public static PacketPayload.CursorWritingContext StartWriting(MemoryCursor cursor,
PacketVersion version,
PacketConnectionId destinationConnectionId,
PacketConnectionId sourceConnectionId,
PacketNumber largestAcknowledgedPacketNumber,
PacketNumber packetNumber)
{
var startOffset = cursor.AsOffset();
var firstByte = new PacketFirstByte()
.SetHandshake()
.SetMaxPacketNumberLength();
firstByte.Write(cursor);
version.WriteBytes(cursor);
destinationConnectionId.WriteBytes(cursor);
sourceConnectionId.WriteBytes(cursor);
var context = PacketPayload.StartPacketWriting(cursor, startOffset);
var packetNumberBytes = firstByte.SlicePacketNumberBytes(cursor);
packetNumber
.EncodeByLargestAcknowledged(largestAcknowledgedPacketNumber)
.Fill(packetNumberBytes.Span);
return(context);
}
public static PacketPayload.CursorWritingContext StartWriting(MemoryCursor cursor,
PacketVersion version,
PacketConnectionId destinationConnectionId,
PacketConnectionId sourceConnectionId,
PacketNumber packetNumber,
PacketToken token)
{
var startOffset = cursor.AsOffset();
var firstByte = new PacketFirstByte()
.SetInitial()
.SetMaxPacketNumberLength();
firstByte.Write(cursor);
version.WriteBytes(cursor);
destinationConnectionId.WriteBytes(cursor);
sourceConnectionId.WriteBytes(cursor);
token.WriteBytes(cursor);
var context = PacketPayload.StartPacketWriting(cursor, startOffset);
var packetNumberBytes = firstByte.SlicePacketNumberBytes(cursor);
packetNumber.Fill(packetNumberBytes.Span);
return(context);
}
public static PacketPayload.LongProtectedWritingContext StartProtectedWriting(IAead aead,
ICipher cipher,
MemoryCursor cursor,
PacketVersion version,
PacketConnectionId destinationConnectionId,
PacketConnectionId sourceConnectionId,
PacketNumber packetNumber,
PacketNumber largestAcknowledgedPacketNumber)
{
var startPacketOffset = cursor.AsOffset();
var firstByte = new PacketFirstByte()
.SetHandshake()
.SetMaxPacketNumberLength();
firstByte.Write(cursor);
version.WriteBytes(cursor);
destinationConnectionId.WriteBytes(cursor);
sourceConnectionId.WriteBytes(cursor);
return(PacketPayload.StartLongProtectedPacketWriting(cursor, aead, cipher, startPacketOffset, firstByte, packetNumber, largestAcknowledgedPacketNumber));
}
