From e7dfb09a3624a32df2dd00683875d0e56406a603 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Tue, 6 Sep 2005 15:10:00 -0700 Subject: [PATCH] [NETFILTER]: Fix HW checksum handling in nfnetlink_queue Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nfnetlink_queue.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index 249bddb28ac..f81fe8c52e9 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -371,6 +371,12 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue, 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 @@ nfqnl_mangle(void *data, int data_len, struct nfqnl_queue_entry *e) 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; }