
+ if (ret >= 0 || ret == (def)) { \
+ ret = retval; \
+ } \
+ } \
return ret
int android_logger_clear(struct logger* logger) {
@@ -148,24 +144,20 @@
LOGGER_FUNCTION(logger, 4, version);
}
-#define LOGGER_LIST_FUNCTION(logger_list, def, func, args...) \
- android_log_logger_list* logger_list_internal = \
- reinterpret_cast<android_log_logger_list*>(logger_list); \
- \
- ssize_t ret = init_transport_context(logger_list_internal); \
- if (ret < 0) { \
- return ret; \
- } \
- \
- ret = (def); \
- android_log_transport_context* transport_context = &logger_list_internal->transport_context; \
- if (transport_context->transport && transport_context->transport->func) { \
- ssize_t retval = \
- (transport_context->transport->func)(logger_list_internal, transport_context, ##args); \
- if (ret >= 0 || ret == (def)) { \
- ret = retval; \
- } \
- } \
+#define LOGGER_LIST_FUNCTION(logger_list, def, func, args...) \
+ ssize_t ret = init_transport_context(logger_list); \
+ if (ret < 0) { \
+ return ret; \
+ } \
+ \
+ ret = (def); \
+ android_log_transport_context* transport_context = &logger_list->transport_context; \
+ if (transport_context->transport && transport_context->transport->func) { \
+ ssize_t retval = (transport_context->transport->func)(logger_list, transport_context, ##args); \
+ if (ret >= 0 || ret == (def)) { \
+ ret = retval; \
+ } \
+ } \
return ret
/*
@@ -184,9 +176,9 @@
}
struct logger_list* android_logger_list_alloc(int mode, unsigned int tail, pid_t pid) {
- struct android_log_logger_list* logger_list;
+ struct logger_list* logger_list;
- logger_list = static_cast<android_log_logger_list*>(calloc(1, sizeof(*logger_list)));
+ logger_list = static_cast<struct logger_list*>(calloc(1, sizeof(*logger_list)));
if (!logger_list) {
return NULL;
}
@@ -196,13 +188,13 @@
logger_list->tail = tail;
logger_list->pid = pid;
- return (struct logger_list*)logger_list;
+ return logger_list;
}
struct logger_list* android_logger_list_alloc_time(int mode, log_time start, pid_t pid) {
- struct android_log_logger_list* logger_list;
+ struct logger_list* logger_list;
- logger_list = static_cast<android_log_logger_list*>(calloc(1, sizeof(*logger_list)));
+ logger_list = static_cast<struct logger_list*>(calloc(1, sizeof(*logger_list)));
if (!logger_list) {
return NULL;
}
@@ -212,7 +204,7 @@
logger_list->start = start;
logger_list->pid = pid;
- return (struct logger_list*)logger_list;
+ return logger_list;
}
/* android_logger_list_register unimplemented, no use case */
@@ -220,33 +212,31 @@
/* Open the named log and add it to the logger list */
struct logger* android_logger_open(struct logger_list* logger_list, log_id_t logId) {
- struct android_log_logger_list* logger_list_internal =
- (struct android_log_logger_list*)logger_list;
- struct android_log_logger* logger;
+ struct logger* logger;
- if (!logger_list_internal || (logId >= LOG_ID_MAX)) {
+ if (!logger_list || (logId >= LOG_ID_MAX)) {
return nullptr;
}
- logger_for_each(logger, logger_list_internal) {
+ logger_for_each(logger, logger_list) {
if (logger->logId == logId) {
return reinterpret_cast<struct logger*>(logger);
}
}
- logger = static_cast<android_log_logger*>(calloc(1, sizeof(*logger)));
+ logger = static_cast<struct logger*>(calloc(1, sizeof(*logger)));
if (!logger) {
return nullptr;
}
logger->logId = logId;
- list_add_tail(&logger_list_internal->logger, &logger->node);
- logger->parent = logger_list_internal;
+ list_add_tail(&logger_list->logger, &logger->node);
+ logger->parent = logger_list;
// Reset known transport to re-evaluate, since we added a new logger.
