{pktgen, xfrm} Add statistics counting when transforming

so /proc/net/xfrm_stat could give user clue about what's
wrong in this process.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b0075865d29b..156d57b616ac 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2479,6 +2479,7 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
 {
         struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x;
         int err = 0;
+        struct net *net = dev_net(pkt_dev->odev);
 
         if (!x)
                 return 0;
@@ -2488,12 +2489,15 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
                 return 0;
 
         err = x->outer_mode->output(x, skb);
-        if (err)
+        if (err) {
+                XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEMODEERROR);
                 goto error;
+        }
         err = x->type->output(x, skb);
-        if (err)
+        if (err) {
+                XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEPROTOERROR);
                 goto error;
-
+        }
         spin_lock_bh(&x->lock);
         x->curlft.bytes += skb->len;
         x->curlft.packets++;