Add odm and oem policies

This change adds parsing, encoding, and validating of odm and oem
overlayable policies to aapt2, libandroidfw, and idmap2.

Bug: 121033532
Test: aapt2_tests, idmap2_tests
Change-Id: Ifc0d4b6c9f9c37e06b2988abade69dbb277c50c2
diff --git a/tools/aapt2/ResourceParser.cpp b/tools/aapt2/ResourceParser.cpp
index 5e8d870..fe401e2 100644
--- a/tools/aapt2/ResourceParser.cpp
+++ b/tools/aapt2/ResourceParser.cpp
@@ -1143,34 +1143,38 @@
       } else if (Maybe<StringPiece> maybe_type = xml::FindNonEmptyAttribute(parser, "type")) {
         // Parse the polices separated by vertical bar characters to allow for specifying multiple
         // policies. Items within the policy tag will have the specified policy.
-        for (StringPiece part : util::Tokenize(maybe_type.value(), '|')) {
+        static const auto kPolicyMap =
+            ImmutableMap<StringPiece, OverlayableItem::Policy>::CreatePreSorted({
+                {"odm", OverlayableItem::Policy::kOdm},
+                {"oem", OverlayableItem::Policy::kOem},
+                {"product", OverlayableItem::Policy::kProduct},
+                {"public", OverlayableItem::Policy::kPublic},
+                {"signature", OverlayableItem::Policy::kSignature},
+                {"system", OverlayableItem::Policy::kSystem},
+                {"vendor", OverlayableItem::Policy::kVendor},
+            });
+
+        for (const StringPiece& part : util::Tokenize(maybe_type.value(), '|')) {
           StringPiece trimmed_part = util::TrimWhitespace(part);
-          if (trimmed_part == "public") {
-            current_policies |= OverlayableItem::Policy::kPublic;
-          } else if (trimmed_part == "product") {
-            current_policies |= OverlayableItem::Policy::kProduct;
-          } else if (trimmed_part == "system") {
-            current_policies |= OverlayableItem::Policy::kSystem;
-          } else if (trimmed_part == "vendor") {
-            current_policies |= OverlayableItem::Policy::kVendor;
-          } else if (trimmed_part == "signature") {
-            current_policies |= OverlayableItem::Policy::kSignature;
-          } else {
+          const auto policy = kPolicyMap.find(trimmed_part);
+          if (policy == kPolicyMap.end()) {
             diag_->Error(DiagMessage(element_source)
                          << "<policy> has unsupported type '" << trimmed_part << "'");
             error = true;
             continue;
           }
+
+          current_policies |= policy->second;
         }
       } else {
         diag_->Error(DiagMessage(element_source)
-                         << "<policy> must have a 'type' attribute");
+                     << "<policy> must have a 'type' attribute");
         error = true;
         continue;
       }
     } else if (!ShouldIgnoreElement(element_namespace, element_name)) {
       diag_->Error(DiagMessage(element_source) << "invalid element <" << element_name << "> "
-                                            << " in <overlayable>");
+                                               << " in <overlayable>");
       error = true;
       break;
     }
diff --git a/tools/aapt2/ResourceParser_test.cpp b/tools/aapt2/ResourceParser_test.cpp
index 8577921..7c8b6d0 100644
--- a/tools/aapt2/ResourceParser_test.cpp
+++ b/tools/aapt2/ResourceParser_test.cpp
@@ -971,6 +971,12 @@
         <policy type="signature">
           <item type="string" name="foz" />
         </policy>
+        <policy type="odm">
+          <item type="string" name="biz" />
+        </policy>
+        <policy type="oem">
+          <item type="string" name="buz" />
+        </policy>
       </overlayable>)";
   ASSERT_TRUE(TestParse(input));
 
