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Fix backpressure issue when TUN is disabled

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This commit is contained in:
Neil Alexander
2025-11-23 22:06:25 +00:00
parent b43e213c32
commit bde65aa239
2 changed files with 5 additions and 2 deletions
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4
src/tun/iface.go
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@@ -41,7 +41,9 @@ func (tun *TunAdapter) queue() {
tun.log.Errorln("Exiting TUN writer due to core read error:", err) tun.log.Errorln("Exiting TUN writer due to core read error:", err)
return return
} }
tun.ch <- p[:n] if tun.ch != nil {
tun.ch <- p[:n]
}
} }
} }

3
src/tun/tun.go
View File

@@ -125,8 +125,9 @@ func (tun *TunAdapter) _start() error {
if tun.config.name == "none" || tun.config.name == "dummy" { if tun.config.name == "none" || tun.config.name == "dummy" {
tun.log.Debugln("Not starting TUN as ifname is none or dummy") tun.log.Debugln("Not starting TUN as ifname is none or dummy")
tun.isEnabled = false tun.isEnabled = false
// Need to keep the queue goroutine running to stop underlying
// layers from getting blocked.
go tun.queue() go tun.queue()
go tun.write()
return nil return nil
} }
mtu := uint64(tun.config.mtu) mtu := uint64(tun.config.mtu)