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don't include expired lease to LeaseSet for I2Cp

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orignal 2024-08-21 19:21:02 -04:00
parent 0191e58b05
commit ff5c76f8f2
2 changed files with 26 additions and 8 deletions
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26
libi2pd/LeaseSet.cpp
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@ -728,25 +728,41 @@ namespace data
memset (m_Buffer + offset, 0, signingKeyLen); memset (m_Buffer + offset, 0, signingKeyLen);
offset += signingKeyLen; offset += signingKeyLen;
// num leases // num leases
auto numLeasesPos = offset;
m_Buffer[offset] = num; m_Buffer[offset] = num;
offset++; offset++;
// leases // leases
m_Leases = m_Buffer + offset; m_Leases = m_Buffer + offset;
auto currentTime = i2p::util::GetMillisecondsSinceEpoch (); auto currentTime = i2p::util::GetMillisecondsSinceEpoch ();
int skipped = 0;
for (int i = 0; i < num; i++) for (int i = 0; i < num; i++)
{ {
uint64_t ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // 1 minute before expiration
ts *= 1000; // in milliseconds
if (ts <= currentTime)
{
// already expired, skip
skipped++;
continue;
}
if (ts > m_ExpirationTime) m_ExpirationTime = ts;
// make sure leaseset is newer than previous, but adding some time to expiration date
ts += (currentTime - tunnels[i]->GetCreationTime ()*1000LL)*2/i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT; // up to 2 secs
memcpy (m_Buffer + offset, tunnels[i]->GetNextIdentHash (), 32); memcpy (m_Buffer + offset, tunnels[i]->GetNextIdentHash (), 32);
offset += 32; // gateway id offset += 32; // gateway id
htobe32buf (m_Buffer + offset, tunnels[i]->GetNextTunnelID ()); htobe32buf (m_Buffer + offset, tunnels[i]->GetNextTunnelID ());
offset += 4; // tunnel id offset += 4; // tunnel id
uint64_t ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // 1 minute before expiration
ts *= 1000; // in milliseconds
if (ts > m_ExpirationTime) m_ExpirationTime = ts;
// make sure leaseset is newer than previous, but adding some time to expiration date
ts += (currentTime - tunnels[i]->GetCreationTime ()*1000LL)*2/i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT; // up to 2 secs
htobe64buf (m_Buffer + offset, ts); htobe64buf (m_Buffer + offset, ts);
offset += 8; // end date offset += 8; // end date
} }
if (skipped > 0)
{
// adjust num leases
if (skipped > num) skipped = num;
num -= skipped;
m_BufferLen -= skipped*LEASE_SIZE;
m_Buffer[numLeasesPos] = num;
}
// we don't sign it yet. must be signed later on // we don't sign it yet. must be signed later on
} }

8
libi2pd_client/I2CP.cpp
View File

@ -102,15 +102,15 @@ namespace client
i2p::data::LocalLeaseSet ls (m_Identity, priv, tunnels); // we don't care about encryption key, we need leases only i2p::data::LocalLeaseSet ls (m_Identity, priv, tunnels); // we don't care about encryption key, we need leases only
m_LeaseSetExpirationTime = ls.GetExpirationTime (); m_LeaseSetExpirationTime = ls.GetExpirationTime ();
uint8_t * leases = ls.GetLeases (); uint8_t * leases = ls.GetLeases ();
leases[-1] = tunnels.size (); int numLeases = leases[-1];
if (m_Owner) if (m_Owner && numLeases)
{ {
uint16_t sessionID = m_Owner->GetSessionID (); uint16_t sessionID = m_Owner->GetSessionID ();
if (sessionID != 0xFFFF) if (sessionID != 0xFFFF)
{ {
m_IsCreatingLeaseSet = true; m_IsCreatingLeaseSet = true;
htobe16buf (leases - 3, sessionID); htobe16buf (leases - 3, sessionID);
size_t l = 2/*sessionID*/ + 1/*num leases*/ + i2p::data::LEASE_SIZE*tunnels.size (); size_t l = 2/*sessionID*/ + 1/*num leases*/ + i2p::data::LEASE_SIZE*numLeases;
m_Owner->SendI2CPMessage (I2CP_REQUEST_VARIABLE_LEASESET_MESSAGE, leases - 3, l); m_Owner->SendI2CPMessage (I2CP_REQUEST_VARIABLE_LEASESET_MESSAGE, leases - 3, l);
m_LeaseSetCreationTimer.expires_from_now (boost::posix_time::seconds (I2CP_LEASESET_CREATION_TIMEOUT)); m_LeaseSetCreationTimer.expires_from_now (boost::posix_time::seconds (I2CP_LEASESET_CREATION_TIMEOUT));
auto s = GetSharedFromThis (); auto s = GetSharedFromThis ();
@ -124,6 +124,8 @@ namespace client
}); });
} }
} }
else
LogPrint (eLogError, "I2CP: Can't request LeaseSet");
} }
void I2CPDestination::LeaseSetCreated (const uint8_t * buf, size_t len) void I2CPDestination::LeaseSetCreated (const uint8_t * buf, size_t len)