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udp: fix proxy protocol header sent on every packet instead of first packet only (#5119)

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fatedier
2026-01-09 11:33:00 +08:00
committed by GitHub
parent 1245f8804e
commit 3370bd53f5
2 changed files with 6 additions and 2 deletions
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4
pkg/proto/udp/udp.go
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@@ -124,8 +124,8 @@ func Forwarder(dstAddr *net.UDPAddr, readCh <-chan *msg.UDPPacket, sendCh chan<-
}
mu.Unlock()
// Add proxy protocol header if configured
if proxyProtocolVersion != "" && udpMsg.RemoteAddr != nil {
// Add proxy protocol header if configured (only for the first packet of a new connection)
if !ok && proxyProtocolVersion != "" && udpMsg.RemoteAddr != nil {
ppBuf, err := netpkg.BuildProxyProtocolHeader(udpMsg.RemoteAddr, dstAddr, proxyProtocolVersion)
if err == nil {
// Prepend proxy protocol header to the UDP payload