From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Tue, 4 Feb 2020 22:17:27 +0100
Subject: wireguard: selftests: ensure non-addition of peers with failed
 precomputation
Patch-mainline: v5.6-rc1
Git-commit: f9398acba6a4ae9cb98bfe4d56414d376eff8d57
References: bsc#1169021 jsc#SLE-12250

Ensure that peers with low order points are ignored, both in the case
where we already have a device private key and in the case where we do
not. This adds points that naturally give a zero output.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Nicolai Stange <nstange@suse.de>
---
 tools/testing/selftests/wireguard/netns.sh |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -516,6 +516,12 @@ n0 wg set wg0 peer "$pub2" allowed-ips 0
 n0 wg set wg0 peer "$pub2" allowed-ips 0.0.0.0/0
 n0 wg set wg0 peer "$pub2" allowed-ips ::/0,1700::/111,5000::/4,e000::/37,9000::/75
 n0 wg set wg0 peer "$pub2" allowed-ips ::/0
+n0 wg set wg0 peer "$pub2" remove
+low_order_points=( AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= 4Ot6fDtBuK4WVuP68Z/EatoJjeucMrH9hmIFFl9JuAA= X5yVvKNQjCSx0LFVnIPvWwREXMRYHI6G2CJO3dCfEVc= 7P///////////////////////////////////////38= 7f///////////////////////////////////////38= 7v///////////////////////////////////////38= )
+n0 wg set wg0 private-key /dev/null ${low_order_points[@]/#/peer }
+[[ -z $(n0 wg show wg0 peers) ]]
+n0 wg set wg0 private-key <(echo "$key1") ${low_order_points[@]/#/peer }
+[[ -z $(n0 wg show wg0 peers) ]]
 ip0 link del wg0
 
 declare -A objects