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lokinet/include/llarp/service/protocol.hpp

74 lines
1.7 KiB
C++

#ifndef LLARP_SERVICE_PROTOCOL_HPP
#define LLARP_SERVICE_PROTOCOL_HPP
#include <llarp/time.h>
#include <llarp/bencode.hpp>
#include <llarp/crypto.hpp>
#include <llarp/encrypted.hpp>
#include <llarp/service/Info.hpp>
#include <llarp/service/Intro.hpp>
#include <vector>
namespace llarp
{
namespace service
{
constexpr std::size_t MAX_PROTOCOL_MESSAGE_SIZE = 2048;
enum ProtocolType
{
eProtocolText = 0,
eProtocolTraffic = 1
};
/// inner message
struct ProtocolMessage : public llarp::IBEncodeMessage
{
ProtocolMessage();
~ProtocolMessage();
ProtocolType proto;
llarp_time_t queued = 0;
std::vector< byte_t > payload;
Introduction introReply;
ServiceInfo sender;
bool
DecodeKey(llarp_buffer_t key, llarp_buffer_t* val);
bool
BEncode(llarp_buffer_t* buf) const;
void
PutBuffer(llarp_buffer_t payload);
};
/// outer message
struct ProtocolFrame : public llarp::IBEncodeMessage
{
llarp::Encrypted D;
uint64_t S = 0;
llarp::PubKey H;
llarp::KeyExchangeNonce N;
llarp::Signature Z;
~ProtocolFrame();
bool
EncryptAndSign(llarp_crypto* c, const ProtocolMessage* msg,
byte_t* sharedkey, byte_t* signingkey);
bool
DecryptPayloadInto(llarp_crypto* c, byte_t* sharedkey,
ProtocolMessage* into) const;
bool
DecodeKey(llarp_buffer_t key, llarp_buffer_t* val);
bool
BEncode(llarp_buffer_t* buf) const;
bool
Verify(llarp_crypto* c, byte_t* signingkey);
};
} // namespace service
} // namespace llarp
#endif