[Patch iproute2] tc: add hit counter for matchall

[Cong Wang]

Cc: Martin Olsson <martin.olsson+net...@sentorsecurity.com>
Cc: Jamal Hadi Salim <j...@mojatatu.com>
Cc: Jiri Pirko <j...@resnulli.us>
Cc: David Ahern <dsah...@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
---
 tc/f_matchall.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tc/f_matchall.c b/tc/f_matchall.c
index 5ebd0415..03dd51de 100644
--- a/tc/f_matchall.c
+++ b/tc/f_matchall.c
@@ -114,6 +114,7 @@ static int matchall_print_opt(struct filter_util *qu, FILE 
*f,
                           struct rtattr *opt, __u32 handle)
 {
        struct rtattr *tb[TCA_MATCHALL_MAX+1];
+       struct tc_matchall_pcnt *pf = NULL;
 
        if (opt == NULL)
                return 0;
@@ -143,6 +144,19 @@ static int matchall_print_opt(struct filter_util *qu, FILE 
*f,
                        print_bool(PRINT_ANY, "not_in_hw", "\n  not_in_hw", 
true);
        }
 
+       if (tb[TCA_MATCHALL_PCNT]) {
+               if (RTA_PAYLOAD(tb[TCA_MATCHALL_PCNT])  < sizeof(*pf)) {
+                       print_string(PRINT_FP, NULL, "Broken perf counters\n", 
NULL);
+                       return -1;
+               }
+               pf = RTA_DATA(tb[TCA_MATCHALL_PCNT]);
+       }
+
+       if (show_stats && NULL != pf)
+               print_u64(PRINT_ANY, "rule_hit", " (rule hit %llu)",
+                       (unsigned long long) pf->rhit);
+
+
        if (tb[TCA_MATCHALL_ACT])
                tc_print_action(f, tb[TCA_MATCHALL_ACT], 0);
 
-- 
2.20.1