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lokinet/llarp/vpn/i_packet_io.hpp

36 lines
770 B
C++

#pragma once
#include <functional>
#include <llarp/net/ip_packet.hpp>
#include <llarp/util/types.hpp>
namespace llarp::vpn
{
class I_Packet_IO
{
public:
virtual ~I_Packet_IO() = default;
/// start any platform specific operations before running
virtual void
Start(){};
/// stop operation and tear down anything that Start() set up.
virtual void
Stop(){};
/// read next ip packet, return an empty packet if there are none ready.
virtual net::IPPacket
ReadNextPacket() = 0;
/// write a packet to the interface
/// returns false if we dropped it
virtual bool
WritePacket(net::IPPacket pkt) = 0;
/// get pollable fd for reading
virtual int
PollFD() const = 0;
};
} // namespace llarp::vpn