1 files changed, 79 insertions, 0 deletions
diff --git a/cmds/idmap2/libidmap2_policies/include/idmap2/Policies.h b/cmds/idmap2/libidmap2_policies/include/idmap2/Policies.h
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index 000000000000..5bd353af4ad3
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+++ b/cmds/idmap2/libidmap2_policies/include/idmap2/Policies.h
@@ -0,0 +1,79 @@
+/*
+ * 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.
+ */
+
+#ifndef IDMAP2_INCLUDE_IDMAP2_POLICIES_H_
+#define IDMAP2_INCLUDE_IDMAP2_POLICIES_H_
+
+#include <array>
+#include <string>
+#include <vector>
+
+#include "android-base/stringprintf.h"
+#include "androidfw/ResourceTypes.h"
+#include "androidfw/StringPiece.h"
+
+using android::base::StringPrintf;
+
+using PolicyBitmask = android::ResTable_overlayable_policy_header::PolicyBitmask;
+using PolicyFlags = android::ResTable_overlayable_policy_header::PolicyFlags;
+
+namespace android::idmap2::policy {
+
+constexpr const char* kPolicyActor = "actor";
+constexpr const char* kPolicyOdm = "odm";
+constexpr const char* kPolicyOem = "oem";
+constexpr const char* kPolicyProduct = "product";
+constexpr const char* kPolicyPublic = "public";
+constexpr const char* kPolicySignature = "signature";
+constexpr const char* kPolicySystem = "system";
+constexpr const char* kPolicyVendor = "vendor";
+
+inline static const std::array<std::pair<StringPiece, PolicyFlags>, 8> kPolicyStringToFlag = {
+    std::pair{kPolicyActor, PolicyFlags::ACTOR_SIGNATURE},
+    {kPolicyOdm, PolicyFlags::ODM_PARTITION},
+    {kPolicyOem, PolicyFlags::OEM_PARTITION},
+    {kPolicyProduct, PolicyFlags::PRODUCT_PARTITION},
+    {kPolicyPublic, PolicyFlags::PUBLIC},
+    {kPolicySignature, PolicyFlags::SIGNATURE},
+    {kPolicySystem, PolicyFlags::SYSTEM_PARTITION},
+    {kPolicyVendor, PolicyFlags::VENDOR_PARTITION},
+};
+
+inline static std::string PoliciesToDebugString(PolicyBitmask policies) {
+  std::string str;
+  uint32_t remaining = policies;
+  for (auto const& policy : kPolicyStringToFlag) {
+    if ((policies & policy.second) != policy.second) {
+      continue;
+    }
+    if (!str.empty()) {
+      str.append("|");
+    }
+    str.append(policy.first.data());
+    remaining &= ~policy.second;
+  }
+  if (remaining != 0) {
+    if (!str.empty()) {
+      str.append("|");
+    }
+    str.append(StringPrintf("0x%08x", remaining));
+  }
+  return !str.empty() ? str : "none";
+}
+
+}  // namespace android::idmap2::policy
+
+#endif  // IDMAP2_INCLUDE_IDMAP2_POLICIES_H_