[NETFILTER]: nf_conntrack_tcp: fix connection reopening fix
Setting the last_dir parameter was missing from the previous one.
Signed-off-by: Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx>
Tested-by: Krzysztof Piotr Oledzki <ole@xxxxxx>
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
commit 9768fafed7a5588757d972b2f511cb17a874f496
tree f0a8526f52a503a1cff944c9dc3012e05763310a
parent d85714d81cc0408daddb68c10f7fd69eafe7c213
author Jozsef Kadlecsik <kadlec@xxxxxxxxxxxxxxxxx> Thu, 18 Oct 2007 12:09:51 +0200
committer Patrick McHardy <kaber@xxxxxxxxx> Thu, 18 Oct 2007 12:09:51 +0200
net/netfilter/nf_conntrack_proto_tcp.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index c707534..4dc23ab 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -834,10 +834,12 @@ static int tcp_packet(struct nf_conn *conntrack,
case TCP_CONNTRACK_SYN_SENT:
if (old_state < TCP_CONNTRACK_TIME_WAIT)
break;
- if (conntrack->proto.tcp.seen[!dir].flags &
- IP_CT_TCP_FLAG_CLOSE_INIT) {
- /* Attempt to reopen a closed connection.
- * Delete this connection and look up again. */
+ if ((conntrack->proto.tcp.seen[!dir].flags &
+ IP_CT_TCP_FLAG_CLOSE_INIT)
+ || (conntrack->proto.tcp.last_dir == dir
+ && conntrack->proto.tcp.last_index == TCP_RST_SET)) {
+ /* Attempt to reopen a closed/aborted connection.
+ * Delete this connection and look up again. */
write_unlock_bh(&tcp_lock);
if (del_timer(&conntrack->timeout))
conntrack->timeout.function((unsigned long)
@@ -925,6 +927,7 @@ static int tcp_packet(struct nf_conn *conntrack,
in_window:
/* From now on we have got in-window packets */
conntrack->proto.tcp.last_index = index;
+ conntrack->proto.tcp.last_dir = dir;
pr_debug("tcp_conntracks: ");
NF_CT_DUMP_TUPLE(tuple);
-
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