fix: track received packets dropped by post filter

coadler · coadler · commit 2d6503f027c3 · 2022-11-17T14:45:04.000-06:00
diff --git a/net/tstun/wrap.go b/net/tstun/wrap.go
@@ -665,6 +665,11 @@ func (t *Wrapper) filterIn(buf []byte) filter.Response {
 
 	if t.PostFilterIn != nil {
 		if res := t.PostFilterIn(p, t); res.IsDrop() {
+			if res == filter.DropSilently {
+				if t.stats.enabled.Load() {
+					t.stats.UpdateRx(buf)
+				}
+			}
 			return res
 		}
 	}

Original file line number	Diff line number	Diff line change
`@@ -665,6 +665,11 @@ func (t *Wrapper) filterIn(buf []byte) filter.Response {`
`665`	`665`
`666`	`666`	`if t.PostFilterIn != nil {`
`667`	`667`	`if res := t.PostFilterIn(p, t); res.IsDrop() {`
	`668`	`+ if res == filter.DropSilently {`
	`669`	`+ if t.stats.enabled.Load() {`
	`670`	`+ t.stats.UpdateRx(buf)`
	`671`	`+ }`
	`672`	`+ }`
`668`	`673`	`return res`
`669`	`674`	`}`
`670`	`675`	`}`