platform_system_vold/VoldNativeServiceValidation.h

/*
 * Copyright (C) 2020 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.
 */

#pragma once

#include <binder/Status.h>

#include <string>

#include <stdint.h>
#include <sys/types.h>

namespace android::vold {

binder::Status Ok();
binder::Status Exception(uint32_t code, const std::string& msg);

binder::Status CheckPermission(const char* permission);
binder::Status CheckUidOrRoot(uid_t expectedUid);
binder::Status CheckArgumentId(const std::string& id);
binder::Status CheckArgumentPath(const std::string& path);
binder::Status CheckArgumentHex(const std::string& hex);

// Incremental service is only allowed to touch its own directory, and the installed apps dir.
// This function ensures the caller isn't doing anything tricky.
enum class IncrementalPathKind { MountSource, MountTarget, Bind, Any };
binder::Status CheckIncrementalPath(IncrementalPathKind kind, const std::string& path);

}  // namespace android::vold