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-rw-r--r--updater/updater_runtime_dynamic_partitions.cpp127
1 files changed, 70 insertions, 57 deletions
diff --git a/updater/updater_runtime_dynamic_partitions.cpp b/updater/updater_runtime_dynamic_partitions.cpp
index be9250a81..6570cfffd 100644
--- a/updater/updater_runtime_dynamic_partitions.cpp
+++ b/updater/updater_runtime_dynamic_partitions.cpp
@@ -41,6 +41,7 @@ using android::fs_mgr::LpMetadata;
using android::fs_mgr::MetadataBuilder;
using android::fs_mgr::Partition;
using android::fs_mgr::PartitionOpener;
+using android::fs_mgr::SlotNumberForSlotSuffix;
static constexpr std::chrono::milliseconds kMapTimeout{ 1000 };
@@ -48,13 +49,17 @@ static std::string GetSuperDevice() {
return "/dev/block/by-name/" + fs_mgr_get_super_partition_name();
}
-static bool UnmapPartitionOnDeviceMapper(const std::string& partition_name) {
- auto state = DeviceMapper::Instance().GetState(partition_name);
+static std::string AddSlotSuffix(const std::string& partition_name) {
+ return partition_name + fs_mgr_get_slot_suffix();
+}
+
+static bool UnmapPartitionWithSuffixOnDeviceMapper(const std::string& partition_name_suffix) {
+ auto state = DeviceMapper::Instance().GetState(partition_name_suffix);
if (state == DmDeviceState::INVALID) {
return true;
}
if (state == DmDeviceState::ACTIVE) {
- return DestroyLogicalPartition(partition_name);
+ return DestroyLogicalPartition(partition_name_suffix);
}
LOG(ERROR) << "Unknown device mapper state: "
<< static_cast<std::underlying_type_t<DmDeviceState>>(state);
@@ -63,12 +68,17 @@ static bool UnmapPartitionOnDeviceMapper(const std::string& partition_name) {
bool UpdaterRuntime::MapPartitionOnDeviceMapper(const std::string& partition_name,
std::string* path) {
- auto state = DeviceMapper::Instance().GetState(partition_name);
+ auto partition_name_suffix = AddSlotSuffix(partition_name);
+ auto state = DeviceMapper::Instance().GetState(partition_name_suffix);
if (state == DmDeviceState::INVALID) {
CreateLogicalPartitionParams params = {
.block_device = GetSuperDevice(),
- .metadata_slot = 0,
- .partition_name = partition_name,
+ // If device supports A/B, apply non-A/B update to the partition at current slot. Otherwise,
+ // SlotNumberForSlotSuffix("") returns 0.
+ .metadata_slot = SlotNumberForSlotSuffix(fs_mgr_get_slot_suffix()),
+ // If device supports A/B, apply non-A/B update to the partition at current slot. Otherwise,
+ // fs_mgr_get_slot_suffix() returns empty string.
+ .partition_name = partition_name_suffix,
.force_writable = true,
.timeout_ms = kMapTimeout,
};
@@ -76,7 +86,7 @@ bool UpdaterRuntime::MapPartitionOnDeviceMapper(const std::string& partition_nam
}
if (state == DmDeviceState::ACTIVE) {
- return DeviceMapper::Instance().GetDmDevicePathByName(partition_name, path);
+ return DeviceMapper::Instance().GetDmDevicePathByName(partition_name_suffix, path);
}
LOG(ERROR) << "Unknown device mapper state: "
<< static_cast<std::underlying_type_t<DmDeviceState>>(state);
@@ -84,7 +94,7 @@ bool UpdaterRuntime::MapPartitionOnDeviceMapper(const std::string& partition_nam
}
bool UpdaterRuntime::UnmapPartitionOnDeviceMapper(const std::string& partition_name) {
- return ::UnmapPartitionOnDeviceMapper(partition_name);
+ return ::UnmapPartitionWithSuffixOnDeviceMapper(AddSlotSuffix(partition_name));
}
namespace { // Ops
@@ -126,22 +136,23 @@ using OpMap = std::map<std::string, OpFunction>;
bool PerformOpResize(const OpParameters& params) {
if (!params.ExpectArgSize(2)) return false;
- const auto& partition_name = params.arg(0);
+ const auto& partition_name_suffix = AddSlotSuffix(params.arg(0));
auto size = params.uint_arg(1, "size");
if (!size.has_value()) return false;
- auto partition = params.builder->FindPartition(partition_name);
+ auto partition = params.builder->FindPartition(partition_name_suffix);
if (partition == nullptr) {
- LOG(ERROR) << "Failed to find partition " << partition_name
+ LOG(ERROR) << "Failed to find partition " << partition_name_suffix
<< " in dynamic partition metadata.";
return false;
}
- if (!UnmapPartitionOnDeviceMapper(partition_name)) {
- LOG(ERROR) << "Cannot unmap " << partition_name << " before resizing.";
