XTLS/Xray-core · error

already initialized

Error message

already initialized

What it means

Error "already initialized" thrown in XTLS/Xray-core.

Source

Thrown at proxy/vless/encryption/server.go:45

	NfsPKeysBytes [][]byte
	Hash32s       [][32]byte
	RelaysLength  int
	XorMode       uint32
	SecondsFrom   int64
	SecondsTo     int64
	PaddingLens   [][3]int
	PaddingGaps   [][3]int

	RWLock   sync.RWMutex
	Closed   bool
	Lasts    map[int64][16]byte
	Tickets  [][16]byte
	Sessions map[[16]byte]*ServerSession
}

func (i *ServerInstance) Init(nfsSKeysBytes [][]byte, xorMode uint32, secondsFrom, secondsTo int64, padding string) (err error) {
	if i.NfsSKeys != nil {
		return errors.New("already initialized")
	}
	l := len(nfsSKeysBytes)
	if l == 0 {
		return errors.New("empty nfsSKeysBytes")
	}
	i.NfsSKeys = make([]any, l)
	i.NfsPKeysBytes = make([][]byte, l)
	i.Hash32s = make([][32]byte, l)
	for j, k := range nfsSKeysBytes {
		if len(k) == 32 {
			if i.NfsSKeys[j], err = ecdh.X25519().NewPrivateKey(k); err != nil {
				return
			}
			i.NfsPKeysBytes[j] = i.NfsSKeys[j].(*ecdh.PrivateKey).PublicKey().Bytes()
			i.RelaysLength += 32 + 32
		} else {
			if i.NfsSKeys[j], err = mlkem.NewDecapsulationKey768(k); err != nil {
				return

View on GitHub (pinned to 7d214f8b09)

When it happens

Trigger: Thrown at proxy/vless/encryption/server.go:45 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of XTLS/Xray-core@7d214f8b09 (2026-08-15). Data as JSON: /api/errors/4729e26e92c6bb5f. Report an issue: GitHub.