diff options
| author | Alexey Perevalov <a.perevalov@samsung.com> | 2014-07-30 19:17:55 +0400 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-07-30 18:16:56 +0200 |
| commit | d24675cb1fb0f4f5b44ce4ed9cf5c17caf0efa6b (patch) | |
| tree | 574faa0e143b4e54daa21e44c6b5d58e31ca826e /net | |
| parent | d4da843e6fad4f278fe82b075d8e394cff05c95c (diff) | |
| download | linux-d24675cb1fb0f4f5b44ce4ed9cf5c17caf0efa6b.tar.gz | |
netfilter: nfnetlink_acct: dump unmodified nfacct flags
NFNL_MSG_ACCT_GET_CTRZERO modifies dumped flags, in this case client see unmodified (uncleared) counter value and cleared overquota state - end user doesn't know anything about overquota state, unless end user subscribed on overquota report. Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nfnetlink_acct.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c index 2baa125c2e8d..11d863c8b11f 100644 --- a/net/netfilter/nfnetlink_acct.c +++ b/net/netfilter/nfnetlink_acct.c @@ -129,6 +129,7 @@ nfnl_acct_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type, struct nfgenmsg *nfmsg; unsigned int flags = portid ? NLM_F_MULTI : 0; u64 pkts, bytes; + u32 old_flags; event |= NFNL_SUBSYS_ACCT << 8; nlh = nlmsg_put(skb, portid, seq, event, sizeof(*nfmsg), flags); @@ -143,6 +144,7 @@ nfnl_acct_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type, if (nla_put_string(skb, NFACCT_NAME, acct->name)) goto nla_put_failure; + old_flags = acct->flags; if (type == NFNL_MSG_ACCT_GET_CTRZERO) { pkts = atomic64_xchg(&acct->pkts, 0); bytes = atomic64_xchg(&acct->bytes, 0); @@ -160,7 +162,7 @@ nfnl_acct_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type, if (acct->flags & NFACCT_F_QUOTA) { u64 *quota = (u64 *)acct->data; - if (nla_put_be32(skb, NFACCT_FLAGS, htonl(acct->flags)) || + if (nla_put_be32(skb, NFACCT_FLAGS, htonl(old_flags)) || nla_put_be64(skb, NFACCT_QUOTA, cpu_to_be64(*quota))) goto nla_put_failure; } |