liblp: Remove the slot-suffix requirement in MetadataBuilder.
Normally MetadataBuilder will refuse to create non-suffixed partitions
on A/B devices. There are some scenarios where this doesn't make sense,
like when gsid needs to build metadata files for
system_gsi/userdata_gsi. It also doesn't make sense for the "scratch"
partition, so we added exceptions.
It turns out that metadata created by gsid cannot be re-imported by
MetadataBuilder, because there's no opportunity to set the "ignore" flag
in MetadataBuilder's constructor. Rather than plumbing a flag through, I
think we should just remove this error. It has too many exceptions
already and it doesn't really protect against anything. The motivation was
to avoid confusion in fastbootd on retrofit devices (where there are two
super partitions), but it's a pretty minor concern.
Bug: 134536978
Test: liblp_test gtest
Change-Id: I4629a3c46070c35bcce1017096338e72aa234371
diff --git a/fs_mgr/liblp/builder.cpp b/fs_mgr/liblp/builder.cpp
index 41c01da..25a042f 100644
--- a/fs_mgr/liblp/builder.cpp
+++ b/fs_mgr/liblp/builder.cpp
@@ -214,7 +214,7 @@
sABOverrideValue = ab_device;
}
-MetadataBuilder::MetadataBuilder() : auto_slot_suffixing_(false), ignore_slot_suffixing_(false) {
+MetadataBuilder::MetadataBuilder() : auto_slot_suffixing_(false) {
memset(&geometry_, 0, sizeof(geometry_));
geometry_.magic = LP_METADATA_GEOMETRY_MAGIC;
geometry_.struct_size = sizeof(geometry_);
@@ -443,11 +443,6 @@
LERROR << "Could not find partition group: " << group_name;
return nullptr;
}
- if (IsABDevice() && !auto_slot_suffixing_ && name != "scratch" && !ignore_slot_suffixing_ &&
- GetPartitionSlotSuffix(name).empty()) {
- LERROR << "Unsuffixed partition not allowed on A/B device: " << name;
- return nullptr;
- }
partitions_.push_back(std::make_unique<Partition>(name, group_name, attributes));
return partitions_.back().get();
}
@@ -1049,10 +1044,6 @@
auto_slot_suffixing_ = true;
}
-void MetadataBuilder::IgnoreSlotSuffixing() {
- ignore_slot_suffixing_ = true;
-}
-
bool MetadataBuilder::IsABDevice() const {
if (sABOverrideSet) {
return sABOverrideValue;
diff --git a/fs_mgr/liblp/builder_test.cpp b/fs_mgr/liblp/builder_test.cpp
index 45c3ede..34c68d4 100644
--- a/fs_mgr/liblp/builder_test.cpp
+++ b/fs_mgr/liblp/builder_test.cpp
@@ -772,15 +772,6 @@
EXPECT_FALSE(builder->ImportPartitions(*exported.get(), {"system"}));
}
-TEST_F(BuilderTest, UnsuffixedPartitions) {
- MetadataBuilder::OverrideABForTesting(true);
- unique_ptr<MetadataBuilder> builder = MetadataBuilder::New(1024 * 1024, 1024, 2);
- ASSERT_NE(builder, nullptr);
-
- ASSERT_EQ(builder->AddPartition("system", 0), nullptr);
- ASSERT_NE(builder->AddPartition("system_a", 0), nullptr);
-}
-
TEST_F(BuilderTest, ABExtents) {
BlockDeviceInfo device_info("super", 10_GiB, 768 * 1024, 0, 4096);
diff --git a/fs_mgr/liblp/include/liblp/builder.h b/fs_mgr/liblp/include/liblp/builder.h
index c706f2a..e70c552 100644
--- a/fs_mgr/liblp/include/liblp/builder.h
+++ b/fs_mgr/liblp/include/liblp/builder.h
@@ -345,7 +345,6 @@
std::vector<std::unique_ptr<PartitionGroup>> groups_;
std::vector<LpMetadataBlockDevice> block_devices_;
bool auto_slot_suffixing_;
- bool ignore_slot_suffixing_;
};
// Read BlockDeviceInfo for a given block device. This always returns false