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Code Issues Releases Activity

update our IP after signture verification

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orignal 2016-05-10 15:55:48 -04:00
parent bd6285c8b1
commit ca36a6fe41
1 changed files with 21 additions and 10 deletions
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31
SSUSession.cpp
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@ -265,8 +265,6 @@ namespace transport
uint16_t ourPort = bufbe16toh (payload);
s.Insert (payload, 2); // our port
payload += 2; // port
LogPrint (eLogInfo, "SSU: Our external address is ", ourIP.to_string (), ":", ourPort);
i2p::context.UpdateAddress (ourIP);
if (m_RemoteEndpoint.address ().is_v4 ())
s.Insert (m_RemoteEndpoint.address ().to_v4 ().to_bytes ().data (), 4); // remote IP v4
else
@ -283,11 +281,18 @@ namespace transport
//TODO: since we are accessing a uint8_t this is unlikely to crash due to alignment but should be improved
m_SessionKeyDecryption.SetIV (((SSUHeader *)buf)->iv);
m_SessionKeyDecryption.Decrypt (payload, signatureLen, payload); // TODO: non-const payload
// verify
if (!s.Verify (m_RemoteIdentity, payload))
// verify signature
if (s.Verify (m_RemoteIdentity, payload))
{
LogPrint (eLogInfo, "SSU: Our external address is ", ourIP.to_string (), ":", ourPort);
i2p::context.UpdateAddress (ourIP);
SendSessionConfirmed (y, ourAddress, addressSize + 2);
}
else
{
LogPrint (eLogError, "SSU: message 'created' signature verification failed");
SendSessionConfirmed (y, ourAddress, addressSize + 2);
Failed ();
}
}
void SSUSession::ProcessSessionConfirmed (const uint8_t * buf, size_t len)
@ -313,11 +318,17 @@ namespace transport
paddingSize &= 0x0F; // %16
if (paddingSize > 0) paddingSize = 16 - paddingSize;
payload += paddingSize;
// verify
if (m_SignedData && !m_SignedData->Verify (m_RemoteIdentity, payload))
// verify signature
if (m_SignedData && m_SignedData->Verify (m_RemoteIdentity, payload))
{
m_Data.Send (CreateDeliveryStatusMsg (0));
Established ();
}
else
{
LogPrint (eLogError, "SSU message 'confirmed' signature verification failed");
m_Data.Send (CreateDeliveryStatusMsg (0));
Established ();
Failed ();
}
}
void SSUSession::SendSessionRequest ()