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/*
* 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 "idmap2/Policies.h"
#include <iterator>
#include <string>
#include <unordered_map>
#include <vector>
#include "androidfw/ResourceTypes.h"
#include "idmap2/Idmap.h"
#include "idmap2/Result.h"
namespace android::idmap2 {
Result<PolicyBitmask> PoliciesToBitmask(const std::vector<std::string>& policies) {
static const std::unordered_map<android::StringPiece, PolicyFlags> kStringToFlag = {
{kPolicyOdm, PolicyFlags::POLICY_ODM_PARTITION},
{kPolicyOem, PolicyFlags::POLICY_OEM_PARTITION},
{kPolicyPublic, PolicyFlags::POLICY_PUBLIC},
{kPolicyProduct, PolicyFlags::POLICY_PRODUCT_PARTITION},
{kPolicySignature, PolicyFlags::POLICY_SIGNATURE},
{kPolicySystem, PolicyFlags::POLICY_SYSTEM_PARTITION},
{kPolicyVendor, PolicyFlags::POLICY_VENDOR_PARTITION},
};
PolicyBitmask bitmask = 0;
for (const std::string& policy : policies) {
const auto iter = kStringToFlag.find(policy);
if (iter != kStringToFlag.end()) {
bitmask |= iter->second;
} else {
return Error("unknown policy \"%s\"", policy.c_str());
}
}
return Result<PolicyBitmask>(bitmask);
}
std::vector<std::string> BitmaskToPolicies(const PolicyBitmask& bitmask) {
std::vector<std::string> policies;
if ((bitmask & PolicyFlags::POLICY_ODM_PARTITION) != 0) {
policies.emplace_back(kPolicyOdm);
}
if ((bitmask & PolicyFlags::POLICY_OEM_PARTITION) != 0) {
policies.emplace_back(kPolicyOem);
}
if ((bitmask & PolicyFlags::POLICY_PUBLIC) != 0) {
policies.emplace_back(kPolicyPublic);
}
if ((bitmask & PolicyFlags::POLICY_PRODUCT_PARTITION) != 0) {
policies.emplace_back(kPolicyProduct);
}
if ((bitmask & PolicyFlags::POLICY_SIGNATURE) != 0) {
policies.emplace_back(kPolicySignature);
}
if ((bitmask & PolicyFlags::POLICY_SYSTEM_PARTITION) != 0) {
policies.emplace_back(kPolicySystem);
}
if ((bitmask & PolicyFlags::POLICY_VENDOR_PARTITION) != 0) {
policies.emplace_back(kPolicyVendor);
}
return policies;
}
} // namespace android::idmap2
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