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Add input packet debugging by source IP and universe

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Ian Gulliver
2026-01-30 15:21:25 -08:00
parent 73fc545070
commit 26b4c247e0
1 changed files with 48 additions and 11 deletions
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43
main.go
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@@ -11,6 +11,7 @@ import (
"os/signal"
"strconv"
"strings"
"sync"
"syscall"
"time"
@@ -31,6 +32,10 @@ type App struct {
artTargets map[uint16]*net.UDPAddr
sacnTargets map[uint16][]*net.UDPAddr
debug bool
inputMu sync.Mutex
inputBySrc map[string]uint64
inputByUniv map[string]uint64
}
func main() {
@@ -147,6 +152,8 @@ func main() {
artTargets: artTargets,
sacnTargets: sacnTargets,
debug: *debug,
inputBySrc: map[string]uint64{},
inputByUniv: map[string]uint64{},
}
// Create ArtNet receiver if enabled
@@ -180,7 +187,7 @@ func main() {
}
receiver.SetHandler(func(src *net.UDPAddr, pkt interface{}) {
if data, ok := pkt.(*sacn.DataPacket); ok {
app.HandleSACN(data.Universe, data.Data)
app.HandleSACN(src, data.Universe, data.Data)
}
})
app.sacnReceivers = append(app.sacnReceivers, receiver)
@@ -240,6 +247,11 @@ func (a *App) HandleDMX(src *net.UDPAddr, pkt *artnet.DMXPacket) {
log.Printf("[<-artnet] src=%s universe=%s seq=%d len=%d",
src.IP, pkt.Universe, pkt.Sequence, pkt.Length)
}
a.inputMu.Lock()
a.inputBySrc[src.IP.String()]++
a.inputByUniv[fmt.Sprintf("artnet:%d", pkt.Universe)]++
a.inputMu.Unlock()
u := config.Universe{Protocol: config.ProtocolArtNet, Number: uint16(pkt.Universe)}
a.sendOutputs(a.engine.Remap(u, pkt.Data))
}
@@ -261,10 +273,15 @@ func (a *App) HandlePollReply(src *net.UDPAddr, pkt *artnet.PollReplyPacket) {
}
// HandleSACN handles incoming sACN DMX data
func (a *App) HandleSACN(universe uint16, data [512]byte) {
func (a *App) HandleSACN(src *net.UDPAddr, universe uint16, data [512]byte) {
if a.debug {
log.Printf("[<-sacn] universe=%d", universe)
log.Printf("[<-sacn] src=%s universe=%d", src.IP, universe)
}
a.inputMu.Lock()
a.inputBySrc[src.IP.String()]++
a.inputByUniv[fmt.Sprintf("sacn:%d", universe)]++
a.inputMu.Unlock()
u := config.Universe{Protocol: config.ProtocolSACN, Number: universe}
a.sendOutputs(a.engine.Remap(u, data))
}
@@ -324,6 +341,26 @@ func (a *App) handleConfig(w http.ResponseWriter, r *http.Request) {
}
func (a *App) printStats() {
a.inputMu.Lock()
inputBySrc := a.inputBySrc
inputByUniv := a.inputByUniv
a.inputBySrc = map[string]uint64{}
a.inputByUniv = map[string]uint64{}
a.inputMu.Unlock()
if len(inputBySrc) > 0 {
log.Printf("[stats] input by source (last 10s):")
for src, count := range inputBySrc {
log.Printf("[stats] %s: %d packets", src, count)
}
}
if len(inputByUniv) > 0 {
log.Printf("[stats] input by universe (last 10s):")
for univ, count := range inputByUniv {
log.Printf("[stats] %s: %d packets", univ, count)
}
}
if len(a.cfg.Mappings) == 0 {
return
}