86 lines
2 KiB
Go
86 lines
2 KiB
Go
package outbound
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import (
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"context"
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"errors"
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"net/netip"
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N "github.com/Dreamacro/clash/common/net"
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"github.com/Dreamacro/clash/component/dialer"
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"github.com/Dreamacro/clash/component/resolver"
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C "github.com/Dreamacro/clash/constant"
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)
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type Direct struct {
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*Base
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}
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type DirectOption struct {
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BasicOption
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Name string `proxy:"name"`
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}
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// DialContext implements C.ProxyAdapter
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func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
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opts = append(opts, dialer.WithResolver(resolver.DefaultResolver))
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c, err := dialer.DialContext(ctx, "tcp", metadata.RemoteAddress(), d.Base.DialOptions(opts...)...)
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if err != nil {
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return nil, err
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}
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N.TCPKeepAlive(c)
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return NewConn(c, d), nil
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}
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// ListenPacketContext implements C.ProxyAdapter
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func (d *Direct) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
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// net.UDPConn.WriteTo only working with *net.UDPAddr, so we need a net.UDPAddr
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if !metadata.Resolved() {
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ip, err := resolver.ResolveIPWithResolver(ctx, metadata.Host, resolver.DefaultResolver)
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if err != nil {
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return nil, errors.New("can't resolve ip")
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}
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metadata.DstIP = ip
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}
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pc, err := dialer.NewDialer(d.Base.DialOptions(opts...)...).ListenPacket(ctx, "udp", "", netip.AddrPortFrom(metadata.DstIP, metadata.DstPort))
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if err != nil {
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return nil, err
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}
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return newPacketConn(pc, d), nil
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}
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func NewDirectWithOption(option DirectOption) *Direct {
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return &Direct{
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Base: &Base{
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name: option.Name,
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tp: C.Direct,
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udp: true,
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tfo: option.TFO,
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mpTcp: option.MPTCP,
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iface: option.Interface,
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rmark: option.RoutingMark,
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prefer: C.NewDNSPrefer(option.IPVersion),
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},
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}
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}
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func NewDirect() *Direct {
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return &Direct{
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Base: &Base{
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name: "DIRECT",
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tp: C.Direct,
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udp: true,
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prefer: C.DualStack,
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},
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}
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}
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func NewCompatible() *Direct {
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return &Direct{
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Base: &Base{
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name: "COMPATIBLE",
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tp: C.Compatible,
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udp: true,
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prefer: C.DualStack,
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},
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}
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}
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