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authorOctavian Purdila <opurdila@ixiacom.com>2010-01-17 19:09:39 -0800
committerDavid S. Miller <davem@davemloft.net>2010-01-17 19:09:39 -0800
commit72659ecce68588b74f6c46862c2b4cec137d7a5a (patch)
tree791c5900e2a2b219774904cef7fab90fa462b81c /net/ipv4/tcp_timer.c
parent0ec00f0392b807d57a2281576a96552d7694b6bb (diff)
tcp: account SYN-ACK timeouts & retransmissions
Currently we don't increment SYN-ACK timeouts & retransmissions although we do increment the same stats for SYN. We seem to have lost the SYN-ACK accounting with the introduction of tcp_syn_recv_timer (commit 2248761e in the netdev-vger-cvs tree). This patch fixes this issue. In the process we also rename the v4/v6 syn/ack retransmit functions for clarity. We also add a new request_socket operations (syn_ack_timeout) so we can keep code in inet_connection_sock.c protocol agnostic. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 8816a20c259..de7d1bf9114 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -474,6 +474,12 @@ static void tcp_synack_timer(struct sock *sk)
TCP_TIMEOUT_INIT, TCP_RTO_MAX);
}
+void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req)
+{
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPTIMEOUTS);
+}
+EXPORT_SYMBOL(tcp_syn_ack_timeout);
+
void tcp_set_keepalive(struct sock *sk, int val)
{
if ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN))