fix: process IPv6 Link-Local address (#1657)

adapter/inbound/util.go

@@ -61,3 +61,19 @@ func parseHTTPAddr(request *http.Request) *C.Metadata {
 
 	return metadata
 }
+
+func prefixesContains(prefixes []netip.Prefix, addr netip.Addr) bool {
+	if len(prefixes) == 0 {
+		return false
+	}
+	if !addr.IsValid() {
+		return false
+	}
+	addr = addr.Unmap().WithZone("") // netip.Prefix.Contains returns false if ip has an IPv6 zone
+	for _, prefix := range prefixes {
+		if prefix.Contains(addr) {
+			return true
+		}
+	}
+	return false
+}