[NETFILTER]: nf_conntrack: add __nf_copy() to copy members in skb
This unifies the codes to copy netfilter related datas. Note that
__nf_copy() assumes destination skb doesn't have any netfilter
related members.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 39a6da2..62ab1ab 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1498,8 +1498,25 @@
#endif
}
+/* Note: This doesn't put any conntrack and bridge info in dst. */
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
+{
+ dst->nfct = src->nfct;
+ nf_conntrack_get(src->nfct);
+ dst->nfctinfo = src->nfctinfo;
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ dst->nfct_reasm = src->nfct_reasm;
+ nf_conntrack_get_reasm(src->nfct_reasm);
+#endif
+#ifdef CONFIG_BRIDGE_NETFILTER
+ dst->nf_bridge = src->nf_bridge;
+ nf_bridge_get(src->nf_bridge);
+#endif
+}
+
#else /* CONFIG_NETFILTER */
static inline void nf_reset(struct sk_buff *skb) {}
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src) {}
#endif /* CONFIG_NETFILTER */
#ifdef CONFIG_NETWORK_SECMARK