32 lines
1.3 KiB
Diff
32 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Fri, 4 Jun 2021 17:17:31 +0200
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Subject: [PATCH] wireguard: selftests: make sure rp_filter is disabled on
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vethc
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commit f8873d11d4121aad35024f9379e431e0c83abead upstream.
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Some distros may enable strict rp_filter by default, which will prevent
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vethc from receiving the packets with an unrouteable reverse path address.
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Reported-by: Hangbin Liu <liuhangbin@gmail.com>
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Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
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Cc: stable@vger.kernel.org
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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tools/testing/selftests/wireguard/netns.sh | 1 +
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1 file changed, 1 insertion(+)
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--- a/tools/testing/selftests/wireguard/netns.sh
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+++ b/tools/testing/selftests/wireguard/netns.sh
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@@ -363,6 +363,7 @@ ip1 -6 rule add table main suppress_pref
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ip1 -4 route add default dev wg0 table 51820
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ip1 -4 rule add not fwmark 51820 table 51820
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ip1 -4 rule add table main suppress_prefixlength 0
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+n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/vethc/rp_filter'
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# Flood the pings instead of sending just one, to trigger routing table reference counting bugs.
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n1 ping -W 1 -c 100 -f 192.168.99.7
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n1 ping -W 1 -c 100 -f abab::1111
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