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Crazy sekai overturns the small pond

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世界
2024-10-21 23:38:34 +08:00
parent ce5b4b06b5
commit bec88944e0
139 changed files with 2866 additions and 1555 deletions
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49
inbound/direct.go
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@@ -3,7 +3,6 @@ package inbound
import (
"context"
"net"
"net/netip"
"time"
"github.com/sagernet/sing-box/adapter"
@@ -13,14 +12,14 @@ import (
"github.com/sagernet/sing/common/buf"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
"github.com/sagernet/sing/common/udpnat"
"github.com/sagernet/sing/common/udpnat2"
)
var _ adapter.Inbound = (*Direct)(nil)
type Direct struct {
myInboundAdapter
udpNat *udpnat.Service[netip.AddrPort]
udpNat *udpnat.Service
overrideOption int
overrideDestination M.Socksaddr
}
@@ -54,10 +53,9 @@ func NewDirect(ctx context.Context, router adapter.Router, logger log.ContextLog
} else {
udpTimeout = C.UDPTimeout
}
inbound.udpNat = udpnat.New[netip.AddrPort](int64(udpTimeout.Seconds()), adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound))
inbound.udpNat = udpnat.New(inbound, inbound.preparePacketConnection, udpTimeout, false)
inbound.connHandler = inbound
inbound.packetHandler = inbound
inbound.packetUpstream = inbound.udpNat
return inbound
}
@@ -76,29 +74,38 @@ func (d *Direct) NewConnection(ctx context.Context, conn net.Conn, metadata adap
return d.router.RouteConnection(ctx, conn, metadata)
}
func (d *Direct) NewPacket(ctx context.Context, conn N.PacketConn, buffer *buf.Buffer, metadata adapter.InboundContext) error {
func (d *Direct) NewPacketEx(buffer *buf.Buffer, source M.Socksaddr) {
var destination M.Socksaddr
switch d.overrideOption {
case 1:
metadata.Destination = d.overrideDestination
destination = d.overrideDestination
case 2:
destination := d.overrideDestination
destination.Port = metadata.Destination.Port
metadata.Destination = destination
destination = d.overrideDestination
destination.Port = source.Port
case 3:
metadata.Destination.Port = d.overrideDestination.Port
destination = source
destination.Port = d.overrideDestination.Port
}
d.udpNat.NewContextPacket(ctx, metadata.Source.AddrPort(), buffer, adapter.UpstreamMetadata(metadata), func(natConn N.PacketConn) (context.Context, N.PacketWriter) {
return adapter.WithContext(log.ContextWithNewID(ctx), &metadata), &udpnat.DirectBackWriter{Source: conn, Nat: natConn}
})
return nil
d.udpNat.NewPacket([][]byte{buffer.Bytes()}, source, destination, nil)
}
func (d *Direct) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
return d.router.RouteConnection(ctx, conn, metadata)
func (d *Direct) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
d.newConnectionEx(ctx, conn, metadata, onClose)
}
func (d *Direct) newPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
ctx = log.ContextWithNewID(ctx)
d.logger.InfoContext(ctx, "inbound packet connection from ", metadata.Source)
return d.router.RoutePacketConnection(ctx, conn, metadata)
func (d *Direct) NewPacketConnectionEx(ctx context.Context, conn N.PacketConn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
d.newPacketConnectionEx(ctx, conn, d.createPacketMetadataEx(source, destination), onClose)
}
func (d *Direct) preparePacketConnection(source M.Socksaddr, destination M.Socksaddr, userData any) (bool, context.Context, N.PacketWriter, N.CloseHandlerFunc) {
return true, d.ctx, &directPacketWriter{d.packetConn(), source}, nil
}
type directPacketWriter struct {
writer N.PacketWriter
source M.Socksaddr
}
func (w *directPacketWriter) WritePacket(buffer *buf.Buffer, addr M.Socksaddr) error {
return w.writer.WritePacket(buffer, w.source)
}