lokinet/llarp/dns/message.hpp
2019-02-24 23:46:44 +00:00

96 lines
2.1 KiB
C++

#ifndef LLARP_DNS_MESSAGE_HPP
#define LLARP_DNS_MESSAGE_HPP
#include <dns/serialize.hpp>
#include <dns/rr.hpp>
#include <dns/question.hpp>
namespace llarp
{
namespace dns
{
using MsgID_t = uint16_t;
using Fields_t = uint16_t;
using Count_t = uint16_t;
struct MessageHeader : public Serialize
{
const static size_t Size = 12;
MessageHeader() = default;
MsgID_t id;
Fields_t fields;
Count_t qd_count;
Count_t an_count;
Count_t ns_count;
Count_t ar_count;
bool
Encode(llarp_buffer_t* buf) const override;
bool
Decode(llarp_buffer_t* buf) override;
bool
operator==(const MessageHeader& other) const
{
return id == other.id && fields == other.fields
&& qd_count == other.qd_count && an_count == other.an_count
&& ns_count == other.ns_count && ar_count == other.ar_count;
}
};
struct Message : public Serialize
{
Message(const MessageHeader& hdr);
Message(Message&& other);
Message(const Message& other);
void
UpdateHeader();
void
AddNXReply(RR_TTL_t ttl = 1);
void
AddMXReply(std::string name, uint16_t priority, RR_TTL_t ttl = 1);
void
AddCNAMEReply(std::string name, RR_TTL_t ttl = 1);
void
AddINReply(llarp::huint32_t addr, RR_TTL_t ttl = 1);
void
AddAReply(std::string name, RR_TTL_t ttl = 1);
bool
Encode(llarp_buffer_t* buf) const override;
bool
Decode(llarp_buffer_t* buf) override;
std::ostream&
print(std::ostream& stream, int level, int spaces) const;
MsgID_t hdr_id;
Fields_t hdr_fields;
std::vector< Question > questions;
std::vector< ResourceRecord > answers;
std::vector< ResourceRecord > authorities;
std::vector< ResourceRecord > additional;
};
inline std::ostream&
operator<<(std::ostream& out, const Message& msg)
{
msg.print(out, -1, -1);
return out;
}
} // namespace dns
} // namespace llarp
#endif