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send actual identity in SessionConfirmed message

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orignal 2014-10-28 18:56:11 -04:00
parent 1f69d1b890
commit 39644d3bb2
1 changed files with 11 additions and 8 deletions
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19
SSU.cpp
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@ -350,19 +350,20 @@ namespace transport
void SSUSession::SendSessionConfirmed (const uint8_t * y, const uint8_t * ourAddress)
{
uint8_t buf[480 + 18];
uint8_t buf[512 + 18];
uint8_t * payload = buf + sizeof (SSUHeader);
*payload = 1; // 1 fragment
payload++; // info
size_t identLen = i2p::data::DEFAULT_IDENTITY_SIZE; // 387 bytes
*(uint16_t *)(payload) = htobe16 (identLen);
size_t identLen = i2p::context.GetIdentity ().GetFullLen (); // 387+ bytes
*(uint16_t *)(payload) = htobe16 (identLen);
payload += 2; // cursize
memcpy (payload, (uint8_t *)&i2p::context.GetIdentity ().GetStandardIdentity (), identLen); // TODO
i2p::context.GetIdentity ().ToBuffer (payload, identLen);
payload += identLen;
uint32_t signedOnTime = i2p::util::GetSecondsSinceEpoch ();
*(uint32_t *)(payload) = htobe32 (signedOnTime); // signed on time
payload += 4;
size_t paddingSize = ((payload - buf) + 40)%16;
auto signatureLen = i2p::context.GetIdentity ().GetSignatureLen ();
size_t paddingSize = ((payload - buf) + signatureLen)%16;
if (paddingSize > 0) paddingSize = 16 - paddingSize;
// TODO: fill padding
payload += paddingSize; // padding size
@ -377,13 +378,15 @@ namespace transport
s.Insert (htobe32 (m_RelayTag)); // relay tag
s.Insert (htobe32 (signedOnTime)); // signed on time
s.Sign (i2p::context.GetPrivateKeys (), payload); // DSA signature
payload += signatureLen;
size_t msgLen = payload - buf;
uint8_t iv[16];
CryptoPP::RandomNumberGenerator& rnd = i2p::context.GetRandomNumberGenerator ();
rnd.GenerateBlock (iv, 16); // random iv
// encrypt message with session key
FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CONFIRMED, buf, 480, m_SessionKey, iv, m_MacKey);
Send (buf, 480);
FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CONFIRMED, buf, msgLen, m_SessionKey, iv, m_MacKey);
Send (buf, msgLen);
}
void SSUSession::ProcessRelayRequest (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& from)