From 480775ce1469a9af75092878f14d338f85ca6c9c Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Tue, 15 Nov 2016 02:42:40 +0100 Subject: socket: ensure that saddr routing can deal with interface removal Signed-off-by: Jason A. Donenfeld --- src/tests/netns.sh | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'src/tests/netns.sh') diff --git a/src/tests/netns.sh b/src/tests/netns.sh index 1c638d4..4ee8cd1 100755 --- a/src/tests/netns.sh +++ b/src/tests/netns.sh @@ -247,3 +247,35 @@ n2 wg # Demonstrate n2 can still send packets to n1, since persistent-keepalive will prevent connection tracking entry from expiring (to see entries: `n0 conntrack -L`). pp sleep 3 n2 ping -W 1 -c 1 192.168.241.1 + +n0 iptables -t nat -F +ip0 link del vethrc +ip0 link del vethrs +ip1 link del wg0 +ip2 link del wg0 + +# Test that saddr routing isn't overly sticky +ip1 link add dev wg0 type wireguard +ip2 link add dev wg0 type wireguard +configure_peers +ip1 link add veth1 type veth peer name veth2 +ip1 link set veth2 netns $netns2 +n1 bash -c 'echo 0 > /proc/sys/net/ipv6/conf/veth1/accept_dad' +n2 bash -c 'echo 0 > /proc/sys/net/ipv6/conf/veth2/accept_dad' +n1 bash -c 'echo 1 > /proc/sys/net/ipv4/conf/veth1/promote_secondaries' +ip1 addr add 10.0.0.1/24 dev veth1 +ip1 addr add dead::1/96 dev veth1 +ip2 addr add 10.0.0.2/24 dev veth2 +ip2 addr add dead::2/96 dev veth2 +ip1 link set veth1 up +ip2 link set veth2 up +n1 wg set wg0 peer "$pub2" endpoint 10.0.0.2:2 +n1 ping -W 1 -c 1 192.168.241.2 +ip1 addr add 10.0.0.10/24 dev veth1 +ip1 addr del 10.0.0.1/24 dev veth1 +n1 ping -W 1 -c 1 192.168.241.2 +n1 wg set wg0 peer "$pub2" endpoint [dead::2]:2 +n1 ping -W 1 -c 1 192.168.241.2 +ip1 addr add dead::10/96 dev veth1 +ip1 addr del dead::1/96 dev veth1 +n1 ping -W 1 -c 1 192.168.241.2 -- cgit v1.2.3