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From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 2/9] netfilter: ctnetlink: using bit to represent the ct event
Date: Fri, 14 Apr 2017 02:26:44 +0200
Message-ID: <1492129611-29336-3-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1492129611-29336-1-git-send-email-pablo@netfilter.org>

From: Liping Zhang <zlpnobody@gmail.com>

Otherwise, creating a new conntrack via nfnetlink:
  # conntrack -I -p udp -s 1.1.1.1 -d 2.2.2.2 -t 10 --sport 10 --dport 20

will emit the wrong ct events(where UPDATE should be NEW):
  # conntrack -E
  [UPDATE] udp      17 10 src=1.1.1.1 dst=2.2.2.2 sport=10 dport=20
  [UNREPLIED] src=2.2.2.2 dst=1.1.1.1 sport=20 dport=10 mark=0

Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_netlink.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 908d858034e4..59ee27deb9a0 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1929,9 +1929,9 @@ static int ctnetlink_new_conntrack(struct net *net, struct sock *ctnl,
 
 			err = 0;
 			if (test_bit(IPS_EXPECTED_BIT, &ct->status))
-				events = IPCT_RELATED;
+				events = 1 << IPCT_RELATED;
 			else
-				events = IPCT_NEW;
+				events = 1 << IPCT_NEW;
 
 			if (cda[CTA_LABELS] &&
 			    ctnetlink_attach_labels(ct, cda) == 0)
-- 
2.1.4

  parent reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-14  0:26 [PATCH 0/9] Netfilter fixes for net Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 1/9] netfilter: xt_TCPMSS: add more sanity tests on tcph->doff Pablo Neira Ayuso
2017-04-14  0:26 ` Pablo Neira Ayuso [this message]
2017-04-14  0:26 ` [PATCH 3/9] netfilter: helper: Add the rcu lock when call __nf_conntrack_helper_find Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 4/9] netfilter: ctnetlink: make it safer when checking the ct helper name Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 5/9] netfilter: make it safer during the inet6_dev->addr_list traversal Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 6/9] netfilter: ctnetlink: skip dumping expect when nfct_help(ct) is NULL Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 7/9] netfilter: nf_ct_expect: use proper RCU list traversal/update APIs Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 8/9] netfilter: nft_hash: do not dump the auto generated seed Pablo Neira Ayuso
2017-04-14  0:26 ` [PATCH 9/9] netfilter: ipt_CLUSTERIP: Fix wrong conntrack netns refcnt usage Pablo Neira Ayuso
2017-04-14 14:59 ` [PATCH 0/9] Netfilter fixes for net David Miller

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