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lokinet/include/llarp/service/protocol.hpp

93 lines
2.3 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/routing/message.hpp>
#include <llarp/service/Info.hpp>
#include <llarp/service/Intro.hpp>
#include <llarp/service/handler.hpp>
#include <vector>
namespace llarp
{
namespace service
{
constexpr std::size_t MAX_PROTOCOL_MESSAGE_SIZE = 2048;
typedef uint64_t ProtocolType;
constexpr ProtocolType eProtocolText = 0UL;
constexpr ProtocolType eProtocolTraffic = 1UL;
/// inner message
struct ProtocolMessage : public IBEncodeMessage
{
ProtocolMessage(const ConvoTag& tag);
ProtocolMessage();
~ProtocolMessage();
ProtocolType proto = eProtocolText;
llarp_time_t queued = 0;
std::vector< byte_t > payload;
Introduction introReply;
ServiceInfo sender;
IDataHandler* handler = nullptr;
ConvoTag tag;
bool
DecodeKey(llarp_buffer_t key, llarp_buffer_t* val);
bool
BEncode(llarp_buffer_t* buf) const;
void
PutBuffer(llarp_buffer_t payload);
static void
ProcessAsync(void* user);
};
/// outer message
struct ProtocolFrame : public llarp::routing::IMessage
{
llarp::Encrypted D;
llarp::PubKey H;
llarp::KeyExchangeNonce N;
llarp::Signature Z;
llarp::service::ConvoTag T;
ProtocolFrame();
ProtocolFrame(const ProtocolFrame& other);
~ProtocolFrame();
bool
EncryptAndSign(llarp_crypto* c, const ProtocolMessage* msg,
byte_t* sharedkey, byte_t* signingkey);
bool
AsyncDecryptAndVerify(llarp_logic* logic, llarp_crypto* c,
llarp_threadpool* worker, byte_t* localSecret,
IDataHandler* handler) const;
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, const ServiceInfo& from) const;
bool
HandleMessage(llarp::routing::IMessageHandler* h, llarp_router* r) const;
};
} // namespace service
} // namespace llarp
#endif