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From 7f70eb2a8b2c451683c801b23b25f34071a8882f Mon Sep 17 00:00:00 2001
From: Roi Dayan <roid@nvidia.com>
Date: Thu, 3 Feb 2022 14:20:46 +0200
Subject: [PATCH] tc_util: Fix parsing action control with space and slash
For action police there is an conform-exceed action control
which can be for example "jump 2 / pipe".
The current parsing loop is doing one more iteration than necessary
and results in ok var being 3.
Example filter:
tc filter add dev enp8s0f0_0 ingress protocol ip prio 2 flower \
verbose action police rate 100mbit burst 12m \
conform-exceed jump 1 / pipe mirred egress redirect dev enp8s0f0_1 action drop
Before this change the command will fail.
Trying to add another "pipe" before mirred as a workaround for the stopping the loop
in ok var 3 resulting in result2 not being saved and wrong filter.
... conform-exceed jump 1 / pipe pipe mirred ...
Example dump of the action part:
... action order 1: police 0x1 rate 100Mbit burst 12Mb mtu 2Kb action jump 1 overhead 0b ...
Fix the behavior by removing redundant case 2 handling, either argc is over or breaking.
Example dump of the action part with the fix:
... action order 1: police 0x1 rate 100Mbit burst 12Mb mtu 2Kb action jump 1/pipe overhead 0b ...
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Conflict: NA
Reference: https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit?id=7f70eb2a8b2
---
tc/tc_util.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/tc/tc_util.c b/tc/tc_util.c
index 48065897..b82dbd5d 100644
--- a/tc/tc_util.c
+++ b/tc/tc_util.c
@@ -476,7 +476,6 @@ static int parse_action_control_slash_spaces(int *argc_p, char ***argv_p,
NEXT_ARG();
/* fall-through */
case 0: /* fall-through */
- case 2:
ret = parse_action_control(&argc, &argv,
result_p, allow_num);
if (ret)
--
2.23.0
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