From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: [PATCH 02/13] netfilter: ctnetlink: fix dumping of dying/unconfirmed conntracks Date: Wed, 18 Jun 2014 11:44:28 +0200 Message-ID: <1403084679-11227-3-git-send-email-pablo@netfilter.org> References: <1403084679-11227-1-git-send-email-pablo@netfilter.org> Cc: davem@davemloft.net, netdev@vger.kernel.org To: netfilter-devel@vger.kernel.org Return-path: In-Reply-To: <1403084679-11227-1-git-send-email-pablo@netfilter.org> Sender: netdev-owner@vger.kernel.org List-Id: netfilter-devel.vger.kernel.org The dumping prematurely stops, it seems the callback argument that indicates that all entries have been dumped is set after iterating on the first cpu list. The dumping also may stop before the entire per-cpu list content is also dumped. With this patch, conntrack -L dying now shows the dying list content again. Fixes: b7779d06 ("netfilter: conntrack: spinlock per cpu to protect special lists.") Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_netlink.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 5857963..ef0eedd 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1163,9 +1163,6 @@ ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying if (cb->args[2]) return 0; - if (cb->args[0] == nr_cpu_ids) - return 0; - for (cpu = cb->args[0]; cpu < nr_cpu_ids; cpu++) { struct ct_pcpu *pcpu; @@ -1194,6 +1191,7 @@ restart: rcu_read_unlock(); if (res < 0) { nf_conntrack_get(&ct->ct_general); + cb->args[0] = cpu; cb->args[1] = (unsigned long)ct; spin_unlock_bh(&pcpu->lock); goto out; @@ -1202,10 +1200,10 @@ restart: if (cb->args[1]) { cb->args[1] = 0; goto restart; - } else - cb->args[2] = 1; + } spin_unlock_bh(&pcpu->lock); } + cb->args[2] = 1; out: if (last) nf_ct_put(last); -- 1.7.10.4