From c4d774fc498a232f215f844cf69cfd8ecc0db1af Mon Sep 17 00:00:00 2001
From: Rafael Campos Las Heras <methril@gmail.com>
Date: Tue, 5 Apr 2022 09:26:28 -0300
Subject: [PATCH] Fix expression parsing for notracking

Fix the expression parsing for non data content like `notracking`
expression.
---
 rule.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rule.go b/rule.go
index be5473f..5729ef3 100644
--- a/rule.go
+++ b/rule.go
@@ -227,6 +227,10 @@ func exprsFromMsg(b []byte) ([]expr.Any, error) {
 				switch ad.Type() {
 				case unix.NFTA_EXPR_NAME:
 					name = ad.String()
+					if name == "notrack" {
+						e := &expr.Notrack{}
+						exprs = append(exprs, e)
+					}
 				case unix.NFTA_EXPR_DATA:
 					var e expr.Any
 					switch name {