Remove reserved

transport/wireguard/client_bind.go

@@ -21,32 +21,28 @@ import (
 var _ conn.Bind = (*ClientBind)(nil)
 
 type ClientBind struct {
-	ctx                 context.Context
-	logger              logger.Logger
-	pauseManager        pause.Manager
-	bindCtx             context.Context
-	bindDone            context.CancelFunc
-	dialer              N.Dialer
-	reservedForEndpoint map[netip.AddrPort][3]uint8
-	connAccess          sync.Mutex
-	conn                *wireConn
-	done                chan struct{}
-	isConnect           bool
-	connectAddr         netip.AddrPort
-	reserved            [3]uint8
+	ctx          context.Context
+	logger       logger.Logger
+	pauseManager pause.Manager
+	bindCtx      context.Context
+	bindDone     context.CancelFunc
+	dialer       N.Dialer
+	connAccess   sync.Mutex
+	conn         *wireConn
+	done         chan struct{}
+	isConnect    bool
+	connectAddr  netip.AddrPort
 }
 
-func NewClientBind(ctx context.Context, logger logger.Logger, dialer N.Dialer, isConnect bool, connectAddr netip.AddrPort, reserved [3]uint8) *ClientBind {
+func NewClientBind(ctx context.Context, logger logger.Logger, dialer N.Dialer, isConnect bool, connectAddr netip.AddrPort) *ClientBind {
 	return &ClientBind{
-		ctx:                 ctx,
-		logger:              logger,
-		pauseManager:        service.FromContext[pause.Manager](ctx),
-		dialer:              dialer,
-		reservedForEndpoint: make(map[netip.AddrPort][3]uint8),
-		done:                make(chan struct{}),
-		isConnect:           isConnect,
-		connectAddr:         connectAddr,
-		reserved:            reserved,
+		ctx:          ctx,
+		logger:       logger,
+		pauseManager: service.FromContext[pause.Manager](ctx),
+		dialer:       dialer,
+		done:         make(chan struct{}),
+		isConnect:    isConnect,
+		connectAddr:  connectAddr,
 	}
 }
 
@@ -134,10 +130,6 @@ func (c *ClientBind) receive(packets [][]byte, sizes []int, eps []conn.Endpoint)
 		return
 	}
 	sizes[0] = n
-	if n > 3 {
-		b := packets[0]
-		clear(b[1:4])
-	}
 	eps[0] = remoteEndpoint(M.SocksaddrFromNet(addr).Unwrap().AddrPort())
 	count = 1
 	return
@@ -174,13 +166,6 @@ func (c *ClientBind) Send(bufs [][]byte, ep conn.Endpoint, offset int) error {
 		if offset > 0 {
 			buf = buf[offset:]
 		}
-		if len(buf) > 3 {
-			reserved, loaded := c.reservedForEndpoint[destination]
-			if !loaded {
-				reserved = c.reserved
-			}
-			copy(buf[1:4], reserved[:])
-		}
 		_, err = udpConn.WriteToUDPAddrPort(buf, destination)
 		if err != nil {
 			udpConn.Close()
@@ -202,10 +187,6 @@ func (c *ClientBind) BatchSize() int {
 	return 1
 }
 
-func (c *ClientBind) SetReservedForEndpoint(destination netip.AddrPort, reserved [3]byte) {
-	c.reservedForEndpoint[destination] = reserved
-}
-
 type wireConn struct {
 	net.PacketConn
 	conn   net.Conn

transport/wireguard/endpoint.go

@@ -82,12 +82,6 @@ func NewEndpoint(options EndpointOptions) (*Endpoint, error) {
 		if len(rawPeer.AllowedIPs) == 0 {
 			return nil, E.New("missing allowed ips for peer ", peerIndex)
 		}
-		if len(rawPeer.Reserved) > 0 {
-			if len(rawPeer.Reserved) != 3 {
-				return nil, E.New("invalid reserved value for peer ", peerIndex, ", required 3 bytes, got ", len(peer.reserved))
-			}
-			copy(peer.reserved[:], rawPeer.Reserved[:])
-		}
 		peers = append(peers, peer)
 	}
 	var allowedPrefixBuilder netipx.IPSetBuilder
@@ -162,21 +156,12 @@ func (e *Endpoint) Start(resolve bool) error {
 		var (
 			isConnect   bool
 			connectAddr netip.AddrPort
-			reserved    [3]uint8
 		)
 		if len(e.peers) == 1 && e.peers[0].endpoint.IsValid() {
 			isConnect = true
 			connectAddr = e.peers[0].endpoint
-			reserved = e.peers[0].reserved
-		}
-		bind = NewClientBind(e.options.Context, e.options.Logger, e.options.Dialer, isConnect, connectAddr, reserved)
-	}
-	if isWgListener || len(e.peers) > 1 {
-		for _, peer := range e.peers {
-			if peer.reserved != [3]uint8{} {
-				bind.SetReservedForEndpoint(peer.endpoint, peer.reserved)
-			}
 		}
+		bind = NewClientBind(e.options.Context, e.options.Logger, e.options.Dialer, isConnect, connectAddr)
 	}
 	err := e.tunDevice.Start()
 	if err != nil {
@@ -336,7 +321,6 @@ type peerConfig struct {
 	preSharedKeyHex string
 	allowedIPs      []netip.Prefix
 	keepalive       uint16
-	reserved        [3]uint8
 }
 
 func (c peerConfig) GenerateIpcLines() string {

transport/wireguard/endpoint_options.go

@@ -39,7 +39,6 @@ type PeerOptions struct {
 	PreSharedKey                string
 	AllowedIPs                  []netip.Prefix
 	PersistentKeepaliveInterval uint16
-	Reserved                    []uint8
 }
 
 type AmneziaOptions struct {