ladybird/Userland/Services/LookupServer/MulticastDNS.h

47 lines
944 B
C++

/*
* Copyright (c) 2021, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "DNSAnswer.h"
#include "DNSName.h"
#include "DNSPacket.h"
#include <AK/IPv4Address.h>
#include <LibCore/UDPServer.h>
#include <netinet/in.h>
namespace LookupServer {
class MulticastDNS : public Core::UDPServer {
C_OBJECT(MulticastDNS)
public:
Vector<DNSAnswer> lookup(const DNSName&, DNSRecordType record_type);
private:
explicit MulticastDNS(Object* parent = nullptr);
void announce();
ssize_t emit_packet(const DNSPacket&, const sockaddr_in* destination = nullptr);
void handle_packet();
void handle_query(const DNSPacket&);
Vector<IPv4Address> local_addresses() const;
DNSName m_hostname;
static constexpr sockaddr_in mdns_addr {
AF_INET,
// htons(5353)
0xe914,
// 224.0.0.251
{ 0xfb0000e0 },
0
};
};
}