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authorJason A. Donenfeld <Jason@zx2c4.com>2021-06-04 17:17:31 +0200
committerDavid S. Miller <davem@davemloft.net>2021-06-04 14:25:14 -0700
commitf8873d11d4121aad35024f9379e431e0c83abead (patch)
tree69685ad08074b204739a05aef265cddc293258e4 /tools
parentacf2492b51c9a3c4dfb947f4d3477a86d315150f (diff)
wireguard: selftests: make sure rp_filter is disabled on vethc
Some distros may enable strict rp_filter by default, which will prevent vethc from receiving the packets with an unrouteable reverse path address. Reported-by: Hangbin Liu <liuhangbin@gmail.com> Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Cc: stable@vger.kernel.org Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/testing/selftests/wireguard/netns.sh1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
index 7ed7cd95e58f..ebc4ee0fe179 100755
--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -363,6 +363,7 @@ ip1 -6 rule add table main suppress_prefixlength 0
ip1 -4 route add default dev wg0 table 51820
ip1 -4 rule add not fwmark 51820 table 51820
ip1 -4 rule add table main suppress_prefixlength 0
+n1 bash -c 'printf 0 > /proc/sys/net/ipv4/conf/vethc/rp_filter'
# Flood the pings instead of sending just one, to trigger routing table reference counting bugs.
n1 ping -W 1 -c 100 -f 192.168.99.7
n1 ping -W 1 -c 100 -f abab::1111