private static void HandleGarlic(GarlicMessage garlicmsg)
{
try
{
// No sessions, just accept EG
var(aesblock, sessionkey) = Garlic.EGDecryptGarlic(
garlicmsg,
RouterContext.Inst.PrivateKey);
if (aesblock == null)
{
Logging.LogWarning($"Router: HandleGarlic: Failed to decrypt.");
return;
}
var garlic = new Garlic((BufRefLen)aesblock.Payload);
#if LOG_ALL_LEASE_MGMT
Logging.LogDebug($"Router: HandleGarlic: {garlic}");
#endif
foreach (var clove in garlic.Cloves)
{
try
{
// Only accept Local to not turn into a bot net.
switch (clove.Delivery.Delivery)
{
case GarlicCloveDelivery.DeliveryMethod.Local:
#if LOG_ALL_LEASE_MGMT
Logging.LogDebug(
$"Router: HandleGarlic: Delivered Local: {clove.Message}");
#endif
TunnelProvider.Inst.DistributeIncomingMessage(null, clove.Message.CreateHeader16);
break;
default:
Logging.LogDebug($"Router HandleGarlic: Dropped clove ({clove})");
break;
}
}
catch (Exception ex)
{
Logging.Log("Router: HandleGarlic switch", ex);
}
}
}
catch (Exception ex)
{
Logging.Log("Router: HandleGarlic", ex);
}
}
public void TestGarlicCreate()
{
var ls = new I2PDate(DateTime.Now + TimeSpan.FromMinutes(5));
var origmessage = new DeliveryStatusMessage(I2NPMessage.GenerateMessageId());
var bigmessage = new DataMessage(new BufLen(BufUtils.RandomBytes(14 * 1024)));
var garlic = new Garlic(
new GarlicClove(
new GarlicCloveDeliveryLocal(origmessage),
ls),
new GarlicClove(
new GarlicCloveDeliveryLocal(bigmessage),
ls)
);
var egmsg = Garlic.EGEncryptGarlic(
garlic,
Public,
new I2PSessionKey(),
null);
var origegdata = I2NPMessage.Clone(egmsg);
var origegdata2 = I2NPMessage.Clone(egmsg);
// Decrypt
var(aesblock, sessionkey1) = Garlic.EGDecryptGarlic(origegdata, Private);
var newgarlic = new Garlic((BufRefLen)aesblock.Payload);
var g1 = new BufLen(garlic.ToByteArray());
var g2 = new BufLen(newgarlic.ToByteArray());
Assert.IsTrue(g1 == g2);
// Retrieve
var(aesblock2, sessionkey2) = Garlic.RetrieveAESBlock(origegdata2, Private, null);
newgarlic = new Garlic((BufRefLen)aesblock2.Payload);
g1 = new BufLen(garlic.ToByteArray());
g2 = new BufLen(newgarlic.ToByteArray());
Assert.IsTrue(g1 == g2);
Assert.IsTrue(sessionkey1 == sessionkey2);
}
public void TestEncodeDecodeEG()
{
var m1 = new DeliveryStatusMessage(0x4321);
var m2 = new DeliveryStatusMessage(0xa3c2);
var garlic = new Garlic(
new GarlicClove(
new GarlicCloveDeliveryDestination(
m1,
Destination.IdentHash)),
new GarlicClove(
new GarlicCloveDeliveryDestination(
m2,
Destination.IdentHash))
);
// No tags
var cg = Garlic.EGEncryptGarlic(garlic, Public, new I2PSessionKey(), null);
var egdata = I2NPMessage.Clone(cg);
var(aesblock, sk) = Garlic.EGDecryptGarlic(egdata, Private);
var g2 = new Garlic((BufRefLen)aesblock.Payload);
Assert.IsTrue(BufUtils.Equal(garlic.ToByteArray(), g2.ToByteArray()));
// With tags
var tags = new List <I2PSessionTag>();
for (int i = 0; i < 8; ++i)
{
tags.Add(new I2PSessionTag());
}
cg = Garlic.EGEncryptGarlic(garlic, Public, new I2PSessionKey(), tags);
egdata = I2NPMessage.Clone(cg);
(aesblock, sk) = Garlic.EGDecryptGarlic(egdata, Private);
g2 = new Garlic((BufRefLen)aesblock.Payload);
Assert.IsTrue(BufUtils.Equal(garlic.ToByteArray(), g2.ToByteArray()));
}
