75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
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* Copyright (C) 2017 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 <chrono>
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#include <set>
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#include <string>
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#include <vector>
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#include <netinet/in.h>
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#include <params.h>
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namespace android {
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namespace net {
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// DnsTlsServer represents a recursive resolver that supports, or may support, a
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// secure protocol.
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struct DnsTlsServer {
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// Default constructor.
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DnsTlsServer() {}
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// Allow sockaddr_storage to be promoted to DnsTlsServer automatically.
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DnsTlsServer(const sockaddr_storage& ss) : ss(ss) {}
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// The server location, including IP and port.
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sockaddr_storage ss = {};
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// The server's hostname. If this string is nonempty, the server must present a
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// certificate that indicates this name and has a valid chain to a trusted root CA.
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std::string name;
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// The certificate of the CA that signed the server's certificate.
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// It is used to store temporary test CA certificate for internal tests.
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std::string certificate;
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// Placeholder. More protocols might be defined in the future.
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int protocol = IPPROTO_TCP;
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// The time to wait for the attempt on connecting to the server.
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// Set the default value 127 seconds to be consistent with TCP connect timeout.
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// (presume net.ipv4.tcp_syn_retries = 6)
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static constexpr std::chrono::milliseconds kDotConnectTimeoutMs =
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std::chrono::milliseconds(127 * 1000);
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std::chrono::milliseconds connectTimeout = kDotConnectTimeoutMs;
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// Exact comparison of DnsTlsServer objects
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bool operator<(const DnsTlsServer& other) const;
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bool operator==(const DnsTlsServer& other) const;
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bool wasExplicitlyConfigured() const;
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};
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// This comparison only checks the IP address. It ignores ports, names, and fingerprints.
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struct AddressComparator {
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bool operator()(const DnsTlsServer& x, const DnsTlsServer& y) const;
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};
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} // namespace net
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} // namespace android
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