@@ -1013,6 +1019,22 @@
   result_overlayable_item = search_result.value().entry->overlayable_item.value();
   EXPECT_THAT(result_overlayable_item.overlayable->name, Eq("Name"));
   EXPECT_THAT(result_overlayable_item.policies, Eq(OverlayableItem::Policy::kSignature));
+
+  search_result = table_.FindResource(test::ParseNameOrDie("string/biz"));
+  ASSERT_TRUE(search_result);
+  ASSERT_THAT(search_result.value().entry, NotNull());
+  ASSERT_TRUE(search_result.value().entry->overlayable_item);
+  result_overlayable_item = search_result.value().entry->overlayable_item.value();
+  EXPECT_THAT(result_overlayable_item.overlayable->name, Eq("Name"));
+  EXPECT_THAT(result_overlayable_item.policies, Eq(OverlayableItem::Policy::kOdm));
+
+  search_result = table_.FindResource(test::ParseNameOrDie("string/buz"));
+  ASSERT_TRUE(search_result);
+  ASSERT_THAT(search_result.value().entry, NotNull());
+  ASSERT_TRUE(search_result.value().entry->overlayable_item);
+  result_overlayable_item = search_result.value().entry->overlayable_item.value();
+  EXPECT_THAT(result_overlayable_item.overlayable->name, Eq("Name"));
+  EXPECT_THAT(result_overlayable_item.policies, Eq(OverlayableItem::Policy::kOem));
 }
 
 TEST_F(ResourceParserTest, ParseOverlayableNoPolicyError) {
diff --git a/tools/aapt2/ResourceTable.h b/tools/aapt2/ResourceTable.h
index 7ed7897..30ba1ae 100644
--- a/tools/aapt2/ResourceTable.h
+++ b/tools/aapt2/ResourceTable.h
@@ -79,22 +79,28 @@
   // Represents the types overlays that are allowed to overlay the resource.
   typedef uint32_t PolicyFlags;
   enum Policy : uint32_t {
-    kNone = 0x00,
+    kNone = 0x00000000,
 
     // The resource can be overlaid by any overlay.
-    kPublic = 0x01,
+    kPublic = 0x00000001,
 
     // The resource can be overlaid by any overlay on the system partition.
-    kSystem = 0x02,
+    kSystem = 0x00000002,
 
     // The resource can be overlaid by any overlay on the vendor partition.
-    kVendor = 0x04,
+    kVendor = 0x00000004,
 
     // The resource can be overlaid by any overlay on the product partition.
-    kProduct = 0x08,
+    kProduct = 0x00000008,
 
     // The resource can be overlaid by any overlay signed with the same signature as its actor.
-    kSignature = 0x010,
+    kSignature = 0x00000010,
+
+    // The resource can be overlaid by any overlay on the odm partition.
+    kOdm = 0x00000020,
+
+    // The resource can be overlaid by any overlay on the oem partition.
+    kOem = 0x00000040,
   };
 
   std::shared_ptr<Overlayable> overlayable;
diff --git a/tools/aapt2/Resources.proto b/tools/aapt2/Resources.proto
index a2fd7c6..12cf65b 100644
--- a/tools/aapt2/Resources.proto
+++ b/tools/aapt2/Resources.proto
@@ -157,6 +157,8 @@
     VENDOR = 3;
     PRODUCT = 4;
     SIGNATURE = 5;
+    ODM = 6;
+    OEM = 7;
   }
 
   // The location of the <item> declaration in source.
diff --git a/tools/aapt2/format/binary/BinaryResourceParser.cpp b/tools/aapt2/format/binary/BinaryResourceParser.cpp
index 59eb9ec2..fd8e36e 100644
--- a/tools/aapt2/format/binary/BinaryResourceParser.cpp
+++ b/tools/aapt2/format/binary/BinaryResourceParser.cpp
@@ -475,6 +475,14 @@
           & ResTable_overlayable_policy_header::POLICY_SIGNATURE) {
         policies |= OverlayableItem::Policy::kSignature;
       }
+      if (policy_header->policy_flags
+          & ResTable_overlayable_policy_header::POLICY_ODM_PARTITION) {
+        policies |= OverlayableItem::Policy::kOdm;
+      }
+      if (policy_header->policy_flags
+          & ResTable_overlayable_policy_header::POLICY_OEM_PARTITION) {
+        policies |= OverlayableItem::Policy::kOem;
+      }
 
