[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP

Signed-off-by: Wei Dong <weidong@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index dd02a45..0301dd4 100644 (file)
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -50,8 +50,12 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                               RT_CONN_FLAGS(sk), oif,
                               sk->sk_protocol,
                               inet->sport, usin->sin_port, sk, 1);
-       if (err)
+       if (err) {
+               if (err == -ENETUNREACH)
+                       IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
                return err;
+       }
+
        if ((rt->rt_flags & RTCF_BROADCAST) && !sock_flag(sk, SOCK_BROADCAST)) {
                ip_rt_put(rt);
                return -EACCES;

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5a3e7f8..47c6105 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -192,8 +192,11 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                               RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
                               IPPROTO_TCP,
                               inet->sport, usin->sin_port, sk, 1);
-       if (tmp < 0)
+       if (tmp < 0) {
+               if (tmp == -ENETUNREACH)
+                       IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
                return tmp;
+       }
 
        if (rt->rt_flags & (RTCF_MULTICAST | RTCF_BROADCAST)) {
                ip_rt_put(rt);

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 4c7e95f..5da703e 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -722,8 +722,11 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                                                 .dport = dport } } };
                security_sk_classify_flow(sk, &fl);
                err = ip_route_output_flow(&rt, &fl, sk, 1);
-               if (err)
+               if (err) {
+                       if (err == -ENETUNREACH)
+                               IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
                        goto out;
+               }
 
                err = -EACCES;
                if ((rt->rt_flags & RTCF_BROADCAST) &&