func (ic *incoming) Init(session *Session) {
ic.session = session
ic.handshake = &session.handshake
ic.state = stateHandshakeNoKey
ic.stateChan = session.stateChan
ic.cipher.SetRandomKey()
ic.handshakeReassembly = buf.BeginReassembly(prim.PublicBinaryLen)
ic.frameReassembly = buf.BeginReassembly(session.MTU + frameOverhead)
nbufs := 3
ic.frontGrams = make(chan []byte, nbufs)
ic.frontBufs = make(chan []byte, nbufs)
for i := 0; i < nbufs; i++ {
ic.frontBufs <- make([]byte, 0, session.MTU)
}
ic.frontHeldBuf = nil
ic.frontHeldTail = nil
}
func (og *outgoing) Init(session *Session, initialData []byte) {
og.session = session
og.handshake = &session.handshake
og.state = stateHandshakeNoKey
og.stateChan = session.stateChan
og.cipher.SetRandomKey()
og.queued = buf.BeginReassembly(prim.PublicBinaryLen + 2*prim.AuthLen + session.MTU + frameOverhead)
og.queued.CopyIn(initialData)
nbufs := 3
og.frontGrams = make(chan []byte, nbufs)
og.frontBufs = make(chan []byte, nbufs)
for i := 0; i < nbufs; i++ {
og.frontBufs <- make([]byte, 0, session.MTU)
}
}
func (ic *incoming) receivedEphemeralKey() {
log.Debug("<- received ephemeral key")
ic.handshake.completeWith(ic.handshakeReassembly.Data())
inKeys := &ic.handshake.in
ic.cipher.SetKey(inKeys.cipherKey)
ic.mac.SetKey(inKeys.authKey)
ic.mac.Reset(0)
ic.macPosition = 0
ic.confirm = inKeys.confirm
log.Debug("<- expect confirmation starting with %x", ic.confirm[:2])
inKeys.Clear()
ic.handshakeReassembly = buf.BeginReassembly(prim.AuthLen)
ic.state = stateHandshakeKey
ic.stateChan <- ic.state
}