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Add callClose to UDP Dispatcher 

Fixes https://github.com/XTLS/Xray-core/issues/1611
This commit is contained in:
RPRX 2023-02-08 14:59:14 +08:00 committed by GitHub
parent f32921df30
commit 9046eda5ce
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1 changed files with 28 additions and 11 deletions
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39
transport/internet/udp/dispatcher.go
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@ -31,6 +31,7 @@ type Dispatcher struct {
conns map[net.Destination]*connEntry
dispatcher routing.Dispatcher
callback ResponseCallback
callClose func() error
}
func NewDispatcher(dispatcher routing.Dispatcher, callback ResponseCallback) *Dispatcher {
@ -79,7 +80,7 @@ func (v *Dispatcher) getInboundRay(ctx context.Context, dest net.Destination) (*
cancel: removeRay,
}
v.conns[dest] = entry
go handleInput(ctx, entry, dest, v.callback)
go handleInput(ctx, entry, dest, v.callback, v.callClose)
return entry, nil
}
@ -102,8 +103,13 @@ func (v *Dispatcher) Dispatch(ctx context.Context, destination net.Destination,
}
}
func handleInput(ctx context.Context, conn *connEntry, dest net.Destination, callback ResponseCallback) {
defer conn.cancel()
func handleInput(ctx context.Context, conn *connEntry, dest net.Destination, callback ResponseCallback, callClose func() error) {
defer func() {
conn.cancel()
if callClose != nil {
callClose()
}
}()
input := conn.link.Reader
timer := conn.timer
@ -144,7 +150,12 @@ func DialDispatcher(ctx context.Context, dispatcher routing.Dispatcher) (net.Pac
done: done.New(),
}
d := NewDispatcher(dispatcher, c.callback)
d := &Dispatcher{
conns: make(map[net.Destination]*connEntry),
dispatcher: dispatcher,
callback: c.callback,
callClose: c.Close,
}
c.dispatcher = d
return c, nil
}
@ -162,16 +173,22 @@ func (c *dispatcherConn) callback(ctx context.Context, packet *udp.Packet) {
}
func (c *dispatcherConn) ReadFrom(p []byte) (int, net.Addr, error) {
var packet *udp.Packet
s:
select {
case <-c.done.Wait():
return 0, nil, io.EOF
case packet := <-c.cache:
n := copy(p, packet.Payload.Bytes())
return n, &net.UDPAddr{
IP: packet.Source.Address.IP(),
Port: int(packet.Source.Port),
}, nil
select {
case packet = <-c.cache:
break s
default:
return 0, nil, io.EOF
}
case packet = <-c.cache:
}
return copy(p, packet.Payload.Bytes()), &net.UDPAddr{
IP: packet.Source.Address.IP(),
Port: int(packet.Source.Port),
}, nil
}
func (c *dispatcherConn) WriteTo(p []byte, addr net.Addr) (int, error) {