       const ResTable_ref* const ref_begin = reinterpret_cast<const ResTable_ref*>(
           ((uint8_t *)policy_header) + util::DeviceToHost32(policy_header->header.headerSize));
diff --git a/tools/aapt2/format/binary/TableFlattener.cpp b/tools/aapt2/format/binary/TableFlattener.cpp
index aa578a2..f2e72da 100644
--- a/tools/aapt2/format/binary/TableFlattener.cpp
+++ b/tools/aapt2/format/binary/TableFlattener.cpp
@@ -496,6 +496,12 @@
         if (item.policies & OverlayableItem::Policy::kSignature) {
           policy_flags |= ResTable_overlayable_policy_header::POLICY_SIGNATURE;
         }
+        if (item.policies & OverlayableItem::Policy::kOdm) {
+          policy_flags |= ResTable_overlayable_policy_header::POLICY_ODM_PARTITION;
+        }
+        if (item.policies & OverlayableItem::Policy::kOem) {
+          policy_flags |= ResTable_overlayable_policy_header::POLICY_OEM_PARTITION;
+        }
 
         auto policy = overlayable_chunk->policy_ids.find(policy_flags);
         if (policy != overlayable_chunk->policy_ids.end()) {
diff --git a/tools/aapt2/format/binary/TableFlattener_test.cpp b/tools/aapt2/format/binary/TableFlattener_test.cpp
index 4c5dbec..a940923 100644
--- a/tools/aapt2/format/binary/TableFlattener_test.cpp
+++ b/tools/aapt2/format/binary/TableFlattener_test.cpp
@@ -724,8 +724,8 @@
 
   std::string name_two = "com.app.test:integer/overlayable_two";
   OverlayableItem overlayable_item_two(group);
-  overlayable_item_two.policies |= OverlayableItem::Policy::kProduct;
-  overlayable_item_two.policies |= OverlayableItem::Policy::kSystem;
+  overlayable_item_two.policies |= OverlayableItem::Policy::kOdm;
+  overlayable_item_two.policies |= OverlayableItem::Policy::kOem;
   overlayable_item_two.policies |= OverlayableItem::Policy::kVendor;
 
