void DatagramDestination::SendDatagramTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash& ident, uint16_t fromPort, uint16_t toPort)
{
uint8_t buf[MAX_DATAGRAM_SIZE];
auto identityLen = m_Owner.GetIdentity ().ToBuffer (buf, MAX_DATAGRAM_SIZE);
uint8_t * signature = buf + identityLen;
auto signatureLen = m_Owner.GetIdentity ().GetSignatureLen ();
uint8_t * buf1 = signature + signatureLen;
size_t headerLen = identityLen + signatureLen;
memcpy (buf1, payload, len);
if (m_Owner.GetIdentity ().GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1)
{
uint8_t hash[32];
CryptoPP::SHA256().CalculateDigest (hash, buf1, len);
m_Owner.Sign (hash, 32, signature);
}
else
m_Owner.Sign (buf1, len, signature);
auto msg = CreateDataMessage (buf, len + headerLen, fromPort, toPort);
auto remote = m_Owner.FindLeaseSet (ident);
if (remote)
m_Owner.GetService ().post (std::bind (&DatagramDestination::SendMsg, this, msg, remote));
else
m_Owner.RequestDestination (ident, std::bind (&DatagramDestination::HandleLeaseSetRequestComplete, this, std::placeholders::_1, msg));
}
void DatagramDestination::SendDatagramTo (const uint8_t * payload, size_t len, const i2p::data::LeaseSet& remote)
{
uint8_t buf[MAX_DATAGRAM_SIZE];
auto identityLen = m_Owner.GetIdentity ().ToBuffer (buf, MAX_DATAGRAM_SIZE);
uint8_t * signature = buf + identityLen;
auto signatureLen = m_Owner.GetIdentity ().GetSignatureLen ();
uint8_t * buf1 = signature + signatureLen;
size_t headerLen = identityLen + signatureLen;
memcpy (buf1, payload, len);
if (m_Owner.GetIdentity ().GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1)
{
uint8_t hash[32];
CryptoPP::SHA256().CalculateDigest (hash, buf1, len);
m_Owner.Sign (hash, 32, signature);
}
else
m_Owner.Sign (buf1, len, signature);
auto service = m_Owner.GetService ();
if (service)
service->post (std::bind (&DatagramDestination::SendMsg, this,
CreateDataMessage (buf, len + headerLen), remote));
else
LogPrint (eLogWarning, "Failed to send datagram. Destination is not running");
}
