[XFRM]: Support to increment packet dropping statistics.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index f835ab458f5b..6644fc6d5427 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -72,6 +72,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
 
                 sp = secpath_dup(skb->sp);
                 if (!sp) {
+                        XFRM_INC_STATS(LINUX_MIB_XFRMINERROR);
                         goto drop;
                 }
                 if (skb->sp)
@@ -80,6 +81,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
         }
 
         if (1 + skb->sp->len == XFRM_MAX_DEPTH) {
+                XFRM_INC_STATS(LINUX_MIB_XFRMINBUFFERERROR);
                 goto drop;
         }
 
@@ -149,6 +151,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
         }
 
         if (!x) {
+                XFRM_INC_STATS(LINUX_MIB_XFRMINNOSTATES);
                 goto drop;
         }