   std::string name_three = "com.app.test:integer/overlayable_three";
@@ -744,6 +744,7 @@
           .AddSimple(name_three, ResourceId(0x7f020003))
           .SetOverlayable(name_three, overlayable_item_three)
           .Build();
+
   ResourceTable output_table;
   ASSERT_TRUE(Flatten(context_.get(), {}, table.get(), &output_table));
   auto search_result = output_table.FindResource(test::ParseNameOrDie(name_zero));
@@ -755,6 +756,7 @@
   EXPECT_EQ(result_overlayable.overlayable->actor, "overlay://theme");
   EXPECT_EQ(result_overlayable.policies, OverlayableItem::Policy::kSystem
                                          | OverlayableItem::Policy::kProduct);
+
   search_result = output_table.FindResource(test::ParseNameOrDie(name_one));
   ASSERT_TRUE(search_result);
   ASSERT_THAT(search_result.value().entry, NotNull());
@@ -763,6 +765,7 @@
   EXPECT_EQ(result_overlayable.overlayable->name, "OtherName");
   EXPECT_EQ(result_overlayable.overlayable->actor, "overlay://customization");
   EXPECT_EQ(result_overlayable.policies, OverlayableItem::Policy::kPublic);
+
   search_result = output_table.FindResource(test::ParseNameOrDie(name_two));
   ASSERT_TRUE(search_result);
   ASSERT_THAT(search_result.value().entry, NotNull());
@@ -770,9 +773,10 @@
   result_overlayable = search_result.value().entry->overlayable_item.value();
   EXPECT_EQ(result_overlayable.overlayable->name, "TestName");
   EXPECT_EQ(result_overlayable.overlayable->actor, "overlay://theme");
-  EXPECT_EQ(result_overlayable.policies, OverlayableItem::Policy::kSystem
-                                         | OverlayableItem::Policy::kProduct
+  EXPECT_EQ(result_overlayable.policies, OverlayableItem::Policy::kOdm
+                                         | OverlayableItem::Policy::kOem
                                          | OverlayableItem::Policy::kVendor);
+
   search_result = output_table.FindResource(test::ParseNameOrDie(name_three));
   ASSERT_TRUE(search_result);
   ASSERT_THAT(search_result.value().entry, NotNull());
diff --git a/tools/aapt2/format/proto/ProtoDeserialize.cpp b/tools/aapt2/format/proto/ProtoDeserialize.cpp
index 06f1bf7..bb21c1c 100644
--- a/tools/aapt2/format/proto/ProtoDeserialize.cpp
+++ b/tools/aapt2/format/proto/ProtoDeserialize.cpp
@@ -393,6 +393,12 @@
       case pb::OverlayableItem::SIGNATURE:
         out_overlayable->policies |= OverlayableItem::Policy::kSignature;
         break;
+      case pb::OverlayableItem::ODM:
+        out_overlayable->policies |= OverlayableItem::Policy::kOdm;
+        break;
+      case pb::OverlayableItem::OEM:
+        out_overlayable->policies |= OverlayableItem::Policy::kOem;
+        break;
       default:
         *out_error = "unknown overlayable policy";
         return false;
diff --git a/tools/aapt2/format/proto/ProtoSerialize.cpp b/tools/aapt2/format/proto/ProtoSerialize.cpp
index eb2b1a2..58e1e6e 100644
--- a/tools/aapt2/format/proto/ProtoSerialize.cpp
+++ b/tools/aapt2/format/proto/ProtoSerialize.cpp
@@ -312,6 +312,12 @@
   if (overlayable_item.policies & OverlayableItem::Policy::kSignature) {
     pb_overlayable_item->add_policy(pb::OverlayableItem::SIGNATURE);
   }
+  if (overlayable_item.policies & OverlayableItem::Policy::kOdm) {
+    pb_overlayable_item->add_policy(pb::OverlayableItem::ODM);
+  }
+  if (overlayable_item.policies & OverlayableItem::Policy::kOem) {
+    pb_overlayable_item->add_policy(pb::OverlayableItem::OEM);
+  }
 
   SerializeSourceToPb(overlayable_item.source, source_pool,
                       pb_overlayable_item->mutable_source());
diff --git a/tools/aapt2/format/proto/ProtoSerialize_test.cpp b/tools/aapt2/format/proto/ProtoSerialize_test.cpp
index d369ac4..f252f33 100644
--- a/tools/aapt2/format/proto/ProtoSerialize_test.cpp
+++ b/tools/aapt2/format/proto/ProtoSerialize_test.cpp
@@ -529,6 +529,8 @@
   OverlayableItem overlayable_item_boz(std::make_shared<Overlayable>(
       "IconPack", "overlay://theme"));
   overlayable_item_boz.policies |= OverlayableItem::Policy::kSignature;
+  overlayable_item_boz.policies |= OverlayableItem::Policy::kOdm;
+  overlayable_item_boz.policies |= OverlayableItem::Policy::kOem;
 
   OverlayableItem overlayable_item_biz(std::make_shared<Overlayable>(
       "Other", "overlay://customization"));
@@ -587,7 +589,9 @@
   overlayable_item = search_result.value().entry->overlayable_item.value();
   EXPECT_THAT(overlayable_item.overlayable->name, Eq("IconPack"));
   EXPECT_THAT(overlayable_item.overlayable->actor, Eq("overlay://theme"));
-  EXPECT_THAT(overlayable_item.policies, Eq(OverlayableItem::Policy::kSignature));
+  EXPECT_THAT(overlayable_item.policies, Eq(OverlayableItem::Policy::kSignature
+                                            | OverlayableItem::Policy::kOdm
+                                            | OverlayableItem::Policy::kOem));
 
   search_result = new_table.FindResource(test::ParseNameOrDie("com.app.a:bool/biz"));
   ASSERT_TRUE(search_result);