huangcm
2025-02-24 69ed55dec4b2116a19e4cca4393cbc014fce5fb2
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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.
 */
 
#ifndef _RESOLVER_CONTROLLER_H_
#define _RESOLVER_CONTROLLER_H_
 
#include <list>
#include <set>
#include <vector>
 
#include <aidl/android/net/ResolverParamsParcel.h>
#include "Dns64Configuration.h"
#include "netd_resolv/resolv.h"
#include "netdutils/DumpWriter.h"
 
struct res_params;
 
namespace android {
namespace net {
 
struct ResolverStats;
 
class ResolverController {
  public:
    ResolverController();
    ~ResolverController() = default;
 
    void destroyNetworkCache(unsigned netid);
    int createNetworkCache(unsigned netid);
 
    int getPrefix64(unsigned netId, netdutils::IPPrefix* prefix);
 
    // Binder specific functions, which convert between the ResolverParamsParcel and the
    // actual data structures, and call setDnsServer() / getDnsInfo() for the actual processing.
    int setResolverConfiguration(const aidl::android::net::ResolverParamsParcel& resolverParams,
                                 const std::set<std::vector<uint8_t>>& tlsFingerprints);
 
    int getResolverInfo(int32_t netId, std::vector<std::string>* servers,
                        std::vector<std::string>* domains, std::vector<std::string>* tlsServers,
                        std::vector<int32_t>* params, std::vector<int32_t>* stats,
                        std::vector<int32_t>* wait_for_pending_req_timeout_count);
 
    void startPrefix64Discovery(int32_t netId);
    void stopPrefix64Discovery(int32_t netId);
 
    void dump(netdutils::DumpWriter& dw, unsigned netId);
 
  private:
    Dns64Configuration mDns64Configuration;
};
}  // namespace net
}  // namespace android
 
#endif /* _RESOLVER_CONTROLLER_H_ */