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try both ipv4 and ipv6 NTCP2 addresses if presented

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orignal 2021-01-18 18:58:16 -05:00
parent 1a9e11d86d
commit e0cec79ad6
3 changed files with 37 additions and 5 deletions
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18
libi2pd/RouterInfo.cpp
View file

@ -935,6 +935,24 @@ namespace data
});
}
std::shared_ptr<const RouterInfo::Address> RouterInfo::GetPublishedNTCP2V4Address () const
{
return GetAddress (
[](std::shared_ptr<const RouterInfo::Address> address)->bool
{
return address->IsPublishedNTCP2 () && address->host.is_v4 ();
});
}
std::shared_ptr<const RouterInfo::Address> RouterInfo::GetPublishedNTCP2V6Address () const
{
return GetAddress (
[](std::shared_ptr<const RouterInfo::Address> address)->bool
{
return address->IsPublishedNTCP2 () && address->host.is_v6 ();
});
}
std::shared_ptr<RouterProfile> RouterInfo::GetProfile () const
{
if (!m_Profile)

2
libi2pd/RouterInfo.h
View file

@ -154,6 +154,8 @@ namespace data
int GetVersion () const { return m_Version; };
Addresses& GetAddresses () { return *m_Addresses; }; // should be called for local RI only, otherwise must return shared_ptr
std::shared_ptr<const Address> GetNTCP2Address (bool publishedOnly, bool v4only = true) const;
std::shared_ptr<const Address> GetPublishedNTCP2V4Address () const;
std::shared_ptr<const Address> GetPublishedNTCP2V6Address () const;
std::shared_ptr<const Address> GetSSUAddress (bool v4only = true) const;
std::shared_ptr<const Address> GetSSUV6Address () const;

22
libi2pd/Transports.cpp
View file

@ -389,13 +389,23 @@ namespace transport
peer.router = netdb.FindRouter (ident); // try to get new one from netdb
if (peer.router) // we have RI already
{
if (!peer.numAttempts) // NTCP2
if (peer.numAttempts < 2) // NTCP2, 0 - ipv6, 1- ipv4
{
peer.numAttempts++;
if (m_NTCP2Server) // we support NTCP2
{
// NTCP2 have priority over NTCP
auto address = peer.router->GetNTCP2Address (true, !context.SupportsV6 ()); // published only
std::shared_ptr<const RouterInfo::Address> address;
if (!peer.numAttempts) // NTCP2 ipv6
{
if (context.SupportsV6 ())
address = peer.router->GetPublishedNTCP2V6Address ();
peer.numAttempts++;
}
if (!address && peer.numAttempts == 1) // NTCP2 ipv4
{
if (context.SupportsV4 ())
address = peer.router->GetPublishedNTCP2V4Address ();
peer.numAttempts++;
}
if (address && !peer.router->IsUnreachable () && (!m_CheckReserved || !i2p::util::net::IsInReservedRange(address->host)))
{
auto s = std::make_shared<NTCP2Session> (*m_NTCP2Server, peer.router, address);
@ -415,8 +425,10 @@ namespace transport
return true;
}
}
else
peer.numAttempts = 2; // switch to SSU
}
if (peer.numAttempts == 1)// SSU
if (peer.numAttempts == 2)// SSU
{
peer.numAttempts++;
if (m_SSUServer && peer.router->IsSSU (!context.SupportsV6 ()))