void UpdateCachedFields(BufRef reader)
{
CachedKey = new I2PIdentHash(reader);
CachedContent = reader.Read8() == 0 ? MessageContent.RouterInfo : MessageContent.LeaseSet;
CachedReplyToken = reader.Read32();
if (CachedReplyToken != 0)
{
CachedReplyTunnelId = reader.Read32();
CachedReplyGateway = new I2PIdentHash(reader);
}
switch (CachedContent)
{
case MessageContent.RouterInfo:
var length = reader.ReadFlip16();
#if USE_BC_GZIP
CachedRouterInfo = new I2PRouterInfo(
new BufRefLen(LZUtils.BCGZipDecompressNew(new BufLen(reader, 0, length))), true);
#else
using (var ms = new MemoryStream())
{
ms.Write(reader.BaseArray, reader.BaseArrayOffset, length);
ms.Position = 0;
using (var gzs = new GZipStream(ms, CompressionMode.Decompress))
{
var gzdata = StreamUtils.Read(gzs);
CachedRouterInfo = new I2PRouterInfo(new BufRefLen(gzdata), true);
}
}
#endif
reader.Seek(length);
break;
case MessageContent.LeaseSet:
CachedLeaseSet = new I2PLeaseSet(reader);
break;
/*
* case MessageContent.LeaseSet2:
* break;
*
* case MessageContent.EncryptedLeaseSet:
* break;
*
* case MessageContent.MetaLeaseSet:
* break;
*/
default:
throw new InvalidDataException($"DatabaseStoreMessage: {CachedContent} not supported");
}
}
public GarlicClove(BufRef reader)
{
Delivery = GarlicCloveDelivery.CreateGarlicCloveDelivery(reader);
Message = I2NPMessage.ReadHeader16(reader).Message;
CloveId = reader.Read32();
Expiration = new I2PDate(reader);
reader.Seek(3); // Cert
}
void UpdateCachedFields(BufRef reader)
{
CachedKey = new I2PIdentHash(reader);
CachedContent = reader.Read8() == 0 ? MessageContent.RouterInfo : MessageContent.LeaseSet;
CachedReplyToken = reader.Read32();
if (CachedReplyToken != 0)
{
CachedReplyTunnelId = reader.Read32();
CachedReplyGateway = new I2PIdentHash(reader);
}
if (CachedContent == MessageContent.RouterInfo)
{
var length = reader.ReadFlip16();
#if USE_BC_GZIP
CachedRouterInfo = new I2PRouterInfo(
new BufRefLen(LZUtils.BCGZipDecompressNew(new BufLen(reader, 0, length))), true);
#else
using (var ms = new MemoryStream())
{
ms.Write(reader.BaseArray, reader.BaseArrayOffset, length);
ms.Position = 0;
using (var gzs = new GZipStream(ms, CompressionMode.Decompress))
{
var gzdata = StreamUtils.Read(gzs);
CachedRouterInfo = new I2PRouterInfo(new BufRefLen(gzdata), true);
}
}
#endif
reader.Seek(length);
}
else
{
CachedLeaseSet = new I2PLeaseSet(reader);
}
}
public SSUDataMessage(BufRef reader, DataDefragmenter fragments)
{
var dataflags = (DataMessageFlags)reader.Read8();
#if LOG_ALL_TRANSPORT
Logging.LogTransport("SSU DataMessage rececived flag: " + dataflags.ToString());
#endif
var explicitacks = (dataflags & DataMessageFlags.ExplicitAcks) != 0;
var acksbitfields = (dataflags & DataMessageFlags.BitfieldAcks) != 0;
ECN = (dataflags & DataMessageFlags.ECN) != 0;
var extdata = (dataflags & DataMessageFlags.ExtendedDataIncluded) != 0;
if (explicitacks)
{
ExplicitAcks = new List <uint>();
var acks = reader.Read8();
for (int i = 0; i < acks; ++i)
{
ExplicitAcks.Add(reader.Read32());
}
}
if (acksbitfields)
{
var bitfields = reader.Read8();
AckBitfields = new List <KeyValuePair <uint, List <byte> > >(bitfields);
for (int i = 0; i < bitfields; ++i)
{
var msgid = reader.Read32();
var bfs = new List <byte>(10);
byte bf;
while (true)
{
bf = reader.Read8();
bfs.Add((byte)(bf & 0x7f));
if ((bf & 0x80) == 0)
{
break;
}
}
AckBitfields.Add(new KeyValuePair <uint, List <byte> >(msgid, bfs));
}
}
if (extdata)
{
var datasize = reader.Read8();
ExtData = reader.ReadBufLen(datasize);
}
var fragcount = reader.Read8();
for (int i = 0; i < fragcount; ++i)
{
var frag = new DataFragment(reader);
var newmessage = fragments.Add(frag);
if (newmessage != null)
{
if (NewMessages == null)
{
NewMessages = new List <RebuildI2NPMessage>();
}
NewMessages.Add(newmessage);
}
}
}
public I2PTunnelId(BufRef buf)
{
Id = buf.Read32();
}