[NETFILTER]: Fix HW checksum handling in nfnetlink_queue
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 249bddb..f81fe8c 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -371,6 +371,12 @@
break;
case NFQNL_COPY_PACKET:
+ if (entry->skb->ip_summed == CHECKSUM_HW &&
+ (*errp = skb_checksum_help(entry->skb,
+ entry->info->outdev == NULL))) {
+ spin_unlock_bh(&queue->lock);
+ return NULL;
+ }
if (queue->copy_range == 0
|| queue->copy_range > entry->skb->len)
data_len = entry->skb->len;
@@ -636,7 +642,7 @@
if (!skb_make_writable(&e->skb, data_len))
return -ENOMEM;
memcpy(e->skb->data, data, data_len);
-
+ e->skb->ip_summed = CHECKSUM_NONE;
return 0;
}