+ if (!UnmapPartitionWithSuffixOnDeviceMapper(partition_name_suffix)) {
+ LOG(ERROR) << "Cannot unmap " << partition_name_suffix << " before resizing.";
return false;
}
if (!params.builder->ResizePartition(partition, size.value())) {
- LOG(ERROR) << "Failed to resize partition " << partition_name << " to size " << *size << ".";
+ LOG(ERROR) << "Failed to resize partition " << partition_name_suffix << " to size " << *size
+ << ".";
return false;
}
return true;
@@ -149,24 +160,25 @@ bool PerformOpResize(const OpParameters& params) {
bool PerformOpRemove(const OpParameters& params) {
if (!params.ExpectArgSize(1)) return false;
- const auto& partition_name = params.arg(0);
+ const auto& partition_name_suffix = AddSlotSuffix(params.arg(0));
- if (!UnmapPartitionOnDeviceMapper(partition_name)) {
- LOG(ERROR) << "Cannot unmap " << partition_name << " before removing.";
+ if (!UnmapPartitionWithSuffixOnDeviceMapper(partition_name_suffix)) {
+ LOG(ERROR) << "Cannot unmap " << partition_name_suffix << " before removing.";
return false;
}
- params.builder->RemovePartition(partition_name);
+ params.builder->RemovePartition(partition_name_suffix);
return true;
}
bool PerformOpAdd(const OpParameters& params) {
if (!params.ExpectArgSize(2)) return false;
- const auto& partition_name = params.arg(0);
- const auto& group_name = params.arg(1);
+ const auto& partition_name_suffix = AddSlotSuffix(params.arg(0));
+ const auto& group_name_suffix = AddSlotSuffix(params.arg(1));
- if (params.builder->AddPartition(partition_name, group_name, LP_PARTITION_ATTR_READONLY) ==
- nullptr) {
- LOG(ERROR) << "Failed to add partition " << partition_name << " to group " << group_name << ".";
+ if (params.builder->AddPartition(partition_name_suffix, group_name_suffix,
+ LP_PARTITION_ATTR_READONLY) == nullptr) {
+ LOG(ERROR) << "Failed to add partition " << partition_name_suffix << " to group "
+ << group_name_suffix << ".";
return false;
}
return true;
@@ -174,21 +186,21 @@ bool PerformOpAdd(const OpParameters& params) {
bool PerformOpMove(const OpParameters& params) {
if (!params.ExpectArgSize(2)) return false;
- const auto& partition_name = params.arg(0);
- const auto& new_group = params.arg(1);
+ const auto& partition_name_suffix = AddSlotSuffix(params.arg(0));
+ const auto& new_group_name_suffix = AddSlotSuffix(params.arg(1));
- auto partition = params.builder->FindPartition(partition_name);
+ auto partition = params.builder->FindPartition(partition_name_suffix);
if (partition == nullptr) {
- LOG(ERROR) << "Cannot move partition " << partition_name << " to group " << new_group
- << " because it is not found.";
+ LOG(ERROR) << "Cannot move partition " << partition_name_suffix << " to group "
+ << new_group_name_suffix << " because it is not found.";
return false;
}
- auto old_group = partition->group_name();
- if (old_group != new_group) {
- if (!params.builder->ChangePartitionGroup(partition, new_group)) {
- LOG(ERROR) << "Cannot move partition " << partition_name << " from group " << old_group
- << " to group " << new_group << ".";
+ auto old_group_name_suffix = partition->group_name();
+ if (old_group_name_suffix != new_group_name_suffix) {
+ if (!params.builder->ChangePartitionGroup(partition, new_group_name_suffix)) {
+ LOG(ERROR) << "Cannot move partition " << partition_name_suffix << " from group "
+ << old_group_name_suffix << " to group " << new_group_name_suffix << ".";
return false;
}
}
@@ -197,22 +209,22 @@ bool PerformOpMove(const OpParameters& params) {
bool PerformOpAddGroup(const OpParameters& params) {
if (!params.ExpectArgSize(2)) return false;
- const auto& group_name = params.arg(0);
+ const auto& group_name_suffix = AddSlotSuffix(params.arg(0));
auto maximum_size = params.uint_arg(1, "maximum_size");
if (!maximum_size.has_value()) return false;
- auto group = params.builder->FindGroup(group_name);
+ auto group = params.builder->FindGroup(group_name_suffix);
if (group != nullptr) {
- LOG(ERROR) << "Cannot add group " << group_name << " because it already exists.";
+ LOG(ERROR) << "Cannot add group " << group_name_suffix << " because it already exists.";
return false;
}
if (maximum_size.value() == 0) {
- LOG(WARNING) << "Adding group " << group_name << " with no size limits.";
