lokinet/llarp/iwp/linklayer.cpp
Stephen Shelton 273270916e
The Great Wall of Blame
This commit reflects changes to clang-format rules. Unfortunately,
these rule changes create a massive change to the codebase, which
causes an apparent rewrite of git history.

Git blame's --ignore-rev flag can be used to ignore this commit when
attempting to `git blame` some code.
2020-04-07 12:38:56 -06:00

104 lines
2.5 KiB
C++

#include <iwp/linklayer.hpp>
#include <iwp/session.hpp>
#include <config/key_manager.hpp>
#include <memory>
#include <unordered_set>
namespace llarp
{
namespace iwp
{
LinkLayer::LinkLayer(
std::shared_ptr<KeyManager> keyManager,
GetRCFunc getrc,
LinkMessageHandler h,
SignBufferFunc sign,
SessionEstablishedHandler est,
SessionRenegotiateHandler reneg,
TimeoutHandler timeout,
SessionClosedHandler closed,
PumpDoneHandler pumpDone,
bool allowInbound)
: ILinkLayer(keyManager, getrc, h, sign, est, reneg, timeout, closed, pumpDone)
, permitInbound{allowInbound}
{
}
LinkLayer::~LinkLayer() = default;
const char*
LinkLayer::Name() const
{
return "iwp";
}
uint16_t
LinkLayer::Rank() const
{
return 2;
}
void
LinkLayer::QueueWork(std::function<void(void)> func)
{
m_Worker->addJob(func);
}
void
LinkLayer::RecvFrom(const Addr& from, ILinkSession::Packet_t pkt)
{
std::shared_ptr<ILinkSession> session;
auto itr = m_AuthedAddrs.find(from);
bool isNewSession = false;
if (itr == m_AuthedAddrs.end())
{
Lock_t lock(m_PendingMutex);
if (m_Pending.count(from) == 0)
{
if (not permitInbound)
return;
isNewSession = true;
m_Pending.insert({from, std::make_shared<Session>(this, from)});
}
session = m_Pending.find(from)->second;
}
else
{
Lock_t lock(m_AuthedLinksMutex);
auto range = m_AuthedLinks.equal_range(itr->second);
session = range.first->second;
}
if (session)
{
bool success = session->Recv_LL(std::move(pkt));
if (!success and isNewSession)
{
LogWarn("Brand new session failed; removing from pending sessions list");
m_Pending.erase(m_Pending.find(from));
}
}
}
bool
LinkLayer::MapAddr(const RouterID& r, ILinkSession* s)
{
if (!ILinkLayer::MapAddr(r, s))
return false;
m_AuthedAddrs.emplace(s->GetRemoteEndpoint(), r);
return true;
}
void
LinkLayer::UnmapAddr(const Addr& a)
{
m_AuthedAddrs.erase(a);
}
std::shared_ptr<ILinkSession>
LinkLayer::NewOutboundSession(const RouterContact& rc, const AddressInfo& ai)
{
return std::make_shared<Session>(this, rc, ai);
}
} // namespace iwp
} // namespace llarp