Files
frameworks_base/cmds/idmap2/libidmap2/Policies.cpp
Winson b410020881 idmap2: add signature policy
Handles the new signature policy for overlayable resources.

Bug: 119402606

Test: idmap2_tests target

Change-Id: I7961e04a879c40c240ed9097bb510addb8b56680
2019-02-15 17:29:48 -08:00

59 lines
1.7 KiB
C++

/*
* 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 <iterator>
#include <map>
#include <sstream>
#include <string>
#include <vector>
#include "androidfw/ResourceTypes.h"
#include "idmap2/Idmap.h"
#include "idmap2/Policies.h"
#include "idmap2/Result.h"
namespace android::idmap2 {
namespace {
const std::map<android::StringPiece, PolicyFlags> kStringToFlag = {
{"public", PolicyFlags::POLICY_PUBLIC},
{"product", PolicyFlags::POLICY_PRODUCT_PARTITION},
{"system", PolicyFlags::POLICY_SYSTEM_PARTITION},
{"vendor", PolicyFlags::POLICY_VENDOR_PARTITION},
{"signature", PolicyFlags::POLICY_SIGNATURE},
};
} // namespace
Result<PolicyBitmask> PoliciesToBitmask(const std::vector<std::string>& policies,
std::ostream& err) {
PolicyBitmask bitmask = 0;
for (const std::string& policy : policies) {
const auto iter = kStringToFlag.find(policy);
if (iter != kStringToFlag.end()) {
bitmask |= iter->second;
} else {
err << "error: unknown policy \"" << policy << "\"";
return kResultError;
}
}
return Result<PolicyBitmask>(bitmask);
}
} // namespace android::idmap2