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Block/Blackhole outbound: Better blocking UDP (#6057)

Browse Source 
https://github.com/XTLS/Xray-core/issues/6051#issuecomment-4364008008

Fixes https://github.com/XTLS/Xray-core/issues/6052

---------

Co-authored-by: Meo597 <197331664+Meo597@users.noreply.github.com>
Co-authored-by: RPRX <63339210+RPRX@users.noreply.github.com>
This commit is contained in:
风扇滑翔翼
2026-05-02 23:27:30 +08:00
committed by GitHub
parent 1ead940a71
commit 8381a5a8a6
1 changed files with 15 additions and 1 deletions
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16
proxy/blackhole/blackhole.go
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@@ -6,7 +6,11 @@ import (
"time"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/buf"
"github.com/xtls/xray-core/common/dice"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/session"
"github.com/xtls/xray-core/common/signal"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/internet"
)
@@ -38,7 +42,17 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
// Sleep a little here to make sure the response is sent to client.
time.Sleep(time.Second)
}
common.Interrupt(link.Writer)
defer common.Interrupt(link.Writer)
defer common.Interrupt(link.Reader)
// wait to drain all the possible incoming UDP data
if ob.Target.Network == net.Network_UDP {
ctx, cancel := context.WithCancel(ctx)
timer := signal.CancelAfterInactivity(ctx, func() {
cancel()
}, time.Duration(30+dice.Roll(61))*time.Second)
go buf.Copy(link.Reader, buf.Discard, buf.UpdateActivity(timer))
<-ctx.Done()
}
return nil
}