世界
91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
package bridge
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import (
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"context"
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"net"
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"net/netip"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/adapter/outbound"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-tun"
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E "github.com/sagernet/sing/common/exceptions"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/service"
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)
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func RegisterOutbound(registry *outbound.Registry) {
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outbound.Register[option.BridgeOutboundOptions](registry, C.TypeBridge, NewOutbound)
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}
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var (
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_ adapter.Outbound = (*Outbound)(nil)
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_ adapter.FlowOutbound = (*Outbound)(nil)
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_ adapter.Lifecycle = (*Outbound)(nil)
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)
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type Backend interface {
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adapter.Lifecycle
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tun.Port
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}
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type Outbound struct {
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outbound.Adapter
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backend Backend
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}
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func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.BridgeOutboundOptions) (adapter.Outbound, error) {
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networkManager := service.FromContext[adapter.NetworkManager](ctx)
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outboundBackend, err := newBackend(ctx, logger, networkManager, tag, options)
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if err != nil {
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return nil, err
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}
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return &Outbound{
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Adapter: outbound.NewAdapter(C.TypeBridge, tag, []string{N.NetworkTCP, N.NetworkUDP, N.NetworkICMP}, nil),
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backend: outboundBackend,
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}, nil
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}
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func (o *Outbound) Start(stage adapter.StartStage) error {
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return o.backend.Start(stage)
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}
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func (o *Outbound) Close() error {
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return o.backend.Close()
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}
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func (o *Outbound) SupportsFlow(network string) bool {
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return true
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}
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func (o *Outbound) PortAddresses() (netip.Addr, netip.Addr) {
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return o.backend.PortAddresses()
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}
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func (o *Outbound) PortMTU() uint32 {
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return o.backend.PortMTU()
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}
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func (o *Outbound) AttachReturn(returnPath tun.Return) error {
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return o.backend.AttachReturn(returnPath)
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}
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func (o *Outbound) DetachReturn(returnPath tun.Return) error {
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return o.backend.DetachReturn(returnPath)
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}
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func (o *Outbound) WritePackets(packets [][]byte) error {
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return o.backend.WritePackets(packets)
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}
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func (o *Outbound) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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return nil, E.New("Only L3 traffic is supported by bridge")
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}
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func (o *Outbound) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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return nil, E.New("Only L3 traffic is supported by bridge")
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}
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