netdev - [PATCH iproute2 5/5] tc: flower: fix output for ip tos and ttl

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Date:   Wed, 13 Nov 2019 12:12:45 +0200
From:   Roi Dayan <roid@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     David Ahern <dsahern@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Jiri Pirko <jiri@...lanox.com>,
        Eli Britstein <elibr@...lanox.com>,
        Roi Dayan <roid@...lanox.com>
Subject: [PATCH iproute2 5/5] tc: flower: fix output for ip tos and ttl

From: Eli Britstein <elibr@...lanox.com>

Fix the output for ip tos and ttl to be numbers in JSON format.

Example:
$ tc qdisc add dev eth0 ingress
$ tc filter add dev eth0 protocol ip parent ffff: prio 1 flower skip_hw \
      ip_tos 5/0xf action drop

Non JSON format remains the same:
$ tc filter show dev eth0 parent ffff:
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  ip_tos 5/0xf
  skip_hw
  not_in_hw
        action order 1: gact action drop
         random type none pass val 0
         index 1 ref 1 bind 1

JSON format is changed (partial output):
$ tc -p -j filter show dev eth0 parent ffff:
Before:
        "options": {
            "keys": {
                "ip_tos": "0x5/f",
                ...
After:
        "options": {
            "keys": {
                "ip_tos": 5,
                "ip_tos_mask": 15,
                ...

Fixes: 6ea2c2b1cff6 ("tc: flower: add support for matching on ip tos and ttl")
Signed-off-by: Eli Britstein <elibr@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 tc/f_flower.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/tc/f_flower.c b/tc/f_flower.c
index 724577563c27..1b518ef30583 100644
--- a/tc/f_flower.c
+++ b/tc/f_flower.c
@@ -1617,20 +1617,7 @@ static void flower_print_ip_proto(__u8 *p_ip_proto,
 static void flower_print_ip_attr(const char *name, struct rtattr *key_attr,
 				 struct rtattr *mask_attr)
 {
-	SPRINT_BUF(namefrm);
-	SPRINT_BUF(out);
-	size_t done;
-
-	if (!key_attr)
-		return;
-
-	done = sprintf(out, "0x%x", rta_getattr_u8(key_attr));
-	if (mask_attr)
-		sprintf(out + done, "/%x", rta_getattr_u8(mask_attr));
-
-	print_string(PRINT_FP, NULL, "%s  ", _SL_);
-	sprintf(namefrm, "%s %%s", name);
-	print_string(PRINT_ANY, name, namefrm, out);
+	print_masked_u8(name, key_attr, mask_attr, true);
 }
 
 static void flower_print_matching_flags(char *name,
-- 
2.8.4