iptables/0051-extensions-hashlimit-Fix-tests-with-HZ-100.patch

From 07cfafd077bbd247bf75c0a3399569af58a63915 Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Mon, 9 Aug 2021 18:48:58 +0200
Subject: [PATCH] extensions: hashlimit: Fix tests with HZ=100

With the kernel ticking at 100Hz, a limit of 1/day with burst 5 does not
overflow in kernel, making the test unstable depending on kernel config.
Change it to not overflow with 1000Hz either by increasing the burst
value by a factor of 100.

Fixes: fcf9f6f25db11 ("extensions: libxt_hashlimit: add unit test")
Signed-off-by: Phil Sutter <phil@nwl.cc>
(cherry picked from commit bef9dc575625a98a5e6ed8ca37e49031cdba5937)
---
 extensions/libxt_hashlimit.t | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/extensions/libxt_hashlimit.t b/extensions/libxt_hashlimit.t
index ccd0d1e6a2a1a..8369933786f68 100644
--- a/extensions/libxt_hashlimit.t
+++ b/extensions/libxt_hashlimit.t
@@ -3,14 +3,12 @@
 -m hashlimit --hashlimit-above 1000000/sec --hashlimit-burst 5 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-above 1/min --hashlimit-burst 5 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-above 1/hour --hashlimit-burst 5 --hashlimit-name mini1;=;OK
-# kernel says "xt_hashlimit: overflow, try lower: 864000000/5"
--m hashlimit --hashlimit-above 1/day --hashlimit-burst 5 --hashlimit-name mini1;;FAIL
+-m hashlimit --hashlimit-above 1/day --hashlimit-burst 500 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-upto 1/sec --hashlimit-burst 5 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-upto 1000000/sec --hashlimit-burst 5 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-upto 1/min --hashlimit-burst 5 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-upto 1/hour --hashlimit-burst 5 --hashlimit-name mini1;=;OK
-# kernel says "xt_hashlimit: overflow, try lower: 864000000/5"
--m hashlimit --hashlimit-upto 1/day --hashlimit-burst 5 --hashlimit-name mini1;;FAIL
+-m hashlimit --hashlimit-upto 1/day --hashlimit-burst 500 --hashlimit-name mini1;=;OK
 -m hashlimit --hashlimit-upto 1/sec --hashlimit-burst 1 --hashlimit-name mini1 --hashlimit-htable-expire 2000;=;OK
 -m hashlimit --hashlimit-upto 1/sec --hashlimit-burst 1 --hashlimit-mode srcip --hashlimit-name mini1 --hashlimit-htable-expire 2000;=;OK
 -m hashlimit --hashlimit-upto 1/sec --hashlimit-burst 1 --hashlimit-mode dstip --hashlimit-name mini1 --hashlimit-htable-expire 2000;=;OK
-- 
2.40.0