+ LOG(WARNING) << "Adding group " << group_name_suffix << " with no size limits.";
}
- if (!params.builder->AddGroup(group_name, maximum_size.value())) {
- LOG(ERROR) << "Failed to add group " << group_name << " with maximum size "
+ if (!params.builder->AddGroup(group_name_suffix, maximum_size.value())) {
+ LOG(ERROR) << "Failed to add group " << group_name_suffix << " with maximum size "
<< maximum_size.value() << ".";
return false;
}
@@ -221,20 +233,20 @@ bool PerformOpAddGroup(const OpParameters& params) {
bool PerformOpResizeGroup(const OpParameters& params) {
if (!params.ExpectArgSize(2)) return false;
- const auto& group_name = params.arg(0);
+ const auto& group_name_suffix = AddSlotSuffix(params.arg(0));
auto new_size = params.uint_arg(1, "maximum_size");
if (!new_size.has_value()) return false;
- auto group = params.builder->FindGroup(group_name);
+ auto group = params.builder->FindGroup(group_name_suffix);
if (group == nullptr) {
- LOG(ERROR) << "Cannot resize group " << group_name << " because it is not found.";
+ LOG(ERROR) << "Cannot resize group " << group_name_suffix << " because it is not found.";
return false;
}
auto old_size = group->maximum_size();
if (old_size != new_size.value()) {
- if (!params.builder->ChangeGroupSize(group_name, new_size.value())) {
- LOG(ERROR) << "Cannot resize group " << group_name << " from " << old_size << " to "
+ if (!params.builder->ChangeGroupSize(group_name_suffix, new_size.value())) {
+ LOG(ERROR) << "Cannot resize group " << group_name_suffix << " from " << old_size << " to "
<< new_size.value() << ".";
return false;
}
@@ -243,8 +255,8 @@ bool PerformOpResizeGroup(const OpParameters& params) {
}
std::vector<std::string> ListPartitionNamesInGroup(MetadataBuilder* builder,
- const std::string& group_name) {
- auto partitions = builder->ListPartitionsInGroup(group_name);
+ const std::string& group_name_suffix) {
+ auto partitions = builder->ListPartitionsInGroup(group_name_suffix);
std::vector<std::string> partition_names;
std::transform(partitions.begin(), partitions.end(), std::back_inserter(partition_names),
[](Partition* partition) { return partition->name(); });
@@ -253,15 +265,16 @@ std::vector<std::string> ListPartitionNamesInGroup(MetadataBuilder* builder,
bool PerformOpRemoveGroup(const OpParameters& params) {
if (!params.ExpectArgSize(1)) return false;
- const auto& group_name = params.arg(0);
+ const auto& group_name_suffix = AddSlotSuffix(params.arg(0));
- auto partition_names = ListPartitionNamesInGroup(params.builder, group_name);
+ auto partition_names = ListPartitionNamesInGroup(params.builder, group_name_suffix);
if (!partition_names.empty()) {
- LOG(ERROR) << "Cannot remove group " << group_name << " because it still contains partitions ["
+ LOG(ERROR) << "Cannot remove group " << group_name_suffix
+ << " because it still contains partitions ["
<< android::base::Join(partition_names, ", ") << "]";
return false;
}
- params.builder->RemoveGroupAndPartitions(group_name);
+ params.builder->RemoveGroupAndPartitions(group_name_suffix);
return true;
}
@@ -269,16 +282,16 @@ bool PerformOpRemoveAllGroups(const OpParameters& params) {
if (!params.ExpectArgSize(0)) return false;
auto group_names = params.builder->ListGroups();
- for (const auto& group_name : group_names) {
- auto partition_names = ListPartitionNamesInGroup(params.builder, group_name);
- for (const auto& partition_name : partition_names) {
- if (!UnmapPartitionOnDeviceMapper(partition_name)) {
- LOG(ERROR) << "Cannot unmap " << partition_name << " before removing group " << group_name
- << ".";
+ for (const auto& group_name_suffix : group_names) {
+ auto partition_names = ListPartitionNamesInGroup(params.builder, group_name_suffix);
+ for (const auto& partition_name_suffix : partition_names) {
+ if (!UnmapPartitionWithSuffixOnDeviceMapper(partition_name_suffix)) {
+ LOG(ERROR) << "Cannot unmap " << partition_name_suffix << " before removing group "
+ << group_name_suffix << ".";
return false;
}
}
- params.builder->RemoveGroupAndPartitions(group_name);
+ params.builder->RemoveGroupAndPartitions(group_name_suffix);
}
return true;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 18:37:17 +0100