- logger_list_internal->transport_initialized = false;
+ logger_list->transport_initialized = false;
- return (struct logger*)logger;
+ return logger;
}
/* Open the single named log and make it part of a new logger list */
@@ -267,7 +257,7 @@
}
/* Validate log_msg packet, read function has already been null checked */
-static int android_transport_read(struct android_log_logger_list* logger_list,
+static int android_transport_read(struct logger_list* logger_list,
struct android_log_transport_context* transp,
struct log_msg* log_msg) {
int ret = (*transp->transport->read)(logger_list, transp, log_msg);
@@ -297,38 +287,32 @@
/* Read from the selected logs */
int android_logger_list_read(struct logger_list* logger_list, struct log_msg* log_msg) {
- struct android_log_logger_list* logger_list_internal =
- (struct android_log_logger_list*)logger_list;
-
- int ret = init_transport_context(logger_list_internal);
+ int ret = init_transport_context(logger_list);
if (ret < 0) {
return ret;
}
- android_log_transport_context* transport_context = &logger_list_internal->transport_context;
- return android_transport_read(logger_list_internal, transport_context, log_msg);
+ android_log_transport_context* transport_context = &logger_list->transport_context;
+ return android_transport_read(logger_list, transport_context, log_msg);
}
/* Close all the logs */
void android_logger_list_free(struct logger_list* logger_list) {
- struct android_log_logger_list* logger_list_internal =
- (struct android_log_logger_list*)logger_list;
-
- if (logger_list_internal == NULL) {
+ if (logger_list == NULL) {
return;
}
- android_log_transport_context* transport_context = &logger_list_internal->transport_context;
+ android_log_transport_context* transport_context = &logger_list->transport_context;
if (transport_context->transport && transport_context->transport->close) {
- (*transport_context->transport->close)(logger_list_internal, transport_context);
+ (*transport_context->transport->close)(logger_list, transport_context);
}
- while (!list_empty(&logger_list_internal->logger)) {
- struct listnode* node = list_head(&logger_list_internal->logger);
- struct android_log_logger* logger = node_to_item(node, struct android_log_logger, node);
+ while (!list_empty(&logger_list->logger)) {
+ struct listnode* node = list_head(&logger_list->logger);
+ struct logger* logger = node_to_item(node, struct logger, node);
android_logger_free((struct logger*)logger);
}
- free(logger_list_internal);
+ free(logger_list);
}
diff --git a/liblog/pmsg_reader.cpp b/liblog/pmsg_reader.cpp
index f43ce3a..cd83161 100644
--- a/liblog/pmsg_reader.cpp
+++ b/liblog/pmsg_reader.cpp
@@ -26,24 +26,22 @@
#include "logger.h"
-static int pmsgAvailable(log_id_t logId);
-static int pmsgVersion(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
-static int pmsgRead(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, struct log_msg* log_msg);
-static void pmsgClose(struct android_log_logger_list* logger_list,
+static int PmsgAvailable(log_id_t logId);
+static int PmsgVersion(struct logger* logger, struct android_log_transport_context* transp);
+static int PmsgRead(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ struct log_msg* log_msg);
+static void PmsgClose(struct logger_list* logger_list,
struct android_log_transport_context* transp);
-static int pmsgClear(struct android_log_logger* logger,
- struct android_log_transport_context* transp);
+static int PmsgClear(struct logger* logger, struct android_log_transport_context* transp);
struct android_log_transport_read pmsgLoggerRead = {
.name = "pmsg",
- .available = pmsgAvailable,
- .version = pmsgVersion,
- .close = pmsgClose,
- .read = pmsgRead,
+ .available = PmsgAvailable,
+ .version = PmsgVersion,
+ .close = PmsgClose,
+ .read = PmsgRead,
.poll = NULL,
- .clear = pmsgClear,
+ .clear = PmsgClear,
.setSize = NULL,
.getSize = NULL,
.getReadableSize = NULL,
@@ -52,7 +50,7 @@
.getStats = NULL,
};
-static int pmsgAvailable(log_id_t logId) {
+static int PmsgAvailable(log_id_t logId) {
if (logId > LOG_ID_SECURITY) {
return -EINVAL;
}
@@ -62,21 +60,19 @@
return -EBADF;
}
-static int pmsgClear(struct android_log_logger* logger __unused,
- struct android_log_transport_context* transp __unused) {
+static int PmsgClear(struct logger*, struct android_log_transport_context*) {
return unlink("/sys/fs/pstore/pmsg-ramoops-0");
}
/*
* returns the logger version
*/
-static int pmsgVersion(struct android_log_logger* logger __unused,
- struct android_log_transport_context* transp __unused) {
+static int PmsgVersion(struct logger*, struct android_log_transport_context*) {
return 4;
}
-static int pmsgRead(struct android_log_logger_list* logger_list,
- struct android_log_transport_context* transp, struct log_msg* log_msg) {
+static int PmsgRead(struct logger_list* logger_list, struct android_log_transport_context* transp,
+ struct log_msg* log_msg) {
ssize_t ret;
off_t current, next;
struct __attribute__((__packed__)) {
@@ -192,8 +188,7 @@
}
}
-static void pmsgClose(struct android_log_logger_list* logger_list __unused,
- struct android_log_transport_context* transp) {
+static void PmsgClose(struct logger_list*, struct android_log_transport_context* transp) {
int fd = atomic_exchange(&transp->context.fd, 0);
if (fd > 0) {
close(fd);
@@ -211,7 +206,7 @@
ssize_t __android_log_pmsg_file_read(log_id_t logId, char prio, const char* prefix,
__android_log_pmsg_file_read_fn fn, void* arg) {
ssize_t ret;
- struct android_log_logger_list logger_list;
+ struct logger_list logger_list;
struct android_log_transport_context transp;
struct content {
struct listnode node;
@@ -268,7 +263,7 @@
/* Read the file content */
log_msg log_msg;
- while (pmsgRead(&logger_list, &transp, &log_msg) > 0) {
+ while (PmsgRead(&logger_list, &transp, &log_msg) > 0) {
const char* cp;
size_t hdr_size = log_msg.entry.hdr_size;
@@ -426,7 +421,7 @@
}
list_add_head(node, &content->node);
}
- pmsgClose(&logger_list, &transp);
+ PmsgClose(&logger_list, &transp);
/* Progress through all the collected files */
list_for_each_safe(node, n, &name_list) {
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 674b737..6b61472 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -935,7 +935,6 @@
on userspace-reboot-requested
# TODO(b/135984674): reset all necessary properties here.
- setprop sys.init.userspace_reboot_in_progress 1
setprop sys.boot_completed 0
setprop sys.init.updatable_crashing 0
setprop apexd.status ""
@@ -955,3 +954,6 @@
trigger zygote-start
trigger early-boot
trigger boot
+
+on property:sys.boot_completed=1 && property:sys.init.userspace_reboot.in_progress=1
+ finish_userspace_reboot