Fixes

protocol/wapd/listener.go

@@ -1,52 +0,0 @@
-package wapd
-
-import (
-	"fmt"
-	"net/netip"
-
-	"github.com/insomniacslk/dhcp/dhcpv4"
-	_ "github.com/insomniacslk/dhcp/dhcpv6"
-	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	"github.com/sagernet/sing/transport/udp"
-	"github.com/sirupsen/logrus"
-)
-
-type Listener struct {
-	*udp.Listener
-	E.Handler
-	option dhcpv4.Option
-}
-
-func NewListener(bind netip.Addr, proxyURL string, errorHandler E.Handler) *Listener {
-	l := &Listener{
-		Handler: errorHandler,
-		option: dhcpv4.Option{
-			Code:  OptionCode,
-			Value: dhcpv4.String(fmt.Sprint(proxyURL)),
-		},
-	}
-	l.Listener = udp.NewUDPListener(netip.AddrPortFrom(bind, dhcpv4.ServerPort), l)
-	return l
-}
-
-func (l *Listener) NewPacket(packet *buf.Buffer, metadata M.Metadata) error {
-	request, err := dhcpv4.FromBytes(packet.Bytes())
-	if err != nil {
-		return E.Cause(err, "bad dhcpv4 packet")
-	}
-	logrus.Trace("DHCPv4 request ", request)
-	if !request.IsOptionRequested(OptionCode) {
-		return nil
-	}
-	reply, err := dhcpv4.NewReplyFromRequest(request, dhcpv4.WithOption(l.option))
-	if err != nil {
-		return E.Cause(err, "create response")
-	}
-	_, err = l.WriteTo(reply.ToBytes(), metadata.Source.UDPAddr())
-	if err != nil {
-		return E.Cause(err, "write response")
-	}
-	return nil
-}

protocol/wapd/protocol.go

@@ -1,13 +0,0 @@
-package wapd
-
-var OptionCode = optionCode{}
-
-type optionCode struct{}
-
-func (C optionCode) Code() uint8 {
-	return 252
-}
-
-func (C optionCode) String() string {
-	return "Web Proxy Auto-Discovery Protocol"
-}