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Code Issues Releases Activity

padding for path response

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orignal 2023-07-21 18:25:28 -04:00
parent 6e9a3422e9
commit c7efd465fa
1 changed files with 6 additions and 3 deletions
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9
libi2pd/SSU2Session.cpp
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@ -2857,7 +2857,7 @@ namespace transport
void SSU2Session::SendPathResponse (const uint8_t * data, size_t len) void SSU2Session::SendPathResponse (const uint8_t * data, size_t len)
{ {
if (len < 8 || len > m_MaxPayloadSize - 3) if (len > m_MaxPayloadSize - 3)
{ {
LogPrint (eLogWarning, "SSU2: Incorrect data size for path response ", len); LogPrint (eLogWarning, "SSU2: Incorrect data size for path response ", len);
return; return;
@ -2866,7 +2866,10 @@ namespace transport
payload[0] = eSSU2BlkPathResponse; payload[0] = eSSU2BlkPathResponse;
htobe16buf (payload + 1, len); htobe16buf (payload + 1, len);
memcpy (payload + 3, data, len); memcpy (payload + 3, data, len);
SendData (payload, len + 3); size_t payloadSize = len + 3;
if (payloadSize < m_MaxPayloadSize)
payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize, payloadSize < 8 ? 8 : 0);
SendData (payload, payloadSize);
} }
void SSU2Session::SendPathChallenge () void SSU2Session::SendPathChallenge ()
@ -2884,7 +2887,7 @@ namespace transport
} }
len += 3; len += 3;
if (len < m_MaxPayloadSize) if (len < m_MaxPayloadSize)
len += CreatePaddingBlock (payload + len, m_MaxPayloadSize - len); len += CreatePaddingBlock (payload + len, m_MaxPayloadSize - len, len < 8 ? 8 : 0);
SendData (payload, len); SendData (payload, len);
} }