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authorEric Leblond <eric@inl.fr>2008-03-10 16:41:43 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-10 16:41:43 -0700
commitcabaa9bfb01eb4cee97ffb8a18405f4c5175d3d9 (patch)
treed1d6e0227240b0600e61d53fe013d1adf8cff20d /net/netfilter
parentb5e85dee2a5433246d5b7488918a1a0ad22c046a (diff)
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[NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb.
Size of the netlink skb was wrongly computed because the formula was using NLMSG_ALIGN instead of NLMSG_SPACE. NLMSG_ALIGN does not add the room for netlink header as NLMSG_SPACE does. This was causing a failure of message building in some cases. On my test system, all messages for packets in range [8*k+41, 8*k+48] where k is an integer were invalid and the corresponding packets were dropped. Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/nfnetlink_queue.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 0043d3a9f87e..c0cc3d3618a3 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -224,7 +224,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
struct net_device *indev;
struct net_device *outdev;
- size = NLMSG_ALIGN(sizeof(struct nfgenmsg))
+ size = NLMSG_SPACE(sizeof(struct nfgenmsg))
+ nla_total_size(sizeof(struct nfqnl_msg_packet_hdr))
+ nla_total_size(sizeof(u_int32_t)) /* ifindex */
+ nla_total_size(sizeof(u_int32_t)) /* ifindex */