82 lines
2.1 KiB
Go
82 lines
2.1 KiB
Go
package tls
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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/badtls"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/option"
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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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func NewDialerFromOptions(router adapter.Router, dialer N.Dialer, serverAddress string, options option.OutboundTLSOptions) (N.Dialer, error) {
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if !options.Enabled {
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return dialer, nil
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}
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config, err := NewClient(router, serverAddress, options)
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if err != nil {
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return nil, err
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}
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return NewDialer(dialer, config), nil
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}
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func NewClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
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if !options.Enabled {
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return nil, nil
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}
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if options.ECH != nil && options.ECH.Enabled {
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return NewECHClient(router, serverAddress, options)
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} else if options.UTLS != nil && options.UTLS.Enabled {
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return NewUTLSClient(router, serverAddress, options)
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} else {
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return NewSTDClient(router, serverAddress, options)
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}
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}
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func ClientHandshake(ctx context.Context, conn net.Conn, config Config) (Conn, error) {
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tlsConn := config.Client(conn)
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ctx, cancel := context.WithTimeout(ctx, C.TCPTimeout)
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defer cancel()
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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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if stdConn, isSTD := tlsConn.(*tls.Conn); isSTD {
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var badConn badtls.TLSConn
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badConn, err = badtls.Create(stdConn)
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if err == nil {
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return badConn, nil
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}
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}
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return tlsConn, nil
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}
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type Dialer struct {
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dialer N.Dialer
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config Config
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}
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func NewDialer(dialer N.Dialer, config Config) N.Dialer {
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return &Dialer{dialer, config}
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}
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func (d *Dialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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if network != N.NetworkTCP {
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return nil, os.ErrInvalid
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}
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conn, err := d.dialer.DialContext(ctx, network, destination)
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if err != nil {
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return nil, err
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}
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return ClientHandshake(ctx, conn, d.config)
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}
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func (d *Dialer) 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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