mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-08-31 08:44:16 -04:00
82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
package internet
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import (
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"crypto/tls"
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"errors"
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"net"
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"time"
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v2net "github.com/v2ray/v2ray-core/common/net"
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v2tls "github.com/v2ray/v2ray-core/transport/internet/tls"
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)
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var (
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ErrUnsupportedStreamType = errors.New("Unsupported stream type.")
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)
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type Dialer func(src v2net.Address, dest v2net.Destination) (Connection, error)
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var (
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TCPDialer Dialer
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KCPDialer Dialer
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RawTCPDialer Dialer
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UDPDialer Dialer
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)
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func Dial(src v2net.Address, dest v2net.Destination, settings *StreamSettings) (Connection, error) {
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var connection Connection
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var err error
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if dest.IsTCP() {
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switch {
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case settings.IsCapableOf(StreamConnectionTypeTCP):
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connection, err = TCPDialer(src, dest)
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case settings.IsCapableOf(StreamConnectionTypeKCP):
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connection, err = KCPDialer(src, dest)
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case settings.IsCapableOf(StreamConnectionTypeRawTCP):
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connection, err = RawTCPDialer(src, dest)
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default:
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return nil, ErrUnsupportedStreamType
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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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if settings.Security == StreamSecurityTypeNone {
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return connection, nil
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}
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config := settings.TLSSettings.GetTLSConfig()
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if dest.Address().IsDomain() {
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config.ServerName = dest.Address().Domain()
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}
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tlsConn := tls.Client(connection, config)
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return v2tls.NewConnection(tlsConn), nil
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}
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return UDPDialer(src, dest)
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}
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func DialToDest(src v2net.Address, dest v2net.Destination) (net.Conn, error) {
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dialer := &net.Dialer{
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Timeout: time.Second * 60,
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DualStack: true,
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}
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if src != nil && src != v2net.AnyIP {
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var addr net.Addr
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if dest.IsTCP() {
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addr = &net.TCPAddr{
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IP: src.IP(),
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Port: 0,
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}
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} else {
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addr = &net.UDPAddr{
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IP: src.IP(),
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Port: 0,
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}
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}
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dialer.LocalAddr = addr
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}
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return dialer.Dial(dest.Network().String(), dest.NetAddr())
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}
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