lokinet/llarp/path/path_context.hpp
dr7ana 3451a30d0e ALPN verification
- laying the groundwork for functional client->service node connections. this requires ALPNs verification as a secondary method of identification to the remote key
- refactored btreq stream creation to use improved stream creation logic in libquic
2023-12-18 14:15:53 -08:00

142 lines
2.8 KiB
C++

#pragma once
#include "abstracthophandler.hpp"
#include "path_types.hpp"
#include "pathset.hpp"
#include "transit_hop.hpp"
#include <llarp/ev/ev.hpp>
#include <llarp/net/ip_address.hpp>
#include <llarp/util/compare_ptr.hpp>
#include <llarp/util/decaying_hashset.hpp>
#include <llarp/util/types.hpp>
#include <memory>
#include <unordered_map>
namespace llarp
{
struct Router;
struct RouterID;
namespace path
{
struct TransitHop;
struct TransitHopInfo;
struct TransitHopID
{
RouterID rid;
PathID_t path_id;
bool
operator==(const TransitHopID& other) const
{
return rid == other.rid && path_id == other.path_id;
}
};
} // namespace path
} // namespace llarp
namespace std
{
template <>
struct hash<llarp::path::TransitHopID>
{
size_t
operator()(const llarp::path::TransitHopID& obj) const noexcept
{
return std::hash<llarp::PathID_t>{}(obj.path_id);
}
};
} // namespace std
namespace llarp::path
{
struct PathContext
{
explicit PathContext(Router* router);
/// called from router tick function
void
ExpirePaths(llarp_time_t now);
void
allow_transit();
void
reject_transit();
bool
check_path_limit_hit_by_ip(const IpAddress& ip);
bool
is_transit_allowed() const;
bool
has_transit_hop(const TransitHopInfo& info);
void
put_transit_hop(std::shared_ptr<TransitHop> hop);
Path_ptr
get_path(const PathID_t& path_id);
bool
TransitHopPreviousIsRouter(const PathID_t& path, const RouterID& r);
std::shared_ptr<TransitHop>
GetPathForTransfer(const PathID_t& topath);
std::shared_ptr<TransitHop>
GetTransitHop(const RouterID&, const PathID_t&);
PathSet_ptr
GetLocalPathSet(const PathID_t& id);
/// get a set of all paths that we own who's endpoint is r
std::vector<std::shared_ptr<Path>>
FindOwnedPathsWithEndpoint(const RouterID& r);
bool
HopIsUs(const RouterID& k) const;
void
AddOwnPath(PathSet_ptr set, Path_ptr p);
void
RemovePathSet(PathSet_ptr set);
const EventLoop_ptr&
loop();
const SecretKey&
EncryptionSecretKey();
const byte_t*
OurRouterID() const;
/// current number of transit paths we have
uint64_t
CurrentTransitPaths();
/// current number of paths we created in status
uint64_t
CurrentOwnedPaths(path::PathStatus status = path::PathStatus::ESTABLISHED);
Router*
router() const
{
return _router;
}
private:
Router* _router;
std::unordered_map<TransitHopID, std::shared_ptr<TransitHop>> transit_hops;
std::unordered_map<PathID_t, Path_ptr> own_paths;
bool m_AllowTransit;
util::DecayingHashSet<IpAddress> path_limits;
};
} // namespace llarp::path