blob: 9f4bae5579aef492f213bd2f395e732bddfcafa4 [file] [log] [blame]
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_address_number.h"
#include "net/dns/dns_protocol.h"
namespace net {
class IOBufferWithSize;
// Record for storing response data.
struct DnsResponseRecord {
std::string name; // in dotted form
uint16_t type;
uint16_t klass;
uint32_t ttl;
std::string rdata;
// Class for building service-specified responses.
class DnsResponseBuilder {
// Initializes builder.
explicit DnsResponseBuilder(uint16_t id);
// Destroys the object.
// Methods for appending different types of responses to packet.
void AppendPtr(const std::string& service_type,
uint32_t ttl,
const std::string& service_name,
bool answer);
void AppendSrv(const std::string& service_name,
uint32_t ttl,
uint16_t priority,
uint16_t weight,
uint16_t http_port,
const std::string& service_domain_name,
bool answer);
void AppendA(const std::string& service_domain_name,
uint32_t ttl,
net::IPAddressNumber http_ipv4,
bool answer);
void AppendAAAA(const std::string& service_domain_name,
uint32_t ttl,
net::IPAddressNumber http_ipv6,
bool answer);
void AppendTxt(const std::string& service_name,
uint32_t ttl,
const std::vector<std::string>& metadata,
bool answer);
// Serializes packet to byte sequence.
scoped_refptr<net::IOBufferWithSize> Build();
// Appends response to packet.
void AddResponse(const std::string& name,
uint16_t type,
uint32_t ttl,
const std::string& rdata,
bool answer);
std::vector<DnsResponseRecord> responses_;
// Header of response package.
net::dns_protocol::Header header_;