diff options
| author | Vijay Subramanian <subramanian.vijay@gmail.com> | 2013-01-31 08:24:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-04 13:06:27 -0500 |
| commit | 848bf15f361c7c22da7998c81d50ed3dffbc827d (patch) | |
| tree | 161e94adaafc94a9d4b320ba3e8d9cd829ad3e97 | |
| parent | 9665d5d62487e8e7b1f546c00e11107155384b9a (diff) | |
tcp: Update MIB counters for drops
This patch updates LINUX_MIB_LISTENDROPS in tcp_v4_conn_request() and
tcp_v4_err(). tcp_v4_conn_request() in particular can drop SYNs for various
reasons which are not currently tracked.
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 629937d514eb..eadb693eef55 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -496,6 +496,7 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info) * errors returned from accept(). */ inet_csk_reqsk_queue_drop(sk, req, prev); + NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS); goto out; case TCP_SYN_SENT: @@ -1502,7 +1503,6 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) */ if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1) { NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS); - NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS); goto drop; } @@ -1669,6 +1669,7 @@ drop_and_release: drop_and_free: reqsk_free(req); drop: + NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_LISTENDROPS); return 0; } EXPORT_SYMBOL(tcp_v4_conn_request); |