From cb866e3298cd7412503fc7e2c265753c853fab9d Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Fri, 23 Oct 2015 07:52:58 +0200
Subject: [PATCH] xfrm: Increment statistic counter on inner mode error
Increment the LINUX_MIB_XFRMINSTATEMODEERROR statistic counter
to notify about dropped packets if we fail to fetch a inner mode.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
net/xfrm/xfrm_input.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 60ce7014e1b09..ad7f5b3f9b619 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -330,8 +330,10 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
if (x->sel.family == AF_UNSPEC) {
inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol);
- if (inner_mode == NULL)
+ if (inner_mode == NULL) {
+ XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMODEERROR);
goto drop;
+ }
}
if (inner_mode->input(x, skb)) {