[SK_BUFF]: ipvs_property field must be copied

IPVS used flag NFC_IPVS_PROPERTY in nfcache but as now nfcache was removed the
new flag 'ipvs_property' still needs to be copied. This patch should be
included in 2.6.14.

Further comments from Harald Welte:

Sorry, seems like the bug was introduced by me.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>

net/core/skbuff.c

@@ -410,6 +410,9 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 	C(nfct);
 	nf_conntrack_get(skb->nfct);
 	C(nfctinfo);
+#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
+	C(ipvs_property);
+#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	C(nf_bridge);
 	nf_bridge_get(skb->nf_bridge);
@@ -467,6 +470,9 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->nfct	= old->nfct;
 	nf_conntrack_get(old->nfct);
 	new->nfctinfo	= old->nfctinfo;
+#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
+	new->ipvs_property = old->ipvs_property;
+#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	new->nf_bridge	= old->nf_bridge;
 	nf_bridge_get(old->nf_bridge);

net/ipv4/ip_output.c

@@ -391,6 +391,9 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->nfct = from->nfct;
 	nf_conntrack_get(to->nfct);
 	to->nfctinfo = from->nfctinfo;
+#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
+	to->ipvs_property = from->ipvs_property;
+#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	nf_bridge_put(to->nf_bridge);
 	to->nf_bridge = from->nf_bridge;