netfilter: nfnetlink_queue: add skb info attribute

[platform/adaptation/renesas_rcar/renesas_kernel.git] / net / netfilter / nfnetlink_queue_core.c

diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index edbae4c..d052cd6 100644 (file)
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -272,6 +272,18 @@ nfqnl_zcopy(struct sk_buff *to, const struct sk_buff *from, int len, int hlen)
        skb_shinfo(to)->nr_frags = j;
 }
 
+static int nfqnl_put_packet_info(struct sk_buff *nlskb, struct sk_buff *packet)
+{
+       __u32 flags = 0;
+
+       if (packet->ip_summed == CHECKSUM_PARTIAL)
+               flags = NFQA_SKB_CSUMNOTREADY;
+       if (skb_is_gso(packet))
+               flags |= NFQA_SKB_GSO;
+
+       return flags ? nla_put_be32(nlskb, NFQA_SKB_INFO, htonl(flags)) : 0;
+}
+
 static struct sk_buff *
 nfqnl_build_packet_message(struct nfqnl_instance *queue,
                           struct nf_queue_entry *entry,
@@ -301,6 +313,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 #endif
                + nla_total_size(sizeof(u_int32_t))     /* mark */
                + nla_total_size(sizeof(struct nfqnl_msg_packet_hw))
+               + nla_total_size(sizeof(u_int32_t))     /* skbinfo */
                + nla_total_size(sizeof(u_int32_t));    /* cap_len */
 
        if (entskb->tstamp.tv64)
@@ -454,6 +467,9 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
        if (cap_len > 0 && nla_put_be32(skb, NFQA_CAP_LEN, htonl(cap_len)))
                goto nla_put_failure;
 
+       if (nfqnl_put_packet_info(skb, entskb))
+               goto nla_put_failure;
+
        if (data_len) {
                struct nlattr *nla;