lokinet/llarp/vpn/win32.hpp

#pragma once

#include "platform.hpp"

#include <llarp.hpp>
#include <llarp/router/router.hpp>
#include <llarp/win32/exec.hpp>

#include <winsock2.h>

#include <windows.h>

#include <iphlpapi.h>

namespace llarp::win32
{
  using namespace llarp::vpn;
  class VPNPlatform : public Platform, public AbstractRouteManager
  {
    llarp::Context* const _ctx;
    const int m_Metric{2};

    const auto&
    Net() const
    {
      return _ctx->router->net();
    }

    void
    make_route(std::string ip, std::string gw, std::string cmd);

    void
    default_route_via_interface(NetworkInterface& vpn, std::string cmd);

    void
    route_via_interface(NetworkInterface& vpn, std::string addr, std::string mask, std::string cmd);

   public:
    VPNPlatform(const VPNPlatform&) = delete;
    VPNPlatform(VPNPlatform&&) = delete;

    VPNPlatform(llarp::Context* ctx) : Platform{}, _ctx{ctx}
    {}

    ~VPNPlatform() override = default;

    void
    add_route(oxen::quic::Address ip, oxen::quic::Address gateway) override;

    void
    delete_route(oxen::quic::Address ip, oxen::quic::Address gateway) override;

    void
    add_route_via_interface(NetworkInterface& vpn, IPRange range) override;

    void
    delete_route_via_interface(NetworkInterface& vpn, IPRange range) override;

    std::vector<oxen::quic::Address>
    get_non_interface_gateways(NetworkInterface& vpn) override;

    void
    add_default_route_via_interface(NetworkInterface& vpn) override;

    void
    delete_default_route_via_interface(NetworkInterface& vpn) override;

    std::shared_ptr<NetworkInterface>
    ObtainInterface(InterfaceInfo info, Router* router) override;

    std::shared_ptr<I_Packet_IO>
    create_packet_io(
        unsigned int ifindex, const std::optional<SockAddr>& dns_upstream_src) override;

    AbstractRouteManager&
    RouteManager() override
    {
      return *this;
    }
  };

}  // namespace llarp::win32