mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-16 06:42:22 +08:00
80 lines
2.3 KiB
Go
80 lines
2.3 KiB
Go
package outbound
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import (
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"context"
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"net"
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"github.com/sagernet/sing-box/adapter"
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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-box/outbound/dialer"
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"github.com/sagernet/sing/common/bufio"
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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/protocol/socks"
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)
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var _ adapter.Outbound = (*Socks)(nil)
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type Socks struct {
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myOutboundAdapter
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client *socks.Client
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}
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func NewSocks(router adapter.Router, logger log.Logger, tag string, options option.SocksOutboundOptions) (*Socks, error) {
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detour := dialer.New(router, options.DialerOptions)
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var version socks.Version
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var err error
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if options.Version != "" {
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version, err = socks.ParseVersion(options.Version)
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} else {
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version = socks.Version5
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}
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if err != nil {
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return nil, err
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}
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return &Socks{
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myOutboundAdapter{
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protocol: C.TypeSocks,
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logger: logger,
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tag: tag,
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network: options.Network.Build(),
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},
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socks.NewClient(detour, M.ParseSocksaddrHostPort(options.Server, options.ServerPort), version, options.Username, options.Password),
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}, nil
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}
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func (h *Socks) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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switch network {
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case C.NetworkTCP:
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h.logger.WithContext(ctx).Info("outbound connection to ", destination)
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case C.NetworkUDP:
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h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
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default:
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panic("unknown network " + network)
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}
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return h.client.DialContext(ctx, network, destination)
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}
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func (h *Socks) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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h.logger.WithContext(ctx).Info("outbound packet connection to ", destination)
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return h.client.ListenPacket(ctx, destination)
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}
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func (h *Socks) NewConnection(ctx context.Context, conn net.Conn, destination M.Socksaddr) error {
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outConn, err := h.DialContext(ctx, C.NetworkTCP, destination)
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if err != nil {
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return err
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}
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return bufio.CopyConn(ctx, conn, outConn)
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}
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func (h *Socks) NewPacketConnection(ctx context.Context, conn N.PacketConn, destination M.Socksaddr) error {
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outConn, err := h.ListenPacket(ctx, destination)
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if err != nil {
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return err
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}
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return bufio.CopyPacketConn(ctx, conn, bufio.NewPacketConn(outConn))
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}
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