netstack/icmp: toggle use of icmp forwarder w experimental setting

ignoramous · ignoramous · commit 8134609734b6 · 2026-01-12T23:10:30.000+05:30
diff --git a/intra/netstack/icmpecho.go b/intra/netstack/icmpecho.go
@@ -17,7 +17,6 @@ import (
 )
 
 const minICMPPacketSize = header.ICMPv4MinimumSize + header.IPv4MinimumSize
-const useIcmpForwarder = true
 
 // const typicalICMPEchoPayloadSize = 64 // or 56
 // const expectedICMPPacketSize = header.IPv6MinimumSize + header.ICMPv6MinimumSize + typicalICMPEchoPayloadSize
@@ -85,6 +84,8 @@ func (r *icmpResponder) handle(h *icmpForwarder, nic tcpip.NICID, pkt *stack.Pac
 		return
 	}
 
+	useIcmpForwarder := settings.ExperimentalWireGuard.Load()
+
 	c := pkt.Clone()
 	defer c.DecRef()
 

Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,6 @@ import (`
`17`	`17`	`)`
`18`	`18`
`19`	`19`	`const minICMPPacketSize = header.ICMPv4MinimumSize + header.IPv4MinimumSize`
`20`		`-const useIcmpForwarder = true`
`21`	`20`
`22`	`21`	`// const typicalICMPEchoPayloadSize = 64 // or 56`
`23`	`22`	`// const expectedICMPPacketSize = header.IPv6MinimumSize + header.ICMPv6MinimumSize + typicalICMPEchoPayloadSize`
`@@ -85,6 +84,8 @@ func (r icmpResponder) handle(h icmpForwarder, nic tcpip.NICID, pkt *stack.Pac`
`85`	`84`	`return`
`86`	`85`	`}`
`87`	`86`
	`87`	`+ useIcmpForwarder := settings.ExperimentalWireGuard.Load()`
	`88`	`+`
`88`	`89`	`c := pkt.Clone()`
`89`	`90`	`defer c.DecRef()`
`90`	`91`