commit 857ed310c013fe0d0059f955048dab589fa7a57a
author Florian Westphal <fw@strlen.de> Thu Jul 21 12:51:17 2016 +0200
committer Pablo Neira Ayuso <pablo@netfilter.org> Fri Jul 22 17:05:10 2016 +0200
tree 8c91bf18eb14cb495c4b07137ba95df3d6695223
parent 23014011ba4209a086931ff402eac1c41abbe456

netfilter: connlabels: move set helper to xt_connlabel

xt_connlabel is the only user so move it.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

net/netfilter/xt_connlabel.c

diff --git a/net/netfilter/xt_connlabel.c b/net/netfilter/xt_connlabel.c
index c9fba8a..03d66f1 100644
--- a/net/netfilter/xt_connlabel.c
+++ b/net/netfilter/xt_connlabel.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_conntrack_labels.h>
 #include <linux/netfilter/x_tables.h>
 
@@ -18,21 +19,12 @@
 MODULE_ALIAS("ipt_connlabel");
 MODULE_ALIAS("ip6t_connlabel");
 
-static bool connlabel_match(const struct nf_conn *ct, u16 bit)
-{
-	struct nf_conn_labels *labels = nf_ct_labels_find(ct);
-
-	if (!labels)
-		return false;
-
-	return test_bit(bit, labels->bits);
-}
-
 static bool
 connlabel_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_connlabel_mtinfo *info = par->matchinfo;
 	enum ip_conntrack_info ctinfo;
+	struct nf_conn_labels *labels;
 	struct nf_conn *ct;
 	bool invert = info->options & XT_CONNLABEL_OP_INVERT;
 
@@ -40,10 +32,21 @@
 	if (ct == NULL || nf_ct_is_untracked(ct))
 		return invert;
 
-	if (info->options & XT_CONNLABEL_OP_SET)
-		return (nf_connlabel_set(ct, info->bit) == 0) ^ invert;
+	labels = nf_ct_labels_find(ct);
+	if (!labels)
+		return invert;
 
-	return connlabel_match(ct, info->bit) ^ invert;
+	if (test_bit(info->bit, labels->bits))
+		return !invert;
+
+	if (info->options & XT_CONNLABEL_OP_SET) {
+		if (!test_and_set_bit(info->bit, labels->bits))
+			nf_conntrack_event_cache(IPCT_LABEL, ct);
+
+		return !invert;
+	}
+
+	return invert;
 }
 
 static int connlabel_mt_check(const struct xt_mtchk_param *par)