85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package outbound
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import (
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"context"
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"crypto/tls"
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"net"
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"os"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/common/dialer"
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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/common"
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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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)
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var _ adapter.Outbound = (*ShadowTLS)(nil)
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type ShadowTLS struct {
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myOutboundAdapter
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dialer N.Dialer
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serverAddr M.Socksaddr
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tlsConfig *tls.Config
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}
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func NewShadowTLS(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowTLSOutboundOptions) (*ShadowTLS, error) {
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outbound := &ShadowTLS{
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myOutboundAdapter: myOutboundAdapter{
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protocol: C.TypeShadowTLS,
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network: []string{N.NetworkTCP},
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router: router,
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logger: logger,
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tag: tag,
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},
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dialer: dialer.New(router, options.DialerOptions),
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serverAddr: options.ServerOptions.Build(),
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}
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if options.TLS == nil || !options.TLS.Enabled {
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return nil, C.ErrTLSRequired
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}
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options.TLS.MinVersion = "1.2"
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options.TLS.MaxVersion = "1.2"
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var err error
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outbound.tlsConfig, err = dialer.TLSConfig(options.Server, common.PtrValueOrDefault(options.TLS))
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if err != nil {
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return nil, err
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}
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return outbound, nil
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}
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func (s *ShadowTLS) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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switch N.NetworkName(network) {
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case N.NetworkTCP:
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default:
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return nil, os.ErrInvalid
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}
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conn, err := s.dialer.DialContext(ctx, N.NetworkTCP, s.serverAddr)
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if err != nil {
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return nil, err
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}
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tlsConn, err := dialer.TLSClient(ctx, conn, s.tlsConfig)
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if err != nil {
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return nil, err
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}
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err = tlsConn.HandshakeContext(ctx)
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if err != nil {
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return nil, err
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}
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return conn, nil
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}
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func (s *ShadowTLS) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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return nil, os.ErrInvalid
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}
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func (s *ShadowTLS) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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return NewConnection(ctx, s, conn, metadata)
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}
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func (s *ShadowTLS) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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return os.ErrInvalid
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}
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