1 /**
2  * Copyright (c) 2019, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _DNS_RESOLVER_SERVICE_H_
18 #define _DNS_RESOLVER_SERVICE_H_
19 
20 #include <vector>
21 
22 #include <aidl/android/net/BnDnsResolver.h>
23 #include <aidl/android/net/ResolverParamsParcel.h>
24 #include <android/binder_ibinder.h>
25 
26 #include "netd_resolv/resolv.h"
27 
28 namespace android {
29 namespace net {
30 
31 class DnsResolverService : public aidl::android::net::BnDnsResolver {
32   public:
33     static binder_status_t start();
getServiceName()34     static char const* getServiceName() { return "dnsresolver"; }
35 
36     binder_status_t dump(int fd, const char** args, uint32_t numArgs) override;
37 
38     ::ndk::ScopedAStatus isAlive(bool* alive) override;
39     ::ndk::ScopedAStatus registerEventListener(
40             const std::shared_ptr<aidl::android::net::metrics::INetdEventListener>& listener)
41             override;
42 
43     // Resolver commands.
44     ::ndk::ScopedAStatus setResolverConfiguration(
45             const aidl::android::net::ResolverParamsParcel& resolverParams) override;
46     ::ndk::ScopedAStatus getResolverInfo(
47             int32_t netId, std::vector<std::string>* servers, std::vector<std::string>* domains,
48             std::vector<std::string>* tlsServers, std::vector<int32_t>* params,
49             std::vector<int32_t>* stats,
50             std::vector<int32_t>* wait_for_pending_req_timeout_count) override;
51     ::ndk::ScopedAStatus destroyNetworkCache(int32_t netId) override;
52     ::ndk::ScopedAStatus createNetworkCache(int32_t netId) override;
53     ::ndk::ScopedAStatus flushNetworkCache(int32_t netId) override;
54 
55     // DNS64-related commands
56     ::ndk::ScopedAStatus startPrefix64Discovery(int32_t netId) override;
57     ::ndk::ScopedAStatus stopPrefix64Discovery(int32_t netId) override;
58     // (internal use only)
59     ::ndk::ScopedAStatus getPrefix64(int32_t netId, std::string* stringPrefix) override;
60     ::ndk::ScopedAStatus setPrefix64(int32_t netId, const std::string& stringPrefix) override;
61 
62     // Debug log command
63     ::ndk::ScopedAStatus setLogSeverity(int32_t logSeverity) override;
64 
65     DnsResolverService();
66 
67   private:
68     // TODO: Remove below items after libbiner_ndk supports check_permission.
69     ::ndk::ScopedAStatus checkAnyPermission(const std::vector<const char*>& permissions);
70 };
71 
72 }  // namespace net
73 }  // namespace android
74 
75 #endif  // _DNS_RESOLVER_SERVICE_H_
76