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update token and conn id after HolePunch

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orignal 2022-06-27 23:03:27 -04:00
parent 72b61a29c2
commit d3bc9eb110
3 changed files with 35 additions and 10 deletions
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20
libi2pd/SSU2Session.cpp
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@ -955,8 +955,16 @@ namespace transport
// connect to Charlie
if (m_State == eSSU2SessionStateIntroduced)
{
// create new connID
uint64_t oldConnID = GetConnID ();
RAND_bytes ((uint8_t *)&m_DestConnID, 8);
RAND_bytes ((uint8_t *)&m_SourceConnID, 8);
m_Server.UpdateSessionConnID (oldConnID);
// new token
m_Server.UpdateOutgoingToken (m_RemoteEndpoint, headerX[1], i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_TIMEOUT);
// connect
m_State = eSSU2SessionStateUnknown;
Connect ();
SendSessionRequest (headerX[1]);
}
return true;
@ -1463,13 +1471,9 @@ namespace transport
s.Insert (buf + 2, 10 + csz); // nonce, timestamp, ver, csz and Charlie's endpoint
if (s.Verify (it->second.first->GetRemoteIdentity (), buf + 12 + csz))
{
// update Charlie's endpoint and connect
if (it->second.first->m_State == eSSU2SessionStateIntroduced &&
ExtractEndpoint (buf + 12, csz, it->second.first->m_RemoteEndpoint))
{
it->second.first->m_State = eSSU2SessionStateUnknown;
it->second.first->Connect ();
}
if (it->second.first->m_State == eSSU2SessionStateIntroduced) // HolePunch not received yet
// update Charlie's endpoint
ExtractEndpoint (buf + 12, csz, it->second.first->m_RemoteEndpoint);
}
else
{