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From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: Florian Westphal <fw@strlen.de>
Subject: [PATCH nf 2/4] netfilter: conntrack: place confirm-bit setting in a helper
Date: Mon,  3 Feb 2020 17:37:05 +0100
Message-ID: <20200203163707.27254-3-fw@strlen.de> (raw)
In-Reply-To: <20200203163707.27254-1-fw@strlen.de>

... so it can be re-used from clash resolution in followup patch.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 net/netfilter/nf_conntrack_core.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 5e332b01f3c0..5fda5bd10160 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -894,6 +894,19 @@ static void nf_ct_acct_merge(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
 	}
 }
 
+static void __nf_conntrack_insert_prepare(struct nf_conn *ct)
+{
+	struct nf_conn_tstamp *tstamp;
+
+	atomic_inc(&ct->ct_general.use);
+	ct->status |= IPS_CONFIRMED;
+
+	/* set conntrack timestamp, if enabled. */
+	tstamp = nf_conn_tstamp_find(ct);
+	if (tstamp)
+		tstamp->start = ktime_get_real_ns();
+}
+
 /**
  * nf_ct_resolve_clash - attempt to handle clash without packet drop
  *
@@ -965,7 +978,6 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	struct nf_conntrack_tuple_hash *h;
 	struct nf_conn *ct;
 	struct nf_conn_help *help;
-	struct nf_conn_tstamp *tstamp;
 	struct hlist_nulls_node *n;
 	enum ip_conntrack_info ctinfo;
 	struct net *net;
@@ -1042,13 +1054,8 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 	   setting time, otherwise we'd get timer wrap in
 	   weird delay cases. */
 	ct->timeout += nfct_time_stamp;
-	atomic_inc(&ct->ct_general.use);
-	ct->status |= IPS_CONFIRMED;
 
-	/* set conntrack timestamp, if enabled. */
-	tstamp = nf_conn_tstamp_find(ct);
-	if (tstamp)
-		tstamp->start = ktime_get_real_ns();
+	__nf_conntrack_insert_prepare(ct);
 
 	/* Since the lookup is lockless, hash insertion must be done after
 	 * starting the timer and setting the CONFIRMED bit. The RCU barriers
-- 
2.24.1


  parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-03 16:37 [PATCH nf 0/4] netfilter: conntrack: allow insertion of clashing entries Florian Westphal
2020-02-03 16:37 ` [PATCH nf 1/4] netfilter: conntrack: remove two args from resolve_clash Florian Westphal
2020-02-03 16:37 ` Florian Westphal [this message]
2020-02-03 16:37 ` [PATCH nf 3/4] netfilter: conntrack: split resolve_clash function Florian Westphal
2020-02-03 16:37 ` [PATCH nf 4/4] netfilter: conntrack: allow insertion of clashing entries Florian Westphal
2020-02-17 19:25 ` [PATCH nf 0/4] " Pablo Neira Ayuso
2020-02-17 20:12   ` Florian Westphal

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