/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <string>
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#include <netd_resolv/resolv.h> // android_net_context
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#include <sysutils/FrameworkCommand.h>
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#include <sysutils/FrameworkListener.h>
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struct addrinfo;
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struct hostent;
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namespace android {
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namespace net {
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class DnsProxyListener : public FrameworkListener {
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public:
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DnsProxyListener();
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virtual ~DnsProxyListener() {}
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static constexpr const char* SOCKET_NAME = "dnsproxyd";
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private:
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class GetAddrInfoCmd : public FrameworkCommand {
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public:
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GetAddrInfoCmd();
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virtual ~GetAddrInfoCmd() {}
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int runCommand(SocketClient* c, int argc, char** argv) override;
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};
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/* ------ getaddrinfo ------*/
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class GetAddrInfoHandler {
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public:
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// Note: All of host, service, and hints may be NULL
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GetAddrInfoHandler(SocketClient* c, char* host, char* service, addrinfo* hints,
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const android_net_context& netcontext);
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~GetAddrInfoHandler();
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void run();
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private:
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void doDns64Synthesis(int32_t* rv, addrinfo** res);
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SocketClient* mClient; // ref counted
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char* mHost; // owned. TODO: convert to std::string.
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char* mService; // owned. TODO: convert to std::string.
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addrinfo* mHints; // owned
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android_net_context mNetContext;
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};
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/* ------ gethostbyname ------*/
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class GetHostByNameCmd : public FrameworkCommand {
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public:
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GetHostByNameCmd();
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virtual ~GetHostByNameCmd() {}
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int runCommand(SocketClient* c, int argc, char** argv) override;
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};
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class GetHostByNameHandler {
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public:
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GetHostByNameHandler(SocketClient* c, char* name, int af,
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const android_net_context& netcontext);
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~GetHostByNameHandler();
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void run();
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private:
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void doDns64Synthesis(int32_t* rv, hostent** hpp);
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SocketClient* mClient; // ref counted
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char* mName; // owned. TODO: convert to std::string.
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int mAf;
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android_net_context mNetContext;
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};
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/* ------ gethostbyaddr ------*/
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class GetHostByAddrCmd : public FrameworkCommand {
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public:
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GetHostByAddrCmd();
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virtual ~GetHostByAddrCmd() {}
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int runCommand(SocketClient* c, int argc, char** argv) override;
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};
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class GetHostByAddrHandler {
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public:
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GetHostByAddrHandler(SocketClient* c, void* address, int addressLen, int addressFamily,
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const android_net_context& netcontext);
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~GetHostByAddrHandler();
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void run();
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private:
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void doDns64ReverseLookup(hostent** hpp);
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SocketClient* mClient; // ref counted
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void* mAddress; // address to lookup; owned
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int mAddressLen; // length of address to look up
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int mAddressFamily; // address family
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android_net_context mNetContext;
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};
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/* ------ resnsend ------*/
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class ResNSendCommand : public FrameworkCommand {
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public:
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ResNSendCommand();
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virtual ~ResNSendCommand() {}
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int runCommand(SocketClient* c, int argc, char** argv) override;
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};
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class ResNSendHandler {
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public:
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ResNSendHandler(SocketClient* c, std::string msg, uint32_t flags,
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const android_net_context& netcontext);
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~ResNSendHandler();
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void run();
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private:
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SocketClient* mClient; // ref counted
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std::string mMsg;
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uint32_t mFlags;
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android_net_context mNetContext;
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};
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/* ------ getdnsnetid ------*/
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class GetDnsNetIdCommand : public FrameworkCommand {
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public:
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GetDnsNetIdCommand();
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virtual ~GetDnsNetIdCommand() {}
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int runCommand(SocketClient* c, int argc, char** argv) override;
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};
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};
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} // namespace net
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} // namespace android
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