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Signed-off-by: R4SAS <r4sas@i2pmail.org>
This commit is contained in:
R4SAS 2021-11-27 23:30:35 +03:00
parent 94661f697b
commit edc0162163
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GPG key ID: 66F6C87B98EBCFE2
66 changed files with 998 additions and 999 deletions
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46
libi2pd/TunnelEndpoint.cpp
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@ -57,7 +57,7 @@ namespace tunnel
// first fragment
if (m_CurrentMsgID)
AddIncompleteCurrentMessage (); // we have got a new message while previous is not complete
m_CurrentMessage.deliveryType = (TunnelDeliveryType)((flag >> 5) & 0x03);
switch (m_CurrentMessage.deliveryType)
{
@ -108,8 +108,8 @@ namespace tunnel
{
HandleFollowOnFragment (msgID, isLastFragment, fragmentNum, fragment, size); // another
m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr;
}
}
}
}
else
{
// new message
@ -131,27 +131,27 @@ namespace tunnel
}
else
m_CurrentMessage.data = msg;
if (isLastFragment)
{
{
// single message
HandleNextMessage (m_CurrentMessage);
m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr;
}
}
else if (msgID)
{
// first fragment of a new message
m_CurrentMessage.nextFragmentNum = 1;
m_CurrentMessage.receiveTime = i2p::util::GetMillisecondsSinceEpoch ();
HandleOutOfSequenceFragments (msgID, m_CurrentMessage);
}
}
else
{
{
LogPrint (eLogError, "TunnelMessage: Message is fragmented, but msgID is not presented");
m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr;
}
}
}
}
fragment += size;
}
}
@ -159,7 +159,7 @@ namespace tunnel
LogPrint (eLogError, "TunnelMessage: Zero not found");
}
void TunnelEndpoint::HandleFollowOnFragment (uint32_t msgID, bool isLastFragment,
void TunnelEndpoint::HandleFollowOnFragment (uint32_t msgID, bool isLastFragment,
uint8_t fragmentNum, const uint8_t * fragment, size_t size)
{
auto it = m_IncompleteMessages.find (msgID);
@ -213,15 +213,15 @@ namespace tunnel
msg.data = newMsg;
}
if (msg.data->Concat (fragment, size) < size) // concatenate fragment
{
{
LogPrint (eLogError, "TunnelMessage: I2NP buffer overflow ", msg.data->maxLen);
return false;
}
}
}
else
return false;
return true;
}
}
void TunnelEndpoint::HandleCurrenMessageFollowOnFragment (const uint8_t * fragment, size_t size, bool isLastFragment)
{
@ -244,7 +244,7 @@ namespace tunnel
LogPrint (eLogError, "TunnelMessage: Fragment ", m_CurrentMessage.nextFragmentNum, " of message ", m_CurrentMsgID, " exceeds max I2NP message size, message dropped");
m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr;
}
}
}
void TunnelEndpoint::AddIncompleteCurrentMessage ()
{
@ -255,13 +255,13 @@ namespace tunnel
LogPrint (eLogError, "TunnelMessage: Incomplete message ", m_CurrentMsgID, " already exists");
m_CurrentMessage.data = nullptr;
m_CurrentMsgID = 0;
}
}
}
}
void TunnelEndpoint::AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum,
bool isLastFragment, const uint8_t * fragment, size_t size)
{
std::unique_ptr<Fragment> f(new Fragment (isLastFragment, i2p::util::GetMillisecondsSinceEpoch (), size));
std::unique_ptr<Fragment> f(new Fragment (isLastFragment, i2p::util::GetMillisecondsSinceEpoch (), size));
memcpy (f->data.data (), fragment, size);
if (!m_OutOfSequenceFragments.emplace ((uint64_t)msgID << 32 | fragmentNum, std::move (f)).second)
LogPrint (eLogInfo, "TunnelMessage: Duplicate out-of-sequence fragment ", fragmentNum, " of message ", msgID);
@ -276,10 +276,10 @@ namespace tunnel
HandleNextMessage (msg);
if (&msg == &m_CurrentMessage)
{
m_CurrentMsgID = 0;
m_CurrentMsgID = 0;
m_CurrentMessage.data = nullptr;
}
else
}
else
m_IncompleteMessages.erase (msgID);
LogPrint (eLogDebug, "TunnelMessage: All fragments of message ", msgID, " found");
break;