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https://github.com/SagerNet/sing-box.git
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Add option for custom wireguard reserved bytes
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parent
d583b35717
commit
35886b88d7
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@ -9,6 +9,7 @@ type WireGuardOutboundOptions struct {
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PrivateKey string `json:"private_key"`
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PeerPublicKey string `json:"peer_public_key"`
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PreSharedKey string `json:"pre_shared_key,omitempty"`
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Reserved []uint8 `json:"reserved,omitempty"`
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MTU uint32 `json:"mtu,omitempty"`
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Network NetworkList `json:"network,omitempty"`
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}
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@ -45,8 +45,15 @@ func NewWireGuard(ctx context.Context, router adapter.Router, logger log.Context
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tag: tag,
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},
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}
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var reserved [3]uint8
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if len(options.Reserved) > 0 {
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if len(options.Reserved) != 3 {
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return nil, E.New("invalid reserved value, required 3 bytes, got ", len(options.Reserved))
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}
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copy(reserved[:], options.Reserved)
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}
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peerAddr := options.ServerOptions.Build()
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outbound.bind = wireguard.NewClientBind(ctx, dialer.New(router, options.DialerOptions), peerAddr)
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outbound.bind = wireguard.NewClientBind(ctx, dialer.New(router, options.DialerOptions), peerAddr, reserved)
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localPrefixes := common.Map(options.LocalAddress, option.ListenPrefix.Build)
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if len(localPrefixes) == 0 {
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return nil, E.New("missing local address")
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@ -18,16 +18,18 @@ type ClientBind struct {
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ctx context.Context
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dialer N.Dialer
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peerAddr M.Socksaddr
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reserved [3]uint8
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connAccess sync.Mutex
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conn *wireConn
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done chan struct{}
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}
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func NewClientBind(ctx context.Context, dialer N.Dialer, peerAddr M.Socksaddr) *ClientBind {
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func NewClientBind(ctx context.Context, dialer N.Dialer, peerAddr M.Socksaddr, reserved [3]uint8) *ClientBind {
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return &ClientBind{
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ctx: ctx,
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dialer: dialer,
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peerAddr: peerAddr,
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reserved: reserved,
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}
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}
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@ -89,6 +91,11 @@ func (c *ClientBind) receive(b []byte) (n int, ep conn.Endpoint, err error) {
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}
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return
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}
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if n > 3 {
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b[1] = 0
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b[2] = 0
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b[3] = 0
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}
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ep = Endpoint(c.peerAddr)
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return
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}
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@ -119,6 +126,11 @@ func (c *ClientBind) Send(b []byte, ep conn.Endpoint) error {
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if err != nil {
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return err
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}
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if len(b) > 3 {
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b[1] = c.reserved[0]
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b[2] = c.reserved[1]
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b[3] = c.reserved[2]
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}
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_, err = udpConn.Write(b)
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if err != nil {
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udpConn.Close()
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