[PATCH v2 iptables] connlabel: clarify default config path

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Pablo suggested to print full config file path for connlabel.conf
parsing errors.

Suggested-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
 extensions/libxt_connlabel.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/extensions/libxt_connlabel.c b/extensions/libxt_connlabel.c
index 7e4ff26..2af5eca 100644
--- a/extensions/libxt_connlabel.c
+++ b/extensions/libxt_connlabel.c
@@ -34,6 +34,8 @@ static const struct xt_option_entry connlabel_mt_opts[] = {
  */
 static void connlabel_open(void)
 {
+	const char *fname;
+
 	if (map)
 		return;
 
@@ -41,12 +43,13 @@ static void connlabel_open(void)
 	if (map != NULL)
 		return;
 
+	fname = nfct_labels_get_path();
 	if (errno) {
 		xtables_error(RESOURCE_PROBLEM,
-			"cannot open connlabel.conf: %s", strerror(errno));
+			"cannot open %s: %s", fname, strerror(errno));
 	} else {
 		xtables_error(RESOURCE_PROBLEM,
-			"cannot parse label, maybe valid label map is empty");
+			"cannot parse %s: no labels found", fname);
 	}
 }
 
-- 
2.7.3

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